/* ==========================================================================
   ADMIN PANEL — E-LIBRARY MINSAGA
   Sengaja tidak punya :root sendiri — semua warna, font, dan skala spasi
   diimpor langsung dari perpustakaan.css supaya panel admin & katalog
   publik satu sumber kebenaran (DRY). File ini cuma menambah komponen
   yang belum ada di sana: kartu login, panel form, tabel, badge, dan
   grup rak yang bisa di-collapse.
   ========================================================================== */

@import url('perpustakaan.css');

/* ---------- halaman login ---------- */

.admin-login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.admin-login-card {
    width: 100%;
    max-width: 400px;
    background: var(--bg-panel);
    border: 1px solid var(--line);
    border-radius: 2px 10px 10px 2px;
    box-shadow: 3px 10px 18px rgba(20, 20, 15, 0.16);
    padding: var(--space-6) var(--space-4) var(--space-4);
    position: relative;
}

.admin-login-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--forest-deep);
}

.admin-login-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--label-bg);
    color: var(--forest-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-3);
}

.admin-login-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.4rem;
    color: var(--forest-deep);
    text-align: center;
}

.admin-login-subtitle {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-align: center;
    color: var(--ink-soft);
    margin-bottom: var(--space-4);
}

.admin-footer-note {
    text-align: center;
    margin-top: var(--space-3);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.03em;
    color: var(--ink-soft);
    opacity: 0.75;
}

/* ---------- form fields (dipakai login & manage buku) ---------- */

.admin-field { margin-bottom: var(--space-3); }

.admin-field label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-bottom: 6px;
}

.admin-field input,
.admin-field select,
.admin-field textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 0.9rem;
    border-radius: 2px;
    transition: border-color 0.2s ease;
}

.admin-field input:focus,
.admin-field select:focus,
.admin-field textarea:focus {
    outline: none;
    border-color: var(--forest);
}

.admin-field textarea { resize: vertical; }

.admin-btn {
    width: 100%;
    padding: 13px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--cover-ink);
    background: var(--forest-deep);
    border: none;
    border-radius: 2px 8px 8px 2px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.admin-btn:hover { background: var(--stamp); }

.admin-alert {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 10px 14px;
    border: 1px solid var(--stamp);
    color: var(--stamp);
    background: rgba(181, 72, 44, 0.06);
    margin-bottom: var(--space-3);
    text-align: center;
}

/* ---------- topbar tambahan (nav publik pakai .topbar dari perpustakaan.css) ---------- */

.topbar__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.btn-logout {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--stamp);
    background: none;
    border: 1px solid var(--stamp);
    padding: 7px 14px;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.btn-logout:hover { background: var(--stamp); color: var(--cover-ink); }

/* ---------- halaman manage buku ---------- */

.admin-body { min-height: 100vh; }

.admin-container {
    padding: var(--space-6) 7% var(--space-8);
    max-width: 1400px;
    margin: 0 auto;
}

.admin-grid {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: var(--space-4);
    align-items: start;
}

@media (max-width: 1100px) {
    .admin-grid { grid-template-columns: 1fr; }
}

.admin-panel {
    background: var(--bg-panel);
    border: 1px solid var(--line);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
    border-radius: 2px;
}

.admin-panel__title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--forest-deep);
    border-left: 4px solid var(--forest);
    padding-left: 10px;
    margin-bottom: var(--space-3);
}

.admin-status {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 12px 16px;
    border: 1px solid;
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-status--success { color: var(--forest-deep); border-color: var(--forest); background: rgba(47, 93, 69, 0.06); }
.admin-status--error { color: var(--stamp); border-color: var(--stamp); background: rgba(181, 72, 44, 0.06); }

.admin-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    align-items: center;
    margin-bottom: var(--space-4);
}

.admin-search { flex: 1; min-width: 220px; }

.admin-search input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--line);
    background: #fff;
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.admin-search input:focus { outline: none; border-color: var(--forest); }

.admin-filter-kategori {
    padding: 12px 14px;
    border: 1px solid var(--line);
    background: #fff;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--ink-soft);
}

.admin-empty {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--ink-soft);
    text-align: center;
    padding: var(--space-6) 0;
}

/* ---------- grup rak (collapsible) ---------- */

.kelas-group {
    border: 1px solid var(--line-soft);
    margin-bottom: var(--space-3);
    background: #fff;
}

.kelas-group__summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 12px 16px;
    background: var(--bg-panel);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--forest-deep);
    user-select: none;
}

.kelas-group__summary::-webkit-details-marker { display: none; }
.kelas-group__summary::marker { content: ''; }

.kelas-group__summary .chevron {
    width: 16px;
    height: 16px;
    color: var(--ink-soft);
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.kelas-group[open] .kelas-group__summary .chevron { transform: rotate(90deg); }

.kelas-group__count {
    margin-left: auto;
    font-weight: 600;
    color: var(--ink-soft);
    font-size: 0.72rem;
}

/* ---------- tabel koleksi ---------- */

.table-container { overflow-x: auto; }

.admin-table { width: 100%; border-collapse: collapse; background: #fff; }

.admin-table th {
    text-align: left;
    font-family: var(--font-mono);
    font-size: 0.66rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--ink-soft);
    padding: 10px 16px;
    border-bottom: 1px solid var(--line);
}

.admin-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--line-soft);
    font-size: 0.85rem;
    vertical-align: middle;
}

.admin-table tr:last-child td { border-bottom: none; }

.tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 3px 9px;
    background: var(--label-bg);
    color: var(--label-ink);
    border: 1px solid rgba(0, 0, 0, 0.12);
}

.btn-delete {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--stamp);
    color: var(--stamp);
    background: none;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.btn-delete:hover { background: var(--stamp); color: var(--cover-ink); }

/* ---------- responsive ---------- */

@media (max-width: 768px) {
    .admin-container { padding-left: 5%; padding-right: 5%; }
}