/* arddev.tech — Spatial Glass Vision Pro ArdDev (волна 7).
   Канон: фотофон-интерьер фикс-слоем + тёплое графитовое стекло; синий #477FEC = CTA,
   зелёный #00e5a0 = бренд-живое; круг и капсула; vibrancy вместо серого. */

:root {
  --ink: #F2F4F7;
  --ink2: rgba(242, 244, 247, .72);
  --ink3: rgba(242, 244, 247, .5);
  --blue: #477FEC;
  --bluew: rgba(71, 127, 236, .16);
  --el: #00e5a0;
  --glass: rgba(46, 45, 42, .62);
  --glass2: rgba(255, 255, 255, .09);
  --glass3: rgba(255, 255, 255, .14);
  --line: rgba(255, 255, 255, .09);
  --warn: #d9a13b;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
header, main, footer { position: relative; z-index: 1; }
html { scroll-behavior: smooth; }
body {
  font-family: "Golos Text", -apple-system, system-ui, sans-serif;
  color: var(--ink);
  background: #14161c;
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.disp { font-family: "Unbounded", "Golos Text", sans-serif; }
.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
img { max-width: 100%; }

/* фотофон-интерьер: фикс-слой, скроллится только контент */
.wall {
  position: fixed; inset: 0; z-index: 0;
  background: url("assets/bg.jpg") center/cover no-repeat;
}
.wall::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10, 12, 16, .45), rgba(10, 12, 16, .62));
}

/* стекло */
.glass {
  background: var(--glass);
  backdrop-filter: blur(28px) saturate(1.25) brightness(1.04);
  -webkit-backdrop-filter: blur(28px) saturate(1.25) brightness(1.04);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08), 0 18px 50px rgba(8, 10, 14, .35);
  border-radius: 22px;
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass { background: rgba(38, 38, 36, .94); }
}
/* вложенные зоны — белое стекло без второго blur («стекло не видит стекло») */
.pane { background: var(--glass2); border: 1px solid var(--line); border-radius: 16px; }

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 999px;
  background: var(--glass2); border: 1px solid var(--line);
  font-size: 13px;
}
.btn-blue {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 26px; border-radius: 12px;
  background: var(--blue); color: #fff; font-weight: 600; font-size: 14.5px;
  transition: transform 150ms, box-shadow 150ms;
  box-shadow: 0 6px 22px rgba(71, 127, 236, .35);
}
.btn-blue:hover { transform: translateY(-1px); box-shadow: 0 9px 28px rgba(71, 127, 236, .45); }
.gbtn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 24px; border-radius: 12px;
  background: var(--glass2); border: 1px solid var(--line);
  color: var(--ink); font-weight: 500; font-size: 14.5px;
  transition: background 150ms, transform 150ms;
}
.gbtn:hover { background: var(--glass3); transform: translateY(-1px); }
.badge {
  display: inline-flex; align-items: center; height: 22px; padding: 0 10px;
  border-radius: 999px; font-size: 10.5px; font-weight: 600; letter-spacing: .02em;
}
.badge.green { background: rgba(0, 229, 160, .14); color: var(--el); }
.badge.blue { background: var(--bluew); color: #9db9f5; }

/* layout */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 22px; }
section { padding: 46px 0; }
h2 { font-size: clamp(21px, 3.4vw, 28px); line-height: 1.25; margin-bottom: 8px; font-weight: 700; }
.sub { color: var(--ink2); font-size: 14.5px; max-width: 640px; margin-bottom: 26px; }
.kicker {
  font-family: "JetBrains Mono", monospace; font-size: 10px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--el); margin-bottom: 10px;
}

/* topbar-капсулы */
.topbar {
  position: sticky; top: 14px; z-index: 50;
  display: flex; justify-content: center; gap: 10px; flex-wrap: wrap;
  padding: 0 16px; margin-top: 14px;
}
.topbar .brand b em { font-style: normal; color: var(--el); }
.topbar nav { display: none; gap: 2px; }
@media (min-width: 840px) { .topbar nav { display: inline-flex; } }
.topbar nav a { padding: 7px 13px; border-radius: 999px; font-size: 12.5px; color: var(--ink2); transition: background 150ms, color 150ms; }
.topbar nav a:hover { background: var(--glass3); color: var(--ink); }
.lang { font-family: "JetBrains Mono", monospace; font-size: 11px; }
.lang b { color: var(--ink); } .lang span { color: var(--ink3); }

