header {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(15px) saturate(120%);
    -webkit-backdrop-filter: blur(15px) saturate(120%); 
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 85%;
    max-width: 1200px;
    padding: 0.8rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    border-radius: 50px;
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 0 rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.header-scrolled {
    top: 10px;
    padding: 0.6rem 1.8rem;
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 0 rgba(255, 255, 255, 0.4);
}

/* Logo */
.logo span {
    font-family: 'KUV', sans-serif;
    font-size: 2.5rem;
    transform: scale(1.2);
    transform-origin: left center;
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.header-scrolled .logo {
    transform: scale(1);
}

/* Navigation */
nav ul {
    display: flex;
    gap: 2rem;
    list-style: none;
}

nav ul li a {
    color: var(--light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

nav ul li a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 3px;
    background: var(--text);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

nav ul li a:hover::after {
    width: 100%;
}

/* CTA button */
.cta-btn {
    position: relative;
    z-index: 5;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.95);
    padding: 0.6rem 1.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    cursor: pointer;
}

.cta-btn::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -150%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle,
        rgba(255, 255, 255, 0.4) 0%,
        rgba(255, 255, 255, 0.2) 30%,
        transparent 70%
    );
    opacity: 0;
    transition: opacity 0.6s ease;
    pointer-events: none;
}

.cta-btn:hover::before {
    opacity: 1;
}

.cta-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.cta-btn:active {
    transform: translateY(0);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.3);
}


/* Mobile menu button (hamburger) */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--light);
    font-size: 1.5rem;
    cursor: pointer;
    width: 30px;
    height: 25px;
    position: relative;
    z-index: 9999;
}

.mobile-menu-btn span {
    display: block;
    position: absolute;
    width: 100%;
    height: 3px;
    background-color: var(--light);
    top: 50%;
    transform: translateY(-50%);
    transition: all 0.3s ease-in-out;
}

.mobile-menu-btn span::before,
.mobile-menu-btn span::after {
    content: '';
    display: block;
    position: absolute;
    width: 100%;
    height: 3px;
    background-color: var(--light);
    transition: all 0.3s ease-in-out;
}

.mobile-menu-btn span::before {
    top: -8px;
}

.mobile-menu-btn span::after {
    bottom: -8px;
}

.mobile-menu-btn.active span {
    background-color: transparent;
}

.mobile-menu-btn.active span::before {
    top: 0;
    transform: rotate(45deg);
}

.mobile-menu-btn.active span::after {
    bottom: 0;
    top: 0;
    transform: rotate(-45deg);
}

/* Menu overlay */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    z-index: 99;
    display: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.menu-overlay.active {
    display: block;
    opacity: 1;
}

/* Responsive Layouts */
@media (max-width: 1200px) {
    header {
        width: 90%;
    }
}

@media (max-width: 992px) {
    header {
        width: 90%;
        padding: 0.7rem 1.5rem;
    }
    nav ul {
        gap: 1.5rem;
    }
    .cta-btn {
        padding: 0.5rem 1.2rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    header {
        padding: 0.7rem 1.2rem;
    }
    .logo img {
        height: 2.2rem;
    }
    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        transition: 0.5s;
        z-index: 100;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    nav.active {
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 40px;
        right: 0;
        box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.3);
    }
    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    nav ul li a {
        font-size: 1.2rem;
    }
    .mobile-menu-btn {
        display: block;
        background: none;
        border: none;
        color: var(--light);
        font-size: 1.5rem;
        cursor: pointer;
        width: 30px;
        height: 25px;
        position: relative;
        z-index: 101;
    }
}

@media (max-width: 1024) {
    header {
        top: 10px;
        width: 92%;
        padding: 0.6rem 1rem;
        border-radius: 30px;
    }
    .logo img {
        height: 1.8rem;
    }
    .header-scrolled {
        top: 5px;
    }
    header::before {
        width: 25px;
        height: 25px;
        top: -8px;
        left: 5%;
    }
    header::after {
        width: 20px;
        height: 20px;
        bottom: -5px;
        right: 10%;
    }
    .cta-btn {
        display: none;
    }
    nav ul {
        margin-bottom: 2rem;
    }
    nav ul::after {
        content: '';
        display: block;
        width: 50px;
        height: 1px;
        background-color: rgba(255, 255, 255, 0.2);
        margin: 1rem auto;
    }
    nav .mobile-cta-btn {
        display: block;
        background: rgba(255, 255, 255, 0.1);
        color: rgba(255, 255, 255, 0.95);
        padding: 0.8rem 2rem;
        border-radius: 30px;
        text-decoration: none;
        font-weight: 600;
        margin-top: 1rem;
        border: 1px solid rgba(255, 255, 255, 0.2);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.3);
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    }
}