/* ============================================================
   static/css/main.css - 매거진 테마 메인 스타일시트
   Gemini CLI 지시사항:
     이 파일은 수정하지 않아도 됩니다.
     색상 변경이 필요하면 :root의 CSS 변수만 수정하세요.
   ============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,400&family=DM+Sans:wght@400;500;600&display=swap');

/* ── CSS 변수 (색상/폰트 커스터마이즈) ── */
:root {
  --color-primary:   #F5A623;   /* 메인 강조색 (버튼, 배지 등) */
  --color-dark:      #111111;   /* 제목 텍스트 */
  --color-body:      #444444;   /* 본문 텍스트 */
  --color-muted:     #888888;   /* 날짜, 메타 정보 */
  --color-border:    #E8E8E8;   /* 구분선 */
  --color-bg:        #FFFFFF;   /* 페이지 배경 */
  --color-bg-light:  #F9F9F7;   /* 섹션 배경 (연한 베이지) */
  --color-tag-bg:    #F0F0EE;   /* 태그/배지 배경 */

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Source Serif 4', Georgia, serif;
  --font-ui:      'DM Sans', system-ui, sans-serif;

  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-full: 999px;

  --shadow-card: 0 2px 16px rgba(0,0,0,0.07);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.13);

  --max-width: 1140px;
  --nav-height: 60px;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-body);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ── Layout ── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navigation ── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  height: var(--nav-height);
}

.site-nav .container {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 100%;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.nav-menu a {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-body);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: background 0.2s, color 0.2s;
}

.nav-menu a:hover { background: var(--color-tag-bg); color: var(--color-dark); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

.nav-search-btn {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--color-body);
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 4px;
}

.btn-primary {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  display: inline-block;
}

.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }

/* ── Mobile Menu Toggle ── */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: transform 0.3s;
}

/* ── Hero Section ── */
.hero {
  text-align: center;
  padding: 60px 24px 48px;
  border-bottom: 1px solid var(--color-border);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.2;
  letter-spacing: -1px;
  max-width: 620px;
  margin: 0 auto 16px;
}

.hero-desc {
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  color: var(--color-muted);
  max-width: 400px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

/* ── Featured Posts Grid (Hero) ── */
.featured-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  grid-template-rows: auto auto;
  gap: 20px;
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: left;
}

/* 중앙 큰 카드 */
.featured-grid .card--hero {
  grid-column: 2;
  grid-row: 1 / 3;
}

/* 좌측 상단 */
.featured-grid .card--sm:nth-child(1) { grid-column: 1; grid-row: 1; }
/* 좌측 하단 */
.featured-grid .card--sm:nth-child(2) { grid-column: 1; grid-row: 2; }
/* 우측 상단 */
.featured-grid .card--sm:nth-child(3) { grid-column: 3; grid-row: 1; }
/* 우측 하단 */
.featured-grid .card--sm:nth-child(4) { grid-column: 3; grid-row: 2; }

/* ── Card Base ── */
.card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
  transition: box-shadow 0.25s, transform 0.25s;
}

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

.card__img-wrap {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-border);
}

.card__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card:hover .card__img-wrap img { transform: scale(1.04); }

/* Play button overlay for video posts */
.card__play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.card__play-btn {
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.18);
}

.card__play-btn svg { margin-left: 3px; }

/* Small card image */
.card--sm .card__img-wrap { height: 140px; margin-bottom: 10px; }

/* Hero card */
.card--hero .card__img-wrap { height: 320px; margin-bottom: 14px; }

/* ── Card Meta ── */
.card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.badge {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--color-tag-bg);
  color: var(--color-dark);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  letter-spacing: 0.01em;
}

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

.card__date {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--color-muted);
}

.card__title {
  font-family: var(--font-display);
  color: var(--color-dark);
  line-height: 1.3;
  letter-spacing: -0.3px;
}

.card--sm .card__title { font-size: 1rem; font-weight: 600; }
.card--hero .card__title { font-size: 1.5rem; font-weight: 700; margin-bottom: 8px; }

