/* 홈(index) · 카테고리(category/*) 페이지 전용 */

.section {
  margin-bottom: clamp(2.2rem, 3.2vw, 3.2rem);
}

.section__head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--color-border);
}

.section__title {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.section__desc {
  font-size: 0.88rem;
  color: var(--color-muted);
}

/* --- home hero --- */
.home-hero {
  margin-bottom: var(--space-xl);
}

.home-hero__inner {
  position: relative;
  overflow: hidden;
  text-align: center;
  background: linear-gradient(145deg, #ff5a2e 0%, #ff7a45 38%, #d94a28 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: calc(var(--radius) + 6px);
  padding: clamp(1.75rem, 4vw, 2.75rem) clamp(1.2rem, 2.5vw, 2.2rem);
  box-shadow: 0 20px 50px rgba(255, 106, 61, 0.25);
}

.home-hero__inner::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image:
    repeating-linear-gradient(
      -28deg,
      transparent,
      transparent 18px,
      rgba(255, 255, 255, 0.06) 18px,
      rgba(255, 255, 255, 0.06) 20px
    ),
    radial-gradient(circle at 18% 22%, rgba(255, 255, 255, 0.18) 0%, transparent 42%),
    radial-gradient(circle at 88% 78%, rgba(0, 0, 0, 0.12) 0%, transparent 45%);
  pointer-events: none;
}

.home-hero__inner > * {
  position: relative;
  z-index: 1;
}

.home-hero__title {
  font-size: clamp(1.65rem, 3.8vw, 2.35rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 0.55rem;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.2);
}

.home-hero__text {
  max-width: 52ch;
  margin: 0 auto var(--space-lg);
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.68;
  font-size: clamp(0.95rem, 1.6vw, 1.05rem);
}

.home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 0 auto var(--space-lg);
  justify-content: center;
}

.home-hero__actions .btn--primary {
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.22);
}

.home-hero__actions .btn--ghost {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
  background: rgba(0, 0, 0, 0.12);
}

.home-hero__actions .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: #fff;
  color: #fff;
}

.topic-chips {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
}

@media (min-width: 700px) {
  .topic-chips {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .topic-chips {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.topic-chip {
  display: block;
  padding: 0.78rem 0.95rem 0.72rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: calc(var(--radius) + 2px);
  background: rgba(15, 15, 16, 0.35);
  border-bottom: 3px solid transparent;
  transition:
    border-color var(--transition-ui),
    border-bottom-color var(--transition-ui),
    transform var(--transition-ui),
    box-shadow var(--transition-ui),
    background var(--transition-ui);
}

.topic-chip:hover {
  border-color: rgba(255, 255, 255, 0.22);
  border-bottom-color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
  background: rgba(15, 15, 16, 0.5);
}

.topic-chip__title {
  display: block;
  font-size: 0.87rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.96);
  margin-bottom: 0.12rem;
}

.topic-chip__desc {
  display: block;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.55;
}

/* --- featured post --- */
.featured-post {
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius) + 6px);
  padding: clamp(1.15rem, 2.2vw, 1.65rem);
  box-shadow: var(--shadow-card);
}

.featured-post__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-bottom: 0.5rem;
}

.featured-post__cat {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  background: var(--color-point-soft);
  color: var(--color-point);
  font-weight: 600;
}

.featured-post__title {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  line-height: 1.35;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  font-weight: 800;
  color: var(--color-text);
}

.featured-post__desc {
  max-width: 64ch;
  color: var(--color-body);
  line-height: 1.68;
  margin-bottom: var(--space-md);
}

/* --- category quick links --- */
.cat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--space-md) + 0.35rem);
}

@media (min-width: 800px) {
  .cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .cat-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.cat-box {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  min-height: 100%;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius) + 4px);
  padding: calc(var(--space-md) + 0.2rem);
  transition: border-color var(--transition-ui), box-shadow var(--transition-ui), transform var(--transition-ui);
}

.cat-box:hover {
  border-color: rgba(255, 106, 61, 0.45);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.cat-box__title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.cat-box__text {
  font-size: 0.87rem;
  color: var(--color-body);
  line-height: 1.65;
}

.cat-box__keywords {
  font-size: 0.78rem;
  color: var(--color-muted);
}

.cat-box__keywords strong {
  color: var(--color-point);
  font-weight: 600;
}

/* 귀여운 일러스트 영역 (플레이스홀더 SVG) */
.cat-box__image {
  align-self: flex-end;
  width: 5.85rem;
  height: 5.85rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
  pointer-events: none;
}

.cat-box__image svg {
  display: block;
  width: 100%;
  height: 100%;
}

.cat-box .btn {
  margin-top: auto;
  width: fit-content;
  position: relative;
  z-index: 1;
}

.cat-box .btn:focus-visible {
  z-index: 2;
}

/* --- starter list --- */
.starter-list {
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius) + 2px);
  padding: calc(var(--space-md) + 0.15rem);
}

/* 홈에서만 보조 영역 시각 밀도 완화 */
.home-hero + .section .section__head {
  margin-top: 0;
}

.starter-list li + li {
  margin-top: 0.45rem;
}

.starter-list__link {
  display: block;
  padding: 0.55rem 0.6rem 0.55rem 0.85rem;
  margin-left: -0.15rem;
  border-radius: 10px;
  font-size: 0.9rem;
  line-height: 1.58;
  border-left: 3px solid transparent;
  border-bottom: 2px solid transparent;
  transition:
    color var(--transition-ui),
    background var(--transition-ui),
    border-color var(--transition-ui),
    border-left-color var(--transition-ui),
    border-bottom-color var(--transition-ui);
}

.starter-list__link:hover {
  color: var(--color-text);
  background: var(--color-point-soft);
  border-left-color: var(--color-point);
  border-bottom-color: var(--color-point);
}

.starter-list__step {
  display: inline-block;
  margin-bottom: 0.22rem;
  padding-bottom: 0.12rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  border-bottom: 2px solid var(--color-border);
}

.starter-list__link:hover .starter-list__step {
  color: var(--color-point);
  border-bottom-color: var(--color-point);
}

.starter-list__title {
  display: block;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.1rem;
}

.starter-list__desc {
  display: block;
  font-size: 0.82rem;
  color: var(--color-muted);
}

.category-page__assist .starter-list {
  background: var(--color-card);
}

/* --- category page IA --- */
.category-page {
  --category-tone: rgba(255, 106, 61, 0.1);
}

.category-page__hero {
  background: linear-gradient(165deg, var(--category-tone) 0%, var(--color-surface-soft) 52%, var(--color-card) 100%);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius) + 6px);
  padding: clamp(1.2rem, 2.4vw, 1.85rem);
}

.category-page__eyebrow {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-point);
  letter-spacing: 0.02em;
}

.category-page__title {
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 0.45rem;
  font-weight: 800;
  color: var(--color-text);
}

.category-page__desc {
  max-width: 64ch;
  font-size: 0.95rem;
  color: var(--color-body);
  line-height: 1.68;
}

.category-page__featured {
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-point);
  border-radius: calc(var(--radius) + 4px);
  padding: calc(var(--space-md) + 0.15rem);
}

.category-page__featured-label {
  display: inline-block;
  margin-bottom: 0.45rem;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--color-point);
}

.category-page__featured-title {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  margin-bottom: 0.45rem;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--color-text);
}

.category-page__featured-desc {
  color: var(--color-body);
  margin-bottom: var(--space-md);
  font-size: 0.9rem;
  line-height: 1.65;
}

.category-page__related .section__head {
  margin-bottom: 0.8rem;
}

.category-page--bootcamp {
  --category-tone: rgba(255, 106, 61, 0.14);
}

.category-page--study {
  --category-tone: rgba(52, 211, 153, 0.12);
}

.category-page--collaboration {
  --category-tone: rgba(167, 139, 250, 0.14);
}

.category-page--workplace {
  --category-tone: rgba(251, 191, 36, 0.12);
}

.category-page--articles {
  --category-tone: rgba(148, 163, 184, 0.14);
}

/* 글 모음(articles) — SEO 본문: 목록·문단 가독성 */
.category-page__doc-inner {
  max-width: 68ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--color-body);
}

.category-page__doc-inner p {
  margin: 0 0 var(--space-md);
}

.category-page__doc-inner p:last-child {
  margin-bottom: 0;
}

.category-page__doc-inner h3 {
  margin: var(--space-lg) 0 var(--space-sm);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.category-page__doc-inner h3:first-child {
  margin-top: 0;
}

.category-page__doc-inner ul,
.category-page__doc-inner ol {
  margin: 0 0 var(--space-md);
  padding-left: 1.35rem;
}

.category-page__doc-inner ul {
  list-style: disc;
}

.category-page__doc-inner ol {
  list-style: decimal;
}

.category-page__doc-inner li {
  margin-bottom: var(--space-xs);
}

.category-page__doc-inner li:last-child {
  margin-bottom: 0;
}

.category-page__doc-inner strong {
  color: var(--color-text);
  font-weight: 700;
}

.category-page__doc-inner a {
  color: #ff9a79;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(255, 154, 121, 0.82);
  text-decoration-thickness: 1.8px;
  text-underline-offset: 4px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease, text-decoration-thickness 0.2s ease, text-shadow 0.2s ease;
}

.category-page__doc-inner a:hover {
  color: #ffaf93;
  text-decoration-color: #ffaf93;
  text-decoration-thickness: 2.2px;
  text-shadow: 0 0 10px rgba(255, 159, 124, 0.2);
}

.category-page__doc-inner a:focus-visible {
  outline: 2px solid rgba(255, 138, 99, 0.55);
  outline-offset: 2px;
  border-radius: 4px;
  text-decoration-color: #ffaf93;
  text-decoration-thickness: 2.2px;
}

@media (min-width: 1200px) {
  .main.category-page {
    max-width: 1240px;
  }

  .category-page > .section {
    max-width: 980px;
    margin-left: auto;
    margin-right: auto;
  }

  .category-page__hero,
  .category-page__featured,
  .category-page__assist .starter-list,
  .category-page__doc-inner {
    margin-left: auto;
    margin-right: auto;
  }

  .category-page__doc-inner {
    max-width: 72ch;
  }
}