/* Navigation Menu Styles - AI Native Theme */
/* Consolidated nav styles - remove duplicates from ai-native.css and scale-dark.css */

/* Navigation - Fixed top bar */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--nav-bg, rgb(var(--color-surface)));
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 20px var(--nav-shadow, rgba(var(--color-overlay), 0.3));
    border-bottom: 1px solid rgba(var(--color-border), var(--border-opacity));
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.logo span {
    background: var(--logo-gradient, var(--gradient-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-image {
    height: 50px;
    width: auto;
    display: block;
}

/* Nav Links */
.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links .nav-auth-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links a {
    text-decoration: none;
    color: rgb(var(--color-text-secondary));
    font-weight: 500;
    transition: color 0.3s ease;
    text-shadow: 0 1px 3px rgba(var(--color-overlay), 0.8);
}

.nav-links a:hover {
    color: rgb(var(--color-text));
}

.nav-links a.active {
    color: rgb(var(--color-primary));
    font-weight: 600;
}

/* Nav Avatar */
.nav-avatar-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.nav-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
    transition: all 0.3s ease;
}

.nav-avatar:hover {
    transform: scale(1.1);
}

/* Auth Button */
.auth-btn {
    color: rgb(var(--color-text-secondary));
    text-shadow: 0 1px 3px rgba(var(--color-overlay), 0.8);
}

.auth-btn:hover {
    color: rgb(var(--color-text));
}

/* Contact Button */
.contact-btn {
    background: var(--color-primary);
    color: rgb(var(--color-background));
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(var(--color-primary), 0.3);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: rgb(var(--color-text));
    transition: all 0.3s;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }

    .logo span {
        font-size: 1.1rem;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        background: rgb(var(--color-surface));
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 20px 60px var(--nav-shadow, rgba(var(--color-overlay), 0.5));
        transition: right 0.3s;
        min-width: 200px;
        border-radius: var(--radius-xl) 0 var(--radius-xl) var(--radius-xl);
        z-index: 1001;
        border: 1px solid rgba(var(--color-border), var(--border-opacity));
    }

    .nav-links.active {
        right: 10px;
    }

    .mobile-menu-toggle {
        display: flex;
        z-index: 1002;
        flex-shrink: 0;
    }

    .nav-links .nav-auth-item .nav-avatar-link {
        display: none !important;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 0.5rem 0;
        border-bottom: 1px solid rgba(var(--color-border), var(--border-opacity));
    }

    .nav-links li:last-child a {
        border-bottom: none;
    }
}

/* Navigation scroll effect */
nav.scrolled {
    box-shadow: 0 2px 20px var(--nav-shadow, rgba(var(--color-overlay), 0.4));
    background: var(--nav-scrolled-bg, rgb(var(--color-surface)));
}

/* ============================================
   User Dropdown Menu
   ============================================ */

.nav-user-dropdown {
    position: relative;
    display: inline-block;
}

.nav-avatar-btn {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    width: auto;
}

.nav-avatar-btn .nav-avatar {
    width: 32px;
    height: 32px;
    border: 2px solid rgba(var(--color-border), var(--border-opacity));
    transition: border-color 0.2s ease;
}

.nav-avatar-btn:hover .nav-avatar,
.nav-avatar-btn:focus .nav-avatar {
    border-color: rgb(var(--color-primary));
}

.nav-avatar-btn.active .nav-avatar {
    border-color: rgb(var(--color-primary));
    box-shadow: 0 0 0 2px rgba(var(--color-primary), 0.3);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    min-width: 180px;
    background: rgb(var(--color-surface-elevated));
    border: 1px solid rgba(var(--color-border), var(--border-opacity));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    z-index: 1100;
    overflow: hidden;
}

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

.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: rgb(var(--color-text));
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    transition: background-color 0.15s ease;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.nav-dropdown-item:hover {
    background: rgba(var(--color-primary), 0.1);
    color: rgb(var(--color-text));
}

.nav-dropdown-item .dropdown-icon {
    font-size: 1rem;
    width: 1.25rem;
    text-align: center;
}

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

.nav-logout-btn {
    color: rgb(var(--color-error));
}

.nav-logout-btn:hover {
    background: rgba(var(--color-error), 0.1);
    color: rgb(var(--color-error));
}

/* Hide admin-only items by default */
.nav-admin-only {
    display: none;
}

.nav-admin-only.visible {
    display: flex;
}

/* Mobile dropdown adjustments */
@media (max-width: 768px) {
    .nav-user-dropdown {
        display: none;
    }

    /* Show profile link in mobile menu instead */
    .nav-links.active .nav-user-dropdown {
        display: block;
        width: 100%;
    }

    .nav-links.active .nav-avatar-btn {
        display: none;
    }

    .nav-links.active .nav-dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: transparent;
        border: none;
        margin: 0;
        padding: 0;
    }

    .nav-links.active .nav-dropdown-item {
        padding: 0.5rem 0;
        border-bottom: 1px solid rgba(var(--color-border), var(--border-opacity));
    }

    .nav-links.active .nav-dropdown-divider {
        display: none;
    }
}