/**
 * Topbar Component Styles
 */

.topbar {
    width: 100%;
    background: var(--bg-secondary);
    padding: var(--space-lg) var(--space-xl);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-lg);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.topbar-logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--accent-color);
    letter-spacing: -0.02em;
    flex-shrink: 0;
}

.topbar-logo .logo-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.topbar-logo .logo-icon {
    width: 28px;
    height: 28px;
    display: block;
}

.topbar-logo .site-name {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    line-height: 1;
    white-space: nowrap;
}

.topbar-nav {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
    margin-left: auto;
    margin-right: var(--space-lg);
}

.topbar-nav .nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    transition: color 0.2s ease;
    white-space: nowrap;
}

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

.topbar-nav .nav-link.active {
    color: var(--accent-color);
}

.topbar-nav .nav-link.nav-signin {
    color: white;
    font-weight: var(--font-weight-medium);
    padding: var(--space-sm) var(--space-lg);
    background: var(--accent-color);
    border: none;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.topbar-nav .nav-link.nav-signin:hover {
    opacity: 0.8;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--space-sm);
    margin-right: 4px;
    border-radius: 6px;
    transition: all 0.2s;
    min-width: 44px;
    min-height: 44px;
}

/* Guest settings icon (gear) */
.settings-icon-btn {
    display: none; /* controlled by JS */
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--space-sm);
    margin-right: 4px;
    border-radius: 6px;
    transition: all 0.2s;
    min-width: 44px;
    min-height: 44px;
}

.settings-icon-btn:hover {
    background: none;
    color: var(--text-primary);
}

.mobile-menu-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

/* User Profile */
.user-profile {
    display: flex;
    align-items: center;
    margin-left: var(--space-lg);
    position: relative;
}

.user-profile-btn {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--space-sm) var(--space-md);
    border-radius: 6px;
    transition: background-color 0.2s;
    font-size: var(--font-size-base);
}

.user-profile-btn:hover {
    background: var(--hover-bg);
}

.user-icon {
    width: 20px;
    height: 20px;
    display: inline-block;
}

.user-name {
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + var(--space-sm));
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    min-width: 150px;
    display: none;
    z-index: 1001;
}

.user-dropdown.show {
    display: block;
}

.user-dropdown-item {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    font-size: var(--font-size-sm);
    transition: background-color 0.2s;
}

.user-dropdown-item:hover {
    background: var(--hover-bg);
}

.user-dropdown-item:first-child {
    border-radius: 8px 8px 0 0;
}

.user-dropdown-item:last-child {
    border-radius: 0 0 8px 8px;
}

.settings-btn {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all 0.2s;
    min-width: 44px;
    min-height: 44px;
}

.settings-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

/* Responsive - Tablet */
@media (max-width: 768px) {
    .topbar {
        padding: 12px 16px;
    }
    
    .topbar-logo .site-name {
        font-size: var(--font-size-base);
    }
    
    .topbar-nav {
        gap: var(--space-lg);
    }
}

/* Responsive - Small Mobile */
@media (max-width: 480px) {
    .topbar-logo .logo-icon {
        width: 24px;
        height: 24px;
    }

    .topbar-logo .site-name {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .topbar-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        box-shadow: var(--shadow-md);
        z-index: 1000;
    }

    .topbar-nav.active {
        display: flex;
    }

    .topbar-nav .nav-link {
        padding: var(--space-sm) 0;
        width: 100%;
    }

    .topbar-nav .nav-link.nav-signin {
        text-align: center;
    }
}

/* Responsive - Mobile */
@media (max-width: 480px) {
    .topbar {
        padding: 12px 16px;
    }
    
    .topbar-logo {
        flex: 0 0 auto;
        order: 1;
    }
    
    .topbar-logo .logo-icon {
        width: 24px;
        height: 24px;
    }
    
    .topbar-logo .site-name {
        display: none;
    }
    
    .topbar-logo span {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
        order: 2;
        margin-left: auto;
        margin-right: 0;
    }
    
    .user-profile {
        order: 3;
        margin-left: var(--space-sm);
    }
    
    .topbar-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        box-shadow: var(--shadow-md);
        z-index: 1000;
        margin-left: 0;
        margin-right: 0;
    }
    
    .topbar-nav.active {
        display: flex;
    }
    
    .topbar-nav .nav-link {
        padding: var(--space-sm) 0;
        width: 100%;
    }
    
    .topbar-nav .nav-link.nav-signin {
        text-align: center;
    }
    
    .user-profile {
        margin-left: var(--space-sm);
    }
    
    .user-name {
        display: none;
    }
}