:root{
  /* Paleta principal */
  --carbon:#1E1E1E;
  --carbon-light:#2A2A2A;
  --carbon-lighter:#404040;
  --gold:#C6A15B;
  --gold-light:#D4B86F;
  --gold-dark:#B8954A;
  --ivory:#F6F2E8;
  --ivory-dark:#F0EBE0;
  --burgundy:#7A1E2C;
  --burgundy-light:#8B2538;
  --burgundy-dark:#6B1A26;
  
  /* Colores de apoyo */
  --accent-blue:#2563EB;
  --accent-green:#059669;
  --accent-orange:#EA580C;
  --gray-50:#F9FAFB;
  --gray-100:#F3F4F6;
  --gray-200:#E5E7EB;
  --gray-300:#D1D5DB;
  --gray-600:#4B5563;
  --gray-800:#1F2937;
  
  /* Shadows */
  --shadow-sm:0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md:0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg:0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl:0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Typography */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Animations */
  --transition-fast: 0.15s ease-out;
  --transition-base: 0.25s ease-out;
  --transition-slow: 0.5s ease-out;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth; font-size: 16px;}

body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: var(--font-size-base);
  line-height: 1.6;
  color:var(--carbon);
  background:var(--ivory);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', Georgia, serif;
  margin: 0 0 var(--space-3);
  font-weight: 700;
  line-height: 1.2;
  color: var(--carbon);
}

h1 { font-size: var(--font-size-5xl); margin-bottom: var(--space-6); }
h2 { font-size: var(--font-size-4xl); margin-bottom: var(--space-5); }
h3 { font-size: var(--font-size-2xl); margin-bottom: var(--space-4); }
h4 { font-size: var(--font-size-xl); margin-bottom: var(--space-3); }
h5 { font-size: var(--font-size-lg); margin-bottom: var(--space-3); }
h6 { font-size: var(--font-size-base); margin-bottom: var(--space-2); }

.text-xl { font-size: var(--font-size-xl); }
.text-lg { font-size: var(--font-size-lg); }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.container{
  max-width:1140px;
  margin:0 auto;
  padding:0 var(--space-5);
}

/* Buttons System */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:var(--space-2);
  padding:var(--space-3) var(--space-6);
  border-radius:999px;
  text-decoration:none;
  font-weight:600;
  font-size:var(--font-size-base);
  transition:all var(--transition-base);
  cursor:pointer;
  border:2px solid transparent;
  position:relative;
  overflow:hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary{
  background:var(--burgundy);
  color:#fff;
  box-shadow:var(--shadow-md);
}

.btn-primary:hover{
  background:var(--burgundy-dark);
  transform:translateY(-2px);
  box-shadow:var(--shadow-xl);
}

.btn-outline{
  border:2px solid var(--burgundy);
  color:var(--burgundy);
  background:transparent;
}

.btn-outline:hover{
  background:var(--burgundy);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-lg);
}

.btn-secondary{
  background:var(--gold);
  color:var(--carbon);
  box-shadow:var(--shadow-md);
}

.btn-secondary:hover{
  background:var(--gold-dark);
  transform:translateY(-2px);
  box-shadow:var(--shadow-xl);
}

.btn-xs{
  padding:var(--space-2) var(--space-4);
  font-size:var(--font-size-sm);
  border-radius:12px;
}

.btn-sm{
  padding:var(--space-2) var(--space-5);
  font-size:var(--font-size-sm);
}

.btn-lg{
  padding:var(--space-4) var(--space-8);
  font-size:var(--font-size-lg);
}
/* Header & Navigation */
.header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255, 255, 255, 0.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--gray-200);
  transition:all var(--transition-base);
}

.header.scrolled {
  background:rgba(255, 255, 255, 0.98);
  box-shadow:var(--shadow-md);
}

.header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:var(--space-3) 0;
}

.brand{
  display:flex;
  align-items:center;
  gap:var(--space-3);
  text-decoration:none;
  color:var(--carbon);
  transition:transform var(--transition-base);
}

.brand:hover {
  transform:scale(1.05);
}

.brand img{
  width:40px;
  height:40px;
  transition:transform var(--transition-base);
}

.brand strong {
  font-size:var(--font-size-lg);
  font-weight:700;
}

.nav{
  display:flex;
  align-items:center;
  gap:var(--space-6);
}

.nav a{
  color:var(--carbon);
  text-decoration:none;
  font-weight:500;
  padding:var(--space-2) var(--space-3);
  border-radius:8px;
  transition:all var(--transition-base);
  position:relative;
}

