.header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
}

.header-content {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    position: relative;
    gap: var(--spacing-2xl);
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    height: 50px;
    width: 50px;
    display: block;
    flex-shrink: 0;
}

.logo-img {
    height: 90px;
    width: auto;
    display: block;
    object-fit: contain;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: nowrap;
}

.nav-link {
    font-weight: 500;
    color: var(--color-text-main);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-cta {
    margin-left: var(--spacing-md);
}

.mobile-menu-btn {
    display: none;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    padding: var(--spacing-xs);
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
    position: absolute;
    left: var(--spacing-md);
}

/* Footer */
.footer {
    background: var(--color-secondary);
    color: white;
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.footer-logo-icon {
    height: 50px;
    width: 50px;
    display: block;
    flex-shrink: 0;
}

.footer-logo-img {
    height: 90px;
    width: auto;
    display: block;
    object-fit: contain;
}

.footer-desc {
    color: #a0a0a0;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.social-icons {
    display: flex;
    gap: var(--spacing-md);
}

.social-icons a {
    color: white;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.social-icons a:hover {
    opacity: 1;
}

.footer-col h4 {
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-lg);
}

.footer-col ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-col ul li a {
    color: #a0a0a0;
}

.footer-col ul li a:hover {
    color: white;
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: #a0a0a0;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: #707070;
    font-size: var(--font-size-sm);
}

/* Tablet */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }

    .nav {
        gap: var(--spacing-sm);
    }

    .nav-link {
        font-size: var(--font-size-sm);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* Mobile */
@media (max-width: 768px) {
    .header {
        height: 70px;
    }

    .mobile-menu-btn {
        display: block;
        padding: var(--spacing-xs);
        background: transparent;
        border: none;
        cursor: pointer;
        z-index: 1001;
        position: absolute;
        left: var(--spacing-md);
    }
    
    .header-content {
        justify-content: center;
    }
    
    .nav {
        margin-left: 0;
    }
    
    .logo {
        margin: 0;
    }

    .logo-icon {
        height: 40px;
        width: 40px;
    }

    .logo-img {
        height: 65px;
    }

    .footer-logo-icon {
        height: 40px;
        width: 40px;
    }

    .footer-logo-img {
        height: 65px;
    }

    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-lg);
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-150%);
        transition: transform var(--transition-normal);
        z-index: 999;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .nav-open {
        transform: translateY(0);
        box-shadow: var(--shadow-lg);
    }

    .nav-link {
        width: 100%;
        padding: var(--spacing-md);
        text-align: left;
        border-bottom: 1px solid var(--color-border);
        font-size: var(--font-size-base);
    }

    .nav-link:last-of-type {
        border-bottom: none;
    }

    .nav-cta {
        margin-left: 0;
        margin-top: var(--spacing-md);
        width: 100%;
        text-align: center;
    }

    .footer {
        padding: var(--spacing-2xl) 0 var(--spacing-lg);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-col {
        text-align: center;
    }

    .footer-col ul {
        text-align: center;
    }

    .social-icons {
        justify-content: center;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .header {
        height: 60px;
    }

    .logo-icon {
        height: 35px;
        width: 35px;
    }

    .logo-img {
        height: 55px;
    }

    .nav {
        top: 60px;
        padding: var(--spacing-md);
    }

    .footer-logo-icon {
        height: 35px;
        width: 35px;
    }

    .footer-logo-img {
        height: 55px;
    }

    .footer {
        padding: var(--spacing-xl) 0 var(--spacing-md);
    }

    .footer-desc {
        font-size: var(--font-size-xs);
    }

    .footer-col h4 {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-md);
    }

    .footer-col ul li {
        font-size: var(--font-size-sm);
    }

    .contact-list li {
        font-size: var(--font-size-sm);
        flex-wrap: wrap;
        justify-content: center;
    }
}