/* ==========================================================================
   Casa Inteligente - Main Stylesheet
   Optimized CSS: unused rules removed, WCAG AA contrast fixes,
   focus states added, .btn-sm/.btn-lg defined, figure/figcaption,
   organized logically.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Colors */
  --color-primary: #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-primary-light: #3B82F6;
  --color-primary-50: #EFF6FF;
  --color-primary-100: #DBEAFE;
  --color-primary-200: #BFDBFE;

  --color-dark: #111827;
  --color-dark-700: #374151;
  --color-dark-600: #4B5563;
  --color-dark-500: #6B7280;
  --color-dark-400: #9CA3AF;
  --color-dark-300: #D1D5DB;

  --color-light: #F9FAFB;
  --color-light-100: #F3F4F6;
  --color-light-200: #E5E7EB;

  --color-accent: #10B981;
  --color-accent-dark: #059669;
  --color-accent-light: #34D399;
  --color-accent-50: #ECFDF5;

  --color-warning: #F59E0B;
  --color-warning-light: #FEF3C7;

  --color-danger: #EF4444;

  --color-white: #FFFFFF;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
  --font-mono: 'SFMono-Regular', Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;
  --leading-loose: 1.85;

  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-content: 800px;
  --max-width-narrow: 640px;

  /* Borders */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  /* Header */
  --header-height: 64px;
}


/* --------------------------------------------------------------------------
   2. Reset & Base Styles
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-height) + var(--space-4));
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-dark);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

table {
  border-collapse: collapse;
  width: 100%;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* Base Typography - Headings and Paragraphs */
h1 {
  font-size: var(--text-4xl);
  font-weight: var(--font-extrabold);
  line-height: var(--leading-tight);
  color: var(--color-dark);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-dark);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  color: var(--color-dark);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

p {
  line-height: 1.8;
  margin-bottom: 1rem;
  color: var(--color-dark-700);
}

@media (min-width: 768px) {
  h1 {
    font-size: var(--text-5xl);
    margin-bottom: 2rem;
  }

  h2 {
    font-size: var(--text-3xl);
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
  }

  h3 {
    font-size: var(--text-2xl);
    margin-top: 2rem;
    margin-bottom: 1rem;
  }
}


/* --------------------------------------------------------------------------
   3. Layout & Utility Classes
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.section {
  padding: var(--space-16) 0;
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-extrabold);
  color: var(--color-dark);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 3px solid var(--color-primary);
  display: block;
  position: relative;
}

.section-title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1em;
  background: var(--color-primary);
  border-radius: 2px;
  margin-right: var(--space-3);
  vertical-align: middle;
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-10);
  }
}

/* Article content: ensure spacing between title and first paragraph */
.silo-header + .container h1,
.article-intro h1,
main h1 {
  margin-bottom: var(--space-6);
}

.silo-header + .container h1 + p,
.article-intro h1 + p,
main h1 + p {
  margin-top: var(--space-4);
}

/* Ensure article H2/H3 have clear separation from paragraphs */
.article-content h2,
main .section h2:not(.section-title) {
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-light-200);
}

.article-content h3 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.section-intro {
  font-size: var(--text-lg);
  color: var(--color-dark-500);
  margin-bottom: var(--space-8);
}

.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge--accent {
  background-color: var(--color-accent-50);
  color: var(--color-accent-dark);
}


/* --------------------------------------------------------------------------
   4. Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-light-200);
  height: var(--header-height);
  transition: box-shadow var(--transition-base);
}

.site-header--scrolled {
  box-shadow: var(--shadow-md);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo - supports both .site-logo (template) and .logo (embedded) */
.site-logo,
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo:hover,
.logo:hover {
  color: var(--color-primary);
}

.site-logo svg,
.logo svg {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}

.site-logo span,
.logo span {
  white-space: nowrap;
}

/* Header Inner (non-BEM layout variant used in embedded headers) */
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Desktop Navigation */
.main-nav {
  display: none;
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
  }
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.main-nav__item {
  position: relative;
}

.main-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-dark-600);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.main-nav__link:hover,
.main-nav__link--active {
  color: var(--color-primary);
  background-color: var(--color-primary-50);
}

.main-nav__link .nav-icon {
  font-size: var(--text-base);
}

/* Dropdown Arrow */
.main-nav__link .dropdown-arrow {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
}

.main-nav__item:hover .dropdown-arrow {
  transform: rotate(180deg);
}

/* Dropdown Menu (BEM from template) */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background-color: var(--color-white);
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
  z-index: 100;
}

