/* ===== Vanad Design System ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --bg-primary:#0c0c0f;
  --bg-secondary:#141419;
  --bg-tertiary:#1e1e26;
  --text-primary:#f0f0f5;
  --text-secondary:#9a9aa8;
  --text-tertiary:#6a6a78;
  --accent:#00d4aa;
  --accent-2:#6366f1;
  --border:#2a2a35;
  --success:#22c55e;
  --warning:#eab308;
  --max-w:1280px;
  --radius:6px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg-primary);
  color:var(--text-primary);
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:0.01ms !important;transition-duration:0.01ms !important;}
}

h1,h2,h3,h4{
  font-weight:800;
  letter-spacing:-0.02em;
  line-height:1.1;
}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
img{display:block;max-width:100%;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.mono{font-family:'JetBrains Mono',monospace;}
.eyebrow{
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:0.08em;
  color:var(--text-tertiary);
  font-weight:600;
}
.wrap{max-width:var(--max-w);margin:0 auto;padding:0 32px;}
@media (max-width:640px){.wrap{padding:0 20px;}}

/* ---- Nav ---- */
.nav{
  position:sticky;top:0;z-index:100;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s ease, border-color .25s ease;
}
.nav.scrolled{background:rgba(12,12,15,0.92);backdrop-filter:blur(10px);border-bottom-color:var(--border);}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;
}
.nav-logo{font-weight:800;font-size:18px;letter-spacing:-0.02em;}
.nav-logo span{color:var(--accent);}
.nav-links{display:flex;gap:28px;font-size:14px;color:var(--text-secondary);}
.nav-links a:hover{color:var(--text-primary);}
.nav-cta{display:flex;align-items:center;gap:12px;}
.nav-links, .nav-cta{ }
@media (max-width:900px){.nav-links{display:none;}}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;
  border-radius:var(--radius);
  font-size:14px;font-weight:600;
  transition:all .15s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#04211b;}
.btn-primary:hover{background:#22e0bb;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--text-primary);border:1px solid var(--border);}
.btn-ghost:hover{border-color:var(--text-secondary);}
.btn-lg{padding:14px 26px;font-size:15px;}
.btn-block{width:100%;}

/* ---- Hero ---- */
.hero{padding:64px 0 96px;}
.hero-head{max-width:680px;margin-bottom:40px;}
.hero-head h1{font-size:52px;margin-bottom:14px;}
.hero-head p{font-size:18px;color:var(--text-secondary);}
@media (max-width:640px){.hero-head h1{font-size:34px;}}

.workspace{
  background:var(--bg-secondary);
  border:1px solid var(--border);
  border-radius:12px;
  overflow:hidden;
}
.workspace-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;border-bottom:1px solid var(--border);
  flex-wrap:wrap;gap:8px;
}
.workspace-title{font-weight:700;font-size:15px;}
.workspace-meta{font-size:13px;color:var(--text-tertiary);font-family:'JetBrains Mono',monospace;}
.workspace-body{padding:24px;}

.query-box{
  display:flex;align-items:center;gap:10px;
  background:var(--bg-tertiary);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px 16px;
  margin-bottom:16px;
}
.query-box input{
  flex:1;background:none;border:none;color:var(--text-primary);font-size:15px;
}
.query-box input::placeholder{color:var(--text-tertiary);}
.query-box input:focus{outline:none;}
.query-icon{color:var(--text-tertiary);flex-shrink:0;}

.presets{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.preset-chip{
  font-size:12.5px;color:var(--text-secondary);
  border:1px solid var(--border);border-radius:100px;
  padding:7px 14px;transition:all .15s ease;
  text-align:left;
}
.preset-chip:hover{border-color:var(--accent);color:var(--text-primary);}
.preset-chip.active{border-color:var(--accent);color:var(--accent);background:rgba(0,212,170,0.08);}

