/**
 * BilboRacers Framework CSS
 * Sistema visual con estilo NEOMORFISMO + efectos GLOW/NEON
 * 
 * Concepto: "Club de competidores" — Neumorfismo dark con acentos neón
 * 
 * @version 2.0.0
 * @updated 2026-04-29
 */

/* ============================================
   1. VARIABLES CSS (DESIGN TOKENS)
   ============================================ */

:root {
  /* ---- Colores base ---- */
  --color-negro: #0D0D0D;
  --color-naranja: #FF4D00;
  --color-naranja-intenso: #FF6B00;
  --color-cyan: #00E5FF;
  --color-cyan-intenso: #00F5FF;
  --color-blanco: #F5F5F5;
  --color-grafito: #1A1A1A;
  --color-gris-medio: #333333;
  --color-gris-claro: #A0A0A0;

  /* ---- Colores semánticos ---- */
  --color-fondo: var(--color-grafito);
  --color-fondo-secundario: #141414;
  --color-texto: var(--color-blanco);
  --color-texto-secundario: var(--color-gris-claro);
  --color-borde: transparent;
  --color-acento: var(--color-cyan);
  --color-marca: var(--color-naranja);

  /* ---- Neumorfismo (dark mode) ---- */
  --neu-shadow-dark: #0f0f0f;
  --neu-shadow-light: #252525;
  --neu-bg: var(--color-grafito);
  --neu-bg-inset: #111111;
  
  /* Sombras neumórficas */
  --neu-shadow-raised: 
    6px 6px 12px var(--neu-shadow-dark),
    -6px -6px 12px var(--neu-shadow-light);
  --neu-shadow-raised-sm: 
    3px 3px 6px var(--neu-shadow-dark),
    -3px -3px 6px var(--neu-shadow-light);
  --neu-shadow-inset: 
    inset 4px 4px 8px var(--neu-shadow-dark),
    inset -4px -4px 8px var(--neu-shadow-light);
  --neu-shadow-inset-sm: 
    inset 2px 2px 4px var(--neu-shadow-dark),
    inset -2px -2px 4px var(--neu-shadow-light);

  /* ---- GLOW colors ---- */
  --glow-cyan: 0 0 10px rgba(0, 229, 255, 0.5), 0 0 20px rgba(0, 229, 255, 0.3), 0 0 40px rgba(0, 229, 255, 0.1);
  --glow-cyan-intenso: 0 0 15px rgba(0, 229, 255, 0.7), 0 0 30px rgba(0, 229, 255, 0.5), 0 0 60px rgba(0, 229, 255, 0.3);
  --glow-naranja: 0 0 10px rgba(255, 77, 0, 0.5), 0 0 20px rgba(255, 77, 0, 0.3), 0 0 40px rgba(255, 77, 0, 0.1);
  --glow-naranja-intenso: 0 0 15px rgba(255, 77, 0, 0.7), 0 0 30px rgba(255, 77, 0, 0.5), 0 0 60px rgba(255, 77, 0, 0.3);
  --glow-texto-cyan: 0 0 10px rgba(0, 229, 255, 0.5), 0 0 20px rgba(0, 229, 255, 0.3);
  --glow-texto-naranja: 0 0 10px rgba(255, 77, 0, 0.5), 0 0 20px rgba(255, 77, 0, 0.3);

  /* ---- Gradientes ---- */
  --gradiente-cta-naranja: linear-gradient(135deg, var(--color-naranja) 0%, var(--color-naranja-intenso) 100%);
  --gradiente-cta-cyan: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-cyan-intenso) 100%);
  --gradiente-hero: radial-gradient(ellipse at center, transparent 0%, rgba(20, 20, 20, 0.7) 60%, rgba(20, 20, 20, 0.95) 100%);
  --gradiente-seccion: linear-gradient(180deg, var(--color-grafito) 0%, var(--color-fondo-secundario) 50%, var(--color-grafito) 100%);
  --gradiente-headline: linear-gradient(90deg, var(--color-blanco) 0%, var(--color-gris-claro) 100%);
  --gradiente-borde-neon: linear-gradient(135deg, var(--color-naranja), var(--color-cyan));

