/**
 * Academic CSS Theme for Research Platform
 *
 * Professional academic styling with navy blue primary color,
 * serif headings, and clean layout optimized for research content.
 */

/* Color Palette */
:root {
    --academic-navy: #003366;
    --academic-navy-light: #0056b3;
    --academic-gray: #495057;
    --academic-gray-light: #6c757d;
    --academic-bg: #f8f9fa;
    --academic-border: #dee2e6;
    --academic-success: #2e7d32;
    --academic-warning: #f57c00;
    --academic-error: #d32f2f;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Crimson Text', 'Georgia', 'Times New Roman', serif;
    color: var(--academic-navy);
    font-weight: 600;
    line-height: 1.3;
}

body {
    font-family: 'Source Sans Pro', 'Helvetica Neue', Arial, sans-serif;
    color: var(--academic-gray);
    line-height: 1.7;
}

/* Links */
a {
    color: var(--academic-navy);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--academic-navy-light);
    text-decoration: underline;
}

/* Code */
code {
    background: var(--academic-bg);
    border: 1px solid var(--academic-border);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-size: 0.9em;
}

pre {
    background: var(--academic-bg);
    border-left: 4px solid var(--academic-navy);
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
}

/* Tables */
table {
    border-collapse: collapse;
    width: 100%;
    margin: 1.5rem 0;
}

th {
    background: var(--academic-navy);
    color: white;
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
}

td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--academic-border);
}

tr:hover {
    background: var(--academic-bg);
}

/* Blockquotes */
blockquote {
    border-left: 4px solid var(--academic-navy);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--academic-gray-light);
}

/* Lists */
ul, ol {
    padding-left: 2rem;
    margin: 1rem 0;
}

li {
    margin: 0.5rem 0;
}

/* Badges and Labels */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-primary {
    background: var(--academic-navy);
    color: white;
}

.badge-success {
    background: var(--academic-success);
    color: white;
}

.badge-warning {
    background: var(--academic-warning);
    color: white;
}

/* Cards */
.card {
    background: white;
    border: 1px solid var(--academic-border);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.card-header {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--academic-navy);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--academic-border);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--academic-navy);
    color: white;
}

.btn-primary:hover {
    background: var(--academic-navy-light);
    transform: translateY(-1px);
}

/* Academic-specific components */
.citation {
    font-size: 0.9rem;
    color: var(--academic-gray-light);
    margin: 1rem 0;
    padding: 1rem;
    background: var(--academic-bg);
    border-left: 3px solid var(--academic-navy);
}

.author-list {
    font-style: italic;
    color: var(--academic-gray-light);
}

.publication-date {
    color: var(--academic-gray-light);
    font-size: 0.9rem;
}

.doi-link {
    font-family: monospace;
    background: var(--academic-bg);
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .card {
        padding: 1rem;
    }
}

/* Print styles */
@media print {
    a {
        text-decoration: underline;
    }

    .card {
        page-break-inside: avoid;
    }
}