:root {
  --ink: #16211c;
  --ink-2: #46554e;
  --ink-3: #6d7a73;
  --surface: #fbfcfb;
  --surface-2: #f1f4f2;
  --line: #dfe5e1;
  --brand: #0c7a54;
  --brand-dark: #0a5e42;
  --brand-tint: #e3f2ec;
  --accent: #2a78d6;
  --warn: #b4540a;
  --radius: 14px;
  --max: 1080px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

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

/* Header */
header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(251, 252, 251, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; max-width: var(--max); margin: 0 auto;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; color: var(--ink); }
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 0.95rem;
}
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { color: var(--ink-2); font-size: 0.95rem; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }

.btn {
  display: inline-block; padding: 11px 22px; border-radius: 10px;
  font-weight: 600; font-size: 0.95rem; transition: background 0.15s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); text-decoration: none; }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--ink-3); text-decoration: none; }

/* Hero */
.hero { padding: 80px 0 40px; text-align: center; }
.hero .kicker {
  display: inline-block; background: var(--brand-tint); color: var(--brand-dark);
  font-weight: 600; font-size: 0.85rem; padding: 5px 14px; border-radius: 999px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.3rem); line-height: 1.12;
  letter-spacing: -0.02em; max-width: 800px; margin: 0 auto 18px;
}
.hero p.lede {
  font-size: 1.15rem; color: var(--ink-2); max-width: 640px; margin: 0 auto 30px;
}
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-note { margin-top: 14px; font-size: 0.85rem; color: var(--ink-3); }

/* Product mock */
.mock { margin: 56px auto 0; max-width: 920px; padding: 0 24px; }
.mock svg { width: 100%; height: auto; display: block; border-radius: var(--radius); box-shadow: 0 24px 60px rgba(22, 33, 28, 0.14); }

/* Sections */
section { padding: 72px 0; }
section.alt { background: var(--surface-2); }
.section-head { text-align: center; max-width: 660px; margin: 0 auto 48px; }
.section-head h2 { font-size: 1.9rem; letter-spacing: -0.01em; margin-bottom: 10px; }
.section-head p { color: var(--ink-2); }

.grid {
  display: grid; gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px;
}
.alt .card { border-color: transparent; box-shadow: 0 1px 3px rgba(22,33,28,0.06); }
.card .icon {
  width: 42px; height: 42px; border-radius: 10px; background: var(--brand-tint);
  display: grid; place-items: center; margin-bottom: 16px; font-size: 1.2rem;
}
.card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.card p { color: var(--ink-2); font-size: 0.95rem; }
.card ul { color: var(--ink-2); font-size: 0.95rem; padding-left: 18px; margin-top: 8px; }
.card li { margin-bottom: 4px; }

/* Steps */
.steps { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); counter-reset: step; }
.step { position: relative; padding: 26px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.step::before {
  counter-increment: step; content: counter(step);
  display: grid; place-items: center; width: 34px; height: 34px;
  border-radius: 50%; background: var(--brand); color: #fff; font-weight: 700;
  margin-bottom: 14px;
}
.step h3 { font-size: 1.05rem; margin-bottom: 6px; }
.step p { color: var(--ink-2); font-size: 0.95rem; }

/* Principles */
.principles { max-width: 760px; margin: 0 auto; }
.principle {
  display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line);
}
.principle:last-child { border-bottom: none; }
.principle .tick { color: var(--brand); font-weight: 700; flex-shrink: 0; }
.principle p { color: var(--ink-2); font-size: 0.97rem; }
.principle strong { color: var(--ink); }

/* CTA */
.cta-band { text-align: center; }
.cta-band h2 { font-size: 1.9rem; margin-bottom: 12px; }
.cta-band p { color: var(--ink-2); margin-bottom: 26px; }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 36px 0; }
.foot {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 14px; max-width: var(--max); margin: 0 auto; padding: 0 24px;
  color: var(--ink-3); font-size: 0.9rem;
}
.foot a { color: var(--ink-2); margin-left: 18px; }

/* Legal pages */
.legal { max-width: 760px; margin: 0 auto; padding: 56px 24px 80px; }
.legal h1 { font-size: 2rem; margin-bottom: 6px; }
.legal .updated { color: var(--ink-3); font-size: 0.9rem; margin-bottom: 34px; }
.legal h2 { font-size: 1.25rem; margin: 34px 0 10px; }
.legal p, .legal li { color: var(--ink-2); }
.legal ul { padding-left: 22px; margin: 10px 0; }
.legal li { margin-bottom: 6px; }

@media (max-width: 640px) {
  .nav-links a:not(.btn) { display: none; }
  .nav { padding: 12px 16px; }
  .logo { font-size: 1rem; }
  .btn { padding: 9px 14px; font-size: 0.9rem; }
  section { padding: 52px 0; }
  .hero { padding: 56px 0 28px; }
}