.main-nav__item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu__link {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-dark-600);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-menu__link:hover {
  background-color: var(--color-primary-50);
  color: var(--color-primary);
}

/* Non-BEM dropdown (embedded headers use .has-dropdown + .dropdown) */
.has-dropdown {
  position: relative;
}

.has-dropdown > .dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-white);
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
  z-index: 100;
  list-style: none;
}

/* Prevent last dropdown from overflowing right edge - use right:0 but keep dropping down */
.has-dropdown:last-child > .dropdown,
.has-dropdown:nth-last-child(2) > .dropdown {
  left: auto;
  right: 0;
}

/* Ensure all dropdowns drop DOWN (not sideways) */
.has-dropdown > .dropdown {
  top: 100%;
}

.has-dropdown:hover > .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown li {
  list-style: none;
}

.dropdown li a {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-dark-600);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.dropdown li a:hover {
  background-color: var(--color-primary-50);
  color: var(--color-primary);
}

/* Menu Toggle (non-BEM variant used in embedded headers) */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.menu-toggle:hover {
  background-color: var(--color-light);
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-dark);
  border-radius: 1px;
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

/* Hamburger Button (BEM from template) */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.hamburger:hover {
  background-color: var(--color-light);
}

@media (min-width: 1024px) {
  .hamburger {
    display: none;
  }
}

.hamburger__line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-dark);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.hamburger--active .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger--active .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger--active .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-white);
  overflow-y: auto;
  z-index: 999;
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.mobile-nav--open {
  transform: translateX(0);
}

.mobile-nav__list {
  padding: var(--space-4);
}

.mobile-nav__item {
  border-bottom: 1px solid var(--color-light-200);
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-2);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-dark-600);
  transition: color var(--transition-fast);
}

.mobile-nav__link:hover,
.mobile-nav__link--active {
  color: var(--color-primary);
}

.mobile-nav__link .nav-icon {
  font-size: var(--text-xl);
}

body.nav-open {
  overflow: hidden;
}

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

/* Embedded nav links styling */
.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.main-nav li a {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-dark-600);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.main-nav li a:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-50);
}

/* Mobile: dropdown opens inline (stacked) instead of absolute */
@media (max-width: 1023px) {
  .main-nav {
    display: none;
  }

  .main-nav.active {
    display: block;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    padding: var(--space-4);
  }

  .main-nav.active ul {
    flex-direction: column;
    gap: 0;
  }

  .main-nav.active li a {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
  }

  .main-nav.active .has-dropdown > .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: var(--space-4);
    min-width: auto;
    display: none;
  }

  .main-nav.active .has-dropdown.open > .dropdown {
    display: block;
  }
}


/* --------------------------------------------------------------------------
   5. Breadcrumbs
   -------------------------------------------------------------------------- */
.breadcrumb {
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
  color: var(--color-dark-500);
}

.breadcrumb a {
  color: var(--color-dark-500);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb .sep {
  margin: 0 var(--space-1);
  color: var(--color-dark-400);
}

/* BEM breadcrumb (from components.js) */
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-dark-500);
}

.breadcrumb__item:not(:last-child)::after {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%239CA3AF'%3E%3Cpath fill-rule='evenodd' d='M7.21 14.77a.75.75 0 01.02-1.06L11.168 10 7.23 6.29a.75.75 0 111.04-1.08l4.5 4.25a.75.75 0 010 1.08l-4.5 4.25a.75.75 0 01-1.06-.02z'/%3E%3C/svg%3E");
  background-size: contain;
  flex-shrink: 0;
}

.breadcrumb__link {
  color: var(--color-dark-500);
  transition: color var(--transition-fast);
}

.breadcrumb__link:hover {
  color: var(--color-primary);
}

.breadcrumb__current {
  color: var(--color-dark);
  font-weight: var(--font-medium);
}


/* --------------------------------------------------------------------------
   6. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  min-height: 20vh;
  display: flex;
  align-items: center;
  padding: var(--space-4) 0;
  background: linear-gradient(135deg, rgba(30,58,138,0.7) 0%, rgba(30,64,175,0.65) 50%, rgba(37,99,235,0.6) 100%),
              url('/images/hero/smart-home-hero.webp') center/cover no-repeat;
  color: #fff;
}

.hero h1 {
  color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
  font-size: var(--text-3xl);
  margin-bottom: var(--space-2);
}

.hero p {
  color: rgba(255,255,255,0.9);
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
}

