:root {
    --bg-base: #e5e5e1;
    --bg-panel: #f2f2ee;
    --bg-code: #eaeaeb;
    --text-primary: #121212;
    --text-secondary: #4a4a46;
    --text-muted: #585853;
    --border-color: #b5b5b0;
    --border-accent: #121212;
    --accent-green: #00704a;
    --accent-blue: #1d4ed8;
    --accent-amber: #d97706;
    --accent-amber-text: #92400e;
    --accent-red: #b91c1c;
    --font-sans: 'Outfit', 'Outfit Fallback', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'Space Mono', 'Space Mono Fallback', ui-monospace, SFMono-Regular, Menlo, monospace;
    --shadow-brutal: 3px 3px 0px var(--border-accent);
  }

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

  body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    padding: 1.5rem;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
  }

  .container {
    max-width: 76rem;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
  }

  /* Control Panel Deck Header */
  header {
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    padding: 0.75rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
  }

  .header-nav {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    font-size: 0.75rem;
    flex-wrap: wrap;
  }

  .header-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 700;
    transition: color 0.15s ease;
  }

  .header-nav a:hover {
    color: var(--text-primary);
    text-decoration: underline;
  }

  .status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-green);
  }

  .status-pulse {
    width: 8px;
    height: 8px;
    background-color: var(--accent-green);
    border-radius: 50%;
    display: inline-block;
    animation: pulse 2s infinite;
  }

  @keyframes pulse {
    0% { transform: scale(0.9); opacity: 1; box-shadow: 0 0 0 0 rgba(0, 135, 90, 0.4); }
    70% { transform: scale(1); opacity: 0.8; box-shadow: 0 0 0 6px rgba(0, 135, 90, 0); }
    100% { transform: scale(0.9); opacity: 1; box-shadow: 0 0 0 0 rgba(0, 135, 90, 0); }
  }

  .header-right {
    color: var(--text-muted);
  }

  /* Core Layout Grid */
  .grid-hero {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 1.5rem;
  }

  @media (max-width: 960px) {
    .grid-hero {
      grid-template-columns: 1fr;
    }
  }

  /* Sections and Cards */
  .card {
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    position: relative;
  }

  .card-header-sub {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .card-header-sub::after {
    content: '';
    flex-grow: 1;
    margin-left: 1rem;
    border-bottom: 1px dotted var(--border-color);
  }

  .card-title {
    font-size: 2.1rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
  }

  .card-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
  }

  /* Action Buttons */
  .actions-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
  }

  .btn {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-primary);
    background-color: transparent;
    border: 1px solid var(--border-accent);
    padding: 0.6rem 1.2rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.15s ease;
  }

  .btn:hover {
    background-color: var(--text-primary);
    color: var(--bg-panel);
    transform: translate(-1px, -1px);
    box-shadow: var(--shadow-brutal);
  }

  .btn:active {
    transform: translate(1px, 1px);
    box-shadow: none;
  }

  .btn-accent {
    background-color: var(--text-primary);
    color: var(--bg-panel);
  }

  .btn-accent:hover {
    background-color: transparent;
    color: var(--text-primary);
  }

  /* Metrics Grid */
  .metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
  }

  @media (max-width: 600px) {
    .metrics-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  .metric-item {
    display: flex;
    flex-direction: column;
  }

  .metric-value {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-primary);
  }

  .metric-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    font-weight: 500;
  }

  /* Live Fleet Monitor (Right Column) */
  .monitor-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    margin-bottom: 1.5rem;
  }

  .monitor-table th, .monitor-table td {
    padding: 0.6rem 0.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
  }

  .monitor-table th {
    color: var(--text-muted);
    font-weight: normal;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
  }

  .monitor-table tr:last-child td {
    border-bottom: none;
  }

  .profile-name {
    font-weight: 700;
    color: var(--text-primary);
  }

  .badge-status {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 700;
  }

  .badge-status.active {
    color: var(--accent-green);
  }

  .badge-status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: currentColor;
  }

