:root{
  --bg:#faf6ed;
  --paper:#ffffff;
  --soft:#f3ecd9;
  --rule:#e6dcc1;
  --ink:#1f2024;
  --ink-soft:#5e5d57;
  --ink-mute:#9a958a;
  --line:#1f2024;
  --yellow:#f7c948;
  --yellow-deep:#e5a800;
  --yellow-soft:#fef3c7;
  --green:#2d8a3e;
  --green-soft:#dcecd9;
  --red:#cc3b2d;
  --red-soft:#fee2e2;
  --blue:#2563eb;
  --blue-soft:#e0ecff;
  --shadow: 3px 3px 0 var(--line);
  --shadow-sm: 2px 2px 0 var(--line);
  --serif:"Iowan Old Style","Georgia",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Inter","Helvetica Neue",sans-serif;
  --mono:"SF Mono","Menlo","Consolas",monospace;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.55}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}

.i{width:1em;height:1em;flex:none;vertical-align:-0.18em;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.i-lg{width:1.2em;height:1.2em}

/* ===== TOPBAR ===== */
.topbar{
  position:sticky;top:0;z-index:50;height:60px;
  display:flex;align-items:center;gap:18px;padding:0 22px;
  background:rgba(250,246,237,.92);backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--rule);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;width:198px}
.brand-mark{width:30px;height:30px;border-radius:8px;background:var(--ink);color:var(--yellow);display:grid;place-items:center;font-weight:800;border:1.5px solid var(--line);box-shadow:var(--shadow-sm)}
.breadcrumb{font-size:13.5px;color:var(--ink-soft);font-weight:500}
.breadcrumb b{color:var(--ink);font-weight:700}
.breadcrumb .sep{margin:0 8px;color:var(--ink-mute)}
.topbar .spacer,.modal-actions .spacer{flex:1}
.search{position:relative;width:280px}
.search input{
  width:100%;padding:8px 12px 8px 34px;border:1.5px solid var(--line);border-radius:8px;
  background:var(--paper);font-size:13.5px;outline:none;box-shadow:var(--shadow-sm);
}
.search > .i{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:14px;height:14px;color:var(--ink-soft);pointer-events:none}
.icon-btn{
  width:36px;height:36px;border-radius:8px;border:1.5px solid var(--line);
  background:var(--paper);display:grid;place-items:center;font-size:14px;box-shadow:var(--shadow-sm);
  cursor:pointer;
}
.icon-btn:hover{background:var(--soft)}

/* ===== LAYOUT ===== */
.layout{display:grid;grid-template-columns:220px 1fr 300px;gap:24px;padding:24px;max-width:1480px;margin:0 auto}
.main{min-width:0}

/* ===== SIDEBAR ===== */
.sidebar{position:sticky;top:84px;align-self:start;background:var(--paper);border:1.5px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow)}
.side-title{font-family:var(--serif);font-size:18px;margin:0 0 4px;letter-spacing:-.01em}
.side-sub{margin:0 0 14px;color:var(--ink-soft);font-size:12.5px}
.side-sub strong{color:var(--ink);font-family:var(--serif);font-weight:700}
.side-divider{display:flex;align-items:center;gap:8px;margin:14px 0 8px;font-size:10.5px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.side-divider::before,.side-divider::after{content:"";flex:1;height:1px;background:var(--rule)}
.side-lock{width:14px;height:14px;color:var(--ink-mute)}
.side-cta{margin-top:14px;width:100%;padding:9px 12px;border:1.5px dashed var(--rule);border-radius:8px;background:transparent;font-size:12px;font-weight:700;color:var(--ink-soft);text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.side-cta:hover{border-color:var(--line);color:var(--ink);background:var(--soft)}
.side-cta .i{width:14px;height:14px}
.side-link{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-radius:8px;font-size:14px;font-weight:600;color:var(--ink);cursor:pointer}
.side-link:hover{background:var(--soft)}
.side-link.active{background:var(--yellow);color:var(--ink);border:1.5px solid var(--line);box-shadow:var(--shadow-sm)}
.side-link.active:hover{background:var(--yellow);transform:translate(-1px,-1px);box-shadow:3px 3px 0 var(--line)}
.side-link.soon{color:var(--ink-mute);cursor:not-allowed}
.side-link.soon:hover{background:transparent}
.side-link .pill{font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:2px 7px;border-radius:999px;border:1.5px solid var(--rule);background:var(--soft);color:var(--ink-soft)}
.side-link.active .pill{background:var(--ink);color:var(--yellow);border-color:var(--line)}
.side-link .icon{margin-right:8px;display:inline-flex}
.side-link .label{flex:1}

