/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Dark theme (default) */
    --bg-primary: #0a0a0f;
    --bg-secondary: #141420;
    --bg-card: rgba(20, 20, 32, 0.8);
    --bg-card-hover: rgba(30, 30, 45, 0.9);
    --text-primary: #ffffff;
    --text-secondary: #b0b0c0;
    --text-muted: #707080;
    --accent: #ff6bb5;
    --accent-hover: #ff8cc8;
    --accent-secondary: #9d6bff;
    --border: rgba(255, 255, 255, 0.1);
    --shadow: rgba(0, 0, 0, 0.5);
    --shadow-glow: rgba(255, 107, 181, 0.3);
}

[data-theme="light"] {
    /* Light theme */
    --bg-primary: #f5f5f7;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-card-hover: rgba(245, 245, 247, 0.95);
    --text-primary: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-muted: #86868b;
    --accent: #ff6bb5;
    --accent-hover: #ff8cc8;
    --accent-secondary: #9d6bff;
    --border: rgba(0, 0, 0, 0.1);
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-glow: rgba(255, 107, 181, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
    -webkit-overflow-scrolling: touch;
    text-rendering: optimizeLegibility;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Animated Background */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

[data-theme="light"] .animated-bg {
    background: linear-gradient(135deg, #f5f5f7 0%, #ffffff 100%);
}

.stars, .stars2, .stars3 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
}

.stars {
    background-image: 
        radial-gradient(2px 2px at 20% 30%, white, transparent),
        radial-gradient(2px 2px at 60% 70%, white, transparent),
        radial-gradient(1px 1px at 50% 50%, white, transparent),
        radial-gradient(1px 1px at 80% 10%, white, transparent),
        radial-gradient(2px 2px at 90% 40%, white, transparent),
        radial-gradient(1px 1px at 33% 60%, white, transparent),
        radial-gradient(1px 1px at 55% 80%, white, transparent);
    background-repeat: repeat;
    background-size: 200% 200%;
    animation: sparkle 20s linear infinite;
    opacity: 0.5;
}

[data-theme="light"] .stars,
[data-theme="light"] .stars2 {
    background-image: 
        radial-gradient(2px 2px at 20% 30%, rgba(0, 0, 0, 0.3), transparent),
        radial-gradient(2px 2px at 60% 70%, rgba(0, 0, 0, 0.3), transparent),
        radial-gradient(1px 1px at 50% 50%, rgba(0, 0, 0, 0.2), transparent),
        radial-gradient(1px 1px at 80% 10%, rgba(0, 0, 0, 0.2), transparent),
        radial-gradient(2px 2px at 90% 40%, rgba(0, 0, 0, 0.3), transparent),
        radial-gradient(1px 1px at 33% 60%, rgba(0, 0, 0, 0.2), transparent),
        radial-gradient(1px 1px at 55% 80%, rgba(0, 0, 0, 0.2), transparent);
    opacity: 0.3;
}

[data-theme="light"] .stars3 {
    opacity: 0.15;
}

.stars2 {
    background-image: 
        radial-gradient(1px 1px at 25% 25%, white, transparent),
        radial-gradient(1px 1px at 75% 75%, white, transparent),
        radial-gradient(1px 1px at 40% 60%, white, transparent);
    background-repeat: repeat;
    background-size: 300% 300%;
    animation: sparkle 30s linear infinite reverse;
    opacity: 0.3;
}

.stars3 {
    background-image: 
        radial-gradient(1px 1px at 15% 45%, var(--accent), transparent),
        radial-gradient(1px 1px at 85% 55%, var(--accent-secondary), transparent);
    background-repeat: repeat;
    background-size: 400% 400%;
    animation: sparkle 40s linear infinite;
    opacity: 0.2;
}

@keyframes sparkle {
    from { transform: translateY(0); }
    to { transform: translateY(-200px); }
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    margin-bottom: 40px;
}

[data-theme="light"] .header {
    background: rgba(245, 245, 247, 0.9);
}

@media (max-width: 768px) {
    .header {
        position: relative;
        padding: 10px 0;
        margin-bottom: 15px;
    }
}

.header-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
}

/* Theme Toggle Button */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 20px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
}

.theme-toggle:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px var(--shadow-glow);
}

