/* KOIN Tracking · apresentação
   Direção: o "Aço Polar" do KOIN (cromo + safira sobre azul-noite), um só tema escuro por escolha.
   Layout: faixa de navegação fixa, seções em coluna larga (1200px), demo como um app embutido. */
:root {
  --bg: #05080f;
  --surface: #0b1220;
  --surface-2: #111a2c;
  --line: rgba(201, 211, 223, .10);
  --line-2: rgba(201, 211, 223, .18);
  --ink: #e8edf3;
  --mute: #93a1b3;
  --faint: #66758a;
  --accent: #2bb3e6;
  --accent-2: #0a84d6;
  --steel: #c9d3df;
  /* semânticas (não são o acento) */
  --hot: #ff6b4a;
  --warm: #f5b942;
  --cold: #6b8cff;
  --sched: #b18cff;
  --ok: #2fd08a;
  --bad: #ff4d6d;
  --display: "Sora", "Segoe UI", system-ui, sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --r: 14px;
  --shadow: inset 0 1px 0 rgba(255,255,255,.05), 0 1px 2px rgba(0,0,0,.4), 0 18px 44px -26px rgba(0,0,0,.95);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(1200px 600px at 85% -10%, rgba(10,132,214,.16), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(43,179,230,.07), transparent 60%);
  background-attachment: fixed;
  color: var(--ink);
  font: 400 16px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); }
h1, h2, h3, h4 { font-family: var(--display); line-height: 1.15; margin: 0; text-wrap: balance; letter-spacing: -.01em; }
h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 700; }
h3 { font-size: 20px; font-weight: 600; }
h4 { font-size: 15px; font-weight: 600; }
p { margin: 0; }
.num, td, .kpi-v { font-variant-numeric: tabular-nums; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

.wrap { width: min(1200px, 100% - 32px); margin-inline: auto; }
section { padding: 88px 0 24px; }
.eyebrow { font: 600 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.lead-txt { color: var(--mute); font-size: 18px; max-width: 68ch; }
.sec-head { display: grid; gap: 14px; margin-bottom: 36px; }

/* ---------- navegação ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(5,8,15,.78); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar .wrap { display: flex; align-items: center; gap: 20px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand img { height: 22px; width: auto; }
.brand span { font: 600 13px/1 var(--mono); letter-spacing: .14em; color: var(--accent); border: 1px solid var(--line-2); padding: 5px 8px; border-radius: 6px; }
.nav { display: flex; gap: 4px; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.nav a { color: var(--mute); text-decoration: none; font-size: 14px; padding: 8px 10px; border-radius: 8px; white-space: nowrap; }
.nav a:hover { color: var(--ink); background: var(--surface-2); }

.btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  font: 600 14px/1 var(--body); color: var(--ink); text-decoration: none;
  padding: 12px 18px; border-radius: 10px; border: 1px solid var(--line-2); background: var(--surface-2);
  transition: transform .15s ease, border-color .15s ease, background .15s ease;
}
.btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.btn.primary { background: linear-gradient(180deg, var(--accent), var(--accent-2)); border-color: transparent; color: #fff; box-shadow: 0 10px 30px -12px rgba(43,179,230,.7); }
.btn.sm { padding: 8px 12px; font-size: 13px; }
.btn svg { width: 16px; height: 16px; }

/* ---------- hero ---------- */
.hero { position: relative; padding: 0; overflow: hidden; border-bottom: 1px solid var(--line); }
#hero3d { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 32px; align-items: center; min-height: 600px; padding: 56px 0; }
.hero-txt { display: grid; gap: 22px; }
.hero h1 { font-size: clamp(44px, 7vw, 84px); font-weight: 800; background: linear-gradient(180deg, #fff 20%, var(--steel) 70%, #8fa3bb); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero h1 em { font-style: normal; background: linear-gradient(180deg, #7fdcff, var(--accent-2)); -webkit-background-clip: text; background-clip: text; }
.hero .tag { font-size: clamp(18px, 2.2vw, 22px); color: var(--ink); max-width: 30ch; }
.hero .tag b { color: var(--accent); font-weight: 600; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-proof { display: grid; grid-template-columns: repeat(4, auto); justify-content: start; gap: 22px; color: var(--mute); font-size: 13px; line-height: 1.35; }
@media (max-width: 620px) { .hero-proof { grid-template-columns: 1fr 1fr; } }
.hero-proof b { color: var(--ink); font: 700 20px/1.2 var(--display); display: block; }
.ticker { display: grid; gap: 8px; justify-self: end; align-self: end; width: min(330px, 100%); margin-right: -8px; }
.tick {
  display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center;
  background: rgba(11,18,32,.82); border: 1px solid var(--line-2); border-radius: 12px; padding: 12px 14px;
  box-shadow: var(--shadow); backdrop-filter: blur(6px); animation: tickIn .6s ease both;
}
.tick .dot { width: 10px; height: 10px; border-radius: 50%; }
.tick .t1 { font-size: 14px; }
.tick .t2 { font-size: 12px; color: var(--mute); }
.tick .val { font: 600 13px/1 var(--mono); }
@keyframes tickIn { from { transform: translateY(10px); opacity: .2; } to { transform: none; opacity: 1; } }