  /* ---- Tipografía ---- */
  --font-heading: 'Barlow Condensed', Impact, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-weight-heading: 700;
  --font-weight-body: 400;
  --font-weight-medium: 500;

  /* ---- Tamaños tipográficos ---- */
  --font-size-hero: 64px;
  --font-size-h1: 48px;
  --font-size-h2: 32px;
  --font-size-h3: 24px;
  --font-size-body: 16px;
  --font-size-small: 14px;
  --font-size-meta: 13px;

  /* ---- Spacing ---- */
  --container-max: 1280px;
  --gutter: 1.5rem;
  --section-gap-dark: 4rem;
  --section-gap-light: 8rem;

  /* ---- Bordes y radios ---- */
  --border-radius-sm: 0.5rem;
  --border-radius-md: 0.75rem;
  --border-radius-lg: 1rem;
  --border-width: 0;

  /* ---- Transiciones ---- */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* ---- Z-index ---- */
  --z-header: 100;
  --z-overlay: 200;
  --z-modal: 300;
}

/* ============================================
   2. FOUNDATIONS
   ============================================ */

/* ---- Reset ---- */
*,
*::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-body);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-body);
  line-height: 1.6;
  color: var(--color-texto);
  background-color: var(--color-grafito);
  min-height: 100vh;
}

/* ---- Typography base ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-heading);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

h1 { font-size: var(--font-size-hero); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }

p {
  margin-bottom: 1rem;
}

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

a:hover {
  color: var(--color-cyan-intenso);
}

/* ---- Textos con glow ---- */
.texto-glow-cyan {
  text-shadow: var(--glow-texto-cyan);
}

.texto-glow-naranja {
  text-shadow: var(--glow-texto-naranja);
}

.texto-gradiente {
  background: var(--gradiente-headline);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---- Selección ---- */
::selection {
  background-color: var(--color-naranja);
  color: var(--color-blanco);
}

/* ============================================
   3. LAYOUT
   ============================================ */

/* ---- Contenedor ---- */
.contenedor {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.contenedor--narrow {
  max-width: 800px;
}

/* ---- Grid ---- */
.grid {
  display: grid;
  gap: var(--gutter);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* ---- Flex ---- */
.flex { display: flex; }
.flex--center { align-items: center; justify-content: center; }
.flex--between { justify-content: space-between; }
.flex--gap-sm { gap: 0.5rem; }
.flex--gap-md { gap: 1rem; }
.flex--gap-lg { gap: 2rem; }

/* ---- Secciones ---- */
.seccion {
  padding-top: var(--section-gap-dark);
  padding-bottom: var(--section-gap-dark);
}

.seccion--oscura {
  background: var(--color-fondo-secundario);
}

.seccion--grafito {
  background: var(--gradiente-seccion);
}

.seccion--clara {
  background-color: var(--color-blanco);
  color: var(--color-negro);
}

/* ============================================
   4. COMPONENTES — NEOMORFISMO
   ============================================ */

/* ---- 4.1 Header / Navbar ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background: var(--neu-bg);
  box-shadow: var(--neu-shadow-raised);
  padding: 1rem var(--gutter);
}

.header__contenido {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
}

.header__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  font-style: italic;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-naranja);
  text-shadow: var(--glow-texto-naranja);
  transition: all var(--transition-fast);
}

.header__logo:hover {
  color: var(--color-cyan);
  text-shadow: var(--glow-texto-cyan);
  transform: scale(1.02);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.header__link {
  font-family: var(--font-heading);
  font-size: var(--font-size-meta);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gris-claro);
  transition: all var(--transition-fast);
  position: relative;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
}

.header__link:hover {
  color: var(--color-cyan);
  text-shadow: var(--glow-texto-cyan);
  background: var(--neu-bg);
  box-shadow: var(--neu-shadow-inset-sm);
  transform: scale(0.98);
}

.header__link--active {
  color: var(--color-naranja);
  background: var(--neu-bg);
  box-shadow: var(--neu-shadow-inset-sm);
}

