:root {
  color-scheme: light;
  --ink: #182329;
  --muted: #5c6970;
  --line: #dce5e5;
  --surface: #ffffff;
  --mist: #f4f8f7;
  --ocean: #126f7a;
  --ocean-deep: #0b5059;
  --mint: #d8efea;
  --shadow: 0 20px 50px rgb(24 35 41 / 0.1);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; }

a:focus-visible,
button:focus-visible {
  outline: 3px solid #75bab9;
  outline-offset: 3px;
}

.skip-link {
  left: 1rem;
  position: fixed;
  top: -5rem;
  z-index: 10;
}

.skip-link:focus { top: 1rem; }

.wrap { margin: 0 auto; max-width: 1120px; padding: 0 1.5rem; }

.site-header {
  background: rgb(255 255 255 / 0.86);
  border-bottom: 1px solid rgb(220 229 229 / 0.8);
  position: sticky;
  top: 0;
  z-index: 5;
}

.nav {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  min-height: 4.5rem;
}

.brand {
  align-items: center;
  display: inline-flex;
  font-size: 1.15rem;
  font-weight: 760;
  gap: 0.65rem;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--ocean);
  border-radius: 0.6rem;
  color: white;
  display: inline-flex;
  font-size: 0.84rem;
  font-weight: 800;
  height: 2rem;
  justify-content: center;
  letter-spacing: -0.04em;
  width: 2rem;
}

.nav-links { align-items: center; display: flex; gap: 1.15rem; }

.nav-links a {
  color: var(--muted);
  font-size: 0.93rem;
  font-weight: 650;
  text-decoration: none;
}

.nav-links a:hover { color: var(--ocean-deep); }

.button {
  background: var(--ocean);
  border: 1px solid var(--ocean);
  border-radius: 999px;
  color: #fff;
  display: inline-flex;
  font-size: 0.94rem;
  font-weight: 720;
  justify-content: center;
  padding: 0.7rem 1.1rem;
  text-decoration: none;
}

.button:hover { background: var(--ocean-deep); border-color: var(--ocean-deep); }

.button.quiet { background: transparent; color: var(--ocean-deep); }

.hero {
  background:
    radial-gradient(circle at 80% 12%, rgb(216 239 234 / 0.9), transparent 29rem),
    linear-gradient(160deg, #fbfdfd 0%, #edf6f4 100%);
  overflow: hidden;
  padding: 7rem 0 5.5rem;
}

.hero-grid { align-items: center; display: grid; gap: 3.5rem; grid-template-columns: 1.15fr 0.85fr; }

.eyebrow {
  color: var(--ocean-deep);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  margin: 0 0 1rem;
  text-transform: uppercase;
}

h1, h2, h3 { letter-spacing: -0.045em; line-height: 1.12; }

h1 { font-size: clamp(2.7rem, 6vw, 5.2rem); margin: 0; max-width: 11ch; }

h2 { font-size: clamp(2rem, 4vw, 3rem); margin: 0 0 1rem; }

h3 { font-size: 1.2rem; margin: 0.1rem 0 0.45rem; }

.lede { color: var(--muted); font-size: 1.16rem; margin: 1.45rem 0 2rem; max-width: 36rem; }

.hero-actions { align-items: center; display: flex; flex-wrap: wrap; gap: 1rem; }

.quiet-copy { color: var(--muted); font-size: 0.9rem; margin: 0; }

.focus-card {
  background: rgb(255 255 255 / 0.78);
  border: 1px solid rgb(255 255 255 / 0.95);
  border-radius: 1.5rem;
  box-shadow: var(--shadow);
  padding: 1.45rem;
}

.card-top { align-items: center; display: flex; justify-content: space-between; }

.status { background: #e1f2ee; border-radius: 999px; color: var(--ocean-deep); font-size: 0.78rem; font-weight: 750; padding: 0.3rem 0.6rem; }

