/* Shared styles for opt.team sub-pages: /about, /blog, /tools, /privacy, /terms.
   Tokens mirror index.html so sub-pages feel like one site without re-inlining
   the full homepage stylesheet. */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
body { overflow-x: hidden; }
img, svg { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }

:root {
  --bg: #070707;
  --bg-elev: #0E0E0E;
  --bg-card: #111111;
  --bg-card-hover: #161616;
  --line: #1C1C1C;
  --line-strong: #262626;
  --ink: #FAFAFA;
  --ink-mute: #A1A1A1;
  --ink-soft: #6B6B6B;
  --ink-faint: #383838;
  --teal: #5FAA92;
  --teal-hi: #7DD3B8;
  --teal-soft: rgba(95,170,146,0.12);
  --teal-faint: rgba(95,170,146,0.04);
  --warn: #F4A261;
  --max: 1180px;
  --gutter: clamp(20px, 4vw, 60px);
  --font-display: 'Fraunces', ui-serif, Georgia, serif;
  --font-body: 'Geist', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', monospace;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: -0.01em;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1000;
  opacity: 0.025;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* NAV ─────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(7,7,7,0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.nav-brand {
  display: flex;
  align-items: baseline;
  font-family: var(--font-body);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.04em;
}
.nav-brand .dot {
  display: inline-block;
  width: 7px; height: 7px;
  background: var(--teal);
  border-radius: 50%;
  margin: 0 1px;
  transform: translateY(-1px);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  font-size: 14px;
  font-weight: 450;
  color: var(--ink-mute);
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--bg);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  transition: transform 0.2s ease, background 0.2s ease;
}
.nav-cta:hover { background: var(--teal-hi); transform: translateY(-1px); }
@media (max-width: 800px) { .nav-links { display: none; } }

.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* SECTION / HEADING ────────────────── */
.hero {
  padding: 100px var(--gutter) 60px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 32px;
}
.hero-eyebrow .pulse {
  width: 7px; height: 7px;
  background: var(--teal);
  border-radius: 50%;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 340;
  margin-bottom: 28px;
  max-width: 900px;
}
.hero-title em {
  font-style: italic;
  color: var(--teal);
  font-weight: 360;
}
.hero-lede {
  font-size: clamp(17px, 1.5vw, 21px);
  color: var(--ink-mute);
  max-width: 720px;
  line-height: 1.55;
  margin-bottom: 36px;
}

.section { padding: 80px var(--gutter); border-bottom: 1px solid var(--line); }
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
  font-weight: 500;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 340;
  margin-bottom: 18px;
  max-width: 820px;
}
.section-title em { font-style: italic; color: var(--teal); }
.section-lede {
  font-size: clamp(16px, 1.3vw, 19px);
  color: var(--ink-mute);
  max-width: 720px;
  line-height: 1.55;
  margin-bottom: 36px;
}
.section p { max-width: 720px; color: var(--ink-mute); margin-bottom: 18px; }
.section p strong { color: var(--ink); font-weight: 500; }
.section h3 {
  font-family: var(--font-display);
  font-size: 26px;
  letter-spacing: -0.02em;
  font-weight: 400;
  color: var(--ink);
  margin-top: 40px;
  margin-bottom: 14px;
}

.prose { max-width: 720px; }
.prose p { color: var(--ink-mute); margin-bottom: 18px; line-height: 1.7; }
.prose p strong { color: var(--ink); font-weight: 500; }
.prose h2 {
  font-family: var(--font-display);
  font-size: 34px;
  letter-spacing: -0.025em;
  font-weight: 360;
  color: var(--ink);
  margin-top: 48px;
  margin-bottom: 18px;
}

/* Cards / grids ───────────────────── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 28px; }
@media (max-width: 800px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
}
.card:hover {
  border-color: var(--teal);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}
.card-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.card h4 {
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.card p { color: var(--ink-mute); font-size: 14px; line-height: 1.6; }

/* Metric grid ─────────────────────── */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 36px;
}
@media (max-width: 800px) { .metrics { grid-template-columns: repeat(2, 1fr); } }
.metric {
  padding: 22px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.metric-num {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 340;
  color: var(--ink);
  letter-spacing: -0.03em;
  line-height: 1;
}
.metric-num em { font-style: italic; color: var(--teal); font-weight: 360; }
.metric-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-mute);
  margin-top: 10px;
}

/* Buttons ─────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--teal-hi); transform: translateY(-1px); }
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}
.btn-secondary:hover { border-color: var(--teal); color: var(--teal-hi); }
.btn .icon { font-size: 12px; }

.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 32px; }

/* Footer ──────────────────────────── */
.footer {
  padding: 80px var(--gutter) 40px;
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-brand {
  display: flex;
  align-items: baseline;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.04em;
  margin-bottom: 12px;
}
.footer-brand .dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--teal);
  border-radius: 50%;
  margin: 0 1px;
}
.footer-tag { color: var(--ink-mute); font-size: 13px; line-height: 1.55; max-width: 260px; }
.footer-col-title {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 14px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; font-size: 14px; color: var(--ink-mute); }
.footer-links a:hover { color: var(--teal-hi); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
}

/* Utility ─────────────────────────── */
.muted { color: var(--ink-mute); }
.teal { color: var(--teal); }
.callout {
  padding: 22px 24px;
  border-left: 3px solid var(--teal);
  background: var(--teal-faint);
  border-radius: 0 10px 10px 0;
  color: var(--ink);
  margin: 28px 0;
}