.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 9999;
    transition: all 0.3s ease;
    text-decoration: none;
}

.whatsapp-float:hover {
    background: #1ebe57;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.whatsapp-float svg {
    width: 32px;
    height: 32px;
    fill: #fff;
}

@media (max-width: 992px) {
    .section {
        padding: 60px 0;
    }
    .section-title {
        font-size: 2rem;
    }
    .hero-box h1 {
        font-size: 2.2rem;
    }
    .premium-hero h1 {
        font-size: 2.4rem;
    }
    .split-content h1 {
        font-size: 2.2rem;
    }
    .profile-text h2,
    .anatomy-text h2 {
        font-size: 2rem;
    }
    .page-header h1 {
        font-size: 2.4rem;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 45px 0;
    }
    .section-title {
        font-size: 1.6rem;
    }
    .lead-text {
        font-size: 1rem;
    }
    .hero-slider {
        min-height: 450px;
        height: auto;
        margin-top: 70px;
    }
    .hero-slide {
        position: relative;
        min-height: 450px;
    }
    .hero-box {
        margin: 0 15px;
        padding: 30px 20px;
    }
    .hero-box h1 {
        font-size: 1.7rem;
    }
    .hero-box h2 {
        font-size: 1.05rem;
        margin-bottom: 20px;
    }
    .page-header {
        padding: 60px 0;
        margin-top: 70px;
    }
    .page-header h1 {
        font-size: 1.8rem;
    }
    .page-header-split {
        margin-top: 70px;
    }
    .split-content {
        padding: 30px 20px;
    }
    .split-content h1 {
        font-size: 1.8rem;
    }
    .premium-hero {
        margin-top: 70px;
        min-height: 350px;
    }
    .premium-hero h1 {
        font-size: 1.8rem;
    }
    .premium-hero p {
        font-size: 1rem;
    }
    .profile-text h2,
    .anatomy-text h2 {
        font-size: 1.6rem;
    }
    .profile-text p {
        font-size: 1rem;
    }
    .anatomy-image img {
        height: 300px;
    }
    .btn {
        padding: 12px 24px;
        font-size: 0.85rem;
    }
    .reveal-card {
        height: auto;
        min-height: 200px;
    }
    .reveal-card-front,
    .reveal-card-back {
        position: relative;
        transform: none;
    }
    .reveal-card-front {
        padding: 25px 20px;
    }
    .reveal-card-back {
        display: none;
    }
    .reveal-card:hover .reveal-card-front {
        transform: none;
        opacity: 1;
    }
    .reveal-card.mobile-active .reveal-card-front {
        display: none;
    }
    .reveal-card.mobile-active .reveal-card-back {
        display: flex;
        transform: none;
        position: relative;
    }
    .stat-number {
        font-size: 2rem;
    }
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
    .whatsapp-float svg {
        width: 26px;
        height: 26px;
    }
    .dropdown-menu {
        max-height: 0;
        overflow: hidden;
        display: block;
        transition: max-height 0.3s ease;
    }
    .dropdown.open .dropdown-menu {
        max-height: 200px;
    }
    .dropdown:hover .dropdown-menu,
    .dropdown:active .dropdown-menu {
        max-height: 0;
    }
    .dropdown.open:hover .dropdown-menu,
    .dropdown.open:active .dropdown-menu {
        max-height: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        width: 92%;
    }
    .section-title {
        font-size: 1.4rem;
        letter-spacing: 0.5px;
    }
    .hero-box h1 {
        font-size: 1.4rem;
    }
    .hero-box h2 {
        font-size: 0.95rem;
    }
    .page-header h1,
    .split-content h1,
    .premium-hero h1 {
        font-size: 1.5rem;
    }
    .profile-text h2,
    .anatomy-text h2 {
        font-size: 1.4rem;
    }
    .info-card {
        padding: 35px 20px;
    }
    .testimonial-card {
        padding: 25px 20px;
    }
    .contact-info-panel {
        padding: 30px 20px;
    }
    .logo-text strong {
        font-size: 1rem;
    }
    .logo-text span {
        font-size: 0.7rem;
    }
    .logo-icon {
        font-size: 2rem;
    }
    .logo-img {
        width: 32px;
        height: 32px;
    }
}