/* ===== STATS ROW ===== */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:18px}
.stat{background:var(--paper);border:1.5px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow-sm)}
.stat .v{font-family:var(--serif);font-size:30px;font-weight:700;line-height:1;color:var(--ink);display:flex;align-items:center;gap:6px}
.stat .v small{font-size:14px;color:var(--ink-soft);font-weight:500}
.stat .l{font-size:12.5px;font-weight:700;margin-top:6px}
.stat .s{font-size:11.5px;color:var(--ink-soft)}
.stat.primary{background:var(--ink);color:var(--paper)}
.stat.primary .v{color:var(--yellow)}
.stat.primary .v small{color:#cdc8b9}
.stat.primary .s{color:#cdc8b9}
.stat.streak .v{color:var(--red)}
.stat.master .v{color:var(--green)}

/* ===== CARD ===== */
.card{background:var(--paper);border:1.5px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow);margin-bottom:18px}
.card .head{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.card h2{font-family:var(--serif);font-size:24px;margin:0;letter-spacing:-.01em}
.card .sub{color:var(--ink-soft);font-size:13px;margin:2px 0 0}
.card .sub .vn{color:var(--green);font-style:italic;font-family:var(--serif)}

.chip{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;background:var(--soft);border:1.5px solid var(--line);border-radius:999px;font-size:11.5px;font-weight:600;box-shadow:var(--shadow-sm)}
.chip.green{background:var(--green-soft)}
.chip.blue{background:var(--blue-soft)}

/* ===== IPA TABS ===== */
.ipa-tabs{display:flex;gap:2px;border-bottom:1.5px solid var(--rule);margin-bottom:16px;overflow-x:auto;scrollbar-width:none}
.ipa-tabs::-webkit-scrollbar{display:none}
.ipa-tab{flex-shrink:0;padding:10px 14px;font-size:13px;font-weight:600;color:var(--ink-soft);border-bottom:2px solid transparent;margin-bottom:-1.5px;cursor:pointer;background:none;white-space:nowrap}
.ipa-tab:hover{color:var(--ink)}
.ipa-tab.active{color:var(--ink);border-bottom-color:var(--ink)}
.ipa-tab .count{font-size:11px;color:var(--ink-soft);margin-left:6px;background:var(--soft);padding:1px 7px;border-radius:8px;border:1px solid var(--rule);font-weight:700}
.ipa-tab.active .count{background:var(--yellow);color:var(--ink);border-color:var(--line)}

/* ===== IPA GRID + CARD ===== */
.ipa-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.ipa-card{
  background:var(--paper);border:1.5px solid var(--line);border-radius:12px;
  padding:14px;display:flex;flex-direction:column;gap:8px;
  box-shadow:var(--shadow-sm);transition:transform .12s,box-shadow .12s;
}
.ipa-card:hover{transform:translate(-1px,-1px);box-shadow:var(--shadow)}
.ipa-card .row1{display:flex;justify-content:space-between;align-items:center}
.ipa-card .symbol{font-family:var(--serif);font-size:24px;font-weight:700;color:var(--blue);line-height:1}
.ipa-card .speaker{
  width:30px;height:30px;border-radius:8px;border:1.5px solid var(--line);
  background:var(--paper);display:grid;place-items:center;font-size:14px;box-shadow:var(--shadow-sm);cursor:pointer;
}
.ipa-card .speaker:hover{background:var(--yellow)}
.ipa-card .speaker[disabled]{opacity:.4;cursor:not-allowed}
.ipa-card .word{font-weight:700;font-size:15px;display:flex;align-items:center;gap:6px}
.ipa-card .word-speaker{
  width:22px;height:22px;border-radius:6px;border:1.25px solid var(--line);
  background:var(--paper);display:inline-grid;place-items:center;font-size:11px;cursor:pointer;
}
.ipa-card .word-speaker:hover{background:var(--yellow)}
.ipa-card .desc{font-size:12px;color:var(--ink-soft);line-height:1.45;margin:0}
.ipa-card .vn{font-size:12px;color:var(--green);font-style:italic;font-family:var(--serif);margin:0}

.ipa-card .actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto;align-items:center}
.ipa-card .pill{
  display:inline-flex;align-items:center;gap:5px;
  font-size:11.5px;font-weight:700;padding:4px 10px;border-radius:999px;
  border:1.5px solid var(--line);background:var(--paper);box-shadow:1px 1px 0 var(--line);cursor:pointer;
}
.ipa-card .pill.mini{padding:2px 7px;font-size:10.5px;box-shadow:none}
.ipa-card .pill.mini .i{width:12px;height:12px}
.ipa-card .pill:hover{background:var(--soft)}
.ipa-card .record::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--red)}
.ipa-card .pill.stop{background:var(--red);color:#fff;border-color:var(--line)}
.ipa-card .pill.stop:hover{background:#a82a1f}

