/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: transparent;
    backdrop-filter: blur(0px);
    transition: all var(--transition-normal);
    z-index: var(--z-navbar);
    padding: var(--spacing-md) 0;
}

.navbar.scrolled {
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 102, 0, 0.1);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo Section */
.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 32px;
    height: 32px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent-orange);
    clip-path: polygon(0 0, 70% 0, 100% 30%, 100% 100%, 30% 100%, 0 70%);
    transform: rotate(45deg);
}

.logo-icon::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 2px;
    background: var(--accent-orange);
    transform: rotate(-45deg);
}

.logo-text {
    font-family: var(--font-primary);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 1px;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-item {
    position: relative;
}

.nav-link {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: all var(--transition-normal);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-orange);
    transition: width var(--transition-normal);
}

.nav-link:hover {
    color: var(--accent-orange);
}

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

.nav-link.active {
    color: var(--accent-orange);
}

.nav-link.active::before {
    width: 100%;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
    transform-origin: center;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(26, 26, 26, 0.95);
        backdrop-filter: blur(10px);
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-lg) 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-item {
        width: 100%;
        text-align: center;
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-item:last-child {
        border-bottom: none;
    }
    
    .nav-link {
        font-size: var(--font-size-base);
        padding: var(--spacing-sm) var(--spacing-lg);
        display: block;
        width: 100%;
    }
    
    .logo-text {
        font-size: var(--font-size-lg);
    }
    
    .logo-icon {
        width: 28px;
        height: 28px;
    }
    
    .logo-icon::before {
        width: 18px;
        height: 18px;
    }
    
    .logo-icon::after {
        width: 10px;
    }
}

/* Tablet Navigation */
@media (max-width: 1024px) and (min-width: 769px) {
    .nav-menu {
        gap: var(--spacing-lg);
    }
    
    .nav-link {
        font-size: var(--font-size-xs);
    }
}

/* Navigation Animation on Scroll */
@keyframes navSlideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

.navbar {
    animation: navSlideDown 0.5s ease forwards;
}

/* Geometric Navigation Indicators */
.nav-item::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -15px;
    width: 6px;
    height: 6px;
    background: var(--accent-orange);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    transform: translateY(-50%) scale(0);
    transition: transform var(--transition-normal);
}

.nav-item:hover::before,
.nav-item .nav-link.active + ::before {
    transform: translateY(-50%) scale(1);
}

/* Enhanced Logo Animation */
.logo-icon {
    transition: transform var(--transition-normal);
}

.logo-icon:hover {
    transform: rotate(180deg);
}

/* Navigation Backdrop */
.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 102, 0, 0.05) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.navbar.scrolled::before {
    opacity: 1;
}