:root {
  --bg: #0c0f14;
  --bg-alt: #121823;
  --card: #151d2a;
  --accent: #ff8a3d;
  --accent-soft: rgba(255, 138, 61, 0.18);
  --text: #eef3fb;
  --muted: #a5b1c2;
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 20px 60px rgba(5, 10, 20, 0.55);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #1b2233 0%, var(--bg) 45%);
  min-height: 100vh;
  overflow-x: hidden;
}

.bg-orbit {
  position: fixed;
  inset: -20% -10% auto auto;
  width: 70vw;
  height: 70vw;
  background: radial-gradient(circle, rgba(255, 138, 61, 0.2), transparent 60%);
  filter: blur(40px);
  z-index: -2;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(12px);
  background: rgba(12, 15, 20, 0.8);
  border-bottom: 1px solid var(--line);
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 8vw;
}

.logo {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: 0.8px;
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  gap: 24px;
  font-size: 0.95rem;
}

.nav-links a,
.footer-links a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

main {
  padding: 0 8vw 96px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  padding: 80px 0 60px;
  align-items: center;
}

.hero-content h1 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2.5rem, 4vw, 3.8rem);
  line-height: 1.1;
  margin-bottom: 18px;
}

.hero-content p {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.cta {
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.btn {
  font-size: 0.95rem;
  padding: 10px 22px;
  border-radius: 999px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #1d120c;
  box-shadow: 0 12px 30px rgba(255, 138, 61, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.btn:hover {
  transform: translateY(-2px);
}

.hero-meta {
  display: grid;
  gap: 12px;
}

.hero-meta strong {
  display: block;
  font-weight: 600;
}

.hero-meta span {
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.app-window {
  background: var(--card);
  border-radius: 18px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 520px;
  overflow: hidden;
  transform: rotate(-1deg);
  animation: float 6s ease-in-out infinite;
}

.app-title {
  padding: 12px 18px;
  background: #111722;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.app-body {
  display: grid;
  grid-template-columns: 1fr 2fr;
  min-height: 280px;
}

.app-sidebar {
  border-right: 1px solid var(--line);
  padding: 14px;
  font-size: 0.85rem;
  color: var(--muted);
}

.app-sidebar ul {
  list-style: none;
  margin-top: 14px;
  display: grid;
  gap: 8px;
}

.app-sidebar li {
  background: rgba(255, 255, 255, 0.04);
  padding: 6px 8px;
  border-radius: 8px;
}

.chip {
  display: inline-block;
  background: rgba(255, 255, 255, 0.06);
  padding: 6px 10px;
  border-radius: 10px;
  color: var(--text);
}

.app-content {
  padding: 18px;
  font-size: 0.85rem;
  color: var(--muted);
}

.app-content pre {
  margin: 12px 0;
  background: #0c111a;
  border-radius: 12px;
  padding: 12px;
  color: #c7d2e8;
  font-family: "Fira Mono", monospace;
  font-size: 0.78rem;
  white-space: pre-wrap;
}

.warning {
  background: rgba(255, 138, 61, 0.15);
  color: var(--accent);
  padding: 8px 12px;
  border-radius: 10px;
}

.highlight {
  display: inline-block;
  background: #ffef7a;
  color: #1a1407;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 6px;
}

.section {
  padding: 60px 0 0;
}

.section-title {
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.section-title h2 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

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

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 18px 40px rgba(8, 12, 20, 0.35);
}

.card h3 {
  font-family: "Space Grotesk", sans-serif;
  margin-bottom: 10px;
}

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

.card pre {
  margin-top: 12px;
  background: #0c111a;
  border-radius: 12px;
  padding: 14px;
  color: #c7d2e8;
  font-family: "Fira Mono", monospace;
  font-size: 0.85rem;
  white-space: pre-wrap;
}

.code {
  font-family: "Fira Mono", monospace;
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 0.9em;
}

.note {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 20px;
  background: var(--card);
  padding: 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
}

.tag {
  align-self: start;
  background: rgba(255, 255, 255, 0.08);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  text-align: center;
}

.timeline-item ul {
  margin-top: 10px;
  padding-left: 16px;
  color: var(--muted);
}

.date {
  display: inline-block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer {
  padding: 40px 8vw 60px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 20px;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(-1deg);
  }
  50% {
    transform: translateY(-10px) rotate(0deg);
  }
}

@media (max-width: 720px) {
  .nav {
    flex-direction: column;
    gap: 16px;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .app-body {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }
}