/* =====================================================
   Bella Essence — Premium Beauty Salon Website
   CSS3 + Tailwind + Custom Luxury Design System
   ===================================================== */

:root {
  --color-cream: #FFFDFB;
  --color-gold: #D4AF37;
  --color-rose-gold: #C08497;
  --color-cream-dark: #F5E6CC;
  --color-charcoal: #2B2B2B;
  --color-success: #22C55E;
  --shadow-soft: 0 10px 40px -10px rgba(43, 43, 43, 0.1);
  --shadow-gold: 0 10px 40px -10px rgba(212, 175, 55, 0.3);
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Tailwind Config Colors */
.bg-cream { background-color: var(--color-cream); }
.text-gold { color: var(--color-gold); }
.bg-gold { background-color: var(--color-gold); }
.text-rose-gold { color: var(--color-rose-gold); }
.bg-rose-gold { background-color: var(--color-rose-gold); }
.text-charcoal { color: var(--color-charcoal); }
.bg-charcoal { background-color: var(--color-charcoal); }
.text-success { color: var(--color-success); }

/* Font Families */
.font-serif { font-family: 'Playfair Display', serif; }
.font-sans { font-family: 'Poppins', sans-serif; }
.font-interface { font-family: 'Inter', sans-serif; }

/* Smooth Scroll */
html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-cream);
  color: var(--color-charcoal);
  transition: background-color 0.5s ease, color 0.5s ease;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-gold);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 1rem 1rem;
  z-index: 9999;
  font-weight: 500;
  transition: top 0.3s ease;
}
.skip-link:focus {
  top: 0;
}

/* Glassmorphism */
.glass {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

#site-header.scrolled {
  background: rgba(255, 253, 251, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(245, 230, 204, 0.5);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

/* Section Padding */
.section-padding {
  padding: 6rem 0;
}

@media (min-width: 768px) {
  .section-padding {
    padding: 8rem 0;
  }
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--color-gold) 0%, #B8962E 100%);
  color: white;
  font-weight: 500;
  box-shadow: var(--shadow-gold);
  transition: var(--transition-smooth);
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 50px -10px rgba(212, 175, 55, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.8);
  color: var(--color-charcoal);
  border: 1px solid var(--color-gold);
  font-weight: 500;
  transition: var(--transition-smooth);
  backdrop-filter: blur(10px);
}
.btn-secondary:hover {
  background: var(--color-gold);
  color: white;
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #22C55E 0%, #16A34A 100%);
  color: white;
  font-weight: 500;
  transition: var(--transition-smooth);
  box-shadow: 0 10px 30px -8px rgba(34, 197, 94, 0.35);
}
.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px -10px rgba(34, 197, 94, 0.45);
}

/* Filter Buttons */
.filter-btn {
  padding: 0.6rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--color-cream-dark);
  color: var(--color-charcoal);
  transition: var(--transition-smooth);
  cursor: pointer;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--color-gold);
  color: white;
  border-color: var(--color-gold);
  box-shadow: var(--shadow-gold);
}

/* Cards */
.service-card {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(245, 230, 204, 0.6);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: var(--transition-smooth);
  backdrop-filter: blur(10px);
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-gold);
  border-color: var(--color-gold);
}
.service-card .card-image {
  overflow: hidden;
}
.service-card .card-image img {
  transition: transform 0.6s ease;
}
.service-card:hover .card-image img {
  transform: scale(1.08);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid rgba(212, 175, 55, 0.2);
  color: var(--color-gold);
  font-size: 0.875rem;
  font-weight: 500;
}

/* Social Button */
.social-btn {
  width: 3rem;
  height: 3rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-cream);
  transition: var(--transition-smooth);
}
.social-btn:hover {
  background: var(--color-gold);
  color: white;
  transform: translateY(-3px);
}

/* Counter Card */
.counter-card {
  transition: var(--transition-smooth);
}
.counter-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

/* Before/After Slider */
.before-after-container {
  position: relative;
  user-select: none;
  touch-action: pan-y;
}
.slider-handle {
  z-index: 20;
}

/* Gallery Masonry */
#gallery-grid > * {
  break-inside: avoid;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-smooth);
}
.gallery-item:hover {
  transform: scale(1.02);
}
.gallery-item img {
  transition: transform 0.6s ease;
}
.gallery-item:hover img {
  transform: scale(1.1);
}
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(43, 43, 43, 0.7), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}
.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

/* Team Cards */
.team-card {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(245, 230, 204, 0.6);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: var(--transition-smooth);
  backdrop-filter: blur(10px);
  text-align: center;
}
.team-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-gold);
}
.team-card img {
  transition: transform 0.6s ease;
}
.team-card:hover img {
  transform: scale(1.05);
}

