/* ═══════════════════════════════════════════════════════
   VIDA SALUDABLE — Mobile Responsive Master
   Breakpoints: 768px (refuerzo), 480px, 400px, 360px
   Carga DESPUÉS de todos los CSS de página
   ═══════════════════════════════════════════════════════ */

/* ═══ NAVBAR MOBILE ═══ */
@media (max-width: 768px) {
  .navbar__inner { padding: 0 var(--space-4); }
  .navbar__logo img { height: 36px !important; }
  .navbar__cta .btn--primary.btn--sm { display: none !important; }
  .navbar__cta { gap: var(--space-2); }
  .navbar__hamburger { display: block !important; }
  .navbar__links { display: none !important; }
  .navbar__links.mobile-open {
    display: flex !important;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(249,247,242,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-6) var(--space-4);
    gap: var(--space-1);
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    z-index: 100;
    animation: slideDown 0.3s ease;
    border-bottom: 1px solid var(--vs-border-light);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }
  .navbar__links.mobile-open a {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    transition: background 0.2s;
  }
  .navbar__links.mobile-open a:hover,
  .navbar__links.mobile-open a.active {
    background: var(--vs-bg-green-subtle);
    color: var(--vs-green);
  }
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══ URGENCY BAR ═══ */
@media (max-width: 480px) {
  .urgency-bar {
    font-size: 0.72rem !important;
    padding: 8px var(--space-3) !important;
    line-height: 1.3;
  }
  .urgency-bar strong { display: inline; }
}
@media (max-width: 360px) {
  .urgency-bar { font-size: 0.68rem !important; padding: 6px var(--space-2) !important; }
}

/* ═══ HERO ═══ */
@media (max-width: 768px) {
  .hero { min-height: auto !important; }
  .hero-slide {
    position: relative !important;
    flex-direction: column !important;
    padding: 90px var(--space-4) var(--space-8) !important;
    min-height: auto !important;
  }
  .hero-slide__bg {
    position: relative !important;
    width: 100% !important;
    height: 220px !important;
    border-radius: var(--radius-xl) !important;
    margin-bottom: var(--space-6);
  }
  .hero-slide__bg img { border-radius: var(--radius-xl) !important; }
  .hero__content {
    max-width: 100% !important;
    padding: var(--space-6) !important;
    text-align: center;
    background: rgba(255,255,255,0.85) !important;
  }
  .hero__title { font-size: 1.75rem !important; line-height: 1.15 !important; }
  .hero__desc { font-size: var(--text-base) !important; }
  .hero__actions { justify-content: center; flex-wrap: wrap; }
  .hero__stats {
    flex-wrap: wrap;
    justify-content: center !important;
    gap: var(--space-6) !important;
    margin-top: var(--space-8) !important;
    padding-top: var(--space-6) !important;
  }
  .hero__stat-number { font-size: var(--text-2xl) !important; }
  .slider-dots { bottom: 12px !important; }
  .particles-container { display: none; }
}
@media (max-width: 480px) {
  .hero-slide { padding: 80px var(--space-3) var(--space-6) !important; }
  .hero-slide__bg { height: 180px !important; }
  .hero__content { padding: var(--space-5) var(--space-4) !important; }
  .hero__title { font-size: 1.5rem !important; }
  .hero__desc { font-size: 0.9rem !important; }
  .hero__badge { font-size: 0.75rem !important; padding: 4px 10px !important; }
  .hero__actions .btn { font-size: 0.85rem; padding: 10px 18px; }
}

/* ═══ LIFESTYLE CARDS ═══ */
@media (max-width: 768px) {
  .lifestyle-grid { grid-template-columns: 1fr !important; gap: var(--space-4) !important; }
  .lifestyle-card { padding: var(--space-6) !important; }
}

/* ═══ BENEFIT CARDS ═══ */
@media (max-width: 480px) {
  .benefit-card { padding: var(--space-5) var(--space-4) !important; }
  .benefit-card__icon { width: 52px !important; height: 52px !important; font-size: 22px !important; }
  .benefit-card__title { font-size: var(--text-base) !important; }
}

