/* ==========================================================================
   PREP · PUBLIC PAGES

   Standalone stylesheet for the landing and careers pages. Deliberately not
   shared with the app's CSS: these pages are what an unauthenticated visitor
   and a search crawler load, so pulling in the whole application stylesheet
   would cost them a large download for a handful of components.
   ========================================================================== */

:root {
  color-scheme: dark;
  --bg: #0b0f17;
  --bg2: #0e1420;
  --panel: #131a28;
  --panel2: #182137;
  --line: #243049;
  --line2: #2e3b57;
  --ink: #e8eef9;
  --ink2: #a9b6ce;
  --muted: #71809b;
  --primary: #5b9bff;
  --purple: #b98cff;
  --ok: #3fd37c;
  --sans: 'Fira Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --wrap: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ------------------------------------------------------------------- nav */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 20px 24px;
  flex-wrap: wrap;
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  font-size: 19px;
}
.nav__brand:hover {
  text-decoration: none;
}
.nav__brand svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.nav nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14.5px;
}
.nav nav a {
  color: var(--ink2);
}
.nav nav a:hover {
  color: var(--ink);
}

/* ---------------------------------------------------------------- button */

.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  color: #fff;
  font-weight: 600;
  font-size: 14.5px;
  border: 1px solid transparent;
  transition:
    transform 0.18s var(--ease),
    filter 0.18s var(--ease);
}
.btn:hover {
  text-decoration: none;
  filter: brightness(1.08);
  transform: translateY(-1px);
}
.btn--lg {
  padding: 14px 26px;
  font-size: 16px;
  border-radius: 13px;
}
.btn--ghost {
  background: transparent;
  border-color: var(--line2);
  color: var(--ink);
}
.btn--ghost:hover {
  border-color: var(--primary);
  filter: none;
}

/* ------------------------------------------------------------------ hero */

main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.hero {
  padding: 72px 0 56px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(38px, 7vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  font-weight: 700;
}
.grad {
  background: linear-gradient(135deg, var(--primary), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--ink2);
  max-width: 640px;
  margin: 0 auto 30px;
}
.cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.hint {
  color: var(--muted);
  font-size: 13.5px;
  margin-top: 18px;
}

/* ----------------------------------------------------------------- strip */

.strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  margin: 20px 0 64px;
}
.strip div {
  background: var(--panel);
  padding: 24px 18px;
  text-align: center;
}
.strip strong {
  display: block;
  font-size: 26px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--ok));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.strip span {
  display: block;
  color: var(--muted);
  font-size: 12.5px;
  margin-top: 4px;
  letter-spacing: 0.02em;
}

/* ------------------------------------------------------------------ band */

.band {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}
.band--alt {
  background:
    radial-gradient(900px 340px at 80% 0%, rgba(91, 155, 255, 0.07), transparent 70%),
    transparent;
}
.band h2 {
  font-size: clamp(25px, 3.6vw, 34px);
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}
.sub {
  color: var(--ink2);
  max-width: 760px;
  margin: 0 0 28px;
  font-size: 16.5px;
}
.sub.small {
  font-size: 14.5px;
  color: var(--muted);
}
.more {
  margin-top: 26px;
}

/* ---------------------------------------------------------------- tracks */

.tracks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}
.track {
  display: block;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  color: inherit;
  transition:
    border-color 0.18s var(--ease),
    transform 0.18s var(--ease);
}
.track:hover {
  text-decoration: none;
  border-color: var(--primary);
  transform: translateY(-2px);
}
.track h3 {
  margin: 0 0 8px;
  font-size: 17px;
}
.track p {
  margin: 0;
  color: var(--ink2);
  font-size: 14px;
}
.track__certs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.track__certs span {
  font-size: 11.5px;
  color: var(--muted);
  border: 1px solid var(--line2);
  border-radius: 999px;
  padding: 3px 9px;
}

/* --------------------------------------------------------------- feature */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}
.grid h3 {
  margin: 0 0 6px;
  font-size: 17px;
}
.grid p {
  margin: 0;
  color: var(--ink2);
  font-size: 14.5px;
}

.points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
  max-width: 820px;
}
.points li {
  color: var(--ink2);
  padding-left: 20px;
  position: relative;
  font-size: 15.5px;
}
.points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--purple));
}
.points strong {
  color: var(--ink);
}

/* --------------------------------------------------------- careers page */

.page-head {
  padding: 56px 0 30px;
}
.page-head h1 {
  font-size: clamp(32px, 5vw, 48px);
  margin: 0 0 14px;
  letter-spacing: -0.02em;
}
.page-head .lede {
  margin: 0 0 10px;
  text-align: left;
}

.jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 10px;
}
.jump a {
  font-size: 13px;
  color: var(--ink2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 13px;
}
.jump a:hover {
  text-decoration: none;
  border-color: var(--primary);
  color: var(--ink);
}

.tracks-full {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}
.track-full {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  /* Anchored links land under the sticky-free header with breathing room. */
  scroll-margin-top: 24px;
}
.track-full h3 {
  margin: 0 0 8px;
  font-size: 18px;
}
.track-full__blurb {
  margin: 0 0 14px;
  color: var(--ink2);
  font-size: 14.5px;
}
.track-full__label {
  margin: 14px 0 4px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.track-full__list {
  margin: 0;
  color: var(--ink2);
  font-size: 13.5px;
}
.certs {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 5px;
}
.certs li {
  font-size: 13.5px;
  color: var(--ink2);
}

.checksum {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 12.5px;
  color: var(--ink2);
  margin: 0;
}
.checksum code {
  font-family: ui-monospace, 'Cascadia Code', 'Fira Mono', Consolas, monospace;
  white-space: pre;
}
.certs strong {
  color: var(--ink);
  font-weight: 600;
  margin-right: 6px;
}

/* ----------------------------------------------------------------- close */

.close {
  text-align: center;
  padding: 72px 0 84px;
  border-top: 1px solid var(--line);
}
.close h2 {
  font-size: clamp(26px, 4vw, 36px);
  margin: 0 0 10px;
}
.close p {
  color: var(--ink2);
  margin: 0 0 26px;
}

/* ---------------------------------------------------------------- footer */

.foot {
  border-top: 1px solid var(--line);
  background: var(--bg2);
  padding: 40px 24px 28px;
}
.foot__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.foot__inner strong {
  display: block;
  margin-bottom: 6px;
}
.foot__inner p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  max-width: 320px;
}
.foot__inner nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: flex-start;
  font-size: 14px;
}
.foot__inner nav a {
  color: var(--ink2);
}
.foot__note {
  max-width: var(--wrap);
  margin: 26px auto 0;
  color: var(--muted);
  font-size: 13px;
}

/* ------------------------------------------------------------ responsive */

@media (max-width: 720px) {
  .strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav {
    padding: 16px;
  }
  .nav nav {
    gap: 14px;
    font-size: 14px;
  }
  main {
    padding: 0 16px;
  }
  .hero {
    padding: 48px 0 40px;
  }
}

/* Respect a stated preference for less motion rather than assuming everyone
   enjoys things sliding around. */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition: none !important;
  }
}