:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --card: #ffffff;
  --text: #121826;
  --muted: #5f6c85;
  --primary: #1a55ff;
  --primary-dark: #123fcc;
  --border: #e3e8f0;
}

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

body {
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

.site-header {
  background: radial-gradient(circle at top, #e8edff, #f7f8fb 55%);
  padding: 2.5rem 6vw 4rem;
}

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

.logo {
  font-weight: 700;
  font-size: 1.1rem;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-weight: 500;
  color: var(--muted);
}

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

.hero {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.5rem;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  margin: 0.5rem 0 1rem;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.subtitle {
  color: var(--muted);
  max-width: 32rem;
}

.hero-actions {
  margin-top: 1.6rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(18, 63, 204, 0.2);
}

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

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

.btn.ghost {
  border-color: var(--border);
  color: var(--text);
  background: var(--card);
}

.hero-card {
  background: var(--card);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
  border: 1px solid var(--border);
}

.hero-card ul {
  margin-top: 1rem;
  list-style: none;
  display: grid;
  gap: 0.6rem;
  color: var(--muted);
}

.hero-card li::before {
  content: "●";
  color: var(--primary);
  margin-right: 0.6rem;
}

.section {
  padding: 4rem 6vw;
}

.section.alt {
  background: #ffffff;
}

.section-header {
  max-width: 48rem;
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  margin-bottom: 0.6rem;
}

.section-header p {
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--card);
  border-radius: 16px;
  padding: 1.6rem;
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
}

.card h3 {
  margin-bottom: 0.6rem;
}

.card p {
  color: var(--muted);
}

.split {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  color: var(--muted);
}

.split h3 {
  color: var(--text);
  margin-bottom: 0.5rem;
}

.contact-form {
  display: grid;
  gap: 1.2rem;
  max-width: 520px;
}

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

input,
textarea {
  padding: 0.7rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-family: inherit;
  resize: vertical;
}

.form-note {
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer {
  padding: 2rem 6vw;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
  border-top: 1px solid var(--border);
  background: #ffffff;
}

.footer-links {
  display: flex;
  gap: 1.4rem;
  color: var(--muted);
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--text);
}

@media (max-width: 860px) {
  .nav-links {
    position: absolute;
    top: 72px;
    right: 6vw;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1rem;
    flex-direction: column;
    gap: 0.8rem;
    display: none;
  }

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

  .menu-toggle {
    display: inline-flex;
  }
}