/* ═══ COLLAGEN SCIENCE — CRITICAL FIX ═══ */
@media (max-width: 768px) {
  .collagen-science-grid {
    grid-template-columns: 1fr !important;
    gap: var(--space-8) !important;
  }
  .collagen-science__stats {
    position: static !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: var(--space-3) !important;
  }
  .collagen-science__text h2 { font-size: var(--text-2xl) !important; }
  .collagen-fact { padding: var(--space-3) !important; }
  .collagen-fact__icon { width: 36px !important; height: 36px !important; font-size: 1.2rem !important; }
}
@media (max-width: 480px) {
  .collagen-stat-card { padding: var(--space-3) !important; }
  .collagen-stat-card__number { font-size: var(--text-2xl) !important; }
  .collagen-stat-card__label { font-size: 0.65rem !important; }
  .collagen-fact p { font-size: 0.78rem !important; }
  .collagen-fact strong { font-size: 0.8rem !important; }
}

/* ═══ PROCESS GRID ═══ */
@media (max-width: 768px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: var(--space-5) !important;
  }
  .process-grid::before { display: none !important; }
  .process-step__num { width: 44px !important; height: 44px !important; font-size: var(--text-base) !important; }
}
@media (max-width: 480px) {
  .process-grid { grid-template-columns: 1fr !important; gap: var(--space-4) !important; }
  .process-step { text-align: left; display: flex; align-items: flex-start; gap: var(--space-3); }
  .process-step__num { margin: 0 !important; flex-shrink: 0; }
  .process-step p { font-size: 0.8rem; }
}

/* ═══ TRUST BADGES ═══ */
@media (max-width: 768px) {
  .trust-badges { grid-template-columns: repeat(3, 1fr) !important; gap: var(--space-3) !important; }
  .trust-badge__icon { font-size: 1.3rem !important; }
  .trust-badge span:last-child { font-size: 0.65rem !important; }
}
@media (max-width: 480px) {
  .trust-badges { grid-template-columns: repeat(2, 1fr) !important; }
  .trust-section { padding: var(--space-5) 0 !important; }
}

/* ═══ FEATURED PRODUCTS ═══ */
@media (max-width: 768px) {
  .featured-products .grid--4 { grid-template-columns: repeat(2, 1fr) !important; gap: var(--space-4) !important; }
}
@media (max-width: 400px) {
  .featured-products .grid--4 { grid-template-columns: 1fr !important; }
  .featured-products .card__image { aspect-ratio: 4/3 !important; }
}

/* ═══ BLOG PREVIEW ═══ */
@media (max-width: 768px) {
  .blog-preview-grid { grid-template-columns: 1fr !important; gap: var(--space-4) !important; }
  .blog-preview-card__body h4 { font-size: var(--text-base) !important; }
}

/* ═══ LUISA SECTION ═══ */
@media (max-width: 768px) {
  .luisa-grid { grid-template-columns: 1fr !important; gap: var(--space-6) !important; }
  .luisa-chat-mockup { display: none !important; }
  .luisa-info h2 { font-size: var(--text-2xl) !important; }
  .luisa-info p { font-size: var(--text-base) !important; }
  .luisa-feature { padding: var(--space-3) !important; }
}

/* ═══ TESTIMONIALS ═══ */
@media (max-width: 768px) {
  #testimonios .grid--3 { grid-template-columns: 1fr !important; }
  .testimonial-card { padding: var(--space-6) var(--space-5) !important; }
  .testimonial-card__quote { font-size: var(--text-base) !important; }
}

/* ═══ SUBSCRIBE ═══ */
@media (max-width: 480px) {
  .subscribe-card { padding: var(--space-6) var(--space-4) !important; }
  .subscribe-card h3 { font-size: var(--text-xl) !important; }
  .subscribe-card p { font-size: 0.85rem !important; }
  .subscribe-form { flex-direction: column !important; }
  .subscribe-form input[type="email"] { border-radius: var(--radius-lg) !important; }
  .subscribe-form .btn { border-radius: var(--radius-lg) !important; width: 100%; }
  .subscribe-card__benefits { flex-direction: column !important; align-items: center; gap: var(--space-2) !important; }
}

