:root{--bg: #f2f6ec;--panel: #ffffff;--panel-hi: #f7faf3;--line: #1a2413;--green: #2e6b18;--green-dim: #3a5a1e;--green-faint: #7c876a;--fill: #357016;--fill-ink: #ffffff;--ink: #1a2413;--brown: #2e3a22;--overdue: #b02405;--due: #7a6410;--ok: #2e6b18}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);font-family:DejaVu Sans Mono,Courier New,monospace}button{-webkit-tap-highlight-color:transparent;border-radius:0}input:focus,select:focus{outline:2px solid var(--green);outline-offset:-1px}input,select{border-radius:0}input::placeholder{color:var(--green-faint)}::selection{background:var(--fill);color:var(--fill-ink)}.app-shell{max-width:560px;margin:0 auto}.task-grid{display:grid;grid-template-columns:1fr;gap:10px;align-items:start}@media (min-width: 760px){.app-shell{max-width:960px}.task-grid{grid-template-columns:1fr 1fr}}@media (min-width: 1140px){.app-shell{max-width:1180px}.task-grid{grid-template-columns:1fr 1fr 1fr}}