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

:root {
    --bg: #100e0c;
    --bg-2: #1c1916;
    --bg-3: #262220;
    --bg-4: #322f2b;
    --bg-5: #403c38;
    --tx: #f5edd8;
    --tx-2: #d8cebc;
    --tx-3: #a89a88;
    --tx-4: #79685a;
    --tx-5: #584f45;
    --accent: #c69f2a;
}
[data-theme="light"] {
    --bg: #fffcef;
    --bg-2: #f2edde;
    --bg-3: #e5dfd0;
    --bg-4: #d5cfc0;
    --bg-5: #c0b9aa;
    --tx: #1a1512;
    --tx-2: #3d3228;
    --tx-3: #6a5c4c;
    --tx-4: #8e806f;
    --tx-5: #b2a899;
    --accent: #c69f2a;
}

body {
    background: var(--bg);
    color: var(--tx-2);
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui,
        sans-serif;
    font-size: 15px;
    line-height: 1.6;
}

.wrap {
    max-width: 960px;
    margin: 0 auto;
    padding: 48px 32px 96px;
}

h1 {
    font-size: 28px;
    font-weight: 600;
    color: var(--tx);
    letter-spacing: -0.02em;
}

h2 {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--tx-4);
    padding-bottom: 10px;
    border-bottom: 1px solid var(--bg-3);
    margin-bottom: 24px;
}

h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--tx-3);
    margin: 36px 0 12px;
}
h3:first-child {
    margin-top: 0;
}

p {
    color: var(--tx-3);
    line-height: 1.75;
}

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

code {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 12px;
    background: var(--bg-3);
    color: var(--tx-3);
    padding: 1px 5px;
    border-radius: 3px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 200;
    background: var(--bg);
    border-bottom: 1px solid var(--bg-3);
}

.header-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 32px;
    height: 52px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.header-wordmark {
    font-size: 15px;
    font-weight: 600;
    color: var(--tx);
    letter-spacing: -0.01em;
}

.header-nav {
    display: flex;
    gap: 20px;
    flex: 1;
}

.header-nav a {
    font-size: 13px;
    font-weight: 500;
    color: var(--tx-4);
    text-decoration: none;
    transition: color 0.12s;
    white-space: nowrap;
}

.header-nav a:hover {
    color: var(--tx);
    text-decoration: none;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.github-link {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    font-weight: 500;
    color: var(--tx-3);
    text-decoration: none;
    transition: color 0.12s;
}

.github-link:hover {
    color: var(--tx);
    text-decoration: none;
}

.hero {
    margin-bottom: 48px;
}

.tagline {
    font-size: 14px;
    color: var(--tx-4);
    display: block;
    margin-top: 6px;
}

section {
    margin-bottom: 56px;
    scroll-margin-top: 68px;
}

/* ── Theme switcher ──────────────────────────────── */

.mode-switcher {
    display: flex;
    flex-direction: row;
    gap: 2px;
    background: var(--bg-2);
    border: 1px solid var(--bg-4);
    border-radius: 10px;
    padding: 3px;
}

.mode-option {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 4px 8px;
    border-radius: 7px;
    cursor: pointer;
    transition: background 0.12s;
}
.mode-option:not(.active):hover {
    background: var(--bg-3);
}
.mode-option.active {
    cursor: default;
}

.mode-label {
    font:
        600 10px/1 ui-monospace,
        "SF Mono",
        Menlo,
        monospace;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--tx-4);
    transition: color 0.12s;
}
.mode-option.active .mode-label {
    color: var(--accent);
}

.mode-pill {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ── Editor preview ──────────────────────────────── */

.preview-window {
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--bg-3);
    user-select: none;
}

.preview-titlebar {
    background: var(--bg-3);
    height: 38px;
    display: flex;
    align-items: flex-end;
    padding: 0 16px 0;
    gap: 0;
    flex-shrink: 0;
}

.traffic-lights {
    display: flex;
    gap: 6px;
    align-items: center;
    padding-bottom: 11px;
    flex-shrink: 0;
}

.traffic {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.tab-strip {
    display: flex;
    align-items: flex-end;
    height: 100%;
    margin-left: 16px;
    gap: 2px;
}

.preview-tab {
    height: 28px;
    background: var(--bg);
    border-radius: 6px 6px 0 0;
    display: flex;
    align-items: center;
    padding: 0 16px;
    position: relative;
    gap: 8px;
}

.preview-tab::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 8px;
    right: 8px;
    height: 2px;
    background: var(--accent);
    border-radius: 1px 1px 0 0;
}

.preview-tab-inactive {
    height: 24px;
    background: var(--bg-2);
    border-radius: 6px 6px 0 0;
    display: flex;
    align-items: center;
    padding: 0 16px;
}

.preview-body {
    display: flex;
    height: 300px;
}

.preview-sidebar {
    background: var(--bg-2);
    width: 156px;
    flex-shrink: 0;
    border-right: 1px solid var(--bg-3);
    padding: 10px 0;
    overflow: hidden;
}

.sidebar-item {
    height: 22px;
    display: flex;
    align-items: center;
}

.preview-editor {
    background: var(--bg);
    flex: 1;
    display: flex;
    overflow: hidden;
}

.preview-gutter {
    width: 44px;
    flex-shrink: 0;
    padding: 10px 10px 10px 0;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0;
    border-right: 1px solid var(--bg-2);
}

.gutter-line {
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.preview-code {
    flex: 1;
    padding: 10px 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.code-line {
    height: 22px;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0 16px;
    flex-shrink: 0;
}

