:root{--bg:#040a18;--bg2:#08132b;--card:rgba(255,255,255,.05);--line:rgba(120,170,255,.18);--blue:#1e8cff;--cyan:#2ee6ff;--text:#e9f1ff;--mut:#9fb3d6;--r:20px;color-scheme:dark}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;overflow-x:hidden;background-image:radial-gradient(900px 500px at 85% -5%,rgba(30,140,255,.18),transparent),radial-gradient(700px 500px at -10% 40%,rgba(46,230,255,.08),transparent)}
img,video{max-width:100%;display:block}a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:'Sora','Inter',system-ui,sans-serif;line-height:1.15;letter-spacing:-.02em}
.wrap{width:min(1180px,92%);margin:auto}.sec{padding:84px 0}.alt{background:linear-gradient(180deg,var(--bg2),var(--bg))}
.eyebrow{color:var(--cyan);font-size:.78rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase}
.sec h2{font-size:clamp(1.8rem,4vw,2.8rem);margin:10px 0 14px}.lead{color:var(--mut);max-width:680px;font-size:1.05rem}.center{text-align:center}.center .lead{margin:auto}
.grad{background:linear-gradient(90deg,#fff,var(--cyan) 60%,var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:700;border:1px solid transparent;cursor:pointer;font:inherit;font-weight:700;transition:.25s}
.btn.p{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#021024;box-shadow:0 10px 30px rgba(30,140,255,.4)}.btn.p:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(46,230,255,.45)}
.btn.g{border-color:var(--line);background:rgba(255,255,255,.06);color:var(--text);backdrop-filter:blur(8px)}.btn.g:hover{border-color:var(--cyan);transform:translateY(-3px)}
.btn.w{background:#25d366;color:#04230f}
/* header */
header{position:sticky;top:0;z-index:100;background:rgba(4,10,24,.78);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;font-family:Sora,sans-serif;font-weight:800;letter-spacing:.02em}
.brand img{width:48px;height:48px;border-radius:50%;object-fit:cover;box-shadow:0 0 0 2px var(--blue),0 0 24px rgba(30,140,255,.6)}
.brand small{display:block;font-size:.62rem;color:var(--cyan);font-weight:600;letter-spacing:.14em}
nav ul{display:flex;list-style:none;gap:4px;align-items:center}nav li{position:relative}
nav a.l,nav .dd>span{display:block;padding:10px 13px;border-radius:10px;font-size:.92rem;font-weight:600;color:var(--mut);cursor:pointer}
nav a.l:hover,nav a.l.on,nav .dd:hover>span{color:#fff;background:rgba(255,255,255,.07)}
.dd .menu{position:absolute;top:100%;left:0;min-width:210px;background:#0a1630;border:1px solid var(--line);border-radius:14px;padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s}
.dd:hover .menu,.dd:focus-within .menu{opacity:1;visibility:visible;transform:none}.menu a{display:block;padding:9px 12px;border-radius:9px;font-size:.9rem;color:var(--mut)}.menu a:hover{background:rgba(30,140,255,.18);color:#fff}
.burger{display:none;background:none;border:1px solid var(--line);color:#fff;width:44px;height:44px;border-radius:12px;font-size:1.3rem}
/* hero slider (3D) */
.hero{position:relative;height:calc(100vh - 74px);min-height:600px;max-height:860px;perspective:1600px;overflow:hidden;background:#000}
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transform:rotateY(22deg) scale(1.12) translateZ(-120px);transform-origin:70% 50%;transition:transform 1.4s cubic-bezier(.2,.7,.2,1),opacity 1.2s,visibility 1.2s}
.slide.on{opacity:1;visibility:visible;transform:none}.slide.out{transform:rotateY(-22deg) scale(1.1) translateZ(-120px);transform-origin:30% 50%}
.slide video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.slide:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,10,24,.92) 8%,rgba(4,10,24,.45) 55%,rgba(4,10,24,.15)),linear-gradient(0deg,var(--bg),transparent 30%)}
.slide .c{position:absolute;z-index:2;inset:0;display:flex;flex-direction:column;justify-content:center;width:min(1180px,92%);margin:auto}
