/* 
=====================================================
FanFacto Corporate Website - Main Stylesheet
Design inspired by logo's dynamic lines and movement
Industrial-modern aesthetic with accessibility focus
=====================================================
*/

/* =====================================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ===================================================== */
:root {
  /* Logo Colors - Exact from brand */
  --color-neon-yellow: #EFFF00;
  --color-black: #000000;
  --color-white: #FFFFFF;

  /* Functional Colors - Light Mode */
  --color-primary: var(--color-neon-yellow);
  --color-text: var(--color-black);
  --color-background: var(--color-white);
  --color-surface: #F5F5F5;
  --color-border: #E0E0E0;

  /* Accent Colors */
  --color-accent-yellow: #FFF44F;
  --color-accent-dark: #333333;
  --color-gray-light: #F8F8F8;
  --color-gray-medium: #999999;
  --color-gray-dark: #666666;

  /* Semantic Colors */
  --color-success: #00D26A;
  --color-error: #FF3860;
  --color-warning: #FFDD57;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.375rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.75rem);
  --text-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 3rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.75rem);
  --text-5xl: clamp(3rem, 2rem + 5vw, 4.5rem);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --container-max: 1400px;
  --container-narrow: 800px;
  --container-wide: 1600px;
  --header-height: 80px;

  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --border-width: 2px;
  --border-heavy: 4px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 20px rgba(239, 255, 0, 0.3);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --color-text: var(--color-white);
  --color-background: #1A1A1A;
  --color-surface: #242424;
  --color-border: #404040;
  --color-accent-dark: #E0E0E0;
  --color-gray-light: #2A2A2A;
  --color-gray-medium: #999999;
  --color-gray-dark: #CCCCCC;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px rgba(239, 255, 0, 0.5);
}

/* =====================================================
   RESET & BASE STYLES
   ===================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

/* =====================================================
   TYPOGRAPHY
   ===================================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

h1 {
  font-size: var(--text-5xl);
}

h2 {
  font-size: var(--text-4xl);
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: var(--space-md);
  max-width: 70ch;
}

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

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

strong,
b {
  font-weight: 700;
}

em,
i {
  font-style: italic;
}

/* =====================================================
   LAYOUT UTILITIES
   ===================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.container-wide {
  max-width: var(--container-wide);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-sm {
  padding: var(--space-3xl) 0;
}

.section-lg {
  padding: var(--space-5xl) 0;
}

/* =====================================================
   HEADER & NAVIGATION
   ===================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-background);
  border-bottom: var(--border-width) solid var(--color-border);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] .header.scrolled {
  background-color: rgba(26, 26, 26, 0.95);
}

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

.header__logo {
  height: 50px;
  width: auto;
  transition: transform var(--transition-fast);
}

.header__logo:hover {
  transform: scale(1.05);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: nowrap;
}

/* Ensure theme toggle and language switcher don't get squished */
.theme-toggle,
.lang-switcher {
  flex-shrink: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__list {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  margin: 0;
}

.nav__link {
  font-weight: 500;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: var(--space-xs) var(--space-sm);
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

.nav__link:hover,
.nav__link:focus {
  border-bottom-color: var(--color-primary);
}

.nav__link--active {
  border-bottom-color: var(--color-primary);
}

/* Mobile Navigation Toggle */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  z-index: var(--z-modal);
}

.nav__toggle-icon {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  position: relative;
  transition: background-color var(--transition-fast);
}

.nav__toggle-icon::before,
.nav__toggle-icon::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  transition: transform var(--transition-base);
}

.nav__toggle-icon::before {
  top: -8px;
}

.nav__toggle-icon::after {
  bottom: -8px;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon {
  background-color: transparent;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon::before {
  transform: rotate(45deg) translate(6px, 6px);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon::after {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: var(--border-width) solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-black);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.btn--primary:hover,
.btn--primary:focus {
  background-color: var(--color-accent-yellow);
  color: var(--color-black);
  /* Mantener texto negro en hover */
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

.btn--secondary:hover,
.btn--secondary:focus {
  background-color: var(--color-text);
  color: var(--color-background);
}

.btn--large {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--text-lg);
}

.btn--small {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
}

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

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero__background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
}

/* Animated lines inspired by logo */
.hero__lines {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.line {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.3;
  animation: lineMove 15s linear infinite;
}

.line--top-1 {
  top: 20%;
  width: 40%;
  left: -40%;
  animation-delay: 0s;
}

.line--top-2 {
  top: 25%;
  width: 60%;
  left: -60%;
  animation-delay: 2s;
}

.line--bottom-1 {
  bottom: 20%;
  width: 50%;
  right: -50%;
  animation-delay: 1s;
  animation-direction: reverse;
}

