/* =========================================================
   CITEVRA — Static Frontend Prototype
   style.css
   ========================================================= */

/* ---------- 1. CSS VARIABLES ---------- */
:root {
    /* Brand Palette derived from the Citevra logo */
    --primary: #101b3b;
    --primary-dark: #1c2a5b;
    --primary-light: #586aa3;
    --primary-ultra-light: #edf2ff;
    --accent: #d4a637;
    --accent-dark: #b88a1d;
    --accent-soft: #f9f0d2;
    --brand-cream: #fbfaf6;
    --brand-navy: #101b3b;
    --brand-navy-2: #1c2a5b;

    /* Premium Color Palette */
    --emerald: #10b981;
    --emerald-light: #d1fae5;
    --emerald-dark: #047857;

    --violet: #8b5cf6;
    --violet-light: #ede9fe;
    --violet-dark: #6d28d9;

    --amber: #f59e0b;
    --amber-light: #fef3c7;
    --amber-dark: #d97706;

    --coral: #f87171;
    --coral-light: #fee2e2;
    --coral-dark: #dc2626;

    --teal: #14b8a6;
    --teal-light: #ccfbf1;
    --teal-dark: #0d9488;

    --secondary: #6c757d;
    --success: #198754;
    --info: #0dcaf0;
    --warning: #ffc107;
    --danger: #dc3545;

    --white: #fbfaf6;
    --gray-50: #f8f9fa;
    --gray-100: #f0f2f5;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;

    --ink-900: #1a1d29;
    --ink-700: #4a4f5c;

    /* Type */
    --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    --font-sans: 'IBM Plex Sans', -apple-system, Segoe UI, Roboto, sans-serif;

    /* Layout */
    --container-max: 1200px;
    --header-height: 70px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 2px 8px rgba(16, 27, 59, 0.08);
    --shadow-md: 0 4px 20px rgba(16, 27, 59, 0.10);
    --shadow-lg: 0 8px 30px rgba(16, 27, 59, 0.12);
    --shadow-xl: 0 12px 40px rgba(16, 27, 59, 0.15);

    /* Animation */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ---------- ANIMATIONS ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ---------- 2. RESET ---------- */
* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    max-width: 100%;
    overflow-x: clip;
}

body {
    font-family: var(--font-sans);
    color: var(--gray-900);
    background: var(--white);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: var(--header-height);
}

body.menu-open {
    overflow: hidden;
}

img { max-width: 100%; display: block; }

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-fast);
}
a:hover { 
    color: var(--primary-dark);
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

ul { margin: 0; padding: 0; }

/* ---------- 3. TYPOGRAPHY ---------- */
h1, h2, h3, h4 {
    font-family: var(--font-sans);
    color: var(--gray-900);
    line-height: 1.3;
    margin: 0;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.section h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

p { margin: 0 0 0.75rem;}

/* ---------- 4. FOCUS STATES ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
.nav-link:focus-visible,
.mobile-drawer-body a:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* ---------- 5. BUTTONS ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-transform: none;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.btn-sm { 
    padding: 0.5rem 1rem; 
    font-size: 0.875rem;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border-color: var(--primary);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-color: var(--primary-dark);
    color: var(--white);
}

.btn-outline-primary {
    background: transparent;
    border-color: rgba(16, 27, 59, 0.18);
    color: var(--primary);
    box-shadow: none;
}
.btn-outline-primary:hover {
    background: rgba(16, 27, 59, 0.04);
    color: var(--primary-dark);
}

.btn-light {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
}
.btn-light:hover { 
    background: var(--gray-100);
    color: var(--primary-dark);
}

.btn-outline-light {
    background: transparent;
    border-color: rgba(255,255,255,0.8);
    color: var(--white);
    box-shadow: none;
}
.btn-outline-light:hover { 
    background: rgba(255,255,255,0.15);
    color: var(--white);
    border-color: var(--white);
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition-fast);
}
.icon-btn:hover { 
    background: var(--primary-ultra-light);
    transform: scale(1.1);
}

/* ---------- 6. HEADER ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 2px 12px rgba(16, 27, 59, 0.08);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(16, 27, 59, 0.08);
    transform: translateY(0);
    transition: transform 0.28s ease, box-shadow 0.28s ease, background 0.28s ease, border-color 0.28s ease;
    animation: slideInRight var(--transition-normal);
}

.site-header.is-scrolled {
    background: rgba(251, 250, 246, 0.96);
    box-shadow: 0 10px 30px rgba(16, 27, 59, 0.12);
    border-bottom-color: rgba(16, 27, 59, 0.12);
}

.site-header.is-scrolled .wordmark {
    transform: scale(0.98);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 1.5rem;
}
.header-inner a > img.logo{
	height: 40px;
	width: auto;
	object-fit: contain;
}
.wordmark {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary) !important;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: -0.02em;
    flex-shrink: 0;
    transition: var(--transition-fast);
}
.wordmark:hover {
    transform: scale(1.05);
}
.wordmark i { 
    color: var(--accent);
    font-size: 1.4rem;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    flex: 1;
    justify-content: center;
}

.nav-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    position: relative;
}
.nav-link:hover { 
    color: var(--primary-dark);
    background: rgba(212, 166, 55, 0.08);
}
.nav-link.active {
    color: var(--primary);
    background: rgba(212, 166, 55, 0.12);
}

/* Icon styling for desktop navbar links */
.main-nav .nav-link i {
    margin-right: 0.5rem;
    font-size: 1rem;
    vertical-align: middle;
    color: var(--primary);
    opacity: 0.95;
    transition: transform 180ms ease, opacity 180ms ease;
}
.main-nav .nav-link:hover i { transform: translateY(-1px); opacity: 1; }

/* Professional desktop navbar enhancements */
.main-nav .nav-link::after {
    content: "";
    position: absolute;
    left: 20%;
    right: 20%;
    bottom: 6px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--primary));
    transform: scaleX(0);
    transform-origin: center left;
    transition: transform 220ms ease;
    border-radius: 2px;
    opacity: 0.95;
}
.main-nav .nav-link:hover::after { transform: scaleX(1); transform-origin: center left; }
.main-nav .nav-link.active::after { transform: scaleX(1); }

/* Align header elements and style CTAs on desktop */
.header-ctas { display: none; align-items: center; gap: 0.125rem; }
.header-ctas .btn-user{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: none;
    box-shadow: none;
    background: transparent;
    color: var(--primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition-fast);
}
.header-ctas .btn-user:hover { 
    background: var(--primary-ultra-light);
    transform: none;
    transition: none;
}


@media (min-width: 992px) {
    .header-inner { max-width: 1180px; margin: 0 auto; padding: 0 12px; }
    .main-nav { justify-content: center; gap: 0.01rem; }
    .wordmark { flex: 0 0 auto; }
    .header-actions { justify-content: flex-end; gap: 0.125rem; }
    .mobile-menu-toggle { display: none; }
    .header-ctas { display: inline-flex; }
    .btn-outline-primary { border-color: rgba(16, 27, 59, 0.15); color: var(--primary); }
    .btn-outline-primary:hover { background: rgba(16, 27, 59, 0.06); }
    .site-header { padding: 8px 0; }
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.mobile-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--primary);
    font-size: 1.3rem;
    cursor: pointer;
    transition: var(--transition-fast);
}
.mobile-menu-toggle:hover { 
    background: var(--primary-ultra-light);
    transform: scale(1.1);
}

.header-search-panel {
    display: none;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    animation: fadeIn var(--transition-fast);
}
.header-search-panel.is-open { display: block; }

.header-search-form {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 24px;
    color: var(--gray-600);
}
.header-search-input {
    flex: 1;
    background: var(--white);
    border: 2px solid var(--gray-300);
    color: var(--gray-900);
    border-radius: var(--radius-md);
    padding: 0.65rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}
.header-search-input::placeholder { color: var(--gray-500); }
.header-search-input:focus { 
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-ultra-light);
}

/* ---------- 7. MOBILE DRAWER ---------- */
.mobile-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    backdrop-filter: blur(4px);
}
.mobile-drawer-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 320px;
    max-width: 85vw;
    background: var(--white);
    z-index: 9999;
    transform: translateX(-100%);
    transition: transform 0.28s ease;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}
.mobile-drawer.is-open {
    transform: translateX(0);
}

/* Mobile: keep header fixed and place drawer/overlay below header */
@media (max-width: 991px) {
    .main-nav {
        display: none;
    }

    .header-ctas {
        display: none;
    }

    .mobile-menu-toggle {
        display: inline-flex;
    }

    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        width: 100%;
        z-index: 1100;
        transition: transform 0.26s ease, box-shadow 0.26s ease, background 0.26s ease;
    }
    .site-header.is-scrolled {
        box-shadow: 0 8px 24px rgba(16, 27, 59, 0.12);
    }
    /* ensure drawer and overlay start below the header */
    .mobile-drawer {
        top: 0;
        height: 100%;
    }
    .mobile-drawer-overlay {
        inset: auto 0 0 0;
        top: 0;
        bottom: 0;
        height: 100%;
    }
}

