:root{--interior-canvas:#f1f5f9;--interior-bezel:var(--white);--interior-panel:var(--white);--interior-well:#f8fafc;--interior-sub:#f1f5f9;--interior-ink:var(--slate-900);--interior-secondary:var(--slate-700);--interior-muted:var(--slate-500);--interior-accent:var(--blue-700);--interior-accent-soft:var(--blue-50);--interior-emerald:var(--teal-700);--interior-emerald-soft:var(--teal-50);--interior-emerald-border:#0f766e3d;--interior-line:#e2e8f0;--interior-line-strong:#cbd5e1;--interior-lift:0 1px 2px #0f172a0a, 0 0 0 1px #0f172a12;--interior-bezel-shadow:0 16px 36px -14px #0f172a12, 0 2px 6px #0f172a08, 0 0 0 1px #0f172a14;--interior-inset:inset 0 1px 2px #0f172a0a, inset 0 0 0 1px #0f172a13;--interior-cap:0 1px 0 #0f172a17, 0 1px 2px #0f172a0a, inset 0 1px 0 #ffffffe6, inset 0 0 0 1px #0f172a1c;--interior-cap-primary:0 1.5px 0 var(--slate-950), 0 4px 10px #0f172a24, inset 0 1px 0 #ffffff2e;--interior-cap-emerald:0 1.5px 0 var(--emerald-900), 0 4px 10px #0f766e29, inset 0 1px 0 #fff3;--spring-snappy:cubic-bezier(.22, 1, .36, 1);--spring-bounce:cubic-bezier(.34, 1.56, .64, 1);--white:#fff;--slate-400:#94a3b8;--slate-500:#64748b;--slate-600:#475569;--slate-700:#334155;--slate-800:#1e293b;--slate-900:#0f172a;--slate-950:#020617;--stone-25:#fafaf8;--red-50:#fef2f2;--red-100:#fee2e2;--red-500:#ef4444;--red-600:#dc2626;--red-700:#b91c1c;--red-800:#991b1b;--orange-100:#ffedd5;--orange-600:#ea580c;--amber-50:#fffbeb;--amber-100:#fef3c7;--amber-300:#fcd34d;--amber-500:#f59e0b;--amber-600:#d97706;--amber-700:#b45309;--yellow-50:#fefce8;--yellow-200:#fef08a;--green-50:#f0fdf4;--green-100:#dcfce7;--green-600:#16a34a;--green-700:#15803d;--emerald-50:#ecfdf5;--emerald-100:#d1fae5;--emerald-200:#a7f3d0;--emerald-600:#059669;--emerald-700:#047857;--emerald-800:#065f46;--emerald-900:#064e3b;--teal-50:#f0fdfa;--teal-600:#0d9488;--teal-700:#0f766e;--teal-800:#115e59;--teal-900:#134e4a;--blue-50:#eff6ff;--blue-200:#bfdbfe;--blue-600:#2563eb;--blue-700:#1d4ed8;--indigo-50:#eef2ff;--indigo-200:#c7d2fe;--indigo-500:#6366f1;--indigo-600:#4f46e5;--indigo-700:#4338ca;--indigo-900:#312e81;--violet-50:#f5f3ff;--violet-700:#6d28d9;--fuchsia-50:#fdf4ff;--fuchsia-300:#f0abfc;--fuchsia-800:#86198f;--pink-500:#ec4899;--font-display:"Plus Jakarta Sans", "Sarabun", system-ui, sans-serif;--font-body:"Plus Jakarta Sans", "Sarabun", system-ui, sans-serif;--font-thai:"Sarabun", "Noto Sans Thai", system-ui, sans-serif;--font-mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--r-card:16px;--r-ctl:10px}*{box-sizing:border-box;margin:0;padding:0}html,body{min-height:100%;font-family:var(--font-body);color:var(--interior-ink);background-color:var(--interior-canvas);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-size:16px;line-height:1.55}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer}:where(a,button,input,textarea,[role=radio],[role=button],[tabindex]):focus-visible{outline:2px solid var(--indigo-500);outline-offset:2px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.thai-text,.vw-thai{font-family:var(--font-thai);color:var(--emerald-800);letter-spacing:0}.vw-viewport{flex-direction:column;gap:24px;width:100%;max-width:1280px;min-height:100dvh;margin:0 auto;padding:18px clamp(16px,3vw,36px) 60px;display:flex}.vw-topbar{grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;display:grid}.vw-brand{align-items:center;gap:10px;display:inline-flex}.vw-brand-mark{background:var(--indigo-600);width:32px;height:32px;color:var(--white);border-radius:10px;place-items:center;display:grid}.vw-brand-name{font-family:var(--font-display);letter-spacing:-.03em;font-size:20px;font-weight:800}.vw-brand-accent{color:var(--indigo-700)}.vw-mode{justify-self:center}.vw-vault-btn{border-radius:var(--r-ctl);border:1px