/* NOVA public application — premium digital-asset product styling (deliberately calmer than the Edge Console). */
:root {
  --bg: #080a0d; --s1: #0e1116; --s2: #12161c; --line: #252a32; --line2: #1a1e25;
  --fg: #eef0f3; --muted: #a0a7b1; --dim: #6b7280;
  --brand: #f6821f; --brand2: #ff9d4d; --ok: #1fd29b; --bad: #ff5a64; --blue: #5aa0ff;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 15px/1.6 var(--sans); color: var(--fg); background: var(--bg); min-height: 100vh; display: flex; flex-direction: column;
  background-image: radial-gradient(1100px 520px at 78% -12%, rgba(246,130,31,.075), transparent 62%), radial-gradient(900px 600px at -10% 10%, rgba(90,160,255,.05), transparent 60%);
  background-attachment: fixed; -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 6px; }
main { flex: 1; }
.mono { font-family: var(--mono); font-size: .9em; }
.num { font-variant-numeric: tabular-nums; }
.dim { color: var(--dim); } .ok { color: var(--ok); } .bad { color: var(--bad); } .accent { color: var(--brand2); }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.wrap.page { padding-top: 56px; padding-bottom: 64px; }
.wrap.narrow { max-width: 820px; }

/* ---------- navigation ---------- */
.nav { position: sticky; top: 0; z-index: 10; border-bottom: 1px solid var(--line2); background: rgba(8,10,13,.78); backdrop-filter: blur(14px); }
.nav-in { max-width: 1180px; margin: 0 auto; padding: 14px 28px; display: flex; align-items: center; gap: 18px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand b { display: block; font-size: 17px; letter-spacing: .2em; font-weight: 800; }
.brand small { display: block; font-size: 9.5px; letter-spacing: .22em; color: var(--dim); text-transform: uppercase; margin-top: -2px; }
.mark { width: 24px; height: 24px; background: linear-gradient(135deg, #ffb070, var(--brand)); clip-path: polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%); }
.nav nav { display: flex; gap: 2px; margin-left: 12px; }
.nav nav a { padding: 7px 12px; border-radius: 7px; color: var(--muted); font-size: 14px; font-weight: 500; }
.nav nav a:hover { color: var(--fg); background: rgba(255,255,255,.035); }
.nav nav a[aria-current=page] { color: var(--fg); background: rgba(255,255,255,.06); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.sys { display: inline-flex; align-items: center; gap: 7px; font-size: 11px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: #7ee8c3; }
.sys i, .op i, .status-h i { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 rgba(31,210,155,.5); animation: pulse 2.4s infinite; flex: none; }
.sys.down { color: #ff9aa1; } .sys.down i, .op.down i, .status-h.down i { background: var(--bad); animation: none; }
@keyframes pulse { 70% { box-shadow: 0 0 0 6px rgba(31,210,155,0); } }
.demo-badge { display: inline-flex; align-items: center; padding: 3px 8px; border: 1px solid rgba(246,130,31,.4); border-radius: 5px; color: var(--brand2); font: 600 10px var(--sans); letter-spacing: .16em; text-transform: uppercase; white-space: nowrap; }
.demo-badge.big { margin-top: 28px; }

/* ---------- buttons ---------- */
.btn, .ghost { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 20px; border-radius: 8px; font: 600 14px var(--sans); cursor: pointer; transition: background .15s, border-color .15s, transform .15s; border: 1px solid transparent; }
.btn { background: var(--brand); color: #fff; box-shadow: 0 10px 30px -14px rgba(246,130,31,.9); }
.btn:hover { background: #ff8f33; } .btn:active { transform: translateY(1px); } .btn:disabled { opacity: .6; cursor: progress; }
.ghost { border-color: var(--line); color: var(--fg); background: rgba(255,255,255,.02); }
.ghost:hover { border-color: #3a414c; background: rgba(255,255,255,.05); }
.small { height: 34px; padding: 0 13px; font-size: 13px; }
button.btn { font-family: var(--sans); }

/* ---------- type ---------- */
.kicker { margin: 0; color: var(--brand2); font-size: 11.5px; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; }
.kicker span { color: var(--dim); }
.h1 { margin: 12px 0 10px; font-size: clamp(34px, 4.6vw, 52px); line-height: 1.06; letter-spacing: -.03em; font-weight: 700; }
.lede { margin: 0; color: var(--muted); font-size: 17px; max-width: 640px; }

