/* FLYER IELTS · Classic v2 — every colour below is a real token from the
   ieltsguru.ai / ielts.flyer.us product (gitea.flyer.vn/flyer/webs-ielts,
   src/theme/tokens.ts). The neutral scale is the product's shared `lightNeutral`
   + `lightStatus`; each [data-ielts-theme] block is one of its eight LIGHT
   "Classic" variants, mapped as: colorPrimary → --brand (bars, rings, strong
   fills) · accentBg → --brand-fill (fills that carry text) · onAccent → --on-brand
   · accent → --accent (text/icons on a tint) · hoverOptionBgColor → --brand-soft
   · tintLine → --brand-line · recordCircleColor → --record. The 9th variant,
   CLASSIC_BLACK (dark ground), is not offered here: this prototype's surfaces
   assume a light page.
   Product default is CLASSIC_BLACK_LIGHT (`defaultIeltsTheme` in src/store/home.ts);
   this page opens on CLASSIC_TEAL_BLUE because black-as-accent read as heavy. */
:root{
  --ink:#0F0F0F;--ink-2:#262626;--ink-3:#515159;--muted:#69707D;--faint:#9AA0AC;--ghost:#E0E0E0;
  --line:#EDEDED;--line-2:#F5F5F5;--bg:#FCFCFC;--panel:#F5F5F5;--white:#fff;
  --green:#337C4A;--green-bg:#E8F5E9;--amber:#8A6D1B;--amber-bg:#F5EFDC;--red:#C21111;--red-bg:#FFEBEE;--blue:#2563EB;--blue-bg:#E8EFFE;
  --gold:var(--accent);--gold-bg:var(--brand-soft);--sky:#2563EB;--sky-bg:#E8EFFE;
  --r:8px;--r-lg:10px;--r-xl:12px;--side:232px;--top:56px;--control-r:100px;
  --font:"Open Sans","Helvetica Neue",Arial,sans-serif;
  --brand-ink:var(--accent);--brand-2:var(--brand);--btn-pri-hover:var(--brand);
  --avatar:var(--brand-fill);--bar:var(--brand);
  --card-brand-grad:var(--white);--share-grad:var(--brand-soft);
  --call-teacher-grad:radial-gradient(ellipse at 50% 30%,#262626,#141319 70%);
  /* large surfaces are light in every classic variant, so text on them is ink */
  --on-card:var(--ink);--on-card-muted:var(--muted);--on-card-faint:var(--faint);--on-card-line:var(--line);
  /* fallback = CLASSIC_TEAL_BLUE, also set by the picker before paint */
  --brand:#10809D;--brand-fill:#10809D;--on-brand:#fff;--accent:#0F7B97;--brand-soft:#E9FAFF;--brand-line:#10809D;--record:#FD7307;
  color-scheme:light;
}
[data-ielts-theme="CLASSIC_TEAL_BLUE"]{--brand:#10809D;--brand-fill:#10809D;--on-brand:#fff;--accent:#0F7B97;--brand-soft:#E9FAFF;--brand-line:#10809D;--record:#FD7307}
[data-ielts-theme="CLASSIC_STEEL_BLUE"]{--brand:#3F72B6;--brand-fill:#3F72B6;--on-brand:#fff;--accent:#3F72B6;--brand-soft:#E9FAFF;--brand-line:#3F72B6;--record:#DA3324}
[data-ielts-theme="CLASSIC_BRIGHT_BLUE"]{--brand:#3895D3;--brand-fill:#3895D3;--on-brand:#fff;--accent:#3895D3;--brand-soft:#E9FAFF;--brand-line:#3895D3;--record:#EBCC91}
[data-ielts-theme="CLASSIC_YELLOW_ORANGE"]{--brand:#FFAE00;--brand-fill:#F0E4CC;--on-brand:#845E0B;--accent:#845E0B;--brand-soft:#FFF9E9;--brand-line:#DDCCA6;--record:#D09C3B}
[data-ielts-theme="CLASSIC_LIGHT_ORANGE"]{--brand:#FB9E61;--brand-fill:#F1E2C9;--on-brand:#9B1F11;--accent:#9B1F11;--brand-soft:#FFF9E9;--brand-line:#DFCBA5;--record:#DF7027;--control-r:4px}
[data-ielts-theme="CLASSIC_DUSTY_PINK"]{--brand:#EAB6B6;--brand-fill:#F0CCCC;--on-brand:#B51717;--accent:#B51717;--brand-soft:#FFF2E9;--brand-line:#DDA6A6;--record:#EB7777}
[data-ielts-theme="CLASSIC_GREEN"]{--brand:#C4D29F;--brand-fill:#E3EAD2;--on-brand:#5B6F25;--accent:#5B6F25;--brand-soft:#FCFFE9;--brand-line:#CCD8AC;--record:#EBCC91}
[data-ielts-theme="CLASSIC_BLACK_LIGHT"]{--brand:#0F0F0F;--brand-fill:#0F0F0F;--on-brand:#fff;--accent:#0F0F0F;--brand-soft:#F5F5F5;--brand-line:#D9D9D9;--record:#ABAAA6;--brand-2:#2b2b2b;--btn-pri-hover:#2b2b2b;--bar:#515159;--avatar:#515159}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:#e9e7ee;-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.5}
a{color:var(--accent);text-decoration:none}
button{font-family:inherit;font-size:inherit}
svg.i{width:18px;height:18px;flex:none;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
svg.i.sm{width:14px;height:14px}svg.i.lg{width:22px;height:22px}svg.i.xl{width:30px;height:30px;stroke-width:1.5}

/* ---------- prototype chrome ---------- */
#proto{position:fixed;top:0;left:0;right:0;height:40px;background:#141319;color:#ddd;display:flex;align-items:center;justify-content:space-between;padding:0 14px;z-index:50;font-size:12px;gap:10px}
