/* muhan.dev — Tokyo Night developer documentation portal */

:root {
    --bg: #1a1b26;
    --panel: #24283b;
    --accent: #7aa2f7;
    --text: #c0caf5;
    --string: #9ece6a;
    --error: #f7768e;
    --border: #414868;

    --text-dim: rgba(192, 202, 245, 0.62);
    --text-faint: rgba(192, 202, 245, 0.38);
    --accent-soft: rgba(122, 162, 247, 0.10);
    --accent-edge: rgba(122, 162, 247, 0.35);
    --string-soft: rgba(158, 206, 106, 0.12);
    --error-soft: rgba(247, 118, 142, 0.14);

    --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
    --font-body: "Inter", system-ui, sans-serif;
    --font-mono: "Fira Code", "JetBrains Mono", ui-monospace, Menlo, monospace;

    --sidebar-w: 240px;
    --max-content: 740px;
    --toc-w: 220px;
    --radius: 6px;
    --gutter: 36px;
}

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

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow: hidden;
    background-image:
        radial-gradient(circle at 18% 12%, rgba(122,162,247,0.06), transparent 35%),
        radial-gradient(circle at 92% 88%, rgba(158,206,106,0.04), transparent 40%);
}

::selection {
    background: var(--accent-soft);
    color: var(--text);
}

/* ========== Layout ========== */

.app {
    display: grid;
    grid-template-columns: var(--sidebar-w) 1fr;
    height: 100vh;
}

/* ========== Sidebar ========== */

.sidebar {
    background: var(--panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.sidebar::before {
    content: "";
    position: absolute;
    top: 0;
    right: -1px;
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--border) 20%, var(--border) 80%, transparent);
    pointer-events: none;
}

.sidebar__brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 18px 16px;
    border-bottom: 1px solid var(--border);
}

.brand__logo {
    width: 34px;
    height: 34px;
    border: 1px solid var(--border);
    border-radius: 4px;
    display: grid;
    place-items: center;
    background: rgba(122, 162, 247, 0.06);
    position: relative;
    flex: 0 0 34px;
}

.brand__logo::after {
    content: "";
    position: absolute;
    inset: 3px;
    border: 1px solid var(--border);
    border-radius: 2px;
    pointer-events: none;
}

.brand__symbol {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 600;
    line-height: 1;
}

.brand__text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow: hidden;
}

.brand__name {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
}

.brand__sub {
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--text-faint);
    letter-spacing: 0.02em;
}

.sidebar__search {
    margin: 12px;
    background: rgba(26, 27, 38, 0.7);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.sidebar__search:focus-within {
    border-color: var(--accent-edge);
    box-shadow: 0 0 0 3px rgba(122, 162, 247, 0.06);
}

.search__prompt {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 12px;
}

.search__input {
    flex: 1;
    background: transparent;
    border: 0;
    outline: 0;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 12px;
}

.search__input::placeholder {
    color: var(--text-faint);
}

.search__hint {
    color: var(--text-faint);
    font-family: var(--font-mono);
    font-size: 10.5px;
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 1px 5px;
}

.sidebar__nav {
    flex: 1;
    overflow-y: auto;
    padding: 6px 8px 16px;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.sidebar__nav::-webkit-scrollbar { width: 6px; }
.sidebar__nav::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.tree__group {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.tree__heading {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.14em;
    padding: 14px 10px 6px;
}

.tree__node {
    display: flex;
    flex-direction: column;
}

.node__toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 0;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 12.5px;
    text-align: left;
    padding: 5px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.node__toggle:hover {
    background: rgba(122, 162, 247, 0.05);
    color: var(--text);
}

.node__caret {
    width: 10px;
    color: var(--text-faint);
    font-size: 10px;
    transition: transform 0.2s ease;
    display: inline-block;
}

.node__icon {
    font-size: 11px;
    filter: grayscale(0.2) brightness(1.05);
    opacity: 0.85;
}

.node__label {
    color: var(--text);
    font-weight: 500;
}

.tree__children {
    list-style: none;
    margin: 2px 0 4px 14px;
    padding-left: 8px;
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 1px;
    overflow: hidden;
    max-height: 600px;
    transition: max-height 0.25s ease, opacity 0.2s ease;
}

.tree__node:not(.is-open) .tree__children {
    max-height: 0;
    opacity: 0;
    margin-bottom: 0;
}