@media (min-width: 768px) {
  .hero {
    padding: var(--space-6) 0;
    min-height: 25vh;
  }
  .hero h1 {
    font-size: var(--text-4xl);
  }
}

.hero-content {
  max-width: var(--max-width-content);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.hero-buttons .btn {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
}


/* --------------------------------------------------------------------------
   7. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 2px solid transparent;
  line-height: var(--leading-normal);
  text-decoration: none;
}

/* Non-BEM button variants used in HTML */
.btn-primary,
.btn.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-primary-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* BEM button variants (from components.js) */
.btn--cta {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn--cta:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Button sizes - BEM style (from components.js) */
.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn--full {
  width: 100%;
}

/* Button sizes - non-BEM (used in HTML) */
.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.1rem;
}

/* Affiliate CTA Button -- extra prominent (BEM from components.js) */
.btn--affiliate {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-white);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.35);
  position: relative;
  overflow: hidden;
}

.btn--affiliate:hover {
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(16, 185, 129, 0.45);
}

.btn--affiliate::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -60%;
  width: 40%;
  height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: rotate(25deg);
  animation: btn-shine 3s infinite;
}

@keyframes btn-shine {
  0% { left: -60%; }
  20% { left: 120%; }
  100% { left: 120%; }
}

.btn--affiliate .btn-icon {
  font-size: var(--text-xl);
}

/* Non-BEM affiliate button (used in article HTML pages) */
.btn-affiliate {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-lg);
  color: var(--color-white);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-affiliate:hover {
  transform: translateY(-1px);
  color: var(--color-white);
}

.btn-affiliate .btn-icon {
  font-size: var(--text-base);
}

.btn-amazon {
  background-color: #FF9900;
}

.btn-amazon:hover {
  background-color: #e88a00;
  box-shadow: var(--shadow-md);
}

.btn-aliexpress {
  background-color: #E43225;
}

.btn-aliexpress:hover {
  background-color: #cc2b1f;
  box-shadow: var(--shadow-md);
}

.affiliate-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

/* Focus states for interactive elements (WCAG accessibility) */
.btn-affiliate:focus-visible,
.btn--affiliate:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: 2px;
}

.btn:focus-visible,
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-primary-outline:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: 2px;
}

a:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

button:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: 2px;
}

.menu-toggle:focus-visible,
.hamburger:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: 2px;
}

.faq-item__question:focus-visible,
.faq-question:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: -2px;
}

.scroll-top:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: 2px;
}


/* --------------------------------------------------------------------------
   8. Product Cards
   -------------------------------------------------------------------------- */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

@media (min-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  position: relative;
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

/* BEM product card sub-elements (from components.js) */
.product-card__image-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--color-light);
}

.product-card__image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-4);
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card__image {
  transform: scale(1.05);
}

.product-card__badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
}

.product-card__body {
  padding: var(--space-4);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card__category {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.product-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-2);
  line-height: var(--leading-tight);
}

.product-card__title a {
  color: inherit;
  text-decoration: none;
}

.product-card__title a:hover {
  color: var(--color-primary);
}

.product-card__description {
  font-size: var(--text-sm);
  color: var(--color-dark-500);
  margin-bottom: var(--space-4);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.product-card__price {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-dark);
}

.product-card__price-old {
  font-size: var(--text-sm);
  color: var(--color-dark-400);
  text-decoration: line-through;
  margin-left: var(--space-2);
  font-weight: var(--font-normal);
}

.product-card__footer {
  padding: 0 var(--space-4) var(--space-4);
}

/* Non-BEM product card elements (used in embedded HTML) */
.product-img-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--color-light);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  position: relative;
}

.product-img-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.product-card:hover .product-img-placeholder img {
  transform: scale(1.05);
}

.product-card figure {
  margin: 0;
  width: 100%;
  height: 100%;
}

.product-card figure img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

.product-card .product-img-placeholder figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-price {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin: var(--space-2) 0;
  padding: 0 var(--space-4);
}

.product-rating {
  font-size: var(--text-sm);
  color: var(--color-warning);
  padding: 0 var(--space-4);
  margin-bottom: var(--space-2);
}

.product-rating span {
  color: var(--color-dark-500);
}

.product-card h3 {
  padding: var(--space-3) var(--space-4) 0;
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-dark);
}


/* --------------------------------------------------------------------------
   9. Star Ratings (from components.js)
   -------------------------------------------------------------------------- */
.star-rating {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.star-rating__stars {
  display: inline-flex;
  gap: 1px;
  color: var(--color-warning);
  font-size: var(--text-sm);
}

