:root {
    --bg: #090d14;
    --bg-2: #101722;
    --panel: #141c2b;
    --panel-2: #1b2536;
    --line: rgba(232, 196, 138, .16);
    --text: #f4efe6;
    --muted: #a39888;
    --gold: #e2b56a;
    --gold-2: #f3d7a1;
    --ink: #1a130c;
    --ok: #8dcea0;
    --bad: #ef8b86;
    --warn: #f0c27a;
    --shadow: 0 24px 60px rgba(0, 0, 0, .35);
    --sans: "Manrope", "Segoe UI", sans-serif;
    --display: "Unbounded", "Manrope", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    min-height: 100vh;
    color: var(--text);
    font-family: var(--sans);
    background:
        radial-gradient(900px 420px at 100% -10%, rgba(226, 181, 106, .16), transparent 55%),
        linear-gradient(180deg, #0c121c 0%, var(--bg) 280px);
}
a { color: var(--gold-2); text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3 { font-family: var(--display); font-weight: 500; letter-spacing: -.03em; margin: 0; }
p { color: var(--muted); }

.gate {
    display: grid;
    place-items: center;
    padding: 32px 16px;
}
.gate-card, .install-card {
    width: min(560px, 100%);
    background: rgba(20, 28, 43, .92);
    border: 1px solid var(--line);
    border-radius: 28px;
    padding: 32px;
    box-shadow: var(--shadow);
}
.install-card { width: min(860px, 100%); }
.eyebrow {
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: .18em;
    font-size: 12px;
    margin: 0 0 8px;
}
.lede { font-size: 16px; line-height: 1.55; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.form-grid .wide { grid-column: 1 / -1; }
label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
input, select, textarea {
    width: 100%;
    background: #0c121b;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 14px;
    padding: 12px 14px;
    outline: none;
}
textarea { min-height: 110px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--gold); }
.btn, button.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    cursor: pointer;
    background: linear-gradient(180deg, var(--gold-2), var(--gold));
    color: var(--ink);
    border-radius: 999px;
    padding: 12px 18px;
    font-weight: 700;
    text-decoration: none;
}
.btn.ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--line);
}
.btn.danger { background: #6e2c32; color: #fff; }
.btn.small { padding: 8px 12px; font-size: 13px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.note {
    background: rgba(226, 181, 106, .08);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 12px 14px;
    color: var(--gold-2);
    font-size: 14px;
}
.error {
    background: rgba(239, 139, 134, .12);
    color: #ffd0cd;
    border-radius: 14px;
    padding: 12px 14px;
}

.shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.side {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 22px 16px;
    background: rgba(8, 12, 18, .88);
    border-right: 1px solid rgba(255,255,255,.06);
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.brand { display: flex; gap: 12px; align-items: center; padding: 0 8px; }
.mark {
    width: 42px; height: 42px; border-radius: 14px;
    display: grid; place-items: center;
    background: linear-gradient(160deg, var(--gold-2), #8a5a22);
    color: var(--ink); font-family: var(--display); font-size: 14px;
}
.brand b { display: block; font-size: 15px; }
.brand span { color: var(--muted); font-size: 12px; }
.nav { display: grid; gap: 4px; }
.nav a {
    color: var(--text);
    padding: 10px 12px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
}
.nav a.active, .nav a:hover { background: rgba(226, 181, 106, .12); color: var(--gold-2); }
.side-foot { margin-top: auto; padding: 8px; color: var(--muted); font-size: 12px; }
.main { padding: 28px; }
.top {
    display: flex; justify-content: space-between; gap: 16px; align-items: flex-end;
    margin-bottom: 22px;
}
.top p { margin: 6px 0 0; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.card, .panel {
    background: rgba(20, 28, 43, .86);
    border: 1px solid rgba(255,255,255,.06);
    border-radius: 22px;
    padding: 18px;
}
.card .k { color: var(--muted); font-size: 13px; }
.card .v { font-family: var(--display); font-size: 28px; margin-top: 8px; }
.card .s { color: var(--gold); font-size: 13px; margin-top: 6px; }
.grid-2 { display: grid; grid-template-columns: 1.4fr .8fr; gap: 16px; margin-top: 16px; }
.stack { display: grid; gap: 16px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12px; letter-spacing: .04em; text-transform: uppercase; }
th, td { padding: 10px 8px; border-bottom: 1px solid rgba(255,255,255,.06); vertical-align: top; }
.badge {
    display: inline-flex; align-items: center; border-radius: 999px;
    padding: 3px 8px; font-size: 12px; background: rgba(255,255,255,.06);
}
.badge.ok { color: var(--ok); background: rgba(141, 206, 160, .12); }
.badge.bad { color: var(--bad); background: rgba(239, 139, 134, .12); }
.badge.warn { color: var(--warn); background: rgba(240, 194, 122, .12); }
.flash { margin-bottom: 14px; }
.split { display: grid; grid-template-columns: 1.5fr .7fr; gap: 16px; align-items: start; }
.sticky { position: sticky; top: 16px; }
.group-title {
    margin: 18px 0 8px;
    color: var(--gold);
    font-size: 13px;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.check {
    display: grid;
    grid-template-columns: 22px 1fr auto;
    gap: 10px;
    align-items: start;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,.05);
}
.check small { display: block; color: var(--muted); }
.price-tag { color: var(--gold-2); white-space: nowrap; font-variant-numeric: tabular-nums; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.filters a { color: var(--muted); padding: 6px 10px; border-radius: 999px; border: 1px solid transparent; }
.filters a.on { color: var(--ink); background: var(--gold); }
pre.json {
    white-space: pre-wrap;
    word-break: break-word;
    background: #0c121b;
    border-radius: 16px;
    padding: 12px;
    max-height: 420px;
    overflow: auto;
    font-size: 12px;
}
.report-view { white-space: pre-wrap; line-height: 1.45; }
.toggle { display: inline-flex; align-items: center; gap: 8px; }
.guide h2 { margin: 0 0 8px; font-size: 22px; }
.guide h3 { margin: 16px 0 6px; font-size: 16px; }
.guide p, .guide li { line-height: 1.55; }
.guide ol, .guide ul { margin: 8px 0 0; padding-left: 20px; }
.guide li { margin: 6px 0; }
.guide code, .mono {
    font-family: Consolas, "Courier New", monospace;
    color: var(--gold-2);
    word-break: break-all;
}
.diag { display: grid; grid-template-columns: 220px 1fr; gap: 6px 12px; font-size: 14px; }
.diag b { color: var(--text); font-weight: 600; }

@media (max-width: 980px) {
    .shell { grid-template-columns: 1fr; }
    .side { position: relative; height: auto; }
    .stats, .grid-2, .split, .form-grid { grid-template-columns: 1fr; }
    .main { padding: 16px; }
}