/* Dark-only cross-skill tool. Primary accent = brand MAROON (general LMS tool, not subject-scoped);
   part-tags use maroon/warning/violet as categorical coding. Fixed canonical-dark values. */
:root{
  --bg:#111114;
  --bg2:#19191D;
  --bg3:#202025;
  --text:#F7F7F8;
  --text2:#B7B7C0;
  --text3:#85858F;
  --border:#303037;
  --border2:#3A3A42;
  --red:#B6495B;
  --red2:#8A2432;
  --gold:#D69A43;
  --green:#55B982;
  --blue:#6F9CC8;
  --violet:#A18AE0;
  --red-dark:#C65A6B;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);min-height:100vh}
a{color:inherit}
.sb-topbar{height:64px;border-bottom:1px solid var(--border);background:rgba(17,17,20,.94);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.sb-brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-family:var(--font-heading);font-weight:800;letter-spacing:1.8px;font-size:18px}
.sb-brand img{height:36px;background:rgba(255,255,255,.14);padding:6px 10px;border-radius:6px}
.sb-toplinks{display:flex;gap:8px;align-items:center}
.sb-toplinks a{font-size:11px;font-weight:900;letter-spacing:.8px;text-transform:uppercase;color:var(--text2);text-decoration:none;border:1px solid var(--border2);padding:8px 12px}
.sb-toplinks a:hover{border-color:var(--red);color:var(--text)}
.sb-shell{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:38px 0 56px}
.sb-hero{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:end;border-bottom:1px solid var(--border);padding:34px 0 30px;margin-bottom:22px}
.sb-eyebrow{margin:0 0 8px;font-size:10px;font-weight:900;letter-spacing:2.5px;text-transform:uppercase;color:var(--gold)}
h1,h2,h3{font-family:var(--font-heading);font-weight:800;font-weight:400;letter-spacing:.6px;margin:0}
h1{font-size:76px;line-height:.9}
h2{font-size:34px;line-height:1}
h3{font-size:24px;line-height:1.05}
.sb-sub{max-width:660px;color:var(--text2);line-height:1.7;font-size:15px;margin:18px 0 0}
.sb-hero-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.sb-btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:10px 16px;text-decoration:none;border:1px solid var(--border2);font-family:var(--font-heading);font-weight:800;font-size:14px;letter-spacing:1.8px}
.sb-btn.red{background:var(--red);border-color:var(--red);color:#fff}
.sb-btn.ghost{color:var(--text2)}
.sb-btn:hover{filter:brightness(1.12)}
.sb-tabs{display:flex;gap:1px;background:var(--border);border:1px solid var(--border);margin-bottom:28px;overflow-x:auto}
.sb-tab{border:0;background:var(--bg2);color:var(--text2);min-height:44px;padding:0 18px;font-family:var(--font-heading);font-weight:800;font-size:13px;letter-spacing:1.6px;cursor:pointer;white-space:nowrap}
.sb-tab.active{background:var(--red);color:#fff}
.sb-section{display:none;margin-bottom:34px}
.sb-section.active{display:block}
.sb-section-head{display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:16px}
.sb-section-head p:not(.sb-eyebrow){max-width:650px;color:var(--text2);font-size:13px;line-height:1.65;margin:8px 0 0}
.sb-card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--border);border:1px solid var(--border)}
.sb-tool-card{background:var(--bg2);padding:20px;text-decoration:none;min-height:214px;display:flex;flex-direction:column;gap:12px;transition:background .15s,border-color .15s}
.sb-tool-card:hover{background:var(--bg3)}
.sb-tool-card p{font-size:13px;line-height:1.65;color:var(--text2);margin:0}
.sb-card-tag{align-self:flex-start;font-size:9px;font-weight:900;text-transform:uppercase;letter-spacing:1.6px;border:1px solid var(--border2);padding:5px 8px;color:var(--text2)}
.sb-card-tag.green{color:var(--green);border-color:rgba(85,185,130,.45)}
