/* Helles Support-Widget-Theme, an Chrono24 angelehnt (Grün auf Weiß).
   Swimlanes: pro Betreuer eine Linie in eigener Farbe — Bot blau,
   Tier-1 grün, Tier-2 bernstein. Der Kunde bleibt neutral grau. */
:root {
  --bg: #eef2ef;
  --card: #ffffff;
  --ink: #17281f;
  --muted: #64766d;
  --border: #d8e1db;
  --green: #00654a;
  --green-soft: #e2f0ea;
  --bot: #2563eb;
  --bot-soft: #eaf0fd;
  --t1: #00654a;
  --t1-soft: #e2f0ea;
  --t2: #b45309;
  --t2-soft: #faf0e2;
}

* { box-sizing: border-box; margin: 0; }

/* display:flex auf .input-row/.examples darf das hidden-Attribut nicht schlagen. */
[hidden] { display: none !important; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  display: flex;
  justify-content: center;
  min-height: 100vh;
}

.chat {
  width: min(760px, 100%);
  display: flex;
  flex-direction: column;
  padding: 1.25rem 1rem 1rem;
  gap: 0.75rem;
}

header h1 { font-size: 1.35rem; font-weight: 650; letter-spacing: -0.01em; }
.subtitle, footer { color: var(--muted); font-size: 0.85rem; }
footer { border-top: 1px solid var(--border); padding-top: 0.6rem; }

.messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 40vh;
}

/* Bubbles: Farbbalken zeigt den Sprecher. */
.msg {
  padding: 0.6rem 0.9rem;
  border-radius: 10px;
  white-space: pre-wrap;
  max-width: 90%;
}
/* Kunde ist neutral grau — Grün gehört den Betreuer-Farben. */
.msg.user {
  background: #f3f5f4;
  border: 1px solid var(--border);
  border-right: 3px solid #8b9a92;
  align-self: flex-end;
}
.msg.bot {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--bot);
  align-self: flex-start;
  white-space: normal;
}
.msg.agent {
  border: 1px solid var(--border);
  align-self: flex-start;
  white-space: normal;
}
.msg.agent.t1 { background: var(--t1-soft); border-left: 3px solid var(--t1); }
.msg.agent.t2 { background: var(--t2-soft); border-left: 3px solid var(--t2); }
.msg.bot p { margin: 0 0 0.5rem; }
.msg.bot p:last-child { margin-bottom: 0; }
.msg.bot ul { margin: 0 0 0.5rem 1.2rem; padding: 0; }
.msg.bot li { margin-bottom: 0.25rem; }

.sources { font-size: 0.85rem; color: var(--muted); }
.sources a { color: var(--green); margin-right: 0.5rem; }

.retrieval, .validation {
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.4rem 0.7rem;
}
.retrieval summary, .validation summary { cursor: pointer; }
.retrieval code, .validation code {
  color: var(--green);
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
}
.retrieval ul { margin: 0.3rem 0 0 1.2rem; }
.validation ul { margin: 0.3rem 0 0 1.2rem; list-style: none; padding: 0; }
.validation li { margin-bottom: 0.2rem; }
.validation .legend { margin-top: 0.4rem; font-size: 0.75rem; }

/* Übergabe-Briefing: Karte mit grünem Kopfbalken. */
.briefing {
  font-size: 0.85rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.briefing-head {
  font-weight: 600;
  background: var(--green);
  color: #fff;
  padding: 0.45rem 0.9rem;
}
.briefing > p, .briefing-row, .briefing .legend { margin: 0.35rem 0.9rem; }
.briefing-row { display: flex; gap: 0.45rem; align-items: flex-start; }
.briefing-row .row-body { flex: 1; min-width: 0; }
.briefing .merit { font-size: 0.82rem; color: var(--muted); font-style: italic; }
.briefing .legend { font-size: 0.75rem; color: var(--muted); padding-bottom: 0.5rem; }
.briefing .belege {
  font-size: 0.78rem; color: var(--muted);
  margin: 0.2rem 0 0.3rem;
}
.briefing .belege summary { cursor: pointer; color: var(--green); }
.briefing .claims { margin: 0.35rem 0.9rem 0.5rem; }
.briefing .claims summary { cursor: pointer; color: var(--green); font-size: 0.8rem; }
.briefing .claims .briefing-row { margin: 0.35rem 0 0.35rem 0.4rem; }
.briefing .belege blockquote {
  margin: 0.3rem 0 0.3rem 0.8rem; padding-left: 0.6rem;
  border-left: 2px solid var(--green);
}

.handover-offer { font-size: 0.85rem; color: var(--muted); }
.handover-link {
  background: none; border: none; color: var(--green);
  cursor: pointer; font-size: inherit; padding: 0; text-decoration: underline;
}
#handover {
  background: var(--card); color: var(--ink); border: 1px solid var(--border);
  border-radius: 8px; padding: 0.6rem 0.9rem; cursor: pointer;
}
#handover:hover { border-color: var(--green); }
#handover:disabled { opacity: 0.5; }

/* Szenario-Auswahl */
.scenarios-row {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; color: var(--muted);
}
.scenario-btn { display: inline-flex; flex-direction: column; align-items: flex-start;
  gap: 0.1rem; border-radius: 10px; text-align: left; }
.scenario-btn small { color: var(--muted); font-size: 0.75rem; }

.scenario-note {
  font-size: 0.85rem; color: var(--ink);
  background: var(--card); border: 1px dashed var(--green);
  border-radius: 8px; padding: 0.5rem 0.8rem;
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem;
}
.lane-chips { display: inline-flex; gap: 0.35rem; }
.lane-chip {
  font-size: 0.72rem; font-weight: 600; border-radius: 999px;
  padding: 0.1rem 0.55rem; color: #fff;
}
.lane-chip.bot { background: var(--bot); }
.lane-chip.t1 { background: var(--t1); }
.lane-chip.t2 { background: var(--t2); }

