/* cam-01 · An Nhãn · thietkeweb.dev demo template · mobile-first, no framework */
:root{--bg:#070b11;--bg2:#0b121b;--panel:#0f1722;--panel2:#152233;--line:#1f2f44;--ink:#e8eef6;--muted:#8fa2b8;--acc:#2ef2a5;--acc-ink:#04140d;--acc2:#38a8ff;--red:#ff4d5e;--font:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--head:"Chakra Petch","IBM Plex Sans",sans-serif;--hh:64px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hh) + 10px);-webkit-text-size-adjust:100%}
body{margin:0;font:400 16px/1.65 var(--font);color:var(--ink);background:var(--bg);overflow-x:clip;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-family:var(--head);line-height:1.15;font-weight:700;letter-spacing:-.005em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
svg{fill:currentColor}
:focus-visible{outline:2px solid var(--acc);outline-offset:3px}
[hidden]{display:none!important}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;z-index:999;background:var(--acc);color:var(--acc-ink);padding:10px 16px}.skip:focus{left:10px;top:10px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:11px 22px;border:1.5px solid transparent;border-radius:6px;font:700 15px var(--head);letter-spacing:.04em;text-transform:uppercase;cursor:pointer;transition:background .2s,color .2s,box-shadow .2s,transform .2s}
.btn svg{width:18px;height:18px}
.btn--p{background:var(--acc);color:var(--acc-ink)}.btn--p:hover{box-shadow:0 0 0 4px rgba(46,242,165,.22);transform:translateY(-1px)}
.btn--o{border-color:var(--line);color:var(--ink);background:rgba(255,255,255,.02)}.btn--o:hover{border-color:var(--acc);color:var(--acc)}
.btn--sm{min-height:40px;padding:7px 14px;font-size:13px}
.btn--b{width:100%}
.kick{display:inline-flex;align-items:center;gap:8px;font:600 12px var(--head);letter-spacing:.2em;text-transform:uppercase;color:var(--acc);margin-bottom:10px}
.kick::before{content:"";width:18px;height:2px;background:var(--acc)}
/* header */
.hd{position:sticky;top:0;z-index:60;background:rgba(7,11,17,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.hd.is-sc{box-shadow:0 10px 30px -18px #000}
.hd__in{display:flex;align-items:center;justify-content:space-between;height:var(--hh);gap:12px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo svg{width:36px;height:36px;fill:none}
.logo b{font:700 20px/1 var(--head);letter-spacing:.06em;display:flex;flex-direction:column}
.logo small{font:500 10px var(--font);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-top:4px}
.hd__act{display:flex;align-items:center;gap:8px}
.tel{display:none}
.burger{width:44px;height:44px;border:1px solid var(--line);background:transparent;border-radius:6px;display:grid;place-content:center;gap:5px;cursor:pointer}
.burger span{display:block;width:20px;height:2px;background:var(--ink);transition:transform .25s,opacity .25s}
.menu-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-open .burger span:nth-child(2){opacity:0}
.menu-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav{position:absolute;top:100%;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--line);padding:8px 20px 20px;display:none}
.menu-open .nav{display:block}.menu-open{overflow:hidden}
.nav a{display:block;padding:14px 0;border-bottom:1px solid var(--line);font:600 15px var(--head);letter-spacing:.08em;text-transform:uppercase}
.nav a:hover{color:var(--acc)}
@media(min-width:980px){.burger{display:none}.nav{position:static;display:block;background:none;border:0;padding:0}.nav ul{display:flex;gap:26px}.nav a{padding:6px 0;border:0;font-size:13px}.tel{display:inline-flex}}
/* hero */
.hero{position:relative;padding:34px 0 60px;background:radial-gradient(900px 420px at 85% 0,rgba(46,242,165,.1),transparent 60%),linear-gradient(var(--bg),var(--bg));overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(#000,transparent 85%);-webkit-mask-image:linear-gradient(#000,transparent 85%);pointer-events:none}
