/* CSS Design System - ABC Training Typing Report Dashboard */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    /* Dark Theme (Default) */
    --bg-color: #0b0f19;
    --bg-gradient: radial-gradient(circle at 50% 0%, #1e1b4b 0%, #0b0f19 80%);
    --card-bg: rgba(17, 24, 39, 0.7);
    --card-border: rgba(255, 255, 255, 0.06);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --primary: #6366f1; /* Indigo */
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.15);
    --accent: #14b8a6; /* Teal */
    --accent-glow: rgba(20, 184, 166, 0.15);
    
    --success: #10b981; /* Emerald */
    --success-bg: rgba(16, 185, 129, 0.1);
    --warning: #f59e0b; /* Amber */
    --warning-bg: rgba(245, 158, 11, 0.1);
    --danger: #ef4444; /* Red */
    --danger-bg: rgba(239, 68, 68, 0.1);
    
    --header-height: 80px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] {
    --bg-color: #f1f5f9;
    --bg-gradient: radial-gradient(circle at 50% 0%, #e0e7ff 0%, #f1f5f9 90%);
    --card-bg: rgba(255, 255, 255, 0.75);
    --card-border: rgba(0, 0, 0, 0.06);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --primary: #4f46e5;
    --primary-hover: #3730a3;
    --primary-glow: rgba(79, 70, 229, 0.08);
    --accent: #0f766e;
    --accent-glow: rgba(15, 118, 110, 0.08);
    
    --success: #047857;
    --success-bg: rgba(4, 120, 87, 0.08);
    --warning: #b45309;
    --warning-bg: rgba(180, 83, 9, 0.08);
    --danger: #b91c1c;
    --danger-bg: rgba(185, 28, 28, 0.08);
    
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    background-image: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
    transition: background var(--transition), color var(--transition);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
}

/* Glassmorphism utility card */
.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.glass-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.12);
}

/* App Layout */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    margin-bottom: 24px;
    border-radius: var(--radius-lg);
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-img {
    height: 54px;
    width: auto;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

.header-titles h1 {
    font-size: 1.6rem;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.header-titles p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.header-meta {
    text-align: right;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.header-meta .client-badge {
    background: var(--primary-glow);
    border: 1px solid var(--primary);
    color: var(--text-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    width: fit-content;
    align-self: flex-end;
}

.header-meta .date-range {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.controls-bar {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Theme Toggle Button */
.btn-toggle {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.btn-toggle:hover {
    background: var(--primary-glow);
    border-color: var(--primary);
}

/* Dashboard Summary Cards Grid */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.metric-card {
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.metric-info h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.metric-info .value {
    font-size: 2.2rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    color: var(--text-primary);
}

.metric-info .subtext {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.metric-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary-glow);
    color: var(--primary);
}

.metric-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary);
}

.metric-card.success::after { background: var(--success); }
.metric-card.accent::after { background: var(--accent); }
.metric-card.warning::after { background: var(--warning); }

.metric-card.success .metric-icon { background: var(--success-bg); color: var(--success); }
.metric-card.accent .metric-icon { background: var(--accent-glow); color: var(--accent); }
.metric-card.warning .metric-icon { background: var(--warning-bg); color: var(--warning); }

/* Charts & Main Section Grid */
.charts-grid {
    display: grid;
    grid-template-columns: 1.8fr 1.2fr;
    gap: 24px;
    margin-bottom: 24px;
}

@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

.chart-card {
    padding: 24px;
    height: 380px;
    display: flex;
    flex-direction: column;
}

.chart-card h2 {
    font-size: 1.15rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    border-left: 4px solid var(--primary);
    padding-left: 10px;
}

.chart-wrapper {
    position: relative;
    flex-grow: 1;
    height: calc(100% - 40px);
}

/* Tabs & List Section */
.students-section {
    padding: 24px;
    margin-bottom: 24px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 24px;
}

.section-header h2 {
    font-size: 1.3rem;
    border-left: 4px solid var(--primary);
    padding-left: 10px;
}

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

.search-box input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    outline: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.search-box input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

.search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Tabs */
.tabs-container {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    margin-bottom: 20px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--card-border);
}

.tab-btn {
    padding: 10px 20px;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    white-space: nowrap;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
    background: var(--primary-glow);
    border-color: var(--primary);
    color: var(--text-primary);
}

