:root {
  --paper: #080b0f;
  --sheet: #0e141b;
  --sheet-raised: #141d27;
  --sheet-hover: #1a2532;
  --ink: #eff4f8;
  --ink-dim: #b0c0cf;
  --mute: #8294a5;
  --rule: #222d39;
  --rule-subtle: rgba(255, 255, 255, 0.08);
  --rule-bold: #334455;
  --live: #3fb950;
  --live-soft: rgba(63, 185, 80, 0.12);
  --accent: #58a6ff;
  --accent-soft: rgba(88, 166, 255, 0.12);
  --heat: #ff7b72;
  --heat-soft: rgba(255, 123, 114, 0.12);
  --gold: #e3b341;
  --gold-soft: rgba(227, 179, 65, 0.14);
  --focus: #79c0ff;
  --danger: #f85149;
  --font-ui: "IBM Plex Sans KR", system-ui, sans-serif;
  --radius-xs: 3px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.35);
  --transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

html[data-theme="light"] {
  color-scheme: light;
  --paper: #f4f6f8;
  --sheet: #ffffff;
  --sheet-raised: #f8fafc;
  --sheet-hover: #eef2f6;
  --ink: #1b232a;
  --ink-dim: #44515d;
  --mute: #627282;
  --rule: #d2dae2;
  --rule-subtle: rgba(0, 0, 0, 0.06);
  --rule-bold: #b6c2ce;
  --live: #1a7f37;
  --live-soft: rgba(26, 127, 55, 0.08);
  --accent: #0969da;
  --accent-soft: rgba(9, 105, 218, 0.08);
  --heat: #cf222e;
  --heat-soft: rgba(207, 34, 46, 0.08);
  --gold: #9a6700;
  --gold-soft: rgba(154, 103, 0, 0.08);
  --focus: #0969da;
  --danger: #cf222e;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
  font-family: var(--font-ui);
  font-size: calc(100% + 2pt);
  overflow-x: clip;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 1.02rem;
  line-height: 1.55;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

.skip {
  position: absolute;
  left: 1rem;
  top: -3rem;
  padding: 0.4rem 0.7rem;
  background: var(--ink);
  color: var(--sheet);
  text-decoration: none;
  z-index: 100;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
}

.skip:focus {
  top: 1rem;
}

/* ==========================================================================
   로그인 인트로 뷰 (Modern Community Lounge Gateway)
   ========================================================================== */
.login-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.4rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 75% 36%, rgba(88, 166, 255, 0.16) 0%, transparent 34%),
    radial-gradient(circle at 18% 16%, rgba(129, 94, 255, 0.1) 0%, transparent 34%),
    var(--paper);
}

.login-shell {
  width: min(66rem, 100%);
}

.pass {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(20rem, 28rem) minmax(16rem, 1fr);
  align-items: stretch;
  background: var(--sheet);
  border: 1px solid var(--rule-bold);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.login-fields {
  display: grid;
  gap: 1rem;
  padding: 2.2rem 2.4rem;
  align-content: center;
}

.login-character {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  min-height: 0;
  padding: 1rem 1.2rem 0 0;
  overflow: hidden;
  isolation: isolate;
}

.login-character::before {
  position: absolute;
  z-index: -1;
  width: 70%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(88, 166, 255, 0.26) 0%, rgba(88, 166, 255, 0.05) 48%, transparent 70%);
  content: "";
}

.login-character img {
  width: min(100%, 24rem);
  height: auto;
  max-height: 28rem;
  object-fit: contain;
  object-position: bottom center;
  filter: drop-shadow(0 1rem 1.2rem rgba(0, 0, 0, 0.28));
}

.login-badge {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.2rem;
}

.brand {
  margin: 0;
  color: var(--heat);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.host {
  margin: 0;
  color: var(--mute);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

.pass h1 {
  margin: 0.2rem 0 0;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.lede {
  margin: 0.2rem 0 0.8rem;
  color: var(--mute);
  font-size: 0.86rem;
  line-height: 1.6;
  word-break: keep-all;
}

.pass label {
  display: grid;
  gap: 0.35rem;
  color: var(--ink-dim);
  font-size: 0.86rem;
  font-weight: 500;
}

input,
button,
select {
  font: inherit;
}

input[type="text"],
input[type="password"],
input[type="search"] {
  width: 100%;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--sheet-raised);
  color: var(--ink);
  padding: 0.55rem 0.75rem;
  transition: var(--transition);
}

input:focus,
button:focus-visible,
select:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-color: var(--accent);
}

.pass .login-btn {
  margin-top: 0.6rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #ffffff;
  padding: 0.65rem 1.2rem;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(88, 166, 255, 0.3);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.pass .login-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.status {
  margin: 0;
  font-size: 0.82rem;
  color: var(--mute);
}

.status.err {
  color: var(--danger);
  font-weight: 600;
}

/* ==========================================================================
   메인 레이아웃 & 상단 GNB (Masthead)
   ========================================================================== */
.board-view {
  min-height: 100vh;
}