.sb-card-tag.violet{color:var(--violet);border-color:rgba(161,138,224,.45)}
.sb-card-tag.gold{color:var(--gold);border-color:rgba(214,154,67,.55)}
.sb-card-tag.blue{color:var(--blue);border-color:rgba(111,156,200,.45)}
.sb-card-action{margin-top:auto;font-family:var(--font-heading);font-weight:800;font-size:13px;letter-spacing:1.7px;color:var(--red)}
.sb-card-activity{font-size:11px;font-weight:700;color:var(--gold);letter-spacing:.3px}
.sb-card-activity[hidden]{display:none}
.para-topic-row,.sample-controls{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.para-topic{background:var(--bg2);border:1px solid var(--border2);color:var(--text2);font-size:11px;font-weight:900;letter-spacing:.7px;text-transform:uppercase;padding:9px 12px;cursor:pointer}
.para-topic.active{border-color:var(--red);color:#fff;background:rgba(182,73,91,.14)}
.sb-loading,.sb-empty{padding:22px 0;color:var(--text3);font-size:13px}
.sb-empty{background:var(--bg2);border:1px solid var(--border);border-left:3px solid var(--gold);padding:18px;color:var(--text2)}
.para-card{background:var(--bg2);border:1px solid var(--border);border-left:3px solid var(--red);padding:22px;max-width:820px}
.para-context-badge{display:inline-flex;border:1px solid var(--border2);color:var(--gold);font-size:10px;font-weight:900;letter-spacing:1.4px;text-transform:uppercase;padding:5px 9px;margin-bottom:16px}
.para-orig-label{display:block;font-size:10px;font-weight:900;letter-spacing:2px;text-transform:uppercase;color:var(--text3);margin:0 0 8px}
.para-orig-text{font-size:22px;line-height:1.35;margin-bottom:18px}
.para-input{width:100%;min-height:118px;background:#080808;border:1px solid var(--border2);color:var(--text);font-family:var(--font-body);font-size:15px;line-height:1.7;padding:14px;resize:vertical}
.para-input:focus,.sample-controls input:focus,.sample-controls select:focus{outline:none;border-color:var(--red)}
.para-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.para-btn,.para-ai-btn{border:1px solid var(--border2);background:transparent;color:var(--text2);font-family:var(--font-heading);font-weight:800;font-size:13px;letter-spacing:1.6px;padding:10px 16px;cursor:pointer}
.para-btn.primary,.para-ai-btn{background:var(--red);border-color:var(--red);color:#fff}
.para-btn:disabled,.para-ai-btn:disabled{opacity:.55;cursor:wait}
.para-model-reveal{display:none;margin-top:18px;border-top:1px solid var(--border);padding-top:16px}
.para-model-reveal.show{display:block}
.para-model-label{font-size:10px;font-weight:900;letter-spacing:2px;text-transform:uppercase;color:var(--green);margin-bottom:10px}
.para-model-item{font-size:14px;color:var(--text2);line-height:1.7;padding:10px 12px;background:var(--bg3);border-left:2px solid var(--green);margin-bottom:7px}
.para-ai-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:14px}
.para-quota-hint{font-size:11px;color:var(--text3)}
.para-ai-result{display:none;margin-top:12px;background:#080808;border:1px solid var(--border);padding:13px 14px;color:var(--text2);font-size:13px;line-height:1.7}
.para-ai-result.show{display:block}
.sample-controls input,.sample-controls select{background:var(--bg2);border:1px solid var(--border2);color:var(--text);min-height:42px;padding:0 12px;font-family:var(--font-body)}
.sample-controls input{flex:1;min-width:240px}
.sample-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.sample-card{background:var(--bg2);border:1px solid var(--border);padding:18px}
.sample-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.sample-pill{font-size:9px;font-weight:900;letter-spacing:1.4px;text-transform:uppercase;border:1px solid var(--border2);color:var(--gold);padding:4px 7px}
