* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
    z-index: -1;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.main-container {
    display: flex;
    gap: 1.5rem;
    max-width: 900px;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    transition: all 0.3s ease;
    animation: fadeIn 0.5s ease-out;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

.quiz-container {
    flex: 2;
    min-width: 0;
}

.results-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.results-panel {
    background: #f8f9fa;
    padding: 0.8rem;
    border-radius: 12px;
    box-shadow: 0 3px 5px rgba(0, 0, 0, 0.05);
    max-height: 250px;
    overflow-y: auto;
}

.results-panel h3 {
    color: #2c3e50;
    margin-bottom: 0.8rem;
    text-align: center;
    font-size: 1rem;
}

#answers-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.answer-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    animation: slideIn 0.3s ease-out;
}

.answer-item.correct {
    background: linear-gradient(45deg, #e8f5e9, #c8e6c9);
    color: #2e7d32;
}

.answer-item.close {
    background: linear-gradient(45deg, #fff3e0, #ffe0b2);
    color: #e65100;
}

.answer-item.wrong {
    background: linear-gradient(45deg, #ffebee, #ffcdd2);
    color: #c62828;
}

.answer-item.kacau {
    background: linear-gradient(45deg, #424242, #212121);
    color: white;
}

.answer-number {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 600;
    font-size: 0.8rem;
    background: white;
}

.answer-item.correct .answer-number {
    background: #4caf50;
    color: white;
}

.answer-item.close .answer-number {
    background: #ff9800;
    color: white;
}

.answer-item.wrong .answer-number {
    background: #f44336;
    color: white;
}

.answer-item.kacau .answer-number {
    background: #212121;
    color: white;
}

.answer-status {
    font-size: 0.9rem;
    font-weight: 500;
}

.header {
    text-align: center;
    margin-bottom: 1rem;
}

.progress-container {
    margin-top: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.progress-bar {
    flex: 1;
    height: 5px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background: linear-gradient(45deg, #2196f3, #1976d2);
    width: 0%;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

#progress-text {
    font-weight: 600;
    color: #2c3e50;
    font-size: 0.8rem;
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 0.8rem;
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(45deg, #2c3e50, #3498db);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.question-card {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 3px 5px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    animation: slideIn 0.3s ease-out;
    margin-bottom: 1rem;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

.question-card h2 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: #2c3e50;
    line-height: 1.4;
}

.option {
    display: block;
    width: 100%;
    padding: 1rem;
    margin: 0.6rem 0;
    background-color: white;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.05rem;
    text-align: left;
    position: relative;
    overflow: hidden;
    animation: fadeIn 0.3s ease-out;
    animation-fill-mode: both;
    line-height: 1.4;
}

.option:nth-child(1) { animation-delay: 0.1s; }
.option:nth-child(2) { animation-delay: 0.2s; }
.option:nth-child(3) { animation-delay: 0.3s; }
.option:nth-child(4) { animation-delay: 0.4s; }

.option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: #3498db;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: scaleY(0);
    transform-origin: top;
}

.option:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    border-color: #3498db;
    background: #f0f7ff;
    color: #2c3e50;
}

.option:hover::before {
    opacity: 1;
    transform: scaleY(1);
}

.option::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(52, 152, 219, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.option:hover::after {
    transform: translateX(100%);
}

.option.selected {
    background: linear-gradient(45deg, #e3f2fd, #bbdefb);
    border-color: #2196f3;
    color: #1976d2;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(33, 150, 243, 0.2);
}

.option.selected::before {
    opacity: 1;
    transform: scaleY(1);
    background: #2196f3;
}

#result-container {
    margin-top: 0;
}

.result-card {
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 12px;
    box-shadow: 0 3px 5px rgba(0, 0, 0, 0.05);
    animation: slideIn 0.3s ease-out;
}

.result-card h2 {
    font-size: 0.95rem;
    margin-bottom: 0.8rem;
    color: #2c3e50;
}

#final-feedback {
    font-size: 0.9rem;
    margin: 0.8rem 0;
    padding: 0.8rem;
    border-radius: 8px;
    animation: fadeIn 0.5s ease-out;
}

#final-feedback.good {
    background: linear-gradient(45deg, #e8f5e9, #c8e6c9);
    color: #2e7d32;
}

#final-feedback.medium {
    background: linear-gradient(45deg, #fff3e0, #ffe0b2);
    color: #e65100;
}

#final-feedback.poor {
    background: linear-gradient(45deg, #ffebee, #ffcdd2);
    color: #c62828;
}

button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    width: 100%;
    padding: 0.8rem;
    margin-top: 0.8rem;
    background: linear-gradient(45deg, #2196f3, #1976d2);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

button:hover::before {
    left: 100%;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(33, 150, 243, 0.3);
}

button:active {
    transform: translateY(0);
}

#check-button {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: auto;
    padding: 0.8rem 1.5rem;
    margin: 0;
    background: linear-gradient(45deg, #4caf50, #2e7d32);
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
    z-index: 100;
}

#check-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

#check-button:active {
    transform: translateY(0);
}

#next-button {
    background: linear-gradient(45deg, #2196f3, #1976d2);
}

#restart-button {
    background: linear-gradient(45deg, #f44336, #d32f2f);
}

.hidden {
    display: none;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: 15px;
    width: 90%;
    max-width: 400px;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.modal.show .modal-content {
    transform: translateY(0);
    animation: modalPop 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalPop {
    0% { transform: scale(0.9); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.close-modal {
    display: none;
}

.modal-body {
    padding: 1.5rem;
    text-align: center;
}

.feedback-icon {
    font-size: 2.5rem;
    margin-bottom: 0.8rem;
    color: #2196f3;
    animation: bounce 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.cf-score {
    margin-top: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid #e0e0e0;
}

@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
        padding: 0.8rem;
    }
    
    .results-panel {
        max-height: 180px;
    }
    
    .results-section {
        gap: 0.6rem;
    }
    
    h1 {
        font-size: 1.3rem;
    }
    
    .question-card h2 {
        font-size: 1.15rem;
    }
    
    .option {
        padding: 0.9rem;
        font-size: 1rem;
    }
    
    button {
        padding: 0.8rem;
        font-size: 0.9rem;
    }
    
    .modal-content {
        width: 95%;
    }
    
    .result-card h2 {
        font-size: 0.9rem;
    }
    
    #final-feedback {
        font-size: 0.85rem;
        padding: 0.7rem;
    }
    
    #check-button {
        bottom: 1rem;
        right: 1rem;
        padding: 0.7rem 1.2rem;
    }
    
    .option:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    }
    
    .option.selected {
        transform: translateY(-2px);
        box-shadow: 0 4px 8px rgba(33, 150, 243, 0.2);
    }
}