/* ---------- cards genéricos ---------- */
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line); border-radius: var(--r); padding: 22px; box-shadow: var(--shadow);
  display: grid; gap: 10px; align-content: start;
}
.card p { color: var(--mute); font-size: 15px; }
.card .ic { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: rgba(43,179,230,.12); color: var(--accent); }
.card .ic svg { width: 20px; height: 20px; }
.card.stripe { border-left: 3px solid var(--accent); }
.card.bad { border-left: 3px solid var(--bad); }

.pill { display: inline-flex; align-items: center; gap: 6px; font: 600 12px/1 var(--body); padding: 5px 9px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--mute); white-space: nowrap; }
.pill i { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.pill.hot { color: var(--hot); border-color: rgba(255,107,74,.35); background: rgba(255,107,74,.08); }
.pill.warm { color: var(--warm); border-color: rgba(245,185,66,.35); background: rgba(245,185,66,.08); }
.pill.cold { color: var(--cold); border-color: rgba(107,140,255,.35); background: rgba(107,140,255,.08); }
.pill.sched { color: var(--sched); border-color: rgba(177,140,255,.35); background: rgba(177,140,255,.08); }
.pill.ok { color: var(--ok); border-color: rgba(47,208,138,.35); background: rgba(47,208,138,.08); }
.pill.bad { color: var(--bad); border-color: rgba(255,77,109,.35); background: rgba(255,77,109,.08); }
.pill.acc { color: var(--accent); border-color: rgba(43,179,230,.35); background: rgba(43,179,230,.08); }

/* ---------- fluxo animado ---------- */
.flow { position: relative; display: grid; grid-template-columns: repeat(8, 1fr); gap: 10px; }
.flow::before { content: ""; position: absolute; left: 4%; right: 4%; top: 31px; height: 2px; background: linear-gradient(90deg, var(--accent-2), var(--accent), var(--ok)); opacity: .45; }
.flow .packet { position: absolute; top: 26px; left: 4%; width: 12px; height: 12px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 4px rgba(43,179,230,.25), 0 0 18px var(--accent); animation: packet 9s linear infinite; }
.flow .packet.p2 { animation-delay: -3s; } .flow .packet.p3 { animation-delay: -6s; }
@keyframes packet { from { left: 4%; background: var(--cold); } 45% { background: var(--warm); } 75% { background: var(--hot); } to { left: 95%; background: var(--ok); } }
.step { position: relative; display: grid; gap: 8px; justify-items: center; text-align: center; padding-top: 2px; }
.step .bub { width: 62px; height: 62px; border-radius: 16px; display: grid; place-items: center; background: var(--surface-2); border: 1px solid var(--line-2); color: var(--accent); box-shadow: var(--shadow); font: 700 18px/1 var(--display); transition: transform .2s; }
.step:hover .bub { transform: translateY(-3px); border-color: var(--accent); }
.step h4 { font-size: 14px; }
.step p { font-size: 12.5px; color: var(--mute); line-height: 1.45; }

/* ---------- plano ---------- */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font: 600 12px/1.3 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); background: var(--surface-2); position: sticky; top: 0; }
tr:last-child td { border-bottom: 0; }
td code, p code, li code { font: 500 12.5px/1.4 var(--mono); color: var(--steel); background: rgba(201,211,223,.08); padding: 2px 6px; border-radius: 5px; }
.sub-sec { margin-top: 56px; display: grid; gap: 18px; }
.sub-sec > h3 { font-size: 24px; display: flex; gap: 12px; align-items: baseline; }
.sub-sec > h3 .idx { font: 600 13px/1 var(--mono); color: var(--accent); }
.sub-sec > p { color: var(--mute); max-width: 75ch; }
ul.clean { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
ul.clean li { padding-left: 22px; position: relative; color: var(--mute); font-size: 15px; }
ul.clean li::before { content: ""; position: absolute; left: 4px; top: 10px; width: 7px; height: 7px; border-radius: 2px; background: var(--accent); transform: rotate(45deg); }
ul.clean li b { color: var(--ink); font-weight: 600; }

