:root {
  --bg: #1b1d21;
  --bg-2: #25282d;
  --panel: #2d3137;
  --line: #3b4047;
  --text: #eceef1;
  --muted: #a6adb7;
  --orange: #ffa300;
  --on-orange: #1b1d21;
  --radius: 14px;
  --gap: 16px;
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --body: "Barlow", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.55 var(--body);
  overflow-x: hidden;
}
p, li, summary { text-wrap: pretty; }
h1, h2, h3 { font-family: var(--display); line-height: 1.05; margin: 0; text-wrap: balance; }
a { color: var(--orange); text-underline-offset: 3px; overflow-wrap: anywhere; }
a:hover { color: #ffc04d; }
b { color: var(--text); font-weight: 600; }
img, svg { display: block; }

.wrap { width: min(1080px, 100% - 32px); margin-inline: auto; }

/* Hero */
.hero {
  border-bottom: 3px solid var(--orange);
  background:
    radial-gradient(50% 90% at 22% 50%, rgba(255, 163, 0, .2), transparent 70%),
    linear-gradient(180deg, #2a2d33 0%, var(--bg) 100%);
}
.hero-inner {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  align-items: center; gap: 48px; padding: 64px 0 72px;
}
.hero-logo img { width: 100%; max-width: 440px; height: auto; margin-inline: auto; filter: drop-shadow(0 18px 40px rgba(0, 0, 0, .55)); }
.eyebrow {
  margin: 0 0 10px; font: 700 15px/1 var(--display);
  letter-spacing: .22em; text-transform: uppercase; color: var(--orange);
}
h1 { font-size: clamp(46px, 7.4vw, 92px); font-weight: 800; text-transform: uppercase; }
h1 span { color: var(--orange); }
.lead { color: var(--muted); font-size: 19px; max-width: 32em; margin: 0; }
h1 + .lead { margin-top: 18px; }
.lead + .lead { margin-top: 6px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 50px; padding: 0 24px; border-radius: 10px;
  font: 700 18px/1 var(--display); letter-spacing: .06em; text-transform: uppercase;
  text-decoration: none; text-align: center; white-space: nowrap;
  transition: background-color .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--orange); color: var(--on-orange); }
.btn-primary:hover { background: #ffb52e; color: var(--on-orange); }
.btn-ghost { border: 2px solid var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--orange); color: var(--text); }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }

/* Sections */
main { padding: 16px 0 8px; }
.section { padding-top: 64px; }
h2 { font-size: clamp(32px, 4.6vw, 46px); font-weight: 800; text-transform: uppercase; margin-bottom: 24px; }
h3 { font-size: 26px; font-weight: 700; text-transform: uppercase; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; min-width: 0;
}
.card p { margin: 0; color: var(--muted); }
.hint { font-size: 15px; }
.card p + .hint { margin-top: 6px; }

/* Steps */
.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap);
}
.step { display: grid; grid-template-columns: 44px minmax(0, 1fr); column-gap: 18px; align-content: start; }
.step > * { grid-column: 2; }
.num {
  grid-column: 1; grid-row: 1 / span 4; align-self: start;
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center; background: var(--orange); color: var(--on-orange);
  font: 800 24px/1 var(--display);
}
.step h3 { margin: 8px 0 8px; }

.invite {
  display: flex; margin-top: 14px; min-width: 0;
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--bg-2);
}
.invite-link {
  flex: 1; min-width: 0; padding: 11px 14px; font-weight: 600; text-decoration: none;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; overflow-wrap: normal;
}
.copy {
  flex: none; border: 0; border-left: 1px solid var(--line); background: transparent; color: var(--text);
  padding: 0 16px; font: 700 16px/1 var(--display); letter-spacing: .06em; text-transform: uppercase; cursor: pointer;
}
.copy:hover { background: var(--panel); color: var(--orange); }

/* Apps */
.apps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap); }
.app { display: flex; flex-direction: column; gap: 14px; }
.app-head { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.app h3 { display: flex; align-items: center; gap: 10px; }
.os-icon { width: 28px; height: 28px; flex: none; color: var(--orange); }
.tag {
  font: 700 13px/1 var(--display); letter-spacing: .14em; text-transform: uppercase;
  color: var(--orange); border: 1px solid rgba(255, 163, 0, .45); border-radius: 999px; padding: 5px 10px;
}
.facts { list-style: none; margin: 0; padding: 0; color: var(--muted); }
.facts li { padding-left: 16px; position: relative; }
.facts li + li { margin-top: 4px; }
.facts li::before { content: ""; position: absolute; left: 0; top: .68em; width: 6px; height: 6px; border-radius: 50%; background: var(--orange); }
.app .btn { margin-top: auto; }

.note {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; align-items: center;
  margin-top: var(--gap); padding: 24px; border-radius: var(--radius);
  background: rgba(255, 163, 0, .07); border: 1px solid rgba(255, 163, 0, .35);
}
.note h3 { font-size: 22px; color: var(--orange); margin-bottom: 10px; }
.note ol { margin: 0; padding-left: 22px; }
.note li + li { margin-top: 4px; }
.note li::marker { color: var(--orange); font-weight: 700; }
.note .hint { margin: 10px 0 0; color: var(--muted); }
.note-img { width: 100%; height: auto; border-radius: 10px; }
.aside { margin: 14px 0 0; color: var(--muted); font-size: 15px; }

/* FAQ */
.faq { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary {
  cursor: pointer; list-style: none; position: relative;
  padding: 18px 40px 18px 0; font-weight: 600; font-size: 18px;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+"; position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  color: var(--orange); font: 700 28px/1 var(--display);
}
details[open] summary::after { content: "\2212"; }
details p, details ul { margin: 0 0 18px; color: var(--muted); max-width: 70ch; }
details ul { padding-left: 20px; }
details li + li { margin-top: 6px; }

/* Footer */
.footer { margin-top: 72px; border-top: 1px solid var(--line); }
.footer-inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px;
  padding: 24px 0 32px; color: var(--muted); font-size: 15px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }

/* Tablet */
@media (max-width: 1023px) {
  .hero-inner { gap: 32px; padding: 48px 0 56px; }
  .apps { grid-template-columns: 1fr; }
  .app {
    display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; column-gap: 24px;
  }
  .app-head, .facts { grid-column: 1; }
  .app .btn { grid-column: 2; grid-row: 1 / span 2; margin: 0; min-width: 200px; }
  .note { grid-template-columns: 1fr; gap: 20px; }
  .note-img { max-width: 560px; }
  .invite { flex-direction: column; }
  .invite-link { white-space: normal; text-overflow: clip; }
  .copy { border-left: 0; border-top: 1px solid var(--line); padding: 12px 16px; }
}

/* Mobile */
@media (max-width: 699px) {
  body { font-size: 16px; }
  .hero-inner { grid-template-columns: 1fr; gap: 24px; padding: 32px 0 40px; }
  .hero-logo img { max-width: 240px; margin-inline: 0; }
  .lead { font-size: 18px; }
  .cta .btn { flex: 1 1 100%; }
  .section { padding-top: 48px; }
  .steps { grid-template-columns: 1fr; }
  .card, .note { padding: 20px; }
  .step { grid-template-columns: 38px minmax(0, 1fr); column-gap: 14px; }
  .num { width: 38px; height: 38px; font-size: 21px; }
  .step h3 { margin-top: 5px; }
  h3 { font-size: 24px; }
  .app { display: flex; align-items: stretch; }
  .app .btn { margin-top: 4px; min-width: 0; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}