/* Jackapp grade-shell.css — shared styles for all grade pages (lop2-9).
 *
 * Extracted from 8 identical 254-line <style> blocks (P1 centralization).
 * lop6emg uses its own styles (different page architecture).
 */

/* Fix: hint boxes must have dark text on light background for readability */
.wp-hint,.wp-hint p,.wp-hint .wp-hl{color:#F5F0E8 !important}
.wp-hint{background:linear-gradient(135deg,#0A0E1F,#1a2450) !important;border:1px solid #fde047 !important;box-shadow:0 0 14px rgba(253,224,71,.22);border-radius:12px;padding:10px 12px}
:root{--bg:#0A0E1F;--card:#1A1D26;--ink:#F5F0E8;--mut:#8A8FA8;--pri:#1FCDD0;--pri2:#7B5FC9;--sun:#E8C672;--ok:#22c55e;--bad:#FF4D8D;--warn:#FFB45E;--line:#2B2F3A;--shadow:0 12px 32px -14px rgba(31,205,208,.35),0 4px 16px rgba(0,0,0,.5);--r:18px}
:root[data-theme=dark]{--bg:#0A0E1F;--card:#1A1D26;--ink:#F5F0E8;--mut:#8A8FA8;--pri:#1FCDD0;--pri2:#7B5FC9;--sun:#E8C672;--ok:#22c55e;--bad:#FF4D8D;--warn:#FFB45E;--line:#2B2F3A;--shadow:0 12px 32px -14px rgba(31,205,208,.35),0 4px 16px rgba(0,0,0,.5)}:root[data-theme=light]{--bg:#F6F3EC;--card:#FFFFFF;--ink:#232347;--mut:#6B7280;--pri:#0E9F9F;--pri2:#7B5FC9;--sun:#D9A441;--ok:#16a34a;--bad:#E11D48;--warn:#D97706;--line:#E4E0D4;--shadow:0 12px 32px -14px rgba(14,159,159,.35),0 4px 16px rgba(0,0,0,.08)}
html{font-size:calc(100%*var(--jack-font,1))}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0}body{font-size:1rem}
:root[data-calm="1"] *{animation:none!important;transition:none!important}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5;padding-bottom:84px;min-height:100vh}
button{font:inherit;cursor:pointer;border:0;border-radius:12px;padding:10px 16px;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#06121f;font-weight:800;transition:transform .12s,filter .12s;box-shadow:0 4px 16px -6px rgba(34,211,238,.55)}
button:hover{filter:brightness(1.1)}button:active{transform:scale(.96)}
button.sec{background:transparent;color:var(--pri);border:2px solid var(--pri);box-shadow:0 0 12px -4px rgba(34,211,238,.5)}
button.gh{background:var(--line);color:var(--ink)}
button.ok{background:var(--ok)}button.bad{background:var(--bad)}
button:disabled{opacity:.5;cursor:not-allowed}
input,textarea,select{font:inherit;width:100%;padding:10px 12px;border-radius:12px;border:2px solid var(--line);background:var(--card);color:var(--ink)}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--pri)}
textarea{min-height:120px;resize:vertical}
a{color:var(--pri)}
header.top{position:sticky;top:0;z-index:20;background:rgba(5,8,22,.88);-webkit-backdrop-filter:blur(14px) saturate(1.4);backdrop-filter:blur(14px) saturate(1.4);color:var(--ink);padding:10px 16px;display:flex;align-items:center;gap:12px;border-bottom:1px solid rgba(34,211,238,.35);box-shadow:0 8px 28px -12px rgba(34,211,238,.5)}
header.top h1{font-size:17px;margin:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chip{background:rgba(255,255,255,.2);border-radius:999px;padding:4px 10px;font-weight:700;font-size:13px;white-space:nowrap}
.wrap{max-width:980px;margin:0 auto;padding:16px}
.card{background:linear-gradient(180deg,rgba(17,24,48,.82),rgba(9,13,30,.78));border:1px solid rgba(34,211,238,.22);border-radius:var(--r);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);padding:16px;margin-bottom:14px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.lesson-part{margin:26px 0 8px;padding-top:4px}
.part-title{font-size:21px;font-weight:900;margin:0 0 4px;display:flex;align-items:center;gap:8px}
.part-desc{font-size:13px;opacity:.65;margin:0 0 12px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.sp{flex:1}
h2{margin:6px 0 10px;font-size:20px}h3{margin:4px 0 8px;font-size:16px}
.mut{color:var(--mut);font-size:13px}
nav.tabs{position:fixed;bottom:0;left:0;right:0;background:var(--card);display:flex;justify-content:space-around;border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:30}
nav.tabs a{flex:1;text-align:center;text-decoration:none;color:var(--mut);font-size:11px;font-weight:600;padding:4px 0;border-radius:12px}
nav.tabs a span{display:block;font-size:22px;line-height:1.1;transition:transform .2s}
nav.tabs a.on{color:var(--pri)}nav.tabs a.on span{transform:translateY(-3px) scale(1.15)}
/* ============ inline login modal (đăng nhập ngay tại chỗ, không bắt về trang chủ) ============ */
