/* === FLOATING NAVIGATION === */

.floating-nav {
    position: fixed;
    top: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1140px;
    background-color: rgba(var(--card-bg), 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-navbar);
    padding: var(--space-sm) var(--space-lg);
    transition: var(--transition-all);
    border: 1px solid var(--border-color);
}

.floating-nav .navbar-brand {
    font-weight: var(--font-weight-bold);
    color: var(--primary);
}

.floating-nav .nav-link {
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
    padding: var(--space-sm) var(--space-base);
    border-radius: var(--radius-full);
    transition: var(--transition-all);
    position: relative;
}

.floating-nav .nav-link:hover {
    color: var(--primary);
    background: var(--gradient-bg-subtle);
}

.floating-nav .nav-link.active {
    color: var(--primary);
    background: var(--gradient-bg);
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.15);
    font-weight: var(--font-weight-semibold);
    animation: activeLink 3s ease-in-out infinite;
    position: relative;
}

.floating-nav .nav-link.active::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-full);
    padding: 2px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
    display: inline-block;
    font-size: var(--font-size-base);
    margin-bottom: var(--space-sm);
    pointer-events: none;
}

.floating-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    transition: var(--transition-all);
}

.floating-nav .nav-link.active:hover::after {
    width: 50px;
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.3);
}

@keyframes activeLink {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-2px); }
}

/* Sign In Button */
.floating-nav .signin-btn {
    background: var(--gradient-primary);
    color: white !important;
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-primary);
    padding: var(--space-sm) var(--space-lg);
    margin-right: var(--space-sm);
    transition: var(--transition-all);
    border: none;
    outline: none;
}

.floating-nav .signin-btn:hover,
.floating-nav .signin-btn:focus {
    background: linear-gradient(90deg, var(--secondary), var(--primary));
    color: white !important;
    box-shadow: var(--shadow-primary-lg);
    text-decoration: none;
}

/* Hamburger Menu */
.navbar-toggler {
    border: none;
    padding: var(--space-sm);
    transition: var(--transition-all);
    background: transparent;
}

.navbar-toggler:focus {
    box-shadow: none;
    outline: none;
}

.navbar-light .navbar-toggler-icon {
    background-image: none;
    position: relative;
    transition: var(--transition-all);
}

.navbar-light .navbar-toggler-icon::before,
.navbar-light .navbar-toggler-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--gradient-primary);
    left: 4px;
    transition: var(--transition-all);
}

.navbar-light .navbar-toggler-icon::before {
    top: 8px;
}

.navbar-light .navbar-toggler-icon::after {
    bottom: 8px;
}

/* Active hamburger state */
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
    transform: rotate(45deg);
    top: 11px;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
    transform: rotate(-45deg);
    bottom: 11px;
}

/* Dark Mode Adjustments */
[data-theme="dark"] .floating-nav .nav-link.active {
    background: var(--gradient-bg-strong);
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.3);
}

[data-theme="dark"] .navbar-light .navbar-toggler-icon::before,
[data-theme="dark"] .navbar-light .navbar-toggler-icon::after {
    background: var(--gradient-primary);
}