/* ==========================================================================
   Training Platform — Core Components
   Spec: TRAINING_DESIGN_STANDARDS.md §13
   ========================================================================== */

/* ─────────────────────────── 13.1 Buttons ─────────────────────────── */

.training-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0 var(--space-lg);
  height: 44px;
  min-width: 44px;
  border: 1.5px solid transparent;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--dur-1) var(--ease-standard),
    color var(--dur-1) var(--ease-standard),
    border-color var(--dur-1) var(--ease-standard),
    box-shadow var(--dur-1) var(--ease-standard),
    filter var(--dur-1) var(--ease-standard),
    transform var(--dur-1) var(--ease-standard);
  white-space: nowrap;
  user-select: none;
}

.training-btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-ring-primary);
}

.training-btn:active:not(:disabled) {
  transform: scale(0.97);
}

.training-btn:disabled,
.training-btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
}

/* RTL icon spacing optical adjustment — §12.9 */
html[dir="rtl"] .training-btn {
  gap: 0.75rem;
}

.training-btn--primary {
  background: var(--ahruf-primary-dark, #1b4332);
  color: #ffffff;
  border-color: transparent;
}
.training-btn--primary:hover:not(:disabled) {
  background: var(--ahruf-primary);
  filter: var(--training-cta-focus);
}

.training-btn--accent {
  background: var(--ahruf-accent);
  color: #ffffff;
}
.training-btn--accent:hover:not(:disabled) {
  background: var(--ahruf-accent-600);
  filter: var(--training-cta-focus);
}
.training-btn--accent:focus-visible {
  box-shadow: 0 0 0 3px rgba(231, 111, 81, 0.35);
}

.training-btn--outline {
  background: transparent;
  color: var(--ahruf-primary-dark, #1b4332);
  border-color: currentColor;
}
.training-btn--outline:hover:not(:disabled) {
  background: var(--ahruf-primary-50);
}

.training-btn--ghost {
  background: transparent;
  color: var(--ahruf-text);
  border-color: transparent;
}
.training-btn--ghost:hover:not(:disabled) {
  background: var(--ahruf-surface-muted);
}

.training-btn--danger {
  background: var(--state-danger);
  color: #ffffff;
}
.training-btn--danger:hover:not(:disabled) {
  filter: var(--training-cta-focus);
}
.training-btn--danger:focus-visible {
  box-shadow: var(--shadow-ring-danger);
}

.training-btn--ghost.training-btn--danger {
  background: transparent;
  color: var(--state-danger);
}
.training-btn--ghost.training-btn--danger:hover:not(:disabled) {
  background: var(--ahruf-accent-50);
}

.training-btn--ai {
  background: var(--grad-ai-aurora);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.training-btn--ai:focus-visible {
  box-shadow: var(--shadow-ring-ai);
}

/* Sizes */
.training-btn--sm {
  height: 36px;
  padding: 0 var(--space-md);
  font-size: 0.875rem;
}
.training-btn--lg {
  height: 52px;
  padding: 0 var(--space-xl);
  font-size: 1.0625rem;
}
.training-btn--xl {
  height: 60px;
  padding: 0 var(--space-xl);
  font-size: 1.125rem;
}

/* Meta segment (e.g. price under label) */
.training-btn__meta {
  opacity: 0.85;
  font-weight: 400;
  font-size: 0.875em;
  padding-inline-start: var(--space-sm);
  border-inline-start: 1px solid rgba(255, 255, 255, 0.25);
  margin-inline-start: var(--space-sm);
}

.training-btn__spinner {
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-inline-end-color: transparent;
  border-radius: 50%;
  animation: training-spin 0.8s linear infinite;
}

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

/* ─────────────────────────── 13.2 Inputs / Form Fields ─────────────────────────── */

.training-input,
.training-textarea,
.training-select {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-md);
  border: 1px solid var(--ahruf-border);
  border-radius: var(--radius-sm);
  background: var(--ahruf-surface);
  color: var(--ahruf-text);
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.5;
  transition:
    border-color var(--dur-1) var(--ease-standard),
    box-shadow var(--dur-1) var(--ease-standard);
}

.training-textarea {
  height: auto;
  min-height: 96px;
  padding: var(--space-sm) var(--space-md);
  resize: vertical;
}

.training-input:focus-visible,
.training-textarea:focus-visible,
.training-select:focus-visible {
  outline: none;
  border-color: var(--ahruf-primary);
  box-shadow: var(--shadow-ring-primary);
}

.training-input[aria-invalid="true"],
.training-textarea[aria-invalid="true"],
.training-select[aria-invalid="true"] {
  border-color: var(--state-danger);
}

