.filter-btn.active {
    opacity: 1 !important;
    transform: scale(1.05);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.9), 0 4px 12px rgba(0, 0, 0, 0.3);
    border-width: 3px !important;
}

.filter-btn {
    transition: all 0.2s ease;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.max-w-8xl {
    max-width: 95rem;
}

nav {
    transition: all 0.3s ease-in-out;
}

nav.scrolled {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

nav.scrolled .nav-container {
    height: 4rem !important;
}

nav.scrolled .logo-img {
    height: 3rem !important;
    width: 3rem !important;
}

.nav-link,
.mobile-nav-link {
    color: #fb923c;
    transition: color 0.2s ease-in-out;
}

.nav-link:hover,
.mobile-nav-link:hover,
.nav-link.is-active,
.mobile-nav-link.is-active {
    color: #f04e3e;
}

.mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-in-out;
}

.mobile-menu.open {
    max-height: 500px;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #4F46E5;
    margin: 5px 0;
    transition: 0.3s;
}

.hamburger.open span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
}

.hamburger.open span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.wave-bottom {
    position: relative;
    padding-bottom: 60px;
}

.wave-bottom::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 100px;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120" preserveAspectRatio="none"><path d="M0,50 C200,20 400,80 600,50 C800,20 1000,80 1200,50 L1200,120 L0,120 Z" fill="white"/></svg>') bottom center no-repeat;
    background-size: 100% 100%;
}

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

.animate-bounce {
    animation: pku-bounce 2s infinite;
}

.scroll-down-button {
    z-index: 20;
}

.transition-max-height {
    transition: max-height 0.5s ease-in-out;
}

.prose img {
    margin-left: auto;
    margin-right: auto;
}