/* ═══ CTA SECTION ═══ */
@media (max-width: 768px) {
  .cta-section {
    margin: 0 var(--space-3) !important;
    padding: var(--space-12) var(--space-4) !important;
    border-radius: var(--radius-xl) !important;
  }
  .cta-section h2 { font-size: var(--text-xl) !important; }
  .cta-section p { font-size: 0.85rem !important; }
}
@media (max-width: 480px) {
  .cta-section { margin: 0 !important; border-radius: 0 !important; padding: var(--space-10) var(--space-4) !important; }
  .cta-section .flex-center { flex-direction: column; width: 100%; }
  .cta-section .btn { width: 100%; }
}

/* ═══ FAQ ═══ */
@media (max-width: 480px) {
  #faq .container { padding: 0 var(--space-3) !important; }
  #faq details summary { font-size: 0.85rem !important; padding: 0.75rem 0 !important; }
  #faq details p { font-size: 0.82rem !important; }
}

/* ═══ CANALES OFICIALES ═══ */
@media (max-width: 768px) {
  .official-channels { padding: 32px 0 24px !important; }
  .official-channels h2 { font-size: 1.4rem !important; }
  .official-channels p { font-size: 0.85rem !important; }
  .channels-grid {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 10px !important;
    max-width: 100% !important;
  }
  .channel-card {
    min-width: auto !important;
    width: 100% !important;
    padding: 12px 16px !important;
  }
}

/* ═══ FOOTER ═══ */
@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr !important; gap: var(--space-6) !important; }
  .footer { padding: var(--space-10) 0 var(--space-6) !important; }
  .footer__brand p { max-width: 100% !important; }
  .footer__bottom {
    flex-direction: column !important;
    gap: var(--space-3);
    text-align: center;
    font-size: 0.72rem !important;
  }
}

/* ═══ SOCIAL PROOF TOAST ═══ */
@media (max-width: 480px) {
  .social-proof-toast {
    left: 8px !important; right: 8px !important;
    max-width: none !important;
    bottom: 85px !important;
    padding: 10px 14px !important;
    font-size: 0.75rem;
  }
}

/* ═══ WHATSAPP FLOAT + CHAT WIDGET STACKING ═══ */
@media (max-width: 768px) {
  .whatsapp-float { bottom: 20px !important; right: 16px !important; }
  .whatsapp-float__btn { width: 48px !important; height: 48px !important; }
  .whatsapp-float__btn svg { width: 24px !important; height: 24px !important; }
  .whatsapp-float__tooltip { display: none !important; }

  /* When sticky buy bar is present (producto.html), push floats up */
  body:has(#stickyBuyBar) .whatsapp-float { bottom: 80px !important; }
  body:has(#stickyBuyBar) .chatbot-bubble { bottom: 80px !important; }
  body:has(#stickyBuyBar) .social-proof-toast { bottom: 140px !important; }
}

/* ═══ PRODUCT PAGE ═══ */
@media (max-width: 768px) {
  .product-page { padding: 0.75rem 1rem 5rem !important; }
  .product-layout { grid-template-columns: 1fr !important; gap: 1.25rem !important; }
  .product-gallery { position: static !important; }
  .gallery-main { border-radius: var(--radius-xl) !important; }
}
@media (max-width: 480px) {
  .pi-name { font-size: 1.25rem !important; }
  .pi-price { font-size: 1.6rem !important; }
  .trust-grid { grid-template-columns: repeat(3, 1fr) !important; gap: 4px !important; }
  .trust-item { padding: 8px 2px !important; }
  .trust-item .ti-icon { font-size: 1.1rem !important; }
  .trust-item .ti-text { font-size: 0.62rem !important; }
  .tab-btn { padding: 8px 10px !important; font-size: 0.78rem !important; }
  .benefits-grid { grid-template-columns: 1fr 1fr !important; gap: 8px !important; }
  .related-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
  .faq-question { padding: 12px 14px !important; font-size: 0.82rem !important; }
  .faq-answer-inner { padding: 0 14px 12px !important; font-size: 0.8rem !important; }
}

