/* =================================================
   Nutrición Comunitaria - Main Stylesheet
   © 2026 - Alimentación Saludable España
   ================================================= */

/* === IMPORTS === */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=Lato:wght@300;400;700&family=Roboto+Mono:wght@400;500&display=swap');

/* === ROOT VARIABLES === */
:root {
  /* Color Palette */
  --verde-vegetal: #8BC34A;
  --naranja-fruta: #FF9800;
  --rojo-tomate: #F44336;
  --amarillo-cereal: #FFC107;
  --blanco: #F5F5F5;
  --blanco-puro: #FFFFFF;
  --gris-claro: #E0E0E0;
  --gris-medio: #9E9E9E;
  --gris-oscuro: #424242;
  --negro: #212121;
  
  /* Typography */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Lato', sans-serif;
  --font-mono: 'Roboto Mono', monospace;
  
  /* Sizing */
  --title-size: 43px;
  --body-size: 18px;
  --caption-size: 14px;
  --line-height: 1.82;
  
  /* Layout */
  --hero-height: 90vh;
  --wide-width: 1160px;
  --medium-width: 880px;
  --compact-width: 680px;
  
  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 64px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: var(--body-size);
  line-height: var(--line-height);
  color: var(--negro);
  background-color: var(--blanco);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--title-size);
  font-weight: 800;
}

h2 {
  font-size: 36px;
}

h3 {
  font-size: 28px;
}

h4 {
  font-size: 22px;
}

p {
  margin-bottom: var(--spacing-md);
}

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

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

ul, ol {
  list-style-position: inside;
  margin-bottom: var(--spacing-md);
}

/* === UTILITY CLASSES === */
.container {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-medium {
  max-width: var(--medium-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-compact {
  max-width: var(--compact-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.section-light {
  background-color: var(--blanco-puro);
}

.section-dark {
  background-color: var(--blanco);
}

.gradient-bg {
  background: linear-gradient(135deg, var(--verde-vegetal) 0%, var(--naranja-fruta) 100%);
}

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

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

/* === HEADER & NAVIGATION === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--blanco-puro);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: var(--transition-normal);
}

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

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  display: flex;
  align-items: center;
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--verde-vegetal);
}

.logo-icon {
  font-size: 32px;
  margin-right: var(--spacing-xs);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
}

.nav-menu a {
  font-weight: 500;
  color: var(--gris-oscuro);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 8px;
  transition: var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--verde-vegetal);
  background-color: rgba(139, 195, 74, 0.1);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 28px;
  color: var(--verde-vegetal);
  cursor: pointer;
}

/* === HERO SECTION === */
.hero {
  min-height: var(--hero-height);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--verde-vegetal) 0%, var(--naranja-fruta) 100%);
  color: var(--blanco-puro);
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  margin-top: 70px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--medium-width);
}

.hero h1 {
  font-size: 56px;
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero p {
  font-size: 22px;
  margin-bottom: var(--spacing-lg);
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  border-radius: 50px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--blanco-puro);
  color: var(--verde-vegetal);
  border-color: var(--blanco-puro);
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--blanco-puro);
  border-color: var(--blanco-puro);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--blanco-puro);
  color: var(--verde-vegetal);
}

.btn-verde {
  background-color: var(--verde-vegetal);
  color: var(--blanco-puro);
  border-color: var(--verde-vegetal);
}

.btn-verde:hover {
  background-color: #7CB342;
  border-color: #7CB342;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-naranja {
  background-color: var(--naranja-fruta);
  color: var(--blanco-puro);
  border-color: var(--naranja-fruta);
}

.btn-naranja:hover {
  background-color: #FB8C00;
  border-color: #FB8C00;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* === STATS SECTION === */
.stats {
  background-color: var(--blanco-puro);
  padding: var(--spacing-xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.stat-card {
  text-align: center;
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, var(--verde-vegetal) 0%, var(--naranja-fruta) 100%);
  border-radius: 16px;
  color: var(--blanco-puro);
  transition: var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.stat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 48px;
  font-weight: 800;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  font-size: 18px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* === PROGRAM GRID === */
.program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.program-card {
  background-color: var(--blanco-puro);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.program-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.program-image {
  width: 100%;
  height: 220px;
  background: linear-gradient(135deg, var(--verde-vegetal) 0%, var(--naranja-fruta) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
  color: var(--blanco-puro);
}