.tree__node:not(.is-open) .node__caret {
    transform: rotate(-90deg);
}

.tree__leaf {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    margin: 0 0 0 -4px;
    border-radius: 3px;
    cursor: pointer;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 12px;
    border-left: 2px solid transparent;
    padding-left: 8px;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.tree__leaf:hover {
    color: var(--text);
    background: rgba(122, 162, 247, 0.05);
}

.tree__leaf.is-active {
    background: var(--accent-soft);
    border-left: 2px solid var(--accent);
    color: var(--text);
}

.leaf__icon {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--accent);
    background: rgba(122, 162, 247, 0.08);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 1px 4px;
    letter-spacing: 0.04em;
    min-width: 22px;
    text-align: center;
    flex: 0 0 auto;
}

.tree__leaf:nth-of-type(odd) .leaf__icon { color: var(--accent); }
.tree__leaf .leaf__icon { color: var(--accent); }

.tree__file {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 10px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 12px;
}

.tree__divider {
    height: 1px;
    background: var(--border);
    margin: 14px 8px 4px;
    opacity: 0.6;
}

.sidebar__foot {
    border-top: 1px solid var(--border);
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-dim);
}

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

.foot__row--muted {
    color: var(--text-faint);
}

.foot__dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--text-faint);
    box-shadow: 0 0 0 2px rgba(192, 202, 245, 0.06);
}

.foot__dot--ok {
    background: var(--string);
    box-shadow: 0 0 8px rgba(158, 206, 106, 0.45);
}

/* ========== Main content ========== */

.content {
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0 var(--gutter) 96px;
    position: relative;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
    display: grid;
    grid-template-columns: minmax(0, 1fr) var(--toc-w);
    column-gap: 40px;
    align-content: start;
}

.content::-webkit-scrollbar { width: 8px; }
.content::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

.content__header {
    grid-column: 1 / -1;
    max-width: var(--max-content);
    padding: 56px 0 28px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 36px;
    position: relative;
}

/* Recursive nested borders — Droste effect */

.droste {
    position: relative;
    width: 110px;
    height: 110px;
    margin-bottom: 28px;
    display: grid;
    place-items: center;
}

.droste__rect {
    position: absolute;
    border: 1px solid var(--border);
    border-radius: 4px;
    pointer-events: none;
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.4s ease;
}

.droste__rect:nth-child(1) { inset: 0;  border-color: var(--border); }
.droste__rect:nth-child(2) { inset: 10px; }
.droste__rect:nth-child(3) { inset: 20px; }
.droste__rect:nth-child(4) { inset: 30px; }
.droste__rect:nth-child(5) { inset: 40px; border-color: var(--accent-edge); }

.droste__core {
    position: relative;
    color: var(--accent);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 22px;
    line-height: 1;
    text-shadow: 0 0 14px rgba(122, 162, 247, 0.45);
}

.droste:hover .droste__rect:nth-child(1) { transform: scale(1.04); border-color: var(--accent-edge); }
.droste:hover .droste__rect:nth-child(2) { transform: scale(1.03); }
.droste:hover .droste__rect:nth-child(3) { transform: scale(1.02); }
.droste:hover .droste__rect:nth-child(5) { border-color: var(--accent); }

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-dim);
    margin-bottom: 18px;
}

.crumb { color: var(--text-dim); }
.crumb--current { color: var(--accent); }
.crumb__sep { color: var(--text-faint); }

.title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    line-height: 1.18;
    letter-spacing: -0.022em;
    color: var(--text);
    max-width: 22ch;
    margin-bottom: 14px;
}

.subtitle {
    font-size: 0.98rem;
    line-height: 1.7;
    color: var(--text-dim);
    max-width: 60ch;
    margin-bottom: 22px;
}

.meta-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--text-dim);
}

.meta-strip__item {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.meta-strip__k {
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 10px;
}

.meta-strip__v {
    color: var(--text);
}

/* ========== Document ========== */

.doc {
    grid-column: 1 / 2;
    max-width: var(--max-content);
    width: 100%;
}

.doc__section {
    padding: 8px 0 28px;
    scroll-margin-top: 24px;
}

.doc__section + .doc__section {
    border-top: 1px solid var(--border);
    padding-top: 32px;
}

