:root {
  --background: #ffffff;
  --surface: #eef4f8;
  --text: #1e2a36;
  --muted: #5d6b78;
  --border: #c7d3dc;
  --accent: #1f4f7a;
  --accent-dark: #173a5b;
  --max-width: 1100px;
  --radius: 14px;
  --shadow: 0 10px 24px rgba(19, 38, 56, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--background);
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }

.container {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
}

.section { padding: 3rem 0; }
.section-alt { background: var(--surface); }

.site-header {
  border-bottom: 2px solid var(--border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 20;
}

.demo-notice {
  background: #1f4f7a;
  color: #fff;
  text-align: center;
  padding: 0.75rem;
  font-weight: 700;
}

.demo-notice a {
  color: #fff;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.site-name { margin: 0; font-size: 1.15rem; }
.site-tagline { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.95rem; }

.nav-toggle {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 10px;
  padding: 0.65rem 0.85rem;
  font: inherit;
}

.site-nav { display: none; border-top: 1px solid var(--border); }
.site-nav.open { display: block; }

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0.75rem 0 1rem;
}

.site-nav li + li { margin-top: 0.5rem; }

.site-nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
}

.site-nav a.active { color: var(--accent); }

.announcement-bar {
  background: var(--accent);
  color: #fff;
  text-align: center;
  padding: .55rem;
  font-weight: 700;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.hero-text { max-width: 540px; }

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

h1, h2, h3 { margin-top: 0; line-height: 1.2; }
h1 { font-size: 2.1rem; margin-bottom: 1rem; }
h2 { font-size: 1.5rem; margin-bottom: .75rem; }
h3 { font-size: 1.15rem; margin-bottom: .5rem; }

p, ul { margin-top: 0; }

.lead {
  font-size: 1.1rem;
  color: var(--muted);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 999px;
  padding: .85rem 1.25rem;
  font-weight: 700;
  border: 0;
  font: inherit;
  cursor: pointer;
}

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

.button-secondary {
  background: #fff;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.grid-2, .grid-3, .gallery-grid, .split {
  display: grid;
  gap: 1.25rem;
}

.card, .cta-box {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.cta-box { text-align: center; }

.hero-image { justify-self: center; text-align: center; }

.hero-image img {
  width: 100%;
  max-width: 360px;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.gallery-grid img {
  width: 100%;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.contact-form {
  display: grid;
  gap: .75rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: .8rem .9rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.footer-inner { padding: 2rem 0; }
.footer-grid { display: grid; gap: 1rem; }

.footer-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-nav li + li { margin-top: .5rem; }

@media (min-width: 700px) {
  h1 { font-size: 2.8rem; }

  .hero-grid {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }

  .hero-image {
    justify-self: end;
    text-align: center;
  }

  .hero-image img { max-width: 420px; }

  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .split { grid-template-columns: 1.2fr 1fr; align-items: start; }

  .nav-toggle { display: none; }

  .site-nav {
    display: block;
    border-top: 0;
  }

  .site-nav ul {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 0;
  }

  .site-nav li + li { margin-top: 0; }

  .footer-grid { grid-template-columns: 2fr 1fr; }
}