/* ─────────────────────────────────────────────────────────────────────────
   /courses/{id} — course detail surface
   Loaded via {% block head_extra %}.
   Tokens consumed from tokens.css; form-class redirects already global.
   ───────────────────────────────────────────────────────────────────────── */

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

.cd-breadcrumb {
  font-family: var(--font-sans);
  font-size: var(--type-label-size);
  color: var(--color-text-soft);
  margin: 0 0 var(--space-md);
  padding-bottom: var(--space-2xs);
  border-bottom: var(--border-hairline);
}
.cd-breadcrumb a {
  color: var(--color-sky-action-deep);
  text-decoration: none;
}
.cd-breadcrumb a:hover {
  color: var(--color-sky-action);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.cd-breadcrumb__sep {
  margin: 0 var(--space-3xs);
  color: var(--color-border-strong);
}
.cd-breadcrumb__current {
  color: var(--color-text);
}

/* ─── Hero ─────────────────────────────────────────────────────────────── */

.cd-hero {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-xl);
  align-items: start;
  margin-block: var(--space-md) var(--space-2xl);
}
.cd-hero--text-only {
  grid-template-columns: 1fr;
}
@media (max-width: 768px) {
  .cd-hero {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

.cd-hero__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  min-width: 0;             /* prevents grid from blowing out on long titles */
}

.cd-hero__title {
  font-family: var(--font-sans);
  font-size: var(--type-headline-size);
  font-weight: var(--type-headline-weight);
  line-height: var(--type-headline-line);
  letter-spacing: var(--type-headline-track);
  color: var(--color-text);
  margin: 0;
  text-wrap: balance;
}

.cd-hero__heading {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-text-soft);
  margin: 0;
  text-wrap: pretty;
}

.cd-hero__meta {
  font-family: var(--font-sans);
  font-size: var(--type-label-size);
  color: var(--color-text-soft);
  margin: 0;
}
.cd-hero__meta-sep {
  margin: 0 var(--space-3xs);
  color: var(--color-border-strong);
}

.cd-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
  margin-top: var(--space-2xs);
}
.cd-hero__price-tag {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  font-size: var(--type-body-size);
  font-weight: 500;
  color: var(--color-text);
  border: var(--border-hairline);
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-md);
  letter-spacing: -0.01em;
}
.cd-hero__enrolled-tag {
  font-family: var(--font-sans);
  font-size: var(--type-label-size);
  font-weight: 500;
  color: var(--color-success-deep);
  background-color: var(--color-success-soft);
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
}

.cd-hero__figure {
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  background-color: var(--color-surface-band);
}
.cd-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ─── Description prose ────────────────────────────────────────────────── */

.cd-description {
  max-width: var(--measure-prose);
  margin-block: var(--space-md) var(--space-2xl);
  font-family: var(--font-sans);
  font-size: var(--type-body-size);
  line-height: var(--type-body-line);
  color: var(--color-text);
}
.cd-description p,
.cd-description ul,
.cd-description ol {
  margin: 0 0 var(--space-md);
  text-wrap: pretty;
}
.cd-description ul,
.cd-description ol {
  padding-left: var(--space-md);
}
.cd-description h2 {
  font-size: var(--type-title-size);
  font-weight: var(--type-title-weight);
  margin: var(--space-lg) 0 var(--space-2xs);
}
.cd-description h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: var(--space-md) 0 var(--space-2xs);
}
.cd-description a {
  color: var(--color-sky-action-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.cd-description a:hover {
  color: var(--color-sky-action);
}
.cd-description code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background-color: var(--color-surface-band);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
}

/* ─── Section title (shared across announcement / instructor / lessons) ── */

.cd-section-title {
  font-family: var(--font-sans);
  font-size: var(--type-title-size);
  font-weight: var(--type-title-weight);
  letter-spacing: var(--type-title-track);
  color: var(--color-text);
  margin: var(--space-2xl) 0 var(--space-md);
  padding-bottom: var(--space-2xs);
  border-bottom: var(--border-hairline);
}

/* ─── Announcements list ───────────────────────────────────────────────── */

.cd-announcements {
  list-style: none;
  margin: 0 0 var(--space-2xl);
  padding: 0;
  border-top: var(--border-hairline);
}
.cd-announcements__item {
  padding: var(--space-md) 0;
  border-bottom: var(--border-hairline);
}
.cd-announcements__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xs);
}
.cd-announcements__title {
  font-family: var(--font-sans);
  font-size: var(--type-title-size);
  font-weight: 600;
  margin: 0;
}
.cd-announcements__general-tag {
  display: inline-flex;
  align-items: center;
  font-size: var(--type-caption-size);
  font-weight: 500;
  color: var(--color-text-soft);
  border: var(--border-hairline);
  padding: 0.0625rem 0.4375rem;
  border-radius: var(--radius-sm);
  margin-left: var(--space-2xs);
  vertical-align: middle;
}
.cd-announcements__date {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  font-size: var(--type-caption-size);
  color: var(--color-text-soft);
  white-space: nowrap;
}
.cd-announcements__body {
  font-family: var(--font-sans);
  font-size: var(--type-body-size);
  line-height: var(--type-body-line);
  color: var(--color-text-soft);
  max-width: var(--measure-prose);
}
.cd-announcements__body p {
  margin: 0 0 var(--space-2xs);
}

