/**
 * High Leverage Humans - Executive Navigation System
 * Replaces amateur hamburger menu with sophisticated desktop-first navigation
 */

/* EXECUTIVE NAVIGATION - NO MORE HAMBURGER MENU ON DESKTOP */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(17, 17, 17, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 230, 255, 0.1);
    transition: all 0.3s ease;
    will-change: transform, background-color;
    transform: translateZ(0);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Enhanced Logo Section */
.nav-brand {
    flex-shrink: 0;
    z-index: 1001;
}

.nav-brand a {
    display: block;
    transition: all 0.3s ease;
}

.nav-brand .logo {
    width: 160px;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 10px rgba(0, 230, 255, 0.3));
    transition: all 0.3s ease;
}

.nav-brand:hover .logo {
    filter: drop-shadow(0 4px 15px rgba(0, 230, 255, 0.5));
    transform: scale(1.05);
}

/* Executive Desktop Navigation */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    font-family: var(--font-secondary);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-white);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    z-index: 100;
    display: inline-block;
    will-change: transform;
    backface-visibility: hidden;
    transform: translate3d(0, 0, 0);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 230, 255, 0.1), transparent);
    transition: left 0.5s ease;
    z-index: -1;
    pointer-events: none;
}

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

.nav-link:hover {
    color: var(--color-neon-blue);
    background: rgba(0, 230, 255, 0.08);
    border: 1px solid rgba(0, 230, 255, 0.3);
    transform: translate3d(0, -3px, 0);
    box-shadow: 0 6px 20px rgba(0, 230, 255, 0.25);
}

/* Executive CTA Button in Navigation */
.nav-cta {
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-charcoal);
    background: linear-gradient(135deg, var(--color-neon-blue) 0%, var(--color-neon-blue-light) 100%);
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 230, 255, 0.3);
    white-space: nowrap;
    z-index: 10;
    display: block;
    will-change: transform, box-shadow;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.nav-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
    z-index: -1;
    pointer-events: none;
}

.nav-cta:hover::before {
    left: 100%;
}

.nav-cta:hover {
    transform: translateY(-3px) translateZ(0);
    box-shadow: 0 8px 25px rgba(0, 230, 255, 0.4);
}

/* Hide Mobile Toggle on Desktop */
.nav-toggle {
    display: none;
}

/* Enhanced Header Scroll Behavior */
.header.scrolled {
    background: rgba(17, 17, 17, 0.98);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-bottom-color: rgba(0, 230, 255, 0.2);
    transform: translateZ(0);
}

.header.scrolled .nav-container {
    height: 80px;
}

.header.scrolled .nav-brand .logo {
    width: 140px;
}

/* Tablet Responsive (Still Desktop-Style) */
@media (max-width: 1024px) and (min-width: 769px) {
    .nav-container {
        padding: 0 2rem;
    }
    
    .nav-links {
        gap: 2rem;
    }
    
    .nav-link {
        font-size: 0.9rem;
        padding: 0.7rem 1rem;
    }
    
    .nav-cta {
        padding: 0.8rem 1.5rem;
        font-size: 0.85rem;
    }
}

/* Mobile Navigation (Only Below 768px) */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1.5rem;
        height: 70px;
    }
    
    .nav-brand .logo {
        width: 120px;
    }
    
    /* Show mobile toggle only on mobile */
    .nav-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        width: 40px;
        height: 40px;
        background: transparent;
        border: none;
        cursor: pointer;
        z-index: 1001;
    }
    
    .hamburger {
        width: 25px;
        height: 2px;
        background: var(--color-white);
        transition: all 0.3s ease;
        position: relative;
    }
    
    .hamburger::before,
    .hamburger::after {
        content: '';
        position: absolute;
        width: 25px;
        height: 2px;
        background: var(--color-white);
        transition: all 0.3s ease;
    }
    
    .hamburger::before {
        top: -8px;
    }
    
    .hamburger::after {
        bottom: -8px;
    }
    
    /* Mobile Menu */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(17, 17, 17, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 3rem;
        gap: 2rem;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-links {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .nav-link {
        font-size: 1.1rem;
        padding: 1rem 2rem;
        width: 200px;
        text-align: center;
    }
    
    .nav-cta {
        margin-top: 2rem;
        padding: 1rem 2.5rem;
    }
    
    /* Animated hamburger when active */
    .nav-toggle.active .hamburger {
        background: transparent;
    }
    
    .nav-toggle.active .hamburger::before {
        transform: rotate(45deg);
        top: 0;
    }
    
    .nav-toggle.active .hamburger::after {
        transform: rotate(-45deg);
        bottom: 0;
    }
}

/* Extra Small Mobile */
@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
        height: 65px;
    }
    
    .nav-brand .logo {
        width: 100px;
    }
    
    .nav-toggle {
        width: 35px;
        height: 35px;
    }
    
    .hamburger,
    .hamburger::before,
    .hamburger::after {
        width: 20px;
    }
    
    .nav-menu {
        top: 65px;
        height: calc(100vh - 65px);
    }
}

/* Premium Visual Enhancements */
.nav-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--color-neon-blue) 50%, transparent 100%);
    opacity: 0.3;
}

/* Smooth Animations */
.nav-link,
.nav-cta,
.nav-brand .logo {
    will-change: transform;
    backface-visibility: hidden;
}

/* Focus States for Accessibility */
.nav-link:focus,
.nav-cta:focus {
    outline: 2px solid var(--color-neon-blue);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .nav-link {
        border: 1px solid transparent;
    }
    
    .nav-link:hover,
    .nav-link:focus {
        border-color: var(--color-neon-blue);
    }
}