:root{--bg:#f6f7f2;--panel:#ffffff;--panel-soft:#eef5ed;--ink:#1f2a24;--muted:#66736b;--line:#d9e1d8;--primary:#1f7a5c;--primary-dark:#155a43;--accent:#295f9d;--danger:#b4473f;--shadow:0 18px 40px rgba(31,42,36,0.08)}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:Arial,Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.topbar{align-items:center;background:rgba(246,247,242,.92);border-bottom:1px solid var(--line);display:flex;height:64px;justify-content:space-between;padding:0 32px;position:-webkit-sticky;position:sticky;top:0;z-index:20}.brand{color:var(--primary-dark);font-size:22px;font-weight:800}.topnav{display:flex;gap:22px;color:var(--muted);font-size:14px}.page{margin:0 auto;max-width:1180px;padding:40px 24px 72px}.hero{display:grid;grid-gap:32px;gap:32px;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);min-height:calc(100vh - 104px);align-items:center}.eyebrow{color:var(--primary);font-size:13px;font-weight:800;letter-spacing:0;margin:0 0 12px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(42px,7vw,78px);line-height:1.02;letter-spacing:0;margin-bottom:18px}h2{font-size:28px;line-height:1.25;margin-bottom:14px}h3{margin-bottom:8px}.lead,h3{font-size:18px}.lead{color:var(--muted);line-height:1.8;max-width:680px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.button,button{align-items:center;background:var(--primary);border:0;border-radius:8px;color:#fff;cursor:pointer;display:inline-flex;font-weight:700;justify-content:center;min-height:44px;padding:0 18px}.button.secondary,button.secondary{background:#fff;border:1px solid var(--line);color:var(--ink)}.button.danger,button.danger{background:var(--danger)}.panel{background:var(--panel);box-shadow:var(--shadow);padding:24px}.panel,.soft-panel{border:1px solid var(--line);border-radius:8px}.soft-panel{background:var(--panel-soft);padding:20px}.grid{display:grid;grid-gap:18px;gap:18px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.app-shell{display:grid;grid-gap:24px;gap:24px;grid-template-columns:220px minmax(0,1fr)}.side{align-self:start;background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px;position:-webkit-sticky;position:sticky;top:88px}.side a,.side button{background:transparent;border:0;color:var(--muted);display:block;min-height:0;padding:10px 8px;text-align:left;width:100%}.metric-row{display:grid;grid-gap:16px;gap:16px;grid-template-columns:repeat(3,minmax(0,1fr))}.metric{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px}.metric strong{display:block;font-size:30px;margin-top:8px}.form{display:grid;grid-gap:14px;gap:14px}.field{display:grid;grid-gap:6px;gap:6px}.field span{color:var(--muted);font-size:13px;font-weight:700}input,select,textarea{background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--ink);min-height:44px;padding:10px 12px;width:100%}textarea{min-height:120px;resize:vertical}.error{color:var(--danger);font-size:14px}.success{color:var(--primary-dark);font-size:14px;font-weight:700}.room-grid{display:grid;grid-gap:18px;gap:18px;grid-template-columns:minmax(0,1fr) 320px}.room-stage{display:grid;grid-gap:16px;gap:16px}.room-stage-header{align-items:flex-start;display:flex;gap:16px;justify-content:space-between}.room-control-panel h2,.room-stage-header h2{margin-bottom:0}.status-stack{align-items:flex-end;display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}.status-pill{align-items:center;background:#edf4f2;border:1px solid #cfe0dc;border-radius:999px;color:var(--primary-dark);display:inline-flex;font-size:13px;font-weight:800;min-height:30px;padding:0 10px;white-space:nowrap}.status-pill.strong{background:var(--primary);border-color:var(--primary);color:#fff}.video-frame{background:#101916;border-radius:8px;min-height:520px;overflow:hidden;position:relative}.mosaic-grid{display:grid;grid-gap:8px;gap:8px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));height:100%;min-height:520px;padding:8px}.mosaic-tile{aspect-ratio:16/9;background:#1d2a25;border-radius:8px;min-height:210px;overflow:hidden}.mosaic-tile video{height:100%;object-fit:cover;width:100%}.video-status{background:rgba(0,0,0,.5);bottom:12px;color:#fff;left:12px;line-height:1.5;max-width:calc(100% - 24px);padding:8px 10px;position:absolute;border-radius:8px}.remote-grid{display:grid;grid-gap:10px;gap:10px;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:12px}.remote-tile{min-height:210px}.remote-tile video{height:100%;object-fit:cover;width:100%}.room-control-panel{align-self:start;display:grid;grid-gap:18px;gap:18px}.room-safety-list{border:1px solid var(--line);border-radius:8px;overflow:hidden}.room-safety-list div{align-items:center;display:flex;justify-content:space-between;gap:12px;padding:12px 14px}.room-safety-list div+div{border-top:1px solid var(--line)}.room-safety-list span{color:var(--muted);font-size:13px;font-weight:700}.room-safety-list strong{font-size:14px;text-align:right}.room-actions{gap:10px}.category-card{background:#fff;border:1px solid var(--line);border-radius:8px;cursor:pointer;padding:18px;text-align:left;width:100%}.category-card:hover{border-color:var(--primary)}.category-card:disabled{cursor:progress;opacity:.68}.table{border-collapse:collapse;width:100%}.table td,.table th{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left}@media (max-width:860px){.app-shell,.grid.three,.hero,.metric-row,.room-grid{grid-template-columns:1fr}.topbar{align-items:flex-start;height:auto;gap:12px;padding:16px;flex-direction:column}.side{position:static}.room-stage-header{display:grid}.status-stack{align-items:stretch;justify-content:flex-start}.mosaic-grid,.video-frame{min-height:320px}.mosaic-tile,.remote-tile{min-height:160px}}