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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

.yakdiel-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 15px;
    border-radius: 50%;
    background: white;
    padding: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.yakdiel-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

h1 {
    color: white;
    font-size: 2.5em;
    margin-bottom: 5px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.subtitle {
    color: #e0e0e0;
    font-size: 1.1em;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.welcome-message {
    background: white;
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    font-size: 1.2em;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn {
    padding: 15px 25px;
    border: none;
    border-radius: 50px;
    font-size: 1.1em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    display: block;
    width: 100%;
}

.btn-primary {
    background: linear-gradient(45deg, #FF6B6B, #FF8E53);
    color: white;
}

.btn-secondary {
    background: linear-gradient(45deg, #4ECDC4, #44A08D);
    color: white;
}

.btn-tertiary {
    background: linear-gradient(45deg, #FFD93D, #FF9B40);
    color: white;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.game-area {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.question-container h3 {
    margin-bottom: 20px;
    color: #333;
    font-size: 1.3em;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option-btn {
    padding: 15px;
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    font-size: 1em;
}

.option-btn:hover {
    background: #e9ecef;
    border-color: #4ECDC4;
}

.option-btn.correct {
    background: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.option-btn.incorrect {
    background: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.feedback {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: bold;
}

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

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

.topic-input {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.topic-input input {
    width: 100%;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1em;
    margin-bottom: 15px;
}

footer {
    text-align: center;
    margin-top: 30px;
    color: white;
    opacity: 0.8;
}

@media (min-width: 768px) {
    .controls {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .btn {
        width: auto;
        flex: 1;
        min-width: 200px;
        max-width: 250px;
    }
    
    .options {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }
}

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

.bounce {
    animation: bounce 0.6s;
}