.mast {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.2rem;
  max-width: 86rem;
  margin: 0 auto;
  padding: 0.55rem 1.2rem;
  border-bottom: 1px solid var(--rule);
  min-height: 3rem;
  background: var(--sheet);
  position: sticky;
  top: 0;
  z-index: 30;
}

.mast-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
  color: inherit;
  text-decoration: none;
  border-radius: var(--radius-xs);
}

.mast-brand:hover .brand-title {
  color: var(--accent);
}

.mast-brand:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.brand-tag {
  color: var(--heat);
  font-size: 0.86rem;
  font-weight: 700;
}

.brand-title {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--ink);
}

.mast-meta {
  color: var(--mute);
  font-size: 0.74rem;
  padding: 0.15rem 0.5rem;
  background: var(--sheet-raised);
  border-radius: var(--radius-xs);
  border: 1px solid var(--rule-subtle);
}

.listen {
  color: var(--live);
  font-size: 0.72rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
}

.mast-nav {
  display: flex;
  gap: 0.35rem;
}

.nav-link,
.control-btn,
.icon-btn,
.button-quiet {
  margin: 0;
  padding: 0.32rem 0.65rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--sheet-raised);
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-link:hover,
.control-btn:hover,
.icon-btn:hover,
.button-quiet:hover {
  background: var(--sheet-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.nav-link.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.mast-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
  margin-left: auto;
}

.locale-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.16rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--sheet-raised);
}

.locale-btn {
  display: inline-grid;
  width: 1.85rem;
  height: 1.65rem;
  margin: 0;
  padding: 0;
  border: 1px solid transparent;
  border-radius: calc(var(--radius-sm) - 0.1rem);
  background: transparent;
  color: var(--ink);
  font-size: 0.92rem;
  line-height: 1;
  place-items: center;
  cursor: pointer;
}

.locale-btn:hover,
.locale-btn:focus-visible {
  border-color: var(--accent);
  background: var(--sheet-hover);
}

.locale-btn[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent);
}

/* ==========================================================================
   우선순위 1단: 주간 핵심 브리핑 (Foldable Hero Strip)
   ========================================================================== */
/* ==========================================================================
   커뮤니티 3열 메인 레이아웃 (좌측 카테고리 / 중앙 피드 / 우측 AI 브리핑)
   ========================================================================== */
.community-layout {
  --category-rail-width: minmax(13rem, 15.5rem);
  --briefing-rail-width: minmax(18rem, 21.5rem);
  display: grid;
  grid-template-columns: var(--category-rail-width) minmax(0, 1fr) var(--briefing-rail-width);
  gap: 1.15rem;
  max-width: 86rem;
  margin: 0.9rem auto 0;
  padding: 0 1.2rem 3rem;
  align-items: start;
  transition: grid-template-columns 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.community-layout.category-rail-collapsed {
  --category-rail-width: 3.55rem;
}

.community-layout.briefing-rail-collapsed {
  --briefing-rail-width: 3.55rem;
}

/* 우측 이번 주 AI 브리핑 사이드바 위젯 */
.briefing-rail {
  position: sticky;
  top: 4rem;
  align-self: start;
  min-width: 0;
  max-height: calc(100vh - 4.8rem);
  overflow-y: auto;
  scrollbar-width: thin;
}

.briefing-rail::-webkit-scrollbar {
  width: 5px;
}

.briefing-rail::-webkit-scrollbar-thumb {
  background: var(--rule);
  border-radius: 4px;
}

.briefing-rail.collapsed {
  max-height: none;
  overflow: visible;
}

.briefing-rail.collapsed .briefing-widget-header {
  justify-content: center;
  padding: 0.45rem;
  border-bottom: none;
}

.briefing-rail.collapsed .briefing-title-group,
.briefing-rail.collapsed .briefing-widget-body {
  display: none;
}

.briefing-rail.collapsed .briefing-toggle-btn {
  width: 2.5rem;
  min-height: 2.25rem;
  justify-content: center;
  padding: 0.2rem;
}

.briefing-rail.collapsed .toggle-text {
  display: none;
}

.briefing-widget {
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--sheet);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.briefing-widget-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.65rem 0.85rem;
  background: var(--sheet-raised);
  border-bottom: 1px solid var(--rule);
}

.briefing-title-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.briefing-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.4rem;
  background: var(--gold-soft);
  color: var(--gold);
  border-radius: var(--radius-xs);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.briefing-widget-header h3 {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.briefing-toggle-btn {
  margin: 0;
  padding: 0.2rem 0.5rem;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  color: var(--ink-dim);
  font-size: 0.72rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: var(--transition);
  flex-shrink: 0;
}

.briefing-toggle-btn:hover {
  background: var(--sheet-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.toggle-arrow {
  font-size: 0.68rem;
  transition: transform 0.2s ease;
}

.briefing-widget-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0.8rem;
  transition: var(--transition);
}

