/* ========================================
   STATE-OF-THE-ART MEGA MENU STYLES
   ======================================== */

:root {
    --menu-bg: #ffffff;
    --menu-bg-hover: #0f4c81;
    --menu-text: #10273a;
    --menu-text-light: #6a7b8e;
    --menu-accent: #1c8c7b;
    --menu-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    --menu-shadow-hover: 0 25px 60px rgba(15, 76, 129, 0.25);
    --menu-radius: 16px;
    --menu-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Main Navigation Container */
.app-nav-container {
    position: relative;
    background: var(--menu-bg);
    border-radius: var(--menu-radius);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    padding: 0 20px;
    margin-bottom: calc(24px + var(--nav-dropdown-space, 0px));
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1200;
    transition: margin-bottom 0.25s ease;
}

/* Logo Section */
.app-nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    text-decoration: none;
}

.app-nav-logo-img {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    object-fit: cover;
    box-shadow: 0 8px 20px rgba(15, 76, 129, 0.2);
}

.app-nav-logo-text {
    display: flex;
    flex-direction: column;
}

.app-nav-logo-text strong {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--menu-text);
    letter-spacing: -0.02em;
}

.app-nav-logo-text small {
    font-size: 0.75rem;
    color: var(--menu-text-light);
    letter-spacing: 0.05em;
}

/* Navigation Menu */
.app-nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Menu Item */
.app-nav-item {
    position: relative;
}

/* Menu Link */
.app-nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--menu-text);
    text-decoration: none;
    border-radius: 12px;
    transition: var(--menu-transition);
    cursor: pointer;
    position: relative;
}

.app-nav-link::before {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 8px;
    width: 0;
    height: 3px;
    background: var(--menu-accent);
    border-radius: 3px;
    transition: var(--menu-transition);
    transform: translateX(-50%);
}

.app-nav-link:hover {
    color: white;
    background: var(--menu-bg-hover);
}

.app-nav-link:hover::before {
    width: 24px;
}

/* Active State */
.app-nav-link.active {
    color: var(--menu-accent);
    background: rgba(28, 140, 123, 0.1);
}

/* Dropdown Arrow */
.app-nav-arrow {
    width: 16px;
    height: 16px;
    transition: var(--menu-transition);
}

.app-nav-item:hover .app-nav-arrow {
    transform: rotate(180deg);
}

/* Mega Menu Dropdown */
.app-nav-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    min-width: 260px;
    background: var(--menu-bg);
    border-radius: var(--menu-radius);
    box-shadow: var(--menu-shadow);
    padding: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--menu-transition);
    z-index: 1000;
}

.app-nav-item:hover .app-nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Dropdown Items */
.app-dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--menu-text);
    text-decoration: none;
    border-radius: 10px;
    transition: var(--menu-transition);
}

.app-dropdown-item:hover {
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.08), rgba(28, 140, 123, 0.08));
    color: var(--menu-bg-hover);
    transform: translateX(6px);
}

.app-dropdown-icon {
    width: 20px;
    height: 20px;
    color: var(--menu-accent);
}

/* Sub-dropdown (nested) */
.app-nav-subdropdown {
    position: absolute;
    top: 0;
    left: 100%;
    min-width: 220px;
    background: var(--menu-bg);
    border-radius: var(--menu-radius);
    box-shadow: var(--menu-shadow);
    padding: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: var(--menu-transition);
}

.app-dropdown-item:hover > .app-nav-subdropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* Menu Section Divider */
.app-nav-section {
    padding: 8px 16px 12px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--menu-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.app-nav-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.08), transparent);
    margin: 8px 0;
}

/* User Profile in Menu */
.app-nav-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.05), rgba(28, 140, 123, 0.05));
    border-radius: 14px;
    margin-left: 12px;
}

.app-nav-avatar {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, #0f4c81, #1c8c7b);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1rem;
}

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

.app-nav-user-name {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--menu-text);
}

.app-nav-user-role {
    font-size: 0.75rem;
    color: var(--menu-text-light);
}

/* Mobile Menu Toggle */
.app-nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--menu-bg);
    border: none;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.app-nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--menu-text);
    border-radius: 2px;
    transition: var(--menu-transition);
}

/* Menu Badge/Pill */
.app-nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
    background: #b42318;
    border-radius: 10px;
    margin-left: auto;
}

/* Quick Actions */
.app-nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 16px;
}

.app-nav-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: none;
    background: transparent;
    color: var(--menu-text);
    cursor: pointer;
    transition: var(--menu-transition);
}

.app-nav-action-btn:hover {
    background: rgba(15, 76, 129, 0.08);
    color: var(--menu-bg-hover);
}

/* Animation Keyframes */
@keyframes menuSlideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes menuPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(28, 140, 123, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(28, 140, 123, 0);
    }
}

.app-nav-item.new::after {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--menu-accent);
    border-radius: 50%;
    margin-left: 6px;
    animation: menuPulse 2s infinite;
}

/* Responsive Menu */
@media (max-width: 1200px) {
    .app-nav-container {
        flex-wrap: wrap;
        padding: 0 12px;
        margin-bottom: 24px;
    }
    
    .app-nav-toggle {
        display: flex;
    }
    
    .app-nav-menu {
        display: none;
        position: fixed;
        top: 0;
        left: -100%;
        width: 320px;
        height: 100vh;
        background: var(--menu-bg);
        flex-direction: column;
        align-items: stretch;
        padding: 80px 20px 30px;
        box-shadow: var(--menu-shadow);
        transition: var(--menu-transition);
        z-index: 9999;
        overflow-y: auto;
    }
    
    .app-nav-menu.active {
        display: flex;
        left: 0;
    }
    
    .app-nav-item {
        width: 100%;
    }
    
    .app-nav-link {
        padding: 16px;
        font-size: 1rem;
    }
    
    .app-nav-dropdown {
        position: static;
        box-shadow: none;
        padding: 0 0 0 20px;
        opacity: 1;
        visibility: visible;
        transform: none;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    .app-nav-item.dropdown-open .app-nav-dropdown {
        max-height: 500px;
    }
    
    .app-nav-subdropdown {
        position: static;
        box-shadow: none;
        padding-left: 15px;
        opacity: 1;
        visibility: visible;
        transform: none;
        max-height: 0;
        overflow: hidden;
    }
}

/* Glassmorphism Menu */
.app-nav-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* Dark Menu Variant */
.app-nav-dark {
    background: #1a1a2e;
}

.app-nav-dark .app-nav-link {
    color: white;
}

.app-nav-dark .app-nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

.app-nav-dark .app-nav-logo-text strong,
.app-nav-dark .app-nav-logo-text small {
    color: white;
}