/* Layout: thanh điều hướng trái (máy tính) / thanh tab dưới (điện thoại); nội dung là các "tờ" giấy trắng trên nền bàn chấm xám xanh; đỏ bút chấm làm điểm nhấn, xanh mực cho dữ liệu */
:root{
  --bg:#eceeed; --paper:#ffffff; --ink:#1c2320; --muted:#5b6661; --faint:#8b9590; --line:#d6dcd9; --chip:#f2f4f3;
  --side:#2f3a36; --side-ink:#e9eeec; --side-muted:#a9b6b1;
  --accent:#c8312a; --accent-ink:#ffffff; --accent-soft:#fbe7e5;
  --data:#2b6cb0; --data-soft:#dce8f5; --grid:#e6eae8;
  --ok:#1f7a4a; --ok-bg:#e1f2e8; --bad:#b4271f; --bad-bg:#fbe4e2; --warn:#8a5a00; --warn-bg:#fff1d2; --key:#1f5fae;
  --f-body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --r:10px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#121715; --paper:#1b2220; --ink:#e6ebe9; --muted:#9ba7a2; --faint:#76827d; --line:#2f3a36; --chip:#242d2a;
  --side:#0d1110; --side-ink:#e6ebe9; --side-muted:#8a9792;
  --accent:#ff6b5e; --accent-ink:#1b0c0a; --accent-soft:#3a1c19;
  --data:#6ea8ff; --data-soft:#1d2d44; --grid:#26302c;
  --ok:#5fd394; --ok-bg:#15301f; --bad:#ff8077; --bad-bg:#3a1a17; --warn:#ffcc66; --warn-bg:#3a2e12; --key:#7fb2ff;
  color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#121715; --paper:#1b2220; --ink:#e6ebe9; --muted:#9ba7a2; --faint:#76827d; --line:#2f3a36; --chip:#242d2a;
  --side:#0d1110; --side-ink:#e6ebe9; --side-muted:#8a9792;
  --accent:#ff6b5e; --accent-ink:#1b0c0a; --accent-soft:#3a1c19;
  --data:#6ea8ff; --data-soft:#1d2d44; --grid:#26302c;
  --ok:#5fd394; --ok-bg:#15301f; --bad:#ff8077; --bad-bg:#3a1a17; --warn:#ffcc66; --warn-bg:#3a2e12; --key:#7fb2ff;
  color-scheme:dark}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--ink);font:15px/1.5 var(--f-body);-webkit-tap-highlight-color:transparent}
a{color:inherit}
h1{font-size:22px;line-height:1.25;margin:0;font-weight:800;letter-spacing:-.015em;text-wrap:balance}
h2{font-size:16px;margin:0;font-weight:700;text-wrap:balance}
h3{font-size:12px;margin:0;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
p{margin:0}
.mono,.num{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.muted{color:var(--muted)} .small{font-size:13px} .tiny{font-size:12px}

/* ---- Khung ---- */
.shell{display:flex;min-height:100%}
.side{position:sticky;top:0;height:100vh;width:224px;flex:none;background:var(--side);color:var(--side-ink);display:flex;flex-direction:column;padding:calc(16px + env(safe-area-inset-top,0px)) 12px 16px max(12px,env(safe-area-inset-left,0px))}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:600;font-size:16px;padding:4px 8px 20px}
.logo b{color:var(--accent)}
.logo-mark{display:grid;grid-template-columns:repeat(2,9px);gap:3px}
.logo-mark i{width:9px;height:9px;border-radius:50%;border:1.5px solid var(--side-muted)}
.logo-mark i.on{background:var(--accent);border-color:var(--accent)}
.nav{display:flex;flex-direction:column;gap:2px}
.nav a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:8px;text-decoration:none;color:var(--side-muted);font-weight:600;font-size:14px}
.nav a svg{width:20px;height:20px;fill:currentColor;flex:none}
.nav a:hover{color:var(--side-ink);background:rgba(255,255,255,.06)}
.nav a.on{color:var(--side-ink);background:rgba(255,255,255,.1)}
.nav a.on svg{color:var(--accent)}
.side-foot{margin-top:auto;font-size:12px;color:var(--side-muted);padding:8px 12px}
.main{flex:1;min-width:0;padding-block:24px 64px;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px));display:flex;flex-direction:column;gap:16px;width:100%;max-width:1760px;outline:none}
@media (max-width:860px){
  .shell{display:block}
  .side{position:fixed;inset:auto 0 0 0;height:auto;width:auto;z-index:30;flex-direction:row;padding:4px max(4px,env(safe-area-inset-right,0px)) calc(4px + env(safe-area-inset-bottom,0px)) max(4px,env(safe-area-inset-left,0px));border-top:1px solid rgba(255,255,255,.08)}
  .logo,.side-foot{display:none}
  .nav{flex-direction:row;flex:1;justify-content:space-around;gap:0}
  .nav a{flex-direction:column;gap:2px;padding:6px 4px;font-size:11px;flex:1;text-align:center}
  .nav a.on{background:none}
  .main{padding-top:calc(16px + env(safe-area-inset-top,0px));padding-bottom:calc(96px + env(safe-area-inset-bottom,0px));padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
}

