/* ═══════════════════════════════════════════════════════════════
   COMPONENTS — Canonical component library
   RobotBets Design System v2.0
   All values from design-tokens.css — no hardcoded colors/sizes
   ═══════════════════════════════════════════════════════════════ */


/* ── CARDS ─────────────────────────────────────────────────── */

.rb-card {
  background: var(--rb-bg-surface);
  border: 1px solid var(--rb-border);
  border-radius: 0;
  box-shadow: none;
  transition: transform var(--duration-base) var(--ease-default),
              box-shadow var(--duration-base) var(--ease-default);
}

@media (prefers-reduced-motion: no-preference) {
  .rb-card:hover {
    transform: translateY(-2px);
    box-shadow: none;
  }
}

.rb-card--elevated {
  background: var(--rb-bg-elevated);
  box-shadow: none;
}

.rb-card--glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-color: var(--glass-border);
}

.rb-card--no-hover:hover {
  transform: none;
  box-shadow: none;
}

.rb-card__body {
  padding: var(--space-5);
}

.rb-card__header {
  padding: var(--space-5);
  border-bottom: 1px solid var(--rb-border);
}

.rb-card__footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--rb-border);
}


/* ── STAT CARD ─────────────────────────────────────────────── */

.rb-stat-card {
  background: var(--rb-bg-surface);
  border: 1px solid var(--rb-border);
  border-radius: 0;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: transform var(--duration-base) var(--ease-default),
              box-shadow var(--duration-base) var(--ease-default);
}

@media (prefers-reduced-motion: no-preference) {
  .rb-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: none;
  }
}

.rb-stat-card__label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--rb-text-secondary);
}

.rb-stat-card__value {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--rb-text-primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

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

.rb-stat-card__trend--up {
  color: var(--rb-success);
}

.rb-stat-card__trend--down {
  color: var(--rb-danger);
}

.rb-stat-card__trend--neutral {
  color: var(--rb-text-tertiary);
}

.rb-stat-card--brand {
  border-color: var(--rb-border-brand);
  background: var(--rb-bg-surface);
}

.rb-stat-card--success {
  border-color: rgba(16, 185, 129, 0.25);
}

.rb-stat-card--danger {
  border-color: rgba(239, 68, 68, 0.25);
}


/* ── BUTTONS ───────────────────────────────────────────────── */

.rb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 40px;
  padding: var(--space-2) var(--space-5);
  border: none;
  border-radius: 0;
  background: var(--rb-brand);
  color: var(--rb-text-inverse);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: var(--leading-tight);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--duration-fast) var(--ease-default),
              transform var(--duration-fast) var(--ease-default);
}

.rb-btn:hover {
  background: var(--rb-brand-hover);
  color: var(--rb-text-inverse);
  text-decoration: none;
}

.rb-btn:active {
  transform: scale(0.98);
}

.rb-btn:focus-visible {
  outline: 2px solid var(--rb-brand);
  outline-offset: 2px;
}

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

/* Secondary */
.rb-btn--secondary {
  background: var(--rb-bg-elevated);
  border: 1px solid var(--rb-border);
  color: var(--rb-text-primary);
}

.rb-btn--secondary:hover {
  background: var(--rb-bg-overlay);
  border-color: var(--rb-border-strong);
  color: var(--rb-text-primary);
}

/* Outline */
.rb-btn--outline {
  background: transparent;
  border: 1px solid var(--rb-border-brand);
  color: var(--rb-brand);
}

.rb-btn--outline:hover {
  background: var(--rb-brand-subtle);
  color: var(--rb-brand);
}

/* Ghost */
.rb-btn--ghost {
  background: transparent;
  border: none;
  color: var(--rb-text-secondary);
}

.rb-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--rb-text-primary);
}

/* Danger */
.rb-btn--danger {
  background: var(--rb-danger);
  color: #fff;
}

.rb-btn--danger:hover {
  background: #dc2626;
  color: #fff;
}

/* Size variants */
.rb-btn--sm {
  min-height: 32px;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  border-radius: 0;
}

.rb-btn--lg {
  min-height: 48px;
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
  border-radius: 0;
}

