/* Authentication Page Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 400px;
}

.auth-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    text-align: center;
}

.auth-header {
    margin-bottom: 30px;
}

.logo-icon {
    font-size: 48px;
    color: #667eea;
    margin-bottom: 16px;
}

.auth-header h1 {
    font-size: 28px;
    color: #2d3748;
    margin-bottom: 8px;
    font-weight: 700;
}

.auth-subtitle {
    color: #718096;
    font-size: 16px;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

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

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

.auth-form {
    text-align: left;
    margin-bottom: 24px;
}

.auth-form h2 {
    text-align: center;
    color: #2d3748;
    margin-bottom: 24px;
    font-size: 24px;
    font-weight: 600;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: #4a5568;
    font-weight: 500;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.2s ease;
    background: white;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: #f7fafc;
    color: #4a5568;
    border: 2px solid #e2e8f0;
}

.btn-secondary:hover {
    background: #edf2f7;
    border-color: #cbd5e0;
}

.btn-full {
    width: 100%;
}

.auth-toggle {
    padding: 20px 0;
    border-top: 1px solid #e2e8f0;
    margin-top: 20px;
}

.auth-toggle p {
    color: #718096;
    font-size: 14px;
}

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

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

.demo-login {
    background: #f7fafc;
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
}

.demo-login p {
    color: #4a5568;
    font-size: 14px;
    margin-bottom: 12px;
    font-weight: 500;
}

/* Responsive design */
@media (max-width: 480px) {
    .auth-card {
        padding: 30px 20px;
    }
    
    .logo-icon {
        font-size: 40px;
    }
    
    .auth-header h1 {
        font-size: 24px;
    }
    
    .auth-subtitle {
        font-size: 14px;
    }
}

/* Form animations */
.auth-form {
    animation: fadeIn 0.3s ease-in-out;
}

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

/* Input validation styles */
.form-group input:invalid {
    border-color: #e53e3e;
}

.form-group input:valid {
    border-color: #38a169;
}

/* Loading state */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn:disabled:hover {
    transform: none;
    box-shadow: none;
}