/* AI Can Make Us More Human — site styles
   Palette and type follow the Dr. Greg Watson brand identity. */

:root {
  --navy: #132333;
  --navy-2: #16394C;
  --teal-deep: #1D5F73;
  --teal: #176B73;
  --gold: #C6923E;
  --gold-light: #E6BF6C;
  --gold-dark: #B8893A;
  --graphite: #343A40;
  --muted: #5B636B;
  --linen: #FBFAF7;
  --ivory: #F7F3EA;
  --rule: #E6E0D4;
  --card-rule: #DCD6CA;
  --field-rule: #C9C2B4;

  --serif: "Lora", Georgia, "Times New Roman", serif;
  --ui: "Montserrat", "Helvetica Neue", Arial, sans-serif;
  --sans: "Inter", "Helvetica Neue", Arial, sans-serif;

  --golden-hour: linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 62%, var(--teal-deep) 100%);
  --gold-fill: linear-gradient(135deg, var(--gold-light), var(--gold) 55%, var(--gold-dark));
  --gold-text-dark: linear-gradient(100deg, var(--gold), var(--gold-light) 50%, var(--gold));
  --gold-text-light: linear-gradient(100deg, #9C7028, #BC8B36 50%, #9C7028);
  --navy-fill: linear-gradient(135deg, var(--teal-deep), var(--navy-2) 45%, var(--navy));

  --gutter: clamp(16px, 4vw, 40px);
  --section-y: clamp(64px, 9vw, 120px);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--linen);
  color: var(--graphite);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--teal); }
a:hover { color: var(--navy); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--gold-light);
  outline-offset: 3px;
}

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 10;
  background: var(--navy); color: #fff; padding: 10px 16px; border-radius: 4px;
  font-family: var(--ui); font-weight: 700; text-decoration: none;
}
.skip-link:focus { top: 12px; color: #fff; }

.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding-inline: var(--gutter); }
.wrap--narrow { max-width: 820px; }

.section { padding-block: var(--section-y); }
.section--linen { background: var(--linen); }
.section--ivory { background: var(--ivory); }
.section--golden { color: var(--ivory); background: var(--golden-hour); }

/* Type */
.eyebrow {
  display: block;
  font-family: var(--ui); font-size: 13px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--teal);
}
.section--golden .eyebrow, .hero .eyebrow, .honest .eyebrow, .page-hero .eyebrow { color: var(--gold-light); }

.h2 {
  margin: 0;
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(34px, 4.2vw, 52px); line-height: 1.1; letter-spacing: -0.01em;
  color: var(--navy); text-wrap: balance;
}
.section--golden .h2 { color: #fff; }

.body-lg { margin: 0; font-size: clamp(17px, 1.4vw, 19px); line-height: 1.7; }

.gold-text, .gold-text--deep {
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.gold-text { background-image: var(--gold-text-dark); }
.gold-text--deep { background-image: var(--gold-text-light); }

.gold-rule { width: 56px; height: 3px; border-radius: 2px; background: linear-gradient(90deg, #B98A35, var(--gold-light) 45%, var(--gold-dark)); }

/* Buttons and links */
.btn {
  display: inline-block; border: 0; border-radius: 4px; cursor: pointer;
  font-family: var(--ui); font-weight: 700; letter-spacing: 0.02em; text-decoration: none;
  line-height: 1.2;
}
.btn--gold { background: var(--gold-fill); color: var(--navy); font-size: 16px; padding: 17px 30px; }
.btn--gold:hover { color: var(--navy); filter: brightness(1.05); }
.btn--teal { background: var(--teal); color: #fff; font-size: 14px; padding: 13px 22px; }
.btn--teal:hover { color: #fff; background: #125A61; }

.underline-link {
  display: inline-block; padding: 10px 0; text-decoration: none;
  font-family: var(--ui); font-weight: 700; font-size: 15px;
  box-shadow: inset 0 -2px 0 currentColor;
}
.underline-link--gold { color: #fff; box-shadow: inset 0 -2px 0 var(--gold); }
.underline-link--gold:hover { color: var(--gold-light); }

/* Header */
.site-header { background: var(--linen); box-shadow: inset 0 -1px 0 var(--rule); }
.site-header .wrap {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 14px 32px; padding-block: 18px;
}
.wordmark { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--navy); }
.wordmark:hover { color: var(--navy); }
.wordmark__dot { width: 12px; height: 12px; border-radius: 50%; background: var(--gold-fill); flex: none; }
.wordmark__text { font-family: var(--serif); font-weight: 700; font-size: 20px; letter-spacing: -0.005em; }
.site-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 28px; font-family: var(--ui); font-size: 14px; font-weight: 600; }
.site-nav a:not(.btn) { color: var(--graphite); text-decoration: none; padding: 10px 0; }
.site-nav a:not(.btn):hover { color: var(--teal); }

