/* assets/css/style.css */
:root {
    --usn-blue: #0d47a1;
    --usn-orange: #f57c00;
    --usn-light: #f8f9fa;
    --usn-gray: #6c757d;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: var(--usn-light);
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex-grow: 1;
}

/* Typography & Links */
a {
    color: var(--usn-blue);
}
a:hover {
    color: var(--usn-orange);
}
.hover-primary:hover {
    color: var(--usn-blue) !important;
}

/* Custom Primary Colors */
.text-primary {
    color: var(--usn-blue) !important;
}
.bg-primary {
    background-color: var(--usn-blue) !important;
}
.btn-primary {
    background-color: var(--usn-blue);
    border-color: var(--usn-blue);
}
.btn-primary:hover {
    background-color: #0b3c8a;
    border-color: #0b3c8a;
}
.btn-outline-primary {
    color: var(--usn-blue);
    border-color: var(--usn-blue);
}
.btn-outline-primary:hover {
    background-color: var(--usn-blue);
    border-color: var(--usn-blue);
    color: #fff;
}

.text-warning {
    color: var(--usn-orange) !important;
}

/* Hero Section */
.hero-section {
    background: white;
    color: #333;
    padding: 80px 0;
}
.search-box-large {
    background: white;
    padding: 8px;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}
.search-box-large input {
    border: none;
    box-shadow: none;
    font-size: 1.1rem;
    padding: 15px 20px;
}
.search-box-large input:focus {
    box-shadow: none;
}
.search-box-large button {
    border-radius: 6px;
    padding: 0 30px;
    font-weight: 600;
}

/* Cards & Lists */
.card {
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-radius: 8px;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease;
}
.doc-list-item {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    border-left: 4px solid var(--usn-blue);
    transition: all 0.2s ease;
}
.doc-list-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transform: translateY(-2px);
}
.doc-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--usn-blue);
    margin-bottom: 8px;
    text-decoration: none;
}
.doc-title:hover {
    color: var(--usn-orange);
}
.doc-meta {
    font-size: 0.85rem;
    color: var(--usn-gray);
    margin-bottom: 10px;
}
.doc-abstract {
    font-size: 0.95rem;
    color: #555;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.badge-type {
    background-color: #e3f2fd;
    color: var(--usn-blue);
    font-weight: 500;
    font-size: 0.75rem;
}

/* Sidebar Filters */
.filter-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.filter-header {
    font-weight: 600;
    padding: 15px;
    border-bottom: 1px solid #f0f0f0;
}
.filter-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.filter-list li {
    padding: 10px 15px;
    border-bottom: 1px solid #f8f9fa;
}
.filter-list li a {
    text-decoration: none;
    color: #444;
    display: flex;
    justify-content: space-between;
}
.filter-list li a:hover {
    color: var(--usn-blue);
    background-color: rgba(13, 71, 161, 0.05);
}

/* Detail Page */
.metadata-table th {
    width: 25%;
    color: var(--usn-gray);
    font-weight: 500;
}