/* Shared app shell — iVirtuo Admin */

.app-layout {
    display: flex;
    min-height: 100vh;
    background:
        radial-gradient(circle at top right, color-mix(in srgb, var(--accent) 12%, transparent), transparent 42%),
        linear-gradient(
            160deg,
            var(--bg) 0%,
            color-mix(in srgb, var(--primary-light) 18%, var(--bg)) 100%
        );
}

.app-sidebar-overlay {
    display: none;
}

.app-sidebar {
    width: 300px;
    flex-shrink: 0;
    background: var(--white);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 120;
    box-shadow: var(--shadow-sm);
}

.app-sidebar-top {
    padding: 1.5rem 1.25rem 1.1rem;
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.app-sidebar-logo {
    display: inline-flex;
    justify-content: center;
    text-decoration: none;
}

.app-sidebar-logo img {
    width: 132px;
    height: auto;
    transition: transform 0.2s ease;
}

.app-sidebar-logo:hover img {
    transform: scale(1.03);
}

.app-sidebar-brand {
    margin: 0.75rem 0 0;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary-dark);
}

.app-sidebar-nav {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.35rem;
    flex: 1;
    overflow-y: auto;
}

.app-nav-group {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.app-nav-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.app-nav-link {
    text-decoration: none;
    color: var(--text);
    background: var(--bg);
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    border: 1px solid transparent;
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.app-nav-link:hover,
.app-nav-link.is-active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    transform: translateX(3px);
    border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.app-sidebar-bottom {
    padding: 1.25rem;
    border-top: 1px solid var(--border);
}

.app-logout-btn {
    display: block;
    text-align: center;
    text-decoration: none;
    background: var(--danger-soft);
    color: var(--danger);
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--danger-border);
    font-weight: 600;
    transition: background 0.2s ease, color 0.2s ease;
}

.app-logout-btn:hover {
    background: var(--danger);
    color: var(--white);
}

.app-main-wrap {
    flex: 1;
    min-width: 0;
    position: relative;
}

.app-menu-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 140;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
}

.app-menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--primary-dark);
    border-radius: 999px;
}

.app-page {
    padding: 2rem 2.25rem 2.5rem;
    min-width: 0;
    max-width: 100%;
    overflow-x: hidden;
}

.app-page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.25rem;
    margin-bottom: 1.75rem;
}

.app-page-header h1 {
    margin: 0 0 0.4rem;
    font-size: clamp(1.7rem, 2.4vw, 2.25rem);
    color: var(--primary-dark);
}

.app-page-header p {
    margin: 0;
    color: var(--text-muted);
}

.app-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.btn,
.primary-btn,
.topbar-action-btn,
.refresh-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    border: none;
    border-radius: var(--radius-md);
    padding: 0.75rem 1.1rem;
    font-weight: 650;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary,
.primary-btn,
.topbar-action-btn,
.refresh-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover,
.primary-btn:hover,
.topbar-action-btn:hover,
.refresh-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: var(--white);
}

.btn-outline,
.topbar-action-btn-outline,
.refresh-btn-outline {
    background: var(--white);
    color: var(--primary-dark);
    border: 1px solid var(--border);
}

.btn-outline:hover,
.topbar-action-btn-outline:hover,
.refresh-btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.app-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.25rem;
}

.app-card {
    display: block;
    text-decoration: none;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.app-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: color-mix(in srgb, var(--accent) 40%, var(--primary));
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.app-card h3 {
    margin: 0 0 0.65rem;
    color: var(--text);
    font-size: 1.25rem;
}

.app-card p {
    margin: 0;
    color: var(--text-muted);
    line-height: 1.55;
}

.app-card:hover h3,
.app-card:hover p {
    color: var(--white);
}

.app-alert {
    margin-bottom: 1.25rem;
    padding: 0.95rem 1.1rem;
    border-radius: var(--radius-md);
    background: var(--danger-soft);
    color: var(--danger);
    border: 1px solid var(--danger-border);
    font-weight: 600;
}

.refresh-progress-eta {
    margin: 0.65rem 0 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.refresh-progress-requests {
    margin: 0.4rem 0 0;
    color: var(--primary-dark);
    font-size: 0.9rem;
    font-weight: 600;
}

.data-table,
.students-table {
    width: max-content;
    min-width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius-md);
    table-layout: auto;
}

.table-scroll,
.table-wrapper {
    display: block;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
}

.data-table th,
.students-table th,
.data-table td,
.students-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border);
    text-align: left;
    white-space: nowrap;
}

.data-table th,
.students-table th {
    background: color-mix(in srgb, var(--primary) 8%, var(--white));
    color: var(--primary-dark);
    font-size: 0.85rem;
    letter-spacing: 0.02em;
}

@media (max-width: 980px) {
    .app-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        transform: translateX(0);
        transition: transform 0.25s ease;
    }

    .app-layout.sidebar-closed .app-sidebar {
        transform: translateX(-105%);
    }

    .app-sidebar-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.45);
        z-index: 110;
        opacity: 1;
        transition: opacity 0.2s ease;
    }

    .app-layout.sidebar-closed .app-sidebar-overlay {
        opacity: 0;
        pointer-events: none;
    }

    .app-menu-toggle {
        display: inline-flex;
    }

    .app-page {
        padding: 4.5rem 1.15rem 1.75rem;
    }

    .app-page-header {
        flex-direction: column;
    }
}