/* Header Styles */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.main-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

/* Logo Styles */
.logo {
    flex: 0 0 auto;
    z-index: 1001;
}

.logo a {
    display: block;
    transition: transform 0.3s ease;
}

.logo a:hover {
    transform: scale(1.05);
}

.logo img {
    height: 50px;
    width: auto;
    transition: all 0.3s ease;
}

.main-header.scrolled .logo img {
    height: 40px;
}

/* Navigation Styles */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 30px;
}

.main-nav ul li a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 5px 0;
}

.main-nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.main-nav ul li a:hover {
    color: var(--primary-color);
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: 10px;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-color);
    transition: all 0.3s ease;
    z-index: 1001;
}

.mobile-menu-toggle:hover {
    color: var(--primary-color);
}

.mobile-menu-toggle.active {
    color: var(--primary-color);
}

.mobile-menu-toggle .fas {
    transition: transform 0.3s ease;
}

.mobile-menu-toggle.active .fas {
    transform: rotate(90deg);
}

/* Responsive Styles */
@media (max-width: 992px) {
    .main-nav {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--white);
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        z-index: 999;
        overflow-y: auto;
        visibility: hidden;
    }

    .main-nav.active {
        transform: translateX(0);
        visibility: visible;
    }

    .main-nav ul {
        flex-direction: column;
        align-items: center;
        padding: 40px 20px;
        gap: 20px;
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.3s ease 0.1s;
    }

    .main-nav.active ul {
        opacity: 1;
        transform: translateY(0);
    }

    .main-nav ul li a {
        font-size: 1.2rem;
        padding: 10px 0;
        display: block;
        width: 100%;
        text-align: center;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .main-header.scrolled .main-nav {
        top: 70px;
    }

    body.menu-open {
        overflow: hidden;
    }
}

@media (max-width: 768px) {
    .main-header .container {
        padding: 10px 15px;
    }

    .logo img {
        height: 40px;
    }

    .main-header.scrolled .logo img {
        height: 35px;
    }

    .main-nav {
        top: 70px;
    }

    .main-header.scrolled .main-nav {
        top: 60px;
    }
}

@media (max-width: 480px) {
    .main-header .container {
        padding: 8px 12px;
    }

    .logo img {
        height: 35px;
    }

    .main-header.scrolled .logo img {
        height: 30px;
    }

    .main-nav {
        top: 60px;
    }

    .main-header.scrolled .main-nav {
        top: 50px;
    }
}

/* Animation for Header */
@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

.main-header {
    animation: slideDown 0.5s ease-out;
}