* {
    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;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 900px;
    position: relative;
}

/* Settings Button */
.settings-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    z-index: 1000;
}

.settings-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

/* Screens */
.screen {
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Start Screen */
.game-header {
    text-align: center;
    margin-bottom: 40px;
}

.game-title {
    font-size: 3.5rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    margin-bottom: 10px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.game-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
}

.input-section {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.input-group {
    margin-bottom: 25px;
}

.input-group label {
    display: block;
    font-size: 1.1rem;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
}

.input-group input {
    width: 100%;
    padding: 15px;
    font-size: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    transition: border-color 0.3s;
}

.input-group input:focus {
    outline: none;
    border-color: #667eea;
}

/* Buttons */
.btn {
    padding: 12px 30px;
    font-size: 1rem;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    font-weight: 600;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

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

.btn-secondary {
    background: #f0f0f0;
    color: #333;
}

.btn-large {
    width: 100%;
    padding: 18px;
    font-size: 1.2rem;
    margin-top: 20px;
}

/* Loading Screen */
.loading-content {
    text-align: center;
    background: white;
    border-radius: 20px;
    padding: 60px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid #f0f0f0;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    font-size: 1.2rem;
    color: #666;
}

/* Question Screen */
.question-header {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.progress-bar {
    width: 100%;
    height: 20px;
    background: #f0f0f0;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transition: width 0.5s ease;
    border-radius: 10px;
}

.question-counter {
    text-align: center;
    color: #666;
    font-weight: 600;
}

.question-content {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.question-text {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
}

.choices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.choice-card {
    border: 3px solid #e0e0e0;
    border-radius: 15px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.3s;
    background: white;
}

.choice-card:hover {
    border-color: #667eea;
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.choice-card.selected {
    border-color: #764ba2;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

.choice-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 10px;
}

.choice-text {
    text-align: center;
    font-weight: 600;
    color: #333;
}

/* Result Screen */
.result-content {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    text-align: center;
}

.result-title {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 30px;
}

.result-image-container {
    position: relative;
    margin-bottom: 30px;
}

#resultImage {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: none;
}

#resultImage.loaded {
    display: block;
}

.result-loading {
    padding: 60px;
}

.result-loading.hidden {
    display: none;
}

.result-description {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

.result-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: white;
    padding: 40px;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    position: relative;
    animation: slideUp 0.3s;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    right: 20px;
    top: 15px;
}

.close:hover {
    color: #000;
}

.modal h2 {
    margin-bottom: 20px;
    color: #333;
}

.settings-form label {
    display: block;
    margin-bottom: 10px;
    color: #666;
    font-weight: 600;
}

.settings-form input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 1rem;
}

.settings-form input:focus {
    outline: none;
    border-color: #667eea;
}

.error-modal {
    border: 3px solid #ff6b6b;
}

.error-modal h2 {
    color: #ff6b6b;
}

#errorMessage {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.5;
}

/* Responsive Design */
@media (max-width: 768px) {
    .game-title {
        font-size: 2.5rem;
    }
    
    .choices-grid {
        grid-template-columns: 1fr;
    }
    
    .input-section,
    .question-content,
    .result-content {
        padding: 20px;
    }
    
    .result-actions {
        flex-direction: column;
    }
    
    .result-actions .btn {
        width: 100%;
    }
}