.sample-prompt{font-size:15px;line-height:1.6;color:var(--text);margin:0 0 12px}
.sample-answer{display:none;background:#080808;border:1px solid var(--border);padding:14px;color:var(--text2);font-size:13px;line-height:1.8;white-space:pre-wrap;margin-top:12px}
.sample-card.open .sample-answer{display:block}
.sample-toggle{border:1px solid var(--red);background:var(--red);color:#fff;font-family:var(--font-heading);font-weight:800;font-size:13px;letter-spacing:1.6px;padding:9px 14px;cursor:pointer}
/* ── Speaking sub-tabs (Foundations/Shadowing/Question Bank nested under the Speaking tab) ── */
.sb-subtabs{display:flex;gap:1px;background:var(--border);border:1px solid var(--border);margin-bottom:20px;overflow-x:auto}
.sb-subtab{border:0;background:var(--bg2);color:var(--text2);min-height:38px;padding:0 16px;font-family:var(--font-heading);font-weight:800;font-size:12px;letter-spacing:1.4px;cursor:pointer;white-space:nowrap}
.sb-subtab.active{background:var(--red);color:#fff}
.sb-subsection{display:none}
.sb-subsection.active{display:block}

/* ── Question Bank (ported from Speaking_Practice_Hub.html) ── */
.page-sub-note{max-width:650px;color:var(--text2);font-size:13px;line-height:1.65;margin:0 0 16px}
.filter-row{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.filter-chip{font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:5px 12px;border:1px solid var(--border2);color:var(--text2);background:transparent;cursor:pointer;font-family:var(--font-body);transition:all .12s}
.filter-chip:hover{border-color:var(--red);color:var(--text)}
.filter-chip.active{background:var(--red);border-color:var(--red);color:#fff}
.qbank-list{display:flex;flex-direction:column;gap:8px}
.qb-item{background:var(--bg2);border:1px solid var(--border);border-left:3px solid transparent;padding:14px 16px;transition:border-color .15s}
.qb-item:hover{border-left-color:var(--red)}
.qb-meta{font-size:10px;font-weight:900;letter-spacing:1.5px;text-transform:uppercase;color:var(--text2);margin-bottom:5px;display:flex;align-items:center;gap:8px}
.qb-part-tag{padding:2px 8px;font-size:9px;font-weight:700;letter-spacing:1px}
.qb-part-tag.p1{background:rgba(182,73,91,.15);color:var(--red)}
.qb-part-tag.p2{background:rgba(214,154,67,.15);color:var(--gold)}
.qb-part-tag.p3{background:rgba(161,138,224,.12);color:var(--violet)}
.qb-q{font-size:14px;font-weight:700;color:var(--text);line-height:1.5;margin-bottom:6px}
.qb-bn{font-size:12px;color:var(--text2);font-weight:300;margin-bottom:8px}
.qb-bullets{font-size:12px;color:var(--text2);margin:6px 0;padding-left:16px}
.qb-bullets li{margin:2px 0}
.qb-actions{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.qb-btn{font-family:var(--font-body);font-size:11px;font-weight:700;letter-spacing:.5px;padding:5px 12px;border:1px solid var(--border2);background:transparent;color:var(--text2);cursor:pointer;transition:all .12s}
.qb-btn:hover{border-color:var(--red);color:var(--text)}
.qb-btn.practice{background:var(--red);border-color:var(--red);color:#fff}
.qb-report{font-size:10px;color:var(--text3);background:transparent;border:1px solid var(--border2);padding:4px 8px;cursor:pointer;margin-left:6px}
.qb-sample{display:none;margin-top:10px;padding:12px 14px;background:#080808;border-left:2px solid var(--gold);font-size:13px;line-height:1.6;color:var(--text2);font-style:italic}
.qb-sample.show{display:block}
.qb-sample-label{font-size:10px;font-weight:900;letter-spacing:1.5px;text-transform:uppercase;color:var(--gold);margin-bottom:6px;font-style:normal}
