/**
 * Enhanced Responsive Gaming Navigation Menu
 * Optimized for mobile-first design with gaming aesthetics
 */

/* CSS Custom Properties for theming */
:root {
    /* Color Scheme */
    --nav-bg-primary: rgba(0, 0, 0, 0.95);
    --nav-bg-secondary: rgba(20, 20, 40, 0.95);
    --nav-accent: #4a9eff;
    --nav-accent-hover: #6bb3ff;
    --nav-text-primary: #ffffff;
    --nav-text-secondary: #cccccc;
    --nav-text-muted: #999999;
    --nav-border: #444444;
    --nav-gold: #ffd700;
    --nav-danger: #ff4757;
    
    /* Spacing */
    --nav-padding: 1rem;
    --nav-gap: 0.5rem;
    --nav-item-height: 48px;
    --nav-header-height: 60px;
    
    /* Animation */
    --nav-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --nav-transition-fast: all 0.2s ease;
    
    /* Shadows */
    --nav-shadow: 0 2px 20px rgba(0, 0, 0, 0.8);
    --nav-shadow-hover: 0 4px 25px rgba(0, 0, 0, 0.6);
}

/* Base Styles */
* {
    box-sizing: border-box;
}

/* Header Container */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, var(--nav-bg-primary) 0%, var(--nav-bg-secondary) 50%, var(--nav-bg-primary) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--nav-border);
    box-shadow: var(--nav-shadow);
    height: var(--nav-header-height);
    padding: 0 var(--nav-padding);
    transition: var(--nav-transition);
}

/* Main Navigation Container */
.main-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    gap: var(--nav-gap);
}

/* Menu Toggle Button - Enhanced for Mobile */
.menu-toggle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border: 2px solid var(--nav-border);
    border-radius: 12px;
    padding: 8px 12px;
    cursor: pointer;
    transition: var(--nav-transition);
    color: var(--nav-text-primary);
    font-family: 'Orbitron', 'Roboto', sans-serif;
    font-size: 10px;
    font-weight: bold;
    letter-spacing: 1px;
    min-width: 60px;
    height: 50px;
    position: relative;
    overflow: hidden;
}

.menu-toggle:hover,
.menu-toggle:focus {
    background: linear-gradient(145deg, #3a3a3a, #2a2a2a);
    border-color: var(--nav-accent);
    transform: translateY(-1px);
    box-shadow: var(--nav-shadow-hover);
}

.menu-toggle:active {
    transform: translateY(0);
}

.menu-toggle.active {
    background: linear-gradient(145deg, var(--nav-accent), #3a7bd5);
    border-color: var(--nav-accent-hover);
}

/* Hamburger Icon */
.menu-icon {
    display: flex;
    flex-direction: column;
    width: 22px;
    height: 14px;
    margin-bottom: 4px;
    position: relative;
}

.menu-line {
    width: 100%;
    height: 2px;
    background: var(--nav-text-primary);
    margin: 2px 0;
    transition: var(--nav-transition);
    border-radius: 2px;
}

.menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: translateX(-20px);
}

.menu-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.menu-text {
    color: var(--nav-text-secondary);
    font-size: 9px;
    transition: var(--nav-transition-fast);
}

.menu-toggle.active .menu-text {
    color: var(--nav-text-primary);
}

/* Game Logo Area - Responsive */
.game-title {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 0; /* Allow shrinking */
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    transition: var(--nav-transition-fast);
    padding: 4px 8px;
    border-radius: 8px;
}

.logo-link:hover,
.logo-link:focus {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.02);
}

.game-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
    transition: var(--nav-transition-fast);
}

.logo-text {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    font-size: 18px;
    font-weight: bold;
    color: var(--nav-text-primary);
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

/* User Info - Mobile Responsive */
.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    flex-shrink: 1;
}

.character-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--nav-transition-fast);
}

.character-info:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--nav-accent);
}

.character-details {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    min-width: 0;
}

.character-name {
    font-size: 14px;
    font-weight: bold;
    color: var(--nav-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
}

.character-level {
    font-size: 11px;
    color: var(--nav-accent);
    font-weight: 600;
}

.gold-display {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 6px;
    background: rgba(255, 215, 0, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(255, 215, 0, 0.3);
}

