/**
 * Inspace Landing Page Navigation Styles
 * 
 * Mobile-first responsive navigation with persona-specific color variants.
 * Works with landing-navigation.js for auth-aware dynamic rendering.
 * 
 * @version 2.0.0
 * 
 * Structure:
 * 1. CSS Variables (Base + Persona Overrides)
 * 2. Navigation Base Styles
 * 3. Nav Links & CTA
 * 4. Auth State Styles (User Dropdown)
 * 5. Mobile Navigation
 * 6. Responsive Breakpoints
 * 7. Animations & Transitions
 */

/* =============================================================================
   1. CSS Variables
   ============================================================================= */

:root {
    /* Navigation dimensions */
    --nav-height-mobile: 56px;
    --nav-height-desktop: 64px;
    --nav-padding-x: 1rem;
    --nav-padding-x-desktop: 2rem;
    
    /* Navigation colors (defaults - overridden by persona) */
    --nav-bg: rgba(255, 255, 255, 0.98);
    --nav-bg-scrolled: rgba(255, 255, 255, 0.99);
    --nav-text: #1a1a1a;
    --nav-text-muted: #666;
    --nav-accent: #2748ff;
    --nav-accent-hover: #1a35d9;
    --nav-border: rgba(0, 0, 0, 0.08);
    
    /* Navigation shadows */
    --nav-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    --nav-shadow-scrolled: 0 4px 20px rgba(0, 0, 0, 0.08);
    --dropdown-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
    
    /* Mobile nav */
    --mobile-nav-bg: #fff;
    --mobile-nav-overlay: rgba(0, 0, 0, 0.5);
    
    /* Transitions */
    --nav-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --dropdown-transition: all 0.2s ease-out;
}

/* Persona: Business (Gold) */
[data-landing-persona="business"] {
    --nav-accent: #c9a962;
    --nav-accent-hover: #b89a56;
}

/* Persona: Designers (Terracotta) */
[data-landing-persona="designers"] {
    --nav-accent: #c4775c;
    --nav-accent-hover: #b06a51;
}

/* Persona: Resellers (Lime) */
[data-landing-persona="resellers"] {
    --nav-accent: #c8ff00;
    --nav-accent-hover: #b8eb00;
    --nav-bg: rgba(10, 10, 10, 0.98);
    --nav-bg-scrolled: rgba(10, 10, 10, 0.99);
    --nav-text: #fff;
    --nav-text-muted: rgba(255, 255, 255, 0.7);
    --nav-border: rgba(255, 255, 255, 0.1);
    --mobile-nav-bg: #0a0a0a;
}

/* Persona: Manufacturers (Blue Gradient) */
[data-landing-persona="manufacturers"] {
    --nav-accent: #3b82f6;
    --nav-accent-hover: #2563eb;
}


/* =============================================================================
   2. Navigation Base Styles
   ============================================================================= */

nav,
.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height-mobile);
    background: var(--nav-bg);
    border-bottom: 1px solid var(--nav-border);
    transition: var(--nav-transition);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

nav.nav-scrolled,
.landing-nav.nav-scrolled {
    background: var(--nav-bg-scrolled);
    box-shadow: var(--nav-shadow-scrolled);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--nav-padding-x);
}

/* Fallback for pages without .nav-container wrapper */
nav:not(:has(.nav-container)) {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--nav-padding-x);
    max-width: 1400px;
    margin: 0 auto;
}


/* =============================================================================
   3. Logo Styles
   ============================================================================= */

.nav-logo,
nav .logo,
nav a.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--nav-text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-logo img {
    height: 28px;
    width: auto;
}

.nav-logo span,
nav .logo span {
    color: var(--nav-accent);
}

/* Logo variants for different personas */
.logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--nav-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0;
    border-radius: 6px;
}

[data-landing-persona="resellers"] .logo-mark {
    color: #0a0a0a;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--nav-accent), #a855f7);
    border-radius: 8px;
    color: #fff;
    font-weight: 800;
    font-size: 0.8rem;
}


