/* Base Styles */
:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --text: #1f2937;
    --text-light: #6b7280;
    --light-bg: #f9fafb;
    --white: #ffffff;
    --border: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --transition: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: var(--text);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #111827;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.1;
}

h2 {
    font-size: 2.25rem;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-hover);
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 6rem 0;
}

.section-description {
    font-size: 1.25rem;
    max-width: 42rem;
    margin: 0 auto 3rem;
    text-align: center;
    color: var(--text-light);
}

.light-bg {
    background-color: var(--light-bg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 500;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1.5;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    color: var(--primary);
    background-color: transparent;
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background-color: rgba(37, 99, 235, 0.05);
    border-color: var(--primary);
}

.btn-outline {
    color: var(--primary);
    background-color: transparent;
    border: 1px solid var(--primary);
}

.btn-outline:hover {
    background-color: rgba(37, 99, 235, 0.05);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 5rem;
}

.logo {
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: lowercase;
    color: var(--text);
}

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

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

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text);
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    text-align: center;
    background-color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero h1 {
    max-width: 48rem;
    margin: 0 auto 1.5rem;
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -0.025em;
}

.hero .subtitle {
    font-size: 1.5rem;
    max-width: 42rem;
    margin: 0 auto 3rem;
    color: var(--text-light);
    font-weight: 400;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.hero-image {
    position: relative;
    max-width: 64rem;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: white;
    border: 1px solid var(--border);
}

.mockup {
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
}

.mockup-header {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.mockup-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #e5e7eb;
}

.mockup-body {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 0;
}

.mockup-text-line {
    height: 1rem;
    background: #f3f4f6;
    border-radius: 0.25rem;
    width: 100%;
}

.mockup-text-line.short {
    width: 80%;
}

.mockup-text-line.shorter {
    width: 60%;
}

/* Problem Section */
.problem-statement {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.problem-item {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.problem-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.problem-icon {
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
}

/* Steps Section */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.step-number {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    font-size: 1.25rem;
}

/* Why Now Section */
.why-now-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.why-now-image {
    display: flex;
    justify-content: center;
}

.tech-stack {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.tech-item i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.tech-item span {
    font-weight: 500;
    color: var(--text);
}

.feature-list {
    margin: 1.5rem 0;
    padding-left: 1.5rem;
}

.feature-list li {
    margin-bottom: 0.75rem;
    color: var(--text-light);
    position: relative;
    list-style-type: none;
    padding-left: 1.75rem;
}

.feature-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.feature-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

/* Early Access Section */
.early-access-card {
    max-width: 36rem;
    margin: 0 auto;
    background: white;
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow);
    text-align: center;
}

.early-access-card h2 {
    margin-bottom: 1rem;
}

.early-access-card .subtitle {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: var(--text-light);
}

.form-group {
    margin-bottom: 1.25rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.early-access-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.trust-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.trust-badge i {
    color: #10b981;
}

/* Footer */
.footer {
    background-color: #111827;
    color: #9ca3af;
    padding: 4rem 0 2rem;
}

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

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

.footer-copyright {
    font-size: 0.875rem;
    color: #6b7280;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .why-now-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .why-now-image {
        margin-top: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 6rem 0 4rem;
    }
    
    h1 {
        font-size: 2.25rem;
    }
    
    .hero .subtitle {
        font-size: 1.25rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
    
    .section {
        padding: 4rem 0;
    }
    
    .early-access-card {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .section-description {
        font-size: 1.125rem;
    }
    
    .tech-stack {
        grid-template-columns: 1fr;
    }
}