/* Hero */
.hero {
  color: #fff;
  background:
    radial-gradient(55% 75% at 80% 58%, rgba(230,191,108,0.42) 0%, rgba(198,146,62,0.13) 42%, rgba(19,35,51,0) 72%),
    var(--golden-hour);
}
.hero .wrap {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 56px;
  padding-block: clamp(56px, 8vw, 104px);
}
.hero__copy { flex: 1 1 460px; max-width: 640px; display: flex; flex-direction: column; gap: 26px; }
.hero__title {
  margin: 0; font-family: var(--serif); font-weight: 700;
  font-size: clamp(48px, 6.4vw, 84px); line-height: 0.98; letter-spacing: -0.015em; color: #fff;
}
.hero__subtitle { margin: 0; font-family: var(--serif); font-style: italic; font-size: clamp(22px, 2.2vw, 28px); line-height: 1.3; }
.hero__lede { margin: 0; max-width: 34em; font-size: clamp(17px, 1.5vw, 20px); line-height: 1.6; color: var(--ivory); }
.hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-top: 6px; }
.hero__book { flex: 0 1 auto; margin: 0 auto; }

.book {
  position: relative; overflow: hidden; border-radius: 2px 4px 4px 2px;
  box-shadow: 0 40px 80px rgba(5,12,20,0.55), 0 12px 24px rgba(5,12,20,0.35), 0 0 0 1px rgba(247,243,234,0.08);
}
.book::after {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 4%;
  background: linear-gradient(90deg, rgba(255,255,255,0.16), rgba(0,0,0,0.2) 45%, rgba(0,0,0,0) 100%);
}
.book--lg { width: min(334px, 80vw); }
.book--sm { width: 196px; flex: none; }

/* Split layouts */
.split { display: flex; flex-wrap: wrap; gap: 32px 72px; }
.split__head { flex: 1 1 340px; display: flex; flex-direction: column; gap: 18px; }
.split__body { flex: 1.3 1 420px; display: flex; flex-direction: column; gap: 22px; }

.pull { margin: 0; font-family: var(--serif); font-style: italic; font-size: clamp(22px, 2vw, 26px); line-height: 1.4; color: var(--navy); }

/* Turn + quote */
.turn { display: flex; flex-wrap: wrap; align-items: center; gap: 48px 80px; }
.turn__copy { flex: 1 1 400px; display: flex; flex-direction: column; gap: 22px; }
.quote { flex: 1 1 400px; margin: 0; display: flex; flex-direction: column; gap: 20px; padding-left: clamp(0px, 3vw, 40px); }
.quote__mark { font-family: var(--serif); font-weight: 700; font-size: 96px; line-height: 0.6; height: 44px; }
.quote blockquote { margin: 0; font-family: var(--serif); font-style: italic; font-weight: 500; font-size: clamp(26px, 2.8vw, 36px); line-height: 1.3; color: var(--navy); }
.quote figcaption { font-family: var(--ui); font-size: 13px; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--teal); }

/* Principle */
.center-head { display: flex; flex-direction: column; align-items: center; gap: 18px; text-align: center; margin-bottom: 48px; }
.center-head .h2 { max-width: 16em; font-size: clamp(34px, 4.6vw, 58px); line-height: 1.08; }
.pair { display: flex; flex-wrap: wrap; gap: 24px; }
.pair__card { flex: 1 1 360px; border-radius: 6px; padding: clamp(28px, 4vw, 44px); display: flex; flex-direction: column; gap: 26px; }
.pair__card--machine { background: #fff; box-shadow: inset 0 0 0 1px var(--card-rule); }
.pair__card--human {
  color: var(--ivory);
  background: radial-gradient(70% 80% at 100% 100%, rgba(230,191,108,0.34) 0%, rgba(19,35,51,0) 70%), linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 70%, var(--teal-deep) 100%);
}
.pair__label { display: flex; align-items: center; gap: 14px; }
.pair__label h3 { margin: 0; font-family: var(--ui); font-size: 15px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--graphite); }
.pair__card--human .pair__label h3 { color: var(--gold-light); }
.marks { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 20px; font-size: 17px; line-height: 1.55; }
.marks li { display: flex; gap: 14px; align-items: flex-start; }
.marks strong { color: var(--navy); }
.pair__card--human .marks strong { color: #fff; }

