:root {
  --background: #07110d;
  --surface: #0d1b15;
  --surface-light: #13251d;
  --border: #274538;
  --text-primary: #f4f8f5;
  --text-secondary: #a8bbb0;
  --accent: #36d782;
  --accent-dark: #123c28;
  --warning: #f6c760;
  --container-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(54, 215, 130, 0.12), transparent 35%),
    var(--background);
  color: var(--text-primary);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

.container {
  width: min(calc(100% - 40px), var(--container-width));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid rgba(39, 69, 56, 0.7);
  background: rgba(7, 17, 13, 0.85);
}

.header-content {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
}

.brand-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 12px;
  background: var(--accent-dark);
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.environment-badge {
  padding: 6px 12px;
  border: 1px solid rgba(246, 199, 96, 0.35);
  border-radius: 999px;
  background: rgba(246, 199, 96, 0.08);
  color: var(--warning);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.login-link {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 0 15px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 0.82rem;
  font-weight: 750;
  text-decoration: none;
  transition:
    border-color 150ms ease,
    color 150ms ease,
    background 150ms ease;
}

.login-link:hover {
  border-color: var(--accent);
  background: rgba(54, 215, 130, 0.08);
  color: var(--accent);
}

.hero {
  padding: 110px 0 80px;
}

.hero-content {
  max-width: 860px;
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 850px;
  margin: 20px auto 24px;
  font-size: clamp(2.5rem, 6vw, 4.7rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.hero-description {
  max-width: 690px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.status-card {
  max-width: 610px;
  margin: 44px auto 0;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(13, 27, 21, 0.78);
  text-align: left;
}

.status-indicator {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 7px rgba(54, 215, 130, 0.12);
}

.status-label {
  display: block;
  margin-bottom: 2px;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status-card strong {
  font-size: 0.95rem;
}

.architecture-section {
  padding: 80px 0 110px;
}

.section-heading {
  max-width: 700px;
  margin-bottom: 38px;
}

.section-heading h2 {
  margin: 12px 0 16px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.section-heading p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.architecture-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.architecture-card {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background:
    linear-gradient(145deg, rgba(19, 37, 29, 0.92), rgba(13, 27, 21, 0.92));
}

.card-number {
  display: inline-block;
  margin-bottom: 52px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.architecture-card h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.architecture-card p {
  margin-bottom: 0;
  color: var(--text-secondary);
}

.site-footer {
  border-top: 1px solid rgba(39, 69, 56, 0.7);
}

.footer-content {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer-content p {
  margin: 0;
}

.footer-credit {
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.015em;
}

@media (max-width: 800px) {
  .hero {
    padding: 80px 0 60px;
  }

  .architecture-grid {
    grid-template-columns: 1fr;
  }

  .architecture-card {
    min-height: auto;
  }

  .card-number {
    margin-bottom: 30px;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(calc(100% - 28px), var(--container-width));
  }

  .header-content,
  .footer-content {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }

  .header-content {
    padding: 16px 0;
  }

  .hero {
    padding-top: 64px;
  }

  .status-card {
    align-items: flex-start;
  }

  .footer-content {
    padding: 24px 0;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }
}