@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Lato:wght@300;400;700&display=swap');

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #1e2a47;
    --bg-input: #243350;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a8b8;
    --text-muted: #6b7280;
    --accent: #c45e2c;
    --accent-hover: #d4722e;
    --accent-light: rgba(196, 94, 44, 0.15);
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border: #2a3a5c;
    --sidebar-width: 250px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Lato', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

h1, h2, h3, h4 { font-family: 'Playfair Display', serif; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* Login page */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}
.login-box {
    background: var(--bg-card);
    padding: 48px 40px;
    border-radius: 16px;
    width: 400px;
    border: 1px solid var(--border);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-box h1 {
    text-align: center;
    margin-bottom: 8px;
    color: var(--accent);
    font-size: 28px;
}
.login-box .subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 14px;
}

/* Layout */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}
.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
}
.sidebar-header .lib-name {
    font-family: 'Playfair Display', serif;
    font-size: 16px;
    font-weight: 700;
    color: var(--accent);
}
.sidebar-logo-panel {
    flex: 1;
    min-height: 120px;
    display: grid;
    place-items: center;
    padding: 22px;
}
.sidebar-logo-panel img {
    width: min(190px, 100%);
    max-height: 190px;
    height: auto;
    border-radius: 14px;
    object-fit: contain;
}
.sidebar-nav {
    flex: 0 0 auto;
    padding: 12px 0;
}
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}
.sidebar-nav a:hover {
    background: var(--accent-light);
    color: var(--text-primary);
}
.sidebar-nav a.active {
    background: var(--accent-light);
    color: var(--accent);
    border-left-color: var(--accent);
    font-weight: 700;
}
.sidebar-nav a svg { width: 20px; height: 20px; flex-shrink: 0; }
.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}
.sidebar-footer .user-name { color: var(--text-primary); font-weight: 700; }
.sidebar-logout { display: inline-block; margin-top: 9px; color: var(--accent); font-size: .9rem; font-weight: 700; text-decoration: none; }
.sidebar-logout:hover { text-decoration: underline; text-underline-offset: 3px; }
.about-program-link { display: block; margin-top: 12px; padding: 0; color: var(--text-muted); font-size: .72rem; text-decoration: underline; text-underline-offset: 2px; background: transparent; border: 0; cursor: pointer; }
.about-program-link:hover { color: var(--accent); }
.about-program-modal { max-width: 420px; }
.about-program-modal h2 { margin-bottom: 18px; }
.about-library-name { color: var(--text-primary); font-size: 1.05rem; font-weight: 700; }
.about-program-modal p { margin: 8px 0; }
.about-program-credit { color: var(--text-secondary); font-size: .8rem; }