.pt-brand{font-weight:700;color:#fff;margin-right:8px}
.pt-sub{color:#9a98a3}
.pt-mid{display:flex;gap:4px;background:#26252d;padding:3px;border-radius:8px}
.pt-btn{background:transparent;color:#bbb;border:0;padding:4px 12px;border-radius:6px;cursor:pointer;font-weight:600}
.pt-btn.on{background:#fff;color:#141319}
.pt-right{display:flex;align-items:center;gap:10px}
#pt-jump{background:#26252d;color:#ddd;border:1px solid #3a3944;border-radius:6px;padding:4px 6px;max-width:220px;font-size:12px}
.pt-link{color:#bbb}
#stage{position:fixed;inset:40px 0 0 0;overflow:auto;display:flex;align-items:flex-start;justify-content:center}
#app{container-type:inline-size;container-name:app;width:100%;height:100%;background:var(--white);position:relative;overflow:hidden}
body.phone #stage{align-items:center;padding:16px}
body.phone #app{width:392px;height:820px;max-height:calc(100vh - 72px);border-radius:44px;border:10px solid #141319;box-shadow:0 30px 60px rgba(20,19,25,.35)}
body.phone #app:before{content:"";position:absolute;top:10px;left:50%;transform:translateX(-50%);width:110px;height:26px;background:#141319;border-radius:14px;z-index:9}
@media (max-width:640px){#proto .pt-sub,#proto .pt-link,#pt-jump{display:none}body.phone #stage{padding:0}body.phone #app{width:100%;height:100%;max-height:none;border:0;border-radius:0}body.phone #app:before{display:none}}

/* ---------- shell ---------- */
.shell{display:flex;height:100%;min-height:0}
.side{width:var(--side);flex:none;border-right:1px solid var(--line);background:var(--white);padding:16px 12px;display:flex;flex-direction:column;gap:2px;overflow-y:auto}
.logo{display:flex;align-items:center;gap:10px;padding:4px 10px 14px;font-weight:800;font-size:16px;letter-spacing:-.02em}
.logo .mark{width:30px;height:30px;border-radius:9px;background:var(--card-brand-grad);color:var(--on-brand);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800}
.logo small{display:block;font-size:10.5px;font-weight:600;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--r);font-size:13.5px;color:var(--ink-2);cursor:pointer;font-weight:450}
.nav:hover{background:var(--panel)}
.nav.on{background:var(--brand-soft);color:var(--accent);font-weight:600}
.nav .ic{width:18px;display:flex;color:var(--muted)}
.nav.on .ic{color:var(--accent)}
.nav .badge{margin-left:auto;font-size:10.5px;font-weight:700;background:var(--red);color:#fff;border-radius:9px;padding:1px 6px}
.nav .tag{margin-left:auto;font-size:9.5px;font-weight:700;background:var(--panel);color:var(--muted);border-radius:4px;padding:2px 5px;letter-spacing:.04em}
.sect{font-size:10.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#8e8e96;padding:14px 10px 4px}
.side-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.me{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--r);cursor:pointer}
.me:hover{background:var(--panel)}
.me b{display:block;font-size:13px}
.me span{font-size:11.5px;color:var(--muted)}
.main{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0}
.top{height:var(--top);flex:none;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 24px;border-bottom:1px solid var(--line);background:var(--white)}
.top h1{font-size:17px;font-weight:700;margin:0;letter-spacing:-.01em;display:flex;align-items:center;gap:8px}
.top .back{width:32px;height:32px;border-radius:8px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-2);background:#fff}
.top .acts{display:flex;align-items:center;gap:8px}
.stat{display:flex;align-items:center;gap:5px;font-size:12.5px;font-weight:700;padding:5px 9px;border-radius:999px;background:var(--panel);color:var(--ink-2)}
.stat.fire{background:var(--amber-bg);color:var(--amber)}
.stat.coin{background:var(--gold-bg);color:var(--gold)}
.stat.xp{background:var(--brand-soft);color:var(--accent)}
.content{flex:1;overflow-y:auto;background:var(--bg);padding:22px 24px 40px;min-height:0}
.content.plain{background:var(--white)}
.tabbar{display:none}
.wrap{max-width:980px;margin:0 auto}
.wrap.narrow{max-width:640px}

/* ---------- primitives ---------- */
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg)}
.card.pad{padding:16px 18px}
.card.click{cursor:pointer;transition:box-shadow .15s,transform .15s}
