/* ============ TOKENS ============ */
:root{
  --bg:#0D1117;
  --bg-alt:#10151d;
  --bg-raised:#141a23;
  --amber:#F59E0B;
  --violet:#818CF8;
  --text:#E6E9EF;
  --text-dim:#9AA4B2;
  --text-faint:#6B7482;
  --border:#232b36;
  --font-display:'Space Grotesk',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  --font-body:'Inter',sans-serif;
  --radius:10px;
  --max:1120px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important;}
}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;letter-spacing:-0.01em;margin:0 0 .5em;}
p{margin:0 0 1em;color:var(--text-dim);}

.container{max-width:var(--max);margin:0 auto;padding:0 24px;}

.skip-link{
  position:absolute;left:-999px;top:0;background:var(--amber);color:#0D1117;
  padding:10px 16px;z-index:1000;border-radius:0 0 8px 0;font-weight:600;
}
.skip-link:focus{left:0;}

:focus-visible{outline:2px solid var(--amber);outline-offset:3px;}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(13,17,23,0.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.nav{
  max-width:var(--max);margin:0 auto;padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;
}
.nav-mark{display:flex;align-items:baseline;gap:4px;font-family:var(--font-mono);font-weight:600;}
.mark{color:var(--amber);font-size:1.15rem;letter-spacing:0.02em;}
.mark-sub{color:var(--violet);font-size:1.15rem;}

.nav-links{display:flex;align-items:center;gap:28px;font-size:0.92rem;}
.nav-links a{color:var(--text-dim);transition:color .2s;}
.nav-links a:hover{color:var(--text);}
.nav-cta{
  color:var(--bg) !important;background:var(--amber);
  padding:8px 16px;border-radius:8px;font-weight:600;
  transition:transform .2s, box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(245,158,11,.35);}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:36px;height:36px;background:none;border:1px solid var(--border);
  border-radius:8px;cursor:pointer;
}
.nav-toggle span{width:16px;height:2px;background:var(--text);margin:0 auto;transition:.2s;}

/* ============ HERO ============ */
.hero{
  position:relative;min-height:92vh;display:flex;align-items:center;
  overflow:hidden;padding:120px 24px 80px;
}
#heroCanvas{
  position:absolute;inset:0;width:100%;height:100%;
  opacity:.55;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60% 50% at 50% 30%, rgba(245,158,11,0.10), transparent 70%),
             radial-gradient(40% 40% at 80% 70%, rgba(129,140,248,0.10), transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;max-width:760px;margin:0 auto;text-align:center;}
.eyebrow{
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--amber);margin-bottom:18px;
}
.hero-title{
  font-size:clamp(3.2rem,10vw,6rem);line-height:.95;margin-bottom:14px;
  background:linear-gradient(135deg,#F5F7FA 20%,var(--amber) 60%,var(--violet) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-tagline{
  font-family:var(--font-mono);font-size:clamp(1rem,2.4vw,1.3rem);color:var(--violet);
  margin-bottom:22px;min-height:1.6em;
}
.hero-tagline::after{content:"▍";animation:blink 1s step-end infinite;color:var(--amber);}
@keyframes blink{50%{opacity:0;}}
.hero-sub{font-size:1.05rem;max-width:620px;margin:0 auto 34px;color:var(--text-dim);}
.hero-ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:8px;font-weight:600;font-size:.95rem;
  transition:transform .2s, box-shadow .2s, background .2s, border-color .2s;
  border:1px solid transparent;cursor:pointer;
}
.btn-primary{
  background:var(--amber);color:#0D1117;
  background:linear-gradient(90deg,var(--amber),#fbbf24,var(--amber));
  background-size:200% auto;
  animation:shimmer 3.5s linear infinite;
  box-shadow:0 0 0 1px rgba(245,158,11,.3);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(245,158,11,.35);}
@keyframes shimmer{to{background-position:200% center;}}
.btn-secondary{background:transparent;border-color:var(--border);color:var(--text);}
.btn-secondary:hover{border-color:var(--violet);color:var(--violet);}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--text-dim);}
.btn-ghost:hover{border-color:var(--text-dim);color:var(--text);}

/* ============ SECTIONS ============ */
.section{padding:100px 0;border-bottom:1px solid var(--border);}
.section-eyebrow{
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--violet);margin-bottom:12px;
}
.section h2{font-size:clamp(1.7rem,3.5vw,2.4rem);max-width:720px;}
.section-lead{max-width:680px;font-size:1.05rem;}
.why .section-lead,.community .section-lead{color:var(--text-dim);}

/* ============ FEATURES ============ */
.feature-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--border);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;margin-top:44px;
}
.feature-card{background:var(--bg-alt);padding:28px 24px;}
.feature-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:8px;
  background:rgba(245,158,11,.08);color:var(--amber);
  font-size:1.1rem;margin-bottom:14px;
}
.feature-card h3{font-size:1.02rem;margin-bottom:6px;}
.feature-card p{font-size:.9rem;margin:0;}