.star-rating__star {
  width: 16px;
  height: 16px;
}

.star-rating__star--filled {
  color: var(--color-warning);
}

.star-rating__star--half {
  color: var(--color-warning);
  position: relative;
}

.star-rating__star--empty {
  color: var(--color-dark-300);
}

.star-rating__value {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-dark);
  margin-left: var(--space-1);
}

.star-rating__count {
  font-size: var(--text-xs);
  color: var(--color-dark-400);
}


/* --------------------------------------------------------------------------
   10. Blog / Post Cards
   -------------------------------------------------------------------------- */
/* BEM post cards (from components.js) */
.post-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.post-card__image-wrap {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-light);
}

.post-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.post-card:hover .post-card__image {
  transform: scale(1.05);
}

.post-card__body {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-card__category {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.post-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-2);
  line-height: var(--leading-tight);
}

.post-card__title a {
  color: inherit;
  text-decoration: none;
}

.post-card__title a:hover {
  color: var(--color-primary);
}

.post-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-dark-500);
  line-height: var(--leading-relaxed);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-4);
}

.post-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-dark-400);
}

.post-card__date {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.post-card__read-time {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* Non-BEM blog cards (used in embedded HTML) */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

@media (min-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.blog-card {
  display: block;
  background: var(--color-white);
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}

.blog-card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-light);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.blog-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.blog-card:hover .blog-card-img img {
  transform: scale(1.05);
}

.blog-card-content {
  padding: var(--space-4);
}

.blog-card-content h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-2);
  line-height: var(--leading-tight);
}

.blog-card-content p {
  font-size: var(--text-sm);
  color: var(--color-dark-500);
  line-height: var(--leading-relaxed);
}

.blog-card-cat {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}


/* --------------------------------------------------------------------------
   11. Silo / Category Pages
   -------------------------------------------------------------------------- */
.silo-header {
  padding: var(--space-10) 0 var(--space-8);
  background: linear-gradient(135deg, var(--color-primary-50), var(--color-white));
}

.silos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
}

.silo-card {
  display: block;
  padding: 0;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.silo-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}

.silo-card-img {
  width: 100%;
  height: 160px;
  overflow: hidden;
}

.silo-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.silo-card:hover .silo-card-img img {
  transform: scale(1.05);
}

.silo-card-content {
  padding: var(--space-4);
}

.silo-icon {
  font-size: 1.5rem;
  display: inline-block;
  margin-bottom: var(--space-1);
}

.silo-card h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-1);
}

.silo-card p {
  font-size: var(--text-sm);
  color: var(--color-dark-500);
  margin: 0;
}


/* --------------------------------------------------------------------------
   12. Comparison Table
   -------------------------------------------------------------------------- */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: var(--space-6) 0;
}

.comparison-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: var(--space-6) 0;
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-xl);
}

.comparison-table {
  width: 100%;
  min-width: 600px;
  font-size: var(--text-sm);
}

.comparison-table thead {
  background-color: var(--color-primary-50);
}

.comparison-table th {
  padding: var(--space-4);
  text-align: left;
  font-weight: var(--font-semibold);
  color: var(--color-dark);
  border-bottom: 2px solid var(--color-primary-200);
  white-space: nowrap;
}

.comparison-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-light-200);
  color: var(--color-dark-600);
  vertical-align: middle;
}

.comparison-table tbody tr:hover {
  background-color: var(--color-light);
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.comparison-table__product {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--font-medium);
  color: var(--color-dark);
}

.comparison-table__product-img {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  object-fit: contain;
  background-color: var(--color-light);
  padding: 4px;
}

.comparison-table__check {
  color: var(--color-accent);
  font-weight: var(--font-bold);
}

.comparison-table__cross {
  color: var(--color-danger);
}

.comparison-table__highlight {
  background-color: var(--color-accent-50);
}

.comparison-table .btn {
  white-space: nowrap;
}


/* --------------------------------------------------------------------------
   13. Article Content (non-BEM, used in embedded HTML pages)
   -------------------------------------------------------------------------- */
.article-content {
  max-width: var(--max-width-content);
  margin: 0 auto;
}

.article-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary-200);
}

.article-content h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.article-content p {
  line-height: 1.85;
  margin-bottom: 1.25rem;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  line-height: 1.8;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content section,
.article-content > div {
  margin-bottom: 2rem;
}

.article-header {
  margin-bottom: var(--space-8);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-dark-500);
  margin-bottom: var(--space-4);
}