.card.click:hover{border-color:var(--ghost);background:#fcfcfd}
.card.brand{background:var(--card-brand-grad);color:var(--on-card);border:0}
.card.brand .muted{color:var(--on-card-muted)}
.card.soft{background:var(--brand-soft);border-color:var(--brand-line)}
.card-h{padding:12px 18px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}
.card-h .t{font-size:14px;font-weight:700}
.card-h .s{font-size:12px;color:var(--muted);font-weight:400}
.card-h a{font-size:12.5px;font-weight:600}
.card-b{padding:14px 18px}
.grid{display:grid;gap:14px}.grid>*,.split>*{min-width:0}
.g2{grid-template-columns:1fr 1fr}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.row{display:flex;align-items:center;gap:10px}
.row.between{justify-content:space-between}
.row.wrap{flex-wrap:wrap}
.col{display:flex;flex-direction:column;gap:10px}
.stack>*+*{margin-top:14px}
.muted{color:var(--muted)}
.small{font-size:12px}
.xs{font-size:11px}
.tiny{font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;font-weight:700;color:var(--muted)}
.big{font-size:28px;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.huge{font-size:44px;font-weight:800;letter-spacing:-.03em;line-height:1}
h2.sec{font-size:15px;font-weight:700;margin:22px 0 10px;display:flex;align-items:center;justify-content:space-between}
h2.sec:first-child{margin-top:0}
h2.sec a{font-size:12.5px;font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid #d4d4d8;background:#fff;color:var(--ink);border-radius:var(--r);padding:9px 14px;font-weight:600;cursor:pointer;font-size:13.5px;line-height:1.2;white-space:nowrap}
.btn:hover{background:var(--panel)}
.btn.pri{background:var(--brand-fill);border-color:var(--brand-fill);color:var(--on-brand)}
.btn.pri:hover{background:var(--btn-pri-hover)}
.btn.ghost{background:transparent;border-color:transparent;color:var(--accent)}
.btn.ghost:hover{background:var(--brand-soft)}
.btn.white{background:#fff;color:var(--accent);border-color:#fff}
.btn.danger{background:var(--red);border-color:var(--red);color:#fff}
.btn.sm{padding:6px 10px;font-size:12.5px;border-radius:8px}
.btn.lg{padding:13px 20px;font-size:15px;border-radius:12px}
.btn.block{width:100%}
.btn.icon{width:36px;height:36px;padding:0;border-radius:50%}
.btn:disabled{opacity:.5;cursor:default}
.chip{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;border:1px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;white-space:nowrap}
.chip:hover{border-color:var(--ghost)}
.chip.on{background:var(--brand-fill);border-color:var(--brand-fill);color:var(--on-brand)}
.chip.soft{background:var(--brand-soft);border-color:var(--brand-line);color:var(--accent)}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chips.scroll{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.pill{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--panel);color:var(--ink-3)}
.pill.g{background:var(--green-bg);color:var(--green)}.pill.a{background:var(--amber-bg);color:var(--amber)}.pill.r{background:var(--red-bg);color:var(--red)}.pill.b{background:var(--blue-bg);color:var(--blue)}.pill.p{background:var(--brand-soft);color:var(--accent)}.pill.gold{background:var(--gold-bg);color:var(--gold)}.pill.t{background:var(--sky-bg);color:var(--sky)}
.bar{height:8px;border-radius:99px;background:var(--line-2);overflow:hidden}
.bar i{display:block;height:100%;background:var(--bar);border-radius:99px}
.bar.g i{background:var(--green)}.bar.a i{background:var(--amber)}.bar.gold i{background:var(--gold)}.bar.thin{height:5px}
.ring{position:relative;width:96px;height:96px}
.ring svg{transform:rotate(-90deg);width:100%;height:100%}
.ring circle{fill:none;stroke-width:8;stroke-linecap:round}
.ring .bg{stroke:var(--line-2)}.ring .fg{stroke:var(--brand)}
.ring .v{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:800;font-size:22px;line-height:1}
.ring .v small{font-size:10px;font-weight:600;color:var(--muted);margin-top:3px}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--avatar);color:var(--on-brand);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex:none}
.avatar.sm{width:28px;height:28px;font-size:11px}.avatar.lg{width:56px;height:56px;font-size:20px}