.hero__g{position:relative;display:grid;gap:34px;align-items:center;grid-template-columns:minmax(0,1fr)}
@media(min-width:980px){.hero__g{grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:56px}}
.hero h1{font-size:clamp(34px,6.2vw,64px);margin:6px 0 16px;text-transform:uppercase}
.hero h1 em{font-style:normal;color:var(--acc)}
.lead{font-size:18px;color:#b7c5d6;max-width:540px}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0}
.mini{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px;color:var(--muted)}
.mini li{display:flex;gap:6px;align-items:center}.mini svg{width:16px;height:16px;color:var(--acc)}
.vf{position:relative;border:1px solid var(--line);background:#000}
.vf>img{width:100%;aspect-ratio:14/10;object-fit:cover;opacity:.92}
.vf::before,.vf::after{content:"";position:absolute;width:30px;height:30px;border:3px solid var(--acc);pointer-events:none;z-index:2}
.vf::before{left:-6px;top:-6px;border-right:0;border-bottom:0}.vf::after{right:-6px;bottom:-6px;border-left:0;border-top:0}
.scan{position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 3px);pointer-events:none}
.hud{position:absolute;font:600 12px/1 var(--head);letter-spacing:.12em;color:var(--acc);text-shadow:0 1px 3px #000;z-index:1}
.hud--tl{left:14px;top:14px}.hud--tr{right:14px;top:14px;display:flex;gap:6px;align-items:center;color:#fff}
.hud--bl{left:14px;bottom:14px}.hud--br{right:14px;bottom:14px}
.rec{width:9px;height:9px;border-radius:50%;background:var(--red);animation:blink 1.2s steps(2,start) infinite}
@keyframes blink{50%{opacity:.15}}
@media(prefers-reduced-motion:reduce){.rec{animation:none}html{scroll-behavior:auto}}
/* stats */
.stats{border-block:1px solid var(--line);background:var(--bg2)}
.stats__g{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
@media(min-width:760px){.stats__g{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stats__g div{padding:20px 14px;border-right:1px solid var(--line);font-size:14px;color:var(--muted)}
.stats__g div:nth-child(2n){border-right:0}@media(min-width:760px){.stats__g div:nth-child(2n){border-right:1px solid var(--line)}.stats__g div:last-child{border-right:0}}
.stats b{display:block;font:700 30px/1.1 var(--head);color:var(--acc)}
/* sections */
.sec{padding:64px 0}
.sec--alt{background:var(--bg2);border-block:1px solid var(--line)}
.sh{max-width:680px;margin-bottom:30px}
.sh h2{font-size:clamp(28px,4.6vw,42px);text-transform:uppercase}
.sh p{color:var(--muted);margin:10px 0 0}
/* packages */
.pks{display:grid;gap:18px;grid-template-columns:minmax(0,1fr)}
@media(min-width:900px){.pks{grid-template-columns:repeat(3,minmax(0,1fr))}}
.pk{position:relative;background:var(--panel);border:1px solid var(--line);padding:26px 22px;display:flex;flex-direction:column}
.pk--hot{border-color:var(--acc);box-shadow:0 0 0 1px var(--acc) inset,0 24px 50px -30px rgba(46,242,165,.5)}
.pk__flag{position:absolute;right:16px;top:-12px;background:var(--acc);color:var(--acc-ink);font:700 11px var(--head);letter-spacing:.12em;text-transform:uppercase;padding:4px 10px}
.pk h3{font-size:22px;text-transform:uppercase}
.pk__for{color:var(--muted);font-size:14px;margin:4px 0 14px}
.pk__p{font:700 34px/1 var(--head);color:var(--acc);margin:6px 0 4px}.pk__p small{font:500 13px var(--font);color:var(--muted);margin-left:6px}
.pk ul{margin:14px 0 22px;display:grid;gap:8px;font-size:15px}
.pk li{display:flex;gap:8px;align-items:flex-start}.pk li svg{flex:none;width:18px;height:18px;margin-top:3px;color:var(--acc)}
.pk .btn{margin-top:auto}
/* products */
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:20px}
.chip{flex:none;border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:99px;padding:8px 16px;font:600 13px var(--head);letter-spacing:.06em;text-transform:uppercase;cursor:pointer}