/* Dashboard: operational front door */
.dashboard-hero {
    position: relative;
    overflow: hidden;
    min-height: 250px;
    display: flex;
    align-items: center;
    padding: clamp(26px, 5vw, 52px);
    margin-bottom: 20px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: linear-gradient(120deg, var(--bg-card), rgba(39, 71, 108, 0.72));
}
.dashboard-hero-content { position: relative; z-index: 1; max-width: 720px; }
.dashboard-kicker { color: var(--accent); font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 8px; }
.dashboard-hero h1 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.5rem); }
.dashboard-subtitle { margin: 9px 0 24px; color: var(--text-secondary); font-size: 1.02rem; }
.dashboard-watermark { position: absolute; right: clamp(20px, 7vw, 105px); top: 50%; transform: translateY(-50%); width: min(330px, 38vw); max-height: 220px; object-fit: contain; opacity: .3; pointer-events: none; }
.dashboard-search { display: flex; gap: 9px; max-width: 670px; }
.dashboard-search .form-control { background: rgba(12, 26, 44, .85); }
.dashboard-actions { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-bottom: 18px; }
.dashboard-action { display: flex; gap: 16px; align-items: center; min-height: 120px; padding: 24px; color: var(--text-primary); text-decoration: none; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; transition: .18s ease; }
.dashboard-action:hover { border-color: var(--accent); transform: translateY(-2px); }
.dashboard-action-icon { display: grid; place-items: center; flex: 0 0 auto; width: 56px; height: 56px; border-radius: 12px; background: var(--accent-light); font-size: 1.55rem; }
.dashboard-action strong, .dashboard-action small { display: block; }
.dashboard-action strong { font-size: 1.28rem; }
.dashboard-action small { margin-top: 5px; color: var(--text-secondary); font-size: .86rem; line-height: 1.4; }
.dashboard-stats { grid-template-columns: repeat(3, minmax(180px, 1fr)); gap: 12px; max-width: 940px; }
.dashboard-stats .stat-card { display: block; min-height: 82px; padding: 13px 16px; color: inherit; text-decoration: none; }
.dashboard-stats .stat-number { font-size: 1.05rem; }
.dashboard-stats .stat-label { margin-top: 2px; font-size: .76rem; }
.dashboard-stats .stat-detail { margin-top: 4px; color: var(--text-secondary); font-size: .7rem; line-height: 1.3; }
.dashboard-guidance { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.dashboard-guidance h3 { margin-bottom: 6px; }
.dashboard-guidance p { color: var(--text-secondary); font-size: .9rem; line-height: 1.5; max-width: 760px; }
.discard-copy-result { width: 100%; display: flex; flex-direction: column; gap: 2px; padding: 9px 11px; text-align: left; color: var(--text-primary); background: var(--bg-card); border: 1px solid var(--border); border-radius: 7px; cursor: pointer; }
.discard-copy-result + .discard-copy-result { margin-top: 5px; }
.discard-copy-result:hover { border-color: var(--accent); background: var(--accent-light); }
.discard-copy-result span { color: var(--text-secondary); font-size: .82rem; }

/* Main content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 32px;
    max-width: calc(100vw - var(--sidebar-width));
}
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}
.page-header h1 { font-size: 24px; }

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.card-header h3 { font-size: 16px; }

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}
.stat-card .stat-number {
    font-size: 36px;
    font-weight: 700;
    font-family: 'Playfair Display', serif;
    color: var(--accent);
}
.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 8px;
    border: none;
    font-size: 14px;
    font-family: 'Lato', sans-serif;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}
.btn-primary {
    background: var(--accent);
    color: white;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border); }
.btn-danger {
    background: var(--danger);
    color: white;
}
.btn-danger:hover { opacity: 0.9; }
.btn-success {
    background: var(--success);
    color: white;
}
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-block { width: 100%; justify-content: center; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 700;
}
.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'Lato', sans-serif;
    transition: border-color 0.2s;
}
.form-control:focus {
    outline: none;
    border-color: var(--accent);
}
.form-control::placeholder { color: var(--text-muted); }
select.form-control { appearance: auto; }
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Search bar */
.search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}
.search-bar .form-control { flex: 1; }

/* Tables */
.table-container { overflow-x: auto; }
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
thead th {
    background: var(--bg-secondary);
    padding: 12px 16px;
    text-align: left;
    font-weight: 700;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}
tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}
tbody tr:hover { background: var(--accent-light); }
tbody tr { cursor: pointer; }

/* Badges / status */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}
.badge-available { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-loaned { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-overdue { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-reserved { background: rgba(59,130,246,0.15); color: #3b82f6; }
.badge-damaged { background: rgba(156,163,175,0.15); color: #9ca3af; }
.badge-waiting { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-notified { background: rgba(59,130,246,0.15); color: #3b82f6; }
.badge-fulfilled { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-cancelled { background: rgba(156,163,175,0.15); color: #9ca3af; }
.badge-returned { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-active { background: rgba(59,130,246,0.15); color: #3b82f6; }

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    width: 500px;
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.modal-wide { width: 700px; }
.modal-xl {
    width: min(95vw, 1100px);
    max-width: 95vw;
    max-height: 93vh;
}
.modal-overlay.top-align {
    align-items: flex-start;
    padding-top: 3vh;
}
.modal h2 { margin-bottom: 20px; font-size: 20px; }

