/* =========================================================================
   Flywheel Talent Solutions — Robotics & AI Recruiting
   Design system: deep-tech serious. Dark UI, warm signal accent,
   technical typography, restrained motion.
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---------- Tokens ---------- */
:root {
  --bg:        #0a0b0d;
  --bg-elev:  #111316;
  --surface:  #15181c;
  --surface-2: #1b1e23;
  --border:   #2a2e35;
  --border-strong: #3a3f48;
  --text:     #ededed;
  --text-2:   #c8ccd1;
  --muted:    #8a8f96;
  --dim:      #5d6168;

  --accent:   #ff7849;        /* signal orange */
  --accent-2: #ffb480;
  --accent-bg: rgba(255, 120, 73, 0.08);

  --maxw: 1200px;
  --pad:  clamp(20px, 4vw, 40px);
  --radius: 4px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); line-height: 1.05; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); line-height: 1.15; letter-spacing: -0.025em; }
h3 { font-size: 1.2rem; line-height: 1.3; }
h4 { font-size: 1rem; line-height: 1.4; }

p { margin: 0 0 1em; color: var(--text-2); }

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--text-2);
  line-height: 1.5;
  max-width: 60ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 1px;
  background: var(--accent);
}

.mono { font-family: var(--font-mono); }
.muted { color: var(--muted); }
.text-2 { color: var(--text-2); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

section { padding-block: clamp(64px, 9vw, 120px); }
section + section { border-top: 1px solid var(--border); }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-3.keep-2-md { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid-3.keep-2-md { grid-template-columns: 1fr; }
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 11, 13, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 22px;
  height: 22px;
  color: var(--accent);
}
.brand-name { font-size: 1rem; }
.brand-name span { color: var(--muted); font-weight: 500; }

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav a {
  font-size: 0.9rem;
  color: var(--text-2);
  transition: color 120ms ease;
}
.nav a:hover, .nav a.active { color: var(--text); }

@media (max-width: 760px) {
  .nav { gap: 18px; }
  .nav a:not(.btn) { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all 150ms ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #1a0a00;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { border-color: var(--text); }
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-weight: 500;
  font-size: 0.9rem;
}
.btn-link::after {
  content: '→';
  transition: transform 150ms ease;
}
.btn-link:hover::after { transform: translateX(3px); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-block: clamp(80px, 12vw, 160px) clamp(64px, 9vw, 120px);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(800px 400px at 80% 0%, rgba(255, 120, 73, 0.10), transparent 60%),
    linear-gradient(to bottom, rgba(255, 120, 73, 0.03), transparent 40%);
  pointer-events: none;
  z-index: 0;
}
.hero > .container { position: relative; z-index: 1; }
.hero h1 { max-width: 18ch; margin-bottom: 0.6em; }
.hero .lead { margin-bottom: 2em; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 200ms ease, transform 200ms ease;
}
.card:hover {
  border-color: var(--border-strong);
}
.card h3 { margin-bottom: 8px; }
.card p { margin-bottom: 0; color: var(--text-2); font-size: 0.95rem; }
.card .card-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.card-link {
  display: block;
  cursor: pointer;
}
.card-link:hover { border-color: var(--accent); }

/* ---------- Stat / Metric ---------- */
.stat {
  border-top: 1px solid var(--border);
  padding-top: 18px;
}
.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
  margin-bottom: 10px;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.4;
}

/* ---------- Role / Tag chip ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--text-2);
  border: 1px solid var(--border);
  background: var(--bg-elev);
  padding: 5px 10px;
  border-radius: 3px;
}
.tag::before {
  content: '';
  display: block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- Code-block style decoration ---------- */
.terminal {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  color: var(--text-2);
  position: relative;
}
.terminal::before {
  content: '';
  position: absolute;
  top: 12px; left: 12px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 14px 0 0 #444a52, 28px 0 0 #444a52;
}
.terminal pre {
  margin: 16px 0 0;
  white-space: pre-wrap;
  word-break: break-word;
}
.terminal .prompt { color: var(--accent); margin-right: 8px; }
.terminal .comment { color: var(--dim); }

/* ---------- Section heads ---------- */
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
  margin-bottom: clamp(40px, 6vw, 64px);
}
.section-head h2 { max-width: 22ch; }
@media (max-width: 760px) { .section-head { grid-template-columns: 1fr; } }

/* ---------- Lists ---------- */
ul.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
ul.checklist li {
  position: relative;
  padding-left: 26px;
  color: var(--text-2);
  font-size: 0.95rem;
}
ul.checklist li::before {
  content: '+';
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 600;
}

/* ---------- Geo strip ---------- */
.geo-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 760px) { .geo-row { grid-template-columns: 1fr; } }
.geo-card {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 28px;
  border-radius: var(--radius);
}
.geo-card .city {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.geo-card h3 { margin-bottom: 10px; }
.geo-card p { font-size: 0.9rem; margin: 0; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding-block: 48px 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-col a { font-size: 0.9rem; color: var(--text-2); }
.footer-col a:hover { color: var(--accent); }
.footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: 0.8rem;
  color: var(--muted);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; max-width: 36ch; }
.footer-brand p { font-size: 0.85rem; color: var(--muted); margin: 0; }

/* ---------- CTA strip ---------- */
.cta {
  border: 1px solid var(--border);
  background:
    linear-gradient(135deg, rgba(255, 120, 73, 0.06), transparent 60%),
    var(--surface);
  border-radius: var(--radius);
  padding: clamp(32px, 5vw, 56px);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 32px;
  align-items: center;
}
@media (max-width: 760px) { .cta { grid-template-columns: 1fr; } }
.cta h2 { max-width: 22ch; }
.cta p { color: var(--text-2); margin: 12px 0 0; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  padding-block: clamp(64px, 8vw, 100px) clamp(48px, 6vw, 72px);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(700px 300px at 90% 0%, rgba(255, 120, 73, 0.08), transparent 60%);
  pointer-events: none;
}
.page-hero > .container { position: relative; }
.page-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  max-width: 18ch;
  margin: 18px 0 18px;
}
.page-hero .lead { max-width: 64ch; }

/* ---------- Forms ---------- */
.form-grid { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.field input,
.field textarea,
.field select {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 12px 14px;
  border-radius: var(--radius);
  transition: border-color 150ms ease;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
}
.field textarea { min-height: 120px; resize: vertical; }

/* ---------- Misc ---------- */
.divider {
  height: 1px;
  background: var(--border);
  margin-block: 48px;
  border: 0;
}

.kicker-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 8px;
  letter-spacing: 0.08em;
}

.scroll-x {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}
.scroll-x::-webkit-scrollbar { height: 6px; }
.scroll-x::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}