/* ==========================================================================
   SHAHWAR CHAUDHARY EDTECH - MOCK TEST PORTAL STYLESHEET
   Features: Premium Dark Theme, Glassmorphism, Advanced CBT Simulator,
             SVG Circular Score Indicators, Solutions Explorer & Responsive Layouts
   ========================================================================== */

/* --- CSS VARIABLES & BRAND TOKENS --- */
:root {
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Outfit', sans-serif;
    
    /* Sleek Dark Palette */
    --color-bg-deep: #090d16;
    --color-bg-dark: #0f1524;
    --color-bg-card: rgba(30, 41, 59, 0.6);
    --color-bg-card-hover: rgba(30, 41, 59, 0.85);
    
    --color-text-main: #f8fafc;
    --color-text-muted: #94a3b8;
    --color-text-dark: #0f172a;
    
    /* Glowing Accent Colors */
    --color-primary: #10b981; /* FSO Emerald Green */
    --color-primary-hover: #059669;
    --color-primary-glow: rgba(16, 185, 129, 0.25);
    
    --color-gold: #f59e0b; /* Success Gold */
    --color-gold-hover: #d97706;
    --color-gold-glow: rgba(245, 158, 11, 0.25);
    
    --color-accent-blue: #0ea5e9; /* sky blue */
    --color-accent-blue-glow: rgba(14, 165, 233, 0.25);
    
    --color-accent-purple: #a855f7; /* marked review state */
    --color-accent-purple-glow: rgba(168, 85, 247, 0.25);

    --color-accent-red: #ef4444; /* negative / danger red */
    --color-accent-red-glow: rgba(239, 68, 68, 0.25);
    
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-active: rgba(16, 185, 129, 0.4);
    
    --glass-blur: blur(20px) saturate(180%);
    --glass-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.45);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- BASE STYLES & RESET --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg-deep);
    color: var(--color-text-main);
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    background-color: var(--color-bg-deep);
    position: relative;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.01em;
}

p {
    color: var(--color-text-muted);
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    border: none;
    background: transparent;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition-smooth);
}

/* --- BACKGROUND GLOW SPHERES --- */
.glow-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    z-index: 1;
    pointer-events: none;
    opacity: 0.25;
}

.sphere-1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary-glow);
    top: 5%;
    left: -100px;
}

.sphere-2 {
    width: 500px;
    height: 500px;
    background: var(--color-accent-blue-glow);
    bottom: 10%;
    right: -150px;
}

.sphere-3 {
    width: 450px;
    height: 450px;
    background: var(--color-gold-glow);
    top: 45%;
    left: 30%;
}

/* --- GLASSMORPHIC NAV BAR --- */
.main-header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(9, 13, 22, 0.7);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-smooth);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-logo {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    object-fit: cover;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-text-main);
    line-height: 1.1;
}

.brand-subtitle {
    font-family: var(--font-primary);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 6px;
}

.badge-tag {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-gold);
    font-size: 0.65rem;
    padding: 1px 6px;
    border-radius: 4px;
    border: 1px solid rgba(245, 158, 11, 0.15);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    position: relative;
    padding: 6px 0;
    transition: var(--transition-smooth);
}

.nav-link:hover, .nav-link.active {
    color: var(--color-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition-smooth);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

/* --- SPA LAYOUT WRAPPER --- */
.portal-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px;
    position: relative;
    z-index: 2;
}

.portal-view {
    display: none;
    animation: fadeIn 0.4s ease-out forwards;
}

.portal-view.active-view {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Common UI Elements */
.welcome-pill {
    display: inline-block;
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-primary);
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 5px 14px;
    border-radius: 100px;
    border: 1px solid rgba(16, 185, 129, 0.20);
    margin-bottom: 14px;
}

.highlight {
    background: linear-gradient(135deg, var(--color-primary) 30%, var(--color-accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 10px 24px;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.primary-cta {
    background-color: var(--color-primary);
    color: var(--color-text-dark);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.35);
}

.primary-cta:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

.secondary-cta {
    background-color: rgba(255, 255, 255, 0.04);
    color: var(--color-text-main);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.secondary-cta:hover {
    background-color: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.15);
}

/* ==========================================
   1. DASHBOARD COMPONENT STYLING
   ========================================== */
.dashboard-hero {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 30px;
    margin-bottom: 40px;
    align-items: center;
}

.welcome-box {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.welcome-title {
    font-size: 2.5rem;
    line-height: 1.15;
    margin-bottom: 14px;
}

.welcome-desc {
    font-size: 1.05rem;
    max-width: 600px;
}

/* Stats Performance Index */
.performance-stats-card {
    background: var(--color-bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    padding: 24px;
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
}

.performance-stats-card h3 {
    font-size: 1.1rem;
    color: var(--color-gold);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.stat-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 14px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.stat-box:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.08);
}

.stat-val {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-text-main);
    line-height: 1.2;
}

.stat-lbl {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 4px;
}

/* Dashboard Grid Layouts */
.dashboard-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 30px;
}

.section-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.section-title-row h2 {
    font-size: 1.6rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.live-count-badge {
    font-size: 0.75rem;
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-primary);
    padding: 2px 10px;
    border-radius: 100px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

#dashboardSearch {
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    color: var(--color-text-main);
    font-family: inherit;
    font-size: 0.9rem;
    width: 250px;
    transition: var(--transition-smooth);
}

#dashboardSearch:focus {
    outline: none;
    border-color: var(--color-border-active);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 15px var(--color-primary-glow);
}

/* Mock Card Styling */
.mock-test-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.mock-card {
    background: var(--color-bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    padding: 28px;
    border-radius: 20px;
    transition: var(--transition-smooth);
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.mock-card:hover {
    transform: translateY(-4px);
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-active);
    box-shadow: var(--glass-shadow);
}

.mock-card-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    flex: 1;
}

.mock-tag-row {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.mock-tag {
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
}

.tag-fssai { background: rgba(14, 165, 233, 0.1); color: var(--color-accent-blue); }
.tag-state { background: rgba(168, 85, 247, 0.1); color: var(--color-accent-purple); }
.tag-custom { background: rgba(245, 158, 11, 0.1); color: var(--color-gold); }

.mock-card-title {
    font-size: 1.3rem;
    margin-bottom: 6px;
    line-height: 1.25;
}

.mock-card-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.mock-meta-row {
    display: flex;
    gap: 20px;
    margin-top: auto;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.meta-item svg {
    color: var(--color-primary);
}

.mock-card-right {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    gap: 12px;
    min-width: 140px;
}

.mock-price-badge {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-primary);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Sidebar Sections */
.sidebar-section {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Syllabus Checklist Card */
.syllabus-checklist-card, .attempts-history-card, .admin-form-card, .admin-import-card {
    background: var(--color-bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    padding: 24px;
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
}

.card-subtitle {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.checklist-accordion {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checklist-group {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.checklist-group:hover {
    border-color: rgba(255, 255, 255, 0.08);
}

.group-header {
    padding: 12px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.02);
}

.group-progress {
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 8px;
    border-radius: 4px;
}

.group-items {
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.check-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    cursor: pointer;
    user-select: none;
    transition: var(--transition-smooth);
}

.check-item:hover {
    color: var(--color-text-main);
}

.check-item input[type="checkbox"] {
    accent-color: var(--color-primary);
    width: 16px;
    height: 16px;
    margin-top: 2px;
    cursor: pointer;
}

.check-item input[type="checkbox"]:checked + span {
    text-decoration: line-through;
    color: var(--color-primary);
}

/* Attempts History Card */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 320px;
    overflow-y: auto;
    padding-right: 4px;
}

