:root {
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: #eef0f4;
  background: #101114;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0;
  --bg: #101114;
  --surface: #181a1e;
  --surface-2: #202329;
  --border: #30343b;
  --text: #eef0f4;
  --muted: #979da7;
  --faint: #69717d;
  --blue: #4f8dff;
  --blue-dark: #2866d7;
  --coral: #f0785d;
  --green: #40c99a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; overflow-x: hidden; background: var(--bg); }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(28px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(255,255,255,.09);
  background: rgba(16,17,20,.88);
  backdrop-filter: blur(16px);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid #343a44; border-radius: 7px; background: #191e25; }
.brand-mark img { width: 34px; height: 34px; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 16px; line-height: 19px; }
.brand small { margin-top: 2px; color: var(--faint); font-size: 8px; line-height: 10px; }
nav { display: flex; align-items: center; gap: 28px; }
nav a { color: #b5bac3; font-size: 12px; text-decoration: none; transition: color 160ms ease; }
nav a:hover { color: #fff; }
nav .nav-download { height: 34px; display: inline-flex; align-items: center; padding: 0 15px; border: 1px solid #4279d8; border-radius: 5px; background: #265ebd; color: white; }

main { display: block; }
.hero {
  position: relative;
  height: min(780px, calc(100svh - 78px));
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid #282b31;
  background: #0d0e10;
}
.hero-media { position: absolute; inset: 70px 0 0 28%; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: left top; filter: saturate(.95) contrast(1.04); }
.hero-shade { position: absolute; inset: 0; background: rgba(10,11,13,.62); }
.hero-content { position: relative; z-index: 2; width: min(1180px, calc(100% - 56px)); margin: 58px auto 0; }
.eyebrow { display: flex; align-items: center; gap: 9px; color: #aeb4bd; font-size: 11px; font-weight: 650; }
.eyebrow span { width: 22px; height: 2px; background: var(--green); }
.hero h1 { margin: 20px 0 18px; max-width: 620px; font-size: 76px; line-height: 1; font-weight: 760; }
.hero-content > p { max-width: 560px; margin: 0; color: #b4bac4; font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 32px; }
.primary-button, .download-button { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.primary-button { height: 46px; gap: 34px; padding: 0 18px; border-radius: 5px; background: var(--blue); color: white; font-size: 13px; font-weight: 700; box-shadow: 0 10px 28px rgba(42,105,218,.28); transition: background 160ms ease, transform 160ms ease; }
.primary-button:hover { background: #669cff; transform: translateY(-1px); }
.text-link { color: #c4c9d1; font-size: 12px; text-decoration: none; }
.text-link span { margin-left: 7px; color: var(--green); }
.hero-trust { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 42px; color: #8d949f; font-size: 10px; }
.hero-trust span { display: flex; align-items: center; gap: 7px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; }
.status-dot.green { background: var(--green); box-shadow: 0 0 0 4px rgba(64,201,154,.1); }
.status-dot.blue { background: var(--blue); box-shadow: 0 0 0 4px rgba(79,141,255,.1); }
.status-dot.coral { background: var(--coral); box-shadow: 0 0 0 4px rgba(240,120,93,.1); }

.section-band { border-bottom: 1px solid #292c32; }
.section-inner { width: min(1180px, calc(100% - 56px)); margin: 0 auto; }
.download-section { padding: 92px 0 86px; background: #141518; }
.section-heading { display: grid; grid-template-columns: minmax(300px, .9fr) minmax(320px, .65fr); align-items: end; justify-content: space-between; gap: 60px; margin-bottom: 42px; }
.section-kicker { color: var(--green); font-size: 9px; font-weight: 800; letter-spacing: 0; }
.section-heading h2 { max-width: 620px; margin: 9px 0 0; font-size: 35px; line-height: 1.25; }
.section-heading > p, .section-heading.vertical p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

.platform-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.platform-card { min-height: 300px; display: flex; flex-direction: column; padding: 22px; border: 1px solid var(--border); border-radius: 7px; background: var(--surface); transition: border-color 180ms ease, transform 180ms ease, background 180ms ease; }
.platform-card:hover { border-color: #46505d; background: #1b1e23; transform: translateY(-3px); }
.platform-top { display: flex; align-items: center; justify-content: space-between; }
.platform-index { color: #5f6671; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.platform-badge { color: #9cbcff; font-size: 10px; font-weight: 700; }
.platform-badge.windows { color: #66d8a8; }
.platform-card h3 { margin: 55px 0 8px; font-size: 22px; }
.platform-card > p { margin: 0; color: var(--muted); font-size: 11px; }
.release-meta { min-height: 18px; display: flex; justify-content: space-between; gap: 8px; margin-top: auto; padding-top: 36px; color: #777f8b; font-size: 10px; }
.download-button { height: 42px; gap: 22px; margin-top: 12px; border: 1px solid #3d73d1; border-radius: 5px; background: #265ebd; color: white; font-size: 11px; font-weight: 700; transition: background 160ms ease, border-color 160ms ease; }
.download-button:hover { border-color: #6798ee; background: #3471d8; }
.download-button.is-loading, .download-button.is-unavailable { border-color: #343840; background: #24272d; color: #777f8b; cursor: default; pointer-events: none; }
.chip-help { display: flex; align-items: baseline; gap: 18px; margin-top: 18px; color: var(--muted); font-size: 10px; }
.chip-help strong { color: #ccd0d6; }

