* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: linear-gradient(45deg, #ffffff 0%, #c3f0c3 100%);
  color: #1a1a1a; /* texto oscuro para legibilidad */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: 'Inter', sans-serif;
}

/* Contenedor general */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

/* Header y navegación */
.header {
  background: #ffffff;
  color: #2ecc71;
  padding: 1rem 0;
  box-shadow: 0 2px 6px rgba(46,204,113, 0.15);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 700;
  font-size: 1.8rem;
  color: #27ae60;
}

.nav-menu {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-menu li a {
  text-decoration: none;
  color: #2ecc71;
  font-weight: 600;
  transition: color 0.3s ease;
}

.nav-menu li a:hover {
  color: #27ae60;
}

/* Hero */
.hero {
  padding: 4rem 0 3rem;
  text-align: center;
  color: #2ecc71;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.hero p {
  font-size: 1.2rem;
  opacity: 0.85;
}

/* Main content - Blog y sidebar */
.main-content {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

/* Blog list */
.blog-list {
  flex: 3;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.post-card {
  background: #f9fff9;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 3px 8px rgba(46,204,113,0.15);
  transition: box-shadow 0.3s ease;
  cursor: pointer;
}

.post-card:hover {
  box-shadow: 0 8px 20px rgba(46,204,113,0.25);
}

.post-image {
  width: 100%;
  height: auto;
  display: block;
}

.post-content {
  padding: 1rem 1.2rem;
}

.post-title {
  font-size: 1.5rem;
  color: #27ae60;
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}

.post-title:hover {
  color: #2ecc71;
  text-decoration: underline;
}

.post-excerpt {
  font-size: 1rem;
  color: #555;
  line-height: 1.4;
}

/* Sidebar */
.sidebar {
  flex: 1;
  background: #f1f9f1;
  border-radius: 8px;
  padding: 1.5rem 1.2rem;
  color: #2b5d2b;
  height: fit-content;
  box-shadow: 0 3px 10px rgba(46,204,113,0.2);
}

.categories h4,
.popular-posts h4 {
  margin-bottom: 1rem;
  color: #2ecc71;
  font-weight: 700;
  border-bottom: 2px solid #27ae60;
  padding-bottom: 0.3rem;
}

.categories ul,
.popular-posts ul {
  list-style: none;
  padding-left: 0;
}

.categories li,
.popular-posts li {
  margin-bottom: 0.7rem;
}

.categories li a,
.popular-posts li a {
  color: #2b5d2b;
  text-decoration: none;
  transition: color 0.3s ease;
}

.categories li a:hover,
.popular-posts li a:hover {
  color: #27ae60;
  text-decoration: underline;
}

/* Footer */
.footer {
  background: #e6f2e6;
  color: #2b5d2b;
  padding: 2rem 0 1rem;
  text-align: center;
  border-top: 1px solid #c6e2c6;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
  padding-left: 0;
}

.footer-nav a {
  color: #2b5d2b;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.footer-nav a:hover {
  color: #27ae60;
  text-decoration: underline;
}

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

.footer-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #2b5d2b;
}

.footer-form input[type="email"] {
  padding: 0.6rem 1rem;
  border-radius: 20px;
  border: 1px solid #a3dca3;
  margin-right: 0.5rem;
  font-size: 1rem;
  outline: none;
  width: 220px;
  max-width: 90vw;
  background: #e6f2e6;
  color: #2b5d2b;
}

.footer-form input::placeholder {
  color: #6ca96c;
}

.footer-form button {
  background: #2ecc71;
  border: none;
  color: #fff;
  padding: 0.6rem 1.5rem;
  font-weight: 700;
  border-radius: 20px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.footer-form button:hover {
  background: #27ae60;
}

.article {
  background-color: #f0fff4;       /* Verde muy claro, fondo suave */
  border-left: 5px solid #27ae60; /* Barra vertical verde más oscuro */
  padding: 1.2rem 1.5rem;
  margin-bottom: 1.8rem;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(39, 174, 96, 0.15);
  transition: box-shadow 0.3s ease;
}

.article:hover {
  box-shadow: 0 8px 20px rgba(39, 174, 96, 0.3);
}

.article h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #2c6b2c; /* Verde oscuro para título */
  margin-bottom: 0.4rem;
}

.article small {
  display: block;
  font-size: 0.85rem;
  color: #5a7d5a; /* Verde grisáceo para la fecha */
  margin-bottom: 1rem;
  font-style: italic;
}

.article p {
  font-size: 1rem;
  line-height: 1.5;
  color: #3a3a3a; /* Texto neutro oscuro */
}


/* Copyright */
.footer p {
  font-size: 0.9rem;
  opacity: 0.7;
}

/* Responsive */
@media (max-width: 900px) {
  .main-content {
    flex-direction: column;
  }
  .sidebar {
    order: -1;
    margin-bottom: 2rem;
  }
}

@media (max-width: 450px) {
  .nav-menu {
    flex-direction: column;
    gap: 0.8rem;
  }
  .nav-menu li a {
    font-size: 1rem;
  }
  .footer-form input[type="email"] {
    width: 100%;
    margin-bottom: 0.7rem;
  }
  .footer-form button {
    width: 100%;
  }
}

.about {
  background-color: #f9f9f9;
  padding: 4rem 2rem;
  margin-top: 2rem;
  border-top: 2px solid #ddd;
}

.about-container {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-title {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: #222;
}

.about-text {
  font-size: 1.1rem;
  line-height: 1.7;
  color: #444;
  margin-bottom: 1.2rem;
}

.about-text strong {
  color: #000;
}

.about-text em {
  color: #555;
  font-style: italic;
}

.navbar {
  background-color: #ffffff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  padding: 0.8rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 999;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1024px;
  margin: 0 auto;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #111;
  text-decoration: none;
}

.nav-toggle {
  display: none;
  font-size: 1.6rem;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.nav-link {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: #0a8f5e;
}
form {
  max-width: 500px;
  margin: 40px auto;
  padding: 20px;
  background: #f9fff9;
  border: 1px solid #c6ecc6;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0, 100, 0, 0.1);
  font-family: 'Segoe UI', sans-serif;
}

form input[type="text"],
form input[type="email"],
form textarea {
  width: 100%;
  padding: 12px;
  margin-bottom: 16px;
  border: 1px solid #bde6bd;
  border-radius: 8px;
  background: #ffffff;
  font-size: 16px;
  box-sizing: border-box;
  resize: vertical;
}

form input[type="text"]:focus,
form input[type="email"]:focus,
form textarea:focus {
  border-color: #66cc66;
  outline: none;
}

form button {
  background-color: #66cc66;
  color: white;
  border: none;
  padding: 12px 20px;
  font-size: 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  width: 100%;
}

form button:hover {
  background-color: #55bb55;
}


/* Responsive */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    background-color: #fff;
    position: absolute;
    top: 64px;
    right: 0;
    width: 200px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    padding: 1rem;
    gap: 1rem;
  }

  .nav-menu.active {
    display: flex;
  }
}