.training-input[aria-invalid="true"]:focus-visible,
.training-textarea[aria-invalid="true"]:focus-visible,
.training-select[aria-invalid="true"]:focus-visible {
  box-shadow: var(--shadow-ring-danger);
}

.training-form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.training-form-field__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ahruf-text);
}

.training-form-field__label .required-marker,
.training-form-field__required {
  color: var(--state-danger);
  margin-inline-start: 2px;
}

.training-form-field__help {
  font-size: 0.8125rem;
  color: var(--ahruf-text-muted);
}

.training-form-field__error {
  font-size: 0.8125rem;
  color: var(--state-danger);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.training-select--sm {
  height: 36px;
  font-size: 0.875rem;
}

/* ─── Checkbox / Radio — §12.10 touch targets ─── */
.training-checkbox,
.training-radio {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 44px; /* §12.10 — Arabic script vertical span */
  padding: 0 var(--space-xs);
  cursor: pointer;
  user-select: none;
}

.training-checkbox input,
.training-radio input {
  width: 20px;
  height: 20px;
  accent-color: var(--ahruf-primary);
  margin: 0;
  flex-shrink: 0;
}

/* ─────────────────────────── 13.3 Chips, Badges, Tags ─────────────────────────── */

.training-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0 var(--space-md);
  height: 32px;
  min-width: 44px;
  border-radius: var(--training-radius-pill);
  border: 1px solid var(--ahruf-border-strong);
  background: var(--ahruf-surface);
  color: var(--ahruf-text);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--dur-1) var(--ease-standard);
  white-space: nowrap;
  scroll-snap-align: start;
}

.training-pill:hover {
  border-color: var(--ahruf-primary);
  color: var(--ahruf-primary-dark, #1b4332);
}

.training-pill.is-active,
.training-pill[aria-selected="true"],
.training-pill[aria-current="page"] {
  background: var(--ahruf-primary-dark, #1b4332);
  color: #ffffff;
  border-color: transparent;
}

.training-pill__count {
  font-size: 0.75rem;
  padding: 0 0.375rem;
  border-radius: var(--training-radius-pill);
  background: rgba(255, 255, 255, 0.25);
  font-variant-numeric: tabular-nums;
}

.training-pill:not(.is-active) .training-pill__count {
  background: var(--ahruf-surface-muted);
}

.training-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0 0.5rem;
  height: 22px;
  border-radius: var(--training-radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0;
}

.training-badge--primary {
  background: rgba(27, 67, 50, 0.1);
  color: var(--ahruf-primary-dark, #1b4332);
}
.training-badge--accent {
  background: var(--ahruf-accent-50);
  color: var(--ahruf-accent-600);
}
.training-badge--success {
  background: rgba(47, 158, 68, 0.1);
  color: var(--state-success);
}
.training-badge--warn {
  background: rgba(224, 168, 0, 0.12);
  color: #8a6500;
}
.training-badge--danger {
  background: rgba(215, 38, 61, 0.1);
  color: var(--state-danger);
}
.training-badge--ai {
  background: rgba(108, 92, 231, 0.12);
  color: var(--state-ai);
}

.training-tag {
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-sm);
  height: 24px;
  border-radius: var(--radius-sm);
  background: var(--ahruf-primary-50);
  color: var(--ahruf-primary-dark, #1b4332);
  font-size: 0.8125rem;
  font-weight: 500;
}

/* ─────────────────────────── 13.4 Cards ─────────────────────────── */

.training-card {
  background: var(--ahruf-surface);
  border: 1px solid var(--ahruf-border);
  border-radius: var(--radius-md);
  box-shadow: var(--training-shadow-xs);
  overflow: hidden;
  transition:
    box-shadow var(--dur-3) var(--ease-standard),
    transform var(--dur-3) var(--ease-standard);
}

.training-card:hover {
  box-shadow: var(--training-shadow-md);
  transform: translateY(-2px);
}

.training-card__body {
  padding: var(--space-lg);
}

.training-card--feature {
  background: var(--grad-card-soft);
  border-radius: var(--radius-lg);
  border-top: 3px solid var(--ahruf-primary);
}

/* ─────────────────────────── 13.5 Tabs / Pill Rail ─────────────────────────── */

.training-pill-rail {
  position: relative;
  margin-block: var(--space-lg);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.training-pill-rail::-webkit-scrollbar {
  display: none;
}

.training-pill-rail[data-sticky="true"] {
  position: sticky;
  top: 72px;
  z-index: 20;
  padding-block: var(--space-sm);
  background: color-mix(in srgb, var(--ahruf-bg) 92%, transparent);
  backdrop-filter: blur(8px);
}

