:root {
  --bg: #0f1420;
  --panel: #161d2e;
  --panel-2: #1d2540;
  --text: #e8ecf6;
  --muted: #8b93a7;
  --accent: #6d5efc;
  --accent-2: #35d0ba;
  --danger: #ff6b6b;
  --border: #2a3350;
}

* { box-sizing: border-box; }

.hidden { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-size: 20px;
  font-weight: 700;
}
.brand span { color: var(--accent-2); font-weight: 400; }

.powered {
  font-size: 13px;
  color: var(--muted);
}
.powered strong { color: var(--accent); }

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  max-width: 980px;
  margin: 32px auto;
  padding: 0 20px;
}

.trending {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  height: fit-content;
}
.trending h2 { font-size: 14px; margin: 0 0 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
#trending-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
#trending-list li { display: flex; justify-content: space-between; font-size: 14px; }
#trending-list .count { color: var(--accent-2); font-weight: 700; }
.hint { font-size: 12px; color: var(--muted); margin-top: 16px; line-height: 1.5; }

.stage { min-height: 480px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
}
.panel.hidden { display: none; }

.panel h1 { margin: 0 0 8px; font-size: 24px; }
.sub { color: var(--muted); margin: 0 0 20px; }

.topic-list { display: flex; flex-direction: column; gap: 10px; }
.topic-btn {
  text-align: left;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  font-size: 15px;
}
.topic-btn:hover { border-color: var(--accent); }
.topic-btn.active { border-color: var(--accent-2); background: #1c2a3a; }

.status { margin-top: 16px; color: var(--accent-2); font-size: 14px; min-height: 20px; }

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.chat-topic { font-weight: 700; font-size: 16px; }
.chat-you { font-size: 12px; color: var(--muted); }
.ghost-btn {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}
.ghost-btn:hover { border-color: var(--accent); }
.ghost-btn.danger:hover { border-color: var(--danger); color: var(--danger); }

.tip-banner {
  margin-top: 14px;
  padding: 10px 14px;
  background: #1a2440;
  border: 1px dashed var(--accent);
  border-radius: 10px;
  font-size: 13px;
  color: var(--accent-2);
}
.tip-banner a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}
.tip-banner a:hover { text-decoration: underline; }
.tip-banner.ai-tip {
  background: #241a44;
  border-style: solid;
  border-color: var(--accent-2);
}

.messages {
  height: 280px;
  overflow-y: auto;
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 4px;
}
.msg { max-width: 75%; padding: 8px 12px; border-radius: 10px; font-size: 14px; }
.msg.me { align-self: flex-end; background: var(--accent); color: #fff; }
.msg.peer { align-self: flex-start; background: var(--panel-2); }
.msg.system { align-self: center; color: var(--muted); font-size: 12px; background: none; }

.chat-form { display: flex; gap: 8px; margin-top: 14px; }
.chat-form input {
  flex: 1;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
}
.chat-form button {
  padding: 10px 18px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}

@media (max-width: 720px) {
  .layout { grid-template-columns: 1fr; }
}

.back-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
}
.back-link:hover { color: var(--text); }

.directory {
  max-width: 900px;
  margin: 48px auto;
  padding: 0 20px;
}
.directory h1 { font-size: 28px; margin: 0 0 8px; }
.directory .sub { color: var(--muted); margin: 0 0 32px; max-width: 560px; }

.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.brand-card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  text-decoration: none;
  color: var(--text);
  transition: border-color .15s;
}
.brand-card:hover { border-color: var(--card-accent, var(--accent)); }

.swatch {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  margin-bottom: 14px;
}
.card-name { font-weight: 700; font-size: 16px; margin-bottom: 4px; }
.card-tagline { font-size: 13px; color: var(--muted); }

.demo-note {
  margin: 20px 0 28px;
  padding: 12px 16px;
  background: #1a2440;
  border: 1px dashed var(--accent);
  border-radius: 10px;
  font-size: 13px;
  color: var(--accent-2);
  max-width: 560px;
}

/* Auth + tabs */
.auth-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
}

.tabs {
  display: flex;
  gap: 4px;
  max-width: 980px;
  margin: 20px auto 0;
  padding: 0 20px;
}
.tab-btn {
  padding: 10px 18px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.tab-btn.active { color: var(--text); border-bottom-color: var(--accent); }
.tab-btn:hover { color: var(--text); }

.ghost-btn.small { padding: 6px 10px; font-size: 12px; }

/* Community view */
.community-layout {
  max-width: 980px;
  margin: 24px auto;
  padding: 0 20px;
}
.community-layout.hidden { display: none; }

.login-form { display: flex; gap: 10px; max-width: 420px; margin-top: 16px; }
.login-form input {
  flex: 1;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
}
.login-form button {
  padding: 10px 18px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.dev-link-box {
  margin-top: 14px;
  padding: 10px 14px;
  background: #1a2440;
  border: 1px dashed var(--accent);
  border-radius: 10px;
  font-size: 13px;
  color: var(--accent-2);
}
.dev-link-box a { color: var(--accent); font-weight: 600; }

.community-cols {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 24px;
}
@media (max-width: 760px) {
  .community-cols { grid-template-columns: 1fr; }
}
.feed-col h2, .connections-col h2 { font-size: 16px; margin: 0 0 14px; }

.feed-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
}
.feed-card-header {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}
.feed-card h3 { margin: 0 0 6px; font-size: 16px; }
.feed-card p { margin: 0 0 10px; font-size: 14px; color: var(--text); line-height: 1.5; }
.feed-link { color: var(--accent); font-size: 13px; font-weight: 600; text-decoration: none; display: inline-block; margin-bottom: 10px; }
.feed-link:hover { text-decoration: underline; }

.rating-row { display: flex; align-items: center; gap: 4px; margin-bottom: 10px; }
.star-btn {
  background: none;
  border: none;
  font-size: 18px;
  color: var(--border);
  cursor: pointer;
  padding: 0;
}
.star-btn.filled { color: var(--accent-2); }
.rating-avg { font-size: 12px; color: var(--muted); margin-left: 8px; }

.comments-box.hidden { display: none; }
.comments-box { margin-top: 10px; border-top: 1px solid var(--border); padding-top: 10px; }
.comment-row { font-size: 13px; margin-bottom: 8px; }
.comment-form { display: flex; gap: 8px; margin-top: 8px; }
.comment-form input {
  flex: 1;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 13px;
}
.comment-form button {
  padding: 8px 14px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-size: 13px;
}

.connection-row {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 10px;
}
.connection-name { font-weight: 600; font-size: 14px; }
.connection-meta { font-size: 12px; color: var(--muted); margin-top: 2px; }