:root {
    /* Color Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);

    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #00f2fe;
    --error-color: #f5576c;
    --warning-color: #fee140;

    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --text-white: #ffffff;

    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-dark: #1a202c;
    --bg-overlay: rgba(26, 32, 44, 0.6);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.3);

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode {
    --glass-bg: rgba(45, 55, 72, 0.95);
    --glass-border: rgba(255, 255, 255, 0.05);
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
}

/* Color Themes */
body[data-theme="purple"] {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body[data-theme="blue"] {
    --primary-color: #4facfe;
    --secondary-color: #00f2fe;
    --primary-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

body[data-theme="green"] {
    --primary-color: #11998e;
    --secondary-color: #38ef7d;
    --primary-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

body[data-theme="red"] {
    --primary-color: #eb3349;
    --secondary-color: #f45c43;
    --primary-gradient: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
}

body[data-theme="orange"] {
    --primary-color: #f46b45;
    --secondary-color: #eea849;
    --primary-gradient: linear-gradient(135deg, #f46b45 0%, #eea849 100%);
}

body[data-theme="pink"] {
    --primary-color: #f093fb;
    --secondary-color: #f5576c;
    --primary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

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

body {
    font-family: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
}

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.floating-shape {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: -150px;
    left: -150px;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    top: 50%;
    right: -100px;
    animation-delay: 5s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    bottom: -125px;
    left: 30%;
    animation-delay: 10s;
}

.shape-4 {
    width: 180px;
    height: 180px;
    top: 20%;
    right: 20%;
    animation-delay: 15s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(50px, 50px) rotate(90deg);
    }

    50% {
        transform: translate(0, 100px) rotate(180deg);
    }

    75% {
        transform: translate(-50px, 50px) rotate(270deg);
    }
}

/* Container */
.container {
    width: 100%;
    max-width: 800px;
    margin: var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* Screen Management */
.screen {
    display: none;
    animation: fadeIn 0.5s ease;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* Welcome Screen */
.welcome-content {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--glass-shadow);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.logo-container {
    margin-bottom: var(--spacing-md);
}

/* Theme Selector - Minimalist */
.theme-selector {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-sm);
}

.theme-btn {
    background: none;
    border: 3px solid transparent;
    border-radius: 50%;
    padding: 3px;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.theme-btn:hover {
    transform: scale(1.15);
    border-color: rgba(255, 255, 255, 0.5);
}

.theme-btn.active {
    border-color: white;
    box-shadow: 0 0 0 2px var(--primary-color);
}

.theme-btn.active::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 14px;
    font-weight: bold;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.theme-color {
    display: block;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all var(--transition-base);
}

.theme-btn:hover .theme-color {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.logo-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    animation: pulse 2s infinite;
}

.logo-icon svg {
    width: 40px;
    height: 40px;
    color: var(--text-white);
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        box-shadow: var(--shadow-glow);
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 0 40px rgba(102, 126, 234, 0.5);
    }
}

.welcome-title {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.welcome-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* Form Styles */
.user-form {
    max-width: 400px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-base);
    background: var(--bg-secondary);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    background: var(--bg-primary);
}

.form-group input::placeholder {
    color: var(--text-light);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-base);
}

.btn:hover svg {
    transform: translateX(5px);
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-white);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--secondary-gradient);
    color: var(--text-white);
    box-shadow: var(--shadow-lg);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Quiz Screen */
.quiz-header {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--glass-shadow);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.user-avatar {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.user-avatar svg {
    width: 28px;
    height: 28px;
    color: var(--text-white);
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.user-name {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--text-primary);
}

.user-age {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.quiz-progress {
    margin-top: var(--spacing-md);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 600;
}

.progress-text {
    color: var(--text-secondary);
}

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

.progress-bar {
    height: 8px;
    background: #e2e8f0;
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
    width: 0%;
}

/* Question Card */
.quiz-content {
    margin-bottom: var(--spacing-md);
}

.question-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--glass-shadow);
}

.question-number {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--primary-gradient);
    color: var(--text-white);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.question-text {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.4;
}

/* Answers */
.answers-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.answer-option {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.answer-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0.1;
    transition: width var(--transition-base);
}

