/* ============================================================
   Cadrex — Intelligent media. Measurable returns.
   Brand-aligned stylesheet (v1, May 2026 guidelines)
   Palette: Carbon ink · Cadrex purple accent (used sparingly)
            Bone & Cream surfaces · Switzer typeface
   ============================================================ */

/* ---- Design tokens ---- */
:root {
  --carbon:       #1A1A1A;   /* primary ink — text, structure, wordmark */
  --carbon-soft:  #5A5A5A;   /* muted text */
  --carbon-faint: #9A9A9A;   /* faint text / captions */
  --bone:         #F5F4EE;   /* neutral surface — cards, panels */
  --cream:        #FBFAF6;   /* page ground */
  --purple:       #534AB7;   /* primary accent — the focal dot, used sparingly */
  --purple-light: #7F77DD;   /* accent on dark grounds */
  --purple-tint:  #EEEDFE;   /* soft surface — badges, highlights */
  --rule:         rgba(26, 26, 26, 0.12);
  --rule-soft:    rgba(26, 26, 26, 0.07);

  --text:   var(--carbon);
  --muted:  var(--carbon-soft);
  --muted-2:var(--carbon-faint);

  --maxw: 1140px;
  --radius: 14px;
  --radius-sm: 10px;

  --ff: "Switzer", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --shadow: 0 28px 60px -34px rgba(26, 26, 26, 0.28);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--ff);
  background: var(--cream);
  color: var(--text);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { line-height: 1.12; margin: 0; font-weight: 700; letter-spacing: -0.03em; }

/* ---- Layout helpers ---- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.section { padding: 104px 0; position: relative; }
.section--tight { padding: 72px 0; }
.center { text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 18px;
}
.lead { color: var(--muted); font-size: 1.1rem; max-width: 62ch; line-height: 1.65; }
.section-title { font-size: clamp(1.8rem, 3.6vw, 2.7rem); letter-spacing: -0.04em; }
.divider { height: 1px; background: var(--rule); border: 0; margin: 0; }

/* purple accent text — used sparingly on a single hero phrase */
.accent { color: var(--purple); }
.grad { color: var(--purple); }   /* legacy hook → solid Cadrex purple */

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px;
  font-weight: 600; font-size: 0.95rem;
  cursor: pointer; border: 1px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--purple); color: #fff;
  box-shadow: 0 12px 26px -14px rgba(83, 74, 183, 0.7);
}
.btn--primary:hover { transform: translateY(-2px); background: #4840a0; box-shadow: 0 18px 34px -14px rgba(83, 74, 183, 0.6); }
.btn--ghost { border-color: var(--rule); color: var(--carbon); background: transparent; }
.btn--ghost:hover { border-color: var(--carbon); background: var(--bone); }
.btn--lg { padding: 16px 30px; font-size: 1.0rem; }

/* ---- Brand lockup ---- */
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand__mark { width: 30px; height: 30px; display: block; flex: none; }
.brand__word { font-weight: 800; letter-spacing: -0.045em; font-size: 1.4rem; color: var(--carbon); line-height: 1; }

/* ---- Navigation ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(251, 250, 246, 0.78);
  border-bottom: 1px solid var(--rule-soft);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.nav__links { display: flex; align-items: center; gap: 34px; }
.nav__links a { color: var(--carbon-soft); font-size: 0.94rem; font-weight: 500; transition: color .15s ease; }
.nav__links a:hover, .nav__links a.active { color: var(--carbon); }
.nav__cta { display: flex; align-items: center; gap: 16px; }
.nav__toggle { display: none; background: none; border: 0; color: var(--carbon); cursor: pointer; padding: 8px; }
.nav__toggle svg { width: 26px; height: 26px; }

/* ---- Hero ---- */
.hero { position: relative; padding: 128px 0 96px; overflow: hidden; }
.hero__glow {
  position: absolute; inset: -25% 0 auto 0; height: 620px; z-index: 0;
  background:
    radial-gradient(680px 380px at 16% 8%, rgba(83,74,183,0.10), transparent 70%),
    radial-gradient(520px 340px at 92% 0%, rgba(127,119,221,0.08), transparent 72%);
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 1; max-width: 880px; }
.badge {
  display: inline-flex; align-items: center; gap: 9px;
  border: 1px solid var(--rule); border-radius: 999px;
  padding: 6px 15px; font-size: 0.78rem; color: var(--carbon-soft);
  margin-bottom: 28px; background: var(--purple-tint); border-color: rgba(83,74,183,0.16);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--purple); }
.hero h1 { font-size: clamp(2.5rem, 6vw, 4.4rem); letter-spacing: -0.045em; font-weight: 800; }
.hero h1 .grad { display: inline; }
.hero__sub { margin-top: 26px; font-size: clamp(1.05rem, 2vw, 1.28rem); color: var(--carbon-soft); max-width: 60ch; line-height: 1.6; }
.hero__sub strong { color: var(--carbon); font-weight: 600; }
.hero__actions { margin-top: 40px; display: flex; gap: 14px; flex-wrap: wrap; }