/* score pill tiers — apply ONE of: success | warning | danger */
.ipa-card .score{padding:4px 10px;cursor:default}
.ipa-card .score:hover{background:inherit}
.ipa-card .score.success{background:var(--green-soft);color:#0f5132;border-color:#0f5132}
.ipa-card .score.success::before{content:"✓";font-weight:900}
.ipa-card .score.warning{background:var(--yellow-soft);color:#78350f;border-color:#a16207}
.ipa-card .score.warning::before{content:"!";font-weight:900;font-style:italic}
.ipa-card .score.danger{background:var(--red-soft);color:#7f1d1d;border-color:#991b1b}
.ipa-card .score.danger::before{content:"!";font-weight:900;font-style:italic}
.ipa-card .score.silent,.ipa-card .score.nomatch,.ipa-card .score.error{
  background:var(--soft);color:var(--ink-soft);border-color:var(--ink-soft);
}
.ipa-card .score.silent::before,.ipa-card .score.nomatch::before,.ipa-card .score.error::before{content:"⚠";font-weight:900}

/* Recording-state row (in-place swap of .actions) */
.ipa-card .recording-row{
  display:flex;align-items:center;gap:8px;margin-top:auto;
  padding:6px 10px;border-radius:8px;background:var(--soft);border:1.5px solid var(--line);
}
.vu-bar{flex:1;height:8px;background:var(--paper);border:1px solid var(--line);border-radius:4px;overflow:hidden;min-width:0}
.vu-bar > span{display:block;height:100%;background:var(--red);transition:width .1s linear;width:0%}
.rec-time{font-family:var(--mono);font-size:11.5px;font-weight:700;color:var(--red);min-width:34px;text-align:right}

/* Score detail row (revealed when score exists) */
.ipa-card .score-detail{margin-top:4px;padding:8px 10px;border-radius:8px;background:var(--soft);border:1px solid var(--rule)}
.ipa-card .score-detail .score-row{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.ipa-card .score-bar{flex:1;height:8px;background:var(--paper);border:1.5px solid var(--line);border-radius:4px;overflow:hidden;min-width:0}
.ipa-card .score-bar > span{display:block;height:100%;background:var(--green);width:0%}
.ipa-card .score-bar.warning > span{background:var(--yellow-deep)}
.ipa-card .score-bar.danger > span{background:var(--red)}
.ipa-card .score-num{font-family:var(--serif);font-weight:700;font-size:14px;min-width:24px;text-align:right}
.ipa-card .score-tip{margin:0;font-size:11.5px;color:var(--ink-soft);font-style:italic;line-height:1.4}
.ipa-card .score-tip b{color:var(--ink);font-style:normal}
.ipa-card .score-tip .vn{color:var(--green);font-family:var(--serif);display:block;margin-top:2px}

/* ===== COMMON MISTAKES ===== */
.compare{display:grid;grid-template-columns:1fr 1fr;border:1.5px solid var(--line);border-radius:12px;overflow:hidden}
.compare > div{padding:16px 18px}
.compare > div + div{border-left:1.5px solid var(--line)}
.compare h4{margin:0 0 10px;font-size:11.5px;color:var(--ink-soft);font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.compare ul{list-style:none;padding:0;margin:0;display:grid;gap:7px;font-size:13.5px}
.compare li{padding-left:24px;position:relative;line-height:1.5}
.compare .left li::before{content:"✗";color:var(--red);position:absolute;left:0;font-weight:700;font-size:14px}
.compare .right li::before{content:"✓";color:var(--green);position:absolute;left:0;font-weight:700;font-size:14px}

/* ===== RIGHT RAIL ===== */
.rail{position:sticky;top:84px;align-self:start;display:grid;gap:14px}
.rail .card{margin-bottom:0;padding:18px}

.ring{
  --pct:0%;
  width:130px;height:130px;margin:6px auto 14px;border-radius:50%;
  background:conic-gradient(var(--green) 0% var(--pct), var(--soft) var(--pct) 100%);
  display:grid;place-items:center;position:relative;border:1.5px solid var(--line);box-shadow:var(--shadow-sm);
}
.ring::before{content:"";width:74%;height:74%;background:var(--paper);border-radius:50%;position:absolute;border:1.5px solid var(--line)}
.ring span{position:relative;font-family:var(--serif);font-weight:700;font-size:24px;text-align:center}
.ring small{display:block;font-weight:500;font-size:11px;color:var(--ink-soft);font-family:var(--sans)}

.rail .row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--rule);font-size:13px}
.rail .row:last-of-type{border-bottom:0}
.rail .row strong{font-family:var(--serif);font-weight:700}

