:root {
  --surface: #131318;
  --surface-dim: #131318;
  --surface-bright: #39383e;
  --surface-lowest: #0e0e13;
  --surface-low: #1b1b20;
  --surface-container: #1f1f25;
  --surface-high: #2a292f;
  --surface-highest: #35343a;
  --on-surface: #e4e1e9;
  --on-surface-variant: #b9cacb;
  --outline: #849495;
  --outline-variant: #3b494b;
  --primary: #dbfcff;
  --primary-container: #00f0ff;
  --on-primary: #00363a;
  --on-primary-container: #006970;
  --primary-fixed: #7df4ff;
  --primary-fixed-dim: #00dbe9;
  --secondary: #fface8;
  --secondary-container: #ff24e4;
  --tertiary-container: #e1d2ff;
  --on-tertiary-container: #7213ff;
  --error: #ffb4ab;
  --radius-sm: 0.25rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --shadow-cyan: 0 0 48px color-mix(in srgb, var(--primary-container) 16%, transparent);
  --shadow-magenta: 0 0 48px color-mix(in srgb, var(--secondary-container) 12%, transparent);
  --content-width: 1440px;
  --reading-width: 720px;
}

@font-face {
  font-family: "Sora";
  src: url("../fonts/sora-regular.woff2") format("woff2");
  font-weight: 400 600;
  font-display: swap;
}

@font-face {
  font-family: "Sora";
  src: url("../fonts/sora-bold.woff2") format("woff2");
  font-weight: 700 800;
  font-display: swap;
}

@font-face {
  font-family: "Hanken Grotesk";
  src: url("../fonts/hanken-grotesk-regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Hanken Grotesk";
  src: url("../fonts/hanken-grotesk-semibold.woff2") format("woff2");
  font-weight: 600 700;
  font-display: swap;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-medium.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

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

html {
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--surface);
  color: var(--on-surface);
  font-family: "Hanken Grotesk", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

/* Clip decorative bleed (hero glows) at the viewport edge; on body the value
   would propagate to the viewport and still leave scrollable overflow. */
main { overflow-x: clip; }

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(color-mix(in srgb, var(--outline-variant) 8%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in srgb, var(--outline-variant) 8%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

img { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

:focus-visible {
  outline: 3px solid var(--primary-container);
  outline-offset: 4px;
}

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
  font-family: "Sora", system-ui, sans-serif;
  text-wrap: balance;
}

h1, h2 {
  letter-spacing: -0.035em;
  line-height: 1.08;
}

h1 span, h2 span { color: var(--primary-fixed-dim); }

p { color: var(--on-surface-variant); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}

.section-shell {
  width: min(calc(100% - 128px), var(--content-width));
  margin-inline: auto;
}

.section { padding-block: 112px; }

.section-heading { max-width: 760px; margin-bottom: 48px; }
.centered-heading { margin-inline: auto; text-align: center; }
.section-heading h2, .feature-copy h2, .privacy-copy h2, .open-source-section h2, .final-inner h2, .download-notes h2 {
  margin-bottom: 24px;
  font-size: clamp(2.25rem, 4vw, 3.75rem);
}
.section-heading > p:last-child, .feature-copy > p, .privacy-copy > p, .open-source-section > div > p, .final-inner > p {
  font-size: 1.125rem;
  line-height: 1.6;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid color-mix(in srgb, var(--outline-variant) 72%, transparent);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  backdrop-filter: blur(22px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.site-navigation { display: flex; align-items: center; gap: 30px; }
.site-navigation > a:not(.button) { color: var(--on-surface-variant); font-weight: 600; text-decoration: none; }
.site-navigation > a:not(.button):hover { color: var(--primary); }
.menu-button { display: none; }

.site-footer {
  border-top: 1px solid var(--outline-variant);
  background: var(--surface-lowest);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(320px, 1fr);
  gap: 56px 80px;
  padding-block: 64px 36px;
}

.footer-brand p { max-width: 420px; margin: 20px 0 0; }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(140px, 1fr)); gap: 12px 32px; }
.footer-links a { color: var(--on-surface-variant); text-decoration: none; }
.footer-links a:hover { color: var(--primary-fixed-dim); }
.footer-meta { grid-column: 1 / -1; margin: 0; padding-top: 28px; border-top: 1px solid var(--outline-variant); font: 500 0.75rem/1.5 "JetBrains Mono", monospace; letter-spacing: 0.04em; }