.code-line.active {
    background: var(--bg-4);
}

.blk {
    height: 7px;
    border-radius: 2px;
    flex-shrink: 0;
}

.cursor {
    width: 2px;
    height: 14px;
    background: var(--accent);
    border-radius: 1px;
    flex-shrink: 0;
    animation: blink 1.1s ease-in-out infinite;
}

@keyframes blink {
    0%,
    100% {
        opacity: 1;
    }
    45%,
    55% {
        opacity: 0;
    }
}

.preview-statusbar {
    background: var(--bg-2);
    height: 22px;
    border-top: 1px solid var(--bg-3);
    display: flex;
    align-items: center;
    padding: 0 14px;
    gap: 10px;
}

/* ── Palette swatches ────────────────────────────── */

.swatch-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.swatch {
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.chip {
    width: 56px;
    height: 36px;
    border-radius: 5px;
    transition: transform 0.1s ease;
}
.swatch:hover .chip {
    transform: translateY(-2px);
}

.chip-name,
.chip-hex {
    font:
        11px/1 ui-monospace,
        "SF Mono",
        Menlo,
        monospace;
}
.chip-name {
    color: var(--tx-4);
}
.chip-hex {
    color: var(--tx-3);
}

/* ── Shade grid ──────────────────────────────────── */

.shade-wrap {
    overflow-x: auto;
}

.shade-grid {
    display: grid;
    gap: 3px;
    min-width: 580px;
}

.shade-hdr {
    font:
        10px/1 ui-monospace,
        "SF Mono",
        Menlo,
        monospace;
    color: var(--tx-4);
    text-align: center;
    padding-bottom: 4px;
}
.shade-hdr.primary-col {
    color: var(--tx-2);
}

.shade-name {
    font:
        11px/1 ui-monospace,
        "SF Mono",
        Menlo,
        monospace;
    color: var(--tx-4);
    display: flex;
    align-items: center;
    padding-right: 8px;
}

.shade-cell {
    height: 34px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.1s ease;
}
.shade-cell:hover {
    transform: scale(1.1);
    z-index: 1;
    position: relative;
}

.shade-inner {
    border-radius: 3px;
    transition: inherit;
}
.shade-cell.primary .shade-inner {
    width: 100%;
    height: 30px;
}
.shade-cell:not(.primary) .shade-inner {
    width: 16px;
    height: 16px;
}

/* ── Tables ──────────────────────────────────────── */

table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

thead th {
    font: 11px/1.5 inherit;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--tx-4);
    text-align: left;
    padding: 0 16px 8px 0;
    border-bottom: 1px solid var(--bg-3);
}

td {
    padding: 8px 16px 8px 0;
    border-bottom: 1px solid var(--bg-2);
    vertical-align: middle;
    font-size: 13px;
    color: var(--tx-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
td:last-child {
    color: var(--tx-4);
    padding-right: 0;
    white-space: normal;
}

#t-interface th:nth-child(1),
#t-syntax th:nth-child(1),
#t-markup th:nth-child(1) { width: 18%; }
#t-interface th:nth-child(2),
#t-syntax th:nth-child(2),
#t-markup th:nth-child(2) { width: 22%; }

#t-terminal th:nth-child(1) { width: 6%; }
#t-terminal th:nth-child(2) { width: 18%; }
#t-terminal th:nth-child(3) { width: 22%; }

.ansi-hex {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 12px;
    cursor: pointer;
}

.dot {
    display: inline-block;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    margin-right: 7px;
    vertical-align: middle;
    flex-shrink: 0;
}

.token-cell {
    display: flex;
    align-items: center;
}

.token-cell.copyable {
    cursor: pointer;
    width: fit-content;
}

.token-cell.copyable:hover code {
    color: var(--tx);
    text-decoration: underline;
}

.ansi-n {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    color: var(--tx-4);
    width: 28px;
}

/* ── Toast ───────────────────────────────────────── */

#toast {
    position: absolute;
    background: var(--bg-4);
    color: var(--tx);
    font:
        12px/1 ui-monospace,
        "SF Mono",
        Menlo,
        monospace;
    padding: 5px 10px;
    border-radius: 4px;
    opacity: 0;
    transition: opacity 0.15s;
    pointer-events: none;
    white-space: nowrap;
    z-index: 9999;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}
#toast.show {
    opacity: 1;
}

/* ── Ports ───────────────────────────────────────── */

#port-search {
    width: 100%;
    box-sizing: border-box;
    background: var(--bg-2);
    border: 1px solid var(--bg-3);
    border-radius: 6px;
    color: var(--tx);
    font-size: 13px;
    font-family: inherit;
    padding: 7px 12px;
    margin-bottom: 8px;
    outline: none;
}

#port-search::placeholder {
    color: var(--tx-4);
}

#port-search:focus {
    border-color: var(--amber);
}

.port-list {
    list-style: none;
}

.port-item {
    display: flex;
    align-items: baseline;
    gap: 20px;
    padding: 11px 0;
    border-bottom: 1px solid var(--bg-2);
    font-size: 14px;
}

.port-item a {
    font-weight: 600;
    min-width: 90px;
}

.port-tag {
    color: var(--tx-4);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.section-note {
    font-size: 13px;
    margin-bottom: 16px;
}

/* ── Footer ──────────────────────────────────────── */

footer {
    border-top: 1px solid var(--bg-3);
    padding-top: 24px;
    font-size: 13px;
    color: var(--tx-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

kbd {
    border: 1px solid var(--bg-5);
    padding: 1px 6px;
    border-radius: 3px;
    font:
        11px/1.6 ui-monospace,
        "SF Mono",
        Menlo,
        monospace;
    color: var(--tx-4);
}