/* Full-width */
.rb-btn--block {
  width: 100%;
}


/* ── BADGES ────────────────────────────────────────────────── */

.rb-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-2);
  border-radius: 0;
  font-size: var(--text-2xs);
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.08);
  color: var(--rb-text-secondary);
}

.rb-badge--brand {
  background: var(--rb-brand-subtle);
  color: var(--rb-brand);
}

.rb-badge--success {
  background: var(--rb-success-subtle);
  color: var(--rb-success);
}

.rb-badge--danger {
  background: var(--rb-danger-subtle);
  color: var(--rb-danger);
}

.rb-badge--warning {
  background: var(--rb-warning-subtle);
  color: var(--rb-warning);
}

.rb-badge--info {
  background: var(--rb-info-subtle);
  color: var(--rb-info);
}

/* Larger badge variant for prominent labels */
.rb-badge--lg {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
}

/* Pill with icon (status indicators) */
.rb-badge__icon {
  display: inline-flex;
  font-size: 0.8em;
  line-height: 1;
}


/* ── FORM: SELECT ──────────────────────────────────────────── */

.rb-select {
  appearance: none;
  -webkit-appearance: none;
  display: block;
  width: 100%;
  min-height: 40px;
  padding: var(--space-2) var(--space-10) var(--space-2) var(--space-3);
  background: var(--rb-bg-elevated);
  border: 1px solid var(--rb-border);
  border-radius: 0;
  color: var(--rb-text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-default);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b949e' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
}

.rb-select:hover {
  border-color: var(--rb-border-strong);
}

.rb-select:focus {
  outline: none;
  border-color: var(--rb-brand);
  box-shadow: none;
}

.rb-select option {
  background: var(--rb-bg-elevated);
  color: var(--rb-text-primary);
}


/* ── FORM: INPUT ───────────────────────────────────────────── */

.rb-input {
  display: block;
  width: 100%;
  min-height: 40px;
  padding: var(--space-2) var(--space-3);
  background: var(--rb-bg-elevated);
  border: 1px solid var(--rb-border);
  border-radius: 0;
  color: var(--rb-text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  transition: border-color var(--duration-fast) var(--ease-default),
              box-shadow var(--duration-fast) var(--ease-default);
}

.rb-input::placeholder {
  color: var(--rb-text-tertiary);
}

.rb-input:hover {
  border-color: var(--rb-border-strong);
}

.rb-input:focus {
  outline: none;
  border-color: var(--rb-brand);
  box-shadow: none;
}

.rb-input--error {
  border-color: var(--rb-danger);
}

.rb-input--error:focus {
  box-shadow: none;
}

/* Label */
.rb-label {
  display: block;
  margin-bottom: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--rb-text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* Form group wrapper */
.rb-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.rb-form-error {
  font-size: var(--text-xs);
  color: var(--rb-danger);
}


/* ── TABLE ─────────────────────────────────────────────────── */

.rb-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: var(--text-sm);
}

.rb-table__head {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.rb-table__head th {
  padding: var(--space-3) var(--space-4);
  background: var(--rb-bg-elevated);
  border-bottom: 1px solid var(--rb-border-strong);
  color: var(--rb-text-secondary);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  text-align: left;
  white-space: nowrap;
}

.rb-table__head th:first-child {
  border-radius: 0 0 0 0;
}

.rb-table__head th:last-child {
  border-radius: 0 var(--radius-sm) 0 0;
}

.rb-table__row {
  transition: background-color var(--duration-fast) var(--ease-default);
}

.rb-table__row:hover {
  background: var(--rb-bg-elevated);
}

.rb-table__row td,
.rb-table__cell {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--rb-border-muted);
  color: var(--rb-text-primary);
  vertical-align: middle;
}

.rb-table__row:last-child td {
  border-bottom: none;
}

/* Sortable header */
.rb-table__head th[data-sort] {
  cursor: pointer;
  user-select: none;
}

.rb-table__head th[data-sort]:hover {
  color: var(--rb-brand);
}

.rb-table__head th.sorted-asc::after {
  content: " \25B2";
  font-size: 0.65em;
}

.rb-table__head th.sorted-desc::after {
  content: " \25BC";
  font-size: 0.65em;
}


