/* Design tokens & foundations */
:root {
  /* Palette sampled from reference site — see design/sampled-palette.md */
  --dark: #101b30;
  --text-muted: #445469;
  --bg: #ffffff;
  --bg-alt: #f5faf9;
  --accent: #007f93;
  --accent-dark: #00697a;
  --accent-tint: #e1f5f3;
  --accent-on-dark: #5dd9de;
  --accent-on-dark-hover: #9beaed;
  --text-on-dark: #cedee8;
  --line: #d6e4e8;
  --radius: 12px;
  --font-display: "Space Grotesk", -apple-system, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  font-family: var(--font-body);
  color: var(--dark);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 0.5rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  color: var(--text-muted);
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-sub {
  max-width: 46ch;
  margin: 0 auto 2.5rem;
  text-align: center;
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-ghost {
  border: 1.5px solid var(--dark);
  color: var(--dark);
}

.btn-ghost:hover {
  background: var(--dark);
  color: var(--bg);
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1.05rem;
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 72px;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  font-weight: 500;
  font-size: 0.95rem;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-phone {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--accent);
  white-space: nowrap;
}

.nav .nav-links .nav-menu-cta,
.nav .nav-links .nav-extra {
  display: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--dark);
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .nav-phone,
  .nav-actions .btn {
    display: none;
  }

  .nav .nav-links .nav-menu-cta {
    display: flex;
    justify-content: center;
    margin: 0.75rem 0 0.5rem;
    padding: 0.85rem 1.25rem;
    border-bottom: none;
    text-align: center;
    color: #fff;
  }

  .nav .nav-links .nav-menu-cta:hover {
    color: #fff;
  }

  .btn-lg {
    display: block;
    padding: 0.9rem 1.25rem;
    font-size: 1rem;
    text-align: center;
  }
}

@media (max-width: 1080px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem 4%;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-links a:last-child {
    border-bottom: none;
  }

  .nav .nav-links .nav-extra {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }
}