/* ===================== RESET & TOKENS ===================== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#07070d;
  --bg-2:#0b0b16;
  --panel:#0e0e1c;
  --panel-2:#12122400;
  --border:rgba(130,130,200,.14);
  --border-soft:rgba(130,130,200,.09);
  --text:#e9e9f3;
  --muted:#9a9ab5;
  --muted-2:#6f6f8c;
  --purple:#7c5cff;
  --purple-2:#a78bff;
  --blue:#4aa8ff;
  --radius:16px;
  --max:1120px;
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 500px at 78% 6%, rgba(90,70,220,.18), transparent 60%),
    radial-gradient(700px 500px at 10% 2%, rgba(60,120,220,.10), transparent 55%);
  background-repeat:no-repeat;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ===================== BUTTONS ===================== */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  font-weight:600;font-size:15px;
  padding:12px 22px;border-radius:11px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease,border-color .2s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--purple),#5b7bff);
  color:#fff;box-shadow:0 6px 20px rgba(96,72,255,.35);
}
.btn-primary:hover{box-shadow:0 10px 28px rgba(96,72,255,.5)}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border-color:var(--border);color:var(--text);
}
.btn-ghost:hover{border-color:rgba(150,150,230,.4);background:rgba(255,255,255,.05)}

/* ===================== HEADER ===================== */
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(12px);
  background:rgba(7,7,13,.72);
  border-bottom:1px solid var(--border-soft);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{display:grid;place-items:center}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{font-size:17px;letter-spacing:.14em;font-weight:800}
.brand-text small{font-size:9px;letter-spacing:.24em;color:var(--muted-2);font-weight:600}
.main-nav{display:flex;gap:28px}
.main-nav a{color:var(--muted);font-size:14.5px;font-weight:500;transition:color .15s}
.main-nav a:hover{color:var(--text)}

/* ===================== HERO ===================== */
.hero{padding:72px 0 40px;position:relative}
.hero-grid{
  display:grid;grid-template-columns:1.05fr 1fr;
  gap:56px;align-items:center;
}
.badge{
  display:inline-block;
  font-size:11px;letter-spacing:.14em;font-weight:700;
  color:var(--purple-2);
  padding:7px 14px;border-radius:999px;
  border:1px solid rgba(124,92,255,.35);
  background:rgba(124,92,255,.08);
}
.hero-copy h1{
  font-size:clamp(38px,5vw,58px);
  line-height:1.06;font-weight:800;letter-spacing:-.02em;
  margin:22px 0 20px;
}
.grad{
  background:linear-gradient(100deg,var(--purple-2),var(--blue));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{color:var(--muted);font-size:17px;max-width:520px}
.hero-actions{display:flex;gap:14px;margin:30px 0 32px;flex-wrap:wrap}
.social-proof{display:flex;align-items:center;gap:14px}
.avatars{display:flex}
.avatars span{
  width:34px;height:34px;border-radius:50%;
  border:2px solid var(--bg);margin-left:-9px;
  background:linear-gradient(135deg,#5b7bff,#a78bff);
}
.avatars span:first-child{margin-left:0}
.avatars span:nth-child(2){background:linear-gradient(135deg,#4aa8ff,#7c5cff)}
.avatars span:nth-child(3){background:linear-gradient(135deg,#a78bff,#ff8bd0)}
.avatars span:nth-child(4){background:linear-gradient(135deg,#4affc0,#4aa8ff)}
.social-proof p{font-size:13.5px;color:var(--muted)}

