/* ========================================================
   STOCKFLOW | UI COMPONENTS (TASK PULSE DESIGN SYSTEM)
   ======================================================== */

/* ========================================================
   BUTTONS
   ======================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 40px;
  padding: 0 var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  cursor: pointer;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-glow);
}

.btn:disabled, .btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary Coral Button (Task Pulse "+ Add Task" style) */
.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(255, 87, 34, 0.28);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  box-shadow: 0 4px 12px rgba(255, 87, 34, 0.38);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-alt);
  border-color: var(--border-strong);
}

.btn-danger {
  background-color: var(--color-danger);
  color: #FFFFFF;
}

.btn-danger:hover {
  background-color: var(--color-danger-hover);
}

.btn-success {
  background-color: var(--color-success);
  color: #FFFFFF;
}

.btn-success:hover {
  background-color: var(--color-success-hover);
}

.btn-ghost {
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background-color: var(--bg-surface-alt);
  color: var(--text-primary);
}

.btn-sm {
  height: 32px;
  padding: 0 var(--space-3);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn-lg {
  height: 48px;
  padding: 0 var(--space-6);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

.btn-icon {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* Link-style arrow buttons ("View All ->") */
.btn-link-action {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  transition: gap var(--transition-fast);
}

.btn-link-action:hover {
  gap: 7px;
  color: var(--color-primary-hover);
}

/* ========================================================
   CARDS & SURFACES (CLEAN WHITE WITH ROUNDED CORNERS)
   ======================================================== */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.card-interactive:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.card-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.card-subtitle {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin-top: 3px;
}

.card-body {
  padding: var(--space-6);
}

/* ========================================================
   BADGES (PASTEL TONES MATCHING TASK PULSE)
   ======================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: 1.2;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
}

.badge-success {
  background-color: var(--color-success-soft);
  color: var(--color-success-text);
  border: 1px solid var(--color-success-border);
}
.badge-success .badge-dot { background-color: var(--color-success); }

.badge-warning {
  background-color: var(--color-warning-soft);
  color: var(--color-warning-text);
  border: 1px solid var(--color-warning-border);
}
.badge-warning .badge-dot { background-color: var(--color-warning); }

.badge-danger {
  background-color: var(--color-danger-soft);
  color: var(--color-danger-text);
  border: 1px solid var(--color-danger-border);
}
.badge-danger .badge-dot { background-color: var(--color-danger); }

.badge-info, .badge-blue {
  background-color: var(--color-info-soft);
  color: var(--color-info-text);
  border: 1px solid var(--color-info-border);
}
.badge-info .badge-dot, .badge-blue .badge-dot { background-color: var(--color-info); }

.badge-primary, .badge-coral {
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-border);
}
.badge-primary .badge-dot, .badge-coral .badge-dot { background-color: var(--color-primary); }

.badge-purple {
  background-color: var(--color-purple-soft);
  color: var(--color-purple);
  border: 1px solid #DDD6FE;
}
.badge-purple .badge-dot { background-color: var(--color-purple); }

.badge-neutral {
  background-color: var(--bg-surface-alt);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}
.badge-neutral .badge-dot { background-color: var(--text-muted); }

/* ========================================================
   FORM CONTROLS
   ======================================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.form-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label .required {
  color: var(--color-danger);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  height: 42px;
  padding: 0 var(--space-3);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

.form-textarea {
  height: auto;
  min-height: 80px;
  padding: var(--space-3);
  resize: vertical;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: var(--shadow-glow);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--text-muted);
}

.form-input:disabled, .form-select:disabled {
  background-color: var(--bg-surface-alt);
  color: var(--text-muted);
  cursor: not-allowed;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: 2px;
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-danger);
  margin-top: 2px;
}

.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix, .input-suffix {
  position: absolute;
  color: var(--text-muted);
  font-size: var(--text-sm);
  pointer-events: none;
}

.input-prefix { left: 0.85rem; }
.input-suffix { right: 0.85rem; }
.input-has-prefix { padding-left: 2.5rem; }
.input-has-suffix { padding-right: 2.5rem; }

/* ========================================================
   TABLES
   ======================================================== */
.table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: var(--text-sm);
}