.line-badge {
  display: block; font-size: 0.7rem; color: var(--muted);
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  margin-bottom: 0.2rem;
}
.line-badge.bot { color: var(--bot); }
.line-badge.t1 { color: var(--t1); }
.line-badge.t2 { color: var(--t2); }

.scenario-nav { font-size: 0.85rem; color: var(--muted); align-self: center;
  padding: 0.2rem 0; }

/* Tabs */
.tabs { display: flex; gap: 0.5rem; border-bottom: 1px solid var(--border); }
.tab {
  background: none; color: var(--muted); border: 0;
  border-bottom: 2px solid transparent; padding: 0.4rem 0.6rem;
  margin-bottom: -1px; cursor: pointer; font-size: 0.95rem;
  display: inline-flex; flex-direction: column; align-items: flex-start;
  gap: 0.1rem; text-align: left;
}
.tab strong { font-weight: 600; }
.tab small { font-size: 0.72rem; font-weight: 400; color: var(--muted); }
.tab.active { color: var(--ink); border-bottom-color: var(--green); }
.tab-intro { font-size: 0.85rem; color: var(--muted); }

/* Swimlane-Zeitachse: linke Rail mit einer Spalte pro Betreuer-Lane.
   row-gap 0, damit die Linien durchlaufen — Abstand macht .tl-content. */
.timeline {
  display: grid;
  grid-template-columns: calc(var(--lane-count, 1) * 1.4rem) 1fr;
  column-gap: 0.8rem;
  row-gap: 0;
}
.tl-content { display: flex; flex-direction: column; gap: 0.4rem;
  min-width: 0; padding-bottom: 0.6rem; }
.tl-content .handover-link { align-self: flex-start; }

.rail { display: flex; }
.lane { position: relative; width: 1.4rem; }
.lane.line::before, .lane.half-top::before, .lane.half-bottom::before {
  content: ""; position: absolute; left: calc(50% - 1px); width: 2px;
  top: 0; bottom: 0; background: currentColor; opacity: 0.45;
}
.lane.half-top::before { bottom: calc(100% - 0.9rem); }
.lane.half-bottom::before { top: 0.9rem; }
.lane.bot { color: var(--bot); }
.lane.t1 { color: var(--t1); }
.lane.t2 { color: var(--t2); }
/* Punkt: dieser Betreuer spricht in dieser Zeile. */
.lane.dot::after {
  content: ""; position: absolute; left: calc(50% - 5px); top: 0.55rem;
  width: 10px; height: 10px; border-radius: 50%;
  background: currentColor; border: 2px solid var(--bg);
}
/* ◆ Start einer neuen Lane am Meilenstein. */
.lane.start::after {
  content: "◆"; position: absolute; left: 50%; top: 0.4rem;
  transform: translateX(-50%); font-size: 0.8rem; line-height: 1;
  color: currentColor;
}

/* Akt-Überschrift als Zwischenzeile rechts der Rail. */
.tl-content.act {
  font-size: 0.72rem; font-weight: 650; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--muted);
  padding: 0.5rem 0 0.35rem;
}
.case-solved { font-size: 0.9rem; font-weight: 650; color: var(--green);
  padding: 0.2rem 0 0.4rem; }
.milestone-label { font-size: 0.85rem; font-weight: 600; }
.milestone-label.t1 { color: var(--t1); }
.milestone-label.t2 { color: var(--t2); }

/* Kino-Modus und Briefing-Inszenierung */
.msg.appear { animation: msg-in 0.3s ease-out; }
@keyframes msg-in {
  from { opacity: 0; transform: translateY(6px); }
}
.play-btn { font-weight: 600; }
.status-icon { display: inline-block; min-width: 1.1em; }

.pulse { animation: handover-pulse 1s ease-in-out 3; }
.loading::after {
  content: ""; display: inline-block; width: 0.75em; height: 0.75em;
  margin-left: 0.4em; border: 2px solid currentColor; border-right-color: transparent;
  border-radius: 50%; animation: spin 0.8s linear infinite; vertical-align: -0.1em;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes handover-pulse {
  0%, 100% { box-shadow: none; }
  50% { box-shadow: 0 0 0 4px #00654a55; border-color: var(--green); }
}
@media (prefers-reduced-motion: reduce) {
  .pulse, .loading::after, .msg.appear { animation: none; }
}

.examples { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.example {
  background: var(--card); color: var(--ink); border: 1px solid var(--border);
  border-radius: 999px; padding: 0.4rem 0.9rem; cursor: pointer; font-size: 0.85rem;
}
.example:hover { border-color: var(--green); }

.input-row { display: flex; gap: 0.5rem; }
#input {
  flex: 1; background: var(--card); color: var(--ink);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 0.6rem 0.9rem; font-size: 1rem;
}
#input:focus-visible, .example:focus-visible, .tab:focus-visible,
#send:focus-visible, #handover:focus-visible, .handover-link:focus-visible {
  outline: 2px solid var(--green); outline-offset: 2px;
}
#send {
  background: var(--green); color: #fff; border: 0; border-radius: 8px;
  padding: 0.6rem 1.2rem; cursor: pointer;
}
#send:disabled { opacity: 0.5; }

@media (max-width: 480px) {
  .timeline { column-gap: 0.5rem; }
  .lane { width: 1.1rem; }
  .msg { max-width: 100%; }
}