:root,:root[data-theme=dark]{--bg: #0b1020;--panel: #0f152b;--panel-2: #131a34;--text: #e6e8ee;--muted: #9aa3b2;--border: #20294a;--ring: #2a3670;--violet-500: #7c3aed;--violet-400: #a78bfa;--green-500: #22c55e;--amber-500: #f59e0b;--card-radius: 16px}:root[data-theme=light]{--bg: #f7f8fb;--panel: #ffffff;--panel-2: #fafbff;--text: #0f172a;--muted: #64748b;--border: #e5e7eb;--ring: #c7d2fe;--violet-500: #6d28d9;--violet-400: #8b5cf6;--green-500: #16a34a;--amber-500: #d97706}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:radial-gradient(1200px 600px at 10% -10%,color-mix(in oklab,var(--panel) 8%,transparent) 0%,var(--bg) 60%),var(--bg);color:var(--text)}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace}.muted{color:var(--muted);font-size:13px}.app-shell{max-width:1100px;margin:0 auto;padding:clamp(12px,2.4vw,28px)}.app-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:10px;flex-wrap:wrap}.app-title{margin:0;font-size:28px;letter-spacing:.3px;display:inline-flex;align-items:center;gap:.55ch}.app-title__logo{font-size:.95em;filter:drop-shadow(0 1px 2px rgba(0,0,0,.35))}.actions{display:flex;gap:10px;flex-wrap:wrap}.input{height:36px;padding:6px 10px;border-radius:10px;border:1px solid var(--border);background:color-mix(in oklab,var(--panel) 85%,transparent);color:var(--text);outline:none;min-width:160px;box-shadow:0 1px #ffffff0a inset}.input::placeholder{color:var(--muted)}.input:focus{border-color:color-mix(in oklab,var(--violet-500) 40%,var(--border));box-shadow:0 0 0 3px color-mix(in oklab,var(--violet-500) 20%,transparent)}.btn{appearance:none;padding:10px 14px;border-radius:10px;border:1px solid var(--border);background:linear-gradient(180deg,color-mix(in oklab,var(--panel) 70%,transparent),color-mix(in oklab,var(--panel-2) 70%,transparent));color:var(--text);cursor:pointer;box-shadow:0 1px #ffffff0a inset,0 8px 24px #0000001f;transition:transform .06s ease,box-shadow .2s ease,border-color .2s ease}.btn:hover{transform:translateY(-1px);box-shadow:0 1px #ffffff0a inset,0 12px 28px #00000052;border-color:#2a376f}.btn:active{transform:translateY(0)}.btn--secondary{background:linear-gradient(180deg,color-mix(in oklab,var(--panel-2) 70%,transparent),color-mix(in oklab,var(--panel) 70%,transparent))}.app-grid{display:grid;grid-template-columns:1fr 340px;gap:24px;align-items:start}@media (max-width: 900px){.app-grid{grid-template-columns:1fr}}.board{position:relative;border-radius:20px;border:1px solid var(--border);background:radial-gradient(600px 300px at 20% 0%,color-mix(in oklab,var(--panel) 10%,transparent) 0%,var(--panel-2) 60%),linear-gradient(180deg,var(--panel),var(--panel-2));box-shadow:0 10px 40px #00000026,0 0 0 1px #ffffff08 inset;touch-action:none;-webkit-user-select:none;user-select:none;width:100%;max-width:100%}.letter{position:absolute;isolation:isolate;overflow:visible;width:50px;height:50px;border-radius:14px;border:1px solid var(--border);background:linear-gradient(180deg,color-mix(in oklab,var(--panel) 85%,transparent),color-mix(in oklab,var(--panel-2) 85%,transparent));color:var(--text);font-weight:800;font-size:18px;cursor:pointer;display:grid;place-items:center;letter-spacing:.4px;box-shadow:0 8px 22px #0000001f,0 0 0 1px #ffffff0a inset;transition:transform .06s ease,opacity .2s ease}.letter:after{content:"";position:absolute;inset:-12%;border-radius:inherit;pointer-events:none;background:radial-gradient(circle at 50% 50%,#a78bfa7a,#7c3aed1a 40%,#7c3aed00);opacity:0;transform:scale(.92);filter:blur(8px)}@media (hover: hover) and (pointer: