:root {
  --bg: #0b1220;
  --card: rgba(255, 255, 255, 0.08);
  --stroke: rgba(255, 255, 255, 0.14);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.7);
  --brand: #7c5cff;
  --brand2: #30d5c8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% 10%, rgba(124, 92, 255, 0.35), transparent),
    radial-gradient(1200px 600px at 80% 20%, rgba(48, 213, 200, 0.22), transparent),
    var(--bg);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(11, 18, 32, 0.55);
  border-bottom: 1px solid var(--stroke);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.brand-badge {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
}

.nav-links {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link {
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
  border: 1px solid transparent;
}

.nav-link:hover {
  border-color: var(--stroke);
  color: var(--text);
}

.hero {
  padding: 64px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 22px;
  align-items: stretch;
}

.card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 22px;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: 44px;
  line-height: 1.08;
}

.lead {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}

.btn-primary {
  border-color: rgba(124, 92, 255, 0.7);
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.95), rgba(48, 213, 200, 0.75));
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.section {
  padding: 22px 0 52px;
}

.section h2 {
  margin: 0 0 10px;
  font-size: 24px;
}

.list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.footer {
  border-top: 1px solid var(--stroke);
  padding: 18px 0;
  color: var(--muted);
}

.form {
  display: grid;
  gap: 12px;
}

.input,
.textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: rgba(0, 0, 0, 0.18);
  color: var(--text);
}

.textarea {
  min-height: 120px;
  resize: vertical;
}

.help {
  font-size: 13px;
  color: var(--muted);
}

.notice {
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: rgba(48, 213, 200, 0.12);
  color: rgba(255, 255, 255, 0.9);
}

.notice.error {
  background: rgba(255, 92, 92, 0.12);
}

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

.kpi .kpi-item {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.04);
}

.kpi .kpi-item strong {
  display: block;
  font-size: 20px;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 36px;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
}