.header__link--active:hover {
  color: var(--color-cyan);
}

.header__acciones {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* ---- 4.2 Hero ---- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-fondo-secundario);
}

.hero__fondo {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: var(--gradiente-hero);
}

.hero__contenido {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  padding-top: 8rem;
  width: 100%;
}

.hero__titulo {
  font-size: var(--font-size-hero);
  color: var(--color-blanco);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.hero__titulo--glow {
  text-shadow: var(--glow-texto-cyan);
}

.hero__subtitulo {
  font-size: 1.125rem;
  color: var(--color-gris-claro);
  max-width: 600px;
  margin-bottom: 2rem;
  padding: 1rem 1.5rem;
  background: var(--neu-bg);
  box-shadow: var(--neu-shadow-inset);
  border-radius: var(--border-radius-md);
}

.hero__ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---- 4.3 Botones / CTAs ---- */

/* CTA Primario con gradiente y glow */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: var(--font-weight-heading);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  background: var(--neu-bg);
  box-shadow: var(--neu-shadow-raised);
}

.btn--primario {
  background: var(--gradiente-cta-naranja);
  color: var(--color-blanco);
  box-shadow: 
    var(--neu-shadow-raised),
    var(--glow-naranja);
}

.btn--primario:hover {
  background: var(--gradiente-cta-cyan);
  color: var(--color-negro);
  box-shadow: 
    var(--neu-shadow-raised-sm),
    var(--glow-cyan-intenso);
  transform: translateY(-2px);
}

.btn--secundario {
  background: var(--neu-bg);
  color: var(--color-naranja);
  border: 1px solid var(--color-naranja);
  box-shadow: var(--neu-shadow-raised);
  position: relative;
  overflow: hidden;
}

.btn--secundario::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradiente-borde-neon);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn--secundario:hover {
  border-color: transparent;
  color: var(--color-cyan);
  box-shadow: 
    var(--neu-shadow-raised),
    var(--glow-cyan);
}

.btn--secundario:hover::before {
  opacity: 1;
}

.btn--secundario span,
.btn--secundario svg,
.btn--secundario i {
  position: relative;
  z-index: 1;
}

.btn--cyan {
  background: var(--gradiente-cta-cyan);
  color: var(--color-negro);
  box-shadow: 
    var(--neu-shadow-raised),
    var(--glow-cyan);
}

.btn--cyan:hover {
  background: var(--gradiente-cta-naranja);
  color: var(--color-blanco);
  box-shadow: 
    var(--neu-shadow-raised-sm),
    var(--glow-naranja-intenso);
  transform: translateY(-2px);
}

/* ---- 4.4 Cards de producto — Neumorphic ---- */
.card {
  background: var(--neu-bg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--neu-shadow-raised);
  overflow: hidden;
  transition: all var(--transition-base);
  position: relative;
}

.card:hover {
  box-shadow: 
    var(--neu-shadow-raised),
    0 0 20px rgba(0, 229, 255, 0.3);
  transform: translateY(-4px);
}

.card--featured {
  box-shadow: 
    var(--neu-shadow-raised),
    0 0 20px rgba(0, 229, 255, 0.4);
}

.card--inset {
  background: var(--neu-bg-inset);
  box-shadow: var(--neu-shadow-inset);
}

.card__imagen {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--neu-bg-inset);
}

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

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

.card__tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
  padding: 0.35rem 0.75rem;
  font-family: var(--font-body);
  font-size: var(--font-size-meta);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--neu-bg);
  color: var(--color-blanco);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--neu-shadow-raised-sm);
}

.card__tag--oferta {
  background: var(--gradiente-cta-naranja);
  box-shadow: var(--glow-naranja);
}

.card__contenido {
  padding: 1.5rem;
}

.card__categoria {
  font-size: var(--font-size-meta);
  color: var(--color-gris-claro);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.card__titulo {
  font-size: var(--font-size-h3);
  color: var(--color-blanco);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.card__descripcion {
  font-size: var(--font-size-small);
  color: var(--color-gris-claro);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--neu-shadow-dark);
}

.card__precio {
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-heading);
  color: var(--color-naranja);
  text-shadow: var(--glow-texto-naranja);
}

