/* ==========================================================================
   TKA 2025/2026 MASTER DESIGN SYSTEM & CSS STYLESHEET
   Aesthetics: Antigravity Spatial Depth, Glassmorphism, Dark/Light Palette
   ========================================================================== */

:root {
    /* Color Palette - High Contrast Dark Mode */
    --bg-main: #0F172A;
    --bg-surface: #1E293B;
    --bg-card: rgba(30, 41, 59, 0.9);
    --bg-card-hover: rgba(51, 65, 85, 0.95);
    --border-color: rgba(255, 255, 255, 0.15);
    --border-color-hover: rgba(99, 102, 241, 0.6);
    
    /* Brand Colors */
    --primary: #6366F1;
    --primary-hover: #4F46E5;
    --primary-light: rgba(99, 102, 241, 0.25);
    --accent: #38BDF8;
    --accent-gradient: linear-gradient(135deg, #6366F1 0%, #38BDF8 100%);
    
    /* Status Colors */
    --success: #10B981;
    --success-bg: rgba(16, 185, 129, 0.2);
    --warning: #F59E0B;
    --warning-bg: rgba(245, 158, 11, 0.2);
    --danger: #EF4444;
    --danger-bg: rgba(239, 68, 68, 0.2);
    --info: #3B82F6;
    
    /* Text Colors - High Contrast */
    --text-main: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-muted: #94A3B8;
    
    /* Shadows & Effects */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.6);
    --glass-backdrop: blur(16px) saturate(180%);
    
    /* Radius & Layout */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-pill: 9999px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode Overrides (Default / Bright Mode) */
html.light {
    --bg-main: #F1F5F9;
    --bg-surface: #FFFFFF;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F8FAFC;
    --border-color: #CBD5E1;
    --border-color-hover: rgba(99, 102, 241, 0.5);
    
    --text-main: #0F172A;
    --text-secondary: #334155;
    --text-muted: #64748B;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 30px -10px rgba(0, 0, 0, 0.15);
}

/* Base Reset & Globals */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* App Container Layout */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Navbar Header */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 2rem;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: var(--glass-backdrop);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.logo-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #fff;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.brand-text h1 {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.brand-text h1 span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-text .subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Nav Tabs */
.nav-tabs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.15);
    padding: 0.35rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-color);
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 1.25rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 600;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: var(--transition);
}

.nav-tab:hover {
    color: var(--text-main);
}

.nav-tab.active {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.badge-dataset {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.9rem;
    background: var(--primary-light);
    color: var(--primary);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-pill);
    font-size: 0.8rem;
    font-weight: 700;
}

.btn-theme {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--warning);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: var(--transition);
}

.btn-theme:hover {
    transform: rotate(20deg) scale(1.05);
}

/* Main Content Panes */
.main-content {
    flex: 1;
    padding: 1.5rem 2rem;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   TAB 1: EXPLORER LAYOUT & SIDEBAR
   ========================================================================== */

.explorer-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 1.5rem;
    align-items: start;
}

/* Sidebar Filter */
.sidebar {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: sticky;
    top: 5rem;
    max-height: calc(100vh - 6.5rem);
    overflow-y: auto;
}

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

.sidebar-header h3 {
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-clear-filter {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.3rem;
    border-radius: var(--radius-sm);
}

.btn-clear-filter:hover {
    color: var(--danger);
}

/* Search Box */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.search-box input {
    width: 100%;
    padding: 0.7rem 2.2rem 0.7rem 2.5rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-size: 0.88rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.btn-clear-text {
    position: absolute;
    right: 0.75rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
}

/* Filter Groups & Type Pills */
.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.filter-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.type-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.pill {
    padding: 0.4rem 0.8rem;
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-color);
    background: var(--bg-main);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.pill:hover {
    border-color: var(--primary);
    color: var(--text-main);
}

.pill.active {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
}

/* Mapel List Items */
.mapel-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    max-height: 340px;
    overflow-y: auto;
    padding-right: 0.2rem;
}

.mapel-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.85rem;
    border-radius: var(--radius-md);
    background: var(--bg-main);
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

.mapel-item:hover {
    background: var(--bg-card-hover);
    color: var(--text-main);
}

.mapel-item.active {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
    font-weight: 700;
}

.mapel-item .count-pill {
    font-size: 0.72rem;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
}

.mapel-item.active .count-pill {
    background: var(--primary);
    color: #fff;
}

/* Results Header */
.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    background: var(--bg-surface);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.results-info h2 {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-main);
}

.results-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.custom-select {
    padding: 0.5rem 1rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
}

.custom-select.large {
    width: 100%;
    padding: 0.85rem 1.25rem;
    font-size: 1rem;
}

/* Question Cards Feed */
.questions-feed {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.question-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.question-card:hover {
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-md);
}

.question-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.q-meta-left {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.badge-mapel {
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-sm);
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-type {
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-type.PG { background: rgba(59, 130, 246, 0.15); color: #3B82F6; }
.badge-type.MCMA { background: rgba(168, 85, 247, 0.15); color: #A855F7; }
.badge-type.BENAR_SALAH { background: rgba(236, 72, 153, 0.15); color: #EC4899; }

.q-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.q-indicator-box {
    margin-bottom: 1.25rem;
    padding: 0.75rem 1rem;
    background: var(--bg-main);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--accent);
}

.indicator-title {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
}

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

/* Pertanyaan Rich HTML Content */
.pertanyaan-body {
    font-size: 0.98rem;
    color: var(--text-main);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.pertanyaan-body p {
    margin-bottom: 0.75rem;
}

.pertanyaan-body img,
.pembahasan-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 1rem 0;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: block;
}

