/* XDte — estilos globales (HTML estático, sin dependencias) */
:root {
  --color-bg: #f6f8fb;
  --color-surface: #ffffff;
  --color-text: #1a2332;
  --color-muted: #5c6b7f;
  --color-border: #e2e8f0;
  --color-accent: #0b6bcb;
  --color-accent-hover: #0956a3;
  --color-whatsapp: #25d366;
  --color-whatsapp-hover: #1ebe57;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(26, 35, 50, 0.08);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif;
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

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

a {
  color: var(--color-accent);
}

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

/* ——— Layout ——— */
.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* ——— Header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  min-height: 4rem;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
}

.logo-link img {
  width: auto;
  height: 44px;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--color-text);
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] span {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::after {
  top: 0;
  transform: rotate(-45deg);
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  align-items: center;
}

.main-nav a {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-accent);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .main-nav.is-open {
    max-height: 320px;
  }

  .main-nav ul {
    flex-direction: column;
    padding: 1rem 1.5rem 1.25rem;
    align-items: flex-start;
  }
}

/* ——— Top bar contact ——— */
.top-bar {
  background: var(--color-text);
  color: #e8eef5;
  font-size: 0.875rem;
}

.top-bar .container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: center;
  padding: 0.5rem 0;
}

.top-bar a {
  color: #fff;
  text-decoration: none;
}

.top-bar a:hover {
  text-decoration: underline;
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

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

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

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

.btn-secondary:hover {
  background: rgba(11, 107, 203, 0.08);
  color: var(--color-accent-hover);
}

.btn-whatsapp {
  background: var(--color-whatsapp);
  color: #fff;
}

.btn-whatsapp:hover {
  background: var(--color-whatsapp-hover);
  color: #fff;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-row--center {
  justify-content: center;
}

/* ——— Hero ——— */
.hero {
  padding: 3rem 0 3.5rem;
  background: linear-gradient(165deg, #e8f2fc 0%, var(--color-bg) 55%);
  border-bottom: 1px solid var(--color-border);
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hero-lead {
  margin: 0 0 1.5rem;
  font-size: 1.125rem;
  color: var(--color-muted);
  max-width: 36rem;
}

/* ——— Sections ——— */
section {
  padding: 3rem 0;
}

.section-title {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.section-intro {
  margin: 0 0 2rem;
  color: var(--color-muted);
  max-width: 40rem;
}

/* ——— Cards grid ——— */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card h2,
.card h3 {
  margin: 0;
  font-size: 1.125rem;
}

.card .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.card p {
  margin: 0;
  flex: 1;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

/* ——— Highlight band ——— */
.band {
  background: var(--color-text);
  color: #f0f4f8;
  padding: 3rem 0;
}

.band h2 {
  margin: 0 0 1rem;
  font-size: 1.35rem;
}

.band p {
  margin: 0 0 1.5rem;
  max-width: 42rem;
  opacity: 0.95;
}

.band .btn-primary {
  background: #fff;
  color: var(--color-text);
}

.band .btn-primary:hover {
  background: #e8eef5;
  color: var(--color-text);
}

/* ——— Services ——— */
.services-list {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .services-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.service-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #0b6bcb, #3d9aed);
  color: #fff;
  font-weight: 800;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-item p {
  margin: 0;
  color: var(--color-muted);
}

/* ——— Plans page ——— */
.page-header {
  padding: 2.5rem 0 1rem;
  text-align: center;
}

.page-header h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
}

.page-header p {
  margin: 0;
  color: var(--color-muted);
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  padding-bottom: 2rem;
}

.plan-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.plan-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 8px 32px rgba(11, 107, 203, 0.15);
}

.plan-card h2 {
  margin: 0;
  font-size: 1.15rem;
}

.plan-price {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}

.plan-card ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--color-muted);
  font-size: 0.9375rem;
  flex: 1;
}

.plan-card li + li {
  margin-top: 0.35rem;
}

.cta-strip {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 3rem;
  box-shadow: var(--shadow);
}

.cta-strip h2 {
  margin: 0 0 1rem;
  font-size: 1.25rem;
}

/* ——— Contact ——— */
.contact-grid {
  display: grid;
  gap: 2rem;
  padding-bottom: 3rem;
}

@media (min-width: 720px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.contact-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.contact-card h2 {
  margin: 0 0 1rem;
  font-size: 1.2rem;
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.contact-list li {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.contact-list li:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.contact-list strong {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  margin-bottom: 0.25rem;
}

.contact-list a {
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--color-text);
}

.contact-list a:hover {
  color: var(--color-accent);
}

.wa-highlight {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--color-border);
}

.wa-highlight p {
  margin: 0 0 1rem;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

/* ——— Footer ——— */
.site-footer {
  background: var(--color-text);
  color: #a8b8cc;
  font-size: 0.875rem;
  padding: 2rem 0;
  margin-top: auto;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

.site-footer a {
  color: #e8eef5;
}

.layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.layout main {
  flex: 1;
}