.mobile-drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 2px solid var(--gray-200);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}
.mobile-drawer-head .wordmark { 
    font-size: 1.3rem;
    color: var(--white) !important;
}
.mobile-drawer-head .wordmark i {
    color: var(--white);
}
.mobile-drawer-head .logo-sidebar {
	height: 32px;
	width: auto;
	object-fit: contain;
}
.drawer-close {
    background: rgba(255,255,255,0.2);
    border: none;
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}
.drawer-close:hover { 
    background: rgba(255,255,255,0.3);
    transform: scale(1.1);
}

.mobile-drawer-body {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    overflow-y: auto;
    flex: 1;
}
.mobile-drawer-body a {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    color: var(--gray-700);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-fast);
    margin-bottom: 0.25rem;
}
.mobile-drawer-body a:hover { 
    background: var(--primary-ultra-light);
    color: var(--primary);
}
.mobile-drawer-body a.active {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 2px 8px rgba(16, 27, 59, 0.3);
}
.mobile-drawer-body a i { 
    width: 24px;
    text-align: center;
    font-size: 1.2rem;
}
.mobile-drawer-body a.active i {
    color: var(--white);
}

.mobile-drawer-footer {
    padding: 1.25rem 1.5rem;
    border-top: 2px solid var(--gray-200);
    background: var(--gray-50);
}
.mobile-drawer-footer input {
    width: 100%;
    background: var(--white);
    border: 2px solid var(--gray-300);
    color: var(--gray-900);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}
.mobile-drawer-footer input::placeholder { color: var(--gray-500); }
.mobile-drawer-footer input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-ultra-light);
}

/* ---------- 8. HERO PROFESSIONAL ACADEMIC SEARCH ---------- */
.hero-professional {
    background: linear-gradient(135deg, rgba(251, 250, 246, 1) 0%, rgba(241, 245, 255, 0.96) 28%, rgba(203, 163, 29, 0.3) 60%, rgba(255, 255, 255, 0.98) 100%);
    border-bottom: 1px solid var(--gray-200);
    padding: 4.5rem 0 3.5rem;
    position: relative;
    overflow: hidden;
}

/* Hero Background Network Animation */
.hero-background-network {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    pointer-events: none;
    opacity: 0.62;
}

.hero-network-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

.network-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, 
        rgba(255,255,255,0.12) 0%, 
        rgba(255,255,255,0) 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease;
    position: relative;
    z-index: 2;
}

.hero-header {
    text-align: center;
    margin-bottom: 3rem;
}

.hero-main-title {
    font-size: 2.75rem;
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.hero-title-line {
    display: block;
    color: var(--gray-700);
    font-weight: 600;
    font-size: 1.1em;
}

.hero-title-highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.7;
    font-weight: 400;
}

/* Search Container */
.search-container {
    margin-bottom: 2.5rem;
}

.search-form-premium {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-normal);
}

.search-form-premium:focus-within {
    border-color: var(--primary);
    box-shadow: 0 8px 40px rgba(16, 27, 59, 0.15);
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
}

.search-input-wrapper i {
    color: var(--gray-500);
    font-size: 1.25rem;
    margin-left: 0.5rem;
    flex-shrink: 0;
}

.search-input-main {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1.05rem;
    padding: 0.85rem 0;
    color: var(--gray-900);
    font-family: var(--font-sans);
    background: transparent;
    min-width: 0;
}

.search-input-main::placeholder {
    color: var(--gray-400);
    font-weight: 500;
}
.search-input-main:focus {
    color: var(--gray-900);
    outline: none;
    border: none;
}

.search-btn-submit {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.search-btn-submit:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--accent-dark) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 27, 59, 0.35);
}

.search-btn-submit i {
    font-size: 1rem;
}

/* Search Options */
.search-options {
    display: flex;
    gap: 1.5rem;
    padding: 1rem 0.5rem 0;
    border-top: 1px solid var(--gray-200);
    margin-top: 1rem;
    flex-wrap: wrap;
}

.search-filter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
    font-size: 0.9rem;
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition-fast);
}

.search-filter input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

.search-filter span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.search-filter i {
    font-size: 0.95rem;
    color: var(--primary);
}

.search-filter:hover {
    color: var(--primary);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero-stat-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    flex-shrink: 0;
}

.hero-stat-item:first-child {
    padding-left: 0;
}

.stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: #44403a;
    color: #f1f5ff;
    border-radius: 50%;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.stat-content {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--gray-900);
    letter-spacing: -0.01em;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gray-600);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-stat-divider {
    width: 1px;
    height: 50px;
    background: #c9b05d;
    margin: 0 0.5rem;
}

@media (max-width: 768px) {
    .hero-stat-divider {
        display: none;
    }
    
    .hero-stats {
        gap: 0.5rem;
    }
    
    .hero-stat-item {
        padding: 0.75rem 1rem;
    }
}

/* Hero Shortcuts */
.hero-shortcuts {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    padding-top: 2rem;
    border-top: 1px solid #c9b05d;
}

.shortcuts-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-right: 0.5rem;
}

.shortcut-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    background: var(--primary-ultra-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.shortcut-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 27, 59, 0.25);
}

.shortcut-link i {
    font-size: 1rem;
}

/* ---------- 9. STATISTICS ---------- */
.stats-section {
    padding: 4rem 0;
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}

.stat-card {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    border-radius: var(--radius-xl);
    background: var(--white);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.stat-card-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 2rem;
    flex-shrink: 0;
    color: var(--white);
}

.stat-card-emerald { --card-color: var(--emerald); }
.stat-card-emerald .stat-card-icon {
    background: linear-gradient(135deg, var(--emerald), var(--emerald-dark));
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.stat-card-violet { --card-color: var(--violet); }
.stat-card-violet .stat-card-icon {
    background: linear-gradient(135deg, var(--violet), var(--violet-dark));
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.stat-card-amber { --card-color: var(--amber); }
.stat-card-amber .stat-card-icon {
    background: linear-gradient(135deg, var(--amber), var(--amber-dark));
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.stat-card-coral { --card-color: var(--coral); }
.stat-card-coral .stat-card-icon {
    background: linear-gradient(135deg, var(--coral), var(--coral-dark));
    box-shadow: 0 4px 15px rgba(248, 113, 113, 0.3);
}

.stat-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-card-content .stat-number {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--gray-900);
    letter-spacing: -0.02em;
}

.stat-card-content .stat-label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--gray-900);
    letter-spacing: 0.03em;
}

.stat-card-content .stat-desc {
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 500;
    margin-top: 0.25rem;
}

/* ---------- 10. SECTIONS ---------- */
.section { 
    padding: 5rem 0;
    animation: fadeIn 0.8s ease;
}

.section-featured {
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}

.section-articles {
    background: var(--white);
}

.section-alt { 
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1.5rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.section-head-premium {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.section-subtitle {
    color: var(--gray-600);
    font-size: 1.05rem;
    margin-top: 0.5rem !important;
    font-weight: 500;
}

.section-link {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.section-link:hover {
    gap: 0.75rem;
    color: var(--primary-dark);
}

.section-link-premium {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    background: var(--primary-ultra-light);
}

.section-link-premium:hover {
    gap: 0.75rem;
    color: var(--primary-dark);
    background: var(--primary-ultra-light);
    transform: translateX(3px);
}

.section-link i {
    transition: var(--transition-fast);
}

/* ---------- 11. JOURNAL CARDS ---------- */
.journal-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 2rem;
    color: var(--gray-900);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.journal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transform: translateX(-100%);
    transition: var(--transition-fast);
}

.journal-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.journal-card:hover::before {
    transform: translateX(0);
}

.journal-card-initials {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: var(--white);
    font-family: var(--font-sans);
    font-weight: 900;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.3);
}

.journal-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.journal-card p {
    color: var(--gray-600);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex: 1;
    line-height: 1.6;
}

.journal-card-meta {
    font-size: 0.875rem;
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* ---------- 11B. JOURNAL CARDS PREMIUM ---------- */
.journal-card-premium {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.journal-card-premium:nth-child(1) { animation-delay: 0.1s; }
.journal-card-premium:nth-child(2) { animation-delay: 0.15s; }
.journal-card-premium:nth-child(3) { animation-delay: 0.2s; }
.journal-card-premium:nth-child(4) { animation-delay: 0.25s; }
.journal-card-premium:nth-child(5) { animation-delay: 0.3s; }
.journal-card-premium:nth-child(6) { animation-delay: 0.35s; }

.journal-card-premium:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.journal-card-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--card-color-light) 0%, var(--card-color) 100%);
}

.journal-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.4rem 0.9rem;
    border-radius: 50px;
    margin-bottom: 1rem;
    width: fit-content;
}

