/* ═══════════════════════════════════════════════════════════════════════════
   pitonhq.com — site chrome.

   Layout and site-specific components only. Every colour, face, radius, motion
   and device comes from the design system (styles.css + tokens/, including the
   local amendments.css that supplies .pt-hero, the glow, the grid and .pt-rule).

   Nothing here redefines an imported token. Where the site needs a value the
   system doesn't carry — marketing sections breathe more than app sections do —
   it is declared as a --site-* variable so a design-system re-sync can never
   silently change the site's rhythm, and so nothing in here is mistaken for
   part of the system.
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
  /* --pt-section-y is 56px, tuned for dense application screens. Marketing
     sections need roughly double that at desktop width. */
  --site-section-y: clamp(56px, 9vw, 104px);
  --site-nav-h: 60px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; }
img { max-width: 100%; }

.site-section { padding: var(--site-section-y) var(--pt-section-x); }
.site-section--tight { padding-block: clamp(40px, 6vw, 68px); }

/* ── Skip link ──────────────────────────────────────────────────────────── */
.skip {
  position: absolute; left: -9999px; top: 0; z-index: 50;
  background: var(--pt-gold); color: var(--pt-navy);
  padding: 10px 16px; border-radius: 0 0 var(--pt-radius) 0;
  font-family: var(--pt-font-display); font-weight: var(--pt-weight-semi);
}
.skip:focus { left: 0; }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: var(--pt-control-h); padding: 0 20px;
  border: 1px solid transparent; border-radius: var(--pt-radius);
  font-family: var(--pt-font-display); font-size: var(--pt-text-sm);
  font-weight: var(--pt-weight-semi); letter-spacing: -0.006em;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background var(--pt-dur-fast) var(--pt-ease),
              border-color var(--pt-dur-fast) var(--pt-ease),
              color var(--pt-dur-fast) var(--pt-ease);
}
.btn--sm { height: var(--pt-control-h-sm); padding: 0 14px; font-size: var(--pt-text-label); }
.btn--lg { height: var(--pt-control-h-lg); padding: 0 26px; font-size: var(--pt-text-body); }

/* Gold fill reads as the single primary action. Navy text, not white — gold is
   light enough that white on it fails contrast. */
.btn--gold { background: var(--pt-gold); color: var(--pt-navy); }
.btn--gold:hover { background: var(--pt-gold-400); color: var(--pt-navy); }

.btn--onnavy { background: transparent; color: #fff; border-color: var(--pt-border-on-navy); }
.btn--onnavy:hover { background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.30); }

.btn--navy { background: var(--pt-navy); color: #fff; }
.btn--navy:hover { background: var(--pt-navy-700); color: #fff; }

.btn--quiet { background: transparent; color: var(--pt-navy); border-color: var(--pt-border-strong); }
.btn--quiet:hover { background: var(--pt-steel-50); color: var(--pt-navy); }

/* ── Nav ────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: var(--pt-navy); border-bottom: 1px solid var(--pt-border-on-navy);
}
.nav__inner {
  max-width: var(--pt-container); margin: 0 auto; padding: 0 var(--pt-section-x);
  min-height: var(--site-nav-h); display: flex; align-items: center; gap: 32px;
}
.nav__logo { display: flex; align-items: center; }
.nav__logo img { height: 20px; width: auto; display: block; }
.nav__links { display: flex; gap: 22px; }
.nav__links a {
  font-family: var(--pt-font-display); font-weight: var(--pt-weight-medium);
  font-size: var(--pt-text-sm); letter-spacing: -0.006em;
  color: var(--pt-on-navy-2); text-decoration: none;
  padding-bottom: 2px; border-bottom: 1px solid transparent;
}
.nav__links a:hover { color: #fff; }
.nav__links a[aria-current="page"] { color: #fff; border-bottom-color: var(--pt-gold); }
.nav__cta { margin-left: auto; display: flex; align-items: center; gap: 14px; }

@media (max-width: 800px) {
  .nav__inner { flex-wrap: wrap; gap: 0 16px; padding-block: 12px; }
  .nav__cta { margin-left: auto; }
  .nav__links {
    order: 3; width: 100%; margin-top: 12px; padding-top: 10px; gap: 18px;
    border-top: 1px solid var(--pt-border-on-navy);
    overflow-x: auto; scrollbar-width: none;
  }
  .nav__links::-webkit-scrollbar { display: none; }
  .nav__links a { white-space: nowrap; }
}

/* ── Hero ───────────────────────────────────────────────────────────────── */
.hero { padding: clamp(64px, 12vw, 132px) var(--pt-section-x) clamp(56px, 10vw, 108px); }
.hero__inner { max-width: var(--pt-container); margin: 0 auto; }
.hero h1 {
  margin: 18px 0 0; max-width: 17ch;
  font-family: var(--pt-font-display); font-weight: var(--pt-weight-bold);
  font-size: clamp(34px, 6.2vw, var(--pt-text-hero));
  line-height: var(--pt-leading-tight); letter-spacing: var(--pt-track-display);
  color: #fff; text-wrap: balance;
}
.hero .pt-rule { margin-top: 26px; }
.hero__lede {
  margin: 26px 0 0; max-width: 58ch;
  font-size: var(--pt-text-lg); line-height: var(--pt-leading-relaxed);
  color: var(--pt-on-navy-2); text-wrap: pretty;
}
.hero__actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }

/* ── Page header (interior pages) ───────────────────────────────────────── */
.pagehead { padding: clamp(48px, 8vw, 88px) var(--pt-section-x) clamp(40px, 6vw, 64px); }
.pagehead__inner { max-width: var(--pt-container); margin: 0 auto; }
.pagehead h1 {
  margin: 16px 0 0; max-width: 20ch;
  font-family: var(--pt-font-display); font-weight: var(--pt-weight-bold);
  font-size: clamp(30px, 4.8vw, var(--pt-text-display));
  line-height: var(--pt-leading-tight); letter-spacing: var(--pt-track-display);
  color: #fff; text-wrap: balance;
}
.pagehead .pt-rule { margin-top: 22px; }
.pagehead__lede {
  margin: 24px 0 0; max-width: 58ch;
  font-size: var(--pt-text-lg); line-height: var(--pt-leading-relaxed);
  color: var(--pt-on-navy-2); text-wrap: pretty;
}

/* ── Section headings ───────────────────────────────────────────────────── */
.sechead { max-width: var(--pt-container); margin: 0 auto; }
.sechead h2 { margin: 10px 0 0; max-width: 24ch; text-wrap: balance; }
.sechead p { margin: 14px 0 0; }
.sechead--onnavy h2 { color: #fff; }
.sechead--onnavy p { color: var(--pt-on-navy-2); }

/* ── Card grid ──────────────────────────────────────────────────────────── */
.grid { display: grid; gap: 12px; margin-top: 36px; }
.grid--1 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; } }

.card { padding: 22px; }
.card__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card h3 { margin: 18px 0 8px; }
.card p {
  margin: 0; font-family: var(--pt-font-body); font-size: var(--pt-text-sm);
  line-height: 1.55; color: var(--pt-steel-500); text-wrap: pretty;
}
.card--onnavy { background: transparent; border: 1px solid var(--pt-border-on-navy); border-radius: var(--pt-radius); }
.card--onnavy h3 { color: #fff; }
.card--onnavy p { color: var(--pt-on-navy-2); }

/* ── Numbered steps ─────────────────────────────────────────────────────── */
.steps { display: grid; gap: 1px; margin-top: 36px; background: var(--pt-border-subtle); }
.steps--onnavy { background: var(--pt-border-on-navy); }
.step { background: var(--pt-surface-card); padding: 24px 22px; }
.steps--onnavy .step { background: var(--pt-navy); }
.step__n { display: block; }
.step h3 { margin: 14px 0 8px; }
.steps--onnavy .step h3 { color: #fff; }
.step p { margin: 0; font-size: var(--pt-text-sm); line-height: 1.55; color: var(--pt-steel-500); text-wrap: pretty; }
.steps--onnavy .step p { color: var(--pt-on-navy-2); }
.step__meta { margin-top: 14px; }
@media (min-width: 641px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .steps--4 { grid-template-columns: repeat(4, 1fr); } }

/* ── Definition rows ────────────────────────────────────────────────────── */
.rows { margin-top: 36px; border-top: var(--pt-hairline); }
.row {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 20px 40px;
  padding: 22px 0; border-bottom: var(--pt-hairline);
}
.row h3 { margin: 0 0 6px; }
.row p { margin: 0; font-size: var(--pt-text-sm); line-height: 1.6; color: var(--pt-steel-500); text-wrap: pretty; }
.row__aside { margin-top: 8px; }
@media (max-width: 700px) { .row { grid-template-columns: 1fr; gap: 10px; } }

/* ── CTA band ───────────────────────────────────────────────────────────── */
.cta__inner {
  max-width: var(--pt-container); margin: 0 auto;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 24px 40px;
}
.cta h2 { margin: 10px 0 0; max-width: 22ch; color: #fff; text-wrap: balance; }
.cta p { margin: 12px 0 0; max-width: 46ch; color: var(--pt-on-navy-2); font-size: var(--pt-text-sm); line-height: 1.6; }
.cta__actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ── Footer ─────────────────────────────────────────────────────────────── */
.foot { background: var(--pt-navy-950); color: var(--pt-on-navy-2); }
.foot__top {
  max-width: var(--pt-container); margin: 0 auto;
  padding: 48px var(--pt-section-x) 26px;
  display: grid; grid-template-columns: 1.5fr repeat(3, 0.8fr); gap: 32px;
}
.foot__blurb {
  font-family: var(--pt-font-body); font-size: var(--pt-text-sm); line-height: 1.55;
  margin: 14px 0 0; max-width: 32ch; color: var(--pt-on-navy-3);
}
.foot__col h2 { all: unset; }
.foot__links { display: flex; flex-direction: column; gap: 9px; margin-top: 14px; }
.foot__links a { font-family: var(--pt-font-body); font-size: var(--pt-text-sm); color: var(--pt-on-navy-2); text-decoration: none; }
.foot__links a:hover { color: #fff; }
.foot__bottom { border-top: 1px solid var(--pt-border-on-navy); }
.foot__bottom > div {
  max-width: var(--pt-container); margin: 0 auto;
  padding: 16px var(--pt-section-x);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px;
}
@media (max-width: 860px) { .foot__top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .foot__top { grid-template-columns: 1fr; gap: 26px; } }

/* ── Contact ────────────────────────────────────────────────────────────── */
.contact { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; max-width: var(--pt-container); margin: 0 auto; }
@media (max-width: 860px) { .contact { grid-template-columns: 1fr; gap: 32px; } }
.mailcard { padding: 26px; }
.mailcard a.mail {
  display: inline-block; margin-top: 10px;
  font-family: var(--pt-font-mono); font-size: var(--pt-text-lg);
  color: var(--pt-gold-700); word-break: break-all;
}
.mailcard a.mail:hover { color: var(--pt-gold); }

/* ── Utilities ──────────────────────────────────────────────────────────── */
.stack-sm > * + * { margin-top: 8px; }
.muted { color: var(--pt-text-muted); }
.nowrap { white-space: nowrap; }