:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --brand: #0f766e;
  --brand-dark: #0d9488;
  --brand-ink: #134e4a;
  --accent: #f59e0b;
  --warn-bg: #fff7ed;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --max: 1080px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--brand); text-underline-offset: 2px; }
a:hover { color: var(--brand-ink); }
.container { width: min(100% - 2rem, var(--max)); margin-inline: auto; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--brand);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
}
.logo-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.55rem;
  background: var(--brand);
  color: #fff;
  font-size: 0.95rem;
}
.logo-text { font-size: 0.98rem; }
.nav {
  display: none;
  align-items: center;
  gap: 1rem;
}
.nav a:not(.btn) {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}
.nav a:not(.btn):hover { color: var(--brand-ink); }

.menu-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--border);
  border-radius: 0.65rem;
  background: var(--surface);
  cursor: pointer;
  padding: 0.55rem;
}
.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}
.mobile-nav {
  display: grid;
  gap: 0.75rem;
  padding: 0.75rem 1rem 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.mobile-nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  padding: 0.35rem 0;
}
.mobile-nav[hidden] { display: none !important; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  font-weight: 650;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.35);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--brand);
  color: #fff;
}
.btn-primary:hover { background: var(--brand-dark); color: #fff; }
.btn-secondary {
  background: #fff;
  color: var(--brand-ink);
  border-color: var(--border);
}
.btn-secondary:hover { border-color: var(--brand); color: var(--brand-ink); }
.btn-ghost {
  background: transparent;
  color: var(--muted);
  border-color: transparent;
}
.btn-lg { padding: 0.85rem 1.35rem; font-size: 1.02rem; }

.hero {
  padding: 2.5rem 0 3rem;
  background:
    radial-gradient(circle at top right, rgba(13, 148, 136, 0.12), transparent 40%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
}
.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  margin: 0 0 0.75rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.1);
  color: var(--brand-ink);
  font-size: 0.85rem;
  font-weight: 650;
}
.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.7rem, 4.5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.lead {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 38rem;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}
.hero-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.hero-card {
  display: grid;
  place-items: center;
}
.card-panel {
  width: min(100%, 360px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
  padding: 1rem;
  display: grid;
  gap: 0.65rem;
}
.card-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: #f0fdfa;
  color: var(--brand-ink);
  font-size: 0.95rem;
}
.card-row.warn { background: var(--warn-bg); color: #9a3412; }

.benefits, .pricing { padding: 3rem 0; }
.benefits h2, .pricing h2, .cta-band h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}
.section-lead {
  margin: 0 0 1.75rem;
  color: var(--muted);
  max-width: 40rem;
}
.benefit-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.benefit-grid li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02);
}
.benefit-grid h3 {
  margin: 0 0 0.45rem;
  font-size: 1.08rem;
}
.benefit-grid p {
  margin: 0;
  color: var(--muted);
}

.pricing { background: #ffffff; border-block: 1px solid var(--border); }
.price-card {
  max-width: 420px;
  background: linear-gradient(180deg, #ffffff, #f0fdfa);
  border: 1px solid #99f6e4;
  border-radius: calc(var(--radius) + 4px);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.plan-name {
  margin: 0 0 0.35rem;
  font-weight: 700;
  color: var(--brand-ink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.85rem;
}
.plan-price { margin: 0 0 1rem; }
.plan-price .amount {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.plan-price .period { color: var(--muted); font-weight: 600; }
.price-card ul {
  margin: 0 0 1.25rem;
  padding-left: 1.1rem;
  color: var(--muted);
}
.price-card li { margin-bottom: 0.4rem; }
.pricing-note {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.cta-band {
  padding: 3rem 0;
  background:
    linear-gradient(135deg, #0f766e, #115e59 55%, #134e4a);
  color: #fff;
  text-align: center;
}
.cta-band p {
  margin: 0 auto 1.25rem;
  max-width: 34rem;
  color: rgba(255, 255, 255, 0.9);
}
.cta-band .btn-primary {
  background: #fff;
  color: var(--brand-ink);
}
.cta-band .btn-primary:hover {
  background: #ecfeff;
  color: var(--brand-ink);
}

.site-footer {
  background: #0b1220;
  color: #cbd5e1;
  padding: 2rem 0;
}
.footer-inner {
  display: grid;
  gap: 1rem;
}
.footer-brand {
  margin: 0 0 0.25rem;
  color: #fff;
  font-weight: 700;
}
.footer-muted { margin: 0; font-size: 0.92rem; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
}
.footer-links a {
  color: #e2e8f0;
  text-decoration: none;
  font-weight: 500;
}
.footer-links a:hover { color: #99f6e4; }
.footer-copy {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  color: #94a3b8;
}

@media (min-width: 760px) {
  .menu-toggle { display: none; }
  .nav { display: flex; }
  .mobile-nav { display: none !important; }
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; gap: 2.5rem; }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }
  .footer-copy { grid-column: 1 / -1; }
}

@media (min-width: 980px) {
  .benefit-grid { grid-template-columns: repeat(3, 1fr); }
  .benefit-grid li:nth-child(4),
  .benefit-grid li:nth-child(5) { grid-column: span 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}