:root {
  --petrol: #0f5c63;
  --petrol-dark: #0a4349;
  --petrol-soft: #e6f1f1;
  --green: #4caf7d;
  --green-dark: #2e8b5a;
  --amber: #e0a92e;
  --amber-soft: #fbf1d8;
  --ink: #16242a;
  --muted: #6b7f84;
  --line: #e2e9ea;
  --bg: #f4f7f7;
  --card: #ffffff;
  --danger: #c2453b;
  --danger-dark: #8f2d25;
  --green-darker: #1f7a4d;
  --radius: 16px;
  --shadow: 0 6px 24px rgba(15, 92, 99, 0.08);
  font-family: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(76, 175, 125, 0.08), transparent 60%),
    var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

/* --- Marke: kleine Ampel-Leuchte --- */
.brand { display: flex; align-items: center; gap: 11px; font-size: 1.12rem; }
.brand-name { letter-spacing: .2px; }
.brand-name strong { color: var(--petrol); }
.brand-light {
  width: 16px; height: 26px; border-radius: 6px;
  background: #11343a; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 2px; padding: 3px 0;
  box-shadow: inset 0 1px 3px rgba(0,0,0,.4);
}
.brand-bulb {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green), 0 9px 0 rgba(224,169,46,.35), 0 -9px 0 rgba(194,69,59,.35);
  animation: bulbpulse 3s ease-in-out infinite;
}
@keyframes bulbpulse {
  0%, 100% { box-shadow: 0 0 6px var(--green), 0 9px 0 rgba(224,169,46,.3), 0 -9px 0 rgba(194,69,59,.3); }
  50% { box-shadow: 0 0 11px var(--green), 0 9px 0 rgba(224,169,46,.5), 0 -9px 0 rgba(194,69,59,.45); }
}

/* --- Topbar --- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.topbar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.updated { color: var(--muted); font-size: .82rem; }
.user-chip {
  background: var(--petrol-soft); color: var(--petrol-dark);
  padding: 5px 12px; border-radius: 999px; font-weight: 600; font-size: .85rem;
}
.demo-badge {
  background: var(--amber-soft); color: #8a6516; border: 1px solid #ecd9a8;
  padding: 4px 11px; border-radius: 999px; font-weight: 700; font-size: .72rem;
  letter-spacing: .5px; animation: rise .4s ease backwards;
}
.ghost {
  border: 1px solid var(--line); background: var(--card); color: var(--muted);
  border-radius: 10px; padding: 6px 12px; cursor: pointer; font-size: .9rem;
  transition: all .18s ease;
}
.ghost:hover { color: var(--petrol); border-color: var(--petrol); transform: translateY(-1px); }
#refreshBtn.spin { animation: spin .6s ease; }
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Layout --- */
.layout { max-width: 1100px; margin: 0 auto; padding: 24px; }

.legende {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 18px; margin-bottom: 20px; box-shadow: var(--shadow); font-size: .85rem;
  animation: rise .35s ease backwards;
}
.leg-titel { font-weight: 600; color: var(--petrol-dark); }
.leg { font-weight: 500; color: var(--ink); }
.leg.doppelgruen { color: var(--green-darker); font-weight: 600; }
.leg.gruen { color: var(--green-dark); }
.leg.gelb { color: #a97d15; }
.leg.rot { color: var(--danger); }
.leg.doppelrot { color: var(--danger-dark); font-weight: 600; }

.bereich { margin-bottom: 28px; animation: rise .35s ease backwards; }
.bereich-titel {
  font-size: 1.05rem; margin: 0 0 12px; color: var(--petrol-dark);
  display: flex; align-items: center; gap: 10px;
}
.bereich-titel::before {
  content: ''; width: 10px; height: 10px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--green), var(--petrol));
}
.kacheln {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 16px;
}

/* --- Ampel-Kachel --- */
.kachel {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
  position: relative; overflow: hidden;
  transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s ease;
  animation: rise .4s ease backwards;
}
.kachel:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(15,92,99,.14); }
.kachel::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
  background: var(--line); transition: background .3s ease;
}
.kachel.ampel-doppelgruen::before { background: var(--green-darker); }
.kachel.ampel-gruen::before { background: var(--green); }
.kachel.ampel-gelb::before { background: var(--amber); }
.kachel.ampel-rot::before { background: var(--danger); }
.kachel.ampel-doppelrot::before { background: var(--danger-dark); }

.kachel-kopf { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.kachel-titel h3 { margin: 0; font-size: 1.05rem; line-height: 1.2; }
.kachel-titel .epic { color: var(--muted); font-size: .72rem; letter-spacing: .3px; }