.slide .c>*{opacity:0;transform:translateY(34px);transition:.9s cubic-bezier(.2,.7,.2,1)}.slide.on .c>*{opacity:1;transform:none}
.slide.on .c>*:nth-child(2){transition-delay:.25s}.slide.on .c>*:nth-child(3){transition-delay:.45s}.slide.on .c>*:nth-child(4){transition-delay:.65s}
.slide h1{font-size:clamp(2.3rem,6vw,4.8rem);max-width:760px;margin:14px 0 18px}.slide p{max-width:560px;color:#cfdcf5;font-size:1.12rem;margin-bottom:28px}
.badge{display:inline-flex;gap:8px;align-items:center;width:max-content;padding:7px 14px;border:1px solid var(--line);border-radius:999px;background:rgba(30,140,255,.14);color:var(--cyan);font-size:.78rem;font-weight:700;letter-spacing:.1em}
.badge:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);animation:pulse 1.6s infinite}
@keyframes pulse{50%{opacity:.3}}
.ctl{position:absolute;z-index:5;bottom:34px;left:0;right:0;display:flex;justify-content:space-between;align-items:center;width:min(1180px,92%);margin:auto}
.dots{display:flex;gap:10px}.dots button{width:46px;height:5px;border-radius:9px;border:0;background:rgba(255,255,255,.25);cursor:pointer;overflow:hidden;position:relative}
.dots button.on:after{content:"";position:absolute;inset:0;background:var(--cyan);transform-origin:left;animation:fill 6.5s linear}@keyframes fill{from{transform:scaleX(0)}}
.arr{display:flex;gap:10px}.arr button{width:50px;height:50px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.08);color:#fff;font-size:1.2rem;cursor:pointer;backdrop-filter:blur(8px);transition:.25s}.arr button:hover{background:var(--blue);transform:scale(1.1)}
.hlogo{position:absolute;z-index:4;right:7%;top:50%;width:min(340px,28vw);transform:translateY(-50%);transform-style:preserve-3d;animation:float 6s ease-in-out infinite}
.hlogo img{border-radius:50%;box-shadow:0 30px 80px rgba(30,140,255,.55),0 0 0 6px rgba(255,255,255,.08)}
@keyframes float{50%{transform:translateY(-54%) rotateY(14deg)}}
/* trust strip */
.strip{margin-top:-46px;position:relative;z-index:6}.strip .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{padding:22px;border-radius:var(--r);background:rgba(10,22,48,.9);border:1px solid var(--line);backdrop-filter:blur(12px);text-align:center}
.stat b{display:block;font:800 2rem Sora,sans-serif;color:var(--cyan)}.stat span{color:var(--mut);font-size:.86rem}
/* coverflow 3D packages */
.cf{position:relative;height:560px;perspective:1500px;margin-top:30px;touch-action:pan-y}
.cf-item{position:absolute;left:50%;top:50%;width:300px;transition:transform .7s cubic-bezier(.2,.7,.2,1),opacity .5s;cursor:pointer}
.cfnav{display:flex;justify-content:center;gap:12px;margin-top:6px}.cfnav button{width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:var(--card);color:#fff;font-size:1.2rem;cursor:pointer}.cfnav button:hover{background:var(--blue)}
.pkg{position:relative;padding:28px 24px;border-radius:24px;background:linear-gradient(160deg,rgba(24,52,104,.95),rgba(8,19,43,.97));border:1px solid var(--line);box-shadow:0 30px 60px rgba(0,0,0,.45);overflow:hidden;height:100%;display:flex;flex-direction:column}
.pkg:before{content:"";position:absolute;inset:0;background:radial-gradient(300px 160px at 80% -10%,rgba(46,230,255,.25),transparent);pointer-events:none}
.pkg.hot,.on>.pkg{border-color:var(--cyan)}.tag{position:absolute;top:16px;right:16px;font-size:.68rem;font-weight:800;padding:5px 10px;border-radius:99px;background:linear-gradient(90deg,var(--blue),var(--cyan));color:#021024;letter-spacing:.08em}
.pkg h3{font-size:1.25rem;color:var(--cyan)}.pkg .sp{font:800 3rem Sora,sans-serif;margin:8px 0 0;line-height:1}.pkg .sp small{font-size:1rem;color:var(--mut)}
.pkg .pr{font-size:1.2rem;font-weight:700;margin:6px 0 14px}.pkg .pr small{color:var(--mut);font-weight:500}