.briefing-rail .brief-card {
  min-width: 0;
  padding: 0.75rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--sheet-raised);
}

.briefing-rail .brief-card-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.45rem;
}

.briefing-rail .brief-icon {
  font-size: 1.05rem;
  flex-shrink: 0;
}

.briefing-rail .brief-card .eyebrow {
  margin: 0;
  font-size: 0.64rem;
  color: var(--mute);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.briefing-rail .brief-card h4 {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink);
}

.keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.keyword-chip {
  margin: 0;
  padding: 0.22rem 0.48rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--sheet);
  color: var(--gold);
  font-size: 0.76rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.keyword-chip:hover {
  border-color: var(--gold);
  background: var(--gold-soft);
  transform: translateY(-1px);
}

.briefing-rail .brief-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.35rem;
}

.briefing-rail .brief-card li {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--ink);
  line-height: 1.45;
}

.strategy-bullet {
  color: var(--heat);
  font-size: 0.78rem;
  flex-shrink: 0;
}

.brief-insight p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--ink);
  word-break: keep-all;
}

/* 좌측 주제 게시판 사이드바 */
.category-rail {
  position: sticky;
  top: 4rem;
  align-self: start;
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-height: calc(100dvh - 4.8rem);
  box-sizing: border-box;
  padding: 0.55rem 0.6rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--sheet);
  box-shadow: var(--shadow-sm);
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: thin;
  transition: padding 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.category-rail::-webkit-scrollbar {
  width: 5px;
}

.category-rail::-webkit-scrollbar-thumb {
  background: var(--rule);
  border-radius: 4px;
}

.category-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.45rem;
  padding-bottom: 0.35rem;
  margin-bottom: 0.3rem;
  border-bottom: 1px solid var(--rule-subtle);
}

.category-title-group {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  min-width: 0;
}

.category-header-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

.category-header h2 {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

.category-toggle-btn {
  margin: 0;
  padding: 0.18rem 0.45rem;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  color: var(--ink-dim);
  font-size: 0.7rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  transition: var(--transition);
  flex-shrink: 0;
}

.category-toggle-btn:hover {
  background: var(--sheet-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.category-toggle-arrow {
  font-size: 0.66rem;
  transition: transform 0.2s ease;
}

.category-nav-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  gap: 0.12rem;
  transition: var(--transition);
}

.visit-counter {
  display: flex;
  align-items: center;
  min-height: 1.8rem;
  margin: 0.55rem 0 0;
  padding: 0.38rem 0.5rem;
  border-top: 1px solid var(--rule-subtle);
  color: var(--mute);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.35;
}

/* 좁은 화면에서 카테고리 메뉴 하단에 노출되는 브리핑 요약 카드 */
.briefing-preview {
  display: none;
  min-width: 0;
  margin-top: 0.7rem;
  padding: 0.7rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: linear-gradient(145deg, var(--sheet-raised), var(--sheet));
  box-shadow: var(--shadow-sm);
}

.briefing-preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  margin-bottom: 0.45rem;
}

.briefing-preview-icon {
  font-size: 1rem;
}

.briefing-preview-open {
  position: relative;
  display: grid;
  width: 100%;
  min-width: 0;
  gap: 0.28rem;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.briefing-preview-open:hover,
.briefing-preview-open:focus-visible {
  color: var(--accent);
}

.briefing-preview-open strong {
  overflow: hidden;
  color: inherit;
  font-size: 0.8rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.briefing-preview-text {
  display: -webkit-box;
  overflow: hidden;
  color: var(--ink-dim);
  font-size: 0.76rem;
  line-height: 1.45;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.briefing-preview-cta {
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 700;
}

/* 마우스 사용자는 말줄임된 원문을 카드 폭 밖의 풍선에서 확인한다. */
.briefing-preview-open::after {
  position: absolute;
  z-index: 30;
  top: calc(100% + 0.45rem);
  left: 0;
  width: min(24rem, calc(100vw - 2rem));
  max-height: 12rem;
  overflow-y: auto;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--sheet);
  box-shadow: var(--shadow-md);
  color: var(--ink);
  content: attr(data-tooltip);
  font-size: 0.76rem;
  font-weight: 400;
  line-height: 1.55;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-0.2rem);
  transition: opacity 0.14s ease, transform 0.14s ease;
  visibility: hidden;
  white-space: normal;
}

.briefing-preview-open:hover::after,
.briefing-preview-open:focus-visible::after {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

.link-status-badge {
  display: inline-flex;
  align-items: center;
  margin-left: 0.25rem;
  padding: 0.08rem 0.3rem;
  border: 1px solid var(--rule-bold);
  border-radius: 999px;
  background: var(--sheet-raised);
  color: var(--mute);
  font-size: 0.64rem;
  font-weight: 700;
  line-height: 1.35;
  white-space: nowrap;
}

.link-status-badge.status-exact_verified {
  border-color: var(--live);
  background: var(--live-soft);
  color: var(--live);
}

