/* ============================================================
   NODE — Components
   ============================================================ */

/* ---------- Top GNB ---------- */
.gnb {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: saturate(150%) blur(14px);
  background: color-mix(in oklch, var(--bg-0) 82%, transparent);
  border-bottom: 1px solid var(--bd-1);
}
.gnb-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-6);
  height: 60px;
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}
.wordmark {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: var(--ls-en);
  color: var(--fg-0);
}
.gnb-cat {
  display: flex;
  gap: var(--sp-1);
  margin-left: var(--sp-4);
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}
.gnb-cat::-webkit-scrollbar { display: none; }
.gnb-cat-item {
  position: relative;
  padding: 8px 12px;
  border-radius: var(--r-sm);
  font-size: 14px;
  color: var(--fg-2);
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.gnb-cat-item:hover { color: var(--fg-0); background: var(--bg-1); }
.gnb-cat-item.is-active { color: var(--fg-0); background: var(--bg-1); }
.gnb-cat-item.is-active::after {
  content: '';
  position: absolute;
  left: 12px; right: 12px; bottom: -1px;
  height: 2px;
  background: var(--pr);
  border-radius: 2px;
}
.gnb-util {
  display: flex;
  gap: var(--sp-1);
  margin-left: auto;
  align-items: center;
}
.icon-btn {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--bd-1);
  background: transparent;
  border-radius: var(--r-sm);
  color: var(--fg-1);
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
}
.icon-btn:hover { color: var(--fg-0); border-color: var(--bd-2); background: var(--bg-1); }

/* ---------- Category tab bar ---------- */
.tabbar {
  display: flex;
  gap: var(--sp-1);
  padding: var(--sp-1);
  background: var(--bg-1);
  border: 1px solid var(--bd-1);
  border-radius: var(--r-pill);
  width: fit-content;
}
.tab {
  position: relative;
  padding: 10px 16px;
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-2);
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
  border: 0;
  background: transparent;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: var(--ls-body);
}
.tab:hover { color: var(--fg-0); }

/* Active state — the fix: explicit fg-on-pr token, never #fff */
.tab.is-active {
  background: var(--pr);
  color: var(--pr-on);
  box-shadow: 0 1px 2px oklch(0 0 0 / 0.2);
}
.tab .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.7;
}
.tab.is-active .dot { opacity: 1; }

/* ---------- Category badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 8px;
  border-radius: var(--r-pill);
  font-size: 12px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: var(--ls-body);
  white-space: nowrap;
}
.badge-marker {
  display: inline-block;
  width: 8px; height: 8px;
  flex-shrink: 0;
}
/* Shape discriminators — colorblind-safe */
.marker-circle { border-radius: 50%; background: currentColor; }
.marker-square { background: currentColor; border-radius: 1px; }
.marker-diamond { background: currentColor; transform: rotate(45deg) scale(0.72); border-radius: 1px; }
.marker-triangle {
  width: 0; height: 0; background: transparent;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 8px solid currentColor;
}
.marker-pin {
  width: 8px; height: 8px; border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 2px color-mix(in oklch, currentColor 20%, transparent);
}

.badge-news    { background: var(--cat-news-bg);    color: var(--cat-news-fg); }
.badge-note    { background: var(--cat-note-bg);    color: var(--cat-note-fg); }
.badge-field   { background: var(--cat-field-bg);   color: var(--cat-field-fg); }
.badge-trend   { background: var(--cat-trend-bg);   color: var(--cat-trend-fg); }
.badge-ai      { background: var(--cat-ai-bg);      color: var(--cat-ai-fg); }
.badge-daily   { background: var(--cat-daily-bg);   color: var(--cat-daily-fg); }

/* Alt style: underline */
.badge[data-style='underline'] {
  background: transparent;
  padding: 4px 2px;
  border-radius: 0;
  border-bottom: 2px solid currentColor;
}
.badge[data-style='underline'] .badge-marker { display: none; }

/* Alt style: dot only */
.badge[data-style='dot'] {
  background: transparent;
  padding: 4px 2px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: var(--ls-body);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
  line-height: 1;
  font-family: inherit;
}
.btn-primary {
  background: var(--pr);
  color: var(--pr-on);
}
.btn-primary:hover { background: var(--pr-hover); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--fg-0);
  border-color: var(--bd-2);
}
.btn-ghost:hover { background: var(--bg-1); border-color: var(--bd-strong); }
.btn-sm { padding: 8px 14px; font-size: 13px; }

/* ---------- Article row (list density: comfortable) ---------- */
.article-list { display: flex; flex-direction: column; }
.article-row {
  display: grid;
  grid-template-columns: 120px 1fr 140px;
  gap: var(--sp-6);
  padding: var(--sp-6) 0;
  border-top: 1px solid var(--bd-1);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease);
  align-items: start;
}
.article-row:first-child { border-top: 0; }
.article-row:hover { background: var(--bg-1); }
.article-row:hover .article-title { color: var(--pr); }
.article-row:hover { padding-left: var(--sp-3); padding-right: var(--sp-3); margin-left: calc(-1 * var(--sp-3)); margin-right: calc(-1 * var(--sp-3)); border-radius: var(--r-md); }

