/* camsac — đơn sắc bản 2. White / jet black, light type, yellow only as the charging accent. */
:root{
  --bg:#ffffff; --band:#f2f2ef; --panel:#ffffff; --fg:#0b0b0c; --mute:#5f5f5c; --line:#e3e3df;
  --inv-bg:#0b0b0c; --inv-fg:#f5f5f2; --volt:#ffd60a; --on-volt:#0b0b0c;
  --font:"Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --gut:max(20px, env(safe-area-inset-left, 0px));
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{--bg:#0b0b0c;--band:#141416;--panel:#1b1b1e;--fg:#f5f5f2;--mute:#a3a39f;--line:#2e2e32;--inv-bg:#f5f5f2;--inv-fg:#0b0b0c;color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:400 16px/1.6 var(--font);-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--volt);outline-offset:3px}
.wrap{max-width:1200px;margin:0 auto;padding-left:var(--gut);padding-right:max(20px, env(safe-area-inset-right, 0px))}
.ic{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--volt);box-shadow:0 0 10px var(--volt)}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:var(--volt);color:var(--on-volt);padding:8px 12px}

/* header */
.top{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:28px;height:64px}
.logo img{height:22px;width:auto}
.logo .l-dark{display:none}
@media (prefers-color-scheme: dark){.logo .l-light{display:none}.logo .l-dark{display:block}}
.nav{display:none;gap:28px;font-size:15px}
.nav a{text-decoration:none;color:var(--fg);padding:6px 0;border-bottom:1px solid transparent}
.nav a:hover,.nav a[aria-current]{border-bottom-color:var(--fg)}
.mycar{margin-left:auto;display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--fg);background:none;color:var(--fg);font:500 14px/1 var(--font);cursor:pointer;text-decoration:none}
.mycar.on{background:var(--fg);color:var(--bg)}
@media (min-width:960px){.nav{display:flex}}

/* bottom nav (phone) */
.bnav{position:fixed;left:0;right:0;bottom:0;z-index:20;display:grid;grid-template-columns:repeat(4,1fr);background:var(--bg);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px)}
.bnav a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 0 8px;font-size:11px;line-height:14px;text-decoration:none;color:var(--mute)}
.bnav a[aria-current]{color:var(--fg)}
.bnav a[aria-current]::before{content:"";position:absolute;margin-top:-9px;width:28px;height:2px;background:var(--volt)}
body{padding-bottom:calc(62px + env(safe-area-inset-bottom,0px))}
@media (min-width:960px){.bnav{display:none}body{padding-bottom:0}}

/* hero 3D (always dark) */
.hero{position:relative;background:#0b0b0c;color:#f5f5f2}
.hero .track{height:300vh}
.hero .stick{position:sticky;top:64px;height:calc(100svh - 64px);min-height:560px;overflow:hidden}
.hero canvas,.hero .poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:68% 50%}
.hero .shade{position:absolute;inset:0;background:linear-gradient(rgba(11,11,12,.8),rgba(11,11,12,0) 38%,rgba(11,11,12,0) 55%,rgba(11,11,12,.9))}
.hero .kicker{position:absolute;left:var(--gut);right:20px;top:22px;gap:12px;display:flex;justify-content:space-between;font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.hero .kicker span{display:inline-flex;align-items:center;gap:8px}
.hero .copy{position:absolute;left:var(--gut);right:20px;bottom:36px;display:flex;flex-direction:column;gap:14px;max-width:640px}
.hero .states{display:flex;gap:6px;margin:0;padding:0;list-style:none;font-size:12px}
.hero .states li{padding:3px 10px;border-radius:999px;border:1px solid rgba(245,245,242,.45);color:rgba(245,245,242,.75)}
.hero .states li.on{background:var(--volt);border-color:var(--volt);color:#0b0b0c}
.hero h1{margin:0;font-weight:300;font-size:clamp(64px,16vw,150px);line-height:.92;letter-spacing:-.05em}
.hero h1 s{text-decoration-color:var(--volt);text-decoration-thickness:.07em}
.hero .line{margin:0;font-size:17px;line-height:1.5;color:rgba(245,245,242,.82);max-width:36ch;min-height:51px}
.hero .line b{color:#f5f5f2;font-weight:500}
.hero .ctas{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;min-height:46px;padding:0 22px;border-radius:999px;font:500 15px/1 var(--font);text-decoration:none;border:1px solid currentColor;background:none;color:inherit;cursor:pointer}
.btn.solid{background:#f5f5f2;color:#0b0b0c;border-color:#f5f5f2}
.btn.ink{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.hero .ban{position:absolute;width:min(34vw,220px);aspect-ratio:1;transform:translate(-50%,-50%) scale(.6);opacity:0;transition:opacity .25s,transform .25s;pointer-events:none}
.hero .ban.on{opacity:1;transform:translate(-50%,-50%) scale(1)}
.hero .bar{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(255,255,255,.08)}
.hero .bar i{display:block;height:100%;width:0;background:var(--volt)}
@media (min-width:960px){.hero .copy{bottom:auto;top:50%;transform:translateY(-50%);left:max(48px,calc((100vw - 1200px)/2 + 20px));max-width:520px}.hero .line{font-size:20px}.hero canvas,.hero .poster{left:auto;right:0;width:min(55%,760px)}.hero .shade{background:linear-gradient(90deg,#0b0b0c 40%,rgba(11,11,12,0) 60%)}.hero .kicker{left:max(48px,calc((100vw - 1200px)/2 + 20px))}}
@media (prefers-reduced-motion:reduce){.hero .ban{transition:none}}

