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

:root {
    --primary-color: #FF006E;
    --secondary-color: #FB5607;
    --accent-color: #FFBE0B;
    --purple-color: #8338EC;
    --blue-color: #3A86FF;
    --dark-bg: #0a0a0a;
    --darker-bg: #050505;
    --card-bg: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --border-color: #333333;
    --success-color: #00ff88;
    --error-color: #ff4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    padding-bottom: 80px;
}

.app-header {
    background: linear-gradient(135deg, var(--primary-color), var(--purple-color));
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(255, 0, 110, 0.3);
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.header-controls {
    display: flex;
    gap: 0.5rem;
}

.control-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.app-main {
    padding: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.section.active {
    display: block;
}

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

.game-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.grid-info {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 15px;
    display: flex;
    justify-content: space-around;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

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

.info-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.info-value {
    display: block;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--accent-color);
    text-shadow: 0 0 10px rgba(255, 190, 11, 0.5);
}

.game-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 2px;
    background: var(--border-color);
    padding: 2px;
    border-radius: 15px;
    margin: 0 auto;
    max-width: 400px;
    aspect-ratio: 1;
}

.grid-cell {
    aspect-ratio: 1;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    position: relative;
    border-radius: 4px;
}

.grid-cell:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
}

.grid-cell.center {
    background: var(--text-primary);
    color: var(--dark-bg);
    font-weight: bold;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.7);
}

.grid-cell.region-0 {
    background: var(--primary-color);
    box-shadow: 0 0 10px rgba(255, 0, 110, 0.5);
}

.grid-cell.region-1 {
    background: var(--secondary-color);
    box-shadow: 0 0 10px rgba(251, 86, 7, 0.5);
}

.grid-cell.region-2 {
    background: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 190, 11, 0.5);
}

.grid-cell.region-3 {
    background: var(--purple-color);
    box-shadow: 0 0 10px rgba(131, 56, 236, 0.5);
}

.grid-cell.region-4 {
    background: var(--blue-color);
    box-shadow: 0 0 10px rgba(58, 134, 255, 0.5);
}

.controls-panel {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.action-btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    min-width: 160px;
    justify-content: center;
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 20px rgba(255, 0, 110, 0.3);
}

.action-btn.secondary {
    background: linear-gradient(135deg, var(--purple-color), var(--blue-color));
    color: white;
    box-shadow: 0 4px 20px rgba(131, 56, 236, 0.3);
}

.action-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 0, 110, 0.4);
}

.patterns-container {
    max-width: 800px;
    margin: 0 auto;
}

.patterns-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.patterns-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.pattern-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.pattern-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 0, 110, 0.2);
    border-color: var(--primary-color);
}

.pattern-preview {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 1px;
    aspect-ratio: 1;
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
}

.pattern-preview .preview-cell {
    aspect-ratio: 1;
    background: var(--card-bg);
}

.pattern-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.pattern-name {
    font-weight: 600;
    color: var(--accent-color);
}

.pattern-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.pattern-actions {
    display: flex;
    gap: 0.5rem;
}

.pattern-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.3s ease;
}

.pattern-btn.load {
    background: var(--blue-color);
    color: white;
}

.pattern-btn.delete {
    background: var(--error-color);
    color: white;
}

.pattern-btn:hover {
    transform: scale(1.05);
}

.empty-message {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.empty-message i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.tutorial-container {
    max-width: 800px;
    margin: 0 auto;
}

.tutorial-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    background: linear-gradient(135deg, var(--purple-color), var(--blue-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tutorial-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.tutorial-step {
    display: flex;
    gap: 1.5rem;
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.step-number {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
    box-shadow: 0 0 15px rgba(255, 0, 110, 0.3);
}

.step-content h3 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.concept-explanation {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.1), rgba(131, 56, 236, 0.1));
    padding: 2rem;
    border-radius: 15px;
    margin-top: 2rem;
    border: 1px solid rgba(255, 0, 110, 0.2);
}

.concept-explanation h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.concept-explanation p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.1rem;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(255, 0, 110, 0.1);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 1.5rem;
    text-align: left;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: rgba(255, 0, 110, 0.1);
}

.faq-icon {
    font-size: 1.2rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-answer:not([hidden]) {
    max-height: 200px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--darker-bg), var(--card-bg));
    display: flex;
    justify-content: space-around;
    padding: 0.5rem;
    border-top: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    z-index: 1000;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 15px;
    transition: all 0.3s ease;
    min-width: 60px;
}

.nav-item:hover {
    color: var(--primary-color);
    background: rgba(255, 0, 110, 0.1);
    transform: translateY(-2px);
}

.nav-item.active {
    color: var(--primary-color);
    background: rgba(255, 0, 110, 0.2);
    box-shadow: 0 0 15px rgba(255, 0, 110, 0.3);
}

.nav-item i {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.nav-item span {
    font-size: 0.7rem;
    font-weight: 500;
}

footer {
    text-align: center;
    padding: 2rem 1rem 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    background: var(--darker-bg);
    margin-top: 3rem;
}

.notification {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--card-bg);
    color: white;
    padding: 1rem 2rem;
    border-radius: 25px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    z-index: 1001;
    animation: slideInDown 0.3s ease;
    border: 1px solid var(--border-color);
}

.notification.success {
    border-color: var(--success-color);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.notification.error {
    border-color: var(--error-color);
    box-shadow: 0 0 20px rgba(255, 68, 68, 0.3);
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translate(-50%, -100px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

@media (max-width: 768px) {
    .app-header {
        padding: 0.75rem;
    }
    
    .app-header h1 {
        font-size: 1.3rem;
    }
    
    .control-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
    
    .control-btn span {
        display: none;
    }
    
    .game-grid {
        max-width: 350px;
    }
    
    .action-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
        min-width: 140px;
    }
    
    .tutorial-step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        align-self: center;
    }
    
    .patterns-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .app-main {
        padding: 0.5rem;
    }
    
    .game-grid {
        max-width: 300px;
    }
    
    .controls-panel {
        flex-direction: column;
        align-items: center;
    }
    
    .action-btn {
        width: 100%;
        max-width: 250px;
    }
}