/* Overrides untuk scraped Kemendikdasmen HTML inline styles & KaTeX math formulas */
.pertanyaan-body [style*="color"],
.pembahasan-body [style*="color"],
.cbt-question-content [style*="color"],
.option-text [style*="color"] {
    color: var(--text-main) !important;
}

.pertanyaan-body [style*="background"],
.pembahasan-body [style*="background"],
.cbt-question-content [style*="background"],
.option-text [style*="background"] {
    background-color: transparent !important;
}

/* Kontras Tinggi untuk Rumus Matematika KaTeX */
.katex, .katex * {
    color: var(--text-main) !important;
}

.katex-display {
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-color-hover) !important;
    border-radius: var(--radius-md) !important;
    padding: 1rem 1.25rem !important;
    margin: 1rem 0 !important;
    box-shadow: var(--shadow-sm);
    overflow-x: auto;
}

.katex-display > .katex {
    display: inline-block;
    white-space: nowrap;
}

/* Penyesuaian Kotak Himpunan & Tabel dari Scraper */
.pertanyaan-body div, 
.pembahasan-body div,
.cbt-question-content div {
    border-color: var(--border-color) !important;
}

/* Options Display (Explorer Mode) */
.options-display {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
}

.option-row {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 0.75rem 1rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.option-key {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-main);
    flex-shrink: 0;
}

.option-text {
    flex: 1;
}

/* Accordion Pembahasan */
.pembahasan-accordion {
    margin-top: 1rem;
    border-top: 1px dashed var(--border-color);
    padding-top: 1rem;
}

.btn-toggle-pembahasan {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.btn-toggle-pembahasan:hover {
    background: var(--success);
    color: #fff;
}

.pembahasan-box {
    margin-top: 1rem;
    padding: 1.25rem;
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius-md);

    font-size: 0.92rem;
    color: var(--text-main);
}

/* ==========================================================================
   TAB 2: SIMULASI CBT TRYOUT
   ========================================================================== */

.cbt-setup-card {
    max-width: 640px;
    margin: 2rem auto;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.cbt-icon-wrapper {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    margin: 0 auto 1.25rem auto;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.setup-header h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.setup-header p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin-bottom: 2rem;
}

.setup-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.exam-rules {
    background: var(--bg-main);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.exam-rules h4 {
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.exam-rules ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    width: 100%;
}

/* CBT Active Exam Layout */
.cbt-exam-container {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.cbt-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-surface);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.exam-title-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.badge-mapel-code {
    padding: 0.35rem 0.75rem;
    background: var(--primary);
    color: #fff;
    font-weight: 800;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

.timer-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-pill);
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    font-weight: 700;
}

.cbt-workspace {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 1.25rem;
}

.cbt-question-area {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    min-height: 520px;
}

.question-number-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.q-number {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--primary);
}

.q-type-badge {
    padding: 0.3rem 0.8rem;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-pill);
    font-size: 0.8rem;
    font-weight: 600;
}

/* CBT Option Items Interactive */
.cbt-options-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.5rem;
    margin-bottom: 2rem;
}

.cbt-option-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--bg-main);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

.cbt-option-item:hover {
    border-color: var(--primary);
    background: var(--bg-card-hover);
}

.cbt-option-item.selected {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.cbt-opt-key {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: var(--text-main);
    flex-shrink: 0;
}

.cbt-option-item.selected .cbt-opt-key {
    background: var(--primary);
    color: #fff;
    border-color: transparent;
}

.cbt-footer-controls {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
}

.checkbox-ragu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: 700;
    color: var(--warning);
    user-select: none;
}

/* CBT Drawer Grid */
.cbt-grid-drawer {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.grid-numbers {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.5rem;
}

.btn-q-num {
    height: 42px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-main);
    color: var(--text-main);
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.btn-q-num:hover {
    border-color: var(--primary);
}

.btn-q-num.active {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn-q-num.answered {
    background: var(--primary);
    color: #fff;
    border-color: transparent;
}

.btn-q-num.ragu {
    background: var(--warning);
    color: #fff;
    border-color: transparent;
}

.grid-legend {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

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

.box {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}
.box-answered { background: var(--primary); }
.box-ragu { background: var(--warning); }
.box-unanswered { background: var(--bg-main); border: 1px solid var(--border-color); }

/* Buttons Utility */
.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    padding: 0.7rem 1.4rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-main);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 0.7rem 1.4rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
}

.btn-danger-outline {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.btn-danger-outline:hover {
    background: var(--danger);
    color: #fff;
}

/* ==========================================================================
   TAB 3: ANALYTICS & METRICS
   ========================================================================== */

.analytics-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.analytics-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}

.metric-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.metric-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
}

.bg-primary { background: var(--primary); }
.bg-success { background: var(--success); }
.bg-warning { background: var(--warning); }
.bg-info { background: var(--info); }

.metric-data {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1.2;
}

.metric-label {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.table-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.table-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

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

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

.data-table th, .data-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--bg-main);
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
}

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

/* Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 480px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.result-badge-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--warning-bg);
    color: var(--warning);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem auto;
}

.score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 6px solid var(--primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 1.5rem auto;
    background: var(--primary-light);
}

.score-num {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

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

.stats-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.stat-box {
    background: var(--bg-main);
    padding: 0.75rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
}

.stat-val {
    font-size: 1.25rem;
    font-weight: 800;
}

.stat-lbl {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.modal-footer {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

/* Helpers */
.hidden { display: none !important; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }

/* Responsive Mobile Layout */
@media (max-width: 900px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    .explorer-layout {
        grid-template-columns: 1fr;
    }
    .cbt-workspace {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: static;
        max-height: none;
    }
}