.h2 {
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 2.5vw, 1.6rem);
    font-weight: 600;
    letter-spacing: -0.018em;
    color: var(--text);
    margin-bottom: 16px;
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.h2__hash {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.85em;
    opacity: 0.8;
}

.doc p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-dim);
    margin-bottom: 14px;
    max-width: 64ch;
}

.doc p strong { color: var(--text); font-weight: 600; }

.ic {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: rgba(122, 162, 247, 0.08);
    color: var(--accent);
    border: 1px solid var(--border);
    padding: 1px 6px;
    border-radius: 3px;
}

/* ========== Code blocks ========== */

.codeblock {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin: 16px 0 24px;
    position: relative;
    box-shadow: 0 1px 0 rgba(0,0,0,0.25), 0 6px 20px -10px rgba(0,0,0,0.4);
}

.codeblock__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 8px 6px 10px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(to bottom, rgba(255,255,255,0.02), transparent);
}

.codeblock__tabs {
    display: flex;
    gap: 4px;
}

.tab {
    background: transparent;
    border: 0;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 3px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
}

.tab:hover { color: var(--text); background: rgba(122, 162, 247, 0.05); }

.tab.is-active {
    background: rgba(122, 162, 247, 0.08);
    border-color: var(--border);
    color: var(--accent);
}

.codeblock__copy {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.codeblock__copy:hover {
    color: var(--accent);
    border-color: var(--accent-edge);
}

.codeblock__copy.is-copied {
    color: var(--string);
    border-color: rgba(158, 206, 106, 0.5);
}

.codeblock__body {
    overflow-x: auto;
    padding: 14px 0 14px 0;
}

.code {
    font-family: var(--font-mono);
    font-size: 12.5px;
    line-height: 1.7;
    color: var(--text);
    display: grid;
    grid-template-columns: 42px 1fr;
    column-gap: 14px;
    white-space: pre;
}

.code .ln {
    color: var(--border);
    text-align: right;
    user-select: none;
    padding: 0 4px;
    border-right: 1px solid rgba(65, 72, 104, 0.4);
    font-size: 11.5px;
}

.code .cl {
    padding-right: 18px;
    white-space: pre;
}

/* token colors — Tokyo Night palette */
.tk-kw { color: #bb9af7; }                       /* keyword (purple-ish) */
.tk-fn { color: var(--accent); }                  /* function */
.tk-id { color: var(--text); }                    /* identifier */
.tk-st { color: var(--string); }                  /* string */
.tk-nm { color: #ff9e64; }                        /* number */
.tk-cm { color: rgba(192, 202, 245, 0.42); font-style: italic; }
.tk-pr { color: var(--error); }                   /* prompt $ */
.tk-fl { color: #e0af68; }                        /* flag */
.tk-op { color: var(--accent); }                  /* operator */
.tk-ty { color: #2ac3de; }                        /* type */

/* ========== Callouts ========== */

.callout {
    display: grid;
    grid-template-columns: 70px 1fr;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-left: 2px solid var(--accent);
    border-radius: var(--radius);
    background: rgba(122, 162, 247, 0.04);
    margin: 18px 0 22px;
}

.callout__tag {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent);
    letter-spacing: 0.16em;
    padding-top: 3px;
}

.callout__body {
    font-size: 0.92rem;
    line-height: 1.65;
    color: var(--text-dim);
}

.callout__body kbd {
    font-family: var(--font-mono);
    font-size: 10.5px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-bottom-width: 2px;
    color: var(--text);
    border-radius: 3px;
    padding: 1px 5px;
}

/* ========== Formula ========== */

.formula {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 16px;
    padding: 22px 18px;
    margin: 18px 0 22px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 16px;
    color: var(--text);
    overflow-x: auto;
    flex-wrap: wrap;
}

.formula__lhs,
.formula__rhs {
    display: inline-flex;
    align-items: baseline;
}

.formula__eq {
    color: var(--accent);
    font-size: 18px;
}

.formula__var { color: var(--accent); font-style: italic; }
.formula__sub { font-size: 0.7em; color: var(--text-dim); padding-left: 1px; }
.formula__sup { font-size: 0.7em; color: var(--accent); padding-left: 1px; }

/* ========== Two-up grid ========== */

.grid-two {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

@media (min-width: 1180px) {
    .grid-two {
        grid-template-columns: 1fr 1fr;
    }
}