#loginModal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:16px}
#loginModal .lm-backdrop{position:absolute;inset:0;background:rgba(2,6,18,.72);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
#loginModal .lm-box{position:relative;max-width:440px;width:100%;max-height:88vh;overflow:auto;margin:0;animation:pop .25s}
#loginModal .lm-x{position:absolute;top:8px;right:8px;width:36px;height:36px;min-height:36px;padding:0;border-radius:50%;background:transparent;color:var(--mut);border:1px solid var(--line);box-shadow:none;font-size:16px}
#loginModal .lm-x:hover{color:var(--ink)}
#loginModal input{width:100%;box-sizing:border-box;margin:4px 0 8px}
@keyframes pop{from{transform:scale(.94);opacity:0}to{transform:scale(1);opacity:1}}
.subj{cursor:pointer;position:relative;overflow:hidden;transition:transform .2s}
.subj:hover{transform:translateY(-4px) rotate(-.4deg)}
.subj .em{font-size:38px}
.bar{height:10px;background:var(--line);border-radius:99px;overflow:hidden}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--pri),var(--pri2));border-radius:99px;transition:width .6s}
.pill{display:inline-block;padding:2px 10px;border-radius:99px;background:var(--line);font-size:12px;font-weight:700}
.opt{display:block;width:100%;text-align:left;margin:8px 0;background:var(--card);color:var(--ink);border:2px solid var(--line);padding:12px 14px}
.opt:hover{border-color:var(--pri);box-shadow:0 0 14px rgba(34,211,238,.35)}
.opt.right{border-color:var(--ok);background:rgba(22,163,74,.15)}
.opt.wrong{border-color:var(--bad);background:rgba(220,38,38,.12);animation:shake .4s}
.q{font-size:18px;font-weight:600;white-space:pre-wrap}
.fb{padding:10px 12px;border-radius:12px;margin-top:10px;animation:pop .3s}
.fb.ok{background:rgba(22,163,74,.15)}.fb.no{background:rgba(220,38,38,.12)}
.pts li{margin:6px 0}
.src{font-size:12px;color:var(--mut)}
.msg{padding:10px 12px;border-radius:14px;margin:8px 0;max-width:92%;white-space:pre-wrap;word-wrap:break-word}
.msg.u{background:linear-gradient(135deg,var(--pri),var(--pri2));color:#06121f;margin-left:auto;border-bottom-right-radius:4px}
.msg.a{background:var(--line);border-bottom-left-radius:4px}
.fc{perspective:900px;height:200px;cursor:pointer}
.fc>div{position:relative;width:100%;height:100%;transition:transform .5s;transform-style:preserve-3d}
.fc.flip>div{transform:rotateY(180deg)}
.fc .f,.fc .b{position:absolute;inset:0;backface-visibility:hidden;border-radius:var(--r);display:flex;align-items:center;justify-content:center;text-align:center;padding:16px;font-size:22px;font-weight:700;background:var(--card);box-shadow:var(--shadow)}
.fc .b{transform:rotateY(180deg);background:linear-gradient(135deg,var(--pri),var(--pri2));color:#06121f}
.mem{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.mc{aspect-ratio:1/1.05;border-radius:14px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;font-weight:700;padding:4px;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#06121f;cursor:pointer;transition:transform .3s;user-select:none;word-break:break-word}
.mc.up{background:var(--card);color:var(--ink);border:2px solid var(--pri)}
.mc.done{background:rgba(22,163,74,.2);color:var(--ink);border:2px solid var(--ok);animation:pop .4s}
.tile{display:inline-flex;align-items:center;justify-content:center;width:42px;height:46px;margin:3px;border-radius:10px;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#06121f;font-weight:800;font-size:20px;cursor:pointer;text-transform:uppercase}
.tile.slot{background:var(--card);color:var(--ink);border:2px dashed var(--pri)}
.tile.used{opacity:.25;pointer-events:none}
.monster{font-size:84px;text-align:center;animation:float 2.4s ease-in-out infinite}
.monster.hit{animation:shake .4s}
.hp{height:16px;border-radius:99px;background:var(--line);overflow:hidden}.hp>i{display:block;height:100%;background:linear-gradient(90deg,#ef4444,#f59e0b);transition:width .4s}
.heart{font-size:22px}
.toast{position:fixed;top:64px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:99px;z-index:100;font-weight:700;animation:pop .3s;max-width:90vw;text-align:center}
.xpf{position:fixed;font-weight:900;color:var(--warn);font-size:22px;pointer-events:none;z-index:90;animation:up 1s forwards;text-shadow:0 1px 3px rgba(0,0,0,.4)}