@media (max-width: 900px) {
  .section-shell { width: min(calc(100% - 48px), var(--content-width)); }
  .section { padding-block: 88px; }
  .menu-button { display: inline-flex; }
  .site-navigation {
    position: absolute;
    inset: 72px 0 auto;
    display: none;
    padding: 18px 24px 28px;
    border-bottom: 1px solid var(--outline-variant);
    background: var(--surface-low);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .site-navigation.is-open { display: flex; }
  .site-navigation > a { min-height: 48px; display: flex; align-items: center; padding-inline: 12px; }
  .site-navigation .header-action { justify-content: center; margin-top: 8px; }
}

@media (max-width: 600px) {
  .section-shell { width: calc(100% - 32px); }
  .section { padding-block: 72px; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: 1fr; }
  .footer-meta { grid-column: auto; }
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  border-radius: var(--radius);
  background: var(--primary-container);
  color: var(--on-primary);
  font-weight: 700;
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--primary); font: 700 1rem/1 "Sora", sans-serif; text-decoration: none; }
.brand img { filter: drop-shadow(0 0 12px color-mix(in srgb, var(--primary-container) 36%, transparent)); }
.external-mark { margin-left: 4px; font-size: 0.8em; }

.button-row { display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 700;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}
.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--primary-container); color: var(--on-primary); box-shadow: inset 0 1px var(--primary), var(--shadow-cyan); }
.button-primary:hover { background: var(--primary-fixed); box-shadow: inset 0 1px var(--primary), 0 0 58px color-mix(in srgb, var(--primary-container) 24%, transparent); }
.button-secondary { border-color: var(--outline-variant); background: color-mix(in srgb, var(--surface-container) 84%, transparent); color: var(--on-surface); }
.button-secondary:hover { border-color: var(--outline); background: var(--surface-high); }
.header-action { min-height: 42px; padding: 8px 18px; }

.eyebrow, .card-detail, .platform-spec, .status-chip, .availability-note {
  font: 500 0.75rem/1.4 "JetBrains Mono", monospace;
  letter-spacing: 0.1em;
}
.eyebrow { margin-bottom: 18px; color: var(--primary-fixed-dim); }
.text-link { color: var(--primary-fixed); font-weight: 700; text-decoration-color: color-mix(in srgb, var(--primary-container) 44%, transparent); text-underline-offset: 5px; }
.text-link:hover { color: var(--primary); text-decoration-color: currentColor; }
.centered-action { margin: 32px 0 0; text-align: center; }

.menu-button {
  min-width: 52px;
  min-height: 44px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  background: var(--surface-container);
  color: var(--on-surface);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.menu-button-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.menu-lines, .menu-lines::before, .menu-lines::after { width: 20px; height: 2px; display: block; border-radius: 2px; background: currentColor; content: ""; transition: transform 160ms ease; }
.menu-lines { position: relative; }
.menu-lines::before { position: absolute; top: -6px; }
.menu-lines::after { position: absolute; top: 6px; }
.menu-button[aria-expanded="true"] .menu-lines { background: transparent; }
.menu-button[aria-expanded="true"] .menu-lines::before { top: 0; transform: rotate(45deg); }
.menu-button[aria-expanded="true"] .menu-lines::after { top: 0; transform: rotate(-45deg); }

.app-shot {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-xl);
  background: var(--surface-lowest);
  box-shadow: 0 32px 90px color-mix(in srgb, var(--surface-lowest) 70%, transparent), var(--shadow-cyan);
}
.app-shot img { width: 100%; height: auto; }
.window-bar { height: 38px; display: flex; align-items: center; gap: 7px; padding-inline: 14px; border-bottom: 1px solid var(--outline-variant); background: var(--surface-low); }
.window-bar span { width: 8px; height: 8px; border-radius: 50%; background: var(--outline); }
.window-bar span:nth-child(2) { background: var(--secondary); }
.window-bar span:nth-child(3) { background: var(--primary-container); }
.window-bar b { margin-left: auto; color: var(--outline); font: 500 0.625rem/1 "JetBrains Mono", monospace; letter-spacing: 0.12em; }

