/* Modern CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Telegram Color Scheme */
    --tg-primary: #0088cc;
    --tg-primary-dark: #0078b8;
    --tg-bg-light: #f5f5f5;
    --tg-bg: #ffffff;
    --tg-text: #222222;
    --tg-text-secondary: #666666;
    --tg-border: #e0e0e0;
    --tg-card-bg: #fafafa;
    --tg-snake: #26a65b;
    --tg-food: #e74c3c;
    
    /* Game Elements */
    --game-bg: #1c1c1c;
    --game-border: #333333;
    
    /* Transition */
    --transition: all 0.3s ease;
    
    /* Typography */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, 
                Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --font-mono: 'Courier New', monospace;
    
    /* Spacing */
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --tg-bg-light: #1c1c1c;
    --tg-bg: #121212;
    --tg-text: #f0f0f0;
    --tg-text-secondary: #aaaaaa;
    --tg-border: #333333;
    --tg-card-bg: #1e1e1e;
    --game-bg: #0a0a0a;
    --game-border: #222222;
}

/* Base Styles */
body {
    font-family: var(--font-main);
    background-color: var(--tg-bg-light);
    color: var(--tg-text);
    line-height: 1.6;
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body.rainbow-mode {
    background: linear-gradient(124deg, #ff2400, #e81d1d, #e8b71d, #e3e81d, #1de840, #1ddde8, #2b1de8, #dd00f3, #dd00f3);
    background-size: 1800% 1800%;
    animation: rainbow 18s ease infinite;
}

@keyframes rainbow {
    0% { background-position: 0% 82% }
    50% { background-position: 100% 19% }
    100% { background-position: 0% 82% }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    flex: 1;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(1.8rem, 4vw, 2.2rem);
}

h2 {
    font-size: clamp(1.4rem, 3.5vw, 1.8rem);
}

h3 {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
}

p {
    color: var(--tg-text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: clamp(0.9rem, 1.8vw, 1rem);
}

a {
    color: var(--tg-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    text-decoration: underline;
}

/* Header Styles */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--tg-border);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    margin-bottom: var(--spacing-md);
}

.score-board {
    display: flex;
    gap: 25px;
    background: var(--tg-card-bg);
    border-radius: 12px;
    padding: 10px 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.score-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.score-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--tg-text-secondary);
    margin-bottom: 4px;
}

.score-value {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    font-weight: 700;
    color: var(--tg-primary);
    font-family: var(--font-mono);
}

/* Game Area */
.game-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.game-container {
    position: relative;
    width: 100%;
    max-width: 600px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    aspect-ratio: 3/2;
    background: var(--game-bg);
    border: 1px solid var(--game-border);
}

#game-canvas {
    display: block;
    background: var(--game-bg);
    width: 100%;
    height: 100%;
}

/* Game Overlay */
.game-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    display: none; /* Исправление: изначально скрыт */
    justify-content: center;
    align-items: center;
    z-index: 10;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(2px);
}

.overlay-content {
    text-align: center;
    color: white;
    padding: 20px;
    max-width: 80%;
}

.overlay-content h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: 15px;
    color: white;
}

.overlay-content p {
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    opacity: 0.9;
    color: white;
}

.controls {
    display: flex;
    justify-content: center;
    gap: clamp(15px, 3vw, 30px);
    margin-top: 30px;
    flex-wrap: wrap;
}

.control-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.control-key {
    width: clamp(30px, 6vw, 40px);
    height: clamp(30px, 6vw, 40px);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: clamp(1rem, 2vw, 1.2rem);
    border: 1px solid rgba(255, 255, 255, 0.2);
    user-select: none;
}

.game-over-icon {
    width: clamp(60px, 10vw, 80px);
    height: clamp(60px, 10vw, 80px);
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(231, 76, 60, 0.5));
}

.mobile-start {
    display: none;
    margin: 15px 0;
}

/* Buttons */
.btn-primary {
    background: var(--tg-primary);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 12px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 20px;
    box-shadow: 0 4px 15px rgba(0, 136, 204, 0.3);
    touch-action: manipulation;
}

.btn-primary:hover {
    background: var(--tg-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 136, 204, 0.4);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 10px;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--tg-card-bg);
    color: var(--tg-text);
    border: 1px solid var(--tg-border);
    border-radius: 10px;
    padding: 12px 20px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin: 10px 0;
    width: 100%;
}

.btn-social:hover {
    background: rgba(0, 136, 204, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.share-buttons {
    margin-top: 20px;
    width: 100%;
}

/* Mobile Controls */
.mobile-controls {
    display: none;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
    width: 100%;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    z-index: 5;
}

.mobile-actions {
    display: flex;
    justify-content: center;
    width: 100%;
    margin-bottom: 15px;
}

.directional-pad {
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dpad-up, .dpad-down, .dpad-left, .dpad-right {
    position: absolute;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    user-select: none;
    transition: var(--transition);
}

.dpad-up {
    top: 10px;
}

.dpad-down {
    bottom: 10px;
}

.dpad-left {
    left: 10px;
}

.dpad-right {
    right: 10px;
}

.dpad-center {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.dpad-up:active, .dpad-down:active, .dpad-left:active, .dpad-right:active {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0.95);
}