/* ---- 4.5 Badges / Tags ---- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  font-family: var(--font-body);
  font-size: var(--font-size-meta);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--border-radius-sm);
  background: var(--neu-bg);
  color: var(--color-blanco);
  box-shadow: var(--neu-shadow-raised-sm);
}

.badge--naranja {
  background: var(--gradiente-cta-naranja);
  color: var(--color-blanco);
  box-shadow: var(--glow-naranja);
}

.badge--cyan {
  background: var(--gradiente-cta-cyan);
  color: var(--color-negro);
  box-shadow: var(--glow-cyan);
}

/* ---- 4.6 Inputs — Neumorphic inset ---- */
.input {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  color: var(--color-blanco);
  background: var(--neu-bg-inset);
  border: none;
  border-radius: var(--border-radius-md);
  box-shadow: var(--neu-shadow-inset);
  transition: all var(--transition-fast);
  outline: none;
}

.input::placeholder {
  color: var(--color-gris-claro);
}

.input:focus {
  box-shadow: 
    var(--neu-shadow-inset),
    var(--glow-cyan);
}

.input--error {
  box-shadow: 
    var(--neu-shadow-inset),
    0 0 10px rgba(255, 77, 77, 0.3);
}

.input__label {
  display: block;
  font-size: var(--font-size-meta);
  font-weight: var(--font-weight-medium);
  color: var(--color-gris-claro);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

/* Textarea */
.textarea {
  min-height: 120px;
  resize: vertical;
}

/* Select */
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23A0A0A0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1rem;
  padding-right: 3rem;
  cursor: pointer;
}

/* Checkbox */
.checkbox {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
}

.checkbox__input {
  appearance: none;
  width: 1.5rem;
  height: 1.5rem;
  background: var(--neu-bg-inset);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--neu-shadow-inset-sm);
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
}

.checkbox__input:checked {
  background: var(--gradiente-cta-cyan);
  box-shadow: var(--glow-cyan);
}

.checkbox__input:checked::after {
  content: '';
  position: absolute;
  left: 0.45rem;
  top: 0.2rem;
  width: 0.4rem;
  height: 0.7rem;
  border: solid var(--color-negro);
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
}

.checkbox__texto {
  font-size: var(--font-size-small);
  color: var(--color-gris-claro);
  transition: color var(--transition-fast);
}

.checkbox:hover .checkbox__texto {
  color: var(--color-cyan);
}

/* ---- 4.7 Formularios ---- */
.form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form__grupo {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form__fila {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (max-width: 480px) {
  .form__fila {
    grid-template-columns: 1fr;
  }
}

/* ---- 4.8 Iconos ---- */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-gris-claro);
  transition: all var(--transition-fast);
}

.icon:hover {
  color: var(--color-cyan);
}

/* Icon button con borde neon y fondo transparente */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.5rem;
  background: var(--neu-bg);
  border: 1px solid var(--color-gris-medio);
  border-radius: var(--border-radius-md);
  color: var(--color-gris-claro);
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--neu-shadow-raised-sm);
}

.icon-btn:hover {
  color: var(--color-cyan);
  border-color: var(--color-cyan);
  box-shadow: 
    var(--neu-shadow-raised-sm),
    var(--glow-cyan);
}

.icon-btn--naranja {
  color: var(--color-naranja);
}

.icon-btn--naranja:hover {
  color: var(--color-cyan);
  border-color: var(--color-naranja);
  box-shadow: 
    var(--neu-shadow-raised-sm),
    var(--glow-naranja);
}

/* Phosphor Icons */
.ph {
  font-family: 'Phosphor';
  font-weight: regular;
  font-size: inherit;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ---- 4.9 Tabs ---- */
.tabs {
  display: flex;
  margin-bottom: 1.5rem;
  padding: 0.25rem;
  background: var(--neu-bg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--neu-shadow-inset);
}

.tabs__btn {
  flex: 1;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gris-claro);
  background: transparent;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tabs__btn:hover {
  color: var(--color-blanco);
}

.tabs__btn--active {
  color: var(--color-cyan);
  background: var(--neu-bg);
  box-shadow: var(--neu-shadow-raised-sm);
  text-shadow: var(--glow-texto-cyan);
}

