/* ==========================================================================
   RenderView - The Execution Collective
   Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables & Custom Properties
   -------------------------------------------------------------------------- */
:root {
    /* Colors */
    --color-primary: #141414;
    --color-secondary: #ffffff;
    --color-accent: #eb8d12;
    --color-accent-light: #f5a842;
    --color-accent-dark: #d17a0a;
    
    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    --font-family-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.1;
    --line-height-base: 1.6;
    --line-height-relaxed: 1.8;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;
    
    /* Layout */
    --max-width-sm: 540px;
    --max-width-md: 720px;
    --max-width-lg: 960px;
    --max-width-xl: 1140px;
    --max-width-2xl: 1400px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-secondary);
    background-color: var(--color-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

img,
svg {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-secondary);
}

p {
    margin-bottom: var(--spacing-md);
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-width-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-4xl);
    }
}

/* --------------------------------------------------------------------------
   Scroll Animations
   -------------------------------------------------------------------------- */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    will-change: opacity, transform;
}

.fade-in-up.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation delays for grid items */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: background-color var(--transition-base), padding var(--transition-base);
}

.nav--scrolled {
    background-color: rgba(20, 20, 20, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--max-width-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    transition: opacity var(--transition-fast);
}

.nav-logo:hover {
    opacity: 0.8;
}

.nav-logo img {
    width: 40px;
    height: 40px;
}

.logo-text {
    color: var(--color-secondary);
}

.nav-toggle {
    display: none;
    padding: var(--spacing-xs);
    color: var(--color-secondary);
    transition: color var(--transition-fast);
}

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

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

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-link--cta {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-sm);
    color: var(--color-accent);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

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

.nav-link--cta::after {
    display: none;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-xl);
        background-color: var(--color-primary);
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition-base), visibility var(--transition-base);
    }
    
    .nav-menu--open {
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        font-size: var(--font-size-xl);
    }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-md);
    position: relative;
    background-color: var(--color-secondary);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(235, 141, 18, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    max-width: var(--max-width-xl);
    text-align: center;
}

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

.hero-logo {
    width: 300px;
    height: 300px;
    margin: 0 auto var(--spacing-lg);
    display: block;
}

@media (min-width: 768px) {
    .hero-logo {
        width: 120px;
        height: 120px;
    }
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
    color: var(--color-primary);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    .hero-logo{
        width: 400px;
        height: 400px;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 4rem;
    }
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: rgba(20, 20, 20, 0.75);
    max-width: 600px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: var(--font-size-xl);
    }
}

/* --------------------------------------------------------------------------
   Concept Section
   -------------------------------------------------------------------------- */
.concept {
    padding: var(--spacing-3xl) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.concept-container {
    max-width: var(--max-width-lg);
    margin: 0 auto;
}

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

.concept-icon {
    margin-bottom: var(--spacing-lg);
    display: inline-block;
}

.concept-statement {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-secondary);
    font-style: italic;
}

@media (min-width: 768px) {
    .concept-statement {
        font-size: var(--font-size-3xl);
    }
}

/* --------------------------------------------------------------------------
   Role of RenderView
   -------------------------------------------------------------------------- */
.role {
    padding: var(--spacing-3xl) var(--spacing-md);
}

.role-container {
    max-width: var(--max-width-xl);
    margin: 0 auto;
}

.role-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.role-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .role-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .role-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.role-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    transition: border-color var(--transition-base), transform var(--transition-base);
}

.role-card:hover {
    border-color: rgba(235, 141, 18, 0.3);
    transform: translateY(-4px);
}

.role-icon {
    margin-bottom: var(--spacing-md);
}

.role-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.role-description {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: var(--line-height-relaxed);
    margin: 0;
}

/* --------------------------------------------------------------------------
   Global Collective
   -------------------------------------------------------------------------- */
.collective {
    padding: var(--spacing-3xl) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.collective-container {
    max-width: var(--max-width-xl);
    margin: 0 auto;
}

.collective-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.collective-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.collective-icon {
    margin-bottom: var(--spacing-lg);
    display: inline-block;
}

.collective-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    width: 100%;
}

@media (min-width: 768px) {
    .collective-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.collective-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    transition: border-color var(--transition-base);
}