/* ---- Thành phần ---- */
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap}
.page-head .sub{color:var(--muted);font-size:14px;margin-top:2px}
.crumb{font-size:13px;color:var(--muted);text-decoration:none;display:inline-flex;gap:4px;align-items:center;margin-bottom:4px}
.crumb:hover{color:var(--ink)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:16px;display:flex;flex-direction:column;gap:12px;min-width:0}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.grid{display:grid;gap:16px;grid-template-columns:minmax(0,1fr)}
@media (min-width:760px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
/* Hai cột: nội dung bên trái, ảnh phiếu bên phải (màn hình rộng) */
.split{display:grid;gap:16px;grid-template-columns:minmax(0,1fr);align-items:start}
@media (min-width:1280px){.split{grid-template-columns:minmax(0,1fr) minmax(0,1.15fr)}.split>.sticky{position:sticky;top:16px}}
.grid-3{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr))}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.stack{display:flex;flex-direction:column;gap:8px}
.sp{flex:1}

.btn{appearance:none;border:1px solid var(--line);background:var(--paper);color:var(--ink);font:600 14px var(--f-body);padding:9px 14px;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;gap:8px;justify-content:center;text-decoration:none;white-space:nowrap}
.btn:hover{background:var(--chip)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.06)}
.btn.big{padding:16px 18px;font-size:16px;flex:1 1 200px}
.btn.sm{padding:6px 10px;font-size:13px}
.btn.ghost{border-color:transparent;background:transparent}
.btn.danger{color:var(--bad)}
.btn:disabled{opacity:.5;cursor:default}
.btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.chip:focus-visible,[tabindex]:focus-visible,a:focus-visible{outline:2px solid var(--key);outline-offset:2px}
input[type=text],input[type=email],input[type=tel],input[type=number],input[type=date],input[type=search],input[type=password],select,textarea{font:500 15px var(--f-body);color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:9px 10px;min-width:0;width:100%}
textarea{font:12px/1.45 var(--f-mono);min-height:140px}
label.f{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);font-weight:600;min-width:0}
.form-grid{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(min(100%,180px),1fr))}
.file-hidden{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.check{display:flex;gap:8px;align-items:center;font-size:14px}

.kpis{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(min(100%,150px),1fr))}
.kpi{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;display:flex;flex-direction:column;gap:2px;min-width:0}
.kpi span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.kpi b{font:600 26px/1.15 var(--f-mono);font-variant-numeric:tabular-nums}
.kpi small{color:var(--muted);font-size:12px}
.kpi.hl b{color:var(--accent)}

.pill{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;padding:2px 8px;border-radius:99px;background:var(--chip);color:var(--muted);white-space:nowrap}
.pill.ok{background:var(--ok-bg);color:var(--ok)} .pill.bad{background:var(--bad-bg);color:var(--bad)} .pill.warn{background:var(--warn-bg);color:var(--warn)} .pill.info{background:var(--data-soft);color:var(--data)}
.pill.t-gioi{background:var(--ok-bg);color:var(--ok)} .pill.t-kha{background:var(--data-soft);color:var(--data)} .pill.t-tb{background:var(--chip);color:var(--ink)} .pill.t-yeu{background:var(--warn-bg);color:var(--warn)} .pill.t-kem{background:var(--bad-bg);color:var(--bad)}
.alert{border-radius:8px;padding:10px 12px;font-size:14px;background:var(--warn-bg);color:var(--warn)}
.alert.err{background:var(--bad-bg);color:var(--bad)} .alert.info{background:var(--data-soft);color:var(--data)} .alert.ok{background:var(--ok-bg);color:var(--ok)}
.alert ul{margin:4px 0 0;padding-left:18px}
.confirm{display:flex;gap:8px;align-items:center;flex-wrap:wrap;background:var(--bad-bg);color:var(--bad);border-radius:8px;padding:8px 10px;font-size:14px}

