:root{--bg: #f5f6f8;--panel: #ffffff;--border: #e3e6ea;--text: #1d2024;--muted: #8a9099;--accent: #2f6df6;--accent-soft: #e9f0ff;--mine: #2f6df6;--radius: 12px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:15px}.centered{height:100%;display:flex;align-items:center;justify-content:center}.muted{color:var(--muted)}.small{font-size:13px}.pad{padding:12px}button{font:inherit;cursor:pointer;border:none;border-radius:8px;padding:10px 14px;background:var(--accent);color:#fff;transition:opacity .15s}button:hover{opacity:.9}button:disabled{opacity:.5;cursor:default}button.secondary{background:var(--accent-soft);color:var(--accent)}button.link{background:none;color:var(--accent);padding:6px}input{font:inherit;padding:10px 12px;border:1px solid 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4px}.date-sep span{background:#0000000f;color:var(--muted);font-size:12px;padding:3px 12px;border-radius:12px}.composer{display:flex;gap:8px;padding:14px;border-top:1px solid var(--border);background:var(--panel)}.composer input{flex:1}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#00000026;display:flex;align-items:center;justify-content:center;z-index:5}.overlay .card{width:320px;max-height:70%;overflow-y:auto}.user-row{width:100%;display:flex;align-items:center;gap:10px;background:none;color:var(--text);padding:8px;text-align:left}.user-row:hover{background:var(--bg);opacity:1}.head-actions{display:flex;gap:8px;align-items:center}.head-actions button{padding:8px 12px;font-size:14px}.seg{display:flex;gap:0;margin-bottom:4px}.seg button{flex:1;background:var(--bg);color:var(--text);border-radius:0}.seg button:first-child{border-radius:8px 0 0 8px}.seg button:last-child{border-radius:0 8px 8px 0}.seg button.active{background:var(--accent);color:#fff}.check-row{cursor:pointer}.check-row input{width:auto}.row-inline{display:flex;gap:8px}.row-inline input{flex:1}.danger-link{color:#c0392b;margin-left:auto}.invite-code{font-family:monospace;font-size:18px;background:var(--bg);padding:12px;border-radius:8px;text-align:center;-webkit-user-select:all;user-select:all;margin:8px 0}