:root{
  --bg:#ffffff; --fg:#0f172a; --muted:#55637a; --line:#e6eaf2;
  --primary:#2563eb; --primary-2:#7c3aed; --primary-3:#06b6d4;
  --grad:linear-gradient(90deg,#2563eb,#7c3aed);
  --accent:#16a34a;
  --card:#ffffff; --ghost:#f4f6fb; --radius:18px;
  --shadow:0 10px 34px -14px rgba(37,99,235,.28);
  --shadow-lg:0 24px 60px -20px rgba(15,23,42,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:ui-sans-serif,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--fg);line-height:1.65;overflow-x:hidden;-webkit-text-size-adjust:100%}
a{color:inherit;text-decoration:none}
img,svg{display:block}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}

/* ===== global glow bg ===== */
.bg-glow{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(600px 320px at 85% -10%, rgba(124,58,237,.12), transparent 60%),
    radial-gradient(700px 360px at -10% 18%, rgba(37,99,235,.12), transparent 60%);
}

/* ===== nav ===== */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800}
.logo{width:38px;height:38px;border-radius:11px;background:var(--grad);display:inline-grid;place-items:center;box-shadow:0 6px 16px -6px rgba(37,99,235,.6)}
.logo-ai{color:#fff;font-weight:800;font-size:16px}
.brand-text{font-size:16px}
.brand-text .muted{color:var(--muted);font-weight:600}
.nav-links{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:600}
.nav-links > a{color:var(--fg);opacity:.85;transition:.2s}
.nav-links > a:hover{opacity:1;color:var(--primary)}
.burger{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:8px}
.burger span{width:22px;height:2.4px;background:var(--fg);border-radius:2px;transition:.25s}
@media(max-width:760px){
  .nav-links{position:fixed;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#fff;padding:8px 20px 18px;box-shadow:0 18px 40px -20px rgba(0,0,0,.25);transform:translateY(-130%);transition:.3s}
  .nav-links.open{transform:none}
  .nav-links > a{padding:13px 0;width:100%;border-bottom:1px solid var(--line);opacity:1}
  .burger{display:flex}
}

/* ===== buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;cursor:pointer;font:inherit;font-weight:700;border-radius:12px;padding:12px 20px;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px -10px rgba(37,99,235,.65)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 32px -10px rgba(37,99,235,.75)}
.btn-ghost{background:#fff;color:var(--fg);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-accent{background:var(--grad);color:#fff;box-shadow:0 12px 30px -12px rgba(124,58,237,.7)}
.btn-accent:hover{transform:translateY(-1px)}
.btn-sm{padding:10px 16px;font-size:14px}
.btn-lg{padding:15px 22px;font-size:16px}
.arr{transition:.25s}
.btn:hover .arr{transform:translateX(4px)}

/* ===== sections ===== */
.section{padding:76px 0;position:relative}
.section.alt{background:linear-gradient(180deg,#fff,var(--ghost));border-block:1px solid var(--line)}
.sec-head{max-width:620px;margin:0 auto 42px;text-align:center}
.kicker{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--primary);background:rgba(37,99,235,.09);padding:5px 13px;border-radius:999px;margin-bottom:14px}
.sec-head h2{font-size:clamp(26px,4vw,36px);line-height:1.15;letter-spacing:-.02em;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:17px}

/* ===== HERO ===== */
.hero{padding-top:56px;padding-bottom:70px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--fg);background:#fff;border:1px solid var(--line);padding:7px 13px;border-radius:999px;margin-bottom:20px;box-shadow:0 4px 14px -8px rgba(15,23,42,.18)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(22,163,74,.5);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(22,163,74,0)}100%{box-shadow:0 0 0 0 rgba(22,163,74,0)}}
.hero h1{font-size:clamp(32px,5vw,50px);line-height:1.06;letter-spacing:-.03em;margin-bottom:20px;font-weight:800}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{color:var(--muted);font-size:18px;max-width:520px;margin-bottom:28px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap}
.stat{display:flex;flex-direction:column}
.stat strong{font-size:26px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.stat span{color:var(--muted);font-size:13px;margin-top:4px}

