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

:root {
    --transition-speed: 0.35s;
    --transition-fn: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #161616;
    --bg-card-hover: #1c1c1c;
    --bg-code: #0d0d0d;
    --border: #222222;
    --border-hover: #333333;
    --text: #f0f0f0;
    --text-secondary: #999999;
    --text-muted: #666666;
    --accent: #ffffff;
    --accent-secondary: #cccccc;
    --tag-bg: #1a1a1a;
    --tag-border: #2a2a2a;
    --sidebar-bg: #0e0e0e;
    --nav-bg: rgba(10, 10, 10, 0.85);
    --code-header-bg: #131313;
    --error-code-bg: #1a1a1a;
    --scrollbar-thumb: #333;
    --scrollbar-track: #111;
    --icon-sun-display: none;
    --icon-moon-display: block;
}

[data-theme="light"] {
    --bg: #fafafa;
    --bg-secondary: #f0f0f0;
    --bg-card: #ffffff;
    --bg-card-hover: #f5f5f5;
    --bg-code: #f4f4f4;
    --border: #e0e0e0;
    --border-hover: #cccccc;
    --text: #111111;
    --text-secondary: #555555;
    --text-muted: #888888;
    --accent: #000000;
    --accent-secondary: #333333;
    --tag-bg: #f0f0f0;
    --tag-border: #ddd;
    --sidebar-bg: #f7f7f7;
    --nav-bg: rgba(250, 250, 250, 0.85);
    --code-header-bg: #eaeaea;
    --error-code-bg: #eeeeee;
    --scrollbar-thumb: #ccc;
    --scrollbar-track: #f0f0f0;
    --icon-sun-display: block;
    --icon-moon-display: none;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background var(--transition-speed) var(--transition-fn),
        color var(--transition-speed) var(--transition-fn);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

a {
    color: inherit;
    text-decoration: none;
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition-speed) var(--transition-fn),
        border-color var(--transition-speed) var(--transition-fn);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 0.5px;
    color: var(--text);
    transition: opacity 0.2s;
}

.nav-logo:hover {
    opacity: 0.7;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: color 0.2s, background 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link:hover {
    color: var(--text);
    background: var(--bg-card);
}

.nav-link-tg svg {
    flex-shrink: 0;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-card);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, border-color 0.2s, transform 0.2s;
    margin-left: 4px;
}

.theme-toggle:hover {
    border-color: var(--border-hover);
    transform: scale(1.05);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.icon-sun {
    display: var(--icon-sun-display);
}

.icon-moon {
    display: var(--icon-moon-display);
}

.hero {
    padding: 160px 24px 100px;
    text-align: center;
}

.hero-inner {
    max-width: 720px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 100px;
    margin-bottom: 32px;
    animation: fadeUp 0.6s var(--transition-fn) both;
}

.hero-title {
    font-size: clamp(40px, 8vw, 72px);
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1.05;
    margin-bottom: 24px;
    color: var(--text);
    animation: fadeUp 0.6s var(--transition-fn) 0.1s both;
}

.hero-desc {
    font-size: 17px;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 40px;
    animation: fadeUp 0.6s var(--transition-fn) 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeUp 0.6s var(--transition-fn) 0.3s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s var(--transition-fn);
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--text);
    color: var(--bg);
}

.btn-primary:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

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

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-card);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.features {
    padding: 80px 24px 100px;
}

.features-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px;
    transition: background 0.25s, border-color 0.25s, transform 0.25s;
    opacity: 0;
    transform: translateY(20px);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s var(--transition-fn),
        transform 0.5s var(--transition-fn),
        background 0.25s,
        border-color 0.25s;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-3px);
}

.feature-card.visible:hover {
    transform: translateY(-3px);
}

.feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    margin-bottom: 20px;
    color: var(--text);
    transition: background var(--transition-speed) var(--transition-fn),
        border-color var(--transition-speed) var(--transition-fn);
}

.feature-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.cta {
    padding: 0 24px 100px;
}

.cta-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.cta-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 40px;
    transition: background 0.25s, border-color 0.25s, transform 0.25s;
}

.cta-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.cta-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}

.cta-desc {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.footer {
    border-top: 1px solid var(--border);
    padding: 24px;
    text-align: center;
    transition: border-color var(--transition-speed) var(--transition-fn);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    font-size: 13px;
    color: var(--text-muted);
}

.docs-hero {
    padding: 120px 24px 60px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    transition: border-color var(--transition-speed) var(--transition-fn);
}

.docs-hero-inner {
    max-width: 700px;
    margin: 0 auto;
}

.docs-hero-title {
    font-size: clamp(28px, 5vw, 40px);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
    animation: fadeUp 0.5s var(--transition-fn) both;
}

.docs-hero-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    animation: fadeUp 0.5s var(--transition-fn) 0.1s both;
}

.docs-layout {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 0;
    min-height: calc(100vh - 300px);
}

.docs-sidebar {
    padding: 32px 24px;
    border-right: 1px solid var(--border);
    position: sticky;
    top: 60px;
    height: calc(100vh - 60px);
    overflow-y: auto;
    transition: border-color var(--transition-speed) var(--transition-fn);
}

.sidebar-group {
    margin-bottom: 28px;
}

.sidebar-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 10px;
    padding-left: 12px;
}

