:root {
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'DM Serif Display', 'Times New Roman', serif;
  --bg: #f6f7fb;
  --bg-card: #ffffff;
  --bg-glass: rgba(255,255,255,0.72);
  --text: #1a1a2e;
  --text-secondary: #6b7280;
  --border: rgba(0,0,0,0.08);
  --accent: #6366f1;
  --accent-light: #8b8ff5;
  --accent-glow: rgba(99,102,241,0.25);
  --code-bg: #f1f1f6;
  --max-width: 1100px;
}
.dark {
  --bg: #0a0a0f;
  --bg-card: #141418;
  --bg-glass: rgba(20,20,28,0.78);
  --text: #f1f1f6;
  --text-secondary: #9ca3af;
  --border: rgba(255,255,255,0.08);
  --accent: #818cf8;
  --accent-light: #a5b4fc;
  --accent-glow: rgba(129,140,248,0.2);
  --code-bg: #1c1c24;
}
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  transition: background .3s, color .3s;
  overflow-x: hidden;
}

.glass-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  transition: background .3s, border-color .3s;
}

.blob {
  position: fixed; border-radius: 50%; filter: blur(80px);
  pointer-events: none; z-index: 0; opacity: .45;
}
.blob-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #6366f1 0%, #a855f7 60%, transparent 80%);
  top: -120px; left: -100px;
}
.blob-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #8b5cf6 0%, #6366f1 60%, transparent 80%);
  bottom: -80px; right: -80px;
}
.blob-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #a855f7 0%, #ec4899 60%, transparent 80%);
  top: 40%; right: -60px;
}
.dark .blob-1 { opacity: .25; }
.dark .blob-2 { opacity: .2; }
.dark .blob-3 { opacity: .15; }

.animated-border {
  position: relative; border-radius: 16px; overflow: hidden;
}
.animated-border::before {
  content: ''; position: absolute; inset: 0;
  border-radius: inherit; padding: 1.5px;
  background: conic-gradient(from 0deg at 50% 50%, transparent 0deg, var(--accent) 60deg, transparent 120deg, var(--accent-light) 180deg, transparent 240deg, var(--accent) 300deg, transparent 360deg);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  animation: border-rotate 4s linear infinite;
}
@keyframes border-rotate { to { transform: rotate(360deg); } }
.animated-border .inner {
  position: relative; z-index: 1; border-radius: 14.5px;
  background: var(--bg-card); height: 100%;
}

.feature-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 16px; padding: 1.75rem; transition: all .25s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--accent-glow);
  border-color: var(--accent);
}

.code-block {
  background: var(--code-bg); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.25rem 1.5rem;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: .875rem; line-height: 1.7; overflow-x: auto;
  transition: background .3s, border-color .3s;
}
.code-block .comment { color: #6b7280; font-style: italic; }
.code-block .keyword { color: var(--accent); }
.code-block .string { color: #10b981; }

.section {
  max-width: var(--max-width); margin: 0 auto;
  padding: 5rem 1.5rem; position: relative; z-index: 1;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  line-height: 1.15; letter-spacing: -.02em;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary); max-width: 800px;
}

.console-screenshot {
  animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.dashboard-mockup {
  border-radius: 16px; overflow: hidden;
  box-shadow: 0 20px 60px rgba(99,102,241,0.15), 0 4px 16px rgba(0,0,0,0.06);
  border: 1px solid var(--border);
}

.faq-item { border-bottom: 1px solid var(--border); padding: 1rem 0; }
.faq-question {
  width: 100%; text-align: left; background: none; border: none;
  padding: .75rem 0; font-size: 1.05rem; font-weight: 500;
  color: var(--text); cursor: pointer; display: flex;
  justify-content: space-between; align-items: center; gap: 1rem;
  transition: color .2s;
}
.faq-question:hover { color: var(--accent); }
.faq-question .icon { transition: transform .3s; display: inline-flex; }
.faq-question.open .icon { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  color: var(--text-secondary); font-size: .95rem; line-height: 1.7;
}
.faq-answer.open { max-height: 300px; padding-bottom: 1rem; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem; text-align: center;
  color: var(--text-secondary); font-size: .85rem;
}

.btn-primary {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--accent); color: #fff; border: none;
  padding: .8rem 2rem; border-radius: 999px; font-weight: 500;
  font-size: 1rem; cursor: pointer; transition: all .2s;
  text-decoration: none;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}
.btn-outline {
  background: var(--bg-card); color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent); color: var(--accent);
  transform: translateY(-2px);
}

#mobileNav.open { transform: translateX(0); }

.nav-mobile-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.3);
  z-index: 98; opacity: 0; pointer-events: none; transition: opacity .3s;
}
.nav-mobile-overlay.open { opacity: 1; pointer-events: auto; }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

#gotop {
  position: fixed; bottom: 24px; right: 24px;
  width: 44px; height: 44px; border-radius: 50%;
  display: none; z-index: 1060;
  background: rgba(128,128,128,0.5);
  border: none; color: #fff;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  cursor: pointer; align-items: center; justify-content: center;
  padding: 0;
}
#gotop:hover { background: rgba(128,128,128,0.7); }
#gotop.show { display: flex; }

@media (max-width: 768px) {
  .section { padding: 3rem 1rem; }
  .blob-1 { width: 300px; height: 300px; top: -60px; left: -60px; }
  .blob-2 { width: 200px; height: 200px; bottom: -40px; right: -40px; }
  .blob-3 { display: none; }
}