.mk { display: grid; gap: 28px; padding-bottom: clamp(48px, 7vw, 96px); }
.mk-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; align-items: start; }
.mk .card, .mk .card > *, .mk .form > * { min-width: 0; }
.mk .card h2 { font: 700 19px/1.2 var(--display); margin: 0; }
.mk .card h3 { font: 600 14px/1.3 var(--display); margin: 6px 0 0; }
.mk .row { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.mk .row label { flex: 1 1 140px; }
.mk .num { font: 500 13px/1.4 var(--mono); }
.mk .big-num { font: 700 30px/1 var(--display); }
.mk .muted { color: var(--steel); font-size: 13px; }
.mk table { width: 100%; border-collapse: collapse; font-size: 13px; }
.mk th, .mk td { text-align: left; padding: 6px 8px 6px 0; border-bottom: 1px solid var(--rule); vertical-align: middle; }
.mk th { font: 600 11px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .04em; color: var(--steel); }
.mk td input { width: 76px; }
.mk .scroll { overflow-x: auto; }
.sandbox-bar { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; justify-content: space-between; padding: 14px 18px; border: 1px dashed var(--rule-strong); border-radius: 2px; background: var(--sheet); }
.pill { display: inline-block; padding: 2px 8px; border-radius: 10px; border: 1px solid var(--rule-strong); font: 500 11px/1.5 var(--mono); }
.reply { white-space: pre-wrap; font: 400 13px/1.5 var(--mono); padding: 12px; border: 1px solid var(--rule); border-radius: 2px; min-height: 48px; }
.key-once { font: 600 13px/1.4 var(--mono); overflow-wrap: anywhere; padding: 10px; border: 1px solid var(--signal); border-radius: 2px; }
@media (max-width: 900px) { .mk-grid { grid-template-columns: minmax(0, 1fr); } .mk .card { padding: 16px; } }
body:not(.sandbox) .sandbox-only, body.sandbox .live-only { display: none !important; }
.mode { display: inline-flex; border: 1px solid var(--rule-strong); border-radius: 2px; overflow: hidden; }
.mode a { padding: 8px 14px; font: 600 13px/1 var(--display); text-decoration: none; color: inherit; }
.mode a[aria-current="true"] { background: var(--signal); color: var(--signal-ink); }
.mk .endpoint { font: 500 13px/1.4 var(--mono); overflow-wrap: anywhere; }
.tabs { display: flex; flex-wrap: wrap; gap: 4px; border-bottom: 1px solid var(--rule-strong); }
.tabs button { border: 0; background: none; padding: 10px 14px; font: 600 14px/1 var(--display); color: var(--steel); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs button[aria-selected="true"] { color: inherit; border-bottom-color: var(--signal); }
.tab-panel { display: grid; gap: 28px; }
.tab-panel[hidden] { display: none; }