/* ========================================
   COURSE PAGE — AI for Product Designers
   Light theme using portfolio home tokens. Black accent (no copper).
   ======================================== */

/* ========================================
   COURSE LAYOUT
   ======================================== */

.course {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ========================================
   HERO
   ======================================== */

.course__hero {
  /* Clear the floating pill header. Min-height + flex-center keeps the
     hero content vertically balanced regardless of viewport height,
     same pattern as .frameworks__hero. */
  min-height: 100svh;
  padding-top: 7rem;
  padding-bottom: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.course__eyebrow {
  display: block;
  margin-bottom: 1rem;
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: var(--weight-bold);
  line-height: var(--lh-heading);
  letter-spacing: var(--ls-caption);
  text-transform: uppercase;
  color: var(--color-text-primary);
}

.course__title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin: 0 0 1.25rem;
  color: var(--color-text-primary);
}

.course__accent {
  color: var(--color-text-primary);
}

.course__intro {
  max-width: 540px;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
}

.course__meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.course__meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.course__meta-label {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: var(--weight-bold);
  line-height: var(--lh-heading);
  letter-spacing: var(--ls-caption);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.course__meta-val {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text-primary);
}

.course__meta-sub {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ========================================
   HERO CTA (dual: diagnostico primario + skip secundario)
   ======================================== */

.course__hero-cta {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 1.5rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.course__hero-cta.md-scope {
  --md-ref-typeface-brand: 'Space Grotesk', system-ui, sans-serif;
  --md-ref-typeface-plain: 'Inter', system-ui, sans-serif;
  --md-filled-button-container-color: var(--color-text-primary);
  --md-filled-button-label-text-color: var(--color-bg);
  --md-filled-button-container-shape: 999px;
  --md-filled-button-leading-space: 24px;
  --md-filled-button-trailing-space: 24px;
  --md-filled-button-with-leading-icon-leading-space: 16px;
  --md-filled-button-with-trailing-icon-trailing-space: 16px;
}

.course__hero-cta md-filled-button svg[slot="icon"] {
  width: 18px;
  height: 18px;
}

.course__hero-cta-link {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  text-decoration: underline;
  text-decoration-color: rgba(0, 0, 0, 0.25);
  text-underline-offset: 3px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.course__hero-cta-link:hover {
  color: var(--color-text-primary);
  text-decoration-color: var(--color-text-primary);
}

/* ========================================
   DIVIDER
   ======================================== */

.course__divider {
  border: none;
  height: 1px;
  background-color: rgba(0, 0, 0, 0.08);
  margin: 0;
}

/* ========================================
   SECTIONS
   ======================================== */

.course__section {
  min-height: 0;
  padding: 3rem 0;
}

.course__heading {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
  color: var(--color-text-primary);
  margin: 0 0 0.75rem;
}

.course__body {
  max-width: 580px;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
}

.course__body:last-child {
  margin-bottom: 0;
}

/* ========================================
   TAKEAWAYS LIST
   ======================================== */

.course__takeaways {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 680px;
}

.course__takeaway {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  padding-left: 1.5rem;
  position: relative;
}

.course__takeaway::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--color-text-primary);
  font-weight: 700;
}

/* ========================================
   SESSIONS LIST
   ======================================== */

.course__sessions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.course__session {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem;
  border: 1px solid rgba(0, 0, 0, 0.10);
  border-radius: 1rem;
  background-color: transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.course__session:hover {
  background-color: rgba(0, 0, 0, 0.02);
  border-color: rgba(0, 0, 0, 0.18);
}

.course__session-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  flex-shrink: 0;
  border-radius: 0.5rem;
  background-color: rgba(0, 0, 0, 0.06);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-primary);
}

.course__session-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 0.375rem;
}

.course__session-desc {
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0;
}

/* ========================================
   INSTRUCTOR CARD
   ======================================== */

.course__card {
  padding: 2.5rem;
  border: 1px solid rgba(0, 0, 0, 0.10);
  border-radius: 1rem;
}

.course__card-name {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 0.25rem;
}

.course__card-role {
  display: block;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.course__card-bio {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin: 0;
}

.course__card-bio strong {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* ========================================
   DETAILS GRID
   ======================================== */

.course__details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.course__detail-card {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.5rem;
  border: 1px solid rgba(0, 0, 0, 0.10);
  border-radius: 1rem;
}

.course__detail-label {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: var(--weight-bold);
  line-height: var(--lh-heading);
  letter-spacing: var(--ls-caption);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.course__detail-val {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.course__detail-sub {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ========================================
   CTA
   ======================================== */

.course__cta {
  text-align: center;
}

.course__cta .course__heading {
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: 1rem;
}

.course__cta .course__body {
  max-width: 420px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
}

/* Material 3 token overrides for the course CTA (light theme + black accent). */
.course__cta.md-scope {
  --md-ref-typeface-brand: 'Space Grotesk', system-ui, sans-serif;
  --md-ref-typeface-plain: 'Inter', system-ui, sans-serif;
  --md-filled-button-container-color: var(--color-text-primary);
  --md-filled-button-label-text-color: var(--color-bg);
  --md-filled-button-container-shape: 999px;
  --md-filled-button-leading-space: 24px;
  --md-filled-button-trailing-space: 24px;
  --md-filled-button-with-leading-icon-leading-space: 16px;
  --md-filled-button-with-trailing-icon-trailing-space: 16px;
}

/* Keep the class for GSAP scroll animations targeting .course__btn. */
md-filled-button.course__btn {
  --md-filled-button-label-text-size: 1.0625rem;
}

.course__cta md-filled-button svg[slot="icon"] {
  width: 18px;
  height: 18px;
}

.course__contact {
  margin-top: 1rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.course__contact a {
  color: var(--color-text-primary);
  text-decoration: underline;
  text-decoration-color: rgba(0, 0, 0, 0.35);
  text-underline-offset: 2px;
}

.course__contact a:hover {
  text-decoration-color: var(--color-text-primary);
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
  .course__hero {
    min-height: 100svh;
    padding-top: 5rem;
    padding-bottom: 3rem;
  }

  .course__section {
    padding: 2rem 0;
  }

  .course__details-grid {
    grid-template-columns: 1fr;
  }

  .course__meta-row {
    flex-direction: column;
    gap: 1.25rem;
  }
}

@media (max-width: 480px) {
  .course__title {
    letter-spacing: -0.5px;
  }

  .course__card {
    padding: 1.5rem;
  }
}