solid var(--interior-line-strong);background:var(--white);justify-self:end;align-items:center;gap:8px;height:38px;padding:0 14px;font-size:14px;font-weight:700;transition:border-color .12s,background-color .12s;display:inline-flex}.vw-vault-btn:hover{border-color:var(--interior-ink)}.vault-count{background:var(--interior-sub);min-width:22px;height:22px;color:var(--interior-secondary);border-radius:999px;place-items:center;padding:0 7px;font-size:12px;font-weight:700;display:inline-grid}.vw-vault-due-pill{background:var(--amber-100);height:20px;color:var(--amber-700);letter-spacing:-.01em;border-radius:999px;align-items:center;padding:0 7px;font-size:11px;font-weight:700;display:inline-flex}@media (max-width:560px){.vw-topbar{grid-template-columns:1fr auto;grid-template-areas:"brand vault""mode mode"}.vw-brand{grid-area:brand}.vw-vault-btn{grid-area:vault}.vw-mode{grid-area:mode;width:100%;display:block!important}.vw-field{gap:8px;padding-left:14px}.vw-mic,.vw-clear{width:38px}.vw-submit{padding:0 16px}}.vw-field{background:var(--white);border:1px solid var(--interior-line-strong);border-radius:18px;align-items:center;gap:10px;min-height:62px;padding:8px 8px 8px 18px;transition:border-color .14s,box-shadow .14s;display:flex;box-shadow:0 1px 2px #0f172a0a,0 12px 30px -16px #0f172a38}.vw-field:focus-within{border-color:var(--indigo-500);box-shadow:0 0 0 4px #4f46e51f,0 12px 30px -16px #0f172a38}.vw-search-icon{color:var(--interior-muted);display:inline-flex}.vw-ghost{flex:1;align-items:center;min-width:0;display:flex;position:relative}.vw-input,.vw-ghost-overlay{font-family:var(--font-display);letter-spacing:-.01em;font-size:clamp(1.1rem,2.6vw,1.35rem);font-weight:600}.vw-input{background:0 0;border:none;outline:none;flex:1;width:100%;min-width:0}.vw-input::placeholder{color:var(--interior-muted);opacity:.8;font-weight:500}.vw-ghost-overlay{pointer-events:none;white-space:pre;align-items:center;display:flex;position:absolute;inset:0;overflow:hidden}.vw-ghost-suffix{color:var(--interior-muted);opacity:.5}.vw-search-actions{align-items:center;gap:4px;display:flex}.vw-mic,.vw-clear{width:42px;height:42px;color:var(--interior-muted);background:0 0;border:none;border-radius:12px;place-items:center;transition:background-color .12s,color .12s;display:grid}.vw-mic:hover,.vw-clear:hover{background:var(--interior-sub);color:var(--interior-ink)}.vw-mic[data-listening=true]{background:var(--red-50);color:var(--red-600);animation:1.4s infinite pulseRecording}.vw-submit{background:var(--interior-ink);height:44px;color:var(--white);white-space:nowrap;border:none;border-radius:12px;padding:0 20px;font-size:15px;font-weight:700;transition:background-color .12s,transform .1s}.vw-submit:hover{background:var(--slate-800)}.vw-submit:active{transform:scale(.98)}.vw-alert{background:var(--red-50);border-left:3px solid var(--red-600);color:var(--red-800);border-radius:12px;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;font-weight:700;display:flex}.vw-alert-retry{border:1px solid var(--red-600);background:var(--white);color:var(--red-700);cursor:pointer;border-radius:6px;padding:5px 12px;font-size:12px;font-weight:700;transition:background .12s}.vw-alert-retry:hover{background:var(--red-100)}.vw-welcome{flex-direction:column;align-items:flex-start;gap:20px;padding:clamp(16px,5vw,48px) 4px 