/* ZANE AI - LAYOUT & GRID SYSTEM
 * Mobile-first responsive layout
 * Task #98128
 */

/* ========================================
   MAIN LAYOUT
   ======================================== */

.zane-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.zane-topbar {
  position: sticky;
  top: 0;
  z-index: var(--z-elevated);
  background: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
}

.topbar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.topbar-logo .icon {
  font-size: 1.5rem;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.zane-main {
  flex: 1;
  padding: var(--spacing-xl) var(--spacing-md);
}

.zane-main.container {
  max-width: 1400px;
  margin: 0 auto;
}

/* ========================================
   TILE GRID SYSTEM
   ======================================== */

.tile-grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: 1fr;
}

/* Mobile: 1 column */
@media (min-width: 640px) {
  .tile-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Tablet/Desktop: 2-3 columns */
@media (min-width: 1024px) {
  .tile-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Large Desktop: 4 columns */
@media (min-width: 1536px) {
  .tile-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Full-width tiles */
.tile-full {
  grid-column: 1 / -1;
}

/* Half-width on large screens */
@media (min-width: 1024px) {
  .tile-half {
    grid-column: span 2;
  }
}

/* ========================================
   TILE COMPONENT
   ======================================== */

.tile {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  min-height: 200px;
}

.tile-header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.tile-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  border-radius: var(--radius-md);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.tile-title-group {
  flex: 1;
}

.tile-title {
  font-size: 1.125rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.tile-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.tile-badge {
  position: absolute;
  top: 0;
  right: 0;
}

.tile-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  position: relative;
  z-index: 1;
}

.tile-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  z-index: 1;
}

.tile-cta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: gap var(--transition-fast);
}

.glass-tile:hover .tile-cta {
  gap: var(--spacing-md);
}

/* ========================================
   STAT DISPLAY
   ======================================== */

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-row:last-child {
  border-bottom: none;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-value {
  font-size: 1.125rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-primary);
}

.stat-value.large {
  font-size: 2rem;
}

/* ========================================
   DROPDOWN MENU
   ======================================== */

.dropdown-menu {
  position: fixed;
  top: 64px;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 400px;
  background: var(--bg-secondary);
  border-left: 1px solid var(--glass-border);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-dropdown);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.dropdown-menu.open {
  transform: translateX(0);
}

.dropdown-section {
  padding: var(--spacing-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dropdown-section-title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-md);
}

.dropdown-items {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.dropdown-item:hover {
  background: var(--glass-bg-hover);
  border-color: var(--accent-primary);
  transform: translateX(-4px);
}

.dropdown-item-icon {
  font-size: 1.25rem;
  min-width: 24px;
}

.dropdown-item-text {
  flex: 1;
}

.dropdown-item-label {
  font-size: 0.875rem;
  font-weight: 600;
}

.dropdown-item-badge {
  margin-left: auto;
}

/* ========================================
   MODAL OVERLAY
   ======================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.9);
  transition: transform var(--transition-base);
}

.modal-overlay.open .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--glass-bg);
  color: var(--text-primary);
}

/* ========================================
   TOAST NOTIFICATIONS
   ======================================== */

.toast-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  min-width: 300px;
  pointer-events: all;
  animation: slideInRight var(--transition-base) ease-out;
}

.toast.success {
  border-left: 4px solid var(--status-success);
}

.toast.error {
  border-left: 4px solid var(--status-error);
}

.toast.warning {
  border-left: 4px solid var(--status-warning);
}

.toast.info {
  border-left: 4px solid var(--status-info);
}

.toast-icon {
  font-size: 1.25rem;
}

.toast-message {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text-primary);
}

/* ========================================
   EMPTY STATES
   ======================================== */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  text-align: center;
  gap: var(--spacing-md);
}

.empty-state-icon {
  font-size: 4rem;
  opacity: 0.3;
}

.empty-state-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--text-secondary);
}

.empty-state-description {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 400px;
}

/* ========================================
   MOBILE OPTIMIZATIONS
   ======================================== */

@media (max-width: 640px) {
  .zane-main {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .topbar-inner {
    padding: var(--spacing-sm);
  }

  .topbar-logo {
    font-size: 1rem;
  }

  .tile-grid {
    gap: var(--spacing-md);
  }

  .tile {
    min-height: 160px;
  }

  .tile-icon {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }

  .tile-title {
    font-size: 1rem;
  }

  .dropdown-menu {
    max-width: 100%;
    top: 56px;
  }

  .modal-content {
    padding: var(--spacing-lg);
  }

  .toast-container {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    left: var(--spacing-sm);
  }

  .toast {
    min-width: auto;
  }
}

/* ========================================
   DETAIL VIEWS (Task #103603)
   ======================================== */

.detail-view {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: var(--z-dropdown);
  overflow-y: auto;
  animation: slideInRight var(--transition-base) ease-out;
}

.detail-header {
  position: sticky;
  top: 0;
  z-index: var(--z-elevated);
  background: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.detail-header h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}

.detail-header p {
  font-size: 0.875rem;
  margin: var(--spacing-xs) 0 0 0;
}

.detail-content {
  padding: var(--spacing-lg) var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
}

.back-button {
  font-size: 1.5rem !important;
  padding: var(--spacing-sm) !important;
}

@media (max-width: 640px) {
  .detail-header {
    padding: var(--spacing-sm);
  }

  .detail-header h2 {
    font-size: 1.25rem;
  }

  .detail-content {
    padding: var(--spacing-md) var(--spacing-sm);
  }
}