:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #09110e;
  --panel: #122019;
  --panel-2: #172a20;
  --line: #2d4a39;
  --text: #f4f7f3;
  --muted: #a5b9aa;
  --accent: #69d58b;
  --danger: #ff8d87;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at top, #173528 0, var(--bg) 48%); color: var(--text); }
.shell { width: min(1040px, calc(100% - 32px)); margin: 0 auto; padding: 42px 0 80px; }
header, .row, .actions { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
h1 { margin: 3px 0; font-size: clamp(2rem, 6vw, 3.6rem); letter-spacing: -0.04em; }
h2 { margin: 0 0 14px; }
.eyebrow { margin: 0; color: var(--accent); letter-spacing: .16em; font-size: .8rem; font-weight: 800; }
.subtitle, .hint { color: var(--muted); }
.status { padding: 8px 13px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); white-space: nowrap; }
.card { margin-top: 22px; padding: clamp(20px, 4vw, 32px); background: color-mix(in srgb, var(--panel) 92%, transparent); border: 1px solid var(--line); border-radius: 20px; box-shadow: 0 24px 70px #0005; }
.grid { display: grid; grid-template-columns: minmax(280px, .8fr) minmax(380px, 1.2fr); gap: 22px; }
.grid .card { margin-top: 22px; }
label { display: grid; gap: 7px; margin: 14px 0; color: var(--muted); }
input { width: 100%; padding: 13px 14px; color: var(--text); background: #0b1510; border: 1px solid var(--line); border-radius: 10px; font: inherit; }
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
button { padding: 12px 18px; border: 0; border-radius: 10px; background: var(--accent); color: #07130b; font: inherit; font-weight: 750; cursor: pointer; }
button:disabled { opacity: .5; cursor: progress; }
button.secondary { background: var(--panel-2); color: var(--text); border: 1px solid var(--line); }
button.danger { background: #4b2424; color: #ffd3d0; }
details { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); }
summary { cursor: pointer; color: var(--accent); font-weight: 700; }
.message { margin-top: 22px; padding: 14px 18px; border-radius: 12px; background: #173224; border: 1px solid #39744e; }
.message.error { background: #351b1b; border-color: #81403d; }
.hidden { display: none !important; }
.device { display: grid; grid-template-columns: 1fr auto; gap: 14px; padding: 14px 0; border-top: 1px solid var(--line); }
.device:first-child { border-top: 0; }
.device strong, .device small { display: block; overflow-wrap: anywhere; }
.device small { margin-top: 5px; color: var(--muted); }
.badge { display: inline-block; margin-left: 7px; padding: 2px 7px; border-radius: 999px; background: #244932; color: #aaf1bd; font-size: .72rem; }
.actions { justify-content: flex-end; margin-top: 20px; }
@media (max-width: 760px) {
  header { align-items: flex-start; flex-direction: column; }
  .grid { grid-template-columns: 1fr; }
  .shell { padding-top: 24px; }
}