:root{
  --primary:#4B46FA; --secondary:#FF6F4B; --dark:#111418; --light:#FBFBFD; --gray:#7A7E83;
  --bg:#FBFBFD; --fg:#111418; --muted:#5a5f66; --card:#ffffff; --border:#e6e6ee;
  --band:#f3f3fb; --shadow:0 8px 30px rgba(17,20,24,.07);
  --radius:16px; --wrap:1120px;
}
html[data-theme="dark"]{
  --bg:#0f1216; --fg:#f2f3f7; --muted:#a8adb6; --card:#171b21; --border:#262b33;
  --band:#141922; --shadow:0 8px 30px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--fg);
  font-family:'Segoe UI',system-ui,-apple-system,'Helvetica Neue',Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--primary)}
.skip-link{position:absolute;left:-999px;top:0;background:var(--primary);color:#fff;padding:8px 14px;z-index:100}
.skip-link:focus{left:8px;top:8px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.section{padding:56px 0}
.section.narrow{max-width:820px}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.link{font-weight:600;text-decoration:none}
.link:hover{text-decoration:underline}
h1{font-size:clamp(1.9rem,4vw,2.7rem);line-height:1.15;margin:0 0 .4rem}
h2{margin-top:2.2rem}
h3{margin:0 0 .4rem}

/* Header */
.site-header{position:sticky;top:0;background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--border);z-index:20}
.header-inner{display:flex;align-items:center;gap:18px;min-height:64px}
.brandmark{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--fg);font-size:1.05rem}
.brandmark .dot{width:14px;height:14px;border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));display:inline-block}
.site-nav{display:flex;gap:18px;margin-left:14px}
.site-nav a{color:var(--fg);text-decoration:none;font-weight:500;padding:6px 2px}
.site-nav a:hover{color:var(--primary)}
.site-nav a[aria-current="page"]{color:var(--primary);border-bottom:2px solid var(--primary)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:11px;padding:10px 16px;
  font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;font-size:.95rem}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;color:var(--fg);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-google{background:#fff;color:#111418;border-color:#dadce0;width:100%;justify-content:center}
.btn-google .g{font-weight:800;color:#4285F4}
.theme-toggle,.nav-toggle{background:transparent;border:1px solid var(--border);color:var(--fg);
  border-radius:10px;padding:7px 10px;cursor:pointer}
.theme-toggle:hover,.nav-toggle:hover{border-color:var(--primary)}
.theme-icon{font-size:1rem}
.nav-toggle{display:none}

/* Hero */
.hero{padding:64px 0 30px;background:
  radial-gradient(900px 320px at 12% -10%, color-mix(in srgb,var(--primary) 16%,transparent), transparent),
  radial-gradient(700px 300px at 90% 0%, color-mix(in srgb,var(--secondary) 14%,transparent), transparent)}
.hero h1{max-width:820px}
.lead{font-size:1.15rem;color:var(--muted);max-width:720px}
.badge{display:inline-block;background:color-mix(in srgb,var(--primary) 14%,transparent);
  color:var(--primary);border-radius:999px;padding:4px 12px;font-size:.8rem;font-weight:600;margin-bottom:14px}
.hero-cta{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}

/* Cards / grid */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:22px}
.grid.two{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.grid.three{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow)}
.card ul{margin:.4rem 0 0;padding-left:1.1rem}
.card li{margin:.2rem 0}
.band{background:var(--band);border-radius:var(--radius)}
.split{display:grid;grid-template-columns:1.6fr .6fr;gap:24px;align-items:center}
.stat{text-align:center}
.stat strong{font-size:3rem;color:var(--primary);display:block;line-height:1}
.stat span{color:var(--muted);font-size:.9rem}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{background:var(--card);border:1px solid var(--border);border-radius:999px;padding:5px 12px;font-size:.85rem}
.warn li{margin:.3rem 0}

/* Pricing */
.plan{display:flex;flex-direction:column;position:relative}
.plan-featured{border-color:var(--primary);box-shadow:0 12px 40px color-mix(in srgb,var(--primary) 22%,transparent)}
.tag{position:absolute;top:-11px;left:22px;background:var(--secondary);color:#fff;font-size:.72rem;
  font-weight:700;padding:3px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.04em}
.price{font-size:2rem;font-weight:800;margin:.2rem 0}
.price .cur{font-size:1rem;font-weight:600;color:var(--muted);vertical-align:top}
.price .per{font-size:.95rem;font-weight:500;color:var(--muted)}
.plan .btn{margin-top:auto}

/* Forms / auth */
.auth{max-width:460px}
.form{display:flex;flex-direction:column;gap:6px;margin-top:16px}
.form label{font-weight:600;font-size:.9rem;margin-top:8px}
.form input,.form select{padding:11px 12px;border:1px solid var(--border);border-radius:10px;
  background:var(--card);color:var(--fg);font-size:1rem;font-family:inherit}
.form input:focus,.form select:focus{outline:2px solid var(--primary);outline-offset:1px;border-color:var(--primary)}
.form .btn{margin-top:16px}
.hint{color:var(--muted);font-size:.8rem;margin:2px 0 0}
.divider{display:flex;align-items:center;gap:12px;color:var(--muted);margin:18px 0}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--border)}
.divider span{font-size:.85rem}

/* FAISS / notices */
.faq details{background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:14px 16px;margin:10px 0}
.faq summary{cursor:pointer;font-weight:600}
.notice{background:color-mix(in srgb,var(--secondary) 12%,transparent);
  border:1px solid color-mix(in srgb,var(--secondary) 42%,transparent);
  border-radius:12px;padding:14px 16px;margin:18px 0}
.steps li{margin:.5rem 0}

/* Footer */
.site-footer{border-top:1px solid var(--border);margin-top:50px;padding:30px 0 50px}
.footer-inner{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:flex-start}
.site-footer nav{display:flex;flex-wrap:wrap;gap:14px}
.site-footer a{color:var(--fg);text-decoration:none}
.site-footer a:hover{color:var(--primary)}

/* Tables + status (workspace) */
.table{width:100%;border-collapse:collapse;margin-top:10px;font-size:.92rem}
.table th,.table td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--border)}
.table th{color:var(--muted);font-weight:600}
.status{display:inline-block;border-radius:999px;padding:2px 10px;font-size:.78rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.03em}
.status-completed{background:color-mix(in srgb,var(--primary) 16%,transparent);color:var(--primary)}
.status-failed{background:color-mix(in srgb,var(--secondary) 20%,transparent);color:#b83a1b}
.status-running{background:color-mix(in srgb,#f5a623 22%,transparent);color:#8a5a00}
.status-queued{background:color-mix(in srgb,var(--gray) 20%,transparent);color:var(--fg)}
input[type=file]{padding:9px;border:1px dashed var(--border);border-radius:10px;background:var(--card);color:var(--fg)}
.inline-form{display:inline}

/* Focus visibility */
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

/* Responsive nav */
@media (max-width:820px){
  .nav-toggle{display:inline-block;margin-left:auto;order:2}
  .site-nav{display:none;flex-direction:column;width:100%;order:4;margin:0;
    border-top:1px solid var(--border)}
  .site-nav.open{display:flex}
  .site-nav a{padding:12px 4px;border-bottom:1px solid var(--border)}
  .site-nav a[aria-current="page"]{border-bottom:1px solid var(--border)}
  .header-actions{order:3;margin-left:0;width:100%;padding:10px 0}
  .header-actions .btn-ghost{display:none}
  .split{grid-template-columns:1fr}
  .header-inner{flex-wrap:wrap;padding:8px 0}
}