.article-category {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-white);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.article-intro {
  font-size: var(--text-lg);
  color: var(--color-dark-600);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.article-updated {
  font-size: var(--text-sm);
  color: var(--color-accent-dark);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-4);
}

.reading-time {
  font-size: var(--text-sm);
  color: var(--color-dark-500);
}

.verdict-box {
  background: linear-gradient(135deg, var(--color-accent-50), var(--color-primary-50));
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin: var(--space-6) 0;
}

.verdict-box h3 {
  font-size: var(--text-xl);
  color: var(--color-dark);
  margin-bottom: var(--space-3);
}

/* Quick picks */
.quick-picks {
  background-color: var(--color-light);
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin: var(--space-6) 0;
}

.quick-picks h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-4);
}

.quick-picks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.quick-pick {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.quick-pick h4 {
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
}

.quick-pick p {
  font-size: var(--text-sm);
  color: var(--color-dark-500);
  margin-bottom: var(--space-3);
}

.pick-badge {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-weight: var(--font-bold);
  font-size: var(--text-sm);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-2);
}

.related-links {
  list-style: disc;
  padding-left: var(--space-6);
}

.related-links li {
  margin-bottom: var(--space-2);
}

.cross-silo-links {
  margin: var(--space-8) 0;
}

.cross-silo-links h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}

.hub-link {
  margin-top: var(--space-4);
  font-size: var(--text-base);
}

.hub-link a {
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}

.hub-link a:hover {
  text-decoration: underline;
}

.authority-links {
  background: #F0F9FF;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin: var(--space-6) 0;
}

.authority-links h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}

.authority-links ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.authority-links a {
  color: #1E40AF;
  text-decoration: underline;
}

.authority-links a:hover {
  color: var(--color-primary);
}


/* --------------------------------------------------------------------------
   14. Pros & Cons Box
   -------------------------------------------------------------------------- */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

@media (min-width: 640px) {
  .pros-cons {
    grid-template-columns: 1fr 1fr;
  }
}

.pros-cons__col {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
}

.pros-cons__col--pros {
  background-color: var(--color-accent-50);
  border: 1px solid #A7F3D0;
}

.pros-cons__col--cons {
  background-color: #FEF2F2;
  border: 1px solid #FECACA;
}

.pros-cons__title {
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pros-cons__col--pros .pros-cons__title {
  color: var(--color-accent-dark);
}

.pros-cons__col--cons .pros-cons__title {
  color: var(--color-danger);
}

.pros-cons__list {
  list-style: none;
  padding: 0;
}

.pros-cons__list li {
  padding: var(--space-2) 0;
  padding-left: var(--space-6);
  position: relative;
  font-size: var(--text-sm);
  color: var(--color-dark-700);
}

.pros-cons__col--pros .pros-cons__list li::before {
  content: '+';
  position: absolute;
  left: 0;
  font-weight: var(--font-bold);
  color: var(--color-accent);
  font-size: var(--text-lg);
  line-height: 1.4;
}

.pros-cons__col--cons .pros-cons__list li::before {
  content: '-';
  position: absolute;
  left: var(--space-1);
  font-weight: var(--font-bold);
  color: var(--color-danger);
  font-size: var(--text-lg);
  line-height: 1.4;
}

/* Non-BEM pros/cons (used in comparador page) */
.pros-list,
.cons-list {
  padding: var(--space-4);
}

.pros-list li,
.cons-list li {
  padding: var(--space-1) 0;
  font-size: var(--text-sm);
  color: var(--color-dark-700);
}


/* --------------------------------------------------------------------------
   15. FAQ Accordion
   -------------------------------------------------------------------------- */
.faq-section {
  max-width: var(--max-width-content);
  margin: var(--space-8) auto;
}

.faq-section__title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-6);
}

.faq-item {
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-dark-300);
}

.faq-item--open {
  border-color: var(--color-primary-200);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-4) var(--space-5);
  text-align: left;
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-dark);
  background-color: var(--color-white);
  cursor: pointer;
  gap: var(--space-4);
  transition: background-color var(--transition-fast);
}

.faq-item--open .faq-item__question {
  background-color: var(--color-primary-50);
  color: var(--color-primary-dark);
}

.faq-item__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-base);
  color: var(--color-dark-400);
}

.faq-item--open .faq-item__icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base) ease-out;
}

.faq-item--open .faq-item__answer {
  max-height: 600px;
  transition: max-height var(--transition-slow) ease-in;
}

