/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Primary - Red CTA */
.btn-primary {
  background-color: var(--color-cta);
  color: var(--color-text-inverse);
  border-color: var(--color-cta);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-cta-hover);
  border-color: var(--color-cta-hover);
  color: var(--color-text-inverse);
}

/* Secondary - Navy */
.btn-secondary {
  background-color: var(--color-space-cadet);
  color: var(--color-text-inverse);
  border-color: var(--color-space-cadet);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-text-inverse);
}

/* Tertiary - Grey outline */
.btn-tertiary {
  background-color: transparent;
  color: var(--color-text-secondary);
  border-color: var(--color-border-default);
}

.btn-tertiary:hover:not(:disabled) {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

/* Danger */
.btn-danger {
  background-color: var(--color-error);
  color: var(--color-text-inverse);
  border-color: var(--color-error);
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--color-error-hover);
  border-color: var(--color-error-hover);
  color: var(--color-text-inverse);
}

/* Ghost - Text only */
.btn-ghost {
  background-color: transparent;
  color: var(--color-primary);
  border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-bg-secondary);
}

/* Icon button */
.btn-icon {
  padding: var(--spacing-sm);
  min-width: 36px;
  min-height: 36px;
}

/* Sizes */
.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
}


/* ============================================
   FORM ELEMENTS
   ============================================ */

.form-input,
.form-select-legacy,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select-legacy:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(118, 167, 203, 0.2);
}

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

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

.form-error {
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-error);
}


/* ============================================
   CARDS
   ============================================ */

.card {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.card-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border-default);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}


/* ============================================
   TABLES
   ============================================ */

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border-default);
}

.table th {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.table td {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}

.table tbody tr:hover {
  background-color: var(--color-bg-secondary);
}


/* ============================================
   BADGES / TAGS
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
}

.badge-success {
  background-color: var(--color-bg-success);
  color: var(--color-text-success);
}

.badge-warning {
  background-color: var(--color-bg-warning);
  color: var(--color-text-warning);
}

.badge-error {
  background-color: var(--color-bg-error);
  color: var(--color-text-error);
}

.badge-info {
  background-color: var(--color-bg-info);
  color: var(--color-text-info);
}

.badge-neutral {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
}


/* ============================================
   LAYOUT UTILITIES
   ============================================ */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.container--wide {
  max-width: var(--container-2xl);
}

/* Grid system */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Auto-fit grid (responsive without media queries) */
.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.grid-auto--sm {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid-auto--lg {
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

/* Flexbox utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

/* Gap utilities */
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* Margin utilities */
.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* Padding utilities */
.p-0 { padding: 0; }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }


/* ============================================
   FORM SELECT (Native + Custom Arrow)
   Enhanced select with custom dropdown arrow styling.
   ============================================ */

.form-select {
  width: 100%;
  padding: 10px 36px 10px 14px;
  border: 1px solid var(--color-platinum);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  appearance: none;
  cursor: pointer;
  min-height: 44px;
}

.form-select:focus {
  outline: none;
  border-color: var(--color-air-blue);
  box-shadow: 0 0 0 3px rgba(118, 167, 203, 0.15);
}

.form-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-select--sm {
  padding: 6px 32px 6px 10px;
  font-size: var(--font-size-sm);
  min-height: 32px;
}


/* ============================================
   LOADING STATES
   ============================================ */

/* Skeleton loading */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-tertiary) 0%,
    var(--color-bg-secondary) 50%,
    var(--color-bg-tertiary) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-pulse 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--spacing-sm);
}

.skeleton-text--sm { width: 60%; }
.skeleton-text--md { width: 80%; }

.skeleton-circle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
}

.skeleton-card {
  height: 200px;
}

@keyframes skeleton-pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-platinum);
  border-top-color: var(--color-space-cadet);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

.spinner--sm { width: 16px; height: 16px; }
.spinner--lg { width: 32px; height: 32px; }

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

/* Button loading state */
.btn--loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn--loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-top: -8px;
  margin-left: -8px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

/* ============================================
   CHART CONTAINERS
   ============================================ */

.chart-container {
  position: relative;
  width: 100%;
  min-height: var(--chart-min-height, 200px);
  padding: var(--spacing-md);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-platinum);
  border-radius: var(--radius-lg);
}

.chart-container--card {
  box-shadow: var(--shadow-sm);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.chart-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.chart-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

.chart-canvas-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: var(--chart-aspect-ratio-default, 2/1);
}

.chart-canvas-wrapper--square {
  aspect-ratio: 1/1;
  max-width: 300px;
  margin: 0 auto;
}

.score-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-md);
}

.score-legend-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.score-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
}