/**
 * navigation.css
 * Premium Fixed Navigation Bar
 */

/* ============================================
   Navigation Bar
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-index-nav);
    height: var(--nav-height);
    padding: 0 var(--container-padding);
    background: var(--nav-bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base) var(--ease-out);
}

.nav--scrolled {
    background: var(--nav-bg-scrolled);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom-color: var(--color-border-light);
}

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


/* ============================================
   Logo
   ============================================ */

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-white);
    border-bottom: none;
}

.nav__logo:hover {
    border-bottom: none;
}

.nav__logo-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.nav__logo-text {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav__logo:hover .nav__logo-text {
    color: var(--color-white);
}


/* ============================================
   Nav Links
   ============================================ */

.nav__links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav__link {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-bottom: none;
    transition: color var(--transition-fast);
    padding: 6px 0;
}

.nav__link:hover {
    color: var(--color-white);
    border-bottom: none;
}

.nav__link--cta {
    padding: 8px 20px;
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    transition: all var(--transition-base) var(--ease-out);
}

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


/* ============================================
   Hero Components
   ============================================ */

.hero__label {
    margin-bottom: var(--spacing-lg);
}

.hero__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.hero__tag {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 6px 16px;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-full);
}

/* Scroll Indicator */
.hero__scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.hero__scroll-text {
    font-family: var(--font-family-primary);
    font-size: 10px;
    font-weight: var(--font-weight-medium);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.hero__scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, var(--color-primary), transparent);
    animation: scroll-line-pulse 2s ease-in-out infinite;
}

@keyframes scroll-line-pulse {

    0%,
    100% {
        opacity: 0.3;
        transform: scaleY(0.6);
        transform-origin: top;
    }

    50% {
        opacity: 1;
        transform: scaleY(1);
    }
}


/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .nav {
        padding: 0 var(--container-padding-mobile);
        height: 60px;
    }

    .nav__links {
        gap: var(--spacing-md);
    }

    .nav__link:not(.nav__link--cta) {
        display: none;
    }

    .hero__scroll-indicator {
        bottom: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .nav {
        padding: 0 var(--spacing-md);
    }
}