fine){.letter:hover{transform:translate(-50%,-50%) scale(1.04)}}.letter[data-used]{box-shadow:0 0 0 2px color-mix(in oklab,var(--green-500) 40%,transparent),0 8px 22px #00000059,0 0 0 1px #ffffff0a inset}.letter[data-dim]{opacity:.45;cursor:not-allowed}.letter[data-start]{border-color:color-mix(in oklab,var(--green-500) 60%,var(--border));background:linear-gradient(180deg,color-mix(in oklab,var(--green-500) 18%,var(--panel)),color-mix(in oklab,var(--green-500) 10%,var(--panel-2)));box-shadow:0 0 0 5px color-mix(in oklab,var(--green-500) 28%,transparent),0 8px 24px #0003}@keyframes pulseStart{0%{outline:0 solid rgba(34,197,94,0)}70%{outline:10px solid rgba(34,197,94,.1)}to{outline:0 solid rgba(34,197,94,0)}}.letter[data-start]{animation:pulseStart 1.6s ease-out infinite}.letter[data-active]{z-index:2;border-color:color-mix(in oklab,var(--violet-400) 70%,var(--border));background:linear-gradient(180deg,color-mix(in oklab,var(--violet-500) 26%,var(--panel)),color-mix(in oklab,var(--violet-500) 16%,var(--panel-2)));box-shadow:0 0 0 2px color-mix(in oklab,var(--violet-400) 84%,transparent),0 0 0 12px #7c3aed29,0 18px 30px #7c3aed40;transition:transform .06s ease;animation:letterHaloPulse 1.9s ease-in-out infinite}.letter[data-active]:after{transition:none;opacity:1;transform:scale(1.06);filter:blur(12px);animation:haloDrift 2.6s ease-in-out infinite}.letter[data-active][data-used]{box-shadow:0 0 0 2px color-mix(in oklab,var(--violet-400) 84%,transparent),0 0 0 12px #7c3aed38,0 18px 32px #7c3aed52}@keyframes letterHaloPulse{0%,to{box-shadow:0 0 0 2px color-mix(in oklab,var(--violet-400) 78%,transparent),0 0 0 11px #7c3aed24,0 16px 26px #7c3aed38}50%{box-shadow:0 0 0 3px color-mix(in oklab,var(--violet-400) 92%,transparent),0 0 0 18px #7c3aed42,0 22px 36px #7c3aed52}}@keyframes haloDrift{0%,to{opacity:.55;transform:scale(1.02);filter:blur(11px)}45%{opacity:.9;transform:scale(1.12);filter:blur(15px)}65%{opacity:.7;transform:scale(1.08);filter:blur(13px)}}@media (prefers-reduced-motion: reduce){.letter[data-active]{animation:none}.letter[data-active]:after{animation:none}}.sidebar{display:grid;gap:12px}.card{position:relative;padding:14px;border:1px solid var(--border);border-radius:var(--card-radius);background:linear-gradient(180deg,var(--panel),var(--panel-2));box-shadow:0 8px 28px #00000047,0 0 0 1px #ffffff05 inset}.card[data-flash=valid]{background:linear-gradient(180deg,color-mix(in oklab,var(--green-500) 20%,var(--panel)),color-mix(in oklab,var(--green-500) 14%,var(--panel-2)));box-shadow:0 8px 28px #22c55e38,0 0 0 1px #ffffff05 inset;transition:background .25s ease,box-shadow .25s ease}.card[data-flash=invalid]{background:linear-gradient(180deg,color-mix(in oklab,#ef4444 22%,var(--panel)),color-mix(in oklab,#ef4444 14%,var(--panel-2)));box-shadow:0 8px 28px #ef444440,0 0 0 1px #ffffff05 inset;transition:background .25s ease,box-shadow .25s ease}.card__row{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.progress{height:10px;background:#0e1430;border-radius:999px;border:1px solid var(--border);box-shadow:0 1px #ffffff08 inset;overflow:hidden}.progress__fill{height:100%;border-radius:999px;box-shadow:0 6px 20px #7c3aed59 inset;transition:width .25s