/* ============================================================
   COMPONENTS — All UI Component Styles
   Sponsorship Intelligence Tool
   ============================================================ */

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

/* Base button reset + shared styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  white-space: nowrap;
  -webkit-user-select: none;
  user-select: none;
}

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

/* Primary — filled accent blue */
.btn--primary {
  background: var(--accent-primary);
  color: var(--text-inverse);
  padding: 0 var(--space-6);
  height: 44px;
  font-size: 0.9375rem;
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(26, 86, 232, 0.3);
}

.btn--primary:hover {
  background: var(--accent-secondary);
  /* Slight rightward shift on hover — signals forward action */
  transform: translateX(1px);
}

/* Click feedback: scale down slightly */
.btn--primary:active {
  transform: scale(0.97);
  box-shadow: none;
}

/* Arrow icon inside analyze button */
.btn--primary .btn__arrow {
  transition: transform var(--transition-fast);
  font-size: 1rem;
}

.btn--primary:hover .btn__arrow {
  transform: translateX(3px);   /* Arrow shifts right on hover */
}

/* Ghost — no fill, subtle border */
.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0 var(--space-4);
  height: 36px;
}

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

/* Icon-only button (theme toggle, copy icon) */
.btn--icon {
  background: transparent;
  color: var(--text-muted);
  padding: var(--space-2);
  height: 32px;
  width: 32px;
  border-radius: var(--radius-md);
}

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

/* Full-width variant */
.btn--full {
  width: 100%;
}

/* ============================================================
   FORM COMPONENTS
   ============================================================ */

/* Form group: label + input stacked */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-group:last-of-type {
  margin-bottom: 0;
}

/* Label */
.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* Optional tag alongside label */
.form-label__optional {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: var(--space-1);
}

/* Input field */
.form-input {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-4);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-base);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

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

.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: var(--shadow-focus);
}

/* Error state */
.form-input--error {
  border-color: var(--score-low);
}

.form-input--error:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.18);
}

/* Inline error message below input */
.form-error {
  font-size: 0.8125rem;
  color: var(--score-low);
  display: none;
}

.form-error.form-error--visible {
  display: block;
}

/* Textarea variant */
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  min-height: 80px;
  resize: vertical;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  outline: none;
  line-height: 1.5;
}

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

.form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: var(--shadow-focus);
}

/* Optional context accordion toggle */
.context-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--text-muted);
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  background: none;
  border: none;
  padding: var(--space-3) 0;
  font-family: var(--font-sans);
  transition: color var(--transition-fast);
  width: 100%;
  text-align: left;
}

.context-toggle:hover {
  color: var(--text-secondary);
}

.context-toggle__icon {
  font-size: 0.7rem;
  transition: transform var(--transition-base);
}

.context-toggle.context-toggle--open .context-toggle__icon {
  transform: rotate(90deg);
}

/* Context accordion body */
.context-accordion {
  display: none;               /* Collapsed by default */
  padding-top: var(--space-1);
}

.context-accordion.context-accordion--open {
  display: block;
}

/* ============================================================
   CARD
   ============================================================ */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base);
}

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

.card--elevated {
  box-shadow: var(--shadow-elevated);
}

/* ============================================================
   LOADING STATE
   ============================================================ */

.loading-state {
  display: none;               /* Shown by JS when analysis starts */
  text-align: center;
  padding: var(--space-12) 0;
}

.loading-state.loading-state--visible {
  display: block;
}

/* Pulsing spinner ring */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  margin: 0 auto var(--space-5);
  /* Spin animation defined in animations.css */
  animation: spin 0.8s linear infinite;
}

.loading-status {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
  /* Fade animation on message changes defined in animations.css */
}

/* ============================================================
   FIT SCORE DASHBOARD
   ============================================================ */

.score-dashboard {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-6);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.score-dashboard__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  gap: var(--space-4);
}

.score-dashboard__title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}

.score-dashboard__pair {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Composite score badge */
.composite-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 88px;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  text-align: center;
  flex-shrink: 0;
}

.composite-badge--high {
  background: var(--score-high-bg);
  color: var(--composite-high-text);
}

.composite-badge--mid {
  background: var(--score-mid-bg);
  color: var(--composite-mid-text);
}

.composite-badge--low {
  background: var(--score-low-bg);
  color: var(--composite-low-text);
}

.composite-badge__value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}

.composite-badge__label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: var(--space-1);
  opacity: 0.75;
}

/* Dimension cards grid */
.dimension-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);  /* 5 equal columns */
  gap: var(--space-4);
}

/* Individual dimension card */
.dimension-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.dimension-card__label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: capitalize;
  /* Wrap long dimension names onto two lines */
  word-break: break-word;
  hyphens: auto;
}

.dimension-card__score {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}

/* Color the score number by tier */
.dimension-card__score--high { color: var(--score-high); }
.dimension-card__score--mid  { color: var(--score-mid);  }
.dimension-card__score__low  { color: var(--score-low);  }

/* Score bar track */
.score-bar-track {
  height: 6px;
  background: var(--border-color);
  border-radius: var(--radius-full);
  overflow: hidden;
}

/* Score bar fill — width set by JS via --score-width custom property */
.score-bar-fill {
  height: 100%;
  width: 0;                    /* Start at 0 — animated in */
  border-radius: var(--radius-full);
  /* Animation defined in animations.css */
}

.score-bar-fill--high { background: var(--score-high); }
.score-bar-fill--mid  { background: var(--score-mid);  }
.score-bar-fill--low  { background: var(--score-low);  }

