/* Padelux — estilos base. Paleta unificada del logo (ver DESIGN.md). */
:root {
  --px-blue: #0C8CE9;
  --px-blue-dark: #0A6FBF;
  --px-navy: #0A1A3F;
  --px-cyan: #2FB6F6;
  --px-sky: #7FD4FF;
  --px-white: #FFFFFF;
  --px-bg: #F4F7FB;
  --px-surface: #FFFFFF;
  --px-surface-variant: #E7EEF6;
  --px-outline: #C4D2E2;
  --px-text: #0A1A3F;
  --px-text-secondary: #4A5A73;
  --px-error: #E0413C;
  --px-gradient: linear-gradient(135deg, #0C8CE9 0%, #2FB6F6 100%);
  --px-radius: 14px;
  --px-maxw: 960px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--px-text);
  background: var(--px-bg);
  line-height: 1.6;
}
a { color: var(--px-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

.container { max-width: var(--px-maxw); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.9); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--px-surface-variant);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--px-navy); }
.brand img { height: 36px; width: 36px; object-fit: contain; }
.nav a { color: var(--px-text-secondary); margin-left: 18px; font-size: 15px; }
.nav a:hover { color: var(--px-blue); text-decoration: none; }

/* Botones */
.btn {
  display: inline-block; padding: 12px 22px; border-radius: var(--px-radius);
  font-weight: 600; border: 0; cursor: pointer;
}
.btn-primary { background: var(--px-blue); color: #fff; }
.btn-primary:hover { background: var(--px-blue-dark); text-decoration: none; }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.6); }

/* Hero */
.hero { background: var(--px-gradient); color: #fff; padding: 72px 0; }
.hero h1 { font-size: 40px; margin: 0 0 12px; }
.hero p { font-size: 19px; max-width: 560px; opacity: .95; }
.hero .cta { margin-top: 24px; display: flex; gap: 12px; flex-wrap: wrap; }

/* Features */
.features { padding: 64px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.card {
  background: var(--px-surface); border: 1px solid var(--px-surface-variant);
  border-radius: 16px; padding: 22px;
}
.card h3 { margin: 0 0 8px; color: var(--px-navy); }
.card p { margin: 0; color: var(--px-text-secondary); }

/* Contenido legal */
.legal { padding: 48px 0 72px; }
.legal h1 { color: var(--px-navy); }
.legal h2 { color: var(--px-navy); margin-top: 32px; }
.legal .updated { color: var(--px-text-secondary); font-size: 14px; }
.note {
  background: var(--px-surface-variant); border-left: 4px solid var(--px-blue);
  padding: 14px 18px; border-radius: 8px; margin: 18px 0;
}
.danger { border-left-color: var(--px-error); }

/* Footer */
.site-footer { background: var(--px-navy); color: #cdd8ea; padding: 40px 0; margin-top: 40px; }
.site-footer a { color: var(--px-sky); }
.site-footer .cols { display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; }
.site-footer .muted { color: #8fa1c0; font-size: 14px; }

@media (max-width: 600px) {
  .hero h1 { font-size: 30px; }
  .nav a { margin-left: 12px; }
}