@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@600;700;800&display=swap');

:root{
  --bg:#030706;
  --bg2:#07110f;
  --panel:rgba(255,255,255,.045);
  --panel2:rgba(56,189,248,.055);
  --line:rgba(125,255,183,.14);
  --line2:rgba(56,189,248,.18);
  --text:#f4fff8;
  --muted:rgba(244,255,248,.68);
  --soft:rgba(244,255,248,.44);
  --green:#8cff3f;
  --cyan:#38bdf8;
  --amber:#fbbf24;
  --red:#fb7185;
  --radius:14px;
  --max:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.65;overflow-x:hidden;padding-bottom:74px}
body:before{content:"";position:fixed;inset:0;z-index:-2;background:
  linear-gradient(rgba(140,255,63,.055) 1px,transparent 1px),
  linear-gradient(90deg,rgba(56,189,248,.045) 1px,transparent 1px);
  background-size:42px 42px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.92),rgba(0,0,0,.35));}
body:after{content:"";position:fixed;inset:0;z-index:-1;background:
  radial-gradient(circle at 12% 8%,rgba(140,255,63,.16),transparent 34%),
  radial-gradient(circle at 85% 18%,rgba(56,189,248,.12),transparent 30%),
  radial-gradient(circle at 55% 70%,rgba(251,191,36,.06),transparent 34%),
  linear-gradient(180deg,transparent,#030706 75%);}
a{color:inherit}
img{max-width:100%;display:block}
.topbar{position:sticky;top:0;z-index:50;background:rgba(3,7,6,.82);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{max-width:var(--max);margin:auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{font-family:"JetBrains Mono",monospace;font-weight:800;color:var(--green);letter-spacing:.04em}
.brand-logo{height:35px;width:auto;object-fit:contain}
.navlinks{display:flex;gap:18px;color:var(--muted);font-size:.9rem;font-weight:700}
.navlinks a{text-decoration:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid rgba(140,255,63,.35);background:linear-gradient(135deg,var(--green),#d9ff86);color:#061006;border-radius:10px;padding:13px 22px;font-weight:900;text-decoration:none;box-shadow:0 0 28px rgba(140,255,63,.18);cursor:pointer}
.btn.secondary{background:rgba(255,255,255,.035);color:var(--text);border-color:var(--line);box-shadow:none}
.container{max-width:var(--max);margin:auto;padding:0 20px}
.hero{min-height:auto;display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;padding:54px 0 78px}
.eyebrow{font-family:"JetBrains Mono",monospace;color:var(--green);letter-spacing:.12em;text-transform:uppercase;font-size:.78rem;font-weight:800;margin-bottom:18px}
h1{font-size:clamp(2.15rem,4.45vw,4.55rem);line-height:1;letter-spacing:-.05em;font-weight:900;margin-bottom:22px}
h1 span{color:var(--green)}
.hero h2{font-size:clamp(1.08rem,1.72vw,1.42rem);line-height:1.34;color:#dfffe8;margin-bottom:18px}
.lead{font-size:1.05rem;color:var(--muted);max-width:720px;margin-bottom:28px}
.text-highlight{color:var(--green);font-weight:900}
.proofline{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;color:var(--muted);font-size:.9rem}
.chip{border:1px solid var(--line);background:rgba(140,255,63,.055);border-radius:999px;padding:7px 11px}
.hero-visual{display:grid;gap:16px}
.mobile-hero-visual{display:none}
.hero-photo-wrap{position:relative;min-height:430px;border:1px solid rgba(140,255,63,.2);border-radius:24px;overflow:hidden;background:#07110f;box-shadow:0 30px 110px rgba(0,0,0,.5)}
.hero-photo{width:100%;height:430px;object-fit:cover;filter:saturate(1.15) contrast(1.04);opacity:.86}
.hero-photo-shade{position:absolute;inset:0;background:linear-gradient(120deg,rgba(3,7,6,.88),rgba(3,7,6,.25) 48%,rgba(3,7,6,.72)),radial-gradient(circle at 72% 28%,rgba(56,189,248,.28),transparent 34%),radial-gradient(circle at 18% 70%,rgba(140,255,63,.22),transparent 36%)}
.system-card{position:absolute;z-index:2;width:min(230px,44%);border:1px solid rgba(244,255,248,.16);background:rgba(3,7,6,.74);backdrop-filter:blur(14px);border-radius:14px;padding:14px;box-shadow:0 20px 50px rgba(0,0,0,.34)}