.status-dot { width: 8px; height: 8px; flex: 0 0 auto; border-radius: 50%; background: var(--secondary-container); box-shadow: 0 0 12px var(--secondary-container); }
.status-chip { padding: 7px 10px; border: 1px solid var(--outline-variant); border-radius: 999px; }
.status-progress { border-color: var(--primary-container); color: var(--primary-fixed); }
.status-pending { border-color: var(--secondary); color: var(--secondary); }
.status-available { border-color: var(--primary-container); background: color-mix(in srgb, var(--primary-container) 10%, transparent); color: var(--primary-fixed); }

@media (forced-colors: active) {
  .button, .app-shot, .workflow-card, .platform-card { forced-color-adjust: auto; }
  .hero-glow { display: none; }
}

.hero { position: relative; padding-top: 112px; text-align: center; }
.hero-copy { position: relative; z-index: 1; max-width: 920px; margin-inline: auto; }
.hero h1, .download-hero h1 { margin-bottom: 28px; font-size: clamp(3.25rem, 7vw, 6.6rem); }
.hero-summary { max-width: 760px; margin: 0 auto 32px; font-size: clamp(1.125rem, 1.7vw, 1.35rem); line-height: 1.55; }
.hero-actions { justify-content: center; }
.release-line { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 9px; margin-top: 22px; color: var(--on-surface-variant); font: 500 0.75rem/1.5 "JetBrains Mono", monospace; letter-spacing: 0.04em; }
.hero-shot-frame { position: relative; z-index: 1; max-width: 1240px; margin: 72px auto -64px; }
.app-shot-hero { position: relative; }
.hero-stamp { position: absolute; z-index: 2; top: -58px; right: -34px; width: 164px; height: 164px; display: grid; place-content: center; gap: 6px; padding: 22px; border-radius: 50%; background: var(--primary-container); color: var(--on-primary); text-decoration: none; text-align: center; transform: rotate(-9deg); box-shadow: 0 0 0 4px var(--surface-lowest), 0 0 40px color-mix(in srgb, var(--primary-container) 45%, transparent), 0 12px 30px color-mix(in srgb, var(--surface-lowest) 60%, transparent); transition: transform 240ms cubic-bezier(0.34, 1.56, 0.64, 1); }
.hero-stamp::before { content: ""; position: absolute; inset: 7px; border: 2px dashed color-mix(in srgb, var(--on-primary) 40%, transparent); border-radius: 50%; pointer-events: none; }
.hero-stamp:hover, .hero-stamp:focus-visible { transform: rotate(4deg) scale(1.08); }
.hero-stamp-face { width: 44px; height: auto; margin: 0 auto -2px; fill: currentColor; }
.hero-stamp-title { font: 800 0.95rem/1.05 "Sora", sans-serif; letter-spacing: 0.04em; text-transform: uppercase; }
.hero-stamp-detail { max-width: 116px; margin: 0 auto; color: color-mix(in srgb, var(--on-primary) 72%, var(--primary-container)); font: 600 0.55rem/1.35 "JetBrains Mono", monospace; letter-spacing: 0.06em; text-transform: uppercase; }
.hero-glow { position: absolute; z-index: 0; border-radius: 50%; filter: blur(80px); pointer-events: none; }
.hero-glow-cyan { width: 620px; height: 360px; left: 50%; top: 110px; background: color-mix(in srgb, var(--primary-container) 16%, transparent); transform: translateX(-72%); }
.hero-glow-magenta { width: 480px; height: 300px; right: -5%; top: 320px; background: color-mix(in srgb, var(--secondary-container) 11%, transparent); }

.trust-strip { min-height: 132px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; gap: 1px; padding: 64px max(32px, calc((100vw - var(--content-width)) / 2)); background: var(--surface-lowest); color: var(--on-surface); text-decoration: none; }
.trust-strip span { min-height: 56px; display: flex; align-items: center; justify-content: center; gap: 12px; padding-inline: 20px; border-right: 1px solid var(--outline-variant); text-align: center; }
.trust-strip span:last-child { border-right: 0; }
.trust-strip b { color: var(--primary-fixed-dim); font-size: 1.25rem; }

