/* Chronic — landing page. Design system v2 (DESIGN.md): cream paper, bold type,
   warm inviting green, amber for the men's line. Premium, clinical-but-warm. */

:root {
  --paper: #F4EBD9;
  --paper-2: #EFE3CB;
  --card: #FFFDF7;
  --ink: #221E14;
  --ink-2: #5A5340;
  --ink-3: #938A72;
  --green: #4C8A52;
  --green-deep: #356B3E;
  --green-2: #6BA85F;
  --green-soft: #E7F0D9;
  --amber: #C2772E;
  --amber-soft: #F6E7D4;
  --line: #E2D6BC;
  --radius: 24px;
  --radius-sm: 16px;
  --shadow: 0 18px 48px -22px rgba(34, 30, 20, 0.45);
  --shadow-soft: 0 8px 24px -16px rgba(34, 30, 20, 0.35);
  --maxw: 1140px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
  font-size: 17px;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { letter-spacing: -0.03em; line-height: 1.05; font-weight: 800; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 16px; letter-spacing: -0.01em;
  padding: 14px 24px; border-radius: 999px; border: 1.5px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  min-height: 48px; white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green-deep); color: #fff; box-shadow: var(--shadow-soft); }
.btn-primary:hover { background: #2c5a33; box-shadow: var(--shadow); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--card); border-color: var(--ink-3); }
.btn-amber { background: var(--amber); color: #fff; box-shadow: var(--shadow-soft); }
.btn-amber:hover { background: #a8631f; }
.btn svg { width: 18px; height: 18px; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(12px);
  background: rgba(244, 235, 217, 0.82);
  border-bottom: 1px solid transparent; transition: border-color .2s ease, background .2s ease;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 21px; letter-spacing: -0.04em; }
.brand .mark { width: 34px; height: 34px; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { font-weight: 600; font-size: 15px; color: var(--ink-2); transition: color .15s ease; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav .btn-ghost { display: none; }
}

/* ---------- hero ---------- */
.hero { padding: 76px 0 40px; position: relative; overflow: hidden; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 13px; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--green-deep); background: var(--green-soft);
  padding: 7px 14px; border-radius: 999px; margin-bottom: 22px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.hero h1 { font-size: clamp(40px, 7vw, 76px); max-width: 14ch; }
.hero h1 .hl { color: var(--green-deep); }
.hero-sub { font-size: clamp(18px, 2.3vw, 22px); color: var(--ink-2); max-width: 50ch; margin-top: 24px; font-weight: 450; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; align-items: center; }
.hero-note { font-size: 14px; color: var(--ink-3); margin-top: 18px; display: flex; align-items: center; gap: 8px; }
.hero-note svg { width: 16px; height: 16px; color: var(--green); }

.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
@media (max-width: 940px) { .hero-grid { grid-template-columns: 1fr; gap: 36px; } }

/* North-star dashboard card in the hero */
.northstar {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 26px; position: relative;
}
.ns-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.ns-label { font-size: 13px; font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase; color: var(--ink-3); }
.ns-pill { font-size: 12px; font-weight: 700; color: var(--green-deep); background: var(--green-soft); padding: 4px 10px; border-radius: 999px; }
.ns-value { font-size: 60px; font-weight: 800; letter-spacing: -0.04em; line-height: 1; }
.ns-value span { font-size: 26px; color: var(--ink-3); }
.ns-delta { font-size: 14px; font-weight: 700; color: var(--green-deep); margin-top: 4px; display: flex; align-items: center; gap: 6px; }
.ns-spark { margin-top: 18px; }
.ns-row { display: flex; gap: 12px; margin-top: 18px; }
.ns-stat { flex: 1; background: var(--paper-2); border-radius: var(--radius-sm); padding: 14px; }
.ns-stat .k { font-size: 12px; font-weight: 700; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.03em; }
.ns-stat .v { font-size: 22px; font-weight: 800; margin-top: 4px; }
.ns-stat .v small { font-size: 13px; color: var(--ink-3); font-weight: 600; }

/* ---------- logo strip / proof ---------- */
.proof { padding: 24px 0 8px; }
.proof-row { display: flex; flex-wrap: wrap; gap: 14px 36px; align-items: center; justify-content: center; opacity: .9; }
.proof-item { display: flex; align-items: center; gap: 9px; font-weight: 600; font-size: 14px; color: var(--ink-2); }
.proof-item svg { width: 18px; height: 18px; color: var(--green); }