.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);overflow-x:auto}
.tabs a{padding:10px 14px;text-decoration:none;color:var(--muted);font-weight:600;font-size:14px;border-bottom:3px solid transparent;white-space:nowrap}
.tabs a.on{color:var(--ink);border-bottom-color:var(--accent)}

.tbl-wrap{overflow-x:auto;margin:0 -16px;padding:0 16px}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;vertical-align:middle}
th{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600;position:sticky;top:0;background:var(--paper)}
th.sortable{cursor:pointer;user-select:none} th.sortable:hover{color:var(--ink)}
td.r,th.r{text-align:right}
tr.click{cursor:pointer} tr.click:hover td{background:var(--chip)}
td .name{font-weight:600}
.empty{padding:28px 16px;text-align:center;color:var(--muted);display:flex;flex-direction:column;gap:10px;align-items:center}

.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip-f{appearance:none;border:1px solid var(--line);background:var(--paper);color:var(--muted);font:600 13px var(--f-body);padding:5px 12px;border-radius:99px;cursor:pointer}
.chip-f[aria-pressed="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* Bảng chọn đáp án (ô tròn như trên phiếu) */
.key-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:6px 12px}
.key-row{display:flex;align-items:center;gap:6px}
.key-row .n{font-family:var(--f-mono);width:28px;color:var(--muted);font-size:13px;text-align:right}
.chip{appearance:none;width:32px;height:32px;border-radius:50%;border:1.5px solid var(--muted);background:transparent;color:var(--ink);font:600 12px var(--f-body);cursor:pointer;padding:0;flex:none}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.chip.k{box-shadow:0 0 0 2px var(--ok)}
.p2-edit{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.p3-edit{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px}

/* Kết quả chấm */
.score-head{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.score-big{font:600 56px/1 var(--f-mono);color:var(--accent);letter-spacing:-.03em}
.score-big small{font-size:18px;color:var(--muted);letter-spacing:0;margin-left:4px}
.meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:8px;flex:1 1 320px;min-width:0}
.meta div{background:var(--chip);border-radius:8px;padding:8px 10px;min-width:0}
.meta b{display:block;font:600 16px var(--f-mono);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.meta span{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.q-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:6px}
.q{border-radius:8px;padding:6px 8px;background:var(--chip);font:13px var(--f-mono);display:flex;justify-content:space-between;gap:6px;align-items:center}
.q.ok{background:var(--ok-bg);color:var(--ok)} .q.bad{background:var(--bad-bg);color:var(--bad)}
.q .n{opacity:.7}
.q select,.q input{font:600 13px var(--f-mono);padding:2px 4px;border-radius:6px;width:auto;max-width:90px;background:var(--paper);color:var(--ink);border:1px solid var(--line)}
.p2grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:8px}
.p2c{background:var(--chip);border-radius:8px;padding:8px 10px;font:13px var(--f-mono);display:flex;flex-direction:column;gap:3px}
.p2c .h{display:flex;justify-content:space-between;font-family:var(--f-body);font-weight:600}
.p2c select{font:600 13px var(--f-mono);padding:1px 4px;border-radius:6px;width:auto;background:var(--paper);color:var(--ink);border:1px solid var(--line)}
.ok-t{color:var(--ok)} .bad-t{color:var(--bad)}
.canvas-box{overflow:auto;border:1px solid var(--line);border-radius:8px;background:#fff}
.canvas-box{display:flex;justify-content:center}
.canvas-box canvas{display:block;width:100%;height:auto;max-height:calc(100vh - 170px);object-fit:contain;cursor:zoom-in}
.canvas-box.zoom{justify-content:flex-start}
.canvas-box.zoom canvas{width:auto;min-width:1100px;max-height:none;cursor:zoom-out}
.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:4px;vertical-align:-1px}
.queue{display:flex;flex-direction:column}
.queue a{display:flex;gap:10px;align-items:center;padding:10px 4px;border-bottom:1px solid var(--line);text-decoration:none}
.queue a:last-child{border-bottom:0}
.queue .sc{font:600 18px var(--f-mono);min-width:56px;text-align:right}
.queue .who{flex:1;min-width:0}
.queue .who b{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.thumb{max-height:180px;border-radius:8px;border:1px solid var(--line);align-self:flex-start;max-width:100%}
.tips{margin:0;padding-left:18px;color:var(--muted);font-size:13px;display:grid;gap:2px}

