@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Cairo:wght@400;600;700&display=swap");

:root {
    --bg: #09070f;
    --bg-soft: #121026;
    --card: rgba(22, 20, 40, 0.9);
    --card-2: rgba(35, 32, 66, 0.8);
    --text: #f4f3ff;
    --muted: #b4afda;
    --accent: #9f7bff;
    --accent-2: #6a4cff;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --border: rgba(176, 160, 255, 0.25);
    --radius: 16px;
    --radius-sm: 10px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--text);
    font-family: "Cairo", "Space Grotesk", sans-serif;
    background:
        radial-gradient(circle at 20% 0%, #1b1636 0%, rgba(11, 8, 20, 0) 42%),
        radial-gradient(circle at 85% 10%, #2a1f52 0%, rgba(11, 8, 20, 0) 38%),
        linear-gradient(165deg, #06050d 0%, #100d1b 50%, #07050d 100%);
    min-height: 100vh;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    color: #c9b6ff;
}

.layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

.sidebar {
    border-left: 1px solid var(--border);
    background: rgba(8, 6, 17, 0.88);
    padding: 28px 18px;
    backdrop-filter: blur(10px);
}

.brand {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 26px;
    letter-spacing: 0.4px;
}

.brand span {
    color: var(--accent);
}

.nav-link {
    display: block;
    padding: 12px 14px;
    margin-bottom: 8px;
    border-radius: 12px;
    color: var(--muted);
    transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
    background: linear-gradient(90deg, rgba(112, 83, 255, 0.25), rgba(112, 83, 255, 0.06));
    border: 1px solid rgba(143, 111, 255, 0.35);
}

.main-content {
    padding: 28px;
}

.page-title {
    font-size: 1.4rem;
    margin: 0 0 18px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: 0 10px 34px rgba(0, 0, 0, 0.32);
}

.card + .card {
    margin-top: 16px;
}

.grid {
    display: grid;
    gap: 14px;
}

.grid.stats {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat {
    background: var(--card-2);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(158, 134, 255, 0.24);
    padding: 14px;
}

.stat h4 {
    margin: 0 0 8px;
    font-size: 0.85rem;
    color: var(--muted);
    font-weight: 500;
}

.stat p {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
}

.table-wrap {
    overflow: auto;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(149, 126, 255, 0.2);
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

th,
td {
    padding: 12px;
    text-align: right;
    border-bottom: 1px solid rgba(136, 114, 233, 0.18);
    font-size: 0.92rem;
}

th {
    color: #d8cdfa;
    background: rgba(121, 90, 255, 0.11);
    font-weight: 600;
}

tr:hover td {
    background: rgba(130, 102, 255, 0.08);
}

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
    align-items: center;
}

.toolbar .form-control,
.toolbar .form-select {
    min-width: 180px;
}

.form-control,
.form-select {
    width: 100%;
    background: rgba(10, 9, 20, 0.85);
    color: var(--text);
    border: 1px solid rgba(151, 130, 246, 0.35);
    border-radius: 10px;
    padding: 10px 12px;
    outline: none;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(128, 92, 255, 0.24);
}

.form-check-input {
    width: 18px;
    height: 18px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 10px;
    padding: 10px 14px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(130deg, var(--accent), var(--accent-2));
}

.btn-primary:hover {
    filter: brightness(1.1);
}

.btn-outline {
    color: var(--text);
    background: transparent;
    border: 1px solid rgba(152, 130, 252, 0.5);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.18);
    color: #fecaca;
    border: 1px solid rgba(239, 68, 68, 0.35);
}

.btn-warning {
    background: rgba(245, 158, 11, 0.18);
    color: #fde68a;
    border: 1px solid rgba(245, 158, 11, 0.35);
}

.btn-sm {
    padding: 8px 11px;
    font-size: 0.85rem;
}

.auth-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 20px;
}

.auth-card {
    width: min(430px, 100%);
    background: rgba(12, 10, 22, 0.95);
    border: 1px solid rgba(155, 130, 255, 0.35);
    border-radius: 22px;
    padding: 28px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.45);
}

.auth-title {
    margin: 0 0 6px;
    font-size: 1.6rem;
}

.auth-subtitle {
    margin: 0 0 18px;
    color: var(--muted);
}

.alert {
    padding: 10px 12px;
    border-radius: 10px;
    margin-bottom: 10px;
    border: 1px solid transparent;
}

.alert-success {
    color: #86efac;
    background: rgba(34, 197, 94, 0.12);
    border-color: rgba(34, 197, 94, 0.3);
}

.alert-error,
.alert-danger {
    color: #fca5a5;
    background: rgba(239, 68, 68, 0.14);
    border-color: rgba(239, 68, 68, 0.3);
}

.alert-info {
    color: #c4b5fd;
    background: rgba(139, 92, 246, 0.16);
    border-color: rgba(139, 92, 246, 0.35);
}