canvas#cf{position:fixed;inset:0;pointer-events:none;z-index:95}
.badge{display:inline-flex;flex-direction:column;align-items:center;width:84px;margin:6px;text-align:center;font-size:11px}
.badge b{font-size:34px}.badge.lock{filter:grayscale(1);opacity:.4}
table{border-collapse:collapse;width:100%;font-size:14px}th,td{padding:6px 8px;border-bottom:1px solid var(--line);text-align:left}
.av{font-size:44px}
.profiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px}
.pf{text-align:center;cursor:pointer;padding:14px 8px;border-radius:var(--r);background:var(--card);box-shadow:var(--shadow);transition:transform .2s}.pf:hover{transform:scale(1.05)}
.avpick span{font-size:30px;cursor:pointer;padding:4px;border-radius:10px;display:inline-block}.avpick span.on{background:var(--pri)}
.ring{--p:0;width:60px;height:60px;border-radius:50%;background:conic-gradient(var(--pri) calc(var(--p)*1%),var(--line) 0);display:grid;place-items:center;flex:none}
.ring i{font-style:normal;width:46px;height:46px;border-radius:50%;background:var(--card);display:grid;place-items:center;font-size:13px;font-weight:800}
.warnbox{background:rgba(245,158,11,.15);border-left:4px solid var(--warn);padding:8px 12px;border-radius:8px;font-size:13px}
.viz{background:var(--bg);border-radius:14px;padding:10px;margin:8px 0;overflow:hidden}.viz svg{width:100%;height:auto;display:block}.viz .ctl{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:8px}.viz .ctl label{margin:0;font-size:13px;color:var(--mut)}.viz input[type=range]{flex:1;min-width:120px}.viz input[type=number],.viz input[type=text]{width:84px;flex:none}.viz select{width:auto;flex:none}.viz .ctl>label{flex:none}.viz .out{font-weight:700;font-size:16px;margin-top:6px}.vtabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:6px}.vtabs button{padding:6px 12px;font-size:13px}.vk{fill:var(--ink)}.vm{fill:var(--mut)}.vp{fill:var(--pri)}.vc{fill:var(--card)}.vs{stroke:var(--ink);fill:none}.vsp{stroke:var(--pri);fill:none}.vl{stroke:var(--line);fill:none}.vok{fill:var(--ok)}.vbad{fill:var(--bad)}.vw{fill:var(--warn)}@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}.bob{animation:bob 1.4s ease-in-out infinite}@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}.pulse{animation:pulse 1.2s infinite}
.msg ol,.msg ul{margin:.2em 0 .3em;padding-left:1.3em}.msg li{margin:.1em 0}.msg code{background:rgba(255,255,255,.12);padding:0 .3em;border-radius:4px}.tdots i{display:inline-block;width:7px;height:7px;margin-right:4px;border-radius:50%;background:var(--pri);animation:tdb 1s infinite}.tdots i:nth-child(2){animation-delay:.15s}.tdots i:nth-child(3){animation-delay:.3s}@keyframes tdb{50%{transform:translateY(-4px);opacity:.5}}.stpb{margin:0 0 8px 6px}.cont{margin-top:6px}
.cur{animation:blink 1s steps(2) infinite;color:var(--pri)}@keyframes blink{50%{opacity:0}}.io{padding:6px 10px;font-size:15px}.io.on{background:#ef4444!important;color:#fff!important}.rd{font-size:12px;padding:3px 8px}.rd.on{background:var(--pri);color:#06121f}@media (prefers-reduced-motion:reduce){.cur{animation:none}}
#cfab{position:fixed;right:10px;bottom:84px;width:46px;height:46px;border-radius:50%;font-size:23px;transition:opacity .2s;padding:0;background:linear-gradient(135deg,var(--pri),var(--pri2));box-shadow:0 6px 20px rgba(34,211,238,.5),0 0 16px rgba(240,171,252,.35);z-index:40}#csheet{position:fixed;left:0;right:0;bottom:0;height:78vh;max-width:720px;margin:auto;background:rgba(8,12,28,.95);border:1px solid rgba(34,211,238,.35);border-bottom:0;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-radius:20px 20px 0 0;box-shadow:0 -10px 44px rgba(0,0,0,.55),0 0 30px -6px rgba(34,211,238,.35);z-index:70;display:flex;flex-direction:column;padding:12px;animation:pop .25s}#csheet .cm{flex:1;overflow:auto;padding:4px}.chips{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0}.chips button{padding:6px 10px;font-size:12.5px;border-radius:99px;min-height:44px}.msg .spk{padding:2px 8px;font-size:13px;margin-right:4px;min-height:44px;min-width:44px}
@keyframes pop{0%{transform:scale(.8);opacity:0}100%{transform:scale(1);opacity:1}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-8px)}75%{transform:translateX(8px)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes up{to{transform:translateY(-70px);opacity:0}}
