:root{--paper: #fafaf7;--card: #ffffff;--ink: #16181d;--muted: #6b7280;--line: #e4e2da;--teal: #0e6b62;--teal-soft: #e3efed;--amber: #b7791f;--amber-soft: #f7edd9;--rust: #9b3b2e;--bar: #1c1e22;--mono: "IBM Plex Mono", ui-monospace, monospace;--sans: "IBM Plex Sans", system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:14px}button{font:inherit;cursor:pointer;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:6px;padding:6px 12px}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--teal);outline-offset:1px}button:disabled{opacity:.45;cursor:default}.btn-primary{background:var(--teal);border-color:var(--teal);color:#fff}.btn-danger{background:var(--card);border-color:var(--rust);color:var(--rust)}select,input,textarea{font:inherit;border:1px solid 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var(--teal);border-color:var(--teal)}.sample-ctl{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}.sample-ctl input{padding:4px 6px;font-size:12px}.closure-main{grid-template-columns:1fr}.closure-inner{max-width:820px}.closure-summary{display:flex;gap:20px;margin:10px 0 6px;font-size:13px;color:var(--muted)}.closure-summary b{color:var(--ink);font-size:15px}.closure-note{font-size:12.5px;color:var(--muted);margin:4px 0 12px;line-height:1.5}.letter-edit{width:100%;min-height:460px;font-family:var(--mono);font-size:12.5px;line-height:1.7}.closure-actions{display:flex;align-items:center;gap:8px;margin-top:12px}.sched-preview{font-size:13px;line-height:1.6;margin-top:8px}.sched-preview ol,.sched-preview ul{margin:6px 0 6px 18px}@media(max-width:900px){.main{grid-template-columns:1fr}.rail{display:none}.rail.open{display:block;position:fixed;top:49px;right:0;bottom:0;left:0;z-index:5}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}