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

body { 
    font-family: 'Arial', sans-serif; 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
    min-height: 100vh; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    padding: 20px; 
}

/* Стили для экрана входа */
.login-container { 
    background: white; 
    border-radius: 20px; 
    padding: 40px; 
    box-shadow: 0 15px 35px rgba(0,0,0,0.3); 
    width: 100%; 
    max-width: 400px; 
    text-align: center; 
    display: block;
}

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

.game-subtitle { 
    color: #666; 
    margin-bottom: 40px; 
    font-size: 1.1em; 
    line-height: 1.5; 
}

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

.input-group label { 
    display: block; 
    color: #333; 
    margin-bottom: 8px; 
    font-weight: bold; 
    font-size: 0.9em; 
}

.input-group input { 
    width: 100%; 
    padding: 15px; 
    border: 2px solid #e1e5e9; 
    border-radius: 10px; 
    font-size: 1em; 
    transition: all 0.3s; 
}

.input-group input:focus { 
    outline: none; 
    border-color: #667eea; 
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1); 
}

.login-btn { 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
    color: white; 
    border: none; 
    padding: 15px 30px; 
    border-radius: 10px; 
    cursor: pointer; 
    font-size: 1.1em; 
    font-weight: bold; 
    width: 100%; 
    transition: transform 0.2s, box-shadow 0.2s; 
    margin-bottom: 20px; 
}

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

.register-link { 
    color: #667eea; 
    text-decoration: none; 
    font-weight: bold; 
    transition: color 0.3s; 
}

.register-link:hover { 
    color: #764ba2; 
    text-decoration: underline; 
}

.snake-icon { 
    font-size: 3em; 
    margin-bottom: 20px; 
    display: block; 
}

.form-divider { 
    margin: 25px 0; 
    color: #999; 
    font-size: 0.9em; 
}

/* Стили для игрового экрана */
.game-screen { 
    display: none; 
    width: 100%; 
    max-width: 1200px; 
}

.container { 
    background: white; 
    border-radius: 15px; 
    padding: 20px; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.3); 
}

.game-layout { 
    display: grid; 
    grid-template-columns: 1fr; 
    gap: 20px; 
    margin-bottom: 20px; 
}

@media (min-width: 1024px) { 
    .game-layout { 
        grid-template-columns: 1fr 400px; 
    } 
}

.game-container { 
    position: relative; 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
}

#gameCanvas { 
    border: 3px solid #333; 
    border-radius: 10px; 
    background: #000; 
    display: block; 
    max-width: 100%; 
    height: auto; 
}

.game-controls { 
    text-align: center; 
    margin: 10px 0; 
    width: 100%; 
}

.controls { 
    display: flex; 
    flex-wrap: wrap; 
    justify-content: center; 
    gap: 8px; 
}

.controls button { 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
    color: white; 
    border: none; 
    padding: 10px 15px; 
    border-radius: 8px; 
    cursor: pointer; 
    font-size: 0.9em; 
    transition: transform 0.2s; 
    min-width: 120px; 
}

.controls button:hover { 
    transform: translateY(-2px); 
}

.section { 
    background: #f8f9fa; 
    padding: 15px; 
    border-radius: 10px; 
    border: 2px solid #e9ecef; 
    margin-bottom: 15px; 
}

.section h2 { 
    color: #495057; 
    margin-bottom: 15px; 
    font-size: 1.2em; 
    border-bottom: 2px solid #dee2e6; 
    padding-bottom: 8px; 
}

.score-item { 
    background: white; 
    padding: 12px; 
    margin: 8px 0; 
    border-radius: 8px; 
    border-left: 4px solid #667eea; 
    box-shadow: 0 2px 5px rgba(0,0,0,0.1); 
    font-size: 0.9em; 
}

.score-item.my-score { 
    border-left-color: #ff6b6b; 
    background: #fff5f5; 
}

.score-item .score { 
    font-size: 1.1em; 
    font-weight: bold; 
    color: #333; 
}

.score-item .player { 
    color: #666; 
    font-size: 1em; 
    font-weight: bold; 
}

.score-item .level { 
    color: #666; 
    font-size: 0.8em; 
}

.score-item .date { 
    color: #888; 
    font-size: 0.7em; 
    text-align: right; 
}

.current-stats { 
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%); 
    color: white; 
    padding: 15px; 
    border-radius: 10px; 
    text-align: center; 
    margin-bottom: 42px;
}

