:root {
  --bg: #f6f7fb;
  --panel: rgba(17, 24, 39, 0.04);
  --panel-2: rgba(17, 24, 39, 0.03);
  --text: #111827;
  --muted: rgba(17, 24, 39, 0.72);
  --line: rgba(17, 24, 39, 0.12);
  --accent: #7c5cff;
  --accent-2: #22c55e;
  --shadow: 0 16px 40px rgba(17, 24, 39, 0.18);
  --radius: 18px;
  --radius-sm: 14px;
  --container: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1100px 700px at 15% -10%, rgba(124, 92, 255, 0.18), transparent 55%),
    radial-gradient(900px 600px at 90% 0%, rgba(34, 197, 94, 0.12), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(246, 247, 251, 0.78);
  border-bottom: 1px solid var(--line);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.2px;
}

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

.nav a {
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid transparent;
}

.nav a.nav-cta {
  color: var(--text);
  border-color: rgba(17, 24, 39, 0.16);
  background: rgba(17, 24, 39, 0.04);
  font-weight: 700;
}

.nav a.lang-switch {
  color: var(--text);
  border-color: rgba(124, 92, 255, 0.45);
  background: rgba(124, 92, 255, 0.12);
  font-weight: 700;
}

.nav a:hover {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.nav a.nav-cta:hover {
  border-color: rgba(17, 24, 39, 0.28);
  background: rgba(17, 24, 39, 0.06);
}

.nav a.lang-switch:hover {
  border-color: rgba(124, 92, 255, 0.7);
  background: rgba(124, 92, 255, 0.22);
}

.hero {
  padding: 56px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 22px;
  align-items: stretch;
}

.badge {
  display: inline-block;
  margin: 0 0 10px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(124, 92, 255, 0.16);
  border: 1px solid rgba(124, 92, 255, 0.35);
  color: rgba(17, 24, 39, 0.9);
  font-size: 14px;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.4px;
}

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

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #3dd6ff);
  color: #07101c;
  font-weight: 700;
  border: 0;
  box-shadow: var(--shadow);
}

.button:hover {
  filter: brightness(1.05);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border: 1px solid var(--line);
  box-shadow: none;
}

.small-note {
  margin: 0;
  color: rgba(17, 24, 39, 0.58);
  font-size: 14px;
}

.hero-card {
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.04), rgba(17, 24, 39, 0.02));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.hero-card-title {
  margin: 0 0 10px;
  font-size: 18px;
}

.checklist {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.section {
  padding: 28px 0;
}

.section-alt {
  background: rgba(17, 24, 39, 0.02);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  margin-bottom: 14px;
}

.section-head h2 {
  margin: 0;
  font-size: 26px;
  letter-spacing: -0.2px;
}

.muted {
  color: var(--muted);
  margin: 6px 0 0;
}

.post {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.post h1 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.2px;
}

.post h2 {
  margin: 18px 0 8px;
  font-size: 20px;
  letter-spacing: -0.1px;
}

.post p {
  margin: 0 0 10px;
  color: var(--muted);
}

.post ol {
  margin: 8px 0 12px;
  padding-left: 18px;
  color: var(--muted);
}

.post li {
  margin: 6px 0;
}

.post hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 14px 0;
}

.post table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

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

.post th {
  color: var(--text);
  background: rgba(17, 24, 39, 0.04);
}

.post td {
  color: var(--muted);
}

.post img {
  width: 100%;
  max-width: 560px;
  height: auto;
  display: block;
  margin: 10px auto 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px;
  min-height: 170px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0 0 10px;
  color: var(--muted);
}

.card img {
  width: 100%;
  height: auto;
  display: block;
  margin: 10px 0 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
}

.card strong {
  color: var(--text);
}

.tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(17, 24, 39, 0.03);
  color: rgba(17, 24, 39, 0.8);
  font-size: 13px;
}

.card-link {
  display: inline-block;
  margin-top: 4px;
  font-weight: 700;
  color: rgba(17, 24, 39, 0.92);
}

.card-link:hover {
  color: var(--accent);
  text-decoration: underline;
}

.footer {
  padding: 28px 0 18px;
  border-top: 1px solid var(--line);
  background: rgba(17, 24, 39, 0.03);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.9fr;
  gap: 14px;
}

.footer-title {
  margin: 0 0 6px;
  font-size: 18px;
}

.footer-subtitle {
  margin: 0 0 8px;
  font-size: 15px;
  color: rgba(234, 240, 255, 0.9);
}

.footer-link {
  display: block;
  color: var(--muted);
  padding: 4px 0;
}

.footer-link:hover {
  color: var(--text);
}

.footer-bottom {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

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

  .grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}