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

:root {
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Rubik', sans-serif;

    /* Light Theme Colors */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    /* Accent Colors */
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: rgba(59, 130, 246, 0.1);

    --success: #10b981;
    --success-light: rgba(16, 185, 129, 0.1);
    --error: #ef4444;
    --error-light: rgba(239, 68, 68, 0.1);
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.1);

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-full: 9999px;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

[data-theme="dark"] {
    /* Dark Theme Colors */
    --bg-primary: #090d16;
    --bg-secondary: #111827;
    --bg-glass: rgba(17, 24, 39, 0.7);
    --border-color: #1f2937;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #6b7280;

    --primary-light: rgba(59, 130, 246, 0.15);
    --success-light: rgba(16, 185, 129, 0.15);
    --error-light: rgba(239, 68, 68, 0.15);
    --warning-light: rgba(245, 158, 11, 0.15);

    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --border-color: rgba(255, 255, 255, 0.06);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0.95);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes pulse-subtle {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.02);
    }

    100% {
        transform: scale(1);
    }
}

.fade-in {
    animation: fadeIn var(--transition-normal) forwards;
}

.scale-in {
    animation: scaleIn var(--transition-normal) forwards;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

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

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

/* Header styles */
header {
    background-color: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.logo-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
}

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

/* General Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-secondary);
}

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

.btn-icon {
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border-radius: var(--radius-full);
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--border-color);
}

.theme-toggle .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: block;
}

/* Main Layout */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 2rem;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

/* Dashboard / Home View */
.welcome-section {
    text-align: center;
    margin: 3rem 0;
    animation: fadeIn var(--transition-normal) ease-out;
}

.welcome-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.welcome-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.exam-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.exam-card {
    background-color: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-glass);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.exam-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), #8b5cf6);
    opacity: 0.8;
}

.exam-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.exam-card-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.exam-card-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

.exam-meta-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.exam-card-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
    flex: 1;
}

/* Exam Active Layout */
.exam-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 2rem;
    flex: 1;
    align-items: start;
}

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

.question-card {
    background-color: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-glass);
    position: relative;
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.question-num {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

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

.question-text {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

/* Statements list (combo questions) */
.statements-list {
    margin-bottom: 2rem;
    padding-left: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.statement-item {
    display: flex;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    background-color: var(--bg-primary);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
}

.statement-num {
    font-weight: 700;
    color: var(--primary);
}

/* Options Grid */
.options-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.option-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition-fast);
}

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

.option-card.selected {
    border-color: var(--primary);
    background-color: var(--primary-light);
    box-shadow: 0 0 0 1px var(--primary);
}

.option-letter {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius-sm);
    background-color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.option-card.selected .option-letter {
    background-color: var(--primary);
    color: #ffffff;
}

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

/* Correct/Incorrect Option States */
.option-card.correct {
    border-color: var(--success);
    background-color: var(--success-light);
}

.option-card.correct .option-letter {
    background-color: var(--success);
    color: #ffffff;
}

.option-card.incorrect {
    border-color: var(--error);
    background-color: var(--error-light);
}

.option-card.incorrect .option-letter {
    background-color: var(--error);
    color: #ffffff;
}

/* Navigation Buttons underneath question */
.nav-buttons-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
}

/* Sidebar Info Panel */
.sidebar-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-widget {
    background-color: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-glass);
}

.widget-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Stats widget grid */
.stats-widget-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.stat-box {
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

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

/* Question grid navigation in sidebar */
.question-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.grid-cell {
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.grid-cell:hover {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

.grid-cell.active {
    background-color: var(--primary-light);
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary);
}

.grid-cell.answered {
    background-color: rgba(59, 130, 246, 0.2);
    border-color: var(--primary);
    color: var(--primary);
}

.grid-cell.flagged {
    background-color: var(--warning-light);
    border-color: var(--warning);
    color: var(--warning);
}

.grid-cell.correct {
    background-color: var(--success-light);
    border-color: var(--success);
    color: var(--success);
}

.grid-cell.incorrect {
    background-color: var(--error-light);
    border-color: var(--error);
    color: var(--error);
}

/* Grid Cell Legend */
.legend-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    border-t: 1px solid var(--border-color);
    padding-top: 0.75rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.legend-dot {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

.legend-dot.unanswered {
    background-color: var(--bg-secondary);
}

.legend-dot.answered {
    background-color: rgba(59, 130, 246, 0.2);
    border-color: var(--primary);
}

.legend-dot.flagged {
    background-color: var(--warning-light);
    border-color: var(--warning);
}

.legend-dot.correct {
    background-color: var(--success-light);
    border-color: var(--success);
}

.legend-dot.incorrect {
    background-color: var(--error-light);
    border-color: var(--error);
}

/* Score Screen / Result Screen */
.result-container {
    max-width: 800px;
    width: 100%;
    margin: 2rem auto;
    text-align: center;
    background-color: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-glass);
}