/* hero visual orbit */
.hero-visual{position:relative;height:340px}
.orbit{position:absolute;inset:0;display:grid;place-items:center}
.core{width:96px;height:96px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;font-size:34px;display:grid;place-items:center;box-shadow:0 20px 50px -18px rgba(37,99,235,.7);position:relative;z-index:3;animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.ring{position:absolute;border:1.8px dashed rgba(37,99,235,.35);border-radius:50%}
.r1{width:230px;height:230px;animation:spin 26s linear infinite}
.r2{width:300px;height:300px;border-color:rgba(124,58,237,.28);animation:spin 36s linear infinite reverse}
@keyframes spin{to{transform:rotate(360deg)}}
.node{position:absolute;z-index:2;background:#fff;border:1px solid var(--line);box-shadow:0 8px 20px -10px rgba(15,23,42,.2);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:700;display:flex;align-items:center;gap:6px;animation:float 5s ease-in-out infinite}
.node::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--primary)}
.n1{top:12%;left:2%}
.n2{top:30%;right:0}
.n3{bottom:22%;left:0}
.n4{bottom:0;right:6%;animation-delay:1s}
.float-card{position:absolute;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 14px;font-size:13px;font-weight:700;box-shadow:var(--shadow);z-index:4}
.fc1{bottom:8%;left:6%;color:var(--accent)}
.fc2{top:2%;right:4%;animation:float 6s ease-in-out infinite;animation-delay:1.2s}
@media(max-width:820px){
  .hero-grid{grid-template-columns:1fr;gap:16px}
  .hero-visual{height:250px}
  .hero{padding-top:38px}
}

/* ===== strip ===== */
.strip{border-block:1px solid var(--line);background:#fff;padding:16px 0}
.strip-row{display:flex;gap:22px;flex-wrap:wrap;align-items:center;font-size:14px;font-weight:600;color:var(--fg)}
.strip-row span{margin-right:auto}
.strip-row .muted{color:var(--muted)}

/* ===== cards ===== */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s;position:relative;overflow:hidden}
.card::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:.3s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.card:hover::after{transform:scaleX(1)}
.card-icon{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:22px;background:var(--ghost);margin-bottom:16px;transition:.25s}
.card:hover .card-icon{background:rgba(37,99,235,.1)}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px;margin-bottom:16px}
.tag-row{display:flex;gap:8px;flex-wrap:wrap}
.tag{font-size:11.5px;font-weight:700;color:var(--primary);background:rgba(37,99,235,.08);padding:4px 10px;border-radius:999px}
@media(max-width:900px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.cards{grid-template-columns:1fr}}

/* ===== steps ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.step-num{font-size:14px;font-weight:800;color:#fff;background:var(--grad);width:40px;height:40px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;box-shadow:0 8px 18px -8px rgba(37,99,235,.7)}
.step h3{font-size:18px;margin-bottom:8px}
.step p{color:var(--muted);font-size:15px}
@media(max-width:820px){.steps{grid-template-columns:1fr}.step{display:flex;gap:18px;align-items:flex-start}.step-num{margin-bottom:0}}

/* ===== compare ===== */
.compare{display:grid;grid-template-columns:1fr auto 1fr;gap:22px;align-items:stretch;max-width:820px;margin:0 auto}
.compare-col{border-radius:var(--radius);padding:26px}
.compare-col.old{background:#fafafa;border:1px solid var(--line)}
.compare-col.new{background:linear-gradient(180deg,#eef4ff,#f5efff);border:1px solid rgba(37,99,235,.25)}
.compare-col h4{margin-bottom:16px;font-size:18px}
.compare-col.old h4{color:var(--muted)}
.compare-col.new h4{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.compare-col ul{list-style:none;display:grid;gap:12px}
.compare-col li{position:relative;padding-left:26px;font-size:15px}
.compare-col.old li::before{content:"✕";position:absolute;left:0;color:#dc2626;font-weight:700}
.compare-col.new li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}
.vs{align-self:center;font-weight:800;color:var(--muted);font-size:20px}
@media(max-width:720px){.compare{grid-template-columns:1fr}.vs{justify-self:center;transform:rotate(90deg)}}

