/* Navbar Styles */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    height: 60px;
}

/* Brand */
.navbar-brand {
    display: flex;
    align-items: center;
}

.brand-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
    font-weight: bold;
    font-size: 1.2em;
    gap: 8px;
}

.brand-emoji {
    font-size: 1.5em;
}

.brand-text {
    font-weight: 700;
}

/* Navigation Menu */
.navbar-menu {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Language Switcher */
.language-dropdown {
    position: relative;
}

.language-switcher {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 8px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.language-switcher:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.language-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    margin-top: 8px;
    overflow: hidden;
}

.language-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: block;
    width: 100%;
    padding: 12px 16px;
    color: #333;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    transition: background-color 0.2s ease;
}

.language-option:hover {
    background-color: #f7fafc;
}

.language-option:first-child {
    border-radius: 8px 8px 0 0;
}

.language-option:last-child {
    border-radius: 0 0 8px 8px;
}

.navbar-anonymous,
.navbar-authenticated {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Navbar Buttons */
.navbar-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.navbar-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.navbar-btn .btn-icon {
    font-size: 1em;
}

/* User Dropdown */
.navbar-user-dropdown {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.user-name {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dropdown-arrow {
    font-size: 0.8em;
    transition: transform 0.3s ease;
}

.user-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    margin-top: 8px;
}

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

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    color: #333;
    text-decoration: none;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    font-size: 0.9em;
    transition: background-color 0.2s ease;
}

.dropdown-item:hover {
    background-color: #f7fafc;
}

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

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

.item-icon {
    font-size: 1em;
    width: 16px;
    text-align: center;
}

/* Auth Modal */
.auth-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.auth-modal {
    background: white;
    border-radius: 16px;
    width: 90%;
    max-width: 400px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.auth-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid #e2e8f0;
}

.auth-modal-title {
    margin: 0;
    color: #2d3748;
    font-size: 1.5em;
    font-weight: 600;
}

.auth-modal-close {
    background: none;
    border: none;
    font-size: 1.8em;
    color: #a0aec0;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.auth-modal-close:hover {
    background: #f7fafc;
    color: #4a5568;
}

.auth-modal-body {
    padding: 24px;
}

/* Auth Forms */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-weight: 500;
    color: #4a5568;
    font-size: 0.9em;
}

.form-group input {
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1em;
    transition: border-color 0.2s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.auth-submit-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.auth-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.auth-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-loader {
    font-size: 1.2em;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.auth-divider {
    text-align: center;
    color: #a0aec0;
    font-size: 0.9em;
    position: relative;
    margin: 8px 0;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #e2e8f0;
    z-index: -1;
}

.auth-divider {
    background: white;
    padding: 0 16px;
}

.google-auth-btn {
    background: white;
    border: 2px solid #e2e8f0;
    color: #4a5568;
    padding: 12px;
    border-radius: 8px;
    font-size: 1em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.google-auth-btn:hover {
    border-color: #cbd5e0;
    background: #f7fafc;
}

.google-icon {
    font-size: 1.2em;
}

.auth-switch {
    text-align: center;
    color: #718096;
    font-size: 0.9em;
    margin: 8px 0 0 0;
}

.auth-switch a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.auth-switch a:hover {
    text-decoration: underline;
}

/* Auth Messages */
.auth-message {
    padding: 12px;
    border-radius: 8px;
    font-size: 0.9em;
    margin-top: 16px;
    text-align: center;
}

.auth-message.error {
    background: #fed7d7;
    color: #c53030;
    border: 1px solid #feb2b2;
}

.auth-message.success {
    background: #c6f6d5;
    color: #2f855a;
    border: 1px solid #9ae6b4;
}

.auth-message.info {
    background: #bee3f8;
    color: #2b6cb0;
    border: 1px solid #90cdf4;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar-container {
        padding: 0 16px;
    }
    
    .brand-text {
        display: none;
    }
    
    .navbar-btn {
        padding: 6px 12px;
        font-size: 0.8em;
    }
    
    .navbar-btn .btn-icon {
        margin-right: 0;
    }
    
    .navbar-authenticated {
        gap: 8px;
    }
    
    .auth-modal {
        width: 95%;
        margin: 20px;
    }
    
    .auth-modal-body {
        padding: 20px;
    }
}