@font-face {
  font-family: "Instrument Sans";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/InstrumentSans-latin.woff2") format("woff2");
}

/* Advata: light and dark themes, no external requests. */
:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --ink: #14121a;
  --muted: #55525c;
  --line: #e4dccb;
  --accent: #c2410c;
  --accent-2: #b45309;
  --accent-soft: #fdebdd;
  --glow: rgba(194, 65, 12, 0.18);
  --dot: rgba(20, 18, 26, 0.08);
  --node-a: #c2410c;
  --node-b: #fb923c;
  --btn-ink: #ffffff;
  --head-bg: #ffffff;
  --foot-bg: transparent;
  --foot-ink: #7a746a;
  --foot-strong: #6a6459;
  --sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #100e14;
    --surface: #1a1720;
    --ink: #f4f1ec;
    --muted: #b3aeb8;
    --line: #2b2733;
    --accent: #fb923c;
    --accent-2: #fdba74;
    --accent-soft: #2a1a12;
    --glow: rgba(251, 146, 60, 0.28);
    --dot: rgba(244, 241, 236, 0.07);
    --node-a: #fb923c;
    --node-b: #fcd34d;
    --btn-ink: #14121a;
    --head-bg: #100e14;
    --foot-bg: transparent;
    --foot-ink: #a49fa9;
    --foot-strong: #cfcad2;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #100e14;
  --surface: #1a1720;
  --ink: #f4f1ec;
  --muted: #b3aeb8;
  --line: #2b2733;
  --accent: #fb923c;
  --accent-2: #fdba74;
  --accent-soft: #2a1a12;
  --glow: rgba(251, 146, 60, 0.28);
  --dot: rgba(244, 241, 236, 0.07);
  --node-a: #fb923c;
  --node-b: #fcd34d;
  --btn-ink: #14121a;
  --head-bg: #100e14;
  --foot-bg: transparent;
  --foot-ink: #a49fa9;
  --foot-strong: #cfcad2;
  color-scheme: dark;
}
:root[data-theme="light"] { color-scheme: light; }

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background-color: var(--bg);
  background-image: radial-gradient(var(--dot) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-font-smoothing: antialiased;
}
.wrap { width: min(1120px, 100% - 40px); margin-inline: auto; }
.narrow { max-width: 720px; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent-2); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* Header */
.top {
  position: sticky; top: 0; z-index: 10;
  background: var(--head-bg);
  border-bottom: 1px solid var(--line);
}
.top-row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 1.2rem; letter-spacing: -0.02em; }
.brand:hover { color: var(--ink); }
.brand { gap: 2px; align-items: flex-end; font-size: 1.6rem; line-height: 1; padding-top: 18px; height: 64px; padding-bottom: 18px; letter-spacing: -0.045em; font-weight: 700; }
.brand .dot { width: 0.3em; height: 0.3em; border-radius: 50%; background: var(--accent); margin: 0 0 0.12em 1px; }
nav { display: flex; gap: 6px; }
nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; padding: 8px 12px; border-radius: 999px; }
nav a:hover { color: var(--ink); background: var(--accent-soft); }

.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; margin-left: 6px; padding: 0;
  background: transparent; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; cursor: pointer;
}
.theme-toggle:hover { color: var(--ink); background: var(--accent-soft); }
.theme-toggle svg { width: 20px; height: 20px; }
.theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: block; }
:root[data-theme="dark"] .theme-toggle .moon { display: none; }
.nav-wrap { display: flex; align-items: center; }

/* Hero */
.hero { padding: clamp(48px, 9vw, 110px) 0 clamp(40px, 7vw, 90px); }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: center; }
.tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-soft);
  padding: 6px 12px; border-radius: 999px; margin: 0 0 22px;
}
.tag::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--node-b); box-shadow: 0 0 0 4px var(--glow); }
h1 { font-size: clamp(2.5rem, 6.4vw, 4.6rem); line-height: 1.04; letter-spacing: -0.04em; margin: 0 0 22px; font-weight: 700; }
h1 .grad {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.lead { font-size: clamp(1.1rem, 2vw, 1.3rem); color: var(--muted); max-width: 34em; margin: 0 0 32px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  display: inline-block; background: var(--accent); color: var(--btn-ink);
  padding: 14px 26px; border-radius: 12px; font-weight: 650; text-decoration: none;
  box-shadow: 0 10px 30px -10px var(--glow), 0 2px 0 rgba(255, 255, 255, 0.15) inset;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.button:hover { color: var(--btn-ink); transform: translateY(-2px); box-shadow: 0 16px 36px -10px var(--glow); }
.button.ghost { background: transparent; color: var(--ink); box-shadow: none; border: 1px solid var(--line); }
.button.ghost:hover { color: var(--ink); background: var(--accent-soft); }