.nav a::after {
  content:'';
  position:absolute;
  bottom:0;
  left:50%;
  width:0;
  height:2px;
  background:var(--burgundy);
  transition:all var(--transition-base);
  transform:translateX(-50%);
}

.nav a:hover {
  color:var(--burgundy);
  background:var(--ivory-dark);
}

.nav a:hover::after {
  width:80%;
}

/* Mobile Menu */
.menu-toggle {
  display:none;
  flex-direction:column;
  gap:3px;
  background:none;
  border:none;
  cursor:pointer;
  padding:var(--space-2);
  border-radius:6px;
  transition:all var(--transition-base);
}

.menu-toggle:hover {
  background:var(--ivory-dark);
}

.menu-toggle span {
  width:24px;
  height:3px;
  background:var(--carbon);
  border-radius:2px;
  transition:all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform:rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
  opacity:0;
}

.menu-toggle.active span:nth-child(3) {
  transform:rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 768px) {
  .menu-toggle {
    display:flex;
  }
  
  .nav {
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:rgba(255, 255, 255, 0.98);
    backdrop-filter:blur(10px);
    border-top:1px solid var(--gray-200);
    flex-direction:column;
    padding:var(--space-4);
    gap:var(--space-2);
    box-shadow:var(--shadow-lg);
  }
  
  .nav.active {
    display:flex;
  }
  
  .nav a {
    width:100%;
    text-align:center;
    padding:var(--space-3);
    border-radius:8px;
  }
}
/* Hero Section */
.hero{
  background:
    radial-gradient(ellipse at center, rgba(122,30,44,.25) 0%, rgba(0,0,0,0) 60%),
    linear-gradient(135deg, rgba(198,161,91,0.1) 0%, rgba(122,30,44,0.1) 100%),
    url('./assets/img/hero-placeholder.jpg') center/cover no-repeat;
  padding:var(--space-24) 0 var(--space-20);
  position:relative;
  overflow:hidden;
}

.hero::before {
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  bottom:0;
  background:linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.03) 50%, transparent 70%);
  animation:shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { transform:translateX(-100%); }
  50% { transform:translateX(100%); }
}

.hero .title{
  font-size:clamp(var(--font-size-4xl), 6vw, var(--font-size-6xl));
  background:linear-gradient(135deg, var(--carbon) 0%, var(--burgundy) 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  margin-bottom:var(--space-6);
  animation:fadeInUp 1s ease-out;
}

.hero .sub{
  max-width:680px;
  font-size:var(--font-size-xl);
  color:var(--carbon-lighter);
  margin:var(--space-4) 0 var(--space-8);
  animation:fadeInUp 1s ease-out 0.2s both;
}

.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(320px,520px);
  align-items:center;
  gap:clamp(var(--space-4), 4vw, var(--space-12));
}

.hero-copy {
  animation:fadeInLeft 1s ease-out 0.4s both;
}

.hero-brand {
  animation:fadeInRight 1s ease-out 0.6s both;
}

.logo-hero{
  width:100%;
  max-width:520px;
  aspect-ratio:1/1;
  object-fit:contain;
  filter:drop-shadow(0 20px 40px rgba(0,0,0,.15));
  image-rendering:auto;
  transition:transform var(--transition-slow);
}

.logo-hero:hover {
  transform:scale(1.05) rotate(2deg);
}

.hero-buttons {
  display:flex;
  gap:var(--space-4);
  flex-wrap:wrap;
  margin-top:var(--space-6);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity:0;
    transform:translateY(30px);
  }
  to {
    opacity:1;
    transform:translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity:0;
    transform:translateX(-30px);
  }
  to {
    opacity:1;
    transform:translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity:0;
    transform:translateX(30px);
  }
  to {
    opacity:1;
    transform:translateX(0);
  }
}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .hero-brand{order:2;display:grid;place-items:center;margin-top:var(--space-4)}
  .logo-hero{max-width:380px}
  .hero{padding:var(--space-16) 0 var(--space-12)}
  .hero-buttons {justify-content:center}
}
/* Sections */
.section{
  padding:var(--space-20) 0;
}

.section h2 {
  text-align:center;
  margin-bottom:var(--space-3);
}

.section-description {
  text-align:center;
  font-size:var(--font-size-lg);
  color:var(--gray-600);
  margin-bottom:var(--space-12);
  max-width:600px;
  margin-left:auto;
  margin-right:auto;
}

