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

:root {
    --primary-color: #ff003c;
    --secondary-color: #00ffea;
    --accent-color: #ffcc00;
    --success-color: #00ff7f;
    --error-color: #ff3333;
    --warning-color: #ffaa00;
    --info-color: #0099ff;
    
    --dark-bg: #0a0a16;
    --darker-bg: #050510;
    --card-bg: rgba(20, 20, 40, 0.8);
    --card-border: rgba(0, 255, 234, 0.3);
    
    --text-color: #ffffff;
    --text-muted: #a0a0c0;
    --text-glow: rgba(255, 255, 255, 0.8);
    
    --gradient-primary: linear-gradient(135deg, var(--primary-color), #ff0066);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), #00ccff);
    --gradient-accent: linear-gradient(135deg, var(--accent-color), #ffdd00);
    --gradient-bg: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 50%, #1a1a2e 100%);
    
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(255, 0, 60, 0.4);
    --shadow-glow-blue: 0 0 20px rgba(0, 255, 234, 0.4);
    
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --border-radius-xl: 30px;
}

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--gradient-bg);
    color: var(--text-color);
    min-height: 100vh;
    overflow: hidden;
    line-height: 1.6;
}

#game-container {
    width: 100vw;
    height: 100vh;
    position: relative;
    background: var(--gradient-bg);
}

/* Loading Screen */
#loading-screen {
    background: var(--darker-bg);
    z-index: 1000;
}

.loading-content {
    text-align: center;
    animation: fadeIn 0.5s ease-in;
}

.loading-animation {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
}

.math-symbol {
    font-size: 3rem;
    animation: bounce 2s infinite;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 10px rgba(255, 0, 60, 0.5));
}


.math-symbol:nth-child(2) { animation-delay: 0.2s; background: var(--gradient-secondary); }
.math-symbol:nth-child(3) { animation-delay: 0.4s; background: var(--gradient-accent); }
.math-symbol:nth-child(4) { animation-delay: 0.6s; background: var(--gradient-primary); }

.loading-bar {
    width: 300px;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin: 2rem auto;
    overflow: hidden;
    position: relative;
}

.loading-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    animation: loadingProgress 2s ease-in-out infinite;
    position: relative;
}

.loading-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 2s ease-in-out infinite;
}

/* Screens */
.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
    background: var(--gradient-bg);
    padding: 1rem;
}

.screen.active {
    display: flex;
}

/* Splash Screen */
.splash-content {
    text-align: center;
    animation: fadeInUp 1s ease-out;
    max-width: 800px;
    width: 100%;
}

.title-container {
    margin-bottom: 3rem;
}

.game-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 5rem;
    font-weight: 900;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(255, 0, 60, 0.5);
    margin-bottom: 1rem;
    letter-spacing: 4px;
    animation: titleGlow 3s ease-in-out infinite;
}

.game-subtitle {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: var(--secondary-color);
    letter-spacing: 3px;
    text-shadow: 0 0 20px rgba(0, 255, 234, 0.5);
}

.feature-highlights {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 3rem 0;
    flex-wrap: wrap;
}

.feature {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
    font-weight: 600;
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-blue);
}

.splash-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    margin: 3rem 0;
}

.stats-preview {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
}

.stat-preview {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    text-shadow: 0 0 10px rgba(255, 204, 0, 0.5);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-tertiary {
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    min-width: 250px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 0, 60, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
    box-shadow: var(--shadow-glow-blue);
}

.btn-secondary:hover {
    background: rgba(0, 255, 234, 0.1);
    box-shadow: 0 0 25px rgba(0, 255, 234, 0.5);
    transform: translateY(-2px);
}

.btn-tertiary {
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
}

.btn-tertiary:hover {
    background: rgba(255, 204, 0, 0.1);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
}

.btn-icon {
    font-size: 1.2rem;
}

/* Form Screens */
.form-container {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-lg);
    text-align: center;
    width: 90%;
    max-width: 450px;
    backdrop-filter: blur(10px);
}

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

.form-header h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: 1.8rem;
}

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

.auth-form {
    margin-bottom: 1.5rem;
}

.input-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.input-group input {
    width: 100%;
    padding: 1rem 3rem 1rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    color: var(--text-color);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 15px rgba(0, 255, 234, 0.3);
}

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

.input-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
}

/* Game Screen */
#game-screen {
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    background: var(--card-bg);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
}

.player-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.player-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.player-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.level-badge {
    background: var(--gradient-secondary);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--dark-bg);
}

.game-stats {
    display: flex;
    gap: 2rem;
}

.stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.stat-icon {
    font-size: 1.2rem;
}

.stat-value {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
}

.health-container {
    text-align: center;
    min-width: 200px;
}

.health-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.health-icon {
    font-size: 1.2rem;
}

.health-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.health-bar {
    width: 100%;
    height: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--primary-color);
    position: relative;
}

.health-fill {
    height: 100%;
    border-radius: 10px;
    transition: width 0.3s ease, background 0.3s ease;
    width: 100%;
    position: relative;
    z-index: 2;
}

.health-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: healthGlow 2s ease-in-out infinite;
    border-radius: 10px;
}

/* Game Content */
.game-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 800px;
    gap: 2rem;
}

.question-container {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--card-border);
    box-shadow: var(--shadow-lg);
    width: 100%;
    backdrop-filter: blur(10px);
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.question-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.question-counter {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-color);
    font-weight: 600;
}

.difficulty-badge {
    background: var(--gradient-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
}

.timer-container {
    position: relative;
}

.timer-circle {
    width: 60px;
    height: 60px;
    position: relative;
}

.timer-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.timer-circle-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.1);
    stroke-width: 3;
}