.chip.is-on{background:var(--acc);border-color:var(--acc);color:var(--acc-ink)}
.pds{display:grid;gap:16px;grid-template-columns:minmax(0,1fr)}
@media(min-width:620px){.pds{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:980px){.pds{grid-template-columns:repeat(3,minmax(0,1fr))}}
.pd{background:var(--panel);border:1px solid var(--line);display:flex;flex-direction:column;transition:border-color .2s,transform .2s}
.pd:hover{border-color:var(--acc);transform:translateY(-3px)}
.pd__img{position:relative;aspect-ratio:4/3;overflow:hidden;background:#000}.pd__img img{width:100%;height:100%;object-fit:cover}
.pd__tag{position:absolute;left:10px;top:10px;background:rgba(7,11,17,.85);border:1px solid var(--acc);color:var(--acc);font:600 11px var(--head);letter-spacing:.1em;text-transform:uppercase;padding:3px 8px}
.pd__b{padding:16px;display:flex;flex-direction:column;flex:1}
.pd__m{font:600 12px var(--head);letter-spacing:.14em;color:var(--acc2)}
.pd h3{font-size:19px;margin:4px 0 10px}
.pd__s{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}.pd__s span{font-size:12px;border:1px solid var(--line);padding:2px 8px;color:var(--muted)}
.pd__f{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:auto}.pd__f b{font:700 20px var(--head);color:var(--ink)}.pd__f small{display:block;font:500 11px var(--font);color:var(--muted)}
/* split */
.split{display:grid;gap:30px;align-items:center;grid-template-columns:minmax(0,1fr)}
@media(min-width:900px){.split{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px}.split--r>:first-child{order:2}}
.split h2{font-size:clamp(28px,4.4vw,40px);text-transform:uppercase;margin-bottom:12px}
.feat{display:grid;gap:12px;margin:18px 0 24px}
.feat li{display:flex;gap:12px;padding:14px;background:var(--panel);border:1px solid var(--line)}.feat svg{flex:none;width:20px;height:20px;color:var(--acc);margin-top:3px}.feat b{display:block;font-family:var(--head)}.feat span{color:var(--muted);font-size:14px}
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;border:1px solid var(--line);padding:6px;background:#000}
.tile{position:relative;overflow:hidden}.tile img{aspect-ratio:4/3;width:100%;object-fit:cover;opacity:.9}
.tile .hud{font-size:11px}
.netimg{position:relative;border:1px solid var(--line)}.netimg img{width:100%;aspect-ratio:4/3;object-fit:cover}
.tags{display:flex;flex-wrap:wrap;gap:8px}.tags span{border:1px solid var(--acc);color:var(--acc);font:600 12px var(--head);letter-spacing:.1em;padding:4px 10px}
/* steps */
.steps{display:grid;gap:14px;counter-reset:s;grid-template-columns:minmax(0,1fr)}
@media(min-width:760px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}
.steps li{position:relative;background:var(--panel);border:1px solid var(--line);padding:22px 18px}
.steps b{font:700 40px/1 var(--head);color:transparent;-webkit-text-stroke:1px var(--acc)}
.steps h3{font-size:18px;margin:8px 0 6px;text-transform:uppercase}.steps p{margin:0;color:var(--muted);font-size:14px}
/* form */
.form{background:var(--panel);border:1px solid var(--line);padding:22px}
.fg{display:grid;gap:14px;grid-template-columns:minmax(0,1fr)}@media(min-width:620px){.fg{grid-template-columns:repeat(2,minmax(0,1fr))}.fg .full{grid-column:1/-1}}
.fld{display:flex;flex-direction:column;gap:6px;min-width:0}
.fld label{font:600 12px var(--head);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.fld input,.fld select,.fld textarea{width:100%;min-height:48px;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:10px 12px}
.fld textarea{min-height:90px;resize:vertical}
.fld input:focus,.fld select:focus,.fld textarea:focus{border-color:var(--acc);outline:0}
.fld [aria-invalid=true]{border-color:var(--red)}
.err{color:#ff8a95;font-size:13px;min-height:0}
.ok{margin-top:14px;padding:14px;border:1px solid var(--acc);background:rgba(46,242,165,.08);color:var(--acc)}
.note{font-size:13px;color:var(--muted);margin:12px 0 0}