/* Detail info grid inside modals */
.detail-grid {
    display: grid;
    background: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
    margin-bottom: 24px;
}
.detail-grid-2col { grid-template-columns: 1fr 1fr; }
.detail-grid-3col { grid-template-columns: repeat(3, 1fr); }
.detail-cell {
    padding: 16px 20px;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.detail-grid-2col .detail-cell:nth-child(2n) { border-right: none; }
.detail-grid-2col .detail-cell:nth-last-child(-n+2) { border-bottom: none; }
.detail-grid-3col .detail-cell:nth-child(3n) { border-right: none; }
.detail-grid-3col .detail-cell:nth-last-child(-n+3) { border-bottom: none; }
.detail-cell-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 6px;
    font-weight: 700;
}
.detail-cell-value {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.4;
}
.detail-desc {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 20px;
    margin-bottom: 24px;
}
.detail-desc .detail-cell-label { margin-bottom: 8px; }
.detail-desc .detail-cell-value { font-size: 14px; font-weight: 400; line-height: 1.6; }
.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.detail-header h2 {
    font-size: 26px;
    margin-bottom: 6px;
}
.detail-header-sub {
    font-size: 14px;
    color: var(--text-secondary);
}
.detail-tabs .tab {
    padding: 11px 22px;
    font-size: 14px;
    font-weight: 600;
}
.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
}

/* Activity feed */
.activity-feed { list-style: none; }
.activity-item {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.activity-item:last-child { border-bottom: none; }
.activity-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent);
    margin-top: 6px;
    flex-shrink: 0;
}
.activity-time {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}
.tab {
    padding: 10px 20px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: 'Lato', sans-serif;
}
.tab:hover { color: var(--text-primary); }
.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
    font-weight: 700;
}
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Toast notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toast {
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 14px;
    color: white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    animation: slideIn 0.3s ease;
    max-width: 400px;
}
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-warning { background: var(--warning); color: #1a1a2e; }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Pagination */
.pagination {
    display: flex;
    gap: 4px;
    justify-content: center;
    margin-top: 20px;
}
.pagination button {
    padding: 6px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
}
.pagination button.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}
.pagination button:hover:not(.active) { background: var(--border); }
.pagination button:disabled { opacity: .45; cursor: not-allowed; }
.pagination button:disabled:hover { background: var(--bg-input); }
.pagination-summary { align-self: center; padding: 0 10px; color: var(--text-secondary); font-size: .84rem; }

/* Responsive */
@media (max-width: 768px) {
    .sidebar { width: 60px; }
    .sidebar-nav a span { display: none; }
    .sidebar-header .lib-name { display: none; }
    .main-content { margin-left: 60px; padding: 16px; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* Loading spinner */
.spinner {
    display: inline-block;
    width: 20px; height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --------------------------------------------------------------------------
   Refined application shell: calm, high-contrast work surface for daily use.
   -------------------------------------------------------------------------- */
:root {
    --bg-primary: #101827;
    --bg-secondary: #162235;
    --bg-card: #1b2a40;
    --bg-input: #243650;
    --text-primary: #f3f7fc;
    --text-secondary: #b7c3d5;
    --text-muted: #8392aa;
    --accent: #f08a4b;
    --accent-hover: #ff9f63;
    --accent-light: rgba(240, 138, 75, 0.14);
    --border: #30445f;
    --sidebar-width: 272px;
}

body {
    background:
        radial-gradient(circle at 75% -10%, rgba(61, 103, 145, 0.22), transparent 31rem),
        var(--bg-primary);
    font-size: 16px;
    line-height: 1.5;
}

button, input, select, textarea { font: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 3px solid rgba(240, 138, 75, 0.58);
    outline-offset: 2px;
}