.theme-toggle:active {
    transform: translateY(0);
}

.theme-toggle i {
    transition: transform 0.3s ease;
}

.theme-toggle:hover i {
    transform: rotate(15deg);
}

/* Main Content */
.main {
    position: relative;
    z-index: 1;
    padding-bottom: 60px;
}

.content-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 40px var(--shadow);
}

[data-theme="light"] .content-card {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.content-card h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.content-card h2 {
    font-size: 24px;
    font-weight: 600;
    margin: 30px 0 15px 0;
    color: var(--text-primary);
}

.content-card p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.content-card ul {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.content-card li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.6;
}

.content-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
    font-size: 18px;
}

.code-block {
    position: relative;
    background: #1e1e2e;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    overflow-x: auto;
    margin: 20px 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

[data-theme="light"] .code-block {
    background: #f8f8f8;
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.code-block code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #e0e0e0;
    white-space: pre;
    display: block;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

[data-theme="light"] .code-block code {
    color: #2d2d2d;
}

/* Подсветка синтаксиса для HTML/JS */
.code-block code {
    /* HTML теги */
    background: transparent;
}

.code-block code::selection {
    background: rgba(255, 107, 181, 0.3);
}

@media (max-width: 768px) {
    .code-block code {
        font-size: 12px;
        line-height: 1.5;
    }
}

.code-block-wrapper {
    position: relative;
}

.copy-code-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255, 107, 181, 0.1);
    border: 1px solid var(--accent);
    border-radius: 8px;
    color: var(--accent);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    z-index: 10;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    white-space: nowrap;
}

.copy-code-btn:hover {
    background: var(--accent);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 107, 181, 0.3);
}

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

.copy-code-btn.copied {
    background: #4caf50;
    border-color: #4caf50;
    color: white;
}

.copy-code-btn i {
    font-size: 14px;
}

@media (max-width: 768px) {
    .copy-code-btn {
        top: 8px;
        right: 8px;
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .code-block {
        padding-top: 50px;
    }
}

/* Add Random Widget Button */
.add-widget-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    margin-top: 30px;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 181, 0.3);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.add-widget-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 107, 181, 0.4);
}

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

.add-widget-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Footer */
.footer {
    position: relative;
    z-index: 1;
    background: linear-gradient(180deg, rgba(10, 10, 15, 0.98) 0%, rgba(10, 10, 15, 0.95) 100%);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-top: 1px solid var(--border);
    padding: 50px 0 20px;
    margin-top: 80px;
}

[data-theme="light"] .footer {
    background: linear-gradient(180deg, rgba(245, 245, 247, 0.98) 0%, rgba(255, 255, 255, 0.95) 100%);
    border-top-color: rgba(0, 0, 0, 0.08);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr 1fr;
    gap: 50px;
    padding-bottom: 35px;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-brand-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
    max-width: 280px;
}

.footer-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 20px;
}

.footer-copyright {
    text-align: center;
}

.footer-copyright p {
    color: var(--text-muted);
    font-size: 13px;
    margin: 0;
    line-height: 1.5;
}

/* Responsive */
@media (max-width: 1024px) {
    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header {
        padding: 10px 0;
        margin-bottom: 15px;
    }
    
    .header-content {
        gap: 10px;
    }
    
    .content-card {
        padding: 25px;
        border-radius: 16px;
    }
    
    .content-card h1 {
        font-size: 28px;
    }
    
    .content-card h2 {
        font-size: 20px;
    }
    
    .footer {
        padding: 35px 0 15px;
        margin-top: 50px;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 35px;
        padding-bottom: 30px;
        margin-bottom: 25px;
    }
    
    .footer-brand {
        text-align: center;
        align-items: center;
    }
    
    .footer-brand-description {
        max-width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .content-card {
        padding: 20px;
    }
    
    .content-card h1 {
        font-size: 24px;
    }
    
    .content-card h2 {
        font-size: 18px;
    }
    
    .footer {
        padding: 30px 0 15px;
        margin-top: 40px;
    }
    
    .footer-main {
        gap: 30px;
        padding-bottom: 25px;
        margin-bottom: 20px;
    }
    
    .footer-brand-title {
        font-size: 18px;
    }
    
    .footer-brand-description {
        font-size: 13px;
    }
    
    .footer-copyright p {
        font-size: 12px;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

@media (max-width: 768px) {
    ::-webkit-scrollbar {
        width: 6px;
    }
}