:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #fafbfc;
  --border: #e3e6ea;
  --text: #1a1d21;
  --muted: #6b7280;
  --accent: #2f6bff;
  --accent-weak: #eaf0ff;
  --danger: #c0392b;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 4px 16px rgba(16, 24, 40, .05);
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --surface: #161b22;
    --surface-2: #1b212b;
    --border: #2a313c;
    --text: #e6e8eb;
    --muted: #9aa4b2;
    --accent: #5a8bff;
    --accent-weak: #1b2740;
    --danger: #e5645a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
a { color: var(--accent); text-decoration: none; }
.muted { color: var(--muted); }

/* ---- Login ---- */
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
  text-align: center;
}
.login-mark { font-size: 44px; }
.login-card h1 { margin: 10px 0 4px; font-size: 1.4rem; }
.btn-google {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  justify-content: center;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.btn-google:hover { background: var(--surface-2); border-color: var(--accent); }
.alert {
  margin-top: 16px;
  background: color-mix(in srgb, var(--danger) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
  color: var(--danger);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: .9rem;
}

/* ---- Topbar ---- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-weight: 700; display: flex; align-items: center; gap: 8px; }
.brand-mark { font-size: 1.2rem; }
.user-menu { display: flex; align-items: center; gap: 14px; font-size: .92rem; }
.user-name { color: var(--muted); }
.avatar { width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--border); }
.link { color: var(--muted); }
.link:hover { color: var(--accent); }

/* ---- Content ---- */
.content { max-width: 1080px; margin: 0 auto; padding: 32px 24px 64px; }
.category { margin-bottom: 34px; }
.category-title {
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin: 0 0 14px;
}
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: transform .12s ease, border-color .12s ease;
}
.tile:hover { transform: translateY(-2px); border-color: var(--accent); }
.tile-icon { font-size: 1.8rem; }
.tile-name { font-weight: 650; display: flex; align-items: center; gap: 8px; }
.tile-desc { color: var(--muted); font-size: .88rem; }
.badge {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  background: var(--accent-weak);
  color: var(--accent);
  border-radius: 6px;
  padding: 2px 6px;
}
.empty { text-align: center; padding: 80px 0; color: var(--muted); }

/* ---- Admin ---- */
.admin h1 { margin-top: 0; }
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  margin-bottom: 22px;
}
.panel h2 { margin-top: 0; font-size: 1.05rem; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: .82rem; color: var(--muted); margin-bottom: 10px; }
label.check { flex-direction: row; align-items: center; gap: 8px; }
input {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
}
input:focus { outline: 2px solid var(--accent-weak); border-color: var(--accent); }
.tool-row { border-top: 1px dashed var(--border); padding-top: 16px; margin-top: 16px; }
.row-actions { display: flex; gap: 10px; }
.btn {
  font: inherit;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.05); }
.btn-danger { background: var(--danger); }
.btn-small { padding: 6px 10px; font-size: .82rem; }
.btn-block { width: 100%; margin-top: 4px; }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--accent); filter: none; }
.stack { display: flex; flex-direction: column; gap: 4px; text-align: left; margin-top: 18px; }
.stack label { margin-bottom: 8px; }
.user-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.user-table th, .user-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.user-table th { color: var(--muted); font-weight: 600; }

/* ---- Admin nav + permission controls ---- */
.admin-nav {
  display: flex;
  gap: 4px;
  padding: 0 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 51px;
  z-index: 9;
}
.admin-nav a {
  padding: 12px 14px;
  color: var(--muted);
  font-weight: 600;
  font-size: .9rem;
  border-bottom: 2px solid transparent;
}
.admin-nav a:hover { color: var(--text); }
.admin-nav a.active { color: var(--accent); border-bottom-color: var(--accent); }

fieldset.checks {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin: 4px 0 12px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 6px 16px;
}
fieldset.checks legend { color: var(--muted); font-size: .8rem; padding: 0 6px; }
fieldset.checks .check { margin-bottom: 0; color: var(--text); }
select {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
}
.tool-row.compact .grid2 { grid-template-columns: 2fr 1.4fr 0.8fr auto; align-items: end; }
.user-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.row-actions { align-items: center; flex-wrap: wrap; }

/* ---- User management ---- */
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.page-head h1 { margin: 0; }
.form-actions { display: flex; gap: 10px; margin: 4px 0 24px; }
.danger-zone { border-color: color-mix(in srgb, var(--danger) 35%, var(--border)); }

.notice {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  color: var(--accent);
  border-radius: 10px; padding: 10px 14px; margin-bottom: 16px; font-size: .9rem;
}

.pill { font-size: .72rem; font-weight: 600; padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.pill-admin { background: var(--accent-weak); color: var(--accent); }
.pill-manager { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.pill-staff { background: var(--surface-2); color: var(--muted); border: 1px solid var(--border); }
.pill-ok { background: color-mix(in srgb, #2e9e5b 16%, transparent); color: #2e9e5b; }
.pill-warn { background: color-mix(in srgb, #d98a00 18%, transparent); color: #b97700; }
.pill-off { background: color-mix(in srgb, var(--danger) 14%, transparent); color: var(--danger); }
.link.strong { color: var(--text); font-weight: 650; }
.link.strong:hover { color: var(--accent); }

.tool-perms { display: flex; flex-direction: column; }
.tool-perm-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 10px 0; border-top: 1px solid var(--border);
}
.tool-perm-row:first-child { border-top: none; }
.tp-name { font-weight: 550; }
.tool-perm-row select { min-width: 130px; }
.user-table td .row-actions { justify-content: flex-end; }

@media (max-width: 560px) {
  .grid2 { grid-template-columns: 1fr; }
  .user-name { display: none; }
  .tool-row.compact .grid2 { grid-template-columns: 1fr; }
  .user-table thead { display: none; }
}