/* ===================================
   LAYOUT - Base Layout Styles
   ===================================
   
   Default structural and layout styles.
   Professional, tight spacing, clean appearance.
*/

/* Body - Full viewport wrapper */
body {
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  background-color: var(--bg-app);  /* #ebe9e6 - App background */
  margin: 0;
  padding: 0;
}

/* Environment banner adjustment */
body {
  --banner-height: 0px;
}

body.has-banner {
  --banner-height: 40px;
  padding-top: 40px;
}

/* App container - manages vertical breathing room only */
.app-container {
  display: flex;
  height: calc(100vh - var(--banner-height) - var(--header-height) - var(--space-4) - var(--space-4));  /* Account for banner + header + margins */
  position: relative;
  overflow: hidden;
  margin: var(--space-4) 0;  /* 16px top/bottom, NO left/right */
}

/* Main content area - manages horizontal breathing room */
.main-content {
  flex: 1;
  margin: 0 var(--space-6) 0 var(--space-3);  /* 0 top, 24px right, 0 bottom, 12px left (gap from sidebar) */
  overflow: hidden;
  background-color: var(--bg-app);  /* #ebe9e6 - App background (matches TEST) */
  box-shadow: var(--shadow-md);
  border-radius: var(--border-radius-lg);  /* 8px (matches TEST) */
  transition: margin-left var(--duration-300) var(--easing-out);
}

/* Module content - OWNS outer padding for all dashboard content */
.module-content {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: var(--space-4);  /* 16px - MODULE OWNS the breathing room */
  overflow: hidden;
  box-sizing: border-box;
  background: var(--bg-workspace);
  border-radius: var(--border-radius-xl);  /* 12px - consistent with Sidebar/Panel */
}

/* Tabbed dashboard layout - tabs handle their own padding */
.module-content.tabbed-dashboard {
  padding: 0;  /* Override - tabs handle their own padding via tab-content-container */
  background: var(--bg-workspace);
  border-radius: var(--border-radius-xl);  /* 12px - consistent with Sidebar/Panel */
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* Loading state */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: var(--space-4);
  color: var(--text-secondary);
}

.loading-spinner {
  font-size: var(--text-4xl);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Custom scrollbar - consistent across app */
*::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: var(--border-radius-sm);
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-default) transparent;
}

/* Section containers */
section {
  margin-bottom: var(--space-5);
}

section:last-child {
  margin-bottom: 0;
}

/* Container utility classes */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.container-sm {
  max-width: var(--container-sm);
}

.container-md {
  max-width: var(--container-md);
}

.container-lg {
  max-width: var(--container-lg);
}

/* Grid layouts */
.grid {
  display: grid;
  gap: var(--space-4);
}

.grid-2 {
  grid-template-columns: var(--grid-cols-2);
}

.grid-3 {
  grid-template-columns: var(--grid-cols-3);
}

.grid-4 {
  grid-template-columns: var(--grid-cols-4);
}

/* Flex utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Card grid layout - LAYOUT ONLY
   NOTE: This is a generic utility. Prefer component-specific grids:
   - .metric-card-grid (MetricCard molecule)
   - .kpi-card-grid (KPICard organism)
   Parent container owns padding, this utility only arranges children. */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

/* Panel actions row (for add buttons at top of panel content) */
.panel-actions-row {
  display: flex;
  justify-content: flex-end;
  padding: var(--space-2) var(--space-3);
  border-bottom: var(--border-width-1) solid var(--border-subtle);
}

/* Form actions split layout (primary action left, secondary right) */
.form-actions-split {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: var(--border-width-1) solid var(--border-subtle);
}

/* Responsive breakpoints */
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .main-content {
    margin: var(--space-2);
    border-radius: var(--border-radius-lg);
  }
  
  .container {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }
}

@media (min-width: 641px) and (max-width: 1024px) {
  .grid-3, .grid-4 {
    grid-template-columns: var(--grid-cols-2);
  }
}