/* ===== VARIABLES Y RESET ===== */
:root {
  --color-primary: #8b5cf6;
  --color-secondary: #ec4899;
  --color-dark: #1e293b;
  --color-light: #f8fafc;
  --color-accent: #f59e0b;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-dark);
  background-color: #ffffff;
}

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

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

a:hover {
  color: var(--color-secondary);
}

/* ===== LAYOUT ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: var(--color-dark);
}

.section-intro {
  text-align: center;
  font-size: 1.2rem;
  color: #64748b;
  max-width: 700px;
  margin: 0 auto 50px;
}

/* ===== HEADER ===== */
.site-header {
  background: linear-gradient(135deg, var(--color-dark) 0%, #334155 100%);
  color: white;
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

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

.logo a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}

.logo i {
  color: var(--color-accent);
}

.main-nav {
  display: flex;
  gap: 30px;
}

.main-nav a {
  color: rgba(255,255,255,0.9);
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover {
  color: white;
  border-bottom-color: var(--color-accent);
}

.header-cta {
  white-space: nowrap;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

/* ===== HERO SECTIONS ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.05)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,149.3C960,160,1056,160,1152,138.7C1248,117,1344,75,1392,53.3L1440,32L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
  background-size: cover;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  margin-bottom: 20px;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 15px;
  opacity: 0.95;
}

.hero-description {
  font-size: 1.2rem;
  margin-bottom: 30px;
  opacity: 0.9;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.hero-image {
  position: absolute;
  right: 100px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.2;
}

.hero-small {
  padding: 60px 0;
}

.hero-small h1 {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: #7c3aed;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: white;
  color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-light);
  transform: translateY(-2px);
}

.btn-light {
  background: white;
  color: var(--color-dark);
}

.btn-outline-light {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-outline-light:hover {
  background: white;
  color: var(--color-primary);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.9rem;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* ===== CARDS ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.card {
  background: white;
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  color: var(--color-primary);
  margin-bottom: 15px;
}

.card h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--color-dark);
}

/* ===== FEATURES ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-top: 50px;
}

.feature {
  text-align: center;
}

.feature i {
  color: var(--color-primary);
  margin-bottom: 15px;
}

.feature h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

/* ===== STEPS ===== */
.steps {
  display: flex;
  justify-content: space-around;
  gap: 40px;
  margin-top: 50px;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 250px;
  text-align: center;
}

.step-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-accent);
  color: white;
  font-size: 2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.step h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: white;
}

.step p {
  color: rgba(255,255,255,0.9);
}

/* ===== BOOK SHOWCASE ===== */
.book-showcase {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: center;
}

.book-showcase-image i {
  color: var(--color-primary);
}

.book-showcase-content h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.book-showcase-content .lead {
  font-size: 1.2rem;
  color: #64748b;
  margin-bottom: 20px;
}

.check-list {
  list-style: none;
  margin: 20px 0;
}

.check-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.check-list i {
  color: var(--color-success);
}

/* ===== RESOURCES ===== */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.resource-card {
  background: white;
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.resource-card i {
  color: var(--color-primary);
  margin-bottom: 15px;
}

.resource-card h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

/* ===== CTA SECTION ===== */
.cta-section {
  background: linear-gradient(135deg, var(--color-dark) 0%, #334155 100%);
  text-align: center;
}

.cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 30px;
}

/* ===== BACKGROUNDS ===== */
.bg-light {
  background-color: var(--color-light);
}

.bg-dark {
  background: linear-gradient(135deg, var(--color-dark) 0%, #334155 100%);
  color: white;
}

.bg-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
}

/* ===== UTILITY CLASSES ===== */
.text-center {
  text-align: center;
}

.text-light {
  color: rgba(255,255,255,0.95);
}

.text-small {
  font-size: 0.9rem;
  color: #64748b;
}

.text-success {
  color: var(--color-success);
}

.text-danger {
  color: var(--color-danger);
}

.lead {
  font-size: 1.2rem;
  font-weight: 400;
}

.mt-4 {
  margin-top: 2rem;
}

/* ===== BOOK DETAIL ===== */
.book-detail {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 50px;
}