.fade{animation:pop .25s}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
/* arcade games (Rhythm flight, Knowledge kart) */
.arc [hidden],.arwrap [hidden]{display:none!important}
.arhud{display:flex;flex-wrap:wrap;gap:6px;align-items:center;justify-content:center;max-width:420px;margin:0 auto 6px}.arhud button{padding:8px 12px;min-height:40px}
.arwrap{position:relative;max-width:min(420px,max(250px,calc((100vh - 300px)*.75)));margin:8px auto 0;border-radius:16px;overflow:hidden;background:#111;box-shadow:var(--shadow)}.arwrap canvas{display:block;width:100%;height:auto;aspect-ratio:3/4;touch-action:none}
.argate{position:absolute;inset:0;overflow:auto;background:color-mix(in srgb,var(--card) 95%,transparent);color:var(--ink);padding:12px;-webkit-overflow-scrolling:touch}.argate .q{margin:8px 0;font-weight:700}.argate .opt{margin:6px 0;padding:9px 12px;font-size:14px}
.arpz{display:grid;place-items:center;text-align:center}
.arpad{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;max-width:420px;margin:10px auto 0}.arpad.two{grid-template-columns:1fr 1fr}
.arpad .padbtn{min-height:60px;font-size:22px;font-weight:900;touch-action:none;user-select:none;-webkit-user-select:none;color:#fff}
.padbtn.p0{background:#ff5c8a}.padbtn.p1{background:#e89a10}.padbtn.p2{background:#1fb7a1}.padbtn.p3{background:#5878f0}.padbtn.hit{transform:translateY(3px);filter:brightness(1.15)}
#wbar{position:sticky;top:var(--hh,56px);z-index:19;display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:8px 12px;background:var(--card);border-bottom:2px solid var(--pri);font-size:14px;font-weight:700;color:var(--ink)}#wbar .sp{flex:1;min-width:120px}#wbar a.wb{background:var(--pri);color:#06121f;text-decoration:none;border-radius:12px;padding:8px 14px;font-weight:700}#wbar button.x{background:transparent;color:var(--mut);padding:6px 10px}.wlink{display:inline-block;text-decoration:none;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#06121f;border-radius:12px;padding:10px 16px;font-weight:700}.sec-hl{outline:3px solid var(--warn);outline-offset:3px;border-radius:var(--r)}
#arlv button.on,#archr button.on{outline:3px solid var(--pri);outline-offset:1px}.archb{display:inline-flex;align-items:center;gap:6px;padding:4px 10px 4px 4px}

@media(max-width:520px){.mem{grid-template-columns:repeat(3,1fr)}.q{font-size:17px}}
#app{padding-bottom:110px}#cfab.sc{opacity:.3}

/* ============ v2 look: "vở ô ly" ============ */
@property --p{syntax:"<number>";inherits:false;initial-value:0}
:root{--bg:#0A0E1F;--grid:rgba(31,205,208,.055);--card:#1A1D26;--ink:#F5F0E8;--mut:#8A8FA8;--pri:#1FCDD0;--pri2:#7B5FC9;--sun:#E8C672;--line:#2B2F3A;--shadow:0 1px 0 rgba(255,255,255,.05),0 14px 34px -14px rgba(31,205,208,.4),0 6px 18px rgba(0,0,0,.5);--r:20px;--f:"Nunito",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
:root[data-theme=dark]{--bg:#0A0E1F;--grid:rgba(31,205,208,.055);--card:#1A1D26;--ink:#F5F0E8;--mut:#8A8FA8;--pri:#1FCDD0;--pri2:#7B5FC9;--sun:#E8C672;--line:#2B2F3A;--shadow:0 1px 0 rgba(255,255,255,.05),0 14px 34px -14px rgba(31,205,208,.4),0 6px 18px rgba(0,0,0,.5)}:root[data-theme=light]{--bg:#F6F3EC;--grid:rgba(14,159,159,.055);--card:#FFFFFF;--ink:#232347;--mut:#6B7280;--pri:#0E9F9F;--pri2:#7B5FC9;--sun:#D9A441;--line:#E4E0D4;--shadow:0 1px 0 rgba(255,255,255,.6),0 14px 34px -14px rgba(14,159,159,.4),0 6px 18px rgba(0,0,0,.08)}
body{font-family:var(--f);background-color:var(--bg);background-image:radial-gradient(1100px 480px at 50% -8%,rgba(31,205,208,.13),transparent 60%),radial-gradient(820px 520px at 96% 108%,rgba(123,95,201,.09),transparent 60%),radial-gradient(720px 440px at 3% 96%,rgba(232,198,114,.05),transparent 60%),linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:auto,auto,auto,28px 28px,28px 28px;background-attachment:fixed;padding-bottom:96px}
body::after{content:"";position:fixed;inset:0;z-index:120;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(160,220,255,.03) 0 1px,transparent 1px 4px)}
::selection{background:rgba(34,211,238,.45);color:#050816}
h2{font-weight:900;letter-spacing:-.01em}h3{font-weight:800}
:focus-visible{outline:3px solid #facc15;outline-offset:2px;border-radius:10px}
svg.i{width:1.15em;height:1.15em;flex:none;vertical-align:-.2em}
.card{border:1px solid color-mix(in srgb,var(--line) 75%,transparent)}
