/* ==========================================================================
   WINDOW DISPLAY PLANNER UI
   ========================================================================== */

.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-sidebar);
  border-inline-end: 1px solid var(--border-subtle);
  position: fixed;
  top: 0;
  bottom: 0;
  inset-inline-start: 0;
  display: flex;
  flex-direction: column;
  z-index: var(--z-sidebar);
  transition: transform var(--transition-base);
}

.sidebar-header {
  height: var(--header-height);
  padding-inline: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.brand-icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #0284c7 0%, #38bdf8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 800;
  font-family: var(--font-mono);
}

.brand-title {
  font-weight: 700;
  font-size: 1rem;
}

.nav-list {
  padding: 1rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.nav-item:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background-color: var(--primary-surface);
  color: var(--primary);
  font-weight: 600;
}

/* Main Area */
.main-area {
  flex: 1;
  margin-inline-start: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  [dir="rtl"] .sidebar { transform: translateX(100%); }
  .sidebar.open { transform: translateX(0) !important; }
  .main-area { margin-inline-start: 0; }
}

/* Header */
.top-header {
  height: var(--header-height);
  background-color: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  padding-inline: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: var(--z-header);
}

.header-btn {
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.header-btn:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--border-active);
}

/* Content Area */
.content-wrapper {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* --------------------------------------------------------------------------
   WINDOW FACADE STAGING STAGE
   -------------------------------------------------------------------------- */
.window-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.5rem;
  align-items: flex-start;
}

@media (max-width: 1100px) {
  .window-layout { grid-template-columns: 1fr; }
}

.window-glass-frame {
  background-color: var(--bg-window-frame);
  border: 4px solid #334155;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  min-height: 480px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.glass-reflection {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0) 40%, rgba(255,255,255,0.04) 100%);
  pointer-events: none;
  z-index: 10;
}

.spotlight-cone {
  position: absolute;
  top: 0;
  width: 180px;
  height: 100%;
  background: radial-gradient(ellipse at top, rgba(254, 240, 138, 0.35) 0%, rgba(254, 240, 138, 0) 75%);
  pointer-events: none;
  z-index: 5;
  transition: opacity var(--transition-fast);
}

.backdrop-banner {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  z-index: 1;
}

.window-staging-area {
  position: relative;
  z-index: 6;
  flex: 1;
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  padding-bottom: 2rem;
}

.window-mannequin {
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform var(--transition-fast);
}

.window-pedestal {
  width: 120px;
  height: 24px;
  background: linear-gradient(180deg, #94a3b8 0%, #475569 100%);
  border-radius: 4px;
  box-shadow: 0 8px 12px rgba(0,0,0,0.4);
  margin-top: 0.5rem;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(8, 13, 26, 0.75);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal-backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.open { display: flex; }

.modal-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.btn-primary { background-color: var(--primary); color: var(--text-inverse); }
.btn-primary:hover { background-color: var(--primary-hover); }
.btn-secondary { background-color: var(--bg-surface-elevated); color: var(--text-primary); border-color: var(--border-medium); }
.btn-secondary:hover { background-color: var(--bg-surface-hover); }
.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.78rem; }

/* Forms */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-control {
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background-color: var(--bg-input);
  color: var(--text-primary);
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  inset-inline-end: 1.5rem;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-size: 0.85rem;
  box-shadow: var(--shadow-lg);
}