.faq-item__answer-inner {
  padding: 0 var(--space-5) var(--space-5);
  font-size: var(--text-base);
  color: var(--color-dark-600);
  line-height: var(--leading-relaxed);
}

.faq-item__answer-inner p {
  margin-bottom: var(--space-3);
}

.faq-item__answer-inner p:last-child {
  margin-bottom: 0;
}

/* Non-BEM FAQ (used in embedded article pages) */
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-4) var(--space-5);
  text-align: left;
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-dark);
  background-color: var(--color-white);
  cursor: pointer;
  gap: var(--space-4);
  transition: background-color var(--transition-fast);
}

.faq-question svg {
  flex-shrink: 0;
  transition: transform var(--transition-base);
  color: var(--color-dark-400);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base) ease-out;
  padding: 0 var(--space-5);
}

.faq-answer p {
  padding-bottom: var(--space-4);
  font-size: var(--text-base);
  color: var(--color-dark-600);
  line-height: var(--leading-relaxed);
}


/* --------------------------------------------------------------------------
   16. Affiliate CTA Box (from components.js)
   -------------------------------------------------------------------------- */
.cta-box {
  background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-accent-50) 100%);
  border: 2px solid var(--color-primary-200);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  margin: var(--space-8) 0;
}

.cta-box__icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-3);
}

.cta-box__title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-2);
}

.cta-box__text {
  font-size: var(--text-base);
  color: var(--color-dark-500);
  margin-bottom: var(--space-5);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-box__price {
  font-size: var(--text-3xl);
  font-weight: var(--font-extrabold);
  color: var(--color-dark);
  margin-bottom: var(--space-4);
}

.cta-box__price-note {
  font-size: var(--text-sm);
  color: var(--color-dark-400);
  font-weight: var(--font-normal);
  display: block;
  margin-top: var(--space-1);
}

.cta-box__disclosure {
  font-size: var(--text-xs);
  color: var(--color-dark-400);
  margin-top: var(--space-3);
}

.affiliate-disclosure {
  font-size: var(--text-xs);
  color: var(--color-dark-400);
  margin-top: var(--space-3);
  line-height: var(--leading-relaxed);
}

.affiliate-disclosure-box {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}


/* --------------------------------------------------------------------------
   17. Product Specification Box (from components.js)
   -------------------------------------------------------------------------- */
.spec-box {
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin: var(--space-6) 0;
}

.spec-box__header {
  background-color: var(--color-primary-50);
  padding: var(--space-4) var(--space-5);
  font-weight: var(--font-bold);
  color: var(--color-dark);
}

.spec-box__row {
  display: flex;
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--color-light-200);
  font-size: var(--text-sm);
}

.spec-box__row:last-child {
  border-bottom: none;
}

.spec-box__row:nth-child(even) {
  background-color: var(--color-light);
}

.spec-box__label {
  width: 40%;
  font-weight: var(--font-medium);
  color: var(--color-dark);
  flex-shrink: 0;
}

.spec-box__value {
  width: 60%;
  color: var(--color-dark-600);
}


/* --------------------------------------------------------------------------
   18. Table of Contents
   -------------------------------------------------------------------------- */
.toc {
  background-color: var(--color-light);
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin: var(--space-6) 0;
}

.toc h3 {
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-3);
}

.toc ol {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  list-style: decimal;
  padding-left: var(--space-6);
}

.toc ol li {
  font-size: var(--text-sm);
  color: var(--color-dark-600);
}

.toc ol li a {
  color: var(--color-dark-600);
  transition: color var(--transition-fast);
}

.toc ol li a:hover {
  color: var(--color-primary);
}

/* BEM TOC (from components.js) */
.toc__title {
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-3);
}

.toc__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.toc__link {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-dark-600);
  border-radius: var(--radius-md);
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
}

.toc__link:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-50);
  border-left-color: var(--color-primary);
}

.toc__link--active {
  color: var(--color-primary);
  font-weight: var(--font-medium);
  border-left-color: var(--color-primary);
  background-color: var(--color-primary-50);
}

.toc__link--sub {
  padding-left: var(--space-6);
  font-size: var(--text-xs);
}


/* --------------------------------------------------------------------------
   19. Category Cards (from components.js)
   -------------------------------------------------------------------------- */
.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-8) var(--space-5);
  background-color: var(--color-white);
  border: 1px solid var(--color-light-200);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  text-decoration: none;
  color: inherit;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-200);
  color: inherit;
}

.category-card__icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
}

.category-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-2);
}

.category-card__count {
  font-size: var(--text-sm);
  color: var(--color-dark-500);
}