.grid{
  display:grid;
  gap:var(--space-6);
}

.grid-3{
  grid-template-columns:repeat(auto-fit, minmax(300px, 1fr));
}

/* Portfolio Section */
.portfolio-filters {
  display:flex;
  justify-content:center;
  gap:var(--space-3);
  margin-bottom:var(--space-12);
  flex-wrap:wrap;
}

.filter-btn {
  background:transparent;
  border:2px solid var(--gray-300);
  color:var(--gray-600);
  padding:var(--space-2) var(--space-5);
  border-radius:999px;
  cursor:pointer;
  font-weight:500;
  transition:all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
  background:var(--burgundy);
  border-color:var(--burgundy);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
}

.portfolio-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(350px, 1fr));
  gap:var(--space-8);
  margin-bottom:var(--space-12);
}

.portfolio-item {
  transition:all var(--transition-base);
  border-radius:16px;
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-md);
}

.portfolio-item:hover {
  transform:translateY(-8px);
  box-shadow:var(--shadow-xl);
}

.portfolio-item.hidden {
  display:none;
}

.portfolio-image {
  position:relative;
  overflow:hidden;
  aspect-ratio:4/3;
}

.portfolio-image img {
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform var(--transition-slow);
}

.portfolio-item:hover .portfolio-image img {
  transform:scale(1.1);
}

.portfolio-overlay {
  position:absolute;
  bottom:0;
  left:0;
  right:0;
  background:linear-gradient(transparent, rgba(0,0,0,0.8));
  color:#fff;
  padding:var(--space-6);
  transform:translateY(100%);
  transition:transform var(--transition-base);
}

.portfolio-item:hover .portfolio-overlay {
  transform:translateY(0);
}

.portfolio-overlay h3 {
  color:#fff;
  font-size:var(--font-size-xl);
  margin-bottom:var(--space-2);
}

.portfolio-overlay p {
  font-size:var(--font-size-sm);
  margin-bottom:var(--space-3);
  opacity:0.9;
}

.portfolio-category {
  display:inline-block;
  background:var(--burgundy);
  color:#fff;
  padding:var(--space-1) var(--space-3);
  border-radius:999px;
  font-size:var(--font-size-xs);
  font-weight:600;
}

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

@media (max-width: 768px) {
  .portfolio-grid {
    grid-template-columns:1fr;
    gap:var(--space-6);
  }
  
  .portfolio-filters {
    gap:var(--space-2);
  }
  
  .filter-btn {
    padding:var(--space-2) var(--space-4);
    font-size:var(--font-size-sm);
  }
}
/* Process Timeline */
.timeline {
  position:relative;
  max-width:800px;
  margin:0 auto;
}

.timeline::before {
  content:'';
  position:absolute;
  left:50%;
  top:0;
  bottom:0;
  width:4px;
  background:linear-gradient(to bottom, var(--burgundy), var(--gold));
  transform:translateX(-50%);
  border-radius:2px;
}

.timeline-item {
  position:relative;
  margin:var(--space-12) 0;
  display:flex;
  align-items:center;
  gap:var(--space-6);
}

.timeline-item:nth-child(even) {
  flex-direction:row-reverse;
}

.timeline-marker {
  position:relative;
  z-index:2;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:var(--space-2);
}

.timeline-icon {
  width:80px;
  height:80px;
  background:#fff;
  border:4px solid var(--burgundy);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:2rem;
  box-shadow:var(--shadow-lg);
  transition:all var(--transition-base);
}

.timeline-item:hover .timeline-icon {
  transform:scale(1.1);
  border-color:var(--gold);
  box-shadow:var(--shadow-xl);
}

.timeline-number {
  background:var(--burgundy);
  color:#fff;
  width:32px;
  height:32px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  font-size:var(--font-size-sm);
  box-shadow:var(--shadow-md);
}

.timeline-content {
  flex:1;
  background:#fff;
  padding:var(--space-6);
  border-radius:16px;
  box-shadow:var(--shadow-md);
  border:1px solid var(--gray-200);
  transition:all var(--transition-base);
  max-width:380px;
}

.timeline-item:hover .timeline-content {
  transform:translateY(-4px);
  box-shadow:var(--shadow-xl);
  border-color:var(--burgundy);
}

.timeline-content h3 {
  color:var(--burgundy);
  margin-bottom:var(--space-3);
  font-size:var(--font-size-xl);
}