.training-pill-rail__list {
  display: flex;
  gap: var(--space-sm);
  list-style: none;
  padding: 0;
  margin: 0;
}

.training-section-tabs {
  border-bottom: 1px solid var(--ahruf-border);
  margin-block: var(--space-lg);
}

.training-section-tabs[data-sticky="true"] {
  position: sticky;
  top: 72px;
  z-index: 18;
  background: var(--ahruf-bg);
}

.training-section-tabs__list {
  display: flex;
  gap: var(--space-xl);
  list-style: none;
  padding: 0;
  margin: 0;
  overflow-x: auto;
}

.training-section-tabs__link {
  display: inline-block;
  padding: var(--space-md) 0;
  color: var(--ahruf-text-muted);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition:
    color var(--dur-2) var(--ease-standard),
    border-color var(--dur-2) var(--ease-standard);
}

.training-section-tabs__link:hover {
  color: var(--ahruf-text);
}

.training-section-tabs__link.is-active,
.training-section-tabs__link[aria-selected="true"],
.training-section-tabs__link[aria-current="location"] {
  color: var(--ahruf-primary-dark, #1b4332);
  border-bottom-color: var(--ahruf-primary-dark, #1b4332);
}

/* ─────────────────────────── 13.6 Breadcrumb ─────────────────────────── */

.training-breadcrumb {
  padding-block: var(--space-md);
  font-size: 0.875rem;
}

.training-breadcrumb__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.training-breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.training-breadcrumb__link {
  color: var(--ahruf-text-muted);
  text-decoration: none;
  transition: color var(--dur-1) var(--ease-standard);
}
.training-breadcrumb__link:hover {
  color: var(--ahruf-primary-dark, #1b4332);
}

.training-breadcrumb__sep {
  color: var(--ahruf-text-light);
}
.training-breadcrumb__current {
  color: var(--ahruf-text);
  font-weight: 500;
}

/* ─────────────────────────── 13.8 Progress ─────────────────────────── */

.training-progress {
  width: 100%;
  height: 6px;
  background: var(--ahruf-surface-muted);
  border-radius: var(--training-radius-pill);
  overflow: hidden;
}

.training-progress__fill {
  height: 100%;
  background: var(--ahruf-primary-400);
  border-radius: inherit;
  transition: width var(--dur-4) var(--ease-standard);
}

/* ─────────────────────────── 13.11 Skeleton Shimmer ─────────────────────────── */

.training-skeleton {
  position: relative;
  background: var(--ahruf-surface-muted);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.training-skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.4) 50%,
    transparent 100%
  );
  animation: training-shimmer 1.4s linear infinite;
}

/* RTL: flip shimmer direction to match reading flow */
html[dir="rtl"] .training-skeleton::after {
  animation-direction: reverse;
}

@keyframes training-shimmer {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

.training-skeleton__thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: rgba(0, 0, 0, 0.04);
}

.training-skeleton__line {
  height: 12px;
  margin: var(--space-sm) var(--space-md);
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.06);
}

.training-skeleton__line--short {
  width: 30%;
}
.training-skeleton__line--mid {
  width: 60%;
}
.training-skeleton__line--long {
  width: 85%;
}

.training-skeleton__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.06);
  flex-shrink: 0;
}

.training-skeleton__row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
}

.training-skeleton--course-card {
  min-height: 416px;
}

@media (max-width: 640px) {
  .training-skeleton--course-card {
    min-height: 280px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .training-skeleton::after {
    animation: none;
    background: rgba(255, 255, 255, 0.2);
    opacity: 0.6;
  }
}

/* ─────────────────────────── Search field ─────────────────────────── */

.training-search {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 420px;
}

.training-search__icon {
  position: absolute;
  inset-inline-start: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--ahruf-text-muted);
  pointer-events: none;
}

.training-search__input {
  width: 100%;
  height: 44px;
  padding-inline-start: calc(var(--space-md) * 2 + 20px);
  padding-inline-end: var(--space-md);
  border: 1px solid var(--ahruf-border);
  border-radius: var(--training-radius-pill);
  background: var(--ahruf-surface);
  font-size: 0.9375rem;
}
.training-search__input:focus-visible {
  outline: none;
  border-color: var(--ahruf-primary);
  box-shadow: var(--shadow-ring-primary);
}

/* ─────────────────────────── Icon helper ─────────────────────────── */

.training-icon {
  display: inline-flex;
  width: 1em;
  height: 1em;
  fill: currentColor;
  flex-shrink: 0;
}

/* Directional icons — mirror automatically in RTL */
html[dir="rtl"] .training-icon--directional {
  transform: scaleX(-1);
}