/* Webinar card. Event-first card with a status chip, date block,
   title, thesis, and register/replay CTA. Two variants:
   - Default: grid card for upcoming/past rows.
   - .webinar-card--featured: expanded layout for the open-enrollment
     hero on the archive page. */

.webinar-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem 1.25rem 1.375rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow:
    0 1px 2px rgb(16 17 20 / 4%),
    0 10px 24px -18px rgb(16 17 20 / 10%);
  transition:
    transform var(--dur-med) var(--ease),
    border-color var(--dur-fast) var(--ease),
    box-shadow var(--dur-med) var(--ease);
}

.webinar-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklch, var(--brand-teal) 30%, var(--color-border));
  box-shadow:
    0 1px 2px rgb(16 17 20 / 4%),
    0 14px 28px -14px color-mix(in oklch, var(--brand-teal) 22%, transparent);
}

/* Open-enrollment cards get a teal hairline accent up top as an
   additional "this is live" signal. */
.webinar-card--open {
  border-color: color-mix(in oklch, var(--brand-teal) 35%, var(--color-border));
}
.webinar-card--open::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 1.25rem;
  right: 1.25rem;
  height: 2px;
  border-radius: 999px;
  background: var(--brand-gradient);
}

/* Past cards fade the chrome so they visually sit behind upcoming. */
.webinar-card--past {
  background: color-mix(in oklch, var(--color-foreground) 2%, var(--color-card));
}
.webinar-card--past .webinar-card__date-block {
  opacity: 0.7;
}

/* --- Head row: status chip + platform ---------------------------- */

.webinar-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.webinar-card__status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.625rem;
  font-size: 0.625rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted-foreground);
  background: color-mix(in oklch, var(--color-foreground) 4%, transparent);
  border: 1px solid color-mix(in oklch, var(--color-foreground) 8%, transparent);
  border-radius: 9999px;
}
.webinar-card__status--open-enrollment {
  color: color-mix(in oklch, var(--brand-teal) 55%, var(--color-foreground));
  background: color-mix(in oklch, var(--brand-teal) 10%, transparent);
  border-color: color-mix(in oklch, var(--brand-teal) 32%, transparent);
}
.webinar-card__status--past {
  color: var(--color-muted-foreground);
  background: color-mix(in oklch, var(--color-foreground) 3%, transparent);
}

.webinar-card__status-dot {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 999px;
  background: var(--brand-teal);
  box-shadow: 0 0 0 2px color-mix(in oklch, var(--brand-teal) 22%, transparent);
  animation: webinar-card-pulse 2.4s var(--ease, cubic-bezier(0.25, 0.46, 0.45, 0.94)) infinite;
}

@keyframes webinar-card-pulse {
  0%, 100% {
    box-shadow: 0 0 0 2px color-mix(in oklch, var(--brand-teal) 22%, transparent);
  }
  50% {
    box-shadow: 0 0 0 4px color-mix(in oklch, var(--brand-teal) 10%, transparent);
  }
}

.webinar-card__platform {
  font-family: var(--font-mono, var(--font-text));
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted-foreground);
}

/* --- Date block -------------------------------------------------- */

.webinar-card__date {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.webinar-card__date-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
  padding-right: 0.875rem;
  border-right: 1px solid var(--color-border);
}

.webinar-card__date-month {
  font-family: var(--font-mono, var(--font-text));
  font-size: 0.6875rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.14em;
  color: color-mix(in oklch, var(--brand-teal) 60%, var(--color-foreground));
  margin-bottom: 0.25rem;
}

.webinar-card__date-day {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: var(--font-weight-display);
  letter-spacing: -0.03em;
  color: var(--color-foreground);
}

.webinar-card__date-meta {
  display: flex;
  flex-direction: column;
  gap: 0.1875rem;
  font-family: var(--font-mono, var(--font-text));
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--color-muted-foreground);
}

.webinar-card__date-year {
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* --- Copy ------------------------------------------------------- */

.webinar-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 1.5vw, 1.375rem);
  font-weight: var(--font-weight-display);
  letter-spacing: -0.02em;
  line-height: 1.18;
  color: var(--color-foreground);
  text-wrap: balance;
}
.webinar-card__title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}
.webinar-card__title a:hover {
  color: var(--brand-teal);
}

.webinar-card__body {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--color-muted-foreground);
  line-height: var(--lh-snug);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.webinar-card__speakers {
  list-style: none;
  margin: 0;
  padding: 0.625rem 0 0;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: var(--fs-sm);
  color: var(--color-muted-foreground);
}

.webinar-card__actions {
  margin-top: auto;
  padding-top: 0.25rem;
}

/* --- Featured variant ------------------------------------------ */

.webinar-card--featured {
  padding: clamp(1.5rem, 2.5vw, 2rem);
  gap: 1.25rem;
}
.webinar-card--featured .webinar-card__title {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
}
.webinar-card--featured .webinar-card__body {
  font-size: var(--fs-base);
  -webkit-line-clamp: 5;
  max-width: 68ch;
}
.webinar-card--featured .webinar-card__date-day {
  font-size: clamp(2.25rem, 4vw, 3rem);
}
.webinar-card--featured .webinar-card__date {
  padding-block: 0.25rem;
}

/* --- Mobile ----------------------------------------------------- */

@media (max-width: 540px) {
  .webinar-card__actions.btn-group {
    flex-direction: column;
    align-items: stretch;
  }
  .webinar-card__actions .btn { width: 100%; }
}