/* ==========================================================================
   Taynium — Design System
   Signature motif: engineering drawing title block + dimension-line ticks
   ========================================================================== */

:root {
  --bg-void: #0e1116;
  --bg-panel: #161b22;
  --bg-panel-raised: #1c222b;
  --surface-paper: #f3f1ea;
  --ink: #e7e9ec;
  --ink-muted: #97a1ad;
  --ink-dark: #191d23;
  --ink-dark-muted: #565f6b;
  --accent-orange: #d9662e;
  --accent-orange-dim: #a84f26;
  --accent-cyan: #4fa6b0;
  --line: #2a313b;
  --line-paper: #c9c2b2;

  --font-display: "Space Grotesk", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --max-w: 1180px;
  --edge: 24px;
}

@media (min-width: 720px) {
  :root { --edge: 56px; }
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg-void);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.3rem; }

p { margin: 0 0 1em; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent-cyan);
  display: inline-block;
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 13px 22px;
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent-orange);
  border-color: var(--accent-orange);
  color: #12100c;
  font-weight: 600;
}
.btn-primary:hover { background: #e9793f; border-color: #e9793f; }

.btn-secondary {
  color: var(--ink);
  border-color: var(--line);
}
.btn-secondary:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }

.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

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

.site-header {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(14, 17, 22, 0.92);
  backdrop-filter: blur(6px);
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: 0.02em;
}
.logo span { color: var(--accent-orange); }
.logo-img { height: 48px; width: auto; display: block; }

nav.main-nav {
  display: none;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}

@media (min-width: 900px) {
  nav.main-nav { display: flex; align-items: center; }
}

nav.main-nav a {
  text-decoration: none;
  color: var(--ink-muted);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
nav.main-nav a:hover, nav.main-nav a[aria-current="page"] {
  color: var(--ink);
  border-color: var(--accent-orange);
}

.nav-toggle {
  display: inline-flex;
  background: none;
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--font-mono);
  padding: 8px 12px;
  font-size: 0.8rem;
  border-radius: 2px;
}
@media (min-width: 900px) { .nav-toggle { display: none; } }

.mobile-nav {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--line);
  padding: 8px var(--edge) 20px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  text-decoration: none;
  color: var(--ink-muted);
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 900px) { .mobile-nav { display: none !important; } }

/* ---------- Hero: framed like a drawing sheet ---------- */

.hero {
  position: relative;
  padding: 90px 0 70px;
  border-bottom: 1px solid var(--line);
}

.sheet-frame {
  position: relative;
  border: 1px solid var(--line);
  padding: 44px var(--edge) 54px;
}

.sheet-frame::before, .sheet-frame::after,
.tick-tl, .tick-tr, .tick-bl, .tick-br {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--accent-orange);
  border-style: solid;
}
.tick-tl { top: -1px; left: -1px; border-width: 2px 0 0 2px; }
.tick-tr { top: -1px; right: -1px; border-width: 2px 2px 0 0; }
.tick-bl { bottom: -1px; left: -1px; border-width: 0 0 2px 2px; }
.tick-br { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; }

.sheet-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-lead {
  max-width: 640px;
  font-size: 1.1rem;
  color: var(--ink-muted);
}

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

section { padding: 76px 0; }
section.tight { padding: 56px 0; }

.section-alt { background: var(--bg-panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* dimension-line divider used between major blocks instead of a plain rule */
.dim-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  margin: 0 0 40px;
}
.dim-divider::before, .dim-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
  position: relative;
}

.section-head {
  max-width: 680px;
  margin-bottom: 46px;
}

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

.grid {
  display: grid;
  gap: 22px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.card {
  border: 1px solid var(--line);
  background: var(--bg-panel-raised);
  padding: 30px 26px;
  border-radius: 2px;
}

.card .num {
  font-family: var(--font-mono);
  color: var(--accent-orange);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 14px;
}

