:root {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --brand: #ea580c;
  --brand-dark: #c2410c;
  --ok: #15803d;
  --warn: #b45309;
  --danger: #b91c1c;
  --sidebar: #0a0a1a;
  --sidebar-2: #111827;
  --sidebar-text: #e2e8f0;
  --sidebar-dim: #94a3b8;
  --radius: 12px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

#app { min-height: 100vh; }
.boot { padding: 48px; text-align: center; color: var(--muted); }

.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background: #0a0a1a;
}
.auth-card {
  width: min(560px, 100%);
  background: var(--panel);
  border-radius: 16px;
  padding: 32px 28px;
  border: 1px solid #1e293b;
}
.auth-card h1 { margin: 0 0 8px; text-align: center; font-size: 28px; }
.auth-card .tag { text-align: center; color: var(--muted); margin: 0 0 24px; }
.tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.tabs button {
  flex: 1; border: 1px solid var(--line); background: #f8fafc;
  padding: 10px; border-radius: 8px; cursor: pointer; font-weight: 600;
}
.tabs button.active { background: #0f172a; color: #fff; border-color: #0f172a; }

.layout { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar {
  background: linear-gradient(180deg, var(--sidebar), var(--sidebar-2));
  color: var(--sidebar-text);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sidebar h2 { margin: 0 0 4px; font-size: 18px; }
.sidebar .who { color: var(--sidebar-dim); font-size: 13px; margin-bottom: 12px; }
.sidebar a, .sidebar button.nav {
  display: block; color: #cbd5e1; text-decoration: none;
  padding: 10px 12px; border-radius: 8px; border: 0; background: transparent;
  text-align: left; width: 100%; cursor: pointer; font-size: 14px;
}
.sidebar a:hover, .sidebar button.nav:hover { background: rgba(255,255,255,.08); color: #fff; }
.sidebar a.active { background: rgba(255,255,255,.12); color: #fff; font-weight: 700; }
.sidebar .grow { flex: 1; }
.sidebar select, .sidebar input {
  width: 100%; background: rgba(255,255,255,.06); color: #e2e8f0;
  border: 1px solid rgba(255,255,255,.18); border-radius: 8px; padding: 8px;
}
.sidebar select { color-scheme: dark; }
.sidebar select option { color: #0f172a; background: #fff; }

.lang-picker { position: relative; }
.lang-btn {
  width: 100%; text-align: left; cursor: pointer; font: inherit;
  background: rgba(255,255,255,.06); color: #e2e8f0;
  border: 1px solid rgba(255,255,255,.18); border-radius: 8px;
  padding: 10px 32px 10px 12px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23e2e8f0' d='M1 1.5l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}
.lang-btn:hover { background-color: rgba(255,255,255,.1); color: #fff; }
.lang-menu {
  position: absolute; left: 0; right: 0; bottom: calc(100% + 6px);
  background: #111827; border: 1px solid rgba(255,255,255,.16);
  border-radius: 10px; padding: 6px; box-shadow: 0 12px 32px rgba(0,0,0,.45);
  z-index: 20;
}
.lang-menu[hidden] { display: none; }
.lang-menu button {
  display: block; width: 100%; text-align: left; font: inherit;
  background: transparent; color: #e2e8f0; border: 0; border-radius: 8px;
  padding: 9px 10px; cursor: pointer;
}
.lang-menu button:hover, .lang-menu button.active {
  background: rgba(234, 88, 12, .18); color: #fff;
}
.sidebar .ghost {
  background: rgba(255,255,255,.06); color: #e2e8f0;
  border: 1px solid rgba(255,255,255,.18); border-radius: 8px;
  padding: 10px; cursor: pointer; width: 100%;
}

.main { padding: 28px 32px 48px; max-width: 1100px; }
.main h1 { margin: 0 0 6px; font-size: 28px; }
.caption { color: var(--muted); margin: 0 0 20px; }

.grid { display: grid; gap: 12px; }
.grid.cols-2 { grid-template-columns: 1fr 1fr; }
.grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}
.metric .v { font-size: 26px; font-weight: 800; margin: 0; }
.metric .l { color: var(--muted); font-size: 12px; margin: 4px 0 0; }

.product-card {
  color: #fff; border-radius: 14px; padding: 18px 14px; text-align: center;
  min-height: 168px; display: flex; flex-direction: column; justify-content: center;
}
.product-card.client { background: #0c4a6e; }
.product-card.agency { background: #064e3b; }
.product-card.oem { background: #4c1d95; }
.product-card .k { font-size: 10px; letter-spacing: .08em; text-transform: uppercase; opacity: .8; }
.product-card .p { font-size: 18px; font-weight: 800; margin: 6px 0 10px; }
.product-card .pct { font-size: 32px; font-weight: 800; margin: 0; }
.product-card .d { font-size: 11px; opacity: .85; margin-top: 8px; }

label { display: block; font-size: 13px; font-weight: 600; margin: 12px 0 6px; }
input, select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 8px; font: inherit; background: #fff;
}
textarea { min-height: 80px; }
.row { display: flex; gap: 12px; }
.row > * { flex: 1; }

button.primary, .btn {
  background: var(--brand); color: #fff; border: 0; border-radius: 8px;
  padding: 10px 16px; font-weight: 700; cursor: pointer;
}
button.primary:hover { background: var(--brand-dark); }
button.secondary {
  background: #0f172a; color: #fff; border: 0; border-radius: 8px;
  padding: 10px 16px; font-weight: 600; cursor: pointer;
}
button.linkish { background: none; border: 0; color: var(--brand); cursor: pointer; font-weight: 600; }

.banner { padding: 12px 14px; border-radius: 10px; margin: 12px 0; }
.banner.info { background: #eff6ff; color: #1e3a8a; }
.banner.warn { background: #fffbeb; color: #92400e; }
.banner.ok { background: #ecfdf5; color: #065f46; }
.banner.err { background: #fef2f2; color: #991b1b; }

table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 14px; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; }

.code { background: #0f172a; color: #e2e8f0; padding: 12px; border-radius: 8px; word-break: break-all; }

.admin-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin: 16px 0; }
.admin-tabs button {
  border: 1px solid var(--line); background: #fff; border-radius: 999px;
  padding: 8px 14px; cursor: pointer;
}
.admin-tabs button.active { background: #0f172a; color: #fff; border-color: #0f172a; }

.footer-note { color: var(--muted); font-size: 12px; text-align: center; margin-top: 24px; }
.check { display: flex; gap: 8px; align-items: flex-start; margin: 8px 0; }
.check input { width: auto; margin-top: 3px; }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr 1fr; }
  .sidebar { position: sticky; top: 0; z-index: 2; }
}