:root {
  color-scheme: dark;
  --bg: #07111d;
  --bg-soft: #0c1a29;
  --surface: #102338;
  --surface-2: #142c44;
  --text: #f5f8fb;
  --muted: #adc0d2;
  --line: #29445f;
  --accent: #2fd0b5;
  --accent-dark: #092d2a;
  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 82% 8%, rgba(47, 208, 181, .12), transparent 31rem),
    linear-gradient(180deg, #07111d 0%, #091726 100%);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  min-height: 100vh;
}

a { color: var(--accent); text-underline-offset: .18em; }
a:hover { color: #7de7d5; }
a:focus-visible, .button:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 50;
  padding: .7rem 1rem;
  background: #fff;
  color: #07111d;
  border-radius: .5rem;
}
.skip-link:focus { top: 1rem; }

.container { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }

.site-header {
  border-bottom: 1px solid rgba(173, 192, 210, .18);
  background: rgba(7, 17, 29, .88);
  backdrop-filter: blur(12px);
}

.header-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 750;
  letter-spacing: -.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(47, 208, 181, .55);
  border-radius: 10px;
  background: linear-gradient(135deg, #163a4f, #0b2729);
  color: var(--accent);
  font-size: .82rem;
  letter-spacing: .05em;
}

nav ul { display: flex; flex-wrap: wrap; gap: .35rem; list-style: none; margin: 0; padding: 0; }
nav a { display: inline-block; padding: .45rem .65rem; color: var(--muted); text-decoration: none; border-radius: .45rem; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); background: rgba(255,255,255,.06); }

main { padding: 4.5rem 0 5rem; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: .86rem;
  font-weight: 760;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 1.8rem; height: 2px; background: currentColor; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -.035em; }
h1 { max-width: 15ch; margin: 0; font-size: clamp(2.5rem, 7vw, 5.4rem); }
h2 { margin: 0 0 1rem; font-size: clamp(1.75rem, 4vw, 2.6rem); }
h3 { margin: 0 0 .6rem; font-size: 1.25rem; }
p { margin: 0 0 1rem; }

.lead { max-width: 720px; margin-top: 1.5rem; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.3rem); }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: .7rem 1.05rem;
  border: 1px solid var(--accent);
  border-radius: .65rem;
  background: var(--accent);
  color: #061713;
  font-weight: 760;
  text-decoration: none;
}
.button:hover { color: #061713; background: #78e6d3; }
.button.secondary { color: var(--text); background: transparent; border-color: var(--line); }
.button.secondary:hover { color: var(--text); background: rgba(255,255,255,.06); }

.section { margin-top: 5rem; }
.section-intro { max-width: 720px; color: var(--muted); }

.app-card {
  display: grid;
  grid-template-columns: minmax(110px, 150px) 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  margin-top: 2rem;
  padding: clamp(1.4rem, 4vw, 2.5rem);
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: linear-gradient(135deg, rgba(20,44,68,.96), rgba(12,26,41,.96));
  box-shadow: 0 25px 70px rgba(0,0,0,.22);
}

.app-icon {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 22%;
  background: linear-gradient(145deg, #36ddc0, #0b7f83 65%, #153d5c);
  color: #041512;
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 900;
  letter-spacing: -.05em;
  box-shadow: inset 0 1px rgba(255,255,255,.45), 0 18px 38px rgba(0,0,0,.28);
}

.tag-list { display: flex; flex-wrap: wrap; gap: .55rem; margin: 1.1rem 0 1.5rem; padding: 0; list-style: none; }
.tag-list li { padding: .32rem .65rem; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .9rem; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2rem; }
.panel { padding: 1.35rem; border: 1px solid var(--line); border-radius: .8rem; background: rgba(16,35,56,.68); }
.panel p, .muted { color: var(--muted); }

.prose { max-width: 820px; }
.prose h1 { max-width: none; font-size: clamp(2.25rem, 6vw, 4rem); }
.prose h2 { margin-top: 2.8rem; font-size: 1.6rem; }
.prose h3 { margin-top: 1.8rem; }
.prose ul { padding-left: 1.35rem; }
.prose li + li { margin-top: .35rem; }
.prose address { font-style: normal; }
.meta { margin: .8rem 0 2.2rem; color: var(--muted); }
.notice { margin-top: 2rem; padding: 1rem 1.1rem; border-left: 3px solid var(--accent); background: var(--accent-dark); color: #d5f8f1; }

.site-footer { padding: 2rem 0; border-top: 1px solid rgba(173, 192, 210, .18); color: var(--muted); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer-links a { color: var(--muted); }

@media (max-width: 760px) {
  .header-inner { align-items: flex-start; flex-direction: column; padding: 1rem 0; }
  nav ul { gap: .1rem; }
  main { padding-top: 3.2rem; }
  .app-card { grid-template-columns: 76px 1fr; align-items: start; }
  .grid { grid-template-columns: 1fr; }
}

@media (max-width: 500px) {
  .app-card { grid-template-columns: 1fr; }
  .app-icon { width: 82px; }
}

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