.timeline-content p {
  color:var(--gray-600);
  margin-bottom:var(--space-4);
  line-height:1.6;
}

.timeline-features {
  list-style:none;
  padding:0;
  margin:0;
}

.timeline-features li {
  padding:var(--space-1) 0;
  font-size:var(--font-size-sm);
  color:var(--gray-600);
  position:relative;
  padding-left:var(--space-5);
}

.timeline-features li::before {
  content:'→';
  position:absolute;
  left:0;
  color:var(--burgundy);
  font-weight:bold;
}

/* Mobile Timeline */
@media (max-width: 768px) {
  .timeline::before {
    left:20px;
  }
  
  .timeline-item {
    flex-direction:row !important;
    margin:var(--space-8) 0;
  }
  
  .timeline-marker {
    position:absolute;
    left:0;
  }
  
  .timeline-icon {
    width:60px;
    height:60px;
    font-size:1.5rem;
  }
  
  .timeline-number {
    width:24px;
    height:24px;
    font-size:var(--font-size-xs);
  }
  
  .timeline-content {
    margin-left:80px;
    max-width:none;
  }
}
/* Testimonials styles removed - section is hidden */

/* Clients Section */
.clients {
  background:#fff;
}

.clients-logos{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  align-items:center;
  justify-items:center;
}

.clients-logos img{
  width: 100%;
  max-width: 280px;
  height: 140px;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.7);
  transition: all var(--transition-base);
  padding: var(--space-4);
  border-radius: 12px;
}

.clients-logos img:hover {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

@media (max-width: 768px){
  .clients-logos{ 
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: var(--space-4);
  }
}


/* Contact Section */
.contact {
  background: linear-gradient(135deg, var(--burgundy) 0%, var(--burgundy-dark) 100%);
  color: #fff;
}

.contact h2, .contact h3 {
  color: #fff;
}

.contact .section-description {
  color: rgba(255, 255, 255, 0.9);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-12);
  align-items: start;
}

.contact-info h3 {
  margin-bottom: var(--space-8);
  font-size: var(--font-size-2xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateX(8px);
}

.contact-icon {
  font-size: 1.5rem;
  min-width: 40px;
}

.contact-details strong {
  display: block;
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-1);
}

.contact-details a {
  color: var(--gold-light);
  text-decoration: none;
  transition: color var(--transition-base);
}

.contact-details a:hover {
  color: #fff;
}

.contact-cta {
  margin-top: var(--space-8);
  text-align: center;
}

.contact-form-container {
  background: #fff;
  padding: var(--space-8);
  border-radius: 20px;
  box-shadow: var(--shadow-xl);
}

.contact-form-container h3 {
  color: var(--carbon);
  margin-bottom: var(--space-6);
  text-align: center;
}

/* Email Brief Card */
.email-brief-card {
  text-align: center;
  padding: var(--space-6);
}

.brief-icon {
  font-size: 4rem;
  margin-bottom: var(--space-4);
}

.email-brief-card h4 {
  color: var(--burgundy);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-xl);
}

.email-brief-card p {
  color: var(--carbon-light);
  margin-bottom: var(--space-6);
  line-height: 1.6;
  font-weight: 500;
}

.brief-template {
  background: #fff;
  border: 2px solid var(--burgundy);
  padding: var(--space-6);
  border-radius: 12px;
  margin: var(--space-6) 0;
  text-align: left;
  box-shadow: var(--shadow-sm);
}

.brief-template h5 {
  color: var(--burgundy);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.brief-checklist {
  list-style: none;
  padding: 0;
  margin: 0;
}

.brief-checklist li {
  padding: var(--space-3) 0;
  font-size: var(--font-size-sm);
  color: var(--carbon);
  font-weight: 500;
  border-bottom: 1px solid var(--gray-300);
  line-height: 1.5;
}

.brief-checklist li:last-child {
  border-bottom: none;
}

.brief-checklist li strong {
  color: var(--burgundy);
}

.alternative-contact {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--gray-200);
}

.alternative-contact p {
  margin-bottom: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--carbon-light);
  font-weight: 500;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .contact-form-container {
    padding: var(--space-6);
  }
  
  .contact-item {
    margin-bottom: var(--space-4);
  }
  
  .email-brief-card {
    padding: var(--space-4);
  }
  
  .brief-template {
    padding: var(--space-4);
  }
}
.sticky-wa{position:fixed;bottom:18px;right:18px;z-index:60}.sticky-wa a{box-shadow:0 8px 20px rgba(0,0,0,.18)}
/* Services Section */
.services-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(320px, 1fr));
  gap:var(--space-8);
}