.qb-sample-regen{margin-top:10px;padding:5px 12px;background:transparent;border:1px solid var(--border2);color:var(--text2);font-size:10px;font-weight:700;letter-spacing:.5px;cursor:pointer;font-family:var(--font-body)}
.qb-sample-regen:hover{border-color:var(--gold);color:var(--gold)}
.qb-sample-regen:disabled{opacity:.4;cursor:wait}
.spk-btn{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border:1px solid var(--border);background:transparent;color:var(--text2);cursor:pointer;font-size:11px;flex-shrink:0;vertical-align:middle;margin-left:6px;transition:all .12s}
.spk-btn:hover{border-color:var(--red);color:var(--red)}
.spk-btn.speaking{background:var(--red);color:#fff;border-color:var(--red)}
.lang-toggle{display:inline-flex;align-items:center;gap:0;border:1px solid var(--border2);overflow:hidden;margin-left:auto}
.lang-toggle button{font-family:var(--font-heading);font-weight:800;font-size:11px;letter-spacing:1.5px;padding:5px 11px;background:transparent;border:none;color:var(--text2);cursor:pointer;transition:all .12s}
.lang-toggle button.active{background:var(--red);color:#fff}
.lang-toggle button:not(.active):hover{color:var(--text)}
body.bn-hidden .qb-bn,body.bn-hidden [data-bn-hint]{display:none !important}

/* ── Shadowing (ported from Speaking_Practice_Hub.html) ── */
.shadow-part-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:var(--border);margin-bottom:20px}
.shadow-part-btn{background:var(--bg2);padding:18px 12px;text-align:center;cursor:pointer;transition:background .12s;border:2px solid transparent}
.shadow-part-btn:hover{background:var(--bg3)}
.shadow-part-btn.active{background:rgba(182,73,91,.07);border-color:var(--red)}
.shadow-part-num{font-family:var(--font-heading);font-weight:800;font-size:36px;color:var(--text);line-height:1}
.shadow-part-btn.active .shadow-part-num{color:var(--red)}
.shadow-part-label{font-size:11px;color:var(--text2);letter-spacing:.5px}
.shadow-q-box{background:var(--bg2);border:1px solid var(--border);border-left:3px solid var(--red);padding:16px;margin-bottom:14px}
.shadow-q-label{font-size:10px;font-weight:900;letter-spacing:2px;text-transform:uppercase;color:var(--red);margin-bottom:8px}
.shadow-q-text{font-size:15px;color:var(--text);line-height:1.6;margin-bottom:6px}
.shadow-model-box{background:#0d0d0d;border:1px solid var(--border);border-left:3px solid var(--gold);padding:16px;margin-bottom:16px}
.shadow-model-label{font-size:10px;font-weight:900;letter-spacing:2px;text-transform:uppercase;color:var(--gold);margin-bottom:10px;display:flex;align-items:center;justify-content:space-between}
.shadow-model-text{font-size:14px;color:var(--text2);line-height:1.8}
.shadow-diff-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);margin-top:16px}
.shadow-diff-panel{background:var(--bg2);padding:16px}
.shadow-diff-title{font-size:10px;font-weight:900;letter-spacing:2px;text-transform:uppercase;margin-bottom:10px}
.shadow-diff-title.model{color:var(--gold)}
.shadow-diff-title.yours{color:var(--red)}
.shadow-diff-body{font-size:13px;line-height:1.9;color:var(--text2)}
.diff-match{color:#55B982;font-weight:700}
.diff-miss{color:#E06B6B;opacity:.85}
.shadow-score-bar{display:flex;align-items:center;gap:12px;margin-top:16px;padding:14px 16px;background:var(--bg2);border:1px solid var(--border)}
.shadow-score-num{font-family:var(--font-heading);font-weight:800;font-size:42px;letter-spacing:2px;line-height:1}
.shadow-score-num.high{color:#55B982}
.shadow-score-num.mid{color:var(--gold)}
.shadow-score-num.low{color:#E06B6B}
.shadow-score-label{font-size:12px;color:var(--text2);line-height:1.5}
.shadow-score-label strong{color:var(--text)}
