/* Polycene — styles.css
   Design: "Signal" — dark, immersive, brand cyan #00aeef.
   Static site, no JS. */

:root {
  --bg: #070b12;
  --bg-elev: #0c1320;
  --surface: #101a2b;
  --text: #e9eff7;
  --text-dim: #9db0c5;
  --line: rgba(157, 176, 197, 0.16);
  --accent: #00aeef;
  --accent-ink: #04283a;
  --accent-soft: rgba(0, 174, 239, 0.1);
  --accent-glow: rgba(0, 174, 239, 0.32);
  --radius: 14px;
  --maxw: 1100px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.5rem 1rem;
  border-radius: 0 0 8px 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

.container {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2rem);
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 11, 18, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--accent);
  font-weight: 800;
  font-size: 1.22rem;
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }
.brand .mark { flex: none; }
.brand .dot { margin-inline: 0.04em; }

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 3vw, 1.8rem);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.95rem;
  padding-block: 0.35rem;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--text); text-decoration: none; }
.site-nav a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}

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

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(4.5rem, 12vw, 8.5rem);
  background:
    linear-gradient(180deg, rgba(7, 11, 18, 0.55) 0%, rgba(7, 11, 18, 0.75) 55%, var(--bg) 100%),
    url("/assets/hero-gearvr.jpg") center 30% / cover no-repeat;
}

.hero .rings {
  position: absolute;
  z-index: -1;
  right: -140px;
  top: -120px;
  width: 520px;
  opacity: 0.5;
}
@media (max-width: 720px) {
  .hero .rings { width: 340px; right: -200px; top: -80px; opacity: 0.25; }
}

.hero .kicker { margin-bottom: 1rem; }

.hero .entry {
  margin: 0 0 0.6rem;
  color: var(--accent);
  font-weight: 800;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  letter-spacing: -0.01em;
}
.hero .entry .pos {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-weight: 400;
  color: var(--text-dim);
  font-size: 0.75em;
  margin-left: 0.25em;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.3rem, 6vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  max-width: 17ch;
}

.hero p.lede {
  margin: 0 0 2rem;
  max-width: 56ch;
  font-size: clamp(1.05rem, 2.2vw, 1.22rem);
  color: var(--text-dim);
}

.kicker {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
}

/* ---------- Buttons ---------- */

.cta-row { display: flex; gap: 0.9rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 0.78rem 1.5rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 0 24px var(--accent-glow);
}
.btn-primary:hover { box-shadow: 0 0 36px var(--accent-glow); }

.btn-ghost {
  border-color: var(--line);
  color: var(--text);
  background: rgba(16, 26, 43, 0.4);
}
.btn-ghost:hover { border-color: var(--accent); }

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

.section { padding-block: clamp(3.2rem, 8vw, 5.5rem); }
.section-tight { padding-block: clamp(2rem, 5vw, 3rem); }

.section h2 {
  font-size: clamp(1.6rem, 3.6vw, 2.2rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0.4rem 0 0.8rem;
}

.section .section-intro {
  color: var(--text-dim);
  max-width: 62ch;
  margin: 0 0 2.2rem;
}

/* Credibility strip */

.cred {
  border-block: 1px solid var(--line);
  background: var(--bg-elev);
}
.cred .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.6rem 2.4rem;
  padding-block: 1.1rem;
}
.cred span {
  color: var(--text-dim);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------- Cards ---------- */

.grid {
  display: grid;
  gap: 1.3rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}

.card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-elev) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.card p { margin: 0; color: var(--text-dim); font-size: 0.98rem; }

.card .icon {
  width: 44px;
  height: 44px;
  margin-bottom: 1rem;
  color: var(--accent);
}

/* Work cards */

.work-card {
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-elev) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.work-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 174, 239, 0.45);
  text-decoration: none;
}
a.work-card { color: inherit; }
.work-card:hover h3 { color: var(--accent); }

