/* Navigation Styles */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    min-height: 64px;
    background: rgba(9, 35, 39, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(26, 74, 82, 0.6);
    z-index: var(--z-fixed);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
    background: rgba(9, 35, 39, 0.92);
    border-bottom-color: var(--color-border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--space-8);
}

.nav-logo {
    flex-shrink: 0;
}

.nav-logo a {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    padding: var(--space-1) 0;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: var(--font-weight-black);
    letter-spacing: 0.12em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: opacity var(--transition-fast);
}

.nav-logo a:hover .logo-text {
    opacity: 0.9;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    flex: 1;
    justify-content: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links li {
    display: flex;
    align-items: center;
}

.nav-link {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    text-decoration: none;
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-md);
    transition: color var(--transition-base), background var(--transition-base);
    position: relative;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.nav-link.active {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.nav-link.active::before {
    content: '';
    position: absolute;
    left: var(--space-5);
    right: var(--space-5);
    bottom: var(--space-2);
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-shrink: 0;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-primary);
    transition: background var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.06);
}

.mobile-menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-content {
        gap: var(--space-4);
    }

    .nav-links {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background: rgba(9, 35, 39, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: var(--space-4);
        gap: 0;
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
        transform: translateY(-100%);
        visibility: hidden;
        opacity: 0;
        pointer-events: none;
        transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
    }

    .nav-links.active {
        transform: translateY(0);
        visibility: visible;
        opacity: 1;
        pointer-events: all;
    }

    .nav-links li {
        border-bottom: 1px solid rgba(26, 74, 82, 0.5);
    }

    .nav-links li:last-child {
        border-bottom: none;
    }

    .nav-link {
        width: 100%;
        padding: var(--space-4) var(--space-4);
        border-radius: var(--radius-md);
    }

    .nav-link.active::before {
        left: var(--space-4);
        right: auto;
        width: 4px;
        height: 100%;
        bottom: 0;
        top: 0;
    }

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

    .nav-actions .btn {
        display: none;
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 1.5rem;
        letter-spacing: 0.1em;
    }

    .nav-actions {
        gap: var(--space-2);
    }
}