:root {
  --ink: #1a1812;
  --ink-soft: #5a5247;
  --dim: #948a7a;
  --paper: #f9f6ef;
  --paper-2: #f3efe5;
  --line: #e6dfd0;
  --accent: #b85c38;
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--ink); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}

h1 { font-size: 64px; line-height: 1.05; margin-bottom: 24px; }
h2 { font-size: 38px; line-height: 1.15; margin-bottom: 22px; }
h3 { font-size: 22px; line-height: 1.25; margin-bottom: 10px; font-weight: 500; }

.dim { color: var(--ink-soft); }
.small { font-size: 13px; }

/* topbar */
.topbar {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  padding: 18px 0;
  position: sticky; top: 0; z-index: 10;
}
.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand {
  font-family: var(--serif);
  font-size: 24px;
  font-style: italic;
  letter-spacing: -0.02em;
}
.brand-dot { color: var(--accent); }
nav { display: flex; gap: 28px; font-size: 14px; }
nav a { color: var(--ink-soft); }
nav a:hover { color: var(--ink); text-decoration: none; }
nav a.cta-link {
  background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 100px;
}
nav a.cta-link:hover { background: var(--accent); }

/* hero */
.hero { padding: 100px 0 80px; }
.hero h1 { max-width: 850px; }
.lede { font-size: 21px; max-width: 720px; color: var(--ink-soft); margin-bottom: 36px; }
.hero-cta { display: flex; gap: 14px; margin-bottom: 22px; }
.hero-meta { font-size: 14px; color: var(--dim); }

/* buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 100px;
  font-weight: 500;
  font-size: 15px;
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: all .15s ease;
}
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); text-decoration: none; }

/* chat demo */
.chat-demo {
  background: var(--paper-2);
  padding: 90px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.chat-demo .container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 70px;
  align-items: center;
}
.phone {
  background: var(--ink);
  border-radius: 32px;
  padding: 18px 14px;
  box-shadow: 0 20px 60px rgba(26, 24, 18, 0.18);
}
.phone-screen {
  background: #ece5d4;
  border-radius: 22px;
  padding: 18px 12px;
  min-height: 360px;
  display: flex; flex-direction: column; gap: 8px;
}
.msg {
  max-width: 80%;
  padding: 9px 13px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.4;
}
.msg.in { background: white; align-self: flex-start; border-bottom-left-radius: 4px; }
.msg.out { background: #d4edd8; align-self: flex-end; border-bottom-right-radius: 4px; }
.msg .i { font-style: italic; color: var(--ink-soft); }
.chat-side h2 { margin-bottom: 18px; }
.chat-side p { font-size: 17px; margin-bottom: 16px; color: var(--ink-soft); }

/* how */
.how { padding: 100px 0; }
.how-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px;
  margin-top: 48px;
}
.how-card { padding: 8px 0; }
.how-num {
  font-family: var(--serif);
  font-size: 32px;
  color: var(--accent);
  font-style: italic;
  margin-bottom: 14px;
}
.how-card p { color: var(--ink-soft); }

/* features */
.features {
  background: var(--paper-2);
  padding: 100px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.features-list {
  list-style: none;
  max-width: 720px;
  margin-top: 36px;
  font-size: 17px;
  line-height: 1.7;
}
.features-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
}
.features-list li:last-child { border: 0; }
.features-list strong { color: var(--ink); font-weight: 500; }

/* pricing */
.pricing { padding: 100px 0; text-align: center; }
.price-card {
  max-width: 440px;
  margin: 40px auto 24px;
  padding: 44px 36px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.price-num {
  font-family: var(--serif);
  font-size: 72px;
  line-height: 1;
  margin-bottom: 24px;
}
.price-num span { font-size: 20px; color: var(--ink-soft); margin-left: 4px; }
.price-features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
}
.price-features li {
  padding: 10px 0;
  font-size: 16px;
  color: var(--ink-soft);
  border-bottom: 1px dashed var(--line);
}
.price-features li:last-child { border: 0; }
.pricing-note { font-size: 14px; color: var(--dim); }

/* faq */
.faq { padding: 100px 0; }
.faq-item {
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
.faq-item:last-child { border: 0; }
.faq-item h3 { font-size: 20px; margin-bottom: 8px; }
.faq-item p { color: var(--ink-soft); font-size: 16px; max-width: 760px; }

/* start */
.start { padding: 100px 0; text-align: center; background: var(--ink); color: var(--paper); }
.start h2 { color: var(--paper); }
.start p { color: rgba(249, 246, 239, 0.7); font-size: 18px; margin-bottom: 28px; }
.signup {
  display: flex; gap: 10px; max-width: 560px; margin: 0 auto 16px;
  flex-wrap: wrap; justify-content: center;
}
.signup input {
  flex: 1; min-width: 200px;
  padding: 14px 18px;
  border-radius: 100px;
  border: 1px solid rgba(249, 246, 239, 0.2);
  background: transparent;
  color: var(--paper);
  font-family: inherit; font-size: 15px;
}
.signup input::placeholder { color: rgba(249, 246, 239, 0.4); }
.signup input:focus { outline: none; border-color: var(--accent); }
.signup .btn.primary {
  background: var(--paper); color: var(--ink); border-color: var(--paper);
}
.signup .btn.primary:hover { background: var(--accent); color: var(--paper); border-color: var(--accent); }
.start .dim { color: rgba(249, 246, 239, 0.5); }

/* footer */
footer { padding: 40px 0; border-top: 1px solid var(--line); font-size: 14px; color: var(--ink-soft); }
footer p { margin-bottom: 4px; }

/* responsive */
@media (max-width: 760px) {
  h1 { font-size: 42px; }
  h2 { font-size: 30px; }
  nav a:not(.cta-link) { display: none; }
  .chat-demo .container { grid-template-columns: 1fr; gap: 40px; }
  .phone { max-width: 280px; margin: 0 auto; }
  .how-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero { padding: 60px 0 50px; }
  .lede { font-size: 18px; }
}