:root {
  --bg: #000000;
  --surface: #333333;
  --text: #FFFFFF;
  --muted: #CCCCCC;
  --red: #FF3300;
  --yellow: #FFCC00;
  --glow: #FFFF99;
  --gutter: 16px;
  --maxw: 1120px;
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--yellow); }
a:hover { color: var(--glow); }
:focus-visible { outline: 2px solid var(--yellow); outline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }

.sr-only, .hp {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.site-header, .site-footer, .section > .wrap {
  max-width: var(--maxw); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter);
}
.site-header {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; padding-top: 20px; padding-bottom: 20px; position: relative; z-index: 1;
}
.brand { color: var(--red); font-weight: 700; text-decoration: none; font-size: 18px; }
.site-header nav { display: flex; gap: 20px; margin-right: 96px; }
.site-header nav a, .site-footer nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
.site-header nav a:hover, .site-footer nav a:hover { color: var(--text); }

.site-footer {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  border-top: 1px solid var(--surface); padding-top: 24px; padding-bottom: 40px;
  color: var(--muted); font-size: 14px;
}
.site-footer p { margin: 0; }
.site-footer nav { display: flex; gap: 20px; }

.section { padding: 64px 0; }
.eyebrow { color: var(--yellow); font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 12px; }
.muted { color: var(--muted); }
h1, h2, h3 { line-height: 1.1; margin: 0 0 16px; }
h1 { font-size: clamp(36px, 6vw, 64px); letter-spacing: -0.02em; }
h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.01em; }
h3 { font-size: 21px; }
.hl { color: var(--yellow); }

.hero { position: relative; }
.glow {
  position: absolute; top: 0; right: 0; width: 144px; height: 144px; pointer-events: none;
  background: radial-gradient(circle at 100% 0%, #FFFF99 0, #FFCC00 33px, #FF3300 78px, #000000 144px);
  -webkit-mask-image: radial-gradient(circle at 100% 0%, #000000 0, #000000 120px, transparent 144px);
          mask-image: radial-gradient(circle at 100% 0%, #000000 0, #000000 120px, transparent 144px);
}

.btn, button {
  display: inline-block; background: var(--red); color: var(--bg); border: 0; border-radius: 8px;
  padding: 12px 20px; font: inherit; font-weight: 700; font-size: 16px; text-decoration: none; cursor: pointer;
}
.btn:hover, button:hover { background: var(--yellow); color: var(--bg); }
.btn-ghost { background: transparent; color: var(--yellow); border: 1px solid var(--surface); }
.btn-ghost:hover { background: var(--surface); color: var(--text); }

.card { background: var(--surface); border-radius: 12px; padding: 28px; }

input, textarea {
  width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--surface);
  border-radius: 8px; padding: 12px 14px; font: inherit;
}
input:focus, textarea:focus { border-color: var(--yellow); outline: none; }
label { display: block; font-size: 15px; color: var(--muted); margin: 16px 0 6px; }

.signup { display: flex; gap: 12px; max-width: 520px; flex-wrap: wrap; }
.signup input[type="email"] { flex: 1 1 240px; }

.prose { max-width: 680px; }
.prose h2 { font-size: 24px; margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--surface); }
.prose kbd { font: 14px ui-monospace, Menlo, monospace; border: 1px solid var(--surface); border-radius: 4px; padding: 1px 5px; }

.notice { border-left: 4px solid var(--yellow); padding: 12px 16px; background: var(--surface); }

@media (max-width: 640px) {
  .site-header { flex-direction: column; align-items: flex-start; }
  .site-header nav { margin-right: 0; }
  .glow { width: 96px; height: 96px; background: radial-gradient(circle at 100% 0%, #FFFF99 0, #FFCC00 22px, #FF3300 52px, #000000 96px); }
  .section { padding: 48px 0; }
}

/* == home == */
.home-hero { min-height: min(72vh, 640px); display: flex; align-items: center; }
.home-hero .wrap { width: 100%; }
.home-hero h1 { max-width: 14ch; }
.lede { font-size: 19px; max-width: 46ch; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.app-card { display: flex; gap: 28px; align-items: center; color: var(--text); text-decoration: none; }
.app-card:hover { outline: 1px solid var(--red); }
.app-card img { border-radius: 22px; flex: none; }
.badge { display: inline-block; color: var(--bg); background: var(--yellow); border-radius: 6px; padding: 4px 10px; font-size: 14px; font-weight: 700; margin: 0; }
@media (max-width: 640px) { .app-card { flex-direction: column; align-items: flex-start; } }

/* == app == */
.app-hero .wrap { display: flex; gap: 40px; align-items: center; }
.app-icon { border-radius: 36px; flex: none; }
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 40px; }
.wrap + .features { margin-top: 24px; }
.features h3 { color: var(--yellow); }
.features p { margin: 0; font-size: 16px; }
.features kbd, .muted kbd { font: 14px ui-monospace, Menlo, monospace; border: 1px solid var(--surface); border-radius: 4px; padding: 1px 5px; }
.shots { display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 12px; }
.shots img { width: min(820px, 86vw); flex: none; scroll-snap-align: start; border-radius: 10px; border: 1px solid var(--surface); }
@media (max-width: 900px) { .features { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) {
  .app-hero .wrap { flex-direction: column; align-items: flex-start; }
  .app-icon { width: 112px; height: 112px; border-radius: 26px; }
  .features { grid-template-columns: minmax(0, 1fr); }
}

/* == pages == */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: start; }
.contact button { margin-top: 20px; }
.small { font-size: 14px; }
@media (max-width: 800px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } }
.prose code { overflow-wrap: anywhere; }