/* 
  styles.css – Estilos principales de EcoLoop Chile
  -------------------------------------------------
  - Diseño mobile-first
  - Uso de variables CSS para colores y tipografías
  - Sin frameworks externos (solo CSS puro)
*/

/* Variables de identidad visual (pueden modificarse fácilmente) */
:root {
  --color-primary: #00aa00;      /* Verde principal (placeholder) */
  --color-secondary: #004400;    /* Verde oscuro (placeholder) */
  --color-accent: #ffd700;       /* Amarillo/dorado (placeholder) */
  --color-bg: #f5f7f5;
  --color-bg-alt: #ffffff;
  --color-text: #1f2933;
  --color-text-muted: #6b7280;
  --color-border: #e0e7ec;
  --color-error: #b91c1c;

  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.06);
  --radius-lg: 1.25rem;
  --radius-md: 0.75rem;
  --radius-sm: 0.5rem;

  --font-heading: 'NombreFuenteTitulos', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'NombreFuenteTexto', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --header-height: 70px;
}

/* Reset básico y tipografía */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

p {
  line-height: 1.6;
}

/* Contenedor general */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Secciones */
.section {
  padding: 4rem 0;
  scroll-margin-top: var(--header-height);
}

.section-alt {
  background-color: var(--color-bg-alt);
}

/* Header fijo */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: #ffffff;
  border-bottom: 1px solid rgba(15, 23, 42, 0.05);
  z-index: 1000;
}

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

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  color: var(--color-secondary);
}

.logo img {
  height: 36px;
  width: auto;
}

.logo-text {
  font-size: 1rem;
}

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

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.main-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, var(--color-primary), var(--color-accent));
  transition: width 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus {
  color: var(--color-text);
}

.main-nav a:hover::after,
.main-nav a:focus::after {
  width: 100%;
}

/* Botón de menú (mobile) */
.nav-toggle {
  background: none;
  border: none;
  padding: 0.25rem;
  display: inline-flex;
  flex-direction: column;
  gap: 0.25rem;
  cursor: pointer;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-secondary);
}

/* Hero */
.hero {
  padding-top: calc(4rem + var(--header-height));
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  line-height: 1.3;
  margin-bottom: 1rem;
}

.hero-content p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.hero-subnote {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.hero-image-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.1s ease, color 0.1s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #ffffff;
  box-shadow: 0 12px 25px rgba(0, 160, 0, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(0, 160, 0, 0.35);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--color-secondary);
  border-color: rgba(15, 23, 42, 0.1);
}

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

/* Encabezados de secciones */
.section-header {
  max-width: 680px;
  margin: 0 auto 2.5rem auto;
  text-align: center;
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--color-text-muted);
  margin: 0;
}

/* Cards genéricas */
.card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.1);
}

/* Grid de beneficios */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.card-icon {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 170, 0, 0.1);
  color: var(--color-secondary);
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

/* Timeline de proceso */
.process-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.process-step {
  position: relative;
  padding-left: 2.5rem;
}

.process-step h3 {
  margin: 0 0 0.25rem 0;
  font-size: 1rem;
  font-family: var(--font-heading);
}

.process-step p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.step-number {
  position: absolute;
  top: 0;
  left: 0;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Subproductos */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.product-card img {
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.product-body h3 {
  margin: 0 0 0.4rem 0;
  font-size: 1rem;
}

.product-body p {
  margin: 0.2rem 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.product-tags {
  margin-top: 0.5rem;
}

.product-tags span {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background-color: #f1f5f9;
  color: var(--color-secondary);
  margin-right: 0.35rem;
}

/* Tecnología */
.technology-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: flex-start;
}

.technology-text h3 {
  margin-top: 0;
  font-family: var(--font-heading);
}

.technology-text ul {
  margin-top: 0.75rem;
  padding-left: 1.1rem;
}

.technology-text li {
  margin-bottom: 0.35rem;
  color: var(--color-text-muted);
  list-style: disc;
}

.technology-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.tech-image {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.tech-image img {
  width: 100%;
  height: auto;
}

.tech-image figcaption {
  padding: 0.5rem 0.9rem 0.75rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Timeline historia */
.timeline {
  border-left: 2px solid rgba(148, 163, 184, 0.4);
  margin: 2rem 0;
  padding-left: 1.25rem;
}

.timeline-item {
  position: relative;
  margin-bottom: 1.75rem;
}

.timeline-year {
  position: absolute;
  left: -4.15rem;
  top: 0;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-secondary);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.55rem;
  top: 0.25rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(0, 170, 0, 0.18);
}

.timeline-content h3 {
  margin: 0 0 0.25rem 0;
  font-size: 1rem;
}

.timeline-content p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.story-note {
  text-align: center;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* Impacto */
.impact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.impact-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-soft);
}

.impact-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 0.25rem;
}

.impact-label {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.impact-label span {
  display: block;
  font-size: 0.8rem;
}

.impact-note {
  margin-top: 1.5rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* Inversionistas */
.investor-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: flex-start;
}

.investor-text h3 {
  font-family: var(--font-heading);
  margin-top: 0;
}

.investor-text ul {
  padding-left: 1.1rem;
}

.investor-text li {
  list-style: disc;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* Formularios */
.form-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.form-card h3 {
  margin-top: 0;
  font-family: var(--font-heading);
}

.form-field {
  margin-bottom: 1rem;
}

.form-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: 0.9rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  background-color: #f9fafb;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 170, 0, 0.16);
  background-color: #ffffff;
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.75rem;
}

/* Campo con error (para validación JS) */
.field-error {
  border-color: var(--color-error) !important;
  box-shadow: 0 0 0 2px rgba(185, 28, 28, 0.12);
}

/* Contacto + mapa */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.contact-details p {
  margin: 0.1rem 0;
  font-size: 0.9rem;
}

.contact-map h3 {
  font-family: var(--font-heading);
  margin-top: 0;
}

.map-wrapper {
  width: 100%;
  min-height: 260px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.18);
}

.map-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
}

/* Footer */
.site-footer {
  background-color: #020617;
  color: #e5e7eb;
  padding-top: 2.5rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
}

.footer-brand {
  font-family: var(--font-heading);
  font-weight: 600;
}

.footer-col h3 {
  font-size: 0.95rem;
  margin: 0 0 0.5rem 0;
}

.footer-links li {
  margin-bottom: 0.25rem;
}

.footer-links a {
  font-size: 0.85rem;
  color: #cbd5f5;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  margin-top: 1rem;
}

.footer-bottom-inner {
  padding: 0.75rem 1.5rem;
  font-size: 0.8rem;
  text-align: center;
}

/* Breakpoints */
@media (min-width: 640px) {
  .hero-content h1 {
    font-size: 2rem;
  }

  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .products-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .technology-gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .impact-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .investor-layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }

  .contact-layout {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }

  .footer-inner {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .hero-inner {
    flex-direction: row;
    align-items: center;
  }

  .hero-content {
    flex: 1.2;
  }

  .hero-image-wrapper {
    flex: 1;
  }

  .timeline {
    margin-left: 4rem;
  }

  .timeline-year {
    font-size: 1rem;
  }
}

@media (min-width: 900px) {
  .main-nav {
    display: block;
  }

  .nav-toggle {
    display: none;
  }

  .hero-content h1 {
    font-size: 2.3rem;
  }
}