/* ═══════════════════════════════════════════════
   Bobcorn Wiki — Editorial Reference Style
   Inherits brand DNA from landing page, adapted
   for long-form reading & knowledge base UX.
   ═══════════════════════════════════════════════ */

/* ─── Brand Tokens (from landing page) ─── */
@font-face {
    font-family: 'GT Canon VF Variable L Black';
    src: url('../../fonts/GT-Canon-VF-Variable-L-Black.woff2') format('woff2');
    font-weight: 900;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'GT Canon VF Variable L Black';
    src: url('../../fonts/GT-Canon-VF-Variable-L-Black-Italic.woff2') format('woff2');
    font-weight: 900;
    font-style: italic;
    font-display: swap;
}

:root {
    /* Brand palette */
    --bg: #FAFAF5;
    --text: #1A1917;
    --text-secondary: #82817A;
    --text-tertiary: #A9A89F;
    --accent: #F06830;
    --accent-hover: #DD5B25;
    --accent-soft: rgba(240, 104, 48, 0.08);
    --divider: #E0DED2;
    --pill-bg: rgba(160, 158, 148, 0.10);
    --pill-hover: rgba(160, 158, 148, 0.20);
    --surface: #F3F2EB;
    --surface-raised: #FFFFFF;

    /* Typography */
    --serif: 'GT Canon VF Variable L Black', Georgia, serif;
    --sans: 'Outfit', system-ui, -apple-system, sans-serif;
    --mono: 'Space Mono', 'SF Mono', 'Cascadia Code', monospace;

    /* Document layout */
    --sidebar-w: 240px;
    --topbar-h: 56px;
    --content-max: 720px;
    --gutter: clamp(24px, 4vw, 48px);

    /* Semantic colors */
    --green: #2D8E5C;
    --green-soft: rgba(45, 142, 92, 0.08);
    --red: #C4442D;
    --red-soft: rgba(196, 68, 45, 0.08);
    --blue: #3B6FC0;
    --blue-soft: rgba(59, 111, 192, 0.08);
    --yellow: #B5880F;
    --yellow-soft: rgba(181, 136, 15, 0.08);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--topbar-h) + 24px);
}

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a { color: inherit; }
img { display: block; max-width: 100%; }

/* ─── Top Bar ─── */
.wiki-topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: var(--topbar-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    background: rgba(250, 250, 245, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--divider);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.topbar-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-family: var(--serif);
    font-size: 18px;
    color: var(--text);
    letter-spacing: -0.01em;
}

.topbar-back img {
    width: 24px;
    height: 24px;
}

.topbar-sep {
    color: var(--divider);
    font-size: 18px;
    font-weight: 300;
    user-select: none;
}

.topbar-title {
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
}

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

/* Language Switcher */
.lang-switch {
    position: relative;
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: none;
    background: none;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    transition: color 0.2s, background 0.2s;
}

.lang-btn:hover { color: var(--text); background: var(--pill-bg); }

.lang-btn svg {
    width: 15px;
    height: 15px;
    opacity: 0.55;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--surface-raised);
    border: 1px solid var(--divider);
    border-radius: 12px;
    padding: 8px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
    transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 8px 32px rgba(26, 25, 23, 0.08),
                0 1px 3px rgba(26, 25, 23, 0.06);
    z-index: 200;
    min-width: 280px;
}

.lang-dropdown.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.lang-dropdown a {
    font-family: var(--sans);
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 7px 10px;
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
    white-space: nowrap;
}

.lang-dropdown a:hover {
    color: var(--text);
    background: var(--pill-bg);
}

.lang-dropdown a.active {
    color: var(--accent);
}

/* Mobile menu toggle */
.sidebar-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 6px;
    color: var(--text);
    transition: background 0.15s;
}

.sidebar-toggle:hover { background: var(--pill-bg); }

.sidebar-toggle svg {
    width: 20px;
    height: 20px;
}

/* ─── Layout Shell ─── */
.wiki-layout {
    display: flex;
    margin-top: var(--topbar-h);
    min-height: calc(100vh - var(--topbar-h));
}

