:root{
  --ink:#111A22; --ink-soft:#4A5561; --ink-faint:#8A939C;
  --paper:#FBFAF6; --rule:#DFDCD2; --sunk:#EFEDE6;
  --seal:#C0392F; --seal-deep:#9E2D25;
  --kr:'Noto Serif KR','Apple SD Gothic Neo','Malgun Gothic','Nanum Gothic',serif;
  --ui:'Archivo',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --tap:200ms cubic-bezier(.2,.8,.2,1);

  /* ---------- safe area: declared here, nowhere else ----------
     env() appears exactly twice in this file, both on the next two lines.
     Every edge inset in the layout comes from .phone's padding below.
     Do not add env() to a component. If something sits near an edge and
     collides with a system bar, the fix belongs on .phone, not on the
     component — otherwise the insets drift apart again.               */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
/* Nothing in this app should ever scroll sideways. Anything wider than the
   column is a bug, not something to swipe past — the guard is here at the
   root so a new component cannot reintroduce it further down. */
html,body{height:100%;max-width:100%;overflow-x:hidden}
body{background:var(--paper);color:var(--ink);font-family:var(--ui);
  display:flex;justify-content:center;overscroll-behavior:none;-webkit-text-size-adjust:100%}

/* The one place that knows about system bars.
   Fixed height (not min-height) so the column is bounded and .stage — the
   only scroller — absorbs tall content. With min-height the tab bar gets
   pushed past the bottom of the screen by a long sentence. */
.phone{width:100%;max-width:430px;height:100dvh;display:flex;flex-direction:column;
  background:var(--paper);position:relative;overflow:hidden;
  padding-top:var(--safe-top);padding-bottom:var(--safe-bottom)}

.topbar{display:flex;align-items:center;justify-content:space-between;padding:15px 18px 13px;border-bottom:1px solid var(--rule)}
.brand{display:flex;align-items:center;gap:8px}
/* long-pressed to unlock dev mode — must not select or pop a callout */
.seal-mark{width:23px;height:23px;border-radius:5px;background:var(--seal);display:grid;place-items:center;
  font-family:var(--kr);font-size:13px;font-weight:700;color:#fff;line-height:1;
  user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.brand span{font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft)}
.credits{font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);font-variant-numeric:tabular-nums}
.credits b{color:var(--ink);font-weight:700}

.strip{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 18px;border-bottom:1px solid var(--rule)}
.strip .where{font-size:10.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-faint);display:flex;align-items:center;gap:8px;min-width:0}
.strip .where b{color:var(--ink)}
.strip .where .dot{width:3px;height:3px;border-radius:50%;background:var(--rule);flex:none}
.strip .where .set{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.browse-btn{flex:none;border:1px solid var(--rule);background:none;border-radius:100px;
  padding:7px 14px;font-family:inherit;font-size:11px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink);cursor:pointer;min-height:34px}
.browse-btn:active{background:var(--sunk)}

/* min-height:0 lets this flex item shrink below its content height;
   without it overflow-y never engages and the column grows instead. */
.stage{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;padding:20px 18px 6px;
  -webkit-overflow-scrolling:touch}

.tiles{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 14px;align-items:flex-end}
.tile{position:relative;width:clamp(44px,12.6vw,54px);height:clamp(50px,14vw,60px);
  border-radius:9px;border:1px solid var(--rule);background:transparent;display:grid;place-items:center;
  font-family:var(--kr);font-weight:500;font-size:clamp(24px,6.9vw,29px);line-height:1;color:var(--ink);
  transition:background-color 620ms ease,color 620ms ease,border-color 620ms ease}
.tile.space{width:8px;border-color:transparent}
.tile.punct{width:20px;border-color:transparent;color:var(--ink-faint);font-weight:700}
.tile .num{position:absolute;bottom:4px;left:0;right:0;font-family:var(--ui);font-size:9px;font-weight:700;
  letter-spacing:.05em;opacity:0;transition:opacity 460ms ease;font-variant-numeric:tabular-nums}
.tile.flag{padding-bottom:6px}
.tile.flag .num{opacity:.85}

.meta-row{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}
.chip{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--rule);border-radius:100px;
  padding:5px 12px 5px 9px;font-size:11.5px;font-weight:600;color:var(--ink-soft)}
.chip svg{display:block;flex:none}
.chip.q{border-color:#E8C4BF;color:var(--seal)}

.romanized{font-size:14.5px;font-weight:500;color:var(--ink-soft);line-height:1.4}
.gloss{font-size:13.5px;color:var(--ink-faint);margin-top:5px;line-height:1.45}
.toneHint{font-size:13px;color:var(--ink-soft);margin-top:7px;line-height:1.45}
.toneHint b{color:var(--ink);font-weight:700}

.pair-link{display:none;margin-top:13px;width:100%;text-align:left;cursor:pointer;
  border:1px solid var(--rule);border-radius:11px;background:none;padding:11px 13px;font-family:inherit}
.pair-link.show{display:block}
.pair-link:active{background:var(--sunk)}
.pair-link .pl-lab{font-size:10px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint)}
.pair-link .pl-txt{font-family:var(--kr);font-size:17px;font-weight:500;color:var(--ink);margin-top:4px}

