:root {
  --paper: #f3efe6;
  --paper-2: #e9e3d6;
  --sheet: #fbf8f1;
  --ink: #161411;
  --ink-2: #3a3731;
  --muted: #6d6960;
  --line: rgba(22, 20, 17, 0.1);
  --line-strong: rgba(22, 20, 17, 0.18);
  --accent: #1b3d38;
  --accent-hover: #132e2a;
  --accent-soft: rgba(27, 61, 56, 0.08);
  --warn: #9a3b12;
  --warn-soft: rgba(154, 59, 18, 0.08);
  --ok: #1b3d38;
  --shadow: 0 24px 60px -28px rgba(22, 20, 17, 0.28);
  --radius: 18px;
  --serif: "Newsreader", "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --sans: "Instrument Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --nav-h: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; letter-spacing: -0.03em; margin: 0; }
p { margin: 0; }

.wrap {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 14px;
}

/* ── Nav ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--paper) 82%, white);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.logo {
  height: 28px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 14px;
  color: var(--ink-2);
  font-weight: 500;
}

.nav-links a:hover { color: var(--ink); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang {
  display: flex;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  overflow: hidden;
  background: var(--sheet);
}

.lang button {
  border: 0;
  background: transparent;
  padding: 7px 11px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.lang button.is-on {
  background: var(--ink);
  color: var(--sheet);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: #f7f3ea;
}

.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn-ghost:hover { background: rgba(22, 20, 17, 0.04); }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--sheet);
}

/* ── Hero ── */
.hero {
  padding: 72px 0 36px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(40px, 5.4vw, 68px);
  line-height: 1.04;
  max-width: 14ch;
  margin-bottom: 22px;
}

.hero h1 em {
  font-style: italic;
  font-weight: 450;
  color: color-mix(in srgb, var(--ink) 72%, var(--accent));
}

.lead {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 42ch;
  margin-bottom: 28px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.trust-line {
  margin: 0 0 28px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 32px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.stat b {
  display: block;
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.stat span {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ── Chat mock ── */
.device {
  background: var(--sheet);
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  box-shadow: var(--shadow);
  overflow: hidden;
  min-height: 560px;
  display: flex;
  flex-direction: column;
}

.device-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: #f7f4ec;
}

.device-bar strong {
  font-size: 13px;
  font-weight: 600;
}

.device-bar span {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dots { display: flex; gap: 6px; }
.dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--paper-2);
  display: block;
}
.dots i:nth-child(1) { background: #d9cbb6; }
.dots i:nth-child(2) { background: #c8d0c2; }
.dots i:nth-child(3) { background: #c9b8a8; }

.prompts {
  display: flex;
  gap: 8px;
  padding: 12px 14px 0;
  overflow: auto;
}

.chip {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--ink-2);
}

.chip.is-on,
.chip:hover {
  background: var(--accent);
  color: #f7f3ea;
  border-color: var(--accent);
}

.thread {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: auto;
}

.bubble {
  max-width: 92%;
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.5;
}

.bubble-user {
  align-self: flex-end;
  background: var(--ink);
  color: #f6f2ea;
}

.bubble-ai {
  align-self: flex-start;
  background: #f0ebe0;
  color: var(--ink);
}

.bubble-ai h4 {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.bubble-ai .sub {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.warn-box {
  margin: 10px 0 0;
  padding: 9px 10px;
  border-left: 2px solid var(--warn);
  background: var(--warn-soft);
  color: var(--warn);
  font-size: 12.5px;
}

.sources {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.source {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: -0.02em;
  padding: 5px 8px;
  border-radius: 7px;
  background: var(--sheet);
  border: 1px solid var(--line);
}

.composer {
  display: flex;
  gap: 8px;
  padding: 12px 14px 14px;
  border-top: 1px solid var(--line);
}

.composer input {
  flex: 1;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 11px 12px;
  font: inherit;
  font-size: 13px;
  color: var(--muted);
}

.composer .send {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: #f7f3ea;
}

/* ── Sections ── */
section { position: relative; z-index: 1; scroll-margin-top: 88px; }

.card {
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.price.is-featured .btn-primary {
  background: #f6f1e8;
  color: var(--ink);
}