:root[data-theme=light] .card{background:var(--card);border-color:var(--line);box-shadow:var(--shadow)}
:root[data-theme=light] header.top{background:rgba(246,243,236,.94);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
button{border-radius:14px;box-shadow:0 3px 0 rgba(2,8,20,.55),0 6px 18px -6px rgba(34,211,238,.5);transition:transform .16s cubic-bezier(.3,1.6,.5,1),box-shadow .16s,filter .15s;font-weight:800}
button:active{transform:translateY(3px);box-shadow:0 0 0 rgba(0,0,0,.24)}
button.sec,button.gh,.opt,.io,.rd,button.back,button.stk{box-shadow:none}
button.sec:active,button.gh:active,.opt:active,.io:active,.rd:active,button.back:active,button.stk:active{transform:scale(.95)}
.opt{border-radius:14px;box-shadow:0 3px 0 var(--line)}.opt .letter{display:inline-block;min-width:1.2em;margin-right:8px;font-weight:700;color:var(--acc,#4f46e5)}.opt:active{transform:translateY(2px);box-shadow:0 1px 0 var(--line)}
.opt.right{box-shadow:0 3px 0 var(--ok)}.opt.wrong{box-shadow:0 3px 0 var(--bad)}
header.top{background:rgba(5,8,22,.86);-webkit-backdrop-filter:blur(14px) saturate(1.5);backdrop-filter:blur(14px) saturate(1.5);border-bottom:1px solid rgba(34,211,238,.35);box-shadow:0 8px 28px -12px rgba(34,211,238,.5),inset 0 -1px 0 rgba(34,211,238,.12)}
header.top h1{display:flex;align-items:center;gap:9px;font-weight:900;letter-spacing:-.01em}
header.top h1 .lg{width:30px;height:30px;border-radius:10px;background:var(--sun);color:#3b2a00;display:grid;place-items:center;flex:none;box-shadow:0 3px 0 #c98f00;transform:rotate(-6deg)}
header.top h1 .lg svg{width:19px;height:19px}
.chip{display:inline-flex;align-items:center;gap:5px;backdrop-filter:blur(6px)}.chip svg{width:15px;height:15px}
.chip .fl{color:#ffcf5a}.chip .st{color:#ffe08a}
nav.tabs{left:10px;right:10px;bottom:calc(10px + env(safe-area-inset-bottom));max-width:640px;margin:0 auto;border:1px solid color-mix(in srgb,var(--line) 80%,transparent);border-radius:28px;padding:6px;gap:2px;background:color-mix(in srgb,var(--card) 80%,transparent);-webkit-backdrop-filter:blur(18px) saturate(1.6);backdrop-filter:blur(18px) saturate(1.6);box-shadow:0 16px 36px -12px rgba(0,0,0,.55),0 0 24px -8px rgba(34,211,238,.35);justify-content:stretch}
nav.tabs a{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:7px 0 5px;border-radius:22px;transition:color .25s;min-width:0}
nav.tabs a svg{width:23px;height:23px;transition:transform .4s cubic-bezier(.3,1.8,.5,1)}
nav.tabs a span{font-size:11px;line-height:1.1;font-weight:800;transform:none!important;transition:none;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:0 1px}
nav.tabs a.on{color:#06121f}nav.tabs a.on svg{transform:translateY(-1px) scale(1.14)}nav.tabs a:not(.on):hover svg{transform:translateY(-2px)}
nav.tabs .ind{position:absolute;top:6px;bottom:6px;left:0;border-radius:22px;background:linear-gradient(135deg,var(--pri),var(--pri2));box-shadow:0 8px 18px -6px rgba(34,211,238,.6);transition:transform .5s cubic-bezier(.3,1.35,.4,1),width .3s;z-index:0}
#cfab{bottom:98px}
.bar{height:12px}.bar>i{background:linear-gradient(90deg,var(--c,var(--pri)),color-mix(in srgb,var(--c,var(--pri)) 55%,var(--pri2)))}
.ring{background:conic-gradient(var(--c,var(--pri)) calc(var(--p)*1%),var(--line) 0);animation:ringin 1.1s cubic-bezier(.2,.8,.2,1) both}
@keyframes ringin{from{--p:0}}
.ring i{font-weight:900}
.pill{font-weight:800}
.ibub{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;flex:none;background:color-mix(in srgb,var(--pri) 13%,var(--card));color:var(--pri);box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--pri) 25%,transparent)}
.ibub svg{width:26px;height:26px}.ibub.b2{background:color-mix(in srgb,#f59e0b 18%,var(--card));color:#fbbf24;box-shadow:inset 0 0 0 2px rgba(245,158,11,.35)}.ibub.b3{background:color-mix(in srgb,#14b8a6 16%,var(--card));color:#5eead4;box-shadow:inset 0 0 0 2px rgba(20,184,166,.35)}
.hero{--c:var(--pri);position:relative;overflow:hidden;border-radius:26px;padding:16px 18px 18px;color:var(--ink);background:linear-gradient(165deg,rgba(17,25,52,.94),rgba(8,12,28,.8));border:1px solid color-mix(in srgb,var(--c) 55%,transparent);margin-bottom:14px;box-shadow:0 0 30px -8px color-mix(in srgb,var(--c) 65%,transparent),0 18px 34px -18px rgba(0,0,0,.7),inset 0 0 34px color-mix(in srgb,var(--c) 7%,transparent)}