.program-content {
  padding: var(--spacing-lg);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.program-tag {
  display: inline-block;
  padding: 6px 16px;
  background-color: var(--amarillo-cereal);
  color: var(--negro);
  font-family: var(--font-mono);
  font-size: var(--caption-size);
  font-weight: 500;
  border-radius: 20px;
  margin-bottom: var(--spacing-sm);
  align-self: flex-start;
}

.program-card h3 {
  color: var(--verde-vegetal);
  margin-bottom: var(--spacing-sm);
}

.program-card p {
  color: var(--gris-oscuro);
  flex-grow: 1;
}

.program-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: var(--caption-size);
  color: var(--gris-medio);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--gris-claro);
}

/* === FEATURE BOXES === */
.feature-boxes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.feature-box {
  background-color: var(--blanco-puro);
  padding: var(--spacing-lg);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

.feature-box:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.feature-icon.verde { color: var(--verde-vegetal); }
.feature-icon.naranja { color: var(--naranja-fruta); }
.feature-icon.rojo { color: var(--rojo-tomate); }
.feature-icon.amarillo { color: var(--amarillo-cereal); }

.feature-box h3 {
  color: var(--verde-vegetal);
}

/* === FORMS === */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--caption-size);
  font-weight: 500;
  color: var(--gris-oscuro);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 16px;
  border: 2px solid var(--gris-claro);
  border-radius: 8px;
  background-color: var(--blanco-puro);
  transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--verde-vegetal);
  box-shadow: 0 0 0 3px rgba(139, 195, 74, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.form-checkbox input[type="checkbox"] {
  margin-top: 4px;
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.form-checkbox label {
  font-size: 14px;
  color: var(--gris-oscuro);
  cursor: pointer;
}

/* === FOOTER === */
.footer {
  background-color: var(--gris-oscuro);
  color: var(--blanco);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
  color: var(--verde-vegetal);
  margin-bottom: var(--spacing-md);
}

.footer-section p,
.footer-section a {
  color: var(--blanco);
  opacity: 0.9;
  line-height: 1.8;
}

.footer-section a:hover {
  color: var(--naranja-fruta);
  opacity: 1;
}

.footer-links {
  list-style: none;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--caption-size);
  opacity: 0.8;
}

/* === RESPONSIVE === */
@media (max-width: 968px) {
  :root {
    --title-size: 36px;
    --body-size: 16px;
  }
  
  .hero h1 {
    font-size: 42px;
  }
  
  .hero p {
    font-size: 18px;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--blanco-puro);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .program-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
  
  .hero-buttons {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .program-grid,
  .feature-boxes {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* === COOKIE BANNER === */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(33, 33, 33, 0.98);
  color: var(--blanco-puro);
  padding: var(--spacing-lg) var(--spacing-md);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
  z-index: 10000;
  transform: translateY(100%);
  transition: transform 0.4s ease-out;
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-banner-content {
  max-width: var(--wide-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.cookie-banner-text {
  flex: 1;
  min-width: 300px;
}

.cookie-banner-text h4 {
  font-size: 18px;
  margin-bottom: var(--spacing-xs);
  color: var(--blanco-puro);
}

.cookie-banner-text p {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 0;
  opacity: 0.9;
}

.cookie-banner-text a {
  color: var(--verde-vegetal);
  text-decoration: underline;
}

.cookie-banner-text a:hover {
  color: var(--naranja-fruta);
}

.cookie-banner-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.cookie-btn {
  padding: 12px 28px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition-normal);
  white-space: nowrap;
}

.cookie-btn-accept {
  background-color: var(--verde-vegetal);
  color: var(--blanco-puro);
  border-color: var(--verde-vegetal);
}

.cookie-btn-accept:hover {
  background-color: #7CB342;
  transform: translateY(-2px);
}

.cookie-btn-decline {
  background-color: transparent;
  color: var(--blanco-puro);
  border-color: var(--blanco-puro);
}

.cookie-btn-decline:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.cookie-btn-settings {
  background-color: transparent;
  color: var(--gris-claro);
  border: none;
  padding: 12px 20px;
  text-decoration: underline;
}

.cookie-btn-settings:hover {
  color: var(--blanco-puro);
}

@media (max-width: 768px) {
  .cookie-banner {
    padding: var(--spacing-md);
  }
  
  .cookie-banner-content {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  
  .cookie-banner-buttons {
    justify-content: center;
  }
  
  .cookie-btn {
    flex: 1;
    min-width: 120px;
  }
}