/* =========================================================
   Radar Bisnero Design System — Components
   Capa 2: bloques reutilizables (BEM)
   Depends on: tokens.css
   ========================================================= */

/* =========================================================
   1. App Shell
   ========================================================= */

.app-bar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg-soft) 95%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3) 0;
}

.app-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.app-bar__back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0 var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-bg-card);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.app-bar__back:hover {
  background: var(--color-accent);
  color: var(--color-on-accent);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.app-bar__back:active {
  transform: scale(0.95);
}

.app-bar__back[hidden] {
  display: none;
}

.app-bar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.app-bar__logo {
  width: 1.75rem;
  height: 1.75rem;
  flex-shrink: 0;
}

.app-bar__title {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  color: var(--color-heading);
}

.app-bar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.app-bar__user {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* =========================================================
   2. Buttons
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  border: none;
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 2.5rem;
}

.btn:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-on-accent);
  box-shadow: 0 1px 4px rgba(194, 122, 44, 0.2);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 2px 8px rgba(194, 122, 44, 0.25);
}

.btn--primary:active {
  transform: scale(0.97);
}

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

.btn--ghost {
  background: transparent;
  color: var(--color-text-soft);
  border: 1px solid var(--color-border);
}

.btn--ghost:hover {
  background: var(--color-bg-soft);
  color: var(--color-heading);
}

.btn--ghost:active {
  transform: scale(0.97);
}

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

.btn--sm {
  padding: 0.375rem 0.75rem;
  font-size: var(--text-xs);
  min-height: 2.75rem;
}

/* =========================================================
   3. Badges (signal type indicators)
   ========================================================= */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.5;
  white-space: nowrap;
}

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

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

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

.badge--muted {
  background: var(--color-bg-subtle);
  color: var(--color-slate-700);
}

/* =========================================================
   4. Cards (opportunity / trend)
   ========================================================= */

.card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

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

/* Stretched link: card__link covers the entire card */
.card__link::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
}

/* Interactive elements float above the stretched link */
.card__action-btn,
.card .margin-calc__input,
.card .badge,
.card .filters__select {
  position: relative;
  z-index: 1;
}

.card--viable {
  border-left: 3px solid var(--signal-viable-border);
}

.card--highlight {
  border-left: 3px solid var(--signal-highlight-border);
}

.card--trend {
  border-left: 3px solid var(--signal-trend-border);
}

.card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.card__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-heading);
  line-height: var(--line-snug);
}

.card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

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

.card__meta-label {
  color: var(--color-text-muted);
}

.card__meta-value {
  font-weight: 600;
  color: var(--color-text);
  font-family: var(--font-mono);
}

.card__meta-value--price {
  font-size: var(--text-sm);
  color: var(--color-green-800);
  font-weight: 700;
}

.card__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-bg-subtle);
}

.card__link {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-accent);
  transition: color var(--transition-fast);
  position: relative;
}

.card__link:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.card__caption {
  font-size: var(--text-sm);
  line-height: var(--line-relaxed);
  color: var(--color-text);
  margin: 0;
}

.card__hashtags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.chip {
  display: inline-block;
  font-size: var(--text-xs);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-bg-subtle);
  color: var(--color-text-muted);
}

/* Card with link: cursor pointer on entire card */
.card:has(.card__link):hover {
  border-color: var(--color-accent);
  cursor: pointer;
}

.card:has(.card__link):active {
  transform: scale(0.995);
}

/* =========================================================
   5. Section (content block)
   ========================================================= */

.section {
  padding: var(--space-6) 0;
}

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

.section__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.section__count {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-subtle);
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
}

/* =========================================================
   6. Card Grid
   ========================================================= */

.card-grid {
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .card-grid { grid-template-columns: repeat(3, 1fr); }
  .card-grid--wide { grid-template-columns: repeat(4, 1fr); }
}

/* =========================================================
   7. Empty State
   ========================================================= */

.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: var(--color-text-muted);
}

.empty-state__icon {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-2);
  opacity: 0.4;
}

