:root{
  --bg:#0b1020; --bg2:#111830; --card:#151d38; --line:#26304f;
  --txt:#e8ecf6; --mut:#9aa6c7; --acc:#5b8cff; --acc2:#7bf1c8; --accd:#3a6bff;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--txt);line-height:1.6}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.wrap.narrow{max-width:720px}
a{color:inherit;text-decoration:none}

/* nav */
.nav{position:sticky;top:0;z-index:10;background:rgba(11,16,32,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;font-size:22px;letter-spacing:-.5px}
.logo span{color:var(--acc2)}
.nav nav{display:flex;align-items:center;gap:22px}
.nav nav a{color:var(--mut);font-size:15px}
.nav nav a:hover{color:var(--txt)}

/* buttons */
.btn{display:inline-block;background:linear-gradient(135deg,var(--acc),var(--accd));color:#fff;border:0;padding:12px 20px;border-radius:12px;font-weight:600;font-size:15px;cursor:pointer;transition:.15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(91,140,255,.35)}
.btn-lg{padding:15px 28px;font-size:16px}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-ghost{background:transparent;border:1px solid var(--line);box-shadow:none}
.btn-ghost:hover{border-color:var(--acc);box-shadow:none}

/* hero */
.hero{padding:90px 0 70px;background:radial-gradient(1200px 500px at 70% -10%,rgba(91,140,255,.25),transparent),var(--bg)}
.badge{display:inline-block;background:var(--card);border:1px solid var(--line);color:var(--acc2);padding:6px 14px;border-radius:999px;font-size:13px;margin-bottom:22px}
.hero h1{font-size:clamp(34px,6vw,60px);line-height:1.05;margin:0 0 18px;font-weight:800;letter-spacing:-1.5px}
.hero h1 span{background:linear-gradient(120deg,var(--acc),var(--acc2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:19px;color:var(--mut);max-width:640px;margin:0 0 30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;margin-top:50px;flex-wrap:wrap}
.hero-stats b{display:block;font-size:26px;color:var(--acc2)}
.hero-stats span{color:var(--mut);font-size:14px}

/* sections */
.section{padding:70px 0}
.section-alt{background:var(--bg2)}
.h2{font-size:clamp(26px,4vw,38px);font-weight:800;letter-spacing:-.5px;margin:0 0 10px;text-align:center}
.sub{text-align:center;color:var(--mut);margin:0 auto 34px;max-width:560px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px}
.card .ico{font-size:34px;margin-bottom:12px}
.card h3{margin:0 0 8px;font-size:20px}
.card p{color:var(--mut);margin:0;font-size:15px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px}
.step{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;text-align:center}
.step span{display:inline-flex;width:40px;height:40px;align-items:center;justify-content:center;border-radius:50%;background:linear-gradient(135deg,var(--acc),var(--accd));font-weight:700;margin-bottom:10px}
.step h4{margin:0 0 6px}
.step p{color:var(--mut);font-size:14px;margin:0}

/* forms */
.order-form{display:flex;flex-direction:column;gap:12px;background:var(--card);border:1px solid var(--line);padding:24px;border-radius:18px}
.order-form input,.order-form select{background:var(--bg);border:1px solid var(--line);color:var(--txt);padding:13px 15px;border-radius:11px;font-size:15px;width:100%}
.order-form input:focus,.order-form select:focus{outline:none;border-color:var(--acc)}
.order-form .row{display:flex;gap:12px}
.order-form .row>*{flex:1}
.status{margin-top:16px;padding:16px 18px;border-radius:12px;background:var(--card);border:1px solid var(--line);color:var(--mut)}
.status.hidden{display:none}
.status.ok{border-color:var(--acc2);color:var(--acc2)}
.status.err{border-color:#ff6b6b;color:#ff9b9b}
.status a{color:var(--acc2);font-weight:600}
.spin{display:inline-block;width:14px;height:14px;border:2px solid var(--line);border-top-color:var(--acc2);border-radius:50%;animation:s .8s linear infinite;vertical-align:-2px;margin-right:8px}
@keyframes s{to{transform:rotate(360deg)}}

/* pricing */
.card.price{display:flex;flex-direction:column;position:relative}
.card.price .amt{font-size:30px;font-weight:800;color:var(--acc2);margin:6px 0 2px}
.card.price .muted{color:var(--mut);font-size:13px;margin:0 0 14px}
.card.price ul{list-style:none;padding:0;margin:0 0 20px;flex:1}
.card.price ul li{padding:7px 0 7px 26px;position:relative;color:var(--txt);font-size:14px;border-top:1px solid var(--line)}
.card.price ul li:first-child{border-top:0}
.card.price ul li::before{content:"✓";position:absolute;left:0;color:var(--acc2);font-weight:700}
.card.price .btn{text-align:center}
.card.price.featured{border-color:var(--acc);box-shadow:0 10px 40px rgba(91,140,255,.18)}
.card.price .tag{position:absolute;top:-12px;right:18px;background:linear-gradient(135deg,var(--acc),var(--accd));color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px}

/* footer */
.footer{border-top:1px solid var(--line);padding:40px 0;text-align:center;color:var(--mut)}
.footer .logo{font-size:20px}
.footer p{margin:8px 0 0;font-size:14px}

/* article page */
.article-body{background:#fff;color:#1a2233}
.article-wrap{max-width:760px;margin:0 auto;padding:40px 20px}
.article-wrap .back{color:var(--accd);font-size:14px}
.article-wrap h1{font-size:34px;line-height:1.15;margin:18px 0 22px}
.article-wrap h2{font-size:25px;margin:34px 0 12px}
.article-wrap h3{font-size:20px;margin:24px 0 10px}
.article-wrap p{margin:0 0 16px}
.article-wrap ul,.article-wrap ol{margin:0 0 16px 22px}
.faq{margin-top:40px;border-top:2px solid #eef;padding-top:20px}
.faq-item h3{font-size:18px}
.lsi{margin-top:26px;color:#667;font-size:14px}
.meta-box{margin-top:36px;background:#f4f7ff;border:1px solid #e0e8ff;border-radius:12px;padding:18px;font-size:14px;color:#445}
.meta-box h4{margin:0 0 8px}
.meta-box p{margin:4px 0}

@media(max-width:820px){
  .cards,.steps{grid-template-columns:1fr 1fr}
  .nav nav a:not(.btn){display:none}
}
@media(max-width:520px){
  .cards,.steps,.order-form .row{grid-template-columns:1fr;flex-direction:column}
}