/* AIKINGBOT website. Copyright (c) 2026 AIKING.
   Identity: the AIKING mark's ink #111318 and mint #6ee7c0, Inter (OFL) with
   Vietnamese glyphs. Dark only, matching the desktop app's default skin. */

@font-face { font-family: "Inter Variable"; font-style: normal; font-display: swap; font-weight: 100 900;
  src: url(/assets/inter-vietnamese.5c66f9e07e.woff2) format("woff2-variations");
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: "Inter Variable"; font-style: normal; font-display: swap; font-weight: 100 900;
  src: url(/assets/inter-latin-ext.34b9c504ca.woff2) format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Inter Variable"; font-style: normal; font-display: swap; font-weight: 100 900;
  src: url(/assets/inter-latin.3100e775e8.woff2) format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

:root {
  --bg: #0d0f12;
  --bg-alt: #111318;
  --surface: #161a20;
  --surface-2: #1c2129;
  --line: #252b34;
  --line-strong: #323a45;
  --ink: #f2f4f7;
  --ink-2: #c3c9d2;
  --muted: #8b93a0;
  --mint: #6ee7c0;
  --mint-strong: #8ff0d0;
  --mint-ink: #07261c;
  --mint-soft: rgba(110, 231, 192, 0.1);
  --mint-line: rgba(110, 231, 192, 0.28);
  --warn: #f5c56b;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.04);
  --font: "Inter Variable", Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "Cascadia Mono", Menlo, Consolas, monospace;
  --container: 1180px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/1.65 var(--font); font-feature-settings: "cv11", "ss01"; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--mint); text-decoration: none; }
a:hover { color: var(--mint-strong); }
:focus-visible { outline: 2px solid var(--mint); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { margin: 0; line-height: 1.2; letter-spacing: -0.02em; font-weight: 680; }
p { margin: 0; }
code, pre { font-family: var(--mono); }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 840px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.is-hidden { display: none !important; }
.icon { width: 20px; height: 20px; flex: none; }
.skip { position: absolute; left: 16px; top: -48px; z-index: 100; background: var(--mint); color: var(--mint-ink); padding: 8px 14px; border-radius: 8px; font-weight: 600; }
.skip:focus { top: 12px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px; padding: 0 18px; border-radius: 12px; border: 1px solid transparent;
  font: 600 15px/1.2 var(--font); cursor: pointer; transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.15s; white-space: nowrap; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--mint); color: var(--mint-ink); }
.btn-primary:hover { background: var(--mint-strong); color: var(--mint-ink); }
.btn-ghost { background: rgba(255, 255, 255, 0.03); border-color: var(--line-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--mint-line); color: var(--ink); background: var(--mint-soft); }
.btn-sm { min-height: 36px; padding: 0 12px; font-size: 14px; border-radius: 10px; gap: 7px; }
.btn-sm .icon { width: 17px; height: 17px; }
.btn-lg { min-height: 52px; padding: 0 22px; font-size: 16px; }
.btn-lg span small { display: block; font-weight: 450; font-size: 12.5px; opacity: 0.78; margin-top: 2px; white-space: normal; }
.btn-lg span { text-align: left; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(13, 15, 18, 0.82); backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px); border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.header-row { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 750; letter-spacing: 0.01em; font-size: 17px; }
.brand:hover { color: var(--ink); }
.logo-mark { width: 32px; height: 32px; border-radius: 9px; box-shadow: 0 0 0 1px rgba(110, 231, 192, 0.25); }
.nav-menu { flex: 1; }
.nav-menu summary { display: none; list-style: none; }
.nav-menu summary::-webkit-details-marker { display: none; }
.nav-links { display: flex; gap: 4px; }
.nav-links a { color: var(--ink-2); font-size: 15px; font-weight: 500; padding: 8px 12px; border-radius: 9px; }
.nav-links a:hover { color: var(--ink); background: rgba(255, 255, 255, 0.05); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.lang { display: inline-flex; padding: 3px; border: 1px solid var(--line-strong); border-radius: 10px; background: rgba(255, 255, 255, 0.02); }
.lang a { font-size: 12.5px; font-weight: 650; letter-spacing: 0.04em; color: var(--muted); padding: 5px 9px; border-radius: 7px; line-height: 1; }
.lang a:hover { color: var(--ink); }
.lang a[aria-current] { background: var(--mint); color: var(--mint-ink); }

/* Hero */
.hero { position: relative; padding: 72px 0 40px; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -30% -10% auto; height: 760px; pointer-events: none;
  background: radial-gradient(48% 46% at 72% 38%, rgba(110, 231, 192, 0.14), transparent 70%), radial-gradient(40% 40% at 12% 10%, rgba(91, 141, 239, 0.08), transparent 70%); }
.hero::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
  background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px; mask-image: radial-gradient(60% 60% at 50% 30%, #000, transparent 75%); -webkit-mask-image: radial-gradient(60% 60% at 50% 30%, #000, transparent 75%); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr); gap: 56px; align-items: center; }
.hero-copy { display: flex; flex-direction: column; gap: 22px; }
.badge { align-self: flex-start; display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--mint); background: var(--mint-soft); border: 1px solid var(--mint-line); padding: 5px 12px; border-radius: 99px; }
.hero h1 { font-size: clamp(36px, 4.6vw, 58px); font-weight: 720; letter-spacing: -0.035em; line-height: 1.08; }
.lead { color: var(--ink-2); font-size: 18px; line-height: 1.65; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.cta-row .icon { width: 19px; height: 19px; }
.btn-ghost .icon { width: 16px; height: 16px; opacity: 0.7; }