.listen{margin-top:14px;align-self:flex-start;display:inline-flex;align-items:center;gap:10px;
  min-height:46px;padding:0 20px 0 16px;background:none;border:1.5px solid var(--rule);border-radius:100px;
  font-family:inherit;font-size:13.5px;font-weight:600;color:var(--ink-soft);cursor:pointer;
  transition:border-color var(--tap),color var(--tap),background-color var(--tap)}
.listen:active{background:var(--sunk)}
.listen:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
.listen .tri{width:0;height:0;flex:none;border-left:9px solid currentColor;border-top:6px solid transparent;border-bottom:6px solid transparent}
.listen .bars{display:none;gap:2.5px;align-items:flex-end;height:15px;width:17px;flex:none}
.listen .bars i{width:2.5px;background:currentColor;border-radius:2px;animation:eq .85s ease-in-out infinite}
.listen .bars i:nth-child(2){animation-delay:.18s}
.listen .bars i:nth-child(3){animation-delay:.36s}
@keyframes eq{0%,100%{height:5px}50%{height:15px}}
.listen.playing{border-color:var(--ink);color:var(--ink)}
.listen.playing .tri{display:none}
.listen.playing .bars{display:flex}
.audio-note{margin-top:8px;font-size:12px;line-height:1.45;color:var(--seal);display:none}
.audio-note.show{display:block}

.result{margin-top:20px;padding-top:18px;border-top:1px solid var(--rule);
  opacity:0;transform:translateY(10px);pointer-events:none;transition:opacity 500ms ease,transform 500ms ease}
.result.show{opacity:1;transform:none;pointer-events:auto}
.score-row{display:flex;align-items:flex-end;gap:14px}
.score-num{font-size:58px;font-weight:700;line-height:.86;letter-spacing:-.045em;font-variant-numeric:tabular-nums}
.score-meta{padding-bottom:6px}
.score-label{font-size:10.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint)}
.score-verdict{font-size:14px;font-weight:600;margin-top:3px;line-height:1.3}
/* the one line that says what the final contour did */
.into-note{margin-top:13px;padding-left:11px;border-left:2.5px solid var(--rule);
  font-size:13.5px;line-height:1.5;color:var(--ink-soft);display:none}
.into-note.show{display:block}
.into-note.miss{border-left-color:var(--seal);color:var(--ink)}
.note{margin-top:14px;font-size:14px;line-height:1.55;color:var(--ink-soft)}
.note .syl{font-family:var(--kr);font-size:17px;font-weight:700;color:var(--ink)}
.l1box{margin-top:13px;border-left:2.5px solid var(--seal);padding:2px 0 2px 13px;display:none}
.l1box.show{display:block}
.l1box .l1-lab{font-size:9.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--seal)}
.l1box .l1-txt{font-size:13.5px;line-height:1.55;color:var(--ink-soft);margin-top:5px}
.l1box .l1-txt + .l1-txt{margin-top:9px}
.l1box b{color:var(--ink);font-weight:700}
.l1box .syl{font-family:var(--kr);font-size:16px;font-weight:700;color:var(--ink)}
.actions{display:flex;gap:9px;margin-top:17px}
.btn{flex:1;min-height:48px;border-radius:10px;font-family:inherit;font-size:13.5px;font-weight:600;
  cursor:pointer;border:1.5px solid var(--rule);background:none;color:var(--ink);
  transition:background-color var(--tap),border-color var(--tap)}
.btn:active{background:var(--sunk)}
.btn:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
.btn.primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn.primary:active{background:#000}

.record-zone{flex:none;padding:12px 18px 18px;display:flex;flex-direction:column;align-items:center;gap:11px}
.seal-btn{width:88px;height:88px;border-radius:50%;background:var(--seal);border:none;cursor:pointer;
  display:grid;place-items:center;position:relative;box-shadow:0 2px 0 var(--seal-deep);
  transition:transform 140ms ease,box-shadow 140ms ease,background-color var(--tap)}
.seal-btn:active{transform:translateY(2px);box-shadow:0 0 0 var(--seal-deep)}
.seal-btn:focus-visible{outline:3px solid var(--ink);outline-offset:4px}
.seal-btn svg{display:block}
.seal-btn::after{content:'';position:absolute;inset:-9px;border-radius:50%;border:2px solid var(--seal);opacity:0}
.seal-btn.rec{background:var(--seal-deep)}
.seal-btn.rec::after{animation:ping 1.1s ease-out infinite}
@keyframes ping{0%{transform:scale(1);opacity:.55}100%{transform:scale(1.36);opacity:0}}
.hint{font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--ink-faint);height:18px}
.hint.live{color:var(--seal)}

/* A-4 mic readout — dev only, so it can never affect the shipped layout */
.micdev{display:none}
body.dev .micdev{display:block;width:100%;max-width:300px;margin-top:2px}
.micdev-bar{height:5px;border-radius:3px;background:var(--sunk);overflow:hidden}
.micdev-bar i{display:block;height:100%;width:0;background:var(--rule);transition:width 60ms linear}
.micdev-txt{margin-top:4px;font-size:9.5px;line-height:1.5;color:var(--ink-faint);
  font-variant-numeric:tabular-nums;white-space:pre-line;text-align:center}