.avatar.c1{background:#0f766e}.avatar.c2{background:#b45309}.avatar.c3{background:#1d4ed8}.avatar.c4{background:#be185d}.avatar.c5{background:#4d7c0f}.avatar.c6{background:#7c3aed}
.list{display:flex;flex-direction:column}
.item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-top:1px solid var(--line-2);cursor:pointer}
.item:first-child{border-top:0}
.item:hover{background:var(--bg)}
.item .ic{width:38px;height:38px;border-radius:10px;background:var(--panel);display:flex;align-items:center;justify-content:center;color:var(--ink-2);flex:none}
.item .ic.p{background:var(--brand-soft);color:var(--accent)}.item .ic.g{background:var(--green-bg);color:var(--green)}.item .ic.a{background:var(--amber-bg);color:var(--amber)}.item .ic.b{background:var(--blue-bg);color:var(--blue)}.item .ic.r{background:var(--red-bg);color:var(--red)}.item .ic.gold{background:var(--gold-bg);color:var(--gold)}.item .ic.t{background:var(--sky-bg);color:var(--sky)}
.item .tx{flex:1;min-width:0}
.item .tx b{display:block;font-size:13.5px}
.item .tx>span{font-size:12px;color:var(--muted);display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.item .end{flex:none;text-align:right;font-size:12px;color:var(--muted)}
.chev{color:var(--ghost)}
.kpi{padding:14px 16px}
.kpi .l{font-size:11.5px;color:var(--muted);font-weight:600}
.kpi .v{font-size:24px;font-weight:800;letter-spacing:-.02em;margin-top:2px}
.kpi .d{font-size:11.5px;font-weight:600;margin-top:2px}
.kpi .d.up{color:var(--green)}.kpi .d.dn{color:var(--red)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:16px;overflow-x:auto;scrollbar-width:none}
.tab{padding:8px 14px 11px;font-weight:500;color:var(--ink-3);cursor:pointer;white-space:nowrap;border-radius:8px 8px 0 0;font-size:13.5px}
.tab.on{color:var(--ink);font-weight:600;background:var(--panel);box-shadow:inset 0 -2px 0 var(--brand)}
.seg{display:inline-flex;background:var(--panel);padding:3px;border-radius:10px;gap:2px}
.seg span{padding:6px 12px;border-radius:8px;font-size:12.5px;font-weight:600;color:var(--muted);cursor:pointer}
.seg span.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}
.field label{font-size:12.5px;font-weight:600;color:var(--ink-2)}
.in,select.in,textarea.in{border:1px solid var(--line);border-radius:var(--r);padding:10px 12px;font-family:inherit;font-size:14px;background:#fff;color:var(--ink);width:100%}
.in:not(textarea),select.in{border-radius:var(--control-r)}
.in:focus{outline:2px solid var(--brand-line);border-color:var(--brand)}
.toggle{width:40px;height:22px;border-radius:99px;background:var(--ghost);position:relative;cursor:pointer;flex:none;transition:background .15s}
.toggle:after{content:"";position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:50%;background:#fff;transition:left .15s}
.toggle.on{background:var(--brand-fill)}.toggle.on:after{left:21px}
.opt{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1.5px solid var(--line);border-radius:var(--r-lg);cursor:pointer;background:#fff}
.opt:hover{border-color:var(--ghost)}
.opt.on{border-color:var(--brand);background:var(--brand-soft)}
.opt .ic{width:40px;height:40px;border-radius:10px;background:var(--panel);display:flex;align-items:center;justify-content:center;color:var(--ink-2);flex:none;font-size:18px}
.opt.on .ic{background:#fff;color:var(--accent)}
.opt b{display:block;font-size:14px}
.opt span{font-size:12px;color:var(--muted)}
.opt .rad{margin-left:auto;width:20px;height:20px;border-radius:50%;border:2px solid var(--ghost);flex:none}
.opt.on .rad{border-color:var(--brand);background:var(--brand);box-shadow:inset 0 0 0 3px #fff}
.toast{position:absolute;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:#141319;color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;font-weight:600;opacity:0;transition:all .2s;z-index:40;pointer-events:none;white-space:nowrap}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.sheet-bg{position:absolute;inset:0;background:rgba(20,19,25,.45);z-index:30;display:flex;align-items:center;justify-content:center;padding:20px}
.sheet{background:#fff;border-radius:var(--r-xl);width:100%;max-width:520px;max-height:90%;overflow-y:auto;box-shadow:0 30px 60px rgba(0,0,0,.3)}
.sheet .sh{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;font-weight:700;font-size:15px}