/* ============ WORKFLOW ============ */
.workflow-steps{
  list-style:none;margin:48px 0 0;padding:0;
  display:grid;grid-template-columns:repeat(8,1fr);gap:0;
  position:relative;
}
.workflow-steps::before{
  content:"";position:absolute;top:20px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--amber),var(--violet));
  opacity:.35;
}
.workflow-step{position:relative;padding:0 14px 0 0;}
.step-index{
  display:block;font-family:var(--font-mono);color:var(--amber);
  font-size:.85rem;margin-bottom:14px;
}
.workflow-step h3{font-size:.98rem;margin-bottom:6px;}
.workflow-step p{font-size:.83rem;margin:0;}

/* ============ MODELS ============ */
.model-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:44px;}
.model-card{
  background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius);
  padding:32px;
}
.model-card h3{display:flex;align-items:center;gap:10px;font-size:1.2rem;}
.model-tag{
  font-family:var(--font-mono);font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;
  padding:4px 10px;border-radius:999px;border:1px solid var(--border);color:var(--text-faint);
}
.model-note{margin-top:24px;font-size:.92rem;}

/* ============ INSTALL ============ */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:44px 0 20px;}
.tab-btn{
  background:transparent;border:1px solid var(--border);color:var(--text-dim);
  padding:9px 16px;border-radius:8px;font-size:.85rem;font-family:var(--font-mono);
  cursor:pointer;transition:.2s;
}
.tab-btn.active,.tab-btn:hover{border-color:var(--amber);color:var(--amber);}
.tab-panel[hidden]{display:none;}
.code-block{
  position:relative;background:#080b0f;border:1px solid var(--border);border-radius:var(--radius);
  padding:24px;overflow-x:auto;font-family:var(--font-mono);font-size:.86rem;line-height:1.7;
  color:#c8e6c9;margin:0;
}
.copy-btn{
  position:absolute;top:12px;right:12px;background:var(--bg-raised);color:var(--text-dim);
  border:1px solid var(--border);border-radius:6px;padding:6px 12px;font-size:.72rem;
  font-family:var(--font-body);cursor:pointer;transition:.2s;
}
.copy-btn:hover{border-color:var(--amber);color:var(--amber);}
.install-note{margin-top:18px;font-size:.88rem;color:var(--text-faint);}
.install-note a{color:var(--violet);}

/* ============ ECOSYSTEM ============ */
.ecosystem{background:var(--bg-alt);}
.ecosystem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px;}
.ecosystem-card{
  display:block;background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;transition:border-color .2s, transform .2s;
}
.ecosystem-card:hover{border-color:var(--violet);transform:translateY(-3px);}
.ecosystem-card h3{font-size:1.02rem;color:var(--text);}
.ecosystem-card p{font-size:.86rem;}
.explore{font-family:var(--font-mono);font-size:.8rem;color:var(--violet);}

/* ============ FAQ ============ */
.faq-list{margin-top:36px;display:flex;flex-direction:column;gap:10px;max-width:760px;}
.faq-item{
  background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius);
  padding:6px 22px;
}
.faq-item summary{
  cursor:pointer;padding:16px 0;font-weight:600;font-family:var(--font-display);
  list-style:none;display:flex;justify-content:space-between;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--amber);font-size:1.3rem;}
.faq-item[open] summary::after{content:"–";}
.faq-item p{padding-bottom:18px;font-size:.92rem;}

/* ============ COMMUNITY ============ */
.community-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}

/* ============ FOOTER ============ */
.site-footer{padding:64px 0 28px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;
}
.footer-brand p{font-size:.86rem;margin-top:10px;max-width:220px;}
.footer-col h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);margin-bottom:14px;}
.footer-col a{display:block;font-size:.9rem;color:var(--text-dim);margin-bottom:10px;transition:color .2s;}
.footer-col a:hover{color:var(--amber);}
.footer-bottom{border-top:1px solid var(--border);padding-top:22px;}
.footer-bottom p{font-size:.8rem;color:var(--text-faint);margin:0;}

/* ============ REVEAL ANIMATION ============ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease;}
.reveal.is-visible{opacity:1;transform:translateY(0);}

/* ============ RESPONSIVE ============ */
@media (max-width:900px){
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .model-grid{grid-template-columns:1fr;}
  .ecosystem-grid{grid-template-columns:repeat(2,1fr);}
  .workflow-steps{grid-template-columns:repeat(4,1fr);row-gap:32px;}
  .workflow-steps::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:680px){
  .nav-links{
    position:absolute;top:100%;left:0;right:0;background:var(--bg);
    flex-direction:column;align-items:flex-start;gap:0;
    border-bottom:1px solid var(--border);
    max-height:0;overflow:hidden;transition:max-height .25s ease;
  }
  .nav-links.open{max-height:480px;}
  .nav-links a{width:100%;padding:14px 24px;border-top:1px solid var(--border);}
  .nav-cta{margin:14px 24px;text-align:center;}
  .nav-toggle{display:flex;}
  .feature-grid{grid-template-columns:1fr;}
  .ecosystem-grid{grid-template-columns:1fr;}
  .workflow-steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr;}
}