/* ============================================================
   Santa Fe Link — hoja de estilos principal
   ============================================================ */

:root {
  --color-primary: #155e75;      /* azul petróleo */
  --color-primary-dark: #0e4a5c;
  --color-accent: #f59e0b;       /* ámbar */
  --color-accent-dark: #d97706;
  --color-text: #1e293b;
  --color-text-muted: #475569;
  --color-bg: #ffffff;
  --color-bg-alt: #f1f5f9;
  --color-border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
  --container: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

img { max-width: 100%; height: auto; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
  flex-wrap: wrap;
}

.brand img { display: block; }

.site-nav {
  display: flex;
  gap: 1.5rem;
}

.site-nav a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-accent-dark);
  text-decoration: underline;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  text-align: center;
  padding: 4.5rem 0;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin: 0 0 0.75rem;
}

.hero-sub {
  max-width: 620px;
  margin: 0 auto 2rem;
  font-size: 1.1rem;
  color: #e0f2fe;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  margin: 0.25rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: #1a1305;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-accent-dark);
  color: #fff;
}

.btn-outline {
  border: 2px solid #fff;
  color: #fff;
}

.btn-outline:hover,
.btn-outline:focus-visible {
  background: #fff;
  color: var(--color-primary);
}

/* ---------- Secciones ---------- */
.section { padding: 4rem 0; }

.section-alt { background: var(--color-bg-alt); }

.section h2 {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--color-primary);
  margin: 0 0 0.5rem;
}

.section-sub {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

/* ---------- Planes ---------- */
.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.plan {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
}

.plan-featured {
  border: 2px solid var(--color-accent);
}

.plan-badge {
  position: absolute;
  top: -0.85rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #1a1305;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.2rem 1rem;
  border-radius: 999px;
  margin: 0;
}

.plan-name {
  margin: 0 0 0.25rem;
  color: var(--color-primary);
  font-size: 1.2rem;
}

.plan-speed {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-text);
  margin: 0;
}

.plan-speed span {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.plan-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  margin: 0.25rem 0 1rem;
}

.plan-price span {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.plan-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  color: var(--color-text-muted);
  flex-grow: 1;
}

.plan-features li {
  padding: 0.35rem 0;
  border-bottom: 1px dashed var(--color-border);
}

.plan-features li:last-child { border-bottom: none; }

.plan-folio {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.plan-notes {
  margin-top: 2rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---------- Contacto ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
}

.contact-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  text-align: center;
}

.contact-card h3 {
  margin: 0 0 0.5rem;
  color: var(--color-primary);
  font-size: 1.05rem;
}

.contact-card a {
  color: var(--color-accent-dark);
  text-decoration: none;
  font-weight: 600;
}

.contact-card a:hover,
.contact-card a:focus-visible { text-decoration: underline; }

.contact-card address { font-style: normal; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: #cbd5e1;
  padding: 2.5rem 0;
  text-align: center;
  font-size: 0.9rem;
}

.footer-logo {
  background: #fff;
  border-radius: 8px;
  padding: 0.4rem 0.8rem;
  margin-bottom: 0.75rem;
}

.footer-legal { margin-top: 1rem; }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .header-inner { justify-content: center; }
  .hero { padding: 3rem 0; }
  .section { padding: 2.75rem 0; }
}