:root {
  --navy-900: #061021;
  --navy-800: #0b1c38;
  --navy-700: #122c52;
  --navy-600: #1a3a68;
  --blue-600: #1f6fb0;
  --blue-500: #2f8fd1;
  --cyan-400: #5cc9f0;
  --white: #ffffff;
  --gray-300: #c7d2e0;
  --gray-400: #93a4bd;
  --radius: 12px;
  --max-width: 1100px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--navy-900);
  color: var(--gray-300);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  color: var(--white);
  line-height: 1.25;
  margin-top: 0;
}

a { color: var(--cyan-400); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(6, 16, 33, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--navy-700);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  padding-bottom: 10px;
}

.brand-logo {
  height: 44px;
  display: block;
}

.main-nav {
  display: flex;
  gap: 28px;
}

.main-nav a {
  color: var(--gray-300);
  font-weight: 500;
}

.main-nav a:hover {
  color: var(--cyan-400);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  display: block;
}

/* Hero */
.hero {
  padding: 64px 0;
  min-height: 90vh;
  display: flex;
  align-items: center;
  background:
    radial-gradient(circle at 20% 50%, var(--navy-700) 0%, var(--navy-900) 60%);
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 56px;
}

.hero-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-logo-img {
  height: 50vh;
  width: auto;
  display: block;
}

.hero-content {
  flex: 1;
  min-width: 0;
}

.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  max-width: 620px;
  margin: 0 0 20px;
}

.hero-sub {
  max-width: 560px;
  margin: 0 0 32px;
  font-size: 1.1rem;
  color: var(--gray-300);
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--blue-600);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--blue-500);
  text-decoration: none;
}

.btn-outline {
  border-color: var(--navy-600);
  color: var(--white);
}
.btn-outline:hover {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
  text-decoration: none;
}

/* Sections */
.section {
  padding: 72px 0;
}

.section-alt {
  background: var(--navy-800);
}

.section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  text-align: center;
}

.section-sub {
  text-align: center;
  max-width: 560px;
  margin: 10px auto 40px;
  color: var(--gray-400);
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

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

.card {
  background: var(--navy-700);
  border: 1px solid var(--navy-600);
  border-radius: var(--radius);
  padding: 28px;
}

.card-muted {
  background: transparent;
  border-style: dashed;
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.card p {
  color: var(--gray-400);
  margin-bottom: 0;
}

.badge {
  display: inline-block;
  background: var(--blue-600);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.badge-muted {
  background: var(--navy-600);
  color: var(--gray-300);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--navy-700);
  border: 1px solid var(--navy-600);
  border-radius: var(--radius);
  padding: 28px;
}

.contact-form label {
  font-size: 0.9rem;
  color: var(--gray-300);
  margin-top: 12px;
}

.contact-form input,
.contact-form textarea {
  background: var(--navy-800);
  border: 1px solid var(--navy-600);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--white);
  font-family: inherit;
  font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--cyan-400);
}

.contact-form button {
  margin-top: 20px;
  align-self: flex-start;
  border: none;
}

.contact-info {
  background: var(--navy-800);
  border: 1px solid var(--navy-600);
  border-radius: var(--radius);
  padding: 28px;
}

.contact-info h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--navy-700);
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-logo {
  height: 28px;
}

.footer-inner p {
  margin: 0;
  color: var(--gray-400);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 800px) {
  .cards, .cards-3 {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero-inner {
    flex-direction: column;
    text-align: center;
    gap: 32px;
  }
  .hero-logo-img {
    height: 30vh;
  }
  .hero h1,
  .hero-sub {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy-800);
    flex-direction: column;
    padding: 16px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--navy-700);
    display: none;
  }
  .main-nav.open {
    display: flex;
  }
}