/* arquitetura */
.arch { display: grid; grid-template-columns: 1fr 1.6fr 1fr; gap: 14px; align-items: stretch; }
.arch-col { display: grid; gap: 10px; align-content: start; }
.arch-col > h4 { font: 600 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); padding: 4px 2px; }
.arch-box { background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-size: 14px; display: grid; gap: 2px; }
.arch-box small { color: var(--mute); font-size: 12px; }
.arch-core { border: 1px solid rgba(43,179,230,.4); border-radius: var(--r); padding: 14px; background: radial-gradient(500px 200px at 50% 0%, rgba(43,179,230,.12), transparent), var(--surface); display: grid; gap: 10px; }
.arch-core .row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.arch-core .arch-box { border-color: rgba(43,179,230,.25); }
.arch-core .arch-box.new { border-style: dashed; border-color: var(--ok); }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; color: var(--mute); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 14px; height: 10px; border-radius: 3px; border: 1px solid rgba(43,179,230,.5); }
.legend i.new { border: 1px dashed var(--ok); }
.legend i.reuse { background: rgba(201,211,223,.18); border-color: var(--steel); }

/* escada da compra */
.ladder { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; counter-reset: lad; }
.rung { position: relative; border-radius: var(--r); padding: 18px; border: 1px solid var(--line); background: var(--surface); display: grid; gap: 8px; align-content: start; }
.rung::after { content: "→"; position: absolute; right: -12px; top: 22px; color: var(--faint); font-size: 18px; }
.rung:last-child::after { display: none; }
.rung h4 { display: flex; align-items: center; gap: 8px; }
.rung p { color: var(--mute); font-size: 14px; }
.rung .meta { font: 500 12px/1.4 var(--mono); color: var(--steel); }

/* roadmap */
.timeline { display: grid; gap: 12px; }
.phase { display: grid; grid-template-columns: 120px 1fr; gap: 18px; padding: 18px; border-radius: var(--r); border: 1px solid var(--line); background: var(--surface); }
.phase .when { font: 600 13px/1.4 var(--mono); color: var(--accent); display: grid; gap: 6px; align-content: start; }
.phase .when .bar { height: 6px; border-radius: 4px; background: linear-gradient(90deg, var(--accent-2), var(--accent)); }
.phase h4 { font-size: 17px; margin-bottom: 6px; }
.phase .cols { display: grid; grid-template-columns: 1.3fr 1fr; gap: 18px; }
.phase .cols > div > b { display: block; font: 600 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); margin-bottom: 8px; }

/* planos comerciais */
.plan { display: grid; gap: 14px; align-content: start; padding: 26px; border-radius: 18px; border: 1px solid var(--line); background: var(--surface); }
.plan.feat { border-color: rgba(43,179,230,.55); background: radial-gradient(400px 220px at 50% 0, rgba(43,179,230,.14), transparent), var(--surface); box-shadow: 0 30px 70px -40px rgba(43,179,230,.6); }
.plan .price { font: 800 34px/1 var(--display); }
.plan .price small { font: 500 14px var(--body); color: var(--mute); }

footer { padding: 56px 0 80px; color: var(--faint); font-size: 13px; border-top: 1px solid var(--line); margin-top: 64px; }
.note { font-size: 13px; color: var(--faint); }

@media (max-width: 980px) {
  .hero .wrap { grid-template-columns: 1fr; min-height: 0; }
  .ticker { justify-self: start; }
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .g3 { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: repeat(4, 1fr); row-gap: 24px; }
  .flow::before, .flow .packet { display: none; }
  .arch { grid-template-columns: 1fr; }
  .ladder { grid-template-columns: 1fr 1fr; }
  .rung::after { display: none; }
  .phase .cols { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  section { padding-top: 64px; }
  .nav { display: none; }
  .g2, .g3, .g4, .ladder { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .phase { grid-template-columns: 1fr; }
  .arch-core .row { grid-template-columns: 1fr; }
  .topbar .wrap { gap: 10px; }
  .topbar .btn { margin-left: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html:not(.anim) *, html:not(.anim) *::before, html:not(.anim) *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}