/* ============================================
   Reset & Variables
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-orange: #F7931A;
    --primary-orange-dark: #E68317;
    --primary-orange-light: #FFA73D;
    --bg-dark: #0F0F0F;
    --bg-secondary: #1A1A1A;
    --bg-tertiary: #2A2A2A;
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0B0;
    --text-tertiary: #808080;
    --border-color: #333333;
    --accent: #F7931A;

    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ============================================
   Base Styles
   ============================================ */
html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 40px;
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: 20px;
}

a {
    color: var(--primary-orange);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* ============================================
   Navigation
   ============================================ */
.navbar {
    background-color: rgba(15, 15, 15, 0.95);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    height: 60px;
}

.nav-logo {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-orange), var(--primary-orange-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.nav-github {
    color: var(--primary-orange);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    padding: var(--spacing-3xl) var(--spacing-lg);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

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

.hero-title {
    font-size: 72px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-orange), var(--primary-orange-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 32px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--primary-orange);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--primary-orange-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(247, 147, 26, 0.3);
}

.btn-primary.copied {
    background-color: #4CAF50;
}

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

.btn-secondary:hover {
    border-color: var(--primary-orange);
    color: var(--primary-orange);
    box-shadow: 0 4px 16px rgba(247, 147, 26, 0.2);
}

.btn-text {
    flex: 1;
}

.btn-icon {
    font-size: 16px;
}

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

.link-small {
    font-size: 13px;
    color: var(--text-secondary);
}

.link-divider {
    color: var(--text-tertiary);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
}

.lightning-icon {
    font-size: 200px;
    animation: float 3s ease-in-out infinite;
}

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

/* ============================================
   Problem Section
   ============================================ */
.problem {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.problem h2 {
    text-align: center;
    color: var(--primary-orange);
    margin-bottom: var(--spacing-2xl);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.problem-card {
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-tertiary);
    transition: all 0.3s ease;
}

.problem-card:hover {
    border-color: var(--primary-orange);
    background-color: rgba(247, 147, 26, 0.05);
    transform: translateY(-4px);
}

.problem-icon {
    font-size: 36px;
    margin-bottom: var(--spacing-md);
}

.problem-card h3 {
    font-size: 18px;
    margin-bottom: var(--spacing-md);
}

.problem-card p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ============================================
   How It Works Section
   ============================================ */
.how-it-works {
    padding: var(--spacing-3xl) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.how-it-works h2 {
    text-align: center;
    color: var(--primary-orange);
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: var(--spacing-2xl);
}

.workflow {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    padding: var(--spacing-lg) 0;
    align-items: center;
    scroll-behavior: smooth;
}

.workflow::-webkit-scrollbar {
    height: 4px;
}

.workflow::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.workflow::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.workflow-step {
    flex: 0 0 auto;
    width: 140px;
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-secondary);
    text-align: center;
    transition: all 0.2s ease;
}

.workflow-step:hover {
    border-color: var(--primary-orange);
    background-color: rgba(247, 147, 26, 0.05);
}

.step-number {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    background-color: var(--primary-orange);
    color: #000;
    border-radius: 50%;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.workflow-step h3 {
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
}

.workflow-step p {
    font-size: 12px;
    color: var(--text-secondary);
}

.workflow-arrow {
    flex: 0 0 auto;
    font-size: 20px;
    color: var(--text-tertiary);
}

/* ============================================
   Code Examples Section
   ============================================ */
.code-examples {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.code-examples h2 {
    text-align: center;
    color: var(--primary-orange);
    margin-bottom: var(--spacing-lg);
}

.code-tabs {
    max-width: 900px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--primary-orange);
    border-bottom-color: var(--primary-orange);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.code-block {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.code-block.small {
    margin-top: var(--spacing-lg);
}

.code-block pre {
    margin: 0;
    padding: var(--spacing-xl);
    overflow-x: auto;
}

.code-block code {
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-primary);
}

/* Syntax Highlighting */
.keyword {
    color: #9CDCFE;
}

.string {
    color: #CE9178;
}

.property {
    color: #9CDCFE;
}

.function {
    color: #DCDCAA;
}

.comment {
    color: #6A9955;
}

/* ============================================
   MCP Section
   ============================================ */
.mcp {
    padding: var(--spacing-3xl) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.mcp h2 {
    text-align: center;
    color: var(--primary-orange);
    margin-bottom: var(--spacing-lg);
}

.mcp-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    max-width: 1200px;
    margin: 0 auto;
}

.mcp-description p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.mcp-description p:last-child {
    margin-bottom: 0;
}

.mcp-description p strong {
    color: var(--text-primary);
}

.mcp-tools h3 {
    color: var(--primary-orange);
    margin-bottom: var(--spacing-lg);
}

.tools-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.tools-list li {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.tools-list li:hover {
    border-color: var(--primary-orange);
    color: var(--primary-orange);
}

/* ============================================
   Architecture Section
   ============================================ */
.architecture {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.architecture h2 {
    text-align: center;
    color: var(--primary-orange);
    margin-bottom: var(--spacing-3xl);
}

.arch-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
    flex-wrap: wrap;
}

.arch-box {
    padding: var(--spacing-lg) var(--spacing-xl);
    border: 2px solid var(--primary-orange);
    border-radius: var(--radius-lg);
    background-color: rgba(247, 147, 26, 0.1);
    color: var(--primary-orange);
    font-weight: 600;
    font-size: 14px;
    min-width: 140px;
    text-align: center;
}

