:root {
  --border: #e5e7eb;
  --text: #0f172a;
  --muted: #64748b;
  --bg: #ffffff;
  --bg2: #f8fafc;
  --input-bg: #ffffff;
  --topbar-bg: rgba(255,255,255,0.9);
  --shadow: rgba(15, 23, 42, 0.06);
  --hover: #f1f5f9;
  --nav-hover: #eef2ff;
  --primary-border: #c7d2fe;
  --primary-bg: #eef2ff;
  --danger: #dc2626;
  --danger-border: #fecaca;
  --danger-bg: #fff1f2;
}

html.dark {
  --border: rgba(148, 163, 184, 0.25);
  --text: #e5e7eb;
  --muted: #94a3b8;
  --bg: #0b1220;
  --bg2: #0f172a;
  --input-bg: #0b1220;
  --topbar-bg: rgba(15, 23, 42, 0.75);
  --shadow: rgba(0, 0, 0, 0.35);
  --hover: rgba(148, 163, 184, 0.12);
  --nav-hover: rgba(99, 102, 241, 0.18);
  --primary-border: rgba(99, 102, 241, 0.45);
  --primary-bg: rgba(99, 102, 241, 0.18);
  --danger-border: rgba(248, 113, 113, 0.35);
  --danger-bg: rgba(248, 113, 113, 0.12);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg2);
}

.wrap { max-width: 980px; margin: 0 auto; padding: 16px; }

.topbar {
  position: sticky; top: 0;
  background: var(--topbar-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar__inner { display:flex; align-items:center; justify-content:space-between; gap: 16px; }

.brand { font-weight: 800; text-decoration:none; color: var(--text); }
.nav { display:flex; gap: 10px; }
.nav__link { text-decoration:none; color: var(--text); padding: 8px 10px; border-radius: 10px; }
.nav__link:hover { background: var(--nav-hover); }

.auth { display:flex; gap: 10px; align-items:center; flex-wrap: wrap; justify-content:flex-end; }
.muted { color: var(--muted); font-size: 13px; }

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  box-shadow: 0 6px 24px var(--shadow);
  margin: 12px 0;
}

h1,h2,h3 { margin: 10px 0; }
.row { display:flex; gap: 10px; flex-wrap: wrap; align-items: center; }

input, textarea, button {
  font: inherit;
}
input, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--input-bg);
  color: var(--text);
}
textarea { min-height: 120px; resize: vertical; }

.btn {
  border: 1px solid var(--border);
  background: var(--input-bg);
  padding: 8px 12px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn:hover { background: var(--hover); }
.btn--primary { border-color: var(--primary-border); background: var(--primary-bg); }
.btn--danger { border-color: var(--danger-border); background: var(--danger-bg); color: var(--danger); }

.list { display: grid; gap: 12px; }
.thread__meta { display:flex; gap: 10px; flex-wrap: wrap; align-items:center; }
.pill {
  display:inline-block; padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
}

.pill--user {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.avatar {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  flex: 0 0 auto;
}

.authStatus {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.flash {
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 10px 12px;
  border-radius: 14px;
  margin: 12px 0;
}
.flash--ok { border-color: #bbf7d0; background:#f0fdf4; }
.flash--err { border-color: #fecaca; background:#fff1f2; }

html.dark .flash--ok { border-color: rgba(34,197,94,.35); background: rgba(34,197,94,.12); }
html.dark .flash--err { border-color: rgba(239,68,68,.35); background: rgba(239,68,68,.12); }



.footer { padding-bottom: 40px; }
a { color: inherit; }

/* --- Text overflow fixes (long strings / urls) --- */
.content,
.card p,
.card h1,
.card h2,
.card h3 {
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* --- Mobile responsiveness --- */
@media (max-width: 640px) {
  .wrap { padding: 12px; }

  .topbar__inner {
    flex-wrap: wrap;
    gap: 10px;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .auth {
    width: 100%;
    justify-content: space-between;
  }

  /* Make action buttons easier to tap */
  .btn { padding: 10px 12px; border-radius: 14px; }

  /* Avoid tiny side-by-side buttons */
  .row { gap: 8px; }
  .row .btn {
    flex: 1 1 auto;
    min-width: 120px;
  }
}

/* --- Modal (edit dialogs) --- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 9999;
}

.modal {
  width: min(640px, 100%);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 20px 60px var(--shadow);
  overflow: hidden;
}

.modal__header {
  padding: 14px 14px 0 14px;
}

.modal__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
}

.modal__body {
  padding: 12px 14px 8px 14px;
}

.modal__footer {
  padding: 12px 14px 14px 14px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.modal-form textarea { min-height: 160px; }

@media (max-width: 640px) {
  .modal-backdrop { padding: 12px; align-items: flex-end; }
  .modal { border-radius: 18px 18px 0 0; width: 100%; }
}