/* The sim row always exists because .buildtag lives in it and the build
   number is how a deploy gets confirmed on the phone. Only the SIMULATE
   controls hide; body.dev brings them back. See DEV_UNLOCK in app.js. */
.sim{flex:none;border-top:1px dashed var(--rule);padding:6px 18px 8px;display:flex;align-items:center;gap:7px;flex-wrap:wrap}
body.dev .sim{padding:10px 18px 12px}
.sim-label,.sim-btn{display:none}
body.dev .sim-label{display:block}
body.dev .sim-btn{display:block}
.sim-label{font-size:9.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint)}
.sim-btn{border:1px solid var(--rule);background:none;border-radius:100px;padding:6px 11px;
  font-family:inherit;font-size:11px;font-weight:600;color:var(--ink-faint);cursor:pointer}
.sim-btn.on{background:var(--ink);border-color:var(--ink);color:var(--paper)}
/* in normal flow at the end of the sim row — no fixed position, no offsets */
.buildtag{margin-left:auto;font-family:var(--ui);font-size:9px;font-weight:600;letter-spacing:.08em;
  color:var(--ink-faint);opacity:.5;pointer-events:none;font-variant-numeric:tabular-nums}

.tabs{flex:none;display:flex;border-top:1px solid var(--rule);padding:7px 0 11px}
.tab{flex:1;background:none;border:none;cursor:pointer;min-height:52px;font-family:inherit;font-size:10.5px;
  font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-faint);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.tab .ico{font-family:var(--kr);font-size:17px;font-weight:500;line-height:1;letter-spacing:0;text-transform:none}
.tab[aria-selected="true"]{color:var(--ink)}

.browse{position:absolute;inset:0;background:var(--paper);z-index:20;display:flex;flex-direction:column;
  transform:translateY(100%);transition:transform 320ms cubic-bezier(.2,.8,.2,1);visibility:hidden}
.browse.open{transform:none;visibility:visible}
.b-head{display:flex;align-items:center;justify-content:space-between;padding:15px 18px 13px;border-bottom:1px solid var(--rule)}
.b-title{font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase}
.b-close{border:none;background:none;cursor:pointer;font-size:23px;line-height:1;color:var(--ink-soft);padding:6px 10px;min-height:40px}
/* wraps instead of scrolling: the row used to run off the right edge and
   the last collection could only be reached by dragging the screen */
.b-cols{display:flex;flex-wrap:wrap;gap:7px;padding:13px 18px;border-bottom:1px solid var(--rule)}
/* name on its own line, progress underneath — one line could not hold both */
.b-col{flex:0 1 auto;border:1px solid var(--rule);background:none;border-radius:12px;padding:7px 13px;
  font-family:inherit;font-size:12.5px;font-weight:600;color:var(--ink-soft);cursor:pointer;
  display:flex;flex-direction:column;align-items:flex-start;gap:1px;min-height:44px;justify-content:center;
  text-align:left;max-width:100%}
.b-col.on{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.b-col .n{font-size:10px;font-weight:600;opacity:.6;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.b-blurb{padding:14px 18px 2px;font-size:13px;line-height:1.5;color:var(--ink-faint)}
.b-list{flex:1;min-height:0;overflow-y:auto;padding:6px 18px 26px;-webkit-overflow-scrolling:touch}
.b-set{font-size:10px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint);margin:17px 0 8px}
.b-item{width:100%;text-align:left;border:1px solid var(--rule);border-radius:11px;background:none;
  padding:12px 13px;margin-bottom:7px;cursor:pointer;display:block;font-family:inherit}
.b-item:active{background:var(--sunk)}
.b-item .k{font-family:var(--kr);font-size:18px;font-weight:500;color:var(--ink);line-height:1.35}
.b-item .r{font-size:11.5px;color:var(--ink-faint);margin-top:3px}
/* without the meaning the list is 15 Korean strings and no way to choose */
.b-item .g{font-size:12.5px;color:var(--ink-soft);margin-top:5px;line-height:1.4}
.b-item .t{display:flex;gap:6px;margin-top:7px;flex-wrap:wrap}
.b-item .t span{font-size:9.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-faint);border:1px solid var(--rule);border-radius:100px;padding:3px 8px}
.b-item .t span.q{color:var(--seal);border-color:#E8C4BF}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition-duration:1ms!important}}

/* ---------- update bar ----------
   position:fixed escapes .phone's padding box, so this is the one element
   that has to add the bottom inset itself. It reads the same variable. */
.update-bar{
  position:fixed;left:50%;transform:translateX(-50%);
  bottom:calc(var(--safe-bottom) + 14px);z-index:60;
  border:none;border-radius:100px;cursor:pointer;
  background:var(--ink);color:var(--paper);
  font-family:var(--ui);font-size:12.5px;font-weight:700;
  letter-spacing:.04em;padding:12px 20px;
  box-shadow:0 3px 14px rgba(17,26,34,.28);
}
.update-bar:active{background:#000}