:root{--bg: #f4f5f7;--card: #fff;--ink: #1c1c1e;--muted: #6b7280;--line: #d1d5db;--brand: #2563eb;--ok: #059669;--err: #d92d20;--warn: #b45309}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Noto Sans Thai,sans-serif;background:var(--bg);color:var(--ink)}.center{min-height:100vh;display:grid;place-items:center}.app{max-width:760px;margin:0 auto;padding:16px}header{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--line);margin-bottom:16px}.who{font-size:.85rem;color:var(--muted)}.link{background:none;border:none;color:var(--brand);cursor:pointer;padding:0;font-size:inherit}.login-card{background:var(--card);padding:28px;border-radius:12px;box-shadow:0 1px 4px #00000014;width:320px}.login-card h1{font-size:1.2rem;margin-top:0}.hint{font-size:.82rem;color:var(--muted)}input{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;font-size:1rem;margin-bottom:10px}button{padding:10px 14px;border:none;border-radius:8px;background:var(--brand);color:#fff;font-size:.95rem;cursor:pointer}button:disabled{opacity:.5;cursor:default}.list{list-style:none;padding:0}.list li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:8px;cursor:pointer;display:flex;flex-direction:column;gap:2px}.list li:hover{border-color:var(--brand)}.dates{font-size:.85rem;color:var(--muted)}.grid{display:grid;gap:6px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px;margin:10px 0;font-size:.92rem}.badge{font-size:.72rem;padding:2px 8px;border-radius:999px;background:#e5e7eb;color:var(--ink);vertical-align:middle}.badge.pending_admin{background:#fef3c7;color:var(--warn)}.badge.rejected{background:#fee2e2;color:var(--err)}.badge.committed{background:#d1fae5;color:var(--ok)}.ok{color:var(--ok)}.err{color:var(--err)}.conflict-box{background:#fffbeb;border:1px solid #fde68a;border-radius:8px;padding:10px 14px;color:var(--warn)}.avail{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px}.avail li{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:.9rem}.demand{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:10px 0}.demand-label{font-size:.82rem;color:var(--muted)}.demand-item{font-size:.8rem;padding:3px 10px;border-radius:999px;background:#fef3c7;color:var(--warn);font-weight:600}.demand-item.done{background:#d1fae5;color:var(--ok)}.demand-item.over{background:#fee2e2;color:var(--err)}.actions{display:flex;gap:10px;margin-top:20px;align-items:center}.actions .approve{background:var(--ok)}.actions .reject{background:var(--err)}.actions .reschedule{background:var(--warn)}.bld{margin:14px 0}.bld h3{margin:0 0 6px;display:flex;align-items:center;gap:8px}.rooms{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}.room{border:1px solid var(--line);border-radius:8px;padding:8px 10px;background:var(--card)}.room.busy{opacity:.5;background:#f3f4f6}.room.picked{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand)}.room-head{display:flex;align-items:center;gap:6px;font-size:.9rem;cursor:pointer;margin:0}.room-head input{width:auto;margin:0}.cap{color:var(--muted);font-size:.8rem}.tag{font-size:.72rem;color:var(--err);margin-left:auto}.room-cfg{display:flex;align-items:center;gap:6px;margin-top:8px}.room-cfg select,.room-cfg input{padding:6px;margin:0;font-size:.85rem}.room-cfg input{width:64px}pre.err{white-space:pre-wrap;background:#fef3f2;border:1px solid #fecdca;border-radius:8px;padding:10px}.slot-row{display:flex;align-items:center;gap:6px;margin-bottom:8px;flex-wrap:wrap}.slot-row input{margin:0;width:auto}.slot-no{width:20px;color:var(--muted);font-weight:600}.cal-filter{display:flex;align-items:center;gap:8px;margin-bottom:12px}.cal-filter input{width:auto;margin:0}