/* ─── Sidebar ─── */
.wiki-sidebar {
    position: sticky;
    top: var(--topbar-h);
    width: var(--sidebar-w);
    height: calc(100vh - var(--topbar-h));
    flex-shrink: 0;
    overflow-y: auto;
    padding: 24px 0 24px 24px;
    border-right: 1px solid var(--divider);
}

.wiki-sidebar::-webkit-scrollbar { width: 0; }

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

.sidebar-label {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    padding: 0 12px;
    margin-bottom: 6px;
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav a {
    display: block;
    padding: 6px 12px;
    font-size: 14px;
    font-weight: 400;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
    letter-spacing: -0.005em;
}

.sidebar-nav a:hover {
    color: var(--text);
    background: var(--pill-bg);
}

.sidebar-nav a.active {
    color: var(--accent);
    background: var(--accent-soft);
    font-weight: 500;
}

.sidebar-nav .nav-indent {
    padding-left: 24px;
    font-size: 13px;
}

/* ─── Main Content ─── */
.wiki-main {
    flex: 1;
    min-width: 0;
    padding: var(--gutter);
    padding-bottom: 120px;
}

.wiki-article {
    max-width: var(--content-max);
    margin: 0 auto;
}

/* ─── Typography: Headings ─── */
.wiki-article h1 {
    font-family: var(--serif);
    font-size: clamp(32px, 5vw, 44px);
    font-weight: 900;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin-bottom: 12px;
}

.wiki-article h1 em {
    font-style: italic;
}

.wiki-article h2 {
    font-family: var(--serif);
    font-size: clamp(22px, 3vw, 28px);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-top: 56px;
    margin-bottom: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--divider);
}

.wiki-article h2:first-of-type {
    border-top: none;
    padding-top: 0;
}

.wiki-article h3 {
    font-family: var(--sans);
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-top: 32px;
    margin-bottom: 10px;
    color: var(--text);
}

/* ─── Typography: Body ─── */
.wiki-article p {
    font-size: 15.5px;
    line-height: 1.75;
    color: var(--text);
    margin-bottom: 16px;
    letter-spacing: -0.005em;
}

.wiki-article .lead {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

.wiki-article strong {
    font-weight: 600;
    color: var(--text);
}

.wiki-article a:not(.btn) {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: rgba(240, 104, 48, 0.3);
    text-underline-offset: 2px;
    transition: text-decoration-color 0.15s;
}

.wiki-article a:not(.btn):hover {
    text-decoration-color: var(--accent);
}

/* ─── Inline code ─── */
.wiki-article code {
    font-family: var(--mono);
    font-size: 0.88em;
    padding: 2px 7px;
    background: var(--pill-bg);
    border-radius: 4px;
    color: var(--text);
    letter-spacing: -0.02em;
}

/* ─── Code blocks ─── */
.wiki-article pre {
    margin: 20px 0 24px;
    padding: 20px 24px;
    background: #2B2A27;
    border-radius: 10px;
    overflow-x: auto;
    line-height: 1.65;
}

.wiki-article pre code {
    font-family: var(--mono);
    font-size: 13px;
    padding: 0;
    background: none;
    border-radius: 0;
    color: #E8E6DF;
    letter-spacing: 0;
}

.code-label {
    display: block;
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
    margin-bottom: 8px;
}

/* Syntax colors */
.code-kw { color: #E8945A; }
.code-str { color: #A8C97B; }
.code-cmt { color: #6B6960; font-style: italic; }
.code-prop { color: #7EB8D9; }
.code-val { color: #D4A0E0; }
.code-tag { color: #E88B7A; }
.code-attr { color: #C9B87C; }

/* ─── Format Fingerprint Card ─── */
.fingerprint {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    margin: 24px 0 40px;
    border: 1px solid var(--divider);
    border-radius: 12px;
    overflow: hidden;
    background: var(--surface-raised);
}