/* ---------- hero ---------- */
.hero { padding: 92px 0 56px; }
.hero h1 { margin: 22px 0 18px; font-size: clamp(52px, 8.4vw, 104px); line-height: .98; letter-spacing: -.045em; font-weight: 700; }
.hero h1 em { font-style: normal; color: var(--brand2); }
.hero .lede { font-size: 19px; max-width: 580px; }
.cta { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.hero .demo-badge.big { display: inline-flex; }

/* ---------- markets ---------- */
.markets { margin-top: 8px; }
.sec-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.sim { display: inline-flex; padding: 2px 8px; border: 1px solid var(--line); border-radius: 5px; color: var(--dim); font: 500 10px var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.market-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: 12px; background: var(--s1); overflow: hidden; }
.market { display: flex; flex-direction: column; gap: 4px; padding: 20px 22px; border-right: 1px solid var(--line2); }
.market:last-child { border-right: 0; }
.market .pair { color: var(--muted); font-size: 13px; font-weight: 600; letter-spacing: .04em; }
.market .price { font-size: 24px; font-weight: 600; letter-spacing: -.01em; transition: color .6s; }
.market .price.tick-up { animation: up 1.2s ease-out; } .market .price.tick-down { animation: down 1.2s ease-out; }
@keyframes up { from { color: var(--ok); } } @keyframes down { from { color: var(--bad); } }
.chg { font-size: 13.5px; font-weight: 600; } .chg.up { color: var(--ok); } .chg.down { color: var(--bad); }

/* ---------- cards ---------- */
.card { border: 1px solid var(--line); border-radius: 12px; background: linear-gradient(180deg, var(--s2), var(--s1)); padding: 24px; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 16px 0 72px; }
.svc { list-style: none; margin: 14px 0 0; padding: 0; }
.svc li { display: flex; justify-content: space-between; align-items: center; padding: 11px 0; border-bottom: 1px solid var(--line2); font-weight: 500; }
.svc.big li { padding: 15px 0; font-size: 16px; }
.op { display: inline-flex; align-items: center; gap: 8px; color: #7ee8c3; font-size: 11.5px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; }
.op.down { color: #ff9aa1; }
.meta { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; font-weight: 500; }
.meta.three { grid-template-columns: repeat(3, 1fr); }
.meta small, .api-meta small, .kv small, .kvs small { display: block; color: var(--dim); font-size: 10.5px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; }
.flow { list-style: none; display: flex; flex-direction: column; gap: 0; margin: 16px 0; padding: 0; }
.flow li { position: relative; padding: 9px 0 9px 22px; font-weight: 600; }
.flow li::before { content: ""; position: absolute; left: 4px; top: 50%; width: 8px; height: 8px; margin-top: -4px; border-radius: 50%; border: 2px solid var(--line); background: var(--bg); }
.flow li:not(:last-child)::after { content: ""; position: absolute; left: 8px; top: calc(50% + 6px); height: calc(100% - 4px); width: 1px; background: var(--line); }
.flow li.hl { color: var(--brand2); } .flow li.hl::before { border-color: var(--brand); background: var(--brand); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.chips span { padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 12.5px; }

/* ---------- API ---------- */
.api-meta { display: flex; flex-wrap: wrap; gap: 28px; margin: 26px 0 22px; padding: 16px 20px; border: 1px solid var(--line); border-radius: 10px; background: var(--s1); font-weight: 500; }
.endpoints { display: grid; gap: 12px; margin-bottom: 12px; }
.ep p { margin: 10px 0 14px; color: var(--muted); }
.ep-head { display: flex; align-items: center; gap: 12px; }
.ep-head .ghost, .ep-head .sim { margin-left: auto; }
.path { font-size: 16px; font-weight: 500; }
.method { display: inline-flex; padding: 2px 8px; border-radius: 5px; font: 700 11px var(--mono); letter-spacing: .06em; }
.method.get { color: var(--blue); background: rgba(90,160,255,.12); }
.method.post { color: var(--brand2); background: rgba(246,130,31,.13); }
.code { display: flex; align-items: flex-start; gap: 10px; padding: 12px 14px; border: 1px solid var(--line2); border-radius: 8px; background: #06080b; }
.code code { flex: 1; min-width: 0; font: 12.5px/1.6 var(--mono); color: #c9ced6; white-space: pre-wrap; word-break: break-all; }
.copy { flex: none; height: 26px; padding: 0 10px; border: 1px solid var(--line); border-radius: 6px; background: transparent; color: var(--muted); font: 600 11.5px var(--sans); cursor: pointer; }
.copy:hover { color: var(--fg); border-color: #3a414c; }

