/* 
 * Lex Corporativo MX - Estilos Principales
 * Paleta: Azul oscuro legal (#0C2340), Dorado institucional (#B8860B), Blanco (#FFFFFF), Gris cálido (#5A5A5A)
 */

:root {
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8F9FA;
  --bg-dark: #0C2340;
  --bg-card: #FFFFFF;
  --border-color: #E2E8F0;
  --accent-gold: #B8860B;
  --accent-gold-hover: #9A7109;
  --text-main: #1A202C;
  --text-muted: #4A5568;
  --text-dim: #718096;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 10px 30px -10px rgba(12, 35, 64, 0.08);
}

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

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--bg-dark);
  font-weight: 700;
}

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

a:hover {
  color: var(--accent-gold);
}

ul {
  list-style: none;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent-gold);
  color: #FFF;
  padding: 8px;
  z-index: 10001;
  transition: top 0.3s;
}
.skip-link:focus {
  top: 0;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--bg-dark);
}

.logo-brand svg {
  width: 38px;
  height: 38px;
}

.logo-brand span {
  color: var(--accent-gold);
}

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

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--accent-gold);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: var(--bg-dark);
  color: #FFFFFF;
}

.btn-primary:hover {
  background: #153259;
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(12, 35, 64, 0.2);
}

.btn-gold {
  background: var(--accent-gold);
  color: #FFFFFF;
}

.btn-gold:hover {
  background: var(--accent-gold-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(184, 134, 11, 0.3);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--bg-dark);
  color: var(--bg-dark);
}

.btn-outline:hover {
  background: rgba(12, 35, 64, 0.05);
}

.btn-whatsapp {
  background: #25D366;
  color: #FFFFFF;
}

.btn-whatsapp:hover {
  background: #20BA5A;
  color: #FFFFFF;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--bg-dark);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 11rem 2rem 7rem;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-content h1 span {
  color: var(--accent-gold);
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

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

.hero-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.5rem;
  box-shadow: var(--shadow);
  position: relative;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-gold);
  border-radius: 4px 0 0 4px;
}

/* Trust Bar */
.trust-bar {
  background: var(--bg-dark);
  color: #FFFFFF;
  padding: 3rem 2rem;
}

.trust-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.trust-item h3 {
  font-size: 2.25rem;
  color: var(--accent-gold);
  margin-bottom: 0.25rem;
  font-family: var(--font-sans);
  font-weight: 700;
}

.trust-item p {
  color: #CBD5E0;
  font-size: 0.95rem;
}

/* Sections */
section {
  padding: 6rem 2rem;
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-header span {
  color: var(--accent-gold);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-size: 2.75rem;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* Grid Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

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

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2.5rem;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 20px rgba(0,0,0,0.03);
}

.card:hover {
  border-color: var(--accent-gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card-icon {
  width: 50px;
  height: 50px;
  border-radius: 6px;
  background: rgba(184, 134, 11, 0.1);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-sans);
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-price {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--bg-dark);
  margin-bottom: 1.5rem;
}

/* Interactive Entity Selector */
.selector-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 3rem;
  max-width: 850px;
  margin: 0 auto;
}

.selector-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 2rem 0;
}

.selector-btn {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
  font-size: 1rem;
}

.selector-btn:hover, .selector-btn.active {
  border-color: var(--accent-gold);
  background: rgba(184, 134, 11, 0.05);
  color: var(--bg-dark);
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
  padding-left: 60px;
}

.timeline-dot {
  position: absolute;
  left: 15px;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-gold);
}

.timeline-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 8px;
}

.timeline-content h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
  font-family: var(--font-sans);
}

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

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.faq-question {
  padding: 1.25rem 1.5rem;
  width: 100%;
  background: none;
  border: none;
  color: var(--bg-dark);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-sans);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  display: none;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  display: block;
}

/* Contact Grid */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.contact-info-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.5rem;
}

.contact-info-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.contact-info-item i {
  color: var(--accent-gold);
  font-size: 1.25rem;
  margin-top: 4px;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--bg-dark);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-main);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.1);
}

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

/* Chatbot Widget */
.chatbot-widget {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
}

.chatbot-toggle-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--bg-dark);
  color: var(--accent-gold);
  border: 2px solid var(--accent-gold);
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(12, 35, 64, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.chatbot-toggle-btn:hover {
  transform: scale(1.05);
}

.chatbot-window {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 380px;
  height: 520px;
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.chatbot-window.active {
  display: flex;
}

.chatbot-header {
  background: var(--bg-dark);
  color: #FFFFFF;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chatbot-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.95rem;
}

.chatbot-status {
  width: 8px;
  height: 8px;
  background: #27C93F;
  border-radius: 50%;
}

.chatbot-close {
  background: none;
  border: none;
  color: #FFFFFF;
  cursor: pointer;
  font-size: 1.2rem;
}

.chatbot-messages {
  flex-grow: 1;
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--bg-secondary);
}

.chat-msg {
  max-width: 85%;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  line-height: 1.5;
}

.chat-msg.bot {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  align-self: flex-start;
  color: var(--text-main);
}

.chat-msg.user {
  background: var(--bg-dark);
  color: #FFFFFF;
  align-self: flex-end;
  font-weight: 500;
}

.chatbot-quick-replies {
  padding: 0.5rem 1rem;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  border-top: 1px solid var(--border-color);
  background: #FFFFFF;
}

.quick-reply-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--bg-dark);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
}

.quick-reply-btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.chatbot-input-area {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border-color);
  background: #FFFFFF;
  display: flex;
  gap: 0.5rem;
}

.chatbot-input {
  flex-grow: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
  color: var(--text-main);
  font-size: 0.9rem;
}

.chatbot-send {
  background: var(--accent-gold);
  color: #FFFFFF;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--bg-dark);
  color: #FFFFFF;
  padding: 1.25rem 2rem;
  z-index: 10000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  box-shadow: 0 -10px 30px rgba(0,0,0,0.2);
}

.cookie-banner.hidden {
  display: none;
}

.cookie-text {
  font-size: 0.9rem;
  color: #CBD5E0;
  max-width: 900px;
}

.cookie-text a {
  color: var(--accent-gold);
}

.cookie-actions {
  display: flex;
  gap: 1rem;
  flex-shrink: 0;
}

/* Footer */
footer {
  background: var(--bg-dark);
  color: #FFFFFF;
  padding: 5rem 2rem 2rem;
  margin-top: 6rem;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  color: var(--accent-gold);
  font-family: var(--font-sans);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col a {
  color: #CBD5E0;
  font-size: 0.9rem;
}

.footer-col a:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #A0AEC0;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 9rem;
  }
  .hero-buttons {
    justify-content: center;
  }
  .grid-3, .grid-2, .trust-container, .contact-grid, .footer-container, .selector-options {
    grid-template-columns: 1fr;
  }
  .nav-links, .nav-actions {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
}