body {
            box-sizing: border-box;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        .hero-bg {
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.8), rgba(44, 44, 44, 0.6)), 
                        url('https://assets.vogue.com/photos/670e1cec79c27e12bc78061f/master/w_2560%2Cc_limit/GS1723518.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }
        
        .gradient-btn {
            background: linear-gradient(135deg, #E63946, #FF6B35);
            transition: all 0.3s ease;
        }
        
        .gradient-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(230, 57, 70, 0.4);
        }
        
        .nav-link {
            position: relative;
            overflow: hidden;
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: -100%;
            width: 100%;
            height: 2px;
            background: #E63946;
            transition: left 0.3s ease;
        }
        
        .nav-link:hover::after {
            left: 0;
        }
        
        .page {
            display: none;
            opacity: 0;
            transition: opacity 0.5s ease;
        }
        
        .page.active {
            display: block;
            opacity: 1;
        }
        
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(88, 24, 24, 0.8);
            z-index: 1000;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .modal.active {
            display: flex;
            opacity: 1;
        }
        
        .card-flip {
            perspective: 1000px;
        }
        
        .card-inner {
            position: relative;
            width: 100%;
            height: 100%;
            text-align: center;
            transition: transform 0.6s;
            transform-style: preserve-3d;
        }
        
        .card-flip:hover .card-inner {
            transform: rotateY(180deg);
        }
        
        .card-front, .card-back {
            position: absolute;
            width: 100%;
            height: 100%;
            backface-visibility: hidden;
            border-radius: 12px;
        }
        
        .card-back {
            transform: rotateY(180deg);
        }
        
        .floating-particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: #E63946;
            border-radius: 50%;
            animation: float 6s ease-in-out infinite;
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.7; }
            50% { transform: translateY(-20px) rotate(180deg); opacity: 1; }
        }
        
        .stats-counter {
            font-size: 3rem;
            font-weight: 800;
            color: #E63946;
        }
        
        @media (max-width: 768px) {
            .stats-counter {
                font-size: 2rem;
            }
        }
    .hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.1);
  animation: fadeKenburns 24s infinite ease-in-out;
  z-index: 1;
}
.hero-bg.bg1 { background-image: url('https://web-back.perfectgym.com/sites/default/files/styles/460x/public/women-only%20gym%20%2811%29.png?itok=9tunJNxR'); animation-delay: 0s; }
.hero-bg.bg2 { background-image: url('https://images.unsplash.com/photo-1510626176961-4b57d4fbad03?auto=format&fit=crop&w=1600&q=80'); animation-delay: 8s; }
.hero-bg.bg3 { background-image: url('https://thewonderwomen.com/wp-content/uploads/2024/09/Untitled-design-3.png'); animation-delay: 16s; }

/* Ken Burns Fade */
@keyframes fadeKenburns {
  0% { opacity: 0; transform: scale(1.1); }
  10% { opacity: 1; transform: scale(1); }
  33% { opacity: 1; transform: scale(1.05); }
  43% { opacity: 0; transform: scale(1.1); }
  100% { opacity: 0; transform: scale(1.1); }
}

/* Floating Particles */
.floating-particle {
  width: 25px;
  height: 25px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  position: absolute;
  animation: float 8s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: translateY(0) translateX(0); opacity: 0.6; }
  50% { transform: translateY(-25px) translateX(15px); opacity: 1; }
}

/* Text Animations */
.slide-in {
  display: inline-block;
  opacity: 0;
  transform: translateY(30px);
  animation: slideIn 1s forwards ease-out;
}
.slide-in.delay-1 { animation-delay: 0.5s; }
@keyframes slideIn {
  to { opacity: 1; transform: translateY(0); }
}

/* Typewriter Text */
.typewriter {
  display: inline-block;
  border-right: 2px solid rgba(255,255,255,0.8);
  white-space: nowrap;
  overflow: hidden;
}
.typewriter.delay-2 { animation-delay: 1s; }

/* Fade Up for Paragraph and Buttons */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s forwards ease-out;
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}