/* Custom Scrollbar for side list */
.history-list::-webkit-scrollbar, .sol-sidebar-list::-webkit-scrollbar, .cbt-palette-grid::-webkit-scrollbar {
    width: 6px;
}
.history-list::-webkit-scrollbar-track, .sol-sidebar-list::-webkit-scrollbar-track, .cbt-palette-grid::-webkit-scrollbar-track {
    background: transparent;
}
.history-list::-webkit-scrollbar-thumb, .sol-sidebar-list::-webkit-scrollbar-thumb, .cbt-palette-grid::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}
.history-list::-webkit-scrollbar-thumb:hover, .sol-sidebar-list::-webkit-scrollbar-thumb:hover, .cbt-palette-grid::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

.history-item {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 12px 16px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.history-item:hover {
    transform: translateY(-2px);
    border-color: rgba(16, 185, 129, 0.3) !important;
    background: rgba(16, 185, 129, 0.03) !important;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.08);
}

.hist-left {
    display: flex;
    flex-direction: column;
}

.hist-name {
    font-size: 0.85rem;
    font-weight: 600;
}

.hist-date {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.hist-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.hist-score {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 800;
}

.hist-score.pass { color: var(--color-primary); }
.hist-score.fail { color: var(--color-accent-red); }

.hist-accuracy {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.empty-history {
    text-align: center;
    padding: 20px 0;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* ==========================================
   2. CBT SIMULATOR COMPONENT STYLING
   ========================================== */
.cbt-header {
    background: rgba(15, 21, 36, 0.95);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    padding: 16px 24px;
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
}

.cbt-badge {
    background: var(--color-gold);
    color: var(--color-text-dark);
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 0.65rem;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.05em;
    display: inline-block;
    margin-bottom: 4px;
}

#cbt-exam-name {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.2;
}

/* Section Switcher Tabs */
.cbt-sections-switcher {
    display: flex;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    padding: 4px;
}

.section-tab {
    padding: 8px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 8px;
    color: var(--color-text-muted);
    white-space: nowrap;
}

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

.section-tab.active-tab {
    background: var(--color-primary);
    color: var(--color-text-dark);
    box-shadow: 0 4px 12px var(--color-primary-glow);
}

/* Timer Pane */
.cbt-timer-pane {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 8px 16px;
    border-radius: 10px;
}

.timer-icon {
    font-size: 1.2rem;
    color: var(--color-gold);
}

.timer-digits {
    display: flex;
    flex-direction: column;
}

.timer-lbl {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.timer-val {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--color-text-main);
    line-height: 1.1;
}

/* Timer Pulsing Low warning styles */
.cbt-timer-pane.low-time {
    border-color: rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.05);
    animation: lowTimePulse 1.5s infinite;
}

.cbt-timer-pane.low-time .timer-val, .cbt-timer-pane.low-time .timer-icon {
    color: var(--color-accent-red);
}

@keyframes lowTimePulse {
    0%, 100% { box-shadow: 0 0 5px rgba(239, 68, 68, 0.2); }
    50% { box-shadow: 0 0 15px rgba(239, 68, 68, 0.4); }
}

.cbt-submit-btn {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-hover) 100%);
    color: var(--color-text-dark);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.85rem;
    padding: 10px 20px;
    border-radius: 10px;
    box-shadow: 0 4px 12px var(--color-gold-glow);
}

.cbt-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--color-gold-glow);
}

/* Simulator Grid Workspaces */
.cbt-workspace {
    display: grid;
    grid-template-columns: 1.35fr 0.65fr;
    gap: 24px;
}

.cbt-question-panel {
    background: var(--color-bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    display: flex;
    flex-direction: column;
    min-height: 520px;
}

.q-header-bar {
    padding: 18px 24px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.q-index-tag {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-primary);
}

.q-marking {
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 4px 10px;
    border-radius: 6px;
    color: var(--color-text-muted);
}

.q-content-box {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.q-text {
    font-size: 1.1rem;
    color: var(--color-text-main);
    line-height: 1.5;
    margin-bottom: 28px;
    font-weight: 500;
}

