@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

/* --- PRESETS & VARIABLES --- */
:root {
  --primary: #0F172A; /* Azul Marino Autoridad */
  --primary-dark: #020617;
  --primary-light: #1E293B;
  --secondary: #475569; /* Gris Pizarra */
  --secondary-light: #F1F5F9;
  --accent: #D97706; /* Oro Mate */
  --accent-light: #FEF3C7;
  --accent-hover: #B45309;
  
  --text-main: #0F172A;
  --text-muted: #334155;
  --text-light: #64748B;
  --text-white: #FFFFFF;
  
  --bg-main: #FFFFFF;
  --bg-alt: #F8FAFC;
  --bg-dark: #0F172A;
  --border-color: #E2E8F0;
  
  --font-headings: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
  
  --radius-sm: 4px; /* Bordes rectos y corporativos */
  --radius-md: 8px;
  --radius-lg: 12px;
  
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -1px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --max-width: 1140px;
}

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

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  font-weight: 600;
  line-height: 1.2;
  color: var(--primary);
  letter-spacing: -0.01em;
}

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

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

/* --- STRUCTURE UTILITIES --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

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

.gold-divider {
  width: 60px;
  height: 2px;
  background-color: var(--accent);
  margin: 20px 0;
}

.gold-divider.center {
  margin: 20px auto;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-accent:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.2);
}

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

.btn-outline:hover {
  background-color: var(--secondary-light);
  transform: translateY(-1px);
}

.btn-outline-white {
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--text-white);
}

.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--text-white);
  transform: translateY(-1px);
}

/* --- STICKY NAVIGATION --- */
header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition-smooth);
}

header.scrolled {
  position: fixed;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border-color);
}

header.scrolled-dark {
  position: fixed;
  background-color: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

header.scrolled .navbar,
header.scrolled-dark .navbar {
  padding: 16px 0;
}

.logo {
  font-family: var(--font-headings);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-symbol {
  border-left: 3px solid var(--accent);
  padding-left: 8px;
  font-style: italic;
  font-size: 1.5rem;
}

/* Header Text Color rules based on active page / scroll */
header.dark-theme .logo {
  color: var(--text-white);
}

header.light-theme .logo {
  color: var(--primary);
}

header.scrolled-dark .logo {
  color: var(--text-white);
}

header.scrolled .logo {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

header.dark-theme .nav-links a {
  color: rgba(255, 255, 255, 0.7);
}

header.dark-theme .nav-links a:hover,
header.dark-theme .nav-links a.active {
  color: var(--text-white);
}

header.light-theme .nav-links a {
  color: var(--text-muted);
}

header.light-theme .nav-links a:hover,
header.light-theme .nav-links a.active {
  color: var(--primary);
}

header.scrolled-dark .nav-links a {
  color: rgba(255, 255, 255, 0.7);
}

header.scrolled-dark .nav-links a:hover,
header.scrolled-dark .nav-links a.active {
  color: var(--text-white);
}

header.scrolled .nav-links a {
  color: var(--text-muted);
}

header.scrolled .nav-links a:hover,
header.scrolled .nav-links a.active {
  color: var(--primary);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  transition: var(--transition-smooth);
}

header.dark-theme .menu-toggle span {
  background-color: var(--text-white);
}

header.light-theme .menu-toggle span {
  background-color: var(--primary);
}

header.scrolled-dark .menu-toggle span {
  background-color: var(--text-white);
}

header.scrolled .menu-toggle span {
  background-color: var(--primary);
}

/* --- VISUAL HEADER DIFFERENTIATIONS (BANNERS SUPERIORES) --- */

/* Style A: Immersive Dark Split (index.html) */
.hero-index {
  background-color: var(--bg-dark);
  color: var(--text-white);
  padding: 180px 0 120px 0;
  position: relative;
  overflow: hidden;
}

.hero-index::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 80% 20%, rgba(217, 119, 6, 0.08) 0%, rgba(15, 23, 42, 0) 50%);
  pointer-events: none;
}

