/* Navigation Component Styles - Modern Design System */

.main-nav {
    background-color: var(--nav-bg-color, var(--ds-color-neutral-50, #ffffff));
    border-bottom: var(--ds-border-width-medium, 1px) solid var(--ds-color-neutral-300, #e2e8f0);
    box-shadow: var(--ds-shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06));
    position: sticky;
    top: 0;
    z-index: 1030;
    width: 100%;
    transition: all var(--ds-duration-base, 0.2s) var(--ds-ease-out, ease-out);
}

.main-nav.scrolled {
    box-shadow: var(--ds-shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06));
}

.nav-container {
    max-width: var(--ds-container-max-width, 1440px);
    margin: 0 auto;
    padding: 0 var(--ds-space-6, 1.5rem);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    z-index: 1031;
}

.nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--nav-text-color, var(--ds-color-neutral-900, #1a202c));
    transition: all var(--ds-duration-fast, 0.15s) var(--ds-ease-out, ease-out);
    gap: var(--ds-space-3, 0.75rem);
}

.nav-logo a:hover {
    color: var(--nav-hover-text-color, var(--ds-color-primary, #009634));
    transform: translateY(-1px);
}

#logo-image {
    height: 40px;
    width: auto;
    object-fit: contain;
    transition: transform var(--ds-duration-fast, 0.15s) var(--ds-ease-out, ease-out);
}

#logo-image:hover {
    transform: scale(1.05);
}

#logo-text {
    font-size: var(--ds-font-size-xl, 1.25rem);
    font-weight: var(--ds-font-weight-bold, 700);
    color: inherit;
    white-space: nowrap;
}

.nav-logo.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--ds-space-1, 0.25rem);
}

.nav-item {
    display: flex;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: var(--ds-space-3, 0.75rem) var(--ds-space-4, 1rem);
    color: var(--nav-text-color, var(--ds-color-neutral-700, #4a5568));
    text-decoration: none;
    transition: all var(--ds-duration-fast, 0.15s) var(--ds-ease-out, ease-out);
    font-size: var(--ds-font-size-base, 0.9375rem);
    font-weight: var(--ds-font-weight-medium, 500);
    border-radius: var(--ds-radius-lg, 0.75rem);
    position: relative;
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--ds-color-primary, #009634);
    transform: translateX(-50%);
    transition: width var(--ds-duration-fast, 0.15s) var(--ds-ease-out, ease-out);
}

.nav-link:hover {
    background-color: var(--nav-hover-bg-color, var(--ds-color-neutral-100, #f8f9fb));
    color: var(--nav-hover-text-color, var(--ds-color-primary, #009634));
    transform: translateY(-1px);
}

.nav-link:hover::after {
    width: 80%;
}

.nav-link.active,
.nav-link.current-page {
    background-color: var(--nav-active-bg-color, var(--ds-color-primary-bg, #d1fae5));
    color: var(--nav-active-text-color, var(--ds-color-primary, #009634));
    font-weight: var(--ds-font-weight-semibold, 600);
}

.nav-link.active::after,
.nav-link.current-page::after {
    width: 80%;
}

/* Auth section (login / user / logout) */
.nav-auth {
    display: flex;
    align-items: center;
    gap: var(--ds-space-3, 0.75rem);
    margin-left: auto;
    flex-shrink: 0;
}

.nav-auth-user {
    display: flex;
    align-items: center;
    gap: var(--ds-space-2, 0.5rem);
    max-width: 220px;
}

.nav-auth-icon {
    font-size: 1.5rem;
    color: var(--nav-text-color, var(--ds-color-neutral-600, #718096));
    flex-shrink: 0;
}

.nav-auth-details {
    display: flex;
    flex-direction: column;
    min-width: 0;
    line-height: 1.2;
}

.nav-auth-name {
    font-weight: var(--ds-font-weight-semibold, 600);
    font-size: var(--ds-font-size-sm, 0.875rem);
    color: var(--nav-text-color, var(--ds-color-neutral-900, #1a202c));
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-auth-role {
    font-size: var(--ds-font-size-xs, 0.75rem);
    color: var(--ds-color-neutral-500, #a0aec0);
}

.nav-auth-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--ds-space-2, 0.5rem);
    padding: var(--ds-space-2, 0.5rem) var(--ds-space-3, 0.75rem);
    border-radius: var(--ds-radius-md, 0.5rem);
    font-size: var(--ds-font-size-sm, 0.875rem);
    font-weight: var(--ds-font-weight-medium, 500);
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    background: transparent;
    color: var(--nav-text-color, var(--ds-color-neutral-700, #4a5568));
    transition: all var(--ds-duration-fast, 0.15s) var(--ds-ease-out, ease-out);
    white-space: nowrap;
}

