/* ExamsMarks.css */

body {
    background:
        radial-gradient(circle at top left, rgba(79, 70, 229, .18), transparent 34%),
        linear-gradient(135deg, #f8fbff 0%, #eef4ff 44%, #f8fafc 100%);
}

.exam-hero {
    margin-bottom: 18px;
    display: grid;
    grid-template-columns: 1fr minmax(260px, 360px);
    gap: 18px;
    align-items: stretch;
    background: linear-gradient(135deg, rgba(15, 23, 42, .96), rgba(30, 41, 59, .9));
    color: #fff;
    border: 1px solid rgba(148, 163, 184, .25);
    border-radius: 22px;
    padding: 22px;
    box-shadow: 0 24px 60px rgba(15, 23, 42, .18);
}

.exam-hero h1 {
    margin: 4px 0 8px;
    font-size: clamp(2rem, 4vw, 3.4rem);
}

.exam-hero p {
    margin: 0;
    color: #cbd5e1;
}

.exam-eyebrow {
    color: #93c5fd !important;
    text-transform: uppercase;
    letter-spacing: .14em;
    font-size: .78rem;
    font-weight: 800;
}

.year-card {
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 18px;
    padding: 16px;
    display: grid;
    gap: 8px;
}

.year-card label,
.control-copy strong {
    font-weight: 800;
}

.year-card select {
    min-height: 46px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, .18);
    background: #fff;
    color: #0f172a;
    padding: 0 12px;
}

.exam-control-card,
.marks-control-card {
    border-radius: 18px;
    border: 1px solid #dbeafe;
    background: linear-gradient(135deg, #ffffff, #eff6ff);
}

.control-copy {
    min-width: 240px;
    display: grid;
    gap: 4px;
    color: #0f172a;
}

.control-copy span {
    color: #64748b;
    font-size: .88rem;
}

.settings-card {
    border-radius: 20px;
    border: 1px solid #dbeafe;
    box-shadow: 0 18px 42px rgba(15, 23, 42, .08);
}

@media (max-width: 820px) {
    .exam-hero {
        grid-template-columns: 1fr;
        padding: 16px;
    }

    .marks-control-card,
    .exam-control-card {
        align-items: stretch;
    }
}

.hidden {
    display: none !important;
}

.loader-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #4F46E5;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #333;
    color: #fff;
    padding: 12px 24px;
    border-radius: 6px;
    z-index: 10000;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.toast.show {
    opacity: 1;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.stat-box {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.stat-label {
    font-size: 0.85rem;
    color: #64748b;
    margin-bottom: 5px;
    text-transform: uppercase;
    font-weight: 600;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a;
}

.flex-row {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.flex-col {
    display: flex;
    flex-direction: column;
}

.gap-3 { gap: 1rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }

.selectable-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 250px;
    overflow-y: auto;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
}

.selectable-list li {
    padding: 10px 15px;
    border-bottom: 1px solid #e2e8f0;
    cursor: pointer;
    transition: background 0.2s;
    display: flex;
    justify-content: space-between;
}

.selectable-list li:last-child {
    border-bottom: none;
}

.selectable-list li:hover {
    background: #f1f5f9;
}

.selectable-list li.selected {
    background: #4F46E5;
    color: white;
}

.text-success { color: #10b981 !important; }
.text-danger { color: #ef4444 !important; }

.ag-theme-quartz-dark {
    --ag-background-color: #0f172a;
    --ag-header-background-color: #1e293b;
    --ag-header-foreground-color: #f8fafc;
    --ag-data-color: #f8fafc;
    --ag-odd-row-background-color: #111827;
    --ag-row-hover-color: #1e293b;
    --ag-border-color: #334155;
    --ag-secondary-border-color: #1e293b;
    --ag-font-family: 'Inter', sans-serif;
    --ag-border-radius: 12px;
    
    border: 1px solid #334155 !important;
    border-radius: 12px;
    overflow: hidden;
    height: 600px; /* Explicit height ensures it shows up in flex containers */
}

