:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-light: #1f2937;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #38bdf8;
  --border: #334155;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: #7dd3fc;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(15, 23, 42, 0.96);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  color: var(--text);
  font-weight: 700;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  gap: 1.2rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--text);
}

.menu-button {
  display: none;
  background: var(--panel-light);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
}

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 5rem 1rem;
}

.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.hero-content {
  max-width: 780px;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(2.5rem, 8vw, 4.8rem);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.hero-text,
.section-text {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 780px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-block;
  padding: 0.8rem 1.1rem;
  border-radius: 10px;
  font-weight: 700;
}

.button.primary {
  background: var(--accent);
  color: #082f49;
}

.button.primary:hover {
  background: #7dd3fc;
  color: #082f49;
}

.button.secondary {
  border: 1px solid var(--border);
  color: var(--text);
}

.button.secondary:hover {
  background: var(--panel-light);
}

.section-header {
  margin-bottom: 2rem;
}

.grid,
.stack-grid {
  display: grid;
  gap: 1rem;
}

.grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1.4rem;
  border-radius: 16px;
}

.card p {
  color: var(--muted);
}

.status {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
}

.stack-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.stack-grid span {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 12px;
  text-align: center;
  font-weight: 700;
}

.contact-section {
  border-top: 1px solid var(--border);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1rem;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 760px) {
  .menu-button {
    display: inline-block;
  }

  .nav {
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    margin-top: 1rem;
  }

  .nav-links.open {
    display: flex;
  }

  .section {
    padding: 4rem 1rem;
  }
}