@media (max-width:900px){.shadow-diff-grid{grid-template-columns:1fr}}

/* ── Recorder widget (shared markup between Shadowing here and, historically, graded
   screens in Speaking_Practice_Hub.html — this copy is Shadowing-only, no shared JS) ── */
@keyframes pulse-ring{0%{box-shadow:0 0 0 0 rgba(182,73,91,.5)}70%{box-shadow:0 0 0 16px rgba(182,73,91,0)}100%{box-shadow:0 0 0 0 rgba(182,73,91,0)}}
.recorder-wrap{background:var(--bg2);border:1px solid var(--border);border-top:3px solid var(--red);padding:28px;text-align:center;margin-bottom:16px;width:100%}
.mic-btn{width:76px;height:76px;border-radius:50%;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 12px;transition:all .2s}
.mic-btn.idle{background:var(--red);color:#fff}
.mic-btn.recording{background:#1a0505;color:var(--red);border:3px solid var(--red);animation:pulse-ring 1.2s infinite}
.rec-status{font-family:var(--font-heading);font-weight:800;font-size:12px;letter-spacing:2px;color:var(--text2);margin-bottom:20px}
.rec-status.live{color:var(--red)}
.rec-timer{font-family:var(--font-heading);font-weight:800;font-size:30px;letter-spacing:3px;color:var(--text);margin-bottom:4px}
.rec-bar{height:3px;background:#222;margin:0 auto 20px;width:220px;overflow:hidden}
.rec-bar-fill{height:100%;background:var(--red);width:0%;transition:width .1s linear}
.rec-btns{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.rec-btn{font-family:var(--font-heading);font-weight:800;font-size:13px;letter-spacing:2px;padding:11px 24px;border:none;cursor:pointer;transition:all .15s}
.rec-btn.red{background:var(--red);color:#fff}
.rec-btn.red:hover{background:var(--red-dark)}
.rec-btn.ghost{background:transparent;border:1px solid var(--border2);color:var(--text2)}
.rec-btn.ghost:hover{border-color:var(--border2);color:var(--text)}
.live-transcript{margin-top:14px;padding:10px 14px;background:#0a0a0a;border:1px dashed var(--border2);font-size:13px;color:var(--text2);min-height:40px;text-align:left;font-style:italic}
.live-transcript:empty::before{content:'Live transcript will appear here as you speak...';color:var(--text3);font-style:italic}
@media (max-width:900px){
  .recorder-wrap{padding:16px}
  .mic-btn{width:64px;height:64px;font-size:22px;margin-bottom:10px}
  .rec-timer{font-size:26px}
  .rec-bar{width:80%;max-width:200px}
  .rec-btn{font-size:12px;letter-spacing:1.5px;padding:10px 16px}
  .rec-btns{gap:6px}
  .live-transcript{font-size:12px;padding:8px 10px}
}

/* ── Foundations (ported from Speaking_Practice_Hub.html) ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.sec-hdr{display:flex;align-items:stretch;margin:24px 0 14px;border-left:4px solid var(--red)}
.sec-letter{background:var(--red);color:#fff;font-family:var(--font-heading);font-weight:800;font-size:28px;padding:4px 14px;line-height:1;display:flex;align-items:center;letter-spacing:2px}
.sec-info{background:var(--bg2);border:1px solid var(--border);border-left:none;padding:6px 14px;flex:1}
.sec-info h2{font-family:var(--font-heading);font-weight:800;font-size:18px;letter-spacing:2px;color:var(--text);line-height:1.2}
.sec-info p{font-size:11px;color:var(--text2);margin-top:2px}
.tab-row{display:flex;gap:0;border-bottom:1px solid var(--border);margin-bottom:20px;flex-wrap:wrap}
.tab-btn{font-family:var(--font-heading);font-weight:800;font-size:13px;letter-spacing:2px;padding:10px 18px;border:none;background:transparent;color:var(--text2);cursor:pointer;border-bottom:3px solid transparent;transition:all .15s;margin-bottom:-1px}
.tab-btn:hover{color:var(--text)}
