:root{--bg: #0f1419;--surface: #1a222d;--surface-2: #243040;--border: #2e3d52;--text: #e8edf4;--muted: #8b9cb3;--accent: #3dd68c;--accent-dim: #2a9d66;--highlight: #f4a261;--error: #f07178;--radius: 12px;--font: "DM Sans", system-ui, sans-serif;--mono: "JetBrains Mono", monospace;--scrollbar-size: 10px;--scrollbar-track: color-mix(in srgb, var(--surface) 88%, var(--bg));--scrollbar-thumb: color-mix(in srgb, var(--border) 70%, var(--muted));--scrollbar-thumb-hover: color-mix(in srgb, var(--accent) 28%, var(--surface-2))}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh}html{scrollbar-gutter:stable;scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) var(--scrollbar-track)}html::-webkit-scrollbar,.word-list::-webkit-scrollbar{width:var(--scrollbar-size);height:var(--scrollbar-size)}html::-webkit-scrollbar-track,.word-list::-webkit-scrollbar-track{background:var(--scrollbar-track);border-radius:999px}html::-webkit-scrollbar-thumb,.word-list::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border:2px solid var(--scrollbar-track);border-radius:999px}html::-webkit-scrollbar-thumb:hover,.word-list::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}html::-webkit-scrollbar-corner{background:var(--scrollbar-track)}#root{min-height:100vh}.app{max-width:1200px;margin:0 auto;padding:2rem 1.25rem 3rem}.format-toast{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;justify-content:center;padding:1rem 1.25rem 0;pointer-events:none;opacity:0;transform:translateY(-1.25rem);transition:opacity .35s cubic-bezier(.22,1,.36,1),transform .4s cubic-bezier(.22,1,.36,1)}.format-toast--visible{opacity:1;transform:translateY(0);pointer-events:auto}.format-toast__inner{display:flex;align-items:center;gap:.85rem;max-width:420px;width:100%;padding:.85rem 1rem .85rem .9rem;background:linear-gradient(135deg,color-mix(in srgb,var(--surface) 92%,#1e2836) 0%,var(--surface) 100%);border:1px solid color-mix(in srgb,var(--error) 35%,var(--border));border-radius:var(--radius);box-shadow:0 12px 40px #00000073,0 0 0 1px #ffffff0a inset}.format-toast__icon{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;border-radius:10px;background:color-mix(in srgb,var(--error) 16%,transparent);color:var(--error)}.format-toast__icon svg{width:1.35rem;height:1.35rem}.format-toast__text{flex:1;display:flex;flex-direction:column;gap:.15rem;min-width:0}.format-toast__text strong{font-size:.95rem;font-weight:600;color:var(--text);letter-spacing:-.01em}.format-toast__text span{font-size:.82rem;color:var(--muted);line-height:1.35}.format-toast__close{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:2rem;height:2rem;padding:0;border:none;border-radius:8px;background:transparent;color:var(--muted);cursor:pointer;transition:background .15s,color .15s}.format-toast__close:hover{background:var(--surface-2);color:var(--text)}.format-toast__close svg{width:1rem;height:1rem}.header{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:2rem}.eyebrow{margin:0 0 .25rem;font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}.header h1{margin:0;font-size:clamp(1.75rem,4vw,2.25rem);font-weight:700;letter-spacing:-.02em}.subtitle{margin:.5rem 0 0;max-width:42rem;color:var(--muted);font-size:.95rem}.badge{font-size:.8rem;font-weight:600;padding:.35rem .75rem;border-radius:999px;white-space:nowrap}.badge.loading{background:var(--surface-2);color:var(--muted)}.badge.ready{background:color-mix(in srgb,var(--accent) 18%,transparent);color:var(--accent)}.layout{display:grid;grid-template-columns:minmax(280px,380px) 1fr;gap:1.5rem;align-items:start}@media(max-width:860px){.layout{grid-template-columns:1fr}}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}.panel h2{margin:0 0 1rem;font-size:1.1rem}.field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:1rem;font-size:.85rem;color:var(--muted)}.field select{padding:.5rem .65rem;border-radius:8px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);font:inherit}.upload-zone{display:flex;flex-direction:column;align-items:center;gap:.25rem;padding:1.25rem;margin-bottom:1rem;border:2px