0;display:flex}.vw-welcome-minimal{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:clamp(24px,6vw,56px) 12px 24px;display:flex}.vw-sub2s-indicator{background:var(--sand-50);border:1px solid var(--interior-line);color:var(--interior-secondary);border-radius:999px;align-items:center;gap:8px;padding:5px 14px;font-size:12.5px;display:inline-flex}.vw-sub2s-pulse{background:var(--emerald-600);width:7px;height:7px;box-shadow:0 0 0 2px var(--interior-emerald-border);border-radius:999px}.vw-first-run-hints{flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;max-width:640px;display:flex}.vw-hint-pill{background:var(--interior-well);border:1px solid var(--interior-line);color:var(--interior-secondary);border-radius:8px;align-items:center;gap:6px;padding:5px 11px;font-size:12px;font-weight:600;display:inline-flex}.vw-hint-pill kbd{font-family:var(--font-mono);background:var(--interior-sub);border:1px solid var(--interior-line-strong);color:var(--interior-ink);border-radius:4px;padding:1px 5px;font-size:11px}.vw-minimal-sparks{flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;max-width:600px;display:flex}.vw-minimal-spark-pill{border:1px solid var(--interior-line-strong);background:var(--white);height:36px;color:var(--interior-ink);cursor:pointer;border-radius:999px;align-items:center;gap:7px;padding:0 14px;font-size:13.5px;font-weight:600;transition:border-color .12s,background-color .12s,transform .1s;display:inline-flex}.vw-minimal-spark-pill:hover{border-color:var(--interior-ink);background:var(--sand-50);transform:translateY(-1px)}.vw-spark-term{color:var(--interior-ink);font-weight:700}.vw-spark-sep{color:var(--interior-muted)}.vw-spark-thai{color:var(--emerald-800);font-family:var(--font-thai);font-weight:600}.vw-hero-spotlight{background:var(--sand-50);border:1px solid var(--interior-line);border-radius:12px;flex-direction:column;gap:8px;margin-top:4px;padding:14px 16px;display:flex}.vw-hero-spotlight-thai{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.vw-hero-spotlight-badge{background:var(--teal-50);border:1px solid var(--interior-emerald-border);color:var(--teal-800);border-radius:6px;align-items:center;padding:2px 7px;font-size:11px;font-weight:700;display:inline-flex}.vw-hero-spotlight-thai-text{font-family:var(--font-thai);color:var(--emerald-900);margin:0;font-size:clamp(1.15rem,2.5vw,1.45rem);font-weight:700;line-height:1.35}.vw-hero-spotlight-def{color:var(--interior-secondary);margin:0;font-size:14px;line-height:1.5}.vw-welcome-title{font-family:var(--font-display);letter-spacing:-.045em;flex-direction:column;font-size:clamp(2.6rem,10vw,4.75rem);font-weight:800;line-height:1;display:flex}.vw-welcome-title span{animation:vwRise .62s var(--spring-snappy) both;display:block}.vw-welcome-title span:nth-child(2){animation-delay:90ms}.vw-welcome-title span:nth-child(3){animation-delay:.18s}.vw-welcome-sub{max-width:46ch;color:var(--interior-secondary);font-size:clamp(1rem,2.4vw,1.15rem)}.vw-try{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.vw-try-label{color:var(--interior-muted);margin-right:2px;font-size:14px;font-weight:700}.vw-try-chip{border:1px solid var(--interior-line-strong);background:var(--white);border-radius:999px;height:34px;padding:0 14px;font-size:14px;font-weight:600;transition:border-color .12s,background-color .12s}.vw-try-chip:hover{border-color:var(--interior-ink)}@media (pointer:coarse){.vw-try-chip{height:42px;padding:0 16px}}.vw-deck{flex-direction:column;gap:22px;display:flex}.vw-hero{background:var(--white);border:1px solid