/* ==========================================================================
   CodingBox — раздел «Документация». Токены темы совпадают с лендингом
   (index.php); здесь — раскладка топбар / сайдбар / материал. Тёмная тема
   по умолчанию, светлая — переключателем (общий ключ cb-theme).
   ========================================================================== */

:root,
[data-bs-theme="light"] {
    --cb-bg:        #ffffff;
    --cb-bg-alt:    #f6f8fa;
    --cb-surface:   #ffffff;
    --cb-surface-2: #f6f8fa;
    --cb-ink:       #1f2328;
    --cb-body:      #424a53;
    --cb-muted:     #656d76;
    --cb-line:      #d1d9e0;
    --cb-line-soft: #e6eaef;
    --cb-accent:    #1f883d;
    --cb-accent-hi: #1a7f37;
    --cb-accent-bg: rgba(31, 136, 61, .09);
    --cb-shadow:    0 1px 2px rgba(31, 35, 40, .05), 0 8px 24px rgba(31, 35, 40, .06);
    --cb-mono: ui-monospace, SFMono-Regular, 'JetBrains Mono', Menlo, Consolas, monospace;
    --cb-radius: 14px;
    --cb-scroll-thumb:       rgba(31, 35, 40, .26);
    --cb-scroll-thumb-hover: rgba(31, 35, 40, .44);
}

[data-bs-theme="dark"] {
    --cb-bg:        #0d1117;
    --cb-bg-alt:    #11161d;
    --cb-surface:   #161b22;
    --cb-surface-2: #1c222b;
    --cb-ink:       #e6edf3;
    --cb-body:      #b6c0cc;
    --cb-muted:     #8b949e;
    --cb-line:      #2a323d;
    --cb-line-soft: #1f262f;
    --cb-accent:    #2ea043;
    --cb-accent-hi: #3fb950;
    --cb-accent-bg: rgba(46, 160, 67, .14);
    --cb-shadow:    0 1px 2px rgba(0, 0, 0, .3);
    --cb-scroll-thumb:       rgba(230, 237, 243, .20);
    --cb-scroll-thumb-hover: rgba(230, 237, 243, .34);
}

* { box-sizing: border-box; }

/* Скроллбары под обе темы: тонкие, ненавязчивые, цвет ведём от токенов.
   Firefox — scrollbar-width/scrollbar-color; WebKit/Blink — псевдоэлементы. */
* { scrollbar-width: thin; scrollbar-color: var(--cb-scroll-thumb) transparent; }
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--cb-scroll-thumb);
    border-radius: 8px;
    border: 3px solid transparent;
    background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--cb-scroll-thumb-hover);
    border: 3px solid transparent;
    background-clip: padding-box;
}
::-webkit-scrollbar-corner { background: transparent; }

html { scroll-padding-top: 78px; }

body {
    font-family: 'Play', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.68;
    color: var(--cb-body);
    background-color: var(--cb-bg);
    -webkit-font-smoothing: antialiased;
    margin: 0;
}

a { color: var(--cb-accent); text-decoration: none; }
a:hover { color: var(--cb-accent-hi); }

/* ---------- Топбар ---------- */
.doc-topbar {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: color-mix(in srgb, var(--cb-bg) 90%, transparent);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--cb-line-soft);
}
.doc-topbar-inner {
    display: flex;
    align-items: center;
    gap: 14px;
    max-width: 1360px;
    margin: 0 auto;
    padding: 10px 22px;
}

.cb-brand { display: inline-flex; align-items: center; gap: .6rem; line-height: 1; color: var(--cb-ink); flex: 0 0 auto; }
.cb-brand:hover { color: var(--cb-ink); }
.cb-brand .bi-box { font-size: 1.7rem; color: var(--cb-ink); }
.cb-brand-text { font-size: 1.5rem; font-weight: 700; }

.doc-home-link {
    color: var(--cb-accent); font-weight: 700; font-size: 1.3rem;
    padding-left: 14px; margin-left: 2px; border-left: 1px solid var(--cb-line);
    flex: 0 0 auto;
}
.doc-home-link:hover { color: var(--cb-accent-hi); }

.cb-flag {
    width: 1.25em; height: .94em; object-fit: cover; border-radius: 2px;
    vertical-align: -.12em; margin-right: .45em; flex: 0 0 auto;
    box-shadow: 0 0 0 1px var(--cb-line);
}

/* Кнопки топбара */
.doc-catsel-btn, .doc-icon-btn {
    display: inline-flex; align-items: center; gap: .5rem;
    font-family: inherit; font-size: .95rem; color: var(--cb-body);
    background: var(--cb-surface); border: 1px solid var(--cb-line);
    border-radius: 10px; padding: .45rem .7rem; cursor: pointer;
    line-height: 1;
}
.doc-catsel-btn:hover, .doc-icon-btn:hover { color: var(--cb-ink); background: var(--cb-surface-2); }
.doc-catsel-btn { max-width: 260px; }
.doc-catsel-btn > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.doc-caret { font-size: .7rem; opacity: .7; }
.doc-icon-btn { height: 38px; }
.theme-toggle { width: 38px; justify-content: center; padding: 0; }
[data-bs-theme="light"] .theme-toggle .bi-sun-fill,
[data-bs-theme="dark"]  .theme-toggle .bi-moon-stars-fill { display: none; }

