/* ========================================
   NAVIGATION COMPONENT
   Springs AI Solutions
   ======================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: var(--z-nav);
    background: var(--color-bg-glass);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.nav-logo:hover {
    transform: scale(1.02);
}

.logo-text {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: var(--weight-bold);
    color: var(--color-text-primary);
    letter-spacing: var(--tracking-wide);
}

.logo-dot {
    color: var(--color-primary-400);
    text-shadow: var(--text-glow-subtle);
}

/* Navigation Links */
.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    position: relative;
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-text-secondary);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    padding: var(--spacing-2) 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary-400);
    box-shadow: var(--glow-subtle);
    transition: width var(--transition-normal);
}

.nav-link:hover {
    color: var(--color-primary-400);
    text-shadow: none;
}

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

.nav-link.active {
    color: var(--color-primary-400);
}

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

/* CTA Button */
.nav-cta {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-bg-deep);
    background: var(--color-primary-400);
    border: none;
    padding: var(--spacing-2) var(--spacing-5);
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    transition: all var(--transition-fast);
    box-shadow: var(--glow-subtle);
}

.nav-cta:hover {
    background: var(--color-primary-300);
    box-shadow: var(--glow-medium);
    transform: translateY(-1px);
}

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.nav-toggle:hover {
    border-color: var(--color-primary-400);
}

.hamburger {
    position: relative;
    width: 20px;
    height: 2px;
    background: var(--color-primary-400);
    transition: all var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--color-primary-400);
    transition: all var(--transition-fast);
}

.hamburger::before {
    top: -6px;
}

.hamburger::after {
    top: 6px;
}

/* Toggle Open State */
.nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

/* Mobile Styles */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        background: var(--color-bg-deep);
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-4);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-link {
        display: block;
        padding: var(--spacing-4);
        text-align: center;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-link::after {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .nav-links .nav-cta-mobile {
        display: block;
        width: 100%;
        margin-top: var(--spacing-4);
        padding: var(--spacing-4);
        text-align: center;
        background: var(--color-primary-400);
        color: var(--color-bg-deep);
        border-radius: var(--radius-sm);
    }
}