:root {
    /* Colors - Refined neutral palette with warm accents */
    --color-background: #fafaf8;
    --color-surface: #ffffff;
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #666666;
    --color-text-tertiary: #999999;
    --color-accent: #8b5a3c;
    --color-accent-light: #a67c5d;
    --color-border: #e5e5e0;
    --color-border-light: #f0f0ed;
    
    /* Typography */
    --font-display: 'Cormorant Garamond', serif;
    --font-mono: 'IBM Plex Mono', monospace;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Layout */
    --container-max: 1200px;
    --border-radius: 2px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--color-background);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* Grain Overlay */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.03;
    z-index: 9999;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

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

/* Header */
.header {
    position: sticky;
    top: 0;
    background: rgba(250, 250, 248, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    text-decoration: none;
}

.logo-icon {
    font-size: 1.75rem;
}

.nav {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.2s;
    letter-spacing: 0.02em;
}

.nav-link:hover {
    color: var(--color-accent);
}

.nav-link-cta {
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: 0.5rem 1rem;
}

.nav-link-cta:hover {
    background: var(--color-accent);
    color: white;
}

/* Hero Section */
.hero {
    padding: var(--spacing-xl) 0;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 2rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.6s ease-out;
    letter-spacing: 0.05em;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.6s ease-out 0.1s backwards;
}

.hero-title-accent {
    font-weight: 600;
    color: var(--color-accent);
    font-style: italic;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 540px;
    animation: fadeInUp 0.6s ease-out 0.2s backwards;
}

.hero-cta {
    animation: fadeInUp 0.6s ease-out 0.3s backwards;
}

.hero-cta-note {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    margin-top: var(--spacing-sm);
    letter-spacing: 0.02em;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Terminal Visual */
.hero-visual {
    animation: fadeInUp 0.6s ease-out 0.4s backwards;
}

.terminal-window {
    background: var(--color-text-primary);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.terminal-header {
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    gap: 0.5rem;
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
}

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: #a0a0a0;
}

.terminal-line {
    margin-bottom: 1rem;
    display: flex;
    gap: 0.75rem;
}

.terminal-prompt {
    color: var(--color-accent-light);
}

.terminal-ai {
    color: #6eb7ff;
}

.terminal-text {
    flex: 1;
}

.terminal-response {
    animation: typingResponse 1s ease-out 1s backwards;
}

@keyframes typingResponse {
    from { opacity: 0; }
    to { opacity: 1; }
}

.terminal-cursor {
    display: inline-block;
    width: 8px;
    height: 16px;
    background: var(--color-accent-light);
    animation: blink 1s infinite;
    margin-left: 0.5rem;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Companies Section */
.companies {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.companies-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.companies-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.05em;
}

.btn-primary {
    background: var(--color-accent);
    color: white;
    border: 2px solid var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(139, 90, 60, 0.2);
}

/* Features Section */
.features {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}

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

.feature-card {
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.05);
}

.feature-card-primary {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #f5f0eb 0%, var(--color-surface) 100%);
}

.feature-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.1em;
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.feature-list {
    list-style: none;
}

.feature-list li {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* How It Works Section */
.how-it-works {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--color-background) 0%, #f5f0eb 100%);
}

.architecture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.architecture-step {
    text-align: center;
}

.architecture-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-accent);
    transition: all 0.3s;
}

.architecture-step:hover .architecture-icon {
    border-color: var(--color-accent);
    background: var(--color-accent);
    color: white;
    transform: scale(1.1);
}

.architecture-step h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.architecture-step p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* USP Section */
.usp {
    padding: var(--spacing-xl) 0;
}

.usp-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.usp-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.usp-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 400;
    margin-bottom: var(--spacing-lg);
}

.usp-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    text-align: left;
    margin-top: var(--spacing-lg);
}

.usp-item h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.usp-item p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Waitlist Section */
.waitlist {
    padding: var(--spacing-xl) 0;
    background: var(--color-text-primary);
    color: white;
}

.waitlist-content {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
}

.waitlist-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
}

.waitlist-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.waitlist-form {
    margin-bottom: var(--spacing-md);
}

.form-group {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 500px;
    margin: 0 auto;
}

.form-input {
    flex: 1;
    padding: 1rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    color: white;
    outline: none;
    transition: all 0.2s;
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-input:focus {
    border-color: var(--color-accent-light);
    background: rgba(255, 255, 255, 0.1);
}

.btn-submit {
    background: var(--color-accent);
    color: white;
    border: 2px solid var(--color-accent);
    padding: 1rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    letter-spacing: 0.05em;
}

.btn-submit:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
    transform: translateY(-2px);
}

.form-note {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    margin-top: var(--spacing-sm);
}

.waitlist-success {
    display: none;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.9);
    margin-top: var(--spacing-md);
}

.waitlist-success.show {
    display: flex;
}

.waitlist-success svg {
    color: var(--color-accent-light);
}

/* Footer */
.footer {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

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

.footer-tagline {
    font-family: var(--font-display);
    font-style: italic;
    color: var(--color-text-secondary);
}

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

.footer-column h4 {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.footer-column a {
    display: block;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-light);
    text-align: center;
}

.footer-bottom p {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card-primary {
        grid-column: 1;
    }
    
    .architecture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .usp-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .nav {
        gap: var(--spacing-sm);
    }
    
    .nav-link {
        font-size: 0.75rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .usp-title {
        font-size: 2rem;
    }
    
    .waitlist-title {
        font-size: 2rem;
    }
    
    .form-group {
        flex-direction: column;
    }
    
    .architecture-grid {
        grid-template-columns: 1fr;
    }
}