/* --------------------------------------------------------------------------
   20. Trust Section (homepage)
   -------------------------------------------------------------------------- */
.trust-section {
  background-color: var(--color-light);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.trust-item {
  text-align: center;
}

.trust-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--space-3);
}

.trust-item h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-dark);
  margin-bottom: var(--space-2);
}

.trust-item p {
  font-size: var(--text-sm);
  color: var(--color-dark-500);
  line-height: var(--leading-relaxed);
}


/* --------------------------------------------------------------------------
   21. Info Box (used across various pages)
   -------------------------------------------------------------------------- */
.info-box {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
  font-size: var(--text-base);
  background-color: var(--color-primary-50);
  border-left: 4px solid var(--color-primary);
}


/* --------------------------------------------------------------------------
   22. Footer (WCAG AA compliant contrast)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-dark);
  color: #d1d5db;
  padding: var(--space-12) 0 var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

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

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.footer-col {
  color: #d1d5db;
}

.footer-col h4 {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: #f9fafb;
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-col a {
  font-size: var(--text-sm);
  color: #d1d5db;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: #f9fafb;
}

.footer-col p {
  font-size: var(--text-sm);
  color: #d1d5db;
  line-height: var(--leading-relaxed);
}

/* BEM footer column (from template) */
.footer-col__title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: #f9fafb;
  margin-bottom: var(--space-4);
}

.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-col__link {
  font-size: var(--text-sm);
  color: #d1d5db;
  transition: color var(--transition-fast);
}

.footer-col__link:hover {
  color: #f9fafb;
}

.footer-col__text {
  font-size: var(--text-sm);
  color: #d1d5db;
  line-height: var(--leading-relaxed);
}

/* Footer Contact Form */
.footer-contact-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-contact-form input[type="text"],
.footer-contact-form input[type="email"],
.footer-contact-form textarea {
  width: 100%;
  padding: 0.4rem 0.6rem;
  background-color: #1f2937;
  color: #f3f4f6;
  border: 1px solid #374151;
  border-radius: 0.375rem;
  font-size: 0.8rem;
  font-family: inherit;
  transition: border-color 0.2s ease;
  box-sizing: border-box;
}

.footer-contact-form input[type="text"]::placeholder,
.footer-contact-form input[type="email"]::placeholder,
.footer-contact-form textarea::placeholder {
  color: #6b7280;
}

.footer-contact-form input[type="text"]:focus,
.footer-contact-form input[type="email"]:focus,
.footer-contact-form textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

.footer-contact-form textarea {
  resize: vertical;
  min-height: 2.5rem;
}

.footer-contact-form button[type="submit"] {
  padding: 0.45rem 1rem;
  background-color: #3b82f6;
  color: #fff;
  border: none;
  border-radius: 0.375rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.footer-contact-form button[type="submit"]:hover {
  background-color: #2563eb;
  transform: translateY(-1px);
}

.footer-contact-form button[type="submit"]:active {
  transform: translateY(0);
}

.footer-contact-email {
  margin-top: 0.5rem;
  font-size: 0.8rem;
}

.footer-contact-email a {
  color: #93c5fd;
  text-decoration: none;
}

.footer-contact-email a:hover {
  color: #bfdbfe;
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--color-dark-700);
  padding-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-bottom p {
  font-size: var(--text-sm);
  color: #d1d5db;
}

.footer-bottom__copy {
  font-size: var(--text-sm);
  color: #d1d5db;
}

.footer-bottom__disclosure {
  font-size: var(--text-xs);
  color: #d1d5db;
  max-width: 500px;
  line-height: var(--leading-relaxed);
}

.site-footer .affiliate-disclosure {
  color: #d1d5db;
}

/* Social icons */
.footer-social {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #374151;
  color: #d1d5db;
  transition: background 0.2s, color 0.2s;
}

.footer-social a:hover {
  background: #1877F2;
  color: #fff;
}

.footer-social svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.contact-social {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 1rem;
  background: #f1f5f9;
  border-radius: 8px;
}

.contact-social a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #1877F2;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s;
}

.contact-social a:hover {
  opacity: 0.8;
}

.contact-social svg {
  width: 24px;
  height: 24px;
  fill: #1877F2;
}


/* --------------------------------------------------------------------------
   23. Lazy Image Loading
   -------------------------------------------------------------------------- */
img[data-src] {
  opacity: 0;
  transition: opacity var(--transition-base);
}

img[data-src].loaded {
  opacity: 1;
}

img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.3s ease;
}

img[loading="lazy"].loaded,
img.loaded {
  opacity: 1;
}

picture {
  display: block;
  width: 100%;
}

picture img {
  width: 100%;
  height: auto;
}


/* --------------------------------------------------------------------------
   24. Scroll to Top Button
   -------------------------------------------------------------------------- */
.scroll-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 44px;
  height: 44px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  z-index: 900;
  cursor: pointer;
  border: none;
}

