/* Fjell Robotics. Dark, quiet, forward-looking.
   One accent (ice cyan), hairlines, a geometric grotesk and a mono for labels. */

:root {
  --bg: #06080c;
  --bg-2: #0b0f16;
  --fg: #e9eef5;
  --fg-2: rgb(233 238 245 / 0.64);
  --fg-3: rgb(233 238 245 / 0.42);
  --line: rgb(233 238 245 / 0.09);
  --line-2: rgb(233 238 245 / 0.16);
  --accent: #6ff0ff;
  --accent-ink: #04262c;
  --accent-soft: rgb(111 240 255 / 0.14);
  --accent-glow: rgb(111 240 255 / 0.38);
  --danger: #ff7b7b;
  --sans: "Space Grotesk", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 18px;
  --max: 1180px;
  --pad: clamp(20px, 5vw, 72px);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
html, body { min-height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--accent-ink); }

a { color: inherit; }

.mono {
  font-family: var(--mono);
  font-feature-settings: "zero";
}

:is(a, button):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Background layers ---------- */

#hands {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  pointer-events: none;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.7 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  background-size: 180px 180px;
}

main { position: relative; z-index: 2; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
}

/* ---------- Top bar ---------- */

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px var(--pad);
  border-bottom: 1px solid transparent;
  transition: background 0.4s, border-color 0.4s, padding 0.4s;
}

.topbar.is-scrolled {
  padding: 12px var(--pad);
  background: rgb(6 8 12 / 0.72);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mark { display: block; fill: currentColor; }
.mark--small { width: 34px; height: auto; }

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 12px;
  color: var(--fg-2);
}

.toplink {
  color: var(--fg);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  transition: border-color 0.25s, background 0.25s;
}

.toplink:hover {
  border-color: var(--fg-2);
  background: rgb(255 255 255 / 0.04);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-content: center;
  padding: 140px var(--pad) 140px;
}

/* Keeps the headline legible where the hands' forearm reaches behind it. */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(60% 60% at 28% 46%, rgb(6 8 12 / 0.78), transparent 70%);
}

/* Fades the artwork out before the next section starts. */
.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 26vh;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, var(--bg));
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 840px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 28px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-2);
}

.pulse {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.pulse::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  opacity: 0;
  animation: ping 2.4s var(--ease) infinite;
}

@keyframes ping {
  0% { transform: scale(0.4); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}

.headline {
  margin: 0 0 28px;
  font-size: clamp(52px, 9.5vw, 132px);
  line-height: 0.92;
  letter-spacing: -0.035em;
  font-weight: 600;
  text-wrap: balance;
}

.headline em {
  font-style: normal;
  background: linear-gradient(92deg, var(--fg) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  margin: 0 0 40px;
  max-width: 56ch;
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.55;
  color: var(--fg-2);
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 50px;
  padding: 0 24px;
  border-radius: 999px;
  font: 500 15px/1 var(--sans);
  text-decoration: none;
  transition: transform 0.25s var(--ease), box-shadow 0.25s, background 0.25s, border-color 0.25s;
}

.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 40px -8px var(--accent-glow), inset 0 0 0 1px rgb(255 255 255 / 0.25);
}

.btn--ghost {
  color: var(--fg);
  border: 1px solid var(--line-2);
  background: rgb(6 8 12 / 0.8);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.btn--ghost:hover {
  border-color: var(--fg-2);
  background: rgb(11 15 22 / 0.92);
}

.hero-foot {
  position: absolute;
  left: var(--pad);
  right: var(--pad);
  bottom: 28px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-3);
}

.scroll-cue {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.scroll-cue::after {
  content: "";
  width: 36px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  animation: slide 1.8s var(--ease) infinite;
}

@keyframes slide {
  0% { transform: translateX(-6px); opacity: 0; }
  30% { opacity: 1; }
  100% { transform: translateX(10px); opacity: 0; }
}

/* ---------- Sections ---------- */

.work,
.contact {
  position: relative;
  background: var(--bg);
  padding: clamp(80px, 12vh, 140px) var(--pad);
}

.kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  margin: 0;
  font-size: clamp(32px, 4.6vw, 60px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 600;
  text-wrap: balance;
}

.section-head {
  max-width: 720px;
  margin-bottom: 56px;
}

.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.card {
  position: relative;
  background: var(--bg);
  padding: 36px 32px 40px;
  transition: background 0.4s;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  background: radial-gradient(120% 80% at 50% 120%, var(--accent-soft), transparent 60%);
  transition: opacity 0.5s;
}

