:root {
  --bg: #0b1020;
  --surface: #121a2f;
  --surface-alt: #18223d;
  --border: #263354;
  --text: #eef2ff;
  --muted: #9aa8c7;
  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 18px 56px;
}

header.topbar {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 16, 32, 0.92);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
}

.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 12px 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-size: 0.92rem;
}

.lang-btn {
  background: var(--surface-alt);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 5px 10px;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
}

.lang-btn:hover {
  border-color: var(--accent);
}

.hero {
  padding: 28px 0 18px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  line-height: 1.2;
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 720px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

.card h2, .card h3 {
  margin-top: 0;
}

.badge {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.14);
  color: var(--accent);
  margin-bottom: 8px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px;
}

label.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 0.85rem;
  color: var(--muted);
}

input[type="text"],
input[type="number"],
input[type="search"],
select {
  width: 100%;
  background: var(--surface-alt);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 11px;
  font-size: 0.95rem;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}

.check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text);
  margin-top: 10px;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.kpi {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
}

.kpi-label {
  font-size: 0.78rem;
  color: var(--muted);
}

.kpi-value {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 3px;
}

.kpi-value.ok { color: var(--ok); }
.kpi-value.warn { color: var(--warn); }
.kpi-value.danger { color: var(--danger); }

.table-wrap {
  overflow-x: auto;
  margin-top: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.btn {
  display: inline-block;
  background: var(--accent-strong);
  color: #031524;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 0.88rem;
}

.btn-sm {
  padding: 4px 9px;
  font-size: 0.78rem;
}

pre.code-box {
  background: #070b16;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  overflow-x: auto;
  font-size: 0.84rem;
  color: #bae6fd;
}

.ad-slot {
  margin-top: 22px;
  padding: 12px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
}

footer.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding-top: 18px;
  color: var(--muted);
  font-size: 0.83rem;
}

.section-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.chip {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  font-size: 0.8rem;
}