/* Authentication System Styles */

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: #ffffff;
    margin: 5% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 450px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    animation: slideIn 0.3s ease;
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    text-align: center;
    position: relative;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    color: white;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.close-btn:hover {
    opacity: 1;
}

.modal-body {
    padding: 2rem;
}

/* Auth Form Styles */
.auth-form {
    width: 100%;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

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

.form-group input:invalid {
    border-color: #e74c3c;
}

.form-group input:valid {
    border-color: #27ae60;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.remember-me input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.forgot-password:hover {
    text-decoration: underline;
}

.auth-btn {
    width: 100%;
    padding: 0.8rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 1rem;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

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

.auth-divider {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #e1e5e9;
}

.auth-divider span {
    background: white;
    padding: 0 1rem;
    color: #666;
    font-size: 0.9rem;
}

.social-login {
    margin-bottom: 1.5rem;
}

.social-btn {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e1e5e9;
    background: white;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.google-btn:hover {
    border-color: #db4437;
    background: #db4437;
    color: white;
}

.auth-switch {
    text-align: center;
    font-size: 0.9rem;
    color: #666;
}

.auth-switch a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
}

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

/* Error and Success Messages */
.auth-error,
.auth-success {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    animation: slideDown 0.3s ease;
}

.auth-error {
    background: #fee;
    border: 1px solid #fcc;
    color: #c33;
}

.auth-success {
    background: #efe;
    border: 1px solid #cfc;
    color: #363;
}

/* Toast Notifications */
.toast {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 10001;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s ease;
    min-width: 300px;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-success {
    border-left: 4px solid #27ae60;
    color: #27ae60;
}

.toast-error {
    border-left: 4px solid #e74c3c;
    color: #e74c3c;
}

.toast-info {
    border-left: 4px solid #3498db;
    color: #3498db;
}

/* Profile Dropdown */
.user-profile-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.user-profile-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.profile-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    min-width: 200px;
    z-index: 1000;
    animation: slideDown 0.2s ease;
    overflow: hidden;
}

.dropdown-header {
    padding: 1rem;
    background: #f8f9fa;
    border-bottom: 1px solid #e1e5e9;
}

.dropdown-header strong {
    display: block;
    color: #333;
    font-size: 0.9rem;
}

.dropdown-header small {
    color: #666;
    font-size: 0.8rem;
}

.dropdown-divider {
    height: 1px;
    background: #e1e5e9;
    margin: 0.5rem 0;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1rem;
    color: #333;
    text-decoration: none;
    transition: background 0.2s ease;
}

.dropdown-item:hover {
    background: #f8f9fa;
}

.dropdown-item i {
    width: 16px;
    text-align: center;
}

/* User Content Visibility */
.user-only {
    display: none;
}

.guest-only {
    display: block;
}

/* Responsive Design */
@media (max-width: 768px) {
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .modal-header,
    .modal-body {
        padding: 1.5rem;
    }
    
    .toast {
        right: 1rem;
        left: 1rem;
        min-width: auto;
    }
    
    .profile-dropdown {
        right: -1rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        transform: translateY(-10px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Loading States */
.auth-btn .fa-spinner {
    animation: spin 1s linear infinite;
}

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

/* Form Validation Styles */
.form-group input.error {
    border-color: #e74c3c;
    background: #ffeaea;
}

.form-group input.success {
    border-color: #27ae60;
    background: #eafaf1;
}

.validation-message {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.validation-message.error {
    color: #e74c3c;
}

.validation-message.success {
    color: #27ae60;
}

/* Accessibility */
.modal:focus-within {
    outline: none;
}

.auth-btn:focus,
.form-group input:focus,
.social-btn:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    .modal-content {
        background: #2c3e50;
        color: white;
    }
    
    .form-group input {
        background: #34495e;
        border-color: #4a5568;
        color: white;
    }
    
    .form-group input:focus {
        background: #3a4a5c;
    }
    
    .dropdown-header {
        background: #34495e;
    }
    
    .profile-dropdown {
        background: #2c3e50;
    }
    
    .dropdown-item {
        color: white;
    }
    
    .dropdown-item:hover {
        background: #34495e;
    }
}