.tab-btn.active{color:var(--text);border-bottom-color:var(--red)}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:fadeUp .2s ease both}
.phon-sub{margin-bottom:28px}
.phon-sub-title{font-family:var(--font-heading);font-weight:800;font-size:18px;letter-spacing:2px;color:var(--gold);margin:18px 0 10px;border-bottom:1px solid var(--border);padding-bottom:6px}
.phoneme-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1px;background:var(--border);margin-bottom:20px}
.phoneme-card{background:var(--bg2);padding:14px}
.ph-sym{font-family:var(--font-heading);font-weight:800;font-size:24px;color:var(--red);line-height:1;margin-bottom:6px;letter-spacing:0}
.ph-words{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:8px}
.ph-word-btn{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:600;padding:3px 8px;background:#0a0a0a;border:1px solid var(--border);color:var(--text);cursor:pointer;font-family:var(--font-body);transition:all .12s}
.ph-word-btn:hover{border-color:var(--red);color:var(--red)}
.ph-word-btn.speaking{background:var(--red);color:#fff;border-color:var(--red)}
.ph-word-btn .ph-play-icon{font-size:9px;opacity:.7}
.ph-note{font-size:11px;color:var(--text2);margin-bottom:4px;line-height:1.4}
.ph-bn{font-size:11px;color:var(--text3);line-height:1.4}
.contrast-card{background:var(--bg2);border:1px solid var(--border);padding:14px;margin-bottom:8px}
.contrast-pair{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;margin-bottom:8px}
.contrast-side{text-align:center}
.contrast-ipa{font-family:var(--font-heading);font-weight:800;font-size:16px;color:var(--red)}
.contrast-words{display:flex;flex-direction:column;gap:3px;margin-top:5px}
.contrast-vs{font-family:var(--font-heading);font-weight:800;color:var(--text2);font-size:14px;letter-spacing:2px}
.contrast-bn{font-size:11px;color:var(--text3);border-top:1px solid var(--border);padding-top:6px}
.stress-card{background:var(--bg2);border:1px solid var(--border);border-left:3px solid var(--gold);padding:12px 14px;margin-bottom:8px}
.stress-rule{font-family:var(--font-heading);font-weight:800;font-size:13px;letter-spacing:1px;color:var(--gold);margin-bottom:8px}
.stress-words{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:6px}
.stress-bn{font-size:11px;color:var(--text3)}
.sent-card{background:var(--bg2);border:1px solid var(--border);padding:12px 14px;margin-bottom:8px}
.sent-card-title{font-family:var(--font-heading);font-weight:800;font-size:13px;letter-spacing:1px;color:var(--red);margin-bottom:6px}
.sent-card-line{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:13px;color:var(--text);padding:4px 0;border-bottom:1px dashed var(--border)}
.sent-card-line:last-child{border-bottom:none}
.sent-card-line b{color:var(--gold)}
.sent-card-bn{font-size:11px;color:var(--text3);margin-top:6px}
.vtabs{display:flex;gap:0;flex-wrap:wrap;border-bottom:1px solid var(--border);margin-bottom:14px}
.vtab{font-family:var(--font-heading);font-weight:800;font-size:12px;letter-spacing:1.5px;padding:8px 14px;border:none;background:transparent;color:var(--text2);cursor:pointer;border-bottom:2px solid transparent;transition:all .12s;margin-bottom:-1px}
.vtab:hover{color:var(--text)}
.vtab.active{color:var(--text);border-bottom-color:var(--red)}
.vocab-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1px;background:var(--border)}
.vcard{background:var(--bg2);padding:14px}
.vc-word{font-family:var(--font-heading);font-weight:800;font-size:16px;letter-spacing:1px;color:var(--text);margin-bottom:2px}
.vc-phon{font-size:11px;color:var(--red);font-style:italic;margin-bottom:4px}
.vc-bn{font-size:12px;color:var(--text3);margin-bottom:4px}
