/* Tap-a-word dictionary (define.js). Tokens fall back to the light palette so
   the sheet reads correctly on pages that never load theme.css. */
.dfn-root{position:fixed;inset:0;z-index:100000;display:flex;align-items:center;justify-content:center;padding:16px;
  font-family:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--tt-ink,#101828);
  --dfn-accent:#6d5df5;--dfn-accent-2:#22c1ee;--dfn-glow:rgba(109,93,245,.35)}
.dfn-root[hidden]{display:none}
.dfn-backdrop{position:absolute;inset:0;background:rgba(10,8,30,.42);backdrop-filter:blur(10px) saturate(1.2);-webkit-backdrop-filter:blur(10px) saturate(1.2);
  opacity:0;transition:opacity .28s ease}
.dfn-root.is-open .dfn-backdrop{opacity:1}
.dfn-sheet{position:relative;width:min(560px,100%);max-height:min(86vh,860px);display:flex;flex-direction:column;overflow:hidden;
  border-radius:28px;background:var(--tt-surface,#fff);border:1px solid var(--tt-line,rgba(16,24,40,.08));
  box-shadow:0 40px 90px -20px rgba(20,10,60,.45),0 0 0 1px rgba(255,255,255,.04) inset;
  opacity:0;transform:translateY(22px) scale(.97);transition:opacity .32s cubic-bezier(.2,.8,.2,1),transform .42s cubic-bezier(.2,.9,.25,1.15)}
.dfn-root.is-open .dfn-sheet{opacity:1;transform:none}
.dfn-sheet::before{content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;z-index:0;
  background:radial-gradient(120% 60% at 0% 0%,rgba(109,93,245,.16),transparent 60%),radial-gradient(90% 50% at 100% 0%,rgba(34,193,238,.14),transparent 60%)}
.dfn-head{position:relative;z-index:1;padding:26px 26px 14px;display:flex;align-items:flex-start;gap:14px}
.dfn-head-main{flex:1;min-width:0}
.dfn-eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:.66rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--dfn-accent);margin-bottom:6px}
.dfn-eyebrow i{font-size:.7rem}
.dfn-word{font-size:clamp(1.7rem,4.6vw,2.3rem);font-weight:800;letter-spacing:-.03em;line-height:1.05;margin:0;word-break:break-word;
  background:linear-gradient(92deg,var(--tt-ink,#101828) 55%,var(--dfn-accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.dfn-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;min-height:26px}
.dfn-ipa{font-family:"Charis SIL","Doulos SIL","Gentium Plus","Noto Serif",Georgia,serif;font-size:.98rem;color:var(--tt-muted,#667085)}
.dfn-pos{padding:3px 9px;border-radius:999px;font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;
  color:var(--dfn-accent);background:color-mix(in srgb,var(--dfn-accent) 12%,transparent)}
.dfn-iconbtn{flex:none;width:38px;height:38px;border-radius:14px;border:1px solid var(--tt-line,rgba(16,24,40,.08));background:var(--tt-surface-2,rgba(16,24,40,.04));
  color:var(--tt-muted,#667085);display:grid;place-items:center;cursor:pointer;font-size:.95rem;transition:transform .15s ease,background .15s ease,color .15s ease;-webkit-tap-highlight-color:transparent}
.dfn-iconbtn:hover{transform:translateY(-1px);color:var(--tt-ink,#101828)}
.dfn-iconbtn:active{transform:scale(.94)}
.dfn-iconbtn.is-speaking{color:#fff;background:linear-gradient(135deg,var(--dfn-accent),var(--dfn-accent-2));border-color:transparent;box-shadow:0 8px 20px var(--dfn-glow)}
.dfn-head-actions{display:flex;gap:8px}
.dfn-body{position:relative;z-index:1;flex:1;overflow:auto;padding:0 26px 26px;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.dfn-body::-webkit-scrollbar{width:6px}.dfn-body::-webkit-scrollbar-thumb{background:var(--tt-line,rgba(16,24,40,.12));border-radius:99px}