/* Shapes: the square-to-circle motif */
.shape { flex: none; display: inline-block; }
.shape--square { box-shadow: inset 0 0 0 1.5px rgba(19,35,51,0.42); }
.shape--rounded { border-radius: 16%; box-shadow: inset 0 0 0 1.5px rgba(19,35,51,0.42); }
.shape--soft { border-radius: 30%; background: rgba(23,107,115,0.4); }
.shape--navy { border-radius: 50%; background: var(--navy-fill); }
.shape--ivory { border-radius: 50%; background: var(--ivory); }
.shape--gold { border-radius: 50%; background: var(--gold-fill); }
.shape--xs { width: 12px; height: 12px; margin-top: 7px; }
.shape--sm { width: 14px; height: 14px; margin-top: 7px; }
.shape--md { width: 22px; height: 22px; }
.shape--lg { width: 30px; height: 30px; }
.shape--xl { width: 34px; height: 34px; }

.motif { width: 100%; max-width: 380px; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 6px; margin: 0 auto 8px; }
.motif span { aspect-ratio: 1 / 1; }
.motif .m-dim { box-shadow: inset 0 0 0 1.5px rgba(247,243,234,0.18); }
.motif .m-line { border-radius: 16%; box-shadow: inset 0 0 0 1.5px rgba(247,243,234,0.34); }
.motif .m-soft { border-radius: 32%; background: rgba(29,95,115,0.95); }
.motif .m-solid { border-radius: 50%; background: var(--ivory); }
.motif .m-gold { border-radius: 50%; background: var(--gold-fill); }

/* Method + audience cards */
.stack-head { display: flex; flex-direction: column; gap: 18px; max-width: 760px; margin-bottom: 52px; }
.cards { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 24px; }
.card { background: #fff; border-radius: 6px; padding: 34px 32px 36px; display: flex; flex-direction: column; gap: 16px; box-shadow: 0 1px 0 var(--rule); }
.card--who { gap: 14px; }
.card__top { display: flex; align-items: center; justify-content: space-between; }
.card__num { font-family: var(--ui); font-size: 14px; font-weight: 800; letter-spacing: 0.16em; color: var(--teal); }
.card h3 { margin: 0; font-family: var(--serif); font-weight: 700; font-size: 26px; line-height: 1.2; color: var(--navy); }
.card--who h3 { font-size: 23px; line-height: 1.25; }
.card p { margin: 0; font-size: 17px; line-height: 1.65; }

/* Honest part */
.honest {
  color: var(--ivory);
  background: radial-gradient(60% 80% at 50% 110%, rgba(230,191,108,0.36) 0%, rgba(198,146,62,0.1) 45%, rgba(19,35,51,0) 75%), var(--golden-hour);
  padding-block: clamp(72px, 10vw, 128px);
}
.honest .wrap { display: flex; flex-direction: column; align-items: center; gap: 24px; text-align: center; }
.honest .h2 { font-size: clamp(34px, 4.4vw, 54px); }

/* Inside the book */
.checklist { flex: 1.4 1 440px; margin: 0; padding: 0; list-style: none; font-size: clamp(17px, 1.4vw, 19px); line-height: 1.6; }
.checklist li { display: flex; gap: 18px; align-items: flex-start; padding: 20px 0; box-shadow: inset 0 -1px 0 var(--rule); }
.checklist li:last-child { box-shadow: none; }

.who-head { margin: 0 auto 48px; max-width: 18em; text-align: center; font-size: clamp(32px, 3.8vw, 48px); line-height: 1.12; }

/* Author */
.author { display: flex; flex-wrap: wrap; align-items: stretch; gap: 40px 72px; }
.author__panel {
  flex: 1 1 360px; min-height: 380px; border-radius: 6px; padding: 40px 24px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 22px;
  background: radial-gradient(70% 70% at 85% 100%, rgba(230,191,108,0.36) 0%, rgba(19,35,51,0) 70%), linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 65%, var(--teal-deep) 100%);
}
.lockup { display: flex; align-items: center; gap: 14px; }
.lockup__rule { width: 2px; height: 70px; background: var(--gold); }
.lockup__name { display: flex; flex-direction: column; line-height: 0.95; font-family: var(--ui); }
.lockup__first { font-size: 25px; font-weight: 600; letter-spacing: 0.01em; color: #fff; }
.lockup__last { font-size: 38px; font-weight: 800; letter-spacing: 0.005em; }
.lockup__tag { font-family: var(--ui); font-size: 11px; font-weight: 600; letter-spacing: 0.4em; padding-left: 0.4em; color: #D5DCE0; text-align: center; }
.author__copy { flex: 1.2 1 420px; display: flex; flex-direction: column; justify-content: center; gap: 20px; }
.author__copy .underline-link { align-self: flex-start; color: var(--teal); }