/* ── FILTER BAR ────────────────────────────────────────────── */

.rb-filter-bar {
  position: sticky;
  top: 60px;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 0;
  margin-bottom: var(--space-5);
}

@supports not (backdrop-filter: none) {
  .rb-filter-bar {
    background: var(--rb-bg-surface);
  }
}


/* ── PAGE HEADER ───────────────────────────────────────────── */

.rb-page-header {
  position: relative;
  padding: var(--space-8) var(--space-6);
  margin-bottom: var(--space-6);
  text-align: center;
  overflow: hidden;
}

.rb-page-header::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  height: 2px;
  background: var(--rb-bg-surface);
}

.rb-page-header__title {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--rb-text-primary);
  letter-spacing: var(--tracking-tight);
  margin: 0 0 var(--space-3);
}

.rb-page-header__subtitle {
  max-width: 600px;
  margin: 0 auto;
  color: var(--rb-text-secondary);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}


/* ── EMPTY STATE ───────────────────────────────────────────── */

.rb-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-6);
  text-align: center;
}

.rb-empty-state__icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
  opacity: 0.4;
}

.rb-empty-state__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--rb-text-primary);
  margin-bottom: var(--space-2);
}

.rb-empty-state__text {
  max-width: 400px;
  color: var(--rb-text-secondary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}


/* ── ERROR STATE ───────────────────────────────────────────── */

.rb-error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-10) var(--space-6);
  text-align: center;
}

.rb-error-state__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--rb-danger);
  margin-bottom: var(--space-2);
}

.rb-error-state__text {
  max-width: 400px;
  color: var(--rb-text-secondary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-5);
}


/* ── LOADING / SPINNER ─────────────────────────────────────── */

.rb-spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--rb-border-strong);
  border-top-color: var(--rb-brand);
  border-radius: 50%;
  animation: rb-spin 0.8s linear infinite;
}

.rb-spinner--sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.rb-spinner--lg {
  width: 40px;
  height: 40px;
  border-width: 4px;
}

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

.rb-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-16) var(--space-6);
}

.rb-loading__text {
  color: var(--rb-text-secondary);
  font-size: var(--text-sm);
}

/* Skeleton placeholder */
.rb-skeleton {
  background: linear-gradient(
    90deg,
    var(--rb-bg-elevated) 25%,
    var(--rb-bg-overlay) 50%,
    var(--rb-bg-elevated) 75%
  );
  background-size: 200% 100%;
  animation: rb-skeleton-pulse 1.5s ease-in-out infinite;
  border-radius: 0;
}

.rb-skeleton--text {
  height: 14px;
  width: 80%;
  margin-bottom: var(--space-2);
}

.rb-skeleton--heading {
  height: 24px;
  width: 60%;
  margin-bottom: var(--space-3);
}

.rb-skeleton--card {
  height: 120px;
  border-radius: 0;
}

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


/* ── PAGINATION ────────────────────────────────────────────── */

.rb-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-4) 0;
}

.rb-pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 var(--space-3);
  border: 1px solid var(--rb-border);
  border-radius: 0;
  background: transparent;
  color: var(--rb-text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-default);
}

.rb-pagination__btn:hover {
  background: var(--rb-bg-elevated);
  border-color: var(--rb-border-strong);
  color: var(--rb-text-primary);
}

.rb-pagination__btn--active {
  background: var(--rb-brand-subtle);
  border-color: var(--rb-border-brand);
  color: var(--rb-brand);
  font-weight: 600;
}

.rb-pagination__btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.rb-pagination__info {
  padding: 0 var(--space-3);
  color: var(--rb-text-tertiary);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
}


/* ── CONFIDENCE BAR ────────────────────────────────────────── */

.rb-confidence-bar {
  position: relative;
  width: 100%;
  height: 6px;
  background: var(--rb-bg-overlay);
  border-radius: 0;
  overflow: hidden;
}

.rb-confidence-bar__fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  border-radius: 0;
  transition: width var(--duration-slow) var(--ease-out);
}

/* Color by confidence level */
.rb-confidence-bar__fill--high {
  background: var(--rb-success);
}