.link-status-badge.status-fallback_available {
  border-color: var(--gold);
  background: var(--gold-soft);
  color: var(--gold);
}

.link-status-badge.status-broken {
  border-color: var(--danger);
  background: var(--heat-soft);
  color: var(--danger);
}

.board-link-disabled {
  cursor: not-allowed;
  opacity: 0.9;
}

.category-rail.collapsed {
  padding: 0.45rem;
  overflow: visible;
}

.category-rail.collapsed .category-header {
  justify-content: center;
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.category-rail.collapsed .category-title-group,
.category-rail.collapsed .category-nav-body,
.category-rail.collapsed .visit-counter {
  display: none;
}

.category-rail.collapsed .category-toggle-btn {
  width: 2.5rem;
  min-height: 2.25rem;
  justify-content: center;
  padding: 0.2rem;
}

.category-nav {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}

.category-menu-group {
  display: grid;
  gap: 0.08rem;
  padding-top: 0.28rem;
  margin-top: 0.08rem;
  border-top: 1px solid var(--rule-subtle);
}

.category-menu-group-label {
  margin: 0 0.2rem 0.02rem;
  color: var(--mute);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.3;
}

.category-button {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  margin: 0;
  padding: 0.22rem 0.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--mute);
  text-align: left;
  font-size: 0.78rem;
  line-height: 1.3;
  cursor: pointer;
  transition: var(--transition);
  overflow: hidden;
}

.category-button .cat-emoji {
  font-style: normal;
  flex-shrink: 0;
}

.category-button .cat-label {
  color: inherit;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.category-button .cat-count {
  color: var(--mute);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.06rem 0.38rem;
  border-radius: 1rem;
  background: var(--sheet-raised);
  border: 1px solid var(--rule-subtle);
  margin-left: 0.15rem;
  flex-shrink: 0;
}

.category-button:hover {
  background: var(--sheet-hover);
  color: var(--ink);
}

.category-button:hover .cat-count {
  color: var(--ink);
}

.category-button.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.category-button.active .cat-count {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.community-main {
  min-width: 0;
  max-width: 100%;
  container-type: inline-size;
  container-name: lounge-main;
}

/* ==========================================================================
   커뮤니티 툴바 & 컨트롤러 (검색, 정렬 토글, 뷰 모드 토글)
   ========================================================================== */
.community-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  grid-template-areas: "search controls page-size";
  align-items: center;
  gap: 0.45rem 0.75rem;
  padding: 0.55rem 0.75rem;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  margin-bottom: 0.8rem;
  box-shadow: var(--shadow-sm);
}

.community-tools.is-intro {
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "search";
}

.community-tools.is-intro .tools-page-size-group,
.community-tools.is-intro .tools-controls-group {
  display: none;
}

.tools-search-group {
  grid-area: search;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
}

.search-field {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex: 1;
  background: var(--sheet-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.6rem;
  transition: var(--transition);
}

.search-field:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.search-icon {
  font-size: 0.85rem;
  opacity: 0.7;
}

.search-field input {
  border: 0;
  background: transparent;
  padding: 0.2rem 0;
  outline: none !important;
  font-size: 0.84rem;
}

.tools-controls-group {
  grid-area: controls;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: flex-start;
}

.tools-page-size-group {
  grid-area: page-size;
  display: flex;
  justify-content: flex-end;
}

.toggle-group {
  display: inline-flex;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--sheet-raised);
}

.toggle-group .control-btn {
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0.32rem 0.65rem;
}

.toggle-group .control-btn + .control-btn {
  border-left: 1px solid var(--rule);
}

.toggle-group .control-btn.active {
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
}

.page-size-control {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  min-height: 2rem;
  padding: 0.12rem 0.3rem 0.12rem 0.5rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--sheet-raised);
  color: var(--ink-dim);
  font-size: 0.78rem;
  white-space: nowrap;
  transition: var(--transition);
}

.page-size-control:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.page-size-control select {
  min-width: 4.35rem;
  border: 0;
  border-radius: var(--radius-xs);
  outline: none;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.page-size-control select option {
  background: var(--sheet-raised);
  color: var(--ink);
}

.pager button {
  margin: 0;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--sheet);
  color: var(--ink);
  font-size: 0.74rem;
  cursor: pointer;
  transition: var(--transition);
}

.pager button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.pager button[aria-current="page"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  font-weight: 600;
}

.pager button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

@media (min-width: 1680px) {
  .tools-controls-group {
    justify-content: flex-end;
  }
}

/* ==========================================================================
   우선순위 2단: 최상단 AI 큐레이션 하이라이트 핀 (Hot AI Board)
   ========================================================================== */
.ai-pin-container {
  margin-bottom: 1.1rem;
  padding: 0.9rem;
  background: linear-gradient(135deg, rgba(227, 179, 65, 0.08) 0%, rgba(88, 166, 255, 0.06) 100%), var(--sheet);
  border: 1px solid var(--gold);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px rgba(227, 179, 65, 0.1);
}