.line--bottom-2 {
  bottom: 25%;
  width: 70%;
  right: -70%;
  animation-delay: 3s;
  animation-direction: reverse;
}

@keyframes lineMove {
  to {
    transform: translateX(200%);
  }
}

.hero__content {
  max-width: 900px;
  z-index: 1;
}

.hero__headline {
  font-size: var(--text-5xl);
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero__highlight {
  color: var(--color-primary);
  position: relative;
  display: inline-block;
  /* Borde negro para mejorar legibilidad del amarillo */
  -webkit-text-stroke: 1.5px var(--color-black);
  text-stroke: 1.5px var(--color-black);
  font-weight: 700;
}

[data-theme="dark"] .hero__highlight {
  /* En dark mode, el stroke puede ser más sutil */
  -webkit-text-stroke: 1px var(--color-black);
  text-stroke: 1px var(--color-black);
}

.hero__highlight::after {
  content: '';
  position: absolute;
  bottom: 0.1em;
  left: 0;
  right: 0;
  height: 0.15em;
  background-color: var(--color-primary);
  opacity: 0.3;
  z-index: -1;
}

.hero__subheadline {
  font-size: var(--text-xl);
  font-weight: 400;
  margin-bottom: var(--space-2xl);
  color: var(--color-gray-dark);
}

[data-theme="dark"] .hero__subheadline {
  color: var(--color-gray-medium);
}

.hero__cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* =====================================================
   SECTIONS
   ===================================================== */
.section__header {
  text-align: center;
  margin-bottom: var(--space-4xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section__eyebrow {
  font-size: var(--text-sm);
  font-weight: 900;
  /* Peso extra para mejor legibilidad */
  text-transform: uppercase;
  letter-spacing: 1.5px;
  /* OPCIÓN 2 ACTIVADA: Badge con fondo amarillo y texto negro */
  background-color: var(--color-primary);
  color: var(--color-black);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  display: inline-block;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  margin-bottom: var(--space-md);

  /* OPCIÓN 1: Texto amarillo con borde negro (comenta lo de arriba y descomenta esto)
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  -webkit-text-stroke: 0.5px var(--color-black);
  text-stroke: 0.5px var(--color-black);
  */
}

[data-theme="dark"] .section__eyebrow {
  /* En dark mode mantener el badge para consistencia */
  box-shadow: 0 2px 8px rgba(239, 255, 0, 0.3);
}

.section__title {
  margin-bottom: var(--space-md);
}

.section__description {
  font-size: var(--text-lg);
  color: var(--color-gray-dark);
  margin: 0 auto;
}

[data-theme="dark"] .section__description {
  color: var(--color-gray-medium);
}

/* =====================================================
   PROBLEM SECTION
   ===================================================== */
.problem {
  background-color: var(--color-gray-light);
  position: relative;
}

.problem__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}

.problem__card {
  padding: var(--space-xl);
  background-color: var(--color-background);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

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

.problem__icon {
  width: 60px;
  height: 60px;
  margin-bottom: var(--space-lg);
  font-size: var(--text-3xl);
}

.problem__card-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
}

/* =====================================================
   PROCESS SECTION
   ===================================================== */
.process__steps {
  display: grid;
  gap: var(--space-3xl);
  margin-top: var(--space-3xl);
}

.step {
  display: grid;
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
  text-align: center;
  /* Centrar contenido */
  flex-direction: column;
  /* Stack items vertically for centering */
  align-items: center;
  /* Center items horizontally */
}

.step__number {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, #d4e600 100%);
  color: var(--color-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
  font-weight: 700;
  box-shadow: var(--shadow-lg);
}

.step__content {
  flex: 1;
  text-align: center;
  /* Ensure text is centered */
  max-width: 800px;
  /* Limit width for better readability */
}

.step__content h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.step__content p {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-text-secondary);
}

[data-theme="dark"] .step__content p {
  color: var(--color-gray-medium);
}

/* =====================================================
   BENEFITS SECTION
   ===================================================== */
.benefits {
  background: linear-gradient(135deg, var(--color-gray-light) 0%, var(--color-background) 100%);
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  /* 3 columnas fijas: 3 arriba, 3 abajo */
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.benefit {
  padding: var(--space-xl);
  text-align: center;
  transition: transform var(--transition-base);
}

.benefit:hover {
  transform: scale(1.05);
}

.benefit__icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-md);
}

.benefit__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
}

.benefit__description {
  color: var(--color-gray-dark);
}

[data-theme="dark"] .benefit__description {
  color: var(--color-gray-medium);
}

/* =====================================================
   GUARANTEE SECTION
   ===================================================== */
.guarantee {
  background-color: var(--color-black);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .guarantee {
  background-color: #0A0A0A;
}

