/**
 * ==============================================
 * NAVIGATION COMPONENT (BEM)
 * ==============================================
 * Block: .nav
 * Elements: __content, __logo, __links, __link
 * Modifiers: --cv, --active
 */

.nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: var(--space-lg) var(--space-3xl);
    z-index: var(--z-fixed);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(0, 0, 0, 0.8);
    border-bottom: 1px solid var(--color-border-light);
    transform: translateY(-100%);
    animation: navSlideDown 1s ease 0.5s forwards;
}

@keyframes navSlideDown {
    to {
        transform: translateY(0);
    }
}

.nav__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

/* ===== Logo ===== */
.nav__logo {
    font-size: var(--text-xl);
    font-weight: 800;
    font-family: var(--font-heading);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    padding: var(--space-sm) 0;
    transition: filter var(--transition-base);
    min-width: 2.5rem;
    display: inline-block;
}

.nav__logo:hover {
    filter: drop-shadow(0 0 20px rgba(250, 204, 21, 0.5));
}

.nav__logo:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

/* ===== Links Container ===== */
.nav__links {
    display: flex;
    gap: var(--space-xl);
    list-style: none;
}

/* ===== Individual Link ===== */
.nav__link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 500;
    transition: color var(--transition-base);
    position: relative;
    padding: var(--space-sm) 0;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

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

.nav__link:hover::after {
    width: 100%;
}

.nav__link:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

/* ===== CV Link Modifier ===== */
.nav__link--cv {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.nav__link--cv:hover {
    opacity: 0.8;
}

.nav__link--cv::after {
    background: var(--color-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav {
        padding: var(--space-md) var(--space-lg);
    }
    
    .nav__links {
        display: none;
    }
}