/* ---- Strip ---- */
.strip { border-top: 1px solid var(--rule-soft); border-bottom: 1px solid var(--rule-soft); padding: 24px 0; background: var(--bone); }
.strip__row { display: flex; flex-wrap: wrap; gap: 14px 38px; align-items: center; justify-content: center; color: var(--carbon-soft); font-size: 0.9rem; }
.strip__row span { display: inline-flex; align-items: center; gap: 11px; }
.strip__row span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--purple); }

/* ---- Grid of cards ---- */
.grid { display: grid; gap: 20px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bone);
  border: 1px solid var(--rule-soft); border-radius: var(--radius);
  padding: 32px; position: relative; overflow: hidden;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-3px); border-color: rgba(83,74,183,0.35); box-shadow: var(--shadow); }
.card__icon {
  width: 46px; height: 46px; border-radius: 12px; margin-bottom: 20px;
  display: grid; place-items: center;
  background: var(--purple-tint); color: var(--purple);
}
.card__icon svg { width: 23px; height: 23px; }
.card h3 { font-size: 1.18rem; margin-bottom: 10px; letter-spacing: -0.02em; }
.card p { color: var(--carbon-soft); margin: 0; font-size: 0.97rem; }

/* ---- Stat / proof ---- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat {
  text-align: center; padding: 30px 18px;
  border: 1px solid var(--rule-soft); border-radius: var(--radius);
  background: var(--bone);
}
.stat__num { font-size: clamp(2rem, 4.5vw, 2.9rem); font-weight: 800; letter-spacing: -0.05em; color: var(--carbon); }
.stat__num.grad { color: var(--purple); }
.stat__label { color: var(--carbon-soft); font-size: 0.9rem; margin-top: 8px; font-weight: 500; }
.stat__ctx { color: var(--carbon-faint); font-size: 0.78rem; margin-top: 4px; }

/* ---- Funnel / stages ---- */
.stage {
  display: grid; grid-template-columns: 230px 1fr; gap: 30px; align-items: start;
  padding: 34px 0; border-top: 1px solid var(--rule);
}
.stage:first-of-type { border-top: 0; }
.stage__tag { color: var(--purple); font-weight: 600; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; }
.stage h3 { font-size: 1.5rem; margin: 8px 0 6px; letter-spacing: -0.03em; }
.stage__formats { color: var(--carbon-faint); font-size: 0.94rem; }
.stage__body p { color: var(--carbon-soft); margin: 0; }
.stage__body strong { color: var(--carbon); font-weight: 600; }

/* ---- Steps (ecosystem) ---- */
.steps { display: grid; gap: 16px; }
.step {
  display: grid; grid-template-columns: 52px 1fr; gap: 20px; align-items: start;
  padding: 26px; border: 1px solid var(--rule-soft); border-radius: var(--radius);
  background: var(--bone);
}
.step__mark { width: 40px; height: 40px; flex: none; margin-top: 2px; }
.step h4 { font-size: 1.1rem; margin-bottom: 6px; letter-spacing: -0.02em; }
.step p { color: var(--carbon-soft); margin: 0; }

/* ---- Table (formats) ---- */
.table-wrap { border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; background: var(--cream); }
table.fmt { width: 100%; border-collapse: collapse; }
table.fmt th, table.fmt td { text-align: left; padding: 17px 24px; border-bottom: 1px solid var(--rule-soft); }
table.fmt thead th { background: var(--bone); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--carbon-soft); font-weight: 600; }
table.fmt tbody tr:last-child td { border-bottom: 0; }
table.fmt td:first-child { font-weight: 600; color: var(--carbon); }
table.fmt td { color: var(--carbon-soft); }
table.fmt .ctr { color: var(--purple); font-weight: 700; font-variant-numeric: tabular-nums; }
table.fmt tbody tr { transition: background .15s ease; }
table.fmt tbody tr:hover { background: var(--purple-tint); }