.guarantee * {
  color: var(--color-white);
}

/* Excepciones para botones en guarantee - deben ser legibles */
.guarantee .btn--primary {
  color: var(--color-black) !important;
}

.guarantee .btn--primary:hover {
  color: var(--color-black) !important;
}

.guarantee__content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.guarantee__badge {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--space-xl);
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
  font-weight: 700;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }
}

.guarantee__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-md);
}

.guarantee__subtitle {
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-xl);
}

.guarantee__description {
  font-size: var(--text-lg);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

/* =====================================================
   FOUNDER SECTION
   ===================================================== */
.founder {
  background-color: var(--color-surface);
}

.founder__container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-4xl);
  align-items: center;
}

.founder__image-wrapper {
  position: relative;
}

.founder__image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: var(--border-heavy) solid var(--color-primary);
}

.founder__decorative-line {
  position: absolute;
  width: 100px;
  height: 4px;
  background-color: var(--color-primary);
  top: -20px;
  left: -20px;
  box-shadow: var(--shadow-glow);
}

.founder__content h2 {
  margin-bottom: var(--space-md);
}

.founder__title {
  font-size: var(--text-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-xl);
  font-weight: 600;
}

.founder__bio p {
  font-size: var(--text-lg);
  margin-bottom: var(--space-lg);
}

.founder__credentials {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.credential {
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-background);
  border: var(--border-width) solid var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
}

/* =====================================================
   CTA SECTION
   ===================================================== */
.cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-yellow) 100%);
  color: var(--color-black);
  position: relative;
  overflow: hidden;
}

.cta * {
  color: var(--color-black);
}

.cta__content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-lg);
}

.cta__description {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2xl);
  font-weight: 500;
}

.cta__button-wrapper {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

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

.cta .btn--primary:hover {
  background-color: var(--color-white);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: var(--space-4xl) 0 var(--space-xl);
}

[data-theme="dark"] .footer {
  background-color: #0A0A0A;
}

.footer * {
  color: var(--color-white);
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer__column h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
}

.footer__links {
  list-style: none;
}

.footer__link {
  display: block;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__badges {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.badge {
  padding: var(--space-xs) var(--space-sm);
  background-color: rgba(239, 255, 0, 0.1);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--color-primary);
}

/* =====================================================
   UTILITIES
   ===================================================== */
.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;
}

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

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-0 {
  margin-top: 0;
}

.mb-0 {
  margin-bottom: 0;
}

/* =====================================================
   YELLOW TEXT UTILITIES - Mejoras de Legibilidad
   ===================================================== */

/* Opción 1: Texto amarillo con borde negro (mejor para títulos grandes) */
.text-yellow-outlined {
  color: var(--color-primary);
  -webkit-text-stroke: 1.5px var(--color-black);
  font-weight: 700;
}

.text-yellow-outlined-sm {
  color: var(--color-primary);
  -webkit-text-stroke: 0.5px var(--color-black);
  font-weight: 700;
}

/* Opción 2: Badge con fondo amarillo y texto negro (mejor legibilidad) */
.badge-yellow {
  background-color: var(--color-primary);
  color: var(--color-black);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  font-weight: 700;
  display: inline-block;
  box-shadow: var(--shadow-sm);
}

/* Opción 3: Texto amarillo con sombra negra (alternativa al stroke) */
.text-yellow-shadow {
  color: var(--color-primary);
  text-shadow:
    1px 1px 2px rgba(0, 0, 0, 0.8),
    -1px -1px 2px rgba(0, 0, 0, 0.8),
    1px -1px 2px rgba(0, 0, 0, 0.8),
    -1px 1px 2px rgba(0, 0, 0, 0.8);
  font-weight: 700;
}

/* Dark mode adjustments */
[data-theme="dark"] .text-yellow-outlined {
  -webkit-text-stroke: 1px var(--color-black);
}

[data-theme="dark"] .text-yellow-outlined-sm {
  -webkit-text-stroke: 0.3px var(--color-black);
}

[data-theme="dark"] .text-yellow-shadow {
  text-shadow:
    1px 1px 3px rgba(0, 0, 0, 0.9),
    -1px -1px 3px rgba(0, 0, 0, 0.9),
    1px -1px 3px rgba(0, 0, 0, 0.9),
    -1px 1px 3px rgba(0, 0, 0, 0.9);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 50px;
  height: 50px;
  background-color: var(--color-primary);
  color: var(--color-black);
  border: none;
  border-radius: 50%;
  font-size: var(--text-xl);
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: var(--z-sticky);
}