/* Thẻ kỳ thi */
.exam-card{display:flex;flex-direction:column;gap:10px;text-decoration:none}
.exam-card:hover{border-color:var(--faint)}
.exam-card .t{font-weight:700;font-size:16px}
.exam-card .stats{display:flex;gap:16px;flex-wrap:wrap}
.exam-card .stats div{display:flex;flex-direction:column}
.exam-card .stats b{font:600 18px var(--f-mono)}
.exam-card .stats span{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.tierbar{display:flex;height:8px;border-radius:4px;overflow:hidden;gap:2px;background:var(--chip)}
.tierbar i{display:block;height:100%}
.tierbar .t-gioi{background:var(--ok)} .tierbar .t-kha{background:var(--data)} .tierbar .t-tb{background:var(--faint)} .tierbar .t-yeu{background:var(--warn)} .tierbar .t-kem{background:var(--bad)}

/* Biểu đồ */
.chart-box{overflow-x:auto}
.chart{width:100%;height:auto;max-height:280px;display:block;margin:0 auto;font-family:var(--f-mono)}
.chart .grid{stroke:var(--grid);stroke-width:1}
.chart .base{stroke:var(--faint);stroke-width:1}
.chart .ax{fill:var(--muted);font-size:12px}
.chart .val{fill:var(--ink);font-size:12px;font-weight:600}
.chart .mark{fill:var(--data)}
.chart .bar.hl .mark{fill:var(--accent)}
.chart .bar:hover .mark,.chart .bar:focus .mark{filter:brightness(1.15)}
.chart .hit{fill:transparent}
.chart .line{fill:none;stroke:var(--data);stroke-width:2;stroke-linejoin:round}
.chart .area{fill:var(--data);opacity:.1}
.chart .dot{fill:var(--data);stroke:var(--paper);stroke-width:2}
.chart .dot.last{fill:var(--accent)}
.chart g:focus{outline:none}
.chart-tip{position:fixed;z-index:50;background:var(--ink);color:var(--paper);font-size:12px;padding:6px 9px;border-radius:6px;pointer-events:none;max-width:260px;line-height:1.4}
.barlist{display:flex;flex-direction:column;gap:6px}
.bl-row{display:grid;grid-template-columns:minmax(64px,120px) 1fr auto;gap:10px;align-items:center;font-size:13px;border-radius:6px;padding:2px 0}
.bl-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink)}
.bl-track{height:10px;background:var(--chip);border-radius:5px;overflow:hidden}
.bl-fill{display:block;height:100%;background:var(--data);border-radius:5px}
.bl-row.t-gioi .bl-fill{background:var(--ok)} .bl-row.t-kha .bl-fill{background:var(--data)} .bl-row.t-tb .bl-fill{background:var(--faint)} .bl-row.t-yeu .bl-fill{background:var(--warn)} .bl-row.t-kem .bl-fill{background:var(--bad)}
.bl-row.low .bl-fill{background:var(--bad)} .bl-row.mid .bl-fill{background:var(--warn)}
.bl-val{font:600 13px var(--f-mono);min-width:48px;text-align:right}
.bl-val small{color:var(--muted);font-weight:500}
.item-tbl td{padding:6px 8px}
.dist{display:flex;gap:4px}
.dist span{font:12px var(--f-mono);padding:1px 6px;border-radius:4px;background:var(--chip);color:var(--muted);min-width:44px;text-align:center}
.dist span.k{background:var(--ok-bg);color:var(--ok);font-weight:600}
.dist span.top{outline:1.5px solid var(--bad)}
.pct{display:flex;align-items:center;gap:8px;min-width:150px}
.pct .bl-track{flex:1;min-width:60px}

