/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-green: #10A37F;
    --dark-bg: #0D0D0D;
    --darker-bg: #000000;
    --card-bg: #1A1A1A;
    --text-primary: #FFFFFF;
    --text-secondary: #B4B4B4;
    --border-color: #2D2D2D;
    --hover-green: #0E8F6F;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    background-color: var(--darker-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 24px 12px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-left: 0;
}

.nav-right {
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    color: var(--text-primary);
    margin-left: -24px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 0.85;
}

.logo-line {
    font-size: 32px;
    font-weight: 900;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.logo-chat {
    letter-spacing: -2px;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.cta-button {
    background-color: var(--primary-green);
    color: white !important;
    padding: 10px 24px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.cta-button:hover {
    background-color: var(--hover-green);
}

/* Hero Section */
.hero {
    padding: 120px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    background-color: var(--card-bg);
    color: var(--primary-green);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}

h1 {
    font-size: 64px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #FFFFFF 0%, #B4B4B4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 40px;
}

.primary-button {
    background-color: var(--primary-green);
    color: white;
    padding: 16px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.primary-button:hover {
    background-color: var(--hover-green);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(16, 163, 127, 0.3);
}

.primary-button.large {
    padding: 20px 48px;
    font-size: 18px;
}

.primary-button.full-width {
    width: 100%;
}

.secondary-button {
    background-color: transparent;
    color: var(--text-primary);
    padding: 16px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.2s;
    display: inline-block;
}

.secondary-button:hover {
    background-color: var(--card-bg);
    border-color: var(--primary-green);
}

.social-proof {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Stats Section */
.stats {
    padding: 60px 0;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stats .container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 16px;
    color: var(--text-secondary);
}

/* Features Section */
.features {
    padding: 120px 0;
}

h2 {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--primary-green);
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(16, 163, 127, 0.1);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 120px 0;
    background-color: var(--darker-bg);
}

.steps {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 32px;
    margin-bottom: 60px;
    align-items: flex-start;
}

.step:last-child {
    margin-bottom: 0;
}

.step-number {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--hover-green) 100%);
    color: white;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 28px;
    margin-bottom: 12px;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    text-align: center;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
}

.cta-section h2 {
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* Signup Section */
.signup {
    padding: 120px 0;
    background-color: var(--dark-bg);
}

.signup-box {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--card-bg);
    padding: 48px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.signup-box h2 {
    text-align: center;
    margin-bottom: 12px;
}

.signup-box > p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.signup-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row input {
    width: 100%;
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--dark-bg);
    color: var(--text-primary);
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-row input:focus {
    outline: none;
    border-color: var(--primary-green);
}

.form-row input::placeholder {
    color: var(--text-secondary);
}

.form-note {
    text-align: center;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 8px;
}

.success-message {
    text-align: center;
    padding: 32px;
}

.success-message h3 {
    font-size: 32px;
    margin-bottom: 16px;
}

.success-message p {
    font-size: 18px;
    color: var(--text-secondary);
}

/* Footer */
footer {
    background-color: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 16px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    margin-bottom: 16px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.2s;
}

.footer-column a:hover {
    color: var(--primary-green);
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 968px) {
    h1 {
        font-size: 48px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats .container {
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    h1 {
        font-size: 36px;
    }

    .hero {
        padding: 80px 0;
    }

    .hero-cta {
        flex-direction: column;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .stats .container {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .nav-left {
        gap: 24px;
    }

    .nav-links {
        gap: 16px;
    }

    .nav-links a {
        display: none;
    }

    .step {
        flex-direction: column;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .signup-box {
        padding: 32px 24px;
    }
}