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

body {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 600px;
}

/* Header */
.game-header {
    text-align: center;
    margin-bottom: 30px;
    color: white;
}

.game-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 300;
}

/* Main Game Card */
.game-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
}

/* Difficulty Selector */
.difficulty-selector {
    margin-bottom: 30px;
    text-align: center;
}

.difficulty-selector label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.difficulty-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.difficulty-btn {
    flex: 1;
    min-width: 100px;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 600;
    border: 2px solid #e0e0e0;
    background: white;
    color: #333;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.difficulty-btn:hover {
    border-color: #2a5298;
    background: #f0f4f8;
}

.difficulty-btn.active {
    background: #2a5298;
    color: white;
    border-color: #2a5298;
}

/* Game Info */
.game-info {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

.game-info h2 {
    font-size: 1.5rem;
    color: #2a5298;
    margin-bottom: 15px;
    font-weight: 600;
}

.info-row {
    display: flex;
    justify-content: space-around;
    gap: 20px;
    flex-wrap: wrap;
}

.timer-display,
.attempts-display {
    font-size: 1.1rem;
    color: #666;
    font-weight: 500;
}

#stopwatch {
    color: #e74c3c;
    font-weight: 700;
}

#attempts {
    color: #27ae60;
    font-weight: 700;
}

/* Guess Section */
.guess-section {
    margin-bottom: 25px;
    text-align: center;
}

.guess-section label {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

#guess {
    width: 100%;
    padding: 14px 16px;
    font-size: 1.2rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 15px;
    transition: border-color 0.3s ease;
    font-weight: 600;
}

#guess:focus {
    outline: none;
    border-color: #2a5298;
    box-shadow: 0 0 0 3px rgba(42, 82, 152, 0.1);
}

#execBtn {
    width: 100%;
    padding: 14px 24px;
    font-size: 1.1rem;
    font-weight: 700;
    background: #e74c3c;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

#execBtn:hover {
    background: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
}

#execBtn:active {
    transform: translateY(0);
}

/* Feedback Section */
.feedback-section {
    margin: 25px 0;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#text {
    font-size: 1.2rem;
    color: #2a5298;
    text-align: center;
    font-weight: 500;
    line-height: 1.6;
}

/* New Game Button */
.new-game-section {
    text-align: center;
    margin-top: 25px;
}

.new-game-btn {
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 600;
    background: #27ae60;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.new-game-btn:hover {
    background: #229954;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.3);
}

/* Footer */
.game-footer {
    text-align: center;
    margin-top: 40px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

#developer {
    margin: 0;
}

/* Responsive Design */
@media (max-width: 600px) {
    .game-card {
        padding: 24px;
    }

    .game-header h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .difficulty-buttons {
        gap: 8px;
    }

    .difficulty-btn {
        min-width: 80px;
        padding: 8px 12px;
        font-size: 0.85rem;
    }

    .game-info h2 {
        font-size: 1.2rem;
    }

    .info-row {
        gap: 15px;
    }

    .timer-display,
    .attempts-display {
        font-size: 1rem;
    }
}