.rail .actions{display:grid;gap:8px;margin-top:12px}
.rail .actions button{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 12px;border-radius:8px;border:1.5px solid var(--line);
  background:var(--paper);font-size:12.5px;font-weight:700;box-shadow:var(--shadow-sm);cursor:pointer;
}
.rail .actions button > span{display:inline-flex;align-items:center;gap:6px}
.rail .actions .primary{background:var(--yellow)}
.rail .actions button:hover{transform:translate(-1px,-1px);box-shadow:3px 3px 0 var(--line)}

/* mascot card — avatar in a round frame, speech bubble below */
.mascot{text-align:center}
.avatar{
  display:block;width:110px;height:110px;margin:0 auto 12px;
  border-radius:50%;object-fit:cover;object-position:center 30%;
  border:1.5px solid var(--line);box-shadow:var(--shadow);background:var(--soft);
}
.mascot .speech{
  background:var(--soft);border:1.5px solid var(--line);border-radius:14px;
  padding:10px 12px;font-size:13px;display:block;text-align:left;box-shadow:var(--shadow-sm);
}
.mascot .speech .vn{color:var(--green);font-style:italic;font-family:var(--serif);display:block;margin-top:4px;font-size:12px}

/* ===== AUTH MODAL + RECORDINGS MODAL ===== */
.auth-modal{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:16px}
.auth-modal[hidden]{display:none}
.auth-modal::before{content:"";position:absolute;inset:0;background:rgba(28,27,24,.45);backdrop-filter:blur(4px)}
.auth-card{
  position:relative;background:var(--paper);border:1.5px solid var(--line);border-radius:14px;
  padding:24px 26px;max-width:380px;width:100%;box-shadow:6px 6px 0 var(--line);
}
.auth-card h3{font-family:var(--serif);font-size:22px;margin:0 0 6px;letter-spacing:-.01em}
.auth-card p{margin:0 0 16px;color:var(--ink-soft);font-size:13.5px}
.auth-card p .vn{color:var(--green);font-style:italic;font-family:var(--serif);display:block;margin-top:4px;font-size:12.5px}
.auth-card input{
  width:100%;padding:10px 12px;border:1.5px solid var(--line);border-radius:8px;
  font-size:14px;margin-bottom:14px;box-shadow:var(--shadow-sm);outline:none;background:var(--paper);
}
.auth-card input:focus{border-color:var(--yellow-deep);box-shadow:2px 2px 0 var(--yellow-deep)}
.auth-card .btn{
  width:100%;padding:10px 14px;border:1.5px solid var(--line);border-radius:8px;
  background:var(--yellow);font-weight:700;font-size:14px;cursor:pointer;box-shadow:var(--shadow-sm);
}
.auth-card .btn:hover{background:var(--yellow-deep)}
.auth-card .err{color:var(--red);font-size:12px;margin-top:-8px;margin-bottom:10px;display:none}
.auth-card .err[data-visible="true"]{display:block}

.recordings-card{max-width:680px}
.recordings-card .modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.recordings-card .modal-head h3{margin:0}
.recordings-card .modal-actions{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:13px;color:var(--ink-soft)}
.recordings-card .btn-sm{
  padding:7px 12px;border:1.5px solid var(--line);border-radius:8px;background:var(--paper);
  font-weight:700;font-size:12.5px;box-shadow:var(--shadow-sm);cursor:pointer;
}
.recordings-card .btn-sm:hover{background:var(--soft)}
.recordings-grid{display:grid;gap:10px;max-height:60vh;overflow-y:auto}
.recordings-row{
  display:flex;align-items:center;gap:10px;padding:10px 12px;
  border:1.5px solid var(--line);border-radius:10px;background:var(--paper);box-shadow:var(--shadow-sm);
}
.recordings-row .rsym{font-family:var(--serif);font-weight:700;color:var(--blue);min-width:46px}
.recordings-row .rword{font-weight:700;min-width:80px}
.recordings-row audio{flex:1;height:32px;min-width:0}
.recordings-row .rdel{
  width:30px;height:30px;border:1.5px solid var(--line);border-radius:8px;
  background:var(--paper);display:grid;place-items:center;cursor:pointer;
}
.recordings-row .rdel:hover{background:var(--red-soft)}
.recordings-row .rdel .i{width:14px;height:14px}

/* ===== RESPONSIVE ===== */
@media (max-width:1080px){
  .layout{grid-template-columns:200px 1fr;gap:18px}
  .rail{display:none}
}
@media (max-width:760px){
  .layout{grid-template-columns:1fr;padding:14px;gap:14px}
  .sidebar{position:static}
  .topbar{padding:0 14px;gap:10px}
  .brand{width:auto}
  .breadcrumb{display:none}
  .search{width:auto;flex:1}
  .compare{grid-template-columns:1fr}
  .compare > div + div{border-left:0;border-top:1.5px solid var(--line)}
}