:root {
  --navy: #13294b;
  --navy-soft: #4a5b78;
  --teal: #14a3a0;
  --teal-dark: #0e7f7d;
  --teal-tint: #e8f6f6;
  --border: #e3e8ef;
  --bg-alt: #f7f9fb;
  --white: #ffffff;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--navy);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  line-height: 1.2;
  margin: 0 0 0.75rem;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--teal-dark);
}

a:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.narrow {
  max-width: 720px;
}

.center {
  text-align: center;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--white);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--navy);
  text-decoration: none;
}

.logo::after {
  content: ".";
  color: var(--teal);
}

.header-link {
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
}

.header-link:hover {
  text-decoration: underline;
}

/* Hero */
.hero {
  padding: 5rem 0 4.5rem;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-dark);
  background: var(--teal-tint);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 6vw, 3.5rem);
  max-width: 16ch;
  margin-bottom: 1.25rem;
}

.lead {
  font-size: 1.2rem;
  color: var(--navy-soft);
  max-width: 38rem;
  margin-bottom: 2rem;
}

.button {
  display: inline-block;
  background: var(--teal-dark);
  color: var(--white);
  font-weight: 600;
  text-decoration: none;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  transition: background-color 0.15s ease;
}

.button:hover {
  background: var(--navy);
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section.alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section h2 {
  font-size: clamp(1.6rem, 3.5vw, 2rem);
}

.section h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background: var(--teal);
  border-radius: 2px;
  margin-top: 0.75rem;
}

.center h2::after {
  margin-left: auto;
  margin-right: auto;
}

.section p {
  color: var(--navy-soft);
}

.section-intro {
  margin-bottom: 2rem;
}

/* Features */
.features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 3px solid var(--teal);
  border-radius: 10px;
  padding: 1.5rem;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.card p {
  margin: 0;
  font-size: 0.98rem;
}

/* AI checklist */
.checklist {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.checklist li {
  position: relative;
  padding: 0.85rem 0 0.85rem 2rem;
  border-bottom: 1px solid var(--border);
}

.checklist li:last-child {
  border-bottom: 0;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0.2rem;
  top: 1.35rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--teal);
}

/* Status */
.status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  color: var(--navy) !important;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  margin: 0.5rem 0 0;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--teal);
}

/* Contact */
.email {
  display: inline-block;
  font-size: clamp(1.1rem, 4vw, 1.4rem);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--teal);
  padding-bottom: 2px;
  word-break: break-all;
}

.email:hover {
  color: var(--navy);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  font-size: 0.9rem;
  color: var(--navy-soft);
}

.site-footer p {
  margin: 0;
}

/* Responsive */
@media (max-width: 900px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  body {
    font-size: 1rem;
  }

  .hero {
    padding: 3.5rem 0 3rem;
  }

  .lead {
    font-size: 1.075rem;
  }

  .section {
    padding: 3.25rem 0;
  }

  .features {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }
}