dashed var(--border);border-radius:var(--radius);cursor:pointer;transition:border-color .15s,background .15s;text-align:center}.upload-zone:hover{border-color:var(--accent-dim);background:color-mix(in srgb,var(--accent) 6%,transparent)}.upload-zone input{position:absolute;width:0;height:0;opacity:0}.upload-label{font-weight:600;color:var(--text)}.upload-hint{font-size:.8rem;color:var(--muted)}.preview{margin:0 0 1rem;border-radius:8px;overflow:hidden;border:1px solid var(--border)}.preview img{display:block;width:100%;max-height:160px;object-fit:cover}.error{margin:0 0 1rem;padding:.65rem .85rem;background:color-mix(in srgb,var(--error) 12%,transparent);border-radius:8px;color:var(--error);font-size:.9rem}.grid-block{margin-bottom:1rem}.grid-block-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.75rem}.grid-block-header h3{margin:0;font-size:.95rem;color:var(--muted)}.letter-grid{display:grid;gap:6px;max-width:280px}.letter-cell{aspect-ratio:1;display:flex;align-items:center;justify-content:center;background:var(--surface-2);border:2px solid var(--border);border-radius:10px;font-family:var(--mono);font-size:1.35rem;font-weight:600;transition:border-color .15s,background .15s,transform .1s}.letter-cell.highlighted{border-color:var(--highlight);background:color-mix(in srgb,var(--highlight) 22%,var(--surface-2));transform:scale(1.04)}.letter-cell.blocked{visibility:hidden;pointer-events:none;border:none;background:transparent}.detection-info{margin:0 0 1rem;padding:.55rem .75rem;font-size:.8rem;color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent);border-radius:8px;line-height:1.4}.letter-cell input{width:100%;height:100%;border:none;background:transparent;text-align:center;font:inherit;color:inherit;text-transform:uppercase;outline:none}.letter-cell span{-webkit-user-select:none;user-select:none}.btn{font:inherit;font-weight:600;padding:.6rem 1rem;border-radius:8px;border:none;cursor:pointer;transition:opacity .15s,transform .1s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{width:100%;background:var(--accent);color:#0a1218}.btn.primary:hover:not(:disabled){filter:brightness(1.08)}.btn.secondary{background:var(--surface-2);color:var(--muted);font-size:.8rem;padding:.35rem .65rem}.note{margin:1rem 0 0;font-size:.78rem;color:var(--muted)}.results-panel{min-height:400px;max-height:calc(100vh - 8rem);overflow:hidden;display:flex;flex-direction:column}@media(max-width:860px){.results-panel{max-height:min(70vh,calc(100vh - 10rem))}}.word-results{display:flex;flex-direction:column;min-height:0;flex:1}.word-results-header{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem;margin-bottom:1rem;flex-shrink:0}.word-results-header h2{margin:0;font-size:1.1rem;flex:1}.filter-input{flex:1;min-width:140px;padding:.5rem .75rem;border-radius:8px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);font:inherit}.word-list{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding:.15rem .35rem .15rem 0;margin-right:-.15rem;border-radius:8px;background:color-mix(in srgb,var(--bg) 35%,transparent);scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb-hover) var(--scrollbar-track)}.word-list::-webkit-scrollbar-track{margin:6px 0}.length-group{margin-bottom:1.25rem}.length-group h3{margin:0 0 .5rem;font-size:.75rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.length-group ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.4rem}.length-group li button{font-family:var(--mono);font-size:.85rem;font-weight:500;padding:.3rem .55rem;border-radius:6px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);cursor:pointer;transition:border-color .12s,background .12s}.length-group li button:hover{border-color:var(--accent-dim)}.length-group li button.selected{border-color:var(--highlight);background:color-mix(in srgb,var(--highlight) 18%,var(--surface-2));color:var(--highlight)}.empty{color:var(--muted);font-size:.9rem}