:root{
  --blue:#1559D6; --blue-dark:#0E47B5; --blue-soft:#EAF1FD;
  --ink:#0F172A; --muted:#475569; --line:#E2E8F0; --bg:#FFFFFF; --bg-alt:#F6F8FC;
  --radius:16px; --wrap:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.65 "Be Vietnam Pro",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2rem,5vw,3.4rem);font-weight:800}
h2{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:800}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
section{padding:80px 0;scroll-margin-top:68px}
@media (max-width:760px){section{padding:56px 0}}
.alt{background:var(--bg-alt)}
.eyebrow{display:inline-block;font-weight:600;font-size:.85rem;color:var(--blue);background:var(--blue-soft);padding:4px 12px;border-radius:99px;margin-bottom:16px}
.lead{font-size:1.15rem;color:var(--muted);max-width:640px}
.center{text-align:center}.center .lead{margin-inline:auto}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;text-decoration:none;padding:14px 24px;border-radius:12px;transition:background .15s,transform .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue-dark)}
.btn-ghost{background:#fff;color:var(--blue);box-shadow:inset 0 0 0 2px var(--blue)}
.btns{display:flex;flex-wrap:wrap;gap:12px}

/* header */
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;text-decoration:none}
.brand svg{width:36px;height:36px;border-radius:9px}
.menu{display:flex;gap:28px;font-weight:500;font-size:.95rem}
.menu a{text-decoration:none;color:var(--muted)}.menu a:hover{color:var(--blue)}
.nav .btn{padding:10px 18px;font-size:.95rem}
@media (max-width:860px){.menu{display:none}}

/* hero */
.hero{padding:72px 0 88px;background:linear-gradient(180deg,var(--blue-soft),#fff)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1 span{color:var(--blue)}
.ticks{list-style:none;padding:0;margin:24px 0 32px;display:grid;gap:10px}
.ticks li{display:flex;gap:10px;align-items:flex-start}
.ticks li::before{content:"";flex:none;width:22px;height:22px;margin-top:3px;border-radius:50%;background:var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L19 7'/%3E%3C/svg%3E") center/14px no-repeat}
.mock{background:#fff;border-radius:20px;box-shadow:0 30px 60px -20px rgba(21,89,214,.35),0 0 0 1px var(--line);overflow:hidden}
.mock-bar{display:flex;gap:6px;padding:12px 14px;border-bottom:1px solid var(--line)}
.mock-bar i{width:10px;height:10px;border-radius:50%;background:#CBD5E1}
.mock-body{padding:22px}
.mock-hero{height:120px;border-radius:12px;background:linear-gradient(135deg,#F9D9CF,#F3E7E1 60%,#E8D5F0);display:flex;align-items:flex-end;padding:14px;font-weight:700;color:#7C2D12}
.mock-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0}
.mock-row div{height:64px;border-radius:10px;background:var(--bg-alt)}
.mock-cta{display:flex;gap:10px}
.mock-cta span{flex:1;height:38px;border-radius:10px;background:var(--blue)}
.mock-cta span+span{background:#0068FF}
.mock-note{font-size:.8rem;color:var(--muted);text-align:center;margin:10px 0 0}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}.hero{padding:48px 0 64px}}

/* cards */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
@media (max-width:860px){.grid3{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card p{color:var(--muted);margin:0}
.ico{width:48px;height:48px;border-radius:12px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;margin-bottom:16px}
.ico svg{width:24px;height:24px}

/* demo cards */
.demo-card{display:block;text-decoration:none;padding:0;overflow:hidden;transition:transform .15s,box-shadow .15s}
.demo-card:hover{transform:translateY(-3px);box-shadow:0 20px 40px -24px rgba(15,23,42,.35)}
.demo-card img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
.demo-card h3{margin:20px 24px 4px}.demo-card p{margin:0 24px}
.demo-card .more{display:block;margin:14px 24px 22px;color:var(--blue);font-weight:700}

/* pricing */
.price{position:relative;display:flex;flex-direction:column}
.price.hot{border:2px solid var(--blue);box-shadow:0 20px 40px -20px rgba(21,89,214,.4)}
.badge{position:absolute;top:-13px;left:28px;background:var(--blue);color:#fff;font-size:.8rem;font-weight:700;padding:3px 12px;border-radius:99px}
.amount{font-size:2rem;font-weight:800;margin:4px 0 2px}
.amount small{font-size:1rem;font-weight:500;color:var(--muted)}
.price ul{list-style:none;padding:0;margin:18px 0 24px;display:grid;gap:8px;color:var(--ink);font-size:.97rem}
.price li{padding-left:26px;position:relative}
.price li::before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:800}
.price .btn{margin-top:auto}
.note{margin-top:24px;color:var(--muted);font-size:.95rem;text-align:center}
.offer{margin-top:32px;background:var(--blue);color:#fff;border-radius:var(--radius);padding:24px 28px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.offer p{margin:0;font-weight:600}
.offer .btn{background:#fff;color:var(--blue)}

/* steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
@media (max-width:860px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}
.step{counter-increment:s}
.step::before{content:counter(s);display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;margin-bottom:14px}
.step p{color:var(--muted)}

/* faq */
.faq{max-width:780px;margin:40px auto 0}
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--blue);font-weight:800;font-size:1.3rem;line-height:1}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin:12px 0 0}

/* contact */
.contact{background:var(--ink);color:#fff}
.contact .lead{color:#CBD5E1}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:32px}
@media (max-width:760px){.contact-grid{grid-template-columns:1fr}}
.contact-card{display:block;text-decoration:none;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:22px}
.contact-card:hover{background:rgba(255,255,255,.1)}
.contact-card span{display:block;color:#94A3B8;font-size:.9rem}
.contact-card strong{font-size:1.15rem}
footer{background:var(--ink);color:#94A3B8;font-size:.9rem;padding:24px 0 96px;border-top:1px solid rgba(255,255,255,.08)}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between}
@media (min-width:761px){footer{padding-bottom:24px}}

/* mobile action bar */
.mbar{position:fixed;inset:auto 0 0 0;z-index:30;display:none;gap:10px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line)}
.mbar .btn{flex:1;padding:12px}
@media (max-width:760px){.mbar{display:flex}}