/* ---------- section scaffolding ---------- */
section { position: relative; }
.section { padding: 84px 0; }
.section-head { max-width: 60ch; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker { font-weight: 700; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--green-deep); margin-bottom: 14px; }
.section h2 { font-size: clamp(30px, 4.4vw, 46px); }
.section-head p { color: var(--ink-2); font-size: 19px; margin-top: 18px; }

/* ---------- front doors ---------- */
.doors { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 820px) { .doors { grid-template-columns: 1fr; } }
.door {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px; box-shadow: var(--shadow-soft); position: relative; overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.door:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.door::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 5px; }
.door.metabolic::before { background: var(--green); }
.door.mens::before { background: var(--amber); }
.door-tile { width: 56px; height: 56px; border-radius: var(--radius-sm); display: grid; place-items: center; margin-bottom: 22px; }
.door.metabolic .door-tile { background: var(--green-soft); color: var(--green-deep); }
.door.mens .door-tile { background: var(--amber-soft); color: var(--amber); }
.door-tile svg { width: 28px; height: 28px; }
.door h3 { font-size: 25px; }
.door .tag { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; margin: 14px 0 8px; }
.door.metabolic .tag { color: var(--green-deep); }
.door.mens .tag { color: var(--amber); }
.door p { color: var(--ink-2); margin-top: 12px; }
.door ul { list-style: none; padding: 0; margin: 20px 0 24px; display: grid; gap: 11px; }
.door li { display: flex; gap: 11px; align-items: flex-start; font-size: 15.5px; color: var(--ink); }
.door li svg { width: 19px; height: 19px; flex: none; margin-top: 1px; }
.door.metabolic li svg { color: var(--green); }
.door.mens li svg { color: var(--amber); }

/* ---------- Outcomes-OS (measure trio) ---------- */
.measure { background: var(--paper-2); }
.measure-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 820px) { .measure-grid { grid-template-columns: 1fr; } }
.measure-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.measure-card .ic { width: 50px; height: 50px; border-radius: 14px; background: var(--green-soft); color: var(--green-deep); display: grid; place-items: center; margin-bottom: 20px; }
.measure-card .ic svg { width: 26px; height: 26px; }
.measure-card h3 { font-size: 21px; }
.measure-card p { color: var(--ink-2); margin-top: 12px; font-size: 15.5px; }
.measure-lead { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: end; margin-bottom: 44px; }
@media (max-width: 820px) { .measure-lead { grid-template-columns: 1fr; gap: 20px; } }
.measure-lead .big { font-size: clamp(30px, 4.4vw, 46px); }
.measure-lead .big em { font-style: normal; color: var(--green-deep); }
.measure-lead p { color: var(--ink-2); font-size: 18px; }

/* ---------- how it works ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
@media (max-width: 940px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .steps { grid-template-columns: 1fr; } }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; position: relative; }
.step .num {
  width: 38px; height: 38px; border-radius: 50%; background: var(--green-deep); color: #fff;
  font-weight: 800; font-size: 16px; display: grid; place-items: center; margin-bottom: 18px;
}
.step h3 { font-size: 18px; }
.step p { color: var(--ink-2); margin-top: 10px; font-size: 15px; }

/* ---------- pricing ---------- */
.pricing { background: var(--green-deep); color: #fff; }
.pricing .kicker { color: var(--green-2); }
.pricing h2 { color: #fff; }
.price-grid { display: grid; grid-template-columns: 1fr 0.9fr; gap: 30px; align-items: stretch; }
@media (max-width: 820px) { .price-grid { grid-template-columns: 1fr; } }
.price-card { background: var(--card); color: var(--ink); border-radius: var(--radius); padding: 38px; box-shadow: var(--shadow); }
.price-promo { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 13px; letter-spacing: .03em; text-transform: uppercase; color: var(--amber); background: var(--amber-soft); padding: 6px 13px; border-radius: 999px; }
.price-amount { display: flex; align-items: baseline; gap: 8px; margin: 22px 0 4px; }
.price-amount .cur { font-size: 22px; font-weight: 700; color: var(--ink-3); }
.price-amount .num { font-size: 62px; font-weight: 800; letter-spacing: -0.04em; }
.price-amount .per { font-size: 17px; color: var(--ink-3); font-weight: 600; }
.price-was { font-size: 15px; color: var(--ink-3); }
.price-was s { color: var(--ink-3); }
.price-list { list-style: none; padding: 0; margin: 26px 0 28px; display: grid; gap: 13px; }
.price-list li { display: flex; gap: 11px; align-items: flex-start; font-size: 15.5px; }
.price-list li svg { width: 20px; height: 20px; color: var(--green); flex: none; margin-top: 1px; }
.price-side { display: flex; flex-direction: column; justify-content: center; gap: 22px; }
.price-side .fact { border-left: 3px solid var(--green-2); padding-left: 18px; }
.price-side .fact b { font-size: 19px; display: block; }
.price-side .fact span { color: rgba(255,255,255,.78); font-size: 15px; }

