/* nav.css — Navigation header, mobile menu, scroll states */
.nav-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.nav-logo {
    height: 32px;
    width: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-logo img {
    height: 100%;
    width: auto;
}

.nav-links {
    display: none;
    align-items: center;
    gap: 20px;
}

.nav-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-white);
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease;
    opacity: 0.85;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-light-green);
    opacity: 1;
}

.nav-link:focus-visible {
    outline: 2px solid var(--color-dark-green);
    outline-offset: 4px;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lang-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background-color: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-white);
    cursor: pointer;
    transition: all 0.2s ease;
}

.lang-selector:hover {
    background-color: rgba(255, 255, 255, 0.28);
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.lang-selector:focus-visible {
    outline: 2px solid var(--color-light-green);
    outline-offset: 4px;
}

.lang-selector span {
    line-height: 1;
}

.menu-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.18);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
}

.menu-button:hover {
    background-color: rgba(255, 255, 255, 0.28);
    transform: scale(1.05);
}

.menu-button:focus-visible {
    outline: 2px solid var(--color-light-green);
    outline-offset: 4px;
}

.menu-icon {
    width: 20px;
    height: 14px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.menu-icon span {
    width: 100%;
    height: 2px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background-color: var(--color-white);
    z-index: 9999;
    transition: right 0.3s ease;
    overflow-y: auto;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
}

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

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.mobile-menu-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-charcoal);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-menu-close:hover {
    background-color: #1a1a1a;
    transform: scale(1.05);
}

.mobile-menu-close svg {
    width: 20px;
    height: 20px;
    stroke: var(--color-white);
}

.mobile-menu-nav {
    padding: 24px;
}

.mobile-menu-link {
    display: block;
    padding: 16px 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--color-charcoal);
    text-decoration: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: color 0.2s ease;
}

.mobile-menu-link:hover {
    color: var(--color-dark-green);
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

/* Scroll states */
.nav-header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-header.scrolled .nav-link {
    color: var(--color-charcoal);
}

.nav-header.scrolled .nav-link:hover,
.nav-header.scrolled .nav-link:focus {
    color: var(--color-dark-green);
}

.nav-header.scrolled .lang-selector {
    background-color: var(--color-white);
    border-color: rgba(0, 0, 0, 0.1);
    color: var(--color-charcoal);
}

.nav-header.scrolled .lang-selector:hover {
    background-color: var(--color-charcoal);
    color: var(--color-white);
    border-color: var(--color-charcoal);
}

.nav-header.scrolled .menu-button {
    background-color: var(--color-charcoal);
}

.nav-header.scrolled .menu-button:hover {
    background-color: #1a1a1a;
}

.nav-header.scrolled .menu-icon span {
    background-color: var(--color-white);
}

@media (min-width: 768px) {
    .nav-container {
        padding: 20px 40px;
    }

    .nav-logo {
        height: 36px;
    }

    .nav-links {
        display: flex;
    }

    .nav-controls {
        gap: 20px;
    }

    .lang-selector {
        padding: 10px 20px;
        font-size: 15px;
    }

    .menu-button {
        width: 44px;
        height: 44px;
    }
}

@media (min-width: 1024px) {
    .nav-container {
        padding: 24px 80px;
    }

    .nav-logo {
        height: 40px;
    }
}