:root {
  --color-background: #061021;
  --color-surface: #0b1f3a;
  --color-surface-alt: #08172d;
  --color-accent: #1d4ed8;
  --color-accent-bright: #38bdf8;
  --color-accent-soft: rgba(56, 189, 248, 0.12);
  --color-text: #e2e8f0;
  --color-text-muted: #9caecb;
  --color-border: rgba(92, 126, 170, 0.22);
  --container-width: 1200px;
  --radius-card: 18px;
  --shadow-soft: 0 24px 48px rgba(6, 16, 33, 0.24);
  --shadow-hover: 0 30px 60px rgba(6, 16, 33, 0.32);
  --transition-base: 160ms ease;
}

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

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--color-text);
  background: var(--color-background);
  line-height: 1.6;
  letter-spacing: 0.01em;
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(100% - 2.5rem, var(--container-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand-logo {
  display: block;
  height: 48px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

.site-nav a:hover {
  color: #f8fafc;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 0.35rem;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 0.8rem;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 1.4rem;
  margin: 0 auto;
  border-radius: 999px;
  background: #f8fafc;
  transition: transform var(--transition-base);
}

.hero {
  padding: 7rem 0 5rem;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), transparent 45%),
    radial-gradient(circle at top right, rgba(29, 78, 216, 0.22), transparent 40%);
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0) 0%, rgba(15, 23, 42, 0.75) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3.5rem;
  align-items: center;
}

.hero-copy h1 {
  margin: 0 0 1.5rem;
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  line-height: 1.1;
  color: #f8fafc;
}

.hero-copy p {
  margin: 0 0 2rem;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.btn.primary {
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  color: #f8fafc;
  box-shadow: 0 15px 30px rgba(37, 99, 235, 0.28);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 35px rgba(37, 99, 235, 0.32);
}

.btn.secondary {
  border: 1px solid rgba(148, 163, 184, 0.4);
  color: #f8fafc;
  background: rgba(11, 31, 58, 0.6);
}

.btn.secondary:hover {
  transform: translateY(-2px);
  border-color: rgba(148, 163, 184, 0.7);
}

.trust-badge {
  display: inline-flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.65);
  font-size: 0.85rem;
}

.badge-title {
  font-weight: 600;
  color: #f8fafc;
}

.badge-copy {
  color: var(--color-text-muted);
}

.hero-card {
  position: relative;
  padding: 2.5rem;
  border-radius: var(--radius-card);
  background: linear-gradient(145deg, rgba(17, 35, 64, 0.85), rgba(8, 23, 45, 0.95));
  border: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: var(--shadow-soft);
}

.hero-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.25), rgba(37, 99, 235, 0.25));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.hero-card:hover::before {
  opacity: 1;
}

.hero-card-header {
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: #f8fafc;
}

.hero-card-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  color: var(--color-text-muted);
}

.section {
  padding: 5.5rem 0;
  background: var(--color-background);
}

.section-alt {
  background: var(--color-surface-alt);
}

.section-header {
  max-width: 640px;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 3vw, 2.5rem);
  color: #f8fafc;
}

.section-header p {
  margin: 0;
  color: var(--color-text-muted);
}

.feature-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 3.5rem;
}

.feature-card {
  padding: 2.25rem;
  border-radius: var(--radius-card);
  background: rgba(11, 31, 58, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.18);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 12px;
  background: var(--color-accent-soft);
  color: var(--color-accent-bright);
  font-weight: 600;
  margin-bottom: 1rem;
}

.feature-card h3 {
  margin: 0 0 0.75rem;
  color: #f8fafc;
}

.feature-card p {
  margin: 0;
  color: var(--color-text-muted);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.pillar {
  padding: 1.8rem;
  border-radius: var(--radius-card);
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(11, 31, 58, 0.7);
}

.pillar h4 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  color: #f8fafc;
}

.pillar p {
  margin: 0;
  color: var(--color-text-muted);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 3rem;
}

.about-copy p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.about-highlight {
  color: #f1f5f9;
  font-weight: 500;
}

.about-facts {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.fact-card {
  padding: 1.5rem;
  border-radius: var(--radius-card);
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(11, 31, 58, 0.85);
}

.fact-title {
  display: block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.fact-value {
  color: #f8fafc;
  font-weight: 500;
  line-height: 1.4;
}

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

.contact-content {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 2.5rem;
}

.contact-card,
.contact-form {
  border-radius: var(--radius-card);
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(11, 31, 58, 0.85);
  padding: 2.25rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.2);
}

.contact-card h3,
.contact-form h3 {
  margin: 0 0 1.5rem;
  color: #f8fafc;
  font-size: 1.35rem;
}

.contact-intro {
  margin: 0 0 1.75rem;
  color: var(--color-text-muted);
}

.contact-actions {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-link {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  border-radius: 1rem;
  padding: 1rem 1.1rem;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid transparent;
  transition: border var(--transition-base), transform var(--transition-base);
}

.contact-link:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 99, 235, 0.4);
}

.contact-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.contact-value {
  font-weight: 600;
  color: #f8fafc;
}

.contact-note {
  margin-top: 2rem;
  padding: 0.9rem 1.1rem;
  border-radius: 0.9rem;
  background: rgba(148, 163, 184, 0.1);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.form-field label {
  font-weight: 500;
  color: #f8fafc;
}

.form-field input,
.form-field textarea {
  border-radius: 0.75rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
  background: rgba(15, 23, 42, 0.6);
  padding: 0.85rem 1rem;
  color: #f8fafc;
  font-size: 1rem;
  transition: border var(--transition-base), box-shadow var(--transition-base);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: rgba(56, 189, 248, 0.7);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.form-field textarea {
  resize: vertical;
  min-height: 140px;
}

.form-disclaimer {
  margin-top: 1.2rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid rgba(92, 126, 170, 0.18);
  background: var(--color-surface);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.footer-brand .brand-logo {
  height: 44px;
}

@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: minmax(0, 1fr);
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pillars-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .contact-content {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 1rem 0;
  }

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

  .site-nav {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 1.25rem;
    flex-direction: column;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 1rem;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.3);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity var(--transition-base), transform var(--transition-base);
  }

  .site-nav.nav-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

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

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

  .hero {
    padding-top: 6rem;
  }

  .hero-card {
    order: -1;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .brand-logo {
    height: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}