.gold-count {
    font-size: 12px;
    font-weight: bold;
    color: var(--nav-gold);
    white-space: nowrap;
}

.gold-icon {
    width: 16px;
    height: 16px;
    object-fit: contain;
}

.user-welcome {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    padding: 4px 8px;
}

.welcome-text {
    font-size: 10px;
    color: var(--nav-text-muted);
}

.username {
    font-size: 12px;
    font-weight: bold;
    color: var(--nav-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100px;
}

.guest-info {
    padding: 4px 8px;
}

.guest-text {
    font-size: 12px;
    color: var(--nav-text-muted);
    font-style: italic;
}

/* Navigation Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    opacity: 0;
    visibility: hidden;
    transition: var(--nav-transition);
    z-index: 999;
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Navigation Menu */
.nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    background: linear-gradient(180deg, var(--nav-bg-primary) 0%, var(--nav-bg-secondary) 100%);
    border-right: 2px solid var(--nav-border);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.8);
    transform: translateX(-100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.nav-menu.active {
    transform: translateX(0);
}

/* Navigation Header */
.nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--nav-padding);
    border-bottom: 2px solid var(--nav-border);
    background: rgba(0, 0, 0, 0.3);
    min-height: var(--nav-header-height);
}

.nav-title {
    font-family: 'Orbitron', 'Roboto', sans-serif;
    font-size: 18px;
    font-weight: bold;
    color: var(--nav-text-primary);
    margin: 0;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.nav-close {
    background: none;
    border: 2px solid var(--nav-border);
    color: var(--nav-text-primary);
    font-size: 24px;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--nav-transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-close:hover,
.nav-close:focus {
    background: var(--nav-danger);
    border-color: var(--nav-danger);
    transform: scale(1.1);
}

/* Navigation Content */
.nav-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--nav-padding);
    display: flex;
    flex-direction: column;
    gap: var(--nav-padding);
}

/* Quick Actions Grid - Mobile Priority */
.quick-actions {
    margin-bottom: var(--nav-padding);
}

.quick-action-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.quick-action-btn {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    padding: 12px 16px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border: 2px solid var(--nav-border);
    border-radius: 12px;
    text-decoration: none;
    color: var(--nav-text-primary);
    transition: var(--nav-transition);
    min-height: 60px;
}

.quick-action-btn:hover,
.quick-action-btn:focus {
    background: linear-gradient(145deg, var(--nav-accent), #3a7bd5);
    border-color: var(--nav-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--nav-shadow-hover);
}

.quick-action-btn .nav-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.action-label {
    font-size: 14px;
    font-weight: bold;
    text-align: left;
    line-height: 1.2;
}

/* Navigation Sections */
.nav-sections-container {
    flex: 1;
}

.nav-section {
    margin-bottom: var(--nav-padding);
}

.main-menu-items {
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-menu-items li {
    margin-bottom: 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--nav-text-secondary);
    border-radius: 8px;
    transition: var(--nav-transition-fast);
    min-height: var(--nav-item-height);
    position: relative;
    overflow: hidden;
}

.nav-link:hover,
.nav-link:focus {
    background: rgba(255, 255, 255, 0.1);
    color: var(--nav-text-primary);
    transform: translateX(4px);
}

.nav-link:active {
    background: rgba(255, 255, 255, 0.2);
}

.nav-link.active {
    background: var(--nav-accent);
    color: var(--nav-text-primary);
}

.nav-link .nav-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.nav-text {
    font-size: 14px;
    font-weight: 500;
    flex: 1;
}

/* Navigation Dividers */
.nav-divider {
    padding: 16px 16px 8px;
    margin: 16px 0 8px;
    border-top: 1px solid var(--nav-border);
    position: relative;
}

.divider-text {
    font-size: 11px;
    font-weight: bold;
    color: var(--nav-text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Account Section */
.account-section {
    border-top: 2px solid var(--nav-border);
    padding-top: var(--nav-padding);
    margin-top: auto;
}

.account-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.nav-section-title {
    font-size: 12px;
    font-weight: bold;
    color: var(--nav-text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin: 0;
}

.current-character-mini {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mini-character-name {
    font-size: 11px;
    color: var(--nav-text-primary);
    font-weight: 600;
}