.sidebar {
    background: linear-gradient(180deg, #152339 0%, #101b2d 100%);
    box-shadow: 12px 0 32px rgba(0, 0, 0, 0.14);
}
.sidebar-header { padding: 26px 22px 22px; }
.sidebar-header .lib-name { font-size: 1.16rem; letter-spacing: 0.01em; color: #fff; }
.sidebar-nav { padding: 18px 0; }
.sidebar-nav a {
    margin: 2px 12px;
    padding: 11px 12px;
    border-left: 0;
    border-radius: 9px;
    font-size: 0.94rem;
}
.sidebar-nav a.active {
    border-left-color: transparent;
    box-shadow: inset 0 0 0 1px rgba(240, 138, 75, 0.24);
}
.sidebar-footer { padding: 18px 22px; }

.main-content { padding: 38px clamp(20px, 4vw, 56px); }
.page-header { margin-bottom: 28px; gap: 16px; }
.page-header h1 { font-size: clamp(1.75rem, 2.6vw, 2.35rem); letter-spacing: -0.02em; }
.page-header > div { display: flex; flex-wrap: wrap; gap: 8px; }
.card, .stat-card {
    background: linear-gradient(145deg, rgba(30, 47, 70, 0.96), rgba(24, 39, 59, 0.96));
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.14);
}
.card { border-radius: 14px; padding: 26px; }
.stat-card { position: relative; overflow: hidden; padding: 24px; text-align: left; }
.stat-card::after {
    content: '';
    position: absolute;
    width: 92px;
    height: 92px;
    top: -48px;
    right: -36px;
    border: 18px solid rgba(240, 138, 75, 0.14);
    border-radius: 50%;
}
.stat-card .stat-number { font-size: 2.55rem; color: #fff; }
.stat-card .stat-label { font-size: 0.9rem; margin-top: 6px; }
.stats-grid { gap: 18px; margin-bottom: 28px; }

.btn { min-height: 40px; border-radius: 9px; font-weight: 700; }
.btn-sm { min-height: 32px; }
.btn-primary { box-shadow: 0 7px 16px rgba(240, 138, 75, 0.18); }
.btn:hover { transform: translateY(-1px); }
.form-control { min-height: 42px; border-radius: 9px; }
.search-bar { align-items: center; margin-bottom: 18px; }

.table-container { border: 1px solid var(--border); border-radius: 10px; }
table { min-width: 620px; }
thead th { padding: 13px 16px; }
tbody td { padding: 14px 16px; }
tbody tr { transition: background-color 0.16s ease; }
.badge { padding: 4px 9px; font-size: 0.7rem; letter-spacing: 0.02em; }
.modal { box-shadow: 0 28px 72px rgba(0, 0, 0, 0.5); }
.tabs { overflow-x: auto; scrollbar-width: thin; }
.tab { white-space: nowrap; }
.activity-item { padding: 14px 0; }
.activity-dot { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-light); }
.mobile-topbar { display: none; }

@media (max-width: 768px) {
    .sidebar {
        width: min(82vw, 300px);
        transform: translateX(-100%);
        transition: transform 0.2s ease;
    }
    .sidebar.is-open { transform: translateX(0); }
    .sidebar-nav a span, .sidebar-header .lib-name { display: inline; }
    .app-layout::after {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(4, 10, 19, 0.48);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s ease;
    }
    .app-layout:has(.sidebar.is-open)::after { opacity: 1; pointer-events: auto; }
    .main-content { max-width: 100vw; margin-left: 0; padding: 14px 16px 28px; }
    .dashboard-hero { min-height: 0; padding: 28px 20px; }
    .dashboard-watermark { width: 210px; right: -30px; opacity: .2; }
    .dashboard-search { flex-direction: column; }
    .dashboard-actions { grid-template-columns: 1fr; }
    .dashboard-guidance { align-items: flex-start; flex-direction: column; }
    .mobile-topbar { display: flex; justify-content: space-between; align-items: center; padding: 6px 0 20px; }
    .mobile-brand { font-family: 'Playfair Display', serif; font-size: 1.12rem; font-weight: 700; }
    .nav-toggle { width: 42px; height: 42px; display: grid; place-items: center; color: var(--text-primary); background: var(--bg-card); border: 1px solid var(--border); border-radius: 9px; cursor: pointer; }
    .nav-toggle svg { width: 22px; height: 22px; }
    .page-header { align-items: flex-start; margin-bottom: 20px; }
    .page-header h1 { font-size: 1.7rem; }
    .card { padding: 16px; border-radius: 12px; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .stat-card { padding: 17px; }
    .stat-card .stat-number { font-size: 2rem; }
    .search-bar { flex-wrap: wrap; }
    .search-bar .form-control { min-width: 100%; }
    .search-bar select.form-control { max-width: none !important; }
    .detail-grid-2col, .detail-grid-3col { grid-template-columns: 1fr; }
    .detail-grid .detail-cell { border-right: none; }
    .detail-grid .detail-cell:last-child { border-bottom: none; }
    .modal { padding: 22px 18px; max-width: calc(100vw - 24px); }
    .modal-actions { flex-wrap: wrap; }
    .modal-actions .btn { flex: 1 1 auto; justify-content: center; }
}