.answer-option:hover::before {
    width: 100%;
}

.answer-option:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.answer-letter {
    width: 36px;
    height: 36px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--primary-color);
    flex-shrink: 0;
    transition: all var(--transition-base);
}

.answer-option:hover .answer-letter {
    background: var(--primary-gradient);
    color: var(--text-white);
    transform: scale(1.1);
}

.answer-text {
    flex: 1;
    color: var(--text-primary);
    font-weight: 500;
}

.answer-option.correct {
    background: linear-gradient(135deg, #d4fc79 0%, #96e6a1 100%);
    border-color: #48bb78;
    animation: correctAnswer 0.5s ease;
}

.answer-option.correct .answer-letter {
    background: #48bb78;
    color: var(--text-white);
}

.answer-option.wrong {
    background: linear-gradient(135deg, #ffeaa7 0%, #fdcb6e 100%);
    border-color: #f5576c;
    animation: wrongAnswer 0.5s ease;
}

.answer-option.wrong .answer-letter {
    background: #f5576c;
    color: var(--text-white);
}

.answer-option.disabled {
    pointer-events: none;
    opacity: 0.6;
}

@keyframes correctAnswer {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-10px);
    }

    75% {
        transform: translateX(10px);
    }
}

@keyframes wrongAnswer {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-10px) rotate(-2deg);
    }

    75% {
        transform: translateX(10px) rotate(2deg);
    }
}

/* Quiz Footer */
.quiz-footer {
    text-align: center;
}

/* Result Screen */
.result-content {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--glass-shadow);
    text-align: center;
}

.result-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-lg);
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.5s ease;
}

.result-icon svg {
    width: 50px;
    height: 50px;
    color: var(--text-white);
}

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

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

.result-title {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.result-message {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 2px solid #e2e8f0;
    transition: all var(--transition-base);
}

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

.stat-card.highlight {
    background: var(--primary-gradient);
    border-color: var(--primary-color);
}

.stat-card.highlight .stat-icon,
.stat-card.highlight .stat-value,
.stat-card.highlight .stat-label {
    color: var(--text-white);
}

.stat-icon {
    width: 40px;
    height: 40px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.result-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Select Dropdown */
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-base);
    background: var(--bg-secondary);
    cursor: pointer;
    color: var(--text-primary);
}

.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    background: var(--bg-primary);
}

/* Toggle Switches */
.toggle-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 2px solid #e2e8f0;
}

.toggle-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: background var(--transition-base);
}

.toggle-label:hover {
    background: rgba(102, 126, 234, 0.05);
}

.toggle-label input[type="checkbox"] {
    display: none;
}

.toggle-text {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.toggle-text::after {
    content: '(Tidak Aktif)';
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 400;
}

.toggle-label input[type="checkbox"]:checked+.toggle-text::after {
    content: '(Aktif)';
    color: var(--primary-color);
    font-weight: 600;
}

.toggle-slider {
    position: relative;
    width: 52px;
    height: 28px;
    background: #cbd5e0;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: white;
    top: 3px;
    left: 3px;
    transition: all var(--transition-base);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-label input[type="checkbox"]:checked+.toggle-text+.toggle-slider {
    background: var(--primary-gradient);
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.3);
}

.toggle-label input[type="checkbox"]:checked+.toggle-text+.toggle-slider::before {
    transform: translateX(24px);
}

/* Header Top */
.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Timer Display */
.timer-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--warning-gradient);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--text-white);
    animation: timerPulse 1s infinite;
}

.timer-display svg {
    width: 20px;
    height: 20px;
}

.timer-display.warning {
    animation: timerWarning 0.5s infinite;
}

@keyframes timerPulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

@keyframes timerWarning {

    0%,
    100% {
        background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
        transform: scale(1);
    }

    50% {
        background: linear-gradient(135deg, #f5576c 0%, #fa709a 100%);
        transform: scale(1.1);
    }
}

/* Icon Button */
.icon-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.icon-btn svg {
    width: 20px;
    height: 20px;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.icon-btn:hover {
    background: var(--primary-gradient);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.icon-btn:hover svg {
    color: var(--text-white);
}