/* Table Design */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, 0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

th, td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--card-border);
}

th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(0, 0, 0, 0.2);
}

tr {
    transition: var(--transition);
}

tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
    cursor: pointer;
}

/* Badges */
.badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.badge.approved {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge.reproved {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Attendance circles indicator */
.attendance-log {
    display: flex;
    gap: 6px;
}

.att-dot {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    font-size: 0.65rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    cursor: help;
    position: relative;
}

.att-dot.P { background: var(--success); }
.att-dot.F { background: var(--danger); }

/* Custom Tooltip */
.att-dot[data-tooltip]:hover::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    background: #000;
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    white-space: nowrap;
    z-index: 10;
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
    pointer-events: none;
}

/* Detailed Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-card {
    width: 90%;
    max-width: 800px;
    background: #111827;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px rgba(0,0,0,0.8);
    padding: 30px;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    overflow-y: auto;
    max-height: 90vh;
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-header {
    margin-bottom: 24px;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 16px;
}

.modal-header h2 {
    font-size: 1.8rem;
    margin-bottom: 4px;
}

.modal-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 768px) {
    .modal-grid {
        grid-template-columns: 1fr;
    }
}

.modal-stats-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.modal-stat-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 14px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
}

.modal-stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.modal-stat-value {
    font-weight: 700;
    color: var(--text-primary);
}

.modal-chart-side {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 250px;
}

/* Accordion for Curriculum PDF */
.curriculum-section {
    padding: 24px;
    margin-bottom: 24px;
}

.curriculum-section h2 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary);
    padding-left: 10px;
}

.accordion-item {
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    overflow: hidden;
    transition: var(--transition);
}

.accordion-header {
    background: rgba(255,255,255,0.02);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    user-select: none;
    transition: var(--transition);
}

.accordion-header:hover {
    background: rgba(255,255,255,0.05);
}

.accordion-header .arrow {
    transition: transform 0.3s ease;
}

.accordion-item.active .accordion-header {
    border-bottom: 1px solid var(--card-border);
    background: var(--primary-glow);
}

.accordion-item.active .arrow {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    background: rgba(0,0,0,0.1);
    transition: max-height 0.4s ease-out;
}

.accordion-item.active .accordion-content {
    max-height: 400px;
    overflow-y: auto;
}

.lessons-list {
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lesson-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 12px;
    background: rgba(0,0,0,0.15);
    border-radius: 4px;
    font-size: 0.85rem;
}

.lesson-title {
    color: var(--text-primary);
}

.lesson-meta {
    color: var(--text-muted);
}

/* Photo Gallery Section */
.gallery-section {
    padding: 24px;
    margin-bottom: 24px;
}

.gallery-section h2 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary);
    padding-left: 10px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.gallery-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    height: 240px;
}

.gallery-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-card:hover img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.85));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-card:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay h4 {
    color: #fff;
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.gallery-overlay p {
    color: #cbd5e1;
    font-size: 0.75rem;
}

/* Lightbox View */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.95);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    opacity: 1;
    pointer-events: all;
}

.lightbox img {
    max-width: 90%;
    max-height: 85%;
    border-radius: var(--radius-sm);
    box-shadow: 0 0 30px rgba(0,0,0,0.5);
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 30px;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
}

.lightbox-caption {
    position: absolute;
    bottom: 30px;
    color: #fff;
    font-size: 1.1rem;
    text-align: center;
}

/* Teacher Notes Report Section */
.notes-section {
    padding: 30px;
    margin-bottom: 24px;
}

.notes-section h2 {
    font-size: 1.4rem;
    margin-bottom: 24px;
    border-left: 4px solid var(--primary);
    padding-left: 10px;
}

.report-doc {
    font-family: 'Inter', sans-serif;
    color: var(--text-secondary);
}

.doc-section {
    margin-bottom: 24px;
}

.doc-section h3 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.doc-section h3 i {
    color: var(--accent);
}

.doc-section p {
    font-size: 0.95rem;
    line-height: 1.6;
    text-align: justify;
}

.doc-conclusion {
    border-left: 3px dashed var(--accent);
    padding-left: 16px;
    margin-top: 20px;
}

/* Responsive fixes */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .header-meta {
        text-align: left;
        align-items: flex-start;
    }
    
    .header-meta .client-badge {
        align-self: flex-start;
    }
    
    .search-box {
        width: 100%;
    }
    
    th, td {
        padding: 10px 12px;
    }
}