.rb-confidence-bar__fill--medium {
  background: var(--rb-warning);
}

.rb-confidence-bar__fill--low {
  background: var(--rb-danger);
}

.rb-confidence-bar--lg {
  height: 10px;
}

.rb-confidence-bar__label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-1);
  font-size: var(--text-xs);
  color: var(--rb-text-secondary);
}

.rb-confidence-bar__value {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--rb-text-primary);
}


/* ── FEATURE LOCK (Upgrade notice) ─────────────────────────── */

.rb-feature-lock {
  max-width: 900px;
  margin: 0 auto var(--space-6);
  padding: var(--space-8) var(--space-6);
  background: var(--rb-bg-surface);
  border: 1px solid var(--rb-border);
  border-radius: 0;
  text-align: center;
}

.rb-feature-lock__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-4);
  margin-bottom: var(--space-4);
  border-radius: 0;
  background: var(--rb-brand-subtle);
  border: 1px solid var(--rb-border-brand);
  color: var(--rb-brand);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.rb-feature-lock__title {
  margin: 0 0 var(--space-3);
  color: var(--rb-text-primary);
  font-size: var(--text-2xl);
  font-weight: 800;
}

.rb-feature-lock__copy {
  max-width: 600px;
  margin: 0 auto var(--space-5);
  color: var(--rb-text-secondary);
  line-height: var(--leading-relaxed);
}

.rb-feature-lock__list {
  list-style: none;
  margin: 0 auto var(--space-6);
  padding: 0;
  max-width: 480px;
  display: grid;
  gap: var(--space-2);
}

.rb-feature-lock__list li {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--rb-border);
  border-radius: 0;
  background: var(--rb-bg-elevated);
  color: var(--rb-text-primary);
  font-size: var(--text-sm);
  text-align: left;
}

.rb-feature-lock__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}


/* ── PREDICTION ROW (History/Results grid) ─────────────────── */

.rb-prediction-row {
  display: grid;
  grid-template-columns: 40px 100px 1fr 140px 140px 100px 80px 100px;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--rb-border-muted);
  font-size: var(--text-sm);
  transition: background-color var(--duration-fast) var(--ease-default);
}

.rb-prediction-row:hover {
  background: var(--rb-bg-elevated);
}

.rb-prediction-row:last-child {
  border-bottom: none;
}

.rb-prediction-row__status {
  display: flex;
  align-items: center;
  justify-content: center;
}

.rb-prediction-row__date {
  color: var(--rb-text-tertiary);
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
}

.rb-prediction-row__match {
  font-weight: 600;
  color: var(--rb-text-primary);
}

.rb-prediction-row__league {
  color: var(--rb-text-secondary);
  font-size: var(--text-xs);
}

.rb-prediction-row__prediction {
  font-weight: 600;
}

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

.rb-prediction-row__odds {
  font-variant-numeric: tabular-nums;
  color: var(--rb-text-secondary);
}

.rb-prediction-row__result {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* Status modifiers */
.rb-prediction-row.correct .rb-prediction-row__status {
  color: var(--rb-success);
}

.rb-prediction-row.incorrect .rb-prediction-row__status {
  color: var(--rb-danger);
}

.rb-prediction-row.pending .rb-prediction-row__status {
  color: var(--rb-warning);
}

/* Prediction row grid header */
.rb-prediction-row--header {
  position: sticky;
  top: 0;
  z-index: var(--z-base);
  background: var(--rb-bg-elevated);
  border-bottom: 1px solid var(--rb-border-strong);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--rb-text-secondary);
}

.rb-prediction-row--header:hover {
  background: var(--rb-bg-elevated);
}

/* Mobile: stacked cards */
@media (max-width: 767px) {
  .rb-prediction-row {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    padding: var(--space-4);
    border: 1px solid var(--rb-border);
    border-radius: 0;
    margin-bottom: var(--space-2);
    border-bottom: 1px solid var(--rb-border);
  }

  .rb-prediction-row--header {
    display: none;
  }

  .rb-prediction-row__status {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
  }

  .rb-prediction-row {
    position: relative;
  }
}


/* ── SECTION DIVIDER ───────────────────────────────────────── */

.rb-divider {
  border: none;
  border-top: 1px solid var(--rb-border);
  margin: var(--space-6) 0;
}