/* AI best-fit card */
.dfn-ai{position:relative;margin:4px 0 20px;padding:18px 18px 16px;border-radius:20px;overflow:hidden;
  background:linear-gradient(135deg,color-mix(in srgb,var(--dfn-accent) 13%,var(--tt-surface,#fff)),color-mix(in srgb,var(--dfn-accent-2) 12%,var(--tt-surface,#fff)));
  border:1px solid color-mix(in srgb,var(--dfn-accent) 28%,transparent)}
.dfn-ai::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);
  transform:translateX(-120%);animation:dfn-sheen 2.6s ease-in-out 1}
.dfn-ai-head{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.dfn-ai-chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:.66rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#fff;
  background:linear-gradient(135deg,var(--dfn-accent),var(--dfn-accent-2));box-shadow:0 6px 16px var(--dfn-glow)}
.dfn-ai-chip i{animation:dfn-twinkle 1.8s ease-in-out infinite}
.dfn-ai-conf{margin-left:auto;font-size:.66rem;font-weight:700;color:var(--tt-muted,#667085);display:inline-flex;align-items:center;gap:6px}
.dfn-ai-conf b{display:inline-block;width:46px;height:5px;border-radius:99px;background:var(--tt-line,rgba(16,24,40,.1));overflow:hidden;position:relative}
.dfn-ai-conf b::after{content:"";position:absolute;inset:0;width:var(--w,0%);border-radius:inherit;background:linear-gradient(90deg,var(--dfn-accent),var(--dfn-accent-2));transition:width .6s ease}
.dfn-ai-meaning{font-size:1.08rem;line-height:1.5;font-weight:600;margin:0;color:var(--tt-ink,#101828)}
.dfn-ai-example{margin:10px 0 0;padding-left:12px;border-left:3px solid color-mix(in srgb,var(--dfn-accent) 45%,transparent);font-size:.92rem;line-height:1.45;color:var(--tt-muted,#475467);font-style:italic}
.dfn-ai-example mark,.dfn-sense mark{background:color-mix(in srgb,var(--dfn-accent) 18%,transparent);color:inherit;border-radius:4px;padding:0 3px;font-style:normal;font-weight:700}
.dfn-ai-tip{margin:10px 0 0;display:flex;gap:8px;align-items:flex-start;font-size:.82rem;line-height:1.4;color:var(--tt-muted,#475467)}
.dfn-ai-tip i{color:var(--dfn-accent);margin-top:2px}
.dfn-ai-sense{margin-top:10px;font-size:.74rem;font-weight:700;color:var(--dfn-accent);display:inline-flex;align-items:center;gap:6px;cursor:pointer;background:none;border:0;padding:0}
.dfn-ai-sense:hover{text-decoration:underline}
.dfn-ai.is-loading .dfn-ai-meaning,.dfn-ai.is-loading .dfn-ai-example{color:transparent;border-color:transparent}
.dfn-skel{display:block;height:14px;border-radius:7px;margin:7px 0;background:linear-gradient(90deg,rgba(120,110,200,.12),rgba(120,110,200,.26),rgba(120,110,200,.12));background-size:200% 100%;animation:dfn-shimmer 1.3s linear infinite}
.dfn-ai-thinking{font-size:.8rem;color:var(--tt-muted,#667085);display:flex;align-items:center;gap:8px}
.dfn-ai-thinking span{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--dfn-accent);animation:dfn-bounce 1s ease-in-out infinite}
.dfn-ai-thinking span:nth-child(2){animation-delay:.15s}.dfn-ai-thinking span:nth-child(3){animation-delay:.3s}
.dfn-ai.is-error{background:var(--tt-surface-2,rgba(16,24,40,.04));border-color:var(--tt-line,rgba(16,24,40,.08))}

