:root {
  --bg: #0b1220;
  --card: #101a30;
  --muted: #9fb0d0;
  --text: #e9efff;
  --accent: #4fd1c5;
  --accent2: #60a5fa;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
}
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(
      1200px 600px at 10% 0%,
      rgba(69, 140, 226, 0.873),
      transparent 50%
    ),
    radial-gradient(
      1000px 500px at 80% 10%,
      rgba(9, 217, 196, 0.686),
      transparent 55%
    ),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}
.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 18, 32, 0.75);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.brand {
  font-weight: 800;
  letter-spacing: 0.2px;
  font-size: 1.15rem;
}
.brand span {
  color: var(--accent);
}
.nav {
  display: flex;
  gap: 14px;
  align-items: center;
}
.nav a {
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
  transition: 0.2s ease;
}
.nav a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}
.nav a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #06101f;
  font-weight: 800;
  padding: 12px 16px;
  border-radius: 14px;
  border: 0;
  box-shadow: var(--shadow);
  cursor: pointer;
}
.btn:hover {
  filter: brightness(1.05);
}
.btn:active {
  transform: translateY(1px);
}
.btn-sm {
  padding: 9px 12px;
  border-radius: 12px;
  font-weight: 800;
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.06);
}

.hero {
  padding: 54px 0 34px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 22px;
  align-items: start;
}
.hero h1 {
  font-size: clamp(2rem, 3.6vw, 3rem);
  line-height: 1.1;
  margin: 0 0 12px;
}
.lead {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 18px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.badge {
  border: 1px solid var(--border);
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.section {
  padding: 38px 0;
}
.section.alt {
  background: rgba(255, 255, 255, 0.03);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.page-head {
  padding: 38px 0 10px;
}
.page-head h1 {
  margin: 0 0 8px;
}
.muted {
  color: var(--muted);
}
.mini {
  font-size: 0.9rem;
}

.card {
  background: rgba(16, 26, 48, 0.78);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.hero-card h3 {
  margin-top: 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 14px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  align-items: start;
}
.center {
  text-align: center;
}

.link {
  color: var(--accent);
  font-weight: 700;
}
.link:hover {
  opacity: 0.9;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
}
.checklist li {
  margin: 10px 0;
  padding-left: 28px;
  position: relative;
  color: var(--muted);
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 900;
}

.bullets {
  color: var(--muted);
  margin: 10px 0 0;
}
.bullets li {
  margin: 8px 0;
}

.callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  margin-top: 10px;
}
.callout-label {
  color: var(--muted);
  font-size: 0.92rem;
}
.callout-value {
  font-weight: 800;
}

.form {
  display: grid;
  gap: 12px;
  margin-top: 10px;
}
label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-weight: 700;
}
input,
select,
textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  outline: none;
}
input:focus,
select:focus,
textarea:focus {
  border-color: rgba(79, 209, 197, 0.55);
  box-shadow: 0 0 0 3px rgba(79, 209, 197, 0.12);
}

.alert {
  padding: 10px 12px;
  border-radius: 14px;
  margin: 10px 0 12px;
  border: 1px solid var(--border);
}
.alert.success {
  background: rgba(79, 209, 197, 0.12);
  color: var(--text);
}
.alert.error {
  background: rgba(248, 113, 113, 0.12);
  color: var(--text);
}

.tag-list {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.tag {
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-weight: 700;
}

.site-footer {
  padding: 26px 0;
  border-top: 1px solid var(--border);
  background: rgba(11, 18, 32, 0.65);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 14px;
}
.site-footer h4 {
  margin: 0 0 10px;
}
.site-footer a {
  display: block;
  color: var(--muted);
  margin: 6px 0;
}
.site-footer a:hover {
  color: var(--text);
}
.footer-brand {
  margin-bottom: 8px;
}

.copyright {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 900px) {
  .hero-grid,
  .grid-3,
  .grid-2,
  .split,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}