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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    color: white;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.game-setup, .game-area {
    background: white;
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.url-input-section {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.duration-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 15px;
}

.btn-duration {
    padding: 15px 20px;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: white;
}

.btn-hard {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
}

.btn-hard:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.4);
}

.btn-medium {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
}

.btn-medium:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(243, 156, 18, 0.4);
}

.btn-easy {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
}

.btn-easy:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.4);
}

label {
    font-weight: 600;
    color: #555;
    font-size: 1.1rem;
}

textarea {
    width: 100%;
    height: 150px;
    padding: 15px;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    font-family: inherit;
    font-size: 14px;
    resize: vertical;
    transition: border-color 0.3s ease;
}

textarea:focus {
    outline: none;
    border-color: #667eea;
}

.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #f8f9fa;
    color: #555;
    border: 2px solid #e1e5e9;
}

.btn-secondary:hover {
    background: #e9ecef;
    transform: translateY(-1px);
}

.score-board {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
    color: white;
    font-weight: 600;
    font-size: 1.2rem;
}

.player-section {
    margin-bottom: 30px;
    text-align: center;
}

#player {
    margin-bottom: 20px;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.guess-section {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
}

input[type="text"] {
    padding: 15px;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus {
    outline: none;
    border-color: #667eea;
}

.result {
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
    font-size: 1.1rem;
}

.result.correct {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.result.incorrect {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.result.partial {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

.countdown {
    text-align: center;
    padding: 20px;
    margin: 20px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    animation: pulse 1s infinite;
}

.countdown-number {
    font-size: 2rem;
    font-weight: bold;
    margin-left: 10px;
}

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

.game-over {
    text-align: center;
    padding: 40px;
}

.game-over h2 {
    color: #667eea;
    font-size: 2.5rem;
    margin-bottom: 30px;
}

.final-stats {
    background: white;
    border-radius: 15px;
    padding: 30px;
    margin: 20px 0;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.final-score {
    font-size: 2rem;
    font-weight: bold;
    color: #667eea;
}

.game-over-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.game-controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.instructions {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.instructions h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.instructions ol {
    padding-left: 20px;
}

.instructions li {
    margin-bottom: 8px;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .game-setup, .game-area {
        padding: 20px;
    }
    
    .score-board {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .controls, .game-controls {
        flex-direction: column;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
    }
}