/* Settings sections */
.settings-section {
    margin-bottom: 32px;
}
.settings-section h3 {
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-muted);
}
.empty-state svg { width: 48px; height: 48px; margin-bottom: 12px; opacity: 0.5; }

/* Detail cards: make operational actions prominent and imported metadata quiet. */
.detail-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.detail-header-actions, .section-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.detail-header-actions .btn-text { font-size: 0.78rem; min-height: 30px; padding-inline: 9px; color: var(--text-muted); }
.btn-text { background: transparent; color: var(--text-secondary); border: 0; box-shadow: none; }
.btn-text:hover { color: var(--text-primary); background: var(--bg-input); }
#detail-member-number { display: inline-block; font-size: 1.18rem; letter-spacing: 0.04em; color: var(--text-primary); }
.member-profile-summary { margin-top: 6px; }
.member-profile-summary .detail-cell { padding: 8px 12px; }
.member-profile-summary .detail-cell-label { font-size: 0.68rem; }
.member-profile-summary .detail-cell-value { font-size: 0.8rem; color: var(--text-secondary); }
.book-compact-facts { display: flex; flex-wrap: wrap; align-items: baseline; gap: 5px 16px; margin: 0 0 13px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg-input); opacity: 0.78; }
.book-compact-fact { display: inline-flex; align-items: baseline; gap: 4px; min-width: 0; }
.book-compact-fact span { color: var(--text-muted); font-size: 0.63rem; white-space: nowrap; }
.book-compact-fact strong { color: var(--text-secondary); font-size: 0.76rem; font-weight: 600; overflow-wrap: anywhere; }
.tab-muted { opacity: 0.66; font-size: 0.78rem; }
.copy-edition-fields { margin: 12px 0; padding: 10px; border: 1px solid var(--border); border-radius: 8px; }
.copy-edition-fields summary { cursor: pointer; color: var(--text-secondary); font-size: 0.82rem; }
.copies-header { margin-top: 8px; margin-bottom: 12px; }
.copies-header h3 { font-size: 1.35rem; color: var(--text-primary); }
#bt-copies .table-container { border-color: rgba(240, 138, 75, 0.42); }
#bt-copies tbody td { font-size: 0.98rem; }
.select-results { margin-top: 10px; max-height: 330px; overflow-y: auto; border: 1px solid var(--border); border-radius: 9px; }
.select-result { width: 100%; padding: 12px 14px; text-align: left; display: flex; flex-direction: column; gap: 3px; background: transparent; border: 0; border-bottom: 1px solid var(--border); color: var(--text-primary); cursor: pointer; }
.select-result:hover { background: var(--bg-input); }
.select-result span { color: var(--text-secondary); font-size: 0.82rem; }
.modal-permissions { width: min(900px, calc(100vw - 32px)); max-width: 900px; }
.modal-permissions th, .modal-permissions td { padding: 16px 20px; font-size: 0.98rem; }
.modal-permissions input[type="checkbox"] { width: 20px; height: 20px; cursor: pointer; }
.badge-paid { background: rgba(76, 175, 80, 0.18); color: #72d59a; }
.badge-not_paid { background: rgba(240, 138, 75, 0.18); color: #ffb37f; }
.badge-expired { background: rgba(239, 68, 68, 0.15); color: #ff8e8e; }
.app-loading .app-layout, .app-loading .toast-container { visibility: hidden; }
.app-loading .sidebar, .app-loading .sidebar-header, .app-loading .sidebar-logo-panel { visibility: visible; }
.app-loading .sidebar-nav, .app-loading .sidebar-footer { visibility: hidden; }
.app-ready .app-layout { visibility: visible; }
.member-notes { max-height: 76px; min-height: 0; padding: 8px 12px; margin: 8px 0 14px; overflow: auto; }
.member-notes .detail-cell-label { font-size: 0.66rem; }
.member-notes .detail-cell-value { font-size: 0.77rem; color: var(--text-secondary); line-height: 1.35; }
.detail-footer-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }
.detail-footer-actions .btn { min-height: 28px; padding: 4px 8px; font-size: 0.72rem; opacity: 0.72; }
.detail-footer-actions .btn:hover { opacity: 1; }
.year-input { appearance: textfield; text-align: center; font-variant-numeric: tabular-nums; }
.btn-issue { min-height: 38px; padding: 8px 15px; font-size: 0.86rem; }
.loan-actions { white-space: nowrap; }
.loan-action-return { min-height: 38px; padding: 8px 15px; font-size: 0.86rem; }
.loan-action-extend { min-height: 28px; padding: 3px 7px; font-size: 0.7rem; opacity: 0.72; }
.loan-action-extend:hover { opacity: 1; }
.loan-book-summary { margin: 0 0 18px; padding: 14px; border: 1px solid rgba(240, 138, 75, 0.45); border-radius: 10px; background: var(--accent-light); font-size: 0.9rem; }
.loan-book-summary > div:not(:first-child) { margin-top: 5px; color: var(--text-secondary); }
.loan-book-summary-title { margin-bottom: 8px; color: var(--text-primary); font-size: 1.08rem; font-weight: 700; }
.loan-book-summary strong { color: var(--text-primary); }