.vc-def{font-size:11px;color:var(--text2);line-height:1.5;margin-bottom:6px}
.vc-ex{font-size:11px;color:var(--text2);font-style:italic;border-left:2px solid var(--border2);padding-left:8px}
.phrases-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.phrases-group-label{font-size:10px;font-weight:900;letter-spacing:2px;text-transform:uppercase;color:var(--text2);margin-bottom:8px}
.phrase-item{background:var(--bg2);border:1px solid var(--border);border-left:2px solid var(--red);padding:10px 12px;margin-bottom:6px}
.phrase-en{font-size:13px;font-style:italic;color:var(--text);margin-bottom:3px}
.phrase-bn{font-size:11px;color:var(--text3);margin-bottom:6px}
.phrase-play{display:inline-flex;align-items:center;gap:4px;font-family:var(--font-heading);font-weight:800;font-size:10px;letter-spacing:1.5px;padding:3px 8px;background:transparent;border:1px solid var(--border);color:var(--text2);cursor:pointer}
.phrase-play:hover{border-color:var(--red);color:var(--red)}
.phrase-play.speaking{background:var(--red);color:#fff;border-color:var(--red)}
.cue-prac-timer{background:var(--bg2);border:1px solid var(--border);border-top:3px solid var(--gold);padding:18px;text-align:center;margin-top:18px}
.cue-prac-timer-num{font-family:var(--font-heading);font-weight:800;font-size:48px;letter-spacing:3px;color:var(--text);line-height:1;margin-bottom:10px}
.cue-prac-timer-num.warn{color:var(--red)}
.cue-prac-timer-num.done{color:var(--gold)}
.cue-prac-timer-btn{font-family:var(--font-heading);font-weight:800;font-size:13px;letter-spacing:2px;padding:8px 24px;border:none;background:var(--red);color:#fff;cursor:pointer}
.cue-prac-timer-btn.stop{background:#444}
@media (max-width:900px){
  .phrases-grid{grid-template-columns:1fr}
}

/* ── Report-issue modal + toast (shared by all Speaking sub-tabs) ── */
.toast{position:fixed;bottom:20px;right:20px;background:var(--bg2);border:1px solid var(--border);color:var(--text);padding:11px 18px;font-family:var(--font-heading);font-weight:800;font-size:13px;letter-spacing:1.5px;z-index:999;opacity:0;transform:translateY(6px);transition:all .25s;pointer-events:none}
.toast.show{opacity:1;transform:translateY(0)}
.rep-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);z-index:500;display:none;align-items:center;justify-content:center;padding:16px}
.rep-overlay.show{display:flex}
.rep-modal{background:var(--bg2);border:1px solid var(--border);max-width:420px;width:100%;padding:20px}
.rep-title{font-family:var(--font-heading);font-weight:800;font-size:18px;letter-spacing:2px;margin-bottom:10px}
.rep-textarea{width:100%;min-height:80px;background:#111;border:1px solid var(--border);color:#fff;padding:10px;font-family:var(--font-body);font-size:13px;margin:10px 0}
.rep-btns{display:flex;gap:8px;justify-content:flex-end}
.rep-cancel,.rep-submit{font-size:11px;font-weight:700;padding:8px 14px;cursor:pointer;border:1px solid var(--border2);background:transparent;color:var(--text2)}
.rep-submit{background:var(--red);color:#fff;border-color:var(--red)}

@media (max-width:900px){
  .sb-topbar{height:auto;min-height:64px;align-items:flex-start;gap:12px;flex-direction:column;padding:14px 16px}
  .sb-toplinks{width:100%;overflow-x:auto}
  .sb-shell{width:min(100% - 24px,1180px);padding-top:24px}
  .sb-hero{grid-template-columns:1fr}
  .sb-hero-actions{justify-content:flex-start}
  h1{font-size:56px}
  .sb-card-grid,.sample-list{grid-template-columns:1fr}
  .filter-row{gap:5px;overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .filter-row::-webkit-scrollbar{height:0}
  .filter-chip{flex-shrink:0}
  .qb-q{font-size:13px}
  .qb-bn{font-size:11px}
}