@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* Blocked in China brand: dark navy + BIC green accent (#80CD78, blockedinchinaplugin.com) */
:root {
    --bg-base: #0B1219;
    --bg-subtle: #0F1A26;
    --bg-muted: #162130;
    --bg-hover: rgba(255, 255, 255, 0.05);
    --bg-active: #102A18;
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-default: rgba(255, 255, 255, 0.12);
    --text-primary: #E8ECF1;
    --text-secondary: #B8C2CC;
    --text-muted: #7A8A99;
    --primary: #80CD78;
    --primary-hover: #A6DC9E;
    --primary-subtle: rgba(128, 205, 120, 0.14);
    --primary-bg: rgba(128, 205, 120, 0.06);
    --success: #34D399;
    --success-bg: rgba(52, 211, 153, 0.08);
    --success-border: rgba(52, 211, 153, 0.2);
    --success-text: #a7f3d0;
    --warning: #FBBF24;
    --warning-bg: rgba(251, 191, 36, 0.08);
    --warning-border: rgba(251, 191, 36, 0.2);
    --warning-text: #fde68a;
    --danger: #F87171;
    --danger-bg: rgba(248, 113, 113, 0.08);
    --danger-border: rgba(248, 113, 113, 0.2);
    --danger-text: #fca5a5;
    --info: #60A5FA;
    --info-bg: rgba(96, 165, 250, 0.08);
    --info-border: rgba(96, 165, 250, 0.2);
    --info-text: #93c5fd;
    --header-bg: #0F1A26;
    --sidebar-width: 280px;
    --header-height: 64px;
    --content-max-width: 800px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

html {
    color-scheme: dark;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-base);
    color: var(--text-secondary);
    line-height: 1.65;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary-hover);
    text-decoration: none;
    transition: color 0.15s;
}

a:hover {
    color: var(--text-primary);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    height: var(--header-height);
    background: rgba(11, 18, 25, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
}

.header-inner {
    max-width: 1440px;
    margin: 0 auto;
    width: 100%;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    flex-shrink: 0;
}

.header-logo-icon {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--primary-subtle);
}

.header-logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.header-logo-text {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.header-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.header-links a {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.15s;
}

.header-links a:hover {
    color: var(--text-primary);
}

.header-links a.header-download-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.85rem;
    background: var(--primary);
    color: #fff !important;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background 0.15s;
    text-decoration: none;
}

.header-download-btn:hover {
    background: var(--primary-hover);
    color: #fff;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    margin-left: -0.5rem;
}

.menu-toggle svg {
    display: block;
}

.site-layout {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    padding: 0 2rem;
}

.sidebar {
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    overflow-y: auto;
    padding: 1.5rem 0 2rem 0;
    margin-right: 3rem;
    scrollbar-width: thin;
    scrollbar-color: var(--border-subtle) transparent;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-subtle); border-radius: 2px; }

.nav-group { margin-bottom: 0.25rem; }

.nav-group-title {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 1.25rem 0.75rem 0.5rem;
}

.nav-group:first-child .nav-group-title { padding-top: 0.25rem; }

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.4rem 0.75rem;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    transition: all 0.15s;
    text-decoration: none;
    line-height: 1.4;
}

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

.nav-link.active {
    background: var(--primary-subtle);
    color: var(--primary-hover);
    font-weight: 600;
    position: relative;
}

.nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.main-content {
    flex: 1;
    min-width: 0;
    max-width: var(--content-max-width);
    padding: 2rem 0 4rem;
}

.page-header { margin-bottom: 2rem; }

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.breadcrumb a { color: var(--primary-hover); }
.breadcrumb-sep { color: var(--text-muted); opacity: 0.4; }

h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.page-description {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 2.5rem 0 1rem;
    letter-spacing: -0.01em;
    line-height: 1.3;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-subtle);
}

.content h2:first-child { border-top: none; margin-top: 0; padding-top: 0; }

.content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 2rem 0 0.75rem;
    line-height: 1.3;
}

.content h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 1.5rem 0 0.5rem;
}

.content p { margin: 0.75rem 0; }
.content p+p { margin-top: 0.5rem; }
.content strong { color: var(--text-primary); font-weight: 600; }
.content ul, .content ol { margin: 0.75rem 0; padding-left: 1.5rem; }
.content li { margin: 0.35rem 0; }
.content li::marker { color: var(--text-muted); }