.timer-circle-fill {
    fill: none;
    stroke: var(--accent-color);
    stroke-width: 3;
    stroke-linecap: round;
    transition: stroke-dasharray 1s linear;
    stroke-dasharray: 100 100;
}

.timer-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--text-color);
}

.question-text {
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 2.5rem;
    font-weight: 600;
    line-height: 1.4;
    background: linear-gradient(45deg, var(--text-color), var(--text-muted));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}


.answers-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.answer-btn {
    padding: 1.2rem 2rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--card-border);
    border-radius: var(--border-radius);
    color: var(--text-color);
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Rajdhani', sans-serif;
    position: relative;
    overflow: hidden;
}

.answer-btn:hover {
    background: rgba(0, 255, 234, 0.2);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-blue);
}

.answer-btn.correct {
    background: var(--success-color);
    border-color: var(--success-color);
    color: var(--dark-bg);
    transform: scale(1.05);
}

.answer-btn.wrong {
    background: var(--error-color);
    border-color: var(--error-color);
    color: white;
}

.answer-btn:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.question-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.streak-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.streak-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.streak-fire {
    font-size: 1.2rem;
    animation: firePulse 1s ease-in-out infinite;
}

.streak-count {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    color: var(--accent-color);
}

/* Powerups */
.powerups-container {
    width: 100%;
}

.powerup-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
}

.powerup-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.powerup-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.powerup-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    color: var(--text-color);
    font-family: 'Rajdhani', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 80px;
}

.powerup-btn:hover:not(:disabled) {
    background: rgba(255, 204, 0, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 204, 0, 0.3);
}

.powerup-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.powerup-icon {
    font-size: 1.5rem;
}

.powerup-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.powerup-cost {
    font-size: 0.8rem;
    color: var(--accent-color);
    font-family: 'Orbitron', sans-serif;
}

/* Messages */
.roast-message {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--gradient-primary);
    color: white;
    padding: 1.5rem 2.5rem;
    border-radius: var(--border-radius);
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    text-align: center;
    z-index: 1000;
    animation: roastAnimation 2.5s ease-in-out;
    display: none;
    box-shadow: var(--shadow-glow);
    font-size: 1.2rem;
}

.combo-message {
    position: fixed;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-accent);
    color: var(--dark-bg);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    text-align: center;
    z-index: 1000;
    animation: comboAnimation 1.5s ease-in-out;
    display: none;
    box-shadow: var(--shadow-glow);
}

/* Completion Screens */
.completion-container, .game-over-container {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--card-border);
    text-align: center;
    max-width: 600px;
    width: 90%;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
}

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

.completion-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: bounce 2s infinite;
}

.completion-container h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: 2.2rem;
}

.completion-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.completion-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 2.5rem 0;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem 1rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
}

.stat-card-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
}

.stat-card-label {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.stat-card-value {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
}

.performance-rating {
    margin: 2rem 0;
}

.rating-stars {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.performance-text {
    font-family: 'Orbitron', sans-serif;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 1.2rem;
}

/* Game Over Screen */
.game-over-header {
    margin-bottom: 2rem;
}

.game-over-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: shake 0.5s ease-in-out;
}

.game-over-container h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 2.2rem;
}

.final-roast-container {
    margin: 2rem 0;
}

.final-roast {
    font-size: 1.3rem;
    color: var(--primary-color);
    font-weight: 600;
    font-style: italic;
}

.final-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 2rem 0;
}

.final-stat {
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
}

.final-stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.final-stat-value {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.game-over-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

/* Settings Panel */
.settings-panel {
    position: fixed;
    top: 50%;
    right: -300px;
    transform: translateY(-50%);
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    border: 1px solid var(--card-border);
    border-right: none;
    transition: right 0.3s ease;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.settings-panel.open {
    right: 0;
}

.settings-toggle {
    position: absolute;
    left: -50px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    color: white;
    padding: 1rem;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.settings-toggle:hover {
    background: var(--gradient-secondary);
}

.settings-content h3 {
    font-family: 'Orbitron', sans-serif;
    color: var(--secondary-color);
    margin-bottom: 1rem;
    text-align: center;
}

.setting-group {
    margin-bottom: 1rem;
}

.setting-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: background 0.3s ease;
}

.setting-label:hover {
    background: rgba(255, 255, 255, 0.1);
}

.setting-text {
    font-size: 0.9rem;
    color: var(--text-color);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { 
        opacity: 0;
        transform: translateY(30px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

@keyframes loadingProgress {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

@keyframes titleGlow {
    0%, 100% { text-shadow: 0 0 30px rgba(255, 0, 60, 0.5); }
    50% { text-shadow: 0 0 40px rgba(255, 0, 60, 0.8), 0 0 60px rgba(0, 255, 234, 0.6); }
}

@keyframes roastAnimation {
    0% { 
        transform: translate(-50%, -50%) scale(0.8); 
        opacity: 0; 
    }
    20% { 
        transform: translate(-50%, -50%) scale(1.1); 
        opacity: 1; 
    }
    80% { 
        transform: translate(-50%, -50%) scale(1.1); 
        opacity: 1; 
    }
    100% { 
        transform: translate(-50%, -50%) scale(1); 
        opacity: 0; 
    }
}

@keyframes comboAnimation {
    0% { 
        transform: translateX(-50%) scale(0.5); 
        opacity: 0; 
    }
    50% { 
        transform: translateX(-50%) scale(1.2); 
        opacity: 1; 
    }
    100% { 
        transform: translateX(-50%) scale(1); 
        opacity: 0; 
    }
}

@keyframes healthGlow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes firePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 0.5s ease-in-out;
}

/* Utility Classes */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }