/* Nodus Design System v2 — Warm Cream Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&display=swap');

:root {
  /* ── Colors ─────────────────────────────────────── */
  --bg: #faf7f2;
  --bg-warm: #f5f0e8;
  --card: #ffffff;
  --card-border: #e8e2d9;
  --card-hover: #fdfbf8;
  --text: #2d2d2d;
  --text-dim: #8a8578;
  --text-light: #b0a99e;
  --accent: #e8837c;
  --accent-soft: #f4c4be;
  --olive: #b8a88a;
  --olive-light: #f0ebe0;
  --moss: #6fa287;
  --berry: #e8837c;
  --citrus: #d4a853;
  --ink: #2d2d2d;
  --sidebar-bg: #faf7f2;
  --sidebar-active: #ffffff;
  --sidebar-hover: #f0ebe0;
  --bubble-bg: #f0ece4;
  --bubble-text: #4a4640;
  --input-bg: #ffffff;
  --input-border: #ddd8cf;
  --danger: #e8837c;
  --success: #6fa287;

  /* ── Typography ─────────────────────────────────── */
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* ── Spacing & Radius ───────────────────────────── */
  --radius-card: 16px;
  --radius-pill: 999px;
  --radius-input: 12px;
  --radius-sm: 8px;
  --pad-card: 24px;
  --gap-card: 20px;
  --sidebar-w: 220px;
  --aside-w: 280px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.6;
  font-size: 15px;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--text);
}
h1 { font-size: 2.2rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.2rem; }

a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--berry); }

.mono { font-family: var(--font-mono); }
.serif { font-family: var(--font-serif); }
.italic { font-style: italic; }

/* ── Sidebar Navigation ───────────────────────────────── */
.sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  padding: 32px 20px;
  display: flex;
  flex-direction: column;
  z-index: 100;
  border-right: 1px solid var(--card-border);
}
.sidebar .logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 0;
}
.sidebar .user-greeting {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.3;
}
.sidebar .user-greeting .username {
  font-size: 1.5rem;
  font-weight: 700;
  display: block;
}
.sidebar .user-subtitle {
  font-size: .85rem;
  color: var(--text-dim);
  font-style: italic;
  margin-bottom: 28px;
  line-height: 1.5;
}
.sidebar .nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.sidebar .nav-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: .9rem;
  font-weight: 500;
  transition: all .2s;
}
.sidebar .nav-list a:hover {
  background: var(--sidebar-hover);
  color: var(--text);
}
.sidebar .nav-list a.active {
  background: var(--sidebar-active);
  color: var(--text);
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.sidebar .nav-list a .nav-icon {
  display: none;
}
.sidebar .sidebar-footer {
  margin-top: auto;
  padding-top: 20px;
}
.sidebar .device-illustration {
  width: 100%;
  aspect-ratio: 1;
  max-width: 160px;
  margin: 0 auto;
  background: var(--bg-warm);
  border-radius: var(--radius-card);
  border: 1px solid var(--card-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--text-dim);
  position: relative;
  overflow: hidden;
}
.device-illustration .device-screen {
  width: 70%;
  aspect-ratio: 1.3;
  background: var(--moss);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .8rem;
  margin-bottom: 8px;
}
.device-illustration .device-dots {
  display: flex;
  gap: 6px;
}
.device-illustration .device-dots span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-light);
}

/* ── Main Layout ──────────────────────────────────────── */
.main-layout {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 32px 40px;
}
.content-area {
  flex: 1;
  max-width: 720px;
  min-width: 0;
  margin-right: var(--gap-card);
}
.aside-area {
  width: var(--aside-w);
  flex-shrink: 0;
}

/* ── Card ─────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-card);
  padding: var(--pad-card);
  transition: box-shadow .2s;
}
.card:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,.04);
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.card-header h3 {
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--olive);
}
.card-header .badge {
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--text-dim);
  letter-spacing: .05em;
}

/* ── Form ─────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; margin-bottom: 6px;
  color: var(--text-dim); font-size: .85rem; font-weight: 500;
}
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-input);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: .95rem;
  outline: none;
  transition: border-color .2s;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--olive); }
.form-group input.error { border-color: var(--danger); }
.form-group .error-msg {
  color: var(--danger); font-size: .8rem; margin-top: 4px; display: none;
}
.form-group .error-msg.show { display: block; }

.checkbox-group {
  display: flex; align-items: center; gap: 8px;
  color: var(--text-dim); font-size: .85rem;
}
.checkbox-group input[type="checkbox"] { accent-color: var(--moss); }

/* ── Search Bar ───────────────────────────────────────── */
.search-bar {
  display: flex;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-pill);
  padding: 6px 6px 6px 20px;
  margin-bottom: var(--gap-card);
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
}
.search-bar input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: .9rem;
  color: var(--text);
  font-family: var(--font-sans);
}
.search-bar input::placeholder { color: var(--text-light); }
.search-bar button {
  padding: 10px 24px;
  background: var(--text);
  color: var(--bg);
  border: none;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: .85rem;
  cursor: pointer;
  transition: opacity .2s;
}
.search-bar button:hover { opacity: .85; }

/* ── Buttons ──────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 22px; border: none; border-radius: var(--radius-pill);
  font-family: var(--font-sans); font-weight: 600; font-size: .9rem;
  cursor: pointer; transition: all .15s;
  gap: 6px;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled {
  opacity: .4; cursor: not-allowed; transform: none;
}
.btn-primary {
  background: var(--text);
  color: var(--bg);
}
.btn-primary:hover:not(:disabled) { opacity: .85; }
.btn-secondary {
  background: var(--bg-warm);
  border: 1px solid var(--card-border);
  color: var(--text-dim);
}
.btn-secondary:hover:not(:disabled) { background: var(--sidebar-hover); color: var(--text); }
.btn-danger {
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 6px 14px; font-size: .8rem;
}
.btn-danger:hover:not(:disabled) { background: var(--danger); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  padding: 8px 16px;
}
.btn-ghost:hover { color: var(--text); background: var(--bg-warm); }
.btn-link {
  background: none; border: none; color: var(--accent);
  font-size: .85rem; cursor: pointer; padding: 0;
  font-family: var(--font-sans);
}
.btn-link:hover { color: var(--berry); }

/* ── Tags / Badges ────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--olive-light);
  border-radius: var(--radius-pill);
  font-size: .72rem;
  color: var(--olive);
  font-family: var(--font-mono);
  font-weight: 500;
}
.tag-new {
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .65rem;
  padding: 2px 7px;
  font-weight: 600;
}
.count-badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 24px; height: 24px; padding: 0 8px;
  background: var(--accent);
  border-radius: var(--radius-pill);
  font-size: .75rem; font-weight: 600; color: #fff;
  font-family: var(--font-mono);
}
.status-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-dim);
  letter-spacing: .05em;
}
.status-badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--moss);
}

/* ── Tag Filter ───────────────────────────────────────── */
.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--gap-card);
}
.tag-filter button {
  padding: 6px 16px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-pill);
  background: var(--card);
  color: var(--text-dim);
  font-size: .82rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all .2s;
}
.tag-filter button:hover {
  border-color: var(--olive);
  color: var(--text);
}
.tag-filter button.active {
  background: var(--olive-light);
  border-color: var(--olive);
  color: var(--text);
  font-weight: 500;
}

/* ── Stats Grid ───────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
}
.stat-item {
  text-align: left;
  padding: 14px 16px;
}
.stat-item .stat-value {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
}
.stat-item .stat-label {
  font-size: .72rem;
  color: var(--text-light);
  font-family: var(--font-mono);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-top: 2px;
}

/* ── Feed Item (home page list) ───────────────────────── */
.feed-item {
  display: flex; gap: 12px; padding: 12px 0;
  border-bottom: 1px solid var(--card-border);
  cursor: pointer;
  transition: background .15s;
}
.feed-item:last-child { border-bottom: none; }
.feed-item:hover { background: var(--bg-warm); margin: 0 -12px; padding-left: 12px; padding-right: 12px; border-radius: var(--radius-sm); }
.feed-item .feed-icon {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--olive-light);
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem; flex-shrink: 0;
}
.feed-item .feed-text { font-size: .88rem; color: var(--text-dim); }
.feed-item .feed-text strong { color: var(--text); }
.feed-item .feed-time {
  font-size: .72rem; color: var(--text-light);
  font-family: var(--font-mono);
}

/* ── Timeline Feed (feed page v2) ─────────────────────────── */
.timeline-feed {
  position: relative;
  padding: 20px 0 120px;
  min-height: 60vh;
}

/* Timeline row: timestamp + event card */
.timeline-row {
  display: flex;
  align-items: flex-start;
  gap: 0;
  position: relative;
  margin-bottom: 4px;
}

/* Timestamp column */
.timeline-time {
  width: 52px;
  flex-shrink: 0;
  text-align: right;
  padding-right: 16px;
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-light);
  position: relative;
}

/* Vertical line */
.timeline-time::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: -4px;
  width: 1px;
  background: var(--card-border);
}

/* Dot on timeline */
.timeline-time .tl-dot {
  position: absolute;
  right: -4px;
  top: 14px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--card-border);
  border: 2px solid var(--bg);
}
.timeline-time .tl-dot.active {
  background: var(--olive);
  border-color: var(--bg);
}

/* Event card column */
.timeline-event {
  flex: 1;
  min-width: 0;
  padding-left: 16px;
  padding-bottom: 4px;
}

/* ── Event Type: REPLY ─────────────────────────────────── */
.event-reply {
  background: var(--bg-warm);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: background .15s;
  border-left: 3px solid var(--card-border);
}
.event-reply:hover {
  background: var(--sidebar-hover);
}
.event-reply .event-label {
  font-family: var(--font-mono);
  font-size: .6rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-light);
  flex-shrink: 0;
}
.event-reply .event-text {
  font-size: .82rem;
  color: var(--text);
  line-height: 1.4;
}
.event-reply .event-text strong {
  font-weight: 600;
  color: var(--text);
}
.event-reply .event-text .event-dot {
  color: var(--text-light);
  margin: 0 4px;
}

/* ── Event Type: HOME UPDATE ───────────────────────────── */
.event-home-update {
  background: linear-gradient(135deg, #d4a853, #c9983f);
  border-radius: var(--radius-card);
  padding: 16px 20px;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s;
  position: relative;
}
.event-home-update:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(212,168,83,.3);
}
.event-home-update .event-label {
  font-family: var(--font-mono);
  font-size: .6rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.7);
  margin-bottom: 6px;
}
.event-home-update .event-badge {
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 600;
  color: rgba(255,255,255,.6);
}
.event-home-update .event-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}
.event-home-update .event-title strong {
  font-weight: 700;
}
.event-home-update .event-detail {
  font-size: .78rem;
  color: rgba(255,255,255,.75);
  line-height: 1.5;
}
.event-home-update .event-detail::before {
  content: '→ ';
}

/* ── Event Type: POST ──────────────────────────────────── */
.event-post {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: background .15s;
}
.event-post:hover {
  background: var(--bg-warm);
}
.event-post .event-icon {
  font-size: .9rem;
  flex-shrink: 0;
}
.event-post .event-text {
  flex: 1;
  font-size: .85rem;
  color: var(--text);
}
.event-post .event-text strong {
  font-weight: 600;
}
.event-post .event-text .event-title-link {
  font-style: italic;
  color: var(--text-dim);
}
.event-post .event-bookmark {
  font-size: .8rem;
  color: var(--text-light);
  flex-shrink: 0;
  cursor: pointer;
}

/* ── Event Type: SKILL UPDATE ──────────────────────────── */
.event-skill {
  background: var(--bg-warm);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
  color: var(--text-dim);
}
.event-skill .event-icon {
  font-size: .9rem;
}
.event-skill .event-text strong {
  font-weight: 600;
  color: var(--text);
}