.sheet .sb{padding:18px 20px}
.sheet .sf{padding:14px 20px;border-top:1px solid var(--line);display:flex;gap:8px;justify-content:flex-end}
.x{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--muted)}
.x:hover{background:var(--panel)}
.dots{display:flex;gap:3px}
.dots i{width:6px;height:6px;border-radius:50%;background:var(--line)}
.dots i.on{background:var(--brand)}
.hr{height:1px;background:var(--line);margin:14px 0}
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{text-align:left;font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:8px 12px;border-bottom:1px solid var(--line);font-weight:700}
.tbl td{padding:10px 12px;border-bottom:1px solid var(--line-2);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.num{font-variant-numeric:tabular-nums}
.band{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:30px;padding:0 8px;border-radius:8px;background:var(--brand-soft);color:var(--accent);font-weight:800;font-size:14px}
.band.lg{min-width:60px;height:44px;font-size:22px;border-radius:12px}
.band.g{background:var(--green-bg);color:var(--green)}.band.a{background:var(--amber-bg);color:var(--amber)}.band.gold{background:var(--gold-bg);color:var(--gold)}
.medal{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;flex:none;background:var(--panel);color:var(--ink-3)}
.medal.m1{background:linear-gradient(135deg,#ffd76a,#e0a400);color:#5d4300}.medal.m2{background:linear-gradient(135deg,#e8e8ee,#b9b9c4);color:#3b3b44}.medal.m3{background:linear-gradient(135deg,#f0b98a,#b8652a);color:#4a2405}
.badge-tile{padding:14px 10px;text-align:center;border-radius:var(--r-lg);border:1px solid var(--line);background:#fff}
.badge-tile .em{width:52px;height:52px;border-radius:50%;margin:0 auto 8px;display:flex;align-items:center;justify-content:center;background:var(--gold-bg);color:var(--gold)}
.badge-tile.lock{opacity:.45;filter:grayscale(1)}
.badge-tile b{display:block;font-size:12.5px}
.badge-tile span{font-size:11px;color:var(--muted)}
.ladder{position:relative;padding-left:26px}
.ladder:before{content:"";position:absolute;left:9px;top:12px;bottom:12px;width:2px;background:var(--line)}
.lstep{position:relative;display:flex;gap:14px;align-items:flex-start;padding:10px 0}
.lstep .pt{position:absolute;left:-26px;top:14px;width:20px;height:20px;border-radius:50%;border:2px solid var(--ghost);background:#fff}
.lstep.done .pt{background:var(--green);border-color:var(--green)}
.lstep.now .pt{background:var(--brand);border-color:var(--brand);box-shadow:0 0 0 5px var(--brand-soft)}
.lstep .card{flex:1}
.lstep.lock .card{opacity:.6}
.passage{font-size:14px;line-height:1.75;color:var(--ink-2)}
.passage p{margin:0 0 12px}
.passage mark{background:var(--gold-bg);color:var(--ink);padding:0 2px;border-radius:3px;cursor:pointer;border-bottom:1.5px dashed var(--gold)}
.qpal{display:grid;grid-template-columns:repeat(10,1fr);gap:5px}
.qpal span{height:28px;border-radius:6px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:11.5px;font-weight:600;cursor:pointer;background:#fff}
.qpal span.done{background:var(--brand-soft);border-color:var(--brand-line);color:var(--accent)}
.qpal span.on{background:var(--brand-fill);color:var(--on-brand);border-color:var(--brand-fill)}
.qpal span.flag{background:var(--amber-bg);border-color:var(--amber);color:var(--amber)}
.ans{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;cursor:pointer;margin-bottom:8px;background:#fff}
.ans:hover{border-color:var(--ghost)}
.ans.on{border-color:var(--brand);background:var(--brand-soft)}
.ans.ok{border-color:var(--green);background:var(--green-bg)}
.ans.bad{border-color:var(--red);background:var(--red-bg)}
.ans .k{width:24px;height:24px;border-radius:6px;background:var(--panel);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;flex:none}
.timer{font-variant-numeric:tabular-nums;font-weight:800;font-size:15px;padding:5px 10px;border-radius:8px;background:var(--panel)}
.timer.warn{background:var(--amber-bg);color:var(--amber)}
.ipa-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}
.ipa{border:1px solid var(--line);border-radius:10px;padding:8px 4px;text-align:center;cursor:pointer;background:#fff}
.ipa:hover{border-color:var(--brand);background:var(--brand-soft)}
