/* Sentlume website – light, compact, hairline borders (matches the extension's UI). */
:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --elevated: #f1f2f4;
  --hairline: #e3e5e9;
  --strong: #cfd3d9;
  --text: #0f1011;
  --body: #2e3238;
  --muted: #6b7079;
  --faint: #8f949c;
  --lime: #e4f222;
  --lime-dark: #5c6400;
  --green: #1b7f36;
  --radius: 12px;
  --font: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--text); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #000; }
h1, h2, h3 { color: var(--text); letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 12px; font-weight: 600; }
h1 { font-size: clamp(32px, 5vw, 52px); }
h2 { font-size: clamp(24px, 3vw, 32px); }
h3 { font-size: 18px; }
p { margin: 0 0 12px; }
.container { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }

.nav { position: sticky; top: 0; z-index: 10; background: rgba(246, 247, 249, 0.9); backdrop-filter: blur(8px); border-bottom: 1px solid var(--hairline); }
.nav .container { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; color: var(--text); text-decoration: none; font-size: 17px; }
.nav-links { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
.nav-links a { text-decoration: none; color: var(--body); padding: 8px 12px; border-radius: 6px; font-size: 14px; }
.nav-links a:hover { background: var(--elevated); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 6px; padding: 12px 18px; font-weight: 510; font-size: 15px; text-decoration: none; border: 1px solid var(--hairline); background: var(--card); color: var(--text); cursor: pointer; }
.btn:hover { background: var(--elevated); }
.btn-primary { background: var(--lime); border-color: var(--lime); color: var(--text); }
.btn-primary:hover { background: #d9e61f; }

.hero { padding: 72px 0 48px; }
.hero .eyebrow { display: inline-block; font-size: 13px; color: var(--lime-dark); background: rgba(228, 242, 34, 0.35); border-radius: 9999px; padding: 4px 12px; margin-bottom: 16px; }
.hero p.lead { font-size: 19px; color: var(--muted); max-width: 640px; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; align-items: center; }

section { padding: 48px 0; }
section.alt { background: var(--card); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--card); border-radius: var(--radius); box-shadow: inset 0 0 0 1px var(--hairline); padding: 20px; }
section.alt .card { background: var(--bg); }
.card h3 { margin-bottom: 6px; }
.steps { counter-reset: step; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.steps .card::before { counter-increment: step; content: counter(step); display: inline-flex; width: 28px; height: 28px; border-radius: 9999px; background: var(--lime); color: var(--text); font-weight: 600; align-items: center; justify-content: center; margin-bottom: 10px; }

.price { display: flex; flex-wrap: wrap; gap: 24px; align-items: stretch; }
.price .card { flex: 1 1 320px; }
.price .amount { font-size: 40px; font-weight: 600; color: var(--text); letter-spacing: -0.03em; }
.price ul { padding-left: 18px; margin: 12px 0 20px; }
.price li { margin: 4px 0; }
.badge { display: inline-block; font-size: 12px; color: var(--muted); background: var(--elevated); border-radius: 4px; padding: 2px 8px; }

.faq details { border-top: 1px solid var(--hairline); padding: 12px 0; }
.faq summary { cursor: pointer; font-weight: 510; color: var(--text); }
.faq p { margin-top: 8px; }

.prose { max-width: 760px; }
.prose h2 { margin-top: 32px; font-size: 22px; }
.prose ul { padding-left: 20px; }
.notice { background: rgba(228, 242, 34, 0.25); border-radius: 8px; padding: 12px 16px; margin: 16px 0; }

footer { border-top: 1px solid var(--hairline); padding: 28px 0 48px; color: var(--muted); font-size: 14px; }
footer .container { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
footer a { color: var(--muted); }

code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 14px; background: var(--elevated); padding: 1px 6px; border-radius: 4px; }