.workflow-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 0; padding: 0; list-style: none; }
.workflow-card { min-height: 300px; display: flex; flex-direction: column; padding: 32px; border: 1px solid var(--outline-variant); border-radius: var(--radius-xl); background: linear-gradient(145deg, color-mix(in srgb, var(--surface-high) 68%, transparent), var(--surface-low)); }
.workflow-card.featured-card { border-color: color-mix(in srgb, var(--primary-container) 60%, var(--outline-variant)); box-shadow: var(--shadow-cyan); }
.step-number { color: var(--primary-fixed-dim); font: 500 0.8rem/1 "JetBrains Mono", monospace; }
.workflow-card h3 { margin: auto 0 14px; font-size: 1.45rem; }
.workflow-card p { margin-bottom: 24px; }
.card-detail { color: var(--outline); }

.feature-section { display: grid; grid-template-columns: minmax(320px, 0.8fr) minmax(520px, 1.3fr); align-items: center; gap: clamp(48px, 7vw, 108px); }
.feature-list { margin: 36px 0; padding: 0; list-style: none; }
.feature-list li { display: grid; gap: 4px; padding: 16px 0 16px 30px; border-bottom: 1px solid var(--outline-variant); }
.feature-list li::before { position: absolute; margin: 3px 0 0 -30px; color: var(--primary-container); content: "◆"; font-size: 0.7rem; }
.feature-list b { color: var(--on-surface); }
.feature-list span { color: var(--on-surface-variant); }

.privacy-section { border-block: 1px solid var(--outline-variant); background: linear-gradient(120deg, var(--surface-lowest), var(--surface-low)); }
.privacy-inner { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(48px, 8vw, 140px); }
.privacy-facts { margin: 0; padding: 0; list-style: none; }
.privacy-facts li { display: grid; grid-template-columns: 52px 1fr; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--outline-variant); }
.privacy-facts > li > span { color: var(--primary-fixed-dim); font: 500 0.8rem/1.5 "JetBrains Mono", monospace; }
.privacy-facts b { font-size: 1.1rem; }
.privacy-facts p { margin: 4px 0 0; }

.open-source-section { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(48px, 9vw, 150px); }
.source-actions { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.source-actions a { position: relative; min-height: 150px; display: flex; flex-direction: column; padding: 24px; border: 1px solid var(--outline-variant); border-radius: var(--radius-lg); background: var(--surface-low); text-decoration: none; }
.source-actions a:hover { border-color: var(--primary-container); background: var(--surface-container); }
.source-actions b { margin-bottom: 8px; font-family: "Sora", sans-serif; }
.source-actions span { color: var(--on-surface-variant); }
.source-actions i { position: absolute; right: 22px; top: 20px; color: var(--primary-fixed-dim); font-style: normal; }

.final-section { position: relative; overflow: hidden; padding-block: 128px; border-top: 1px solid var(--outline-variant); background: radial-gradient(circle at 50% 100%, color-mix(in srgb, var(--on-tertiary-container) 22%, transparent), transparent 45%), var(--surface-lowest); text-align: center; }
.final-inner { max-width: 820px; }
.final-inner .button-row { justify-content: center; margin-top: 30px; }

