/* ============================================================
   Saju Pan · Column reskin (C-ink tone)
   Matches ACTUAL production PHP output classes.

   HUB  (column/index.php):
     .header .header-logo .logo-text .logo-accent
     .tab-bar .tab .tab--active
     .column-page
     .column-hero h1/p
     .cat-tabs .cat-tab .cat-tab--active
     .column-grid
     .column-card .column-card-img .column-card-body
       .column-card-cat .column-card-title .column-card-desc .column-card-meta
     .pagination a/span .current

   VIEW (column/view.php):
     .article-page article
     .article-header .article-cat .article-title .article-meta (span×3)
     .article-featured (img)
     .article-body h2/p
     .article-tags .article-tag
     .share-row .btn-ghost
     .article-author .author-avatar .author-name .author-label
     .cta-box p/a
     .related h3 .related-list .related-item .related-item-title .related-item-desc

   Depends on:   shared/tokens.css, C-ink/style.css
   No new classes. CSS-only replacement → drop <link> into PHP <head>
                   after /sajulab/css/common.css to override the inline <style>.
   ============================================================ */

/* =========================================================
   0 · Root tokens — fallback if tokens.css isn't loaded
       Matches existing PHP inline-style variable names:
         --gold, --text, --text-muted, --text-dim,
         --card, --border-purple, --white, --purple, --gold-dark
   ========================================================= */
:root{
  /* C-ink palette — light paper aesthetic */
  --C-paper:   #faf8f3;
  --C-paper-2: #f3efe4;
  --C-paper-3: #e8e2d2;
  --C-ink:     #1a1612;
  --C-ink-2:   #3a3228;
  --C-ink-3:   #6b6356;
  --C-line:    rgba(26, 22, 18, 0.10);
  --C-line-2:  rgba(26, 22, 18, 0.20);
  --C-gold:    #b8860b;
  --C-gold-2:  #d97706;
  --C-seal:    #a83232;

  --font-serif-kr: "Noto Serif KR", "Nanum Myeongjo", serif;
  --font-serif-en: "EB Garamond", "Georgia", serif;
  --font-sans-kr:  "Pretendard Variable", "Pretendard", -apple-system, sans-serif;
  --font-mono:     "JetBrains Mono", ui-monospace, monospace;

  /* Override the PHP inline-<style>'s color vars so that block
     falls in line with the C-ink tone without editing PHP */
  --gold:           var(--C-gold);
  --gold-dark:      var(--C-gold-2);
  --text:           var(--C-ink);
  --text-muted:     var(--C-ink-3);
  --text-dim:       var(--C-ink-3);
  --white:          var(--C-ink);
  --card:           var(--C-paper);
  --border-purple:  var(--C-line);
  --purple:         var(--C-gold);
}

/* =========================================================
   1 · Base — body, fonts, paper bg
   ========================================================= */
html, body{
  background: var(--C-paper);
  color: var(--C-ink);
  font-family: var(--font-sans-kr);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body{ margin: 0; }

a{ color: inherit; }

/* Subtle paper grain — layered noise for C-ink feel */
body::before{
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(184,134,11,0.04) 0, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(168,50,50,0.03) 0, transparent 45%);
}

/* Anything interactive must sit above grain */
.header, main, footer{ position: relative; z-index: 1; }

/* =========================================================
   2 · HEADER — .header + .tab-bar
   ========================================================= */
.header{
  position: sticky; top: 0; z-index: 40;
  background: rgba(250, 248, 243, 0.92);
  backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid var(--C-line);
  padding: 14px 20px 10px;
  display: flex; flex-direction: column;
  gap: 10px;
  align-items: stretch;
}
@media (min-width: 768px){
  .header{
    flex-direction: row; align-items: center; justify-content: space-between;
    padding: 14px 32px;
    gap: 24px;
  }
}