.dropdown-menu {
    --bs-dropdown-bg: var(--cb-surface);
    --bs-dropdown-border-color: var(--cb-line);
    --bs-dropdown-link-color: var(--cb-body);
    --bs-dropdown-link-hover-bg: var(--cb-surface-2);
    --bs-dropdown-link-hover-color: var(--cb-ink);
    --bs-dropdown-link-active-bg: var(--cb-accent);
    --bs-dropdown-link-active-color: #fff;
    font-size: .95rem;
    box-shadow: var(--cb-shadow);
}

/* Поиск */
.doc-search {
    position: relative; flex: 1 1 auto; max-width: 460px;
    display: flex; align-items: center;
    background: var(--cb-surface); border: 1px solid var(--cb-line);
    border-radius: 10px; padding: 0 .7rem;
}
.doc-search .bi-search { color: var(--cb-muted); font-size: .95rem; }
.doc-search input {
    flex: 1 1 auto; border: 0; outline: 0; background: transparent;
    color: var(--cb-ink); font-family: inherit; font-size: .95rem;
    padding: .5rem .55rem; min-width: 0;
}
.doc-results {
    position: absolute; top: calc(100% + 6px); left: 0; right: 0;
    background: var(--cb-surface); border: 1px solid var(--cb-line);
    border-radius: 12px; box-shadow: var(--cb-shadow);
    max-height: 60vh; overflow-y: auto; padding: 6px; z-index: 1040;
}
.doc-results a {
    display: block; padding: 8px 10px; border-radius: 8px; color: var(--cb-ink);
}
.doc-results a:hover, .doc-results a.hl { background: var(--cb-surface-2); }
.doc-results .r-crumb { display: block; font-size: .76rem; color: var(--cb-muted); }
.doc-results .r-empty { padding: 10px; color: var(--cb-muted); font-size: .9rem; }
.doc-results mark { background: var(--cb-accent-bg); color: inherit; padding: 0 1px; border-radius: 3px; }

/* ---------- Каркас страницы ---------- */
.doc-shell {
    display: flex; align-items: flex-start; gap: 40px;
    max-width: 1360px; margin: 0 auto; padding: 30px 22px 80px;
}
.doc-shell-wide { max-width: 1040px; }

/* Сайдбар */
.doc-sidebar {
    flex: 0 0 272px; width: 272px;
    position: sticky; top: 78px;
    max-height: calc(100vh - 98px); overflow-y: auto;
    padding-right: 6px;
}
.doc-sidebar-head {
    display: flex; align-items: center; gap: .5rem;
    font-weight: 700; color: var(--cb-ink); font-size: 1.05rem;
    padding: 2px 0 12px; margin-bottom: 6px;
    border-bottom: 1px solid var(--cb-line-soft);
}
.doc-tree { font-size: .95rem; }
.doc-sec { border: 0; margin: 2px 0; }
.doc-sec > summary {
    list-style: none; cursor: pointer; user-select: none;
    display: flex; align-items: center; justify-content: space-between;
    padding: 7px 8px; border-radius: 8px; font-weight: 700; color: var(--cb-ink);
}
.doc-sec > summary::-webkit-details-marker { display: none; }
.doc-sec > summary:hover { background: var(--cb-surface-2); }
.doc-sec > summary::after {
    content: "\F282"; font-family: "bootstrap-icons"; font-weight: 400;
    font-size: .75rem; color: var(--cb-muted); transition: transform .15s ease;
}
.doc-sec[open] > summary::after { transform: rotate(180deg); }
.doc-sec ul { list-style: none; margin: 2px 0 8px; padding: 0 0 0 8px; }
.doc-sec li { margin: 0; }
.doc-sec li a {
    display: block; padding: 6px 10px; border-radius: 7px;
    color: var(--cb-body); border-left: 2px solid transparent;
}
.doc-sec li a:hover { color: var(--cb-ink); background: var(--cb-surface-2); }
.doc-sec li a.active {
    color: var(--cb-accent-hi); font-weight: 700;
    border-left-color: var(--cb-accent); background: var(--cb-accent-bg);
}

/* Основной блок */
.doc-main { flex: 1 1 auto; min-width: 0; max-width: 840px; }
.doc-menu-btn {
    display: inline-flex; align-items: center; gap: .45rem; margin-bottom: 16px;
    font-family: inherit; font-size: .95rem; color: var(--cb-body);
    background: var(--cb-surface); border: 1px solid var(--cb-line);
    border-radius: 10px; padding: .5rem .8rem; cursor: pointer;
}

.doc-crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: .85rem; color: var(--cb-muted); margin-bottom: 18px; }
.doc-crumbs a { color: var(--cb-muted); }
.doc-crumbs a:hover { color: var(--cb-accent); }
.doc-crumbs .bi { font-size: .7rem; opacity: .6; }
.doc-crumbs span[aria-current] { color: var(--cb-body); }