.grid-two .codeblock { margin: 0; }

/* ========== Visualisation ========== */

.viz {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--panel);
    overflow: hidden;
    margin: 18px 0 22px;
}

.viz__head {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.viz__title {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text);
}

.viz__legend {
    display: flex;
    gap: 8px;
}

.legend__chip {
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 3px;
    border: 1px solid var(--border);
    color: var(--text-dim);
    letter-spacing: 0.03em;
}

.legend__chip--blue  { color: var(--accent); border-color: var(--accent-edge); }
.legend__chip--green { color: var(--string); border-color: rgba(158, 206, 106, 0.4); }
.legend__chip--pink  { color: var(--error);  border-color: rgba(247, 118, 142, 0.4); }

.viz__body {
    position: relative;
    height: 240px;
    overflow: hidden;
    background:
        linear-gradient(rgba(65,72,104,0.20) 1px, transparent 1px) 0 0 / 100% 24px,
        linear-gradient(90deg, rgba(65,72,104,0.18) 1px, transparent 1px) 0 0 / 24px 100%;
}

.call-node {
    position: absolute;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 24px;
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11px;
    border-radius: 3px;
    display: grid;
    place-items: center;
    transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    opacity: 0;
}

.call-node.is-visible { opacity: 1; }

.call-node.is-active {
    background: rgba(122, 162, 247, 0.18);
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(122, 162, 247, 0.12);
}

.call-node.is-leaf {
    background: rgba(247, 118, 142, 0.10);
    color: var(--error);
    border-color: rgba(247, 118, 142, 0.55);
}

.call-node.is-memo {
    background: rgba(158, 206, 106, 0.10);
    color: var(--string);
    border-color: rgba(158, 206, 106, 0.55);
}

.call-edge {
    position: absolute;
    height: 1px;
    background: linear-gradient(to right, var(--border), rgba(65, 72, 104, 0.2));
    transform-origin: 0 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.call-edge.is-visible { opacity: 0.9; }

.call-edge.is-active {
    background: linear-gradient(to right, var(--accent), var(--accent-edge));
}

.viz__foot {
    padding: 10px 14px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-dim);
}

.viz__btn {
    background: rgba(122, 162, 247, 0.08);
    border: 1px solid var(--border);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 4px 12px;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.viz__btn:hover {
    border-color: var(--accent-edge);
    background: rgba(122, 162, 247, 0.16);
}

.viz__counter { color: var(--text-dim); }
.viz__counter span { color: var(--text); }

/* ========== Table ========== */

.table {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin: 14px 0 24px;
    font-family: var(--font-mono);
    font-size: 12px;
}

.table__row {
    display: grid;
    grid-template-columns: 1.1fr 1.6fr 0.8fr 1.4fr;
    align-items: center;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s ease;
}

.table__row:last-child { border-bottom: 0; }

.table__row:hover:not(.table__row--head) {
    background: rgba(122, 162, 247, 0.04);
}

.table__row--head {
    background: rgba(122, 162, 247, 0.06);
    color: var(--text-faint);
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.table__cell {
    padding: 10px 14px;
    color: var(--text-dim);
    border-right: 1px solid var(--border);
}

.table__cell:last-child { border-right: 0; }
.table__row--head .table__cell { color: var(--text-faint); padding-top: 8px; padding-bottom: 8px; }

.table__cell .ic { background: transparent; border: 0; padding: 0; color: var(--accent); }

/* ========== Changelog ========== */

.changelog {
    list-style: none;
    margin: 8px 0 12px;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.changelog__item {
    display: grid;
    grid-template-columns: 70px 1fr 70px;
    align-items: center;
    gap: 14px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--panel);
    font-family: var(--font-mono);
    font-size: 12px;
}

.changelog__tag {
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-align: center;
    padding: 2px 0;
    border-radius: 3px;
    border: 1px solid var(--border);
}

.changelog__tag--add   { color: var(--string); border-color: rgba(158, 206, 106, 0.4); background: rgba(158, 206, 106, 0.08); }
.changelog__tag--fix   { color: var(--accent); border-color: var(--accent-edge); background: rgba(122, 162, 247, 0.08); }
.changelog__tag--break { color: var(--error);  border-color: rgba(247, 118, 142, 0.4); background: rgba(247, 118, 142, 0.08); }

.changelog__msg {
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.92rem;
}

.changelog__date {
    color: var(--text-faint);
    text-align: right;
    font-size: 11px;
}