.ipa b{display:block;font-size:18px;font-weight:700}
.ipa span{font-size:10.5px;color:var(--muted)}
.ipa.weak{border-color:var(--red);background:var(--red-bg)}
.wave{display:flex;align-items:center;gap:3px;height:40px}
.wave i{width:4px;border-radius:2px;background:var(--record);height:30%;animation:wv 1s ease-in-out infinite}
.wave.grey i{background:var(--ghost);animation:none}
@keyframes wv{0%,100%{height:25%}50%{height:95%}}
.wave i:nth-child(2n){animation-delay:.15s}.wave i:nth-child(3n){animation-delay:.3s}.wave i:nth-child(4n){animation-delay:.45s}
.call{background:#141319;color:#fff;border-radius:var(--r-xl);position:relative;overflow:hidden;min-height:380px;display:flex;flex-direction:column;--face-grad:linear-gradient(135deg,var(--brand),#141319);--face-glow-1:rgba(255,255,255,.14);--face-glow-2:rgba(255,255,255,.06);--face-glow-1s:rgba(255,255,255,.2);--face-glow-2s:rgba(255,255,255,.05);--on-card:#fff;--on-card-muted:rgba(255,255,255,.75);--on-card-line:rgba(255,255,255,.2)}
.call .teacher{flex:1;display:flex;align-items:center;justify-content:center;position:relative;background:var(--call-teacher-grad)}
.call .face{width:150px;height:150px;border-radius:50%;background:var(--face-grad,linear-gradient(135deg,#8A4BC0,#6A309B));display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 8px var(--face-glow-1,rgba(138,75,192,.25)),0 0 0 18px var(--face-glow-2,rgba(138,75,192,.1));animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 8px var(--face-glow-1,rgba(138,75,192,.25)),0 0 0 18px var(--face-glow-2,rgba(138,75,192,.1))}50%{box-shadow:0 0 0 14px var(--face-glow-1s,rgba(138,75,192,.3)),0 0 0 28px var(--face-glow-2s,rgba(138,75,192,.08))}}
.call .self{position:absolute;right:14px;top:14px;width:96px;height:120px;border-radius:12px;background:#26252d;border:2px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;color:#888;font-size:11px}
.call .name{position:absolute;left:14px;top:14px;background:rgba(0,0,0,.45);padding:5px 10px;border-radius:8px;font-size:12px;font-weight:600}
.call .sub{padding:14px 18px;background:rgba(255,255,255,.06);font-size:14px;line-height:1.55;min-height:70px}
.call .sub .who{font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:#b9a7d6;font-weight:700;display:block;margin-bottom:3px}
.call .ctl{display:flex;justify-content:center;gap:12px;padding:14px}
.call .ctl .btn{width:48px;height:48px;padding:0;border-radius:50%;background:rgba(255,255,255,.12);border:0;color:#fff}
.call .ctl .btn.end{background:var(--red)}
.call .ctl .btn.rec{background:#fff;color:var(--accent)}
.tr{display:flex;gap:10px;padding:10px 0;border-top:1px solid var(--line-2);font-size:13.5px}
.tr:first-child{border-top:0}
.tr .who{flex:none;width:64px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);padding-top:2px}
.tr .who.me{color:var(--accent)}
.tr del{color:var(--red);text-decoration:line-through}
.tr ins{color:var(--green);text-decoration:none;font-weight:600}
.email{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff;font-size:13.5px}
.email .eh{padding:12px 16px;background:var(--panel);font-size:12px;color:var(--muted);border-bottom:1px solid var(--line)}
.email .eh b{color:var(--ink);display:block;font-size:13px}
.email .eb{padding:20px}
.word{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;margin-bottom:8px;background:#fff}
.word b{font-size:14px}
.word .ipa-t{font-size:12px;color:var(--muted);font-family:"Inter",serif}
.word .ms{margin-left:auto;display:flex;gap:2px}
.word .ms i{width:8px;height:8px;border-radius:2px;background:var(--line)}
.word .ms i.on{background:var(--green)}
.ext-stage{display:flex;gap:20px;align-items:flex-start}
.ext{flex:none;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 20px 50px rgba(0,0,0,.18);width:320px;overflow:hidden;font-size:13px}
.ext .xh{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--brand-fill);color:var(--on-brand);font-weight:700}
.ext .xb{padding:14px}
.article{font-family:Georgia,"Times New Roman",serif;line-height:1.7;font-size:15px;color:#222}
.article h3{font-family:Georgia,serif;font-size:22px;margin:0 0 6px;line-height:1.25}
.article .by{font-family:var(--font);font-size:12px;color:var(--muted);margin-bottom:14px}