/* ---------- request inspector ---------- */
.inspect { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 30px; }
.inspect .card.cf { border-color: rgba(246,130,31,.35); background: linear-gradient(180deg, rgba(246,130,31,.06), var(--s1) 55%); }
.kv { padding: 13px 0; border-bottom: 1px solid var(--line2); }
.kv:last-child { border-bottom: 0; }
.kv span { font-size: 17px; font-weight: 500; word-break: break-all; }
.kv .method { font-size: 11px; margin-right: 6px; vertical-align: 2px; }
.path-line { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 16px 0; padding: 14px 18px; border: 1px dashed var(--line); border-radius: 10px; color: var(--muted); font-size: 13.5px; }
.path-line li:not(:last-child)::after { content: "→"; margin-left: 8px; color: var(--dim); }
.path-line .hl { color: var(--brand2); font-weight: 600; }
.raw { padding: 0; }
.raw summary { cursor: pointer; list-style: none; display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px; padding: 16px 22px; font-weight: 600; }
.raw summary::-webkit-details-marker { display: none; }
.raw summary::before { content: "▸"; color: var(--brand); } .raw[open] summary::before { content: "▾"; }
.raw summary .dim { font-weight: 400; font-size: 12.5px; }
.raw pre { margin: 0; padding: 18px 22px; border-top: 1px solid var(--line2); overflow: auto; font-size: 12.5px; line-height: 1.65; color: #c9ced6; }

/* ---------- orders ---------- */
.order { margin-top: 16px; }
.order-grid { display: grid; grid-template-columns: 340px 1fr; gap: 28px; }
.order-form { display: flex; flex-direction: column; gap: 14px; }
.order-form label { display: flex; flex-direction: column; gap: 6px; color: var(--dim); font-size: 10.5px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; }
.order-form select, .order-form input { height: 44px; padding: 0 12px; border: 1px solid var(--line); border-radius: 8px; background: #06080b; color: var(--fg); font: 500 15px var(--sans); }
.order-form select:focus, .order-form input:focus { border-color: var(--brand); outline: none; }
.warn-note { margin: 0; color: var(--brand2); font-size: 12.5px; font-weight: 600; }
.warn-note .dim { font-weight: 400; }
.order-result { display: flex; align-items: center; min-height: 260px; padding: 24px; border: 1px dashed var(--line); border-radius: 10px; }
.state { width: 100%; }
.state h3 { margin: 6px 0 14px; font-size: 26px; letter-spacing: -.01em; }
.state p { color: var(--muted); }
.kvs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 6px 0 16px; font-weight: 500; }
.state.okst { border-left: 3px solid var(--ok); padding-left: 18px; }
.state.rl { border-left: 3px solid var(--bad); padding-left: 18px; }
.kicker.ok { color: var(--ok); } .kicker.bad { color: var(--bad); }

/* ---------- status & errors ---------- */
.status-h { display: flex; align-items: center; gap: 14px; font-size: clamp(28px, 4vw, 40px); margin-bottom: 26px; }
.status-h i { width: 12px; height: 12px; }
.small-note { margin-top: 14px; font-size: 13px; }
.small-note a { color: var(--brand2); }
.err { text-align: left; }
.err-code { margin: 10px 0 6px; font-size: clamp(88px, 16vw, 160px); line-height: 1; font-weight: 800; letter-spacing: -.05em; color: transparent; -webkit-text-stroke: 1.5px #3a414c; }
.err .btn { margin-top: 26px; }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line2); background: #06080b; }
.foot-in { max-width: 1180px; margin: 0 auto; padding: 40px 28px; display: grid; grid-template-columns: 1.2fr 1fr 1fr 1.4fr; gap: 28px; font-size: 13.5px; color: var(--muted); }
.foot-in p { margin: 6px 0 12px; }
.foot-in a { display: block; padding: 3px 0; }
.foot-in a:hover { color: var(--fg); }
.foot-in h4 { margin: 0 0 6px; color: var(--dim); font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase; }
.foot-brand { color: var(--fg); letter-spacing: .2em; font-size: 16px; }
.foot-in .ghost { display: inline-flex; margin-top: 4px; }

@media (max-width: 900px) {
  .nav-in { flex-wrap: wrap; padding: 12px 16px; gap: 10px; }
  .nav nav { order: 3; width: 100%; margin-left: 0; }
  .nav-right .ghost, .nav .demo-badge { display: none; }
  .wrap { padding: 0 16px; }
  .market-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .market:nth-child(2) { border-right: 0; } .market:nth-child(-n+2) { border-bottom: 1px solid var(--line2); }
  .two, .inspect, .order-grid { grid-template-columns: 1fr; }
  .foot-in { grid-template-columns: 1fr 1fr; }
  .hero { padding-top: 56px; }
  .kvs, .meta.three { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }