:root {
    color-scheme: light;
    --bg: #f6f7f9;
    --ink: #20242b;
    --muted: #657080;
    --line: #d8dde5;
    --panel: #ffffff;
    --accent: #0f766e;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: var(--bg); color: var(--ink); }
a { color: var(--accent); text-decoration: none; }
.topbar { height: 58px; display: flex; justify-content: space-between; align-items: center; padding: 0 24px; background: #111827; color: #fff; }
.topbar nav { display: flex; gap: 18px; align-items: center; }
.topbar a { color: #fff; }
.topbar form { margin: 0; }
.shell { max-width: 1180px; margin: 28px auto; padding: 0 20px; }
h1 { font-size: 28px; margin: 0 0 20px; }
h2 { font-size: 19px; margin: 0 0 14px; }
.panel, .cards article { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 18px; margin-bottom: 18px; }
.grid { display: grid; gap: 14px; }
.cards { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.cards span { display: block; color: var(--muted); font-size: 13px; }
.cards strong { font-size: 30px; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { text-align: left; padding: 12px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-size: 13px; }
button { border: 0; border-radius: 6px; background: var(--accent); color: #fff; padding: 9px 14px; cursor: pointer; }
input { width: 100%; border: 1px solid var(--line); border-radius: 6px; padding: 10px; margin-top: 6px; }
.stack { display: grid; gap: 14px; }
.login { max-width: 420px; margin: 60px auto; }
.alert { background: #fee2e2; color: #991b1b; padding: 10px; border-radius: 6px; }
pre { overflow: auto; background: #0b1020; color: #d1e7ff; padding: 14px; border-radius: 8px; }
dl { display: grid; grid-template-columns: 140px 1fr; gap: 8px; }
dt { color: var(--muted); }
.actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.icon-btn, .icon-link { min-width: 44px; height: 34px; display: inline-grid; place-items: center; border-radius: 6px; background: var(--accent); color: #fff; font-weight: 700; padding: 0 8px; font-size: 13px; }
.icon-link { text-decoration: none; }
.ghost-btn, .ghost-link { border: 1px solid var(--line); background: #fff; color: var(--ink); border-radius: 6px; padding: 8px 10px; font-size: 14px; }
.ghost-link { display: inline-block; }
.muted { background: #4b5563; }
.muted-text { color: var(--muted); }
.modal-backdrop { position: fixed; inset: 0; background: rgba(17, 24, 39, .55); display: grid; place-items: center; padding: 20px; z-index: 10; }
.modal-backdrop[hidden] { display: none; }
.modal { width: min(760px, 100%); max-height: min(760px, 92vh); overflow: auto; background: #fff; border-radius: 8px; border: 1px solid var(--line); box-shadow: 0 24px 60px rgba(0,0,0,.24); }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.modal-head h2 { margin: 0; }
.tab-panel { padding: 18px; }
.tabs { display: flex; gap: 8px; padding: 12px 18px 0; border-bottom: 1px solid var(--line); }
.tab { border: 1px solid var(--line); border-bottom: 0; background: #f9fafb; color: var(--ink); border-radius: 6px 6px 0 0; padding: 9px 12px; }
.tab.active { background: #fff; color: var(--accent); font-weight: 700; }
.modal-links { display: flex; gap: 10px; flex-wrap: wrap; margin: 16px 0; }
.modal-links a { border: 1px solid var(--line); border-radius: 6px; padding: 8px 10px; color: var(--ink); }