/* оформление как на сайте-визитке: тёмная тема, золотой акцент */
:root {
  --bg: #0f1418; --card: #161d23; --line: #25303a; --text: #e7ecef; --muted: #9aa7b2;
  --gold: #d9a441; --gold2: #f0c46a; --green: #4fb37a; --red: #ef5d52; --blue: #5aa9ff;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif; }
a { color: var(--gold2); }
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 16px; padding: 0 20px; min-height: 60px; border-bottom: 1px solid var(--line); background: rgba(15, 20, 24, .92); backdrop-filter: blur(6px); flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .3px; color: var(--text); text-decoration: none; }
.brand svg { width: 30px; height: 30px; }
.brand span { color: var(--text); }
nav { display: flex; gap: 6px; flex: 1; }
nav button { background: none; border: 0; color: var(--muted); padding: 6px 12px; border-radius: 8px; cursor: pointer; font: inherit; }
nav button.on { background: var(--bg); color: var(--text); }
.who { color: var(--muted); display: flex; gap: 10px; align-items: center; }
main { max-width: 1000px; margin: 0 auto; padding: 20px 16px 60px; }
h1 { font-size: 22px; margin: 4px 0 14px; } h2 { font-size: 17px; margin: 0 0 10px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin-bottom: 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.stat b { display: block; font-size: 24px; } .stat span { color: var(--muted); font-size: 13px; }
.muted { color: var(--muted); } .small { font-size: 13px; }
button.btn, a.btn { background: var(--gold); color: #1b1406; border: 0; border-radius: 8px; padding: 8px 14px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-block; }
button.btn:hover { background: var(--gold2); }
button.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 6px 11px; font: inherit; cursor: pointer; }
button.ghost:hover { border-color: var(--muted); }
button.danger { color: var(--red); border-color: var(--red); }
button:disabled { opacity: .5; cursor: default; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.ok { background: rgba(62, 207, 142, .15); color: var(--green); } .bad { background: rgba(239, 93, 82, .15); color: var(--red); }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; background: var(--muted); margin-right: 8px; }
.dot.on { background: var(--green); }
.warn { background: rgba(240, 180, 41, .15); color: var(--gold); }
.dot.off { background: var(--red); } .dot.stop { background: var(--gold); }
.code { font: 700 34px/1.2 ui-monospace, Consolas, monospace; letter-spacing: 4px; color: var(--gold); margin: 10px 0; }
pre.out { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 10px; margin: 10px 0 0; white-space: pre-wrap; word-break: break-word; max-height: 320px; overflow: auto; font-size: 13px; }
img.shot { max-width: 100%; border-radius: 8px; margin-top: 10px; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 500; font-size: 13px; }
.scroll { overflow-x: auto; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--card); border: 1px solid var(--line); padding: 10px 16px; border-radius: 10px; box-shadow: 0 6px 24px rgba(0, 0, 0, .35); }
input[type=text], input[type=number] { background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; font: inherit; }
@media (max-width: 640px) { .top { padding: 10px 12px; } .code { font-size: 26px; } }
.bigrow { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-top: 12px; }
button.bigbtn { background: var(--card); color: var(--text); border: 1px solid var(--line); border-radius: 12px; padding: 16px 12px; font: inherit; font-size: 17px; font-weight: 600; cursor: pointer; }
button.bigbtn:hover:not(:disabled) { border-color: var(--muted); }
button.bigbtn.go:not(:disabled) { background: rgba(62, 207, 142, .15); border-color: var(--green); color: var(--green); }
button.bigbtn.stopb:not(:disabled) { background: rgba(239, 93, 82, .12); border-color: var(--red); color: var(--red); }
button.bigbtn:disabled { opacity: .45; cursor: default; }
ol.steps { margin: 6px 0 0; padding-left: 20px; color: var(--muted); } ol.steps li { margin: 6px 0; }