:root {
  --bg: #f1f5f9;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #2563eb;
  --danger: #dc2626;
  --warning: #d97706;
  --success: #059669;
  --raised: #f8fafc;
  --btn-hover: #f8fafc;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .1);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f172a;
    --surface: #1e293b;
    --border: #334155;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --raised: #172033;
    --btn-hover: #26344b;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0f172a;
  --surface: #1e293b;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --raised: #172033;
  --btn-hover: #26344b;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a.btn:hover { text-decoration: none; }

h1 { font-size: 20px; margin: 0 0 1rem; }
h2 { font-size: 16px; margin: 1.5rem 0 .6rem; }

.topbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0 1.25rem;
  min-height: 52px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: .5rem; font-weight: 650; font-size: 15px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-logo { width: 26px; height: 26px; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .brand-logo { filter: invert(1); }
}
:root[data-theme="dark"] .brand-logo { filter: invert(1); }
.topnav { display: flex; gap: 1rem; flex: 1; flex-wrap: wrap; }
.topnav a { color: var(--muted); font-weight: 500; }
.topnav a:hover { color: var(--text); text-decoration: none; }
.topbar-right { display: flex; align-items: center; }
.topbar-right .who { color: var(--muted); }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  margin-right: .35rem;
  border: 1px solid transparent;
  border-radius: 6px;
  background: none;
  color: var(--muted);
  font-size: 15px;
  cursor: pointer;
}
.theme-toggle:hover { color: var(--text); background: var(--btn-hover); border-color: var(--border); }

.signout { display: inline; margin-left: .75rem; }
.signout button { background: none; border: 0; padding: 0; color: var(--muted); font: inherit; cursor: pointer; }
.signout button:hover { color: var(--text); text-decoration: underline; }

.page { padding: 1.25rem; max-width: 1100px; margin: 0 auto; }

.messages { list-style: none; margin: 0 auto; padding: .75rem 1.25rem 0; max-width: 1100px; }
.message {
  padding: .6rem .9rem;
  border-radius: var(--radius);
  margin-bottom: .5rem;
  border: 1px solid var(--border);
  background: var(--surface);
}
.message-success { border-left: 3px solid var(--success); }
.message-warning { border-left: 3px solid var(--warning); }
.message-error { border-left: 3px solid var(--danger); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.muted { color: var(--muted); }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.page-head h1 { margin: 0; }

.btn {
  display: inline-block;
  padding: .45rem .8rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}
.btn:hover { background: var(--btn-hover); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: #1d4ed8; }
.btn-block { display: block; width: 100%; text-align: center; }

table.list { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
table.list th, table.list td { text-align: left; padding: .5rem .75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
table.list th { font-weight: 600; color: var(--muted); font-size: 13px; background: var(--raised); }
table.list tr:last-child td { border-bottom: 0; }
.table-wrap { overflow-x: auto; }

.badge { display: inline-block; padding: 0 .45rem; border-radius: 999px; font-size: 12px; border: 1px solid var(--border); color: var(--muted); }
.badge-accent { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }

.preview {
  width: 100%;
  min-height: 160px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  display: block;
}
.preview-label { font-size: 13px; color: var(--muted); margin: .75rem 0 .3rem; }

.form-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1.25rem; align-items: start; }
@media (max-width: 860px) { .form-grid { grid-template-columns: minmax(0, 1fr); } }
.field { margin-bottom: .9rem; }
.field label { display: block; font-weight: 600; margin-bottom: .25rem; }
.field input[type="text"], .field input[type="number"], .field textarea, .field select, .filters input {
  width: 100%;
  padding: .45rem .6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--raised);
  color: var(--text);
  font: inherit;
}
.field textarea.code, pre.code {
  font: 12.5px/1.45 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}
.field .help { font-size: 12.5px; color: var(--muted); margin-top: .2rem; }
.field .errorlist { color: var(--danger); margin: .2rem 0 0; padding-left: 1rem; }
.checks { display: flex; gap: 1.25rem; flex-wrap: wrap; margin-bottom: .9rem; }
.checks label { display: flex; align-items: center; gap: .35rem; font-weight: 500; }
.rules { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; }
@media (max-width: 640px) { .rules { grid-template-columns: minmax(0, 1fr); } }

pre.code {
  background: var(--raised);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .75rem;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 360px;
  overflow: auto;
}

.filters { display: flex; gap: .5rem; margin-bottom: 1rem; }
.filters input { max-width: 320px; }

.login-page { padding: 1.25rem; }
.login-card {
  max-width: 400px;
  margin: 6rem auto 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.login-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  padding: .75rem 1rem;
  background: var(--accent);
  color: #fff;
  font-size: 18px;
  font-weight: 500;
}
.login-head img { width: 40px; height: 40px; filter: invert(1); }
.login-body { padding: 1.4rem 1.5rem 1.5rem; text-align: center; }
.login-body .message { text-align: left; }
.login-with { margin: 0 0 .75rem; }
.login-choices { display: flex; align-items: center; justify-content: center; gap: .9rem; color: var(--muted); }
.login-choices .btn { min-width: 100px; font-weight: 600; }
.login-form { margin-top: 1.25rem; text-align: left; }
.login-form label { display: block; font-weight: 600; margin-bottom: .3rem; }
.login-form input:not([type="hidden"]) {
  width: 100%;
  padding: .5rem .6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--raised);
  color: var(--text);
  font: inherit;
}