.journal-badge-blue { background: var(--primary-ultra-light); color: var(--primary); }
.journal-badge-green { background: rgba(16,185,129,0.1); color: var(--emerald-dark); }
.journal-badge-purple { background: rgba(139,92,246,0.1); color: var(--violet-dark); }
.journal-badge-orange { background: rgba(245,158,11,0.1); color: var(--amber-dark); }
.journal-badge-red { background: rgba(248,113,113,0.1); color: var(--coral-dark); }
.journal-badge-teal { background: rgba(20,184,166,0.1); color: var(--teal-dark); }

.journal-card-blue { --card-color: var(--primary); --card-color-light: var(--primary-light); }
.journal-card-green { --card-color: var(--emerald); --card-color-light: var(--emerald-light); }
.journal-card-purple { --card-color: var(--violet); --card-color-light: var(--violet-light); }
.journal-card-orange { --card-color: var(--amber); --card-color-light: var(--amber-light); }
.journal-card-red { --card-color: var(--coral); --card-color-light: var(--coral-light); }
.journal-card-teal { --card-color: var(--teal); --card-color-light: var(--teal-light); }

.journal-card-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 2rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--card-color-light) 0%, rgba(255,255,255,0.5) 100%);
    color: var(--card-color);
}

.journal-card-premium h3 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.35;
}

.journal-card-premium p {
    color: var(--gray-600);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex: 1;
    line-height: 1.6;
    max-height: 8rem;
    overflow: hidden;
    -webkit-line-clamp: 5;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    white-space: normal;
    word-break: break-word;
}

.journal-card-stats {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--gray-50);
    border-radius: var(--radius-md);
}

.journal-card-stats span {
    font-size: 0.85rem;
    color: var(--gray-700);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ---------- 12. ARTICLE LIST / ROWS / CARDS ---------- */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Clean editorial list */
.article-list-home {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--gray-200);
}

.article-list-item {
    display: grid;
    grid-template-columns: 4.5rem minmax(0, 1fr) auto;
    gap: 1.5rem;
    align-items: start;
    padding: 2rem 1.25rem 2rem 0;
    border-bottom: 1px solid var(--gray-200);
    position: relative;
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
    transition: background-color var(--transition-normal), padding-left var(--transition-normal), box-shadow var(--transition-normal);
}

.article-list-item:nth-child(1) { animation-delay: 0.1s; }
.article-list-item:nth-child(2) { animation-delay: 0.15s; }
.article-list-item:nth-child(3) { animation-delay: 0.2s; }
.article-list-item:nth-child(4) { animation-delay: 0.25s; }

.article-list-item:hover {
    padding-left: 1.25rem;
    background: var(--gray-50);
    box-shadow: inset 4px 0 0 var(--accent);
}

.article-list-item-featured {
    background: linear-gradient(90deg, var(--primary-ultra-light), var(--white));
    box-shadow: inset 4px 0 0 var(--primary);
}

.article-list-index {
    padding-top: 0.3rem;
    color: var(--gray-400);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-align: center;
}

.article-list-content { min-width: 0; }

.article-list-eyebrow {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    min-height: 1.75rem;
    margin-bottom: 0.55rem;
}

.article-badge-featured {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.45rem 1rem;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
}

.article-tag-single {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.35rem 0.75rem;
    border-radius: 50px;
    background: var(--gray-100);
    color: var(--gray-700);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.article-list-title {
    font-size: 1.22rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.4;
    color: var(--gray-900);
}

.article-list-title a {
    color: inherit;
    transition: var(--transition-fast);
}

.article-list-title a:hover {
    color: var(--primary);
}

.article-list-authors {
    display: grid;
    grid-template-columns: 1rem minmax(0, 1fr);
    align-items: start;
    column-gap: 0.55rem;
    font-size: 0.84rem;
    color: var(--gray-600);
    font-weight: 500;
    line-height: 1.55;
    margin-bottom: 0.75rem;
    min-width: 0;
}

.article-list-authors > i {
    margin-top: 0rem;
    color: var(--primary);
}

.article-list-author-names {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.1rem 0.4rem;
    min-width: 0;
}

.article-list-author {
    min-width: 0;
    max-width: 100%;
    overflow-wrap: anywhere;
}

.article-list-author-separator {
    color: var(--gray-800);
    flex: 0 0 auto;
}

.separator {
    color: var(--gray-400);
    margin: 0 0.3rem;
}

.article-list-abstract {
    font-size: 0.92rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    max-height: 3.1rem;
}

.article-list-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem 1.25rem;
    font-size: 0.8rem;
    color: var(--gray-600);
    margin-bottom: 0.9rem;
}

.article-list-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.article-list-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    align-self: center;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 700;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.article-list-action i { font-size: 1rem; transition: transform var(--transition-fast); }
.article-list-action:hover { border-color: var(--primary); background: var(--primary); color: var(--white); }
.article-list-action:hover i { transform: translate(2px, -2px); }
.article-list-tags { display: flex; flex-wrap: wrap; gap: 0.45rem; }

/* ---------- 13. TAGS ---------- */
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-ultra-light);
    padding: 0.4rem 0.85rem;
    border-radius: 50px;
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.tag:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.3);
}

mark.search-highlight {
    background: var(--warning);
    color: var(--gray-900);
    padding: 0.1rem 0.3rem;
    border-radius: 4px;
    font-weight: 600;
}

/* ---------- 13B. TRENDING SECTION ---------- */
.trending-section {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--primary-ultra-light) 50%, var(--white) 100%);
}

.trending-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: flex-start;
}

.trending-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.5rem;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-900);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.trending-tag i {
    font-size: 1.2rem;
    color: var(--primary);
}

.trending-tag:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    background: var(--primary-ultra-light);
}

.trending-tag:hover i {
    transform: scale(1.15);
}

/* ---------- 14. ISSUE CARDS ---------- */
.issue-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    color: var(--gray-900);
    transition: all var(--transition-fast);
}

.issue-card:hover { 
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

/* ---------- 14B. ISSUE CARDS PREMIUM ---------- */
.section-issues {
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}

.issue-card-premium {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    color: var(--gray-900);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    position: relative;
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.issue-card-premium:nth-child(1) { animation-delay: 0.1s; }
.issue-card-premium:nth-child(2) { animation-delay: 0.15s; }
.issue-card-premium:nth-child(3) { animation-delay: 0.2s; }

.issue-card-premium:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.issue-card-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--issue-color-light) 0%, var(--issue-color) 100%);
}

.issue-card-blue { --issue-color: var(--primary); --issue-color-light: var(--primary-light); }
.issue-card-green { --issue-color: var(--emerald); --issue-color-light: var(--emerald-light); }
.issue-card-purple { --issue-color: var(--violet); --issue-color-light: var(--violet-light); }

.issue-card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.45rem 1rem;
    border-radius: 50px;
    background: var(--issue-color);
    color: var(--white);
    z-index: 10;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.issue-card-cover {
    background: linear-gradient(135deg, var(--issue-color-light) 0%, rgba(255,255,255,0.5) 100%);
    color: var(--issue-color);
    font-size: 3.5rem;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.issue-card-body { 
    padding: 1.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.issue-card-journal {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--issue-color);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.issue-card-premium h3 { 
    font-size: 1.25rem;
    margin: 0.75rem 0 1rem;
    font-weight: 700;
    color: var(--gray-900);
}

.issue-card-meta-stats {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--gray-600);
}

.issue-card-meta-stats span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.issue-card-meta-stats i {
    color: var(--issue-color);
}

.issue-card-cover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: rgba(255,255,255,0.9);
    font-size: 3rem;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.issue-card-cover::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,%3Csvg width="40" height="40" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M0 20h20v20H0z" fill="white" opacity="0.05"/%3E%3C/svg%3E');
}

.issue-card-body { 
    padding: 1.5rem;
}

.issue-card-journal {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.issue-card h3 { 
    font-size: 1.15rem;
    margin: 0.5rem 0 0.75rem;
    font-weight: 700;
}

.issue-card-meta { 
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

/* ---------- 15. BREADCRUMB ---------- */
.breadcrumb-bar {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: 0.85rem 0;
}
.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--gray-500);
    flex-wrap: wrap;
    list-style: none;
}
.breadcrumb-list a { color: var(--gray-700); }
.breadcrumb-list a:hover { color: var(--teal-600); }
.breadcrumb-list .sep { color: var(--gray-300); }
.breadcrumb-list .current { color: var(--ink-900); font-weight: 500; }

/* ---------- 16. PAGE HEADER (list pages) ---------- */
.page-header {
    background: var(--navy-950);
    color: var(--white);
    padding: 2.5rem 0 2rem;
}
.page-header h1 { color: var(--white); font-size: 1.9rem; }
.page-header p { color: rgba(255,255,255,0.75); margin-top: 0.4rem; margin-bottom: 0; }