/* =============================================================================
   4. Navigation Links
   ============================================================================= */

.nav-links {
    display: none;
    align-items: center;
    gap: 0.25rem;
}

.nav-links a:not(.nav-cta):not(.nav-signin):not(.nav-dashboard) {
    padding: 0.5rem 0.875rem;
    color: var(--nav-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 6px;
    transition: var(--nav-transition);
}

.nav-links a:not(.nav-cta):not(.nav-signin):not(.nav-dashboard):hover {
    color: var(--nav-accent);
    background: rgba(0, 0, 0, 0.04);
}

[data-landing-persona="resellers"] .nav-links a:not(.nav-cta):not(.nav-signin):not(.nav-dashboard):hover {
    background: rgba(255, 255, 255, 0.08);
}


/* =============================================================================
   5. Auth Section Styles
   ============================================================================= */

/* Sign In Link */
.nav-signin {
    padding: 0.5rem 1rem;
    color: var(--nav-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 6px;
    transition: var(--nav-transition);
}

.nav-signin:hover {
    color: var(--nav-accent);
}

/* CTA Button */
.nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 0.625rem 1.25rem;
    background: var(--nav-accent);
    color: #fff !important;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--nav-transition);
    margin-left: 0.5rem;
}

.nav-cta:hover {
    background: var(--nav-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

[data-landing-persona="resellers"] .nav-cta {
    color: #0a0a0a !important;
}

/* Dashboard Link */
.nav-dashboard {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.875rem;
    color: var(--nav-accent);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 6px;
    transition: var(--nav-transition);
}

.nav-dashboard:hover {
    background: rgba(0, 0, 0, 0.04);
}

.nav-dashboard i {
    font-size: 1rem;
}

/* Auth Section Container */
.nav-auth-section {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
    padding-left: 1rem;
}


/* =============================================================================
   6. User Dropdown
   ============================================================================= */

.nav-user-dropdown {
    position: relative;
}

.nav-user-trigger {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.5rem;
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--nav-transition);
}

.nav-user-trigger:hover {
    background: rgba(0, 0, 0, 0.04);
}

[data-landing-persona="resellers"] .nav-user-trigger:hover {
    background: rgba(255, 255, 255, 0.08);
}

.nav-user-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--nav-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
}

[data-landing-persona="resellers"] .nav-user-avatar {
    color: #0a0a0a;
}

.nav-user-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--nav-text);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-user-trigger i {
    font-size: 0.75rem;
    color: var(--nav-text-muted);
    transition: transform 0.2s ease;
}

.nav-user-dropdown.open .nav-user-trigger i {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 220px;
    background: #fff;
    border-radius: 12px;
    box-shadow: var(--dropdown-shadow);
    border: 1px solid rgba(0, 0, 0, 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--dropdown-transition);
    overflow: hidden;
    z-index: 100;
}

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

.nav-dropdown-header {
    padding: 0.875rem 1rem;
    background: #f9fafb;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.nav-dropdown-email {
    display: block;
    font-size: 0.8rem;
    color: #666;
    margin-bottom: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-dropdown-role {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.nav-dropdown-divider {
    height: 1px;
    background: rgba(0, 0, 0, 0.06);
    margin: 0.25rem 0;
}

.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    width: 100%;
    padding: 0.75rem 1rem;
    color: #333;
    text-decoration: none;
    font-size: 0.875rem;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background 0.15s ease;
}

.nav-dropdown-item:hover {
    background: #f3f4f6;
}

.nav-dropdown-item i {
    font-size: 1rem;
    color: #666;
}

.nav-logout {
    color: #dc2626;
}

.nav-logout:hover {
    background: #fef2f2;
}

.nav-logout i {
    color: #dc2626;
}


/* =============================================================================
   7. Mobile Navigation Toggle
   ============================================================================= */

.nav-mobile-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.nav-mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--nav-text);
    border-radius: 2px;
    transition: var(--nav-transition);
    transform-origin: center;
}

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

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

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


/* =============================================================================
   8. Mobile Navigation Panel
   ============================================================================= */