.hero .wm{position:absolute;right:-18px;bottom:-26px;width:170px;height:170px;opacity:.15;stroke-width:1.1;pointer-events:none;color:var(--c)}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 12% -10%,color-mix(in srgb,var(--c) 26%,transparent),transparent 46%),repeating-linear-gradient(0deg,rgba(160,220,255,.05) 0 1px,transparent 1px 4px);pointer-events:none}
.hero h2{color:var(--ink);margin:10px 0 10px;font-size:25px;line-height:1.18;position:relative;z-index:1;text-shadow:0 0 18px color-mix(in srgb,var(--c) 55%,transparent)}
.hero .meta{display:flex;flex-wrap:wrap;gap:6px;position:relative;z-index:1}.hero .meta span{background:color-mix(in srgb,var(--c) 14%,transparent);border:1px solid color-mix(in srgb,var(--c) 42%,transparent);border-radius:99px;padding:3px 11px;font-size:12.5px;font-weight:800;color:var(--ink)}
button.back{background:color-mix(in srgb,var(--c,var(--pri)) 14%,transparent);color:var(--ink);border:1px solid color-mix(in srgb,var(--c,var(--pri)) 45%,transparent);padding:7px 12px;position:relative;z-index:1;display:inline-flex;align-items:center;gap:6px}
.hero .hrow{display:flex;align-items:center;gap:14px;position:relative;z-index:1}.hero .av{font-size:50px;background:color-mix(in srgb,var(--c) 16%,transparent);border:1px solid color-mix(in srgb,var(--c) 45%,transparent);border-radius:22px;width:76px;height:76px;display:grid;place-items:center;flex:none;transform:rotate(-4deg)}
.hero .hrow h2{margin:0 0 4px}.hero .lvl{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-weight:800;font-size:14px}.hero .lvl svg{width:16px;height:16px}
.hero .bar{background:color-mix(in srgb,var(--c) 18%,transparent);margin-top:14px;position:relative;z-index:1}.hero .bar>i{background:var(--sun)!important}
.hero button.gh{background:color-mix(in srgb,var(--c) 12%,transparent);color:var(--ink);border:1px solid color-mix(in srgb,var(--c) 40%,transparent);box-shadow:none;align-self:flex-start}
.card.cover{--c:var(--pri);position:relative;display:flex;align-items:center;gap:13px;padding:14px 14px 14px 30px;cursor:pointer;overflow:hidden;border:1px solid color-mix(in srgb,var(--c) 55%,transparent);border-radius:6px 22px 22px 6px;background:linear-gradient(180deg,color-mix(in srgb,var(--c) 13%,rgba(13,20,44,.92)),rgba(9,13,30,.8));box-shadow:0 0 22px -8px color-mix(in srgb,var(--c) 60%,transparent),inset 0 1px 0 rgba(255,255,255,.05);transition:transform .3s cubic-bezier(.3,1.6,.5,1),box-shadow .3s}
.card.cover::before{content:"";position:absolute;left:0;top:0;bottom:0;width:16px;background:var(--c)}
.card.cover::after{content:"";position:absolute;left:6px;top:10px;bottom:10px;width:4px;background:radial-gradient(circle,rgba(255,255,255,.85) 1.7px,transparent 2.2px) 0 0/4px 15px repeat-y}
.card.cover:hover{transform:translateY(-4px) rotate(-.7deg);box-shadow:0 18px 28px -14px var(--c)}
.card.cover:active{transform:scale(.97)}
.cover .ic{width:56px;height:56px;border-radius:17px;background:color-mix(in srgb,var(--c) 16%,transparent);color:var(--c);display:grid;place-items:center;flex:none;box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--c) 55%,transparent),0 0 14px -4px color-mix(in srgb,var(--c) 70%,transparent)}
.cover .ic svg{width:30px;height:30px}
.cover b{font-weight:900;font-size:16px;line-height:1.2;display:block}
.road{display:flex;padding:14px 8px 12px}
.road .st{flex:1;display:flex;flex-direction:column;align-items:center;gap:5px;font-size:11.5px;font-weight:800;color:var(--mut);position:relative;text-align:center}
.road .st::before{content:"";position:absolute;top:15px;right:50%;width:100%;height:5px;border-radius:9px;background:var(--line)}
.road .st:first-child::before{display:none}.road .st.d::before{background:var(--c)}
.road .dot{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--card);border:3px solid var(--line);position:relative;z-index:1}
.road .dot svg{width:17px;height:17px}
.road .st.d{color:var(--ink)}.road .st.d .dot{background:var(--c);border-color:var(--c);color:#fff;box-shadow:0 4px 0 color-mix(in srgb,var(--c) 55%,#000)}
.chain{list-style:none;margin:0;padding:0}
.chain li{position:relative;padding:3px 0 16px 46px;margin:0;line-height:1.5}
.chain li:last-child{padding-bottom:2px}