/* ---- CTA band (dark application: carbon ground) ---- */
.cta-band {
  border-radius: 20px;
  background: var(--carbon);
  padding: 64px; text-align: center; color: var(--cream);
}
.cta-band h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); color: #fff; letter-spacing: -0.04em; }
.cta-band p { color: rgba(245,244,238,0.7); margin: 16px auto 30px; max-width: 50ch; }
.cta-band .btn--primary { background: var(--cream); color: var(--carbon); box-shadow: none; }
.cta-band .btn--primary:hover { background: #fff; }

/* ---- Callout quote ---- */
.callout {
  border-left: 3px solid var(--purple); padding: 10px 0 10px 28px;
  font-size: clamp(1.3rem, 3vw, 1.85rem); font-weight: 600; letter-spacing: -0.03em;
  max-width: 26ch; color: var(--carbon);
}

/* ---- Checks ---- */
.checks { display: grid; gap: 15px; margin-top: 10px; }
.checks li { display: flex; gap: 12px; color: var(--carbon-soft); }
.checks svg { width: 21px; height: 21px; color: var(--purple); flex: none; margin-top: 2px; }
.checks b { color: var(--carbon); font-weight: 600; }

/* ---- Contact form ---- */
.form { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 0.86rem; color: var(--carbon-soft); font-weight: 500; }
.field input, .field select, .field textarea {
  background: var(--cream); border: 1px solid var(--rule); color: var(--carbon);
  border-radius: var(--radius-sm); padding: 13px 15px; font: inherit; font-size: 0.97rem;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--purple); box-shadow: 0 0 0 3px var(--purple-tint);
}
.field textarea { resize: vertical; min-height: 130px; }
.form__note { color: var(--carbon-faint); font-size: 0.83rem; }
.form__status { font-size: 0.93rem; padding: 12px 16px; border-radius: var(--radius-sm); display: none; }
.form__status.ok { display: block; background: var(--purple-tint); border: 1px solid rgba(83,74,183,0.25); color: var(--purple); }
.form__status.err { display: block; background: #fbeaea; border: 1px solid rgba(180,60,60,0.25); color: #9a3434; }

.contact-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 50px; align-items: start; }
.info-card { border: 1px solid var(--rule-soft); border-radius: var(--radius); padding: 30px; background: var(--bone); }
.info-card h3 { font-size: 1.08rem; margin-bottom: 16px; letter-spacing: -0.02em; }
.info-list li { padding: 13px 0; border-top: 1px solid var(--rule-soft); color: var(--carbon-soft); }
.info-list li:first-child { border-top: 0; padding-top: 0; }
.info-list a:hover { color: var(--purple); }
.info-list b { display: block; color: var(--carbon); font-weight: 600; margin-bottom: 2px; }

/* ---- Footer ---- */
.footer { border-top: 1px solid var(--rule); padding: 60px 0 44px; margin-top: 44px; background: var(--bone); }
.footer__top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer__tag { color: var(--carbon-soft); max-width: 32ch; margin-top: 16px; font-size: 0.95rem; }
.footer__cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer__col h4 { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--carbon-faint); margin-bottom: 14px; }
.footer__col a { display: block; color: var(--carbon-soft); padding: 5px 0; font-size: 0.94rem; transition: color .15s ease; }
.footer__col a:hover { color: var(--carbon); }
.footer__bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 44px; padding-top: 26px; border-top: 1px solid var(--rule-soft); color: var(--carbon-faint); font-size: 0.83rem; }

/* ---- Page header (sub pages) ---- */
.page-head { padding: 96px 0 56px; position: relative; overflow: hidden; }
.page-head__glow { position: absolute; inset: -40% 0 auto 0; height: 440px; background: radial-gradient(600px 320px at 18% 0%, rgba(83,74,183,0.09), transparent 72%); pointer-events: none; }
.page-head__inner { position: relative; z-index: 1; max-width: 760px; }
.page-head h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; letter-spacing: -0.045em; }
.page-head p { color: var(--carbon-soft); margin-top: 20px; font-size: 1.1rem; line-height: 1.6; }

/* ---- Reveal animation ---- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .stage { grid-template-columns: 1fr; gap: 10px; }
}
@media (max-width: 620px) {
  .section { padding: 78px 0; }
  .grid--3, .grid--4, .grid--2 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-band { padding: 40px 26px; }
  .nav__links, .nav__cta .btn { display: none; }
  .nav__toggle { display: inline-flex; }
  .nav__links.open {
    display: flex; flex-direction: column; gap: 18px;
    position: absolute; top: 74px; left: 0; right: 0;
    background: var(--cream); border-bottom: 1px solid var(--rule);
    padding: 24px 28px;
  }
  .footer__bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}