/* ---------- 17. FILTER / TOOLBAR ---------- */
.toolbar {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 1.1rem 1.25rem;
    margin: -1.5rem 0 2rem;
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 2;
}
.toolbar-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    align-items: center;
}
.toolbar-search {
    flex: 1 1 240px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gray-50);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
}
.toolbar-search i { color: var(--gray-500); }
.toolbar-search input {
    border: none;
    background: transparent;
    outline: none;
    flex: 1;
    font-size: 0.9rem;
    min-width: 0;
}
.toolbar select,
.toolbar .form-select {
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.7rem;
    font-size: 0.88rem;
    background: var(--white);
    color: var(--ink-900);
}
.toolbar-count {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 0.75rem;
}

/* ---------- 18. PAGINATION ---------- */
.pagination-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.35rem;
    margin-top: 2.5rem;
}
.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 0.5rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--ink-700);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
}
.page-btn:hover { border-color: var(--teal-500); color: var(--teal-600); }
.page-btn.active {
    background: var(--navy-900);
    border-color: var(--navy-900);
    color: var(--white);
}
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* Bootstrap 5.3-inspired article pagination */
.pagination-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
}

.pagination-nav .page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0.375rem 0.75rem;
    margin-left: -1px;
    border: 1px solid var(--gray-300);
    background: var(--white);
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.5;
    text-decoration: none;
    transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.pagination-nav .page-link:first-child {
    margin-left: 0;
    border-top-left-radius: var(--radius-sm);
    border-bottom-left-radius: var(--radius-sm);
}

.pagination-nav .page-link:last-child {
    border-top-right-radius: var(--radius-sm);
    border-bottom-right-radius: var(--radius-sm);
}

.pagination-nav a.page-link:hover {
    z-index: 2;
    border-color: var(--primary-light);
    background: var(--primary-ultra-light);
    color: var(--primary-dark);
}

.pagination-nav .page-link.active {
    z-index: 3;
    border-color: var(--primary);
    background: var(--primary);
    color: var(--white);
}

.pagination-nav .page-link.disabled {
    color: var(--gray-500);
    pointer-events: none;
    background: var(--gray-50);
}

@media (max-width: 575px) {
    .pagination-nav {
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 0.25rem;
    }

    .pagination-nav .page-link {
        flex: 0 0 auto;
    }
}

/* ---------- 19. EMPTY STATE ---------- */
.empty-state {
    text-align: center;
    padding: 4rem 1.5rem;
    color: var(--gray-500);
}
.empty-state i {
    font-size: 2.6rem;
    color: var(--gray-300);
    margin-bottom: 1rem;
    display: inline-block;
}
.empty-state h3 { color: var(--ink-900); font-size: 1.2rem; margin-bottom: 0.4rem; }
.empty-state p { margin: 0 auto 1.25rem; }

/* ---------- 20. ARTICLE DETAIL ---------- */
.article-detail {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 2.5rem;
    align-items: start;
    padding: 2.5rem 0 4rem;
}
.article-main { min-width: 0; }
.article-detail-title {
    font-size: 1.9rem;
    margin-bottom: 1rem;
}
.article-authors-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}
.author-item {
    font-size: 0.92rem;
    color: var(--ink-700);
}
.author-item strong { color: var(--navy-900); }
.author-item .author-orcid {
    color: var(--teal-600);
    font-size: 0.82rem;
}

.detail-block { margin-bottom: 2rem; }
.detail-block h2 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--gray-200);
}
.detail-block p { max-width: 78ch; color: var(--ink-700); }

.reference-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    font-size: 0.9rem;
    color: var(--ink-700);
    counter-reset: ref;
}
.reference-list li {
    counter-increment: ref;
    padding-left: 1.6rem;
    position: relative;
}
.reference-list li::before {
    content: counter(ref) ".";
    position: absolute;
    left: 0;
    color: var(--teal-600);
    font-weight: 600;
}
.reference-list.is-collapsed li:nth-child(n+4) { display: none; }

.detail-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }

/* ---------- 21. METADATA SIDEBAR ---------- */
.metadata-panel {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    position: sticky;
    top: 90px;
}
.metadata-panel h3 {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--gray-500);
    margin-bottom: 1rem;
}
.metadata-row {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.55rem 0;
    border-bottom: 1px solid var(--gray-200);
    font-size: 0.88rem;
}
.metadata-row:last-child { border-bottom: none; }
.metadata-row dt { color: var(--gray-500); }
.metadata-row dd { margin: 0; color: var(--ink-900); font-weight: 500; text-align: right; }

.doi-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    padding: 0.55rem 0.75rem;
    margin-top: 0.75rem;
    font-size: 0.82rem;
}
.doi-box code { color: var(--navy-800); word-break: break-all; }
.doi-link { min-width: 0; overflow-wrap: anywhere; }
.doi-link:hover code { text-decoration: underline; }
.copy-doi-btn {
    background: transparent;
    border: none;
    color: var(--teal-600);
    cursor: pointer;
    font-size: 1rem;
    flex-shrink: 0;
}

.copy-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--navy-950);
    color: var(--white);
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    z-index: 100;
}
.copy-toast.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* ---------- 21. FEATURES SECTION ---------- */
.features-section {
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}

.features-head {
    text-align: center;
    margin-bottom: 3.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-head h2 {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    color: var(--gray-900);
}

.features-head p {
    font-size: 1.1rem;
    color: var(--gray-600);
    line-height: 1.7;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.15s; }
.feature-card:nth-child(3) { animation-delay: 0.2s; }
.feature-card:nth-child(4) { animation-delay: 0.25s; }
.feature-card:nth-child(5) { animation-delay: 0.3s; }
.feature-card:nth-child(6) { animation-delay: 0.35s; }

.feature-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--feature-color-light) 0%, var(--feature-color) 100%);
}

.feature-card-blue { --feature-color: var(--primary); --feature-color-light: var(--primary-light); }
.feature-card-green { --feature-color: var(--emerald); --feature-color-light: var(--emerald-light); }
.feature-card-amber { --feature-color: var(--amber); --feature-color-light: var(--amber-light); }
.feature-card-violet { --feature-color: var(--violet); --feature-color-light: var(--violet-light); }
.feature-card-coral { --feature-color: var(--coral); --feature-color-light: var(--coral-light); }
.feature-card-teal { --feature-color: var(--teal); --feature-color-light: var(--teal-light); }

.feature-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--feature-color-light) 0%, rgba(255,255,255,0.5) 100%);
    color: var(--feature-color);
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}

.feature-card h4 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    color: var(--gray-900);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin: 0;
}

/* ---------- 23. ARTICLES PAGE ---------- */
.articles-page {
    background: linear-gradient(180deg, var(--brand-cream) 0%, #f5f7fb 42%, var(--brand-cream) 100%);
}

.page-hero-article {
    position: relative;
    overflow: hidden;
    min-height: 360px;
    padding: 4.5rem 0 4rem;
    background:
        linear-gradient(90deg, rgba(255,255,255,0.2) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,0.2) 1px, transparent 1px),
        radial-gradient(circle at 85% 15%, rgba(212, 166, 55, 0.2), transparent 24%),
        linear-gradient(135deg, #eef2ff 0%, var(--brand-cream) 62%, #e8f2f0 100%);
    background-size: 42px 42px, 42px 42px, auto, auto;
    border-bottom: 1px solid rgba(16, 27, 59, 0.08);
}

.page-hero-article::after {
    position: absolute;
    right: -120px;
    bottom: -180px;
    width: 420px;
    height: 420px;
    border: 1px solid rgba(16, 27, 59, 0.1);
    border-radius: 50%;
    content: '';
    pointer-events: none;
}

.page-hero-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 3rem;
}

.page-hero-copy { max-width: 680px; }
.page-hero-copy h1 {
    margin: 1rem 0 0.85rem;
    font-family: var(--font-serif);
    font-size: clamp(2.3rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.08;
    color: var(--primary);
    letter-spacing: -0.03em;
}
.page-hero-copy p {
    color: var(--ink-700);
    font-size: 1.05rem;
    line-height: 1.75;
    margin: 0;
}

.eyebrow-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.45rem 0.8rem;
    border: 1px solid rgba(16, 27, 59, 0.12);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.65);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.page-hero-numbers {
    display: grid;
    grid-template-columns: repeat(3, minmax(100px, 1fr));
    gap: 0.75rem;
    min-width: 360px;
    padding: 0.75rem;
    border: 1px solid rgba(16, 27, 59, 0.1);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.42);
    box-shadow: 0 16px 35px rgba(16, 27, 59, 0.08);
    backdrop-filter: blur(8px);
}

.mini-stat-card {
    padding: 1rem;
    border-left: 3px solid var(--accent);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.58);
}
.mini-stat-value { display: block; color: var(--primary); font-family: var(--font-serif); font-size: 1.55rem; font-weight: 700; line-height: 1.1; }
.mini-stat-label { display: block; margin-top: 0.2rem; color: var(--gray-600); font-size: 0.75rem; line-height: 1.35; }