.answer-card{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--bg-tertiary);
  padding:20px;
  margin-bottom:16px;
  display:none;
}
.answer-card.show{display:block;animation:fadeUp .35s ease both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}
.answer-label{
  font-size:11px;letter-spacing:0.08em;text-transform:uppercase;
  color:var(--accent);font-weight:700;margin-bottom:12px;
  display:flex;align-items:center;gap:8px;
}
.answer-label::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent);}
.answer-text{font-size:15px;color:var(--text-primary);margin-bottom:8px;min-height:1.65em;}
.answer-text .cursor{display:inline-block;width:2px;height:1em;background:var(--accent);vertical-align:middle;margin-left:2px;animation:blink 1s step-end infinite;}
@keyframes blink{50%{opacity:0;}}

.conflict-banner{
  display:flex;gap:10px;align-items:flex-start;
  background:rgba(234,179,8,0.08);
  border:1px solid rgba(234,179,8,0.3);
  border-radius:var(--radius);
  padding:12px 14px;margin:14px 0;
  font-size:13.5px;color:#f0dca0;
  opacity:0;transition:opacity .3s ease;
}
.conflict-banner.show{opacity:1;}

.answer-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;opacity:0;transition:opacity .3s ease .1s;}
.answer-actions.show{opacity:1;}
.mini-btn{
  font-size:12.5px;padding:7px 12px;border:1px solid var(--border);
  border-radius:var(--radius);color:var(--text-secondary);
}
.mini-btn:hover{color:var(--text-primary);border-color:var(--text-secondary);}
.mini-btn.accent{color:var(--accent);border-color:rgba(0,212,170,0.35);}

.graph-panel{
  border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;background:var(--bg-tertiary);
}
.graph-panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;}
.graph-panel-head h4{font-size:13px;color:var(--text-secondary);font-weight:600;letter-spacing:0.02em;}
.graph-svg{width:100%;height:auto;display:block;}
.graph-node-label{font-family:'JetBrains Mono',monospace;font-size:10.5px;fill:var(--text-secondary);}

.hero-cta-row{display:flex;justify-content:center;margin-top:28px;}

/* ---- Sections ---- */
.section{padding:96px 0;border-top:1px solid var(--border);}
.section-head{max-width:620px;margin-bottom:56px;}
.section-head .eyebrow{margin-bottom:10px;}
.section-head h2{font-size:36px;}
@media (max-width:640px){.section-head h2{font-size:28px;}}

.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media (max-width:900px){.cards-3{grid-template-columns:1fr;}}
.capability-card{
  border:1px solid var(--border);border-radius:8px;
  background:var(--bg-secondary);
  padding:24px;
  transition:border-color .2s ease;
}
.capability-card:hover{border-color:var(--accent);}
.capability-card h3{font-size:17px;margin-bottom:10px;}
.capability-card p{font-size:14px;color:var(--text-secondary);margin-bottom:16px;}
.capability-visual{
  border:1px solid var(--border);border-radius:6px;
  background:var(--bg-tertiary);
  padding:16px;height:120px;
  display:flex;align-items:center;justify-content:center;
}

.int-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
@media (max-width:900px){.int-grid{grid-template-columns:repeat(2,1fr);}}
.int-card{
  border:1px solid var(--border);border-radius:var(--radius);
  background:var(--bg-secondary);
  padding:18px;display:flex;flex-direction:column;gap:10px;
}
.int-card-top{display:flex;justify-content:space-between;align-items:flex-start;}
.int-name{font-weight:600;font-size:14.5px;}
.int-status{
  font-size:10.5px;text-transform:uppercase;letter-spacing:0.06em;
  color:var(--success);display:flex;align-items:center;gap:5px;
}
.int-status::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--success);}
.int-sync{font-size:11.5px;color:var(--text-tertiary);font-family:'JetBrains Mono',monospace;}
.int-caption{
  margin-top:24px;font-size:13.5px;color:var(--text-tertiary);
  text-align:center;
}

.use-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media (max-width:900px){.use-grid{grid-template-columns:1fr;}}
.use-card{
  border:1px solid var(--border);border-radius:8px;
  background:var(--bg-secondary);padding:22px;
}
.use-card .role{font-size:12px;color:var(--accent-2);text-transform:uppercase;letter-spacing:0.06em;font-weight:600;margin-bottom:10px;}
.use-card p{font-size:14.5px;color:var(--text-secondary);}