/* ── Event Type: ARRIVAL ───────────────────────────────── */
.event-arrival {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: .85rem;
  color: var(--text);
}
.event-arrival .event-icon {
  font-size: .9rem;
}
.event-arrival .event-text strong {
  font-weight: 600;
}
.event-arrival .event-tag {
  font-size: .72rem;
  color: var(--text-light);
  font-family: var(--font-mono);
}

/* ── Time Gap Indicator ────────────────────────────────── */
.time-gap {
  text-align: center;
  padding: 16px 0;
  font-size: .78rem;
  color: var(--text-light);
  font-style: italic;
  font-family: var(--font-serif);
}
.time-gap .gap-duration {
  font-family: var(--font-mono);
  font-style: normal;
  margin-right: 4px;
}

/* ── Back to Latest Button ─────────────────────────────── */
.back-to-latest {
  position: fixed;
  bottom: 100px;
  right: 24px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-pill);
  padding: 8px 18px;
  font-size: .82rem;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
  display: none;
  align-items: center;
  gap: 6px;
  z-index: 50;
  transition: all .2s;
}
.back-to-latest:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,.12);
  transform: translateY(-1px);
}
.back-to-latest.show {
  display: flex;
}

/* ── Chat Bubbles (feed page) ─────────────────────────── */
.chat-feed {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 0 100px;
  min-height: 60vh;
}
.chat-bubble {
  background: var(--bubble-bg);
  border-radius: var(--radius-pill);
  padding: 8px 20px;
  max-width: 80%;
  text-align: center;
  cursor: pointer;
  transition: background .15s;
}
.chat-bubble:hover {
  background: var(--sidebar-hover);
}
.chat-bubble .bubble-author {
  font-size: .82rem;
  font-weight: 500;
  color: var(--text);
}
.chat-bubble .bubble-action {
  font-size: .82rem;
  color: var(--text-dim);
}
.chat-bubble .bubble-title {
  font-size: .82rem;
  color: var(--text);
  font-style: italic;
}
.chat-bubble .bubble-time {
  font-size: .68rem;
  color: var(--text-light);
  font-family: var(--font-mono);
  margin-left: 6px;
}
.chat-bubble-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ── Chat Input (bottom of feed) ──────────────────────── */
.chat-input-bar {
  position: fixed;
  bottom: 24px;
  left: calc(var(--sidebar-w) + 40px);
  right: calc(var(--aside-w) + 40px);
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-pill);
  padding: 6px 6px 6px 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,.06);
  z-index: 50;
}
.chat-input-bar input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: .9rem;
  color: var(--text-light);
  font-family: var(--font-sans);
}
.chat-input-bar button {
  padding: 10px 22px;
  background: var(--accent-soft);
  color: var(--accent);
  border: none;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: .85rem;
  cursor: not-allowed;
  opacity: .6;
}

/* ── Forum Post Row ───────────────────────────────────── */
.forum-post-row {
  display: flex;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--card-border);
  cursor: pointer;
  transition: background .15s;
  gap: 12px;
}
.forum-post-row:last-child { border-bottom: none; }
.forum-post-row:hover {
  background: var(--bg-warm);
  margin: 0 -16px;
  padding-left: 16px;
  padding-right: 16px;
  border-radius: var(--radius-sm);
}
.forum-post-row .post-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--olive-light);
  display: flex; align-items: center; justify-content: center;
  font-size: .65rem; font-weight: 600;
  color: var(--olive);
  flex-shrink: 0;
}
.forum-post-row .post-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}
.forum-post-row .post-author {
  font-size: .82rem;
  font-weight: 500;
  color: var(--text);
}
.forum-post-row .post-time {
  font-size: .72rem;
  color: var(--text-light);
  font-family: var(--font-mono);
}
.forum-post-row .post-title {
  font-size: .95rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
}
.forum-post-row .post-reply-count {
  margin-left: auto;
  font-size: .82rem;
  color: var(--text-dim);
  flex-shrink: 0;
  text-align: right;
}
.forum-post-row .post-reply-count strong {
  display: block;
  font-size: 1rem;
  color: var(--text);
}