.articles-content { padding-top: 3rem; padding-bottom: 1rem; }
.articles-content > .row { --bs-gutter-y: 2rem; }
.article-sidebar,
.articles-sidebar,
.articles-main { min-width: 0; }
.article-sidebar,
.articles-sidebar { position: sticky; top: 92px; }

.sidebar-card {
    margin-bottom: 1rem;
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    box-shadow: 0 5px 18px rgba(16, 27, 59, 0.06);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.sidebar-card:hover { border-color: rgba(16, 27, 59, 0.18); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.sidebar-search { border-top: 3px solid var(--accent); }
.sidebar-card:last-child { margin-bottom: 0; }
.sidebar-label,
.sidebar-card-head h3 {
    display: block;
    margin: 0 0 0.75rem;
    color: var(--gray-900);
    font-size: 0.85rem;
    font-weight: 700;
}
.sidebar-card-head h3 { font-size: 0.95rem; }
.sidebar-card-head h3::after {
    display: block;
    width: 28px;
    height: 2px;
    margin-top: 0.45rem;
    background: var(--accent);
    content: '';
}
.sidebar-search-field {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background: var(--white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.sidebar-search-field:focus-within { border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(88, 106, 163, 0.12); }
.sidebar-search-field i { color: var(--primary-light); }
.sidebar-search-field input {
    width: 100%;
    min-width: 0;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--gray-900);
    font: inherit;
    font-size: 0.85rem;
}
.filter-list { display: grid; gap: 0.55rem; }
.filter-item {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    color: var(--gray-700);
    cursor: pointer;
    font-size: 0.85rem;
    line-height: 1.4;
}
.filter-item:hover { color: var(--primary); }
.filter-item input { margin-top: 0.2rem; accent-color: var(--primary); }
.filter-item.active { color: var(--primary); font-weight: 600; }
.year-pills { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.year-pill {
    padding: 0.4rem 0.7rem;
    border: 1px solid var(--gray-300);
    border-radius: 999px;
    background: var(--white);
    color: var(--gray-700);
    cursor: pointer;
    font: inherit;
    font-size: 0.8rem;
}
.year-pill.active,
.year-pill:hover { border-color: var(--primary); background: var(--primary); color: var(--white); }

.article-toolbar {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
}
.toolbar-kicker { margin: 0 0 0.2rem; color: var(--gray-600); font-size: 0.78rem; font-weight: 600; }
.article-toolbar h2 { font-family: var(--font-serif); font-size: 1.9rem; }
.view-switch { display: flex; flex-wrap: wrap; gap: 0.25rem; padding: 0.25rem; border: 1px solid var(--gray-200); border-radius: var(--radius-sm); background: var(--white); }
.switch-btn { border: 0; border-radius: 4px; padding: 0.45rem 0.65rem; background: transparent; color: var(--gray-600); cursor: pointer; font: inherit; font-size: 0.78rem; font-weight: 600; }
.switch-btn.active, .switch-btn:hover { background: var(--primary-ultra-light); color: var(--primary); }

.featured-article-card {
    margin-bottom: 1.5rem;
    overflow: hidden;
    border: 1px solid rgba(16, 27, 59, 0.14);
    border-radius: var(--radius-md);
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}
.featured-article-intro { display: flex; flex-wrap: wrap; gap: 0.65rem; align-items: center; padding: 1rem 1.4rem; border-bottom: 1px solid rgba(255,255,255,0.12); }
.featured-article-body { display: grid; grid-template-columns: minmax(0, 1fr) 125px; gap: 1.5rem; padding: 1.5rem; }
.featured-article-copy h3 { margin-bottom: 0.75rem; font-family: var(--font-serif); font-size: 1.7rem; line-height: 1.25; }
.featured-article-copy h3 a { color: var(--white); }
.featured-article-copy h3 a:hover { color: var(--accent); }
.featured-article-summary { color: rgba(255,255,255,0.75); font-size: 0.92rem; line-height: 1.7; }
.featured-article-card .article-card-authors { color: rgba(255,255,255,0.78); }
.feature-meta-row { display: flex; flex-wrap: wrap; gap: 0.6rem 1rem; margin-bottom: 1rem; color: rgba(255,255,255,0.67); font-size: 0.75rem; }
.feature-meta-row span { display: inline-flex; gap: 0.35rem; align-items: center; }
.featured-article-side { display: flex; flex-direction: column; gap: 0.65rem; }
.metric-box { padding: 0.7rem; border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius-sm); background: rgba(255,255,255,0.08); }
.metric-label { display: block; color: rgba(255,255,255,0.65); font-size: 0.7rem; }
.metric-box strong { display: block; font-size: 1.25rem; }
.metric-box.soft { background: rgba(212,166,55,0.16); }
.read-more-btn { margin-top: auto; padding-inline: 0.75rem; background: var(--accent); border-color: var(--accent); color: var(--primary); }
.read-more-btn:hover { background: #e7bd50; border-color: #e7bd50; color: var(--primary); }
.article-card-tags { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tag-badge { display: inline-flex; padding: 0.3rem 0.6rem; border-radius: 999px; background: var(--gray-100); color: var(--gray-700); font-size: 0.72rem; font-weight: 600; }
.featured-article-card .tag-badge { background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.86); }

@media (max-width: 767px) {
    .article-list-item,
    .article-list-item:hover {
        grid-template-columns: 2.25rem minmax(0, 1fr);
        gap: 0.9rem;
        padding: 1.5rem 0.75rem 1.5rem 0;
    }

    .article-list-index { font-size: 1rem; }
    .article-list-title { font-size: 1.05rem; }
    .article-list-action {
        grid-column: 2;
        justify-self: start;
        padding: 0.5rem 0.7rem;
    }
}

@media (max-width: 991px) {
    .page-hero-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: 2rem;
    }

    .page-hero-numbers {
        width: 100%;
        min-width: 0;
    }

    .article-sidebar,
    .articles-sidebar { position: static; }
}

@media (max-width: 767px) {
    .page-hero-article { padding: 3rem 0; }
    .page-hero-copy h1 { font-size: 2.35rem; }
    .page-hero-numbers { grid-template-columns: 1fr; }
    .articles-content { padding-top: 2rem; }
    .article-toolbar { align-items: flex-start; flex-direction: column; }
    .featured-article-body { grid-template-columns: 1fr; padding: 1.2rem; }
    .featured-article-copy h3 { font-size: 1.45rem; }
    .featured-article-side { display: grid; grid-template-columns: repeat(2, 1fr); }
    .read-more-btn { grid-column: 1 / -1; }
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.article-result-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 1.8rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.article-result-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(16, 27, 59, 0.15);
}

.article-result-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.2rem;
    flex-wrap: wrap;
}

.article-result-type {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    background: rgba(16, 27, 59, 0.07);
    color: var(--primary);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    white-space: nowrap;
}

.article-result-open {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--emerald-dark);
    font-size: 0.77rem;
    font-weight: 700;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 999px;
    padding: 0.45rem 0.85rem;
    white-space: nowrap;
}

.article-result-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--gray-900);
    margin: 0 0 0.8rem 0;
    letter-spacing: -0.02em;
}

.article-result-card h3 a {
    color: inherit;
}

.article-result-card h3 a:hover {
    color: var(--primary);
}

.article-result-card .article-card-authors {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    margin: 0 0 0.9rem 0;
    line-height: 1.5;
}

.article-result-card .article-card-authors i {
    color: var(--primary);
    font-size: 0.95rem;
}

.article-result-summary {
    flex: 1;
    font-size: 0.98rem;
    line-height: 1.75;
    color: var(--gray-700);
    margin-bottom: 1.2rem;
}

.article-result-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.4rem;
    color: var(--gray-600);
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
}

.article-result-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.article-result-meta i {
    color: var(--primary);
    font-size: 0.9rem;
}

.article-result-card h3 mark.search-highlight{
    background: #ffc10782;
    color: var(--gray-900);
    padding: 0;
    border-radius: 4px;
    font-weight: 700;
    font-size: 1.35rem;
}
.article-result-card .article-result-summary mark.search-highlight{
    background: #ffc10782;
    color: var(--gray-900);
    padding: 0.1rem 0;
    border-radius: 4px;
    font-weight: 400;
    font-size: 0.98rem;
}
.article-result-card .article-card-tags .search-highlight{
    background: #ffc10782;
    color: var(--gray-700);
    padding: 0px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.72rem;
}
.article-result-card .article-card-authors .search-highlight{
    background: #ffc10782;
    color: var(--gray-700);
    padding: 0;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
}
/* ---------- 24. SCROLL TO TOP ---------- */
.scroll-to-top {
    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    z-index: 990;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid rgba(255,255,255,0.22);
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 8px 22px rgba(16,27,59,0.22);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: var(--primary-dark);
    box-shadow: 0 10px 26px rgba(16,27,59,0.3);
    transform: translateY(-3px);
}

.scroll-to-top:active { transform: translateY(-1px); }
.scroll-to-top i { font-size: 1.1rem; line-height: 1; }