.dimension-card__verdict {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Placeholder skeleton before score arrives */
.dimension-card--skeleton .dimension-card__score,
.dimension-card--skeleton .dimension-card__verdict {
  background: var(--border-color);
  border-radius: var(--radius-sm);
  color: transparent;
  animation: pulse 1.5s ease infinite;
}

/* ============================================================
   ANALYSIS SUMMARY
   ============================================================ */

.analysis-summary {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-6);
  position: relative;
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.analysis-summary__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

/* Copy icon button — inline top-right of summary */
.copy-summary-btn {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.8125rem;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  font-family: var(--font-sans);
}

.copy-summary-btn:hover {
  color: var(--text-primary);
  background: var(--bg-primary);
}

/* Analysis paragraphs */
.analysis-summary__body p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.analysis-summary__body p:last-child {
  margin-bottom: 0;
}

/* Streaming text cursor */
.analysis-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--accent-primary);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

/* ============================================================
   COMPARABLES TABLE
   ============================================================ */

.comparables-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.comparables-table-header {
  padding: var(--space-5) var(--space-6) var(--space-4);
  border-bottom: 1px solid var(--border-color);
}

/* Scrollable table container */
.comparables-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparables-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

/* Table header */
.comparables-table thead tr {
  border-bottom: 1px solid var(--border-color);
}

.comparables-table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
  cursor: pointer;           /* All columns sortable */
  user-select: none;
  -webkit-user-select: none;
  transition: color var(--transition-fast);
}

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

/* Sort indicator arrow */
.th-sort-icon {
  display: inline-block;
  margin-left: var(--space-1);
  opacity: 0.3;
  font-size: 0.65rem;
  transition: opacity var(--transition-fast);
}

.comparables-table th.th--sorted .th-sort-icon {
  opacity: 1;
}

.comparables-table th.th--sorted {
  color: var(--accent-primary);
}

/* Table rows */
.comparables-table tbody tr {
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;             /* Click to expand inline note */
  transition: background-color var(--transition-fast);
}

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

.comparables-table tbody tr:hover {
  background: var(--bg-primary);
}

.comparables-table td {
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  vertical-align: top;
}

/* Similarity score column — colored by tier */
.td-similarity {
  font-weight: 600;
  white-space: nowrap;
}

.td-similarity--high { color: var(--score-high); }
.td-similarity--mid  { color: var(--score-mid);  }
.td-similarity--low  { color: var(--score-low);  }

/* Expand/collapse icon cell */
.td-expand {
  width: 32px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.65rem;
  transition: transform var(--transition-base);
}

.tr--expanded .td-expand {
  transform: rotate(180deg);
}

/* Expanded note row */
.tr-note {
  display: none;               /* Hidden until row is expanded */
}

.tr--expanded + .tr-note {
  display: table-row;
}

.tr-note td {
  padding: 0 var(--space-4) var(--space-3);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-style: italic;
  line-height: 1.6;
  /* Animate height from 0 — done via max-height in animations.css */
}

/* Table skeleton loading rows */
.tr-skeleton td {
  padding: var(--space-3) var(--space-4);
}

.skeleton-text {
  display: block;
  height: 14px;
  background: var(--border-color);
  border-radius: var(--radius-sm);
  animation: pulse 1.5s ease infinite;
}

.skeleton-text--short { width: 60%; }
.skeleton-text--medium { width: 80%; }

/* ============================================================
   ERROR CARD
   ============================================================ */

.error-card {
  display: none;               /* Shown by JS on API error */
  background: var(--score-low-bg);
  border: 1px solid var(--score-low);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  margin-top: var(--space-8);
}

.error-card.error-card--visible {
  display: block;
}

.error-card__icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-3);
}

.error-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--composite-low-text);
  margin-bottom: var(--space-2);
}

.error-card__message {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-5);
}

/* ============================================================
   THEME TOGGLE
   ============================================================ */

.theme-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-secondary);
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast);
  font-size: 0.9rem;
}

.theme-toggle:hover {
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* Icon switching: show sun in dark mode, moon in light mode */
.icon-sun  { display: none;  }
.icon-moon { display: block; }

[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none;  }

/* ============================================================
   EXPORT BAR BUTTONS
   ============================================================ */

/* Export bar uses ghost variants + a special icon pattern */
.export-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 500;
  font-family: var(--font-sans);
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0 var(--space-4);
  height: 36px;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast);
  white-space: nowrap;
}

.export-btn:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

/* Copy-confirmed state: icon changes to checkmark, no toast */
.export-btn.export-btn--copied {
  color: var(--score-high);
  border-color: var(--score-high);
}

/* ============================================================
   METHODOLOGY DIMENSION ITEM
   ============================================================ */

.methodology-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.methodology-item__name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
  text-transform: capitalize;
}

.methodology-item__desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================================
   MOBILE: tablet/phone overrides
   ============================================================ */

@media (max-width: 900px) {
  /* Stack 5 dimension cards into a 2-3 layout */
  .dimension-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .dimension-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .score-dashboard__header {
    flex-direction: column;
  }

  .composite-badge {
    width: 100%;
    flex-direction: row;
    gap: var(--space-3);
    padding: var(--space-3);
  }

  .composite-badge__value {
    font-size: 1.5rem;
  }

  .export-btn span {
    display: none;              /* Hide text labels on small screens, show only icons */
  }

  .export-btn {
    width: 36px;
    padding: 0;
    justify-content: center;
  }
}