/* ============================================================
   LED Matrix Ticker — landing page
   Control-room dark · hot-red LED accent · dot-grid atmosphere
   ============================================================ */

:root {
  --bg:        #0a0a0b;
  --bg-soft:   #0e0e10;
  --surface:   #141416;
  --surface-2: #19191c;
  --line:      #26262b;
  --line-soft: #1d1d21;
  --ink:       #f4f4f3;
  --ink-mid:   #b7b7bd;
  --ink-dim:   #76767e;
  --led:       #ff2f2f;
  --led-soft:  #ff5a4d;
  --led-deep:  #7f1414;
  --glow:      0 0 22px rgba(255, 47, 47, .55);

  --display: "Bricolage Grotesque", "Hanken Grotesk", sans-serif;
  --body:    "Hanken Grotesk", system-ui, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, monospace;

  --maxw: 1160px;
  --pad: clamp(20px, 5vw, 72px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  /* faint dot-matrix grid baked into the page */
  background-image:
    radial-gradient(circle at center, rgba(255,255,255,.022) 1px, transparent 1.4px);
  background-size: 22px 22px;
  background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }

code, pre { font-family: var(--mono); }

/* film grain overlay */
.grain {
  position: fixed; inset: 0; z-index: 9; pointer-events: none;
  opacity: .04; mix-blend-mode: screen;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- shared layout ---------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(72px, 12vw, 140px) var(--pad);
}
.section__head { max-width: 720px; margin-bottom: clamp(40px, 6vw, 64px); }
.kicker {
  font-family: var(--mono);
  font-size: .8rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--led-soft); margin-bottom: 18px;
}
.section__head h2 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  line-height: 1.04; letter-spacing: -.02em;
}
.section__sub { color: var(--ink-mid); margin-top: 18px; font-size: 1.12rem; max-width: 56ch; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px var(--pad);
  background: rgba(10,10,11,.72);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
}
.nav__brand {
  font-family: var(--mono); font-weight: 700;
  font-size: .9rem; letter-spacing: .02em;
  display: flex; align-items: center; gap: 10px;
}
.nav__dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--led); box-shadow: var(--glow);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }
.nav__links { display: flex; align-items: center; gap: clamp(14px, 2.4vw, 30px); }
.nav__links a {
  font-size: .92rem; color: var(--ink-mid);
  transition: color .2s ease;
}
.nav__links a:hover { color: var(--ink); }
.nav__gh {
  font-family: var(--mono); font-size: .82rem !important;
  padding: 7px 14px; border: 1px solid var(--line);
  border-radius: 999px; color: var(--ink) !important;
}
.nav__gh:hover { border-color: var(--led-deep); background: rgba(255,47,47,.06); }
@media (max-width: 620px) {
  .nav__links a:not(.nav__gh) { display: none; }
}

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero__glow {
  position: absolute; z-index: 0;
  top: -10%; right: -5%; width: 70vw; height: 70vw; max-width: 760px; max-height: 760px;
  background: radial-gradient(circle, rgba(255,47,47,.20), rgba(255,47,47,.05) 42%, transparent 66%);
  filter: blur(20px); pointer-events: none;
}
.hero__inner {
  position: relative; z-index: 1;
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(56px, 9vw, 110px) var(--pad) clamp(40px, 7vw, 80px);
  display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(30px, 5vw, 60px);
  align-items: center;
}
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__shot { order: -1; }
}

.eyebrow {
  font-family: var(--mono); font-size: .82rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-dim);
  display: inline-flex; align-items: center; gap: 9px; margin-bottom: 26px;
}
.eyebrow__live { color: var(--led); font-size: .7rem; animation: pulse 2s ease-in-out infinite; }

.hero__title {
  font-family: var(--display); font-weight: 800;
  font-size: clamp(2.6rem, 7.4vw, 4.9rem);
  line-height: .98; letter-spacing: -.03em;
}
.glow-text { color: var(--led); text-shadow: 0 0 28px rgba(255,47,47,.55); }

.hero__lede {
  color: var(--ink-mid); font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  max-width: 50ch; margin-top: 26px;
}

.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn {
  font-family: var(--mono); font-size: .9rem; font-weight: 500;
  padding: 13px 24px; border-radius: 999px;
  border: 1px solid transparent; transition: transform .18s ease, background .2s ease, border-color .2s ease;
}
.btn--primary {
  background: var(--led); color: #1a0303; font-weight: 700;
  box-shadow: 0 0 0 rgba(255,47,47,0);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255,47,47,.35); }
.btn--ghost { border-color: var(--line); color: var(--ink); }
.btn--ghost:hover { border-color: var(--led-deep); background: rgba(255,47,47,.06); transform: translateY(-2px); }

.badges {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 38px; list-style: none;
}
.badges li {
  font-family: var(--mono); font-size: .76rem; letter-spacing: .04em;
  color: var(--ink-mid);
  padding: 6px 13px; border: 1px solid var(--line); border-radius: 7px;
  background: var(--surface);
}

.hero__shot { position: relative; }
.hero__shot img {
  width: 100%; height: auto; display: block; border-radius: 16px;
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px -30px rgba(0,0,0,.9), 0 0 60px -20px rgba(255,47,47,.25);
}
.hero__shot figcaption {
  position: absolute; left: 14px; bottom: 14px;
  font-family: var(--mono); font-size: .72rem; color: var(--ink);
  padding: 7px 12px; border-radius: 8px;
  background: rgba(10,10,11,.7); backdrop-filter: blur(8px);
  border: 1px solid var(--line);
}
.hero__shot figcaption span { color: var(--led-soft); }