.spinner{width:18px;height:18px;border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:sp .8s linear infinite;flex:none}
@keyframes sp{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spinner{animation-duration:3s}}
.loading{display:flex;gap:10px;align-items:center;color:var(--muted);padding:24px 0}
.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:8px;font-size:14px;z-index:60;max-width:calc(100% - 32px)}
@media (max-width:860px){.toast{bottom:calc(84px + env(safe-area-inset-bottom,0px))}}
.steps{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));counter-reset:s}
.steps div{background:var(--chip);border-radius:8px;padding:12px;display:flex;flex-direction:column;gap:6px;font-size:14px}
.steps b::before{counter-increment:s;content:counter(s) ". ";color:var(--accent)}
.sample-tag{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:var(--warn-bg);color:var(--warn);padding:2px 6px;border-radius:4px;vertical-align:2px}

@media (max-width:860px){.tabs a{padding:10px 8px;font-size:13px}}
.zoom-hint{font-size:12px;color:var(--muted)}

/* ---- Quét liên tục (giao diện camera, luôn nền tối) ---- */
.live{position:fixed;inset:0;z-index:100;background:#000;color:#fff;overflow:hidden}
.live video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.live canvas.ov{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.live-top{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:calc(12px + env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) 24px max(16px,env(safe-area-inset-left,0px));
  background:linear-gradient(rgba(0,0,0,.7),rgba(0,0,0,0))}
.live-title{display:flex;flex-direction:column;min-width:0}
.live-title b{font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.live-title span{font:600 13px var(--f-mono);color:#cfd8d4}
.live-x{appearance:none;border:0;background:#fff;color:#111;font:700 15px var(--f-body);padding:9px 18px;border-radius:99px;cursor:pointer}
.live-bottom{position:absolute;left:0;right:0;bottom:0;display:flex;flex-direction:column;gap:10px;
  padding:32px max(16px,env(safe-area-inset-right,0px)) calc(16px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));
  background:linear-gradient(rgba(0,0,0,0),rgba(0,0,0,.8) 40%)}
.live-status{font-size:15px;font-weight:600;padding:10px 14px;border-radius:10px;background:rgba(255,255,255,.14);line-height:1.4}
.live-status.ok{background:#1f9d55} .live-status.warn{background:#a86a00} .live-status.err{background:#b4271f} .live-status.busy{background:rgba(255,255,255,.25)}
.live-last{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none}
.live-chip{display:flex;gap:6px;align-items:baseline;flex:none;background:rgba(255,255,255,.14);color:#fff;text-decoration:none;padding:5px 10px;border-radius:99px;font-size:13px;max-width:220px}
.live-chip b{font-family:var(--f-mono)} .live-chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.live-chip.warn{box-shadow:inset 0 0 0 1.5px #ffcc66}
.live-ctrl{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}
.live-tog{appearance:none;justify-self:start;display:inline-flex;gap:8px;align-items:center;font:600 14px var(--f-body);color:#fff;background:rgba(255,255,255,.14);border:0;padding:9px 14px;border-radius:99px;cursor:pointer}
#lv-torch{justify-self:end} .live-tog.on{background:#fff;color:#111}
.live-shot{appearance:none;width:68px;height:68px;border-radius:50%;background:#fff;border:5px solid rgba(255,255,255,.4);background-clip:padding-box;cursor:pointer}
.live-shot:active{transform:scale(.94)}
.live-shot.ready{border-color:#2ecc71;box-shadow:0 0 0 3px rgba(46,204,113,.35)}
.live-status.ready{background:rgba(46,204,113,.85)}
.live-seg{justify-self:start;display:inline-flex;background:rgba(255,255,255,.14);border-radius:99px;padding:3px}
.live-seg button{appearance:none;border:0;background:transparent;color:#fff;font:600 13px var(--f-body);padding:8px 12px;border-radius:99px;cursor:pointer;white-space:nowrap}
.live-seg button[aria-pressed="true"]{background:#fff;color:#111}