/* Site Content */
.site-content {
    margin-bottom: var(--spacing-xl);
}

.content-card {
    background: var(--tg-card-bg);
    border-radius: 16px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.content-card:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}

.content-card p {
    margin-bottom: var(--spacing-md);
}

.content-card a {
    font-weight: 600;
}

/* Fun Fact */
.fun-fact {
    background: rgba(38, 166, 91, 0.1);
    border-radius: 12px;
    padding: var(--spacing-md);
    border-left: 4px solid var(--tg-snake);
    margin-top: var(--spacing-md);
}

/* Achievements Section */
.achievements-section {
    position: relative;
    overflow: hidden;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.achievement-item {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: var(--transition);
    border: 1px solid var(--tg-border);
}

.achievement-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.achievement-item.unlocked {
    background: rgba(38, 166, 91, 0.1);
    border-color: var(--tg-snake);
}

.achievement-icon {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.achievement-progress {
    font-weight: 600;
    text-align: center;
    margin-top: var(--spacing-sm);
    color: var(--tg-primary);
}

/* FAQ Styles */
.faq-item {
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--tg-border);
    padding-bottom: var(--spacing-md);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: var(--spacing-sm) 0;
}

.faq-question h3 {
    margin: 0;
    font-size: clamp(1rem, 2vw, 1.1rem);
    color: var(--tg-text);
}

.faq-toggle {
    font-size: 1.5rem;
    width: 24px;
    height: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--tg-bg);
    border-radius: 50%;
    transition: var(--transition);
}

.faq-answer {
    padding: 0 var(--spacing-sm);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer p {
    margin-top: var(--spacing-sm);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-md);
}

/* Secret Section */
.secret-section {
    border-left: 4px solid var(--tg-primary);
    background: rgba(0, 136, 204, 0.05);
    position: relative;
    overflow: hidden;
}

.secret-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, #0088cc, #00c853);
}

.secret-intro {
    font-style: italic;
    color: var(--tg-text-secondary);
    margin-bottom: 10px;
}

.secret-message {
    background: rgba(0, 136, 204, 0.15);
    border-radius: 12px;
    padding: 15px;
    font-weight: 600;
    color: var(--tg-primary);
    text-align: center;
    font-size: clamp(1rem, 2vw, 1.1rem);
    line-height: 1.4;
    border: 1px dashed rgba(0, 136, 204, 0.3);
}

.secret-hint {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px dashed var(--tg-border);
    font-size: 0.9rem;
    color: var(--tg-text-secondary);
    font-style: italic;
}

/* Easter Egg Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    backdrop-filter: blur(2px);
}

.modal-content {
    background: var(--tg-card-bg);
    border-radius: 16px;
    padding: var(--spacing-lg);
    max-width: 500px;
    width: 90%;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    animation: modalAppear 0.3s ease;
}

@keyframes modalAppear {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--tg-text-secondary);
    transition: var(--transition);
    width: 24px;
    height: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
}

.modal-close:hover {
    background: var(--tg-bg);
    color: var(--tg-text);
}

.modal-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    display: block;
}

/* Footer */
.footer {
    margin-top: auto;
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--tg-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--tg-text-secondary);
    font-size: clamp(0.8rem, 1.5vw, 0.9rem);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--tg-primary);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .score-board {
        width: 100%;
        max-width: 400px;
    }
    
    .footer {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .controls {
        flex-direction: column;
        gap: 15px;
    }
    
    .overlay-content h2 {
        font-size: clamp(1.2rem, 4vw, 2rem);
    }
    
    .faq-question h3 {
        font-size: clamp(0.9rem, 2vw, 1rem);
    }
    
    .secret-message {
        font-size: clamp(0.9rem, 2vw, 1rem);
    }
    
    /* Mobile-specific styles */
    .mobile-controls {
        display: flex;
    }
    
    .mobile-start {
        display: block;
    }
    
    .controls, .score-board {
        display: none;
    }
    
    .game-container {
        margin-bottom: 80px; /* Даем место для мобильных кнопок */
    }
}

@media (max-width: 480px) {
    .score-value {
        font-size: clamp(1rem, 2.5vw, 1.2rem);
    }
    
    .overlay-content h2 {
        font-size: clamp(1rem, 4vw, 1.7rem);
    }
    
    .control-key {
        width: clamp(25px, 5vw, 35px);
        height: clamp(25px, 5vw, 35px);
        font-size: clamp(0.8rem, 1.8vw, 1rem);
    }
    
    .content-card {
        padding: 12px;
    }
    
    .hidden-content {
        padding: 10px;
    }
    
    .key {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }
    
    .directional-pad {
        width: 120px;
        height: 120px;
    }
    
    .dpad-up, .dpad-down, .dpad-left, .dpad-right {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}

/* Print Styles */
@media print {
    .game-area, .header, .footer, .theme-toggle {
        display: none;
    }
    
    .container {
        max-width: 100%;
    }
}