/* Hero graphic */
.viz { width: 100%; height: auto; display: block; }
.viz .edge { stroke: var(--line); stroke-width: 1.5; fill: none; }
.viz .edge.hot { stroke: url(#edgeGrad); stroke-width: 2; }
.viz .n1 { fill: var(--node-a); }
.viz .n2 { fill: var(--node-b); }
.viz .n3 { fill: var(--surface); stroke: var(--line); stroke-width: 1.5; }
.viz .ring { fill: none; stroke: var(--node-a); stroke-opacity: 0.35; transform-box: fill-box; transform-origin: center; }
.viz .g1 { stop-color: var(--node-a); }
.viz .g2 { stop-color: var(--node-b); }
.viz .panel { fill: var(--surface); stroke: var(--line); stroke-width: 1.5; }
.viz .bar { fill: var(--accent-soft); }
.viz .bar.on { fill: var(--node-a); }
.viz .txt { font-family: var(--mono); font-size: 11px; fill: var(--muted); }

/* Sections */
.section { padding: clamp(48px, 8vw, 96px) 0; }
.eyebrow { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin: 0 0 10px; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); line-height: 1.12; letter-spacing: -0.03em; margin: 0 0 14px; font-weight: 700; }
.sub { color: var(--muted); max-width: 40em; margin: 0 0 40px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 18px;
  padding: 28px; position: relative; overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.card::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--node-a), var(--node-b)); opacity: 0; transition: opacity 0.25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 24px 50px -24px var(--glow); border-color: var(--accent); }
.card:hover::after { opacity: 1; }
.num { font-family: var(--mono); font-size: 0.85rem; color: var(--accent); margin: 0 0 18px; }
.card h3 { font-size: 1.3rem; letter-spacing: -0.02em; margin: 0 0 10px; }
.card p { margin: 0; color: var(--muted); }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: s; }
.step { border-top: 2px solid var(--line); padding-top: 20px; }
.step .num { margin-bottom: 8px; }
.step h3 { font-size: 1.2rem; margin: 0 0 8px; letter-spacing: -0.02em; }
.step p { margin: 0; color: var(--muted); }

.band { background: color-mix(in srgb, var(--surface) 70%, transparent); border-block: 1px solid var(--line); }

.contact-box {
  background: var(--surface); border: 1px solid var(--line); border-radius: 24px;
  padding: clamp(28px, 5vw, 56px); text-align: center;
  background-image: radial-gradient(60% 120% at 50% 0%, var(--accent-soft), transparent 70%);
}
.contact-box p { color: var(--muted); max-width: 32em; margin: 0 auto 26px; }

/* Footer */
.foot { background: var(--foot-bg); border-top: 1px solid var(--line); padding: 40px 0 48px; font-size: 0.875rem; color: var(--foot-ink); }
.foot a { color: var(--foot-ink); }
.foot a:hover { color: var(--accent); }
.foot-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 32px; }
.foot p { margin: 0 0 10px; }
.foot strong { color: var(--foot-strong); font-weight: 600; }
.copy { font-family: var(--mono); font-size: 0.8rem; }

/* Motion (CSS only, off for reduced motion) */
@media (prefers-reduced-motion: no-preference) {
  .hero-grid > * { animation: rise 0.8s cubic-bezier(.2,.7,.2,1) both; }
  .hero-grid > *:nth-child(2) { animation-delay: 0.12s; }
  .viz .ring { animation: pulse 3.6s ease-in-out infinite; }
  .viz .r2 { animation-delay: 1.2s; }
  .viz .r3 { animation-delay: 2.4s; }
}
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes pulse { 0%, 100% { transform: scale(1); opacity: 0.9; } 50% { transform: scale(1.7); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

/* Phones and small screens */
@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
  .hero-grid, .foot-grid { grid-template-columns: 1fr; }
  .viz { max-width: 420px; margin-inline: auto; }
  .steps { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .grid { grid-template-columns: 1fr; }
  nav a { padding: 8px 9px; font-size: 0.9rem; }
  nav a.opt { display: none; }
  .button { width: 100%; text-align: center; padding-inline: 12px; overflow-wrap: anywhere; }
  .contact-box .button { font-size: 0.95rem; }
}