/* ─────────────────────────────────────────────────────────────────────── */
/* Panel Component — Dropdowns, Modals, Slide-In Panels                    */
/* ─────────────────────────────────────────────────────────────────────── */

/* ─────────────────────────────────────────────────────────────────────── */
/* Backdrop (Overlay for modals/panels)                                     */
/* ─────────────────────────────────────────────────────────────────────── */

.panel-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-colors);
}

.panel-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

/* ─────────────────────────────────────────────────────────────────────── */
/* Dropdown Panel (Floating menu)                                           */
/* ─────────────────────────────────────────────────────────────────────── */

.panel-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 6px;
  background-color: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 300;
  min-width: 160px;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity var(--transition-motion), transform var(--transition-motion);
}

.panel-dropdown.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.panel-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition-colors);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.panel-dropdown-item:hover {
  background-color: var(--bg-3);
  color: var(--text);
}

.panel-dropdown-item:first-child {
  border-radius: 12px 12px 0 0;
}

.panel-dropdown-item:last-child {
  border-radius: 0 0 12px 12px;
}

.panel-dropdown-divider {
  height: 1px;
  background-color: var(--line);
  margin: 4px 0;
}

/* ─────────────────────────────────────────────────────────────────────── */
/* Slide-In Panel (from right side, for detail views)                      */
/* ─────────────────────────────────────────────────────────────────────── */

.panel-slide {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(480px, 100%);
  max-width: 100vw;
  background: linear-gradient(180deg, var(--col-bg-start) 0%, var(--col-bg-end) 100%);
  border-left: 1px solid var(--line);
  z-index: 250;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-motion);
  box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
}

.panel-slide.open {
  transform: translateX(0);
}

.panel-slide-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}

.panel-slide-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
  margin: 0;
}

.panel-slide-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background-color: transparent;
  color: var(--text-dim);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-colors);
  flex-shrink: 0;
}

.panel-slide-close:hover {
  background-color: var(--bg-2);
  border-color: var(--hover-bd);
}

.panel-slide-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

.panel-slide-footer {
  display: flex;
  gap: 8px;
  padding: 16px;
  border-top: 1px solid var(--line);
  flex-shrink: 0;
  background-color: var(--bg-0);
}

/* ─────────────────────────────────────────────────────────────────────── */
/* Modal Panel (centered, fullscreen with max-width)                        */
/* ─────────────────────────────────────────────────────────────────────── */

.panel-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  background: linear-gradient(180deg, var(--col-bg-start) 0%, var(--col-bg-end) 100%);
  border: 1px solid var(--line);
  border-radius: 16px;
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  z-index: 300;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-motion), transform var(--transition-motion);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.panel-modal.open {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

.panel-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}

.panel-modal-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--text);
  margin: 0;
}

.panel-modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background-color: transparent;
  color: var(--text-dim);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-colors);
  flex-shrink: 0;
}

.panel-modal-close:hover {
  background-color: var(--bg-2);
  border-color: var(--hover-bd);
}

.panel-modal-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.panel-modal-footer {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  padding: 16px 20px;
  border-top: 1px solid var(--line);
  flex-shrink: 0;
  background-color: var(--bg-0);
}

/* ─────────────────────────────────────────────────────────────────────── */
/* Responsive                                                                */
/* ─────────────────────────────────────────────────────────────────────── */

@media (max-width: 880px) {
  .panel-slide {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .panel-modal {
    width: 95%;
    max-height: 95vh;
  }

  .panel-modal-header,
  .panel-modal-content,
  .panel-modal-footer {
    padding: 14px 16px;
  }

  .panel-slide-header,
  .panel-slide-content,
  .panel-slide-footer {
    padding: 14px;
  }
}