/* --- ROOT VARIABLES & THEMES --- */
:root {
    --bg: #ffffff;
    --text: #1d2129;
    --text-secondary: #606770;
    --header-bg: rgba(255, 255, 255, 0.7);
    --sidebar-bg: rgba(255, 255, 255, 0.7);
    --border: #e0e0e0;
    --accent-color: #7b2cbf;
    /* Обновлен градиент на чисто фиолетовый */
    --sidebar-title-gradient: linear-gradient(45deg, #8e44ad, #7b2cbf);
    --code-bg: #f5f7fa;
    --link-hover-bg: #f0f2f5;
    --search-bg: #f0f2f5;
    --search-border: #e0e0e0;
    --highlight-bg: #e0cffc;
    --highlight-text: #1d2129;
    --shadow: rgba(0, 0, 0, 0.08);

    --lua-keyword: #d73a49;
    --lua-function: #6f42c1;
    --lua-string: #032f62;
    --lua-number: #005cc5;
    --lua-comment: #6a737d;
    --lua-variable: #e36209;
}

html[data-theme='dark'] {
    --bg: #121212;
    --text: #e0e0e0;
    --text-secondary: #8b949e;
    --header-bg: rgba(18, 18, 18, 0.7);
    --sidebar-bg: rgba(18, 18, 18, 0.7);
    --border: #333333;
    --accent-color: #c778dd;
    /* Обновлен градиент на чисто фиолетовый для темной темы */
    --sidebar-title-gradient: linear-gradient(45deg, #9b59b6, #c778dd);
    --code-bg: #1e1e1e;
    --link-hover-bg: #2a2a2a;
    --search-bg: #121212;
    --search-border: #333333;
    --highlight-bg: #382d47;
    --highlight-text: #f0f6fc;
    --shadow: rgba(0, 0, 0, 0.4);

    --lua-keyword: #c678dd;
    --lua-function: #61afef;
    --lua-string: #98c379;
    --lua-number: #d19a66;
    --lua-comment: #5c6370;
    --lua-variable: #e06c75;
}

/* --- ANIMATIONS & GENERAL SETUP --- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

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

@keyframes pan-bg {
    from {
        background-position: 0% 0%;
    }

    to {
        background-position: 100% 100%;
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.8;
    position: relative;
    transition: background-color 0.3s;
}

body.menu-open {
    overflow: hidden;
}

:root {
    --blueprint-url: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Cpath d='M50 0L100 25M50 0L0 25M0 25 0 75L50 100L50 50ZM100 25V75L50 100ZM50 50L100 75M0 75L50 50' fill='none' stroke='%23e0e0e0' stroke-width='0.25'/%3E%3C/svg%3E");
}

html[data-theme='dark'] {
    --blueprint-url: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Cpath d='M50 0L100 25M50 0L0 25M0 25 0 75L50 100L50 50ZM100 25V75L50 100ZM50 50L100 75M0 75L50 50' fill='none' stroke='%238b949e' stroke-width='0.25'/%3E%3C/svg%3E");
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 50vh;
    z-index: -2;
    pointer-events: none;
    
    background: radial-gradient(ellipse at 50% 0%, rgba(199, 120, 221, 0.2), transparent 70%);
    filter: blur(40px);
    opacity: 0;
    transition: opacity 0.5s;
}

html[data-theme='dark'] body::before {
    opacity: 1;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    pointer-events: none;
    
    background-image: var(--blueprint-url);
    
    mask-image: radial-gradient(ellipse 80% 90% at 50% -15%, black 15%, transparent 60%);
    -webkit-mask-image: radial-gradient(ellipse 80% 90% at 50% -15%, black 15%, transparent 60%);
    
    animation: pan-bg 120s linear infinite alternate;
    transition: opacity 0.3s;
}

html[data-theme='dark'] body::after {
    opacity: 0.4;
}

html[data-theme='light'] body::after {
    opacity: 0.2;
}

/* --- SCROLLBAR --- */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

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

::-webkit-scrollbar-thumb {
    background-color: var(--text-secondary);
    border-radius: 10px;
    border: 3px solid var(--code-bg);
}