@media (max-width: 767px) {
    .scroll-to-top {
        right: 1rem;
        bottom: 1rem;
        width: 40px;
        height: 40px;
    }
}

/* ---------- 25. JOURNAL ISSUES ---------- */
.issues-page {
    background: linear-gradient(180deg, var(--brand-cream) 0%, #f4f7fb 48%, var(--brand-cream) 100%);
}

.issues-hero {
    position: relative;
    overflow: hidden;
    padding: 5rem 0 4.5rem;
    background:
        linear-gradient(90deg, rgba(255,255,255,0.2) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,0.2) 1px, transparent 1px),
        radial-gradient(circle at 80% 18%, rgba(212,166,55,0.22), transparent 22%),
        linear-gradient(135deg, #eef3ff 0%, var(--brand-cream) 60%, #eaf6f0 100%);
    background-size: 42px 42px, 42px 42px, auto, auto;
    border-bottom: 1px solid rgba(16,27,59,0.08);
}

.issues-hero::after {
    position: absolute;
    right: -120px;
    bottom: -180px;
    width: 420px;
    height: 420px;
    border: 1px solid rgba(16,27,59,0.1);
    border-radius: 50%;
    content: '';
    pointer-events: none;
}

.issues-hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: center;
    gap: 3.5rem;
}

.issues-hero-copy { max-width: 720px; }
.issues-hero-copy h1 {
    max-width: 620px;
    margin: 1rem 0 1rem;
    color: var(--primary);
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4.2rem);
    line-height: 1.06;
    letter-spacing: -0.04em;
}
.issues-hero-copy p {
    max-width: 620px;
    margin-bottom: 0.35rem;
    color: var(--ink-700);
    font-size: 1.08rem;
    line-height: 1.75;
}
.issues-description.is-collapsed {
    display: -webkit-box;
    overflow: hidden;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}
.description-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0 0 1.5rem;
    padding: 0.15rem 0;
    border: 0;
    background: transparent;
    color: var(--primary);
    cursor: pointer;
    font: inherit;
    font-size: 0.88rem;
    font-weight: 700;
}
.description-toggle:hover { color: var(--emerald-dark); }
.description-toggle:focus-visible {
    border-radius: 3px;
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}
.description-toggle[hidden] { display: none; }
.description-toggle i { font-size: 0.72rem; }
.issues-hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; }

.issues-hero-index {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 1.5rem;
    border: 1px solid rgba(16,27,59,0.12);
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.56);
    box-shadow: 0 18px 36px rgba(16,27,59,0.08);
    backdrop-filter: blur(8px);
}

.issues-list-section { padding: 4.5rem 0 5rem; }
.issues-list-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.issues-list-header h2 {
    margin-bottom: 0.35rem;
    color: var(--primary);
    font-family: var(--font-serif);
    font-size: 2.3rem;
}
.issues-list-caption {
    margin: 0;
    color: var(--gray-600);
    font-size: 0.94rem;
}
.issues-count {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.7rem 0.95rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--white);
    color: var(--gray-700);
    font-size: 0.88rem;
    font-weight: 700;
    white-space: nowrap;
}
.issues-count i { color: var(--emerald-dark); }
.issues-sort { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.sort-chip {
    padding: 0.48rem 0.8rem;
    border: 1px solid var(--gray-300);
    border-radius: 999px;
    background: var(--white);
    color: var(--gray-700);
    cursor: pointer;
    font: inherit;
    font-size: 0.78rem;
    font-weight: 600;
}
.sort-chip.active, .sort-chip:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.issues-grid { margin-top: 0; }
.issue-card {
    --issue-color: var(--primary);
    --issue-soft: var(--primary-ultra-light);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.96);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}
.issue-card:hover {
    transform: translateY(-6px);
    border-color: rgba(16,27,59,0.15);
    box-shadow: var(--shadow-lg);
}
.issue-blue { --issue-color: var(--primary); --issue-soft: var(--primary-ultra-light); }
.issue-green { --issue-color: var(--emerald-dark); --issue-soft: var(--emerald-light); }
.issue-violet { --issue-color: var(--violet-dark); --issue-soft: var(--violet-light); }
.issue-orange { --issue-color: var(--amber-dark); --issue-soft: var(--amber-light); }
.issue-amber { --issue-color: var(--amber-dark); --issue-soft: var(--amber-light); }
.issue-teal { --issue-color: var(--teal-dark); --issue-soft: var(--teal-light); }

.issue-cover {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 150px;
    background:
        radial-gradient(circle at 82% 22%, rgba(255,255,255,0.68) 0 34px, transparent 35px),
        linear-gradient(135deg, var(--issue-soft), rgba(255,255,255,0.78));
    color: var(--issue-color);
    font-size: 2.25rem;
    font-weight: 800;
}
.issue-cover::after {
    position: absolute;
    right: -28px;
    bottom: -70px;
    width: 180px;
    height: 110px;
    border: 1px solid color-mix(in srgb, var(--issue-color) 18%, transparent);
    border-radius: 50%;
    content: '';
    transform: rotate(-22deg);
    pointer-events: none;
}
.issue-cover span {
    position: relative;
    z-index: 1;
}
.issue-body { display: flex; flex-direction: column; flex: 1; padding: 1.5rem; }
.issue-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}
.issue-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.38rem 0.7rem;
    border-radius: 999px;
    background: var(--issue-soft);
    color: var(--issue-color);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.issue-year { color: var(--gray-600); font-size: 0.72rem; font-weight: 700; }
.issue-card h3 {
    margin-bottom: 0.4rem;
    color: var(--gray-900);
    font-family: var(--font-serif);
    font-size: 1.55rem;
    line-height: 1.2;
}
.issue-card p {
    margin: 0 0 1rem;
    color: var(--gray-600);
    font-size: 0.9rem;
}
.issue-card ul {
    padding-left: 1rem;
    margin: 0 0 1.1rem;
    color: var(--gray-700);
    line-height: 1.8;
    font-size: 0.82rem;
}
.issue-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: auto;
    color: var(--issue-color);
    font-weight: 700;
    font-size: 0.82rem;
}
.issue-link i { transition: transform var(--transition-fast); }
.issue-link:hover i { transform: translateX(4px); }

@media (max-width: 991px) {
    .issues-hero-inner { grid-template-columns: 1fr; gap: 2rem; }
    .issues-hero-index { width: min(100%, 360px); }

    .issues-list-header {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 767px) {
    .issues-hero { padding: 3.5rem 0; }
    .issues-hero-copy h1 { font-size: 2.5rem; }
    .issues-hero-actions .btn { width: 100%; }
    .issue-card { min-height: 0; }
    .issues-list-section { padding: 3.25rem 0 4rem; }
    .issues-list-header { align-items: flex-start; }
    .issues-count { align-self: flex-start; }
}

/* ---------- 26. JOURNALS CATALOG ---------- */
.journals-page {
    background: linear-gradient(180deg, var(--brand-cream) 0%, #f4f6fa 48%, var(--brand-cream) 100%);
}

.journals-hero {
    position: relative;
    overflow: hidden;
    padding: 5rem 0 4.5rem;
    background:
        linear-gradient(90deg, rgba(255,255,255,0.2) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,0.2) 1px, transparent 1px),
        radial-gradient(circle at 84% 16%, rgba(212,166,55,0.24), transparent 24%),
        linear-gradient(135deg, #e9eefc 0%, var(--brand-cream) 64%, #e8f3ef 100%);
    background-size: 44px 44px, 44px 44px, auto, auto;
    border-bottom: 1px solid rgba(16,27,59,0.08);
}

.journals-hero::after {
    position: absolute;
    right: -130px;
    bottom: -220px;
    width: 500px;
    height: 500px;
    border: 1px solid rgba(16,27,59,0.1);
    border-radius: 50%;
    content: '';
    pointer-events: none;
}

.journals-hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: end;
    gap: 4rem;
}

.journals-hero-copy { max-width: 720px; }
.journals-hero-copy h1 {
    max-width: 680px;
    margin: 1rem 0 1rem;
    color: var(--primary);
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.04;
    letter-spacing: -0.04em;
}
.journals-hero-copy p {
    max-width: 610px;
    margin-bottom: 1.5rem;
    color: var(--ink-700);
    font-size: 1.08rem;
    line-height: 1.75;
}
.journals-hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; }
.journals-hero-actions .btn-outline-primary { background: rgba(255,255,255,0.42); }

.journals-hero-index {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 1.5rem;
    border: 1px solid rgba(16,27,59,0.12);
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.56);
    box-shadow: 0 18px 36px rgba(16,27,59,0.08);
    color: var(--gray-700);
    backdrop-filter: blur(8px);
}
.index-label { color: var(--gray-600); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.journals-hero-index strong { color: var(--primary); font-family: var(--font-serif); font-size: 4rem; line-height: 0.95; }
.journals-hero-index span { font-size: 0.82rem; }
.journals-hero-index b { color: var(--primary); font-weight: 700; }
.index-rule { width: 100%; height: 1px; margin: 0.7rem 0 0.3rem; background: rgba(16,27,59,0.15); }