/* Testimonial Slider */
.testimonial-slide {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(245, 230, 204, 0.6);
  border-radius: var(--radius-2xl);
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  text-align: center;
}

/* Plan Cards */
.plan-card {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(245, 230, 204, 0.6);
  border-radius: var(--radius-2xl);
  padding: 2.5rem;
  transition: var(--transition-smooth);
  backdrop-filter: blur(10px);
  position: relative;
}
.plan-card.featured {
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.15) 0%, rgba(192, 132, 151, 0.1) 100%);
  border: 2px solid var(--color-gold);
  transform: scale(1.03);
}
.plan-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-gold);
}
.plan-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
}

/* Product Cards */
.product-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(245, 230, 204, 0.6);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: var(--transition-smooth);
  backdrop-filter: blur(10px);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold);
}
.product-card .favorite-btn {
  transition: var(--transition-smooth);
}
.product-card .favorite-btn:hover,
.product-card .favorite-btn.active {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

/* FAQ Accordion */
.faq-item {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(245, 230, 204, 0.6);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-smooth);
  backdrop-filter: blur(10px);
}
.faq-item.active {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-gold);
}
.faq-question {
  width: 100%;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-weight: 500;
  color: var(--color-charcoal);
  background: transparent;
  border: none;
  cursor: pointer;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 1.5rem;
}
.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 1.5rem;
}
.faq-icon {
  transition: transform 0.4s ease;
  color: var(--color-gold);
}
.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Booking Form */
.booking-form {
  transition: var(--transition-smooth);
}
.booking-form:hover {
  box-shadow: var(--shadow-gold);
}

/* Lightbox */
#lightbox {
  transition: opacity 0.3s ease;
}
#lightbox:not(.hidden) {
  display: flex;
  opacity: 1;
}
#lightbox.hidden {
  display: none;
  opacity: 0;
}

/* Toast */
#toast {
  backdrop-filter: blur(20px);
}

/* Mobile Menu */
#mobile-menu.open {
  transform: translateX(0);
}

/* Particles Canvas */
#particles-canvas {
  opacity: 0.4;
}

/* Dark Mode */
body.dark-mode {
  --color-cream: #1a1a1a;
  --color-charcoal: #f5f5f5;
  background-color: #1a1a1a;
  color: #f5f5f5;
}
body.dark-mode .glass,
body.dark-mode .service-card,
body.dark-mode .team-card,
body.dark-mode .plan-card,
body.dark-mode .product-card,
body.dark-mode .faq-item,
body.dark-mode .testimonial-slide,
body.dark-mode .counter-card,
body.dark-mode .booking-form {
  background: rgba(30, 30, 30, 0.7);
  border-color: rgba(212, 175, 55, 0.2);
}
body.dark-mode .btn-secondary {
  background: rgba(30, 30, 30, 0.8);
  color: #f5f5f5;
}
body.dark-mode .btn-secondary:hover {
  background: var(--color-gold);
  color: white;
}
body.dark-mode #site-header.scrolled,
body.dark-mode .filter-btn,
body.dark-mode input,
body.dark-mode select,
body.dark-mode .filter-btn {
  background: rgba(30, 30, 30, 0.8);
  color: #f5f5f5;
}
body.dark-mode .filter-btn.active {
  background: var(--color-gold);
  color: white;
}
body.dark-mode input::placeholder,
body.dark-mode select option {
  color: #a1a1a1;
}
body.dark-mode .text-charcoal {
  color: #f5f5f5;
}
body.dark-mode .bg-cream {
  background-color: #1a1a1a;
}
body.dark-mode .bg-gradient-to-b.from-cream,
body.dark-mode .bg-gradient-to-b.from-\[\#F5E6CC\]\/30 {
  --tw-gradient-from: #1a1a1a;
  --tw-gradient-to: #262626;
}

/* Animations */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.animate-fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  #particles-canvas {
    display: none;
  }
}

/* Focus Visible */
:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* Hero Title Spacing */
.hero-title {
  line-height: 1.2 !important;
  letter-spacing: -0.02em;
}

/* Responsive Typography */
@media (max-width: 640px) {
  .hero-title {
    font-size: 2.75rem;
    line-height: 1.25 !important;
  }
}

/* Print Styles */
@media print {
  #site-header,
  #particles-canvas,
  .floating-whatsapp,
  #lightbox,
  #toast,
  #mobile-menu {
    display: none !important;
  }
  .section-padding {
    padding: 2rem 0;
  }
}