.window { border-radius: var(--radius-lg); background: #0a0b0d; box-shadow: var(--shadow); overflow: hidden; border: 1px solid var(--line); }
.window-bar { display: flex; gap: 7px; padding: 11px 14px; background: #121418; border-bottom: 1px solid var(--line); }
.window-bar span { width: 11px; height: 11px; border-radius: 50%; background: #2a3038; }
.window-bar span:first-child { background: #3b4049; }
.window img { width: 100%; }
.hero-shot { position: relative; }
.hero-shot .window { transform: perspective(1800px) rotateY(-5deg) rotateX(2deg); transform-origin: left center; }
.shot-missing { aspect-ratio: 16 / 10; display: grid; place-items: center; padding: 24px; color: var(--muted); text-align: center; font-size: 14px; background: repeating-linear-gradient(45deg, #101318, #101318 12px, #12161b 12px, #12161b 24px); }

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid rgba(255, 255, 255, 0.04); }
.section-head { max-width: 720px; margin-bottom: 44px; display: flex; flex-direction: column; gap: 14px; }
.eyebrow { font-size: 13px; font-weight: 650; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mint); }
.section-head h2 { font-size: clamp(28px, 3.2vw, 40px); }

.tabs .tab-list { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 4px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); margin-bottom: 22px; }
.tab-list button { font: 600 14px/1 var(--font); color: var(--muted); background: none; border: 0; padding: 10px 16px; border-radius: 9px; cursor: pointer; }
.tab-list button:hover { color: var(--ink); }
.tab-list button[aria-selected="true"] { background: var(--surface-2); color: var(--ink); box-shadow: inset 0 0 0 1px var(--line-strong); }

.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.feature { padding: 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 12px; transition: border-color 0.2s, transform 0.2s; }
.feature:hover { border-color: var(--mint-line); transform: translateY(-2px); }
.feature-icon { width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; color: var(--mint); background: var(--mint-soft); border: 1px solid var(--mint-line); }
.feature-icon .icon { width: 22px; height: 22px; }
.feature h3 { font-size: 17px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.feature p { color: var(--ink-2); font-size: 15px; }
.tag { font-size: 11px; font-weight: 650; letter-spacing: 0.02em; color: var(--warn); border: 1px solid rgba(245, 197, 107, 0.35); background: rgba(245, 197, 107, 0.08); border-radius: 99px; padding: 2px 8px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; counter-reset: step; }
.step { position: relative; padding: 26px 24px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg); display: flex; flex-direction: column; gap: 10px; }
.step:not(:last-child)::after { content: ""; position: absolute; top: 46px; right: -17px; width: 18px; height: 1px; background: var(--line-strong); }
.step-no { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; color: var(--mint-ink); background: var(--mint); margin-bottom: 4px; }
.step h3 { font-size: 18px; }
.step p { color: var(--ink-2); font-size: 15px; }

/* Download */
.download-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 24px; align-items: start; }
.download-card { padding: 30px; border-radius: var(--radius-lg); border: 1px solid var(--mint-line); background: linear-gradient(180deg, rgba(110, 231, 192, 0.06), rgba(110, 231, 192, 0) 50%), var(--surface); display: flex; flex-direction: column; gap: 22px; }
.download-head { display: flex; align-items: center; gap: 16px; }
.download-head h3 { font-size: 22px; }
.os-badge { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: #0e2a4a; color: #5aa9ff; }
.os-badge .icon { width: 26px; height: 26px; }
.pending-note { display: none; padding: 14px 16px; border-radius: 12px; background: rgba(245, 197, 107, 0.08); border: 1px solid rgba(245, 197, 107, 0.3); color: var(--warn); font-size: 14.5px; }
.is-pending .pending-note { display: block; }
.is-pending .download-actions, .is-pending .checksum, .is-pending .release-meta { opacity: 0.45; pointer-events: none; }
.release-meta { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 0; }
.release-meta div { padding: 12px 14px; border-radius: 12px; background: rgba(0, 0, 0, 0.22); border: 1px solid var(--line); }
.release-meta dt { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600; }
.release-meta dd { margin: 4px 0 0; font-weight: 650; font-size: 15px; overflow-wrap: anywhere; }
.download-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.download-actions .btn { justify-content: flex-start; height: auto; padding: 14px 18px; }
.checksum { display: flex; flex-direction: column; gap: 8px; }
.checksum-label { font-size: 13px; color: var(--muted); font-weight: 600; }
.checksum-label code { font-weight: 450; color: var(--ink-2); font-size: 12.5px; }
.checksum-row { display: flex; gap: 10px; align-items: stretch; }
.hash { flex: 1; min-width: 0; font-size: 12.5px; padding: 10px 12px; border-radius: 10px; background: rgba(0, 0, 0, 0.3); border: 1px solid var(--line); color: var(--ink-2); overflow-wrap: anywhere; line-height: 1.5; }
.linux-row a { font-family: var(--mono); font-size: 13px; }
.download-help { display: flex; flex-direction: column; gap: 14px; }
.help-block { padding: 22px 24px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); display: flex; flex-direction: column; gap: 10px; }
.help-block h3 { font-size: 16px; display: flex; align-items: center; gap: 10px; }
.help-block h3 .icon { color: var(--mint); }
.help-block p, .help-block li { color: var(--ink-2); font-size: 14.5px; }
.help-block ol { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 6px; }
.help-block pre { margin: 0; padding: 12px 14px; border-radius: 10px; background: rgba(0, 0, 0, 0.35); border: 1px solid var(--line); font-size: 12.5px; color: var(--ink-2); overflow-x: auto; }