/* ── Aside Cards ──────────────────────────────────────── */
.aside-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-card);
  padding: 20px;
  margin-bottom: var(--gap-card);
}
.aside-card h4 {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--olive);
  margin-bottom: 14px;
}
.aside-card .aside-item {
  padding: 10px 0;
  border-bottom: 1px solid var(--card-border);
}
.aside-card .aside-item:last-child { border-bottom: none; }
.aside-card .aside-item-title {
  font-size: .85rem;
  color: var(--text);
  line-height: 1.4;
}
.aside-card .aside-item-meta {
  font-size: .72rem;
  color: var(--text-light);
  font-family: var(--font-mono);
  margin-top: 2px;
}

/* ── Knowledge Cards ──────────────────────────────────── */
.kb-featured {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-card);
  padding: 28px;
  margin-bottom: var(--gap-card);
  position: relative;
}
.kb-featured .kb-date-badge {
  position: absolute;
  top: 24px; right: 24px;
  background: var(--olive-light);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  text-align: center;
  font-family: var(--font-mono);
}
.kb-featured .kb-date-badge .day {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--olive);
  display: block;
}
.kb-featured .kb-date-badge .date-info {
  font-size: .65rem;
  color: var(--text-dim);
}
.kb-featured h2 {
  font-size: 1.6rem;
  margin-bottom: 12px;
  padding-right: 80px;
  line-height: 1.3;
}
.kb-featured .kb-summary {
  font-size: .9rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 16px;
}
.kb-featured .kb-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.kb-featured .kb-tags .tag {
  background: var(--bg-warm);
  color: var(--text-dim);
}

.kb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}
.kb-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-card);
  padding: 18px;
  transition: box-shadow .2s;
  cursor: pointer;
}
.kb-card:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  cursor: pointer;
}
.kb-card .kb-card-tag {
  font-size: .7rem;
  color: var(--text-light);
  font-family: var(--font-mono);
  margin-bottom: 6px;
}
.kb-card .kb-card-title {
  font-size: .9rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 8px;
}
.kb-card .kb-card-desc {
  font-size: .78rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ── Content Category List ────────────────────────────── */
.category-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--card-border);
}
.category-list-item:last-child { border-bottom: none; }
.category-list-item .cat-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem;
  margin-right: 12px;
  flex-shrink: 0;
}
.category-list-item .cat-info { flex: 1; }
.category-list-item .cat-name {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text);
}
.category-list-item .cat-desc {
  font-size: .75rem;
  color: var(--text-light);
}
.category-list-item .cat-count {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text);
  text-align: right;
}
.category-list-item .cat-count small {
  display: block;
  font-size: .65rem;
  color: var(--text-light);
  font-weight: 400;
}

/* ── Auth Pages ───────────────────────────────────────── */
.auth-container {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 32px;
  background: var(--bg);
}
.auth-card { width: 100%; max-width: 400px; }
.auth-card .auth-logo {
  text-align: center;
  margin-bottom: 32px;
}
.auth-card .auth-logo .logo-icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 12px;
}
.auth-card h2 {
  text-align: center; margin-bottom: 8px;
  font-size: 1.6rem; color: var(--text);
}
.auth-card .subtitle {
  text-align: center; color: var(--text-dim);
  font-size: .9rem; margin-bottom: 28px;
}
.auth-card .alt-link {
  text-align: center; margin-top: 20px;
  font-size: .85rem; color: var(--text-dim);
}
.auth-card .alt-link a { color: var(--accent); font-weight: 500; }
.auth-error {
  background: rgba(232,131,124,.08);
  border: 1px solid var(--accent-soft);
  border-radius: var(--radius-input);
  padding: 12px 16px;
  color: var(--accent);
  font-size: .85rem;
  margin-bottom: 16px;
  display: none;
}
.auth-error.show { display: block; }

/* ── Token Display ────────────────────────────────────── */
.token-display {
  background: var(--bg-warm);
  border: 2px solid var(--accent);
  border-radius: var(--radius-input);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--accent);
  word-break: break-all;
}
.token-warning {
  color: var(--accent);
  font-size: .8rem;
  font-weight: 600;
  margin-top: 10px;
  text-align: center;
}