  /* Dynamic Logs Window */
  .log-console {
    background-color: var(--bg-code);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.75rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    height: 160px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    box-shadow: inset 1px 1px 3px rgba(0,0,0,0.05);
  }

  .log-entry {
    display: flex;
    gap: 0.75rem;
    white-space: pre-wrap;
    word-break: break-all;
  }

  .log-ts {
    color: var(--text-muted);
    flex-shrink: 0;
  }

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

  .log-msg.router {
    color: var(--accent-blue);
  }

  .log-msg.daemon {
    color: var(--accent-green);
  }

  .log-msg.system {
    color: var(--accent-amber-text);
    font-weight: 700;
  }

  /* Section Titles */
  .section-title-wrap {
    margin-top: 1rem;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    border-bottom: 2px solid var(--border-accent);
    padding-bottom: 0.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .section-title {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.01em;
  }

  .section-subtitle-mono {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
  }

  /* Demos 2x2 Showcase Grid */
  .demos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  @media (max-width: 860px) {
    .demos-grid {
      grid-template-columns: 1fr;
    }
  }

  .demo-card {
    border: 1px solid var(--border-color);
    background-color: #ffffff;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    box-shadow: var(--shadow-brutal);
  }

  .demo-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
  }

  .demo-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
  }

  .demo-badge {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border: 1px solid var(--border-color);
    background: var(--bg-panel);
    color: var(--accent-blue);
  }

  .demo-badge.perf {
    color: var(--accent-green);
  }

  .demo-badge.auth {
    color: var(--accent-amber-text);
  }

  .demo-img-box {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    background: #000000;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .demo-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  .demo-caption {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.45;
  }

  /* Recipes Section Grid */
  .recipes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  @media (max-width: 900px) {
    .recipes-grid {
      grid-template-columns: 1fr;
    }
  }

  .recipe-card {
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    transition: transform 0.15s ease;
  }

  .recipe-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-accent);
  }

  .recipe-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .recipe-name {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
  }

  .recipe-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.15rem 0.45rem;
    border: 1px solid var(--border-color);
    background-color: #ffffff;
    font-weight: 700;
  }

  .recipe-tag.verified {
    color: var(--accent-green);
    border-color: var(--accent-green);
  }

  .recipe-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.4;
    flex-grow: 1;
  }

  .recipe-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px dotted var(--border-color);
    padding-top: 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
  }

  /* Ecosystem / Listings Grid */
  .ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  @media (max-width: 900px) {
    .ecosystem-grid {
      grid-template-columns: 1fr;
    }
  }

  .ecosystem-card {
    border: 1px solid var(--border-color);
    background-color: #ffffff;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: 2px 2px 0px var(--border-accent);
    text-decoration: none;
    color: inherit;
    transition: transform 0.15s ease;
  }

  .ecosystem-card:hover {
    transform: translate(-1px, -1px);
    box-shadow: var(--shadow-brutal);
  }

  .ecosystem-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-blue);
    font-weight: 700;
    text-transform: uppercase;
  }

  .ecosystem-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
  }

  .ecosystem-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
  }

  /* MCP Quickstart Deck */
  .mcp-deck {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  @media (max-width: 860px) {
    .mcp-deck {
      grid-template-columns: 1fr;
    }
  }

  .mcp-box {
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .code-snippet {
    background-color: var(--text-primary);
    color: #e5e5e1;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    white-space: pre;
    line-height: 1.5;
  }

  /* CLI Walkthrough Tabs */
  .cli-tabs {
    display: flex;
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .cli-tab {
    flex: 1;
    min-width: 100px;
    text-align: center;
    padding: 0.75rem 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    background-color: transparent;
    border: none;
    border-right: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: all 0.15s ease;
    white-space: nowrap;
  }

  .cli-tab:last-child {
    border-right: none;
  }

  .cli-tab:hover {
    background-color: var(--bg-code);
    color: var(--text-primary);
  }

  .cli-tab.active {
    background-color: var(--text-primary);
    color: var(--bg-panel);
  }

  /* Code output simulator window */
  .cli-panel {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    border-top: none;
    background-color: var(--bg-panel);
  }

