* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 60px 40px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

h1 {
    color: #2d3748;
    font-size: 48px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 700;
}

.subtitle {
    color: #4a5568;
    font-size: 24px;
    text-align: center;
    margin-bottom: 40px;
}

.email-signup {
    display: flex;
    gap: 10px;
    margin: 40px auto;
    max-width: 600px;
    flex-wrap: wrap;
    justify-content: center;
}

input[type="email"] {
    flex: 1;
    min-width: 250px;
    padding: 18px 20px;
    font-size: 16px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    outline: none;
    transition: border-color 0.3s;
}

input[type="email"]:focus {
    border-color: #667eea;
}

button {
    padding: 18px 40px;
    font-size: 18px;
    font-weight: 600;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

button:active {
    transform: translateY(0);
}

.info {
    text-align: center;
    color: #718096;
    font-size: 14px;
    margin-top: 10px;
}

.examples {
    margin: 60px 0;
    padding: 40px;
    background: #f7fafc;
    border-radius: 15px;
}

.examples h2 {
    color: #2d3748;
    font-size: 28px;
    margin-bottom: 30px;
    text-align: center;
}

.example {
    background: white;
    padding: 25px;
    margin: 20px 0;
    border-radius: 12px;
    border-left: 4px solid #667eea;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.user-input {
    color: #2d3748;
    font-size: 16px;
    margin-bottom: 12px;
    font-weight: 500;
}

.ai-output {
    color: #4a5568;
    font-size: 16px;
}

code {
    background: #edf2f7;
    padding: 4px 12px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    color: #d6336c;
    font-weight: 600;
}

.benefits {
    margin: 60px 0;
}

.benefits h2 {
    color: #2d3748;
    font-size: 32px;
    margin-bottom: 40px;
    text-align: center;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.benefit {
    text-align: center;
    padding: 30px 20px;
    background: #f7fafc;
    border-radius: 12px;
    transition: transform 0.3s;
}

.benefit:hover {
    transform: translateY(-5px);
}

.benefit h3 {
    color: #2d3748;
    font-size: 24px;
    margin-bottom: 15px;
}

.benefit p {
    color: #4a5568;
    font-size: 16px;
}

.cta-bottom {
    text-align: center;
    margin: 60px 0 40px;
    padding: 50px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    color: white;
}

.cta-bottom h2 {
    font-size: 32px;
    margin-bottom: 30px;
    color: white;
}

.cta-button {
    font-size: 20px;
    padding: 20px 50px;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid #e2e8f0;
    color: #718096;
    font-size: 14px;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 40px 20px;
    }
    
    h1 {
        font-size: 32px;
    }
    
    .subtitle {
        font-size: 18px;
    }
    
    .email-signup {
        flex-direction: column;
    }
    
    input[type="email"] {
        width: 100%;
    }
} 
.demo-section {
    margin: 50px 0;
    padding: 40px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    border-radius: 15px;
    color: white;
}

.demo-section h2 {
    color: white;
    font-size: 32px;
    margin-bottom: 20px;
    text-align: center;
}

.demo-section p {
    color: white;
    font-size: 18px;
    text-align: center;
    margin-bottom: 30px;
}

.demo-input {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 700px;
    margin: 0 auto;
}

textarea {
    width: 100%;
    min-height: 100px;
    padding: 15px;
    font-size: 16px;
    border: 2px solid #fff;
    border-radius: 10px;
    resize: vertical;
    font-family: inherit;
}

.demo-button {
    font-size: 20px;
    padding: 18px 40px;
}

.result-box {
    margin-top: 30px;
    padding: 30px;
    background: white;
    border-radius: 12px;
    color: #2d3748;
}

.result-box h3 {
    color: #2d3748;
    margin-bottom: 15px;
}

.result-box code {
    display: block;
    font-size: 20px;
    padding: 20px;
    background: #edf2f7;
    color: #d6336c;
}
/* Usage info styling */
.usage-info {
    text-align: center;
    padding: 15px 20px;
    margin: 30px auto;
    max-width: 600px;
    background: #fff3cd;
    border: 2px solid #ffc107;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
}

.usage-info strong {
    font-size: 18px;
    font-weight: 700;
}

.usage-info a {
    text-decoration: none;
    border-bottom: 2px solid #667eea;
}

.usage-info a:hover {
    border-bottom-color: #764ba2;
}

/* Google Sign-In Section */
.google-signin-section {
    margin: 40px auto;
    max-width: 400px;
    text-align: center;
}

.login-section {
    display: flex;
    justify-content: center;
    align-items: center;
}

.user-section {
    display: flex;
    justify-content: center;
    align-items: center;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 25px;
    background: #f7fafc;
    border-radius: 10px;
    border: 2px solid #e2e8f0;
}

.user-photo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid #667eea;
}

.user-name {
    font-size: 16px;
    font-weight: 600;
    color: #2d3748;
}

.signout-button {
    padding: 8px 20px;
    font-size: 14px;
    background: #e2e8f0;
    color: #2d3748;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s;
}

.signout-button:hover {
    background: #cbd5e0;
}