.article mark{background:#fff0a8;border-bottom:2px solid var(--gold);padding:0 2px}
.article mark.on{background:var(--brand-soft);border-color:var(--brand)}
.share{background:var(--share-grad);color:var(--on-card);border-radius:var(--r-xl);padding:22px;position:relative;overflow:hidden}
.share:before{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;background:rgba(255,255,255,.08)}
.league{display:flex;gap:6px;align-items:flex-end;justify-content:space-between}
.league .lg{flex:1;text-align:center;font-size:10.5px;font-weight:700;color:var(--muted)}
.league .lg i{display:block;height:26px;border-radius:6px;background:var(--line-2);margin-bottom:4px}
.league .lg.on{color:var(--gold)}.league .lg.on i{background:var(--gold);height:36px}
.league .lg.done i{background:var(--ghost)}
.plan-day{display:flex;flex-direction:column;align-items:center;gap:4px;flex:1;font-size:11px;color:var(--muted);font-weight:600}
.plan-day i{width:30px;height:30px;border-radius:50%;border:2px solid var(--line);display:flex;align-items:center;justify-content:center;font-style:normal;font-size:11px}
.plan-day.done i{background:var(--green);border-color:var(--green);color:#fff}
.plan-day.now i{border-color:var(--brand);color:var(--accent);box-shadow:0 0 0 3px var(--brand-soft)}
.plan-day.miss i{border-color:var(--red-bg);background:var(--red-bg);color:var(--red)}
.split{display:grid;grid-template-columns:1fr 340px;gap:16px;align-items:start}
.split.rev{grid-template-columns:300px 1fr}
.sticky{position:sticky;top:0}
.onb{max-width:560px;margin:0 auto;padding:28px 20px 60px}
.onb .prog{display:flex;gap:4px;margin-bottom:26px}
.onb .prog i{flex:1;height:4px;border-radius:2px;background:var(--line)}
.onb .prog i.on{background:var(--brand)}
.onb h1{font-size:24px;letter-spacing:-.02em;margin:0 0 6px;line-height:1.2}
.onb .lead{color:var(--muted);margin:0 0 20px;font-size:14.5px}
.onb .foot{display:flex;justify-content:space-between;gap:10px;margin-top:26px}
.bandpick{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}
.bandpick span{padding:10px 0;text-align:center;border:1.5px solid var(--line);border-radius:10px;font-weight:700;cursor:pointer;background:#fff}
.bandpick span.on{border-color:var(--brand-fill);background:var(--brand-fill);color:var(--on-brand)}
.bandpick span.cur{border-color:var(--gold);background:var(--gold-bg);color:var(--gold)}
.mascot{width:72px;height:72px;border-radius:50%;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:14px}
.bubble{background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:14px 14px 14px 4px;padding:12px 14px;font-size:13.5px;color:var(--brand-ink)}
.fab{position:absolute;right:20px;bottom:20px;z-index:20}
.notif{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff}
.notif .ic{width:34px;height:34px;border-radius:8px;background:var(--brand-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;flex:none}
.empty{padding:40px 20px;text-align:center;color:var(--muted)}
.skill-tile{padding:16px;border-radius:var(--r-lg);border:1px solid var(--line);background:#fff;cursor:pointer;position:relative;overflow:hidden}
.skill-tile:hover{border-color:var(--ghost)}
.skill-tile .ic{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.skill-tile.L .ic{background:var(--blue-bg);color:var(--blue)}.skill-tile.R .ic{background:var(--green-bg);color:var(--green)}.skill-tile.W .ic{background:var(--amber-bg);color:var(--amber)}.skill-tile.S .ic{background:var(--brand-soft);color:var(--accent)}
.skill-tile b{display:block;font-size:15px}
.skill-tile .bd{position:absolute;right:14px;top:14px}
.filters{display:flex;flex-direction:column;gap:14px}
.filters .fg b{display:block;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:6px}
.check{display:flex;align-items:center;gap:8px;font-size:13px;padding:4px 0;cursor:pointer}
.check i{width:16px;height:16px;border-radius:4px;border:1.5px solid var(--ghost);display:inline-flex;align-items:center;justify-content:center;font-style:normal;font-size:10px;color:#fff;flex:none}
.check.on i{background:var(--brand);border-color:var(--brand)}
.check .n{margin-left:auto;color:var(--faint);font-size:11.5px}
.speaker-tile{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 8px;border:1.5px solid var(--line);border-radius:14px;cursor:pointer;background:#fff;text-align:center}