/* ---- Hero visual ---- */
.hero-visual{
  position:relative;min-height:440px;
  display:grid;place-items:center;
}
.hero-links{
  position:absolute;inset:0;width:100%;height:100%;
  z-index:0;pointer-events:none;
}
.hero-links .lk{
  stroke-dasharray:3 4;
  animation:flow 3.2s linear infinite;
}
.hero-links .lk:nth-child(even){animation-duration:4.1s}
@keyframes flow{to{stroke-dashoffset:-28}}
.hero-links .lk-dot{animation:blink 2.6s ease-in-out infinite}
.hero-links .lk-dot:nth-child(odd){animation-delay:1.1s}
@keyframes blink{0%,100%{opacity:.35}50%{opacity:1}}
.orb{
  position:relative;z-index:1;
  width:230px;height:230px;border-radius:50%;
  background:
    radial-gradient(circle at 50% 45%, rgba(167,139,255,.9), rgba(90,60,220,.35) 45%, transparent 70%);
  filter:blur(2px);
  box-shadow:0 0 90px rgba(124,92,255,.55),inset 0 0 60px rgba(74,168,255,.5);
  animation:pulse 5s ease-in-out infinite;
}
@keyframes pulse{0%,100%{transform:scale(1);opacity:.95}50%{transform:scale(1.06);opacity:1}}
.node{
  position:absolute;z-index:2;
  width:112px;min-height:70px;
  padding:10px 12px;border-radius:12px;
  background:rgba(16,16,32,.82);
  border:1px solid var(--border);
  backdrop-filter:blur(6px);
  display:flex;flex-direction:column;gap:8px;
  font-size:12px;box-shadow:0 8px 30px rgba(0,0,0,.4);
}
.node-title{color:var(--text);font-weight:600;font-size:12px}
.node-body{color:var(--muted);font-size:11px;min-height:26px;display:block;border-radius:6px}
.node-wave{background:linear-gradient(120deg,rgba(124,92,255,.5),rgba(74,168,255,.25))}
.node-spiral{background:radial-gradient(circle,rgba(74,168,255,.6),transparent 70%)}
.node-dots{background:radial-gradient(circle at 30% 40%,#4aa8ff 1px,transparent 1.5px) 0 0/12px 12px}
.node-graph{background:linear-gradient(90deg,transparent,rgba(167,139,255,.4))}
.node-brain{background:radial-gradient(circle,rgba(124,92,255,.5),transparent 65%)}
.node-doc{background:linear-gradient(180deg,rgba(255,255,255,.12),transparent)}
.node-equation{top:6%;left:44%}
.node-model{top:4%;right:0}
.node-sim{top:34%;left:0}
.node-dataset{top:32%;right:-4%}
.node-experiment{bottom:8%;left:6%}
.node-ai{bottom:0;left:44%}
.node-pub{bottom:8%;right:0}

/* ===================== STATS BAR ===================== */
.stats-bar{
  margin-top:44px;
  display:grid;grid-template-columns:repeat(6,1fr);
  gap:8px;padding:24px 20px;
  border:1px solid var(--border-soft);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(20,20,40,.5),rgba(12,12,24,.3));
}
.stat{display:flex;flex-direction:column;align-items:center;gap:3px;text-align:center;
  border-right:1px solid var(--border-soft);padding:4px 8px}
.stat:last-child{border-right:none}
.stat-num{font-size:24px;font-weight:800;background:linear-gradient(100deg,var(--purple-2),var(--blue));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{font-size:12.5px;color:var(--muted)}

/* ===================== SECTIONS ===================== */
.section{padding:72px 0}
.eyebrow{text-align:center;color:var(--purple-2);font-size:12px;letter-spacing:.18em;font-weight:700}
.section-title{font-size:clamp(26px,3.4vw,34px);font-weight:800;text-align:center;margin:12px 0 16px;letter-spacing:-.01em}
.section-title.center{margin-bottom:48px}
.section-sub{text-align:center;color:var(--muted);font-size:16px;max-width:680px;margin:0 auto 44px}

/* ===================== PROBLEM → SOLUTION ===================== */
.ps-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.ps-col{padding:28px 26px;border-radius:var(--radius);border:1px solid var(--border-soft)}
.ps-problem{background:rgba(40,16,20,.35);border-color:rgba(255,90,90,.18)}
.ps-solution{background:rgba(16,26,40,.4);border-color:rgba(74,168,255,.2)}
.ps-col h3{font-size:18px;font-weight:700;margin-bottom:18px}
.ps-problem h3{color:#ff8b8b}
.ps-solution h3{color:#7cc4ff}
.ps-col ul{list-style:none;display:flex;flex-direction:column;gap:14px}
.ps-col li{position:relative;padding-left:26px;font-size:14.5px;color:var(--muted)}
.ps-col li strong{color:var(--text);font-weight:600}
.ps-col li::before{position:absolute;left:0;top:0;font-weight:700}
.ps-problem li::before{content:"✕";color:#ff6b6b}
.ps-solution li::before{content:"✓";color:#4affc0}

/* ===================== HOW IT WORKS ===================== */
.hiw-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.hiw-step{padding:28px 26px;border-radius:var(--radius);background:rgba(14,14,28,.6);border:1px solid var(--border-soft);position:relative}
.hiw-num{font-size:34px;font-weight:800;background:linear-gradient(100deg,var(--purple-2),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent;display:block;margin-bottom:12px}
.hiw-step h3{font-size:19px;font-weight:700;margin-bottom:10px}
.hiw-step>p{color:var(--muted);font-size:14.5px;margin-bottom:16px}
.hiw-list{list-style:none;display:flex;flex-direction:column;gap:9px}
.hiw-list li{position:relative;padding-left:22px;font-size:13.5px;color:var(--muted)}
.hiw-list li::before{content:"→";position:absolute;left:0;color:var(--purple-2);font-weight:700}

