:root {
  --bg: #ffffff;
  --bg-soft: #f5f5f5;
  --card: #ffffff;
  --border: #e5e5e5;
  --text: #0a0a0a;
  --muted: #737373;
  --primary: #0a0a0a;
  --primary-hover: #262626;
}

* { box-sizing: border-box; }

body.admin-body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-soft);
  color: var(--text);
  display: flex;
}

.admin-sidebar {
  width: 240px;
  min-height: 100vh;
  background: var(--bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.admin-brand-mark {
  width: 36px;
  height: 36px;
  border: 2px solid var(--text);
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 14px;
}

.admin-brand strong { display: block; font-size: 15px; }
.admin-brand small { color: var(--muted); font-size: 12px; }

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.admin-nav-item {
  border: none;
  background: transparent;
  color: var(--muted);
  text-align: left;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}

.admin-nav-item:hover { background: var(--bg-soft); color: var(--text); }

.admin-nav-item.active {
  background: var(--text);
  color: #fff;
}

.admin-sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.admin-link {
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
  padding: 6px 10px;
}

.admin-link.muted { color: var(--muted); }

.admin-main {
  flex: 1;
  padding: 24px 28px 40px;
  overflow-x: hidden;
}

.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.admin-topbar h1 { margin: 0; font-size: 26px; font-weight: 800; }
.admin-topbar-sub { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

.admin-btn {
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.admin-btn.primary { background: var(--primary); color: #fff; }
.admin-btn.primary:hover { background: var(--primary-hover); }
.admin-btn.ghost {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
}
.admin-btn.danger {
  background: var(--bg-soft);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 6px 10px;
  font-size: 12px;
}

.admin-tab { display: none; }
.admin-tab.active { display: block; }

.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.admin-stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.admin-stat-card .label {
  display: block;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.admin-stat-card strong { font-size: 24px; }

.admin-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 14px;
}

.admin-panel h2 { margin: 0 0 8px; font-size: 17px; font-weight: 700; }

.admin-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.admin-hint { color: var(--muted); font-size: 13px; margin: 0 0 14px; }

.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.admin-field.full { grid-column: 1 / -1; }

.admin-field span {
  display: block;
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 5px;
}

.admin-field input,
.admin-field select,
.admin-field textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  font-size: 14px;
}

.admin-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 6px 0;
}

.admin-toggle input { display: none; }

.admin-toggle-ui {
  width: 44px;
  height: 24px;
  border-radius: 999px;
  background: var(--border);
  position: relative;
  transition: 0.2s;
}

.admin-toggle-ui::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--border);
  transition: 0.2s;
}

.admin-toggle input:checked + .admin-toggle-ui { background: var(--text); }
.admin-toggle input:checked + .admin-toggle-ui::after {
  transform: translateX(20px);
  border-color: var(--text);
}

.admin-mode-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.admin-mode-card {
  display: flex;
  gap: 10px;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  cursor: pointer;
  background: var(--bg-soft);
}

.admin-mode-card:has(input:checked) {
  border-color: var(--text);
  background: var(--bg);
}

.admin-mode-card strong { display: block; font-size: 13px; margin-bottom: 4px; }
.admin-mode-card p { margin: 0; font-size: 12px; color: var(--muted); }

.admin-preview-box {
  margin-top: 12px;
  padding: 12px;
  border-radius: 8px;
  border: 1px dashed var(--border);
  font-size: 13px;
  background: var(--bg-soft);
}

.admin-preview-box code { word-break: break-all; }

.admin-actions { display: flex; flex-wrap: wrap; gap: 8px; }

.admin-alert {
  padding: 12px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
  font-size: 14px;
  border: 1px solid var(--border);
}

.admin-alert.ok { background: var(--bg-soft); }
.admin-alert.err { background: #fafafa; color: var(--muted); }
.admin-alert.hidden { display: none; }

.admin-files-list { display: flex; flex-direction: column; gap: 8px; }

.admin-file-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-soft);
}

.admin-file-row strong { font-size: 14px; word-break: break-all; }
.admin-file-row small { color: var(--muted); font-size: 12px; }
.admin-file-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.admin-empty { color: var(--muted); text-align: center; padding: 20px; }

body.admin-login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--bg-soft);
  margin: 0;
  font-family: Inter, sans-serif;
  color: var(--text);
}

.admin-login-card {
  width: min(380px, calc(100% - 32px));
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.admin-form label span {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.admin-form input {
  width: 100%;
  padding: 11px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  margin-bottom: 14px;
}

.admin-login-card .admin-btn { width: 100%; margin-bottom: 10px; }

@media (max-width: 900px) {
  body.admin-body { flex-direction: column; }
  .admin-sidebar { width: 100%; height: auto; position: static; }
  .admin-nav { flex-direction: row; overflow-x: auto; }
  .admin-nav-item { white-space: nowrap; }
  .admin-grid { grid-template-columns: 1fr; }
}