.fingerprint-header {
    grid-column: 1 / -1;
    padding: 24px 28px 20px;
    border-bottom: 1px solid var(--divider);
    display: flex;
    align-items: center;
    gap: 16px;
}

.fingerprint-ext {
    font-family: var(--mono);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.04em;
    color: var(--accent);
}

.fingerprint-name {
    font-size: 15px;
    color: var(--text-secondary);
    letter-spacing: -0.005em;
}

.fingerprint-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 12px 28px;
    border-bottom: 1px solid var(--divider);
}

.fingerprint-row:nth-child(odd) {
    border-right: 1px solid var(--divider);
}

.fingerprint-row:last-child,
.fingerprint-row:nth-last-child(2):nth-child(odd) {
    border-bottom: none;
}

.fingerprint-key {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
    white-space: nowrap;
    min-width: 80px;
}

.fingerprint-val {
    font-size: 14px;
    color: var(--text);
    letter-spacing: -0.005em;
}

/* ─── Pros & Cons ─── */
.pros-cons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 20px 0 28px;
}

.pros-list, .cons-list {
    padding: 20px 24px;
    border-radius: 10px;
    list-style: none;
}

.pros-list {
    background: var(--green-soft);
}

.cons-list {
    background: var(--red-soft);
}

.pros-cons-label {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 10px;
}

.pros-list .pros-cons-label { color: var(--green); }
.cons-list .pros-cons-label { color: var(--red); }

.pros-list li, .cons-list li {
    font-size: 14px;
    line-height: 1.65;
    padding: 3px 0;
    padding-left: 20px;
    position: relative;
    color: var(--text);
}

.pros-list li::before {
    content: '+';
    position: absolute;
    left: 0;
    font-family: var(--mono);
    font-weight: 700;
    color: var(--green);
}

.cons-list li::before {
    content: '\2212';
    position: absolute;
    left: 0;
    font-family: var(--mono);
    font-weight: 700;
    color: var(--red);
}

/* ─── Comparison Table ─── */
.wiki-table-wrap {
    margin: 20px 0 28px;
    overflow-x: auto;
    border: 1px solid var(--divider);
    border-radius: 10px;
}

.wiki-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.wiki-table th {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
    text-align: left;
    padding: 14px 16px;
    background: var(--surface);
    border-bottom: 1px solid var(--divider);
    white-space: nowrap;
}

.wiki-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--divider);
    color: var(--text);
    letter-spacing: -0.005em;
    vertical-align: top;
}

.wiki-table tr:last-child td { border-bottom: none; }

.wiki-table .fmt {
    font-family: var(--mono);
    font-weight: 700;
    font-size: 13px;
    color: var(--accent);
    letter-spacing: -0.02em;
}

/* ─── Callout / Tip ─── */
.callout {
    margin: 24px 0;
    padding: 16px 20px;
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.65;
}

.callout-tip {
    background: var(--blue-soft);
    border-left: 3px solid var(--blue);
}

.callout-warn {
    background: var(--yellow-soft);
    border-left: 3px solid var(--yellow);
}

.callout-bobcorn {
    background: var(--accent-soft);
    border-left: 3px solid var(--accent);
}

.callout-label {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.callout-tip .callout-label { color: var(--blue); }
.callout-warn .callout-label { color: var(--yellow); }
.callout-bobcorn .callout-label { color: var(--accent); }

/* ─── Tags / Pills ─── */
.tag-row {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin: 8px 0 16px;
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--pill-bg);
    border-radius: 6px;
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}

.tag-accent {
    background: var(--accent-soft);
    color: var(--accent);
}

/* ─── Support Bar (browser compat visual) ─── */
.support-bar {
    display: flex;
    align-items: center;
    gap: 2px;
    margin: 4px 0;
}

