/* page-course-home.css
   Courses catalog only (/courses/).
   This page should feel like a flagship catalog, not a generic listing.
*/

body[data-page="course-home"] {
  --course-shell-max: 1080px;
  overflow-x: clip;
}

body[data-page="course-home"] .main-content,
body[data-page="course-home"] .content-body {
  min-width: 0;
  overflow-x: clip;
}

body[data-page="course-home"] .content-body {
  width: 100%;
  max-width: var(--course-shell-max);
  margin-inline: auto;
}

.course-home-hero,
.course-home-intro,
.course-home-grid,
.listing-empty {
  width: 100%;
  margin-inline: auto;
}

.course-home-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: var(--space-5);
  margin-bottom: var(--space-8);
  padding: clamp(1.5rem, 3vw, 2.2rem);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 30px;
  background:
    radial-gradient(circle at top right, rgba(124, 106, 247, 0.16), transparent 34%),
    radial-gradient(circle at bottom left, rgba(79, 195, 247, 0.1), transparent 28%),
    linear-gradient(180deg, rgba(16, 19, 33, 0.98), rgba(13, 16, 28, 0.98));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 22px 54px rgba(0, 0, 0, 0.26);
}

.course-home-hero__main,
.course-home-hero__rail {
  min-width: 0;
}

.course-home-hero__eyebrow {
  margin: 0 0 var(--space-3);
  color: #c7bfff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.course-home-hero__title {
  max-width: 11ch;
  margin: 0 0 var(--space-4);
  color: var(--text-primary);
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.course-home-hero__desc {
  max-width: 58ch;
  margin: 0 0 var(--space-4);
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.3vw, 1.08rem);
  line-height: 1.68;
}

.course-home-hero__manifesto {
  max-width: 42ch;
  margin: 0 0 var(--space-5);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
}

.course-home-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0 0 var(--space-5);
}

.course-home-hero__stat {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0.6rem 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-size: 0.84rem;
  line-height: 1.2;
}

.course-home-hero__stat strong {
  margin-right: 0.3rem;
  color: var(--text-primary);
  font-weight: 800;
  text-transform: lowercase;
}

.course-home-search {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: min(100%, 720px);
  min-width: 0;
  padding: 0.2rem 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  background: rgba(7, 10, 20, 0.72);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.course-home-search:focus-within {
  border-color: rgba(124, 106, 247, 0.45);
  box-shadow: 0 0 0 4px rgba(124, 106, 247, 0.12);
}

.course-home-search__icon {
  flex-shrink: 0;
  color: var(--text-muted);
}

.course-home-search__input {
  flex: 1;
  min-width: 0;
  min-height: 52px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
}

.course-home-search__input::placeholder {
  color: var(--text-muted);
}

.course-home-search__kbd {
  flex-shrink: 0;
  padding: 0.18rem 0.48rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.course-home-hero__rail {
  display: grid;
  gap: var(--space-3);
  align-content: start;
}

.course-home-hero__signal {
  padding: 1rem 1.05rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
}

.course-home-hero__signal-kicker {
  display: block;
  margin-bottom: 0.35rem;
  color: #c7bfff;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.course-home-hero__signal-link {
  color: var(--text-primary);
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.45;
  text-decoration: none;
}

.course-home-hero__signal-link:hover {
  color: var(--accent-hover);
  text-decoration: none;
}

.course-home-intro {
  margin-bottom: var(--space-6);
}

.course-home-intro__copy {
  max-width: 58ch;
}

.course-home-intro__eyebrow {
  margin: 0 0 0.45rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.course-home-intro__title {
  margin: 0 0 0.55rem;
  color: var(--text-primary);
  font-size: clamp(1.55rem, 2vw, 2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.course-home-intro__desc {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.65;
}

.course-home-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.course-card {
  display: flex;
  min-width: 0;
  color: inherit;
  text-decoration: none;
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at top right, color-mix(in srgb, var(--course-accent) 18%, transparent), transparent 38%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 18px 38px rgba(0, 0, 0, 0.22);
  transition: transform 150ms var(--ease-out), border-color 150ms, box-shadow 150ms;
}

.course-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--course-accent) 40%, rgba(255, 255, 255, 0.12));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 24px 46px rgba(0, 0, 0, 0.26);
  text-decoration: none;
}

.course-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.course-card__body {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  min-width: 0;
  min-height: 260px;
  padding: clamp(1.2rem, 2vw, 1.55rem);
}

.course-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.course-card__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0.2rem 0.7rem;
  border-radius: 14px;
  background: color-mix(in srgb, var(--course-accent) 18%, rgba(255, 255, 255, 0.05));
  border: 1px solid color-mix(in srgb, var(--course-accent) 28%, rgba(255, 255, 255, 0.08));
  color: var(--text-primary);
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.course-card__meta {
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.45;
  text-align: right;
}

.course-card__title {
  color: var(--text-primary);
  font-size: clamp(1.2rem, 1.7vw, 1.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.course-card__desc {
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.68;
  overflow-wrap: anywhere;
}

.course-card__footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-3);
  min-width: 0;
}

.course-card__slug {
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.5;
  text-transform: capitalize;
}

.course-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 700;
  white-space: nowrap;
}

.listing-empty {
  margin-top: var(--space-6);
}

@media (max-width: 1024px) {
  .course-home-hero {
    grid-template-columns: 1fr;
  }

  .course-home-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  body[data-page="course-home"] .content-body {
    width: 100%;
  }

  .course-home-hero {
    gap: var(--space-4);
    padding: 1.2rem 1rem;
    border-radius: 24px;
    margin-bottom: var(--space-6);
  }

  .course-home-hero__title {
    max-width: 12ch;
    font-size: clamp(2rem, 8.5vw, 3rem);
  }

  .course-home-hero__desc,
  .course-home-hero__manifesto {
    max-width: 32ch;
  }

  .course-home-search__input {
    min-height: 48px;
    font-size: 1rem;
  }

  .course-home-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .course-card {
    border-radius: 22px;
  }

  .course-card__body {
    min-height: 0;
    padding: 1.1rem;
  }

  .course-card__footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .course-home-hero__stats {
    gap: var(--space-2);
  }

  .course-home-hero__stat {
    width: 100%;
    justify-content: center;
  }

  .course-home-hero__manifesto {
    font-size: 0.94rem;
  }

  .course-card__title {
    font-size: 1.1rem;
  }

  .course-card__desc {
    font-size: 0.9rem;
    line-height: 1.58;
  }

  .course-card__meta {
    font-size: 0.78rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .course-card,
  .course-home-hero__signal-link {
    transition: none !important;
  }

  .course-card:hover {
    transform: none !important;
  }
}