/**
 * Faceted Content Testing Overlay Styles
 *
 * GOV.UK Design System-inspired styling for the testing overlay bar.
 * Provides a fixed-position control panel for setting business context.
 */

/* ===================================================================
   Overlay Container
   =================================================================== */

/* Add padding to body to prevent overlay from covering header */
body {
  padding-top: 60px; /* Approximate height of collapsed overlay */
}

.facet-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--color-gov-blue); /* GOV.UK blue */
  color: var(--color-bg-white);
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  font-family: "GDS Transport", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

.facet-overlay[data-visible="false"] {
  background: var(--color-gov-blue-dark); /* Darker blue when collapsed */
}

.facet-overlay__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ===================================================================
   Header
   =================================================================== */

.facet-overlay__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  gap: 16px;
}

.facet-overlay[data-visible="false"] .facet-overlay__header {
  border-bottom: none;
}

.facet-overlay__header-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  min-width: 0;
  flex: 1;
}

.facet-overlay__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.facet-overlay__icon {
  font-size: 20px;
  line-height: 1;
}

/* ===================================================================
   Collapsed Summary
   =================================================================== */

.facet-overlay__summary {
  display: none;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
  padding: 4px 10px;
  background: rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* Show summary only when collapsed */
.facet-overlay[data-visible="false"] .facet-overlay__summary {
  display: flex;
}

.facet-overlay__summary-item {
  font-weight: 500;
  text-transform: capitalize;
}

.facet-overlay__summary-sep {
  color: rgba(255, 255, 255, 0.5);
  font-weight: 300;
}

.facet-overlay__toggle {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--color-bg-white);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-slow);
}

.facet-overlay__toggle:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
}

.facet-overlay__toggle:focus {
  outline: 3px solid var(--color-focus); /* GOV.UK yellow */
  outline-offset: 2px;
}

.facet-overlay__toggle-icon {
  font-size: 12px;
  line-height: 1;
  transition: transform var(--transition-slow);
}

/* ===================================================================
   Content Area
   =================================================================== */

.facet-overlay__content {
  padding: 16px 0;
}

.facet-overlay[data-visible="false"] .facet-overlay__content {
  display: none;
}

/* Hide content during initial load to prevent jumping */
.facet-overlay--loading .facet-overlay__content {
  display: none;
}

/* ===================================================================
   Form
   =================================================================== */

.facet-overlay__form {
  /* No specific styles needed - children handle layout */
}

.facet-overlay__form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

@media (min-width: 768px) {
  .facet-overlay__form-row {
    grid-template-columns: repeat(5, 1fr);
  }

  .facet-overlay__form-row:last-child {
    grid-template-columns: 1fr 1fr 2fr;
  }
}

/* ===================================================================
   Form Fields
   =================================================================== */

.facet-overlay__field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.facet-overlay__label {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-bg-white);
}

.facet-overlay__label-hint {
  font-weight: 400;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  margin-left: 4px;
}

/* Wide field for sector dropdown with grouped options */
.facet-overlay__field--wide {
  grid-column: span 2;
}

@media (max-width: 768px) {
  .facet-overlay__field--wide {
    grid-column: span 1;
  }
}

.facet-overlay__select {
  padding: 8px 12px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  background: var(--color-bg-white);
  color: var(--color-text-primary); /* GOV.UK text black */
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  transition: border-color var(--transition-slow);
}

.facet-overlay__select:hover {
  border-color: rgba(255, 255, 255, 0.5);
}

.facet-overlay__select:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 0;
  border-color: var(--color-text-primary);
}

/* ===================================================================
   Actions
   =================================================================== */

.facet-overlay__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
  justify-content: center;
}

.facet-overlay__button {
  padding: 8px 16px;
  border: 2px solid var(--color-bg-white);
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-slow);
  font-family: inherit;
  white-space: nowrap;
}

.facet-overlay__button--secondary {
  background: transparent;
  color: var(--color-bg-white);
}

.facet-overlay__button--secondary:hover {
  background: rgba(255, 255, 255, 0.2);
}

.facet-overlay__button--secondary:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* ===================================================================
   Status Messages
   =================================================================== */

.facet-overlay__status {
  font-size: 13px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 3px;
  min-height: 24px;
}

.facet-overlay__status--loading {
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-bg-white);
}

.facet-overlay__status--success {
  background: var(--color-success); /* GOV.UK green */
  color: var(--color-bg-white);
}

.facet-overlay__status--error {
  background: var(--color-error); /* GOV.UK red */
  color: var(--color-bg-white);
}

/* ===================================================================
   Help Text
   =================================================================== */

.facet-overlay__help {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 12px;
  margin-top: 8px;
}