.tabs__contenido {
  display: none;
}

.tabs__contenido--active {
  display: block;
}

/* ---- 4.10 Breadcrumbs ---- */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-meta);
  color: var(--color-gris-claro);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
}

.breadcrumbs__link {
  color: var(--color-gris-claro);
  transition: color var(--transition-fast);
  padding: 0.25rem 0.5rem;
  border-radius: var(--border-radius-sm);
}

.breadcrumbs__link:hover {
  color: var(--color-cyan);
  text-shadow: var(--glow-texto-cyan);
  background: var(--neu-bg);
  box-shadow: var(--neu-shadow-inset-sm);
}

.breadcrumbs__separador {
  color: var(--neu-shadow-light);
}

/* ---- 4.11 Footer ---- */
.footer {
  background: var(--neu-bg);
  padding: 4rem var(--gutter) 2rem;
  border-top: 3px solid var(--color-naranja);
}

.footer__contenido {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

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

@media (min-width: 1024px) {
  .footer__contenido {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
  }
}

/* Brand */
.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-blanco);
  transition: color var(--transition-fast);
}

.footer__logo:hover {
  color: var(--color-cyan);
  text-shadow: var(--glow-texto-cyan);
}

.footer__tagline {
  font-size: var(--font-size-meta);
  color: var(--color-gris-claro);
  line-height: 1.5;
}

/* Navigación */
.footer__nav {
  display: flex;
  flex-direction: column;
}

.footer__menu,
.footer__menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer__menu li {
  margin: 0;
}

.footer__link {
  font-size: var(--font-size-meta);
  color: var(--color-gris-claro);
  transition: all var(--transition-fast);
  padding: 0.375rem 0;
  display: inline-block;
  border-left: 2px solid transparent;
  padding-left: 0.75rem;
}

.footer__link:hover {
  color: var(--color-cyan);
  border-left-color: var(--color-cyan);
  text-shadow: var(--glow-texto-cyan);
}

/* Contacto */
.footer__contacto {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__contacto-titulo {
  font-family: var(--font-heading);
  font-size: var(--font-size-h4);
  font-weight: 700;
  color: var(--color-blanco);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__contacto-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--font-size-meta);
  color: var(--color-gris-claro);
  transition: color var(--transition-fast);
}

.footer__contacto-item:hover {
  color: var(--color-cyan);
}

.footer__contacto-item i {
  font-size: 1.25rem;
  color: var(--color-naranja);
  flex-shrink: 0;
}

.footer__contacto-item a {
  color: var(--color-gris-claro);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__contacto-item a:hover {
  color: var(--color-cyan);
}

/* Redes sociales */
.footer__social {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--border-radius-md);
  background: var(--neu-bg);
  color: var(--color-gris-claro);
  font-size: 1.25rem;
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--color-naranja);
  color: var(--color-blanco);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
}

/* Legal y copyright */
.footer__legal {
  grid-column: 1 / -1;
  border-top: 1px solid var(--neu-shadow-light);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 640px) {
  .footer__legal {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__legal-menu {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.footer__legal-menu .footer__link {
  font-size: var(--font-size-small);
  padding-left: 0.5rem;
}

.footer__copyright {
  font-size: var(--font-size-small);
  color: var(--color-gris-claro);
  text-align: center;
}

/* ============================================
   5. PATTERNS
   ============================================ */

/* ---- Pattern: Page Header ---- */
.page-header {
  padding: 10rem var(--gutter) 4rem;
  background: var(--neu-bg);
  box-shadow: var(--neu-shadow-raised);
}

.page-header__titulo {
  font-size: var(--font-size-h1);
  color: var(--color-blanco);
  padding-left: 1.5rem;
  border-left: 4px solid var(--color-naranja);
  margin-bottom: 1rem;
}

.page-header__descripcion {
  color: var(--color-gris-claro);
  max-width: 600px;
  margin-left: 1.5rem;
  padding: 1rem 1.5rem;
  background: var(--neu-bg-inset);
  border-radius: var(--border-radius-md);
  box-shadow: var(--neu-shadow-inset);
}