.ai-pin-header {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.7rem;
}

.pin-badge {
  font-size: 0.68rem;
  font-weight: 800;
  padding: 0.15rem 0.5rem;
  background: var(--gold);
  color: #000000;
  border-radius: var(--radius-xs);
  letter-spacing: 0.04em;
}

.ai-pin-header h3 {
  margin: 0;
  min-width: 0;
  flex: 1;
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--ink);
}

.ai-pin-toggle {
  margin: 0 0 0 auto;
  padding: 0.22rem 0.55rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--sheet);
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
}

.ai-pin-toggle:hover,
.ai-pin-toggle:focus-visible {
  background: var(--accent-soft);
  border-color: var(--accent);
  outline: none;
}

.ai-pin-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 0.7rem;
}

.ai-pin-card {
  padding: 0.75rem 0.85rem;
  background: var(--sheet-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--gold);
  transition: var(--transition);
}

.ai-pin-card:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
  box-shadow: var(--shadow-sm);
}

.ai-pin-badge-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
}

.ai-cat-pill {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
}

.ai-pin-card h4 {
  margin: 0 0 0.3rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
}

.ai-pin-card p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--mute);
  line-height: 1.5;
}

/* ==========================================================================
   커뮤니티 게시판 스택 (Board Stack & Groups)
   ========================================================================== */
.board-stack {
  display: grid;
  gap: 1.1rem;
}

/* 인트로: 여러 미니 게시판을 한 화면에 관제하는 격자 */
.board-stack.intro-board-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  align-items: stretch;
}

.intro-board {
  min-width: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--sheet);
  overflow: hidden;
}

.intro-board-head {
  margin: 0;
  border-bottom: 1px solid var(--rule);
  background: var(--sheet-raised);
}

.intro-board-title {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: 100%;
  margin: 0;
  padding: 0.42rem 0.6rem;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.intro-board-title:hover,
.intro-board-title:focus-visible {
  background: var(--sheet-hover);
  outline: none;
}

.intro-board-title .board-emoji {
  font-size: 0.92rem;
}

.intro-board-title h3 {
  margin: 0;
  min-width: 0;
  flex: 1;
  overflow: hidden;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 700;
  line-height: 1.25;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.intro-board-title .board-badge {
  margin-left: auto;
}

.intro-board-list {
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
}

.intro-board-row {
  display: grid;
  grid-template-columns: 2.55rem minmax(0, 1fr);
  align-items: center;
  gap: 0.4rem;
  width: 100%;
  margin: 0;
  padding: 0.32rem 0.6rem;
  border: 0;
  border-top: 1px solid var(--rule-subtle);
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.intro-board-row.notice-row {
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: 0.18rem;
  padding: 0.42rem 0.6rem;
}

.intro-board-list li:first-child .intro-board-row {
  border-top: 0;
}

.intro-board-row:hover,
.intro-board-row:focus-visible {
  background: var(--sheet-hover);
  outline: none;
}

.intro-board-row time {
  color: var(--mute);
  font-size: 0.68rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.intro-board-row span {
  min-width: 0;
  overflow: hidden;
  color: var(--ink);
  font-size: 0.78rem;
  line-height: 1.35;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.intro-board-row .intro-headline {
  display: block;
  min-width: 0;
  overflow: hidden;
  color: var(--ink);
  font-size: 0.78rem;
  line-height: 1.4;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.intro-board-row .notice-meta {
  justify-content: flex-start;
}

.intro-board-empty {
  margin: 0;
  padding: 0.7rem 0.65rem;
  color: var(--mute);
  font-size: 0.76rem;
}

.intro-board-foot {
  margin-top: auto;
  border-top: 1px solid var(--rule-subtle);
  background: var(--sheet-raised);
}

.intro-board-more {
  width: 100%;
  margin: 0;
  padding: 0.32rem 0.6rem;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 600;
  cursor: pointer;
}

.intro-board-more:hover,
.intro-board-more:focus-visible {
  background: var(--accent-soft);
  outline: none;
}

body.intro-view .ai-pin-container:not(.is-expanded) {
  margin-bottom: 0.7rem;
  padding: 0.55rem 0.7rem;
}

body.intro-view .ai-pin-container:not(.is-expanded) .ai-pin-header {
  margin-bottom: 0.45rem;
}

body.intro-view .ai-pin-container:not(.is-expanded) .ai-pin-list {
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.45rem;
}

body.intro-view .ai-pin-container:not(.is-expanded) .ai-pin-card {
  padding: 0.45rem 0.55rem;
}

body.intro-view .ai-pin-container:not(.is-expanded) .ai-pin-card:hover {
  transform: none;
}

body.intro-view .ai-pin-container:not(.is-expanded) .ai-pin-card p {
  display: none;
}

body.intro-view .ai-pin-container:not(.is-expanded) .ai-pin-card h4 {
  margin: 0;
  font-size: 0.8rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 960px) {
  body.intro-view .ai-pin-container:not(.is-expanded) .ai-pin-list {
    grid-template-columns: 1fr 1fr;
  }

  body.intro-view .ai-pin-container:not(.is-expanded) .ai-pin-card h4 {
    font-size: 0.74rem;
  }
}