.alert-warning {
    color: #fde68a;
    background: rgba(245, 158, 11, 0.16);
    border-color: rgba(245, 158, 11, 0.35);
}

.badge {
    display: inline-block;
    padding: 4px 9px;
    border-radius: 999px;
    font-size: 0.75rem;
    border: 1px solid rgba(148, 122, 250, 0.35);
    background: rgba(132, 99, 255, 0.14);
}

.empty-state {
    text-align: center;
    padding: 26px 14px;
    color: var(--muted);
}

.two-col {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 16px;
}

.section-title {
    margin: 0 0 8px;
}

.section-subtitle {
    margin: 0 0 14px;
    color: var(--muted);
}

.auto-absence-shell {
    max-width: 860px;
}

.auto-absence-form {
    display: grid;
    grid-template-columns: minmax(240px, 300px) auto;
    justify-content: end;
    align-items: end;
    gap: 12px;
}

.auto-absence-date {
    margin: 0;
}

.auto-absence-actions {
    display: flex;
    align-items: flex-end;
}

.auto-absence-actions .btn {
    min-width: 128px;
    min-height: 44px;
}

.lecture-form-shell {
    max-width: 1080px;
    margin-inline: auto;
    padding: 22px;
}

.lecture-form-header {
    margin-bottom: 16px;
    padding: 14px 16px;
    border: 1px solid rgba(155, 129, 255, 0.22);
    background: linear-gradient(140deg, rgba(122, 95, 255, 0.14), rgba(122, 95, 255, 0.05));
    border-radius: 14px;
}

.lecture-form-header h2 {
    margin: 0 0 4px;
    font-size: 1.08rem;
}

.lecture-form-header p {
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.lecture-form {
    display: grid;
    gap: 14px;
}

.lecture-form-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 14px;
}

.field-block {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.field-block > label {
    color: #e5ddff;
    font-weight: 700;
    font-size: 0.95rem;
}

.field-help {
    color: var(--muted);
    font-size: 0.85rem;
    line-height: 1.7;
}

.thumb-link {
    display: inline-block;
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.thumbnail-panel {
    border: 1px solid rgba(151, 130, 246, 0.35);
    border-radius: 12px;
    background: rgba(10, 9, 20, 0.72);
    padding: 14px;
    display: grid;
    grid-template-columns: minmax(220px, 280px) 1fr;
    gap: 14px;
}

.thumbnail-panel-preview {
    display: grid;
    align-content: start;
    gap: 8px;
}

.thumbnail-panel-actions {
    display: grid;
    align-content: start;
    gap: 10px;
}

.thumbnail-preview {
    width: 100%;
    max-width: 260px;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 10px;
    border: 1px solid rgba(151, 130, 246, 0.35);
    background: rgba(7, 6, 14, 0.95);
}

.inline-check {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #ffd4d4;
    font-weight: 700;
    font-size: 0.9rem;
}

.inline-check .form-check-input {
    margin: 0;
}

.toggle-field {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(151, 130, 246, 0.35);
    background: rgba(10, 9, 20, 0.85);
}

.toggle-field .form-check-input {
    accent-color: var(--accent-2);
}

.toggle-field label {
    margin: 0;
    font-weight: 700;
}

.lecture-form-actions {
    margin-top: 2px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.field-span-4 {
    grid-column: span 4;
}

.field-span-8 {
    grid-column: span 8;
}

.field-span-12 {
    grid-column: 1 / -1;
}

.form-control[type="file"] {
    width: 100%;
    padding: 7px;
    background: rgba(7, 6, 14, 0.95);
}

.form-control[type="file"]::file-selector-button {
    border: 0;
    border-radius: 8px;
    padding: 8px 12px;
    margin-inline-end: 10px;
    background: linear-gradient(130deg, var(--accent), var(--accent-2));
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

@media (max-width: 1024px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        border-left: 0;
        border-bottom: 1px solid var(--border);
    }

    .two-col {
        grid-template-columns: 1fr;
    }

    .field-span-4,
    .field-span-8 {
        grid-column: span 6;
    }

    .thumbnail-panel {
        grid-template-columns: 1fr;
    }

    .thumbnail-preview {
        max-width: 100%;
    }
}

@media (max-width: 640px) {
    .main-content {
        padding: 16px;
    }

    .toolbar {
        flex-direction: column;
    }

    .toolbar .form-control,
    .toolbar .form-select,
    .toolbar .btn {
        width: 100%;
    }

    .auto-absence-form {
        grid-template-columns: 1fr;
        justify-content: stretch;
    }

    .auto-absence-actions .btn {
        width: 100%;
    }

    .lecture-form-shell {
        padding: 14px;
    }

    .lecture-form-grid {
        grid-template-columns: 1fr;
    }

    .field-span-4,
    .field-span-8,
    .field-span-12 {
        grid-column: auto;
    }

    .lecture-form-actions {
        flex-direction: column-reverse;
    }

    .lecture-form-actions .btn {
        width: 100%;
    }
}