.header-logo{
  display: inline-flex; align-items: baseline;
  text-decoration: none;
  color: var(--C-ink);
}
.logo-text{
  font-family: var(--font-serif-kr);
  font-weight: 500;
  font-size: 19px;
  letter-spacing: -0.01em;
  line-height: 1;
}
.logo-accent{
  color: var(--C-gold);
  font-family: var(--font-serif-en);
  font-style: italic;
  font-weight: 500;
  margin-left: 2px;
}

/* Tab bar — scrollable on mobile, flex row on desktop */
.tab-bar{
  display: flex; align-items: center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  margin: 0 -20px;
  padding: 0 20px;
}
.tab-bar::-webkit-scrollbar{ display: none; }

.tab{
  flex: 0 0 auto;
  padding: 8px 14px;
  font-family: var(--font-serif-kr);
  font-size: 13px;
  font-weight: 400;
  color: var(--C-ink-3);
  text-decoration: none;
  border-radius: 2px;
  white-space: nowrap;
  transition: color 140ms ease;
  position: relative;
  letter-spacing: -0.005em;
}
.tab:hover{ color: var(--C-ink); }
.tab--active{
  color: var(--C-ink);
  font-weight: 500;
}
.tab--active::after{
  content: "";
  position: absolute; left: 14px; right: 14px; bottom: 2px;
  height: 1px;
  background: var(--C-gold);
}

@media (min-width: 768px){
  .tab-bar{ gap: 6px; margin: 0; padding: 0; overflow: visible; }
  .tab{ padding: 10px 16px; font-size: 14px; }
}

/* =========================================================
   3 · HUB — .column-page wrapper
   ========================================================= */
.column-page{
  max-width: 1080px;   /* override inline 720 — editorial grid */
  margin: 0 auto;
  padding: 32px 20px 80px;
  box-sizing: border-box;
}
@media (min-width: 768px){
  .column-page{ padding: 56px 32px 96px; }
}

/* =========================================================
   4 · HUB — .column-hero
   ========================================================= */
.column-hero{
  text-align: left;
  padding: 20px 0 40px;
  border-bottom: 1px solid var(--C-line);
  margin-bottom: 32px;
}
.column-hero h1{
  font-family: var(--font-serif-kr);
  font-weight: 300;
  font-size: clamp(32px, 5.4vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--C-ink);
  margin: 0 0 14px;
  text-wrap: balance;
  background: none !important;
  -webkit-text-fill-color: var(--C-ink);
}
.column-hero h1::before{
  content: "COLUMN";
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--C-gold);
  margin-bottom: 16px;
  font-weight: 500;
}
.column-hero p{
  font-family: var(--font-serif-kr);
  font-size: 16px;
  line-height: 1.7;
  color: var(--C-ink-2);
  max-width: 640px;
  margin: 0;
  text-wrap: pretty;
}
@media (min-width: 768px){
  .column-hero{ padding: 32px 0 56px; margin-bottom: 40px; }
  .column-hero p{ font-size: 17px; }
}

/* =========================================================
   5 · HUB — .cat-tabs (카테고리 필터)
   ========================================================= */
.cat-tabs{
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 0 24px;
  border-bottom: 1px solid var(--C-line);
  margin-bottom: 24px;
  margin-left: 0; margin-right: 0;
}
.cat-tabs::-webkit-scrollbar{ display: none; }

.cat-tab{
  flex: 0 0 auto;
  display: inline-flex; align-items: center;
  height: 34px;
  padding: 0 16px;
  font-family: var(--font-serif-kr);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: -0.005em;
  color: var(--C-ink-3);
  text-decoration: none;
  background: transparent;
  border: 1px solid var(--C-line-2);
  border-radius: 2px;
  white-space: nowrap;
  transition: all 140ms ease;
}
.cat-tab:hover{
  color: var(--C-ink);
  border-color: var(--C-ink);
}
.cat-tab--active{
  color: var(--C-paper);
  background: var(--C-ink);
  border-color: var(--C-ink);
  font-weight: 500;
}