.download-hero { padding-block: 112px 72px; }
.download-hero > p { max-width: 720px; font-size: 1.2rem; }
.launch-status { max-width: 560px; display: flex; align-items: center; gap: 16px; margin-top: 32px; padding: 18px 20px; border: 1px solid var(--outline-variant); border-radius: var(--radius-lg); background: var(--surface-low); }
.launch-status div { display: grid; }
.launch-status b { color: var(--on-surface); }
.launch-status span { color: var(--on-surface-variant); }
.recommendation-panel { max-width: 860px; display: flex; align-items: center; justify-content: space-between; gap: 32px; margin-top: 24px; padding: 24px; border: 1px solid color-mix(in srgb, var(--primary-container) 54%, var(--outline-variant)); border-radius: var(--radius-xl); background: linear-gradient(115deg, color-mix(in srgb, var(--primary-container) 9%, var(--surface-low)), var(--surface-low)); box-shadow: var(--shadow-cyan); }
.recommendation-panel .eyebrow { margin-bottom: 8px; }
.recommendation-panel h2 { margin: 0 0 6px; font-size: 1.35rem; letter-spacing: -0.02em; }
.recommendation-panel p:last-child { margin-bottom: 0; }
.recommendation-panel .button { flex: 0 0 auto; }
.noscript-note { max-width: 760px; margin-top: 18px; color: var(--error); }
.platform-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.platform-card { min-height: 350px; display: flex; flex-direction: column; padding: 30px; border: 1px solid var(--outline-variant); border-radius: var(--radius-xl); background: var(--surface-low); }
.platform-card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.platform-icon { color: var(--primary-fixed-dim); font-size: 2rem; }
.platform-card h3 { margin: 56px 0 6px; font-size: 1.75rem; }
.platform-spec { color: var(--primary-fixed-dim); }
.availability-note { margin-top: auto; padding-top: 24px; color: var(--on-surface); }
.platform-action { margin-top: 22px; }
.platform-action[hidden] { display: none; }
.download-notes { border-top: 1px solid var(--outline-variant); }
.notes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 48px 0; }
.notes-grid article { padding-top: 20px; border-top: 1px solid var(--outline-variant); }
.notes-grid article > span { color: var(--primary-fixed-dim); font: 500 0.75rem/1 "JetBrains Mono", monospace; }
.notes-grid h3 { margin: 36px 0 10px; font-size: 1.2rem; }
.release-evidence { display: grid; grid-template-columns: minmax(0, 1fr) minmax(18rem, 1fr); gap: 48px; align-items: end; border-top: 1px solid var(--outline-variant); }
.release-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 0; border: 1px solid var(--outline-variant); background: var(--outline-variant); }
.release-facts div { padding: 20px; background: var(--surface-low); }
.release-facts dt { margin-bottom: 6px; color: var(--on-surface-variant); font: 500 0.7rem/1.2 "JetBrains Mono", monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.release-facts dd { margin: 0; color: var(--on-surface); font-weight: 600; }
.release-links { grid-column: 1 / -1; margin-top: 0; }
.release-links [hidden] { display: none; }
.error-page { min-height: 68vh; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }
.error-page h1 { max-width: 800px; margin-bottom: 24px; font-size: clamp(3rem, 7vw, 6rem); }
.error-page p:not(.eyebrow) { font-size: 1.2rem; }

.platform-guides-section { border-top: 1px solid var(--outline-variant); background: linear-gradient(145deg, var(--surface-lowest), var(--surface)); }
.guide-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.guide-card { min-height: 300px; display: flex; flex-direction: column; padding: 30px; border: 1px solid var(--outline-variant); border-radius: var(--radius-xl); background: linear-gradient(145deg, color-mix(in srgb, var(--surface-high) 60%, transparent), var(--surface-low)); }
.guide-card:hover { border-color: color-mix(in srgb, var(--primary-container) 58%, var(--outline-variant)); }
.guide-card-icon { margin-bottom: 40px; color: var(--primary-fixed-dim); font-size: 2rem; }
.guide-card h3 { margin: 12px 0; font-size: 1.45rem; }
.guide-card .text-link { margin-top: auto; padding-top: 22px; }
.platform-guide-link { margin-top: 18px; font-size: 0.92rem; }

.updates-section { border-block: 1px solid var(--outline-variant); background: var(--surface-lowest); }
.updates-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(420px, 0.9fr); align-items: center; gap: clamp(48px, 8vw, 120px); }
.updates-copy h2 { margin-bottom: 36px; font-size: clamp(2.4rem, 4.5vw, 4.6rem); }
.updates-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.updates-list article { padding-top: 20px; border-top: 1px solid var(--outline-variant); }
.updates-list h3 { margin: 0 0 8px; font-size: 1.05rem; }
.updates-list p { margin-bottom: 10px; }
.updates-list .text-link { font-size: 0.9rem; }
.updates-polish { margin: 28px 0 0; color: var(--outline); font-size: 0.92rem; }
.updates-shot { align-self: center; }

.guide-hero { padding-block: 72px 64px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 56px; color: var(--outline); font: 500 0.75rem/1.4 "JetBrains Mono", monospace; letter-spacing: 0.06em; }
.breadcrumb a { color: var(--on-surface-variant); text-underline-offset: 4px; }
.guide-hero-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.65fr); align-items: end; gap: clamp(48px, 8vw, 130px); }
.guide-hero h1 { max-width: 920px; margin-bottom: 28px; font-size: clamp(3rem, 6.2vw, 6rem); }
.guide-summary { max-width: 760px; margin-bottom: 32px; font-size: clamp(1.125rem, 1.7vw, 1.35rem); line-height: 1.6; }
.guide-facts { margin: 0; border-block: 1px solid var(--outline-variant); }
.guide-facts div { display: grid; grid-template-columns: 96px 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--outline-variant); }
.guide-facts div:last-child { border-bottom: 0; }
.guide-facts dt { color: var(--outline); font: 500 0.7rem/1.5 "JetBrains Mono", monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.guide-facts dd { margin: 0; color: var(--on-surface); font-weight: 600; }
.guide-visual { padding-bottom: 72px; }
.guide-visual .app-shot { max-width: 1240px; margin-inline: auto; }