@container lounge-main (max-width: 640px) {
  .board-stack.intro-board-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@container lounge-main (max-width: 300px) {
  .board-stack.intro-board-grid {
    grid-template-columns: 1fr;
  }
}

.board-group {
  min-width: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--sheet);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.selected-category-results {
  min-width: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--sheet);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.board-group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.75rem 1rem;
  background: var(--sheet-raised);
  border-bottom: 1px solid var(--rule);
}

.board-group-head.clickable-header {
  cursor: pointer;
  user-select: none;
}

.board-group-head.clickable-header:hover {
  background: var(--sheet-hover);
}

.board-group-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.board-emoji {
  font-size: 1.1rem;
}

.board-group-head h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}

.board-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.12rem 0.45rem;
  background: var(--sheet);
  border: 1px solid var(--rule-subtle);
  border-radius: 1rem;
  color: var(--mute);
}

.board-tag-filter {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
  max-height: 5.4rem;
  overflow-y: auto;
  padding: 0.45rem 1rem;
  background: color-mix(in srgb, var(--sheet) 88%, var(--sheet-raised));
  border-bottom: 1px solid var(--rule-subtle);
  scrollbar-width: thin;
}

.board-tag-filter-label {
  flex: 0 0 auto;
  color: var(--mute);
  font-size: 0.69rem;
  font-weight: 600;
}

.board-tag-filter-chip {
  margin: 0;
  padding: 0.16rem 0.45rem;
  border: 1px solid var(--rule);
  border-radius: 1rem;
  background: var(--sheet-raised);
  color: var(--ink-dim);
  font: inherit;
  font-size: 0.7rem;
  line-height: 1.3;
  cursor: pointer;
  transition: var(--transition);
}

.board-tag-filter-chip:hover,
.board-tag-filter-chip:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.board-tag-filter-chip.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
}

.board-tag-filter-chip span {
  margin-left: 0.12rem;
  opacity: 0.72;
  font-variant-numeric: tabular-nums;
}

.accordion-toggle-btn {
  margin: 0;
  padding: 0.22rem 0.55rem;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.accordion-toggle-btn:hover {
  background: var(--accent);
  color: #ffffff;
}

.board-sort-indicator {
  margin: 0;
  font-size: 0.74rem;
  color: var(--mute);
}

/* 무한 세로 스크롤 방지용 더보기 하단 바 */
.board-expand-footer {
  padding: 0.6rem 1rem;
  background: var(--sheet-raised);
  border-top: 1px solid var(--rule-subtle);
  text-align: center;
}

.board-expand-btn {
  width: 100%;
  margin: 0;
  padding: 0.45rem 1rem;
  background: var(--sheet);
  border: 1px dashed var(--rule);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.board-expand-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  border-style: solid;
}

/* ==========================================================================
   뷰 모드 1: 리스트형 (view-list) — 커뮤니티 게시판 스타일
   ========================================================================== */
.board-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.board-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.65rem 1rem;
  border-top: 1px solid var(--rule-subtle);
  transition: var(--transition);
}

.board-row:hover {
  background: var(--sheet-hover);
}

.board-row .board-type {
  flex-shrink: 0;
  min-width: 4.5rem;
}

.board-row .board-copy {
  flex: 1;
  min-width: 0;
}

.board-row .board-meta-col {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.board-row .board-action-col {
  flex-shrink: 0;
}

.board-type {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-xs);
  font-size: 0.7rem;
  font-weight: 600;
  white-space: nowrap;
}

.board-type.top_insight {
  background: var(--heat-soft);
  color: var(--heat);
}

.board-type.discovery {
  background: var(--live-soft);
  color: var(--live);
}

.board-type.bullet {
  background: var(--sheet-raised);
  color: var(--ink-dim);
  border: 1px solid var(--rule-subtle);
}

.board-type.notice {
  background: var(--accent-soft);
  color: var(--accent);
}

.board-copy {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  text-align: left;
  font-size: 0.9rem;
  line-height: 1.5;
  cursor: default;
  word-break: keep-all;
}

.board-meta-col {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.row-date {
  color: var(--mute);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
}

.notice-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 0.28rem;
}

.notice-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 0.22rem;
  padding: 0.14rem 0.42rem;
  border-radius: 999px;
  background: var(--sheet-raised);
  color: var(--ink-dim);
  font-size: 0.68rem;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.notice-chip .k {
  color: var(--mute);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.notice-chip.status-closed {
  background: rgba(248, 81, 73, 0.14);
  color: #ff7b72;
  font-weight: 700;
}

.notice-chip.status-open {
  background: var(--live-soft);
  color: var(--live);
  font-weight: 700;
}