.speaker-tile.on{border-color:var(--brand);background:var(--brand-soft)}
.speaker-tile b{font-size:13px}.speaker-tile span{font-size:11px;color:var(--muted)}
.cue{background:var(--gold-bg);border:1px solid #f0d58a;border-radius:12px;padding:14px 16px;font-size:13.5px}
.cue b{display:block;margin-bottom:6px}
.cue ul{margin:6px 0 0;padding-left:18px}
.crit{display:grid;grid-template-columns:1fr auto;gap:4px 14px;align-items:center;font-size:13px}
.hidden{display:none!important}

/* ---------- mobile (container query on #app) ---------- */
@container app (max-width: 720px){
  .side{display:none}
  .tabbar{display:flex;flex:none;border-top:1px solid var(--line);background:#fff;padding:6px 4px calc(6px + env(safe-area-inset-bottom,0px));justify-content:space-around}
  .tabbar .tb{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:10.5px;font-weight:600;color:var(--muted);padding:4px 10px;border-radius:10px;cursor:pointer;min-width:56px}
  .tabbar .tb.on{color:var(--accent)}
  .tabbar .tb.speak i{width:44px;height:44px;border-radius:50%;background:var(--brand-fill);color:var(--on-brand);display:flex;align-items:center;justify-content:center;margin-top:-22px;box-shadow:0 6px 14px rgba(106,48,155,.35)}
  .top{padding:0 16px;height:52px}
  body.phone .top{padding-top:22px;height:74px}
  .top h1{font-size:16px}
  .content{padding:16px 16px 32px}
  .g3,.g4{grid-template-columns:1fr 1fr}
  .g2{grid-template-columns:1fr}
  .split,.split.rev{grid-template-columns:1fr}
  .sticky{position:static}
  .big{font-size:24px}
  .ipa-grid{grid-template-columns:repeat(4,1fr)}
  .qpal{grid-template-columns:repeat(8,1fr)}
  .bandpick{grid-template-columns:repeat(4,1fr)}
  .hide-m{display:none!important}
  .onb{padding:22px 18px 40px}
  body.phone .onb{padding-top:40px}
  .sheet-bg{align-items:flex-end;padding:0}
  .sheet{border-radius:20px 20px 0 0;max-width:none;max-height:88%}
  .stat span.lbl{display:none}
}
@container app (min-width: 721px){
  .hide-d{display:none!important}
}
/* Cloud theme brand mark (roadmap.flyer.vn/cloudtheme) */
.cloudmark{width:28px;height:28px;border-radius:8px;background:var(--brand-soft);border:2px solid var(--brand);position:relative;margin-left:0;flex:none}
.cloudmark:before{content:none}
.card.brand .ring .bg{stroke:var(--on-card-line)}.card.brand .ring .fg{stroke:var(--on-card)}.card.brand .ring .v{color:var(--on-card)}.card.brand .ring .v small{color:var(--on-card-muted)}
@container app (max-width: 720px){.ext-stage{flex-direction:column}.ext{width:100%;box-shadow:none}}
.ctip{position:absolute;background:#141319;color:#fff;font-size:11.5px;font-weight:600;padding:5px 8px;border-radius:6px;pointer-events:none;white-space:nowrap;z-index:5}
.bar-m{cursor:pointer}.bar-m:hover{fill:var(--brand-2)}
.chart{display:flex;gap:8px}
.chart-y{display:flex;flex-direction:column;justify-content:space-between;font-size:11px;color:var(--faint);text-align:right;height:150px;font-variant-numeric:tabular-nums;padding-bottom:0}
.chart-plot{flex:1;min-width:0}
.chart-plot svg{border-bottom:1px solid var(--line)}
.chart-x{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-top:6px}
.bandtile{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 10px;border:1px solid var(--line-2);border-radius:8px;min-width:0}
.spark{width:100%;max-width:140px;height:auto;flex:1;min-width:0}
@container app (max-width: 720px){.bandtile{flex-direction:column;align-items:stretch}.spark{max-width:none}}

/* ---------- classic: big surfaces stay light, colour is an accent ---------- */
.card.brand{border:1px solid var(--line)}
.card.brand .ring .fg{stroke:var(--brand)}.card.brand .ring .bg{stroke:var(--line-2)}
.card.brand .btn.white,.share .btn.white{background:var(--brand-fill);color:var(--on-brand);border-color:var(--brand-fill)}
.share{border:1px solid var(--brand-line)}
.share:before{background:var(--brand-fill);opacity:.12}
.share .pill{background:var(--white)!important;color:var(--ink)!important}
.share .ring .fg{stroke:var(--brand)}.share .ring .bg{stroke:var(--white)}
.card.brand .hr{background:var(--line)!important}
.mascot{background:var(--brand-soft);color:var(--accent)}