/* Sticky buy bar mobile refinement */
@media (max-width: 768px) {
  #stickyBuyBar {
    padding: 10px 12px !important;
    gap: 8px !important;
  }
  #stickyBuyBar [style*="font-size:.82rem"] { font-size: 0.75rem !important; }
  #stickyBuyBar button { padding: 10px 16px !important; font-size: 0.82rem !important; border-radius: 10px !important; }
}

/* ═══ CHECKOUT PAGE ═══ */
@media (max-width: 480px) {
  .checkout-header { padding-top: 90px !important; padding-bottom: var(--space-5) !important; }
  .checkout-steps { gap: 0 !important; margin: var(--space-5) auto var(--space-6) !important; }
  .checkout-step__num { width: 30px !important; height: 30px !important; font-size: 0.75rem !important; }
  .checkout-step span { font-size: 0.65rem !important; }
  .checkout-form .card { padding: var(--space-5) var(--space-4) !important; }
  .wompi-btn { font-size: var(--text-base) !important; padding: var(--space-3) !important; }
  .payment-method-badge { font-size: 0.7rem !important; padding: 4px 8px !important; }
  .cart-item__img { width: 48px !important; height: 48px !important; }
}

/* ═══ CATALOG PAGE ═══ */
@media (max-width: 480px) {
  .catalog-header { padding-top: 90px !important; }
  .catalog-header h1 { font-size: var(--text-2xl) !important; }
  .catalog-toolbar { flex-direction: column; align-items: stretch; gap: var(--space-2); }
  .sort-select { width: 100%; }
}

/* ═══ BLOG PAGE ═══ */
@media (max-width: 480px) {
  .blog-hero { padding-top: 90px !important; }
  .blog-grid { grid-template-columns: 1fr !important; }
  .blog-card__body { padding: var(--space-4) !important; }
}

/* ═══ LEGAL / INFO PAGES ═══ */
@media (max-width: 480px) {
  .legal-page, .info-page, .tracking-page {
    padding: 90px var(--space-3) var(--space-8) !important;
  }
}

/* ═══ SECTION GENERAL ═══ */
@media (max-width: 480px) {
  .section { padding: var(--space-10) 0 !important; }
  .section__header { margin-bottom: var(--space-8) !important; }
  .section__header h2 { font-size: var(--text-xl) !important; }
  .section__header p { font-size: 0.85rem !important; }
  .container { padding: 0 var(--space-4) !important; }
  h1 { font-size: var(--text-2xl) !important; }
  h2 { font-size: var(--text-xl) !important; }
}

/* ═══ 360px ULTRA-SMALL ═══ */
@media (max-width: 360px) {
  .container { padding: 0 var(--space-3) !important; }
  .hero__title { font-size: 1.3rem !important; }
  .hero__content { padding: var(--space-4) var(--space-3) !important; }
  .hero__stats { gap: var(--space-4) !important; }
  .hero__stat-number { font-size: var(--text-xl) !important; }
  .hero__stat-label { font-size: 0.65rem !important; }
  .section__header h2 { font-size: var(--text-lg) !important; }
  .pi-name { font-size: 1.1rem !important; }
  .pi-price { font-size: 1.4rem !important; }
  .collagen-science__stats { grid-template-columns: 1fr !important; }
  .trust-badges { grid-template-columns: repeat(2, 1fr) !important; }
  .footer__bottom { font-size: 0.65rem !important; }
  .subscribe-card h3 { font-size: var(--text-lg) !important; }
  .btn--lg { padding: var(--space-3) var(--space-5) !important; font-size: 0.85rem !important; }
}