:root {
    /* Colors */
    --primary: #673ab7;
    --primary-light: #9a67ea;
    --primary-dark: #320b86;
    --accent: #536DFE;
    --accent-light: #8f9bff;
    --accent-dark: #0043ca;
    --background: #f5f5f5;
    --text-primary: rgba(0, 0, 0, 0.87);
    --text-secondary: #333333;
    --white: #ffffff;
    --success: #28a745;
    --error: #dc3545;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Typography */
h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

h2 {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

section {
    padding: var(--spacing-xl) 0;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    padding: var(--spacing-md) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%239a67ea' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.1;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: left;
}

.hero-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.hero .logo {
    width: auto;
    height: 128px;
    margin-bottom: 0;
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    margin-bottom: 0;
}

.hero .subheadline {
    font-size: 1.25rem;
    margin-bottom: 0;
    color: var(--white);
    opacity: 0.9;
}

/* Form Styles */
.beta-signup-form {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: flex;
    gap: var(--spacing-sm);
}

.form-group {
    flex: 1;
    margin-bottom: var(--spacing-sm);
}

input, textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: all 0.3s ease;
}

textarea {
    min-height: 80px;
    resize: vertical;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(103, 58, 183, 0.1);
}

.cta-button {
    background-color: var(--primary);
    color: var(--white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.cta-button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cta-button:active {
    transform: translateY(0);
}

.form-features {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.form-features ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.form-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.form-features li::before {
    content: "✓";
    color: var(--success);
    font-size: 1.1rem;
    line-height: 1;
    flex-shrink: 0;
}

.form-features strong {
    color: var(--text-primary);
}

/* Problem Statement Section */
.problem-statement {
    background-color: var(--white);
    padding: calc(var(--spacing-xl) * 1.5) 0 var(--spacing-xl);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.problem-card {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.problem-card h3 {
    margin-bottom: var(--spacing-sm);
}

.problem-card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    opacity: 0.9;
}

.icon {
    width: 128px;
    height: 128px;
    margin-bottom: var(--spacing-md);
}

/* Features Grid */
.how-it-works {
    background-color: var(--background);
    padding: var(--spacing-xl) 0;
}

.features-grid {
    max-width: 1000px;
    margin: var(--spacing-lg) auto 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.features-row {
    display: grid;
    gap: var(--spacing-md);
}

.features-row:first-child {
    grid-template-columns: repeat(3, 1fr);
}

.features-row:last-child {
    grid-template-columns: repeat(2, 1fr);
    max-width: 660px;
    margin: 0 auto;
}

.feature-card {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.feature-card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    opacity: 0.9;
}

/* Benefits Section */
.benefits {
    background-color: var(--white);
}

.comparison-table {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-sm);
}

.comparison-column {
    padding: var(--spacing-lg);
    background-color: var(--background);
    border-radius: var(--radius-lg);
    transition: transform 0.3s ease;
}

.comparison-column:hover {
    transform: translateY(-4px);
}

.comparison-list {
    list-style: none;
    margin-top: var(--spacing-md);
}

.comparison-list li {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
    position: relative;
    font-size: 1.1rem;
}

.comparison-list.negative li::before {
    content: "✕";
    color: var(--error);
    position: absolute;
    left: 0;
    font-size: 1.4rem;
    line-height: 1;
    top: 0.2rem;
}

.comparison-list.positive li::before {
    content: "✓";
    color: var(--success);
    position: absolute;
    left: 0;
    font-size: 1.4rem;
    line-height: 1;
    top: 0.2rem;
}

/* Final CTA Section */
.final-cta {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    padding: var(--spacing-xl) 0;
    text-align: center;
    color: var(--white);
    position: relative;
}

.final-cta h2,
.final-cta p {
    color: var(--white);
    position: relative;
    z-index: 1;
}

.final-cta .cta-button {
    background-color: var(--white);
    color: var(--primary);
    max-width: 300px;
    margin: var(--spacing-lg) auto 0;
}

.final-cta .cta-button:hover {
    background-color: var(--background);
    color: var(--primary-dark);
}

/* Success Message Styles */
.success-message {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--success);
    border-radius: var(--radius-lg);
    color: var(--white);
}

.success-message h3 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

/* Footer */
.footer {
    background-color: var(--text-secondary);
    color: var(--white);
    padding: var(--spacing-md) 0;
    margin-top: 0;
}

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

.footer-logo {
    display: flex;
    align-items: center;
}

.footer-logo img {
    width: 128px;
    height: auto;
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--spacing-sm);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
}

.copyright {
    color: var(--white);
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 1400px) {
    .hero .container {
        grid-template-columns: 1.5fr;
        gap: var(--spacing-lg);
    }

    .hero-content {
        text-align: center;
    }

    .hero-header {
        flex-direction: column;
        align-items: center;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .problem-grid {
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-lg) 0;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .form-row {
        flex-direction: column;
    }
    
    .comparison-table {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .problem-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
        padding: 0;
    }

    section {
        padding: var(--spacing-lg) 0;
    }

    .features-row:first-child,
    .features-row:last-child {
        grid-template-columns: repeat(2, 1fr);
        max-width: none;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .footer-info {
        align-items: center;
    }

    .footer-links {
        margin-bottom: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .beta-signup-form {
        padding: var(--spacing-md);
    }

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

    .features-row:first-child,
    .features-row:last-child {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 var(--spacing-md);
    }
}