:root {
  --color-bg: #f7f7f8;
  --color-surface: #ffffff;
  --color-border: #e2e2e5;
  --color-text: #1c1c1f;
  --color-text-muted: #6b6b73;
  --color-primary: #b5842a;
  --color-status-neu: #6b7280;
  --color-status-bereit: #b5842a;
  --color-status-gesendet: #2563eb;
  --color-status-bestaetigt: #16a34a;
  --color-status-abgeschlossen: #6b7280;
  --color-status-abgelehnt: #dc2626;
  --color-status-fehler: #991b1b;
  --color-status-eskaliert: #c2410c;
  --color-status-no-reply: #6b7280;
  --color-event-row: #eeeef1;
  --color-event-row-open: #fafafb;
  --radius: 8px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #17171a;
    --color-surface: #222226;
    --color-border: #34343a;
    --color-text: #f2f2f3;
    --color-text-muted: #9a9aa2;
    --color-event-row: #2a2a30;
    --color-event-row-open: #38383f;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--color-bg);
  background-image: url("bg-login.png");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--color-text);
}

/* Hintergrundgrafik ist hell/dezent gehalten (Kalender-Motiv) — im dunklen
   Systemmodus würde sie als heller Fleck auf dunklem Grund wirken, deshalb
   dort deaktiviert und nur die reine Hintergrundfarbe verwendet. */
@media (prefers-color-scheme: dark) {
  body {
    background-image: none;
  }
}

.app-header {
  padding: 1rem 1.25rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.app-header h1 {
  margin: 0;
  font-size: 1.25rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.settings-btn {
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.85rem;
  cursor: pointer;
}

.settings-tenant-picker {
  margin-bottom: 1rem;
}

.settings-tenant-picker label {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.settings-tenant-picker select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

.settings-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}

.settings-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.settings-field label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.settings-field input[type="text"],
.settings-field input[type="number"],
.settings-field input[type="time"] {
  padding: 0.5rem 0.6rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
}

.settings-field.settings-checkbox {
  flex-direction: row;
  align-items: center;
  gap: 0.6rem;
  grid-column: 1 / -1;
}

.settings-field.settings-checkbox label {
  color: var(--color-text);
  font-size: 0.85rem;
  order: 2;
}

.settings-field.settings-checkbox input {
  order: 1;
  width: 1.1rem;
  height: 1.1rem;
}

.settings-actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

@media (max-width: 480px) {
  .settings-form {
    grid-template-columns: 1fr;
  }
}

main {
  padding: 1rem 1.25rem 3rem;
  max-width: 1100px;
  margin: 0 auto;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
  margin-bottom: 1.25rem;
}

.filters label {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.filters select,
.filters button {
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
}

.filters button {
  cursor: pointer;
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  font-weight: 600;
}

.thread-list {
  display: grid;
  gap: 0.75rem;
}

.thread-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  cursor: pointer;
  display: grid;
  gap: 0.5rem;
}

.thread-card:hover {
  border-color: var(--color-primary);
}

.thread-card:focus-visible,
.filters select:focus-visible,
.filters button:focus-visible,
.detail-close:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.thread-card .subject {
  font-weight: 600;
}

.thread-card .meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
}

.status-badge {
  display: inline-block;
  width: fit-content;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}

.status-neu {
  background: var(--color-status-neu);
}
.status-entwurf_bereit,
.status-entwurf_freigegeben {
  background: var(--color-status-bereit);
}
.status-vorschlag_gesendet,
.status-wartet_auf_antwort {
  background: var(--color-status-gesendet);
}
.status-bestätigt {
  background: var(--color-status-bestaetigt);
}
.status-abgeschlossen {
  background: var(--color-status-abgeschlossen);
}
.status-entwurf_abgelehnt {
  background: var(--color-status-abgelehnt);
}
.status-kein_koordinationsauftrag {
  background: var(--color-status-abgeschlossen);
}
.status-fehler {
  background: var(--color-status-fehler);
}
.status-eskaliert {
  background: var(--color-status-eskaliert);
}
.status-ohne_antwort_geschlossen {
  background: var(--color-status-no-reply);
}

.empty-state {
  color: var(--color-text-muted);
  text-align: center;
  padding: 2rem 0;
}

/* Ab Tablet-Breite: Status-Badge neben den Betreff statt darunter */
@media (min-width: 640px) {
  .thread-card {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

.detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 10;
}

.hidden {
  display: none;
}

.detail-panel {
  background: var(--color-surface);
  border-radius: var(--radius);
  max-width: 640px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 1.5rem;
  position: relative;
}

.detail-close {
  position: absolute;
  top: 0.6rem;
  right: 0.75rem;
  border: none;
  background: none;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  color: var(--color-text-muted);
}

.approval-panel {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.8rem;
  margin: 0.75rem 0;
}

.approval-panel label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.draft-textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.85rem;
  padding: 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  resize: vertical;
}

.approval-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.6rem;
}

.approve-btn,
.reject-btn {
  border: none;
  border-radius: var(--radius);
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  cursor: pointer;
}

.approve-btn {
  background: var(--color-status-bestaetigt);
  color: #fff;
}

.reject-btn {
  background: var(--color-status-abgelehnt);
  color: #fff;
}

.approval-status {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.event-item {
  border-left: 3px solid var(--color-border);
  margin-bottom: 0.5rem;
}

.event-item summary {
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  list-style: none;
  background: var(--color-event-row);
  border-radius: 4px;
  padding: 0.5rem 0.75rem;
}

.event-item[open] summary {
  background: var(--color-event-row-open);
}

.event-item summary::-webkit-details-marker {
  display: none;
}

.event-item summary::before {
  content: "▸";
  color: var(--color-text-muted);
  font-size: 0.7rem;
  margin-right: -0.2rem;
}

.event-item[open] summary::before {
  content: "▾";
}

.event-item .event-type {
  font-weight: 600;
  font-size: 0.85rem;
  margin-right: 0.6rem;
}

.event-item .event-time {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.event-item .event-detail {
  white-space: pre-wrap;
  font-size: 0.85rem;
  margin-top: 0.4rem;
  padding: 0 0.75rem;
  overflow-wrap: break-word;
}

@media (max-width: 480px) {
  main {
    padding: 0.75rem;
  }
  .app-header {
    padding: 0.75rem 1rem;
  }
  .detail-panel {
    padding: 1.1rem;
  }
}