.book-detail-image {
  text-align: center;
}

.book-detail-image i {
  color: var(--color-primary);
}

.author {
  font-size: 1.2rem;
  color: #64748b;
  margin-top: 15px;
}

/* ===== CHAPTERS ===== */
.book-chapters {
  display: grid;
  gap: 20px;
}

.chapter {
  background: white;
  padding: 25px;
  border-radius: var(--radius);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.chapter h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.chapter i {
  color: var(--color-primary);
}

/* ===== TWO COLUMNS ===== */
.two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 30px;
}

.column h3 {
  margin-bottom: 15px;
}

.column ul {
  list-style: none;
}

.column ul li {
  padding: 8px 0;
  padding-left: 25px;
  position: relative;
}

.column ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  font-size: 1.5rem;
}

/* ===== METHOD STAGES ===== */
.intro-box {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  padding: 40px;
  border-radius: var(--radius);
  text-align: center;
  margin-bottom: 50px;
}

.intro-box h2 {
  font-size: 2rem;
  margin-bottom: 15px;
}

.method-stage {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 30px;
  margin-bottom: 40px;
  padding: 30px;
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.stage-number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  font-size: 2.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stage-content h3 {
  font-size: 1.8rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.stage-subtitle {
  font-size: 1.2rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 15px;
}

.stage-tools {
  margin-top: 15px;
  padding: 15px;
  background: var(--color-light);
  border-radius: 8px;
  font-size: 0.95rem;
}

/* ===== PRODUCT CONNECTION ===== */
.product-connection {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.product-item {
  background: white;
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.product-item i {
  color: var(--color-primary);
  margin-bottom: 15px;
}

/* ===== RESOURCES LIST ===== */
.resources-list {
  display: grid;
  gap: 40px;
  margin-top: 40px;
}

.resource-detail-card {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 30px;
  background: white;
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.resource-icon {
  text-align: center;
  color: var(--color-primary);
}

.resource-type {
  margin-bottom: 15px;
}

.badge {
  display: inline-block;
  padding: 5px 12px;
  background: var(--color-primary);
  color: white;
  border-radius: 20px;
  font-size: 0.85rem;
  margin-right: 8px;
}

.subscribe-form {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.subscribe-form input {
  flex: 1;
  padding: 10px 15px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  font-size: 1rem;
}

.subscribe-form input:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 50px;
}

.contact-method {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
}

.contact-method i {
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 600;
  color: var(--color-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 15px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-main);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* ===== FAQ ===== */
.faq-list {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}

.faq-item {
  background: white;
  padding: 25px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.faq-item h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-primary);
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-dark);
  color: white;
  padding: 60px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-column h3,
.footer-column h4 {
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-column h3 i {
  color: var(--color-accent);
}

.footer-column ul {
  list-style: none;
}

.footer-column ul li {
  margin-bottom: 10px;
}

.footer-column a {
  color: rgba(255,255,255,0.8);
}

.footer-column a:hover {
  color: white;
}

.social-links {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--color-primary);
  transform: translateY(-3px);
}

.footer-newsletter {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.footer-newsletter input {
  flex: 1;
  padding: 10px 15px;
  border: none;
  border-radius: 8px;
  background: rgba(255,255,255,0.1);
  color: white;
}

.footer-newsletter input::placeholder {
  color: rgba(255,255,255,0.6);
}

.footer-newsletter button {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  background: var(--color-primary);
  color: white;
  cursor: pointer;
  transition: var(--transition);
}

.footer-newsletter button:hover {
  background: var(--color-secondary);
}

.footer-legal {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.footer-legal a {
  font-size: 0.9rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 30px;
  text-align: center;
  color: rgba(255,255,255,0.7);
}

.footer-disclaimer {
  margin-top: 10px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ===== FLOATING CTA ===== */
.floating-cta {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  padding: 15px 25px;
  border-radius: 50px;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  z-index: 999;
  transition: var(--transition);
}

.floating-cta:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .main-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.4rem;
  }