.empty-state__text {
  font-size: var(--text-sm);
}

/* =========================================================
   8. Status Bar (refresh feedback)
   ========================================================= */

.status-bar {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  text-align: center;
  transition: opacity var(--transition-fast);
}

.status-bar--loading {
  background: var(--color-blue-100);
  color: var(--color-blue-800);
}

.status-bar--success {
  background: var(--color-green-100);
  color: var(--color-green-800);
}

.status-bar--error {
  background: var(--color-red-100);
  color: var(--color-red-500);
}

.status-bar--hidden {
  opacity: 0;
  pointer-events: none;
}

/* =========================================================
   9. Login Form
   ========================================================= */

.login {
  max-width: 24rem;
  margin: var(--space-10) auto;
  padding: var(--space-6);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.login__title {
  text-align: center;
  margin-bottom: var(--space-5);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-group__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-soft);
  margin-bottom: var(--space-1);
}

.form-group__input {
  width: 100%;
  padding: 0.625rem var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg-soft);
  transition: border-color var(--transition-fast);
}

.form-group__input:focus-visible {
  border-color: var(--color-accent);
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  box-shadow: var(--focus-shadow);
}

.form-group__error {
  font-size: var(--text-xs);
  color: var(--color-red-500);
  margin-top: var(--space-1);
}

/* =========================================================
   10. Stats Row (summary metrics)
   ========================================================= */

.stats-row {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 5rem;
}

.stat__value {
  font-size: var(--text-2xl);
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-heading);
  line-height: 1;
}

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

/* =========================================================
   11. Freshness indicator
   ========================================================= */

.freshness {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.freshness--recent {
  color: var(--color-green-800);
}

.freshness--stale {
  color: var(--color-red-500);
}

/* =========================================================
   12. Margin Calculator (inline on cards)
   ========================================================= */

.margin-calc {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-bg-subtle);
}

.margin-calc__input {
  width: 6rem;
  padding: 0.375rem var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  color: var(--color-text);
  background: var(--color-bg-soft);
  transition: border-color var(--transition-fast);
}

.margin-calc__input:focus-visible {
  border-color: var(--color-accent);
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  box-shadow: var(--focus-shadow);
}

.margin-calc__input::placeholder {
  color: var(--color-text-muted);
  font-style: italic;
}

.margin-calc__result {
  font-size: var(--text-sm);
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 0.25rem var(--space-2);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.margin-calc__result--high {
  color: var(--color-green-800);
  background: var(--color-green-100);
}

.margin-calc__result--mid {
  color: var(--color-amber-700);
  background: var(--color-amber-100);
}

.margin-calc__result--low {
  color: var(--color-red-500);
  background: var(--color-red-100);
}

.margin-calc__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* =========================================================
   13. Competition Semaphore
   ========================================================= */

.competition {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
}

.competition__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.competition--low .competition__dot { background: var(--color-green-500); }
.competition--mid .competition__dot { background: var(--color-amber-500); }
.competition--high .competition__dot { background: var(--color-red-500); }

.competition--low { color: var(--color-green-800); }
.competition--mid { color: var(--color-amber-700); }
.competition--high { color: var(--color-red-500); }

/* =========================================================
   14. Cross badge (trend + price)
   ========================================================= */

.badge--cross {
  background: linear-gradient(135deg, var(--signal-trend-bg), var(--signal-viable-bg));
  color: var(--color-green-800);
  border: 1px solid var(--signal-viable-border);
}

/* =========================================================
   15. Action button on card
   ========================================================= */

.card__action-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.card__action-btn:hover {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.card__action-btn:active {
  transform: scale(0.97);
}

.card__action-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* =========================================================
   16. Filters Bar
   ========================================================= */

.filters {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
  padding: var(--space-3) 0;
}

.filters__search {
  flex: 1;
  min-width: 12rem;
  padding: 0.5rem var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg-card);
  transition: border-color var(--transition-fast);
}

.filters__search:focus-visible {
  border-color: var(--color-accent);
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  box-shadow: var(--focus-shadow);
}

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

.filters__select {
  padding: 0.5rem var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg-card);
  cursor: pointer;
  min-width: 10rem;
}

