/* ========================================
   Teacher Dashboard Styles
   ======================================== */

/* ========================================
   Teacher Menu
   ======================================== */

.teacher-menu {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    box-shadow: var(--shadow-sm);
}

.teacher-menu-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.5rem;
}

.teacher-menu-item {
    margin: 0;
}

.teacher-menu-link {
    display: block;
    padding: 1rem 1.5rem;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    border-radius: var(--radius-md);
    position: relative;
}

.teacher-menu-link:hover {
    color: var(--color-white);
    background-color: rgba(255, 255, 255, 0.1);
}

.teacher-menu-link.active {
    color: var(--color-white);
    background-color: rgba(255, 255, 255, 0.15);
}

.teacher-menu-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background-color: var(--color-white);
    border-radius: 3px 3px 0 0;
}

.teacher-dashboard-content {
    padding: 3rem 0;
}

/* ========================================
   Welcome Section
   ======================================== */

.welcome-section {
    margin-bottom: 3rem;
}

.welcome-header {
    margin-bottom: 2rem;
}

.welcome-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.welcome-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
}

/* ========================================
   Stats Cards
   ======================================== */

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    flex-shrink: 0;
}

.stat-icon-students {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.stat-icon-exams {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
}

.stat-icon-avg {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
}

.stat-icon-completion {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
}

/* ========================================
   Dashboard Section
   ======================================== */

.dashboard-section {
    margin-bottom: 4rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
}

.section-actions {
    display: flex;
    gap: 1rem;
}

.btn-secondary-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-secondary-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: rgba(88, 96, 197, 0.05);
}

.btn-primary-small {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
    border: none;
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-white);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary-small:hover {
    background: linear-gradient(135deg, var(--color-secondary-light), var(--color-secondary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Students Table
   ======================================== */

.table-wrapper {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.students-table {
    width: 100%;
    border-collapse: collapse;
}

.students-table thead {
    background: var(--color-gray-100);
}

.students-table th {
    padding: 1rem 1.25rem;
    text-align: left;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.students-table tbody tr {
    border-bottom: 1px solid var(--color-gray-200);
    transition: background-color 0.2s ease;
}

.students-table tbody tr:last-child {
    border-bottom: none;
}

.students-table tbody tr:hover {
    background-color: var(--color-gray-100);
}

.students-table td {
    padding: 1.25rem;
    font-size: 0.95rem;
    color: var(--color-text);
    vertical-align: middle;
}

/* Student Name Cell */
.student-name-cell {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.student-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.95rem;
    flex-shrink: 0;
}

.student-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.student-name {
    font-weight: 600;
    color: var(--color-text);
}

.student-id {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* Progress Bar */
.completion-text {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    display: block;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--color-gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* Score Badges */
.score-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
}

.score-excellent {
    background-color: #d1fae5;
    color: #065f46;
}

.score-good {
    background-color: #dbeafe;
    color: #1e40af;
}

.score-average {
    background-color: #fef3c7;
    color: #92400e;
}

.score-poor {
    background-color: #fee2e2;
    color: #991b1b;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
}

.status-active {
    background-color: #d1fae5;
    color: #065f46;
}

.status-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.status-inactive {
    background-color: #fee2e2;
    color: #991b1b;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    background: transparent;
    color: var(--color-primary);
}

.btn-icon:hover {
    background-color: var(--color-gray-100);
    color: var(--color-primary-dark);
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

/* ========================================
   Activity List
   ======================================== */

.activity-list {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.25rem;
    border-bottom: 1px solid var(--color-gray-200);
    transition: background-color 0.2s ease;
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-item:hover {
    background-color: var(--color-gray-100);
    border-radius: var(--radius-md);
}

.activity-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-icon-completed {
    background-color: #d1fae5;
    color: #065f46;
}

.activity-icon-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-size: 0.95rem;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.activity-title strong {
    font-weight: 600;
    color: var(--color-text);
}

.activity-meta {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.btn-view-result {
    padding: 0.625rem 1.25rem;
    background: transparent;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-view-result:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 968px) {
    .welcome-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .section-actions {
        width: 100%;
        flex-direction: column;
    }

    .btn-secondary-outline,
    .btn-primary-small {
        width: 100%;
        justify-content: center;
    }

    .table-wrapper {
        overflow-x: auto;
    }

    .students-table {
        min-width: 900px;
    }
}

@media (max-width: 640px) {
    .teacher-menu-list {
        flex-direction: column;
        gap: 0;
    }

    .teacher-menu-link {
        padding: 0.875rem 1rem;
        font-size: 0.9rem;
    }

    .teacher-menu-link.active::after {
        display: none;
    }

    .teacher-dashboard-content {
        padding: 2rem 0;
    }

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

    .welcome-title {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .activity-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .btn-view-result {
        width: 100%;
    }
}