.data-table th {
  background-color: var(--bg-surface-alt);
  padding: var(--space-3) var(--space-5);
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
  user-select: none;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.data-table th.sortable {
  cursor: pointer;
  transition: color var(--transition-fast);
}

.data-table th.sortable:hover {
  color: var(--text-primary);
}

.data-table td {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
  background-color: rgba(248, 250, 252, 0.8);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* Pagination Bar */
.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-light);
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ========================================================
   MODALS & DRAWERS
   ======================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(20, 27, 52, 0.45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  padding: var(--space-4);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background-color: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  transform: translateY(12px) scale(0.98);
  transition: transform var(--transition-normal);
  overflow: hidden;
  border: 1px solid var(--border-light);
}

.modal-backdrop.active .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-dialog.modal-lg { max-width: 820px; }
.modal-dialog.modal-xl { max-width: 1060px; }

.modal-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-6);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  background-color: var(--bg-surface-alt);
}

/* Drawer / Slide-Over */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(20, 27, 52, 0.4);
  backdrop-filter: blur(2px);
  z-index: var(--z-drawer);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.drawer-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.drawer-panel {
  position: fixed;
  top: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  max-width: 540px;
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-drawer);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
}

.drawer-backdrop.active .drawer-panel {
  transform: translateX(0);
}

.drawer-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-body {
  padding: var(--space-6);
  overflow-y: auto;
  flex: 1;
}

.drawer-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  background-color: var(--bg-surface-alt);
}

/* ========================================================
   TOASTS
   ======================================================== */
#toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
  max-width: 380px;
}

.toast {
  pointer-events: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  transform: translateX(120%);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
  font-size: var(--text-sm);
  color: var(--text-primary);
}

.toast.show {
  transform: translateX(0);
}

.toast-icon {
  width: 22px;
  height: 22px;
  min-width: 22px;
  margin-top: 2px;
}

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

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

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

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

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 700;
  margin-bottom: 2px;
}

.toast-message {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.toast-close {
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
}
.toast-close:hover { color: var(--text-primary); }

/* Empty States */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-6);
  text-align: center;
}

.empty-state-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.empty-state-title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.empty-state-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  max-width: 360px;
  margin-bottom: var(--space-4);
}

/* ========================================================
   RESPONSIVE GRID UTILITY CLASSES (ZERO INLINE SQUISHING)
   ======================================================== */
.grid-filters-4col {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 12px;
}
@media (max-width: 992px) {
  .grid-filters-4col {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 540px) {
  .grid-filters-4col {
    grid-template-columns: 1fr;
  }
}

.grid-split-2col {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 24px;
}
@media (max-width: 900px) {
  .grid-split-2col {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.grid-form-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 540px) {
  .grid-form-2col {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

.grid-form-3col {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}
@media (max-width: 768px) {
  .grid-form-3col {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

.grid-form-split-1-2 {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 12px;
}
@media (max-width: 640px) {
  .grid-form-split-1-2 {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

.grid-stat-3col {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}
@media (max-width: 480px) {
  .grid-stat-3col {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

/* Modal and Drawer Responsive Constraints */
@media (max-width: 640px) {
  .modal-dialog {
    width: calc(100% - 24px) !important;
    max-width: calc(100% - 24px) !important;
    max-height: 92vh !important;
    margin: 12px !important;
  }
  .modal-header {
    padding: var(--space-4) !important;
  }
  .modal-body {
    padding: var(--space-4) !important;
    max-height: calc(92vh - 120px) !important;
  }
  .modal-footer {
    padding: var(--space-3) var(--space-4) !important;
    flex-wrap: wrap;
    gap: 8px;
  }
  .modal-footer .btn {
    flex: 1 1 auto;
  }
  .drawer-panel {
    width: 100% !important;
    max-width: 100vw !important;
  }
  #toast-container {
    left: 12px !important;
    right: 12px !important;
    top: 12px !important;
    max-width: none !important;
  }
}

/* Touch Friendly Targets on Touch Devices */
@media (hover: none) and (pointer: coarse), (max-width: 768px) {
  .btn {
    min-height: 42px;
  }
  .btn-sm {
    min-height: 36px;
  }
  .form-input, .form-select {
    min-height: 42px;
  }
}

/* Table Horizontal Smooth Scroll Container */
.table-container {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}