:root {
    --bg-primary: #121212;
    --bg-card: #1E1E1E;
    --text-primary: #F5F5F5;
    --text-secondary: #A7A7A7;
    --action-color: #39FF14;
    --danger-color: #FF2D55;
    --border-color: #333333;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 400;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--bg-card);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Email Capture Form */
.email-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.email-input {
    flex: 1;
    padding: 1rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1rem;
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
}

.email-input:focus {
    outline: none;
    border-color: var(--action-color);
}

.cta-button {
    padding: 1rem 2rem;
    background-color: var(--action-color);
    color: var(--bg-primary);
    border: none;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: opacity 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.cta-button:hover {
    opacity: 0.9;
}

.form-message {
    margin-top: 1rem;
    font-size: 0.875rem;
}

.form-message.success {
    color: var(--action-color);
}

.form-message.error {
    color: var(--danger-color);
}

/* Preview Section */
.preview-section {
    padding: 4rem 0;
    background-color: var(--bg-card);
}

.preview-section h2 {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.preview-card {
    background-color: var(--bg-primary);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.preview-card .sender {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.preview-card .message {
    margin-bottom: 1rem;
    line-height: 1.5;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    color: var(--danger-color);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    background-color: rgba(255, 45, 85, 0.1);
    border-radius: 16px;
    border: 1px solid rgba(255, 45, 85, 0.3);
}

/* How It Works */
.how-it-works {
    padding: 4rem 0;
}

.how-it-works h2 {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    text-align: center;
}

.step {
    padding: 0 1rem;
}

.step-number {
    display: inline-block;
    width: 48px;
    height: 48px;
    line-height: 48px;
    background-color: var(--bg-card);
    border: 2px solid var(--action-color);
    color: var(--action-color);
    border-radius: 50%;
    font-weight: 700;
    margin-bottom: 1rem;
}

.step h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.step p {
    color: var(--text-secondary);
}

/* Footer */
footer {
    background-color: var(--bg-card);
    padding: 2rem 0;
    margin-top: 4rem;
    border-top: 1px solid var(--border-color);
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

footer p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--text-primary);
}

/* Content Pages */
.content-page {
    padding: 4rem 0;
    max-width: 800px;
    margin: 0 auto;
}

.content-page h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.content-page h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-page p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.content-page ul {
    margin: 1rem 0 1rem 2rem;
    color: var(--text-secondary);
}

.content-page a {
    color: var(--action-color);
    text-decoration: none;
}

.content-page a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero .subtitle {
        font-size: 1rem;
    }
    
    .email-form {
        flex-direction: column;
    }
    
    .preview-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    footer .container {
        flex-direction: column;
        text-align: center;
    }
}