.service-card {
  position:relative;
  min-height:400px;
  height:auto;
  perspective:1000px;
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow-md);
  transition:all var(--transition-base);
}

.service-card:hover {
  transform:translateY(-8px);
  box-shadow:var(--shadow-xl);
}

.service-icon {
  font-size:3rem;
  margin-bottom:var(--space-4);
  text-align:center;
  filter:drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.service-preview {
  font-size:var(--font-size-sm);
  color:var(--gray-600);
  margin-top:var(--space-2);
}

.service-features {
  list-style:none;
  padding:0;
  margin:var(--space-4) 0;
}

.service-features li {
  padding:var(--space-1) 0;
  font-size:var(--font-size-sm);
  color:var(--gray-600);
}

.badge{
  display:inline-block;
  background:var(--gold-light);
  color:var(--carbon);
  padding:var(--space-1) var(--space-3);
  border-radius:12px;
  font-size:var(--font-size-xs);
  font-weight:600;
  margin-left:var(--space-2);
}

/* Flip Cards Enhanced */
.flip-inner{
  position:relative;
  height:100%;
  transform-style:preserve-3d;
  -webkit-transform-style:preserve-3d;
  transition:transform 0.8s cubic-bezier(.2,.8,.2,1);
}

.flip-face{
  position:absolute;
  inset:0;
  border-radius:inherit;
  display:flex;
  flex-direction:column;
  justify-content:flex-start;
  align-items:center;
  text-align:center;
  gap:var(--space-3);
  padding:var(--space-6);
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
  background:#fff;
  overflow-y:auto;
}

.flip-front{
  transform:rotateY(0deg);
  background:linear-gradient(135deg, var(--ivory) 0%, #fff 100%);
}

.flip-back{
  transform:rotateY(180deg);
  background:linear-gradient(135deg, #fff 0%, var(--ivory-dark) 100%);
  justify-content:flex-start;
  align-items:stretch;
  text-align:left;
  padding:var(--space-8);
}

.flip[aria-expanded=true] .flip-inner{
  transform:rotateY(180deg);
}

.flip-title{
  appearance:none;
  background:none;
  border:0;
  padding:0;
  font:inherit;
  color:inherit;
  cursor:pointer;
  text-align:center;
  transition:color var(--transition-base);
}

.flip-title:hover {
  color:var(--burgundy);
}

.flip-title:focus-visible{
  outline:2px solid var(--burgundy);
  border-radius:6px;
  outline-offset:2px;
}

.flip-back h3 {
  color:var(--burgundy);
  margin-bottom:var(--space-3);
}

@media (prefers-reduced-motion: reduce){
  .flip-inner{transition:none}
  .service-card:hover {transform:none}
}

@media (max-width: 768px) {
  .services-grid {
    grid-template-columns:1fr;
    gap:var(--space-6);
  }
  
  .service-card {
    min-height:380px;
  }
  
  .flip-face {
    padding:var(--space-5);
  }
  
  .flip-back {
    padding:var(--space-6);
  }
  
  .service-features {
    font-size:var(--font-size-xs);
  }
}
@media (max-width:800px){.grid-3{grid-template-columns:1fr}.hero{padding:56px 0}}

/* Footer */
.footer{
  background: linear-gradient(135deg, #111 0%, #1a1a1a 100%);
  color: #eee;
  padding: var(--space-12) 0;
  margin-top: 0;
  font-size: var(--font-size-sm);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--burgundy), transparent);
}

.footer a{
  color: var(--gold-light);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer a:hover {
  color: #fff;
}

small, .muted {
  opacity: 0.75;
}

/* Sticky WhatsApp */
.sticky-wa{
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 100;
  animation: bounce 2s infinite;
}

.sticky-wa a{
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: #25D366;
  color: #fff;
  text-decoration: none;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  font-size: var(--font-size-sm);
}

.sticky-wa a:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.6);
}

.sticky-wa a::before {
  content: '💬';
  font-size: 1.2rem;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

@media (max-width: 768px) {
  .sticky-wa {
    bottom: var(--space-4);
    right: var(--space-4);
  }
  
  .sticky-wa a {
    padding: var(--space-3);
    font-size: 0;
  }
  
  .sticky-wa a::before {
    font-size: 1.5rem;
  }
}