/* ==========================================================================
   Dr. Gerardo González Mendoza — Sitio web
   Estilos base premium · Mobile-first · Vanilla CSS
   ========================================================================== */

:root {
  --color-primary: #8B0044;
  --color-primary-dark: #6B0035;
  --color-primary-light: #B83370;
  --color-accent: #C9A961;
  --color-accent-dark: #A88A4A;
  --color-bg: #FFFFFF;
  --color-bg-soft: #FAF7F4;
  --color-bg-cream: #F4ECE5;
  --color-text: #2C2C2C;
  --color-text-muted: #6B6B6B;
  --color-border: #E8E2DC;
  --color-success: #2D6A4F;

  --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --max-width: 1200px;
  --max-width-narrow: 880px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 48px rgba(139, 0, 68, 0.12);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --transition: 250ms ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.2;
  margin: 0 0 0.5em;
  color: var(--color-text);
}
h1 { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.625rem, 3.5vw, 2.375rem); letter-spacing: -0.015em; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.625rem); }
h4 { font-size: 1.125rem; font-weight: 600; font-family: var(--font-sans); }

p { margin: 0 0 1.2em; }
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

/* ----- Layout ----- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: var(--max-width-narrow); margin: 0 auto; padding: 0 24px; }
section { padding: 72px 0; }
@media (min-width: 768px) { section { padding: 96px 0; } }

.bg-soft { background: var(--color-bg-soft); }
.bg-cream { background: var(--color-bg-cream); }
.bg-primary { background: var(--color-primary); color: #fff; }
.bg-primary h1, .bg-primary h2, .bg-primary h3 { color: #fff; }

/* ----- Header / Nav ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 24px;
}
.brand { display: flex; flex-direction: column; line-height: 1.1; }
.brand a { color: var(--color-text); }
.brand__name { font-family: var(--font-serif); font-size: 1.25rem; font-weight: 600; }
.brand__tag { font-size: 0.75rem; color: var(--color-primary); letter-spacing: 0.05em; text-transform: uppercase; }

.nav { display: none; gap: 28px; }
.nav a {
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}
.nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}
.nav a:hover::after, .nav a.active::after { width: 100%; }
.nav a.active { color: var(--color-primary); }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--color-text); transition: var(--transition); }

.nav-mobile {
  display: none;
  padding: 16px 0 24px;
  border-top: 1px solid var(--color-border);
}
.nav-mobile.open { display: flex; flex-direction: column; gap: 16px; }
.nav-mobile a { color: var(--color-text); font-weight: 500; padding: 4px 0; }

@media (min-width: 1024px) {
  .nav { display: flex; }
  .nav-toggle { display: none; }
  .nav-mobile { display: none !important; }
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  line-height: 1.2;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-whatsapp {
  background: #25D366;
  color: #fff;
}
.btn-whatsapp:hover { background: #1DA851; color: #fff; }
.btn-light {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}
.btn-light:hover { background: var(--color-bg-cream); }

/* ----- Hero ----- */
.hero {
  position: relative;
  padding: 64px 0 80px;
  background: linear-gradient(135deg, var(--color-bg-cream) 0%, var(--color-bg-soft) 100%);
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}
@media (min-width: 1024px) {
  .hero { padding: 96px 0 120px; }
  .hero__grid { grid-template-columns: 1.1fr 1fr; gap: 80px; }
}
.hero__content h1 { margin-bottom: 24px; }
.hero__lede { font-size: 1.25rem; color: var(--color-text-muted); margin-bottom: 32px; max-width: 580px; line-height: 1.55; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__credentials {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 24px 40px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.hero__credentials strong { color: var(--color-primary); display: block; font-size: 1rem; margin-bottom: 2px; }

.hero__image {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--color-bg-cream);
}
.hero__image img { width: 100%; height: 100%; object-fit: cover; }
.hero__image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--color-text-muted);
  font-style: italic;
  text-align: center;
  padding: 24px;
}

/* ----- Cards / Grids ----- */
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 32px; }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; gap: 48px; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); gap: 32px; }
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); border-color: var(--color-primary-light); }
.card h3 { margin-top: 0; }
.card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-bg-cream);
  color: var(--color-primary);
  margin-bottom: 20px;
  font-size: 1.5rem;
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-weight: 600;
  font-size: 0.95rem;
}
.card__link::after { content: '→'; transition: transform var(--transition); }
.card__link:hover::after { transform: translateX(4px); }