.workflow-section { padding: 100px 0; background: #101114; }
.workflow-layout { display: grid; grid-template-columns: minmax(300px, .75fr) minmax(440px, 1.15fr); gap: 96px; }
.section-heading.vertical { display: block; margin: 0; }
.section-heading.vertical p { max-width: 420px; margin-top: 22px; }
.workflow-steps { margin: 0; padding: 0; list-style: none; }
.workflow-steps li { min-height: 112px; display: grid; grid-template-columns: 48px 1fr; gap: 22px; padding: 21px 0; border-top: 1px solid #30333a; }
.workflow-steps li:last-child { border-bottom: 1px solid #30333a; }
.workflow-steps > li > span { color: var(--blue); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.workflow-steps strong { font-size: 16px; }
.workflow-steps p { margin: 8px 0 0; color: var(--muted); font-size: 11px; line-height: 1.7; }

.tools-section { padding: 96px 0; background: #181a1e; }
.tool-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.tool-list article { min-height: 250px; padding: 31px 28px; border-right: 1px solid var(--border); }
.tool-list article:first-child { padding-left: 0; }
.tool-list article:last-child { padding-right: 0; border-right: 0; }
.tool-list article > span { color: var(--coral); font-size: 8px; font-weight: 800; letter-spacing: 0; }
.tool-list h3 { margin: 66px 0 12px; font-size: 18px; }
.tool-list p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.75; }

.privacy-section { padding: 68px 0; background: #0e1714; }
.privacy-layout { display: grid; grid-template-columns: 120px minmax(320px, 1fr) minmax(320px, .9fr); align-items: center; gap: 45px; }
.privacy-signal { height: 78px; display: flex; align-items: end; gap: 9px; }
.privacy-signal span { width: 14px; background: var(--green); }
.privacy-signal span:nth-child(1) { height: 38%; opacity: .45; }
.privacy-signal span:nth-child(2) { height: 68%; opacity: .7; }
.privacy-signal span:nth-child(3) { height: 100%; }
.privacy-layout h2 { max-width: 560px; margin: 10px 0 0; font-size: 29px; line-height: 1.35; }
.privacy-layout > p { margin: 0; color: #9aada6; font-size: 12px; line-height: 1.9; }

footer { min-height: 150px; width: min(1180px, calc(100% - 56px)); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; color: var(--faint); }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand img { width: 32px; height: 32px; }
.footer-brand strong, .footer-brand small { display: block; }
.footer-brand strong { color: #cbd0d7; font-size: 13px; }
.footer-brand small { margin-top: 4px; font-size: 9px; }
footer > p { font-size: 9px; }

@media (max-width: 900px) {
  .site-header { padding-inline: 24px; }
  .hero-media { left: 20%; }
  .hero-shade { background: rgba(10,11,13,.68); }
  .platform-grid { grid-template-columns: 1fr; }
  .platform-card { min-height: 210px; }
  .platform-card h3 { margin-top: 32px; }
  .section-heading { grid-template-columns: 1fr; gap: 18px; }
  .workflow-layout { grid-template-columns: 1fr; gap: 52px; }
  .privacy-layout { grid-template-columns: 70px 1fr; }
  .privacy-layout > p { grid-column: 2; }
}

@media (max-width: 620px) {
  .site-header { height: 62px; padding: 0 18px; }
  .brand-mark { width: 34px; height: 34px; }
  .brand-mark img { width: 30px; height: 30px; }
  .brand strong { font-size: 14px; }
  nav { gap: 7px; }
  nav > a:not(.nav-download) { display: none; }
  nav .nav-download { height: 32px; padding-inline: 13px; }
  .section-inner, .hero-content, footer { width: min(100% - 36px, 1180px); }
  .hero { height: min(650px, calc(100svh - 78px)); min-height: 500px; align-items: flex-end; }
  .hero-media { inset: 62px -160px 0 -40px; opacity: .62; }
  .hero-media img { object-position: 20% top; }
  .hero-shade { background: rgba(10,11,13,.72); }
  .hero-content { margin: 0 auto; padding-bottom: 42px; }
  .hero h1 { margin: 15px 0 13px; font-size: 48px; }
  .hero-content > p { font-size: 13px; line-height: 1.75; }
  .hero-actions { gap: 16px; margin-top: 23px; }
  .primary-button { height: 42px; gap: 16px; padding-inline: 15px; }
  .hero-trust { gap: 10px 15px; margin-top: 25px; }
  .download-section, .workflow-section, .tools-section { padding: 66px 0; }
  .section-heading { margin-bottom: 28px; }
  .section-heading h2 { font-size: 27px; }
  .platform-card { min-height: 205px; padding: 19px; }
  .chip-help { align-items: flex-start; flex-direction: column; gap: 5px; line-height: 1.65; }
  .workflow-layout { gap: 34px; }
  .workflow-steps li { grid-template-columns: 38px 1fr; gap: 12px; }
  .tool-list { grid-template-columns: 1fr; }
  .tool-list article, .tool-list article:first-child, .tool-list article:last-child { min-height: 180px; padding: 26px 0; border-right: 0; border-bottom: 1px solid var(--border); }
  .tool-list article:last-child { border-bottom: 0; }
  .tool-list h3 { margin-top: 35px; }
  .privacy-section { padding: 52px 0; }
  .privacy-layout { grid-template-columns: 1fr; gap: 24px; }
  .privacy-signal { height: 48px; }
  .privacy-layout > p { grid-column: auto; }
  .privacy-layout h2 { font-size: 25px; }
  footer { min-height: 125px; }
  footer > p { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}