.notice-chip.status-ongoing {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

.notice-chip.is-due-closed {
  color: var(--mute);
}

.notice-chip.is-collected {
  background: transparent;
  padding-inline: 0.2rem;
}

.card-meta .notice-meta {
  justify-content: flex-end;
}

.board-tags {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.board-tags span {
  color: var(--mute);
  font-size: 0.68rem;
  padding: 0.08rem 0.35rem;
  background: var(--sheet-raised);
  border-radius: var(--radius-xs);
}

.board-action-col {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.board-link {
  margin: 0;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-xs);
  background: var(--sheet-raised);
  color: var(--accent);
  font-size: 0.74rem;
  text-decoration: none;
  white-space: nowrap;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.board-link:hover {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* ==========================================================================
   뷰 모드 2: 카드형 (view-card) — 커뮤니티 피드/갤러리 스타일
   ========================================================================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 0.8rem;
  padding: 0.9rem;
}

.board-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0.85rem;
  background: var(--sheet-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.board-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.card-date {
  color: var(--mute);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
}

.card-body {
  flex: 1;
}

.card-text {
  margin: 0 0 0.6rem;
  color: var(--ink);
  font-size: 0.88rem;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: keep-all;
}


.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--rule-subtle);
}

/* ==========================================================================
   페이징 & 빈 상태 (Pagination & Empty State)
   ========================================================================== */
.board-pager {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.2rem;
  padding: 0.8rem;
}

.community-empty {
  margin: 1.5rem 0;
  padding: 2.5rem 1rem;
  border: 1px dashed var(--rule);
  border-radius: var(--radius-md);
  color: var(--mute);
  text-align: center;
  font-size: 0.9rem;
}

.board-empty {
  margin: 0;
  padding: 1.5rem;
  color: var(--mute);
  text-align: center;
  font-size: 0.84rem;
}

/* ==========================================================================
   종합 리포트 레이어
   ========================================================================== */
.report-close-btn {
  margin: 0;
  padding: 0.3rem 0.7rem;
  background: var(--sheet-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  color: var(--mute);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.report-close-btn:hover {
  background: var(--sheet-hover);
  color: var(--ink);
  border-color: var(--accent);
}

.site-footer {
  border-top: 1px solid var(--rule);
  background: var(--sheet);
}

.site-footer-inner {
  display: grid;
  grid-template-columns: minmax(15rem, 1fr) minmax(0, 1.6fr);
  gap: 1.4rem;
  max-width: 86rem;
  margin: 0 auto;
  padding: 1.25rem 1.2rem;
}

.footer-brand strong {
  color: var(--ink);
  font-size: 0.9rem;
}

.footer-brand p,
.footer-details {
  margin: 0.35rem 0 0;
  color: var(--mute);
  font-size: 0.76rem;
  font-style: normal;
  line-height: 1.55;
}

.footer-details {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  gap: 0.2rem 0.8rem;
}

.footer-details span:last-child {
  flex-basis: 100%;
}

.footer-details a {
  color: var(--ink-dim);
  text-decoration: none;
}

.footer-details a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.report-layer {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  padding: 1.2rem;
  overflow-y: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.report-panel {
  width: min(72rem, 100%);
  max-height: 90vh;
  overflow-y: auto;
  margin: auto;
  padding: 1.4rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--sheet);
  box-shadow: var(--shadow-md);
}

.report-panel header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.8rem;
  margin-bottom: 1rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--rule);
}

.report-header-tools {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.report-tabs {
  display: inline-flex;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--sheet-raised);
}

.report-tab {
  margin: 0;
  padding: 0.32rem 0.7rem;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink-dim);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
}

.report-tab + .report-tab {
  border-left: 1px solid var(--rule);
}

.report-tab:hover,
.report-tab:focus-visible {
  color: var(--accent);
  outline: none;
}

.report-tab.active {
  background: var(--accent);
  color: #ffffff;
}

.report-panel h2 {
  margin: 0.2rem 0 0;
  font-size: 1.25rem;
  color: var(--ink);
}

.briefing-detail-panel {
  width: min(46rem, 100%);
}

.briefing-detail-section {
  margin-top: 1.1rem;
  padding: 0.85rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--sheet-raised);
}

.briefing-detail-section h3 {
  margin: 0 0 0.65rem;
  color: var(--ink);
  font-size: 0.9rem;
}

.briefing-detail-strategies {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.briefing-detail-strategies li {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  color: var(--ink);
  font-size: 0.84rem;
  line-height: 1.55;
}

.community-summary {
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--ink);
  margin-bottom: 1.2rem;
}

.report-charts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.report-charts figure {
  margin: 0;
  padding: 0.8rem;
  background: var(--sheet-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
}

.report-charts figure.wide {
  grid-column: 1 / -1;
}

.report-charts figcaption {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--mute);
  margin-bottom: 0.5rem;
}