/* ========== Footer pager ========== */

.doc__footer {
    border-top: 1px solid var(--border);
    margin-top: 36px;
    padding: 28px 0 0;
}

.footer__pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 18px;
}

.pager {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.18s ease;
    text-align: left;
    font-family: var(--font-body);
    color: var(--text-dim);
}

.pager:hover {
    border-color: var(--accent-edge);
    color: var(--text);
    transform: translateY(-1px);
}

.pager--next {
    justify-content: flex-end;
    text-align: right;
}

.pager__hint {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 14px;
}

.pager__group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pager__k {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

.pager__v {
    font-size: 0.92rem;
    color: var(--text);
}

.footer__edit {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-faint);
    text-align: center;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

/* ========== TOC sidebar ========== */

.toc {
    grid-column: 2 / 3;
    position: sticky;
    top: 56px;
    align-self: start;
    padding: 56px 0 16px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    max-height: calc(100vh - 32px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.toc::-webkit-scrollbar { width: 4px; }
.toc::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.toc__title {
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 10px;
    margin-bottom: 12px;
}

.toc__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
    border-left: 1px solid var(--border);
    padding-left: 12px;
    margin-bottom: 28px;
}

.toc__list a {
    color: var(--text-dim);
    text-decoration: none;
    padding: 4px 0;
    display: block;
    border-left: 2px solid transparent;
    margin-left: -14px;
    padding-left: 12px;
    transition: color 0.15s ease, border-color 0.15s ease;
}

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

.toc__list a.is-active {
    color: var(--accent);
    border-left-color: var(--accent);
}

.toc__widget {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
    background: var(--panel);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.widget__title {
    font-size: 10px;
    color: var(--text-faint);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.widget__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dim);
    font-size: 11px;
}

.widget__v { color: var(--text); }
.widget__v--ok { color: var(--string); }

/* ========== Command palette ========== */

.palette {
    position: fixed;
    inset: 0;
    background: rgba(15, 16, 24, 0.65);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: grid;
    place-items: start center;
    padding-top: 14vh;
    z-index: 50;
    animation: fadeIn 0.18s ease;
}

.palette[hidden] { display: none; }

.palette__inner {
    width: min(620px, 92vw);
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 24px 60px -20px rgba(0,0,0,0.6), 0 0 0 1px rgba(122, 162, 247, 0.08);
}

.palette__head {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
}

.palette__prompt {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 14px;
}

.palette__input {
    flex: 1;
    background: transparent;
    border: 0;
    outline: 0;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 14px;
}

.palette__input::placeholder { color: var(--text-faint); }

.palette__esc {
    color: var(--text-faint);
    font-family: var(--font-mono);
    font-size: 11px;
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 1px 6px;
}

.palette__list {
    list-style: none;
    max-height: 360px;
    overflow-y: auto;
    padding: 6px;
}

.palette__list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 10px;
    border-radius: 4px;
    cursor: pointer;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 12.5px;
    transition: background 0.12s ease, color 0.12s ease;
}

.palette__list li.is-cursor,
.palette__list li:hover {
    background: rgba(122, 162, 247, 0.08);
    color: var(--text);
}

.palette__list li .pl-kind {
    font-size: 9.5px;
    color: var(--accent);
    border: 1px solid var(--border);
    background: rgba(122, 162, 247, 0.06);
    padding: 1px 5px;
    border-radius: 2px;
    letter-spacing: 0.05em;
    min-width: 30px;
    text-align: center;
}

.palette__list li .pl-path {
    color: var(--text-faint);
    margin-left: auto;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* ========== Responsive ========== */

@media (max-width: 1100px) {
    .toc { display: none; }
    .content {
        grid-template-columns: 1fr;
    }
    .doc, .content__header { grid-column: 1; }
}

@media (max-width: 760px) {
    :root { --gutter: 18px; }
    .app {
        grid-template-columns: 1fr;
    }
    .sidebar {
        display: none;
    }
    .content { padding-top: 0; }
    .content__header { padding-top: 28px; }
    .changelog__item { grid-template-columns: 60px 1fr; }
    .changelog__date { grid-column: 2; text-align: left; }
    .table__row { grid-template-columns: 1fr 1fr; }
    .table__cell { border-right: 0; border-bottom: 1px solid var(--border); }
}