/* ---- Đăng nhập / tài khoản ---- */
body.guest .side{display:none}
body.guest .main{max-width:none;align-items:center;justify-content:center;min-height:100vh}
.auth{width:100%;max-width:440px;display:flex;flex-direction:column;gap:20px;padding-block:24px}
.auth-brand{display:flex;gap:14px;align-items:center}
.auth-brand h1 b{color:var(--accent)}
.auth-brand .logo-mark{grid-template-columns:repeat(2,14px);gap:4px}
.auth-brand .logo-mark i{width:14px;height:14px;border-color:var(--faint)}
.auth-card{gap:14px;padding:20px}
.auth-tabs{margin-top:-4px}
.auth-tabs a{flex:1;text-align:center}
.ubox{display:flex;flex-direction:column;gap:2px;min-width:0}
.ubox b{color:var(--side-ink);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ubox span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ubox .btn{align-self:flex-start;color:var(--side-muted);padding:4px 0;margin-top:4px}
.ubox .btn:hover{color:var(--side-ink);background:none}
@media (max-width:860px){.nav .nav-desktop{display:none}}
details summary{color:var(--ink)}

/* ---- Gọn gàng: thông tin phụ thu gọn, ẩn bớt cột trên điện thoại ---- */
.score-head{align-items:center}
.score-info{display:flex;flex-direction:column;gap:4px;min-width:0}
.score-name{font-size:18px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
details.more>summary{cursor:pointer;font-weight:600;font-size:14px;list-style:none;display:flex;align-items:center;gap:8px;padding:2px 0}
details.more>summary::-webkit-details-marker{display:none}
details.more>summary::before{content:"";width:8px;height:8px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(-45deg);transition:transform .15s;flex:none;margin-right:2px}
details.more[open]>summary::before{transform:rotate(45deg)}
details.more[open]>summary{margin-bottom:10px}
details.card.more{gap:0}
details.card.more[open]{gap:12px}
@media (prefers-reduced-motion:reduce){details.more>summary::before{transition:none}}
@media (max-width:640px){.hide-sm{display:none}.score-big{font-size:44px}}
.btn.ghost.danger{color:var(--bad)}

/* ---- Danh sách mã đề: bấm để mở phần sửa ngay bên dưới ---- */
.key-list{display:flex;flex-direction:column;border-top:1px solid var(--line);margin:0 -16px}
.key-item{border-bottom:1px solid var(--line)}
.key-head{appearance:none;border:0;background:none;color:var(--ink);font:inherit;width:100%;display:flex;align-items:center;gap:10px;padding:14px 16px;cursor:pointer;text-align:left}
.key-head:hover{background:var(--chip)}
.key-head b{font-size:16px}
.key-head .chev{width:9px;height:9px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform .15s;margin-right:4px}
.key-head[aria-expanded="true"] .chev{transform:rotate(-135deg)}
.key-head[aria-expanded="true"]{background:var(--chip)}
.key-body{padding:4px 16px 16px;display:flex;flex-direction:column;gap:12px}
.key-body[hidden]{display:none}
#k-new-body{padding:0 0 8px;border-bottom:1px solid var(--line)}
@media (prefers-reduced-motion:reduce){.key-head .chev{transition:none}}

/* ---- Danh sách tài khoản + hộp thoại giữa màn hình ---- */
.user-list{display:flex;flex-direction:column;margin:0 -16px;border-top:1px solid var(--line)}
.user-row{display:flex;align-items:center;gap:10px;padding:0 16px 0 0;border-bottom:1px solid var(--line)}
.user-main{appearance:none;border:0;background:none;color:var(--ink);font:inherit;text-align:left;flex:1;min-width:0;display:flex;flex-direction:column;gap:1px;padding:12px 16px;cursor:pointer}
.user-main:hover{background:var(--chip)}
.user-main b,.user-main span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.modal-bg{position:fixed;inset:0;z-index:80;background:rgba(10,14,12,.5);display:flex;align-items:center;justify-content:center;padding:max(16px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) max(16px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px))}
.modal{background:var(--paper);color:var(--ink);border-radius:14px;width:100%;max-width:440px;max-height:100%;overflow:auto;padding:20px;display:flex;flex-direction:column;gap:14px;box-shadow:0 20px 60px rgba(0,0,0,.3);animation:pop .14s ease-out}
@keyframes pop{from{transform:scale(.97);opacity:0}to{transform:none;opacity:1}}
@media (prefers-reduced-motion:reduce){.modal{animation:none}}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.modal-head h2{font-size:18px}
.info-list{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;margin:0;font-size:14px}
.info-list dt{color:var(--muted)}
.info-list dd{margin:0;min-width:0}
.modal-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.modal-actions .btn{width:100%}
.modal-actions .btn.danger{color:var(--bad);border-color:var(--bad)}
.modal-actions .btn.danger:hover{background:var(--bad-bg)}