/* ── Token List ───────────────────────────────────────── */
.token-list-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--card-border);
}
.token-list-item:last-child { border-bottom: none; }
.token-list-item .token-info { flex: 1; }
.token-list-item .token-label { font-weight: 500; color: var(--text); font-size: .9rem; }
.token-list-item .token-meta {
  font-size: .78rem; color: var(--text-dim);
  font-family: var(--font-mono);
}

/* ── Modal ────────────────────────────────────────────── */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.3); z-index: 500;
  align-items: center; justify-content: center;
  backdrop-filter: blur(2px);
}
.modal-overlay.show { display: flex; }
.modal {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius-card); padding: var(--pad-card);
  width: 90%; max-width: 460px;
  box-shadow: 0 8px 32px rgba(0,0,0,.1);
}
.modal h3 { margin-bottom: 16px; font-size: 1.2rem; }
.modal .modal-actions {
  display: flex; gap: 12px; margin-top: 20px; justify-content: flex-end;
}

/* ── Profile Page ─────────────────────────────────────── */
.profile-header {
  display: flex; align-items: center; gap: 20px; margin-bottom: 28px;
}
.profile-avatar {
  width: 64px; height: 64px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 1.5rem;
  font-weight: 700; color: #fff;
}
.profile-info h2 { margin-bottom: 4px; font-size: 1.4rem; }
.profile-info .meta {
  font-size: .8rem; color: var(--text-dim);
  font-family: var(--font-mono);
}
.profile-subtitle {
  font-size: .9rem;
  color: var(--text-dim);
  font-style: italic;
  margin-bottom: 8px;
}
.profile-uid {
  font-size: .82rem;
  color: var(--text-light);
  font-family: var(--font-mono);
}

/* ── Notification ─────────────────────────────────────── */
.notif-item {
  padding: 12px 0; border-bottom: 1px solid var(--card-border);
  cursor: pointer;
}
.notif-item:last-child { border-bottom: none; }
.notif-item.unread { border-left: 3px solid var(--accent); padding-left: 12px; }
.notif-item .notif-title { font-weight: 500; color: var(--text); font-size: .9rem; }
.notif-item .notif-content { color: var(--text-dim); font-size: .85rem; margin-top: 4px; }
.notif-item .notif-time {
  font-size: .72rem; color: var(--text-light);
  font-family: var(--font-mono); margin-top: 4px;
}

/* ── Quick Links ──────────────────────────────────────── */
.quick-link {
  display: block;
  padding: 12px 0;
  border-bottom: 1px solid var(--card-border);
  color: var(--text);
  font-size: .88rem;
  font-weight: 500;
  transition: color .2s;
}
.quick-link:last-child { border-bottom: none; }
.quick-link:hover { color: var(--accent); }
.quick-link .ql-desc {
  display: block;
  font-size: .75rem;
  color: var(--text-light);
  font-weight: 400;
  margin-top: 2px;
}

/* ── Announcement Card ────────────────────────────────── */
.announcement-card {
  background: var(--olive-light);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-card);
  padding: var(--pad-card);
  margin-bottom: var(--gap-card);
}
.announcement-card .ann-label {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--olive);
  margin-bottom: 10px;
}
.announcement-card p {
  font-size: .9rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ── Section Link (进入动态 →) ─────────────────────────── */
.section-link {
  display: block;
  text-align: center;
  padding: 14px;
  border-top: 1px solid var(--card-border);
  color: var(--text-dim);
  font-size: .85rem;
  transition: color .2s;
  margin-top: 8px;
}
.section-link:hover { color: var(--accent); }

/* ── Breadcrumb ───────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: .85rem;
  color: var(--text-dim);
}
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb .sep { color: var(--text-light); }
.breadcrumb .current { color: var(--text); font-weight: 500; }

/* ── Page Header ──────────────────────────────────────── */
.page-header {
  margin-bottom: 28px;
}
.page-header h1 {
  font-size: 2.4rem;
  margin-bottom: 4px;
}
.page-header .page-subtitle {
  font-size: 1rem;
  color: var(--text-dim);
  font-style: italic;
  font-family: var(--font-serif);
}