.guide-body { display: grid; grid-template-columns: minmax(0, var(--reading-width)) minmax(220px, 280px); justify-content: center; align-items: start; gap: clamp(56px, 9vw, 140px); padding-bottom: 112px; }
.guide-article > section { padding-block: 64px; border-top: 1px solid var(--outline-variant); scroll-margin-top: 80px; }
.guide-article > section:first-child { border-top: 0; }
.guide-article h2 { margin-bottom: 24px; font-size: clamp(2rem, 4vw, 3.35rem); }
.guide-article h3 { font-size: 1.15rem; }
.guide-article p, .guide-article li { font-size: 1.08rem; line-height: 1.7; }
.guide-article code { padding: 2px 6px; border: 1px solid var(--outline-variant); border-radius: var(--radius-sm); background: var(--surface-lowest); color: var(--primary-fixed); font: 500 0.85em/1.5 "JetBrains Mono", monospace; }
.check-list { display: grid; gap: 14px; margin: 28px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 30px; color: var(--on-surface-variant); }
.check-list li::before { position: absolute; left: 0; color: var(--primary-fixed-dim); content: "◆"; font-size: 0.7rem; }
.numbered-steps { display: grid; gap: 0; margin: 32px 0; padding: 0; list-style: none; border-block: 1px solid var(--outline-variant); }
.numbered-steps li { display: grid; grid-template-columns: 54px 1fr; gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--outline-variant); }
.numbered-steps li:last-child { border-bottom: 0; }
.numbered-steps li > span, .guide-step-grid article > span { color: var(--primary-fixed-dim); font: 500 0.76rem/1.5 "JetBrains Mono", monospace; }
.numbered-steps h3 { margin: 0 0 6px; }
.numbered-steps p { margin-bottom: 0; }
.guide-step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 32px 0; }
.guide-step-grid article { min-height: 250px; display: flex; flex-direction: column; padding: 22px; border: 1px solid var(--outline-variant); border-radius: var(--radius-lg); background: var(--surface-low); }
.guide-step-grid h3 { margin: auto 0 10px; }
.guide-step-grid p { margin-bottom: 0; font-size: 0.98rem; line-height: 1.55; }
.notice-panel { margin-top: 28px; padding: 24px; border: 1px solid color-mix(in srgb, var(--primary-container) 48%, var(--outline-variant)); border-radius: var(--radius-lg); background: color-mix(in srgb, var(--primary-container) 7%, var(--surface-low)); }
.notice-panel strong { color: var(--on-surface); }
.notice-panel p { margin: 8px 0 0; font-size: 1rem; }
.guide-sidebar { position: sticky; top: 104px; padding: 26px; border: 1px solid var(--outline-variant); border-radius: var(--radius-xl); background: color-mix(in srgb, var(--surface-low) 90%, transparent); backdrop-filter: blur(18px); }
.guide-sidebar nav { display: grid; margin-block: 18px 28px; }
.guide-sidebar nav a { padding: 9px 0; border-bottom: 1px solid var(--outline-variant); color: var(--on-surface-variant); text-decoration: none; }
.guide-sidebar nav a:hover { color: var(--primary-fixed); }
.sidebar-callout { padding-top: 24px; border-top: 1px solid var(--outline-variant); }
.sidebar-callout strong { color: var(--on-surface); }
.sidebar-callout p { margin: 8px 0 18px; }
.sidebar-callout .button { width: 100%; }
.faq-list { border-top: 1px solid var(--outline-variant); }
.faq-list details { border-bottom: 1px solid var(--outline-variant); }
.faq-list summary { padding: 22px 36px 22px 0; color: var(--on-surface); font: 600 1.08rem/1.5 "Sora", sans-serif; cursor: pointer; }
.faq-list details p { margin-bottom: 24px; font-size: 1rem; }
.related-guides { border-top: 1px solid var(--outline-variant); background: var(--surface-lowest); }
.related-guides h2 { margin-bottom: 32px; font-size: clamp(2rem, 4vw, 3.5rem); }
.related-guide-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.related-guide-links a { display: grid; gap: 8px; padding: 26px; border: 1px solid var(--outline-variant); border-radius: var(--radius-lg); background: var(--surface-low); text-decoration: none; }
.related-guide-links a:hover { border-color: var(--primary-container); }
.related-guide-links b { color: var(--on-surface); font-family: "Sora", sans-serif; }
.related-guide-links span { color: var(--on-surface-variant); }