/* senses */
.dfn-section{margin-top:18px}
.dfn-section-title{display:flex;align-items:center;gap:8px;font-size:.7rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--tt-muted,#667085);margin:0 0 10px}
.dfn-section-title i{font-size:.75rem}
.dfn-senses{list-style:none;margin:0;padding:0;counter-reset:dfn}
.dfn-sense{position:relative;display:grid;grid-template-columns:30px 1fr;gap:10px;padding:10px 12px;border-radius:14px;margin-bottom:4px;
  transition:background .2s ease,border-color .2s ease;border:1px solid transparent}
.dfn-sense:hover{background:var(--tt-surface-2,rgba(16,24,40,.03))}
.dfn-sense.is-pick .dfn-sense-def{padding-right:72px}
.dfn-sense.is-pick{background:color-mix(in srgb,var(--dfn-accent) 9%,transparent);border-color:color-mix(in srgb,var(--dfn-accent) 35%,transparent)}
.dfn-sense-n{counter-increment:dfn;width:26px;height:26px;border-radius:9px;display:grid;place-items:center;font-size:.72rem;font-weight:800;
  background:var(--tt-surface-2,rgba(16,24,40,.06));color:var(--tt-muted,#667085)}
.dfn-sense.is-pick .dfn-sense-n{color:#fff;background:linear-gradient(135deg,var(--dfn-accent),var(--dfn-accent-2));box-shadow:0 6px 14px var(--dfn-glow)}
.dfn-sense-n::before{content:counter(dfn)}
.dfn-sense-def{font-size:.95rem;line-height:1.5;margin:0}
.dfn-sense-pos{font-size:.66rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--dfn-accent);margin-right:6px}
.dfn-sense-label{font-size:.72rem;font-weight:600;color:var(--tt-muted,#667085);margin-right:6px}
.dfn-sense-ex{margin:4px 0 0;font-size:.84rem;line-height:1.4;color:var(--tt-muted,#667085);font-style:italic}
.dfn-sense-fit{position:absolute;top:8px;right:10px;font-size:.62rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--dfn-accent)}
.dfn-more{margin:6px 0 0 40px;background:none;border:0;padding:0;font-size:.8rem;font-weight:700;color:var(--dfn-accent);cursor:pointer}
.dfn-more:hover{text-decoration:underline}
.dfn-senses.is-collapsed .dfn-sense:nth-child(n+5){display:none}

/* chips */
.dfn-chips{display:flex;flex-wrap:wrap;gap:6px}
.dfn-chip{border:1px solid var(--tt-line,rgba(16,24,40,.1));background:var(--tt-surface-2,rgba(16,24,40,.03));color:var(--tt-ink,#101828);
  border-radius:999px;padding:6px 12px;font-size:.82rem;font-weight:600;cursor:pointer;transition:transform .15s ease,background .15s ease,border-color .15s ease;-webkit-tap-highlight-color:transparent}
.dfn-chip:hover{transform:translateY(-1px);border-color:color-mix(in srgb,var(--dfn-accent) 50%,transparent);background:color-mix(in srgb,var(--dfn-accent) 10%,transparent)}
.dfn-chip:active{transform:scale(.96)}
.dfn-chip.is-anti{border-style:dashed}

/* empty / error */
.dfn-empty{padding:20px 16px;border-radius:18px;background:var(--tt-surface-2,rgba(16,24,40,.04));text-align:center}
.dfn-empty-ico{width:52px;height:52px;margin:0 auto 10px;border-radius:18px;display:grid;place-items:center;font-size:1.3rem;color:var(--dfn-accent);
  background:color-mix(in srgb,var(--dfn-accent) 12%,transparent)}
.dfn-empty p{margin:0;font-size:.92rem;color:var(--tt-muted,#667085)}
.dfn-empty .dfn-chips{justify-content:center;margin-top:12px}

/* footer */
.dfn-foot{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;padding:12px 26px 16px;border-top:1px solid var(--tt-line,rgba(16,24,40,.08));
  font-size:.7rem;color:var(--tt-muted,#667085);background:var(--tt-surface,#fff)}
.dfn-foot a{color:inherit;font-weight:700;text-decoration:none}
.dfn-foot a:hover{color:var(--dfn-accent)}
.dfn-foot .dfn-foot-spacer{flex:1}
.dfn-foot kbd{font:inherit;padding:1px 6px;border-radius:6px;border:1px solid var(--tt-line,rgba(16,24,40,.12))}

