* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-color: #f1f5f9;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --border-color: #cbd5e1;
    --shadow: 0 2px 8px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 16px -4px rgba(0, 0, 0, 0.12), 0 4px 8px -4px rgba(0, 0, 0, 0.07);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Header */
header {
    background: var(--primary-color);
    color: white;
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Container */
.container {
    padding: 2rem;
    max-width: 1600px;
    margin: 0 auto;
}

/* Filters Section */
.filters {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-group select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    background-color: var(--card-bg);
    cursor: pointer;
    transition: all 0.3s;
    min-width: 180px;
}

.filter-group select:hover {
    border-color: var(--primary-color);
}

.filter-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* KPI Cards */
.kpi-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    border-left: 4px solid var(--primary-color);
}

.kpi-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.kpi-card.success {
    border-left-color: var(--success-color);
}

.kpi-card.warning {
    border-left-color: var(--warning-color);
}

.kpi-card.danger {
    border-left-color: var(--danger-color);
}

.kpi-card h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.kpi-card .value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.kpi-card .change {
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

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

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

/* Charts Section */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.chart-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.chart-card.full-width {
    grid-column: 1 / -1;
}

.chart-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.chart-card h3::before {
    content: "";
    width: 4px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 2px;
}

.chart-container {
    position: relative;
    height: 350px;
    width: 100%;
}

.chart-container.large {
    height: 400px;
}

/* Tables */
.table-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.table-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.table-card h3::before {
    content: "";
    width: 4px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 2px;
}

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

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

.data-table th {
    background-color: var(--bg-color);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.data-table tr:hover {
    background-color: var(--bg-color);
}

.data-table .positive {
    color: var(--success-color);
    font-weight: 600;
}

.data-table .negative {
    color: var(--danger-color);
    font-weight: 600;
}

.data-table .badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.data-table .badge.high {
    background-color: #fee2e2;
    color: var(--danger-color);
}

.data-table .badge.medium {
    background-color: #fef3c7;
    color: var(--warning-color);
}

.data-table .badge.low {
    background-color: #d1fae5;
    color: var(--success-color);
}

/* Action Buttons */
.actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: flex-end;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: white;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-color);
    border-color: var(--primary-color);
}

/* Alert Cards */
.alert-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    border-left: 4px solid var(--warning-color);
}

.alert-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-item {
    padding: 0.75rem;
    border-radius: 8px;
    background-color: var(--bg-color);
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.alert-item .badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.alert-item .badge.high {
    background-color: #fee2e2;
    color: var(--danger-color);
}

.alert-item .badge.medium {
    background-color: #fef3c7;
    color: var(--warning-color);
}

/* AI Insights Card */
#aiInsightsCard {
    background: var(--secondary-color);
    color: white;
}

#aiInsightsCard h3 {
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#aiInsightsCard h3::before {
    background: white;
}

.ai-insight-item {
    padding: 1.25rem;
    border-radius: 12px;
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
}

.ai-insight-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.ai-insight-item h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
}

.ai-insight-item p {
    margin: 0;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.6;
    font-size: 0.95rem;
}

.ai-insight-item .priority {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.ai-insight-item .priority.high {
    background-color: var(--danger-color);
    color: white;
}

.ai-insight-item .priority.medium {
    background-color: var(--warning-color);
    color: white;
}

.ai-insight-item .priority.low {
    background-color: var(--success-color);
    color: white;
}

.ai-insight-item .recommendations {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
}

.ai-insight-item .recommendations strong {
    color: #fbbf24;
    font-weight: 600;
}

.ai-insight-item ul {
    margin: 0.5rem 0 0 0;
    padding-left: 1.5rem;
    list-style-type: none;
}

.ai-insight-item ul li {
    margin-bottom: 0.5rem;
    position: relative;
    color: rgba(255, 255, 255, 0.95);
}

.ai-insight-item ul li::before {
    content: "✓";
    position: absolute;
    left: -1.5rem;
    color: var(--success-color);
    font-weight: bold;
}

/* Student Search Styles */
.search-container {
    position: relative;
}

#studentSearch:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.search-results.active {
    display: block;
}

.search-result-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.3s;
}

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

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

.search-result-item .name {
    font-weight: 600;
    color: var(--text-primary);
}

.search-result-item .info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.search-result-item .badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-left: 0.5rem;
}

.search-result-item .badge.avancado {
    background-color: #d1fae5;
    color: var(--success-color);
}