.focus-card h2 { font-size: 1.45rem; margin: 1.9rem 0 0.35rem; }

.timer { color: var(--ocean-deep); font-size: clamp(3.5rem, 7vw, 5.2rem); font-variant-numeric: tabular-nums; font-weight: 760; letter-spacing: -0.08em; line-height: 1; margin: 1.1rem 0; }

.progress { background: #e5eceb; border-radius: 999px; height: 0.5rem; overflow: hidden; }
.progress > span { background: var(--ocean); border-radius: inherit; display: block; height: 100%; width: 68%; }

.mini-list { border-top: 1px solid var(--line); list-style: none; margin: 1.5rem 0 0; padding: 1rem 0 0; }
.mini-list li { color: var(--muted); display: flex; font-size: 0.9rem; justify-content: space-between; padding: 0.25rem 0; }

.section { padding: 5.75rem 0; }
.section.tint { background: var(--mist); }
.section-intro { max-width: 43rem; }
.section-intro p { color: var(--muted); margin: 0; }

.principle { color: var(--ocean-deep); font-size: clamp(1.5rem, 3.4vw, 2.5rem); font-weight: 730; letter-spacing: -0.04em; margin: 2.5rem 0 0; }
.principle span { color: #8ba3a0; padding: 0 0.35rem; }

.grid { display: grid; gap: 1rem; grid-template-columns: repeat(3, 1fr); margin-top: 2.4rem; }
.feature { background: #fff; border: 1px solid var(--line); border-radius: 1rem; min-height: 12rem; padding: 1.35rem; }
.feature p, .trust p { color: var(--muted); font-size: 0.96rem; margin: 0; }
.feature-number { color: var(--ocean); font-size: 0.83rem; font-weight: 800; letter-spacing: 0.08em; }

.trust { align-items: start; border-top: 1px solid var(--line); display: grid; gap: 2rem; grid-template-columns: 1fr 1fr; padding-top: 2.5rem; }
.trust a { color: var(--ocean-deep); font-weight: 700; }

.page-hero { background: var(--mist); padding: 4rem 0 3.2rem; }
.page-hero h1 { font-size: clamp(2.5rem, 5vw, 4rem); max-width: 15ch; }
.page-hero p { color: var(--muted); font-size: 1.08rem; margin: 1rem 0 0; max-width: 45rem; }

.article { max-width: 760px; padding-bottom: 5rem; padding-top: 3.5rem; }
.article h2 { font-size: 1.5rem; margin: 2.6rem 0 0.7rem; }
.article h3 { font-size: 1.1rem; letter-spacing: -0.02em; margin: 1.5rem 0 0.4rem; }
.article p, .article li { color: #344249; }
.article ul { padding-left: 1.2rem; }
.article li + li { margin-top: 0.5rem; }
.notice { background: #edf6f4; border-left: 4px solid var(--ocean); border-radius: 0 0.65rem 0.65rem 0; color: #274549; margin: 1.5rem 0; padding: 1rem 1.1rem; }

.faq { border-top: 1px solid var(--line); margin-top: 2rem; }
.faq details { border-bottom: 1px solid var(--line); padding: 1.1rem 0; }
.faq summary { cursor: pointer; font-weight: 720; }
.faq p { color: var(--muted); margin: 0.7rem 0 0; }

.site-footer { background: #142328; color: #dbe7e5; padding: 2.4rem 0; }
.footer-grid { align-items: center; display: flex; gap: 1rem; justify-content: space-between; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer-links a { color: #dbe7e5; font-size: 0.9rem; text-decoration: none; }
.footer-links a:hover { color: #fff; }
.copyright { color: #a9bebc; font-size: 0.84rem; margin: 0; }

@media (max-width: 760px) {
  .nav { align-items: flex-start; flex-direction: column; gap: 0.55rem; padding: 0.8rem 0; }
  .nav-links { flex-wrap: wrap; gap: 0.85rem 1rem; }
  .nav-links .button { padding: 0.42rem 0.8rem; }
  .hero { padding: 4.2rem 0 3.6rem; }
  .hero-grid, .trust { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .section { padding: 4rem 0; }
  .footer-grid { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}