* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #111111;
  background: #ffffff;
}

a {
  color: inherit;
}

.gd-page {
  scroll-behavior: smooth;
}

.gd-container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

.gd-section {
  padding: 80px 0;
  background: #ffffff;
}

.gd-section-alt {
  background: #f5f6f8;
}

.gd-section h2 {
  font-size: 32px;
  margin-bottom: 20px;
}

.gd-section h3 {
  margin-top: 32px;
  margin-bottom: 10px;
}

.gd-h3-top {
  margin-top: 26px;
}

.gd-section p {
  line-height: 1.6;
  margin-top: 0;
  margin-bottom: 12px;
}

.gd-list {
  padding-left: 20px;
  margin-top: 0;
  margin-bottom: 12px;
}

.gd-list li {
  margin-bottom: 4px;
}

/* HEADER */

.gd-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #0a1a30;
  color: #ffffff;
}

.gd-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
}

.gd-logo-block {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.gd-logo-main {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 2px;
}

.gd-logo-sub {
  font-size: 11px;
  letter-spacing: 4px;
}

.gd-nav a {
  color: #ffffff;
  text-decoration: none;
  margin-left: 18px;
  font-size: 14px;
}

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

/* HERO */

.gd-hero {
  background: radial-gradient(circle at top left, #1b3b70, #0a1a30 50%, #000000);
  color: #ffffff;
  padding: 100px 0 90px;
}

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

.gd-hero-text {
  max-width: 720px;
  text-align: center;
}

.gd-hero-text h1 {
  font-size: 34px;
  margin-bottom: 18px;
}

.gd-hero-text p {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.gd-hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* BUTTONS */

.gd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}

.gd-btn-primary {
  background: #006cff;
  color: #ffffff;
  border-color: #006cff;
}

.gd-btn-primary:hover {
  background: #0052c1;
  border-color: #0052c1;
}

.gd-btn-secondary {
  background: transparent;
  color: #ffffff;
  border-color: #ffffff;
}

.gd-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* GRID & CARDS */

.gd-grid {
  display: grid;
  gap: 20px;
  margin-top: 24px;
}

.gd-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gd-grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.gd-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 18px 18px 20px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.04);
  border: 1px solid #e2e4ea;
}

.gd-section-alt .gd-card {
  background: #ffffff;
}

/* CONTACT */

.gd-contact-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 24px;
}

/* FOOTER */

.gd-footer {
  background: #0a1a30;
  color: #ffffff;
  font-size: 13px;
  padding: 16px 0;
  text-align: center;
}

/* RESPONSIVE */

@media (max-width: 900px) {
  .gd-header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .gd-nav a {
    margin-left: 0;
    margin-right: 12px;
  }

  .gd-grid-3,
  .gd-grid-4,
  .gd-contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .gd-hero-text h1 {
    font-size: 26px;
  }

  .gd-section {
    padding: 56px 0;
  }
}