.support-seg {
    height: 6px;
    border-radius: 3px;
    flex: 1;
}

.support-yes { background: var(--green); }
.support-partial { background: var(--yellow); }
.support-no { background: var(--red); opacity: 0.5; }

/* ─── Page Navigation (prev/next) ─── */
.page-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--divider);
}

.page-nav-link {
    display: block;
    padding: 16px 20px;
    border: 1px solid var(--divider);
    border-radius: 10px;
    text-decoration: none;
    transition: border-color 0.2s, background 0.2s;
}

.page-nav-link:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.page-nav-link:last-child { text-align: right; }

.page-nav-dir {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.page-nav-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    letter-spacing: -0.01em;
}

/* ─── Overview Cards (for index page) ─── */
.format-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin: 24px 0 32px;
}

.format-card {
    display: block;
    padding: 20px;
    background: var(--surface-raised);
    border: 1px solid var(--divider);
    border-radius: 10px;
    text-decoration: none;
    transition: border-color 0.2s, transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.format-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.format-card-ext {
    font-family: var(--mono);
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.04em;
    margin-bottom: 6px;
}

.format-card-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 4px;
    letter-spacing: -0.005em;
}

.format-card-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ─── Footer ─── */
.wiki-footer {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 24px 0;
    border-top: 1px solid var(--divider);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-tertiary);
}

.wiki-footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.15s;
}

.wiki-footer a:hover { color: var(--text); }

/* ─── Reveal Animation ─── */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ─── Lists ─── */
.wiki-article ul, .wiki-article ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.wiki-article li {
    font-size: 15px;
    line-height: 1.75;
    margin-bottom: 4px;
    color: var(--text);
}

.wiki-article li::marker {
    color: var(--text-tertiary);
}

/* ─── Sidebar overlay (mobile) ─── */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(26, 25, 23, 0.3);
    z-index: 49;
}

/* ─── Responsive ─── */
@media (max-width: 960px) {
    .wiki-sidebar {
        position: fixed;
        top: var(--topbar-h);
        left: 0;
        z-index: 50;
        background: var(--bg);
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        box-shadow: 4px 0 24px rgba(26, 25, 23, 0.08);
    }

    .wiki-sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay.open {
        display: block;
    }

    .sidebar-toggle {
        display: flex;
    }
}

@media (max-width: 640px) {
    .fingerprint {
        grid-template-columns: 1fr;
    }

    .fingerprint-row:nth-child(odd) {
        border-right: none;
    }

    .fingerprint-row {
        border-bottom: 1px solid var(--divider);
    }

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

    .pros-cons {
        grid-template-columns: 1fr;
    }

    .page-nav {
        grid-template-columns: 1fr;
    }

    .page-nav-link:last-child { text-align: left; }

    .wiki-main {
        padding: 20px 16px 80px;
    }

    .topbar-back span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* ─── RTL support (Arabic) ─── */
[dir="rtl"] .wiki-sidebar {
    border-right: none;
    border-left: 1px solid var(--divider);
    padding: 24px 24px 24px 0;
}

[dir="rtl"] .sidebar-nav .nav-indent {
    padding-left: 12px;
    padding-right: 24px;
}

[dir="rtl"] .callout {
    border-left: none;
    border-right: 3px solid;
}

[dir="rtl"] .callout-tip { border-right-color: var(--blue); }
[dir="rtl"] .callout-warn { border-right-color: var(--yellow); }
[dir="rtl"] .callout-bobcorn { border-right-color: var(--accent); }

[dir="rtl"] .pros-list li, [dir="rtl"] .cons-list li {
    padding-left: 0;
    padding-right: 20px;
}

[dir="rtl"] .pros-list li::before, [dir="rtl"] .cons-list li::before {
    left: auto;
    right: 0;
}

@media (max-width: 960px) {
    [dir="rtl"] .wiki-sidebar {
        left: auto;
        right: 0;
        transform: translateX(100%);
    }

    [dir="rtl"] .wiki-sidebar.open {
        transform: translateX(0);
    }
}