.doc-lead { font-size: 1.1rem; color: var(--cb-muted); margin: 0 0 26px; }

/* Заголовки/типографика материала */
.doc-main h1 { font-size: clamp(1.9rem, 3.6vw, 2.5rem); line-height: 1.15; font-weight: 700; letter-spacing: -.01em; color: var(--cb-ink); margin: 0 0 16px; }
.doc-article h2 { font-size: 1.5rem; font-weight: 700; color: var(--cb-ink); margin: 38px 0 14px; padding-top: 8px; }
.doc-article h3 { font-size: 1.18rem; font-weight: 700; color: var(--cb-ink); margin: 26px 0 10px; }
.doc-article p { margin: 0 0 15px; }
.doc-article ul, .doc-article ol { margin: 0 0 15px; padding-left: 1.5rem; }
.doc-article li { margin: 4px 0; }
.doc-article a { text-decoration: underline; text-underline-offset: 2px; }
.doc-article img { max-width: 100%; height: auto; border: 1px solid var(--cb-line-soft); border-radius: 10px; }
.doc-article code { font-family: var(--cb-mono); font-size: .88em; background: var(--cb-surface-2); border: 1px solid var(--cb-line-soft); border-radius: 5px; padding: .1em .35em; }
.doc-code { background: var(--cb-surface); border: 1px solid var(--cb-line); border-radius: 12px; padding: 14px 16px; overflow-x: auto; margin: 0 0 18px; }
.doc-code code { background: none; border: 0; padding: 0; font-size: .86rem; color: var(--cb-ink); }
.doc-article blockquote { margin: 0 0 18px; padding: 2px 16px; border-left: 3px solid var(--cb-accent); background: var(--cb-accent-bg); border-radius: 0 8px 8px 0; color: var(--cb-body); }
.doc-article blockquote p:last-child { margin-bottom: 0; }
.doc-article hr { border: 0; border-top: 1px solid var(--cb-line-soft); margin: 28px 0; }

.doc-table-wrap { overflow-x: auto; margin: 0 0 18px; }
.doc-table { border-collapse: collapse; width: 100%; font-size: .93rem; }
.doc-table th, .doc-table td { border: 1px solid var(--cb-line); padding: 8px 12px; text-align: left; }
.doc-table th { background: var(--cb-surface-2); color: var(--cb-ink); font-weight: 700; }

/* Хаб — карточки категорий (не более 2 в ряд) */
.doc-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 6px; }
.doc-card {
    display: flex; flex-direction: column; gap: 6px;
    background: var(--cb-surface); border: 1px solid var(--cb-line);
    border-radius: var(--cb-radius); padding: 22px; color: var(--cb-body);
    box-shadow: var(--cb-shadow); transition: border-color .15s ease, transform .15s ease;
}
.doc-card:hover { border-color: var(--cb-accent); transform: translateY(-2px); color: var(--cb-body); }
.doc-card > .bi { font-size: 1.8rem; color: var(--cb-accent); }
.doc-card-title { font-size: 1.2rem; font-weight: 700; color: var(--cb-ink); }
.doc-card-desc { font-size: .92rem; color: var(--cb-muted); }

/* Обзор категории — разделы плиткой (не более 2 в ряд) */
.doc-cat-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 6px; }
.doc-cat-sec {
    background: var(--cb-surface); border: 1px solid var(--cb-line);
    border-radius: var(--cb-radius); padding: 20px 22px; box-shadow: var(--cb-shadow);
}
.doc-cat-sec h2 { font-size: 1.2rem; font-weight: 700; color: var(--cb-ink); margin: 0 0 12px; }
.doc-cat-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.doc-cat-list a { display: inline-flex; align-items: center; gap: .5rem; color: var(--cb-body); }
.doc-cat-list a:hover { color: var(--cb-accent); }
.doc-cat-list .bi { color: var(--cb-muted); }

.doc-btn {
    display: inline-flex; align-items: center; gap: .45rem;
    background: var(--cb-accent); color: #fff; font-weight: 700;
    padding: .55rem .95rem; border-radius: 10px;
}
.doc-btn:hover { background: var(--cb-accent-hi); color: #fff; }

/* ---------- Адаптив ---------- */
@media (max-width: 991.98px) {
    .doc-home-link { display: none; }
    .doc-shell { gap: 0; }
    .doc-sidebar {
        position: fixed; top: 0; left: 0; bottom: 0; width: 300px; max-height: none;
        background: var(--cb-bg); border-right: 1px solid var(--cb-line);
        padding: 20px; z-index: 1050; transform: translateX(-100%);
        transition: transform .2s ease; box-shadow: var(--cb-shadow);
    }
    .doc-sidebar.open { transform: translateX(0); }
    .doc-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 1045; }
}
@media (min-width: 992px) {
    .doc-menu-btn { display: none !important; }
}
@media (max-width: 639.98px) {
    .doc-cards, .doc-cat-grid { grid-template-columns: 1fr; }
}
@media (max-width: 575.98px) {
    .doc-catsel-btn > span { display: none; }
    .doc-search { max-width: none; }
    .cb-brand-text { display: none; }
}