.nav-auth-btn:hover {
    background-color: var(--nav-hover-bg-color, var(--ds-color-neutral-100, #f7fafc));
    color: var(--nav-hover-text-color, var(--ds-color-primary, #009634));
}

.nav-auth-logout {
    border-color: var(--ds-color-neutral-300, #e2e8f0);
}

.nav-auth-logout:hover {
    border-color: var(--ds-color-primary, #009634);
}

.nav-auth-btn:focus-visible {
    outline: 2px solid var(--ds-color-primary, #009634);
    outline-offset: 2px;
}

/* Hamburger Menu (Hidden on Desktop) */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: transparent;
    border: 2px solid transparent;
    cursor: pointer;
    padding: var(--ds-space-2, 0.5rem);
    z-index: 1031;
    transition: all var(--ds-duration-fast, 0.15s) var(--ds-ease-out, ease-out);
    border-radius: var(--ds-radius-md, 0.5rem);
    width: 44px;
    height: 44px;
    position: relative;
}

.nav-toggle:hover {
    background-color: var(--ds-color-neutral-100, #f8f9fb);
    border-color: var(--ds-color-neutral-300, #e2e8f0);
}

.nav-toggle:focus {
    outline: 2px solid var(--ds-color-primary, #009634);
    outline-offset: 2px;
}

.nav-toggle:active {
    background-color: var(--ds-color-neutral-200, #f1f3f6);
}

.hamburger {
    width: 24px;
    height: 2.5px;
    background-color: var(--nav-text-color, var(--ds-color-neutral-700, #4a5568));
    margin: 3px 0;
    transition: all var(--ds-duration-base, 0.2s) var(--ds-ease-out, ease-out);
    border-radius: 2px;
    display: block;
}

/* Hamburger Animation when Active */
.nav-toggle.active {
    background-color: var(--ds-color-neutral-100, #f8f9fb);
}

.nav-toggle.active .hamburger {
    background-color: var(--ds-color-primary, #009634);
}

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

.nav-toggle.active .hamburger:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

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

/* Mobile Navigation Overlay */
.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1029;
    opacity: 0;
    transition: opacity var(--ds-duration-base, 0.2s) var(--ds-ease-out, ease-out);
}

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

/* Mobile Responsive */
@media (max-width: 767px) {
    .nav-container {
        padding: 0 var(--ds-space-4, 1rem);
    }

    .nav-toggle {
        display: flex !important;
    }

    .nav-menu {
        position: fixed !important;
        left: -100% !important;
        top: 64px;
        flex-direction: column;
        background-color: var(--nav-bg-color, var(--ds-color-neutral-50, #ffffff));
        width: 85%;
        max-width: 320px;
        text-align: left;
        transition: left var(--ds-duration-smooth, 0.3s) cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--ds-shadow-xl, 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04));
        gap: 0;
        max-height: calc(100vh - 64px);
        overflow-y: auto;
        overflow-x: hidden;
        padding: var(--ds-space-4, 1rem);
        border-top: 1px solid var(--ds-color-neutral-300, #e2e8f0);
        border-right: 1px solid var(--ds-color-neutral-300, #e2e8f0);
        z-index: 1030;
    }

    .nav-menu.active {
        left: 0 !important;
    }

    .nav-item {
        width: 100%;
        margin-bottom: var(--ds-space-1, 0.25rem);
    }

    .nav-link {
        padding: var(--ds-space-4, 1rem);
        width: 100%;
        border-radius: var(--ds-radius-lg, 0.75rem);
        font-size: var(--ds-font-size-md, 1rem);
    }

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

    .nav-link:hover {
        transform: translateX(4px);
    }

    #logo-text {
        font-size: var(--ds-font-size-lg, 1.125rem);
    }
    
    #logo-image {
        height: 36px;
    }

    .nav-auth {
        margin-left: 0;
        margin-top: var(--ds-space-4, 1rem);
        padding-top: var(--ds-space-4, 1rem);
        border-top: 1px solid var(--ds-color-neutral-300, #e2e8f0);
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }

    .nav-auth-user {
        max-width: none;
        padding: var(--ds-space-2, 0.5rem) 0;
    }

    .nav-auth-btn {
        justify-content: center;
        width: 100%;
        padding: var(--ds-space-3, 0.75rem) var(--ds-space-4, 1rem);
        font-size: var(--ds-font-size-md, 1rem);
    }
}

/* Tablet adjustments */
@media (max-width: 1024px) and (min-width: 768px) {
    .nav-container {
        padding: 0 var(--ds-space-5, 1.25rem);
    }