/* Options Select box styling */
.q-options {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.option-wrapper {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 16px 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    transition: var(--transition-smooth);
    user-select: none;
}

.option-wrapper:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.12);
}

.option-radio {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--color-text-muted);
    flex-shrink: 0;
    transition: var(--transition-smooth);
}

.option-lbl {
    font-size: 0.95rem;
    color: var(--color-text-main);
}

/* Option Selected Styles */
.option-wrapper.selected {
    background: rgba(16, 185, 129, 0.06);
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.1);
}

.option-wrapper.selected .option-radio {
    border-color: var(--color-primary);
    background-color: var(--color-primary);
    color: var(--color-text-dark);
}

/* Actions Footer panel */
.q-actions-bar {
    background: rgba(15, 21, 36, 0.4);
    border-top: 1px solid var(--color-border);
    padding: 16px 24px;
    border-radius: 0 0 20px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.actions-left, .actions-right {
    display: flex;
    gap: 10px;
}

.cbt-action-btn {
    padding: 10px 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-display);
}

.btn-primary { background: var(--color-primary); color: var(--color-text-dark); }
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); }

.btn-secondary { background: rgba(255, 255, 255, 0.04); color: var(--color-text-main); border: 1px solid rgba(255, 255, 255, 0.06); }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.08); }

.btn-danger { background: rgba(239, 68, 68, 0.08); color: var(--color-accent-red); border: 1px solid rgba(239, 68, 68, 0.15); }
.btn-danger:hover { background: var(--color-accent-red); color: var(--color-text-main); }

.btn-warning { background: rgba(245, 158, 11, 0.08); color: var(--color-gold); border: 1px solid rgba(245, 158, 11, 0.15); }
.btn-warning:hover { background: var(--color-gold); color: var(--color-text-dark); }

/* Right Palette Sidebar Panel */
.cbt-sidebar-panel {
    background: var(--color-bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    padding: 24px;
    display: flex;
    flex-direction: column;
}

.cbt-profile-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 14px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.profile-avatar {
    font-size: 1.8rem;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-details {
    display: flex;
    flex-direction: column;
}

.student-name {
    font-size: 0.85rem;
    font-weight: 700;
}

.student-id {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

/* Palette Status Summary Grid */
.cbt-palette-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}

.palette-stat {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.03);
    padding: 10px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.palette-indicator {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-main);
}

.ind-answered { background-color: var(--color-primary); color: var(--color-text-dark); }
.ind-not-answered { background-color: var(--color-accent-red); }
.ind-marked { background-color: var(--color-accent-purple); }
.ind-not-visited { background-color: rgba(255, 255, 255, 0.1); }

.palette-stat-lbl {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    line-height: 1.25;
}

/* Question Palette Circles Grid */
.palette-title {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.cbt-palette-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    max-height: 260px;
    overflow-y: auto;
    padding-right: 4px;
    margin-bottom: 20px;
}

.palette-circle {
    aspect-ratio: 1;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-main);
    border: 1px solid rgba(255, 255, 255, 0.04);
    cursor: pointer;
    transition: var(--transition-smooth);
    background-color: rgba(255, 255, 255, 0.03);
}

.palette-circle:hover {
    transform: scale(1.1);
    border-color: rgba(255,255,255,0.2);
}

/* Palette Color States */
.palette-circle.cbt-state-not-visited { background-color: rgba(255, 255, 255, 0.04); color: var(--color-text-muted); }
.palette-circle.cbt-state-not-answered { background-color: var(--color-accent-red); color: var(--color-text-main); }
.palette-circle.cbt-state-answered { background-color: var(--color-primary); color: var(--color-text-dark); }
.palette-circle.cbt-state-marked { background-color: var(--color-accent-purple); color: var(--color-text-main); }
.palette-circle.cbt-state-answered-marked { background-color: var(--color-accent-purple); color: var(--color-text-main); border: 2px solid var(--color-primary); }

