:root {
  --paper: #0d1015;
  --panel: #151a22;
  --ink: #e8ecf1;
  --ink-soft: #aab3c0;
  --muted: #6f7887;
  --hair: #232a35;
  --accent: #2dd4bf;
  --accent-soft: rgba(45, 212, 191, 0.14);
  --radius: 10px;
  --radius-sm: 7px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  line-height: 1.55;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* ---------------------------------- nav ---------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(13, 16, 21, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hair);
}

.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  margin-right: auto;
}

.brand__mark { width: 26px; height: 26px; color: var(--ink); flex-shrink: 0; }
.brand__dot { fill: var(--accent); }

.brand__word {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.nav__links {
  display: flex;
  gap: 26px;
  font-size: 14.5px;
  font-weight: 500;
}
.nav__links a { text-decoration: none; color: var(--ink-soft); transition: color .15s ease; }
.nav__links a:hover { color: var(--accent); }

.nav__meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 11.5px;
  color: var(--muted);
  white-space: nowrap;
}

@media (max-width: 720px) {
  .nav__meta { display: none; }
  .nav__links { gap: 16px; font-size: 13.5px; }
}

/* ---------------------------------- hero ---------------------------------- */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.hero {
  padding: 64px 0 8px;
  background-image: radial-gradient(circle, var(--hair) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: -6px -6px;
}

.hero__lead { max-width: 760px; padding-bottom: 40px; }

.eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 16px;
}

h1 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}

.hero__intro {
  font-size: 1.075rem;
  color: var(--ink-soft);
  margin: 0 0 30px;
  max-width: 58ch;
}

.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  font-family: "Inter", sans-serif;
  font-weight: 600;
  font-size: 14.5px;
  padding: 11px 20px;
  border-radius: 100px;
  text-decoration: none;
  transition: all .15s ease;
  border: 1px solid transparent;
}
.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary:hover { background: var(--accent); }
.btn--ghost { border-color: var(--hair); color: var(--ink); background: var(--panel); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

/* signature trace */
.trace {
  margin: 8px 0 0;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 18px 20px 12px;
  overflow: hidden;
}
.trace svg { width: 100%; height: 170px; display: block; }
.trace__grid line { stroke: var(--hair); stroke-width: 1; }
.trace__line {
  fill: none; stroke: var(--ink); stroke-width: 2;
  stroke-linejoin: round; stroke-linecap: round;
  stroke-dasharray: 4200; stroke-dashoffset: 4200;
  animation: draw 2.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.trace__spike {
  fill: var(--accent); opacity: 0;
  animation: pop 0.5s ease-out 1.9s forwards, pulse 2.4s ease-in-out 2.4s infinite;
}
.trace figcaption {
  display: flex; justify-content: space-between; margin-top: 10px;
  font-family: "JetBrains Mono", monospace; font-size: 11px;
}
.trace__label { color: var(--muted); }
.trace__cap { color: var(--accent); }

@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pop { from { opacity: 0; transform: scale(0); } to { opacity: 1; transform: scale(1); } }
@keyframes pulse { 0%, 100% { r: 5; opacity: 1; } 50% { r: 7; opacity: 0.6; } }

/* ------------------------------- principles ------------------------------- */
.principles { padding: 76px 0 12px; }
.principles__head { max-width: 560px; margin-bottom: 36px; }
.principles__head h2 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.6rem; font-weight: 700; letter-spacing: -0.015em; margin: 0;
}

.principles__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 28px;
}

.principle { padding-right: 12px; }
.principle__icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; margin-bottom: 16px; color: var(--ink);
}
.principle__icon svg { width: 26px; height: 26px; }
.principle h3 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.05rem; font-weight: 700; margin: 0 0 8px; letter-spacing: -0.01em;
}
.principle p { font-size: 0.94rem; color: var(--ink-soft); margin: 0; max-width: 42ch; }

/* ---------------------------------- grid ---------------------------------- */
.grid { padding: 76px 0 64px; }
.grid__head {
  display: flex; align-items: flex-end; justify-content: space-between;
  border-bottom: 1px solid var(--hair);
  padding-bottom: 18px; margin-bottom: 28px;
}
.grid__head h2 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.6rem; font-weight: 700; letter-spacing: -0.015em; margin: 4px 0 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
}

.card {
  display: flex; flex-direction: column; gap: 10px;
  padding: 22px 22px 20px;
  background: var(--panel);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  text-decoration: none; color: inherit;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 10px 26px -14px rgba(0, 0, 0, 0.65); }
.card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.card__tag { font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.04em; color: var(--muted); }
.card__title { font-family: "Space Grotesk", sans-serif; font-size: 1.15rem; font-weight: 700; margin: 0; letter-spacing: -0.01em; }
.card__blurb { font-size: 0.9rem; color: var(--ink-soft); margin: 0; flex-grow: 1; }

.badge {
  align-self: flex-start; font-family: "JetBrains Mono", monospace;
  font-size: 10.5px; letter-spacing: 0.04em; padding: 4px 9px;
  border-radius: 100px; margin-top: 4px;
}
.badge--live { background: var(--accent-soft); color: var(--accent); }
.badge--static { background: #1c212b; color: var(--muted); }
.badge--down { background: #1c212b; color: var(--muted); }
.card--down { opacity: 0.62; cursor: default; }
.card--down:hover { transform: none; border-color: var(--hair); box-shadow: none; }

/* --------------------------------- legal --------------------------------- */
.legal {
  max-width: 68ch;
  margin: 0 auto;
  padding: 56px 0 80px;
}
.legal h1 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 2rem;
  letter-spacing: -0.02em;
  margin: 4px 0 28px;
}
.legal h2 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  margin: 32px 0 10px;
}
.legal p {
  font-size: 0.96rem;
  color: var(--ink-soft);
  margin: 0 0 14px;
}

/* --------------------------------- footer --------------------------------- */
.foot { border-top: 1px solid var(--hair); margin-top: 12px; }
.foot__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 48px 24px 32px;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px;
}
.foot__inner--2col { grid-template-columns: 2fr 1fr; }
.brand__word--foot { font-size: 16px; }
.foot__note { font-size: 0.85rem; color: var(--muted); margin: 10px 0 0; max-width: 46ch; }
.foot__col h4 {
  font-family: "JetBrains Mono", monospace; font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted);
  margin: 0 0 12px;
}
.foot__col a { display: block; font-size: 0.9rem; color: var(--ink-soft); text-decoration: none; margin-bottom: 8px; }
.foot__col a:hover { color: var(--accent); }

.foot__bar {
  border-top: 1px solid var(--hair);
  padding: 16px 24px;
}
.foot__bar p {
  max-width: var(--maxw); margin: 0 auto;
  font-family: "JetBrains Mono", monospace; font-size: 11px; color: var(--muted);
}

@media (max-width: 640px) {
  .foot__inner { grid-template-columns: 1fr; gap: 24px; }
  .hero { padding: 44px 0 8px; }
  .trace svg { height: 130px; }
  .principles { padding: 56px 0 8px; }
  .grid { padding: 56px 0 48px; }
}

@media (prefers-reduced-motion: reduce) {
  .trace__line { animation: none; stroke-dashoffset: 0; }
  .trace__spike { animation: none; opacity: 1; }
}