/* =================================
   Desktop Header Styles
   ================================= */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.nav-logo a {
    display: inline-block;
}

.nav-logo img {
    max-width: 148px;
    height: auto;
    transition: transform 0.3s ease;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 25px;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
    text-transform: capitalize;
    position: relative;
    padding: 10px 0;
    display: inline-block;
    transition: color 0.3s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-menu-main {
    display: flex;
    align-items: center;
    gap: 25px;
}

/* =================================
   Mobile Header Styles
   ================================= */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    padding: 12px 0;
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                background-color 0.4s ease,
                box-shadow 0.4s ease;
    will-change: transform, background-color, box-shadow;
}

@keyframes headerSlideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.mobile-header.animate {
    animation: headerSlideDown 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.mobile-navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    height: 60px;
}

.mobile-logo img {
    max-width: 100px;
    height: auto;
}

.mobile-menu-toggle {
    z-index: 1002;
}

.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
    background: transparent;
    border: none;
    padding: 0;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.hamburger.menu-open {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-dark);
    transition: all 0.3s ease;
    transform-origin: center;
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                visibility 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, visibility;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 400px;
    height: 100vh;
    background-color: white;
    padding: 30px;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    transition: right 0.4s ease;
    z-index: 1001;
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.mobile-close-btn {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-dark);
    cursor: pointer;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Mobile Navigation */
.mobile-nav {
    list-style: none;
    padding: 0;
    margin: 20px 0 0;
    flex-grow: 1;
}

.mobile-nav li {
    margin: 8px 0;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.mobile-menu.active .mobile-nav li {
    opacity: 1;
    transform: translateX(0);
    transition-delay: calc(0.05s * var(--i, 0));
}

.mobile-nav a {
    display: block;
    padding: 14px 25px;
    color: #333;
    text-decoration: none;
    font-size: 17px;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 6px;
    position: relative;
    overflow: hidden;
}

.mobile-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color, #000);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-nav a:hover,
.mobile-nav a:focus,
.mobile-nav a.active {
    color: var(--primary-color, #000);
    background-color: rgba(0, 0, 0, 0.03);
    padding-left: 30px;
}

.mobile-nav a:hover::after,
.mobile-nav a:focus::after,
.mobile-nav a.active::after {
    transform: scaleY(1);
}

.mobile-nav .btn {
    display: inline-block;
    margin-top: 10px;
}

/* =================================
   Responsive Styles
   ================================= */
@media (max-width: 992px) {
    .nav-menu {
        gap: 15px;
    }
    
    .nav-logo img {
        max-width: 100px;
    }
}

@media (max-width: 768px) {
    .desktop-header {
        display: none;
    }
    
    .mobile-header {
        display: block;
    }
    
    .mobile-nav .btn {
        width: 100%;
        text-align: center;
        margin-top: 20px;
    }
}

@media (max-width: 480px) {
    .mobile-logo img {
        max-width: 80px;
    }
    
    .mobile-menu {
        width: 100%;
        max-width: 300px;
    }
    
    .hamburger {
        width: 25px;
    }
}