/* Основные стили */
* {
    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;
    color: #333;
}

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

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

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

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

/* Dev режим */
.dev-mode {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.dev-mode h3 {
    margin-bottom: 20px;
    color: #333;
}

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

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

#code-input {
    width: 100%;
    height: 200px;
    padding: 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    resize: vertical;
    transition: border-color 0.3s ease;
}

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

#language-select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    background: white;
    cursor: pointer;
}

/* Кнопки */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(17, 153, 142, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(17, 153, 142, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-1px);
}

.btn-warning {
    background: #ffc107;
    color: #212529;
}

.btn-warning:hover {
    background: #e0a800;
    transform: translateY(-1px);
}

/* Режим практики */
.practice-mode {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Панель статистики */
.stats-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.stat-item {
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.stat-value {
    display: block;
    font-size: 24px;
    font-weight: bold;
    color: #333;
}

/* Область кода */
.code-container {
    position: relative;
    margin-bottom: 30px;
}

.code-display {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 20px;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    line-height: 1.6;
    min-height: 300px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    position: relative;
}

.typing-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    border: none;
    outline: none;
    background: transparent;
    color: transparent;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    line-height: 1.6;
    cursor: text;
    z-index: 10;
}

/* Подсветка символов */
.char {
    position: relative;
    display: inline;
}

.char.correct {
    background-color: #4caf50;
    color: white;
    border-radius: 2px;
}

.char.incorrect {
    background-color: #f44336;
    color: white;
    border-radius: 2px;
}

.char.current {
    background-color: #ffeb3b;
    color: #333;
    border-radius: 2px;
    animation: blink 1s infinite;
}

.char.pending {
    color: #666;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

/* Управление */
.controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Результаты */
.results {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin-top: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.results h3 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.results-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.result-item {
    text-align: center;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.result-label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.result-value {
    display: block;
    font-size: 24px;
    font-weight: bold;
    color: #333;
}

.result-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Кнопка закрыть */
.btn-danger {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, #c0392b 0%, #a93226 100%);
}

.btn-danger:active {
    transform: translateY(0);
}

/* История */
.history {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin-top: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.history h3 {
    margin-bottom: 20px;
    color: #333;
}

.history-list {
    max-height: 400px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid #eee;
    transition: background-color 0.3s ease;
}

.history-item:hover {
    background-color: #f8f9fa;
}

.history-item:last-child {
    border-bottom: none;
}

.history-info {
    flex: 1;
}

.history-date {
    font-size: 12px;
    color: #666;
    margin-bottom: 5px;
}

.history-stats {
    font-size: 14px;
    color: #333;
}

.history-wpm {
    font-weight: bold;
    color: #11998e;
}

/* Утилиты */
.hidden {
    display: none !important;
}

/* Адаптивность */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    header h1 {
        font-size: 2rem;
    }

    .stats-panel {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .code-display {
        font-size: 14px;
        min-height: 250px;
    }

    .controls {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 200px;
    }

    .results-stats {
        grid-template-columns: 1fr;
    }

    .result-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .stats-panel {
        grid-template-columns: 1fr;
    }

    .history-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}

/* Стили для переносов строк */
.char[data-index] {
    white-space: pre-wrap;
}

/* Анимация для подсказки об ошибке */
@keyframes fadeInOut {
    0% { opacity: 0; transform: translateY(-10px); }
    20% { opacity: 1; transform: translateY(0); }
    80% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(-10px); }
}

.error-hint {
    animation: fadeInOut 2s ease-in-out;
}