.filters__select:focus-visible {
  border-color: var(--color-accent);
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

/* =========================================================
   17. Nav Tabs
   ========================================================= */

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

.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  min-height: 2.75rem;
}

.nav-tab:hover {
  background: var(--color-bg-subtle);
  color: var(--color-text);
}

.nav-tab:active {
  transform: scale(0.97);
}

.nav-tab:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.nav-tab--active {
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: 600;
}

.nav-tab--active:hover {
  background: var(--color-accent-hover);
  color: var(--color-on-accent);
}

.nav-tab__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 var(--space-1);
  border-radius: var(--radius-full);
  background: var(--color-red-500);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  font-family: var(--font-mono);
  line-height: 1;
}

/* =========================================================
   18. Source Chips
   ========================================================= */

.source-chips {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  padding: var(--space-3) 0 0;
}

.source-chip {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg-card);
  color: var(--color-text-soft);
  font-size: var(--text-xs);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 2rem;
}

.source-chip:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.source-chip:active {
  transform: scale(0.97);
}

.source-chip:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.source-chip--active {
  background: var(--color-accent);
  color: var(--color-on-accent);
  border-color: var(--color-accent);
  font-weight: 600;
}

.source-chip--active:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

/* =========================================================
   19. Module Grid (home hub)
   ========================================================= */

.module-grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .module-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .module-grid { grid-template-columns: repeat(3, 1fr); }
}

.module-card {
  display: block;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.module-card--active {
  cursor: pointer;
  border-left: 3px solid var(--color-accent);
}

.module-card--active:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.module-card--active:active {
  transform: scale(0.995);
}

.module-card--disabled {
  opacity: 0.45;
}

.module-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.module-card__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-heading);
  line-height: var(--line-tight);
}

.module-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-soft);
  line-height: var(--line-normal);
  margin: 0;
}

/* =========================================================
   20. Opportunity Table
   ========================================================= */

.opp-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

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

.opp-table th {
  position: sticky;
  top: 0;
  background: var(--color-bg-subtle);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.opp-table td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: middle;
}

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

.opp-table tr:hover td {
  background: var(--color-bg-soft);
}

.opp-table__producto {
  font-weight: 600;
  color: var(--color-heading);
}

.opp-table__precio {
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-green-800);
  white-space: nowrap;
}

.opp-table__link {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-accent);
  white-space: nowrap;
}

.opp-table__link:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.opp-table__sortable {
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.opp-table__sortable:hover {
  color: var(--color-text);
}

.opp-table__sorted {
  color: var(--color-text);
}

.rating {
  color: #e6a817;
  letter-spacing: -1px;
  white-space: nowrap;
}

.text-sm {
  font-size: 0.75rem;
}

/* Mobile: hide low-priority columns */
@media (max-width: 639px) {
  .opp-table__hide-mobile {
    display: none;
  }

  .opp-table td,
  .opp-table th {
    padding: var(--space-2);
  }
}

/* ── View shell ── */

.view[hidden] {
  display: none !important;
}

/* =========================================================
   18. Responsive — Mobile (<=639px)
   ========================================================= */

@media (max-width: 639px) {
  .app-bar__inner {
    flex-wrap: wrap;
  }

  .nav-tabs {
    order: 10;
    width: 100%;
    justify-content: center;
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border-light);
    margin-top: var(--space-2);
  }

  .nav-tab {
    flex: 1;
    justify-content: center;
    padding: var(--space-2);
    font-size: var(--text-xs);
  }

  .stats-row {
    gap: var(--space-3);
  }

  .stat__value {
    font-size: var(--text-xl);
  }

  .card {
    padding: var(--space-3);
  }

  .section__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}

/* =========================================================
   Word Cloud
   ========================================================= */

.wordcloud {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-6) var(--space-4);
  min-height: 200px;
  line-height: 1.1;
}

.wordcloud__word {
  display: inline-block;
  font-weight: 600;
  cursor: default;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.wordcloud__word:hover {
  transform: scale(1.15);
  opacity: 1 !important;
}