.stats-grid { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); 
    gap: 10px; 
    margin: 10px 0; 
}

.stat { 
    text-align: center; 
}

.stat-value { 
    font-size: 1.5em; 
    font-weight: bold; 
}

.stat-label { 
    font-size: 0.8em; 
    opacity: 0.9; 
}

.player-info { 
    background: linear-gradient(135deg, #764ba2 0%, #764ba2 100%); 
    color: white; 
    padding: 15px; 
    border-radius: 10px; 
    margin-bottom: 15px; 
    text-align: center; 
}

.loading { 
    text-align: center; 
    color: #666; 
    font-style: italic; 
}

.new-record { 
    animation: pulse 1s infinite; 
    background: linear-gradient(135deg, #ffd93d 0%, #ff6b6b 100%) !important; 
}

@keyframes pulse { 
    0% { transform: scale(1); } 
    50% { transform: scale(1.05); } 
    100% { transform: scale(1); } 
}

.game-over { 
    position: absolute; 
    top: 25%; 
    left: 50%; 
    transform: translate(-50%, -50%); 
    background: rgba(0, 0, 0, 0.9); 
    color: white; 
    padding: 20px; 
    border-radius: 15px; 
    text-align: center; 
    display: none; 
    width: 90%; 
    max-width: 300px; 
}

.game-over h2 { 
    color: #ff6b6b; 
    margin-bottom: 10px; 
    font-size: 1.5em; 
}

.mobile-controls { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); 
    grid-template-rows: repeat(2, 1fr); 
    gap: 8px; 
    margin-top: 15px; 
    width: 100%; 
    max-width: 300px; 
}

@media (min-width: 769px) { 
    .mobile-controls { 
        display: none; 
    } 
}

.mobile-controls button { 
    background: rgba(102, 126, 234, 0.8); 
    color: white; 
    border: none; 
    padding: 15px; 
    font-size: 1.2em; 
    border-radius: 10px; 
    min-height: 60px; 
}

.control-up { 
    grid-column: 2; 
    grid-row: 1; 
}

.control-left { 
    grid-column: 1; 
    grid-row: 2; 
}

.control-right { 
    grid-column: 3; 
    grid-row: 2; 
}

.control-down { 
    grid-column: 2; 
    grid-row: 2; 
}

/* Исправленные стили для кнопок */
.refresh-btn { 
    background: #6c757d !important; 
    color: white !important;
    border: none !important;
    padding: 8px 16px !important;
    border-radius: 6px !important;
    cursor: pointer !important;
    font-size: 0.85em !important;
    margin-bottom: 10px;
    transition: all 0.2s !important;
    width: auto !important;
    min-width: auto !important;
    display: inline-block !important;
}

.refresh-btn:hover {
    background: #5a6268 !important;
    transform: none !important;
    box-shadow: none !important;
}

.logout-btn { 
    background: #dc3545 !important; 
    color: white !important;
    border: none !important;
    padding: 8px 16px !important;
    border-radius: 6px !important;
    cursor: pointer !important;
    font-size: 0.85em !important;
    margin-top: 10px;
    transition: all 0.2s !important;
    width: auto !important;
    min-width: auto !important;
    display: inline-block !important;
}

.logout-btn:hover {
    background: #c82333 !important;
    transform: none !important;
    box-shadow: none !important;
}

.skin-options { 
    display: grid; 
    grid-template-columns: repeat(2, 1fr); 
    gap: 10px; 
    margin-top: 10px; 
}

.skin-option { 
    padding: 10px; 
    border: 2px solid #ddd; 
    border-radius: 8px; 
    text-align: center; 
    cursor: pointer; 
    transition: all 0.3s; 
}

.skin-option.selected { 
    border-color: #667eea; 
    background: #f0f4ff; 
}

.skin-preview { 
    width: 30px; 
    height: 30px; 
    margin: 0 auto 5px; 
    border-radius: 4px; 
}

.modal { 
    display: none; 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    background: rgba(0,0,0,0.5); 
    z-index: 1000; 
}

.modal-content { 
    position: absolute; 
    top: 50%; 
    left: 50%; 
    transform: translate(-50%, -50%); 
    background: white; 
    padding: 20px; 
    border-radius: 10px; 
    width: 90%; 
    max-width: 400px; 
}

/* Стили для заголовков секций */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.section-header h2 {
    margin: 0;
    border: none;
    padding: 0;
}