:root {
  --color-dark-blue: #1B2935;
  --color-light-blue: #BDC1CE;
  --color-white: #ffffff;
  --color-text: #1B2935;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--color-text);
  background-color: var(--color-white);
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

/* Header */

.site-header {
  background-color: var(--color-dark-blue);
  color: var(--color-white);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

.logo-text {
  font-weight: 700;
  letter-spacing: 0.05em;
}

.main-nav a {
  color: var(--color-white);
  text-decoration: none;
  margin-left: 1rem;
  font-size: 0.95rem;
}

.main-nav a:hover {
  text-decoration: underline;
}

.header-phone {
  color: var(--color-light-blue);
  text-decoration: none;
  font-weight: 600;
}

/* Hero */

.hero {
  background: linear-gradient(
    135deg,
    var(--color-dark-blue),
    var(--color-light-blue)
  );
  color: var(--color-white);
  padding: 3rem 0;
}

.hero-inner {
  display: flex;
  align-items: center;
}

.hero-text h1 {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.hero-text p {
  max-width: 480px;
  margin-bottom: 1.5rem;
}

.hero-actions .btn {
  margin-right: 0.75rem;
}

/* Sections */

.section {
  padding: 2.5rem 0;
}

.section-alt {
  background-color: #f5f7fa;
}

.section h2 {
  margin-bottom: 1rem;
}

/* Cards */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.card {
  border: 1px solid #e0e4ea;
  border-radius: 6px;
  padding: 1rem;
  background-color: var(--color-white);
}

/* Buttons */

.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--color-dark-blue);
  color: var(--color-white);
}

.btn-secondary {
  background-color: var(--color-light-blue);
  color: var(--color-dark-blue);
}

/* Contact form */

.contact-form {
  max-width: 500px;
}

.form-row {
  display: flex;
  flex-direction: column;
  margin-bottom: 0.75rem;
}

.form-row label {
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.form-row input,
.form-row textarea {
  padding: 0.5rem;
  border-radius: 4px;
  border: 1px solid #ccd2dd;
  font-size: 0.95rem;
}

/* Footer */

.site-footer {
  background-color: var(--color-dark-blue);
  color: var(--color-white);
  padding: 1rem 0;
  margin-top: 2rem;
}

.footer-inner {
  text-align: center;
  font-size: 0.85rem;
}

/* Mobile tweaks */

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .hero-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}