/* =========================================================
   6 · HUB — .column-grid + .column-card
   ========================================================= */
.column-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px 0;
  flex-direction: initial;   /* override inline flex */
  margin-bottom: 40px;
}
@media (min-width: 640px){
  .column-grid{
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 24px;
  }
}
@media (min-width: 960px){
  .column-grid{
    grid-template-columns: repeat(3, 1fr);
    gap: 40px 28px;
  }
}

.column-card{
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--C-ink);
  background: transparent;
  border: 0;
  border-radius: 0;
  overflow: visible;
  transform: none !important;
  transition: none;
  position: relative;
}

/* Reset PHP's inline hover — we use image + title shift instead */
.column-card:hover{
  border-color: transparent;
  transform: none;
}

.column-card-img{
  width: 100%;
  height: 240px;
  object-fit: cover;
  background: var(--C-paper-2);
  border: 1px solid var(--C-line);
  border-radius: 0;
  display: block;
  filter: saturate(0.85) contrast(1.02);
  transition: filter 300ms ease, transform 400ms ease;
}
.column-card:hover .column-card-img{
  filter: saturate(1) contrast(1.04);
}
@media (min-width: 640px){
  .column-card-img{ height: 220px; }
}

.column-card-body{
  padding: 18px 0 0;
  background: transparent;
}

.column-card-cat{
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--C-gold);
  margin: 0 0 12px;
  font-weight: 500;
}
.column-card-cat::before{
  content: "";
  width: 18px; height: 1px; background: var(--C-gold);
}

.column-card-title{
  font-family: var(--font-serif-kr);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.36;
  letter-spacing: -0.015em;
  color: var(--C-ink);
  margin: 0 0 10px;
  text-wrap: balance;
  /* 3-line clamp for rhythm */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 140ms ease;
}
.column-card:hover .column-card-title{ color: var(--C-gold-2); }

.column-card-desc{
  font-family: var(--font-sans-kr);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--C-ink-3);
  margin: 0 0 14px;
  text-wrap: pretty;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.column-card-meta{
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--C-ink-3);
  text-transform: uppercase;
  margin: 0;
}

/* =========================================================
   7 · HUB — .pagination
   ========================================================= */
.pagination{
  display: flex; justify-content: center; align-items: center;
  gap: 4px;
  margin: 48px 0 24px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 12px;
}
.pagination a,
.pagination span{
  min-width: 36px; height: 36px;
  padding: 0 12px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--C-ink-2);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 2px;
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: all 140ms ease;
}
.pagination a:hover{
  border-color: var(--C-ink);
  color: var(--C-ink);
}
.pagination .current{
  background: var(--C-ink);
  color: var(--C-paper);
  border-color: var(--C-ink);
  font-weight: 500;
}
/* "다음", "이전" text anchors */
.pagination a:not([href*="?page="]),
.pagination a[href$="=2"]:last-child{
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0;
}

/* =========================================================
   8 · VIEW — .article-page wrapper
   ========================================================= */
.article-page{
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 96px;
  box-sizing: border-box;
}
@media (min-width: 768px){
  .article-page{ max-width: 760px; padding: 56px 32px 120px; }
}

/* =========================================================
   9 · VIEW — .article-header
   ========================================================= */
.article-header{
  margin-bottom: 36px;
  padding-bottom: 4px;
}

.article-cat{
  display: inline-flex; align-items: center; gap: 10px;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--C-gold);
  margin: 0 0 20px;
  font-weight: 500;
}
.article-cat::before{
  content: "";
  width: 22px; height: 1px; background: var(--C-gold);
  display: inline-block;
}

.article-title{
  font-family: var(--font-serif-kr);
  font-weight: 300;
  font-size: clamp(28px, 4.8vw, 48px);
  line-height: 1.15;
  letter-spacing: -0.028em;
  color: var(--C-ink);
  margin: 0 0 22px;
  text-wrap: balance;
}

.article-meta{
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--C-ink-3);
  text-transform: uppercase;
  margin: 0;
}
.article-meta span{ display: inline; }
.article-meta span + span::before{
  content: " · ";
  color: var(--C-line-2);
  margin: 0 2px;
}
.article-meta span:first-child{
  font-family: var(--font-serif-kr);
  font-size: 12px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--C-ink);
  font-weight: 500;
}

