:root {
  --ink: #1E1A17;
  --cream: #F6F1E7;
  --sand: #ECE4D4;
  --paper: #FBF8F2;
  --line: #DDD2BF;
  --body: #4A4038;
  --muted: #6E6257;
  --copper: #9C4221;
  --copper-dark: #7E3519;
  --amber: #E0A170;
  --on-dark: #F6F1E7;
  --on-dark-soft: #CDBFAC;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --wrap: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--cream); color: var(--ink); font: 400 17px/1.55 var(--sans); -webkit-font-smoothing: antialiased; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.12; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(44px, 7vw, 80px); }
h2 { font-size: clamp(30px, 4vw, 44px); margin-bottom: 28px; }
h3 { font-size: 22px; }
p { margin: 0; }
a { color: inherit; }
ul, ol { margin: 0; padding: 0; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
section { padding: 64px 0; }
.band { background: var(--sand); }
.dark { background: var(--ink); color: var(--on-dark); }

/* nav */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(246, 241, 231, 0.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 600 21px/1 var(--serif); color: var(--ink); }
.brand-mark { width: 26px; height: 26px; color: var(--ink); }
.nav-links { display: flex; align-items: center; gap: 24px; font-size: 15px; font-weight: 500; }
.nav-links a:not(.btn) { text-decoration: none; color: var(--body); }
.nav-links a:not(.btn):hover { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }

/* buttons */
.btn { display: inline-block; background: var(--copper); color: #FFF8EE; text-decoration: none; font-weight: 600; font-size: 16px; padding: 13px 22px; border-radius: 999px; border: 2px solid var(--copper); transition: background .15s, border-color .15s; }
.btn:hover { background: var(--copper-dark); border-color: var(--copper-dark); color: #FFF8EE; }
.btn-small { padding: 8px 16px; font-size: 14px; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); border-color: var(--ink); color: var(--cream); }
.btn-light { background: var(--amber); border-color: var(--amber); color: var(--ink); }
.btn-light:hover { background: #EBB68D; border-color: #EBB68D; color: var(--ink); }
.btn-ghost-light { background: transparent; color: var(--on-dark); border-color: var(--on-dark-soft); }
.btn-ghost-light:hover { background: var(--on-dark); border-color: var(--on-dark); color: var(--ink); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* hero */
.hero { padding: 56px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.lede { font-size: 20px; color: var(--body); margin-top: 20px; max-width: 34em; }
.fine { font-size: 15px; color: var(--muted); margin-top: 18px; }

.chat { margin: 0; background: var(--ink); color: var(--on-dark); border-radius: 24px; padding: 20px; box-shadow: 0 24px 48px -24px rgba(30, 26, 23, 0.45); }
.chat-head { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--on-dark-soft); padding: 2px 4px 14px; border-bottom: 1px solid #3A332D; margin-bottom: 16px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #7FC29B; }
.bubble { border-radius: 16px; padding: 14px 16px; font-size: 16px; line-height: 1.5; }
.bubble.you { background: var(--amber); color: var(--ink); margin-left: auto; max-width: 85%; width: fit-content; font-weight: 500; }
.bubble.ai { background: #2C2622; margin-top: 12px; display: grid; gap: 10px; }
.bubble.ai b { color: #FFF8EE; }
.chat figcaption { font-size: 13px; color: var(--on-dark-soft); margin-top: 14px; padding: 0 4px; }

/* problem */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.chips li { background: var(--paper); border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; font-weight: 500; font-size: 15px; }
.prose { display: grid; gap: 14px; color: var(--body); }
.quote { font: 400 30px/1.2 var(--serif); color: var(--copper); }

/* cards */
.cards { display: grid; gap: 20px; }
.cards.four { grid-template-columns: repeat(4, 1fr); }
.cards.three { grid-template-columns: repeat(3, 1fr); }
.cards.two { grid-template-columns: repeat(2, 1fr); gap: 24px 48px; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 24px; display: grid; gap: 10px; align-content: start; }
.card p, .card li { color: var(--body); }
.card ul { list-style: none; display: grid; gap: 8px; }
.card li { padding-left: 18px; position: relative; }
.card li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 7px; height: 7px; border-radius: 50%; background: var(--copper); }
.card-dark { background: var(--ink); border-color: var(--ink); }
.card-dark h3 { color: var(--on-dark); }
.card-dark p { color: var(--on-dark-soft); }
.card-dark .term { color: var(--amber); }
.term { font-size: 14px; font-weight: 600; color: var(--copper); }
.q { background: var(--paper); border-radius: 18px; padding: 22px 24px; display: grid; gap: 8px; align-content: start; }
.q h3 { font-weight: 500; font-size: 21px; line-height: 1.25; }
.q p { font-size: 15px; color: var(--muted); }
.ruled article { border-top: 3px solid var(--copper); padding-top: 18px; display: grid; gap: 8px; align-content: start; }
.ruled p { color: var(--body); }
.after { margin-top: 24px; color: var(--body); font-size: 18px; }

/* dark sections */
.dark h2, .dark h3 { color: var(--on-dark); }
.dark .ruled article { border-top-color: #5A4F45; }
.dark .ruled p, .dark .after { color: var(--on-dark-soft); }
.statement { font: 400 clamp(24px, 3vw, 32px)/1.25 var(--serif); color: var(--amber); max-width: 30em; margin-bottom: 32px; }
.compare { border-top: 1px solid #3A332D; }
.compare .row { display: grid; grid-template-columns: 0.8fr 1fr 1fr; gap: 20px; padding: 14px 0; border-bottom: 1px solid #3A332D; }
.compare .row span:nth-child(2) { color: var(--on-dark-soft); }
.compare .row.head span { font-size: 14px; font-weight: 600; color: var(--on-dark-soft); }
.compare .row.head span:last-child { color: var(--amber); }
.compare [role="rowheader"] { font-weight: 600; }
.contact { margin-top: 20px; font-size: 15px; color: var(--on-dark-soft); }

/* steps: a sequence, so they keep their order */
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.steps li { counter-increment: step; border-top: 3px solid var(--copper); padding-top: 16px; display: grid; gap: 8px; align-content: start; }
.steps li::before { content: counter(step); font: 600 34px/1 var(--serif); color: var(--copper); }
.steps p { color: var(--body); }

/* footer */
.footer { background: var(--ink); color: var(--on-dark-soft); border-top: 1px solid #3A332D; font-size: 14px; }
.footer-inner { display: flex; justify-content: space-between; padding-top: 22px; padding-bottom: 22px; }

/* tablet */
@media (max-width: 960px) {
  .hero-grid, .two-col { grid-template-columns: 1fr; gap: 36px; }
  .cards.four, .steps { grid-template-columns: repeat(2, 1fr); }
  .cards.three { grid-template-columns: 1fr 1fr; }
}

/* phone */
@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  section { padding: 44px 0; }
  .hero { padding: 32px 0 44px; }
  h2 { margin-bottom: 20px; }
  .lede { font-size: 18px; }
  .nav-links a:not(.btn) { display: none; }
  .cards.four, .cards.three, .cards.two, .steps { grid-template-columns: 1fr; }
  .cards.two { gap: 24px; }
  .compare .row { grid-template-columns: 1fr 1fr; gap: 6px 14px; }
  .compare .row [role="rowheader"] { grid-column: 1 / -1; }
  .compare .row.head span:first-child { display: none; }
  .cta-row .btn { width: 100%; text-align: center; }
  .footer-inner { flex-direction: column; gap: 4px; }
}