/* Forum styling — reuses the main site's visual tokens (styles.css :root) so /forum/
   reads as part of xengineering.net. Self-contained like the other subpages; not linked
   to styles.css. All inputs stay at 16px+ so iOS never auto-zooms on focus. */
:root {
  --bg: #f4f5f3;
  --surface: #ffffff;
  --panel: #edf1ef;
  --text: #111111;
  --muted: #4a5451;
  --line: #d7ddda;
  --accent: #0d8f6f;
  --accent-dark: #0a6e56;
  --max-width: 900px;
  --radius: 18px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: linear-gradient(155deg, #f1f5f3 0%, #ffffff 35%, #e8efea 65%, #eef3ef 100%) fixed;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.wrap { width: min(calc(100% - 32px), var(--max-width)); margin: 0 auto; }
a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.forum-top {
  background: rgba(244, 245, 243, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.forum-top-inner { display: flex; align-items: center; justify-content: space-between; height: 52px; }
.forum-logo { font-weight: 700; color: var(--text); letter-spacing: 0.2px; }
.forum-logo:hover { text-decoration: none; color: var(--accent-dark); }
.forum-links { display: flex; align-items: center; gap: 18px; }
.forum-links a { color: var(--muted); font-size: 15px; }
.forum-new-btn {
  background: var(--accent); color: #ffffff !important; padding: 7px 14px;
  border-radius: 10px; font-weight: 600;
}
.forum-new-btn:hover { background: var(--accent-dark); text-decoration: none; }

.forum-main { flex: 1; padding: 28px 0 56px; }
.forum-h1 { font-size: 28px; font-weight: 750; letter-spacing: -0.3px; margin-bottom: 6px; }
.topic-h1 { font-size: 24px; margin-top: 4px; }
.forum-sub { color: var(--muted); margin-bottom: 20px; }
.crumbs { font-size: 14px; color: var(--muted); margin-bottom: 10px; }

.cat-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.cat-tab {
  padding: 6px 13px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--surface); color: var(--muted); font-size: 14px;
}
.cat-tab:hover { text-decoration: none; border-color: var(--accent); color: var(--accent-dark); }
.cat-tab.active { background: var(--accent); border-color: var(--accent); color: #ffffff; }

.search-form { display: flex; gap: 8px; margin-bottom: 18px; }
.search-form input {
  flex: 1; padding: 9px 13px; border: 1px solid var(--line); border-radius: 10px;
  font-size: 16px; background: var(--surface); font-family: inherit;
}
.search-note { font-size: 14px; color: var(--muted); margin-bottom: 12px; }

.topic-list { display: flex; flex-direction: column; gap: 10px; }
.topic-row {
  display: block; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px 18px; color: var(--text);
}
.topic-row:hover { text-decoration: none; border-color: var(--accent); }
.topic-row-main { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.topic-title { font-weight: 650; }
/* Must wrap: three chips in one row is 315px wide and forces a 347px layout at 320px. */
.topic-chips { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.topic-row-meta { font-size: 13.5px; color: var(--muted); margin-top: 3px; }

.chip {
  display: inline-block; font-size: 11.5px; font-weight: 700; letter-spacing: 0.3px;
  text-transform: uppercase; padding: 2px 8px; border-radius: 999px;
  background: var(--panel); color: var(--muted);
}
.chip-staff { background: var(--accent); color: #ffffff; }
.chip-pinned { background: #eadfc4; color: #6d5820; }
.chip-announcements { background: #dcebe4; color: var(--accent-dark); }

.empty-state {
  background: var(--surface); border: 1px dashed var(--line); border-radius: var(--radius);
  padding: 34px 18px; text-align: center; color: var(--muted);
}