.article-meta {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding-top: 4px;
}
.article-date {
  font-family: var(--ff-mono);
  font-size: var(--fs-caption);
  color: var(--fg-2);
  letter-spacing: 0;
}
.article-main { min-width: 0; }
.article-title {
  font-size: var(--fs-h3);
  font-weight: 700;
  line-height: var(--lh-title);
  letter-spacing: var(--ls-title);
  color: var(--fg-0);
  margin: 0 0 8px 0;
  transition: color var(--t-fast) var(--ease);
  text-wrap: pretty;
}
.article-excerpt {
  font-size: 14.5px;
  color: var(--fg-2);
  line-height: 1.55;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-wrap: pretty;
}
.article-author {
  text-align: right;
  font-size: var(--fs-caption);
  color: var(--fg-2);
  line-height: 1.6;
  padding-top: 4px;
}
.article-author .author-label { display: block; color: var(--fg-3); font-size: var(--fs-micro); margin-bottom: 2px; }

/* ---------- Category header ---------- */
.cat-head { padding: var(--sp-10) 0 var(--sp-8); }
.cat-head-top {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
  color: var(--fg-2);
  font-size: var(--fs-caption);
  font-family: var(--ff-mono);
  letter-spacing: 0;
  margin-bottom: var(--sp-5);
}
.cat-head-top .sep { opacity: 0.5; }
.cat-title {
  font-size: var(--fs-display);
  font-weight: 800;
  letter-spacing: var(--ls-display);
  line-height: var(--lh-tight);
  color: var(--fg-0);
  margin: 0 0 var(--sp-4) 0;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-wrap: wrap;
}
.cat-desc {
  font-size: 17px;
  color: var(--fg-1);
  max-width: 62ch;
  margin: 0 0 var(--sp-7) 0;
  text-wrap: pretty;
}
.cat-stats {
  display: flex;
  gap: var(--sp-7);
  padding-top: var(--sp-5);
  border-top: 1px dashed var(--bd-1);
}
.cat-stat { display: flex; flex-direction: column; gap: 4px; }
.cat-stat-n {
  font-family: var(--ff-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--fg-0);
  letter-spacing: 0;
}
.cat-stat-l { font-size: var(--fs-caption); color: var(--fg-2); }

/* ---------- Trust strip ---------- */
.trust-strip {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: 14px 18px;
  background: var(--bg-1);
  border: 1px solid var(--bd-1);
  border-radius: var(--r-lg);
  font-size: 13.5px;
  color: var(--fg-1);
}
.trust-strip .tdot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--ok) 18%, transparent);
  animation: tdot 2s var(--ease) infinite;
  flex-shrink: 0;
}
@keyframes tdot { 0%,100% { opacity: 1 } 50% { opacity: 0.55 } }

/* ---------- Footer ---------- */
.foot {
  border-top: 1px solid var(--bd-1);
  margin-top: var(--sp-12);
  padding: var(--sp-10) 0 var(--sp-7);
  color: var(--fg-2);
}
.foot-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--sp-7);
}
.foot-brand .wm {
  font-size: 28px; font-weight: 800; color: var(--pr);
  letter-spacing: var(--ls-en);
}
.foot-brand .tag { margin-top: 6px; font-size: 14px; color: var(--fg-2); }
.foot-links { display: flex; flex-direction: column; gap: 12px; text-align: right; }
.foot-links a { font-size: 14px; color: var(--fg-1); }
.foot-links a:hover { color: var(--pr); }
.foot-bot {
  display: flex; justify-content: space-between;
  margin-top: var(--sp-8);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--bd-1);
  font-size: 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .gnb-inner { padding: 0 var(--sp-4); gap: var(--sp-3); }
  .gnb-cat { margin-left: 0; }
  .container { padding: 0 var(--sp-4); }
  .cat-head { padding: var(--sp-7) 0 var(--sp-6); }
  .cat-title { font-size: 30px; }
  .cat-desc { font-size: 15.5px; }
  .cat-stats { gap: var(--sp-5); flex-wrap: wrap; }
  .article-row {
    grid-template-columns: 1fr;
    gap: var(--sp-2);
    padding: var(--sp-5) 0;
  }
  .article-row:hover { padding-left: 0; margin-left: 0; padding-right: 0; margin-right: 0; border-radius: 0; }
  .article-meta { flex-direction: row; align-items: center; gap: var(--sp-2); }
  .article-author { display: none; }
  .article-title { font-size: 17px; }
  .tabbar { width: 100%; overflow-x: auto; border-radius: var(--r-md); padding: 6px; }
  .tab { padding: 8px 12px; font-size: 13px; }
  .foot-grid { grid-template-columns: 1fr; }
  .foot-links { text-align: left; flex-direction: row; flex-wrap: wrap; gap: var(--sp-4); }
  .foot-bot { flex-direction: column; gap: 8px; }
}