/* ---------- care team / trust ---------- */
.trust-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: center; }
@media (max-width: 860px) { .trust-grid { grid-template-columns: 1fr; gap: 28px; } }
.trust-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-soft); }
.trust-points { display: grid; gap: 18px; }
.trust-point { display: flex; gap: 15px; align-items: flex-start; }
.trust-point .ic { width: 44px; height: 44px; border-radius: 12px; background: var(--green-soft); color: var(--green-deep); display: grid; place-items: center; flex: none; }
.trust-point .ic svg { width: 22px; height: 22px; }
.trust-point h3 { font-size: 18px; }
.trust-point p { color: var(--ink-2); margin-top: 5px; font-size: 15px; }

/* ---------- FAQ ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); padding: 6px 0; }
.faq summary {
  list-style: none; cursor: pointer; padding: 20px 0; display: flex; align-items: center;
  justify-content: space-between; gap: 18px; font-weight: 700; font-size: 18.5px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .chev { width: 22px; height: 22px; color: var(--ink-3); transition: transform .2s ease; flex: none; }
.faq details[open] summary .chev { transform: rotate(180deg); color: var(--green-deep); }
.faq .ans { color: var(--ink-2); padding: 0 0 22px; font-size: 16px; max-width: 70ch; }

/* ---------- waitlist / CTA ---------- */
.cta { text-align: center; }
.cta-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 54px 40px; max-width: 760px; margin: 0 auto;
}
.cta-card h2 { font-size: clamp(30px, 4.4vw, 44px); }
.cta-card p { color: var(--ink-2); font-size: 18px; margin-top: 16px; max-width: 48ch; margin-left: auto; margin-right: auto; }
.wl-form { display: flex; gap: 12px; margin: 30px auto 0; max-width: 520px; }
@media (max-width: 540px) { .wl-form { flex-direction: column; } }
.wl-form input {
  flex: 1; padding: 15px 18px; border-radius: 999px; border: 1.5px solid var(--line);
  background: var(--paper); font-size: 16px; font-family: inherit; color: var(--ink); min-height: 52px;
}
.wl-form input:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 4px var(--green-soft); }
.wl-form .btn { min-height: 52px; }
.wl-msg { margin-top: 16px; font-size: 15px; font-weight: 600; min-height: 22px; }
.wl-msg.ok { color: var(--green-deep); }
.wl-msg.err { color: var(--amber); }
.cta-fine { font-size: 13.5px; color: var(--ink-3); margin-top: 18px; }

/* ---------- footer ---------- */
.footer { background: var(--ink); color: #E9E2D2; padding: 60px 0 34px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 820px) { .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; } }
.footer .brand { color: #fff; }
.footer-blurb { color: #B7AE99; font-size: 15px; margin-top: 16px; max-width: 32ch; }
.footer h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: #948B76; margin: 0 0 16px; font-weight: 700; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 11px; }
.footer ul a { color: #C9C0AB; font-size: 15px; }
.footer ul a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #3A3526; margin-top: 44px; padding-top: 24px; display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; color: #8E866F; font-size: 13.5px; }
.footer-bottom .disc { max-width: 70ch; }

/* ---------- reveal animation (progressive enhancement) ----------
   Content is visible by default. Only when JS is active (html.js) and the
   element hasn't yet entered the viewport (:not(.in)) is it hidden, so a JS
   failure never blanks the page. */
.reveal { transition: opacity .6s ease, transform .6s ease; }
html.js .reveal:not(.in) { opacity: 0; transform: translateY(18px); }
html.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html.js .reveal:not(.in) { opacity: 1; transform: none; }
  .reveal { transition: none; }
}