/* sections */
.band{padding-block:44px;border-top:1px solid var(--line)}
.band.alt{background:var(--band)}
@media (min-width:960px){.band{padding-block:72px}}
.sh{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:20px}
.sh p{margin:0 0 6px;display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.sh h2{margin:0;font-weight:400;font-size:28px;line-height:1.1;letter-spacing:-.03em;text-wrap:balance}
.sh a{font-size:14px;text-decoration:none;border-bottom:1px solid currentColor;white-space:nowrap}
@media (min-width:960px){.sh h2{font-size:36px}}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:20px}
.grid2{display:grid;gap:40px}
@media (min-width:960px){.grid2{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px;align-items:start}}

/* car picker */
.picker{padding:20px;display:flex;flex-direction:column;gap:18px}
.brands{display:flex;gap:18px;overflow-x:auto;border-bottom:1px solid var(--line);scrollbar-width:none}
.brands::-webkit-scrollbar{display:none}
.brands button{flex:none;border:0;background:none;padding:0 0 6px;margin-bottom:-1px;font:300 23px/1.1 var(--font);letter-spacing:-.02em;color:var(--mute);border-bottom:2px solid transparent;cursor:pointer}
.brands button[aria-pressed="true"]{color:var(--fg);font-weight:500;border-bottom-color:var(--fg)}
.models{display:flex;gap:10px;flex-wrap:wrap}
.models button,.models a{min-height:44px;padding:0 20px;border-radius:999px;border:1px solid var(--line);background:none;color:var(--fg);font:500 15px/1 var(--font);cursor:pointer;display:inline-flex;align-items:center;text-decoration:none}
.models button[aria-pressed="true"]{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.hint{margin:0;font-size:14px;line-height:1.5;color:var(--mute)}

/* question list */
.qs a{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;text-decoration:none}
.qs a+a{border-top:1px solid var(--line)}
.qs .t{display:flex;flex-direction:column;gap:6px}
.tag{align-self:flex-start;font-size:11px;letter-spacing:.08em;text-transform:uppercase;padding:3px 8px;border-radius:999px;background:var(--volt);color:var(--on-volt);font-weight:600}
.tag.soft{background:var(--band);color:var(--mute)}
.qs .q{font-size:18px;line-height:1.4;letter-spacing:-.01em}
.qs .st{font-size:13px;color:var(--mute)}

/* entry tiles */
.tiles{display:grid;gap:8px}
@media (min-width:960px){.tiles{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}}
.tile{display:flex;flex-direction:column;justify-content:space-between;gap:40px;min-height:160px;padding:22px;border-radius:20px;border:1px solid var(--line);background:var(--panel);text-decoration:none}
.tile.inv{background:var(--inv-bg);color:var(--inv-fg);border-color:var(--inv-bg)}
.tile .r{display:flex;justify-content:space-between;align-items:center}
.tile .disc{width:48px;height:48px;border-radius:50%;background:var(--volt);color:var(--on-volt);display:flex;align-items:center;justify-content:center}
.tile b{display:block;font-weight:300;font-size:36px;line-height:1;letter-spacing:-.03em}
.tile small{display:block;margin-top:8px;font-size:13px;opacity:.75}

/* tables & lists */
.tablewrap{overflow-x:auto;border-radius:20px;border:1px solid var(--line);background:var(--panel)}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:center;white-space:nowrap}
thead th{font-weight:500;font-size:13px;color:var(--mute);text-transform:lowercase}
tbody th{text-align:left;font-weight:500;position:sticky;left:0;background:var(--panel)}
tbody th small{display:block;font-weight:400;color:var(--mute);font-size:12px}
tr.mine th,tr.mine td{background:rgba(255,214,10,.16)}
.cell{display:inline-flex;align-items:center;gap:6px;color:var(--mute);font-size:13px}
.cell i{width:8px;height:8px;border-radius:50%;border:1.5px dashed currentColor}
.legend{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:14px;font-size:13px;color:var(--mute)}
.rows .row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px}
.rows .row+.row{border-top:1px solid var(--line)}
.pending{font-size:13px;color:var(--mute);border:1px dashed var(--line);border-radius:6px;padding:1px 8px;white-space:nowrap}

