:root {
  --bg: #f6f4ef;
  --paper: #ffffff;
  --ink: #1f2a2e;
  --muted: #5d6a6e;
  --line: #e3e0d8;
  --brand: #1d5c4d;
  --brand-2: #2f7d69;
  --brand-soft: #e5efeb;
  --accent: #d9902f;
  --danger: #b4443a;
  --radius: 14px;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--brand); }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 640px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }

/* nav */
.nav { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; }
.brand { font-family: var(--serif); font-weight: 600; font-size: 1.2rem; color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; gap: 10px; }
.brand::before { content: ""; width: 26px; height: 26px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, var(--brand-2), var(--brand)); box-shadow: 10px 0 0 -3px var(--accent); margin-right: 8px; }
.nav a.link { color: var(--ink); text-decoration: none; margin-left: 22px; font-size: .95rem; }

/* buttons */
.btn { appearance: none; border: 0; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 24px; border-radius: 999px; background: var(--brand); color: #fff; font: 600 1rem var(--sans); text-decoration: none; transition: background .15s, transform .1s; }
.btn:hover { background: var(--brand-2); }
.btn:active { transform: translateY(1px); }
.btn.ghost { background: transparent; color: var(--brand); box-shadow: inset 0 0 0 1.5px var(--brand); }
.btn.ghost:hover { background: var(--brand-soft); }
.btn.small { padding: 8px 14px; font-size: .875rem; }
.btn.danger { background: var(--danger); }
.btn[disabled] { opacity: .5; cursor: default; }

/* hero */
.hero { padding: 48px 0 72px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero .lede { font-size: 1.2rem; color: var(--muted); max-width: 34em; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.eyebrow { display: inline-block; font-size: .8rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--brand); background: var(--brand-soft); padding: 5px 12px; border-radius: 999px; margin-bottom: 18px; }
.mock { background: var(--paper); border-radius: 20px; padding: 22px; box-shadow: 0 20px 50px -25px rgba(31,42,46,.35); border: 1px solid var(--line); }
.mock .row { display: flex; gap: 10px; margin-bottom: 12px; }
.bubble { padding: 10px 14px; border-radius: 16px; font-size: .93rem; max-width: 85%; }
.bubble.host { background: var(--brand-soft); border-bottom-left-radius: 4px; }
.bubble.me { background: var(--ink); color: #fff; margin-left: auto; border-bottom-right-radius: 4px; }
.mock .intro { margin-top: 16px; border-top: 1px dashed var(--line); padding-top: 14px; font-size: .9rem; }
.mock .intro strong { font-family: var(--serif); }

section { padding: 64px 0; }
section.alt { background: var(--paper); border-block: 1px solid var(--line); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 30px; }
.step { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
section.alt .step { background: var(--bg); }
.step .n { width: 34px; height: 34px; border-radius: 50%; background: var(--brand); color: #fff; display: grid; place-items: center; font-weight: 700; margin-bottom: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.chip { background: var(--paper); border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; font-size: .93rem; }

.pricing { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; max-width: 760px; margin-top: 30px; }
.plan { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.plan.featured { background: var(--brand); color: #fff; border-color: var(--brand); }
.plan .price { font-family: var(--serif); font-size: 2.6rem; font-weight: 600; line-height: 1; margin: 10px 0 6px; }
.plan ul { padding-left: 18px; margin: 14px 0 0; }

/* form */
.card { background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 30px; box-shadow: 0 10px 30px -20px rgba(31,42,46,.3); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label { display: block; font-size: .875rem; font-weight: 600; margin-bottom: 14px; }
label span { display: block; margin-bottom: 6px; }
input, textarea, select { width: 100%; font: 1rem var(--sans); padding: 11px 13px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--brand-2); outline-offset: 0; border-color: transparent; }
label.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
label.check input { width: auto; margin-top: 4px; }
.msg { padding: 12px 14px; border-radius: 10px; margin-top: 12px; font-size: .95rem; }
.msg.err { background: #f8e6e3; color: var(--danger); }
.msg.ok { background: var(--brand-soft); color: var(--brand); }

details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 10px 0 0; color: var(--muted); }
footer { padding: 36px 0 48px; color: var(--muted); font-size: .875rem; }

.card-page { padding-top: 40px; }
.card-page .brand { margin-bottom: 22px; }

@media (max-width: 820px) {
  .hero, .steps, .pricing { grid-template-columns: 1fr; }
  .hero { padding-top: 16px; gap: 30px; }
  .nav a.link { display: none; }
  .grid2 { grid-template-columns: 1fr; gap: 0; }
  .card { padding: 22px; }
}