:root{--bg: #f5f7fa;--surface: #ffffff;--fg: #16202a;--muted: #6b7885;--accent: #1f6feb;--accent-fg: #ffffff;--line: #e3e8ef;--danger: #c0392b;color-scheme:light dark}@media (prefers-color-scheme: dark){:root{--bg: #11151b;--surface: #1a2029;--fg: #e7ecf2;--muted: #90a0b0;--accent: #4c8dff;--accent-fg: #0b1118;--line: #2a3340;--danger: #ff6b5e}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--fg);font-family:-apple-system,Segoe UI,Roboto,PT Sans,system-ui,sans-serif;font-size:16px;line-height:1.45;-webkit-font-smoothing:antialiased}.wrap{max-width:560px;margin:0 auto;padding:16px 14px calc(28px + env(safe-area-inset-bottom)) 14px}.title{font-size:26px;margin:12px 0 4px}.lead{color:var(--muted);margin:0 0 18px}.tabs{display:flex;gap:8px;margin-bottom:12px}.tab{flex:1;padding:11px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--fg);font-size:15px;cursor:pointer}.tab.on{background:var(--accent);color:var(--accent-fg);border-color:var(--accent)}.search{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--fg);font-size:16px;margin-bottom:12px}.search:focus{outline:none;border-color:var(--accent)}.list{display:flex;flex-direction:column;gap:8px}.row{text-align:left;padding:13px 14px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--fg);font-size:16px;cursor:pointer}.row:active{background:var(--bg)}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.who{font-size:19px;font-weight:600}.small{font-size:13px}.muted{color:var(--muted)}.ghost{padding:8px 12px;border-radius:9px;border:1px solid var(--line);background:transparent;color:var(--muted);font-size:14px;cursor:pointer}.datenav{display:flex;align-items:stretch;gap:8px;margin-bottom:16px}.nav{width:44px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--fg);font-size:22px;cursor:pointer}.today{flex:1;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--fg);font-size:15px;cursor:pointer;padding:10px}.today.on{border-color:var(--accent);color:var(--accent)}.card{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:12px;padding:12px 14px;margin-bottom:10px}.time{font-size:13px;color:var(--muted);margin-bottom:4px}.subject{font-size:17px;font-weight:600}.meta{margin-top:6px;color:var(--muted);font-size:14px}.empty{color:var(--muted);padding:24px 0;text-align:center}.error{color:var(--danger);padding:10px 0}.src{margin-top:16px}.wrap{padding-bottom:calc(84px + env(safe-area-inset-bottom))}.bottomnav{position:fixed;left:0;right:0;bottom:0;z-index:10;display:flex;gap:6px;padding:8px 10px calc(8px + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--line)}.navtab{flex:1;padding:11px;border-radius:10px;border:1px solid transparent;background:transparent;color:var(--muted);font-size:15px;cursor:pointer}.navtab.on{background:var(--bg);color:var(--accent);border-color:var(--line);font-weight:600}.slot{padding:0}.slot>summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px}.slot>summary::-webkit-details-marker{display:none}.slot .freecount{font-size:13px;color:var(--accent);font-weight:600;white-space:nowrap}.rooms{display:flex;flex-wrap:wrap;gap:6px;padding:0 14px 14px}.chip{padding:5px 10px;border-radius:8px;border:1px solid var(--line);background:var(--bg);font-size:14px}