/* ====================================
   Navigation Styles
   ==================================== */

/* ===== Desktop Sidebar Navigation ===== */

.sidebar-nav {
    grid-area: sidebar;
    background-color: var(--color-bg-elevated);
    border-right: 1px solid var(--color-bg-secondary);
    padding: var(--space-6) 0;
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    overflow-y: auto;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.nav-item {
    width: 100%;
}

.nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    margin: 0 var(--space-3);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    background-color: var(--color-accent-gold-light);
    color: var(--color-accent-gold);
}

.nav-link:hover .nav-icon {
    color: var(--color-accent-gold);
    transform: scale(1.05);
}

/* Active state */
.nav-item.active .nav-link {
    background-color: var(--color-accent-gold-light);
    color: var(--color-accent-gold);
}

.nav-item.active .nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 70%;
    background: linear-gradient(180deg, var(--color-accent-gold) 0%, var(--color-accent-gold-hover) 100%);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.nav-item.active .nav-icon {
    color: var(--color-accent-gold);
}

.nav-icon {
    width: 40px;
    height: 40px;
    transition: all var(--transition-fast);
}

.nav-label {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    text-align: center;
}

/* ===== Mobile Bottom Navigation ===== */

.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg-elevated);
    border-top: 1px solid var(--color-bg-secondary);
    height: var(--mobile-nav-height);
    z-index: var(--z-fixed);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.mobile-nav-list {
    list-style: none;
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 100%;
    padding: 0 var(--space-2);
}

.mobile-nav-item {
    flex: 1;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-text-secondary);
    text-decoration: none;
    position: relative;
    transition: all var(--transition-fast);
}

.mobile-nav-link:active {
    transform: scale(0.95);
}

.mobile-nav-item.active .mobile-nav-link {
    color: var(--color-accent-gold);
}

.mobile-nav-item.active .mobile-nav-link::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-gold) 0%, var(--color-accent-gold-hover) 100%);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.mobile-nav-icon {
    width: 28px;
    height: 28px;
    transition: all var(--transition-fast);
}

.mobile-nav-item.active .mobile-nav-icon {
    transform: translateY(-2px);
}

/* ===== Responsive Navigation ===== */

@media (max-width: 768px) {
    .sidebar-nav {
        display: none;
    }

    .mobile-nav {
        display: block;
    }
}

/* ===== Navigation Animations ===== */

@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInFromBottom {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.sidebar-nav {
    animation: slideInFromLeft var(--transition-slow) ease-out;
}

.mobile-nav {
    animation: slideInFromBottom var(--transition-slow) ease-out;
}

/* ===== Accessibility Enhancements ===== */

.nav-link:focus-visible,
.mobile-nav-link:focus-visible {
    outline: 2px solid var(--color-accent-gold);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {

    .nav-link,
    .mobile-nav-link {
        border: 1px solid transparent;
    }

    .nav-item.active .nav-link,
    .mobile-nav-item.active .mobile-nav-link {
        border-color: var(--color-accent-gold);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {

    .nav-link,
    .mobile-nav-link,
    .nav-icon,
    .mobile-nav-icon {
        transition: none;
    }

    .sidebar-nav,
    .mobile-nav {
        animation: none;
    }
}