/* ===== pricing ===== */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;position:relative}
.price-card h3{font-size:17px;margin-bottom:6px}
.price{font-size:32px;font-weight:800;letter-spacing:-.02em;margin-bottom:2px}
.price-note{color:var(--muted);font-size:13px;margin-bottom:18px}
.rebate{display:inline-block;margin-top:6px;font-size:11.5px;font-weight:700;color:var(--accent);background:rgba(22,163,74,.1);padding:3px 9px;border-radius:999px}
.price-card ul{list-style:none;margin-bottom:22px}
.price-card li{position:relative;padding:7px 0 7px 24px;font-size:14.5px;color:var(--fg)}
.price-card li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}
.price-card .btn{margin-top:auto}
.price-card.featured{border-color:transparent;background:linear-gradient(180deg,#fff,#eef4ff);box-shadow:var(--shadow-lg)}
.ribbon{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:11.5px;font-weight:700;padding:5px 14px;border-radius:999px;white-space:nowrap}
.price-foot{text-align:center;color:var(--muted);font-size:14px;margin-top:18px}
@media(max-width:860px){.pricing{grid-template-columns:1fr}.price-card.featured{order:-1}}

/* ===== chips ===== */
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;max-width:760px;margin:0 auto}
.chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 18px;font-size:14px;font-weight:600;transition:.2s}
.chip:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:0 6px 16px -10px rgba(37,99,235,.5)}

/* ===== faq ===== */
.faq{max-width:720px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faq-item summary{cursor:pointer;padding:18px 20px;font-weight:700;font-size:16px;list-style:none;position:relative;padding-right:44px;transition:.2s}
.faq-item[open] summary{color:var(--primary)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:700;color:var(--primary);transition:.25s}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item p{padding:0 20px 18px;color:var(--muted);font-size:15px}

/* ===== contact ===== */
.contact{padding-top:40px;padding-bottom:80px}
.contact-card{background:linear-gradient(150deg,#0f1d3d,#1a2f63 60%,#2b1d63);border-radius:26px;padding:46px 40px;color:#fff;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.contact-card::before{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(37,99,235,.5),transparent 70%);right:-80px;top:-80px}
.contact-card .sec-head{margin-bottom:30px}
.contact-card .kicker{color:#c7d7ff;background:rgba(255,255,255,.12)}
.contact-card .sec-head h2{color:#fff}
.contact-card .sec-head p{color:#c3cde0}
.form{display:grid;gap:14px;position:relative;z-index:1}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form label{display:grid;gap:6px;font-size:13px;font-weight:600;color:#cfe0ff}
.form input,.form textarea{width:100%;padding:15px 16px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:rgba(255,255,255,.08);color:#fff;font:inherit;font-size:16px;transition:.2s;resize:vertical}
.form input::placeholder,.form textarea::placeholder{color:rgba(255,255,255,.5)}
.form input:focus,.form textarea:focus{outline:2px solid #fff;border-color:transparent;background:rgba(255,255,255,.14)}
.form .btn{margin-top:4px}
.form-status{margin-top:8px;text-align:center;font-weight:700;min-height:1.4em}
.form-status.ok{color:#7ef0a5}
.form-status.err{color:#ffb3b3}
.consent{font-size:12px;color:rgba(255,255,255,.6);text-align:center;margin-top:6px}
.consent a{color:#c7d7ff;text-decoration:underline}
.contact-email{margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);text-align:center;position:relative;z-index:1}
.ce-label{display:block;font-size:13px;font-weight:700;color:#cfe0ff;margin-bottom:6px}
.ce-mail{display:inline-block;font-size:17px;font-weight:800;color:#fff;padding:10px 18px;border:1.5px solid rgba(255,255,255,.35);border-radius:12px;transition:.2s}
.ce-mail:hover{background:rgba(255,255,255,.12);border-color:#fff}
@media(max-width:560px){.contact-card{padding:34px 24px}.f-row{grid-template-columns:1fr}}

/* ===== footer ===== */
.footer{padding:40px 0;border-top:1px solid var(--line)}
.foot-top{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center;margin-bottom:22px}
.foot-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.foot-bottom a:hover{color:var(--primary)}

/* ===== modal ===== */
.modal{position:fixed;inset:0;display:grid;place-items:center;background:rgba(15,23,42,.5);z-index:100;padding:20px}
.modal[hidden]{display:none}
.modal-card{background:#fff;border-radius:18px;padding:28px;max-width:420px;width:100%;position:relative}
.modal-close{position:absolute;right:16px;top:14px;background:none;border:none;font-size:28px;cursor:pointer;color:var(--muted)}
.modal-card h3{margin-bottom:12px;font-size:20px}
.modal-card p{color:var(--muted);font-size:14.5px;line-height:1.7}

/* ===== reveal anim on scroll ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}