.hint {
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    margin: 1.25rem 0;
    display: flex;
    gap: 0.75rem;
    font-size: 0.9rem;
    line-height: 1.6;
}

.hint-icon { flex-shrink: 0; width: 20px; height: 20px; margin-top: 2px; }
.hint-content { flex: 1; min-width: 0; }
.hint-content p { margin: 0.25rem 0; }
.hint-content p:first-child { margin-top: 0; }
.hint-content a { text-decoration: underline; text-underline-offset: 2px; }
.hint-content ul, .hint-content ol { margin: 0.5rem 0; padding-left: 1.25rem; }

.hint.success { background: var(--success-bg); border: 1px solid var(--success-border); color: var(--success-text); }
.hint.success .hint-icon { color: var(--success); }
.hint.success a { color: var(--success); }
.hint.warning { background: var(--warning-bg); border: 1px solid var(--warning-border); color: var(--warning-text); }
.hint.warning .hint-icon { color: var(--warning); }
.hint.warning a { color: var(--warning); }
.hint.danger { background: var(--danger-bg); border: 1px solid var(--danger-border); color: var(--danger-text); }
.hint.danger .hint-icon { color: var(--danger); }
.hint.danger a { color: var(--danger); }
.hint.info { background: var(--info-bg); border: 1px solid var(--info-border); color: var(--info-text); }
.hint.info .hint-icon { color: var(--info); }
.hint.info a { color: var(--info-text); }

code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85em;
    background: var(--bg-muted);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
}

pre {
    background: var(--bg-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    margin: 1rem 0;
    overflow-x: auto;
    font-size: 0.85rem;
    line-height: 1.7;
}

pre code { background: none; border: none; padding: 0; font-size: inherit; color: var(--text-secondary); }

.table-wrap {
    overflow-x: auto;
    margin: 1rem 0;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
thead { background: var(--bg-muted); }
th {
    text-align: left;
    padding: 0.65rem 1rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.8125rem;
    border-bottom: 1px solid var(--border-subtle);
}
td { padding: 0.6rem 1rem; border-bottom: 1px solid var(--border-subtle); vertical-align: top; }
tr:last-child td { border-bottom: none; }
tr:hover { background: var(--bg-hover); }
td strong { color: var(--text-primary); }

figure { margin: 1.5rem 0; text-align: center; }
figure img { max-width: 100%; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); }
figcaption { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.5rem; font-style: italic; }
.content img { max-width: 100%; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); }

.content-ref {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1.25rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    margin: 0.75rem 0;
    transition: all 0.2s;
    text-decoration: none;
    color: var(--text-secondary);
}

.content-ref:hover { border-color: var(--primary); color: var(--primary-hover); }
.content-ref-title { font-size: 0.95rem; }
.content-ref-arrow { color: var(--text-muted); transition: transform 0.2s, color 0.2s; flex-shrink: 0; }
.content-ref:hover .content-ref-arrow { transform: translateX(3px); color: var(--primary-hover); }

.page-nav { display: flex; gap: 0.75rem; margin-top: 3rem; padding-top: 1.5rem; }
.page-nav-link {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: border-color 0.2s;
}
.page-nav-link:hover { border-color: var(--primary); }
.page-nav-link .label { font-size: 0.75rem; color: var(--text-muted); display: block; }
.page-nav-link .title { color: var(--text-primary); font-size: 0.95rem; line-height: 1.3; }
.page-nav-link:hover .title { color: var(--primary-hover); }
.page-nav-link.prev { flex-direction: row; }
.page-nav-link.next { justify-content: flex-end; text-align: right; }
.page-nav-link .arrow { color: var(--text-muted); flex-shrink: 0; font-size: 0.75rem; }

.steps { counter-reset: step; }
.step { counter-increment: step; position: relative; padding-left: 2.5rem; margin: 1.25rem 0; }
.step::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0;
    width: 1.75rem;
    height: 1.75rem;
    background: var(--primary-subtle);
    color: var(--primary-hover);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
}

.content hr { border: none; border-top: 1px solid var(--border-subtle); margin: 2rem 0; }

