body {
    min-height: 100vh;
}

.app-shell {
    min-height: 100vh;
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

.hidden {
    display: none !important;
}

.auth-container {
    width: 100%;
    max-width: 560px;
    margin: 0 auto;
}

.auth-header,
.auth-links {
    text-align: center;
}

.dashboard {
    width: 100%;
}

.dashboard-header,
.section-title-row,
.course-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.dashboard-header {
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--bs-border-color);
    margin-bottom: 1rem;
}

.header-left h1 {
    margin: 0;
}

.header-right,
.course-actions {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-wrap: wrap;
}

.dashboard-nav {
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

.dashboard-main {
    padding-bottom: 2rem;
}

.section-title-row {
    margin-bottom: 1rem;
}

.filters-row {
    display: grid;
    grid-template-columns: 1fr 220px 220px;
    gap: .75rem;
    margin: 1rem 0;
}

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

.form-container,
.records-panel,
.model-menu,
.course-card,
.empty-state,
.loading,
.error,
.profile-grid div {
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.course-card {
    cursor: pointer;
}

.course-info {
    display: grid;
    gap: .35rem;
    margin-top: .75rem;
}

.btn-small {
    padding: .375rem .75rem;
    font-size: .875rem;
}

.status-chip {
    display: inline-block;
    padding: .35em .65em;
    border-radius: var(--bs-border-radius-pill);
    background: var(--bs-primary);
    color: var(--bs-white);
    font-size: .75em;
}

.role-admin {
    background: var(--bs-danger);
}

.role-instructor {
    background: var(--bs-warning);
    color: var(--bs-dark);
}

.role-socio {
    background: var(--bs-success);
}

.stat-row + .stat-row {
    margin-top: .75rem;
}

.stat-row .progress {
    height: .5rem;
}

.data-table {
    width: 100%;
    margin-bottom: 0;
}

.data-table th,
.data-table td {
    padding: .75rem;
    border-bottom: 1px solid var(--bs-border-color);
    white-space: nowrap;
}

.management-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 1rem;
    align-items: start;
}

.model-workspace,
.profile-grid {
    display: grid;
    gap: 1rem;
}

.profile-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.profile-grid span {
    display: block;
    color: var(--bs-secondary-color);
    font-size: .875rem;
}

.model-help,
.course-info,
.course-card p,
.section-title-row p {
    color: var(--bs-secondary-color);
}

.model-check {
    padding-top: 2rem;
}

.form-select[multiple] {
    min-height: 132px;
}

.class-photo {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: var(--bs-border-radius);
    margin-bottom: .75rem;
}

.user-detail-photo {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--bs-border-color);
}

.user-detail-photo-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bs-secondary-bg);
    color: var(--bs-secondary-color);
}

.help-content {
    max-width: 1100px;
}

.help-image {
    max-height: 320px;
    object-fit: contain;
    background: var(--bs-light);
    border-bottom: 1px solid var(--bs-border-color);
}

.error {
    color: var(--bs-danger);
}

@media (max-width: 768px) {
    .dashboard-header,
    .section-title-row {
        flex-direction: column;
    }

    .filters-row,
    .management-layout {
        grid-template-columns: 1fr;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }
}