:root {
  --bg: #0f1419;
  --panel: #171e27;
  --line: #2a3544;
  --text: #e7eef6;
  --muted: #93a4b8;
  --accent: #5ee0a8;
  --warn: #f5c16c;
  --danger: #ff7a7a;
  --chip: #223042;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; font-family: "Segoe UI", system-ui, sans-serif; background: var(--bg); color: var(--text); }
body { display: grid; grid-template-columns: 260px 1fr; }
aside { border-right: 1px solid var(--line); padding: 20px 16px; display: flex; flex-direction: column; gap: 20px; }
.brand { display: flex; gap: 12px; align-items: center; }
.mark { width: 40px; height: 40px; border-radius: 10px; background: var(--accent); color: #073; display: grid; place-items: center; font-weight: 800; }
.brand small { display: block; color: var(--muted); }
nav { display: flex; flex-direction: column; gap: 4px; }
nav button, #auth-form button {
  background: transparent; border: 0; color: var(--text); text-align: left; padding: 10px 12px; border-radius: 8px; cursor: pointer;
}
nav button.active, nav button:hover { background: var(--chip); }
#auth-form { margin-top: auto; display: grid; gap: 8px; }
#auth-form input, select, textarea {
  background: #0c1116; border: 1px solid var(--line); color: var(--text); border-radius: 8px; padding: 8px 10px;
}
label, .muted, small { color: var(--muted); font-size: 12px; }
main { overflow: auto; padding: 28px 32px 64px; }
header h1 { margin: 0 0 6px; font-size: 28px; }
header p { margin: 0 0 24px; color: var(--muted); }
.grid { display: grid; gap: 16px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.card, .row-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.card strong { display: block; font-size: 24px; }
.check { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.ok { color: var(--accent); }
.warn { color: var(--warn); }
.danger { color: var(--danger); }
.btn {
  background: var(--accent); color: #062; border: 0; border-radius: 8px; padding: 8px 12px; font-weight: 700; cursor: pointer;
}
.btn.ghost { background: var(--chip); color: var(--text); }
.btn.danger { background: #5a2020; color: #ffd0d0; }
.list { display: grid; gap: 10px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
pre { white-space: pre-wrap; font-size: 12px; color: var(--muted); }
code { background: #0c1116; padding: 2px 6px; border-radius: 4px; }
@media (max-width: 860px) {
  body { grid-template-columns: 1fr; }
  aside { border-right: 0; border-bottom: 1px solid var(--line); }
}