/* page head */
.ph{padding-block:36px 8px}
.crumbs{display:flex;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--mute);margin-bottom:14px}
.crumbs a{color:var(--mute)}
.ph h1{margin:0;font-weight:300;font-size:clamp(40px,10vw,80px);line-height:1;letter-spacing:-.045em;text-wrap:balance}
.ph .eyebrow{margin:0 0 8px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.ph .lede{margin:14px 0 0;font-size:17px;line-height:1.55;color:var(--mute);max-width:56ch}

/* search + lamps */
.search{display:flex;align-items:center;gap:10px;height:56px;padding:0 6px 0 18px;border-radius:999px;border:1px solid var(--fg);background:var(--panel)}
.search input{flex:1;min-width:0;border:0;background:none;color:var(--fg);font:400 17px/1 var(--font);outline:none}
.lamps{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:8px}
.lamps button{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 6px;border-radius:16px;border:1px solid var(--line);background:var(--panel);color:var(--fg);font:400 13px/1.3 var(--font);cursor:pointer}
.lamps .ic{width:30px;height:30px}
.notice{padding:18px 20px;border-radius:16px;background:var(--band);font-size:15px;line-height:1.55}
.notice[hidden]{display:none}

/* prose */
.prose{max-width:680px;font-size:17px;line-height:1.7}
.prose h2{font-weight:400;font-size:26px;letter-spacing:-.02em;margin:36px 0 10px}
.prose ul{padding-left:20px}

/* footer */
.foot{background:var(--band);color:var(--fg);border-top:1px solid var(--line);padding:40px 0 28px;font-size:14px;line-height:1.6}
.foot a{color:inherit;text-decoration:none}
.foot .k{margin:0;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}
.foot h3{margin:2px 0 0;font-size:26px;font-weight:500;letter-spacing:-.02em}
.foot .disc{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--volt);color:#0b0b0c;flex:none}
.fx-card{display:flex;flex-wrap:wrap;align-items:center;gap:16px 20px;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:22px 24px}
.fx-card>div{flex:1;min-width:180px}.big-disc{width:52px;height:52px}
.fx-mail{display:inline-flex;align-items:center;gap:10px;background:var(--fg);color:var(--bg)!important;padding:14px 22px;border-radius:999px;font-weight:600;font-size:16px}
.fx-mail .ic{width:18px;height:18px}
.fx-grid{display:grid;gap:26px;grid-template-columns:1fr 1fr;margin-top:36px}.fx-grid>div{grid-column:1/-1}
.fx-grid nav{display:flex;flex-direction:column;gap:9px}.fx-grid b{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--mute);font-weight:500}
.fx-grid nav a:hover{text-decoration:underline;text-underline-offset:4px}
.foot .big{font-weight:300;font-size:30px;letter-spacing:-.03em}.fx-grid p{margin:6px 0 0;color:var(--mute)}
.fx-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:32px}
.fx-tiles>a,.fx-tiles>.off{display:flex;flex-direction:column;gap:14px;padding:16px;border-radius:16px;background:var(--panel);border:1px solid var(--line)}
.fx-tiles .disc{width:40px;height:40px;background:var(--fg);color:var(--bg)}.fx-tiles .ic{width:20px;height:20px}
.fx-tiles .nm{display:flex;flex-direction:column;font-weight:500;line-height:1.3}.fx-tiles small{font-weight:400;color:var(--mute);font-size:12px}
.fx-own{display:flex;align-items:center;gap:16px;margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.fx-02{flex:none;border:1.5px solid var(--fg);border-radius:10px;padding:8px 12px;display:flex;flex-direction:column;line-height:1.25}
.fx-02 small{font-size:10px;color:var(--mute);text-transform:uppercase;letter-spacing:.08em}.fx-02 b{font-weight:600;font-size:15px}
.fx-own p{margin:0;font-size:13px}.fx-own p span{color:var(--mute)}
@media(min-width:900px){.fx-grid{grid-template-columns:2fr 1fr 1fr}.fx-grid>div{grid-column:auto}.foot .big{font-size:36px}.fx-tiles{max-width:640px}}
.fx-tiles>.off{opacity:.75}
.fx-tiles>a:hover{border-color:var(--fg)}