.collective-card:hover {
    border-color: rgba(235, 141, 18, 0.3);
}

.collective-card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.collective-card-text {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: var(--line-height-relaxed);
    margin: 0;
}

/* --------------------------------------------------------------------------
   Silicon Valley Parallel
   -------------------------------------------------------------------------- */
.valley {
    padding: var(--spacing-3xl) var(--spacing-md);
}

.valley-container {
    max-width: var(--max-width-lg);
    margin: 0 auto;
}

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

.valley-icon {
    margin-bottom: var(--spacing-lg);
    display: inline-block;
}

.valley-text {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
}

.valley-text:last-of-type {
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .valley-text {
        font-size: var(--font-size-lg);
    }
}

/* --------------------------------------------------------------------------
   Ecosystem Integration
   -------------------------------------------------------------------------- */
.ecosystem {
    padding: var(--spacing-3xl) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.ecosystem-container {
    max-width: var(--max-width-xl);
    margin: 0 auto;
}

.ecosystem-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.ecosystem-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.ecosystem-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .ecosystem-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .ecosystem-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.ecosystem-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    transition: border-color var(--transition-base), transform var(--transition-base);
}

.ecosystem-card:hover {
    border-color: rgba(235, 141, 18, 0.3);
    transform: translateY(-4px);
}

.ecosystem-icon {
    margin-bottom: var(--spacing-md);
}

.ecosystem-card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.ecosystem-card-text {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: var(--line-height-relaxed);
    margin: 0;
}

/* --------------------------------------------------------------------------
   What Makes RenderView Different
   -------------------------------------------------------------------------- */
.different {
    padding: var(--spacing-3xl) var(--spacing-md);
}

.different-container {
    max-width: var(--max-width-lg);
    margin: 0 auto;
}

.different-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.different-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.different-icon {
    margin-bottom: var(--spacing-lg);
    display: inline-block;
}

.different-list {
    width: 100%;
    max-width: 600px;
}

.different-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.different-item:last-child {
    border-bottom: none;
}

.check-icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.different-item span {
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: rgba(255, 255, 255, 0.9);
}

@media (min-width: 768px) {
    .different-item span {
        font-size: var(--font-size-lg);
    }
}

/* --------------------------------------------------------------------------
   Why It Matters
   -------------------------------------------------------------------------- */
.matters {
    padding: var(--spacing-3xl) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.matters-container {
    max-width: var(--max-width-lg);
    margin: 0 auto;
}

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

.matters-icon {
    margin-bottom: var(--spacing-lg);
    display: inline-block;
}

.matters-text {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
}

.matters-text:last-of-type {
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .matters-text {
        font-size: var(--font-size-lg);
    }
}

/* --------------------------------------------------------------------------
   Call to Action
   -------------------------------------------------------------------------- */
.cta {
    padding: var(--spacing-3xl) var(--spacing-md);
    text-align: center;
}

.cta-container {
    max-width: var(--max-width-lg);
    margin: 0 auto;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .cta-title {
        font-size: var(--font-size-4xl);
    }
}

.cta-text {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

@media (min-width: 480px) {
    .cta-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.cta-button--primary {
    background-color: var(--color-accent);
    color: var(--color-primary);
}

.cta-button--primary:hover {
    background-color: var(--color-accent-light);
    transform: translateY(-2px);
}

.cta-button--primary svg {
    transition: transform var(--transition-fast);
}

.cta-button--primary:hover svg {
    transform: translateX(4px);
}

.cta-button--secondary {
    background-color: transparent;
    color: var(--color-secondary);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.cta-button--secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    padding: var(--spacing-2xl) var(--spacing-md) var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
    max-width: var(--max-width-xl);
    margin: 0 auto;
}

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

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr 2fr;
    }
}

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

@media (min-width: 768px) {
    .footer-brand {
        text-align: left;
    }
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

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

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

@media (min-width: 768px) {
    .footer-column {
        text-align: left;
    }
}

.footer-heading {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.6);
}

.footer-column ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

/* --------------------------------------------------------------------------
   Accessibility
   -------------------------------------------------------------------------- */

/* Focus visible states */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-accent);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-accent: #ff9d00;
    }
    
    .role-card,
    .collective-card,
    .ecosystem-card {
        border-width: 2px;
    }
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .nav,
    .cta-buttons {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    section {
        page-break-inside: avoid;
    }
}