/* hero */
.hero { padding: 72px 0 40px; }
.hero .glass { padding: clamp(28px, 5vw, 52px); max-width: 720px; }
.hero h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.15; font-weight: 700; margin: 14px 0 16px; }
.hero h1 .el { color: var(--el); }
.hero p { color: var(--ink2); font-size: 16px; max-width: 540px; margin-bottom: 28px; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* stats strip */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.stat { padding: 18px 20px; }
.stat .v { font-size: clamp(20px, 3vw, 27px); font-weight: 700; color: var(--el); font-variant-numeric: tabular-nums; }
.stat .k { font-size: 12px; color: var(--ink3); margin-top: 3px; }

/* карточки-гриды */
.grid { display: grid; gap: 13px; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card { padding: 22px; display: flex; flex-direction: column; gap: 10px; }
.card h3 { font-size: 16px; font-weight: 700; }
.card p { font-size: 13px; color: var(--ink2); flex: 1; }
.card .kv { display: flex; justify-content: space-between; gap: 10px; font-size: 12.5px; padding: 3px 0; border-top: 1px solid var(--line); }
.card .kv:first-of-type { border-top: none; }
.card .kv span:first-child { color: var(--ink3); }
.card .kv span:last-child { font-variant-numeric: tabular-nums; }

/* прайс */
.price .card { position: relative; }
.price .v { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; }
.price .v small { font-size: 13px; color: var(--ink3); font-weight: 400; }
.price ul { list-style: none; font-size: 13px; color: var(--ink2); display: grid; gap: 6px; }
.price li::before { content: "✓"; color: var(--el); margin-right: 8px; font-weight: 700; }
.price .hot { outline: 1.5px solid rgba(71, 127, 236, .5); }
.price .hot-tag { position: absolute; top: -10px; right: 16px; }
.terms { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; margin-top: 22px; }
.terms .tcol { padding: 14px 16px; border-radius: 14px; background: var(--glass2); border: 1px solid var(--line); }
.terms .tcol b { font-size: 12.5px; display: block; margin-bottom: 5px; }
.terms .tcol p { font-size: 12px; color: var(--ink2); line-height: 1.55; margin: 0; }
.price .v .fromlbl { font-size: 13px; color: var(--ink3); font-weight: 400; }
.price .pmeta { font-size: 11.5px; color: var(--ink3); margin: 10px 0 2px; }
@media (min-width: 980px) { .pgrid { grid-template-columns: repeat(3, 1fr); } }

/* anthropic */
.anthropic { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; padding: 28px; }
.anthropic .mark {
  width: 58px; height: 58px; border-radius: 16px; flex: none;
  background: var(--glass3); display: grid; place-items: center;
  font-family: "Unbounded", sans-serif; font-size: 26px; font-weight: 700; color: var(--ink);
}

/* footer */
footer { padding: 40px 0 60px; color: var(--ink3); font-size: 12.5px; }
footer .glass { padding: 26px; display: flex; gap: 20px; flex-wrap: wrap; justify-content: space-between; align-items: center; }
footer a:hover { color: var(--ink); }

/* анимации: только transform/opacity */
.rise { animation: rise 450ms cubic-bezier(.32, .72, .28, 1) both; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.io { opacity: 0; transform: translateY(16px); transition: opacity 600ms cubic-bezier(.32,.72,.28,1), transform 600ms cubic-bezier(.32,.72,.28,1); }
.io.on { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .rise, .io { animation: none; transition: opacity 200ms; transform: none; }
}
@media (prefers-reduced-transparency: reduce) {
  .glass { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(38, 38, 36, .96); }
}

/* ── v2: полная продающая структура ── */
.hero-card { padding: clamp(28px, 5vw, 52px); max-width: 760px; }
.hero-proof { margin-top: 14px; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink3); }

