:root{--bg: #f5f6f8;--surface: #ffffff;--surface-muted: #eef1f5;--border: #d4d9e0;--border-strong: #9aa4b2;--text: #1f2937;--text-muted: #5b6573;--text-subtle: #7a8495;--primary: #1e5fa8;--primary-hover: #18508e;--primary-soft: #e5efff;--focus: #2f81f7;--danger: #b4232c;--success: #1e7a45;--radius: 8px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow-md: 0 4px 16px rgba(15, 23, 42, .1);--shadow-lg: 0 16px 40px rgba(15, 23, 42, .18);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-size: 15px;--row-min: 44px}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{font-family:var(--font);font-size:var(--font-size);color:var(--text);background:var(--bg);line-height:1.45;-webkit-font-smoothing:antialiased}button{font-family:inherit;font-size:inherit;cursor:pointer;border-radius:var(--radius);border:1px solid transparent;padding:10px 18px;min-height:var(--row-min);background:var(--surface);color:var(--text);border-color:var(--border);transition:background .12s ease,border-color .12s ease,box-shadow .12s ease}button:hover{background:var(--surface-muted)}button:focus-visible{outline:2px solid var(--focus);outline-offset:2px}button.primary{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600}button.primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}button.secondary{background:var(--surface);color:var(--text)}button:disabled{opacity:.55;cursor:not-allowed}input,textarea{font-family:inherit;font-size:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;min-height:var(--row-min);width:100%}input:focus-visible,textarea:focus-visible{outline:2px solid var(--focus);outline-offset:1px;border-color:var(--focus)}input:disabled{background:var(--surface-muted);color:var(--text-muted);cursor:not-allowed}textarea{min-height:96px;resize:vertical}.app-shell{display:flex;flex-direction:column;min-height:100%}.app-header{background:var(--surface);border-bottom:1px solid var(--border);padding:16px 32px;display:flex;align-items:center;gap:16px}.app-header .brand{font-weight:700;letter-spacing:.4px;color:var(--primary)}.app-header .brand small{color:var(--text-muted);font-weight:500;margin-left:8px}.app-main{flex:1;padding:32px;max-width:960px;width:100%;margin:0 auto}.hero{margin-top:24px;padding:48px 32px;background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-sm);text-align:center}.hero h1{font-size:36px;margin:0 0 8px;color:var(--text)}.hero p{color:var(--text-muted);margin:0 0 24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-sm);padding:28px}.card h2{margin:0 0 4px;font-size:22px}.card .sub{color:var(--text-muted);margin:0 0 24px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}.field label{font-weight:600;color:var(--text)}.field .hint{color:var(--text-muted);font-size:13px}.row{display:grid;grid-template-columns:1fr 1fr;gap:18px}@media (max-width: 720px){.row{grid-template-columns:1fr}}.actions{display:flex;gap:12px;justify-content:flex-end;margin-top:8px}.keyboard-hint{margin-top:20px;padding:10px 14px;background:var(--primary-soft);border:1px solid #c7dbf7;border-radius:var(--radius);color:#13406f;font-size:13px;display:flex;align-items:center;gap:8px}kbd{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;background:#fff;border:1px solid var(--border-strong);border-bottom-width:2px;border-radius:4px;padding:1px 6px;color:var(--text)}.dialog-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;display:grid;place-items:center;z-index:100}.dialog{background:var(--surface);border-radius:12px;padding:24px 28px;min-width:380px;max-width:560px;box-shadow:var(--shadow-lg)}.dialog h3{margin-top:0}.dialog dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px;margin:8px 0 20px}.dialog dt{color:var(--text-muted)}.dialog dd{margin:0}.sd,.sd-control{position:relative}.sd-input{padding-right:40px}.sd-clear{all:unset;position:absolute;right:8px;top:50%;transform:translateY(-50%);cursor:pointer;padding:4px 6px;border-radius:4px;color:var(--text-muted);font-size:16px;line-height:1;display:grid;place-items:center}.sd-clear:hover{background:var(--surface-muted);color:var(--text)}.sd-menu{position:absolute;left:0;right:0;top:calc(100% + 4px);z-index:20;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);max-height:320px;overflow-y:auto;padding:4px;transition:opacity 60ms ease}.sd-menu.is-loading{opacity:.72}.sd-option{padding:8px 10px;border-radius:6px;cursor:pointer;display:flex;flex-direction:column;gap:2px;animation:sd-option-in 60ms ease-out}@keyframes sd-option-in{0%{opacity:0;transform:translateY(-1px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion: reduce){.sd-menu,.sd-option{transition:none;animation:none}}.sd-option:hover{background:var(--surface-muted)}.sd-option.is-active{background:var(--primary-soft)}.sd-option .primary-line{font-weight:500;color:var(--text)}.sd-option .meta{font-size:12px;color:var(--text-subtle);display:flex;gap:10px;flex-wrap:wrap}.sd-option .meta .code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--text-muted)}.sd-empty{padding:12px;color:var(--text-muted);text-align:center;font-size:14px}.sd-selected-meta{font-size:12px;color:var(--text-subtle);margin-top:4px}mark{background:#fff3b0;color:inherit;padding:0 1px;border-radius:2px}