/* Основные стили для Школьного курса */

:root {
    --primary-color: #6366f1;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --danger-color: #ef4444;
    --text-color: #1f2937;
    --bg-color: #f9fafb;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

html {
    font-size: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    padding: 40px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 10px;
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

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

main {
    min-height: 500px;
}

.registration-section {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    max-width: 500px;
    margin: 0 auto;
}

.registration-section h2 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.registration-section p {
    color: #6b7280;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.btn-primary,
.btn-secondary {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background-color: #4f46e5;
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #059669;
}

.course-section h2 {
    margin-bottom: 30px;
    color: var(--primary-color);
}

.modules-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.module-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
    transition: transform 0.3s, box-shadow 0.3s;
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

.module-card h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.module-card p {
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.module-card button {
    width: 100%;
}

.learning-section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.learning-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    padding: 10px 20px;
    border: none;
    background: none;
    font-size: 1rem;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-btn:hover {
    color: var(--primary-color);
}

.tab-content {
    min-height: 400px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

#dialogContainer {
    display: flex;
    flex-direction: column;
    height: 500px;
}

.messages {
    flex: 1;
    overflow-y: auto;
    margin-bottom: 20px;
    padding: 10px;
    background-color: #f3f4f6;
    border-radius: 5px;
}

.message {
    margin-bottom: 15px;
    padding: 10px 15px;
    border-radius: 5px;
    max-width: 80%;
}

.message.user {
    background-color: var(--primary-color);
    color: white;
    margin-left: auto;
    text-align: right;
}

.message.assistant {
    background-color: white;
    border: 1px solid var(--border-color);
}

#dialogForm {
    display: grid;
    grid-template-columns: 1fr auto; /* поле растягивается, кнопка по содержимому */
    gap: 10px;
}

#dialogForm input {
width: 100%;
}

#dialogForm button {
    width: auto;       /* не растягивать */
    white-space: nowrap;

}

.question-container {
    background: #f3f4f6;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.question-container h4 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.answer-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.answer-option {
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
}

.answer-option:hover {
    background-color: #f0f9ff;
    border-color: var(--primary-color);
}

.answer-option input[type="radio"] {
    margin-right: 10px;
}

/* Стили для динамических тестов */
.dynamic-answer-input {
    width: 100%;
    max-width: 400px;
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

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

.input-answer-wrapper {
    margin: 10px 0;
}

.detailed-results {
    margin-top: 20px;
    text-align: left;
}

.result-item {
    padding: 8px 12px;
    margin: 5px 0;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.result-item.correct {
    background-color: #d4edda;
    color: #155724;
}

.result-item.incorrect {
    background-color: #f8d7da;
    color: #721c24;
}

.result-icon {
    font-weight: bold;
    font-size: 1.2em;
}

.error-message {
    color: #721c24;
    background-color: #f8d7da;
    padding: 15px;
    border-radius: 8px;
}

.test-results {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

.result-score {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.result-grade {
    font-size: 1.5rem;
    padding: 10px 20px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 5px;
    display: inline-block;
    margin-bottom: 20px;
}

footer {
    text-align: center;
    padding: 20px;
    color: #6b7280;
    margin-top: 40px;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .modules-container {
        grid-template-columns: 1fr;
    }
    
    .learning-tabs {
        flex-wrap: wrap;
    }
    
    .message {
        max-width: 100%;
    }
}