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

/* --- LAYOUT --- */
.layout-grid {
    display: grid;
    grid-template-columns: 260px 1fr;
    grid-template-areas: "header header" "toc content";
    transition: transform 0.3s ease-in-out;
}

header {
    grid-area: header;
}

.sidebar-toc {
    grid-area: toc;
}

.content-wrapper {
    grid-area: content;
    padding: 0 4rem;
    max-width: 900px;
    margin: 0 auto;
}

/* --- HEADER --- */
header {
    position: fixed;
    top: 0;
    width: 100%;
    height: 60px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0 1.5rem;
    border-bottom: 1px solid var(--border);
    background-color: var(--header-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 100;
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    white-space: nowrap;
}

.search-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.search-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--search-bg);
    border: 1px solid var(--search-border);
    border-radius: 8px;
    padding: 0.4rem 0.75rem;
    transition: all 0.2s;
}

.search-container:focus-within {
    box-shadow: 0 0 0 2px var(--accent-color);
}

.search-container .icon {
    stroke: var(--text-secondary);
    width: 20px;
    height: 20px;
}

#search-input {
    width: 100%;
    background: none;
    border: none;
    color: var(--text);
    font-size: 14px;
    outline: none;
}

#search-results {
    display: none;
    position: absolute;
    top: 110%;
    left: 0;
    right: 0;
    background: var(--sidebar-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    max-height: 400px;
    overflow-y: auto;
    z-index: 101;
    box-shadow: 0 8px 24px var(--shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

#search-results a {
    display: block;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text);
    font-size: 14px;
    border-bottom: 1px solid var(--border);
    transition: background-color 0.2s;
}

#search-results a:last-child {
    border-bottom: none;
}

#search-results a:hover {
    background-color: var(--link-hover-bg);
}

#search-results .path {
    font-size: 12px;
    color: var(--text-secondary);
    display: block;
}

#search-results .snippet {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
    margin-top: 4px;
}

#search-results .snippet mark {
    font-weight: bold;
    background: none;
    color: var(--accent-color);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
}

.header-nav a,
.theme-toggle,
.hamburger-btn {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.2s, transform 0.2s;
    display: flex;
    align-items: center;
    gap: 4px;
}

.header-nav a:hover,
.theme-toggle:hover,
.hamburger-btn:hover {
    color: var(--text);
    transform: scale(1.1);
}

.header-nav .icon {
    width: 24px;
    height: 24px;
    stroke: currentColor;
}

.header-nav a .icon {
    stroke: none;
    fill: currentColor;
}


.theme-toggle,
.hamburger-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.theme-toggle .icon {
    stroke: currentColor;
    fill: currentColor;
}

.hamburger-btn {
    display: none;
    z-index: 102;
}

/* --- SIDEBAR --- */
.sidebar {
    height: 100vh;
    position: sticky;
    top: 0;
    flex-shrink: 0;
    overflow-y: auto;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: transform 0.3s ease-in-out;
}

.sidebar-toc {
    padding-top: 80px;
    font-size: 14px;
}

#toc-nav-container {
    list-style: none;
}

#toc-nav-container a {
    display: block;
    padding: 0.35rem 1.5rem;
    text-decoration: none;
    color: var(--text-secondary);
    border-left: 3px solid transparent;
    transition: all 0.2s ease-in-out;
    position: relative;
}

#toc-nav-container a:hover {
    color: var(--text);
    background-color: var(--link-hover-bg);
    transform: translateX(4px);
}

#toc-nav-container a.active {
    color: var(--accent-color);
    border-left-color: var(--accent-color);
    font-weight: 600;
}

#toc-nav-container a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent-color);
    box-shadow: 0 0 8px var(--accent-color);
    /* Добавлено скругление */
    border-radius: 3px;
}

