/* CSS Reset and Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg: #0a0a0b;
    --color-bg-elevated: #111113;
    --color-bg-subtle: #18181b;
    --color-border: #27272a;
    --color-border-subtle: #1f1f23;
    --color-text: #fafafa;
    --color-text-muted: #a1a1aa;
    --color-text-subtle: #71717a;
    --color-primary: #22c55e;
    --color-primary-hover: #4ade80;
    --color-accent: #10b981;
    --color-gradient-start: #22c55e;
    --color-gradient-end: #10b981;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
    color: var(--color-text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--color-primary);
    color: #0a0a0b;
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(34, 197, 94, 0.25);
}

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

.btn-ghost:hover {
    background: var(--color-bg-subtle);
    border-color: var(--color-text-subtle);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--spacing-sm) 0;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-subtle);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
}

.logo svg {
    color: var(--color-primary);
}

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

.nav-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.nav-links .btn {
    margin-left: var(--spacing-sm);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(34, 197, 94, 0.1), transparent);
}

.hero .container {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
}

.hero h1 .highlight {
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    height: 400px;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: rgba(34, 197, 94, 0.2);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: rgba(16, 185, 129, 0.15);
    top: 20%;
    right: 10%;
    animation-delay: -2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: rgba(34, 197, 94, 0.15);
    bottom: 20%;
    left: 20%;
    animation-delay: -4s;
}

@keyframes float {
    0%, 100% { transform: translate(-50%, -50%) translateY(0); }
    50% { transform: translate(-50%, -50%) translateY(-20px); }
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-text-subtle);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* Sections */
.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.section-tag {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: 9999px;
    font-size: 0.875rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.125rem;
}

/* Philosophy Section */
.philosophy {
    background: var(--color-bg-elevated);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.philosophy-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.philosophy-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.card-icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

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

/* Quote Section */
.quote-section {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
}

.quotes-carousel {
    position: relative;
    min-height: 200px;
}

.large-quote {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.5s ease;
    pointer-events: none;
}

.large-quote.active {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: var(--spacing-lg);
}

.carousel-dot {
    width: 8px;
    height: 8px;
    background: var(--color-border);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-base);
}

.carousel-dot:hover {
    background: var(--color-text-subtle);
}

.carousel-dot.active {
    background: var(--color-primary);
    transform: scale(1.2);
}

.quote-mark {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-primary);
}

.large-quote p {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
}

.large-quote cite {
    font-style: normal;
    color: var(--color-text-subtle);
    font-size: 1rem;
}

/* Pillars Section */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.pillar-card {
    position: relative;
    padding: var(--spacing-xl);
    background: linear-gradient(180deg, var(--color-bg-elevated) 0%, var(--color-bg) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.pillar-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.4;
    line-height: 1;
    margin-bottom: var(--spacing-md);
}

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

.pillar-line {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
}

.pillar-card:hover .pillar-line {
    transform: scaleX(1);
}

/* Manifesto Section */
.manifesto {
    background: var(--color-bg-elevated);
}

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

.manifesto-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.manifesto-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.manifesto-bullet {
    flex-shrink: 0;
    width: 12px;
    height: 12px;
    margin-top: 0.5rem;
    background: var(--color-primary);
    border-radius: 50%;
}

.manifesto-item p {
    font-size: 1.125rem;
    color: var(--color-text);
    line-height: 1.7;
}

/* Stats Section */
.stats {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border-subtle);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-number {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--color-text-muted);
    font-size: 1rem;
}

/* Pricing Section */
.pricing-section {
    background: var(--color-bg-elevated);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.pricing-card {
    position: relative;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    min-width: 0;
}

.pricing-card:hover {
    border-color: var(--color-text-subtle);
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--color-primary);
    background: linear-gradient(180deg, rgba(34, 197, 94, 0.05) 0%, var(--color-bg) 100%);
}

.pricing-card.corporate {
    border-color: #f59e0b;
    background: linear-gradient(180deg, rgba(245, 158, 11, 0.05) 0%, var(--color-bg) 100%);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: #0a0a0b;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    white-space: nowrap;
}

.pricing-badge.corporate-badge {
    background: #f59e0b;
}

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

.pricing-header h3 {
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.pricing-price {
    margin-bottom: 0.25rem;
}

.price-amount {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
}

.pricing-card.featured .price-amount {
    color: var(--color-primary);
}

.pricing-card.corporate .price-amount {
    color: #f59e0b;
}

.pricing-description {
    text-align: center;
    font-size: 0.8rem;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.pricing-includes {
    font-size: 0.75rem;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.pricing-card.corporate .pricing-includes {
    color: #f59e0b;
}

