/* Modern Dashboard Styles */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border-color: #334155;
}

.modern-dashboard {
    font-family: var(--font-family);
    background: var(--bg-secondary);
    min-height: 100vh;
    color: var(--text-primary);
}

/* Header Styles */
.dashboard-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 0;
}

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

.header-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: var(--shadow-md);
}

.brand-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
}

.brand-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.school-year-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-section {
    position: relative;
}

.search-input-wrapper {
    position: relative;
    width: 320px;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    margin-top: 0.25rem;
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
}

.search-result-item {
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    background: none;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition);
    cursor: pointer;
}

.search-result-item:hover {
    background: var(--bg-secondary);
}

.search-result-item i {
    color: var(--text-muted);
    font-size: 1rem;
}

.result-content {
    flex: 1;
}

.result-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.result-subtitle {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle,
.refresh-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.theme-toggle:hover,
.refresh-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.refresh-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.spinning {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Main Content */
.dashboard-main {
    padding: 2rem 0;
}

.date-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.date-selector {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.nav-btn:hover:not(:disabled) {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.date-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.date-input {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.today-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius);
    background: var(--primary-color);
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.today-btn:hover {
    background: var(--primary-dark);
}

.quick-stats {
    display: flex;
    gap: 2rem;
}

.quick-stat {
    text-align: center;
}

.quick-stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.quick-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.metric-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.metric-card.primary {
    border-left: 4px solid var(--primary-color);
}

.metric-card.success {
    border-left: 4px solid var(--success-color);
}

.metric-card.warning {
    border-left: 4px solid var(--warning-color);
}

.metric-card.info {
    border-left: 4px solid var(--info-color);
}

.metric-card.danger {
    border-left: 4px solid var(--danger-color);
}

.metric-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.metric-card.primary .metric-icon {
    background: rgb(37 99 235 / 0.1);
    color: var(--primary-color);
}

.metric-card.success .metric-icon {
    background: rgb(16 185 129 / 0.1);
    color: var(--success-color);
}

.metric-card.warning .metric-icon {
    background: rgb(245 158 11 / 0.1);
    color: var(--warning-color);
}

.metric-card.info .metric-icon {
    background: rgb(6 182 212 / 0.1);
    color: var(--info-color);
}

.metric-card.danger .metric-icon {
    background: rgb(239 68 68 / 0.1);
    color: var(--danger-color);
}

.metric-title {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.metric-change {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.metric-change.positive {
    color: var(--success-color);
}

.metric-change.negative {
    color: var(--danger-color);
}

.metric-trend {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 100px;
    height: 60px;
    opacity: 0.1;
}

.trend-line {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--primary-color);
    transition: var(--transition);
}

.trend-line.warning {
    background: var(--warning-color);
}

.trend-line.danger {
    background: var(--danger-color);
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
}

.content-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
}

.content-card:hover {
    box-shadow: var(--shadow-md);
}

.chart-card {
    grid-column: span 8;
}

.content-card:not(.chart-card) {
    grid-column: span 4;
}

.card-header {
    padding: 1.5rem 1.5rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-title i {
    color: var(--text-secondary);
}

.card-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-link {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-link:hover {
    color: var(--primary-dark);
}

.card-content {
    padding: 1.5rem;
}

.chart-container {
    height: 300px;
}

/* Course List */
.course-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.course-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.course-item:hover {
    background: var(--bg-tertiary);
}

.course-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.course-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.course-details {
    flex: 1;
}

.course-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.course-code {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.course-stats {
    text-align: right;
}

.attendance-rate {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.progress-bar {
    width: 80px;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.progress-bar.small {
    width: 60px;
}

.progress-fill {
    height: 100%;
    background: var(--primary-color);
    transition: var(--transition);
}

.student-count {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* Activity List */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.activity-item:hover {
    background: var(--bg-tertiary);
}

.activity-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

.activity-icon.success {
    background: rgb(16 185 129 / 0.1);
    color: var(--success-color);
}

.activity-icon.warning {
    background: rgb(245 158 11 / 0.1);
    color: var(--warning-color);
}

.activity-icon.danger {
    background: rgb(239 68 68 / 0.1);
    color: var(--danger-color);
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.activity-time {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.status-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.status-badge.completed {
    background: rgb(16 185 129 / 0.1);
    color: var(--success-color);
}

.status-badge.pending {
    background: rgb(245 158 11 / 0.1);
    color: var(--warning-color);
}

.status-badge.overdue {
    background: rgb(239 68 68 / 0.1);
    color: var(--danger-color);
}

/* Missing Attendance */
.alert-card {
    border-left: 4px solid var(--warning-color);
}

.alert-count {
    background: var(--warning-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.missing-attendance-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.missing-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgb(245 158 11 / 0.05);
    border: 1px solid rgb(245 158 11 / 0.2);
    border-radius: var(--border-radius);
}

.missing-time {
    text-align: center;
    min-width: 80px;
}

.period {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.time {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.missing-details {
    flex: 1;
}

.course-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.module-name {
    color: var(--text-secondary);
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
}

.teacher-name {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.btn-mark {
    background: var(--warning-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.btn-mark:hover {
    background: rgb(217 119 6);
}

.show-more {
    text-align: center;
    padding: 1rem;
}

.no-missing {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.no-missing i {
    font-size: 3rem;
    color: var(--success-color);
    margin-bottom: 1rem;
}

.no-missing h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Leaderboard */
.student-leaderboard {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.leaderboard-item:hover {
    background: var(--bg-tertiary);
}

.rank {
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.student-info {
    flex: 1;
}

.student-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.student-course {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.attendance-score {
    text-align: right;
}

.score {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

/* Schedule */
.schedule-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.schedule-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.schedule-item.completed {
    background: rgb(16 185 129 / 0.05);
    border: 1px solid rgb(16 185 129 / 0.2);
}

.schedule-item.pending {
    background: rgb(245 158 11 / 0.05);
    border: 1px solid rgb(245 158 11 / 0.2);
}

.schedule-time {
    text-align: center;
    min-width: 80px;
}

.schedule-details {
    flex: 1;
}

.schedule-status {
    min-width: 100px;
    text-align: right;
}

.no-classes {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.no-classes i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.no-classes h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .chart-card {
        grid-column: span 12;
    }
    
    .content-card:not(.chart-card) {
        grid-column: span 6;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .header-left {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .search-input-wrapper {
        width: 100%;
    }
    
    .date-navigation {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .quick-stats {
        justify-content: center;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .content-card {
        grid-column: span 1 !important;
    }
    
    .missing-item {
        flex-direction: column;
        text-align: center;
    }
    
    .schedule-item {
        flex-direction: column;
        text-align: center;
    }
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.metric-card,
.content-card {
    animation: fadeIn 0.5s ease-out;
}

/* Focus States */
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .dashboard-header,
    .date-navigation,
    .btn-mark,
    .btn-link,
    .header-actions {
        display: none !important;
    }
    
    .modern-dashboard {
        background: white !important;
        color: black !important;
    }
    
    .content-card {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
}