:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --border: #d9dde3;
  --text: #1c2026;
  --muted: #5f6873;
  --accent: #1f6feb;
  --accent-ink: #ffffff;
  --accent-soft: #e6effd;
  --danger: #c4302b;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 4px 16px rgba(0,0,0,.05);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111418;
    --surface: #1a1e24;
    --surface-2: #232830;
    --border: #333a44;
    --text: #e6e9ed;
    --muted: #9aa3ae;
    --accent: #4c8dff;
    --accent-ink: #0b1220;
    --accent-soft: #1c2a42;
    --danger: #ff6b63;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }

.topbar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar .brand { font-weight: 700; color: var(--text); text-decoration: none; }
.topbar nav { display: flex; gap: 4px; flex-wrap: wrap; }
.topbar nav a {
  color: var(--muted); text-decoration: none; padding: 6px 10px; border-radius: 6px;
}
.topbar nav a:hover { background: var(--surface-2); color: var(--text); }
.topbar nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent); }

main { max-width: 1180px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 1.6rem; margin: 0 0 4px; }
.lede { color: var(--muted); margin: 0 0 24px; }

.layout { display: grid; grid-template-columns: minmax(0, 420px) minmax(0, 1fr); gap: 24px; align-items: start; }
@media (max-width: 860px) { .layout { grid-template-columns: minmax(0, 1fr); } }

.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px;
}
.panel h2 { font-size: 1rem; margin: 0 0 12px; }
.panel + .panel { margin-top: 16px; }
.sticky { position: sticky; top: 16px; }

.field { margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }
.field > label, .label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 4px; }
.hint { font-size: .8rem; color: var(--muted); margin-top: 4px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .row, .row3 { grid-template-columns: 1fr; } }

input[type=text], input[type=password], input[type=email], input[type=tel], input[type=url],
input[type=number], input[type=datetime-local], select, textarea {
  width: 100%; padding: 8px 10px; font: inherit; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-radius: 7px;
}
textarea { resize: vertical; min-height: 80px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
input[type=color] { width: 100%; height: 38px; padding: 2px; border: 1px solid var(--border); border-radius: 7px; background: var(--surface); }
.check { display: flex; align-items: center; gap: 8px; font-size: .9rem; }

.input-group { display: flex; gap: 6px; }
.input-group input { flex: 1; min-width: 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 14px; font: inherit; font-weight: 600; cursor: pointer;
  border-radius: 7px; border: 1px solid var(--border);
  background: var(--surface-2); color: var(--text); white-space: nowrap;
}
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.small { padding: 6px 10px; font-size: .85rem; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }

.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.tabs button {
  font: inherit; font-size: .9rem; cursor: pointer; padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}
.tabs button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

.payload {
  font: 12px/1.4 ui-monospace, Consolas, monospace; white-space: pre-wrap; word-break: break-all;
  background: var(--surface-2); border-radius: 7px; padding: 10px; color: var(--muted);
  max-height: 160px; overflow: auto;
}
.warn { color: var(--danger); font-size: .85rem; }

/* Tool cards on the landing page */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.card {
  display: block; text-decoration: none; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
}
.card:hover { border-color: var(--accent); }
.card h3 { margin: 0 0 6px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: .9rem; }
.section-title { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 32px 0 10px; }

.print-only { display: none; }
@media print {
  .no-print { display: none !important; }
  .print-only { display: block; }
  body { background: #fff; color: #000; }
}