.pkg ul{list-style:none;margin:0 0 20px;flex:1}.pkg li{padding:5px 0 5px 24px;position:relative;color:#cdd9f2;font-size:.92rem}.pkg li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:800}
.pkg .btn{justify-content:center;width:100%}
/* ring 3D */
.stage{height:440px;perspective:1300px;margin-top:30px;overflow:hidden}.ring{position:relative;width:100%;height:100%;transform-style:preserve-3d;animation:spin 36s linear infinite}.stage:hover .ring{animation-play-state:paused}
@keyframes spin{to{transform:rotateY(-360deg)}}
.rc{position:absolute;left:50%;top:50%;width:230px;height:300px;margin:-150px 0 0 -115px;transform:rotateY(calc(var(--i)*60deg)) translateZ(380px);border-radius:22px;overflow:hidden;border:1px solid var(--line);background:#0a1630;box-shadow:0 20px 50px rgba(0,0,0,.5)}
.rc img{width:100%;height:150px;object-fit:cover}.rc div{padding:16px}.rc h4{font-size:1.05rem;color:var(--cyan);margin-bottom:6px}.rc p{font-size:.85rem;color:var(--mut);line-height:1.5}
/* cards */
.grid{display:grid;gap:22px;margin-top:40px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{padding:28px;border-radius:var(--r);background:var(--card);border:1px solid var(--line);transition:.3s;transform-style:preserve-3d}.card:hover{border-color:var(--cyan);background:rgba(30,140,255,.1)}
.card .ic{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;font-size:1.6rem;background:linear-gradient(135deg,rgba(30,140,255,.35),rgba(46,230,255,.18));margin-bottom:16px}
.card h3{font-size:1.2rem;margin-bottom:8px}.card p{color:var(--mut);font-size:.95rem}.card ul{list-style:none;margin-top:12px}.card li{color:#c5d4f1;font-size:.9rem;padding:3px 0 3px 20px;position:relative}.card li:before{content:"›";position:absolute;left:4px;color:var(--cyan);font-weight:800}
.pic{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);position:relative;box-shadow:0 24px 60px rgba(0,0,0,.45)}.pic img{width:100%;height:100%;object-fit:cover;transition:transform .8s}.pic:hover img{transform:scale(1.08)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}.split .pic{aspect-ratio:4/3}
.steps{counter-reset:s}.step{position:relative;padding:28px 24px 24px;border-radius:var(--r);background:var(--card);border:1px solid var(--line)}.step:before{counter-increment:s;content:"0" counter(s);font:800 2.4rem Sora,sans-serif;color:rgba(46,230,255,.35);display:block;margin-bottom:6px}.step h3{font-size:1.1rem;margin-bottom:6px}.step p{color:var(--mut);font-size:.92rem}
.chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.chip{padding:12px 20px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-weight:600;transition:.25s}.chip:hover{background:var(--blue);transform:translateY(-4px)}
.term{background:#020813;border:1px solid var(--line);border-radius:16px;overflow:hidden;font-family:ui-monospace,Consolas,monospace;font-size:.85rem}.term .bar{padding:10px 14px;background:#0a1630;color:var(--mut);display:flex;gap:7px;align-items:center}.term .bar i{width:11px;height:11px;border-radius:50%;background:#ff5f57}.term .bar i:nth-child(2){background:#febc2e}.term .bar i:nth-child(3){background:#28c840}
.term pre{padding:18px;color:#7ff0a8;overflow:auto;line-height:1.7}.term pre b{color:var(--cyan);font-weight:400}
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin:28px 0 8px}.tabs button{padding:10px 20px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--mut);font:600 .92rem Inter,sans-serif;cursor:pointer}.tabs button.on{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#021024;border-color:transparent}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:22px;margin-top:28px}.pgrid .pkg{min-height:430px}
