:root {
  --bg: #121212;
  --text: #e0e0e0;
  --muted: #b3b3b3;
  --card: #1e1e1e;
  --accent: #E60023;
  --border: #2a2a2a;
}

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

html, body {
  height: 100%;
}

body {
  font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, Ubuntu, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* Layout utils */
.container {
  width: min(1040px, 100%);
  padding: 0 20px;
  margin: 0 auto;
}

.section {
  padding: 64px 0;
}

.muted {
  color: var(--muted);
  font-size: 0.95rem;
}

/* NAV */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(18, 18, 18, 0.85);
  backdrop-filter: saturate(1.2) blur(6px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  transition: opacity 0.2s;
}

.brand:hover {
  opacity: 0.9;
}

.brand-logo {
  height: 44px;
  width: auto;
  display: block;
  border-radius: 4px;
}

.brand-text {
  font-weight: 700;
  font-size: 1.1rem;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 20px;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.9;
  transition: color 0.2s, opacity 0.2s;
  font-weight: 500;
}

.nav-links a:hover {
  color: #fff;
  opacity: 1;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle .bar {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  margin: 4px 0;
  transition: 0.2s;
}

/* HERO */
.hero {
  display: grid;
  place-items: center;
  padding: 72px 0;
  min-height: calc(100vh - 64px);
}

.hero-card {
  width: min(760px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 40px 28px;
  text-align: center;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

.hero-logo {
  width: 140px;
  height: auto;
  display: block;
  margin: 0 auto 14px;
  border-radius: 8px;
}

h1 {
  font-size: 2.6rem;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
  color: #fff;
}

.lead {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 8px auto 18px;
  max-width: 600px;
}

.pill {
  display: inline-block;
  border: 1px solid var(--border);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  margin: 0.1rem 0.15rem;
  background: #161616;
  font-size: 0.9rem;
  white-space: nowrap;
}

.cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

.btn {
  border: 1px solid var(--border);
  background: #1a1a1a;
  color: #fff;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  transition: transform 0.2s, filter 0.2s;
  font-weight: 600;
  display: inline-block;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
}

.btn.primary:hover {
  filter: brightness(1.1);
}

/* ABOUT */
h2 {
  font-size: 1.8rem;
  margin-bottom: 14px;
  color: #fff;
}

.section > p {
  margin-bottom: 16px;
  line-height: 1.7;
}

.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.card h3 {
  margin-bottom: 10px;
  color: #fff;
  font-size: 1.1rem;
}

.card p {
  color: var(--muted);
  line-height: 1.6;
}

/* PRODUCTS */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.product {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: transform 0.2s, border-color 0.2s;
}

.product:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.product h3 {
  margin-bottom: 12px;
  color: #fff;
  font-size: 1.2rem;
}

.product ul {
  padding-left: 18px;
  color: var(--muted);
}

.product li {
  margin: 0.4rem 0;
  line-height: 1.5;
}

/* FAQ */
details {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin: 10px 0;
  transition: border-color 0.2s;
}

details:hover {
  border-color: var(--accent);
}

details[open] {
  border-color: var(--accent);
}

summary {
  cursor: pointer;
  font-weight: 600;
  color: #fff;
  padding: 4px 0;
}

summary:hover {
  color: var(--accent);
}

details p {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.6;
}

/* CONTACTO */
.contact-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 20px 0;
}

.contact-links a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
  font-weight: 500;
}

.contact-links a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

.contact-links span {
  color: #666;
}

.social {
  margin-top: 12px;
  text-align: center;
}

.social a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
  font-weight: 500;
}

.social a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

.social span {
  color: #666;
  margin: 0 6px;
}

/* LISTAS DE SOPORTE Y TÉRMINOS */
.support-list,
.terms-list {
  margin-top: 16px;
  padding-left: 24px;
  color: var(--muted);
}

.support-list li,
.terms-list li {
  margin: 8px 0;
  line-height: 1.7;
}

.support-list a,
.terms-list a {
  color: var(--accent);
  text-decoration: none;
}

.support-list a:hover,
.terms-list a:hover {
  text-decoration: underline;
}

/* LEGAL / FOOTER */
.legal p {
  color: var(--muted);
  margin-bottom: 12px;
  line-height: 1.7;
}

.legal a {
  color: var(--accent);
  text-decoration: none;
}

.legal a:hover {
  text-decoration: underline;
}

.site-footer {
  padding: 36px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.site-footer p {
  color: var(--muted);
  margin: 4px 0;
}

.legal-info {
  color: #888;
  font-size: 0.9rem;
  margin-top: 8px;
}

/* Responsive */
@media (max-width: 860px) {
  .cards-3,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #161616;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: center;
    padding: 16px 0;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .nav-links a {
    display: block;
    padding: 12px 20px;
  }

  .nav-toggle.open .bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .nav-toggle.open .bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open .bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .hero {
    padding: 48px 0;
    min-height: auto;
  }

  .hero-card {
    padding: 32px 20px;
  }

  h1 {
    font-size: 1.75rem;
  }

  .section {
    padding: 48px 0;
  }
}