.palette-circle.active-q {
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.35);
    border: 2px solid var(--color-text-main) !important;
    transform: scale(1.05);
}

/* Palette Legend */
.cbt-palette-legend {
    margin-top: auto;
    border-top: 1px solid var(--color-border);
    padding-top: 16px;
}

.cbt-palette-legend h4 {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.legend-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.legend-grid span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.circle-legend {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    display: inline-block;
}

.bg-green { background-color: var(--color-primary); }
.bg-red { background-color: var(--color-accent-red); }
.bg-purple { background-color: var(--color-accent-purple); }
.bg-grey { background-color: rgba(255, 255, 255, 0.15); }

/* ==========================================
   3. ANALYTICS & RESULTS VIEW STYLING
   ========================================== */
.results-header-banner {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(14, 165, 233, 0.08) 100%);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    padding: 45px 30px;
    border-radius: 24px;
    text-align: center;
    margin-bottom: 40px;
    box-shadow: var(--glass-shadow);
}

.results-tagline {
    display: inline-block;
    color: var(--color-gold);
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

#results-feedback-title {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

#results-feedback-desc {
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto 28px auto;
}

.results-actions-row {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* Scorecard Grid */
.results-scorecard-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 30px;
    margin-bottom: 40px;
}

.score-circle-card {
    background: var(--color-bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    padding: 35px;
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Circular SVG Progress */
.circle-chart {
    position: relative;
    width: 180px;
    height: 180px;
}

.circular-svg {
    width: 100%;
    height: 100%;
}

.circle-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.03);
    stroke-width: 2.8;
}

.circle-fill {
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 2.8;
    stroke-linecap: round;
    transition: stroke-dasharray 1s ease-out;
}

.circle-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.circle-val {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--color-text-main);
    line-height: 1.1;
}

.circle-lbl {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 4px;
}

/* Breakdown list card */
.breakdown-card {
    background: var(--color-bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    padding: 28px;
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
}

.breakdown-card h3 {
    font-size: 1.2rem;
    color: var(--color-accent-blue);
    margin-bottom: 20px;
}

.breakdown-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.breakdown-box {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid rgba(255, 255, 255, 0.03);
    padding: 16px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.b-val {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1.2;
}

.b-lbl {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.color-green { color: var(--color-primary); }
.color-red { color: var(--color-accent-red); }
.color-grey { color: var(--color-text-muted); }
.color-blue { color: var(--color-accent-blue); }
.color-gold { color: var(--color-gold); }
.color-purple { color: var(--color-accent-purple); }

/* Subject Accuracy breakdown */
.subject-analysis-section {
    margin-bottom: 40px;
}

.subject-analysis-section h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.subject-bars-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.subject-bar-card {
    background: var(--color-bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    padding: 20px;
    border-radius: 16px;
}

.sub-bar-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.sub-bar-score {
    color: var(--color-primary);
}

.sub-bar-track {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    height: 8px;
    border-radius: 10px;
    overflow: hidden;
}

.sub-bar-fill {
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent-blue) 100%);
    height: 100%;
    border-radius: 10px;
    width: 0;
    transition: width 1s ease-out;
}

/* ==========================================
   4. SOLUTIONS KEY EXPLORER COMPONENT
   ========================================== */
.solutions-explorer-section {
    background: var(--color-bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
}

.solutions-explorer-section h2 {
    font-size: 1.5rem;
}

.section-subtitle {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.solutions-workspace {
    display: grid;
    grid-template-columns: 0.65fr 1.35fr;
    gap: 24px;
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
}

/* Left side question bar */
.sol-sidebar-list {
    background: rgba(15, 21, 36, 0.3);
    max-height: 480px;
    overflow-y: auto;
    border-right: 1px solid var(--color-border);
}

.sol-list-item {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition-smooth);
}

.sol-list-item:hover {
    background: rgba(255, 255, 255, 0.02);
}

.sol-list-item.active-sol {
    background: rgba(16, 185, 129, 0.05);
}

.sol-status-badge {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 800;
    flex-shrink: 0;
}