.pro-hero { padding-bottom: 84px; }
.pro-visual { padding-bottom: 0; }
.pro-proof-strip { border-block: 1px solid var(--outline-variant); background: var(--surface-lowest); }
.pro-proof-strip > div { display: grid; grid-template-columns: repeat(4, 1fr); }
.pro-proof-strip span { display: grid; gap: 4px; padding: 28px 24px; border-right: 1px solid var(--outline-variant); color: var(--on-surface-variant); text-align: center; }
.pro-proof-strip span:last-child { border-right: 0; }
.pro-proof-strip b { color: var(--primary-fixed-dim); font: 700 1.05rem/1.3 "Sora", sans-serif; }
.pro-section .section-heading > p:last-child { font-size: 1.15rem; line-height: 1.65; }
.pro-section-alt { border-block: 1px solid var(--outline-variant); background: linear-gradient(145deg, var(--surface-lowest), var(--surface-low)); }
.pro-pipeline { display: grid; grid-template-columns: repeat(5, 1fr); margin: 52px 0 0; padding: 0; border-block: 1px solid var(--outline-variant); list-style: none; }
.pro-pipeline li { min-height: 270px; display: flex; flex-direction: column; padding: 26px 22px; border-right: 1px solid var(--outline-variant); }
.pro-pipeline li:last-child { border-right: 0; }
.pro-pipeline li > span, .pro-card-index { color: var(--primary-fixed-dim); font: 500 0.72rem/1.4 "JetBrains Mono", monospace; letter-spacing: 0.08em; }
.pro-pipeline b { margin-top: auto; color: var(--on-surface); font: 700 1.05rem/1.4 "Sora", sans-serif; }
.pro-pipeline p { margin: 10px 0 0; font-size: 0.96rem; }
.pro-card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.pro-card { min-height: 290px; display: flex; flex-direction: column; padding: 32px; border: 1px solid var(--outline-variant); border-radius: var(--radius-xl); background: color-mix(in srgb, var(--surface-high) 62%, transparent); }
.pro-card h3 { max-width: 480px; margin: auto 0 14px; font-size: clamp(1.45rem, 2.4vw, 2.15rem); }
.pro-card p { max-width: 600px; margin-bottom: 0; font-size: 1.05rem; }
.pro-scope-section { display: grid; grid-template-columns: minmax(300px, 0.75fr) minmax(520px, 1.25fr); align-items: center; gap: clamp(48px, 7vw, 110px); }
.pro-scope-copy h2, .pro-raw-grid h2, .pro-boundary-grid h2 { margin-bottom: 24px; font-size: clamp(2.25rem, 4vw, 3.75rem); }
.pro-scope-copy > p:not(.eyebrow), .pro-raw-grid > div > p { font-size: 1.1rem; line-height: 1.65; }
.pro-chip-list { display: flex; flex-wrap: wrap; gap: 9px; margin: 28px 0 0; padding: 0; list-style: none; }
.pro-chip-list li { padding: 8px 11px; border: 1px solid var(--outline-variant); border-radius: 999px; background: var(--surface-low); color: var(--on-surface-variant); font: 500 0.72rem/1.3 "JetBrains Mono", monospace; }
.pro-raw-grid { display: grid; grid-template-columns: minmax(300px, 0.8fr) minmax(420px, 1fr); gap: clamp(52px, 9vw, 150px); }
.pro-feature-list { margin: 0; padding: 0; list-style: none; }
.pro-feature-list li { display: grid; gap: 5px; padding: 19px 0; border-bottom: 1px solid var(--outline-variant); }
.pro-feature-list li:first-child { padding-top: 0; }
.pro-feature-list b { color: var(--on-surface); font-size: 1.05rem; }
.pro-feature-list span { color: var(--on-surface-variant); }
.pro-delivery-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--outline-variant); }
.pro-delivery-grid article { display: grid; gap: 10px; padding: 30px 24px; border-right: 1px solid var(--outline-variant); }
.pro-delivery-grid article:last-child { border-right: 0; }
.pro-delivery-grid b { color: var(--primary-fixed-dim); font-family: "Sora", sans-serif; }
.pro-delivery-grid span { color: var(--on-surface-variant); }
.pro-boundary-section { padding-block: 88px; border-top: 1px solid var(--outline-variant); background: var(--surface-lowest); }
.pro-boundary-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(48px, 9vw, 150px); align-items: start; }
.pro-boundary-grid p:not(.eyebrow) { margin-bottom: 24px; font-size: 1.1rem; line-height: 1.65; }