    .nav-link {
        padding: var(--ds-space-3, 0.75rem);
        font-size: var(--ds-font-size-sm, 0.875rem);
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    .nav-container {
        height: 56px;
        padding: 0 var(--ds-space-3, 0.75rem);
    }

    .main-nav {
        top: 0;
    }

    .nav-menu {
        top: 56px;
        width: 90%;
        max-width: 280px;
        max-height: calc(100vh - 56px);
        padding: var(--ds-space-3, 0.75rem);
    }

    #logo-text {
        font-size: var(--ds-font-size-base, 0.9375rem);
    }
    
    #logo-image {
        height: 32px;
    }

    .nav-toggle {
        width: var(--ds-touch-target-min);
        height: var(--ds-touch-target-min);
    }

    .hamburger {
        width: 20px;
    }
}

/* Desktop */
@media (min-width: 768px) {
    .nav-menu {
        position: static;
        flex-direction: row;
        width: auto;
        box-shadow: none;
        border-top: none;
        padding: 0;
    }

    .nav-overlay {
        display: none !important;
    }
}

/* Smooth scrolling behavior */
@media (prefers-reduced-motion: no-preference) {
    .main-nav,
    .nav-menu,
    .nav-link,
    .nav-toggle,
    .hamburger,
    .nav-overlay {
        transition-duration: var(--ds-duration-base, 0.2s);
    }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    .main-nav,
    .nav-menu,
    .nav-link,
    .nav-toggle,
    .hamburger,
    .nav-overlay,
    #logo-image {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

/* Theme Support - Dark Mode */
[data-theme="dark"] .main-nav {
    background-color: var(--nav-bg-color, var(--ds-color-neutral-900, #1a202c));
    border-bottom-color: var(--ds-color-neutral-700, #4a5568);
}

[data-theme="dark"] .nav-link {
    color: var(--nav-text-color, var(--ds-color-neutral-100, #f8f9fb));
}

[data-theme="dark"] .nav-link:hover {
    background-color: var(--nav-hover-bg-color, var(--ds-color-neutral-800, #2d3748));
    color: var(--nav-hover-text-color, var(--ds-color-primary-light, #10b981));
}

[data-theme="dark"] .nav-link.active,
[data-theme="dark"] .nav-link.current-page {
    background-color: var(--nav-active-bg-color, var(--ds-color-primary-dark, #065f46));
    color: var(--nav-active-text-color, var(--ds-color-primary-light, #10b981));
}

[data-theme="dark"] .hamburger {
    background-color: var(--nav-text-color, var(--ds-color-neutral-100, #f8f9fb));
}

[data-theme="dark"] .nav-toggle.active .hamburger {
    background-color: var(--ds-color-primary-light, #10b981);
}

[data-theme="dark"] .nav-menu {
    background-color: var(--nav-bg-color, var(--ds-color-neutral-900, #1a202c));
    border-color: var(--ds-color-neutral-700, #4a5568);
}

[data-theme="dark"] .nav-toggle:hover {
    background-color: var(--ds-color-neutral-800, #2d3748);
    border-color: var(--ds-color-neutral-600, #718096);
}

[data-theme="dark"] .nav-toggle:focus {
    outline-color: var(--ds-color-primary-light, #10b981);
}

[data-theme="dark"] .nav-overlay {
    background-color: rgba(0, 0, 0, 0.7);
}

[data-theme="dark"] .nav-auth-name {
    color: var(--nav-text-color, var(--ds-color-neutral-100, #f8f9fb));
}

[data-theme="dark"] .nav-auth-role {
    color: var(--ds-color-neutral-400, #a0aec0);
}

[data-theme="dark"] .nav-auth-btn {
    color: var(--nav-text-color, var(--ds-color-neutral-200, #e2e8f0));
}

[data-theme="dark"] .nav-auth-btn:hover {
    background-color: var(--nav-hover-bg-color, var(--ds-color-neutral-800, #2d3748));
    color: var(--nav-hover-text-color, var(--ds-color-primary-light, #10b981));
}

[data-theme="dark"] .nav-auth-logout {
    border-color: var(--ds-color-neutral-600, #718096);
}

[data-theme="dark"] .nav-menu .nav-auth {
    border-top-color: var(--ds-color-neutral-700, #4a5568);
}

/* Loading state */
.nav-logo.loading {
    animation: pulse 1.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Focus visible for better accessibility */
.nav-link:focus-visible {
    outline: 2px solid var(--ds-color-primary, #009634);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .main-nav {
        border-bottom-width: 2px;
    }

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

    .nav-link:hover,
    .nav-link:focus {
        border-color: currentColor;
    }
}