.system-card strong{display:block;color:#fff;font-size:1rem;line-height:1.1;margin-bottom:5px}
.system-card span{display:block;color:var(--muted);font-size:.82rem;line-height:1.4}
.system-card.top{top:22px;left:22px}.system-card.mid{right:20px;top:44%}.system-card.bottom{left:34px;bottom:24px;border-color:rgba(140,255,63,.34)}
.terminal{border:1px solid var(--line2);background:linear-gradient(180deg,rgba(10,20,18,.92),rgba(4,9,8,.94));border-radius:18px;box-shadow:0 28px 90px rgba(0,0,0,.46);overflow:hidden}
.terminal.compact{box-shadow:0 18px 60px rgba(0,0,0,.32);border-color:rgba(56,189,248,.22)}
.terminal-head{display:flex;gap:7px;padding:14px;border-bottom:1px solid var(--line)}
.dot{width:10px;height:10px;border-radius:50%;background:var(--red)}.dot:nth-child(2){background:var(--amber)}.dot:nth-child(3){background:var(--green)}
.terminal-body{padding:26px;font-family:"JetBrains Mono",monospace;font-size:.92rem;color:#c9ffe0}
.terminal-body p{margin:0 0 12px}.prompt{color:var(--green)}.cyan{color:var(--cyan)}.amber{color:var(--amber)}
.visual-strip{padding:0 0 72px}
.visual-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.visual-tile{position:relative;min-height:255px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#07110f;box-shadow:0 20px 70px rgba(0,0,0,.28)}
.visual-tile img{width:100%;height:255px;object-fit:cover;filter:saturate(1.08) contrast(1.02);opacity:.8;transition:transform .45s ease,opacity .45s ease}
.visual-tile:hover img{transform:scale(1.045);opacity:.96}
.visual-tile:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,6,.06),rgba(3,7,6,.82))}
.visual-tile div{position:absolute;left:18px;right:18px;bottom:18px;z-index:2}
.visual-tile strong{display:block;font-size:1.35rem;line-height:1;color:#fff;margin-bottom:8px}
.visual-tile span{display:block;color:rgba(244,255,248,.76);font-weight:600;line-height:1.45}
.section{padding:86px 0;border-top:1px solid rgba(255,255,255,.055)}
.section.alt{background:rgba(255,255,255,.018)}
.section h2{font-size:clamp(1.85rem,3.5vw,3.25rem);line-height:1.05;letter-spacing:-.04em;margin-bottom:18px}
.section-intro{color:var(--muted);font-size:1.05rem;max-width:760px;margin-bottom:30px}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);padding:24px}
.card h3{font-size:1.08rem;margin-bottom:10px;color:#fff}
.card p,.card li{color:var(--muted);font-size:.96rem}
.card ul{list-style:none;display:grid;gap:8px;margin-top:12px}
.bad h3{color:var(--red)}.good h3{color:var(--green)}
.callout{border-left:4px solid var(--green);background:rgba(140,255,63,.06);padding:22px;border-radius:0 var(--radius) var(--radius) 0;color:#dfffe8;margin-top:24px}
.cycle{font-family:"JetBrains Mono",monospace;border:1px solid var(--line2);border-radius:18px;padding:24px;background:rgba(56,189,248,.045);color:#dff7ff}
.showcase{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:stretch;margin:4px 0 28px}
.showcase-media{position:relative;border:1px solid var(--line2);border-radius:20px;overflow:hidden;min-height:340px;background:#07110f}
.showcase-media img{width:100%;height:100%;min-height:340px;object-fit:cover;opacity:.78;filter:saturate(1.12)}
.showcase-media:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,6,.08),rgba(3,7,6,.76))}
.showcase-label{position:absolute;left:22px;right:22px;bottom:22px;z-index:2;border:1px solid rgba(140,255,63,.28);background:rgba(3,7,6,.72);backdrop-filter:blur(14px);border-radius:14px;padding:16px;color:#fff;font-weight:900}
.metric-stack{display:grid;gap:12px}
.metric-stack div{border:1px solid var(--line);background:rgba(255,255,255,.045);border-radius:16px;padding:20px}
.metric-stack strong{display:block;font-family:"JetBrains Mono",monospace;color:var(--green);font-size:1.55rem;line-height:1;margin-bottom:10px}
.metric-stack span{display:block;color:var(--muted);font-weight:650;line-height:1.5}