.chain li::before{content:"";position:absolute;left:15px;top:36px;bottom:2px;width:3px;background:repeating-linear-gradient(var(--c,var(--pri)) 0 5px,transparent 5px 10px);opacity:.55}
.chain li:last-child::before{display:none}
.chain li>i{position:absolute;left:0;top:0;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:color-mix(in srgb,var(--c,var(--pri)) 15%,var(--card));color:var(--c,var(--pri));box-shadow:inset 0 0 0 2px var(--c,var(--pri))}
.chain li>i svg{width:17px;height:17px}
.stks{display:flex;flex-wrap:wrap;gap:8px;margin:2px 0 12px}
button.stk{--rt:-1.5deg;background:#fff3c4;color:#4a3600;border-radius:10px;padding:6px 11px;font-size:14px;font-weight:800;transform:rotate(var(--rt));box-shadow:0 2px 0 #e6b92e;border:0}
button.stk:nth-child(2n){--rt:1.6deg;background:#d9f5ee;color:#064e46;box-shadow:0 2px 0 #5ec8b4}
button.stk:nth-child(3n){--rt:-.6deg;background:#ffe0ea;color:#6b1230;box-shadow:0 2px 0 #f08aa9}
button.stk:hover{transform:rotate(0) translateY(-2px)}button.stk.on{outline:3px solid var(--c,var(--pri));outline-offset:1px}
#tdef{min-height:0;font-size:14.5px;margin:-2px 0 10px;padding:0 2px}#tdef b{font-weight:900}
#vizc{border:2px solid color-mix(in srgb,var(--c,var(--pri)) 45%,transparent);background:linear-gradient(180deg,color-mix(in srgb,var(--c,var(--pri)) 9%,var(--card)),var(--card))}
#vizc h3{display:flex;align-items:center;gap:9px;font-size:17px}
#vizc h3 .pl{width:30px;height:30px;border-radius:50%;background:var(--c,var(--pri));color:#fff;display:grid;place-items:center;flex:none;animation:pulse 2.6s ease-out infinite}
#vizc h3 .pl svg{width:15px;height:15px;margin-left:2px}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--c,var(--pri)) 55%,transparent)}70%,100%{box-shadow:0 0 0 12px transparent}}
.lrow{padding:10px 0;border-top:1px solid var(--line);cursor:pointer;transition:background .2s}
.lrow:hover{background:color-mix(in srgb,var(--c,var(--pri)) 7%,transparent)}
.lst{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;flex:none;background:var(--line);color:var(--mut)}.lst svg{width:17px;height:17px}
.lst.h{background:color-mix(in srgb,var(--c,var(--pri)) 18%,var(--card));color:var(--c,var(--pri))}.lst.d{background:var(--ok);color:#fff}
.fc .b{background:linear-gradient(135deg,var(--c,var(--pri)),var(--pri2))}
#app.enter>*{animation:rise .5s cubic-bezier(.2,.8,.2,1) both;animation-delay:calc(var(--i,0)*45ms)}
@keyframes rise{from{opacity:.25;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}
.hero{position:relative}.hero #sw{position:absolute;top:12px;right:12px;padding:5px 11px;font-size:12px;z-index:2}.hero .hrow .sp{padding-right:0}.hero .hrow{padding-top:30px}.hero .hrow h2{font-size:22px}
nav.tabs a{flex:1 1 0}nav.tabs a.on{flex:1.55 1 0}
@media(max-width:400px){#hx .st{display:none}}
@media(max-width:480px){header.top h1 .lg{display:none}#hx .xpw{display:none}#hx .av2{display:none}header.top{gap:8px;padding:10px 12px}header.top h1{font-size:16px}.chip{padding:4px 9px}}
@media(max-width:380px){nav.tabs a span{font-size:10px}}
.bub-area{position:relative;height:320px;overflow:hidden;border-radius:16px;margin-top:8px;background:radial-gradient(120% 100% at 50% 0%,#0c1638 0%,#050816 70%);border:1px solid rgba(34,211,238,.25)}
.bub{position:absolute;max-width:46%;min-height:48px;border:0;border-radius:999px;padding:10px 14px;font-weight:700;font-size:14px;line-height:1.25;color:#10213a;box-shadow:inset 0 -4px 0 #0002,0 2px 6px #0003;cursor:pointer}
.bub.c0{background:#fde68a}.bub.c1{background:#a7f3d0}.bub.c2{background:#fbcfe8}.bub.c3{background:#c7d2fe}.bub.c4{background:#fed7aa}
.bub.pop{animation:bpop .35s forwards}.bub.bad{background:#fecaca;animation:shake .4s}
@keyframes bpop{to{transform:scale(1.35);opacity:0}}
.fbk{margin-top:8px;padding:10px 12px;border-radius:12px;background:rgba(250,204,21,.08);color:#fde68a;border:2px solid rgba(250,204,21,.45);box-shadow:0 0 18px -6px rgba(250,204,21,.5);font-size:14px}
.race{display:grid;gap:10px}.lane{display:grid;grid-template-columns:auto 1fr;gap:8px;align-items:center}.who{font-size:13px;font-weight:700;min-width:84px}
.trk{position:relative;height:20px;border-radius:99px;background:var(--line)}.trk>i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#22c55e,#16a34a);transition:width .35s}.trk.bot>i{background:linear-gradient(90deg,#f59e0b,#ef4444)}