/* ---------- feature grid ---------- */
.grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
}
@media (max-width: 860px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .grid { grid-template-columns: 1fr; } }

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: 14px; padding: 28px 24px 26px;
  transition: transform .22s ease, border-color .22s ease, background .22s ease;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, var(--led), transparent);
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--line); background: var(--surface-2); }
.card:hover::before { transform: scaleX(1); }
.card__ix {
  font-family: var(--mono); font-size: .78rem; color: var(--led-deep);
  letter-spacing: .1em;
}
.card h3 {
  font-family: var(--display); font-weight: 700; font-size: 1.32rem;
  margin: 12px 0 9px; letter-spacing: -.01em;
}
.card p { color: var(--ink-mid); font-size: .98rem; }
.card code {
  font-size: .85em; color: var(--led-soft);
  background: rgba(255,47,47,.08); padding: 1px 6px; border-radius: 5px;
}

/* App Store badge — activated at launch (see the commented block in the iOS card) */
.appstore { display: inline-block; margin-top: 16px; line-height: 0;
  transition: transform .18s ease, opacity .2s ease; }
.appstore:hover { transform: translateY(-2px); opacity: .9; }
.appstore__svg { display: block; border-radius: 9px; }

/* ---------- tech ---------- */
.section--tech {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(900px 360px at 80% -10%, rgba(255,47,47,.07), transparent 60%),
    var(--bg-soft);
}
.specs {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: 14px;
  overflow: hidden;
}
@media (max-width: 700px) { .specs { grid-template-columns: 1fr; } }
.spec { background: var(--bg-soft); padding: 30px 28px; }
.spec h3 {
  font-family: var(--display); font-weight: 700; font-size: 1.18rem;
  display: flex; align-items: center; gap: 10px; margin-bottom: 10px;
}
.spec h3::before {
  content: ""; width: 7px; height: 7px; border-radius: 2px;
  background: var(--led); box-shadow: var(--glow);
}
.spec p { color: var(--ink-mid); font-size: .98rem; }
.spec code {
  font-size: .85em; color: var(--led-soft);
  background: rgba(255,47,47,.08); padding: 1px 5px; border-radius: 4px;
}

.reading {
  margin-top: 34px; display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
  font-family: var(--mono); font-size: .9rem;
}
.reading span { color: var(--ink-dim); }
.reading a {
  color: var(--ink); border-bottom: 1px solid var(--led-deep); padding-bottom: 2px;
  transition: color .2s ease, border-color .2s ease;
}
.reading a:hover { color: var(--led-soft); border-color: var(--led); }

/* ---------- build ---------- */
.build__grid {
  display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(24px, 4vw, 44px);
  align-items: start;
}
@media (max-width: 880px) { .build__grid { grid-template-columns: 1fr; } }

.bom table {
  width: 100%; border-collapse: collapse; font-size: .96rem;
  border: 1px solid var(--line-soft); border-radius: 12px; overflow: hidden;
}
.bom thead th {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-dim);
  text-align: left; padding: 14px 16px; background: var(--surface);
  border-bottom: 1px solid var(--line-soft);
}
.bom td {
  padding: 15px 16px; border-bottom: 1px solid var(--line-soft);
  color: var(--ink-mid); vertical-align: top;
}
.bom tbody tr:last-child td { border-bottom: none; }
.bom td:first-child { color: var(--ink); font-weight: 600; white-space: nowrap; }
.bom td:last-child { text-align: right; white-space: nowrap; }
.bom a {
  font-family: var(--mono); font-size: .82rem; color: var(--led-soft);
  border-bottom: 1px solid transparent; transition: border-color .2s ease;
}
.bom a:hover { border-color: var(--led); }
.bom .muted { color: var(--ink-dim); font-family: var(--mono); font-size: .82rem; }

.flash {
  margin-top: 22px; background: var(--surface); border: 1px solid var(--line-soft);
  border-radius: 12px; padding: 22px 22px 20px;
}
.flash__label {
  font-family: var(--mono); font-size: .78rem; color: var(--ink-dim);
  letter-spacing: .06em; margin-bottom: 14px;
}
.flash pre {
  background: #0c0c0e; border: 1px solid var(--line-soft); border-radius: 9px;
  padding: 16px 18px; overflow-x: auto; font-size: .86rem; line-height: 1.7;
  color: var(--ink);
}
.flash pre .c { color: var(--ink-dim); }
.flash__note { color: var(--ink-mid); font-size: .92rem; margin-top: 14px; }
.flash__note a { color: var(--led-soft); border-bottom: 1px solid var(--led-deep); }
.flash__note a:hover { border-color: var(--led); }

.pcb {
  background: var(--surface); border: 1px solid var(--line-soft);
  border-radius: 14px; overflow: hidden;
}
.pcb img { width: 100%; height: auto; display: block; background: #0c0c0e; }
.pcb figcaption {
  font-family: var(--mono); font-size: .78rem; color: var(--ink-dim);
  padding: 14px 18px; border-top: 1px solid var(--line-soft);
}

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line-soft); background: var(--bg-soft); }
.footer__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 40px var(--pad);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px;
}
.footer__brand {
  font-family: var(--mono); font-weight: 700; font-size: .9rem;
  display: flex; align-items: center; gap: 10px;
}
.footer__links { display: flex; flex-wrap: wrap; gap: 22px; }
.footer__links a { font-size: .9rem; color: var(--ink-mid); transition: color .2s ease; }
.footer__links a:hover { color: var(--led-soft); }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); transition-delay: var(--d, 0s); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .nav__dot, .eyebrow__live { animation: none; }
  html { scroll-behavior: auto; }
}