.timeline{position:relative;display:grid;gap:14px;margin-top:30px}
.timeline:before{content:"";position:absolute;left:25px;top:12px;bottom:12px;width:2px;background:linear-gradient(var(--green),var(--cyan))}
.step{position:relative;display:grid;grid-template-columns:54px 1fr;gap:18px}
.num{width:52px;height:52px;border-radius:14px;background:#0d2019;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:"JetBrains Mono";font-weight:900;color:var(--green);z-index:2}
.step-content{border:1px solid var(--line);background:rgba(255,255,255,.04);border-radius:14px;padding:20px}
.step-content small{color:var(--cyan);font-weight:800;text-transform:uppercase;letter-spacing:.08em}
.step-content h3{margin:6px 0 8px}
.pricing{display:grid;grid-template-columns:1fr 1.05fr;gap:18px;align-items:stretch}
.price-card{border:1px solid var(--line);background:rgba(255,255,255,.04);border-radius:18px;padding:28px;position:relative}
.price-card.featured{border-color:rgba(140,255,63,.5);box-shadow:0 0 50px rgba(140,255,63,.11)}
.price-roadmap{position:relative;display:grid;gap:14px;margin:10px 0 32px}
.price-ladder{grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);grid-template-rows:repeat(2,minmax(0,1fr));align-items:stretch}
.price-step{position:relative;border:1px solid rgba(244,255,248,.12);background:linear-gradient(145deg,rgba(255,255,255,.065),rgba(255,255,255,.026));border-radius:22px;padding:22px 24px;overflow:hidden;box-shadow:0 18px 60px rgba(0,0,0,.18)}
.price-step:after{content:"";position:absolute;right:-24%;bottom:-42%;width:58%;height:170px;background:radial-gradient(circle,rgba(56,189,248,.15),transparent 64%);pointer-events:none}
.price-step:not(:last-child):before{display:none}
.step-kicker{position:relative;z-index:2;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.step-index{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;background:rgba(56,189,248,.09);border:1px solid rgba(56,189,248,.22);color:var(--cyan);font-family:"JetBrains Mono",monospace;font-weight:900;font-size:.78rem;box-shadow:inset 0 0 18px rgba(56,189,248,.06)}
.price-step small{display:block;color:var(--cyan);font-weight:900;text-transform:uppercase;letter-spacing:.08em;font-size:.74rem}
.price-step strong{position:relative;z-index:2;display:block;margin:0 0 10px;color:var(--green);font-size:2.16rem;line-height:.95;font-weight:900;letter-spacing:-.035em}
.price-step span{position:relative;z-index:2;display:block;color:#dfffe8;font-weight:900;font-size:1rem;line-height:1.35}
.price-step em{position:relative;z-index:2;display:block;color:rgba(244,255,248,.72);font-style:normal;font-weight:750;font-size:.9rem;line-height:1.45;margin-top:8px}
.price-ladder .price-step.active{grid-row:1 / span 2;min-height:260px;padding:30px;border-color:rgba(140,255,63,.66);background:linear-gradient(145deg,rgba(140,255,63,.2),rgba(56,189,248,.055) 56%,rgba(255,255,255,.035));box-shadow:0 0 0 1px rgba(140,255,63,.18) inset,0 28px 90px rgba(140,255,63,.13)}
.price-ladder .price-step.active:before{content:"GIÁ HIỆN TẠI";position:absolute;right:18px;top:18px;background:var(--green);color:#061006;border-radius:999px;padding:6px 11px;font-size:.68rem;font-weight:950;letter-spacing:.04em;box-shadow:0 0 28px rgba(140,255,63,.34)}
.price-ladder .price-step.active:after{right:-18%;bottom:-28%;width:72%;height:250px;background:radial-gradient(circle,rgba(140,255,63,.2),transparent 62%)}
.price-ladder .price-step.active .step-index{background:var(--green);border-color:rgba(217,255,134,.92);color:#061006;box-shadow:0 0 0 8px rgba(140,255,63,.12),0 0 24px rgba(140,255,63,.42)}
.price-ladder .price-step.active strong{font-size:clamp(3rem,5.6vw,4.25rem);margin-top:18px}
.price-ladder .price-step.active span{font-size:1.18rem}
.price-ladder .price-step.active em{font-size:1rem;color:#f4fff8}