.badge-correct { background: rgba(16, 185, 129, 0.15); color: var(--color-primary); }
.badge-incorrect { background: rgba(239, 68, 68, 0.15); color: var(--color-accent-red); }
.badge-skipped { background: rgba(255, 255, 255, 0.08); color: var(--color-text-muted); }

.sol-q-index {
    font-size: 0.85rem;
    font-weight: 600;
}

/* Right Content panel */
.sol-content-pane {
    padding: 30px;
    max-height: 480px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sol-empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.sol-q-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.sol-sec-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-accent-blue);
    background: rgba(14, 165, 233, 0.1);
    padding: 2px 10px;
    border-radius: 4px;
}

.sol-result-banner {
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
}

.banner-correct { background: rgba(16, 185, 129, 0.1); color: var(--color-primary); }
.banner-incorrect { background: rgba(239, 68, 68, 0.1); color: var(--color-accent-red); }
.banner-skipped { background: rgba(255, 255, 255, 0.05); color: var(--color-text-muted); }

.sol-q-text {
    font-size: 1.15rem;
    color: var(--color-text-main);
    line-height: 1.5;
    margin-bottom: 24px;
    font-weight: 600;
}

.sol-options-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
}

.sol-option-box {
    padding: 14px 18px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.04);
    background: rgba(255, 255, 255, 0.01);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
}

/* Solution Option Color Highlights */
.sol-option-box.sol-correct {
    border-color: var(--color-primary);
    background: rgba(16, 185, 129, 0.06);
    color: var(--color-text-main);
}

.sol-option-box.sol-correct::before {
    content: '✓';
    color: var(--color-primary);
    font-weight: 800;
}

.sol-option-box.sol-incorrect {
    border-color: var(--color-accent-red);
    background: rgba(239, 68, 68, 0.06);
}

.sol-option-box.sol-incorrect::before {
    content: '✗';
    color: var(--color-accent-red);
    font-weight: 800;
}

.option-badge {
    font-weight: 700;
    color: var(--color-text-muted);
}

.sol-option-box.sol-correct .option-badge { color: var(--color-primary); }
.sol-option-box.sol-incorrect .option-badge { color: var(--color-accent-red); }

/* In-depth explanation panel */
.explanation-panel {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 20px;
}

.explanation-panel h4 {
    color: var(--color-gold);
    font-size: 0.95rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.explanation-panel h4::before {
    content: '🎓';
}

.explanation-panel p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ==========================================
   5. EDUCATOR ADMIN COMPONENT STYLING
   ========================================== */
.admin-grid-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
    width: 100%;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.form-group input, .form-group textarea, .form-group select {
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    color: var(--color-text-main);
    font-family: inherit;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: var(--color-border-active);
    background: rgba(255, 255, 255, 0.05);
}

.form-separator {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 24px 0;
}

.questions-builder-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.admin-minor-btn {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-primary);
    padding: 6px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 6px;
    border: 1px solid rgba(16, 185, 129, 0.15);
}

.admin-minor-btn:hover {
    background: var(--color-primary);
    color: var(--color-text-dark);
}

.admin-questions-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-height: 480px;
    overflow-y: auto;
    padding-right: 4px;
    margin-bottom: 24px;
}

.admin-q-block {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 20px;
    border-radius: 12px;
    position: relative;
}

.btn-remove-q {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-accent-red);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
}

.btn-remove-q:hover {
    background: var(--color-accent-red);
    color: var(--color-text-main);
}

.admin-q-block h5 {
    font-size: 0.9rem;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.options-builder-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 12px;
}

.import-block textarea {
    width: 100%;
    height: 160px;
    font-family: monospace;
    font-size: 0.8rem;
    resize: vertical;
}

.import-actions {
    display: flex;
    gap: 12px;
    margin-top: 14px;
    margin-bottom: 30px;
}