.content h2[id], .content h3[id], .content h4[id] { scroll-margin-top: calc(var(--header-height) + 1.5rem); }
.heading-anchor { color: var(--text-muted); opacity: 0; margin-left: 0.35em; font-weight: 400; transition: opacity 0.15s; text-decoration: none; }
h2:hover .heading-anchor, h3:hover .heading-anchor, h4:hover .heading-anchor { opacity: 1; }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.feature-card {
    background: var(--bg-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.feature-card-icon { font-size: 1.5rem; margin-bottom: 0.5rem; }
.feature-card h3 { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); margin: 0 0 0.25rem; }
.feature-card p { font-size: 0.85rem; color: var(--text-muted); margin: 0; line-height: 1.5; }

@media (max-width: 1024px) {
    .sidebar {
        position: fixed; top: 0; left: 0; height: 100vh; z-index: 40;
        background: var(--bg-base); border-right: 1px solid var(--border-subtle);
        transform: translateX(-100%); transition: transform 0.25s ease;
        padding-top: calc(var(--header-height) + 1rem); margin-right: 0;
    }
    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.5); z-index: 39; opacity: 0; pointer-events: none; transition: opacity 0.25s; }
    .sidebar-overlay.open { opacity: 1; pointer-events: auto; }
    .menu-toggle { display: block; }
    .site-layout { padding: 0 1rem; }
    .header-inner { padding: 0 1rem; }
    .header-links { gap: 1rem; }
}

@media (max-width: 768px) {
    h1 { font-size: 1.65rem; }
    .content h2 { font-size: 1.3rem; }
    .content h3 { font-size: 1.1rem; }
    .page-nav { flex-direction: column; }
    .feature-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    h1 { font-size: 1.4rem; }
}


/* ────────────────────────────────────────────────────────────────────────
   Mobile header — clean pattern (Brandon fix 2026-05-19)
   At ≤768px: ONLY hamburger + logo icon + ONE primary CTA visible.
   All other links (Main Site, Download Free, Support) live INSIDE the
   hamburger drawer, in a CTA section below the nav.
   ──────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .header-logo-text { display: none; }
    .header-links { gap: 0.5rem; }
    .header-links > a:not(.header-buy) { display: none; }
    .header-links a.header-buy {
        display: inline-flex;
        align-items: center;
        padding: 0.4rem 0.85rem;
        background: var(--primary);
        color: #fff !important;
        font-size: 0.8rem;
        font-weight: 600;
        border-radius: var(--radius-md);
        white-space: nowrap;
    }
    .header-links a.header-buy:hover { background: var(--primary-hover); color: #fff !important; }
}

/* Drawer CTA section — appears INSIDE the sidebar drawer, below the nav */
.sidebar-cta { display: none; }
@media (max-width: 1024px) {
    .sidebar-cta {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
        padding: 1rem 0.75rem 1.5rem;
        margin-top: 1.5rem;
        border-top: 1px solid var(--border-subtle);
    }
    .sidebar-cta-label {
        font-size: 0.6875rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        color: var(--text-muted);
        padding: 0 0.25rem 0.5rem;
    }
    .sidebar-cta a {
        display: block;
        padding: 0.65rem 1rem;
        text-align: center;
        border-radius: var(--radius-md);
        font-size: 0.875rem;
        font-weight: 500;
        text-decoration: none;
        transition: all 0.15s;
    }
    .sidebar-cta a.cta-primary { background: var(--primary); color: #fff; font-weight: 600; }
    .sidebar-cta a.cta-primary:hover { background: var(--primary-hover); color: #fff; }
    .sidebar-cta a.cta-secondary {
        background: var(--bg-subtle);
        color: var(--text-primary);
        border: 1px solid var(--border-subtle);
    }
    .sidebar-cta a.cta-secondary:hover { border-color: var(--primary); color: var(--primary-hover); }
    .sidebar-cta a.cta-tertiary { background: transparent; color: var(--text-muted); font-size: 0.8rem; }
    .sidebar-cta a.cta-tertiary:hover { color: var(--text-primary); }
}


/* gp-docs: page-header contextual menu */
.page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}
.page-header-main {
    flex: 1;
    min-width: 0;
}