.price-ladder .price-step:not(.active){display:flex;flex-direction:column;justify-content:center;min-height:156px}
.badge{position:absolute;right:18px;top:-13px;background:var(--green);color:#061006;border-radius:999px;padding:6px 12px;font-size:.74rem;font-weight:900}
.price{font-size:2.65rem;line-height:1;font-weight:900;color:var(--green);margin:12px 0}.old{text-decoration:line-through;color:var(--soft);font-size:1rem}
.feature-list{list-style:none;display:grid;gap:10px;margin:18px 0}.feature-list li{color:var(--muted)}
.feature-list li:before{content:"+";color:var(--green);font-weight:900;margin-right:8px}
.checkout-form-wrap{max-width:720px;margin:36px auto 0;border:1px solid rgba(140,255,63,.35);background:linear-gradient(180deg,rgba(140,255,63,.07),rgba(255,255,255,.035));border-radius:20px;padding:28px}
.pkg-selector{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}
.pkg-card{border:1px solid var(--line);border-radius:14px;padding:18px;cursor:pointer;background:rgba(255,255,255,.035)}
.pkg-card.active{border-color:var(--green);box-shadow:0 0 28px rgba(140,255,63,.14)}
.pkg-name{font-weight:900}.pkg-price{font-size:1.5rem;color:var(--green);font-weight:900}
.form-grid{display:grid;gap:14px}.form-row label{display:block;color:var(--muted);font-size:.86rem;font-weight:700;margin-bottom:6px}
.form-row input{width:100%;border:1px solid var(--line);background:rgba(0,0,0,.28);border-radius:10px;padding:14px;color:#fff;font:inherit;outline:none}
.form-row input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(140,255,63,.09)}
.form-error{display:none;background:rgba(251,113,133,.12);border:1px solid rgba(251,113,133,.25);color:#fecdd3;border-radius:10px;padding:12px;font-weight:700}
.btn-checkout{width:100%;margin-top:6px;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;font-size:1rem;font-weight:900;letter-spacing:0;text-transform:none}
table{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:block}
tbody,thead{display:table;width:100%;table-layout:fixed}th,td{border-bottom:1px solid var(--line);padding:14px;text-align:left;color:var(--muted);font-size:.92rem}th{color:#fff;background:rgba(255,255,255,.045)}
.qr-modal-overlay{position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.74);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:18px}
.qr-modal{max-width:430px;width:100%;background:#07110f;border:1px solid var(--line);border-radius:20px;padding:26px;position:relative}
.qr-close{position:absolute;right:14px;top:10px;background:none;border:0;color:var(--muted);font-size:1.6rem;cursor:pointer}
.qr-title{text-align:center;font-size:1.05rem}.qr-pkg{text-align:center;color:var(--green);font-weight:800;margin:4px 0 16px}
.qr-img-wrap{background:#fff;border-radius:14px;padding:14px;text-align:center}.qr-img-wrap img{width:220px;max-width:100%}
.qr-details{margin-top:14px}.qr-detail-row{display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);padding:8px 0;font-size:.88rem}.qr-detail-row span{color:var(--soft)}.qr-detail-row strong{color:#fff;text-align:right}.qr-code{color:var(--green)!important;font-family:"JetBrains Mono";user-select:all}
.qr-status{margin-top:14px;background:rgba(140,255,63,.06);border:1px solid var(--line);border-radius:12px;padding:12px;display:flex;justify-content:center;gap:8px;color:var(--green);font-weight:800}.qr-spinner{width:18px;height:18px;border:2px solid rgba(140,255,63,.2);border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.faq details{border:1px solid var(--line);background:var(--panel);border-radius:12px;padding:16px}.faq summary{cursor:pointer;font-weight:900}.faq p{color:var(--muted);margin-top:10px}
.founder-block{display:grid;grid-template-columns:.82fr 1.18fr;gap:28px;align-items:start}
.founder-photo{position:sticky;top:98px;border:1px solid rgba(140,255,63,.24);border-radius:22px;overflow:hidden;background:rgba(255,255,255,.035);box-shadow:0 26px 90px rgba(0,0,0,.38)}
