/* ============ MachReach landing — design tokens ============ */

:root {
  /* type */
  --font-display: "Bricolage Grotesque", sans-serif;
  --font-body: "Nunito", sans-serif;
  --font-mono: "Nunito", sans-serif;

  /* base — light theme by default */
  --bg: oklch(0.985 0.005 80);
  --bg-2: oklch(0.96 0.01 80);
  --surface: #ffffff;
  --ink: oklch(0.18 0.02 270);
  --ink-2: oklch(0.42 0.02 270);
  --ink-3: oklch(0.62 0.02 270);
  --line: oklch(0.88 0.01 80);
  --line-2: oklch(0.78 0.01 80);

  /* brand — coral default */
  --brand: oklch(0.73 0.22 38);
  --brand-ink: oklch(0.34 0.12 38);
  --brand-soft: oklch(0.94 0.075 38);
  --accent: oklch(0.84 0.19 130);
  --accent-ink: oklch(0.30 0.10 130);
  --secondary: oklch(0.74 0.17 58);
  --secondary-soft: oklch(0.95 0.055 58);

  /* semantic */
  --gold: oklch(0.84 0.16 85);
  --silver: oklch(0.78 0.02 250);
  --bronze: oklch(0.68 0.12 50);
  --good: oklch(0.72 0.16 155);
  --bad: oklch(0.65 0.20 25);

  /* layout */
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --shadow-sm: 0 2px 0 0 var(--ink);
  --shadow:    0 4px 0 0 var(--ink);
  --shadow-lg: 0 6px 0 0 var(--ink);

  --container: 1200px;
}

[data-theme="dark"] {
  --bg: oklch(0.16 0.02 270);
  --bg-2: oklch(0.20 0.02 270);
  --surface: oklch(0.22 0.02 270);
  --ink: oklch(0.97 0.01 80);
  --ink-2: oklch(0.78 0.02 270);
  --ink-3: oklch(0.60 0.02 270);
  --line: oklch(0.32 0.02 270);
  --line-2: oklch(0.42 0.02 270);
  --brand-soft: oklch(0.30 0.09 38);
  --secondary-soft: oklch(0.30 0.06 290);
}

[data-accent="lime"]   { --brand: oklch(0.84 0.18 130); --brand-ink: oklch(0.32 0.10 130); --brand-soft: oklch(0.95 0.07 130); }
[data-accent="violet"] { --brand: oklch(0.66 0.20 290); --brand-ink: oklch(0.30 0.12 290); --brand-soft: oklch(0.94 0.05 290); }
[data-accent="sky"]    { --brand: oklch(0.74 0.15 240); --brand-ink: oklch(0.32 0.10 240); --brand-soft: oklch(0.95 0.05 240); }
[data-accent="coral"]  { --brand: oklch(0.73 0.22 38);  --brand-ink: oklch(0.34 0.12 38);  --brand-soft: oklch(0.94 0.075 38); }

/* ============ reset ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.55;
  font-weight: 500;
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 800; letter-spacing: -0.02em; line-height: 1.05; }

/* ============ utilities ============ */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--brand-ink);
  background: var(--brand-soft);
  padding: 8px 14px; border-radius: 999px;
  border: 2px solid var(--brand);
}
.eyebrow .dot { width: 8px; height: 8px; border-radius: 999px; background: var(--brand); }

/* button system */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-display); font-weight: 800; font-size: 17px;
  padding: 14px 26px;
  border-radius: 16px;
  border: 2px solid var(--ink);
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--brand); color: white; box-shadow: var(--shadow); }
.btn-primary:hover { transform: translate(-1px, -1px); box-shadow: 0 5px 0 0 var(--ink); }
.btn-primary:active { transform: translate(0, 4px); box-shadow: 0 0 0 0 var(--ink); }
.btn-ghost { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }
.btn-ghost:hover { transform: translate(-1px, -1px); box-shadow: var(--shadow); background: var(--bg-2); }
.btn-lg { font-size: 19px; padding: 18px 32px; border-radius: 18px; }
.btn-sm { font-size: 14px; padding: 8px 16px; border-radius: 12px; }

/* card */
.card {
  background: var(--surface);
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.card-soft {
  background: var(--surface);
  border: 2px solid var(--line);
  border-radius: var(--radius-lg);
}

/* section */
section { padding: 96px 0; }
.section-head { text-align: center; max-width: 780px; margin: 0 auto 56px; }
.section-head h2 { font-size: clamp(34px, 5vw, 56px); margin-top: 14px; }
.section-head p { color: var(--ink-2); font-size: 19px; margin-top: 16px; }

/* nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--bg) 80%, transparent);
  border-bottom: 2px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-weight: 700; font-size: 15px; color: var(--ink-2); }
.nav-links a:hover { color: var(--ink); }

/* logo */
.logo { display: inline-flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 36px; height: 36px;
  display: grid; place-items: center;
}
.logo-mark img { width: 100%; height: 100%; display: block; }
.logo-text { font-family: var(--font-display); font-weight: 800; font-size: 22px; letter-spacing: -0.02em; }
.logo-text .dot { color: var(--brand); }

/* footer */
footer { padding: 64px 0 40px; border-top: 2px solid var(--line); margin-top: 64px; }

/* small bits */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: 999px;
  background: var(--bg-2); border: 1.5px solid var(--line);
  color: var(--ink-2);
  text-transform: uppercase; letter-spacing: 0.08em;
}

@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 color-mix(in oklab, var(--brand) 50%, transparent); }
  70%  { box-shadow: 0 0 0 12px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
@keyframes count-up { from { transform: translateY(8px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.fade-up { animation: count-up .5s ease both; }

/* responsive */
@media (max-width: 760px) {
  section { padding: 64px 0; }
  .nav-links { display: none; }
}