.catalog-metadata { margin: 16px 0; padding: 14px; border: 1px solid rgba(240, 138, 75, 0.25); border-radius: 10px; background: rgba(240, 138, 75, 0.05); }
.catalog-metadata-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.catalog-metadata-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 10px 0; }
.catalog-metadata-grid div { display: flex; flex-direction: column; gap: 3px; }
.catalog-metadata-grid span, .catalog-tag-row > span { color: var(--text-muted); font-size: .68rem; text-transform: uppercase; letter-spacing: .03em; }
.catalog-metadata-grid strong { color: var(--text-secondary); font-size: .82rem; font-weight: 600; }
.catalog-tag-row { display: grid; grid-template-columns: 95px 1fr; gap: 10px; align-items: start; margin-top: 8px; }
.catalog-tag-row > div { display: flex; flex-wrap: wrap; gap: 5px; color: var(--text-secondary); font-size: .8rem; }
.catalog-tag-row > div span { padding: 3px 6px; background: var(--bg-input); border-radius: 999px; }

.member-recommendations-intro { margin: 2px 0 14px; color: var(--text-secondary); font-size: .84rem; line-height: 1.45; }
.member-recommendation-signals { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.member-recommendation-signals span, .member-recommendation-badges span, .member-recommendation-reasons span { padding: 4px 7px; border-radius: 999px; background: var(--bg-input); color: var(--text-secondary); font-size: .7rem; }
.member-recommendation-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(245px, 1fr)); gap: 12px; }
.member-recommendation-card { padding: 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-card); }
.member-recommendation-open { margin-top: 12px; }
.member-recommendation-card-head { display: flex; justify-content: space-between; gap: 12px; }
.member-recommendation-card h4 { margin: 0 0 3px; color: var(--text-primary); font-size: .98rem; }
.member-recommendation-card-head span, .member-recommendation-card p { color: var(--text-secondary); font-size: .8rem; }
.member-recommendation-card-head > strong { color: var(--accent); white-space: nowrap; }
.member-recommendation-card p { margin: 10px 0; line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.member-recommendation-based { color: var(--accent); font-size: .72rem; font-weight: 700; margin-bottom: 7px; }
.member-recommendation-badges, .member-recommendation-reasons { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.member-preference-actions { display: flex; flex-wrap: wrap; gap: 4px; }
.member-preference-button { width: 31px; min-width: 31px; height: 28px; padding: 0; border: 1px solid var(--border); border-radius: 7px; background: var(--bg-input); cursor: pointer; opacity: .52; font-size: .83rem; }
.member-preference-button:hover, .member-preference-button.is-selected { opacity: 1; }
.member-preference-button.liked { color: #72d59a; border-color: rgba(114, 213, 154, .45); background: rgba(76, 175, 80, .08); }
.member-preference-button.avoid { color: #ff9a9a; border-color: rgba(255, 154, 154, .45); background: rgba(239, 68, 68, .08); }