.founder-photo img{width:100%;aspect-ratio:1/1;object-fit:cover}
.founder-copy{border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.026));border-radius:22px;padding:30px}
.founder-copy p{color:var(--muted);margin-bottom:14px}
.founder-copy .section-intro{margin-bottom:18px}
.founder-crash{display:grid;gap:8px;border-left:4px solid var(--red);background:rgba(251,113,133,.08);border-radius:0 14px 14px 0;padding:16px 18px;margin:16px 0;color:#fff}
.founder-crash span{color:#ffdce3;font-weight:750}
.founder-crash strong{color:#fff}
.founder-proof{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:18px 0}
.founder-proof span{border:1px solid rgba(140,255,63,.2);background:rgba(140,255,63,.055);border-radius:12px;padding:11px 12px;color:#eaffef;font-weight:800}
.founder-copy blockquote{border:1px solid rgba(251,191,36,.26);background:rgba(251,191,36,.07);border-radius:16px;padding:18px;color:#fff;font-size:1.08rem;font-weight:800;line-height:1.55;margin:18px 0}
.sticky{position:fixed;left:0;right:0;bottom:0;z-index:60;background:rgba(3,7,6,.92);backdrop-filter:blur(18px);border-top:1px solid var(--line);padding:11px 20px;display:flex;justify-content:center;align-items:center;gap:16px;transform:translateY(115%);opacity:0;pointer-events:none;transition:transform .24s ease,opacity .24s ease}.sticky.show{transform:translateY(0);opacity:1;pointer-events:auto}.sticky strong{color:var(--green)}
footer{padding:34px;text-align:center;color:var(--soft);font-size:.85rem}
@media(max-width:860px){body{padding-bottom:88px}.topbar{background:rgba(3,7,6,.9)}.nav{padding:8px 20px;gap:10px}.brand{font-size:.84rem;letter-spacing:.025em}.nav>.btn{padding:9px 14px;border-radius:9px;font-size:.82rem;min-height:38px;box-shadow:0 0 18px rgba(140,255,63,.14)}.navlinks{display:none}.container.hero{padding:36px 20px 50px}.hero{grid-template-columns:1fr;min-height:auto;overflow:hidden;gap:28px}.hero>.hero-visual{display:none}.mobile-hero-visual{display:block;margin:18px 0 20px}h1{font-size:1.88rem;line-height:1.06;letter-spacing:-.028em;max-width:100%;overflow-wrap:break-word}.hero h2{font-size:1.06rem;line-height:1.36}.hero-photo-wrap{min-height:auto;border-radius:18px}.hero-photo{height:300px}.system-card{position:relative;width:auto;left:auto!important;right:auto!important;top:auto!important;bottom:auto!important;margin:10px}.terminal.compact{display:none}.visual-strip{padding:0 0 54px}.visual-grid,.showcase,.founder-block,.price-roadmap,.price-ladder{grid-template-columns:1fr;grid-template-rows:auto}.price-roadmap{gap:12px}.price-ladder .price-step.active{grid-row:auto;min-height:auto;padding:22px 18px 20px}.price-ladder .price-step.active:before{right:12px;top:12px;font-size:.62rem;padding:5px 9px}.price-step{padding:18px}.price-step:not(:last-child):before{display:none}.price-step strong,.price-ladder .price-step.active strong{font-size:1.95rem;margin-top:0}.price-ladder .price-step.active span{font-size:1rem}.price-ladder .price-step.active em{font-size:.9rem}.price-ladder .price-step:not(.active){min-height:auto}.visual-tile,.visual-tile img{min-height:220px;height:220px}.showcase-media,.showcase-media img{min-height:260px}.founder-photo{position:relative;top:auto;max-width:320px}.founder-copy{padding:22px}.founder-proof{grid-template-columns:1fr}.grid.cols-2,.grid.cols-3,.grid.cols-4,.pricing{grid-template-columns:1fr}.pkg-selector{grid-template-columns:1fr}.sticky{padding:8px 14px;gap:6px;min-height:72px;flex-direction:column}.sticky span{font-size:.88rem;line-height:1.2;text-align:center}.sticky .btn{width:100%;max-width:320px;min-height:38px;padding:8px 14px;border-radius:9px;font-size:.86rem;box-shadow:0 0 18px rgba(140,255,63,.14)}.section{padding:58px 0}.terminal-body{font-size:.8rem;padding:18px}table{overflow-x:auto}.hero .btn{width:100%;margin-bottom:10px}}