.pricing-features {
    list-style: none;
    flex: 1;
    margin-bottom: var(--spacing-sm);
}

.pricing-features li {
    position: relative;
    padding-left: 1rem;
    margin-bottom: 0.4rem;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    line-height: 1.4;
}

.pricing-features li::before {
    content: '"';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 600;
}

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

.pricing-note {
    font-size: 0.75rem;
    color: var(--color-text-subtle);
    font-style: italic;
}

.pricing-card.featured .pricing-note {
    color: var(--color-primary);
}

.pricing-card.corporate .pricing-note {
    color: #f59e0b;
}

@media (max-width: 1200px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .pricing-card.featured {
        order: -1;
    }
}

/* Use Case Section */
.usecase-section {
    background: var(--color-bg);
}

.terminal-container {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: #0d0d0d;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem var(--spacing-md);
    background: var(--color-bg-subtle);
    border-bottom: 1px solid var(--color-border);
}

.terminal-buttons {
    display: flex;
    gap: 0.5rem;
}

.terminal-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-btn.red { background: #ff5f56; }
.terminal-btn.yellow { background: #ffbd2e; }
.terminal-btn.green { background: #27ca40; }

.terminal-title {
    color: var(--color-text-subtle);
    font-size: 0.875rem;
    flex: 1;
    text-align: center;
    margin-right: 48px;
}

.terminal-body {
    padding: var(--spacing-md);
    height: 420px;
    overflow-y: auto;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.875rem;
    line-height: 1.7;
    color: #e4e4e7;
}

.terminal-line {
    opacity: 0;
    animation: fadeIn 0.15s ease forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.terminal-body .comment {
    color: #6b7280;
}

.terminal-body .keyword {
    color: #c084fc;
}

.terminal-body .function {
    color: #22c55e;
}

.terminal-body .string {
    color: #fbbf24;
}

.terminal-body .number {
    color: #f472b6;
}

.terminal-body .success {
    color: #22c55e;
}

.terminal-body .cursor {
    color: #22c55e;
    animation: blink 0.7s infinite;
}

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

.usecase-explanation {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.usecase-explanation p {
    font-size: 1rem;
    line-height: 1.7;
}

.usecase-explanation code {
    background: var(--color-bg-subtle);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    color: var(--color-primary);
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.875em;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-elevated) 100%);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: var(--spacing-md);
}

.join-answer {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.join-subtext {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.join-statement {
    display: inline-flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.join-prefix {
    font-size: 0.875rem;
    color: var(--color-text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.join-lie {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
}

/* Footer */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand {
    max-width: 300px;
}

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

.footer-brand p {
    font-size: 0.9375rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-2xl);
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-column h4 {
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

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

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

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .philosophy-grid,
    .pillars-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        position: relative;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 10, 11, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        border-bottom: 1px solid var(--color-border);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        padding: var(--spacing-sm);
        border-radius: var(--radius-md);
    }

    .nav-links a:hover {
        background: var(--color-bg-subtle);
    }

    .mobile-menu-btn {
        display: block;
    }

    .section {
        padding: var(--spacing-2xl) 0;
    }

    .terminal-body {
        height: 350px;
        font-size: 0.75rem;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-xl);
    }

    .footer-links {
        gap: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Animations */
@media (prefers-reduced-motion: no-preference) {
    .philosophy-card,
    .pillar-card,
    .manifesto-item {
        opacity: 0;
        transform: translateY(20px);
        animation: fadeInUp 0.6s ease forwards;
    }

    .philosophy-card:nth-child(1) { animation-delay: 0.1s; }
    .philosophy-card:nth-child(2) { animation-delay: 0.2s; }
    .philosophy-card:nth-child(3) { animation-delay: 0.3s; }

    .pillar-card:nth-child(1) { animation-delay: 0.1s; }
    .pillar-card:nth-child(2) { animation-delay: 0.2s; }
    .pillar-card:nth-child(3) { animation-delay: 0.3s; }

    .manifesto-item:nth-child(1) { animation-delay: 0.1s; }
    .manifesto-item:nth-child(2) { animation-delay: 0.2s; }
    .manifesto-item:nth-child(3) { animation-delay: 0.3s; }
    .manifesto-item:nth-child(4) { animation-delay: 0.4s; }
    .manifesto-item:nth-child(5) { animation-delay: 0.5s; }
}

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

/* Selection */
::selection {
    background: rgba(34, 197, 94, 0.3);
    color: var(--color-text);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-subtle);
}