header {
    background-color: var(--white);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.85);
    border-bottom: 1px solid rgba(255, 111, 0, 0.1);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    position: relative;
}

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition);
    z-index: 1001;
}

.logo:hover {
    transform: translateY(-2px);
}

.logo img {
    height: 2.5rem;
    width: auto;
    transition: var(--transition);
}

.logo:hover img {
    transform: rotate(-5deg) scale(1.05);
}

.logo span {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    font-weight: 600;
    position: relative;
    color: var(--dark-color);
    padding: 0.5rem 0;
    font-size: 1.05rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link i {
    font-size: 0.9rem;
}

.nav-link:before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
    border-radius: 2px;
}

.nav-link:hover:before {
    width: 100%;
}

.nav-link:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.nav-item .btn {
    margin-left: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(13, 71, 161, 0.2);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.nav-item .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(13, 71, 161, 0.3);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--primary-color);
    cursor: pointer;
    z-index: 1001;
    transition: var(--transition);
    padding: 0.5rem;
    border-radius: 50%;
    aspect-ratio: 1/1;
}

.mobile-menu-btn:hover {
    background-color: rgba(255, 111, 0, 0.1);
    transform: rotate(90deg);
}

/* Mobile Menu Styles */
@media (max-width: 992px) {
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem 2rem;
        transition: all 0.5s cubic-bezier(0.77, 0.2, 0.05, 1);
        box-shadow: 10px 0 50px rgba(0, 0, 0, 0.15);
        gap: 1.5rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        padding: 0.75rem 0;
        width: 100%;
        font-size: 1.1rem;
    }
    
    .nav-item .btn {
        margin-left: 0;
        width: 100%;
        justify-content: center;
        margin-top: 1rem;
    }
    
    .nav-link:before {
        height: 3px;
        bottom: 0.5rem;
    }
}

/* Header Scroll Effects */
header.scrolled {
    padding: 0.5rem 0;
    backdrop-filter: blur(16px);
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

header.scrolled .logo {
    font-size: 1.5rem;
}

header.scrolled .logo img {
    height: 2rem;
}

/* Active Link Styles */
.nav-link.active {
    color: var(--primary-color);
    font-weight: 700;
}

.nav-link.active:before {
    width: 100%;
}

/* Dropdown Menu Styles (if needed) */
.nav-item.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white);
    border-radius: 0.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.nav-item.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 0.5rem 1.5rem;
    color: var(--dark-color);
    transition: var(--transition);
}

.dropdown-item:hover {
    color: var(--primary-color);
    background-color: rgba(255, 111, 0, 0.05);
    padding-left: 1.75rem;
}

/* Responsive Adjustments */
@media (max-width: 576px) {
    .logo span {
        font-size: 1.5rem;
    }
    
    .logo img {
        height: 2rem;
    }
    
    header.scrolled .logo span {
        font-size: 1.3rem;
    }
    
    header.scrolled .logo img {
        height: 1.8rem;
    }
}