/* back / history */
.dfn-back{display:inline-flex;align-items:center;gap:6px;background:none;border:0;padding:0;margin-bottom:6px;font-size:.74rem;font-weight:700;color:var(--tt-muted,#667085);cursor:pointer}
.dfn-back:hover{color:var(--dfn-accent)}

/* floating "Define" pill shown over a text selection */
.dfn-pill{position:fixed;z-index:99999;transform:translate(-50%,-100%) translateY(-10px);padding:8px 14px;border-radius:999px;
  display:inline-flex;align-items:center;gap:8px;font:700 .82rem "Plus Jakarta Sans",system-ui,sans-serif;color:#fff;cursor:pointer;white-space:nowrap;max-width:min(80vw,360px);
  background:linear-gradient(135deg,#6d5df5,#22c1ee);box-shadow:0 12px 30px rgba(109,93,245,.45);border:0;
  animation:dfn-pop .22s cubic-bezier(.2,.9,.25,1.3);-webkit-tap-highlight-color:transparent}
.dfn-pill span{overflow:hidden;text-overflow:ellipsis}
.dfn-pill::after{content:"";position:absolute;left:50%;bottom:-5px;width:10px;height:10px;transform:translateX(-50%) rotate(45deg);background:#3b8ef0;border-radius:2px}

/* word hover affordance (pointer devices only) */
@media (hover:hover){
  [data-define],.fill-text-container,.question-text,.text-content{cursor:text}
}
.dfn-flash{animation:dfn-flash .5s ease}

/* phone: bottom sheet */
@media (max-width:640px){
  .dfn-root{align-items:flex-end;padding:0}
  .dfn-sheet{width:100%;max-height:min(90dvh,100vh);border-radius:28px 28px 0 0;transform:translateY(100%);padding-bottom:env(safe-area-inset-bottom)}
  .dfn-root.is-open .dfn-sheet{transform:none}
  .dfn-sheet::after{content:"";position:absolute;top:8px;left:50%;width:42px;height:5px;border-radius:99px;transform:translateX(-50%);background:var(--tt-line,rgba(16,24,40,.15));z-index:2}
  .dfn-head{padding:24px 20px 12px}
  .dfn-body{padding:0 20px 20px}
  .dfn-foot{padding:12px 20px 14px}
}

html[data-theme="dark"] .dfn-sheet{box-shadow:0 40px 90px -20px rgba(0,0,0,.8)}
html[data-theme="dark"] .dfn-ai::after{background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.08) 50%,transparent 70%)}

@keyframes dfn-sheen{to{transform:translateX(120%)}}
@keyframes dfn-shimmer{from{background-position:200% 0}to{background-position:-200% 0}}
@keyframes dfn-twinkle{0%,100%{transform:scale(1) rotate(0)}50%{transform:scale(1.25) rotate(12deg)}}
@keyframes dfn-bounce{0%,100%{transform:translateY(0);opacity:.5}50%{transform:translateY(-4px);opacity:1}}
@keyframes dfn-pop{from{opacity:0;transform:translate(-50%,-100%) translateY(0) scale(.9)}to{opacity:1;transform:translate(-50%,-100%) translateY(-10px) scale(1)}}
@keyframes dfn-flash{0%{background:rgba(109,93,245,.35)}100%{background:transparent}}
@media (prefers-reduced-motion:reduce){
  .dfn-sheet,.dfn-backdrop{transition:none}
  .dfn-ai::after,.dfn-ai-chip i,.dfn-pill,.dfn-skel,.dfn-ai-thinking span{animation:none}
}
/* Hold-to-define: keep iOS from popping its own callout while a word is held (selection stays on). */
[data-define],.fill-text-container,.question-text,.text-content,.pairs-title,.dfn-readable{-webkit-touch-callout:none}