/* Score Group */
.score-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Streak Display */
.streak-display {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    border-radius: var(--radius-full);
    font-weight: 700;
    color: var(--text-white);
    font-size: 0.875rem;
    animation: streakBounce 0.5s ease;
}

@keyframes streakBounce {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }
}

/* Lifelines */
.lifelines {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 2px solid #e2e8f0;
}

.lifeline-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.lifeline-btn svg {
    width: 18px;
    height: 18px;
}

.lifeline-btn:hover:not(:disabled) {
    background: var(--primary-gradient);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.lifeline-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    border-color: #cbd5e0;
    color: #cbd5e0;
}

/* High Score Display */
.high-score-display {
    margin-bottom: var(--spacing-lg);
    animation: slideInUp 0.5s ease;
}

.high-score-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--success-gradient);
    border-radius: var(--radius-full);
    color: var(--text-white);
    font-weight: 600;
    box-shadow: var(--shadow-lg);
}

.high-score-badge svg {
    width: 24px;
    height: 24px;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* Achievements Display */
.achievements-display {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    animation: slideInUp 0.6s ease;
}

.achievements-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.achievements-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.achievement-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 2px solid var(--primary-color);
    min-width: 100px;
    animation: popIn 0.3s ease;
}

.achievement-badge .badge-icon {
    font-size: 2rem;
}

.achievement-badge .badge-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

@keyframes popIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }

    50% {
        transform: scale(1.1);
    }

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

/* Dark Mode */
body.dark-mode {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
}

body.dark-mode .welcome-content,
body.dark-mode .quiz-header,
body.dark-mode .question-card,
body.dark-mode .result-content {
    background: #2d3748;
    color: var(--text-white);
}

body.dark-mode .form-group label,
body.dark-mode .question-text,
body.dark-mode .user-name,
body.dark-mode .stat-value,
body.dark-mode .achievements-title,
body.dark-mode .toggle-text,
body.dark-mode .answer-text {
    color: var(--text-white);
}

body.dark-mode .form-group input,
body.dark-mode .form-select,
body.dark-mode .answer-option {
    background: #1a202c;
    border-color: #4a5568;
    color: var(--text-white);
}

body.dark-mode .answer-letter {
    background: #1a202c;
}

body.dark-mode .stat-card {
    background: #1a202c;
    border-color: #4a5568;
}

body.dark-mode .icon-btn {
    background: #1a202c;
}

body.dark-mode .icon-btn svg {
    color: var(--text-white);
}

body.dark-mode .achievements-display {
    background: #1a202c;
}

body.dark-mode .achievement-badge {
    background: #2d3748;
}

body.dark-mode .toggle-group {
    background: #1a202c;
    border-color: #4a5568;
}

body.dark-mode .toggle-label:hover {
    background: rgba(102, 126, 234, 0.1);
}

/* Speed Bonus Notification */
.speed-bonus-notification {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.4);
    animation: speedBonusPop 0.5s ease-out;
    z-index: 1000;
}

@keyframes speedBonusPop {
    0% {
        transform: scale(0) rotate(-10deg);
        opacity: 0;
    }

    50% {
        transform: scale(1.2) rotate(5deg);
    }

    100% {
        transform: scale(1) rotate(0deg);
        transform: scale(1);
        opacity: 1;
    }
}

/* Leaderboard Screen */
.leaderboard-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.leaderboard-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
    max-height: 600px;
    overflow-y: auto;
    padding-right: var(--spacing-xs);
}

/* Custom scrollbar for leaderboard - Premium Look */
.leaderboard-list::-webkit-scrollbar {
    width: 6px;
}

.leaderboard-list::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.02);
    border-radius: 10px;
}

.leaderboard-list::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 10px;
    border: 2px solid transparent;
}

.leaderboard-list::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-gradient);
}

.leaderboard-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.leaderboard-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

/* Top 3 special styling */
.leaderboard-item.rank-1 {
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    border-color: #ffd700;
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
}

.leaderboard-item.rank-2 {
    background: linear-gradient(135deg, #c0c0c0 0%, #e8e8e8 100%);
    border-color: #c0c0c0;
    box-shadow: 0 4px 20px rgba(192, 192, 192, 0.3);
}