.tw{overflow-x:auto;margin-top:34px;border:1px solid var(--line);border-radius:var(--r)}table{width:100%;border-collapse:collapse;min-width:680px}th,td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:.93rem}th{background:#0a1630;color:var(--cyan);font-family:Sora,sans-serif}td{color:#cdd9f2}tr:last-child td{border:0}
details{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 22px;margin-top:14px}summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}summary:after{content:"+";color:var(--cyan);font-size:1.4rem;line-height:1}details[open] summary:after{content:"–"}details p{color:var(--mut);margin-top:10px}
/* inner hero */
.ph{position:relative;padding:110px 0 90px;overflow:hidden;perspective:900px}.ph>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;transform:scale(1.1)}.ph:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,10,24,.55),var(--bg))}.ph .wrap{position:relative;z-index:2}
.crumb{color:var(--mut);font-size:.85rem;margin-bottom:12px}.crumb a:hover{color:var(--cyan)}.ph h1{font-size:clamp(2.2rem,5.5vw,4rem);max-width:800px}.ph p{color:#c8d6f2;max-width:620px;margin-top:14px;font-size:1.1rem}
/* gallery */
.gal{columns:3;gap:18px;margin-top:36px}.gal figure{break-inside:avoid;margin-bottom:18px;border-radius:18px;overflow:hidden;border:1px solid var(--line);cursor:zoom-in;position:relative}.gal img{width:100%;transition:.7s}.gal figure:hover img{transform:scale(1.08)}.gal figcaption{position:absolute;left:0;right:0;bottom:0;padding:30px 16px 12px;background:linear-gradient(0deg,rgba(0,0,0,.8),transparent);font-size:.85rem;font-weight:600}
.lb{position:fixed;inset:0;z-index:300;background:rgba(2,6,16,.94);display:none;place-items:center;padding:20px;cursor:zoom-out}.lb.on{display:grid}.lb img{max-height:90vh;border-radius:14px}
.vids{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:30px}.vids video{width:100%;border-radius:18px;border:1px solid var(--line)}
/* forms */
form{display:grid;gap:16px}label{font-size:.8rem;font-weight:700;color:var(--mut);letter-spacing:.08em;text-transform:uppercase}
input,select,textarea{width:100%;padding:14px 16px;margin-top:6px;border-radius:12px;border:1px solid var(--line);background:#071229;color:#fff;font:inherit}input:focus,select:focus,textarea:focus{outline:0;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(46,230,255,.18)}.hp{position:absolute;left:-9999px}
.msg{padding:14px;border-radius:12px;display:none;font-weight:600}.msg.ok{display:block;background:rgba(40,200,120,.15);color:#7ff0a8}.msg.er{display:block;background:rgba(255,95,87,.15);color:#ff9a94}
.cta{padding:70px 40px;border-radius:30px;text-align:center;background:linear-gradient(135deg,rgba(30,140,255,.35),rgba(46,230,255,.12)),var(--bg2);border:1px solid var(--line);position:relative;overflow:hidden}.cta h2{font-size:clamp(1.8rem,4vw,2.8rem)}.cta p{color:var(--mut);margin:12px auto 26px;max-width:560px}.cta .btn{margin:5px}
/* footer */
footer{background:#02060f;border-top:1px solid var(--line);padding:64px 0 24px;margin-top:0}.fg{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}footer h4{font-size:.9rem;color:var(--cyan);margin-bottom:14px;letter-spacing:.1em;text-transform:uppercase}footer li{list-style:none;margin:7px 0;color:var(--mut);font-size:.93rem}footer li a:hover{color:#fff}footer p{color:var(--mut);font-size:.92rem;margin-top:14px}.copy{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);color:var(--mut);font-size:.82rem;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.fab{position:fixed;right:20px;bottom:20px;z-index:90;display:flex;flex-direction:column;gap:12px}.fab a,.fab button{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;font-size:1.6rem;border:0;cursor:pointer;box-shadow:0 10px 30px rgba(0,0,0,.5)}.fab .wa{background:#25d366;animation:ring 2.4s infinite}.fab .up{background:var(--blue);color:#fff;width:48px;height:48px;margin-left:5px;font-size:1.1rem;opacity:0;pointer-events:none;transition:.3s}.fab .up.on{opacity:1;pointer-events:auto}@keyframes ring{0%{box-shadow:0 0 0 0 rgba(37,211,102,.6)}100%{box-shadow:0 0 0 22px rgba(37,211,102,0)}}