/* ---- Pattern: Section Header ---- */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 1.5rem;
  background: var(--neu-bg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--neu-shadow-raised);
  margin-bottom: 2rem;
}

.section-header__titulo {
  font-size: var(--font-size-h2);
  color: var(--color-blanco);
}

.section-header__link {
  font-size: var(--font-size-meta);
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  background: var(--neu-bg);
  box-shadow: var(--neu-shadow-raised-sm);
}

.section-header__link:hover {
  text-shadow: var(--glow-texto-cyan);
  box-shadow: 
    var(--neu-shadow-raised-sm),
    var(--glow-cyan);
}

/* ---- Pattern: Service Card — Neumorphic ---- */
.service-card {
  background: var(--neu-bg);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  transition: all var(--transition-base);
  box-shadow: var(--neu-shadow-raised);
}

.service-card:hover {
  box-shadow: 
    var(--neu-shadow-raised),
    var(--glow-cyan);
  transform: translateY(-2px);
}

.service-card__icono {
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--neu-bg);
  border-radius: var(--border-radius-md);
  color: var(--color-cyan);
  font-size: 1.5rem;
  flex-shrink: 0;
  transition: all var(--transition-base);
  box-shadow: var(--neu-shadow-inset);
}

.service-card:hover .service-card__icono {
  box-shadow: 
    var(--neu-shadow-inset),
    var(--glow-cyan);
  color: var(--color-cyan-intenso);
}

.service-card__titulo {
  font-size: var(--font-size-meta);
  color: var(--color-blanco);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.service-card__descripcion {
  font-size: var(--font-size-small);
  color: var(--color-gris-claro);
  line-height: 1.5;
}

/* ============================================
   6. UTILIDADES
   ============================================ */

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

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

.util-mt-sm { margin-top: 0.5rem; }
.util-mt-md { margin-top: 1rem; }
.util-mt-lg { margin-top: 2rem; }

.util-mb-sm { margin-bottom: 0.5rem; }
.util-mb-md { margin-bottom: 1rem; }
.util-mb-lg { margin-bottom: 2rem; }

/* Text colors */
.util-text-white { color: var(--color-blanco); }
.util-text-gray { color: var(--color-gris-claro); }
.util-text-naranja { color: var(--color-naranja); }
.util-text-cyan { color: var(--color-cyan); }

/* ============================================
   7. ANIMACIONES
   ============================================ */

@keyframes glow-pulse {
  0%, 100% {
    box-shadow: var(--glow-cyan);
  }
  50% {
    box-shadow: var(--glow-cyan-intenso);
  }
}

@keyframes glow-naranja-pulse {
  0%, 100% {
    box-shadow: var(--glow-naranja);
  }
  50% {
    box-shadow: var(--glow-naranja-intenso);
  }
}

@keyframes texto-glow {
  0%, 100% {
    text-shadow: var(--glow-texto-cyan);
  }
  50% {
    text-shadow: var(--glow-cyan-intenso);
  }
}

.anim-glow {
  animation: glow-pulse 2s ease-in-out infinite;
}

.anim-glow-naranja {
  animation: glow-naranja-pulse 2s ease-in-out infinite;
}

.anim-texto-glow {
  animation: texto-glow 2s ease-in-out infinite;
}

/* ============================================
   8. EXCEPCIONES — CLARO
   ============================================ */

/* Blog y contenido informacional usa fondo claro para legibilidad */
.seccion--clara {
  background-color: #f0f0f0;
  color: var(--color-negro);
}

.seccion--clara .card {
  background: white;
  box-shadow: 
    8px 8px 16px #d1d1d1,
    -8px -8px 16px #ffffff;
}

.seccion--clara .input {
  background: white;
  box-shadow: 
    inset 4px 4px 8px #d1d1d1,
    inset -4px -4px 8px #ffffff;
}

.seccion--clara .input:focus {
  box-shadow: 
    inset 4px 4px 8px #d1d1d1,
    inset -4px -4px 8px #ffffff,
    0 0 15px rgba(0, 229, 255, 0.3);
}