.facet-overlay__help-text {
  font-size: 13px;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}

.facet-overlay__help-text strong {
  font-weight: 700;
  color: var(--color-bg-white);
}

/* ===================================================================
   Responsive Adjustments
   =================================================================== */

@media (max-width: 768px) {
  .facet-overlay__header {
    padding: 8px 0;
    flex-wrap: wrap;
  }

  .facet-overlay__header-left {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    width: 100%;
  }

  .facet-overlay[data-visible="false"] .facet-overlay__header-left {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .facet-overlay__title {
    font-size: 14px;
  }

  .facet-overlay__icon {
    font-size: 18px;
  }

  .facet-overlay__summary {
    font-size: 12px;
    padding: 3px 8px;
    flex-wrap: wrap;
    white-space: normal;
    gap: 4px;
  }

  .facet-overlay__toggle {
    padding: 4px 8px;
    font-size: 13px;
  }

  .facet-overlay__content {
    padding: 12px 0;
  }

  .facet-overlay__form-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .facet-overlay__actions {
    flex-direction: row;
    align-items: center;
  }

  .facet-overlay__status {
    font-size: 12px;
  }
}

/* ===================================================================
   Print Styles
   =================================================================== */

@media print {
  .facet-overlay {
    display: none !important;
  }
}

/* ===================================================================
   Accessibility Enhancements
   =================================================================== */

/* High contrast mode support */
@media (prefers-contrast: high) {
  .facet-overlay {
    border-bottom: 3px solid var(--color-text-primary);
  }

  .facet-overlay__select {
    border-width: 3px;
  }

  .facet-overlay__button {
    border-width: 3px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .facet-overlay,
  .facet-overlay__toggle,
  .facet-overlay__toggle-icon,
  .facet-overlay__select,
  .facet-overlay__button {
    transition: none;
  }
}

/* ===================================================================
   Companies House Lookup
   =================================================================== */

.facet-overlay__ch-lookup {
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding-bottom: 16px;
  margin-bottom: 16px;
}

.facet-overlay__input-group {
  display: flex;
  gap: 8px;
}

.facet-overlay__input {
  padding: 8px 12px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  background: var(--color-bg-white);
  color: var(--color-text-primary);
  font-size: 14px;
  font-family: inherit;
  flex: 1;
  min-width: 120px;
  max-width: 200px;
  letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
}

.facet-overlay__input:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 0;
  border-color: var(--color-text-primary);
}

.facet-overlay__input::placeholder {
  color: #999;
  letter-spacing: normal;
}

.facet-overlay__button--primary {
  background: var(--color-bg-white);
  color: var(--color-gov-blue);
  border-color: var(--color-bg-white);
}

.facet-overlay__button--primary:hover {
  background: rgba(255, 255, 255, 0.9);
}

.facet-overlay__button--primary:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.facet-overlay__button--primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.facet-overlay__ch-result {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  border-left: 3px solid var(--color-success);
}

.facet-overlay__ch-result--error {
  border-left-color: var(--color-error);
}

.facet-overlay__ch-company-name {
  font-weight: 700;
  font-size: 14px;
}

.facet-overlay__ch-company-detail {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
}

.facet-overlay__ch-alerts {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.facet-overlay__ch-alert {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 3px;
  font-weight: 600;
}

.facet-overlay__ch-alert--warning {
  background: #f47738;
  color: white;
}

.facet-overlay__ch-alert--info {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.facet-overlay__ch-alert--important {
  background: var(--color-error);
  color: white;
}

/* ===================================================================
   Content Graph Section
   =================================================================== */

.facet-overlay__graph-section {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 16px;
  margin-top: 16px;
}

.facet-overlay__section-title {
  margin: 0 0 12px 0;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-bg-white);
}

.facet-overlay__section-icon {
  font-size: 14px;
  opacity: 0.8;
}

.facet-overlay__graph-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 12px;
}

.facet-overlay__stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.facet-overlay__stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-bg-white);
  line-height: 1;
}

.facet-overlay__stat-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.facet-overlay__details {
  margin: 0;
}

.facet-overlay__details summary {
  cursor: pointer;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
  padding: 6px 0;
  border-bottom: 1px dotted rgba(255, 255, 255, 0.3);
  display: inline-block;
}

.facet-overlay__details summary:hover {
  color: var(--color-bg-white);
  text-decoration: underline;
}

.facet-overlay__details summary:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.facet-overlay__snippet-list {
  list-style: none;
  margin: 8px 0 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.facet-overlay__snippet-list li {
  background: rgba(255, 255, 255, 0.15);
  padding: 4px 10px;
  border-radius: 3px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.95);
}