.nav-mobile {
    position: fixed;
    top: var(--nav-height-mobile);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--mobile-nav-bg);
    z-index: 999;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    overflow-y: auto;
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--nav-transition);
}

.nav-mobile.active {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
}

/* Prevent body scroll when mobile nav is open */
body.nav-mobile-open {
    overflow: hidden;
}

/* Mobile nav links */
.nav-mobile a {
    display: block;
    padding: 0.875rem 0;
    color: var(--nav-text);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    border-bottom: 1px solid var(--nav-border);
    transition: color 0.2s ease;
}

.nav-mobile a:hover {
    color: var(--nav-accent);
}

/* Mobile nav sections */
.mobile-nav-section {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 2px solid var(--nav-border);
}

.mobile-nav-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--nav-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}

/* Mobile nav user info */
.mobile-nav-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    margin-bottom: 0.5rem;
}

.mobile-nav-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
}

.mobile-nav-user-info {
    display: flex;
    flex-direction: column;
}

.mobile-nav-user-name {
    font-weight: 600;
    color: var(--nav-text);
}

.mobile-nav-user-role {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Mobile CTA */
.mobile-nav-cta {
    display: block;
    text-align: center;
    padding: 1rem !important;
    margin-top: 1rem;
    background: var(--nav-accent);
    color: #fff !important;
    border-radius: 10px;
    font-weight: 600;
    border: none !important;
}

[data-landing-persona="resellers"] .mobile-nav-cta {
    color: #0a0a0a !important;
}

/* Mobile logout button */
.mobile-nav-logout {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 0.875rem 0;
    background: transparent;
    border: none;
    color: #dc2626;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    border-bottom: 1px solid var(--nav-border);
}

.mobile-nav-logout:hover {
    color: #b91c1c;
}


/* =============================================================================
   9. Responsive Breakpoints
   ============================================================================= */

/* Tablet and up */
@media (min-width: 768px) {
    nav,
    .landing-nav {
        height: var(--nav-height-desktop);
    }
    
    .nav-container,
    nav:not(:has(.nav-container)) {
        padding: 0 var(--nav-padding-x-desktop);
    }
    
    .nav-links {
        display: flex;
    }
    
    .nav-mobile-toggle {
        display: none;
    }
    
    .nav-mobile {
        display: none;
    }
    
    .nav-logo img {
        height: 32px;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .nav-links {
        gap: 0.5rem;
    }
    
    .nav-links a:not(.nav-cta):not(.nav-signin):not(.nav-dashboard) {
        padding: 0.5rem 1rem;
    }
}

/* Large screens */
@media (min-width: 1280px) {
    .nav-container,
    nav:not(:has(.nav-container)) {
        max-width: 100%;
    }
}


/* =============================================================================
   10. Animations & Transitions
   ============================================================================= */

/* Dropdown entry animation */
@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-user-dropdown.open .nav-dropdown-menu {
    animation: dropdownFadeIn 0.2s ease-out forwards;
}

/* Mobile nav slide in */
@keyframes mobileNavSlideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.nav-mobile.active {
    animation: mobileNavSlideIn 0.3s ease-out forwards;
}

/* Nav scroll effect - smooth background transition */
nav,
.landing-nav {
    will-change: background-color, box-shadow;
}


/* =============================================================================
   11. Print Styles
   ============================================================================= */

@media print {
    nav,
    .landing-nav,
    .nav-mobile {
        display: none !important;
    }
}


/* =============================================================================
   12. Accessibility
   ============================================================================= */

/* Focus states */
.nav-links a:focus-visible,
.nav-cta:focus-visible,
.nav-signin:focus-visible,
.nav-user-trigger:focus-visible,
.nav-dropdown-item:focus-visible,
.nav-mobile a:focus-visible {
    outline: 2px solid var(--nav-accent);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    nav,
    .landing-nav,
    .nav-links a,
    .nav-cta,
    .nav-dropdown-menu,
    .nav-mobile,
    .nav-mobile-toggle span {
        transition: none;
        animation: none;
    }
}

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