/* Orbis Tower – Nacht über der Stadt, warmes Fensterlicht als Akzent. Bewusst ein einziges, dunkles Erscheinungsbild. */
:root {
  --night: #0a1124;
  --panel: #141d36;
  --panel-2: #1f2b50;
  --line: rgba(155, 167, 198, 0.2);
  --ink: #eef1f8;
  --muted: #9ba7c6;
  --lamp: #f2b24c;
  --danger: #ff8a7a;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: ui-rounded, "SF Pro Rounded", system-ui, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--night); color: var(--ink); font: 15px/1.45 var(--font); overflow: hidden; -webkit-font-smoothing: antialiased; }
#app { position: fixed; inset: 0; }
#stage { position: absolute; inset: 0; }
#stage canvas { display: block; width: 100%; height: 100%; touch-action: none; }
.labels { position: absolute; inset: 0; pointer-events: none; }
[hidden] { display: none !important; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--lamp); outline-offset: 2px; }

/* Schilder im 3D-Raum */
.sign { pointer-events: auto; cursor: pointer; display: flex; gap: 6px; align-items: center; font: 600 12px var(--font); color: var(--ink); background: rgba(10, 17, 36, 0.72); border-left: 3px solid var(--c); padding: 3px 8px 3px 6px; border-radius: 3px; white-space: nowrap; }
.sign .lvl { color: var(--c); font-variant-numeric: tabular-nums; }
.sign:hover { background: rgba(31, 43, 80, 0.95); }
.tag { pointer-events: auto; cursor: pointer; display: none; flex-direction: column; align-items: center; text-align: center; background: rgba(10, 17, 36, 0.82); border: 1px solid rgba(242, 178, 76, 0.4); border-radius: 6px; padding: 3px 8px; white-space: nowrap; transform: translateY(-4px); }
.tag b { font-size: 12.5px; }
.tag span { font-size: 11px; color: var(--muted); }
.tag.show, .tag.hover { display: flex; }
.tag.me { display: flex; border-color: transparent; background: transparent; padding: 0; }
.tag.me b { color: var(--lamp); font-size: 11px; letter-spacing: 0.08em; text-shadow: 0 1px 2px #000; }

/* Kopfzeile */
.hud { position: absolute; top: calc(env(safe-area-inset-top, 0px) + 12px); left: 16px; right: 16px; display: flex; gap: 8px; align-items: center; pointer-events: none; }
.hud > * { pointer-events: auto; }
.brand { font: 800 18px var(--font-display); letter-spacing: 0.08em; color: var(--lamp); text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6); margin-right: 4px; }
.floor-display { display: flex; align-items: center; gap: 10px; background: #070c1a; border: 1px solid #2c3a62; border-radius: 8px; padding: 5px 12px; }
.floor-display .num { color: #ff9a4d; font: 700 17px var(--font-display); min-width: 3.4ch; text-align: center; font-variant-numeric: tabular-nums; text-shadow: 0 0 10px rgba(255, 138, 61, 0.55); }
.floor-display .dept { color: var(--muted); font-size: 14px; white-space: nowrap; }
.spacer { flex: 1; }
.btn { font-weight: 600; font-size: 14px; background: var(--panel-2); border: 1px solid #34467c; border-radius: 8px; padding: 7px 12px; cursor: pointer; }
.btn:hover { border-color: var(--lamp); }
.btn.icon { width: 38px; padding: 7px 0; font-size: 18px; line-height: 1; }
.btn.primary { background: var(--lamp); border-color: var(--lamp); color: #14182a; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.big { width: 100%; padding: 13px 16px; font-size: 16px; }
.btn.small { font-size: 12.5px; padding: 5px 9px; }
.btn.ghost { background: transparent; }
.btn.warn { border-color: var(--danger); color: var(--danger); }
.btn[disabled] { opacity: 0.6; cursor: progress; }
.menu-wrap { position: relative; }
.menu { position: absolute; right: 0; top: calc(100% + 6px); background: var(--panel); border: 1px solid #2c3a62; border-radius: 10px; padding: 6px; display: flex; flex-direction: column; min-width: 230px; box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45); }
.menu button { text-align: left; background: transparent; border: 0; padding: 9px 10px; border-radius: 6px; cursor: pointer; }
.menu button:hover { background: var(--panel-2); }

/* Etagenplan */
.directory { position: absolute; top: calc(env(safe-area-inset-top, 0px) + 64px); left: 16px; width: 290px; max-height: calc(100% - 100px); overflow-y: auto; background: rgba(20, 29, 54, 0.95); border: 1px solid #2c3a62; border-radius: 12px; padding: 10px; }
.directory h2 { font: 700 12px var(--font); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin: 4px 6px 8px; }
.floor-list { display: flex; flex-direction: column; gap: 2px; }
.floor-btn { display: grid; grid-template-columns: 3.6em 1fr; gap: 8px; align-items: start; text-align: left; background: transparent; border: 0; border-radius: 8px; padding: 7px 8px; cursor: pointer; }
.floor-btn:hover { background: var(--panel-2); }
.floor-btn.here { background: var(--panel-2); box-shadow: inset 3px 0 0 var(--lamp); }
.floor-btn .lvl { font: 700 13px var(--font-display); color: var(--lamp); font-variant-numeric: tabular-nums; padding-top: 1px; }
.floor-btn .nm { display: block; font-weight: 700; font-size: 14px; }
.floor-btn .who { display: block; color: var(--muted); font-size: 12.5px; }
.floor-btn .sw { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 6px; vertical-align: 1px; }