  .hero-image {
    display: none;
  }

  .book-showcase,
  .book-detail,
  .contact-grid,
  .two-columns {
    grid-template-columns: 1fr;
  }

  .method-stage {
    grid-template-columns: 1fr;
  }

  .stage-number {
    margin: 0 auto 20px;
  }

  .resource-detail-card {
    grid-template-columns: 1fr;
  }

  .subscribe-form {
    flex-direction: column;
  }

  .floating-cta span {
    display: none;
  }

  .floating-cta {
    width: 60px;
    height: 60px;
    padding: 0;
    border-radius: 50%;
    justify-content: center;
  }
}

/* ===== BLOG STYLES ===== */

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.blog-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.blog-card-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.blog-card:hover .blog-card-image img {
  transform: scale(1.05);
}

.blog-card-content {
  padding: 25px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-meta {
  display: flex;
  gap: 15px;
  font-size: 0.9rem;
  color: #64748b;
  margin-bottom: 12px;
}

.blog-card-meta i {
  margin-right: 5px;
}

.blog-date {
  display: flex;
  align-items: center;
}

.blog-card-title {
  font-size: 1.4rem;
  margin-bottom: 12px;
  line-height: 1.3;
}

.blog-card-title a {
  color: var(--color-dark);
  text-decoration: none;
  transition: var(--transition);
}

.blog-card-title a:hover {
  color: var(--color-primary);
}

.blog-card-excerpt {
  color: #64748b;
  line-height: 1.6;
  margin-bottom: 15px;
  flex: 1;
}

.blog-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 15px;
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-light);
  color: var(--color-primary);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-top: 50px;
}

.pagination-info {
  font-size: 1rem;
  color: #64748b;
}

/* Blog Post Individual */
.blog-post {
  background: white;
}

.blog-post-header {
  padding: 60px 0 30px;
  background: linear-gradient(135deg, var(--color-light) 0%, white 100%);
}

.blog-post-meta {
  display: flex;
  gap: 20px;
  font-size: 0.95rem;
  color: #64748b;
  margin-bottom: 20px;
}

.blog-post-meta i {
  margin-right: 6px;
  color: var(--color-primary);
}

.blog-post-title {
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--color-dark);
}

.blog-post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.blog-post-featured-image {
  width: 100%;
  max-height: 500px;
  overflow: hidden;
  margin-bottom: 50px;
}

.blog-post-featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-post-content {
  padding: 40px 0;
}

.blog-post-body {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-dark);
}

.blog-post-body p {
  margin-bottom: 20px;
}

.blog-post-body h3 {
  font-size: 1.6rem;
  font-weight: 600;
  margin: 30px 0 15px;
  color: var(--color-primary);
}

.blog-post-body strong {
  color: var(--color-dark);
  font-weight: 600;
}

.blog-post-footer {
  max-width: 800px;
  margin: 50px auto 0;
  padding-top: 40px;
  border-top: 2px solid var(--color-light);
}

.blog-post-share {
  margin-bottom: 40px;
}

.blog-post-share h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
}

.share-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.blog-post-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  padding: 40px;
  border-radius: var(--radius);
  text-align: center;
}

.blog-post-cta h3 {
  font-size: 1.8rem;
  margin-bottom: 10px;
  color: white;
}

.blog-post-cta p {
  font-size: 1.1rem;
  margin-bottom: 20px;
  opacity: 0.9;
}

/* Subscribe Form Inline */
.subscribe-form-inline {
  display: flex;
  gap: 10px;
  max-width: 600px;
  margin: 30px auto 0;
  flex-wrap: wrap;
  justify-content: center;
}

.subscribe-form-inline input {
  flex: 1;
  min-width: 200px;
  padding: 12px 20px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  font-size: 1rem;
}

.subscribe-form-inline input:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* Blog Responsive */
@media (max-width: 768px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .blog-post-title {
    font-size: 2rem;
  }

  .blog-post-body {
    font-size: 1rem;
  }

  .subscribe-form-inline {
    flex-direction: column;
  }

  .subscribe-form-inline input {
    min-width: 100%;
  }

  .pagination {
    flex-direction: column;
    gap: 15px;
  }
}