/* kleine stehende Ampel */
.ampel {
  background: #11343a; border-radius: 8px; padding: 5px 4px;
  display: flex; flex-direction: column; gap: 4px; flex-shrink: 0;
  box-shadow: inset 0 1px 4px rgba(0,0,0,.45);
}
.ampel5 .licht { width: 11px; height: 11px; }
.licht { width: 13px; height: 13px; border-radius: 50%; background: #2c4b50; transition: all .35s ease; }
.licht.rot.an { background: var(--danger); box-shadow: 0 0 10px rgba(194,69,59,.9); }
.licht.gelb.an { background: var(--amber); box-shadow: 0 0 10px rgba(224,169,46,.9); }
.licht.gruen.an { background: var(--green); box-shadow: 0 0 11px rgba(76,175,125,.95); animation: glow 2.2s ease-in-out infinite; }
@keyframes glow { 50% { box-shadow: 0 0 16px rgba(76,175,125,1); } }

.preis-zeile { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 4px; }
.preis { font-size: 1.7rem; font-weight: 700; letter-spacing: -.5px; }
.aenderung { font-weight: 600; font-size: .9rem; display: inline-flex; align-items: center; gap: 5px; }
.aenderung .pfeil { font-size: .8rem; }
.aenderung.hoch { color: var(--danger); }
.aenderung.runter { color: var(--green-dark); }
.aenderung.gleich { color: var(--muted); }

.deutung { color: var(--muted); font-size: .85rem; margin: 2px 0 12px; }
.settle { color: var(--petrol); font-weight: 600; white-space: nowrap; }
.quelle { background: var(--petrol-soft); color: var(--petrol-dark); padding: 2px 8px; border-radius: 999px; font-weight: 600; font-size: .72rem; }

.spark { width: 100%; height: 48px; display: block; }
.spark-leer { height: 48px; display: flex; align-items: center; color: var(--muted); font-size: .8rem; font-style: italic; }

.kachel-fuss { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; font-size: .78rem; color: var(--muted); }
.demo-dot { background: var(--amber-soft); color: #8a6516; padding: 2px 8px; border-radius: 999px; font-weight: 600; }
.kachel-fehler { margin-top: 10px; color: var(--danger); font-size: .8rem; }

.empty {
  grid-column: 1 / -1;
  background: var(--card); border: 1px dashed var(--line); border-radius: var(--radius);
  padding: 32px; text-align: center; color: var(--petrol-dark); font-weight: 500;
}
.fuss { color: var(--muted); font-size: .82rem; margin-top: 22px; text-align: center; }

@keyframes rise { from { opacity: 0; transform: translateY(10px); } }

/* --- Login --- */
.login-body {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px;
  background:
    radial-gradient(900px 500px at 50% -10%, rgba(76,175,125,.14), transparent 60%),
    radial-gradient(700px 400px at 90% 110%, rgba(15,92,99,.10), transparent 60%),
    var(--bg);
}
.login-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 20px;
  padding: 32px 30px; width: 100%; max-width: 360px; box-shadow: 0 18px 50px rgba(15,92,99,.14);
  animation: rise .5s ease backwards;
}
.login-hint { color: var(--muted); font-size: .9rem; margin: 10px 0 20px; }
.login-card form { display: flex; flex-direction: column; gap: 14px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; font-size: .85rem; font-weight: 600; color: var(--petrol-dark); }
.login-card input {
  border: 1px solid var(--line); border-radius: 11px; padding: 11px 13px; font-size: 1rem;
  font-family: inherit; transition: border-color .18s ease, box-shadow .18s ease;
}
.login-card input:focus { outline: none; border-color: var(--petrol); box-shadow: 0 0 0 3px var(--petrol-soft); }
.login-card button {
  margin-top: 6px; border: none; border-radius: 11px; padding: 12px;
  background: var(--petrol); color: #fff; font-weight: 600; font-size: 1rem; cursor: pointer;
  transition: transform .15s ease, filter .15s ease;
}
.login-card button:hover { filter: brightness(1.07); transform: translateY(-1px); }
.login-card button:disabled { opacity: .6; cursor: default; transform: none; }
.login-error { color: var(--danger); font-size: .85rem; margin: 4px 0 0; text-align: center; }
.shake { animation: shake .4s ease; }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-7px); }
  40%, 80% { transform: translateX(7px); }
}

@media (max-width: 520px) {
  .topbar { padding: 12px 16px; }
  .layout { padding: 16px; }
  .grid { grid-template-columns: 1fr; }
}