.hint { position: absolute; left: 50%; bottom: calc(env(safe-area-inset-bottom, 0px) + 16px); transform: translateX(-50%); color: var(--muted); font-size: 13px; background: rgba(7, 12, 26, 0.75); border-radius: 8px; padding: 6px 12px; white-space: nowrap; pointer-events: none; }

/* Gespräch */
.chat { position: absolute; top: calc(env(safe-area-inset-top, 0px) + 64px); right: 16px; bottom: 16px; width: min(420px, calc(100% - 32px)); background: var(--panel); border: 1px solid #2c3a62; border-radius: 14px; display: flex; flex-direction: column; overflow: hidden; box-shadow: 0 18px 50px rgba(0, 0, 0, 0.5); }
.chat-head { display: flex; gap: 10px; align-items: center; padding: 12px 10px 12px 14px; border-bottom: 1px solid var(--line); }
.avatar { width: 40px; height: 40px; border-radius: 50%; flex: none; display: grid; place-items: center; font: 700 15px var(--font-display); color: #14182a; background: var(--accent, var(--lamp)); }
.chat-head .meta { flex: 1; min-width: 0; }
.chat-head .name { font: 700 17px var(--font-display); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat-head .role { color: var(--muted); font-size: 13px; }
.x { background: transparent; border: 0; color: var(--muted); font-size: 20px; cursor: pointer; width: 36px; height: 36px; border-radius: 8px; flex: none; }
.x:hover { color: var(--ink); background: var(--panel-2); }
.msgs { flex: 1; min-height: 0; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 10px; overscroll-behavior: contain; }
.msg { max-width: 88%; padding: 9px 12px; border-radius: 12px; white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.5; }
.msg.assistant { align-self: flex-start; background: var(--panel-2); border-top-left-radius: 4px; border-left: 3px solid var(--accent, var(--lamp)); }
.msg.user { align-self: flex-end; background: #34467c; border-top-right-radius: 4px; }
.msg.typing::after { content: "▍"; color: var(--accent, var(--lamp)); animation: blink 1s steps(2) infinite; }
.msg.error { align-self: center; background: transparent; color: var(--danger); font-size: 13.5px; text-align: center; }
.msg.empty { align-self: center; color: var(--muted); font-size: 13.5px; text-align: center; background: transparent; }
@keyframes blink { 50% { opacity: 0; } }
.chips { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 14px 10px; }
.chip { font-size: 13px; background: transparent; border: 1px solid #3a4a78; border-radius: 999px; padding: 5px 11px; cursor: pointer; }
.chip:hover { border-color: var(--accent, var(--lamp)); }
.chat form { display: flex; gap: 8px; padding: 10px 12px calc(env(safe-area-inset-bottom, 0px) + 10px); border-top: 1px solid var(--line); align-items: flex-end; }
.chat textarea { flex: 1; min-width: 0; resize: none; max-height: 140px; font: 15px/1.4 var(--font); color: var(--ink); background: #0c1428; border: 1px solid #34467c; border-radius: 10px; padding: 9px 11px; }
.chat textarea:focus { outline: 2px solid var(--accent, var(--lamp)); outline-offset: 0; }
.send { font-weight: 700; background: var(--accent, var(--lamp)); color: #14182a; border: 0; border-radius: 10px; padding: 10px 14px; cursor: pointer; }
.send[disabled] { opacity: 0.5; cursor: progress; }

/* Anmeldung */
.auth { position: absolute; inset: 0; display: grid; place-items: center; padding: 16px; background: radial-gradient(ellipse at center, rgba(10, 17, 36, 0.35), rgba(10, 17, 36, 0.85)); }
.card { width: min(400px, 100%); background: rgba(20, 29, 54, 0.92); border: 1px solid #2c3a62; border-radius: 16px; padding: 26px 22px; display: flex; flex-direction: column; gap: 14px; box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55); backdrop-filter: blur(6px); }
.card h1 { margin: 0; font: 800 26px var(--font-display); letter-spacing: 0.08em; color: var(--lamp); text-transform: uppercase; }
.card .lead { margin: 0; color: var(--muted); }
.card details { border-top: 1px solid var(--line); padding-top: 12px; }
.card summary { cursor: pointer; color: var(--muted); font-size: 14px; }
.card details[open] summary { margin-bottom: 10px; color: var(--ink); }
.card details > * + * { margin-top: 8px; }
.card label { display: block; font-size: 13px; color: var(--muted); }
.card input { width: 100%; font: 600 17px ui-monospace, Menlo, monospace; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); background: #0c1428; border: 1px solid #34467c; border-radius: 10px; padding: 10px 12px; }
.card .small { font-size: 13px; color: var(--muted); margin: 0; }
.card .error { margin: 0; min-height: 1.2em; color: var(--danger); font-size: 14px; }

.toast { position: absolute; left: 50%; top: calc(env(safe-area-inset-top, 0px) + 66px); transform: translateX(-50%); background: var(--panel-2); border: 1px solid #34467c; border-radius: 10px; padding: 9px 14px; font-size: 14px; max-width: calc(100% - 32px); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4); }

@media (max-width: 760px) {
  .brand { display: none; }
  .floor-display .dept { max-width: 34vw; overflow: hidden; text-overflow: ellipsis; }
  .directory { left: 16px; right: 16px; width: auto; max-height: 62%; }
  .chat { top: auto; left: 0; right: 0; bottom: 0; width: 100%; height: 68%; border-radius: 16px 16px 0 0; border-bottom: 0; }
  .hint { white-space: normal; text-align: center; width: calc(100% - 32px); }
  .sign { font-size: 10.5px; padding: 2px 6px 2px 5px; }
}
@media (prefers-reduced-motion: reduce) { .msg.typing::after { animation: none; } }