/* Modern Navigation - Complete Redesign */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-sm) 0;
    background: var(--nav-bg);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    z-index: 1000;
    transition: all var(--transition-normal);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    padding: var(--spacing-xs) 0;
    background: var(--nav-bg-solid);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo - Modern Design */
.logo {
    display: flex;
    align-items: center;
    z-index: 1001;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.logo-img {
    height: 50px;
    width: auto;
    transition: all var(--transition-bounce);
    filter: drop-shadow(0 2px 8px rgba(59, 130, 246, 0.3));
}

.logo:hover .logo-img {
    transform: translateY(-2px) scale(1.03);
    filter: drop-shadow(0 4px 12px rgba(59, 130, 246, 0.5));
}

@keyframes glow {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.2); }
}

/* Navigation Links - Modern Style */
.nav-menu {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    list-style: none;
}

.nav-menu li {
    position: relative;
}

.nav-link {
    color: var(--text-secondary);
    position: relative;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-normal);
    display: inline-block;
    border-radius: var(--radius-md);
}

.nav-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-from);
    border-radius: var(--radius-md);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transform: translateX(-50%);
    transition: width var(--transition-normal);
    border-radius: var(--radius-full);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link:hover::before,
.nav-link.active::before {
    opacity: 1;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 24px;
}

/* CTA Button - Modern Gradient */
.nav-cta {
    padding: var(--spacing-sm) var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-bounce);
    margin-left: var(--spacing-lg);
    box-shadow: var(--shadow-primary);
    border: 1px solid var(--primary-light);
}

.nav-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.nav-cta::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.4), transparent);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    border-radius: 50%;
}

.nav-cta:hover::before {
    opacity: 1;
}

.nav-cta:hover::after {
    width: 300px;
    height: 300px;
}

.nav-cta:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 30px rgba(100, 116, 139, 0.5);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    padding: var(--spacing-xs);
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all var(--transition-normal);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Responsive */
@media (max-width: 968px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-secondary);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px var(--spacing-xl) var(--spacing-xl);
        gap: var(--spacing-lg);
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.2);
        transition: right var(--transition-normal);
        border-left: 1px solid var(--border-color);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        width: 100%;
        padding: var(--spacing-sm) 0;
        font-size: var(--font-size-lg);
    }

    .nav-cta {
        width: 100%;
        text-align: center;
        margin-top: var(--spacing-md);
    }
}

/* Overlay for mobile menu */
.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.nav-overlay.active {
    display: block;
    opacity: 1;
}