/* Admin Dashboard Styling — ExamGenius Theme */

.admin-dashboard {
    display: flex;
    /* Fill the visible area within the app layout
       top-bar ~70px + content-area padding 48px = 118px; use 130px as safe buffer */
    min-height: calc(100vh - 130px);
    background-color: var(--bg-light, #FAFAFA);
    border-radius: var(--radius-md, 12px);
    overflow: hidden;
}

/* When admin is nested inside createAppLayout, adjust the content area */
#admin-container {
    margin: -24px; /* cancel the content-area padding so admin fills edge-to-edge */
}

/* ── Sidebar Nav ── */
.admin-nav {
    width: 250px;
    background-color: #1a1a2e;
    color: white;
    padding: 0;
    overflow-y: auto;
    box-shadow: 2px 0 8px rgba(0,0,0,0.15);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.admin-nav-header {
    padding: 20px 16px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-bottom: 3px solid var(--primary-yellow, #FFC107);
    text-align: center;
}

.admin-nav-header h2 {
    margin: 0;
    font-size: 1.15em;
    color: var(--primary-yellow, #FFC107);
    font-weight: 700;
    letter-spacing: 0.5px;
}

.admin-nav-menu {
    list-style: none;
    padding: 8px 0;
    margin: 0;
    flex: 1;
}

.admin-nav-menu li {
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.admin-nav-menu a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 13px 20px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    font-size: 0.9em;
}

.admin-nav-menu a:hover {
    background-color: rgba(255,193,7,0.08);
    color: #fff;
    border-left-color: rgba(255,193,7,0.4);
}

.admin-nav-menu a.active {
    background: rgba(255,193,7,0.12);
    color: var(--primary-yellow, #FFC107);
    border-left-color: var(--primary-yellow, #FFC107);
    font-weight: 600;
}

/* ── Main Content Area ── */
.admin-content {
    flex: 1;
    overflow-y: auto;
    padding: 28px 32px;
}

.admin-dashboard-content {
    max-width: 1200px;
}

.admin-dashboard-content h3 {
    color: var(--text-primary, #212121);
    margin-bottom: 20px;
    font-size: 1.3em;
}

/* ── Stat Cards ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: #fff;
    padding: 22px 20px;
    border-radius: var(--radius-md, 12px);
    box-shadow: var(--shadow-sm, 0 2px 4px rgba(0,0,0,0.08));
    text-align: center;
    border-top: 3px solid var(--primary-yellow, #FFC107);
    transition: box-shadow 0.2s;
}

.stat-card:hover {
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0,0,0,0.12));
}

.stat-number {
    font-size: 2.4em;
    font-weight: 800;
    color: var(--primary-yellow-dark, #FFA000);
    margin-bottom: 6px;
    line-height: 1;
}

.stat-label {
    font-size: 0.9em;
    color: var(--text-secondary, #757575);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-subtext {
    font-size: 0.8em;
    color: #aaa;
    margin-top: 6px;
}

/* ── Section Panels ── */
.admin-section {
    background: #fff;
    padding: 24px;
    border-radius: var(--radius-md, 12px);
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm, 0 2px 4px rgba(0,0,0,0.08));
    border: 1px solid var(--border-color, #E0E0E0);
}

.admin-section h4 {
    color: var(--text-primary, #212121);
    margin-top: 0;
    margin-bottom: 18px;
    border-bottom: 2px solid var(--primary-yellow-light, #FFECB3);
    padding-bottom: 10px;
    font-size: 1em;
}

/* Loading / error states */
.admin-loading {
    color: var(--text-secondary, #757575);
    padding: 16px 0;
    font-size: 0.95em;
}

.admin-error {
    color: var(--error, #F44336);
    padding: 16px 0;
    font-size: 0.95em;
    font-weight: 500;
}

/* ── Forms ── */
.admin-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.admin-form-inline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary, #212121);
    margin-bottom: 5px;
    font-size: 0.88em;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px 12px;
    border: 1.5px solid var(--border-color, #E0E0E0);
    border-radius: var(--radius-sm, 8px);
    font-size: 0.95em;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-yellow, #FFC107);
    box-shadow: 0 0 0 3px var(--primary-yellow-light, #FFECB3);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

/* ── Table ── */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 8px;
    font-size: 0.92em;
}

.admin-table thead {
    background: linear-gradient(135deg, var(--primary-yellow-light, #FFECB3), #fff9e0);
}

.admin-table th,
.admin-table td {
    padding: 11px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color, #E0E0E0);
}

.admin-table th {
    font-weight: 700;
    color: var(--primary-yellow-dark, #FFA000);
    text-transform: uppercase;
    font-size: 0.8em;
    letter-spacing: 0.5px;
}

.admin-table tr:hover {
    background-color: #fffdf0;
}

/* ── Misc ── */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
}

.tab-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.progress-bar {
    width: 100%;
    height: 16px;
    background-color: var(--primary-yellow-light, #FFECB3);
    border-radius: 8px;
    overflow: hidden;
    margin: 10px 0;
}

#progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-yellow, #FFC107), var(--primary-yellow-dark, #FFA000));
    transition: width 0.4s ease;
}

.access-denied {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    padding: 40px;
}

.access-denied h2 {
    font-size: 2em;
    color: var(--error, #F44336);
    margin-bottom: 16px;
}

.access-denied p {
    font-size: 1.1em;
    color: var(--text-secondary, #757575);
    margin-bottom: 28px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .admin-dashboard {
        flex-direction: column;
        min-height: auto;
    }

    /* Cancel the negative margin on mobile so panel sits nicely */
    #admin-container {
        margin: -16px -12px;
    }

    .admin-nav {
        width: 100%;
        height: auto;
        max-height: none;
        flex-direction: row;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .admin-nav-header {
        min-width: 140px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .admin-nav-menu {
        display: flex;
        flex-direction: row;
        padding: 0;
    }

    .admin-nav-menu li {
        border-bottom: none;
        border-right: 1px solid rgba(255,255,255,0.1);
    }

    .admin-nav-menu a {
        padding: 10px 14px;
        white-space: nowrap;
        border-left: none;
        border-bottom: 3px solid transparent;
    }

    .admin-nav-menu a.active {
        border-left: none;
        border-bottom-color: var(--primary-yellow, #FFC107);
    }

    .admin-content {
        padding: 16px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .admin-form-inline,
    .form-row {
        grid-template-columns: 1fr;
    }

    .quick-actions {
        grid-template-columns: 1fr;
    }

    .admin-table {
        font-size: 0.85em;
    }

    .admin-table th,
    .admin-table td {
        padding: 8px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 2em;
    }
}