.price.is-featured .btn-primary:hover {
  background: #fff;
}

.band {
  padding: 88px 0;
}

.band-alt {
  background: color-mix(in srgb, var(--paper-2) 55%, var(--paper));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.08;
  margin-bottom: 14px;
}

.section-head p {
  color: var(--ink-2);
  font-size: 17px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.card {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.card h3 {
  font-size: 26px;
  margin: 8px 0 10px;
}

.card p { color: var(--ink-2); font-size: 15px; }

.step-no {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.feature-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.feature-list li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  font-size: 15px;
  color: var(--ink-2);
}

.feature-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* ── Knowledge ── */
.kb-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
}

.big-num {
  font-family: var(--serif);
  font-size: clamp(48px, 6vw, 72px);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.kb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.kb-table th,
.kb-table td {
  text-align: left;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.kb-table th {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.kb-table td:last-child,
.kb-table th:last-child { text-align: right; font-variant-numeric: tabular-nums; }

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.pill {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}

.note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 16px;
}

/* ── Handoff ── */
.layers {
  display: grid;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  background: var(--sheet);
}

.layer {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px;
  padding: 26px 28px;
  border-top: 1px solid var(--line);
}

.layer:first-child { border-top: 0; }

.layer b {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ── Use cases ── */
.cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.case {
  padding: 22px;
  border-radius: var(--radius);
  background: var(--sheet);
  border: 1px solid var(--line);
  min-height: 210px;
}

.case span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.case h3 {
  font-size: 22px;
  margin: 10px 0 8px;
}

.case p { font-size: 14.5px; color: var(--ink-2); }

/* ── Pricing ── */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.price {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px 24px 24px;
  display: flex;
  flex-direction: column;
  min-height: 420px;
}

.price.is-featured {
  background: var(--ink);
  color: #f6f1e8;
  border-color: var(--ink);
}

.price.is-featured p,
.price.is-featured li { color: rgba(246, 241, 232, 0.72); }

.price.is-featured .kicker { color: #d7c4a8; }

.price .amount {
  font-family: var(--serif);
  font-size: 44px;
  letter-spacing: -0.04em;
  margin: 8px 0 4px;
}

.price .amount small {
  font-size: 16px;
  font-family: var(--sans);
  letter-spacing: 0;
  color: inherit;
  opacity: 0.6;
}

.price ul {
  list-style: none;
  margin: 18px 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
  flex: 1;
  font-size: 14.5px;
}

.price-note {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin-top: 22px;
}

/* ── FAQ ── */
.faq {
  display: grid;
  gap: 10px;
  max-width: 820px;
}

.faq details {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 4px 18px;
}

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-weight: 600;
  font-size: 16px;
}

.faq summary::-webkit-details-marker { display: none; }

.faq details p {
  padding: 0 0 16px;
  color: var(--ink-2);
  font-size: 15px;
}

/* ── CTA / footer ── */
.finale {
  padding: 96px 0 80px;
  text-align: center;
}

.finale h2 {
  font-size: clamp(36px, 5vw, 56px);
  max-width: 16ch;
  margin: 0 auto 16px;
}

.finale p {
  max-width: 48ch;
  margin: 0 auto 28px;
  color: var(--ink-2);
}

.footer {
  border-top: 1px solid var(--line);
  padding: 36px 0 48px;
  color: var(--muted);
  font-size: 13px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
}

.footer strong { color: var(--ink); display: block; margin-bottom: 10px; font-size: 13px; }

.legal {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  max-width: 80ch;
  line-height: 1.6;
  font-size: 12px;
}

.shopify-mark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}

.shopify-mark svg { width: 16px; height: 16px; }

.mobile-menu { display: none; }

@media (max-width: 980px) {
  .hero-grid,
  .split,
  .kb-grid,
  .grid-3,
  .grid-2,
  .cases,
  .price-grid,
  .footer-grid,
  .layer {
    grid-template-columns: 1fr;
  }

  .nav-links { display: none; }

  .nav-actions .btn-primary { display: none; }

  .nav-toggle { display: grid; place-items: center; }

  .mobile-menu.is-open {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 16px 20px 20px;
    background: var(--sheet);
    border-bottom: 1px solid var(--line);
  }

  .hero { padding-top: 40px; }
  .hero h1 { max-width: none; }
  .price { min-height: 0; }
}

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