/* Header Styles */
.top-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: var(--header-height);
    background-color: transparent;
    z-index: var(--z-header);
    transition: background-color var(--transition-normal),
        box-shadow var(--transition-normal);
}

.top-header.scrolled {
    background-color: rgba(17, 17, 17, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--container-padding);
    max-width: var(--container-max-width);
    margin: 0 auto;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-shrink: 0;
}

.logo-image {
    width: 80px;
    height: auto;
    object-fit: contain;
}

/* Navigation Menu */
.menu-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex: 1;
    margin-left: 60px;
}

.nav-link {
    font-size: 18px;
    font-weight: var(--font-weight-regular);
    color: var(--color-white);
    white-space: nowrap;
    transition: opacity var(--transition-fast);
    position: relative;
    text-decoration: none;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-white);
    transition: width var(--transition-normal);
}

.nav-link:hover {
    opacity: 0.8;
}

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

/* Header CTA Button */
.header-cta {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.btn-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    background-color: transparent;
    color: var(--color-white);
    border: 1.5px solid var(--color-white);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.5px;
    transition: background-color var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-fast);
    cursor: pointer;
}

.btn-header:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-header:active {
    transform: translateY(0);
}

.btn-header .btn-icon {
    width: 16px;
    height: 16px;
    color: currentColor;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 30px;
    height: 24px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .header-container {
        padding: 0 60px;
    }

    .menu-nav {
        gap: 32px;
        margin-left: 40px;
    }

    .btn-header {
        padding: 12px 24px;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 24px;
    }

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

    .menu-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: rgba(17, 17, 17, 0.98);
        backdrop-filter: blur(10px);
        padding: 32px 24px;
        gap: 24px;
        margin-left: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform var(--transition-normal),
            opacity var(--transition-normal),
            visibility var(--transition-normal);
    }

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

    .nav-link {
        font-size: 20px;
        padding: 12px 0;
    }

    .header-cta {
        display: none;
    }

    .logo-image {
        width: 60px;
    }
}

@media (max-width: 480px) {
    .logo-image {
        width: 50px;
    }
}