/* ─── Pricing plan picker (CSS-only :checked selection) ────────────────── */

.cd-plans {
  margin-block: var(--space-md) var(--space-2xl);
}
.cd-plans__group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.cd-plan-card {
  position: relative;
  display: block;
  cursor: pointer;
}
.cd-plan-card__radio {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.cd-plan-card__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xs);
  height: 100%;
  padding: var(--space-md);
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  background-color: var(--color-surface-elevated);
  transition: border-color   0.15s var(--ease-out-quart),
              background-color 0.15s var(--ease-out-quart);
}
.cd-plan-card:hover .cd-plan-card__inner {
  border-color: var(--color-border-strong);
}
.cd-plan-card__radio:checked ~ .cd-plan-card__inner {
  border-color: var(--color-sky-action);
  background-color: var(--color-sky-action-soft);
}
.cd-plan-card__radio:focus-visible ~ .cd-plan-card__inner {
  box-shadow: var(--focus-ring);
}

.cd-plan-card__price {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  font-size: 1.625rem;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0;
}
.cd-plan-card__currency {
  font-family: var(--font-mono);
  font-size: var(--type-caption-size);
  color: var(--color-text-soft);
  margin: 0;
}
.cd-plan-card__name {
  font-family: var(--font-sans);
  font-size: var(--type-body-size);
  font-weight: 600;
  color: var(--color-text);
  margin: var(--space-3xs) 0 0;
}
.cd-plan-card__cadence {
  font-family: var(--font-sans);
  font-size: var(--type-caption-size);
  color: var(--color-text-soft);
  margin: 0;
}
.cd-plan-card__desc {
  font-family: var(--font-sans);
  font-size: var(--type-caption-size);
  line-height: 1.4;
  color: var(--color-text-soft);
  margin-top: var(--space-2xs);
}
.cd-plan-card__limit {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  font-size: var(--type-caption-size);
  color: var(--color-text-soft);
  margin: 0;
}

.cd-plans__checkout {
  display: flex;
  align-items: stretch;
  gap: 0;
  max-width: 26rem;
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-surface);
  transition: border-color 0.15s var(--ease-out-quart);
}
.cd-plans__checkout:focus-within {
  border-color: var(--color-sky-action);
  box-shadow: var(--focus-ring);
}
.cd-plans__checkout .input {
  flex: 1;
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
  border-radius: 0;
}
.cd-plans__checkout .input:focus,
.cd-plans__checkout .input:focus-visible {
  border: none !important;
  box-shadow: none !important;
}
.cd-plans__checkout .button {
  border-radius: 0;
  border: none;
  border-left: var(--border-hairline);
}

/* ─── Instructor card ──────────────────────────────────────────────────── */

.cd-instructor {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--space-md);
  padding: var(--space-md);
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  margin-block: var(--space-lg) var(--space-2xl);
}
.cd-instructor--no-avatar {
  grid-template-columns: 1fr;
}
.cd-instructor__avatar {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-pill);
  object-fit: cover;
  background-color: var(--color-surface-band);
}
.cd-instructor__name {
  font-family: var(--font-sans);
  font-size: var(--type-title-size);
  font-weight: var(--type-title-weight);
  letter-spacing: var(--type-title-track);
  color: var(--color-text);
  margin: 0 0 var(--space-3xs);
}
.cd-instructor__headline {
  font-family: var(--font-sans);
  font-size: var(--type-label-size);
  color: var(--color-text-soft);
  margin: 0 0 var(--space-2xs);
}
.cd-instructor__bio {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-text-soft);
  margin: 0;
  text-wrap: pretty;
}

/* ─── Lessons list ─────────────────────────────────────────────────────── */

.cd-lessons {
  list-style: none;
  margin: 0 0 var(--space-2xl);
  padding: 0;
  border-top: var(--border-hairline);
  counter-reset: lesson;
}
.cd-lessons__item {
  display: grid;
  grid-template-columns: 2.75rem 1.5rem 1fr;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: var(--border-hairline);
}
.cd-lessons__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  font-size: var(--type-label-size);
  font-weight: 500;
  color: var(--color-text-soft);
}
.cd-lessons__status {
  font-size: 1.125rem;
  line-height: 1;
  text-align: center;
}
.cd-lessons__status--complete {
  color: var(--color-success-deep);
}
.cd-lessons__status--incomplete {
  color: var(--color-text-soft);
  opacity: 0.7;
}
.cd-lessons__title {
  font-family: var(--font-sans);
  font-size: var(--type-body-size);
  color: var(--color-text);
  min-width: 0;
}
.cd-lessons__title a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.15s var(--ease-out-quart);
}
.cd-lessons__title a:hover {
  color: var(--color-sky-action-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.cd-lessons__title a:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}
.cd-lessons__empty {
  padding: var(--space-md) 0;
  font-family: var(--font-sans);
  color: var(--color-text-soft);
  border-bottom: var(--border-hairline);
}

/* ─── Banner action button (small inline action inside .notification) ──── */

.cd-banner-action {
  display: inline-flex;
  align-items: center;
  margin-left: var(--space-sm);
  padding: 0.25rem 0.625rem;
  border: var(--border-hairline);
  border-radius: var(--radius-sm);
  background-color: transparent;
  color: inherit;
  font-family: var(--font-sans);
  font-size: var(--type-label-size);
  font-weight: 500;
  text-decoration: none;
  transition: border-color 0.15s var(--ease-out-quart);
}
.cd-banner-action:hover {
  border-color: currentColor;
}