.result-header {
    margin-bottom: 2rem;
}

.score-badge {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    color: #ffffff;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.4);
    animation: scaleIn var(--transition-normal) cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.score-num {
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1;
}

.score-label {
    font-size: 0.75rem;
    opacity: 0.9;
}

.result-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.result-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

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

.result-stat-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 1.5rem 1rem;
    border-bottom: 3px solid var(--border-color);
}

.result-stat-card.correct {
    border-bottom-color: var(--success);
}

.result-stat-card.incorrect {
    border-bottom-color: var(--error);
}

.result-stat-card.skipped {
    border-bottom-color: var(--text-muted);
}

.result-stat-value {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.result-stat-value.correct {
    color: var(--success);
}

.result-stat-value.incorrect {
    color: var(--error);
}

.result-stat-value.skipped {
    color: var(--text-secondary);
}

.result-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.result-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* General Layout helpers */
.hidden {
    display: none !important;
}

/* Custom Alert Message */
.challenge-key-alert {
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: fadeIn var(--transition-fast);
}

.challenge-key-alert.correct {
    background-color: var(--success-light);
    border: 1px solid var(--success);
    color: var(--success);
}

.challenge-key-alert.incorrect {
    background-color: var(--error-light);
    border: 1px solid var(--error);
    color: var(--error);
}

.challenge-key-alert-icon {
    font-size: 1.25rem;
}

/* --- Progress Dashboard Styles --- */

.progress-container {
    margin-top: 3.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2.5rem;
    animation: fadeIn var(--transition-normal) ease-out;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.dashboard-card {
    background-color: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-glass);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.dashboard-card-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.chart-wrapper {
    width: 100%;
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.summary-box {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 0.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.summary-value {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.summary-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.progress-recommendation-box {
    width: 100%;
}

.trend-recommendation {
    padding: 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    line-height: 1.5;
    border-left: 4px solid var(--border-color);
}

.trend-recommendation.positive {
    background-color: var(--success-light);
    border-left-color: var(--success);
    color: var(--success);
}

.trend-recommendation.negative {
    background-color: var(--error-light);
    border-left-color: var(--error);
    color: var(--error);
}

.trend-recommendation.neutral {
    background-color: var(--warning-light);
    border-left-color: var(--warning);
    color: var(--warning);
}

.trend-recommendation.info {
    background-color: rgba(59, 130, 246, 0.05);
    border-left-color: var(--primary);
    color: var(--text-secondary);
}

/* History Table Styling */
.table-responsive {
    overflow-x: auto;
    width: 100%;
}

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

.history-table th {
    padding: 1rem;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-muted);
    font-weight: 600;
}

.history-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.history-table tr:hover td {
    background-color: rgba(59, 130, 246, 0.02);
    color: var(--text-primary);
}

.score-pill {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.8rem;
}

.score-pill.pass {
    background-color: var(--success-light);
    color: var(--success);
}

.score-pill.fail {
    background-color: var(--error-light);
    color: var(--error);
}

.btn-delete-score {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
}

.btn-delete-score:hover {
    background-color: var(--error-light);
}

/* SVG Chart Elements styling & micro-animations */
.progress-svg {
    overflow: visible;
}

.chart-point-group circle {
    transition: r var(--transition-fast), fill var(--transition-fast);
    cursor: pointer;
}

.chart-point-group:hover circle {
    r: 7;
    fill: #8b5cf6;
}

.chart-point-group text {
    opacity: 0.8;
    transition: opacity var(--transition-fast), font-size var(--transition-fast);
    font-family: var(--font-heading);
}

.chart-point-group:hover text {
    opacity: 1;
    font-size: 13px;
}

/* --- Custom Confirm Modal Styles --- */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn var(--transition-fast) forwards;
}

.modal-card {
    background-color: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.25rem 2rem;
    max-width: 440px;
    width: 90%;
    box-shadow: var(--shadow-glass);
    text-align: center;
    animation: scaleIn var(--transition-normal) forwards;
}

.modal-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1;
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.modal-message {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.75rem;
    line-height: 1.5;
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.modal-actions .btn {
    flex: 1;
    max-width: 160px;
}

/* --- Creator Profile Columns --- */
.welcome-section.flex-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto 3rem auto;
    text-align: left;
    background-color: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2rem 2.5rem;
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .welcome-section.flex-row {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
        padding: 2rem 1.5rem;
    }
}

.welcome-text-container {
    flex: 1;
}

/* Large Creator Profile (Left column) */
.creator-profile-large {
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.creator-photo-container {
    position: relative;
    width: 150px;
    height: 150px;
    border-radius: var(--radius-lg);
    border: 2px solid var(--primary);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.2);
    transition: transform var(--transition-normal) ease, box-shadow var(--transition-normal) ease, border-color var(--transition-normal) ease;
}

.creator-photo-container:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.35);
    border-color: #8b5cf6;
}

.creator-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: calc(var(--radius-lg) - 2px);
    display: block;
}