.hero-index-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-index-content h1 {
  font-size: 3.6rem;
  font-weight: 500;
  color: var(--text-white);
  margin-bottom: 24px;
}

.hero-index-content p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 40px;
  max-width: 500px;
}

.hero-index-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 32px;
}

.hero-index-stats .stat-item h3 {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 4px;
}

.hero-index-stats .stat-item p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.hero-index-visual {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow-lg);
}

.hero-index-visual img {
  border-radius: var(--radius-sm);
  width: 100%;
}

/* Style B: Asymmetrical High-Contrast Clear (servicios.html) */
.hero-services {
  background-color: var(--bg-main);
  padding: 180px 0 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.hero-services-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: end;
}

.hero-services-title h1 {
  font-size: 3.5rem;
  font-weight: 500;
  color: var(--primary);
}

.hero-services-desc {
  border-left: 2px solid var(--accent);
  padding-left: 40px;
  margin-bottom: 12px;
}

.hero-services-desc p {
  font-size: 1.15rem;
  color: var(--text-muted);
  font-style: italic;
  font-family: var(--font-headings);
}

/* Style C: Newspaper / Academic Review Header (blog.html) */
.hero-blog {
  background-color: var(--secondary-light);
  padding: 160px 0 80px 0;
  border-bottom: 2px double var(--primary);
}

.hero-blog-journal {
  border: 1px solid var(--primary);
  padding: 40px;
  text-align: center;
  position: relative;
}

.journal-header {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-light);
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 24px;
}

.hero-blog-journal h1 {
  font-size: 3.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: 8px;
}

.journal-subtitle {
  font-family: var(--font-headings);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--secondary);
}

/* Style D: Embedded Direct Header (contacto.html) */
.hero-contact {
  display: none; /* No header banner at all! Blends straight to content */
}

.contact-direct-page {
  padding-top: 140px;
  background-color: var(--bg-alt);
  min-height: 100vh;
}

/* --- HOME PAGE SECTIONS --- */
.intro-text {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto 60px auto;
  line-height: 1.8;
}

/* Services Split Cards */
.services-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-summary-card {
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 48px 32px;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

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

.service-summary-card h3 {
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.service-summary-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 30px;
  flex-grow: 1;
}

.service-summary-card .readmore-link {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-summary-card .readmore-link:hover {
  gap: 12px;
}

/* Expert Trust block */
.expert-trust-block {
  background-color: var(--bg-alt);
}

.expert-trust-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.expert-trust-image {
  border: 1px solid var(--border-color);
  background-color: var(--bg-main);
  padding: 10px;
}

.expert-trust-content h2 {
  font-size: 2.5rem;
  margin-bottom: 24px;
}

.expert-trust-content p {
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* Review / Opinion Block */
.opinion-carousel-section {
  background-color: var(--bg-main);
}

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

.opinion-quote {
  font-family: var(--font-headings);
  font-size: 1.6rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--primary-light);
  margin-bottom: 32px;
}

.opinion-author h4 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-hover);
}

.opinion-author p {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* --- SERVICES DETAIL PAGE --- */
.detailed-services-list {
  display: flex;
  flex-direction: column;
  gap: 100px;
}

.detailed-service-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.detailed-service-item.reverse {
  grid-template-columns: 1fr 1fr;
}

.detailed-service-content h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.detailed-service-content p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

.service-features-list {
  list-style: none;
  margin-bottom: 36px;
}

.service-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.service-features-list li::before {
  content: '▪';
  color: var(--accent);
  font-size: 1.1rem;
  line-height: 1;
}

.detailed-service-image {
  border: 1px solid var(--border-color);
  padding: 8px;
  background-color: var(--bg-main);
}

/* --- BLOG PAGE --- */
.blog-controls {
  margin-bottom: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
}

.blog-filters {
  display: flex;
  gap: 12px;
}

.blog-filter-btn {
  background: none;
  border: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-light);
  cursor: pointer;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
}

.blog-filter-btn:hover {
  color: var(--primary);
}

.blog-filter-btn.active {
  background-color: var(--primary);
  color: var(--text-white);
}