.card p, .card ul { color: var(--ink-muted); font-size: 0.95rem; }
.card ul { padding-left: 18px; margin: 0; }
.card li { margin-bottom: 6px; }

/* Paper panel — used sparingly, evokes a physical drawing sheet */
.paper {
  background: var(--surface-paper);
  color: var(--ink-dark);
  border-radius: 2px;
  padding: 40px var(--edge);
}
.paper h2, .paper h3 { color: var(--ink-dark); }
.paper p { color: var(--ink-dark-muted); }
.paper .eyebrow { color: var(--accent-orange-dim); }
.paper .eyebrow::before { background: var(--accent-orange-dim); }

/* ---------- Process steps ---------- */

.steps {
  display: grid;
  gap: 0;
  border: 1px solid var(--line);
}
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 26px var(--edge);
  border-bottom: 1px solid var(--line);
}
.step:last-child { border-bottom: none; }
.step .step-num {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 0.95rem;
}
.step h3 { margin-bottom: 6px; font-size: 1.05rem; }
.step p { margin: 0; color: var(--ink-muted); font-size: 0.94rem; }

/* ---------- Work / project list ---------- */

.work-item {
  border-top: 1px solid var(--line);
  padding: 30px 0;
  display: grid;
  gap: 8px;
}
.work-item:last-child { border-bottom: 1px solid var(--line); }
.work-item .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.work-item p { color: var(--ink-muted); margin: 0; max-width: 720px; }

/* ---------- Founder block ---------- */

.founder {
  display: grid;
  gap: 30px;
  grid-template-columns: 1fr;
}
@media (min-width: 800px) {
  .founder { grid-template-columns: 260px 1fr; align-items: start; }
}
.founder-photo {
  aspect-ratio: 4/5;
  background: var(--bg-panel-raised);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-muted);
  text-align: center;
  padding: 20px;
}

/* ---------- Forms ---------- */

label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--ink-muted);
  margin-bottom: 8px;
}
.field { margin-bottom: 22px; }
input, select, textarea {
  width: 100%;
  background: var(--bg-panel-raised);
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 12px 14px;
  border-radius: 2px;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 1px;
  border-color: var(--accent-cyan);
}
textarea { resize: vertical; min-height: 110px; }
.field-row { display: grid; gap: 22px; }
@media (min-width: 720px) { .field-row.two { grid-template-columns: 1fr 1fr; } }
.form-note {
  font-size: 0.85rem;
  color: var(--ink-muted);
  border-left: 2px solid var(--accent-orange);
  padding-left: 14px;
  margin-top: 30px;
}

/* ---------- Footer: title block ---------- */

footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 50px 0 0;
}

.title-block {
  border: 1px solid var(--line);
  margin-bottom: 0;
}
.title-block-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
@media (min-width: 800px) {
  .title-block-top { grid-template-columns: 1.4fr 1fr; }
}
.title-block-brand {
  padding: 30px var(--edge);
  border-bottom: 1px solid var(--line);
}
@media (min-width: 800px) {
  .title-block-brand { border-bottom: none; border-right: 1px solid var(--line); }
}
.title-block-brand p { color: var(--ink-muted); font-size: 0.92rem; max-width: 380px; }

.title-block-fields {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}
.tb-field {
  padding: 18px var(--edge);
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
}
.tb-field:nth-child(2n) { border-right: none; }
.tb-field .tb-label {
  display: block;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.tb-field .tb-value { font-size: 0.85rem; color: var(--ink); }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  padding: 20px var(--edge);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.footer-links a { text-decoration: none; color: var(--ink-muted); }
.footer-links a:hover { color: var(--accent-orange); }

.footer-bottom {
  padding: 18px var(--edge) 30px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- FAQ ---------- */

.faq-item {
  border-top: 1px solid var(--line);
  padding: 22px 0;
}
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item h3 { font-size: 1rem; margin-bottom: 8px; }
.faq-item p { color: var(--ink-muted); margin: 0; font-size: 0.95rem; }