.pager { display: flex; gap: 10px; justify-content: center; margin-top: 20px; }

.topic-head-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 6px 0 18px; }

.post-list { display: flex; flex-direction: column; gap: 12px; }
.post {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 18px;
}
.post-staff { border-left: 4px solid var(--accent); }
.post-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.post-author { font-weight: 700; }
.post-time { margin-left: auto; font-size: 13px; color: var(--muted); }
.post-body { overflow-wrap: break-word; }
.post-body p { margin-bottom: 10px; }
.post-body p:last-child { margin-bottom: 0; }
.post-body pre {
  background: #10201b; color: #d7e8e2; border-radius: 10px; padding: 12px 14px;
  overflow-x: auto; margin: 10px 0; font-size: 13.5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.post-images { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.post-images img {
  max-height: 180px; max-width: 100%; border-radius: 10px; border: 1px solid var(--line);
  display: block;
}

.reply-box { margin-top: 26px; }
.reply-h2 { font-size: 19px; margin-bottom: 12px; }
form#forum-form {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px;
}
.form-row { display: block; margin-bottom: 14px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
form#forum-form label { display: block; font-size: 14px; font-weight: 600; color: var(--text); }
form#forum-form .opt { font-weight: 400; color: var(--muted); }
/* 16px is load-bearing: iOS Safari zooms the page on focus of any smaller field, which is
   what surfaces as unexplained sideways scrolling. Applies to the admin field too. */
form#forum-form input[type="text"],
form#forum-form input[type="email"],
form#forum-form-admin input[type="password"],
form#forum-form select,
form#forum-form textarea {
  width: 100%; margin-top: 5px; padding: 9px 12px; font-size: 16px; font-family: inherit;
  border: 1px solid var(--line); border-radius: 10px; background: #fbfcfb; color: var(--text);
}
form#forum-form textarea { resize: vertical; }
form#forum-form input[type="file"] { margin-top: 8px; font-size: 14px; width: 100%; }
form#forum-form input:focus, form#forum-form textarea:focus, form#forum-form select:focus,
form#forum-form-admin input:focus {
  outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent);
}
/* Honeypot: parked far off-screen, not display:none — lazier bots skip hidden inputs. */
.hp-field { position: absolute; left: -9999px; top: -9999px; }
.turnstile-slot { margin-bottom: 12px; }
.form-error {
  background: #f7e3e0; color: #8a2f23; border-radius: 10px; padding: 10px 13px;
  margin-bottom: 12px; font-size: 14.5px;
}
.held-note, .staff-note {
  background: var(--panel); border-radius: 10px; padding: 12px 14px; font-size: 14.5px;
  margin-bottom: 12px;
}

.btn {
  display: inline-block; border: 0; cursor: pointer; font-family: inherit;
  font-size: 16px; font-weight: 650; border-radius: 10px; padding: 10px 18px;
}
.btn-primary { background: var(--accent); color: #ffffff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }
.btn-quiet {
  background: var(--surface); border: 1px solid var(--line); color: var(--muted);
  padding: 9px 16px;
}
.btn-quiet:hover { border-color: var(--accent); color: var(--accent-dark); text-decoration: none; }
.btn-admin {
  background: #fff4e5; color: #8a5a1d; font-size: 12.5px; padding: 4px 10px;
  border: 1px solid #ecd9bb;
}
.admin-bar { display: flex; gap: 6px; margin-top: 10px; }
.topic-head-meta .admin-bar { margin-top: 0; margin-left: auto; }

.forum-foot { border-top: 1px solid var(--line); padding: 18px 0 26px; }
.forum-foot .wrap {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between;
  font-size: 13.5px; color: var(--muted);
}
.forum-foot nav { display: flex; gap: 14px; }

@media (max-width: 640px) {
  .form-row-2 { grid-template-columns: 1fr; }
  .forum-h1 { font-size: 23px; }
  .topic-h1 { font-size: 20px; }
  .post, .topic-row, form#forum-form { padding: 13px 14px; }
  .forum-links { gap: 12px; }
  .topic-head-meta .admin-bar { margin-left: 0; }
}