.sidebar-link {
    display: block;
    padding: 7px 12px;
    font-size: 13px;
    color: var(--text-secondary);
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
    margin-bottom: 2px;
}

.sidebar-link:hover {
    color: var(--text);
    background: var(--bg-card);
}

.sidebar-link.active {
    color: var(--text);
    background: var(--bg-card);
    font-weight: 500;
}

.docs-main {
    padding: 40px 48px 80px;
    max-width: 100%;
    overflow-x: hidden;
}

.docs-section {
    margin-bottom: 56px;
    padding-bottom: 56px;
    border-bottom: 1px solid var(--border);
    animation: fadeUp 0.5s var(--transition-fn) both;
    transition: border-color var(--transition-speed) var(--transition-fn);
}

.docs-section:last-child {
    border-bottom: none;
}

.docs-section-title {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 20px;
}

.docs-subtitle {
    font-size: 17px;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
}

.docs-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.inline-code {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 13px;
    background: var(--tag-bg);
    border: 1px solid var(--tag-border);
    padding: 2px 7px;
    border-radius: 5px;
    color: var(--text);
    transition: background var(--transition-speed) var(--transition-fn),
        border-color var(--transition-speed) var(--transition-fn);
}

.code-block {
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 20px;
    transition: border-color var(--transition-speed) var(--transition-fn);
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    background: var(--code-header-bg);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition-speed) var(--transition-fn),
        border-color var(--transition-speed) var(--transition-fn);
}

.code-lang {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.code-copy {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    transition: color 0.15s, background 0.15s;
}

.code-copy:hover {
    color: var(--text);
    background: var(--bg-card);
}

.code-copy.copied {
    color: var(--text);
}

.code-block pre {
    padding: 16px;
    background: var(--bg-code);
    overflow-x: auto;
    transition: background var(--transition-speed) var(--transition-fn);
}

.code-block code {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text);
    white-space: pre;
}

.tags-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.tag {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 12px;
    padding: 5px 12px;
    background: var(--tag-bg);
    border: 1px solid var(--tag-border);
    border-radius: 6px;
    color: var(--text-secondary);
    transition: background var(--transition-speed) var(--transition-fn),
        border-color var(--transition-speed) var(--transition-fn);
}

.types-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 16px;
}

.types-grid.compact {
    grid-template-columns: repeat(3, 1fr);
}

.type-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    transition: background var(--transition-speed) var(--transition-fn),
        border-color var(--transition-speed) var(--transition-fn);
}

.type-item span {
    color: var(--text-secondary);
    font-size: 13px;
}

.params-table {
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 20px;
    transition: border-color var(--transition-speed) var(--transition-fn);
}

.params-header {
    display: grid;
    grid-template-columns: 140px 1fr;
    padding: 10px 16px;
    background: var(--code-header-bg);
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    transition: background var(--transition-speed) var(--transition-fn),
        border-color var(--transition-speed) var(--transition-fn);
}

.params-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    align-items: center;
    transition: border-color var(--transition-speed) var(--transition-fn);
}

.params-row:last-child {
    border-bottom: none;
}

.params-row span {
    color: var(--text-secondary);
}

.errors-table {
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color var(--transition-speed) var(--transition-fn);
}

.error-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    transition: border-color var(--transition-speed) var(--transition-fn);
}

.error-row:last-child {
    border-bottom: none;
}

.error-code {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 13px;
    font-weight: 600;
    background: var(--error-code-bg);
    padding: 3px 10px;
    border-radius: 5px;
    min-width: 40px;
    text-align: center;
    flex-shrink: 0;
    transition: background var(--transition-speed) var(--transition-fn);
}

.error-row>span:last-child {
    color: var(--text-secondary);
}

.docs-version-badge {
    display: inline-block;
    padding: 6px 18px;
    font-size: 13px;
    font-weight: 700;
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    letter-spacing: 1px;
    color: var(--text);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 16px;
    animation: fadeUp 0.5s var(--transition-fn) both;
    transition: background var(--transition-speed) var(--transition-fn),
        border-color var(--transition-speed) var(--transition-fn);
}

.sidebar-link-page {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-link-page svg {
    flex-shrink: 0;
    opacity: 0.5;
}

.docs-page-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    transition: border-color var(--transition-speed) var(--transition-fn);
}

.page-nav-btn {
    display: block;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.page-nav-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.page-nav-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.page-nav-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 6px;
}

.page-nav-next {
    text-align: right;
}

.page-nav-next .page-nav-title {
    justify-content: flex-end;
}

.page-nav-prev .page-nav-title {
    justify-content: flex-start;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 900px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta-inner {
        grid-template-columns: 1fr;
    }

    .docs-layout {
        grid-template-columns: 1fr;
    }

    .docs-sidebar {
        position: static;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 20px 24px;
        display: flex;
        gap: 24px;
        overflow-x: auto;
    }

    .sidebar-group {
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .docs-main {
        padding: 32px 24px 60px;
    }

    .types-grid.compact {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 130px 20px 70px;
    }

    .hero-title {
        letter-spacing: -1px;
    }

    .nav-inner {
        padding: 0 16px;
    }

    .nav-link:not(.nav-link-tg) {
        display: none;
    }

    .types-grid,
    .types-grid.compact {
        grid-template-columns: 1fr;
    }

    .params-header,
    .params-row {
        grid-template-columns: 100px 1fr;
    }
}