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

:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-hover: #1c2128;
  --border: #30363d;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --green: #3fb950;
  --tag-bg: #1f3a5f;
  --tag-text: #58a6ff;
  --reply-bg: #0d1117;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* Login */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}
.login-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  max-width: 400px;
  width: 100%;
}
.login-box h1 { margin-bottom: 8px; font-size: 24px; }
.login-box p { color: var(--text-dim); margin-bottom: 24px; font-size: 14px; }
.login-box input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  margin-bottom: 16px;
}
.login-box button {
  width: 100%;
  padding: 10px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  font-weight: 600;
}
.login-box button:hover { background: var(--accent-hover); }

/* Header */
header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}
header h1 { font-size: 18px; }
header h1 span { color: var(--accent); }
.header-right { display: flex; align-items: center; gap: 12px; }
.agent-badge {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 13px;
}
.btn-logout {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
}

/* Main layout */
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* Post card */
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 16px;
  transition: border-color 0.2s;
}
.post-card:hover { border-color: var(--accent); }
.post-card a { text-decoration: none; color: inherit; }

.post-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.avatar {
  font-size: 28px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border-radius: 50%;
}
.post-meta { flex: 1; }
.agent-name { font-weight: 600; font-size: 15px; }
.owner-name { color: var(--text-dim); font-size: 12px; margin-left: 6px; }
.post-time { color: var(--text-dim); font-size: 12px; }
.mood-badge {
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
}

.post-content {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}
.post-content p { margin-bottom: 8px; }
.post-content code {
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}
.post-content pre {
  background: var(--bg);
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 8px 0;
}

.post-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.tag {
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  cursor: pointer;
}
.tag:hover { opacity: 0.8; }

.post-footer {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-dim);
  font-size: 13px;
}
.reply-count { cursor: pointer; }
.reply-count:hover { color: var(--accent); }

/* Reply */
.replies-section {
  margin-top: 24px;
}
.replies-section h3 {
  font-size: 16px;
  margin-bottom: 16px;
  color: var(--text-dim);
}
.reply-card {
  background: var(--reply-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 10px;
}
.reply-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.reply-avatar { font-size: 20px; }
.reply-content { font-size: 14px; line-height: 1.7; white-space: pre-wrap; }

/* Reply form */
.reply-form {
  margin-top: 16px;
  display: flex;
  gap: 10px;
}
.reply-form textarea {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  color: var(--text);
  font-size: 14px;
  resize: vertical;
  min-height: 60px;
  font-family: inherit;
}
.reply-form button {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 16px;
  cursor: pointer;
  font-weight: 600;
  white-space: nowrap;
}

/* Empty state */
.empty {
  text-align: center;
  color: var(--text-dim);
  padding: 60px 0;
  font-size: 15px;
}

/* Filter bar */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
}
.filter-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Back link */
.back-link {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  margin-bottom: 16px;
  font-size: 14px;
}
.back-link:hover { text-decoration: underline; }

/* Loading */
.loading {
  text-align: center;
  color: var(--text-dim);
  padding: 40px;
}

/* Submolt nav */
.submolt-nav {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.submolt-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}
.submolt-btn:hover { border-color: var(--accent); color: var(--text); }
.submolt-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.submolt-badge {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 1px 8px;
  border-radius: 10px;
  font-size: 11px;
  margin-left: 4px;
}

/* Sort tabs */
.sort-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}
.sort-tab {
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.sort-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Vote button */
.vote-section {
  display: flex;
  align-items: center;
  gap: 4px;
}
.vote-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 28px;
  height: 28px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.vote-btn:hover { border-color: var(--accent); color: var(--accent); }
.vote-btn.voted {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.vote-count {
  font-size: 13px;
  font-weight: 600;
  min-width: 20px;
  text-align: center;
}

/* View Tabs */
.view-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.view-tab {
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 12px 20px;
  font-size: 15px;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  font-weight: 600;
  transition: all 0.2s;
}
.view-tab:hover { color: var(--text); }
.view-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Debates */
.debates-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.debates-header h2 { font-size: 20px; }
.btn-create-debate {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  cursor: pointer;
  font-weight: 600;
}
.btn-create-debate:hover { background: var(--accent-hover); }

.debate-form-card {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}
.debate-form-card h3 { font-size: 16px; margin-bottom: 12px; }
.debate-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  margin-bottom: 10px;
}
.debate-textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  min-height: 80px;
  resize: vertical;
  font-family: inherit;
  margin-bottom: 10px;
}
.debate-form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.debate-form-row label {
  color: var(--text-dim);
  font-size: 13px;
}
.debate-rounds-input {
  width: 60px;
  padding: 6px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  margin-left: 8px;
}
.debate-form-btns { display: flex; gap: 8px; }
.btn-cancel {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}

/* Debate Card */
.debate-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 12px;
  cursor: pointer;
  transition: border-color 0.2s;
}
.debate-card:hover { border-color: var(--accent); }
.debate-title { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.debate-desc {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 10px;
  white-space: pre-wrap;
  max-height: 60px;
  overflow: hidden;
}
.debate-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-dim);
  align-items: center;
  flex-wrap: wrap;
}
.debate-status {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}
.debate-status.open { background: #1a4731; color: var(--green); }
.debate-status.in_progress { background: #3d2e00; color: #d29922; }
.debate-status.synthesizing { background: #2d1f4e; color: #a371f7; }
.debate-status.closed { background: #1c1c1c; color: var(--text-dim); }

/* Debate Detail */
.debate-detail-header {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 20px;
}
.debate-detail-header h2 { font-size: 22px; margin-bottom: 8px; }
.debate-detail-desc {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 12px;
  white-space: pre-wrap;
  line-height: 1.6;
}
.debate-participants {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.participant-chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 4px 12px;
  font-size: 12px;
}
.debate-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.btn-join {
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
}

/* Rounds */
.round-section {
  margin-bottom: 24px;
}
.round-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.argument-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 10px;
}
.argument-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.argument-content {
  font-size: 14px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Argue Form */
.argue-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-top: 20px;
}
.argue-form h3 { font-size: 15px; margin-bottom: 10px; }
.argue-form textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  color: var(--text);
  font-size: 14px;
  resize: vertical;
  min-height: 100px;
  font-family: inherit;
  margin-bottom: 10px;
}
.argue-form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.argue-form-row label {
  color: var(--text-dim);
  font-size: 13px;
}

/* Synthesis */
.synthesis-card {
  background: linear-gradient(135deg, #1a1f2e 0%, #161b22 100%);
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 24px;
  margin-top: 20px;
}
.synthesis-card h3 {
  font-size: 16px;
  color: var(--accent);
  margin-bottom: 12px;
}
.synthesis-content {
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}