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

.back-to-top:hover {
  background-color: var(--color-accent-yellow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Dark Mode Toggle */
.theme-toggle {
  background: none;
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-full);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: var(--text-lg);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-black);
}

.theme-toggle:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  gap: var(--space-xs);
}

.lang-switcher__option {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.lang-switcher__option:hover {
  background-color: var(--color-primary);
  color: var(--color-black);
}

.lang-switcher__option--active {
  background-color: var(--color-primary);
  color: var(--color-black);
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 1024px) {
  :root {
    --header-height: 70px;
  }

  .founder__container {
    grid-template-columns: 1fr;
  }

  .step {
    grid-template-columns: 1fr;
  }

  .step:nth-child(even) {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
    --space-4xl: 3rem;
    --space-5xl: 4rem;
  }

  .nav__toggle {
    display: block;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-background);
    border-bottom: var(--border-width) solid var(--color-border);
    flex-direction: column;
    padding: var(--space-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
  }

  .nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }

  .nav__link {
    display: block;
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
  }

  .hero__cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .back-to-top {
    bottom: var(--space-md);
    right: var(--space-md);
    width: 45px;
    height: 45px;
  }
}

/* =====================================================
   ACCESSIBILITY ENHANCEMENTS
   ===================================================== */
@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;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --border-width: 3px;
  }

  .btn {
    border-width: 3px;
  }
}

/* Focus Visible (Keyboard Navigation) */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}


/* =====================================================
   LOGO STYLES
   ===================================================== */
.hero-logo {
  height: 120px;
  width: auto;
  display: inline-block;
}

.mechanism-logo {
  height: 200px;
  width: auto;
  display: inline-block;
}

.cta-logo {
  height: 120px;
  width: auto;
  margin: 0 auto;
  display: block;
}

/* =====================================================
   RESPONSIVE DESIGN - MEDIA QUERIES
   ===================================================== */

/* Tablet y móvil landscape (max-width: 768px) */
@media (max-width: 768px) {

  /* Asegurar que nada exceda el viewport */
  img,
  video,
  iframe {
    max-width: 100%;
    height: auto;
  }

  /* Hero logo más pequeño en tablet */
  .hero-logo {
    height: 80px !important;
  }

  /* Logo de sección Mecanismo Único más pequeño */
  .mechanism-logo {
    height: 120px !important;
  }

  /* Logo CTA más pequeño */
  .cta-logo {
    height: 80px !important;
  }

  /* Benefits grid a 2 columnas en tablet */
  .benefits__grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  /* Mostrar hamburger menu */
  .nav__toggle {
    display: flex !important;
  }

  /* Nav links ocultos por defecto en mobile */
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-background);
    flex-direction: column;
    padding: var(--space-lg);
    box-shadow: var(--shadow-xl);
    display: none;
  }

  .nav__links.active {
    display: flex;
  }
}

/* Móvil portrait (max-width: 480px) */
@media (max-width: 480px) {

  /* Hero logo aún más pequeño en móvil */
  .hero__brand-badge img {
    height: 60px !important;
  }

  /* Logo sección mecanismo más pequeño en móvil */
  #solucion img[alt="FanFacto"] {
    height: 80px !important;
  }

  /* Logo CTA en móvil */
  .cta__content img[alt="FanFacto Logo"] {
    height: 60px !important;
  }

  /* Eliminar nowrap en títulos para evitar scroll horizontal */
  .hero__headline span[style*="nowrap"],
  .section__title span[style*="nowrap"] {
    white-space: normal !important;
  }

  /* Benefits grid a 1 columna en móvil */
  .benefits__grid {
    grid-template-columns: 1fr !important;
  }

  /* Textos más pequeños en móvil */
  .hero__headline {
    font-size: var(--text-3xl) !important;
  }

  .section__title {
    font-size: var(--text-2xl) !important;
  }

  /* Reducir padding en secciones para móvil */
  .section {
    padding: var(--space-2xl) 0;
  }

  /* Botones full-width en móvil */
  .hero__cta {
    flex-direction: column;
  }

  .hero__cta .btn {
    width: 100%;
  }

  /* Founder layout a columna única */
  .founder__container {
    grid-template-columns: 1fr !important;
  }

  /* Ajustar step numbers */
  .step__number {
    width: 60px;
    height: 60px;
    font-size: var(--text-xl);
  }

  /* Footer a columna única */
  .footer__grid {
    grid-template-columns: 1fr !important;
  }
}

/* Print Styles */
@media print {

  .header,
  .nav,
  .back-to-top,
  .theme-toggle,
  .cta {
    display: none;
  }

  body {
    background-color: white;
    color: black;
  }

  a {
    text-decoration: underline;
  }
}