.mini-character-level {
    font-size: 10px;
    color: var(--nav-accent);
    font-weight: bold;
}

.account-items {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-logout:hover,
.nav-logout:focus {
    background: var(--nav-danger);
    color: var(--nav-text-primary);
}

/* Navigation Footer */
.nav-footer {
    padding: var(--nav-padding);
    border-top: 1px solid var(--nav-border);
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.version-text {
    font-size: 10px;
    color: var(--nav-text-muted);
    font-style: italic;
}

.nav-social {
    display: flex;
    gap: 8px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    text-decoration: none;
    transition: var(--nav-transition-fast);
}

.social-link:hover,
.social-link:focus {
    background: var(--nav-accent);
    transform: scale(1.1);
}

.social-icon {
    width: 16px;
    height: 16px;
    object-fit: contain;
}

/* Mobile Navigation Helpers */
.mobile-nav-helpers {
    position: fixed;
    z-index: 900;
    pointer-events: none;
}

.swipe-hint {
    position: fixed;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: var(--nav-text-primary);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    opacity: 0;
    transition: var(--nav-transition);
    pointer-events: none;
}

.swipe-hint.show {
    opacity: 1;
    animation: swipeHintPulse 2s ease-in-out infinite;
}

@keyframes swipeHintPulse {
    0%, 100% { opacity: 0.8; transform: translateY(-50%) scale(1); }
    50% { opacity: 1; transform: translateY(-50%) scale(1.05); }
}

/* Responsive Breakpoints */

/* Small Mobile (320px - 480px) */
@media (max-width: 480px) {
    :root {
        --nav-header-height: 56px;
        --nav-padding: 0.75rem;
    }
    
    header {
        padding: 0 12px;
    }
    
    .menu-toggle {
        min-width: 50px;
        height: 44px;
        padding: 6px 10px;
    }
    
    .menu-text {
        font-size: 8px;
    }
    
    .logo-text {
        font-size: 16px;
        letter-spacing: 1px;
    }
    
    .character-name {
        max-width: 80px;
        font-size: 12px;
    }
    
    .gold-count {
        font-size: 11px;
    }
    
    .nav-menu {
        width: 280px;
        max-width: 90vw;
    }
    
    .quick-action-btn {
        padding: 10px 12px;
        min-height: 50px;
    }
    
    .quick-action-btn .nav-icon {
        width: 20px;
        height: 20px;
    }
    
    .action-label {
        font-size: 12px;
    }
}

/* Medium Mobile (481px - 768px) */
@media (min-width: 481px) and (max-width: 768px) {
    .character-name {
        max-width: 100px;
    }
    
    .username {
        max-width: 120px;
    }
}

/* Tablet Portrait (769px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .nav-menu {
        width: 350px;
    }
    
    .quick-action-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-action-btn {
        min-height: 60px;
    }
}

/* Desktop (1025px+) */
@media (min-width: 1025px) {
    .nav-menu {
        width: 380px;
    }
    
    .quick-action-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .quick-action-btn {
        min-height: 60px;
        padding: 14px 18px;
    }
}

/* Large Desktop (1440px+) */
@media (min-width: 1440px) {
    .main-navigation {
        max-width: 1600px;
        padding: 0 2rem;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .game-logo {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .swipe-hint {
        animation: none;
    }
}

/* Dark Mode Support (if system preference) */
@media (prefers-color-scheme: dark) {
    :root {
        --nav-bg-primary: rgba(0, 0, 0, 0.98);
        --nav-bg-secondary: rgba(10, 10, 20, 0.98);
    }
}

/* Print Styles */
@media print {
    header,
    .nav-menu,
    .nav-overlay,
    .mobile-nav-helpers {
        display: none !important;
    }
}

/* Focus Styles for Accessibility */
.menu-toggle:focus,
.nav-link:focus,
.nav-close:focus,
.logo-link:focus {
    outline: 2px solid var(--nav-accent);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --nav-border: #ffffff;
        --nav-text-secondary: #ffffff;
        --nav-accent: #00ffff;
    }
    
    .nav-link:hover,
    .nav-link:focus {
        background: #ffffff;
        color: #000000;
    }
}