.card__excerpt {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-body);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}

.card__author {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.card__author span { color: var(--color-dark); font-weight: 500; }

/* ── Category Section ── */
.category-section {
  padding: 48px 0 24px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: -0.5px;
}

.btn-view-all {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  background: var(--color-primary);
  color: #fff;
  padding: 7px 18px;
  border-radius: var(--radius-full);
  transition: opacity 0.2s;
}

.btn-view-all:hover { opacity: 0.85; }

/* 3-column grid for category sections */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.posts-grid .card__img-wrap { height: 200px; margin-bottom: 12px; }
.posts-grid .card__title { font-size: 1rem; }

/* ── Single Post Page ── */
.post-page { padding: 40px 0 80px; }

.post-page .container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: start;
}

/* Sidebar */
.post-sidebar { position: sticky; top: calc(var(--nav-height) + 24px); }

.author-card { margin-bottom: 36px; }

.author-card__avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 12px;
  background: var(--color-border);
}

.author-card__name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.author-card__bio {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: 10px;
}

.author-social { display: flex; gap: 10px; }
.author-social a { color: var(--color-muted); transition: color 0.2s; }
.author-social a:hover { color: var(--color-dark); }

.sidebar-section { margin-bottom: 32px; }
.sidebar-section-title {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: 14px;
}

/* Featured posts list in sidebar */
.sidebar-post {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-post:last-child { border-bottom: none; }

.sidebar-post__img {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-border);
}

.sidebar-post__img img { width: 100%; height: 100%; object-fit: cover; }

.sidebar-post__title {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-dark);
  line-height: 1.4;
  transition: color 0.2s;
}

.sidebar-post__title:hover { color: var(--color-primary); }

/* Topic tags in sidebar */
.topic-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.topic-tag {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 500;
  background: var(--color-tag-bg);
  color: var(--color-dark);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  transition: background 0.2s;
}

.topic-tag:hover { background: var(--color-primary); color: #fff; }

/* Post Content */
.post-content-wrap {}

.post-header { margin-bottom: 32px; }

.post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.post-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.post-excerpt {
  font-size: 1.0625rem;
  color: var(--color-muted);
  line-height: 1.7;
}

.post-featured-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 32px;
  max-height: 480px;
}

.post-featured-img img { width: 100%; height: 100%; object-fit: cover; }

/* Prose content styles */
.post-body { font-size: 1rem; line-height: 1.8; color: var(--color-body); }

.post-body h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  margin: 2em 0 0.75em;
  letter-spacing: -0.3px;
}

.post-body h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-dark);
  margin: 1.5em 0 0.5em;
}

.post-body p { margin-bottom: 1.25em; }

.post-body ul, .post-body ol {
  padding-left: 1.5em;
  margin-bottom: 1.25em;
}

.post-body li { margin-bottom: 0.4em; }

.post-body img {
  border-radius: var(--radius-md);
  margin: 1.5em 0;
}

.post-body a { color: var(--color-primary); border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.post-body a:hover { border-color: var(--color-primary); }

/* Blockquote */
.post-body blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 16px 24px;
  margin: 2em 0;
  background: var(--color-bg-light);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  font-size: 1.125rem;
  color: var(--color-dark);
  line-height: 1.7;
}

/* Share buttons */
.post-share { display: flex; gap: 10px; margin: 32px 0; flex-wrap: wrap; }
.share-btn {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-body);
  transition: border-color 0.2s, background 0.2s;
}

.share-btn:hover { border-color: var(--color-dark); background: var(--color-tag-bg); }

/* Post navigation (prev/next) */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 40px 0;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.post-nav__item {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: box-shadow 0.2s;
}

.post-nav__item:hover { box-shadow: var(--shadow-card); }
.post-nav__item--next { justify-content: flex-end; text-align: right; }

.post-nav__img {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-border);
}

.post-nav__img img { width: 100%; height: 100%; object-fit: cover; }

.post-nav__label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-bottom: 4px;
}

.post-nav__title {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-dark);
  line-height: 1.4;
}