.import-actions button {
    flex: 1;
}

/* Registered list */
.registered-tests-manager h3 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--color-gold);
}

.registered-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 280px;
    overflow-y: auto;
    padding-right: 4px;
}

.registered-item {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 12px 16px;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.reg-left {
    display: flex;
    flex-direction: column;
}

.reg-title {
    font-size: 0.85rem;
    font-weight: 600;
}

.reg-meta {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.reg-right {
    display: flex;
    gap: 8px;
}

.reg-btn {
    padding: 4px 8px;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
}

.reg-export { background: rgba(14, 165, 233, 0.1); color: var(--color-accent-blue); }
.reg-export:hover { background: var(--color-accent-blue); color: var(--color-text-dark); }

.reg-delete { background: rgba(239, 68, 68, 0.1); color: var(--color-accent-red); }
.reg-delete:hover { background: var(--color-accent-red); color: var(--color-text-main); }

.empty-registered {
    text-align: center;
    padding: 20px 0;
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

/* ==========================================
   6. SUBMIT EXAM DOUBLE CONFIRMATION MODAL
   ========================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(9, 13, 22, 0.7);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.modal-overlay.active-modal {
    display: flex;
    opacity: 1;
}

.cbt-modal-card {
    background: var(--color-bg-card-hover);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 35px;
    border-radius: 24px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 25px 60px rgba(0,0,0,0.6);
    animation: modalScale 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes modalScale {
    from { transform: scale(0.9) translateY(10px); }
    to { transform: scale(1) translateY(0); }
}

.cbt-modal-card h3 {
    font-size: 1.4rem;
    color: var(--color-gold);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cbt-modal-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.modal-summary-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 28px;
}

.modal-summary-table td {
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.85rem;
}

.modal-summary-table tr:last-child td {
    border-bottom: none;
}

.modal-actions {
    display: flex;
    gap: 16px;
}

.modal-btn {
    flex: 1;
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 700;
    border-radius: 10px;
    font-family: var(--font-display);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-cancel {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-main);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-cancel:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-confirm {
    background: var(--color-primary);
    color: var(--color-text-dark);
}

.btn-confirm:hover {
    background: var(--color-primary-hover);
    box-shadow: 0 4px 15px var(--color-primary-glow);
}

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

/* Mobile Menu Toggle button */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1002;
}

.menu-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-main);
    border-radius: 10px;
    transition: var(--transition-smooth);
}

/* Base Palette Toggle Button (Mobile only) */
.cbt-palette-toggle-btn {
    display: none;
    align-items: center;
    gap: 6px;
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-primary);
    border: 1px solid rgba(16, 185, 129, 0.2);
    padding: 8px 14px;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-display);
    transition: var(--transition-smooth);
}
.cbt-palette-toggle-btn:hover {
    background: rgba(16, 185, 129, 0.2);
}

/* Mobile Sidebar Close Button */
.cbt-sidebar-close-btn {
    display: none;
}

/* ==========================================
   7. MOBILE RESPONSIVENESS & MEDIA QUERIES
   ========================================== */
@media (max-width: 1024px) {
    .dashboard-hero {
        grid-template-columns: 1fr;
        text-align: center;
        justify-items: center;
    }
    
    .welcome-box {
        align-items: center;
    }
    
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
    
    .cbt-workspace {
        grid-template-columns: 1fr;
    }
    
    .results-scorecard-grid {
        grid-template-columns: 1fr;
    }
    
    .subject-bars-container {
        grid-template-columns: 1fr;
    }
    
    .solutions-workspace {
        grid-template-columns: 1fr;
    }
    
    .sol-sidebar-list {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        max-height: 200px;
    }
    
    .admin-grid-layout {
        grid-template-columns: 1fr;
    }

    .cbt-palette-toggle-btn {
        display: flex;
    }
    
    .cbt-sidebar-panel {
        position: fixed;
        top: 0;
        right: -100%;
        width: 320px;
        height: 100vh;
        z-index: 1002;
        transition: var(--transition-smooth);
        border-radius: 0;
        border-left: 1px solid var(--color-border);
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
        background: #0f1524;
    }
    