/* =========================================================
   10 · VIEW — .article-featured (대표 이미지)
   ========================================================= */
.article-featured{
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  border: 1px solid var(--C-line);
  border-radius: 0;
  background: var(--C-paper-2);
  margin: 0 0 36px;
  object-fit: cover;
}
@media (min-width: 768px){
  .article-featured{ margin: 0 0 48px; }
}

/* =========================================================
   11 · VIEW — .article-body
   ========================================================= */
.article-body{
  font-family: var(--font-serif-kr);
  font-size: 17px;
  line-height: 1.88;
  color: var(--C-ink);
  letter-spacing: -0.005em;
}
@media (min-width: 768px){
  .article-body{ font-size: 18px; line-height: 1.9; }
}

.article-body h2{
  font-family: var(--font-serif-kr);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.32;
  letter-spacing: -0.018em;
  color: var(--C-ink);
  margin: 2.4em 0 0.7em;
  padding: 1.2em 0 0;
  padding-left: 0 !important;
  border-left: 0 !important;
  border-top: 1px solid var(--C-line);
  text-wrap: balance;
}
.article-body h2:first-child{
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}
@media (min-width: 768px){
  .article-body h2{ font-size: 26px; }
}

.article-body h3{
  font-family: var(--font-serif-kr);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.38;
  color: var(--C-ink);
  margin: 1.8em 0 0.4em;
}

.article-body p{
  margin: 0 0 1.1em;
  text-wrap: pretty;
}
.article-body p:last-child{ margin-bottom: 0; }

.article-body strong{ font-weight: 600; color: var(--C-ink); }
.article-body em{
  font-family: var(--font-serif-en);
  font-style: italic;
  color: var(--C-ink);
}

.article-body a{
  color: var(--C-ink);
  text-decoration: underline;
  text-decoration-color: var(--C-gold);
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  transition: color 140ms ease;
}
.article-body a:hover{ color: var(--C-gold-2); }

.article-body blockquote{
  margin: 1.6em 0;
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--C-gold);
  font-family: var(--font-serif-kr);
  font-size: 18px;
  line-height: 1.7;
  color: var(--C-ink-2);
  font-style: normal;
}
.article-body blockquote p{ margin: 0; }

.article-body ul,
.article-body ol{ margin: 0 0 1.2em; padding-left: 22px; }
.article-body li{ margin: 0.3em 0; }
.article-body ul li::marker{ color: var(--C-gold); }

.article-body img{
  display: block;
  max-width: 100%; height: auto;
  margin: 1.6em auto;
  border: 1px solid var(--C-line);
}

.article-body hr{
  border: 0; height: 1px; background: var(--C-line);
  margin: 2.4em auto;
  width: 120px;
}

/* =========================================================
   12 · VIEW — .article-tags / .article-tag
   ========================================================= */
.article-tags{
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 40px 0;
  padding-top: 32px;
  border-top: 1px solid var(--C-line);
}
.article-tag{
  display: inline-flex; align-items: center;
  height: 26px;
  padding: 0 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--C-ink-2);
  background: transparent;
  border: 1px solid var(--C-line-2);
  border-radius: 2px;
  text-transform: none;
  text-decoration: none;
  transition: all 140ms ease;
}
/* PHP already renders "#..." inside .article-tag, so don't inject */
.article-tag:hover{
  border-color: var(--C-ink);
  color: var(--C-ink);
}

/* =========================================================
   13 · VIEW — .share-row + .btn-ghost
   ========================================================= */
.share-row{
  display: flex; gap: 8px;
  margin: 8px 0 32px;
}
.btn-ghost{
  flex: 1;
  padding: 12px 16px;
  background: transparent;
  border: 1px solid var(--C-line-2);
  border-radius: 2px;
  color: var(--C-ink-2);
  font-family: var(--font-serif-kr);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.005em;
  cursor: pointer;
  transition: all 140ms ease;
}
.btn-ghost:hover{
  border-color: var(--C-ink);
  color: var(--C-ink);
  background: rgba(26,22,18,0.03);
}
.btn-ghost.copied{
  border-color: var(--C-gold);
  color: var(--C-gold);
}

