:root {
  color-scheme: light;
  --ink: #17243a;
  --muted: #52657a;
  --line: #d7dee7;
  --soft: #f1f4f6;
  --brand: #173b70;
  --ok: #165b35;
  --danger: #a43131;
  --focus: #71a9eb;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #f4f6f8;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; min-height: 100vh; padding: 24px 16px; }
main { width: min(100%, 880px); margin: 0 auto; background: #fff; padding: clamp(20px, 5vw, 40px); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 12px 40px #17243a0d; }
main.narrow { width: min(100%, 480px); }
.eyebrow { margin: 0 0 12px; color: #466287; font-size: 12px; font-weight: 750; letter-spacing: .09em; text-transform: uppercase; }
h1 { margin: 0 0 12px; font-size: clamp(24px, 5vw, 32px); line-height: 1.15; letter-spacing: -.02em; }
h2 { margin: 0 0 8px; font-size: 19px; line-height: 1.3; }
h3 { margin: 0 0 6px; font-size: 16px; }
p { margin: 0 0 14px; }
.fine { color: var(--muted); font-size: 13px; }
button, .button { display: inline-block; padding: 10px 14px; border: 0; border-radius: 9px; background: var(--brand); color: #fff; font: inherit; font-weight: 650; cursor: pointer; text-decoration: none; text-align: center; }
button.secondary, .button.secondary { background: #596b7d; }
button.danger { background: var(--danger); }
button.block { width: 100%; }
button:disabled, [aria-disabled="true"] { opacity: .55; cursor: not-allowed; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, [role="tab"]:focus-visible, [role="tabpanel"]:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
label { display: block; margin: 0 0 6px; font-weight: 650; }
input, select { width: 100%; padding: 10px 12px; margin: 0 0 14px; border: 1px solid #9aaac0; border-radius: 8px; font: inherit; background: #fff; }
.header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.tab-list { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 20px; padding: 4px; border: 1px solid var(--line); border-radius: 11px; background: var(--soft); }
.tab-list [role="tab"] { flex: 1 1 auto; padding: 9px 14px; border-radius: 7px; background: transparent; color: var(--muted); }
.tab-list [role="tab"][aria-selected="true"] { background: #fff; color: var(--ok); box-shadow: 0 1px 4px #17243a1a; }
.tab-list.sub [role="tab"][aria-selected="true"] { color: var(--brand); }
.tab-panel:focus { outline: none; }
.cards { display: grid; gap: 12px; }
.card { padding: 16px 18px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.card.disabled { background: var(--soft); }
.card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 700; background: var(--soft); color: var(--muted); }
.badge.production { background: #fde8e8; color: #7a1f1f; }
.badge.staging { background: #fff4d6; color: #6b4b00; }
.campaign-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 0; border-top: 1px solid #e5ebf0; flex-wrap: wrap; }
.plain-list { list-style: none; margin: 0; padding: 0; }
.plain-list > li { padding: 10px 0; border-top: 1px solid #e5ebf0; }
.plain-list > li:first-child { border-top: 0; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 0; }
.actions button { font-size: 14px; padding: 8px 12px; }
.empty-state { margin: 0; padding: 16px; border: 1px dashed #b8c5d3; border-radius: 10px; color: var(--muted); }
.section { padding: 18px 0; border-top: 1px solid var(--line); }
.section:first-child { border-top: 0; padding-top: 0; }
.form-grid { display: grid; gap: 0 14px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-top: 1px solid #e5ebf0; vertical-align: top; overflow-wrap: anywhere; }
th { color: var(--muted); font-weight: 650; }
#status { min-height: 24px; margin: 18px 0 0; color: #334e70; }
dialog { max-width: min(92vw, 460px); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
dialog::backdrop { background: #17243a66; }
.danger-text { color: var(--danger); font-weight: 650; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; overflow-wrap: anywhere; }
tr.highlight td { background: #fff4d6; }
details { margin: 10px 0; }
summary { cursor: pointer; font-weight: 650; color: var(--brand); }
textarea { width: 100%; padding: 10px 12px; margin: 0 0 14px; border: 1px solid #9aaac0; border-radius: 8px; font: inherit; }