.pnum { font-size: 30px; font-weight: 700; color: rgba(0,229,160,.28); line-height: 1; }
.fix { font-size: 12.5px; color: var(--el); border-top: 1px solid var(--line); padding-top: 10px; margin-top: auto; }

.layers { display: grid; gap: 13px; }
.layer { padding: clamp(20px, 3vw, 30px); }
.layer .lnum { font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--el); margin-bottom: 8px; }
.layer h3 { font-size: 17px; margin-bottom: 8px; }
.layer p { font-size: 13.5px; color: var(--ink2); max-width: 70ch; }
.ltags { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 14px; }
.ltags span { font-size: 10px; padding: 4px 11px; border-radius: 999px; background: var(--glass2); border: 1px solid var(--line); color: var(--ink2); }

.manifest { margin-top: 16px; padding: clamp(24px, 4vw, 40px); text-align: center; }
.manifest p { font-size: clamp(15px, 2.4vw, 19px); line-height: 1.55; max-width: 46ch; margin: 0 auto 12px; }
.manifest .mono { font-size: 11px; color: var(--ink3); }

.case { padding: clamp(20px, 3vw, 28px); margin-bottom: 14px; }
.case-head h3 { font-size: clamp(15px, 2.4vw, 19px); margin: 10px 0 14px; }
.case-body { display: grid; grid-template-columns: 1fr 220px; gap: 24px; }
@media (max-width: 700px) { .case-body { grid-template-columns: 1fr; } }
.case-body h4 { font-family: "JetBrains Mono", monospace; font-size: 9.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--el); margin: 12px 0 4px; }
.case-body h4:first-child { margin-top: 0; }
.case-body p { font-size: 13px; color: var(--ink2); }
.case-nums { display: grid; gap: 12px; align-content: start; }
.case-nums > div { background: var(--pane, rgba(255,255,255,.07)); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; }
.case-nums b { display: block; font-size: 19px; color: var(--el); font-variant-numeric: tabular-nums; }
.case-nums span { font-size: 11px; color: var(--ink3); }

.steps { display: grid; gap: 11px; max-width: 720px; }
.step { display: flex; gap: 16px; background: var(--glass); backdrop-filter: blur(28px) saturate(1.25);
  -webkit-backdrop-filter: blur(28px) saturate(1.25); border: 1px solid var(--line); border-radius: 18px; padding: 18px 20px; }
.snum { flex: none; width: 38px; height: 38px; border-radius: 50%; background: var(--bluew);
  color: #9db9f5; display: grid; place-items: center; font-size: 16px; font-weight: 700; }
.step h3 { font-size: 14.5px; margin-bottom: 3px; }
.step p { font-size: 12.5px; color: var(--ink2); }

.tcard { text-align: left; }
.tava { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
  font-size: 16px; font-weight: 700; background: rgba(0,229,160,.14); color: var(--el); margin-bottom: 10px; }
.tava.human { background: var(--bluew); color: #9db9f5; }
.tcard h3 { font-size: 15px; }
.trole { font-size: 9.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink3); margin: 3px 0 8px; }
.tcard p { font-size: 12px; color: var(--ink2); }

.pfor { font-size: 11.5px; color: var(--ink3); margin: -4px 0 6px; }
.price-note { margin-top: 16px; font-size: 12px; color: var(--ink3); max-width: 640px; }

.faq { display: grid; gap: 9px; max-width: 720px; }
.faq details { border-radius: 16px; padding: 0 20px; }
.faq summary { cursor: pointer; padding: 15px 0; font-size: 14px; font-weight: 600; list-style: none; position: relative; padding-right: 30px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  color: var(--el); font-size: 18px; transition: transform 200ms var(--spring, ease); }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding: 0 0 16px; font-size: 13px; color: var(--ink2); max-width: 65ch; }

.contact { padding: clamp(26px, 4vw, 44px); text-align: center; }
.ft-brand { display: flex; align-items: center; gap: 9px; }
.ft-brand .el { font-style: normal; color: var(--el); }
.ft-links { display: flex; gap: 16px; flex-wrap: wrap; }