/* =========================================================
   14 · VIEW — .article-author
   ========================================================= */
.article-author{
  display: flex; align-items: center; gap: 14px;
  padding: 20px 0;
  margin-top: 32px;
  background: transparent;
  border-top: 1px solid var(--C-line);
  border-bottom: 1px solid var(--C-line);
  border-radius: 0;
}
.author-avatar{
  width: 44px; height: 44px;
  flex: 0 0 44px;
  border-radius: 50%;
  background: var(--C-ink);
  color: var(--C-paper);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-serif-kr);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: 0;
}
.author-name{
  font-family: var(--font-serif-kr);
  font-size: 14px;
  font-weight: 500;
  color: var(--C-ink);
  line-height: 1.3;
  letter-spacing: -0.005em;
}
.author-label{
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--C-ink-3);
  margin-top: 3px;
}

/* =========================================================
   15 · VIEW — .cta-box
   ========================================================= */
.cta-box{
  text-align: center;
  padding: 40px 24px;
  margin: 40px 0;
  background: var(--C-paper-2);
  border: 1px solid var(--C-line);
  border-top: 2px solid var(--C-gold);
  border-radius: 0;
}
.cta-box p{
  font-family: var(--font-serif-kr);
  font-size: 20px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--C-ink);
  margin: 0 0 18px;
  letter-spacing: -0.015em;
}
.cta-box p::after{
  content: "";
  display: block;
  width: 24px; height: 1px;
  background: var(--C-gold);
  margin: 16px auto 0;
}
.cta-box a{
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px;
  background: var(--C-ink);
  color: var(--C-paper);
  font-family: var(--font-serif-kr);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: -0.005em;
  border-radius: 2px;
  text-decoration: none;
  transition: background 140ms ease;
}
.cta-box a::after{
  content: "→";
  font-family: var(--font-serif-en);
  font-style: italic;
}
.cta-box a:hover{ background: var(--C-gold-2); }

@media (min-width: 768px){
  .cta-box{ padding: 52px 32px; margin: 56px 0; }
  .cta-box p{ font-size: 22px; }
}

/* =========================================================
   16 · VIEW — .related
   ========================================================= */
.related{
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--C-line);
}
.related h3{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--C-ink-3);
  font-weight: 500;
  margin: 0 0 24px;
  display: inline-flex; align-items: center; gap: 10px;
}
.related h3::before{
  content: "";
  width: 18px; height: 1px; background: var(--C-gold);
}

.related-list{
  display: flex; flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--C-line);
}

.related-item{
  display: block;
  padding: 20px 0;
  border: 0;
  border-bottom: 1px solid var(--C-line);
  border-radius: 0;
  background: transparent;
  text-decoration: none;
  color: var(--C-ink);
  transition: padding 180ms ease;
}
.related-item:hover{
  border-color: var(--C-line);
  background: rgba(26,22,18,0.025);
  padding-left: 12px;
}

.related-item-title{
  font-family: var(--font-serif-kr);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--C-ink);
  margin: 0 0 6px;
  text-wrap: balance;
  transition: color 140ms ease;
}
.related-item:hover .related-item-title{ color: var(--C-gold-2); }

.related-item-desc{
  font-family: var(--font-sans-kr);
  font-size: 13px;
  line-height: 1.55;
  color: var(--C-ink-3);
  margin: 0;
  text-wrap: pretty;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* =========================================================
   17 · Empty state (if PHP renders it)
   ========================================================= */
.empty-state{
  text-align: center;
  padding: 80px 24px;
  color: var(--C-ink-3);
  font-family: var(--font-serif-kr);
  font-size: 15px;
  line-height: 1.6;
}