    .cbt-sidebar-panel.open-active {
        right: 0;
    }
    
    .cbt-sidebar-close-btn {
        display: block;
        position: absolute;
        top: 20px;
        right: 20px;
        background: none;
        border: none;
        color: var(--color-text-muted);
        font-size: 1.2rem;
        cursor: pointer;
        z-index: 1003;
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }

    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: #0f1524;
        border-left: 1px solid var(--color-border);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 40px 40px 40px;
        gap: 24px;
        transition: var(--transition-smooth);
        z-index: 1001;
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
    }
    
    .nav-menu.drawer-open {
        right: 0;
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    }
    
    .menu-toggle.open-active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .menu-toggle.open-active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.open-active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-link {
        font-size: 1.1rem;
        width: 100%;
    }
    
    .welcome-title {
        font-size: 2rem;
    }
    
    .mock-card {
        flex-direction: column;
    }
    
    .mock-card-right {
        align-items: flex-start;
        min-width: unset;
        margin-top: 14px;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        padding-top: 14px;
    }
    
    .cbt-header {
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
        padding: 16px;
        border-radius: 14px;
    }
    
    .cbt-header-controls {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 10px;
        width: 100%;
    }

    .cbt-timer-pane {
        padding: 6px 12px;
    }

    .cbt-palette-toggle-btn, .cbt-submit-btn {
        flex: 1;
        justify-content: center;
        font-size: 0.78rem;
        padding: 8px 12px;
        height: 38px;
    }
    
    .cbt-sections-switcher {
        overflow-x: auto;
    }
    
    .breakdown-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .options-builder-grid {
        grid-template-columns: 1fr;
    }

    .q-actions-bar {
        padding: 12px;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    
    .actions-left, .actions-right {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        width: 100%;
    }
    
    .cbt-action-btn {
        padding: 8px 10px;
        font-size: 0.75rem;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* --- KEYFRAMES FOR ADMINISTRATIVE PORTAL LOCK SHAKE --- */
@keyframes loginShake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

/* ==========================================================================
   STUDENT PERFORMANCE ANALYTICS TRACKER STYLES
   ========================================================================== */
.admin-full-width-card {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-glass);
}

.performance-table-container {
    width: 100%;
    overflow-x: auto;
    margin-top: 16px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(9, 13, 22, 0.25);
}

.admin-performance-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.88rem;
}

.admin-performance-table th {
    background: rgba(255, 255, 255, 0.03);
    padding: 16px 20px;
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--color-text-muted);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-performance-table td {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--color-text-main);
    vertical-align: middle;
}

.admin-performance-table tr:last-child td {
    border-bottom: none;
}

.admin-performance-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.015);
}

.student-badge-id {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--color-primary);
    background: rgba(16, 185, 129, 0.08);
    padding: 4px 8px;
    border-radius: 6px;
    border: 1px solid rgba(16, 185, 129, 0.15);
}

.avg-score-badge {
    font-weight: 700;
    font-size: 0.9rem;
}
.avg-score-badge.high { color: var(--color-primary); }
.avg-score-badge.mid { color: var(--color-accent-blue); }
.avg-score-badge.low { color: var(--color-gold); }
.avg-score-badge.fail { color: var(--color-accent-red); }

.detail-row {
    background: rgba(0, 0, 0, 0.25) !important;
}

.detail-row-container {
    padding: 20px 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.student-history-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 12px;
    margin-bottom: 12px;
}

.student-history-mini-card {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-smooth);
}

.student-history-mini-card:hover {
    border-color: rgba(16, 185, 129, 0.25);
    background: rgba(16, 185, 129, 0.03);
    transform: translateY(-1px);
}

.student-history-mini-card .hist-mini-left {
    display: flex;
    flex-direction: column;
}

.student-history-mini-card .hist-mini-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}