/* Sign-up */
.signup {
  color: var(--ivory);
  background: radial-gradient(55% 80% at 12% 70%, rgba(230,191,108,0.36) 0%, rgba(198,146,62,0.1) 45%, rgba(19,35,51,0) 75%), var(--golden-hour);
}
.signup .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 48px 72px; padding-block: clamp(64px, 9vw, 112px); }
.signup__intro { flex: 1 1 440px; display: flex; flex-wrap: wrap; align-items: center; gap: 32px 40px; }
.signup__text { flex: 1 1 220px; display: flex; flex-direction: column; gap: 18px; }
.signup__text .h2 { line-height: 1.08; }

.form-card {
  flex: 1 1 380px; max-width: 480px; background: var(--linen); color: var(--navy);
  border-radius: 8px; padding: clamp(28px, 4vw, 40px);
  display: flex; flex-direction: column; gap: 18px; box-shadow: 0 24px 60px rgba(5,12,20,0.35);
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-family: var(--ui); font-size: 13px; font-weight: 700; letter-spacing: 0.04em; color: var(--navy); }
.field input, .field textarea {
  width: 100%; border: 1.5px solid var(--field-rule); border-radius: 4px; background: #fff;
  font-family: var(--sans); font-size: 17px; color: var(--navy);
}
.field input { height: 52px; padding: 0 16px; }
.field textarea { min-height: 160px; padding: 14px 16px; resize: vertical; line-height: 1.5; }
.form-card .btn--gold { width: 100%; height: 58px; margin-top: 4px; font-size: 16px; font-weight: 800; letter-spacing: 0.03em; }
.form-card .btn--gold[disabled] { opacity: 0.7; cursor: progress; }
.fine-print { margin: 0; font-size: 13px; line-height: 1.55; color: var(--muted); }
.form-status { margin: 0; font-size: 15px; line-height: 1.5; color: #8A2E22; }
.form-status:empty { display: none; }
.form-done { display: flex; flex-direction: column; gap: 12px; }
.form-done h3 { margin: 0; font-family: var(--serif); font-weight: 700; font-size: 28px; line-height: 1.2; color: var(--navy); }
.form-done p { margin: 0; font-size: 17px; line-height: 1.6; color: var(--graphite); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* Footer */
.site-footer { background: var(--linen); box-shadow: inset 0 1px 0 var(--rule); }
.site-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 40px; padding-block: 40px 48px; }
.site-footer__brand { display: flex; flex-direction: column; gap: 8px; }
.site-footer__title { font-family: var(--serif); font-size: 17px; font-weight: 700; color: var(--navy); }
.site-footer__title em { font-weight: 400; }
.site-footer__legal { font-size: 14px; color: var(--muted); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 26px; font-family: var(--ui); font-size: 14px; font-weight: 600; }
.site-footer nav a { color: var(--graphite); text-decoration: none; padding: 10px 0; }
.site-footer nav a:hover { color: var(--teal); }
.site-footer nav a.accent { color: var(--teal); }

/* Simple content pages (privacy, contact, 404) */
.page-hero { color: #fff; background: radial-gradient(60% 90% at 85% 100%, rgba(230,191,108,0.34) 0%, rgba(19,35,51,0) 70%), var(--golden-hour); }
.page-hero .wrap { padding-block: clamp(48px, 7vw, 88px); display: flex; flex-direction: column; gap: 16px; }
.page-hero h1 { margin: 0; font-family: var(--serif); font-weight: 700; font-size: clamp(38px, 5vw, 60px); line-height: 1.05; color: #fff; }
.page-hero p { margin: 0; max-width: 40em; font-size: clamp(17px, 1.4vw, 19px); color: var(--ivory); }
.prose { max-width: 720px; }
.prose h2 { margin: 40px 0 12px; font-family: var(--serif); font-weight: 700; font-size: 26px; line-height: 1.25; color: var(--navy); }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose ul { margin: 0 0 16px; }
.prose ul { padding-left: 22px; }
.prose li { margin-bottom: 8px; }
.contact-layout { display: flex; flex-wrap: wrap; gap: 40px 72px; align-items: flex-start; }
.contact-layout .prose { flex: 1 1 320px; }
.contact-layout .form-card { box-shadow: 0 0 0 1px var(--card-rule); background: #fff; }

@media (max-width: 640px) {
  .site-nav a:not(.btn) { display: none; }
  .site-header .wrap { padding-block: 14px; }
  .quote { padding-left: 0; }
  .lockup img { width: 78px; height: auto; }
  .lockup__rule { height: 56px; }
  .lockup__first { font-size: 20px; }
  .lockup__last { font-size: 31px; }
  .book--sm { width: 150px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}