:root {
  --bg: #111318;
  --bg2: #16181d;
  --surface: #1c1f26;
  --surface2: #252a33;
  --border: #2c313c;
  --text: #e4e7ee;
  --muted: #9aa2b4;
  --accent: #7aa2f7;
  --green: #9ece6a;
  --purple: #bb9af7;
  --radius: 14px;
  --font: 'Segoe UI Variable Text', 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  --mono: 'Cascadia Code', 'Cascadia Mono', Consolas, ui-monospace, monospace;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  padding: 0.1em 0.35em;
  border-radius: 5px;
  background: var(--surface2);
  color: var(--green);
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.wrap.narrow {
  max-width: 760px;
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 16px;
  top: 16px;
  z-index: 10;
  padding: 8px 12px;
  background: var(--accent);
  color: #0b0d12;
  border-radius: 8px;
}

/* ---- nav ---- */

.nav {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(17, 19, 24, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(44, 49, 60, 0.6);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 19px;
  text-decoration: none;
}

.nav nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
}

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

.nav-gh {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
}

/* ---- hero ---- */

.hero {
  position: relative;
  padding: 88px 0 40px;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: -200px -20% auto;
  height: 760px;
  background:
    radial-gradient(closest-side at 30% 40%, rgba(122, 162, 247, 0.22), transparent),
    radial-gradient(closest-side at 72% 30%, rgba(187, 154, 247, 0.16), transparent),
    radial-gradient(closest-side at 55% 75%, rgba(158, 206, 106, 0.09), transparent);
  pointer-events: none;
}

.hero .wrap {
  position: relative;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 20px;
  padding: 5px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(28, 31, 38, 0.7);
  color: var(--muted);
  font-size: 14px;
}

h1 {
  max-width: 900px;
  margin: 0 auto;
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  font-weight: 750;
}

.accent {
  background: linear-gradient(92deg, var(--accent), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  max-width: 720px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 20px);
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 22px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
}

.btn:hover {
  background: var(--surface2);
  transform: translateY(-1px);
}

.btn.primary {
  border-color: transparent;
  background: var(--accent);
  color: #0b0d12;
  box-shadow: 0 8px 30px rgba(122, 162, 247, 0.35);
}

.btn.primary:hover {
  background: #8fb2fa;
}

.fine {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.shot {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg2);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
}

.hero-shot {
  margin-top: 64px;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.6), 0 0 80px rgba(122, 162, 247, 0.12);
}

/* ---- sections ---- */

section {
  padding: 96px 0;
}

h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-align: center;
}

.section-lede {
  max-width: 680px;
  margin: 16px auto 0;
  color: var(--muted);
  text-align: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 56px;
}

.card {
  padding: 26px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg2));
}

.card h3 {
  margin: 16px 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}

.icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(122, 162, 247, 0.12);
  color: var(--accent);
}

.card:nth-child(4n + 2) .icon {
  background: rgba(158, 206, 106, 0.12);
  color: var(--green);
}

.card:nth-child(4n + 3) .icon {
  background: rgba(187, 154, 247, 0.14);
  color: var(--purple);
}

.card:nth-child(4n + 4) .icon {
  background: rgba(224, 175, 104, 0.13);
  color: #e0af68;
}

.icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.screens {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.gallery figcaption {
  padding: 14px 18px 16px;
  color: var(--muted);
  font-size: 15px;
  border-top: 1px solid var(--border);
}

.gallery figcaption strong {
  color: var(--text);
}

.gallery a {
  display: block;
}

.gallery img {
  transition: transform 0.3s;
}

.gallery a:hover img {
  transform: scale(1.02);
}

.keys-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.keys h2,
.keys .section-lede {
  text-align: left;
  margin-left: 0;
}

.shortcuts {
  display: grid;
  gap: 10px;
  margin: 0;
}

.shortcuts div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.shortcuts dt {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--muted);
  white-space: nowrap;
}

.shortcuts dd {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  text-align: right;
}

kbd {
  display: inline-block;
  min-width: 26px;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 7px;
  background: var(--surface2);
  color: var(--text);
  font: 13px/1.6 var(--mono);
  text-align: center;
}

.faq details {
  border-bottom: 1px solid var(--border);
}

.faq h2 {
  margin-bottom: 32px;
}

.faq summary {
  padding: 20px 0;
  font-weight: 600;
  font-size: 18px;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 32px;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: '+';
  position: absolute;
  right: 4px;
  top: 16px;
  color: var(--accent);
  font-size: 24px;
  font-weight: 400;
}

.faq details[open] summary::after {
  content: '−';
}

.faq details p {
  margin: -6px 0 20px;
  color: var(--muted);
}

.download {
  text-align: center;
  background:
    radial-gradient(closest-side at 50% 30%, rgba(122, 162, 247, 0.16), transparent),
    var(--bg);
}

.download img {
  margin: 0 auto 22px;
}

.cta.center {
  justify-content: center;
}

.footer {
  padding: 36px 0 48px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

.footer p {
  margin: 4px 0;
}

.footer a {
  color: var(--muted);
}

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

.footer .muted {
  opacity: 0.75;
}

/* ---- responsive ---- */

@media (max-width: 1000px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery {
    grid-template-columns: 1fr;
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
  }

  .keys-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .wrap {
    padding: 0 16px;
  }

  .nav nav {
    gap: 16px;
  }

  .nav nav a:not(.nav-gh) {
    display: none;
  }

  .hero {
    padding-top: 56px;
  }

  .hero-shot {
    margin-top: 40px;
  }

  section {
    padding: 64px 0;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .shortcuts div {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .shortcuts dd {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn,
  .gallery img {
    transition: none;
  }
}