/* ===================== BENEFITS ===================== */
.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:56px}
.benefit{padding:26px 22px;border-radius:var(--radius);background:rgba(14,14,28,.6);border:1px solid var(--border-soft);text-align:center}
.b-metric{font-size:40px;font-weight:800;background:linear-gradient(100deg,var(--purple-2),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent;display:block;margin-bottom:8px;line-height:1}
.benefit h4{font-size:16px;font-weight:700;margin-bottom:6px}
.benefit p{color:var(--muted);font-size:13.5px}
.who-for h3{text-align:center;font-size:20px;font-weight:700;margin-bottom:24px}
.who-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.who-card{padding:22px 20px;border-radius:14px;border:1px solid var(--border-soft);background:rgba(12,12,24,.4)}
.who-card span{font-size:24px;display:block;margin-bottom:10px}
.who-card strong{display:block;font-size:15px;font-weight:700;margin-bottom:6px}
.who-card p{color:var(--muted);font-size:13px}

/* ===================== FEATURES ===================== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  padding:26px 24px;border-radius:var(--radius);
  background:rgba(14,14,28,.6);
  border:1px solid var(--border-soft);
  transition:transform .2s ease,border-color .2s,box-shadow .2s;
}
.card:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.4);box-shadow:0 16px 40px rgba(60,40,160,.25)}
.card-icon{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  font-size:20px;margin-bottom:16px;
  background:rgba(124,92,255,.12);border:1px solid rgba(124,92,255,.25);color:var(--purple-2);
}
.card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px;margin-bottom:16px}
.card-link{color:var(--purple-2);font-size:14px;font-weight:600}
.card-link:hover{color:var(--blue)}

/* ===================== WORKFLOW ===================== */
.workflow-steps{
  list-style:none;display:grid;grid-template-columns:repeat(8,1fr);
  gap:8px;position:relative;
}
.workflow-steps::before{
  content:"";position:absolute;top:28px;left:6%;right:6%;height:1px;
  background:repeating-linear-gradient(90deg,var(--border) 0 8px,transparent 8px 16px);
  z-index:0;
}
.workflow-steps li{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;position:relative;z-index:1}
.wf-circle{
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  font-size:20px;background:var(--bg-2);
  border:2px solid rgba(124,92,255,.4);
  box-shadow:0 0 0 6px rgba(124,92,255,.05);
}
.wf-circle.c5{border-color:rgba(74,168,255,.5)}
.wf-circle.c6{border-color:rgba(74,200,255,.5)}
.wf-circle.c7{border-color:rgba(255,90,90,.5)}
.wf-circle.c8{border-color:rgba(240,180,60,.5)}
.workflow-steps h4{font-size:14px;font-weight:700}
.workflow-steps p{font-size:12px;color:var(--muted-2);max-width:120px}

/* ===================== REVIEWS & COMMENTS ===================== */
.reviews-layout{display:grid;grid-template-columns:0.9fr 1.1fr;gap:24px;align-items:start}
.review-form{
  padding:28px 26px;border-radius:var(--radius);
  background:rgba(14,14,28,.6);border:1px solid var(--border-soft);
  display:flex;flex-direction:column;position:sticky;top:92px;
}
.review-form h3{font-size:18px;font-weight:700;margin-bottom:16px}
.review-form label{font-size:13px;font-weight:600;color:var(--muted);margin:12px 0 6px}
.review-form .req{color:#ff6b6b}
.review-form input,.review-form select,.review-form textarea{
  width:100%;font-family:inherit;font-size:14.5px;color:var(--text);
  background:rgba(7,7,13,.7);border:1px solid var(--border);
  border-radius:10px;padding:11px 13px;transition:border-color .15s,box-shadow .15s;
}
.review-form textarea{resize:vertical;min-height:96px}
.review-form input:focus,.review-form select:focus,.review-form textarea:focus{
  outline:none;border-color:rgba(124,92,255,.6);box-shadow:0 0 0 3px rgba(124,92,255,.15);
}
.review-form select{appearance:none;cursor:pointer}
.review-form .hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.review-form .btn{margin-top:18px;justify-content:center}
.form-status{font-size:13px;margin-top:10px;min-height:18px;color:var(--muted)}
.form-status.error{color:#ff8b8b}
.form-status.success{color:#4affc0}