.scroll-top--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
}


/* --------------------------------------------------------------------------
   25. Figure & Figcaption
   -------------------------------------------------------------------------- */
figure {
  text-align: center;
  margin: 1.5rem 0;
}

figure img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

figcaption {
  font-size: 0.875rem;
  color: var(--color-dark-500, #6B7280);
  margin-top: 0.5rem;
  font-style: italic;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   26. Print Styles
   -------------------------------------------------------------------------- */
@media print {
  .site-header,
  .site-footer,
  .mobile-nav,
  .hamburger,
  .menu-toggle,
  .scroll-top,
  .btn--affiliate,
  .btn-affiliate,
  .cta-box {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}


/* --------------------------------------------------------------------------
   27. Product-First Layout (images/products above text)
   -------------------------------------------------------------------------- */
/* Article pages: products grid comes before text content */
.products-first {
  display: flex;
  flex-direction: column;
}

.products-first .products-grid,
.products-first .comparison-table-wrap,
.products-first .featured-products {
  order: -1;
}

.products-first .article-text,
.products-first .text-content {
  order: 1;
}

/* Product cards: entire card is clickable */
.product-card {
  cursor: pointer;
  position: relative;
}

.product-card a.product-card-link {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.product-card .btn-amazon,
.product-card .btn-aliexpress,
.product-card a[rel~="sponsored"] {
  position: relative;
  z-index: 2;
}

/* Silo/category cards: ensure cursor pointer for clickability */
.silo-card {
  cursor: pointer;
}

/* Products grid: 2 cols on mobile, 3-4 on desktop */
.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .products-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --------------------------------------------------------------------------
   PERFORMANCE: Reduce motion for users who prefer it (WCAG 2.1)
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --------------------------------------------------------------------------
   PERFORMANCE: Content-visibility for off-screen sections
   -------------------------------------------------------------------------- */
.blog-section,
.products-section,
.categories-section,
.faq-section {
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

/* --------------------------------------------------------------------------
   ACCESSIBILITY: High contrast mode support
   -------------------------------------------------------------------------- */
@media (forced-colors: active) {
  .btn, .btn-primary, .btn-secondary, .btn-affiliate {
    border: 2px solid ButtonText;
  }
  .product-card {
    border: 1px solid CanvasText;
  }
}

/* --------------------------------------------------------------------------
   ACCESSIBILITY: Focus-visible improvements for keyboard navigation
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* --------------------------------------------------------------------------
   PERFORMANCE: Print styles
   -------------------------------------------------------------------------- */
@media print {
  .site-header, .site-footer, .scroll-top, .menu-toggle, nav,
  .cookie-banner, .affiliate-buttons, .btn-affiliate, .btn-amazon {
    display: none !important;
  }
  body {
    color: #000;
    background: #fff;
    font-size: 12pt;
  }
  a {
    color: #000;
    text-decoration: underline;
  }
  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }
  img {
    max-width: 100% !important;
    page-break-inside: avoid;
  }
}

/* --------------------------------------------------------------------------
   PERFORMANCE: Will-change hints for animated elements
   -------------------------------------------------------------------------- */
.product-card {
  will-change: transform;
}

.site-header {
  will-change: box-shadow;
}

/* --------------------------------------------------------------------------
   ACCESSIBILITY: Skip link styling (visible on focus)
   -------------------------------------------------------------------------- */
.sr-only:focus,
.sr-only:focus-within,
a.sr-only:focus {
  position: fixed;
  top: 0;
  left: 0;
  width: auto;
  height: auto;
  padding: 1rem 2rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  z-index: 9999;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   Brand Affiliate Banner Blocks
   -------------------------------------------------------------------------- */
.brand-banner-section {
  background: #f8fafc;
  border-radius: 12px;
  padding: 2rem;
  margin-top: 2rem;
}

.brand-banner {
  background: #fff;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
  text-align: center;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.brand-banner:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.brand-banner h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--color-dark);
}

.brand-banner p {
  color: var(--color-dark-500);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  line-height: 1.5;
}

.brand-banner .btn {
  display: inline-block;
  font-size: 0.95rem;
}