var(--interior-line);border-radius:var(--r-card);box-shadow:var(--interior-lift);flex-direction:column;gap:20px;padding:24px 26px;display:flex}.vw-typo{color:var(--interior-secondary);font-size:14px}.vw-hero-row{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:18px 24px;display:flex}.vw-hero-text{flex-direction:column;gap:12px;min-width:0;display:flex}.vw-hero-word{flex-wrap:wrap;align-items:baseline;gap:8px 14px;display:flex}.vw-word{font-family:var(--font-display);letter-spacing:-.045em;overflow-wrap:anywhere;font-size:clamp(2.5rem,8vw,4.25rem);font-weight:800;line-height:1}.vw-level{border:1px solid var(--interior-line-strong);color:var(--interior-muted);border-radius:6px;padding:2px 8px;font-size:12px;font-weight:700}.vw-say{flex-wrap:wrap;align-items:center;gap:4px 14px;display:flex}.vw-respell{font-family:var(--font-mono);flex-wrap:wrap;align-items:baseline;font-size:15px;display:inline-flex}.vw-syllable{font:inherit;color:var(--interior-secondary);background:0 0;border:none;border-radius:6px;padding:2px 4px}.vw-syllable[data-stress=true]{background:var(--indigo-50);color:var(--indigo-700);font-weight:700}.vw-syllable:hover{background:var(--interior-sub)}.vw-syllable-sep{color:var(--interior-line-strong)}.vw-ipa{font-family:var(--font-mono);color:var(--interior-muted);font-size:14px}.vw-note{color:var(--interior-muted);font-size:14px;font-weight:700}.vw-sentence{font-family:var(--font-display);letter-spacing:-.025em;font-size:clamp(1.45rem,3.8vw,2.25rem);font-weight:700;line-height:1.22}.vw-hero-actions{flex-wrap:wrap;gap:8px;display:flex}.vw-body{flex-direction:column;gap:16px;display:flex}.vw-workspace-studio{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);align-items:start;gap:24px;width:100%;display:grid}.vw-studio-primary,.vw-studio-sidebar{flex-direction:column;gap:16px;min-width:0;display:flex}@media (min-width:981px){.vw-studio-sidebar{position:sticky;top:18px}}@media (max-width:980px){.vw-workspace-studio{grid-template-columns:1fr;gap:20px}}.vw-studio-panel-card{background:var(--white);border:1px solid var(--interior-line);border-radius:var(--r-card);box-shadow:var(--interior-lift);flex-direction:column;transition:border-color .15s,box-shadow .15s;display:flex;overflow:hidden}.vw-studio-panel-card:hover{border-color:var(--interior-line-strong)}.vw-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:16px;display:grid}@media (max-width:760px){.vw-grid{grid-template-columns:minmax(0,1fr)}}.vw-stack{flex-direction:column;gap:16px;display:flex}.vw-enter{animation:.24s ease-out both vwRise}.vw-card{background:var(--white);border:1px solid var(--interior-line);border-radius:var(--r-card);flex-direction:column;gap:12px;min-width:0;padding:20px 22px 22px;display:flex}.vw-card[data-tone=thai]{background:var(--interior-emerald-soft);border-color:var(--interior-emerald-border)}.vw-card-head{justify-content:space-between;align-items:center;gap:10px;min-height:30px;display:flex}.vw-card-title{font-family:var(--font-display);letter-spacing:-.01em;color:var(--interior-secondary);font-size:15px;font-weight:700}.vw-card-tools{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;display:flex}.vw-lead{overflow-wrap:anywhere;font-size:clamp(1.05rem,2.2vw,1.2rem);font-weight:600;line-height:1.55}.vw-lead.vw-thai{font-size:clamp(1.1rem,2.4vw,1.25rem)}.vw-body-text{color:var(--interior-secondary);font-size:16px;line-height:1.6}.vw-body-text.vw-thai{color:var(--emerald-800)}.vw-pattern{margin-bottom:6px;font-size:17px;font-weight:700}.vw-quote{border-left:3px solid