/* FAQ */
.faq { display: flex; flex-direction: column; gap: 10px; }
.faq details { border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg); transition: border-color 0.2s; }
.faq details[open] { border-color: var(--line-strong); }
.faq summary { list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 620; font-size: 16.5px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon { color: var(--muted); transition: transform 0.2s; }
.faq details[open] summary .icon { transform: rotate(180deg); color: var(--mint); }
.faq details p { padding: 0 22px 20px; color: var(--ink-2); }

.cta-band { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 44px 48px; border-radius: 24px; border: 1px solid var(--mint-line);
  background: radial-gradient(70% 140% at 100% 0%, rgba(110, 231, 192, 0.16), transparent 60%), var(--surface); }
.cta-band h2 { font-size: clamp(24px, 2.6vw, 32px); margin-bottom: 8px; }
.cta-band p { color: var(--ink-2); }

/* Docs */
.docs-grid { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 56px; align-items: start; }
.docs-toc { position: sticky; top: 92px; display: flex; flex-direction: column; gap: 2px; }
.docs-toc h2 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 8px; }
.docs-toc a { color: var(--ink-2); font-size: 14.5px; padding: 6px 10px; border-radius: 8px; border-left: 2px solid transparent; }
.docs-toc a:hover { background: rgba(255, 255, 255, 0.04); border-left-color: var(--mint); color: var(--ink); }
.docs-body { display: flex; flex-direction: column; gap: 18px; max-width: 760px; }
.docs-body h1 { font-size: clamp(30px, 3.4vw, 42px); }
.docs-body section { padding-top: 22px; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 12px; }
.docs-body h2 { font-size: 22px; }
.docs-body p { color: var(--ink-2); overflow-wrap: anywhere; }
.notfound { min-height: 50vh; }
.notfound .container { display: flex; flex-direction: column; gap: 18px; align-items: flex-start; }
.notfound h1 { font-size: 40px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: #0a0b0e; padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 32px; }
.footer-grid > div { display: flex; flex-direction: column; gap: 9px; }
.footer-grid h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 4px; }
.footer-grid a { color: var(--ink-2); font-size: 14.5px; }
.footer-grid a:hover { color: var(--mint); }
.footer-brand p { color: var(--ink-2); }
.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }

/* Responsive */
@media (max-width: 1080px) {
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step::after { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-shot .window { transform: none; }
  .download-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .header-row { gap: 12px; }
  .nav-menu { order: 3; flex: 0; position: relative; }
  .nav-menu summary { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line-strong); cursor: pointer; color: var(--ink-2); }
  .nav-menu .nav-links { display: none; }
  .nav-menu[open] .nav-links { display: flex; flex-direction: column; position: absolute; right: 0; top: 50px; min-width: 220px; padding: 8px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line-strong); box-shadow: var(--shadow); }
  .header-actions { margin-left: auto; }
  .hide-sm { display: none; }
  .docs-grid { grid-template-columns: 1fr; gap: 28px; }
  .docs-toc { position: static; }
}
@media (max-width: 620px) {
  .container { padding: 0 16px; }
  .section { padding: 64px 0; }
  .hero { padding: 44px 0 24px; }
  .lead { font-size: 16.5px; }
  .feature-grid, .steps { grid-template-columns: 1fr; }
  .download-card { padding: 20px; }
  .download-actions { grid-template-columns: 1fr; }
  .release-meta { grid-template-columns: 1fr 1fr; }
  .release-meta div:last-child { grid-column: 1 / -1; }
  .checksum-row { flex-direction: column; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 28px 22px; }
  .footer-grid { grid-template-columns: 1fr; }
  .header-actions .btn-primary span { display: none; }
  .header-actions .btn-primary { padding: 0 10px; }
  .cta-row .btn { width: 100%; }
  .tabs .tab-list { display: flex; }
  .tab-list button { flex: 1; padding: 10px 8px; font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}