/* ---- Màn Cài đặt: danh sách nhóm, mỗi dòng bấm được ---- */
.set-title{margin:6px 4px -8px}
.set-group{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.set-row{appearance:none;border:0;background:none;color:var(--ink);font:inherit;font-size:15px;width:100%;display:flex;align-items:center;gap:12px;padding:14px 16px;text-align:left;cursor:pointer;min-height:52px}
.set-row+.set-row,.set-row+input+.set-row{border-top:1px solid var(--line)}
.set-row:hover{background:var(--chip)}
.set-row.plain{padding:6px 0;min-height:0}
.set-row.plain:hover{background:none}
.set-label{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}
.set-label span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.set-val{color:var(--muted);font-size:14px;white-space:nowrap}
.set-chev{width:8px;height:8px;border-right:2px solid var(--faint);border-bottom:2px solid var(--faint);transform:rotate(-45deg);flex:none;margin-right:2px}
.set-row.danger{color:var(--bad);justify-content:center;font-weight:600}
.set-row.danger .set-label{flex:0 1 auto;align-items:center}
.set-profile{padding:16px}
.set-profile b{font-size:16px}
.set-note{margin:-6px 4px 0}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:none}
.switch{appearance:none;width:44px;height:26px;border-radius:13px;background:var(--line);position:relative;cursor:pointer;flex:none;transition:background .15s;margin:0}
.switch::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.25);transition:transform .15s}
.switch:checked{background:var(--ok)}
.switch:checked::after{transform:translateX(18px)}
.switch:focus-visible{outline:2px solid var(--key);outline-offset:2px}
@media (prefers-reduced-motion:reduce){.switch,.switch::after{transition:none}}
.modal-actions.one{grid-template-columns:1fr}
/* Bố cục: điện thoại 1 cột (tài khoản trên cùng); máy tính 2 cột, giãn hết chiều ngang (tuỳ chọn bên trái, thẻ tài khoản bên phải) */
.set-layout{display:grid;gap:16px;grid-template-columns:minmax(0,1fr);align-items:start;width:100%}
.set-col{display:flex;flex-direction:column;gap:16px;min-width:0}
@media (min-width:1000px){
  .set-layout{grid-template-columns:minmax(0,1fr) minmax(300px,380px);gap:24px;align-items:stretch}
  .set-acc{order:2}
  /* Hai cột cao bằng nhau: tiêu đề trên cùng thẳng hàng, nút đỏ cuối cùng thẳng hàng ở đáy */
  .set-col>.set-group:last-child{margin-top:auto}
  .set-acc .set-profile{flex-wrap:wrap;padding:24px 20px;justify-content:center;text-align:center;gap:10px}
  .set-acc .set-profile .avatar{width:72px;height:72px;font-size:24px}
  .set-acc .set-profile .set-label{flex:1 1 100%;align-items:center}
  .set-acc .set-profile .set-label span{white-space:normal}
  .set-acc .set-profile .set-chev{display:none}
  .set-acc .set-profile .pill{order:3}
  .set-acc .set-profile .set-edit{display:block;order:4;flex:1 1 100%;font-size:13px;font-weight:600;color:var(--key)}
  .set-col>.set-title:first-child{margin-top:0}
}
input:disabled,select:disabled,textarea:disabled{background:var(--chip);color:var(--muted);cursor:not-allowed}

.only-mob{display:flex}.only-desk{display:none}
@media (min-width:1000px){.only-mob{display:none}.only-desk{display:flex}}

.set-edit{display:none}
#m-form{gap:12px}

/* iOS tự phóng to khi ô nhập có chữ < 16px: giữ 16px trên màn hình cảm ứng */
@media (pointer:coarse){input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=file]),select,textarea{font-size:16px}}
/* Cảm giác app native: không phóng to khi chạm 2 lần, không bôi đen/menu giữ lâu trên nút, không kéo nảy trang */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
*{touch-action:manipulation}
a,button,nav,label,img,svg,.side,.tabs,.chip,.seg{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
input,textarea,select,[contenteditable]{-webkit-user-select:text;user-select:text;-webkit-touch-callout:default}
@media (display-mode:standalone){html,body{overscroll-behavior:none}}