.card:hover { background: var(--bg-2); }
.card:hover::after { opacity: 1; }

.card-index {
  display: block;
  margin-bottom: 44px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.card h3 {
  margin: 0 0 12px;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0;
  color: var(--fg-2);
}

/* ---------- Contact ---------- */

.contact::before {
  content: "";
  position: absolute;
  right: -20vw;
  top: 10%;
  width: 60vw;
  height: 60vw;
  max-width: 900px;
  max-height: 900px;
  border-radius: 50%;
  background: radial-gradient(closest-side, var(--accent-soft), transparent);
  filter: blur(40px);
  opacity: 0.7;
  pointer-events: none;
}

.contact .wrap {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}

.contact-copy {
  position: sticky;
  top: 120px;
}

.contact-note {
  margin: 22px 0 36px;
  max-width: 46ch;
  font-size: 17px;
  color: var(--fg-2);
}

.contact-note a {
  color: var(--fg);
  text-decoration-color: var(--accent);
  text-underline-offset: 4px;
}

.facts {
  margin: 0;
  display: grid;
  gap: 14px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.facts div {
  display: flex;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.facts dt { min-width: 90px; color: var(--fg-3); }
.facts dd { margin: 0; color: var(--fg); }

/* Glass panel. */
.panel {
  position: relative;
  margin: 0;
  padding: 26px 26px 24px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgb(255 255 255 / 0.05), rgb(255 255 255 / 0.02));
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: 0 40px 100px -30px rgb(0 0 0 / 0.8), inset 0 1px 0 rgb(255 255 255 / 0.07);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: -4px 0 22px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-3);
}

.panel-head span:last-child {
  text-transform: none;
  letter-spacing: 0.06em;
}

.panel-head .dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  vertical-align: 1px;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.field-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-2);
}

.field-input {
  display: block;
  width: 100%;
  margin: 0;
  padding: 14px 16px;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: rgb(255 255 255 / 0.03);
  color: var(--fg);
  font: 400 16px/1.4 var(--sans);
  caret-color: var(--accent);
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.field-input::placeholder { color: var(--fg-3); opacity: 1; }

.field-input:hover { border-color: rgb(233 238 245 / 0.26); }

.field-input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgb(255 255 255 / 0.05);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.field-input[aria-invalid="true"] {
  border-color: var(--danger);
  box-shadow: 0 0 0 4px rgb(255 123 123 / 0.14);
}

textarea.field-input {
  min-height: 160px;
  resize: vertical;
}

.trap {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Only takes space while Cloudflare is showing a challenge (main.js toggles the class). */
.turnstile.is-visible { margin: 4px 0 18px; }

.panel-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 8px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.status {
  margin: 0;
  min-width: 0;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--fg-2);
}

.status::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  vertical-align: 1px;
}

.status a { color: var(--fg); }

.send {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 46px;
  padding: 0 22px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font: 500 15px/1 var(--sans);
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s, opacity 0.25s;
}

.send:not(:disabled):hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 40px -8px var(--accent-glow);
}

.send:not(:disabled):active { transform: translateY(0) scale(0.98); }

.send:disabled {
  cursor: progress;
  opacity: 0.6;
}

/* ---------- Footer ---------- */

.footer {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 28px var(--pad);
  border-top: 1px solid var(--line);
  background: var(--bg);
  font-size: 12px;
  color: var(--fg-2);
}

.footer p { margin: 0; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--fg); }

/* ---------- Reveal on scroll ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- Small screens / touch / motion ---------- */

@media (max-width: 960px) {
  .cards { grid-template-columns: 1fr; }
  .contact .wrap { grid-template-columns: 1fr; }
  .contact-copy { position: static; }
}

@media (max-width: 720px) {
  .coords { display: none; }
  .hero { padding-top: 120px; padding-bottom: 120px; }
  .hero::before { background: radial-gradient(130% 48% at 50% 36%, rgb(6 8 12 / 0.7), transparent 75%); }
  .eyebrow { font-size: 11px; letter-spacing: 0.12em; }
  .hero-foot { gap: 20px; }
  .hero-foot span:nth-child(3),
  .hero-foot span:nth-child(4) { display: none; }
  .card { padding: 28px 24px 32px; }
  .card-index { margin-bottom: 28px; }
  .panel { padding: 20px 18px 18px; }
  .panel-head span:last-child { display: none; }
  .panel-foot { flex-wrap: wrap; }
  .send { width: 100%; justify-content: center; }
  .footer { justify-content: center; text-align: center; }
}

@media (pointer: coarse) {
  /* 16px stops iOS zooming in on focus. */
  .field-input { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .pulse::after, .scroll-cue::after { animation: none; }
  .btn, .send, .card, .field-input, .topbar { transition: none; }
}