#toc-nav-container a.toc-category {
    /* Используем новую переменную для градиента */
    background: var(--sidebar-title-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 700;
    margin-top: 1.25rem;
    padding-left: 1.25rem;
    font-size: 15px;
}

/* --- MAIN CONTENT --- */
.content-wrapper {
    padding-top: 80px;
}

section {
    margin-bottom: 3rem;
}

section h2,
section h3 {
    padding-top: 80px;
    margin-top: -80px;
}

h2,
h3 {
    color: var(--text);
    transition: color 0.5s ease;
}

/* Убран hover эффект с градиентом */
h2:hover,
h3:hover {
   color: var(--text); /* Остается обычный цвет текста */
}

h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
}

.topic-block {
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.4s ease-in-out, box-shadow 0.4s ease;
    opacity: 0;
    transform: translateY(30px);
    padding: 1.5rem;
    border-radius: 12px;
    background-color: transparent;
    border: 1px solid transparent;
}

.topic-block.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.topic-block:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px var(--shadow);
    border-color: var(--border);
}

h3 {
    font-size: 1.6rem;
    font-weight: 600;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

h3 .icon {
    stroke: var(--accent-color);
    fill: var(--accent-color);
    width: 28px;
    height: 28px;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), filter 0.4s ease;
}

h3:hover .icon {
    transform: rotate(-15deg) scale(1.2);
    filter: drop-shadow(0 0 8px var(--accent-color));
}

p {
    margin-bottom: 1rem;
    color: var(--text);
}

p a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

p a::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 2px;
    bottom: -3px;
    left: 0;
    background: linear-gradient(45deg, #7b2cbf, #c778dd);
    transform-origin: bottom right;
    transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

p a:hover {
    color: var(--accent-color);
}

p a:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

/* --- CODE & OTHER ELEMENTS --- */
.code-block {
    position: relative;
    background-color: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin: 1.5rem 0;
    font-size: 14px;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}
.code-block:hover {
    box-shadow: 0 4px 15px var(--shadow);
}

.code-block pre {
    padding: 1.25rem;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'JetBrains Mono', monospace;
}

.copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 3px 8px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
    opacity: 0;
    transform: translateY(-5px);
}

.code-block:hover .copy-btn {
    opacity: 0.8;
    transform: translateY(0);
}

.copy-btn:hover {
    opacity: 1;
    color: var(--text);
    background-color: var(--accent-color);
}

code.inline {
    background-color: var(--link-hover-bg);
    color: var(--text-secondary);
    padding: 0.25em 0.5em;
    border-radius: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9em;
    border: 1px solid var(--border);
}

footer {
    margin-top: 4rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.lua-keyword {
    color: var(--lua-keyword) !important;
    font-weight: bold;
}

.lua-function {
    color: var(--lua-function) !important;
}

.lua-string {
    color: var(--lua-string) !important;
}

.lua-number {
    color: var(--lua-number) !important;
}

.lua-comment {
    color: var(--lua-comment) !important;
    font-style: italic;
}

.lua-variable {
    color: var(--lua-variable) !important;
}

/* --- MOBILE OVERLAY --- */
#mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 101;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

#mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 1024px) {
    .layout-grid {
        grid-template-columns: 240px 1fr;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.4rem;
    }
}

@media (max-width: 768px) {
    .layout-grid {
        grid-template-columns: 1fr;
        grid-template-areas: "header" "content";
    }

    .content-wrapper {
        padding: 0 1.5rem;
    }

    .logo,
    .header-nav a {
        display: none;
    }
     .header-nav a[title="Telegram Channel"] {
        display: flex;
    }

    .hamburger-btn {
        display: flex;
    }

    .search-wrapper {
        max-width: none;
    }

    .sidebar-toc {
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        height: 100%;
        transform: translateX(-100%);
        z-index: 102;
        border-right: 1px solid var(--border);
        box-shadow: 4px 0 15px var(--shadow);
    }

    .sidebar-toc.active {
        transform: translateX(0);
    }

    h2 {
        font-size: 1.8rem;
    }

    h3 {
        font-size: 1.3rem;
    }
}