var(--indigo-200);padding-left:14px;font-size:17px;font-weight:600;line-height:1.5}.vw-quote.vw-thai{border-left-color:var(--emerald-200)}.vw-practice{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.vw-muted{color:var(--interior-muted);font-size:15px}.vw-aside{border-top:1px solid var(--interior-line);color:var(--interior-secondary);padding-top:12px;font-size:15px;line-height:1.55}.vw-aside-label{color:var(--interior-muted);margin-bottom:4px;font-size:13px;font-weight:700;display:block}.vw-chip-word{background:var(--indigo-50);color:var(--indigo-700);border-radius:6px;margin-right:6px;padding:0 7px;display:inline-block}.vw-others{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.vw-others .vw-aside-label{margin:0 4px 0 0}.vw-chip{border:1px solid var(--interior-line-strong);background:var(--white);border-radius:999px;height:32px;padding:0 13px;font-size:14px;font-weight:600;transition:border-color .12s}.vw-chip:hover{border-color:var(--interior-ink)}.vw-tag{background:var(--interior-sub);height:24px;color:var(--interior-secondary);white-space:nowrap;border-radius:999px;align-items:center;padding:0 9px;font-size:12px;font-weight:700;display:inline-flex}.vw-tag[data-tone=emerald]{background:var(--emerald-100);color:var(--emerald-800)}.vw-link{color:var(--indigo-700);text-underline-offset:3px;background:0 0;border:none;padding:2px 4px;font-size:13px;font-weight:700;text-decoration:underline}.vw-icon-btn{width:32px;height:32px;color:var(--interior-muted);background:0 0;border:none;border-radius:8px;place-items:center;transition:background-color .12s,color .12s;display:grid}.vw-icon-btn:hover{background:var(--interior-sub);color:var(--interior-ink)}.vw-flip{cursor:pointer;transition:border-color .12s}.vw-flip:hover{border-color:var(--interior-line-strong)}.vw-flip :where(button,a,input,textarea){cursor:pointer}.vw-diff{font-size:17px;line-height:1.9}.vw-legend{gap:12px;font-size:13px;display:flex}.vw-rephrases{flex-direction:column;list-style:none;display:flex}.vw-rephrase{border-bottom:1px solid var(--interior-line);grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:10px 0;display:grid}.vw-rephrase:first-child{padding-top:0}.vw-rephrase:last-child{border-bottom:none;padding-bottom:0}.vw-rephrase-text{overflow-wrap:anywhere;font-size:16px;line-height:1.45}.vw-rephrase-tools{align-items:center;gap:4px;display:inline-flex}@media (max-width:560px){.vw-rephrase{grid-template-columns:1fr auto}.vw-rephrase .vw-tag{grid-column:1/-1;justify-self:start}}.vw-deck-foot{display:flex}.vw-ask{border:1px solid var(--interior-line-strong);background:var(--white);text-align:left;border-radius:999px;align-items:center;gap:10px;max-width:100%;min-height:44px;padding:0 18px 0 14px;font-size:15px;transition:border-color .12s;display:inline-flex}.vw-ask:hover{border-color:var(--interior-ink)}.vw-ask svg{color:var(--indigo-600);flex:none}.vw-ask-label{flex:none;font-weight:700}.vw-ask-text{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--interior-muted);overflow:hidden}.vw-vault-empty{color:var(--interior-muted);padding:28px 18px}.interior-cap-btn{border:1px solid var(--interior-line-strong);border-radius:var(--r-ctl);background:var(--white);height:38px;color:var(--interior-ink);font-family:var(--font-body);white-space:nowrap;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:7px;padding:0 14px;font-size:14px;font-weight:700;transition:background-color .12s,border-color .12s,transform .1s;display:inline-flex}.interior-cap-btn[data-size=sm]{height:34px;padding:0 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