:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1c1e21;
  --muted: #65676b;
  --accent: #f6821f;
  --accent-text: #ffffff;
  --border: #dcdfe4;
  --error: #c62828;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #18191a;
    --card: #242526;
    --text: #e4e6eb;
    --muted: #b0b3b8;
    --border: #3e4042;
    --error: #ef9a9a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.card {
  width: 100%;
  max-width: 380px;
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
}

h1 { margin: 0 0 20px; font-size: 1.6rem; }

.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tabs button {
  flex: 1;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}
.tabs button[aria-selected="true"] { color: var(--text); border-color: var(--accent); }

form { display: grid; gap: 12px; }
label { display: grid; gap: 4px; font-size: 0.9rem; color: var(--muted); }

input {
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

button {
  padding: 10px 14px;
  font: inherit;
  font-weight: 600;
  color: var(--accent-text);
  background: var(--accent);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: wait; }
button.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }

.muted { color: var(--muted); }
.error { color: var(--error); min-height: 1.5em; margin: 12px 0 0; }
.status { color: var(--error); min-height: 1.5em; margin: 0; font-size: 0.9rem; }
.status.ok { color: var(--muted); }

h2 { font-size: 1.05rem; margin: 28px 0 12px; }
a { color: var(--accent); }
a.button {
  display: inline-block;
  padding: 10px 14px;
  font-weight: 600;
  color: var(--accent-text);
  background: var(--accent);
  border-radius: 8px;
  text-decoration: none;
}
#logout { margin-top: 28px; }

/* ---------- Admin page ---------- */

.card.wide { max-width: 760px; }

.topbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.topbar h1 { margin: 0; }
.topbar nav { display: flex; align-items: center; gap: 16px; }
.topbar #logout { margin: 0; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 20px; }
.stats div {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.85rem;
}
.stats span { display: block; font-size: 1.6rem; font-weight: 700; color: var(--text); }

.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.tool {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
}
.tool.placeholder { border-style: dashed; color: var(--muted); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; }

@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr; }
}