.arch-arrow {
    font-size: 24px;
    color: var(--text-tertiary);
}

.arch-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
    max-width: 1200px;
    margin: 0 auto;
}

.arch-detail {
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-tertiary);
    transition: all 0.2s ease;
}

.arch-detail:hover {
    border-color: var(--primary-orange);
    background-color: rgba(247, 147, 26, 0.05);
}

.arch-detail h3 {
    color: var(--primary-orange);
    margin-bottom: var(--spacing-md);
}

.arch-detail p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.footer-section h4 {
    color: var(--text-primary);
    font-size: 14px;
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: var(--text-secondary);
    font-size: 13px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--text-secondary);
    font-size: 13px;
    transition: color 0.2s ease;
}

.footer-section a:hover {
    color: var(--primary-orange);
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-tertiary);
    font-size: 12px;
}

.footer-bottom a {
    color: var(--text-tertiary);
}

.footer-bottom a:hover {
    color: var(--primary-orange);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        height: 300px;
    }

    .lightning-icon {
        font-size: 120px;
    }

    .hero-title {
        font-size: 48px;
    }

    .hero-subtitle {
        font-size: 24px;
    }

    .nav-links {
        gap: var(--spacing-lg);
        font-size: 13px;
    }

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

    .mcp-content {
        grid-template-columns: 1fr;
    }

    h2 {
        font-size: 28px;
    }

    .hero-buttons {
        flex-direction: column;
    }

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

    .workflow {
        flex-direction: column;
        overflow-x: visible;
    }

    .workflow-arrow {
        transform: rotate(90deg);
    }

    .workflow-step {
        width: 100%;
    }

    .arch-diagram {
        flex-direction: column;
    }

    .arch-arrow {
        transform: rotate(90deg);
    }

    .tools-list {
        grid-template-columns: 1fr;
    }

    .code-tabs {
        font-size: 12px;
    }

    .tab-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero {
        padding: var(--spacing-2xl) var(--spacing-md);
        min-height: auto;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-description {
        font-size: 14px;
    }

    h2 {
        font-size: 24px;
    }

    .nav-links {
        display: none;
    }

    .problem-card {
        padding: var(--spacing-lg);
    }

    .workflow-step {
        padding: var(--spacing-lg);
    }

    .code-block pre {
        padding: var(--spacing-lg);
        font-size: 11px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .mcp-tools h3 {
        font-size: 16px;
    }

    .tools-list {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .tools-list li {
        padding: var(--spacing-sm);
        font-size: 12px;
    }
}

/* === Use Cases Section === */
.use-cases { padding: 5rem 0; }
.use-cases h2 { text-align: center; font-size: 2.2rem; margin-bottom: 3rem; }

/* Compute Marketplace Hero */
.compute-hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #1a1005 100%);
    border: 1px solid #F7931A;
    border-radius: 16px;
    padding: 3rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
}
.compute-hero::before {
    content: '⚡';
    position: absolute;
    top: -20px;
    right: -10px;
    font-size: 8rem;
    opacity: 0.06;
}
.compute-badge {
    display: inline-block;
    background: #F7931A;
    color: #000;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}
.compute-hero h3 {
    font-size: 1.8rem;
    color: #fff;
    margin-bottom: 1rem;
    line-height: 1.3;
}
.compute-subtitle {
    color: #a0a0b0;
    font-size: 1.1rem;
    line-height: 1.6;
    max-width: 700px;
    margin-bottom: 2rem;
}
.compute-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.compute-step {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}
.compute-num {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    background: #F7931A;
    color: #000;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.85rem;
}
.compute-step p { color: #c0c0d0; font-size: 0.9rem; line-height: 1.5; margin: 0; }
.compute-step em { color: #F7931A; font-style: italic; }
.compute-tagline {
    color: #F7931A;
    font-size: 1.2rem;
    font-weight: 600;
    font-style: italic;
}

/* Security Box */
.security-box {
    background: #12121a;
    border: 2px solid #d4890a;
    border-radius: 12px;
    padding: 2.5rem;
    margin-bottom: 3rem;
}
.security-box h3 { font-size: 1.5rem; color: #F7931A; margin-bottom: 1.5rem; }
.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.2rem;
}
.security-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    background: #1a1a25;
    padding: 1rem;
    border-radius: 8px;
}
.security-icon { font-size: 1.5rem; flex-shrink: 0; }
.security-item strong { color: #fff; display: block; margin-bottom: 0.3rem; }
.security-item p { color: #888; font-size: 0.85rem; line-height: 1.4; margin: 0; }

/* Use Cases Grid */
.usecases-subhead { text-align: center; font-size: 1.4rem; color: #e0e0e0; margin-bottom: 2rem; }
.usecases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}
.usecase-card {
    background: #161620;
    border: 1px solid #2a2a3a;
    border-radius: 12px;
    padding: 1.5rem;
    transition: border-color 0.2s, transform 0.2s;
}
.usecase-card:hover { border-color: #F7931A; transform: translateY(-2px); }
.usecase-icon { font-size: 2rem; display: block; margin-bottom: 0.75rem; }
.usecase-card h4 { color: #fff; font-size: 1.1rem; margin-bottom: 0.5rem; }
.usecase-card p { color: #888; font-size: 0.9rem; line-height: 1.5; margin: 0; }

@media (max-width: 768px) {
    .compute-hero { padding: 2rem 1.5rem; }
    .compute-hero h3 { font-size: 1.4rem; }
    .compute-steps { grid-template-columns: 1fr; }
    .security-grid { grid-template-columns: 1fr; }
    .usecases-grid { grid-template-columns: 1fr; }
}