.creator-badge-large {
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-full);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-color);
    animation: pulse 2s infinite;
}

.creator-name-tag {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.creator-name-tag span {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-left: 0.5rem;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
    }
}

/* Global Search Box in Header */
.search-container {
    position: relative;
    width: 350px;
    max-width: 100%;
}

#global-search-input {
    width: 100%;
    padding: 0.6rem 1rem 0.6rem 2.5rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

#global-search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
    background-color: var(--bg-secondary);
}

.search-icon {
    position: absolute;
    left: 0.9rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.95rem;
    pointer-events: none;
}

/* Search Dropdown Panel */
.search-results-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 380px;
    overflow-y: auto;
    z-index: 1000;
    display: flex;
    flex-direction: column;
}

.search-results-dropdown.hidden {
    display: none;
}

.search-result-item {
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    text-align: left;
}

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

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

.search-result-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.search-result-qtext {
    font-size: 0.85rem;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 0.4rem;
    font-weight: 500;
}

.search-result-answer {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--success);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.search-result-empty {
    padding: 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Search Detailed Modal overlay & content */
.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 600px;
    max-width: 90%;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
}

.modal-close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.modal-close-btn:hover {
    color: var(--error);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    max-height: 70vh;
}

.search-modal-exam-info {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.search-modal-qtext {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.search-modal-statements,
.search-modal-options {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.search-modal-stmt-item {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding-left: 0.75rem;
    border-left: 3px solid var(--border-color);
}

.search-modal-opt-item {
    font-size: 0.9rem;
    padding: 0.6rem 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.search-modal-opt-item.correct-opt {
    border-color: var(--success);
    background-color: var(--success-light);
    color: var(--success);
    font-weight: 600;
}

.search-modal-answer-box {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-sm);
    background-color: var(--success-light);
    color: var(--success);
    font-size: 0.95rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    background-color: var(--bg-primary);
}

/* --- iPhone 17 Pro & Mobile Responsive Styles --- */
@media (max-width: 576px) {

    /* Header layout wrapping */
    header {
        flex-wrap: wrap;
        gap: 0.75rem;
        padding: 0.75rem 1rem;
    }

    .logo-container {
        order: 1;
    }

    .header-controls {
        order: 2;
    }

    .search-container {
        order: 3;
        width: 100%;
        max-width: none;
    }

    /* Welcome screen layout */
    .welcome-section.flex-row {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1.25rem;
        padding: 1.5rem 1rem;
    }

    .creator-profile-large {
        margin-right: 0;
    }

    .welcome-title {
        font-size: 1.5rem;
        line-height: 1.3;
    }

    .welcome-subtitle {
        font-size: 0.9rem;
    }

    /* Exam grid card layout */
    .exam-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1rem 0;
    }

    .exam-card {
        padding: 1.5rem;
    }

    /* Question view layout */
    .question-card {
        padding: 1.5rem 1rem;
        border-radius: var(--radius-md);
    }

    .question-header {
        margin-bottom: 1.25rem;
    }

    .question-text {
        font-size: 1.05rem;
        line-height: 1.5;
        margin-bottom: 1.5rem;
    }

    /* Option / statement cards */
    .option-card {
        padding: 0.85rem 1rem;
        gap: 0.75rem;
    }

    .option-letter {
        width: 2rem;
        height: 2rem;
        min-width: 2rem;
        font-size: 0.9rem;
    }

    .option-text {
        font-size: 0.9rem;
    }

    .statement-item {
        padding: 0.85rem 1rem;
        font-size: 0.9rem;
    }

    /* Nav buttons layout stacking */
    .nav-buttons-container {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .nav-buttons-container>div {
        display: flex;
        width: 100%;
        gap: 0.5rem;
    }

    .nav-buttons-container button {
        flex: 1;
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
    }

    /* Search dropdown full-width alignment */
    .search-results-dropdown {
        max-height: 320px;
        border-radius: var(--radius-md);
    }

    /* Modal responsive updates */
    .modal-content {
        width: 95%;
        max-height: 85vh;
    }

    .modal-body {
        padding: 1rem;
    }

    .search-modal-qtext {
        font-size: 0.95rem;
    }

    .search-modal-opt-item {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }

    /* Dashboard grid mobile layout */
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-card {
        padding: 1.25rem;
    }
}

/* --- Login Overlay and Card --- */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1.5rem;
}

.login-overlay.hidden {
    display: none;
}

.login-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 420px;
    max-width: 100%;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.login-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-top: 0.5rem;
}

.login-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

#login-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    text-align: left;
}

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

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
    background-color: var(--bg-secondary);
}

.login-error-msg {
    color: var(--error);
    background-color: var(--error-light);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.85rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
}

.login-error-msg.hidden {
    display: none;
}

.login-btn {
    width: 100%;
    padding: 0.85rem;
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

/* Shake animation for errors */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

.shake-anim {
    animation: shake 0.4s ease;
}