.form .btn{margin-top:16px}
.aside{display:grid;gap:12px;align-content:start}
.aside li{display:flex;gap:12px;align-items:flex-start}.aside svg{flex:none;width:20px;height:20px;color:var(--acc);margin-top:3px}
/* faq */
.faq{display:grid;gap:10px;max-width:820px}
.faq details{background:var(--panel);border:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:16px 50px 16px 18px;font:600 17px var(--head);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:24px;color:var(--acc)}
.faq details[open] summary::after{content:"\2212"}
.faq p{padding:0 18px 16px;margin:0;color:#b7c5d6}
/* footer */
.ft{background:#04070b;border-top:1px solid var(--line);padding:46px 0 24px}
.ft__g{display:grid;gap:28px;grid-template-columns:minmax(0,1fr)}@media(min-width:760px){.ft__g{grid-template-columns:1.3fr 1fr 1fr 1.2fr}}
.ft h3{font-size:14px;letter-spacing:.14em;text-transform:uppercase;color:var(--acc);margin-bottom:12px}
.ft li{margin-bottom:8px;color:var(--muted);font-size:15px}.ft a:hover{color:var(--acc)}
.ft p{color:var(--muted);font-size:15px;margin-top:12px}
.ft__b{border-top:1px solid var(--line);margin-top:30px;padding-top:18px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:13px;color:var(--muted)}
.ft__b p{margin:0}
/* detail page */
.sp{padding:22px 0 56px}
.bc{display:flex;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--muted);margin-bottom:18px}.bc a{color:var(--acc)}
.sp__g{display:grid;gap:28px;grid-template-columns:minmax(0,1fr)}
@media(min-width:900px){.sp__g{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:48px}}
.gal__main{position:relative}.gal__main img{width:100%;aspect-ratio:4/3;object-fit:cover}
.gal__th{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:12px}
.gal__th button{padding:0;border:2px solid var(--line);background:#000;cursor:pointer;overflow:hidden}.gal__th button.is-on{border-color:var(--acc)}.gal__th img{width:100%;aspect-ratio:4/3;object-fit:cover}
.sp__code{font:600 13px var(--head);letter-spacing:.16em;color:var(--acc2)}
.sp h1{font-size:clamp(28px,5vw,40px);text-transform:uppercase;margin:6px 0 10px}
.tg{display:inline-block;border:1px solid var(--acc);color:var(--acc);font:600 11px var(--head);letter-spacing:.12em;text-transform:uppercase;padding:3px 9px;margin-right:8px}
.sp__price{margin:16px 0;padding:14px 16px;background:var(--panel);border:1px solid var(--line);color:var(--muted);font-size:13px}.sp__price b{display:block;font:700 30px var(--head);color:var(--acc)}
.sp__btns{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}.sp__btns .btn{flex:1 1 150px}
.spec{width:100%;border-collapse:collapse;font-size:14px}.spec th,.spec td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}.spec th{width:40%;color:var(--muted);font-weight:500;background:var(--panel)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-top:36px;overflow-x:auto}
.tabs button{flex:none;border:0;background:none;padding:12px 16px;font:600 14px var(--head);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-1px}
.tabs button[aria-selected=true]{color:var(--acc);border-color:var(--acc)}
.tabp{padding:18px 0;max-width:780px;color:#b7c5d6}.tabp ul{padding-left:20px;list-style:disc}.tabp li{margin-bottom:6px}
.sp h2{font-size:26px;text-transform:uppercase;margin:40px 0 14px}
.rel{display:grid;gap:12px;grid-template-columns:repeat(2,minmax(0,1fr))}@media(min-width:900px){.rel{grid-template-columns:repeat(4,minmax(0,1fr))}}
.rel a{display:block;background:var(--panel);border:1px solid var(--line)}.rel a:hover{border-color:var(--acc)}.rel img{width:100%;aspect-ratio:4/3;object-fit:cover}
.rel span{display:block;padding:10px 12px;font:600 14px/1.3 var(--head)}.rel small{display:block;color:var(--acc2);letter-spacing:.12em;font-size:11px;margin-bottom:2px}.rel b{display:block;color:var(--acc);margin-top:6px}
.qs{margin-top:44px}