.work-card .thumb {
  height: 215px;
  overflow: hidden;
  background: radial-gradient(120% 120% at 20% 0%, rgba(0, 174, 239, 0.16) 0%, rgba(12, 19, 32, 0.6) 60%), var(--bg-elev);
  display: grid;
  place-items: center;
  border-bottom: 1px solid var(--line);
}
.work-card .thumb img {
  width: 100%;
  height: 215px;
  object-fit: cover;
  object-position: center top;
}
.work-card .thumb svg { width: 84px; height: 84px; color: var(--accent); opacity: 0.85; }

.work-card .body { padding: 1.35rem 1.4rem 1.5rem; display: flex; flex-direction: column; gap: 0.55rem; }
.work-card h3 { margin: 0; font-size: 1.12rem; letter-spacing: 0.02em; color: var(--text); }
.work-card p { margin: 0; color: var(--text-dim); font-size: 0.95rem; }

.tag-row { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.35rem; }
.tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(0, 174, 239, 0.25);
  padding: 0.18rem 0.6rem;
  border-radius: 999px;
}

.award {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.4rem;
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
}
.award img { width: 54px; height: auto; border-radius: 6px; background: #fff; padding: 3px; }

/* Work page group headers */

.work-group { margin-bottom: clamp(2.5rem, 6vw, 4rem); }
.work-group > .group-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.7rem;
  margin-bottom: 1.5rem;
}
.work-group h2 { margin: 0; font-size: 1.45rem; letter-spacing: -0.01em; }
.work-group .group-head span { color: var(--text-dim); font-size: 0.9rem; }

/* ---------- Page hero (interior pages) ---------- */

.page-hero {
  padding-block: clamp(3rem, 8vw, 5rem) clamp(1.5rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(90% 140% at 85% -20%, rgba(0, 174, 239, 0.14) 0%, transparent 60%),
    var(--bg);
}
.page-hero h1 {
  margin: 0.5rem 0 0.8rem;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.02em;
}
.page-hero p { margin: 0; color: var(--text-dim); max-width: 60ch; }

/* ---------- Support ---------- */

.contact-grid {
  display: grid;
  gap: 1.3rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
}

.contact-card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-elev) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.8rem;
}
.contact-card .icon { width: 42px; height: 42px; color: var(--accent); margin-bottom: 1rem; }
.contact-card h2 { margin: 0 0 0.4rem; font-size: 1.2rem; }
.contact-card p { margin: 0 0 1rem; color: var(--text-dim); font-size: 0.96rem; }
.contact-card .contact-line {
  font-size: clamp(1.15rem, 2.6vw, 1.45rem);
  font-weight: 700;
  word-break: break-word;
}

.note {
  margin-top: 2rem;
  color: var(--text-dim);
  font-size: 0.92rem;
}

/* ---------- Prose (privacy policy) ---------- */

.prose { max-width: 72ch; }
.prose h2 { font-size: 1.3rem; margin: 2.2rem 0 0.6rem; letter-spacing: -0.01em; }
.prose p, .prose li { color: var(--text-dim); }
.prose .updated { font-size: 0.9rem; color: var(--text-dim); }

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

.cta-band {
  border-block: 1px solid var(--line);
  background:
    radial-gradient(70% 160% at 50% 120%, rgba(0, 174, 239, 0.18) 0%, transparent 65%),
    var(--bg-elev);
  text-align: center;
}
.cta-band h2 { margin: 0 0 0.6rem; }
.cta-band p { margin: 0 auto 1.6rem; color: var(--text-dim); max-width: 50ch; }

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

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2.4rem;
  background: var(--bg);
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem 2.5rem;
  align-items: center;
  justify-content: space-between;
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 1.4rem; }
.site-footer a { color: var(--text-dim); font-size: 0.92rem; }
.site-footer a:hover { color: var(--text); }
.site-footer .fineprint {
  width: 100%;
  color: var(--text-dim);
  font-size: 0.82rem;
  opacity: 0.8;
  margin: 0;
}
.site-footer .copyright { color: var(--text-dim); font-size: 0.92rem; }

/* ---------- 404 ---------- */

.error-page {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
}
.error-page .code {
  font-size: clamp(4rem, 14vw, 7rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin: 0;
}

/* ---------- Motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .btn, .work-card { transition: none; }
}