/* ── Top Bar (search + actions) ───────────────────────── */
.top-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--gap-card);
}
.top-bar .search-bar { flex: 1; margin-bottom: 0; }

/* ── Toggle Tabs (频道/聊天) ──────────────────────────── */
.toggle-tabs {
  display: flex;
  background: var(--bg-warm);
  border-radius: var(--radius-pill);
  padding: 3px;
  margin-bottom: 20px;
  border: 1px solid var(--card-border);
}
.toggle-tabs button {
  flex: 1;
  padding: 8px 20px;
  border: none;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-dim);
  font-size: .85rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all .2s;
}
.toggle-tabs button.active {
  background: var(--card);
  color: var(--text);
  font-weight: 500;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 1100px) {
  .aside-area { display: none; }
  .chat-input-bar { right: 40px; }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform .3s ease;
    box-shadow: none;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0,0,0,.1);
  }
  .main-layout {
    margin-left: 0;
  }
  .content-area {
    padding: 20px 16px;
  }

  /* Timeline mobile */
  .timeline-time {
    width: 42px;
    padding-right: 10px;
    font-size: .65rem;
  }
  .timeline-event {
    padding-left: 10px;
  }
  .event-home-update {
    padding: 12px 14px;
  }
  .event-home-update .event-title {
    font-size: .9rem;
  }

  /* Mobile bottom nav */
  .mobile-nav {
    display: flex !important;
  }
  .chat-input-bar {
    left: 16px;
    right: 16px;
    bottom: 80px;
  }
  .back-to-latest {
    right: 16px;
    bottom: 90px;
  }

  /* Footer mobile */
  .site-footer {
    margin-left: 0;
    padding: 16px;
    padding-bottom: 70px;
  }

  /* Stats grid */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* KB grid */
  .kb-grid {
    grid-template-columns: 1fr;
  }

  /* Forum post row */
  .forum-post-row .post-reply-count {
    display: none;
  }

  /* Page header */
  .page-header h1 {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  .content-area {
    padding: 16px 12px;
  }
  .card {
    padding: 16px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .stat-item {
    padding: 10px 12px;
  }
  .tag-filter {
    gap: 6px;
  }
  .tag-filter button {
    padding: 5px 12px;
    font-size: .78rem;
  }
}

/* ── Mobile Bottom Nav ────────────────────────────────── */
.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--card);
  border-top: 1px solid var(--card-border);
  padding: 8px 0;
  z-index: 200;
  justify-content: space-around;
}
.mobile-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 4px 12px;
  color: var(--text-dim);
  font-size: .65rem;
  font-weight: 500;
  transition: color .2s;
}
.mobile-nav a.active {
  color: var(--accent);
}
.mobile-nav a .nav-icon {
  font-size: 1.1rem;
}

/* ── Mobile Header ────────────────────────────────────── */
.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  background: var(--card);
  border-bottom: 1px solid var(--card-border);
  padding: 12px 16px;
  z-index: 150;
  align-items: center;
  justify-content: space-between;
}
.mobile-header .menu-btn {
  background: none; border: none;
  font-size: 1.3rem; cursor: pointer;
  color: var(--text);
  padding: 4px;
}
.mobile-header .mh-logo {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}

@media (max-width: 768px) {
  .mobile-nav { display: flex; }
  .mobile-header { display: flex; }
  .content-area { padding-top: 70px; padding-bottom: 80px; }
}

/* ── Footer ───────────────────────────────────────────── */
.site-footer {
  margin-left: var(--sidebar-w);
  padding: 24px 40px;
  text-align: center;
  border-top: 1px solid var(--card-border);
}
.footer-content {
  font-size: .78rem;
  color: var(--text-light);
  font-family: var(--font-mono);
}
.footer-content strong {
  color: var(--text-dim);
  font-weight: 600;
}
.footer-sep {
  margin: 0 8px;
  color: var(--text-light);
}

/* ─ Overlay for mobile sidebar ───────────────────────── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.2);
  z-index: 99;
}
.sidebar-overlay.show {
  display: block;
}