:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --text: #121826;
  --muted: #556077;
  --line: #d8deeb;
  --brand: #13295b;
  --brand-strong: #0f2250;
  --accent: #1d5f8a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 8px;
  top: -40px;
  background: var(--text);
  color: #fff;
  padding: 0.5rem 0.8rem;
  z-index: 1000;
}

.skip-link:focus {
  top: 8px;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

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

.brand {
  margin: 0;
  font-weight: 700;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
}

nav a,
.btn,
.site-footer a,
input,
textarea,
button {
  transition: all 160ms ease;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.hero {
  padding: 5rem 0;
  background:
    linear-gradient(180deg, rgba(19, 41, 91, 0.06), transparent 55%);
}

.hero-content {
  max-width: 720px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: var(--accent);
  margin: 0 0 0.75rem;
  font-weight: 700;
}

h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.15;
  margin: 0 0 1rem;
}

.section {
  padding: 3rem 0;
}

.section-muted {
  background: #f0f4fb;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.grid {
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  padding: 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.card.muted {
  background: #ffffffcc;
}

.card h3 {
  margin-top: 0;
}

.actions {
  margin-top: 1.25rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  border: 1px solid transparent;
  padding: 0.7rem 1rem;
  border-radius: 8px;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background: var(--brand-strong);
}

.btn-secondary {
  background: var(--surface);
  color: var(--brand);
  border-color: var(--line);
}

.btn-secondary:hover,
.btn-secondary:focus {
  border-color: var(--brand);
}

.contact-form {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.contact-form label {
  display: grid;
  gap: 0.4rem;
  font-weight: 600;
}

.contact-form textarea,
.contact-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.65rem;
  font: inherit;
  background: #fff;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form button {
  grid-column: 1 / -1;
  border: 0;
  cursor: pointer;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.25rem 0;
  font-size: 0.95rem;
  color: #3f4a63;
}

@media (max-width: 900px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .contact-form {
    grid-template-columns: 1fr;
  }
}

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

  .hero {
    padding: 3rem 0;
  }
}