:root {
  --bg: #f5f7fa;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --accent: #4f46e5;
  --border: #e5e7eb;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
.topbar {
  position: sticky; top: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.topbar h1 { margin: 0; font-size: 20px; }
.topbar nav { display: flex; gap: 10px; align-items: center; }
.topbar button, .topbar a {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  font-size: 14px;
}
.topbar button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.topbar-search { flex: 1; display: flex; justify-content: center; padding: 0 16px; }
.topbar-search input {
  width: 100%;
  max-width: 360px;
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
}
.feed { max-width: 640px; margin: 16px auto; padding: 0 12px; }
.post {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.post .author { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.post .author img { width: 40px; height: 40px; border-radius: 50%; background: #e5e7eb; }
.post .author .name { font-weight: 600; }
.post .author .acct { color: var(--muted); font-size: 13px; }
.post .content { line-height: 1.5; overflow-wrap: anywhere; }
.post .content a { color: var(--accent); text-decoration: none; }
.post .content p { margin: 0 0 8px; }
.post .content p:last-child { margin-bottom: 0; }
.post .media { margin-top: 10px; }
.post .media img { max-width: 100%; border-radius: 8px; display: block; }
.post .time { margin-top: 8px; color: var(--muted); font-size: 12px; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.post .time a { color: inherit; text-decoration: none; }
.post .time a:hover { color: var(--accent); }
.post .spoiler { border: 1px dashed var(--border); border-radius: 8px; padding: 8px; margin-bottom: 8px; }
.foot { text-align: center; margin: 16px 0 40px; }
.foot a { color: var(--muted); }
.error { text-align: center; color: var(--muted); padding: 40px; }
/* admin */
.wrap { max-width: 720px; margin: 24px auto; padding: 0 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin-bottom: 16px; }
.card h2 { margin-top: 0; }
input[type=text], input[type=password] { width: 100%; padding: 9px; margin: 6px 0; border: 1px solid var(--border); border-radius: 8px; }
button.primary { background: var(--accent); color: #fff; border: none; padding: 9px 16px; border-radius: 8px; cursor: pointer; }
table { width: 100%; border-collapse: collapse; }
td, th { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); font-size: 14px; }
.danger { color: #dc2626; background: none; border: 1px solid #dc2626; padding: 5px 10px; border-radius: 6px; cursor: pointer; }