.rb-divider--strong {
  border-color: var(--rb-border-strong);
}


/* ── TOOLTIP ───────────────────────────────────────────────── */

[data-rb-tooltip] {
  position: relative;
}

[data-rb-tooltip]::after {
  content: attr(data-rb-tooltip);
  position: absolute;
  bottom: calc(100% + var(--space-2));
  left: 50%;
  transform: translateX(-50%) scale(0.95);
  padding: var(--space-1) var(--space-2);
  background: var(--rb-bg-overlay);
  border: 1px solid var(--rb-border-strong);
  border-radius: 0;
  color: var(--rb-text-primary);
  font-size: var(--text-xs);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-default),
              transform var(--duration-fast) var(--ease-default);
  z-index: var(--z-toast);
}

[data-rb-tooltip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}


/* ── TAG / CHIP ────────────────────────────────────────────── */

.rb-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: 0;
  background: var(--rb-bg-overlay);
  border: 1px solid var(--rb-border);
  color: var(--rb-text-secondary);
  font-size: var(--text-xs);
  font-weight: 500;
}

.rb-tag--brand {
  background: var(--rb-brand-subtle);
  border-color: var(--rb-border-brand);
  color: var(--rb-brand);
}


/* ── TOGGLE / TAB BAR ──────────────────────────────────────── */

.rb-tabs {
  display: flex;
  gap: var(--space-1);
  padding: var(--space-1);
  background: var(--rb-bg-elevated);
  border-radius: 0;
  border: 1px solid var(--rb-border);
}

.rb-tab {
  flex: 1;
  padding: var(--space-2) var(--space-4);
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--rb-text-secondary);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-default);
  text-align: center;
}

.rb-tab:hover {
  color: var(--rb-text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.rb-tab--active {
  background: var(--rb-brand-subtle);
  color: var(--rb-brand);
  font-weight: 600;
}


/* ── MODAL ─────────────────────────────────────────────────── */

.rb-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

.rb-modal {
  width: 100%;
  max-width: 560px;
  max-height: 80vh;
  overflow-y: auto;
  background: var(--rb-bg-surface);
  border: 1px solid var(--rb-border);
  border-radius: 0;
  box-shadow: none;
}

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

.rb-modal__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--rb-text-primary);
  margin: 0;
}

.rb-modal__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--rb-text-tertiary);
  font-size: var(--text-lg);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-default);
}

.rb-modal__close:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--rb-text-primary);
}

.rb-modal__body {
  padding: var(--space-6);
}

.rb-modal__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--rb-border);
}


/* ── ALERT / NOTICE ────────────────────────────────────────── */

.rb-alert {
  padding: var(--space-4) var(--space-5);
  border-radius: 0;
  border: 1px solid;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.rb-alert--info {
  background: var(--rb-info-subtle);
  border-color: rgba(59, 130, 246, 0.25);
  color: var(--rb-info);
}

.rb-alert--success {
  background: var(--rb-success-subtle);
  border-color: rgba(16, 185, 129, 0.25);
  color: var(--rb-success);
}

.rb-alert--warning {
  background: var(--rb-warning-subtle);
  border-color: rgba(245, 158, 11, 0.25);
  color: var(--rb-warning);
}

.rb-alert--danger {
  background: var(--rb-danger-subtle);
  border-color: rgba(239, 68, 68, 0.25);
  color: var(--rb-danger);
}

.rb-alert__title {
  font-weight: 700;
  margin-bottom: var(--space-1);
}


/* ── AVATAR ────────────────────────────────────────────────── */

.rb-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--rb-brand-subtle);
  color: var(--rb-brand);
  font-size: var(--text-sm);
  font-weight: 700;
  flex-shrink: 0;
  overflow: hidden;
}

.rb-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rb-avatar--sm {
  width: 28px;
  height: 28px;
  font-size: var(--text-xs);
}

.rb-avatar--lg {
  width: 48px;
  height: 48px;
  font-size: var(--text-lg);
}


/* ── UTILITY: VISUALLY HIDDEN ──────────────────────────────── */

.rb-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


/* ── UTILITY: TRUNCATE ─────────────────────────────────────── */

.rb-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rb-line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}