ease}.status{display:flex;align-items:center;gap:10px}.status__dot{width:10px;height:10px;border-radius:50%;background:var(--green-500);opacity:.7}.status__text{font-size:14px;color:var(--text)}.card__body{height:clamp(40px,5vw,56px);display:flex;align-items:center;justify-content:space-between;gap:8px}.card[data-flash] .card__body{justify-content:center}.status[data-hidden=true]{visibility:hidden}.current-word{margin-top:0;font-size:18px;color:var(--violet-400)}.flash-banner{margin-top:0}.current-word{margin-top:10px;font-size:18px;color:var(--violet-400)}.flash-overlay{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none;z-index:2;padding:12px}.flash-banner{position:relative;display:inline-flex;align-items:center;gap:14px;padding:16px 22px;border-radius:18px;font-weight:800;letter-spacing:.15px;text-align:center;color:var(--text);background:linear-gradient(135deg,color-mix(in oklab,var(--panel-2) 86%,transparent),color-mix(in oklab,var(--panel) 78%,transparent));border:1px solid color-mix(in oklab,var(--border) 80%,transparent);box-shadow:0 24px 60px #0f172a8c,0 12px 24px #0f172a52;transform:translateY(18px) scale(.9);opacity:0;overflow:hidden;animation:flashEnter .45s cubic-bezier(.22,.9,.33,1) forwards,flashGlow 2.6s ease-out .45s}.flash-icon{display:grid;place-items:center;width:34px;height:34px;border-radius:999px;font-size:18px;font-weight:900;color:#fefeff;text-shadow:0 1px 6px rgba(15,23,42,.3);box-shadow:0 10px 22px #0f172a59,0 0 0 1px #ffffff1a inset;transform:scale(.4);opacity:0;animation:flashBadge .38s cubic-bezier(.26,.94,.22,1.3) .08s forwards}.flash-text{font-size:17px}.card .card__body .flash-banner{margin-top:0}.flash-banner[data-kind=valid]{background:linear-gradient(135deg,color-mix(in oklab,var(--green-500) 28%,transparent),color-mix(in oklab,var(--panel) 82%,transparent));box-shadow:0 26px 60px #22c55e8c,0 0 0 1px #ffffff14 inset}.flash-banner[data-kind=valid] .flash-icon{background:linear-gradient(135deg,color-mix(in oklab,var(--green-500) 82%,transparent),color-mix(in oklab,var(--green-500) 42%,transparent))}.flash-banner[data-kind=invalid]{background:linear-gradient(135deg,color-mix(in oklab,#ef4444 34%,transparent),color-mix(in oklab,var(--panel) 80%,transparent));box-shadow:0 26px 60px #ef44447a,0 0 0 1px #ffffff14 inset}.flash-banner[data-kind=invalid] .flash-icon{background:linear-gradient(135deg,color-mix(in oklab,#ef4444 84%,transparent),color-mix(in oklab,#f87171 36%,transparent))}.flash-banner:before{content:"";position:absolute;inset:-40% -30%;background:radial-gradient(circle at 50% 0%,#ffffff3d,#fff0);opacity:0;animation:flashHighlight .6s ease-out .2s forwards}.flash-banner:after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 25%,rgba(255,255,255,.16) 40%,transparent 65%);mix-blend-mode:screen;transform:translate(-120%);animation:flashSheen 1.2s ease-out .35s forwards}@keyframes flashEnter{0%{opacity:0;transform:translateY(24px) scale(.82);filter:blur(10px)}60%{opacity:1;transform:translateY(-6px) scale(1.03);filter:blur(0)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes flashGlow{0%{box-shadow:0 40px 80px #3b82f659,0 0 0 1px #ffffff0f inset}60%{box-shadow:0 24px 52px #0f172a66,0 0 0 1px #ffffff17 inset}to{box-shadow:0 18px 38px #0f172a52,0 0 0 1px #ffffff14 inset}}@keyframes flashHighlight{0%{opacity:0;transform:scale(.7)}to{opacity:1;transform:scale(1)}}@keyframes flashSheen{0%{transform:translate(-130%)}to{transform:translate(130%)}}@keyframes flashBadge{0%{opacity:0;transform:scale(0) rotate(-12deg)}70%{opacity:1;transform:scale(1.15) rotate(4deg)}to{opacity:1;transform:scale(1) rotate(0)}}.word-list{margin-top:8px;padding-left:18px}.rules{margin-top:12px;color:var(--muted);font-size:13px}.rules ul{margin-top:6px;padding-left:18px}.board svg polyline{filter:drop-shadow(0 2px 4px rgba(0,0,0,.2))}.board svg rect{stroke:#2b355e}@media (max-width: 420px){.app-title{font-size:22px}}