.blog-search-bar {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  width: 280px;
  font-family: var(--font-body);
  font-size: 0.9rem;
}

.blog-search-bar:focus {
  border-color: var(--primary);
  outline: none;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.blog-card {
  background-color: var(--bg-main);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 40px;
  display: flex;
  flex-direction: column;
}

.blog-card-meta {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-hover);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: flex;
  gap: 16px;
}

.blog-card-meta span:not(:last-child)::after {
  content: '|';
  margin-left: 16px;
  color: var(--border-color);
}

.blog-card h3 {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.blog-card h3 a:hover {
  color: var(--accent);
}

.blog-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
  flex-grow: 1;
}

.blog-card .read-article-link {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.blog-card .read-article-link:hover {
  color: var(--accent);
}

.blog-no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 0;
  color: var(--text-light);
}

/* --- CONTACT / BOOKING PAGE --- */
.booking-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-bottom: 100px;
}

.booking-info-sidebar {
  background-color: var(--primary);
  color: var(--text-white);
  padding: 60px 40px;
}

.booking-info-sidebar h2 {
  color: var(--text-white);
  font-size: 2rem;
  margin-bottom: 24px;
}

.booking-info-sidebar p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  margin-bottom: 40px;
}

.booking-agenda-list {
  list-style: none;
}

.booking-agenda-list li {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.agenda-num {
  width: 28px;
  height: 28px;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.agenda-text h4 {
  color: var(--text-white);
  font-size: 1rem;
  margin-bottom: 4px;
}

.agenda-text p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0;
}

.booking-form-area {
  padding: 60px;
}

.booking-form-area h3 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.booking-form-area > p {
  color: var(--text-light);
  margin-bottom: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background-color: var(--bg-alt);
  transition: var(--transition-smooth);
}

.form-control:focus {
  border-color: var(--accent);
  background-color: var(--bg-main);
  outline: none;
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

/* --- FOOTER --- */
footer {
  background-color: var(--primary-dark);
  color: rgba(255, 255, 255, 0.6);
  padding: 80px 0 40px 0;
  border-top: 4px solid var(--accent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 60px;
  margin-bottom: 56px;
}

.footer-brand .logo {
  color: var(--text-white);
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.footer-col h4 {
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.footer-links li {
  margin-bottom: 12px;
}

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

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

.footer-contact li {
  font-size: 0.9rem;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
}

.footer-contact span:first-child {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

/* --- RESPONSIVE BREAKPOINTS --- */
@media (max-width: 1024px) {
  .hero-index-content h1 {
    font-size: 2.8rem;
  }
  .hero-index-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-index-visual {
    max-width: 500px;
    margin: 0 auto;
  }
  .hero-services-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .hero-services-desc {
    padding-left: 20px;
  }
  .services-summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .booking-grid {
    grid-template-columns: 1fr;
  }
  .detailed-service-item {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .detailed-service-item.reverse {
    grid-template-columns: 1fr;
  }
  .detailed-service-image {
    order: -1;
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding: 60px 0;
  }
  .navbar {
    padding: 20px 0;
  }
  .menu-toggle {
    display: flex;
  }
  .nav-links {
    position: fixed;
    top: 80px;
    left: 24px;
    right: 24px;
    background-color: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    flex-direction: column;
    padding: 30px;
    gap: 20px;
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
    z-index: 999;
  }
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-links a {
    color: rgba(255, 255, 255, 0.7) !important;
    width: 100%;
    text-align: center;
    display: block;
  }
  .nav-links a:hover {
    color: var(--text-white) !important;
  }
  .hero-blog h1 {
    font-size: 2.5rem;
  }
  .services-summary-grid {
    grid-template-columns: 1fr;
  }
  .expert-trust-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .blog-controls {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .blog-search-bar {
    width: 100%;
  }
  .blog-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-index-content h1 {
    font-size: 2.2rem;
  }
  .hero-index-stats {
    flex-direction: column;
    gap: 20px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .booking-form-area {
    padding: 30px;
  }
  .booking-info-sidebar {
    padding: 40px 30px;
  }
}