/* style.css - Minimalist, Premium Dark Aesthetic */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #0f1014;
  --bg-tertiary: #18191e;
  
  --text-primary: #f5f5f7;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  
  --border-color: #27272a;
  --border-hover: #3f3f46;
  
  --accent-color: #ededed;
  --accent-blue: #3b82f6;
  --accent-blue-dim: #1e3a8a;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 0%, #a1a1aa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.tag.live { background: rgba(59, 130, 246, 0.1); color: var(--accent-blue); border: 1px solid rgba(59, 130, 246, 0.2); }
.tag.version { background: var(--bg-tertiary); color: var(--text-secondary); border: 1px solid var(--border-color); }

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  display: flex;
  align-items: center;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav-brand img { width: 28px; height: 28px; border-radius: 6px; }

.nav-links {
  display: flex;
  gap: 2rem;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.nav-links a:hover {
  color: var(--text-primary);
}

.nav-cta {
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease;
}
.nav-cta:hover { background: #d4d4d8; transform: translateY(-1px); }
.nav-cta:active { transform: translateY(0); }

@media (max-width: 768px) {
  .nav-links { display: none; }
}

/* Sections */
section {
  padding: 8rem 0;
}

.section-header {
  margin-bottom: 4rem;
}
.section-subtitle {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  display: block;
}
.section-title {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text-primary);
}
.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-top: 1rem;
}

/* Hero */
.hero {
  padding: 12rem 0 8rem;
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}
.hero h1 {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 1.5rem;
  max-width: 800px;
}
.hero p {
  font-size: clamp(1.125rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 3rem;
}
.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: 0.875rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  transition: transform 0.2s, background 0.2s;
}
.btn-primary:hover { background: #d4d4d8; transform: translateY(-1px); }
.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 0.875rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  transition: border-color 0.2s, background 0.2s;
}
.btn-secondary:hover { border-color: var(--border-hover); background: var(--border-color); }

/* Flagship / Products Grid */
.flagship-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 3rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  transition: border-color 0.3s ease;
}
.flagship-card:hover {
  border-color: var(--border-hover);
}
@media (min-width: 900px) {
  .flagship-card { flex-direction: row; align-items: center; }
  .flagship-content { flex: 1; padding-right: 2rem; }
  .flagship-visual { flex: 1; }
}

.flagship-visual {
  background: var(--bg-tertiary);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
  aspect-ratio: 16/9;
}
.flagship-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
  transition: opacity 0.3s;
}
.flagship-card:hover .flagship-visual img { opacity: 1; }

.features-list {
  list-style: none;
  margin: 2rem 0;
}
.features-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}
.features-list .material-symbols-outlined {
  color: var(--text-primary);
  font-size: 1.25rem;
}

/* Open Source Grid */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-icon .material-symbols-outlined { font-size: 1.5rem; color: var(--text-primary); }
.card h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.75rem; }
.card p { color: var(--text-secondary); margin-bottom: 2rem; flex: 1; }
.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}
.card-link {
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}
.card-link .material-symbols-outlined { font-size: 1rem; transition: transform 0.2s; }
.card:hover .card-link .material-symbols-outlined { transform: translateX(2px) translateY(-2px); }

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 4rem;
}
.footer-brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 400;
  margin-top: 0.5rem;
}
.footer-links {
  display: flex;
  gap: 2rem;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}