.journal-toolbar-section { padding: 4.5rem 0 5rem; }
.journal-toolbar {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 1.5rem;
}
.section-kicker { display: block; margin-bottom: 0.35rem; color: var(--accent-dark); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.11em; text-transform: uppercase; }
.journal-toolbar h2 { color: var(--primary); font-family: var(--font-serif); font-size: 2.3rem; }
.journal-search {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: min(100%, 300px);
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background: var(--white);
}
.journal-search:focus-within { border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(88,106,163,0.12); }
.journal-search i { color: var(--primary-light); }
.journal-search input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--gray-900); font: inherit; font-size: 0.85rem; }
.journal-filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }
.journal-filter { padding: 0.5rem 0.85rem; border: 1px solid var(--gray-300); border-radius: 999px; background: var(--white); color: var(--gray-700); cursor: pointer; font: inherit; font-size: 0.8rem; font-weight: 600; transition: var(--transition-fast); }
.journal-filter:hover, .journal-filter.active { border-color: var(--primary); background: var(--primary); color: var(--white); }

.journal-catalog-card {
    --catalog-color: var(--primary);
    --catalog-soft: var(--primary-ultra-light);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 390px;
    padding: 1.6rem;
    overflow: hidden;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.94);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}
.journal-catalog-card::before { position: absolute; inset: 0 0 auto; height: 4px; background: var(--catalog-color); content: ''; }
.journal-catalog-card:hover { border-color: var(--catalog-color); box-shadow: var(--shadow-lg); transform: translateY(-6px); }
.journal-catalog-blue { --catalog-color: var(--primary); --catalog-soft: var(--primary-ultra-light); }
.journal-catalog-green { --catalog-color: var(--emerald-dark); --catalog-soft: var(--emerald-light); }
.journal-catalog-violet { --catalog-color: var(--violet-dark); --catalog-soft: var(--violet-light); }
.journal-catalog-amber { --catalog-color: var(--amber-dark); --catalog-soft: var(--amber-light); }
.journal-catalog-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.5rem; }
.journal-initials { color: var(--catalog-color); font-size: 0.75rem; font-weight: 800; letter-spacing: 0.12em; }
.journal-status { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.35rem 0.6rem; border-radius: 999px; background: var(--catalog-soft); color: var(--catalog-color); font-size: 0.68rem; font-weight: 700; }
.journal-catalog-icon { display: flex; align-items: center; justify-content: center; width: 62px; height: 62px; margin-bottom: 1.1rem; border-radius: 50%; background: var(--catalog-soft); color: var(--catalog-color); font-size: 1.8rem; }
.journal-code { margin: 0 0 0.45rem; color: var(--gray-600); font-size: 0.875rem; font-weight: 600; letter-spacing: 0; }
.journal-catalog-card h3 { max-width: 450px; margin-bottom: 0.7rem; color: var(--gray-900); font-family: var(--font-serif); font-size: 1.55rem; line-height: 1.2; }
.journal-summary { flex: 1; margin-bottom: 1.35rem; color: var(--gray-600); font-size: 0.91rem; line-height: 1.7; }
.journal-catalog-meta { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; padding: 0.9rem 0; border-top: 1px solid var(--gray-200); border-bottom: 1px solid var(--gray-200); color: var(--gray-600); font-size: 0.75rem; }
.journal-catalog-meta span { display: inline-flex; align-items: center; gap: 0.35rem; }
.journal-catalog-meta i { color: var(--catalog-color); }
.journal-catalog-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 0.5rem; margin-top: 1.15rem; color: var(--catalog-color); font-size: 0.85rem; font-weight: 700; }
.journal-catalog-link i { transition: transform var(--transition-fast); }
.journal-catalog-link:hover { color: var(--catalog-color); }
.journal-catalog-link:hover i { transform: translateX(4px); }

.journals-cta-section { padding: 0 0 4.5rem; }
.journals-cta { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 2.4rem 2.7rem; border-radius: var(--radius-md); background: linear-gradient(115deg, var(--primary) 0%, var(--primary-dark) 70%, #30447d 100%); color: var(--white); box-shadow: var(--shadow-lg); }
.journals-cta h2 { margin-bottom: 0.45rem; color: var(--white); font-family: var(--font-serif); font-size: 2rem; }
.journals-cta p { margin: 0; color: rgba(255,255,255,0.72); font-size: 0.92rem; }
.journals-cta .section-kicker { color: var(--accent); }
.journals-cta .btn-light { flex-shrink: 0; color: var(--primary); }

@media (max-width: 991px) {
    .journals-hero-inner { grid-template-columns: 1fr; gap: 2rem; }
    .journals-hero-index { width: min(100%, 360px); }
}

@media (max-width: 767px) {
    .journals-hero { padding: 3.5rem 0; }
    .journals-hero-copy h1 { font-size: 2.55rem; }
    .journals-hero-actions .btn { width: 100%; }
    .journal-toolbar { align-items: flex-start; flex-direction: column; gap: 1rem; }
    .journal-search { width: 100%; }
    .journal-catalog-card { min-height: 0; }
    .journals-cta { align-items: flex-start; flex-direction: column; padding: 1.7rem; }
    .journals-cta .btn-light { width: 100%; }
}

@media (max-width: 768px) {
    .article-result-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .article-result-card {
        padding: 1.4rem 1.2rem;
    }

    .article-result-card h3 {
        font-size: 1.1rem;
    }

    .article-list {
        gap: 1.25rem;
    }
}

/* ---------- 27. DETAIL ARTICLE ---------- */
.article-detail-page {
    background: linear-gradient(180deg, var(--brand-cream) 0%, #f5f7fb 38%, var(--brand-cream) 100%);
}

.article-detail-hero {
    position: relative;
    overflow: hidden;
    padding: 4rem 0 3rem;
    background:
        linear-gradient(90deg, rgba(255,255,255,0.2) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,0.2) 1px, transparent 1px),
        radial-gradient(circle at 80% 18%, rgba(212,166,55,0.2), transparent 22%),
        linear-gradient(135deg, #eef2ff 0%, var(--brand-cream) 62%, #edf8f4 100%);
    background-size: 42px 42px, 42px 42px, auto, auto;
    border-bottom: 1px solid rgba(16,27,59,0.08);
}

.article-detail-hero::after {
    position: absolute;
    right: -130px;
    bottom: -180px;
    width: 430px;
    height: 430px;
    border: 1px solid rgba(16,27,59,0.1);
    border-radius: 50%;
    content: '';
    pointer-events: none;
}

.article-detail-top {
    position: relative;
    z-index: 1;
}

.article-breadcrumb {
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-600);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.article-breadcrumb a { color: var(--primary); }
.article-breadcrumb .separator { color: var(--gray-400); }

.article-detail-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
    margin-top: 1.2rem;
}
.article-detail-head h1 {
    margin: 0;
    max-width: 100%;
    color: var(--primary);
    font-family: var(--font-serif);
    font-size: clamp(2.4rem, 5vw, 4.1rem);
    line-height: 1.06;
    letter-spacing: -0.04em;
}
.article-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    justify-content: flex-end;
}

.article-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.3rem;
    margin-top: 1.2rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(16,27,59,0.1);
    color: var(--gray-700);
    font-size: 0.84rem;
    font-weight: 600;
}
.article-detail-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}
.article-detail-meta i { color: var(--primary); }

.article-detail-shell {
    padding-top: 2.8rem;
    padding-bottom: 5rem;
}

.article-detail-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.65fr) minmax(260px, 0.75fr);
    gap: 2rem;
    align-items: start;
}

.article-detail-main {
    min-width: 0;
}

.article-detail-card,
.detail-side-card {
    background: rgba(255,255,255,0.96);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.article-detail-card {
    padding: 2rem;
}

.article-detail-card h2 {
    margin: 0 0 1rem;
    color: var(--gray-900);
    font-family: var(--font-serif);
    font-size: 1.9rem;
}
.article-detail-card p {
    margin-bottom: 1.15rem;
    color: var(--gray-700);
    font-size: 1rem;
    line-height: 1.9;
}

.article-lead {
    margin-bottom: 1.5rem;
    padding: 1.25rem 1.3rem;
    border-left: 3px solid var(--accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    background: rgba(212,166,55,0.08);
    color: var(--gray-800);
    font-size: 1.05rem;
    line-height: 1.8;
}