.leaderboard-item.rank-3 {
    background: linear-gradient(135deg, #cd7f32 0%, #e6a157 100%);
    border-color: #cd7f32;
    box-shadow: 0 4px 20px rgba(205, 127, 50, 0.3);
}

.rank-badge {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.rank-badge.gold,
.rank-badge.silver,
.rank-badge.bronze {
    font-size: 1.5rem;
    background: transparent;
}

.player-info {
    flex: 1;
    min-width: 0;
}

.player-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.player-details {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.player-score {
    flex-shrink: 0;
    text-align: right;
}

.score-value {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Empty state */
.leaderboard-empty {
    text-align: center;
    padding: var(--spacing-xxl);
    color: var(--text-secondary);
}

.leaderboard-empty p:first-child {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

/* Dark mode adjustments */
body.dark-mode .leaderboard-item {
    background: var(--bg-secondary);
    border-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode .leaderboard-item:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

body.dark-mode .leaderboard-item.rank-1,
body.dark-mode .leaderboard-item.rank-2,
body.dark-mode .leaderboard-item.rank-3 {
    background: var(--bg-secondary);
    border-width: 3px;
}

body.dark-mode .rank-badge {
    background: rgba(255, 255, 255, 0.05);
}

/* Responsive */
@media (max-width: 768px) {
    .leaderboard-list {
        max-height: 500px;
    }

    .leaderboard-item {
        padding: var(--spacing-sm);
    }

    .rank-badge {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }

    .rank-badge.gold,
    .rank-badge.silver,
    .rank-badge.bronze {
        font-size: 1.2rem;
    }

    .player-name {
        font-size: 1rem;
    }

    .player-details {
        font-size: 0.75rem;
    }

    .score-value {
        font-size: 1.2rem;
    }
}

/* Achievements Display */
Leaderboard */ body.dark-mode .leaderboard-item {
    background: #2d3748;
}

body.dark-mode .leaderboard-item:hover {
    background: #374151;
}

body.dark-mode .leaderboard-item.rank-1,
body.dark-mode .leaderboard-item.rank-2,
body.dark-mode .leaderboard-item.rank-3 {
    opacity: 0.95;
}


/* Improved Responsive Design */
@media (max-width: 768px) {
    :root {
        --spacing-md: 1.25rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 2.5rem;
    }

    .container {
        margin: var(--spacing-sm);
        padding: 0 var(--spacing-xs);
    }

    .welcome-content,
    .question-card,
    .result-content {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .welcome-title,
    .result-title {
        font-size: 1.85rem;
    }

    .welcome-subtitle {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }

    .question-text {
        font-size: 1.25rem;
        margin-bottom: var(--spacing-lg);
    }

    .user-avatar {
        width: 40px;
        height: 40px;
    }

    .user-avatar svg {
        width: 22px;
        height: 22px;
    }

    .user-name {
        font-size: 1rem;
    }

    .user-age {
        font-size: 0.75rem;
    }

    .header-top {
        gap: var(--spacing-sm);
    }

    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-value {
        font-size: 1.5rem;
    }
}

@media (max-width: 576px) {
    .result-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .stat-card.highlight {
        grid-column: span 2;
    }

    .lifelines {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xs);
    }

    .header-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-controls {
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 480px) {

    .welcome-title,
    .result-title {
        font-size: 1.6rem;
    }

    .welcome-content,
    .question-card,
    .result-content {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .btn {
        width: 100%;
        padding: var(--spacing-md);
    }

    .btn-primary,
    .btn-secondary {
        border-radius: var(--radius-md);
    }

    .answer-option {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }

    .answer-letter {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }

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

    .logo-icon {
        width: 60px;
        height: 60px;
    }

    .logo-icon svg {
        width: 30px;
        height: 30px;
    }

    .score-group {
        flex-direction: row;
        font-size: 0.75rem;
    }
}

/* Fix for long names/categories */
.form-select,
.form-group input {
    text-overflow: ellipsis;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Better focus states for mobile touch */
.answer-option:active {
    background: var(--bg-primary);
    transform: scale(0.98);
}

/* Prevent text zoom on mobile */
input,
select,
textarea {
    font-size: 16px !important;
}