.ag-theme-quartz-dark .ag-header-cell-label {
    font-weight: 600;
    justify-content: center;
}

.ag-theme-quartz-dark .ag-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid #1e293b !important;
}

.ag-theme-quartz-dark .ag-pinned-left-cols-container .ag-cell {
    justify-content: flex-start;
    padding-left: 15px;
}

.grid-container {
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    border: 1px solid #e2e8f0;
    border-radius: 8px;
}

.action-bar {
    display: flex;
    gap: 10px;
}

/* ============================================================
   READABILITY OVERRIDES
   Keeps Mastering Exams / Mastering Marks usable on server themes.
   ============================================================ */
body {
    color: #0f172a;
}

.top-nav,
.pane-header,
.flat-card,
.settings-card,
.card-header,
.card-body,
.filter-bar,
.grid-body-container,
.action-bar {
    color: #0f172a;
}

.top-nav {
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid #dbeafe;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.top-nav h2,
.pane-header h2,
.settings-card h3,
.card-header h3,
.filter-group label {
    color: #0f172a !important;
}

.pane-header p,
.text-secondary,
.filter-group span,
.empty-state {
    color: #475569 !important;
}

.nav-link {
    color: #1e293b !important;
    background: rgba(241, 245, 249, 0.86);
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 0.55rem 0.8rem;
    font-weight: 700;
}

.nav-link:hover {
    color: #1d4ed8 !important;
    background: #eff6ff;
    border-color: #bfdbfe;
}

.flat-card,
.settings-card {
    background: linear-gradient(180deg, #ffffff, #f8fbff);
    border: 1px solid #dbeafe;
}

.filter-group select,
.filter-group input,
.settings-card select,
.settings-card input,
.add-input,
.form-control {
    min-height: 44px;
    color: #0f172a !important;
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    border-radius: 12px;
    padding: 0 12px;
    font-weight: 700;
    outline: none;
}

.filter-group select:focus,
.filter-group input:focus,
.settings-card select:focus,
.settings-card input:focus,
.add-input:focus,
.form-control:focus {
    border-color: #3b82f6 !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.18);
}

select option {
    color: #0f172a;
    background: #ffffff;
}

.btn,
button.btn {
    color: #ffffff !important;
    border: 0;
    border-radius: 12px;
    min-height: 42px;
    padding: 0 16px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.14);
}

.btn-primary,
button.btn-primary {
    background: linear-gradient(135deg, #2563eb, #4f46e5) !important;
}

.btn-secondary,
button.btn-secondary {
    background: linear-gradient(135deg, #475569, #1e293b) !important;
}

.btn-success,
button.btn-success {
    background: linear-gradient(135deg, #059669, #047857) !important;
}

.btn-sm {
    min-height: 36px;
    padding: 0 12px;
}

.selectable-list {
    background: #ffffff;
    border-color: #dbeafe;
}

.selectable-list li {
    color: #0f172a;
    background: #ffffff;
    align-items: center;
    gap: 10px;
}

.selectable-list li:hover {
    color: #1d4ed8;
    background: #eff6ff;
}

.selectable-list li.selected {
    background: linear-gradient(135deg, #2563eb, #4f46e5);
    color: #ffffff;
}

.data-table,
.styled-table {
    color: #0f172a;
    background: #ffffff;
}

.data-table th,
.styled-table th {
    color: #0f172a;
    background: #e0f2fe;
}

.data-table td,
.styled-table td {
    color: #0f172a;
    background: #ffffff;
}

.ag-theme-quartz-dark {
    --ag-foreground-color: #f8fafc;
    --ag-data-color: #f8fafc;
    --ag-header-foreground-color: #ffffff;
    --ag-input-text-color: #0f172a;
    --ag-input-focus-border-color: #60a5fa;
}