/* ----- Pull quote / accent block ----- */
.pull-quote {
  border-left: 4px solid var(--color-primary);
  padding: 8px 0 8px 28px;
  margin: 32px 0;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-style: italic;
  line-height: 1.4;
  color: var(--color-text);
}

/* ----- Section title ----- */
.section-title { text-align: center; margin-bottom: 56px; }
.section-title h2 { margin-bottom: 16px; }
.section-title p { color: var(--color-text-muted); font-size: 1.125rem; max-width: 640px; margin: 0 auto; }

/* ----- Features list ----- */
.features-list { list-style: none; padding: 0; margin: 0; }
.features-list li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 16px;
  line-height: 1.6;
}
.features-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  margin-top: 3px;
}

/* ----- Steps ----- */
.steps { counter-reset: step; }
.step {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
}
.step:last-child { border-bottom: none; }
.step__number {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
}
.step__content h3 { margin-top: 0; margin-bottom: 8px; font-size: 1.25rem; }
.step__content p { margin-bottom: 0; }

/* ----- CTA banner ----- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 64px 0;
  text-align: center;
}
.cta-banner h2 { color: #fff; margin-bottom: 16px; }
.cta-banner p { color: rgba(255, 255, 255, 0.9); font-size: 1.125rem; margin-bottom: 32px; max-width: 580px; margin-left: auto; margin-right: auto; }
.cta-banner__buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }

/* ----- Footer ----- */
.site-footer {
  background: #1A1A1A;
  color: rgba(255, 255, 255, 0.85);
  padding: 64px 0 24px;
  font-size: 0.9rem;
}
.site-footer h4 { color: #fff; margin-bottom: 16px; font-size: 1rem; }
.site-footer a { color: rgba(255, 255, 255, 0.85); }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}
@media (min-width: 768px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
}
.footer-credentials {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.5;
}
.footer-credentials strong { color: rgba(255, 255, 255, 0.8); display: block; margin-bottom: 4px; }

/* ----- WhatsApp floating button ----- */
.whatsapp-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  transition: all var(--transition);
}
.whatsapp-fab:hover { transform: scale(1.08); }
.whatsapp-fab svg { width: 32px; height: 32px; fill: #fff; }

/* ----- Page header (interior pages) ----- */
.page-header {
  background: var(--color-bg-cream);
  padding: 80px 0 64px;
  text-align: center;
}
.page-header h1 { margin-bottom: 16px; }
.page-header p { font-size: 1.125rem; color: var(--color-text-muted); max-width: 640px; margin: 0 auto; }
.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--color-text-muted); }

/* ----- Article / long-form ----- */
.prose { max-width: var(--max-width-narrow); margin: 0 auto; }
.prose h2 { margin-top: 48px; margin-bottom: 20px; }
.prose h3 { margin-top: 32px; margin-bottom: 12px; color: var(--color-primary); }
.prose ul, .prose ol { padding-left: 24px; margin-bottom: 1.2em; }
.prose li { margin-bottom: 8px; }

/* ----- Accordion / FAQ ----- */
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
}
.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--color-text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-primary);
  transition: transform var(--transition);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item__body { padding-top: 12px; color: var(--color-text-muted); }

/* ----- Trust strip ----- */
.trust-strip {
  background: #fff;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 32px 0;
}
.trust-strip__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  text-align: center;
}
@media (min-width: 768px) { .trust-strip__grid { grid-template-columns: repeat(4, 1fr); } }
.trust-strip__item { padding: 8px; }
.trust-strip__number { font-family: var(--font-serif); font-size: 2.25rem; color: var(--color-primary); font-weight: 600; line-height: 1; }
.trust-strip__label { font-size: 0.85rem; color: var(--color-text-muted); margin-top: 4px; }

/* ----- Contact info block ----- */
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-info__item { display: flex; gap: 16px; align-items: flex-start; }
.contact-info__icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  background: var(--color-bg-cream);
  color: var(--color-primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.contact-info__label { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 2px; }
.contact-info__value { font-weight: 600; color: var(--color-text); }

/* ----- Utility ----- */
.divider { height: 1px; background: var(--color-border); margin: 48px 0; border: none; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }