/* 홈(목록) 화면 컴포넌트: 히어로, 검색, 카테고리 탭, 글 카드 */

/* ---------- 히어로 ---------- */
.hero {
  padding: 56px 0 8px;
}

.hero h1 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.3;
}

.hero p {
  margin-top: 10px;
  font-size: 16px;
  color: var(--text-weak);
}

/* ---------- 검색 ---------- */
.search-wrap {
  position: relative;
  margin: 28px 0 20px;
}

.search-wrap svg {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-weak);
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 52px;
  padding: 0 20px 0 48px;
  font-size: 15px;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.search-input::placeholder {
  color: var(--text-weak);
}

.search-input:focus {
  background: var(--bg-card);
  border-color: var(--primary);
}

/* ---------- 카테고리 탭 ---------- */
.category-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0 16px;
  scrollbar-width: none;
}

.category-tabs::-webkit-scrollbar {
  display: none;
}

.tab {
  flex: none;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sub);
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  transition: all 0.15s ease;
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  color: #fff;
  background: var(--primary);
}

.tab .count {
  margin-left: 4px;
  font-weight: 500;
  opacity: 0.65;
  font-size: 12px;
}

/* 하위 카테고리 탭: 상위 탭 선택 시에만 표시되는 두 번째 줄 */
.category-tabs.sub {
  padding-top: 0;
}

.category-tabs.sub:empty {
  display: none;
}

.category-tabs.sub .tab {
  padding: 6px 13px;
  font-size: 13px;
  background: transparent;
  border: 1.5px solid var(--border-strong);
}

.category-tabs.sub .tab.active {
  color: var(--primary);
  background: var(--primary-weak);
  border-color: transparent;
}

/* ---------- 활성 태그 필터 표시 ---------- */
.active-tag-bar {
  display: none;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--text-sub);
}

.active-tag-bar.show {
  display: flex;
}

.active-tag-bar .clear {
  color: var(--primary);
  font-weight: 600;
}

/* ---------- 글 카드 리스트 ---------- */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 40px;
}

.post-card {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-strong);
}

.post-card .body {
  flex: 1;
  min-width: 0;
}

.post-card .meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-weak);
  margin-bottom: 8px;
}

.post-card .meta .category {
  color: var(--primary);
  font-weight: 700;
}

.post-card h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.4;
  margin-bottom: 8px;
}

.post-card:hover h2 {
  color: var(--primary);
}

.post-card .summary {
  font-size: 15px;
  color: var(--text-sub);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card .thumb {
  flex: none;
  width: 130px;
  height: 96px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background: var(--bg-elevated);
}

.post-card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

/* ---------- 태그 칩 (공용) ---------- */
.tag-chip {
  padding: 4px 10px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--primary-weak-text);
  background: var(--primary-weak);
  border-radius: var(--radius-full);
  transition: filter 0.15s ease;
}

.tag-chip:hover {
  filter: brightness(0.95);
}

[data-theme="dark"] .tag-chip:hover {
  filter: brightness(1.2);
}

/* ---------- 빈 상태 ---------- */
.empty-state {
  padding: 80px 0;
  text-align: center;
  color: var(--text-weak);
}

.empty-state .emoji {
  font-size: 40px;
  margin-bottom: 12px;
}

/* ---------- 공용 버튼 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 44px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  color: #fff;
  background: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-ghost {
  color: var(--text-sub);
  background: var(--bg-elevated);
}

.btn-ghost:hover {
  color: var(--text);
  filter: brightness(0.97);
}

.btn-danger {
  color: var(--danger);
  background: var(--danger-weak);
}

.btn-sm {
  height: 36px;
  padding: 0 14px;
  font-size: 13.5px;
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 26px;
  }

  .post-card {
    padding: 20px;
  }

  .post-card .thumb {
    display: none;
  }
}