@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400;1,600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --primary-rgb: 79, 70, 229;
    
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;

    --card-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
    --card-shadow-hover: 0 12px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 8px -2px rgba(15, 23, 42, 0.04);
}

body {
    font-family: var(--font-sans);
    background-color: var(--slate-50);
    color: var(--slate-800);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Custom Navigation Bar */
.portal-navbar {
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.15);
    padding: 0.85rem 0;
}

.portal-brand {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
    color: #ffffff !important;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}

.portal-brand i {
    font-size: 1.4rem;
    color: #818cf8;
}

/* Cards & Containers */
.card-modern {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: 1rem;
    box-shadow: var(--card-shadow);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.card-hover:hover {
    transform: translateY(-3px);
    box-shadow: var(--card-shadow-hover);
    border-color: #c7d2fe;
}

/* Department Header Banner */
.dept-banner {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid var(--slate-200);
    border-radius: 1rem;
    padding: 1.75rem 2rem;
    box-shadow: var(--card-shadow);
}

/* Custom Badges */
.badge-subtle-primary {
    background-color: #eef2ff;
    color: #4338ca;
    border: 1px solid #c7d2fe;
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.35rem 0.65rem;
    border-radius: 9999px;
}

.badge-subtle-dept {
    background-color: #f0fdf4;
    color: #15803d;
    border: 1px solid #bbf7d0;
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.35rem 0.65rem;
    border-radius: 9999px;
}

.badge-subtle-admin {
    background-color: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.35rem 0.65rem;
    border-radius: 9999px;
}

.badge-subtle-secondary {
    background-color: var(--slate-100);
    color: var(--slate-600);
    border: 1px solid var(--slate-200);
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.35rem 0.65rem;
    border-radius: 9999px;
}

/* Action Buttons */
.btn-primary-modern {
    background-color: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
    font-weight: 600;
    border-radius: 0.625rem;
    padding: 0.5rem 1.15rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.btn-primary-modern:hover,
.btn-primary-modern:focus {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
    transform: translateY(-1px);
}

.btn-secondary-modern {
    background-color: #ffffff;
    border: 1px solid var(--slate-300);
    color: var(--slate-700);
    font-weight: 600;
    border-radius: 0.625rem;
    padding: 0.5rem 1.15rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.btn-secondary-modern:hover {
    background-color: var(--slate-50);
    border-color: var(--slate-400);
    color: var(--slate-900);
}

/* Form Controls */
.form-control, .form-select {
    border: 1px solid var(--slate-300);
    border-radius: 0.625rem;
    padding: 0.625rem 0.875rem;
    font-size: 0.95rem;
    color: var(--slate-800);
    background-color: #ffffff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    outline: none;
}

.form-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--slate-700);
    margin-bottom: 0.4rem;
}

/* Custom Table */
.table-modern {
    margin-bottom: 0;
}

.table-modern th {
    background-color: var(--slate-50);
    color: var(--slate-500);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--slate-200);
}

.table-modern td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--slate-100);
    color: var(--slate-700);
}

.table-modern tbody tr {
    transition: background-color 0.15s ease;
}

.table-modern tbody tr:hover {
    background-color: #f8fafc;
}

/* Admin Subnavigation Bar */
.admin-subnav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem;
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
}

.admin-nav-item {
    color: var(--slate-600);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.5rem 0.9rem;
    border-radius: 0.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    transition: all 0.15s ease;
}

.admin-nav-item:hover {
    color: var(--primary);
    background-color: var(--slate-100);
}

.admin-nav-item.active {
    color: var(--primary);
    background-color: var(--primary-light);
}

/* Auth / Login Page styling */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 10% 20%, rgb(240, 244, 255) 0%, rgb(248, 250, 252) 90%);
    padding: 2rem 1rem;
}

.auth-card {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: 1.25rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    padding: 2.5rem;
    width: 100%;
    max-width: 440px;
}

/* Article Reading View */
.article-header {
    margin-bottom: 2.5rem;
}

.article-title {
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    color: var(--slate-900);
}

.article-abstract-box {
    background: #f8fafc;
    border-left: 4px solid var(--primary);
    border-radius: 0.5rem;
    padding: 1.25rem 1.5rem;
    margin: 2rem 0;
}

.article-prose {
    font-size: 1.1rem;
    line-height: 1.85;
    color: var(--slate-800);
    word-break: break-word;
}

.article-prose p {
    margin-bottom: 1.25rem;
}

.article-prose blockquote {
    border-left: 4px solid #818cf8;
    background: #f8fafc;
    padding: 0.85rem 1.25rem;
    border-radius: 0 0.5rem 0.5rem 0;
    font-style: italic;
    color: var(--slate-600);
    margin: 1.5rem 0;
}

.article-prose code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background-color: var(--slate-100);
    color: var(--primary);
    padding: 0.2rem 0.4rem;
    border-radius: 0.35rem;
    border: 1px solid var(--slate-200);
}

.article-prose pre {
    background-color: var(--slate-900);
    color: #f8fafc;
    border-radius: 0.75rem;
    padding: 1.25rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.article-prose pre code {
    background: transparent;
    border: none;
    color: inherit;
    padding: 0;
}

.citation-card {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: 0.875rem;
    padding: 1.5rem;
    margin-top: 3rem;
}

.citation-code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background-color: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: 0.5rem;
    padding: 1rem;
    color: var(--slate-800);
    word-break: break-all;
}

/* Search and Filter bar */
.search-input-group {
    position: relative;
}

.search-input-group i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--slate-400);
}

.search-input-group .form-control {
    padding-left: 2.75rem;
}

/* User avatar initial */
.avatar-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}