:root {
  color-scheme: dark;
  --bg: #0c0d10;
  --panel: #17191f;
  --panel-2: #20232b;
  --text: #f5f5f6;
  --muted: #a9adb8;
  --line: #30343f;
  --red: #e3242b;
  --red-dark: #9c171c;
  --green: #35c46a;
  --amber: #ffb020;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  padding-bottom: 76px;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
}
a { color: inherit; text-decoration: none; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(12, 13, 16, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 34px;
  border: 1px solid var(--red);
  background: linear-gradient(135deg, var(--red-dark), #111);
  font-weight: 800;
}
.brand small { display: block; color: var(--muted); font-size: 11px; }
.top-actions { display: flex; align-items: center; gap: 8px; }
main { width: min(1040px, 100%); margin: 0 auto; padding: 18px 14px; }
.hero { padding: 28px 0 18px; }
.eyebrow { margin: 0 0 10px; color: var(--red); font-size: 12px; font-weight: 800; }
h1 { margin: 0 0 18px; font-size: 30px; line-height: 1.18; }
h2 { margin: 0 0 14px; font-size: 21px; }
h3 { margin: 0 0 8px; font-size: 17px; }
p { line-height: 1.7; }
.search { display: flex; gap: 8px; margin-bottom: 12px; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #111318;
  color: var(--text);
  padding: 12px;
  font: inherit;
}
textarea { resize: vertical; }
button, .button {
  border: 0;
  border-radius: 8px;
  padding: 11px 13px;
  font-weight: 800;
  cursor: pointer;
}
.primary, .search button { background: var(--red); color: #fff; }
.secondary { background: var(--panel-2); color: var(--text); border: 1px solid var(--line); }
.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); }
.danger { background: #5a1518; color: #fff; }
.hero-actions, .row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.notice, .errors {
  margin: 12px 0;
  padding: 12px;
  border-radius: 8px;
  background: rgba(53, 196, 106, .12);
  color: var(--green);
}
.errors { background: rgba(227, 36, 43, .12); color: #ff858a; }
.official-notice {
  display: grid;
  gap: 4px;
  margin-bottom: 14px;
  padding: 12px;
  border: 1px solid rgba(227, 36, 43, .45);
  border-radius: 8px;
  background: rgba(227, 36, 43, .1);
  color: var(--text);
}
.official-notice span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 12px 0 18px; }
.stats div, .stats a, .panel, .question-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.stats div, .stats a { padding: 14px; }
.stats strong, .stats span { display: block; }
.stats strong { font-size: 22px; }
.stats span, .muted { color: var(--muted); font-size: 13px; }
.tabs { display: flex; gap: 8px; overflow-x: auto; margin-bottom: 12px; }
.tab { flex: 0 0 auto; background: var(--panel); color: var(--muted); border: 1px solid var(--line); }
.tab.active { color: var(--text); border-color: var(--red); }
.question-list { display: grid; gap: 10px; }
.question-card {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 10px;
  padding: 12px;
}
.question-main h2, .question-main h3 { margin: 0 0 8px; line-height: 1.35; }
.question-main p { margin: 0 0 10px; color: var(--muted); }
.status {
  align-self: start;
  padding: 7px 8px;
  border-radius: 8px;
  text-align: center;
  font-size: 12px;
  font-weight: 800;
}
.status.open { background: rgba(255, 176, 32, .14); color: var(--amber); }
.status.solved { background: rgba(53, 196, 106, .14); color: var(--green); }
.status.hidden { background: rgba(169, 173, 184, .14); color: var(--muted); }
.meta { display: flex; flex-wrap: wrap; gap: 6px; }
.meta span, .tag {
  padding: 5px 8px;
  border-radius: 999px;
  background: #111318;
  color: var(--muted);
  font-size: 12px;
}
.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.category-grid a, .panel { padding: 14px; }
.form { display: grid; gap: 13px; }
.form label { display: grid; gap: 7px; color: var(--muted); font-size: 13px; }
.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.form-row { display: grid; gap: 10px; }
.content { white-space: pre-wrap; line-height: 1.8; }
.content a {
  color: #78b8ff;
  text-decoration: underline;
  text-underline-offset: 3px;
  overflow-wrap: anywhere;
}
.content a:hover, .content a:focus-visible { color: #add4ff; }
.answer { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 14px; }
.answer-images {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}
.answer-images img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #111318;
}
.bottom-nav {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  background: rgba(12, 13, 16, .96);
}
.bottom-nav a { padding: 13px 4px; color: var(--muted); text-align: center; font-size: 12px; }
.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  width: min(1040px, 100%);
  margin: 16px auto 0;
  padding: 18px 14px 94px;
  color: var(--muted);
  font-size: 13px;
}
.site-footer a {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.admin-grid { display: grid; gap: 12px; }
.admin-user-list { display: grid; gap: 12px; }
.admin-user, .admin-log {
  display: grid;
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}
.admin-user:first-child, .admin-log:first-child { border-top: 0; }
.admin-log-list { display: grid; gap: 12px; }
.admin-log-meta {
  overflow-x: auto;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #111318;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}
.pagination { margin-top: 16px; color: var(--muted); }
@media (min-width: 760px) {
  body { padding-bottom: 0; }
  h1 { max-width: 720px; font-size: 46px; }
  .hero { padding-top: 52px; }
  .category-grid { grid-template-columns: repeat(4, 1fr); }
  .form-row { grid-template-columns: 1fr 1fr; }
  .answer-images { grid-template-columns: repeat(3, minmax(0, 180px)); }
  .bottom-nav { display: none; }
  .site-footer { padding-bottom: 28px; }
  .admin-grid { grid-template-columns: 1fr 1fr; }
  .admin-user {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}