/* ===========================
   PROFESSIONAL MOBILE DRAWER
   Galaxy Legends - Mobile Navigation System
   =========================== */

/* Professional Mobile Drawer Overlay */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

/* Professional Mobile Drawer */
.mobile-drawer {
    position: fixed;
    top: 0;
    left: -320px;
    width: 320px;
    height: 100vh;
    background: linear-gradient(180deg, 
        rgba(15, 15, 35, 0.98) 0%,
        rgba(26, 26, 46, 0.95) 50%,
        rgba(22, 33, 62, 0.98) 100%);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(107, 70, 193, 0.3);
    z-index: 1000;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.mobile-drawer.active {
    transform: translateX(320px);
}

/* Drawer Header */
.drawer-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, 
        rgba(107, 70, 193, 0.2) 0%,
        rgba(139, 92, 246, 0.1) 100%);
    border-bottom: 1px solid rgba(107, 70, 193, 0.2);
    position: relative;
    overflow: hidden;
}

.drawer-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 100%);
    transition: left 0.6s ease;
}

.drawer-header:hover::before {
    left: 100%;
}

.drawer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.drawer-logo img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--primary-purple);
    box-shadow: 0 0 15px rgba(107, 70, 193, 0.4);
}

.drawer-brand {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.drawer-close {
    display: none;
}

/* Drawer Navigation */
.drawer-nav {
    flex: 1;
    padding: 2rem 0;
    overflow-y: auto;
}

.drawer-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.drawer-nav-item {
    margin: 0;
    opacity: 0;
    transform: translateX(-20px);
    animation: slideInLeft 0.6s ease forwards;
}

.drawer-nav-item:nth-child(1) { animation-delay: 0.1s; }
.drawer-nav-item:nth-child(2) { animation-delay: 0.2s; }
.drawer-nav-item:nth-child(3) { animation-delay: 0.3s; }
.drawer-nav-item:nth-child(4) { animation-delay: 0.4s; }

.drawer-nav-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 1rem 2rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.drawer-nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 0;   
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(107, 70, 193, 0.2) 0%,
        rgba(139, 92, 246, 0.1) 100%);
    transition: width 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: -1;
}

.drawer-nav-link:hover::before,
.drawer-nav-link.active::before {
    width: 100%;
}

.drawer-nav-link:hover,
.drawer-nav-link.active {
    color: var(--text-primary);
    transform: translateX(8px);
}

.drawer-nav-link:hover .nav-icon,
.drawer-nav-link.active .nav-icon {
    color: var(--primary-purple);
    transform: scale(1.1);
}

.nav-icon {
    font-size: 1.3rem;
    transition: all 0.3s ease;
    width: 24px;
    text-align: center;
}

.nav-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-title {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.2;
}

.nav-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 400;
}

.nav-arrow {
    margin-left: auto;
    font-size: 1rem;
    transition: transform 0.3s ease;
    color: var(--text-muted);
}

.drawer-nav-link:hover .nav-arrow {
    transform: translateX(4px);
    color: var(--primary-purple);
}

/* Drawer Footer */
.drawer-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid rgba(107, 70, 193, 0.2);
    background: rgba(0, 0, 0, 0.2);
    text-align: center;
}

.social-section h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.drawer-footer .social-links {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.drawer-footer .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(107, 70, 193, 0.1);
    border: 1px solid rgba(107, 70, 193, 0.3);
    border-radius: 50%;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    font-size: 1.2rem;
}

.drawer-footer .social-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(107, 70, 193, 0.4);
}

/* Mobile Menu Button Animation */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    background: rgba(107, 70, 193, 0.1);
    border: 1px solid rgba(107, 70, 193, 0.2);
}

.mobile-menu-btn:hover {
    background: rgba(107, 70, 193, 0.2);
    transform: scale(1.05);
}

.menu-bar {
    width: 28px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    border-radius: 2px;
    transform-origin: center;
}

.mobile-menu-btn.active .menu-bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
    background: var(--primary-purple);
}

.mobile-menu-btn.active .menu-bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-menu-btn.active .menu-bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
    background: var(--primary-purple);
}

/* Drawer Animations */
@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Prevent body scroll when drawer is open */
body.drawer-open {
    overflow: hidden;
    height: 100vh;
    position: fixed;
    width: 100%;
}

/* Enhanced Mobile Drawer Active States */
.mobile-drawer.active .drawer-nav-item {
    animation: slideInLeft 0.6s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

/* Drawer Loading Animation */
@keyframes drawerSlide {
    0% {
        transform: translateX(-100%);
        opacity: 0;
    }
    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===========================
   RESPONSIVE BREAKPOINTS
   =========================== */

/* Show Mobile Drawer on Mobile Devices */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-overlay,
    .mobile-drawer {
        display: block;
    }
}

/* Mobile Drawer Responsive Improvements */
@media (max-width: 480px) {
    .mobile-drawer {
        width: 280px;
        left: -280px;
    }
    
    .mobile-drawer.active {
        transform: translateX(280px);
    }
    
    .drawer-header {
        padding: 1rem 1.5rem;
    }
    
    .drawer-nav-link {
        padding: 0.8rem 1.5rem;
    }
    
    .nav-title {
        font-size: 1rem;
    }
    
    .nav-subtitle {
        font-size: 0.8rem;
    }
}

/* Extra Small Devices */
@media (max-width: 360px) {
    .mobile-drawer {
        width: 260px;
        left: -260px;
    }
    
    .mobile-drawer.active {
        transform: translateX(260px);
    }
    
    .drawer-header {
        padding: 0.8rem 1.2rem;
    }
    
    .drawer-brand {
        font-size: 1.1rem;
    }
    
    .drawer-nav-link {
        padding: 0.7rem 1.2rem;
        gap: 12px;
    }
    
    .nav-icon {
        font-size: 1.1rem;
        width: 20px;
    }
    
    .nav-title {
        font-size: 0.95rem;
    }
    
    .nav-subtitle {
        font-size: 0.75rem;
    }
}

/* Performance Optimizations for Touch Devices */
@media (hover: none) and (pointer: coarse) {
    .drawer-nav-link:hover,
    .mobile-menu-btn:hover,
    .drawer-close:hover {
        transform: none;
    }
    
    .drawer-footer .social-link:hover {
        transform: none;
        background: var(--gradient-primary);
        color: white;
    }
}

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