@media (max-width: 980px) {
  .trust-strip { grid-template-columns: repeat(2, 1fr); padding-inline: 24px; }
  .trust-strip span:nth-child(2) { border-right: 0; }
  .workflow-grid, .platform-grid { grid-template-columns: 1fr; }
  .workflow-card { min-height: 240px; }
  .feature-section, .privacy-inner, .open-source-section, .updates-grid { grid-template-columns: 1fr; }
  .feature-shot { order: -1; }
  .open-source-section > div:first-child { max-width: 700px; }
  .updates-shot { order: -1; }
  .guide-card-grid, .guide-hero-grid, .guide-body, .pro-scope-section, .pro-raw-grid, .pro-boundary-grid { grid-template-columns: 1fr; }
  .guide-card { min-height: 250px; }
  .guide-facts { max-width: 680px; }
  .guide-sidebar { position: static; }
  .guide-sidebar nav { grid-template-columns: repeat(2, 1fr); column-gap: 24px; }
  .pro-pipeline { grid-template-columns: 1fr; }
  .pro-pipeline li { min-height: 190px; border-right: 0; border-bottom: 1px solid var(--outline-variant); }
  .pro-pipeline li:last-child { border-bottom: 0; }
  .pro-scope-shot { order: -1; }
  .pro-delivery-grid { grid-template-columns: repeat(2, 1fr); }
  .pro-delivery-grid article:nth-child(2) { border-right: 0; }
  .pro-delivery-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--outline-variant); }
}

@media (max-width: 650px) {
  .hero { padding-top: 80px; }
  .hero h1, .download-hero h1 { font-size: clamp(2.9rem, 15vw, 4.7rem); }
  .hero-shot-frame { margin-top: 48px; margin-bottom: -40px; }
  .app-shot-hero { border-radius: var(--radius-lg); }
  .hero-stamp { top: -46px; right: 2px; width: 128px; height: 128px; padding: 14px; }
  .hero-stamp-face { width: 34px; }
  .hero-stamp-title { font-size: 0.78rem; }
  .hero-stamp-detail { display: none; }
  .window-bar { height: 30px; }
  .trust-strip { grid-template-columns: 1fr; padding-block: 50px; }
  .trust-strip span, .trust-strip span:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--outline-variant); }
  .trust-strip span:last-child { border-bottom: 0; }
  .source-actions, .notes-grid, .release-evidence, .release-facts, .updates-list { grid-template-columns: 1fr; }
  .final-section { padding-block: 96px; }
  .download-hero { padding-block: 80px 48px; }
  .recommendation-panel { align-items: stretch; flex-direction: column; }
  .guide-hero { padding-block: 52px 48px; }
  .breadcrumb { margin-bottom: 40px; }
  .guide-hero h1 { font-size: clamp(2.75rem, 14vw, 4.5rem); }
  .guide-visual { padding-bottom: 48px; }
  .guide-body { padding-bottom: 72px; }
  .guide-article > section { padding-block: 50px; }
  .guide-step-grid, .related-guide-links { grid-template-columns: 1fr; }
  .guide-step-grid article { min-height: 210px; }
  .guide-sidebar nav { grid-template-columns: 1fr; }
  .pro-proof-strip > div, .pro-card-grid, .pro-delivery-grid { grid-template-columns: 1fr; }
  .pro-proof-strip span, .pro-delivery-grid article, .pro-delivery-grid article:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--outline-variant); }
  .pro-proof-strip span:last-child, .pro-delivery-grid article:last-child { border-bottom: 0; }
}