/* ============================================================
   room.css — 커뮤니티 룸 (비즈·크리에이터) 3 col layout
   디자인: manus.im 차용 (라이트 베이지 + Instrument Serif italic)
   외부 표준:
     - https://themefoundation.com/three-column-css-layout-split-sidebars/
     - https://www.mightynetworks.com/resources/business-community-platform
   갱신: 2026-05-25 S3.43
   ============================================================ */

:root {
  --room-bg:        #F7F6F2;
  --room-card:      #FFFFFF;
  --room-ink:       #0A0A0A;
  --room-ink-soft:  #5C5C58;
  --room-ink-faint: #9C9C96;
  --room-rule:      #E5E3DC;
  --room-accent:    #6B5BD0;
  --room-accent-soft: #F0EEFF;
  --room-radius:    14px;
  --room-radius-sm: 8px;
  --room-shadow:    0 1px 2px rgba(10,10,10,0.04), 0 8px 24px rgba(10,10,10,0.05);
}

[data-theme="dark"] {
  --room-bg:        #0F0F0E;
  --room-card:      #1A1A18;
  --room-ink:       #F7F6F2;
  --room-ink-soft:  #BFBEB8;
  --room-ink-faint: #6F6E68;
  --room-rule:      #2A2A26;
  --room-accent-soft: rgba(107,91,208,0.18);
  --room-shadow:    0 1px 2px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.3);
}

.room-wrap {
  background: var(--room-bg);
  color: var(--room-ink);
  min-height: 100vh;
  padding: 16px;
}

.room-grid {
  display: grid;
  grid-template-columns: 220px 1fr 280px;
  gap: 16px;
  max-width: 1440px;
  margin: 0 auto;
}

/* ============ 좌측 사이드바 ============ */
.room-aside-left {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 80px;
  align-self: start;
  max-height: calc(100vh - 96px);
  overflow-y: auto;
}

.room-aside__title {
  font-size: 12px;
  font-weight: 600;
  color: var(--room-ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 8px;
}

.room-country__list,
.room-section__list,
.room-category__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.room-country__list li,
.room-section__list li,
.room-category__list li {
  padding: 8px 12px;
  border-radius: var(--room-radius-sm);
  font-size: 14px;
  color: var(--room-ink-soft);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.12s ease;
}

.room-country__list li a,
.room-section__list li a,
.room-category__list li a {
  color: inherit;
  text-decoration: none;
  display: block;
  width: 100%;
}

.room-country__list li:hover,
.room-section__list li:hover,
.room-category__list li:hover {
  background: var(--room-accent-soft);
  color: var(--room-ink);
}

.room-country__list li.is-active,
.room-section__list li.is-active {
  background: var(--room-accent-soft);
  color: var(--room-ink);
  font-weight: 600;
}

.room-country__list li.is-soon {
  color: var(--room-ink-faint);
  cursor: not-allowed;
}

.room-country__list li small,
.room-section__list li small {
  font-size: 11px;
  color: var(--room-ink-faint);
  font-weight: 400;
}

.room-new {
  padding: 12px;
  background: var(--room-card);
  border: 1px solid var(--room-rule);
  border-radius: var(--room-radius);
}

.room-new__hint {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--room-ink-faint);
  text-align: center;
}

/* ============ 중앙 본문 ============ */
.room-main {
  background: var(--room-card);
  border-radius: var(--room-radius);
  border: 1px solid var(--room-rule);
  padding: 24px;
  min-height: 600px;
}

.room-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--room-rule);
  margin-bottom: 20px;
  padding-bottom: 0;
  overflow-x: auto;
}

.room-tab {
  padding: 10px 16px;
  border: none;
  background: transparent;
  font-size: 14px;
  font-weight: 500;
  color: var(--room-ink-soft);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color 0.12s ease, border-color 0.12s ease;
}

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

.room-tab.is-active {
  color: var(--room-accent);
  border-bottom-color: var(--room-accent);
}

.room-pinned {
  background: var(--room-accent-soft);
  border-radius: var(--room-radius-sm);
  padding: 14px 16px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.room-pinned__badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--room-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.room-pinned__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--room-ink);
  text-decoration: none;
}

.room-pinned__title:hover {
  text-decoration: underline;
}

.room-pinned__source {
  font-size: 12px;
  color: var(--room-ink-faint);
}

.room-panel {
  padding-top: 8px;
}

.room-card-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--room-ink-soft);
}

.room-card-empty p {
  margin: 0 0 16px;
  font-size: 14px;
}

.room-loading {
  text-align: center;
  padding: 40px 20px;
  color: var(--room-ink-faint);
  font-size: 14px;
}

.room-post {
  padding: 14px 0;
  border-bottom: 1px solid var(--room-rule);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

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

.room-post__pin {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  color: var(--room-accent);
  background: var(--room-accent-soft);
  padding: 2px 6px;
  border-radius: 4px;
  width: fit-content;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.room-post__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--room-ink);
  text-decoration: none;
  line-height: 1.4;
}

.room-post__title:hover {
  color: var(--room-accent);
  text-decoration: underline;
}

.room-post__meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--room-ink-faint);
  flex-wrap: wrap;
}

.room-post__cat {
  color: var(--room-accent);
  font-weight: 500;
}

/* ============ 우측 위젯 ============ */
.room-aside-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 80px;
  align-self: start;
  max-height: calc(100vh - 96px);
  overflow-y: auto;
}

.room-tool-card {
  background: var(--room-card);
  border-radius: var(--room-radius);
  border: 1px solid var(--room-rule);
  padding: 20px;
  box-shadow: var(--room-shadow);
}