.feed-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:16px}
.feed-head h3{font-size:18px;font-weight:700}
.feed-count{font-size:13px;color:var(--muted-2)}
.review-list{display:flex;flex-direction:column;gap:14px;max-height:560px;overflow-y:auto;padding-right:4px}
.feed-empty{color:var(--muted-2);font-size:14px;padding:20px 0}
.feed-empty code{background:rgba(255,255,255,.06);padding:1px 6px;border-radius:5px;font-size:12.5px}
.rv-card{display:flex;gap:14px;padding:18px 18px;border-radius:14px;
  background:rgba(12,12,24,.5);border:1px solid var(--border-soft)}
.rv-avatar{flex:0 0 auto;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  font-size:14px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--purple),#5b7bff)}
.rv-body{min-width:0;flex:1}
.rv-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:6px}
.rv-name{font-weight:700;font-size:14.5px}
.rv-role{font-size:12.5px;color:var(--muted)}
.rv-kind{font-size:10.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
  padding:2px 8px;border-radius:999px;border:1px solid var(--border)}
.rv-review{color:#4affc0;border-color:rgba(74,255,192,.3)}
.rv-question{color:#7cc4ff;border-color:rgba(124,196,255,.3)}
.rv-comment{color:var(--purple-2);border-color:rgba(167,139,255,.3)}
.rv-time{font-size:12px;color:var(--muted-2);margin-left:auto}
.rv-text{font-size:14px;color:var(--text);word-wrap:break-word;white-space:pre-wrap}

/* ===================== TRUSTED ===================== */
.logo-row{
  display:grid;grid-template-columns:repeat(7,1fr);
  border:1px solid var(--border-soft);border-radius:var(--radius);
  overflow:hidden;background:rgba(12,12,24,.4);
}
.logo-cell{
  padding:34px 12px;text-align:center;
  font-size:16px;font-weight:700;color:var(--muted);
  border-right:1px solid var(--border-soft);
  display:grid;place-items:center;min-height:100px;letter-spacing:.02em;
}
.logo-cell:last-child{border-right:none}
.logo-cell.muted{font-size:12px;font-weight:500;color:var(--muted-2);line-height:1.4}

/* ===================== CTA ===================== */
.cta-banner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:44px 48px;border-radius:22px;
  border:1px solid rgba(124,92,255,.28);
  background:
    radial-gradient(600px 300px at 12% 120%, rgba(90,60,220,.4), transparent 60%),
    linear-gradient(120deg,rgba(24,18,54,.9),rgba(12,14,34,.9));
  box-shadow:0 20px 60px rgba(40,20,120,.35);
}
.cta-text h2{font-size:26px;font-weight:800;margin-bottom:6px}
.cta-text p{color:var(--muted)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===================== FOOTER ===================== */
.site-footer{border-top:1px solid var(--border-soft);padding-top:56px;margin-top:24px}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr repeat(4,1fr) 1.1fr;
  gap:28px;padding-bottom:40px;
}
.footer-tag{color:var(--muted-2);font-size:13.5px;margin-top:16px;max-width:260px}
.footer-col{display:flex;flex-direction:column;gap:11px}
.footer-col h5{font-size:14px;font-weight:700;margin-bottom:4px}
.footer-col a{color:var(--muted);font-size:13.5px;transition:color .15s}
.footer-col a:hover{color:var(--text)}
.social-icons{display:flex;gap:10px}
.social-icons a{
  width:36px;height:36px;border-radius:9px;display:grid;place-items:center;
  background:rgba(255,255,255,.04);border:1px solid var(--border-soft);
  font-size:14px;color:var(--muted);transition:.15s;
}
.social-icons a:hover{color:var(--text);border-color:rgba(124,92,255,.4)}
.footer-bottom{border-top:1px solid var(--border-soft);padding-top:20px;padding-bottom:28px}
.footer-bottom p{color:var(--muted-2);font-size:13px;text-align:right}

/* ===================== RESPONSIVE ===================== */
@media(max-width:960px){
  .main-nav{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{min-height:360px;order:-1}
  .stats-bar{grid-template-columns:repeat(3,1fr);gap:20px 8px}
  .stat:nth-child(3n){border-right:none}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .ps-grid{grid-template-columns:1fr}
  .hiw-grid{grid-template-columns:1fr}
  .benefit-grid{grid-template-columns:repeat(2,1fr)}
  .who-grid{grid-template-columns:repeat(2,1fr)}
  .reviews-layout{grid-template-columns:1fr;gap:28px}
  .review-form{position:static}
  .workflow-steps{grid-template-columns:repeat(4,1fr);gap:24px 8px}
  .workflow-steps::before{display:none}
  .logo-row{grid-template-columns:repeat(3,1fr)}
  .logo-cell:nth-child(3n){border-right:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .hero{padding:48px 0 24px}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3n){border-right:1px solid var(--border-soft)}
  .stat:nth-child(2n){border-right:none}
  .feature-grid{grid-template-columns:1fr}
  .benefit-grid{grid-template-columns:1fr}
  .who-grid{grid-template-columns:1fr}
  .workflow-steps{grid-template-columns:repeat(2,1fr)}
  .logo-row{grid-template-columns:repeat(2,1fr)}
  .logo-cell:nth-child(3n){border-right:1px solid var(--border-soft)}
  .logo-cell:nth-child(2n){border-right:none}
  .cta-banner{padding:32px 24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom p{text-align:left}
  .header-inner{height:64px}
}