.article-detail-card .author-list {
    list-style: none;
    counter-reset: article-author;
    margin: 1rem 0 1.5rem;
    padding: 0;
    border-top: 1px solid var(--gray-200);
}
.article-detail-card .author-item {
    counter-increment: article-author;
    display: grid;
    grid-template-columns: 2.25rem minmax(0, 1fr);
    align-items: start;
    gap: 0.85rem;
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--gray-200);
}
.article-detail-card .author-item::before {
    content: counter(article-author, decimal-leading-zero);
    display: grid;
    width: 2.1rem;
    aspect-ratio: 1;
    place-items: center;
    border-radius: 6px;
    background: rgba(212,166,55,0.12);
    color: var(--accent);
    font-size: 0.76rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}
.article-detail-card .author-item-empty::before {
    content: "?";
}
.article-detail-card .author-content {
    min-width: 0;
}
.article-detail-card .author-name {
    margin: 0;
    color: var(--gray-900);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.45;
    overflow-wrap: anywhere;
}
.article-detail-card .author-affiliation {
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
    margin: 0.25rem 0 0;
    color: var(--gray-600);
    font-size: 0.88rem;
    line-height: 1.55;
    overflow-wrap: anywhere;
}
.article-detail-card .author-affiliation i {
    flex: 0 0 auto;
    margin-top: 0.15rem;
    color: var(--accent);
}

.article-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}
.article-keyword {
    display: inline-flex;
    align-items: center;
    padding: 0.38rem 0.65rem;
    border-radius: 999px;
    background: var(--primary-ultra-light);
    color: var(--primary);
    font-size: 0.72rem;
    font-weight: 700;
}

.article-content-block {
    margin-top: 2rem;
}
.article-content-block h3 {
    margin: 0 0 0.9rem;
    color: var(--primary);
    font-family: var(--font-serif);
    font-size: 1.55rem;
}

.reference-list {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--gray-700);
    font-size: 0.93rem;
    line-height: 1.8;
}
.reference-list li + li { margin-top: 0.4rem; }

.detail-side {
    min-width: 0;
    align-self: start;
    height: fit-content;
    position: sticky;
    top: calc(var(--header-height) + 1rem);
}
.detail-side-card {
    padding: 1.5rem;
}
.detail-side-card + .detail-side-card { margin-top: 1rem; }

.sidebar-article-actions {
    display: grid;
    gap: 0.65rem;
    margin-top: 1.2rem;
}
.sidebar-article-actions .btn {
    width: 100%;
}

.side-card-title {
    margin: 0 0 1rem;
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.metadata-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}
.metadata-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.8rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--gray-200);
}
.metadata-row:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}
.metadata-row dt {
    margin: 0;
    color: var(--gray-500);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.metadata-row dd {
    margin: 0;
    color: var(--gray-900);
    font-size: 0.86rem;
    font-weight: 700;
    text-align: right;
}

.doi-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    margin-top: 1rem;
    padding: 0.7rem 0.8rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background: rgba(16,27,59,0.02);
}
.doi-box code {
    overflow-wrap: anywhere;
    color: var(--primary);
    font-size: 0.76rem;
    font-weight: 700;
}
.copy-doi-btn {
    border: 0;
    background: transparent;
    color: var(--primary);
    font-size: 1rem;
    cursor: pointer;
}

.citation-modal .modal-content {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: 0 1.5rem 4rem rgba(16,27,59,0.2);
}
.citation-modal .modal-header {
    padding: 1.5rem 1.6rem 1.2rem;
    border-bottom: 1px solid var(--gray-200);
}
.citation-modal .modal-title {
    margin: 0.2rem 0 0;
    color: var(--primary);
    font-family: var(--font-serif);
    font-size: 1.7rem;
}
.citation-modal-kicker {
    color: var(--accent-dark);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.citation-tabs { border-bottom-color: var(--gray-200); }
.citation-tabs .nav-link {
    border: 0;
    border-bottom: 2px solid transparent;
    color: var(--gray-600);
    font-size: 0.82rem;
    font-weight: 700;
}
.citation-tabs .nav-link.active {
    border-bottom-color: var(--accent);
    color: var(--primary);
    background: transparent;
}
.citation-tab-content { padding-top: 1.4rem; }
.citation-text {
    min-height: 7rem;
    margin-bottom: 1.2rem;
    padding: 1rem 1.1rem;
    border-left: 3px solid var(--accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: var(--gray-50);
    color: var(--gray-800);
    font-size: 0.96rem;
    line-height: 1.8;
}
.citation-modal .modal-footer { border-top-color: var(--gray-200); }

.related-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}
.related-item {
    display: block;
    padding: 0.75rem 0.8rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--gray-50);
    color: var(--gray-800);
    font-size: 0.86rem;
    line-height: 1.5;
}
.related-item:hover { border-color: rgba(16,27,59,0.2); background: var(--white); color: var(--primary); }

.article-callout {
    margin-top: 1.2rem;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(16,27,59,0.08);
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(88,106,163,0.03), rgba(212,166,55,0.06));
    color: var(--gray-700);
    font-size: 0.93rem;
    line-height: 1.7;
}

@media (max-width: 991px) {
    .article-detail-layout { grid-template-columns: 1fr; }
    .article-detail-head { align-items: flex-start; flex-direction: column; }
    .article-detail-actions { justify-content: flex-start; }
    .detail-side { position: static; }
}

@media (max-width: 767px) {
    .article-detail-hero { padding: 3rem 0 2.5rem; }
    .article-detail-card { padding: 1.3rem; }
    .article-detail-card h2 { font-size: 1.6rem; }
    .article-detail-actions .btn { width: 100%; }
    .article-detail-meta { gap: 0.6rem 1rem; }
    .detail-side-card { padding: 1.2rem; }
}

.site-footer {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0c152f 0%, #111d3b 38%, #192a4d 100%);
    color: rgba(255,255,255,0.82);
    padding-top: 4rem;
    margin-top: 5rem;
}

.site-footer::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top left, rgba(212, 166, 55, 0.18), transparent 22%),
        radial-gradient(circle at bottom right, rgba(88, 106, 163, 0.24), transparent 30%);
    pointer-events: none;
}

.site-footer .container {
    position: relative;
    z-index: 1;
}

/* ---------- 28. STATIC PAGE ---------- */
.static-page-body ul {
    padding-left: 1.2rem;
    margin: 0 0 1.2rem;
    color: var(--gray-700);
    line-height: 1.8;
}

/* ---------- 29. FOOTER ---------- */
.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.1fr;
    gap: 2rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.12);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-brand .wordmark {
    color: var(--white) !important;
    font-size: 1.7rem;
    margin-bottom: 0.25rem;
}

.footer-brand .wordmark i {
    color: var(--accent);
}

.footer-logo {
    width: 250px;
    height: auto;
    margin-bottom: 0.5rem;
    filter: drop-shadow(0 10px 28px rgba(212, 166, 55, 0.2));
}

.footer-brand p {
    max-width: 420px;
    font-size: 0.95rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.72);
    margin: 0;
}

.footer-links,
.footer-cta {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.footer-col h4,
.footer-cta h4 {
    margin: 0 0 0.8rem;
    color: var(--white);
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 700;
}

.footer-links > h4{
    color: #fff;
}
.footer-links a,
.footer-cta a {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    color: rgba(255,255,255,0.74);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    width: fit-content;
}

.footer-links a:hover,
.footer-cta a:hover {
    color: var(--white);
    transform: translateX(4px);
}

.footer-links a i,
.footer-cta a i {
    color: var(--accent);
    font-size: 0.9rem;
}

.footer-newsletter {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 1rem;
    backdrop-filter: blur(6px);
}

.footer-newsletter p {
    margin: 0 0 1rem;
    color: rgba(255,255,255,0.72);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-newsletter-form {
    display: flex;
    gap: 0.6rem;
    align-items: center;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 999px;
    padding: 0.35rem 0.45rem 0.35rem 0.8rem;
}

.footer-newsletter-form input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 0.9rem;
    outline: none;
}

.footer-newsletter-form input::placeholder {
    color: rgba(255,255,255,0.44);
}

.footer-newsletter-form button {
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent) 0%, #e1b94a 100%);
    color: var(--primary);
    font-weight: 700;
    padding: 0.7rem 1rem;
    min-width: 92px;
}

.footer-socials {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.6rem;
}

.social-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--white);
    font-size: 1rem;
}

.social-btn:hover {
    background: rgba(212, 166, 55, 0.18);
    border-color: rgba(212, 166, 55, 0.35);
    color: var(--white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.4rem 0 2rem;
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
}

.footer-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-meta span::before {
    content: "•";
    margin-right: 0.75rem;
    color: rgba(255,255,255,0.35);
}

.footer-meta span:first-child::before {
    content: none;
}

.footer-license {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.footer-license i {
    flex: 0 0 auto;
    margin-top: 0.1rem;
    color: var(--accent);
    font-size: 1.1rem;
}

.footer-license a {
    color: rgba(255,255,255,0.88);
    text-decoration-color: rgba(212,166,55,0.65);
    text-underline-offset: 0.2em;
    transition: color var(--transition-fast);
}

.footer-license a:hover {
    color: var(--white);
}

@media (max-width: 992px) {
    .footer-top {
        grid-template-columns: 1.2fr 1fr 1fr;
    }

    .footer-newsletter {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .footer-top {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-license {
        text-align: center;
        padding: 1rem;
        display: block;
    }
}