  .cli-desc {
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-panel);
  }

  .cli-terminal {
    background-color: var(--text-primary);
    color: #e5e5e1;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 1.25rem;
    overflow-x: auto;
    min-height: 220px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .cli-input-line {
    color: #a3e635; /* bright terminal green */
    font-weight: 700;
  }

  .cli-input-line::before {
    content: '$ ';
    color: #f43f5e; /* rose color */
  }

  .cli-output-line {
    white-space: pre;
    color: #cbd5e1;
    line-height: 1.45;
  }

  /* Playground Split Grid */
  .grid-playground {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 1.5rem;
  }

  @media (max-width: 900px) {
    .grid-playground {
      grid-template-columns: 1fr;
    }
  }

  .form-group {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
  }

  .form-group label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-secondary);
  }

  .form-control {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-base);
    color: var(--text-primary);
    outline: none;
    border-radius: 0;
    transition: border-color 0.15s ease;
  }

  .form-control:focus {
    border-color: var(--border-accent);
  }

  .payload-tabs {
    display: flex;
    border: 1px solid var(--border-color);
    border-bottom: none;
    background-color: var(--bg-panel);
  }

  .payload-tab {
    flex: 1;
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    background: transparent;
    border: none;
    border-right: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
  }

  .payload-tab:last-child {
    border-right: none;
  }

  .payload-tab.active {
    background-color: var(--text-primary);
    color: var(--bg-panel);
  }

  .code-container {
    background-color: var(--text-primary);
    color: #e5e5e1;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 1.25rem;
    border: 1px solid var(--border-color);
    overflow-x: auto;
    white-space: pre;
    line-height: 1.45;
    min-height: 140px;
  }

  .code-accent-key { color: #38bdf8; }
  .code-accent-val { color: #facc15; }
  .code-accent-num { color: #f43f5e; }
  .code-accent-method { color: #4ade80; }

  .response-deck {
    margin-top: 1rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    display: flex;
    flex-direction: column;
  }

  .response-deck-title {
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .response-body {
    background-color: var(--bg-code);
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    min-height: 110px;
    max-height: 190px;
    overflow-y: auto;
    white-space: pre-wrap;
  }

  .response-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
  }

  .response-status-dot.loading {
    background-color: var(--accent-amber-text);
    animation: pulse 1s infinite;
  }

  .response-status-dot.success {
    background-color: var(--accent-green);
  }

  /* Architecture flow diagram panel */
  .diagram-deck {
    border: 1px solid var(--border-color);
    background-color: #ffffff;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .diagram-visual {
    width: 100%;
    overflow-x: auto;
    display: flex;
    justify-content: center;
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
  }

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

  .diagram-notes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  @media (max-width: 800px) {
    .diagram-notes {
      grid-template-columns: 1fr;
    }
  }

  .diagram-note-item {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
  }

  .diagram-note-h {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
  }

  .diagram-note-p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.45;
  }

  /* FAQ Accordion */
  .faq-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .faq-item {
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
  }

  .faq-trigger {
    width: 100%;
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: transparent;
    border: none;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
  }

  .faq-trigger-icon {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: transform 0.2s ease;
  }

  .faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: var(--bg-panel);
    border-top: 0px solid var(--border-color);
  }

  .faq-inner {
    padding: 0 1.5rem 1.25rem 1.5rem;
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
  }

  .faq-item.active .faq-content {
    border-top-width: 1px;
  }

  .faq-item.active .faq-trigger-icon {
    transform: rotate(45deg);
    color: var(--text-primary);
  }

  /* Footer */
  footer {
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    padding: 1.5rem;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
    justify-content: center;
  }

  .footer-links {
    display: flex;
    gap: 1.5rem;
    font-weight: 700;
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer-links a {
    color: var(--text-primary);
    text-decoration: none;
  }

  .footer-links a:hover {
    text-decoration: underline;
  }

  .disclaimer {
    font-size: 0.7rem;
    max-width: 38rem;
    line-height: 1.4;
  }