:root {
  --primary: #2f6bef;
  --primary-deep: #1a4fc7;
  --reserved: #ff9e0a;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1a1d26;
  --text-secondary: #5c6478;
  --border: #e3e8f0;
  --radius: 14px;
  --max: 760px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

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

a:hover {
  text-decoration: underline;
}

.site-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  padding: 28px 20px 36px;
}

.site-header-inner,
.page,
.site-footer-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.18);
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 700;
}

.brand h1 {
  font-size: 1.35rem;
  font-weight: 700;
}

.tagline {
  opacity: 0.92;
  font-size: 0.98rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 18px;
  font-size: 0.92rem;
}

.nav a {
  color: rgba(255, 255, 255, 0.95);
  text-decoration: none;
}

.nav a:hover,
.nav a.active {
  text-decoration: underline;
}

.page {
  padding: 28px 20px 48px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 8px 28px rgba(47, 107, 239, 0.06);
}

.card + .card {
  margin-top: 18px;
}

h2 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--primary-deep);
}

h3 {
  font-size: 1.05rem;
  margin: 22px 0 10px;
}

p,
ul {
  margin-bottom: 14px;
}

ul {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 8px;
}

.meta {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.feature-grid {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.feature {
  padding: 16px 18px;
  border-radius: 12px;
  background: #f8faff;
  border: 1px solid #e8eefb;
}

.feature strong {
  display: block;
  margin-bottom: 4px;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.pill {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  background: rgba(47, 107, 239, 0.1);
  color: var(--primary-deep);
}

.contact-box {
  background: #f8faff;
  border: 1px solid #e8eefb;
  border-radius: 12px;
  padding: 18px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px;
  color: var(--text-secondary);
  font-size: 0.88rem;
  text-align: center;
}

.lang-block + .lang-block {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px dashed var(--border);
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}