:root{--bg:#0f1117;--card:#181b24;--hover:#222634;--border:#2a2f3d;--text:#e6e9f0;--muted:#8a93a6;--accent:#3b82f6;--success:#22c55e;--warning:#f59e0b;--danger:#ef4444;--overlay:rgba(0,0,0,.6);color-scheme:dark}
/* Hell: Geraet hell und nichts gewaehlt, oder fest "hell" */
@media (prefers-color-scheme: light){:root:not([data-theme="dark"]){--bg:#f4f6fa;--card:#ffffff;--hover:#eef1f6;--border:#dde2ea;--text:#151a24;--muted:#5f6b7d;--accent:#2563eb;--success:#15803d;--warning:#b45309;--danger:#c81e1e;--overlay:rgba(15,23,42,.35);color-scheme:light}}
:root[data-theme="light"]{--bg:#f4f6fa;--card:#ffffff;--hover:#eef1f6;--border:#dde2ea;--text:#151a24;--muted:#5f6b7d;--accent:#2563eb;--success:#15803d;--warning:#b45309;--danger:#c81e1e;--overlay:rgba(15,23,42,.35);color-scheme:light}
.switch{display:inline-flex;border:1px solid var(--border);border-radius:7px;overflow:hidden}
.switch button{background:none;border:0;color:var(--muted);padding:5px 9px;font:inherit;font-size:.75rem;cursor:pointer}
.switch button.on{background:var(--accent);color:#fff}
.switch button+button{border-left:1px solid var(--border)}
.prefs{display:flex;gap:8px;align-items:center}
.login-prefs{position:fixed;top:12px;right:12px}
.tag{display:inline-block;font-size:.68rem;padding:0 6px;border-radius:7px;background:var(--hover);color:var(--muted);margin-left:4px}
.tag.signage{background:rgba(59,130,246,.15);color:var(--accent)}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent);text-decoration:none}
header{display:flex;align-items:center;gap:16px;padding:12px 24px;border-bottom:1px solid var(--border);background:var(--card);flex-wrap:wrap}
header h1{font-size:1rem;margin:0}
header small{color:var(--muted)}
nav{display:flex;gap:4px;flex-wrap:wrap;flex:1}
nav button{background:none;border:0;color:var(--muted);padding:8px 12px;border-radius:6px;cursor:pointer;font:inherit}
nav button.active{background:var(--accent);color:#fff}
main{padding:24px;max-width:1300px;margin:0 auto}
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px;margin-bottom:16px}
.card h2{font-size:1rem;margin:0 0 4px}
.hint{color:var(--muted);font-size:.8rem}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}
.btn{background:var(--hover);border:1px solid var(--border);color:var(--text);padding:7px 12px;border-radius:6px;cursor:pointer;font:inherit;font-size:.85rem}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.danger{color:var(--danger)}
.btn.sm{padding:4px 9px;font-size:.78rem}
input,select{background:var(--bg);border:1px solid var(--border);color:var(--text);border-radius:6px;padding:7px 10px;font:inherit;width:100%}
label{display:block;font-size:.78rem;color:var(--muted);margin:10px 0 4px}
table{width:100%;border-collapse:collapse;font-size:.85rem}
th{text-align:left;color:var(--muted);font-weight:500;font-size:.72rem;text-transform:uppercase;padding:8px;border-bottom:1px solid var(--border)}
td{padding:8px;border-bottom:1px solid var(--border);vertical-align:top}
.chip{display:inline-flex;align-items:center;gap:4px;padding:1px 8px;border-radius:9px;font-size:.72rem;background:var(--hover);color:var(--muted)}
.chip.ok{background:rgba(34,197,94,.15);color:var(--success)}
.chip.off{background:rgba(239,68,68,.15);color:var(--danger)}
.chip.warn{background:rgba(245,158,11,.15);color:var(--warning)}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;background:currentColor}
.code{font-family:ui-monospace,monospace;background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:2px 8px;letter-spacing:1px}
pre{background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:10px;overflow:auto;font-size:.78rem}
.modal-bg{position:fixed;inset:0;background:var(--overlay);display:flex;align-items:flex-start;justify-content:center;padding:40px 16px;overflow:auto;z-index:50}
.modal{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:20px;width:100%;max-width:640px}
.modal h3{margin:0 0 8px}
.actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
.login{max-width:380px;margin:80px auto}
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.thumb{border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--bg)}
.thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.thumb div{padding:6px 8px;font-size:.75rem;display:flex;justify-content:space-between;gap:6px;align-items:center}
.days button{min-width:36px}
.days button.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.slot{border:1px solid var(--border);border-radius:8px;padding:10px;margin-top:10px}
.item{display:flex;gap:8px;align-items:center;margin-top:6px}
.item img{width:48px;height:30px;object-fit:cover;border-radius:3px}
#toasts{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:8px;z-index:100}
.toast{background:var(--card);border:1px solid var(--border);border-left:4px solid var(--accent);padding:10px 14px;border-radius:6px;max-width:360px}
.toast.error{border-left-color:var(--danger)}
canvas.qr{image-rendering:pixelated;width:200px;height:200px;background:#fff;padding:0;border-radius:6px}
@media(max-width:700px){main{padding:12px}header{padding:10px 12px}.card{overflow-x:auto}}

.demo-bar{background:#f59e0b;color:#111;text-align:center;padding:6px 12px;font-size:.85rem;font-weight:600}
.demo-start{margin-top:16px}