/* ============================================================
   Kalender zum Ausdrucken – Tool-spezifische Ergänzungen
   Baut auf invoice-generator.css auf (invgen-* Klassen).
   ============================================================ */

/* Kacheln Jahresübersicht / Monatskalender */
.cal-tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
}

.cal-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 10px;
  border: 1.5px solid var(--border-color, #e5e7eb);
  border-radius: 10px;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.cal-tile input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.cal-tile:hover,
.cal-tile:has(input:focus-visible) {
  border-color: var(--color-primary);
}

.cal-tile:has(input:checked) {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.07), rgba(220, 38, 38, 0.02));
}

.cal-tile-icon {
  display: flex;
  color: var(--color-primary);
}

.cal-tile-label {
  font-size: 0.9rem;
  font-weight: 600;
}

.cal-tile-note {
  font-size: 0.78rem;
  color: var(--text-secondary, #6b7280);
  line-height: 1.35;
}

/* Farbwahl */
.cal-colors {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

.cal-color {
  position: relative;
  cursor: pointer;
}

.cal-color input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.cal-color-dot {
  display: block;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--cal-swatch);
  box-shadow: 0 0 0 2px #fff, 0 0 0 3px var(--border-color, #e5e7eb);
  transition: box-shadow 0.15s ease;
}

.cal-color:has(input:checked) .cal-color-dot,
.cal-color:has(input:focus-visible) .cal-color-dot {
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--cal-swatch);
}

/* Vorschau */
.cal-preview-card {
  padding: 18px;
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 12px;
  background: #fff;
}

.cal-preview-card h3 {
  margin: 0 0 12px;
  font-size: 0.95rem;
  font-weight: 700;
}

.cal-preview {
  min-height: 180px;
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.06);
}

.cal-preview canvas {
  display: block;
}

.cal-preview-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
  font-size: 0.9rem;
  font-weight: 600;
}

.cal-preview-nav[hidden] {
  display: none;
}

.cal-error {
  margin: 10px 0 0;
  padding: 10px 12px;
  border-radius: 8px;
  background: #fef2f2;
  color: #b91c1c;
  font-size: 0.85rem;
}