.search-result-item .badge.adequado {
    background-color: #dbeafe;
    color: var(--primary-color);
}

.search-result-item .badge.basico {
    background-color: #fef3c7;
    color: var(--warning-color);
}

.search-result-item .badge.abaixo {
    background-color: #fee2e2;
    color: var(--danger-color);
}

/* Student Details Styles */
.student-details {
    margin-top: 2rem;
    animation: fadeIn 0.5s ease-out;
}

.student-header {
    background: var(--primary-color);
    color: white;
    padding: 2rem;
    border-radius: 12px 12px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.student-header .name {
    font-size: 1.8rem;
    font-weight: 700;
}

.student-header .meta {
    font-size: 0.95rem;
    opacity: 0.9;
}

.student-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 0 0 12px 12px;
    border: 2px solid var(--border-color);
    border-top: none;
}

.student-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.student-stat-card {
    background: var(--bg-color);
    padding: 1.25rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.student-stat-card h4 {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

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

.student-stat-card.success {
    border-left-color: var(--success-color);
}

.student-stat-card.warning {
    border-left-color: var(--warning-color);
}

.student-stat-card.danger {
    border-left-color: var(--danger-color);
}

.grades-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.grade-card {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
}

.grade-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.grade-card .media {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.grade-card .grade-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.grade-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: var(--card-bg);
    border-radius: 4px;
    font-size: 0.9rem;
}

.grade-item .bimestre {
    color: var(--text-secondary);
}

.grade-item .nota {
    font-weight: 600;
    color: var(--text-primary);
}

.ai-student-intervention {
    background: var(--warning-color);
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 2rem;
}

.ai-student-intervention h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ai-student-intervention ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ai-student-intervention li {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.ai-student-intervention li:last-child {
    border-bottom: none;
}

.ai-student-intervention li::before {
    content: "💡";
    font-size: 1.2rem;
}

/* Responsive */
@media (max-width: 1200px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    header {
        padding: 1rem;
    }

    header h1 {
        font-size: 1.4rem;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-group select {
        min-width: 100%;
    }

    .kpi-container {
        grid-template-columns: 1fr;
    }

    .actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .data-table {
        font-size: 0.85rem;
    }

    .data-table th,
    .data-table td {
        padding: 0.5rem;
    }
}

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

.kpi-card,
.chart-card,
.table-card,
.alert-card {
    animation: fadeIn 0.5s ease-out;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
    box-shadow: var(--shadow);
}

footer p {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 500;
    opacity: 0.95;
}

/* ============================================
   ANÁLISE COM IA (SIMULAÇÃO)
   ============================================ */

.ai-sim-badge {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    font-size: 0.6rem;
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    vertical-align: middle;
    margin-left: 0.5rem;
}

.ai-sim-intro {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem 1.25rem;
    background: var(--bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.ai-sim-intro p {
    flex: 1;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.ai-progress-container {
    height: 8px;
    background: var(--border-color);
    border-radius: 9999px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.ai-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 9999px;
    transition: width 0.5s ease;
}

.ai-steps-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.ai-step {
    padding: 0.9rem 1.2rem;
    background: var(--bg-color);
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.ai-step.visible {
    opacity: 1;
    transform: translateY(0);
}

.ai-step .step-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
    margin-top: 0.05rem;
}

.ai-step .step-content {
    flex: 1;
}

.ai-step .step-content h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
}

.ai-step .step-content p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin: 0;
}

.ai-step-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: ai-spin 0.7s linear infinite;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.ai-step-check {
    color: var(--success-color);
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 0.15rem;
    font-weight: 700;
}

@keyframes ai-spin {
    to { transform: rotate(360deg); }
}

.ai-conclusion {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.07), rgba(118, 75, 162, 0.07));
    border: 1px solid rgba(102, 126, 234, 0.25);
    border-radius: 12px;
}

.ai-conclusion h4 {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ai-conclusion-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.65rem;
    padding: 0.8rem 1rem;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.ai-conclusion-item .label {
    font-weight: 700;
    font-size: 0.72rem;
    padding: 0.2rem 0.55rem;
    border-radius: 4px;
    flex-shrink: 0;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-top: 0.1rem;
}

.ai-conclusion-item .label.critico {
    background: #fee2e2;
    color: var(--danger-color);
}

.ai-conclusion-item .label.atencao {
    background: #fef3c7;
    color: var(--warning-color);
}

.ai-conclusion-item .label.positivo {
    background: #d1fae5;
    color: var(--success-color);
}

.ai-conclusion-footer {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}