.chart-explainer {
  margin: -0.15rem 0 0.65rem;
  color: var(--mute);
  font-size: 0.72rem;
  line-height: 1.45;
}

.chart-host {
  height: 260px;
  width: 100%;
}

/* ==========================================================================
   미디어 쿼리 (반응형 최적화)
   ========================================================================== */
@media (min-width: 1201px) and (max-height: 860px) {
  /* sticky 메뉴가 뷰포트보다 클 때만 그룹 라벨을 접어 내부 세로 스크롤을 없앤다. */
  .category-menu-group-label {
    display: none;
  }

  .category-menu-group {
    padding-top: 0.1rem;
    margin-top: 0.04rem;
  }
}

@media (max-width: 1200px) {
  .community-layout {
    --category-rail-width: minmax(11rem, 13rem);
    grid-template-columns: var(--category-rail-width) minmax(0, 1fr);
  }

  .community-layout.category-rail-collapsed {
    --category-rail-width: 3.55rem;
  }

  .briefing-rail.collapsed {
    grid-column: 2;
    justify-self: end;
    width: 3.55rem;
  }

  /* 브리핑은 두 번째 행으로 내려가므로, 메뉴를 sticky로 띄우지 않고 페이지 흐름에 맡긴다. */
  .category-rail {
    position: static;
    max-height: none;
    overflow: visible;
  }

  .briefing-rail {
    grid-column: 1 / -1;
    position: static;
    max-height: none;
    overflow-y: visible;
    display: none;
  }

  .briefing-preview {
    display: block;
  }
}

@media (max-width: 960px) {
  .community-layout {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .category-rail {
    position: static;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.2rem;
    max-height: none;
    overflow: visible;
  }

  .community-layout.category-rail-collapsed {
    grid-template-columns: 1fr;
  }

  /* 좁은 화면에서는 가로 탐색 막대가 더 읽기 쉽다. 이전 접기 상태도 여기서는 적용하지 않는다. */
  .category-rail.collapsed {
    padding: 0.5rem 0.75rem;
    overflow: visible;
  }

  .category-rail.collapsed .category-nav-body {
    display: block;
  }

  .category-header {
    display: none;
  }

  .briefing-preview {
    order: 2;
  }

  .visit-counter {
    order: 3;
    margin-top: 0.45rem;
  }

  .category-nav-body {
    display: block;
    width: 100%;
  }

  .category-nav {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 0.4rem;
    padding-bottom: 0.25rem;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  /* 모바일에서는 그룹 컨테이너를 풀어 모든 주제를 같은 가로 탐색 칩으로 보인다. */
  .category-menu-group {
    display: contents;
  }

  .category-menu-group-label {
    display: none;
  }

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

  .category-button {
    width: auto;
    white-space: nowrap;
    flex-shrink: 0;
    padding: 0.35rem 0.65rem;
    border: 1px solid var(--rule);
    border-radius: 2rem;
    background: var(--sheet-raised);
  }

  .category-button:hover {
    border-color: var(--accent);
  }

  .category-button.active {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
  }

  .category-button.active .cat-count {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
  }

  .briefing-rail {
    grid-column: auto;
    position: static;
    max-height: none;
    overflow-y: visible;
  }

  .briefing-rail.collapsed {
    grid-column: auto;
    justify-self: end;
    width: 3.55rem;
  }

  .report-charts {
    grid-template-columns: 1fr;
  }

  .site-footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  /* 터치 화면에서는 hover 풍선 대신 카드 탭으로 상세 레이어를 연다. */
  .briefing-preview-open::after {
    display: none;
  }

  .login-view {
    align-items: center;
    padding: 1.4rem 1rem;
  }

  .pass {
    grid-template-columns: 1fr;
  }

  .login-character {
    position: relative;
    top: auto;
    right: auto;
    order: -1;
    width: auto;
    min-height: 8rem;
    max-height: 11rem;
    padding: 0.8rem 0.8rem 0;
    opacity: 1;
  }

  .login-character::before {
    display: none;
  }

  .login-character img {
    width: auto;
    height: 100%;
    max-height: 10rem;
    filter: none;
  }

  .mast {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
    padding: 0.7rem;
  }

  .mast-brand {
    justify-content: space-between;
  }

  .mast-actions {
    width: 100%;
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .report-panel header {
    flex-wrap: wrap;
  }

  .site-footer-inner {
    padding: 1rem 0.7rem;
  }

  .board-row {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.4rem;
    padding: 0.75rem;
  }

  .board-meta-col {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .board-meta-col .notice-meta {
    justify-content: flex-start;
  }

  .community-tools {
    grid-template-columns: 1fr;
    grid-template-areas:
      "search"
      "controls"
      "page-size";
    align-items: stretch;
    padding: 0.5rem;
  }

  .community-tools.is-intro {
    grid-template-columns: 1fr;
    grid-template-areas: "search";
  }

  .tools-controls-group {
    justify-content: flex-start;
    gap: 0.35rem;
  }
}