:root {
  --bg: #0f1115;
  --fg: #e6e8eb;
  --muted: #8a93a0;
  --accent: #6cb6ff;
  --accent-fg: #0f1115;
  --error: #ff6b6b;
  --ok: #4ec9b0;
  --border: #2a2f38;
  --card: #161a21;
  --input-bg: #0b0d11;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f8fa;
    --fg: #1a1d22;
    --muted: #5a6573;
    --accent: #0066cc;
    --accent-fg: #ffffff;
    --error: #c0392b;
    --ok: #1d8a73;
    --border: #d8dde4;
    --card: #ffffff;
    --input-bg: #ffffff;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
}

body {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 32px 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  width: 100%;
  max-width: 420px;
}
.card.wide { max-width: 960px; }

h1 { margin: 0 0 12px; font-size: 22px; }
h2 { margin: 0 0 8px; font-size: 16px; }

.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--error); margin-top: 8px; }
.ok { color: var(--ok); }

form { display: flex; flex-direction: column; gap: 14px; margin-top: 16px; }

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 500;
}
label.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  color: var(--muted);
}

input[type="text"], input[type="password"], select {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--fg);
  font: inherit;
  width: 100%;
}
input:focus, select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  background: var(--accent);
  color: var(--accent-fg);
  border: 0;
  border-radius: 6px;
  padding: 10px 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
button.ghost {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  font-weight: 500;
}
button.danger { background: var(--error); color: #fff; }
button.small {
  padding: 4px 8px;
  font-size: 12px;
  font-weight: 500;
}
button:disabled { opacity: 0.5; cursor: not-allowed; }

code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.95em; }

.footer { margin-top: 20px; font-size: 12px; }
a { color: var(--accent); }

/* Admin */
.row { display: flex; gap: 16px; align-items: center; }
.row.spaced { justify-content: space-between; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 540px) { .grid { grid-template-columns: 1fr; } }

details {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  margin: 16px 0;
}
details summary { cursor: pointer; font-weight: 600; }
details[open] summary { margin-bottom: 8px; }

table {
  border-collapse: collapse;
  width: 100%;
  margin-top: 16px;
  font-size: 13px;
}
th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
th { color: var(--muted); font-weight: 600; }
td .actions { display: flex; gap: 6px; }
td.expired { color: var(--error); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 600;
  background: var(--input-bg);
  border: 1px solid var(--border);
  color: var(--muted);
}
.badge.trial { color: var(--accent); border-color: var(--accent); }
.badge.expired { color: var(--error); border-color: var(--error); }

dialog {
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  min-width: 320px;
}
dialog::backdrop { background: rgba(0, 0, 0, 0.5); }