.rv{opacity:0;transform:translateY(40px) rotateX(8deg);transition:1s cubic-bezier(.2,.7,.2,1)}.rv.in{opacity:1;transform:none}
@media(max-width:980px){.burger{display:block}nav{position:fixed;top:74px;left:0;right:0;background:#050d20;border-bottom:1px solid var(--line);padding:14px 4%;display:none;max-height:calc(100vh - 74px);overflow:auto}nav.open{display:block}nav ul{flex-direction:column;align-items:stretch}.dd .menu{position:static;opacity:1;visibility:visible;transform:none;background:none;border:0;padding:0 0 0 12px}.nav .btn.hd{display:none}
.g3,.g4{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:1fr;gap:30px}.strip .wrap{grid-template-columns:repeat(2,1fr)}.fg{grid-template-columns:1fr 1fr}.hlogo{display:none}.gal{columns:2}}
@media(max-width:640px){.sec{padding:60px 0}.g2,.g3,.g4,.vids{grid-template-columns:1fr}.gal{columns:1}.fg{grid-template-columns:1fr}.hero{min-height:620px}.rc{transform:rotateY(calc(var(--i)*60deg)) translateZ(260px);width:180px;margin-left:-90px}.stage{height:400px}.cf{height:540px}.cta{padding:48px 22px}.arr{display:none}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}}
/* fixes */
html{overflow-x:hidden}
img[src$="smartgpon-logo.jpg"]{aspect-ratio:1/1;object-fit:cover;object-position:50% 53%;border-radius:50%}
nav a.l,nav .dd>span,.btn,.brand span{white-space:nowrap}
.nav .btn{padding:10px 18px;font-size:.88rem}.brand{flex-shrink:0}
.ctl{bottom:78px}.rc{backface-visibility:hidden;-webkit-backface-visibility:hidden}.cf{overflow:hidden;padding:20px 0}
@media(max-width:1180px){.nav .btn.hd{display:none}}
@media(max-width:640px){.ctl{bottom:70px}.slide h1{font-size:2.3rem}.strip{margin-top:-30px}.cf-item{width:270px}}
@media(min-width:981px){.arr{margin-right:80px}}
/* fiber light background */
.fbc{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:3}
.fb{position:relative;overflow:hidden;background:radial-gradient(800px 420px at 50% 55%,rgba(30,140,255,.22),transparent),linear-gradient(180deg,#030814,#061330 50%,#030814)}
.fb .fbc{z-index:1}.fb .wrap{position:relative;z-index:2}
.slide video{opacity:.5;filter:blur(1.5px) saturate(1.3) contrast(1.1);transform:scale(1.06)}
.hero .fbc{mix-blend-mode:screen}
.rc{height:260px;margin-top:-130px}.rc img{height:160px}
/* bouncing glowing logo */
.bb{position:absolute;left:0;top:0;width:64px;height:64px;z-index:6;pointer-events:none;will-change:transform;transform-origin:50% 100%}
.bb img{width:100%;height:100%;border-radius:50%;border:2px solid #fff;object-fit:cover;animation:glw 1.5s ease-in-out infinite}
.bs{position:absolute;left:0;top:0;height:9px;border-radius:50%;background:rgba(46,230,255,.5);filter:blur(4px);z-index:5;pointer-events:none}
@keyframes glw{0%,100%{box-shadow:0 0 12px 2px rgba(46,230,255,.6),0 0 28px rgba(30,140,255,.45)}50%{box-shadow:0 0 26px 8px rgba(46,230,255,1),0 0 60px 18px rgba(30,140,255,.75)}}
/* speed meter behind slider + HUD */
.gbc{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0}
.hud{position:relative;z-index:3;display:flex;justify-content:center;align-items:baseline;gap:12px;margin-top:22px;flex-wrap:wrap}
.hud b{font:800 clamp(2.6rem,7vw,4.4rem) Sora,sans-serif;background:linear-gradient(90deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;min-width:2.4ch;text-align:right;text-shadow:0 0 40px rgba(46,230,255,.4)}
.hud span{color:var(--mut);font-weight:600}.hud .live{font-size:.74rem;letter-spacing:.16em;color:var(--cyan);border:1px solid var(--line);border-radius:99px;padding:5px 12px;background:rgba(30,140,255,.14)}