:root {
  --bg: #0f1419;
  --panel: #1a2230;
  --panel-2: #222d3d;
  --border: #2d3a4d;
  --text: #e6edf3;
  --muted: #8b9bb0;
  --accent: #4ea1ff;
  --green: #2ea043;
  --yellow: #d4a017;
  --red: #e5484d;
  --grey: #6b7785;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.topbar {
  display: flex; align-items: center; gap: 1.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
header.topbar .brand { font-weight: 700; font-size: 1.05rem; white-space: nowrap; }
header.topbar nav { display: flex; gap: 1rem; flex-wrap: wrap; }
header.topbar nav a { color: var(--muted); font-size: 0.95rem; }
header.topbar nav a.active, header.topbar nav a:hover { color: var(--text); }
header.topbar .spacer { flex: 1; }
header.topbar form { margin: 0; }
.btn {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 0.4rem 0.8rem; cursor: pointer; font-size: 0.9rem;
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); color: #06121f; border-color: var(--accent); font-weight: 600; }

main { max-width: 1100px; margin: 0 auto; padding: 1.5rem 1.25rem 3rem; }
h1 { font-size: 1.5rem; margin: 0 0 0.25rem; }
h2 { font-size: 1.15rem; margin: 1.75rem 0 0.75rem; }
.sub { color: var(--muted); margin: 0 0 1.5rem; font-size: 0.95rem; }

.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.1rem 1.2rem;
}
.card h3 { margin: 0 0 0.5rem; font-size: 0.85rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.card .big { font-size: 1.6rem; font-weight: 700; }

.ampel {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.3rem 0.7rem; border-radius: 999px; font-weight: 600; font-size: 0.9rem;
}
.ampel .dot { width: 0.7rem; height: 0.7rem; border-radius: 50%; }
.ampel-green  { background: rgba(46,160,67,0.15); color: #5fd07a; }
.ampel-green .dot  { background: var(--green); }
.ampel-yellow { background: rgba(212,160,23,0.15); color: #f0c64b; }
.ampel-yellow .dot { background: var(--yellow); }
.ampel-red    { background: rgba(229,72,77,0.15); color: #ff7b7e; }
.ampel-red .dot    { background: var(--red); }
.ampel-grey   { background: rgba(107,119,133,0.15); color: var(--muted); }
.ampel-grey .dot   { background: var(--grey); }

.berlin-node {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.25rem; margin-bottom: 1rem;
}
.berlin-node .connection { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.berlin-node .train { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 0.75rem 1rem; }
.berlin-node .train .line { font-weight: 700; }
.berlin-node .train .time { font-family: var(--mono); font-size: 1.2rem; }
.berlin-node .arrow { font-size: 1.5rem; color: var(--muted); }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.03em; }
tr:hover td { background: rgba(255,255,255,0.02); }
td.mono, .mono { font-family: var(--mono); }
.tag { display: inline-block; padding: 0.1rem 0.45rem; border-radius: 4px; font-size: 0.8rem; background: var(--panel-2); color: var(--muted); }
.tag.crit { background: rgba(229,72,77,0.15); color: #ff7b7e; }
.ja { color: #5fd07a; font-weight: 600; }
.nein { color: #ff7b7e; font-weight: 600; }
.na { color: var(--muted); }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.notice { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 0.75rem 1rem; margin: 1rem 0; color: var(--muted); }
.notice-warn { border-color: rgba(212,160,23,0.45); color: #f0c64b; }
table.compact th, table.compact td { padding: 0.35rem 0.45rem; font-size: 0.82rem; }
.link-button {
  appearance: none;
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
}
.link-button:hover { text-decoration: underline; }
.modal {
  width: min(720px, calc(100vw - 2rem));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--panel);
  color: var(--text);
}
.modal::backdrop { background: rgba(0,0,0,0.65); }
.modal-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}
.modal-head h3 { margin: 0; }

.route-map-shell {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1.5rem;
}
.route-map-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.route-map-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; }
#route-map {
  height: 440px;
  border-radius: 8px;
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--panel-2);
}
.leaflet-container { color: #111827; }

/* Login */
.login-wrap { max-width: 360px; margin: 8vh auto 0; }
.login-wrap .card { padding: 1.5rem; }
.login-wrap label { display: block; font-size: 0.85rem; color: var(--muted); margin: 0.75rem 0 0.25rem; }
.login-wrap input { width: 100%; padding: 0.6rem 0.7rem; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; color: var(--text); }
.login-wrap .btn-primary { width: 100%; margin-top: 1.25rem; padding: 0.65rem; }
.error { background: rgba(229,72,77,0.12); border: 1px solid rgba(229,72,77,0.4); color: #ff9a9c; padding: 0.6rem 0.8rem; border-radius: 6px; font-size: 0.9rem; }

@media (max-width: 600px) {
  header.topbar { gap: 0.75rem; }
  .berlin-node .arrow { transform: rotate(90deg); }
}