:root {
  color-scheme: light dark;
  --bg: #FAFAF7;
  --surface: #FFFFFF;
  --ink: #1C1C1E;
  --ink-dim: #3C3C43;
  --ink-faint: #8E8E93;
  --border: #E7E6E1;
  --brand: #4A7A59;
  --brand-tint: #E8F0EA;
  --warm: #F2994A;
  --warm-tint: #FFF2E6;
  --warm-ink: #8A4A1D;
  --warm-border: #FFD4B2;
  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 20px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B0B0E;
    --surface: #1C1C1E;
    --ink: #F5F5F7;
    --ink-dim: #D1D1D6;
    --ink-faint: #8E8E93;
    --border: #2C2C2E;
    --brand-tint: #1F3024;
    --warm-tint: #3A2314;
    --warm-ink: #FFC48A;
    --warm-border: #5C3A1C;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Inter, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  font-size: 17px;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(1.4) blur(8px);
  -webkit-backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 18px;
  color: var(--ink);
  letter-spacing: -0.2px;
}
.brand-dot {
  width: 32px; height: 32px; border-radius: 9px;
  background: var(--brand-tint);
  display: flex; align-items: center; justify-content: center;
}
.brand svg { width: 18px; height: 18px; }
.nav-links { display: flex; gap: 20px; margin-left: auto; align-items: center; }
.nav-links a {
  color: var(--ink-dim);
  font-size: 15px;
  font-weight: 500;
}
.nav-links a.active { color: var(--ink); }
.nav-cta {
  background: var(--ink);
  color: var(--bg) !important;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
}
.nav-cta:hover { text-decoration: none; opacity: 0.9; }
@media (max-width: 680px) {
  .nav-inner { flex-wrap: wrap; }
  .nav-links { gap: 14px; width: 100%; margin-left: 0; justify-content: flex-start; overflow-x: auto; }
  .nav-links a { white-space: nowrap; font-size: 14px; }
}

/* Page shell */
main { flex: 1; }
.container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 48px 24px;
}
.narrow { max-width: 760px; margin: 0 auto; }

h1, h2, h3, h4 { color: var(--ink); letter-spacing: -0.5px; margin: 0; }
h1 {
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.08;
  font-weight: 700;
  margin-bottom: 20px;
}
h2 {
  font-size: clamp(26px, 3.5vw, 34px);
  line-height: 1.2;
  font-weight: 600;
  margin-top: 56px;
  margin-bottom: 14px;
}
h3 {
  font-size: 20px;
  line-height: 1.3;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 8px;
}
h4 {
  font-size: 16px;
  font-weight: 600;
  margin-top: 20px;
  margin-bottom: 6px;
}
p { margin: 0 0 14px; color: var(--ink-dim); }
.lead {
  font-size: 20px;
  line-height: 1.5;
  color: var(--ink-dim);
  margin-bottom: 32px;
  max-width: 640px;
}
ul.plain { list-style: none; padding: 0; margin: 0 0 20px; }
ul.plain li { padding: 8px 0; color: var(--ink-dim); }
ul.plain li strong { color: var(--ink); font-weight: 600; }

/* Buttons */
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 52px;
  padding: 0 22px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform .08s ease, opacity .15s ease;
  border: 0;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--border); }
.btn:active { transform: scale(.98); }
.trust-strip {
  color: var(--ink-faint);
  font-size: 13px;
  margin-top: 4px;
}

/* Cards */
.cards { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: 24px; }
@media (min-width: 720px) { .cards { grid-template-columns: 1fr 1fr 1fr; } }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.card h3 { margin-top: 0; margin-bottom: 6px; font-size: 17px; }
.card p { margin: 0; font-size: 15px; }
.card .emoji { font-size: 28px; margin-bottom: 10px; display: block; }

/* Section with icon + body */
.feature-block { margin-top: 48px; }
.feature-block h2 { margin-top: 0; }
.feature-block > p.lead { margin-bottom: 20px; }
.feature-block .cards { grid-template-columns: 1fr; }
@media (min-width: 720px) { .feature-block .cards { grid-template-columns: 1fr 1fr; } }

/* Pricing */
.plans { display: grid; grid-template-columns: 1fr; gap: 20px; margin-top: 24px; }
@media (min-width: 820px) { .plans { grid-template-columns: 1fr 1fr; } }
.plan {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
}
.plan.featured { border-color: var(--brand); box-shadow: 0 0 0 2px color-mix(in srgb, var(--brand) 25%, transparent); }
.plan .tag {
  display: inline-block;
  background: var(--brand-tint);
  color: var(--brand);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.plan h3 { margin: 0 0 4px; font-size: 22px; }
.plan .price { font-size: 36px; font-weight: 700; letter-spacing: -1px; margin: 10px 0 2px; color: var(--ink); }
.plan .price small { font-size: 15px; font-weight: 500; color: var(--ink-faint); margin-left: 4px; }
.plan .alt-price { font-size: 14px; color: var(--ink-faint); margin-bottom: 20px; }
.plan ul.plain li { font-size: 15px; padding: 6px 0; display: flex; gap: 8px; align-items: flex-start; }
.plan ul.plain li::before { content: '✓'; color: var(--brand); font-weight: 700; }
.plan .btn { margin-top: auto; align-self: stretch; }
.plan .fine { font-size: 12px; color: var(--ink-faint); margin-top: 10px; }

.callout {
  background: var(--warm-tint);
  border: 1px solid var(--warm-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 24px;
}
.callout h3 { color: var(--warm-ink); margin-top: 0; }
.callout p { color: var(--warm-ink); opacity: 0.9; margin: 0; }

/* Steps */
.step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
}
.step-num {
  width: 40px; height: 40px; border-radius: 999px;
  background: var(--brand-tint); color: var(--brand);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px;
}
.step h3 { margin-top: 0; margin-bottom: 10px; }

/* FAQ */
.faq-group { margin-top: 32px; }
.faq-group h2 { margin-bottom: 20px; }
details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 10px;
  transition: border-color .15s ease;
}
details[open] { border-color: var(--brand); }
summary {
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 16px;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: '+';
  font-size: 22px;
  color: var(--ink-faint);
  transition: transform .2s ease;
}
details[open] summary::after { transform: rotate(45deg); }
details > *:not(summary) { margin-top: 10px; }
details p { color: var(--ink-dim); font-size: 15px; margin: 10px 0 0; }

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  color: var(--ink-faint);
  font-size: 13px;
  margin-top: 48px;
}
footer a { color: inherit; text-decoration: underline; }
.footer-row { max-width: 1040px; margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 16px; }

.hero-visual {
  margin: 0 auto 24px;
  width: 100%;
  max-width: 820px;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #E8F0EA, #FFF2E6);
  display: flex; align-items: center; justify-content: center;
  color: var(--warm-ink);
  font-size: 14px;
  border: 1px dashed var(--warm-border);
}