/* ---- Pricing table ---- */
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
@media (max-width:1000px){.price-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.price-grid{grid-template-columns:1fr;}}
.price-card{
  border:1px solid var(--border);border-radius:8px;
  background:var(--bg-secondary);
  padding:26px;display:flex;flex-direction:column;
}
.price-card.featured{border-color:var(--accent);position:relative;}
.price-card.featured::before{
  content:'MOST POPULAR';font-size:10px;letter-spacing:0.08em;
  color:#04211b;background:var(--accent);font-weight:700;
  position:absolute;top:-11px;left:24px;padding:3px 10px;border-radius:100px;
}
.price-plan{font-size:15px;font-weight:700;margin-bottom:6px;}
.price-amount{font-size:32px;font-weight:800;margin-bottom:4px;}
.price-amount span{font-size:14px;color:var(--text-tertiary);font-weight:500;}
.price-for{font-size:13px;color:var(--text-tertiary);margin-bottom:18px;}
.price-features{list-style:none;font-size:13.5px;color:var(--text-secondary);margin-bottom:22px;flex:1;}
.price-features li{padding:7px 0;border-top:1px solid var(--border);display:flex;gap:8px;}
.price-features li:first-child{border-top:none;}
.price-features li::before{content:'✓';color:var(--accent);flex-shrink:0;}

/* ---- Footer ---- */
.footer{border-top:1px solid var(--border);padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:48px;}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;}}
.footer-col h5{font-size:12px;text-transform:uppercase;letter-spacing:0.08em;color:var(--text-tertiary);margin-bottom:16px;}
.footer-col a, .footer-col p{display:block;font-size:14px;color:var(--text-secondary);margin-bottom:10px;}
.footer-col a:hover{color:var(--text-primary);}
.footer-bottom{
  border-top:1px solid var(--border);padding-top:24px;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  font-size:13px;color:var(--text-tertiary);
}
.footer-brand{font-weight:800;color:var(--accent);}

/* ---- About page ---- */
.about-hero{padding:80px 0 40px;text-align:center;}
.about-hero h1{font-size:40px;margin-bottom:12px;}
.about-hero p{color:var(--text-secondary);font-size:16px;max-width:560px;margin:0 auto;}
.founder-card{
  max-width:640px;margin:56px auto 0;
  border:1px solid var(--border);border-radius:12px;
  background:var(--bg-secondary);
  padding:40px;text-align:center;
}
.founder-photo{
  width:120px;height:120px;border-radius:50%;
  object-fit:cover;margin:0 auto 20px;
  border:2px solid var(--accent);
}
.founder-card h2{font-size:22px;margin-bottom:4px;}
.founder-role{color:var(--accent);font-size:13px;text-transform:uppercase;letter-spacing:0.06em;font-weight:700;margin-bottom:18px;}
.founder-bio{color:var(--text-secondary);font-size:15px;max-width:460px;margin:0 auto 22px;}
.founder-meta{display:flex;flex-direction:column;gap:8px;font-size:14px;color:var(--text-secondary);}
.founder-meta a:hover{color:var(--accent);}

.facts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:640px;margin:56px auto 0;}
@media (max-width:600px){.facts-grid{grid-template-columns:1fr;}}
.fact{border:1px solid var(--border);border-radius:var(--radius);padding:18px;text-align:center;}
.fact-label{font-size:11px;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-tertiary);margin-bottom:6px;}
.fact-value{font-size:15px;font-weight:600;}

.note-card{
  max-width:640px;margin:40px auto 0;
  border:1px dashed var(--border);border-radius:var(--radius);
  padding:16px 20px;font-size:13.5px;color:var(--text-tertiary);
}

/* ---- FAQ ---- */
.faq-item{border-top:1px solid var(--border);padding:20px 0;}
.faq-item:last-child{border-bottom:1px solid var(--border);}
.faq-q{font-weight:600;font-size:15px;margin-bottom:8px;}
.faq-a{font-size:14px;color:var(--text-secondary);}

.center-cta{text-align:center;padding:80px 0;}
.center-cta h2{font-size:30px;margin-bottom:14px;}
.center-cta p{color:var(--text-secondary);margin-bottom:24px;}