/* Comments button */
.btn-comments {
  display: block;
  margin: 0 auto 40px;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn-comments:hover { opacity: 0.85; }

/* ── Authors Section ── */
.authors-teaser { padding: 48px 0; border-top: 1px solid var(--color-border); }
.authors-teaser-inner { display: flex; align-items: center; gap: 24px; }
.authors-teaser-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-dark);
}

.authors-avatars { display: flex; }
.authors-avatars img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 3px solid var(--color-bg);
  margin-left: -12px;
  object-fit: cover;
}

.authors-avatars img:first-child { margin-left: 0; }

/* ── Footer ── */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 48px 0 24px;
  margin-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.footer-desc {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.footer-social { display: flex; gap: 14px; }
.footer-social a { color: var(--color-muted); transition: color 0.2s; }
.footer-social a:hover { color: var(--color-dark); }

.footer-title {
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
}

/* Recent posts in footer */
.footer-post { display: flex; gap: 12px; margin-bottom: 14px; }
.footer-post__img {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-border);
}

.footer-post__img img { width: 100%; height: 100%; object-fit: cover; }

.footer-post__meta {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-bottom: 3px;
}

.footer-post__title {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-dark);
  line-height: 1.4;
  transition: color 0.2s;
}

.footer-post__title:hover { color: var(--color-primary); }

/* Newsletter */
.newsletter-title {
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.newsletter-desc {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.newsletter-form { display: flex; gap: 8px; }

.newsletter-input {
  flex: 1;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 9px 16px;
  outline: none;
  transition: border-color 0.2s;
}

.newsletter-input:focus { border-color: var(--color-primary); }

.newsletter-btn {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 9px 20px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.newsletter-btn:hover { opacity: 0.85; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

/* ── List Page ── */
.list-page { padding: 48px 0; }

.list-header { margin-bottom: 40px; }

.list-title {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.list-desc {
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.list-grid .card__img-wrap { height: 200px; margin-bottom: 14px; }
.list-grid .card__title { font-size: 1.0625rem; }

/* ── Pagination ── */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 40px 0;
}

.pagination a, .pagination span {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-body);
  transition: all 0.2s;
}

.pagination a:hover { border-color: var(--color-dark); }
.pagination .active { background: var(--color-dark); color: #fff; border-color: var(--color-dark); }

/* ── Search Modal ── */
.search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  align-items: flex-start;
  justify-content: center;
  padding-top: 80px;
}

.search-overlay.active { display: flex; }

.search-box {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  width: 100%;
  max-width: 560px;
  box-shadow: var(--shadow-hover);
}

.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
}

.search-input {
  flex: 1;
  font-family: var(--font-ui);
  font-size: 1rem;
  border: none;
  outline: none;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .featured-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto auto;
  }

  .featured-grid .card--hero {
    grid-column: 1 / 3;
    grid-row: 1;
  }

  .featured-grid .card--sm:nth-child(1) { grid-column: 1; grid-row: 2; }
  .featured-grid .card--sm:nth-child(2) { grid-column: 2; grid-row: 2; }
  .featured-grid .card--sm:nth-child(3) { grid-column: 1; grid-row: 3; }
  .featured-grid .card--sm:nth-child(4) { grid-column: 2; grid-row: 3; }

  .posts-grid { grid-template-columns: repeat(2, 1fr); }
  .list-grid { grid-template-columns: repeat(2, 1fr); }

  .post-page .container {
    grid-template-columns: 1fr;
  }

  .post-sidebar { position: static; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 600px) {
  .nav-menu { display: none; }
  .nav-menu.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 24px;
    gap: 4px;
  }

  .nav-toggle { display: flex; }

  .featured-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .featured-grid .card--hero { grid-column: 1; grid-row: 1; }
  .featured-grid .card--sm:nth-child(n) { grid-column: 1; grid-row: auto; }

  .posts-grid { grid-template-columns: 1fr; }
  .list-grid { grid-template-columns: 1fr; }
  .post-nav { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}