.room-tool-card--addis {
  background: linear-gradient(135deg, #FFF8F0 0%, #FFE9D6 100%);
  border-color: #F4D6B8;
}

.room-tool-card--amis {
  background: linear-gradient(135deg, #F0F5FF 0%, #D9E8FF 100%);
  border-color: #B8D0F4;
}

[data-theme="dark"] .room-tool-card--addis {
  background: linear-gradient(135deg, #2A1F18 0%, #1A1610 100%);
  border-color: #4A3520;
}

[data-theme="dark"] .room-tool-card--amis {
  background: linear-gradient(135deg, #1A2030 0%, #10141E 100%);
  border-color: #2A3550;
}

.room-tool-card__title {
  font-family: 'Instrument Serif', 'Pretendard Variable', serif;
  font-style: italic;
  font-size: 26px;
  font-weight: 400;
  color: var(--room-ink);
  margin: 0 0 8px;
}

.room-tool-card__desc {
  font-size: 13px;
  color: var(--room-ink-soft);
  margin: 0 0 12px;
  line-height: 1.5;
}

.room-tool-card__feat {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  font-size: 12px;
  color: var(--room-ink-soft);
}

.room-tool-card__feat li {
  padding: 4px 0;
}

.room-tool-card__feat li::before {
  content: "—";
  margin-right: 8px;
  color: var(--room-accent);
}

.room-widget {
  background: var(--room-card);
  border-radius: var(--room-radius);
  border: 1px solid var(--room-rule);
  padding: 16px;
}

.room-widget__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--room-ink);
  margin: 0 0 10px;
}

.room-widget__list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 13px;
  color: var(--room-ink-soft);
}

.room-widget__list li {
  padding: 6px 0;
  border-bottom: 1px solid var(--room-rule);
}

.room-widget__list li:last-child {
  border-bottom: none;
}

.room-widget__list li a {
  color: inherit;
  text-decoration: none;
}

.room-widget__list li a:hover {
  color: var(--room-accent);
}

.room-widget__empty {
  color: var(--room-ink-faint);
  font-style: italic;
}

.room-widget__list--apps li::before {
  content: "→";
  margin-right: 8px;
  color: var(--room-accent);
}

/* ============ 버튼 ============ */
.room-btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: var(--room-radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.12s ease;
}

.room-btn--primary {
  background: var(--room-ink);
  color: var(--room-bg);
}

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

.room-btn--outline {
  background: transparent;
  color: var(--room-ink);
  border-color: var(--room-rule);
}

.room-btn--outline:hover {
  border-color: var(--room-accent);
  color: var(--room-accent);
}

.room-btn--block {
  display: block;
  width: 100%;
  text-align: center;
}

/* ============ 모바일 ============ */
@media (max-width: 1024px) {
  .room-grid {
    grid-template-columns: 1fr;
  }
  .room-aside-left,
  .room-aside-right {
    position: relative;
    top: 0;
    max-height: none;
  }
}

@media (max-width: 600px) {
  .room-wrap {
    padding: 8px;
  }
  .room-main {
    padding: 16px;
  }
  .room-tabs {
    gap: 0;
  }
  .room-tab {
    padding: 10px 12px;
    font-size: 13px;
  }
}

/* ============ S3.44 (2026-05-26): 안내 본문 분류 강화 — Reddit + 네이버 카페 차용 ============ */
/* 외부 자료: https://support.reddithelp.com/hc/en-us/articles/15484474697748-Sidebar-Widgets */
/*           https://www.mightynetworks.com/resources/community-platforms */

.room-cat__desc {
  display: block;
  font-size: 11px;
  color: var(--room-ink-faint);
  line-height: 1.4;
  margin-top: 2px;
  padding-left: 8px;
}

.room-category__list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--room-rule);
}

.room-category__list li:last-child { border-bottom: 0; }

.room-category__list a {
  display: block;
  color: var(--room-ink);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
}

.room-category__list a:hover { color: var(--room-accent); }

.room-category__list li.is-active a { color: var(--room-accent); font-weight: 600; }

.room-about {
  background: var(--room-card);
  border: 1px solid var(--room-rule);
  border-radius: var(--room-radius);
  padding: 20px 24px;
  margin-bottom: 16px;
  box-shadow: var(--room-shadow);
}

.room-about__title {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--room-ink);
}

.room-about__desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--room-ink-soft);
  margin: 0 0 12px;
}

.room-about__rules {
  margin: 0;
  padding-left: 20px;
  font-size: 13px;
  color: var(--room-ink-soft);
  line-height: 1.6;
}

.room-about__rules li { margin-bottom: 4px; }

/* ============ S3.44 — Empty State 강화 (Eleken + LogRocket UX 표준) ============ */
/* https://www.eleken.co/blog-posts/empty-state-ux + https://blog.logrocket.com/ux-design/empty-states-ux-examples/ */

.room-card-empty {
  text-align: center;
  padding: 56px 24px;
  background: var(--room-card);
  border: 1px dashed var(--room-rule);
  border-radius: var(--room-radius);
}

.room-card-empty__icon {
  font-size: 48px;
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.85;
}

.room-card-empty__title {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--room-ink);
}

.room-card-empty__desc {
  font-size: 14px;
  color: var(--room-ink-soft);
  line-height: 1.6;
  margin: 0 auto 24px;
  max-width: 480px;
}

.room-card-empty__actions {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.room-btn--ghost {
  background: transparent;
  color: var(--room-ink-soft);
  border: 1px solid var(--room-rule);
  padding: 8px 14px;
  border-radius: var(--room-radius-sm);
  font-size: 13px;
  text-decoration: none;
}

.room-btn--ghost:hover { background: var(--room-accent-soft); color: var(--room-accent); }