:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f8fb;
  --color-text: #12202b;
  --color-text-muted: #55697a;
  --color-primary: #0d6b8c;
  --color-primary-dark: #0a5570;
  --color-border: #e1e8ee;
  --color-card: #ffffff;
  --color-highlight-bg: #0d6b8c;
  --color-highlight-text: #ffffff;
  --radius: 10px;
  --max-width: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0b141a;
    --color-bg-alt: #101c24;
    --color-text: #eaf1f6;
    --color-text-muted: #9fb2bf;
    --color-primary: #35a6cc;
    --color-primary-dark: #57b8db;
    --color-border: #1e2e38;
    --color-card: #101c24;
    --color-highlight-bg: #35a6cc;
    --color-highlight-text: #0b141a;
  }
}

* { box-sizing: border-box; }

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 12px; }
p { margin: 0 0 16px; color: var(--color-text-muted); }

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.btn:hover { opacity: 0.9; }
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
}
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-lg { padding: 14px 28px; font-size: 17px; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg);
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}
.logo {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
}
.nav-actions { display: flex; gap: 10px; }

/* Hero */
.hero {
  padding: 88px 0 72px;
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}
.hero-inner { text-align: center; max-width: 720px; }
.hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 18px;
  margin: 0 auto 28px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.hero-note {
  font-size: 13px;
  margin: 0;
  color: var(--color-text-muted);
}

/* Hero screenshot */
.hero-shot {
  margin-top: 48px;
}
.hero-shot img {
  display: block;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  box-shadow: 0 20px 60px -20px rgba(13, 107, 140, 0.35);
}

/* Showcase */
.showcase { padding: 8px 0 72px; }
.showcase h2 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 36px;
}
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.showcase-item {
  margin: 0;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.showcase-item img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: 1px solid var(--color-border);
}
.showcase-item figcaption {
  padding: 14px 16px;
  font-size: 13.5px;
  color: var(--color-text-muted);
}

/* Features */
.features { padding: 72px 0; }
.features h2, .pricing h2 {
  text-align: center;
  font-size: 30px;
  margin-bottom: 40px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}
.feature-card h3 { font-size: 17px; }
.feature-card p { margin: 0; font-size: 14.5px; }

/* Pricing */
.pricing { padding: 72px 0 96px; background: var(--color-bg-alt); }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  max-width: 920px;
  margin: 0 auto;
}
.pricing-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
}
.pricing-card-highlight {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary) inset;
}
.price {
  font-size: 34px;
  font-weight: 700;
  color: var(--color-text);
  margin: 4px 0 8px;
}
.price span { font-size: 15px; font-weight: 400; color: var(--color-text-muted); }
.pricing-desc { font-size: 14px; margin-bottom: 20px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
}

@media (max-width: 560px) {
  .header-inner { flex-direction: column; gap: 12px; }
}