.member-preference-button.liked.is-selected { border-color: #72d59a; background: rgba(76, 175, 80, .18); }
.member-preference-button.avoid.is-selected { border-color: #ff9a9a; background: rgba(239, 68, 68, .18); }

/* Catalog discovery and recommendations */
.page-subtitle, .muted-text { color: var(--text-secondary); }
.page-subtitle { margin: 6px 0 0; max-width: 760px; }
.discovery-hero { margin-bottom: 30px; }
.discovery-label { display: block; margin-bottom: 10px; color: var(--text-primary); font-size: 1.05rem; font-weight: 700; }
.discovery-search-row { display: flex; gap: 10px; }
.discovery-search-row .form-control { flex: 1; }
.discovery-search-row .btn { flex: 0 0 auto; }
.discovery-filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); align-items: center; gap: 10px; margin-top: 14px; color: var(--text-secondary); }
.discovery-filters label { display: flex; align-items: center; gap: 7px; cursor: pointer; }
.discovery-filters .form-control { width: 100%; }
.discovery-section { margin: 32px 0; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.section-heading h2 { margin: 0; font-size: 1.25rem; }
.discovery-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 16px; }
.discovery-results { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 14px; }
.discovery-card { padding: 18px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; cursor: pointer; transition: transform .16s ease, border-color .16s ease; }
.discovery-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.discovery-card h3 { margin: 0 0 4px; color: var(--text-primary); font-size: 1.02rem; }
.discovery-card p { margin: 13px 0; color: var(--text-secondary); font-size: .86rem; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.discovery-card-top { display: flex; gap: 10px; justify-content: space-between; }
.discovery-badges, .discovery-tags, .discovery-reasons { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.discovery-badges span, .discovery-tags span, .discovery-score, .discovery-reasons span { padding: 4px 7px; border-radius: 999px; font-size: .69rem; background: var(--bg-input); color: var(--text-secondary); }
.discovery-reasons span { background: rgba(196, 94, 44, .12); color: var(--accent); }
.discovery-availability.available { background: rgba(76, 175, 80, .18); color: #72d59a; }
.discovery-availability.unavailable { background: rgba(239, 68, 68, .15); color: #ff9a9a; }
.discovery-score { white-space: nowrap; color: var(--accent); font-weight: 700; }
.discovery-open { color: var(--accent); font-size: .76rem; font-weight: 700; margin-top: 14px; }
@media (max-width: 620px) {
    .discovery-search-row { flex-direction: column; align-items: stretch; }
    .discovery-filters { grid-template-columns: 1fr; }
    .discovery-search-row .btn, .discovery-filters .form-control { width: 100%; }
    .section-heading { align-items: flex-start; flex-direction: column; gap: 5px; }
    .catalog-metadata-grid { grid-template-columns: 1fr 1fr; }
}