.trk>b{position:absolute;top:-8px;font-size:24px;transform:translateX(-50%);transition:left .35s}
.lkgrid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.lkgrid>div{display:grid;gap:8px;align-content:start}
.lk{min-height:52px;border-radius:12px;border:2px solid var(--line);background:var(--card);color:var(--ink);padding:8px 10px;font-size:13px;font-weight:700;text-align:left}
.lk.on{border-color:var(--pri);box-shadow:0 0 0 3px rgba(34,211,238,.35),0 0 16px rgba(34,211,238,.35)}.lk.shake{animation:shake .4s}.lk.done{opacity:.9}
.lk.c0{background:#fde68a;color:#10213a}.lk.c1{background:#a7f3d0;color:#10213a}.lk.c2{background:#fbcfe8;color:#10213a}.lk.c3{background:#c7d2fe;color:#10213a}.lk.c4{background:#fed7aa;color:#10213a}.lk.c5{background:#bae6fd;color:#10213a}
.chipbtn{min-height:44px;min-width:44px;background:var(--card);color:var(--ink);border:2px solid var(--line);border-radius:99px;padding:2px 10px;font-size:12px;font-weight:700;box-shadow:none;cursor:pointer}
@media (max-width:480px){.chipbtn .jc-lbl{display:none}.chipbtn{padding:4px 9px;font-size:14px}}
#csheet.min{height:auto;bottom:76px;border-radius:16px}#csheet.min>:not(:first-child){display:none}#csheet.max{height:100dvh;max-width:none;border-radius:0}
/* Hint 3 bước đẹp */
.hint-steps{margin:10px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px}
.hint-steps li{display:flex;gap:10px;align-items:flex-start;background:rgba(253,224,71,.07);border:1px solid rgba(253,224,71,.28);border-radius:12px;padding:10px 12px;line-height:1.6}
.hint-steps .hs-n{flex:none;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#fde047,#facc15);color:#241a02;font-weight:800;display:grid;place-items:center;font-size:14px}
/* ============ Virtual Idol hologram: tươi, neon, scanlines ============ */
.subj{border-radius:26px;border:3px solid transparent;background:linear-gradient(var(--card),var(--card)) padding-box,linear-gradient(135deg,var(--c,var(--pri)),color-mix(in srgb,var(--c,var(--pri)) 55%,var(--pri2))) border-box;transition:transform .18s cubic-bezier(.34,1.56,.64,1),box-shadow .18s}
.subj:hover{transform:translateY(-6px) rotate(-.6deg) scale(1.02);box-shadow:0 14px 28px -10px color-mix(in srgb,var(--c,var(--pri)) 55%,transparent)}
.subj:active{transform:scale(.96)}
.subj .ic{font-size:40px;filter:drop-shadow(0 3px 4px rgba(0,0,0,.15))}
button:active{transform:scale(.94)}
.mascot3d{position:absolute;right:6px;top:6px;width:110px;height:110px;z-index:1;pointer-events:none;filter:drop-shadow(0 8px 14px rgba(0,0,0,.3));animation:float 3s ease-in-out infinite}
.mascot3d img{width:100%!important;height:100%!important;object-fit:cover;display:block}
.hero:has(.mascot3d) h2{padding-right:112px}.hero:has(.mascot3d) .meta{padding-right:112px}
/* ============ Virtual Idol: hologram portrait (neon frame + glow + scanlines) ============ */
.vi-portrait{position:relative;border-radius:18px;overflow:hidden;flex:none;border:2px solid rgba(31,205,208,.75);background:radial-gradient(circle at 50% 28%,rgba(31,205,208,.22),rgba(10,14,31,.94) 72%);box-shadow:0 0 16px rgba(31,205,208,.55),0 0 44px rgba(123,95,201,.28),inset 0 0 26px rgba(31,205,208,.14)}
.vi-portrait img{display:block;width:100%;height:100%;object-fit:cover;object-position:top center;filter:saturate(1.12) contrast(1.06)}
.vi-portrait::after{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(180,230,255,.09) 0 2px,transparent 2px 5px)}
.vi-portrait::before{content:"";position:absolute;left:0;right:0;top:-45%;height:40%;pointer-events:none;background:linear-gradient(180deg,transparent,rgba(34,211,238,.32),transparent);animation:holoScan 3.4s linear infinite}
@keyframes holoScan{to{top:115%}}
.vi-float{position:fixed;z-index:60;cursor:grab;touch-action:none;filter:drop-shadow(0 10px 18px rgba(0,0,0,.5));animation:float 3.2s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){.vi-portrait::before{animation:none}}
.msg.a{border:2px solid var(--line)}
#cfab{transition:transform .2s cubic-bezier(.34,1.56,.64,1)}#cfab:hover{transform:scale(1.12) rotate(-6deg)}
.lv-badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:.75rem;font-weight:700;margin-left:8px}
.lv1{background:#dcfce7;color:#166534}.lv2{background:#fef9c3;color:#854d0e}.lv3{background:#fee2e2;color:#991b1b}