@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;1,400;1,500&family=DM+Mono:wght@300;400&display=swap');

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

  :root {
    --bg: #F7F4EF;
    --bg2: #F0EDE7;
    --bg3: #E8E4DC;
    --fg: #1A1814;
    --mid: #4A4642;
    --dim: #7A7570;
    --accent: #C4A882;
    --accent2: #D4987A;
    --border: rgba(26,24,20,0.1);
    --serif: 'Lora', Georgia, serif;
    --mono: 'DM Mono', monospace;
  }

  html, body {
    height: 100%;
    overflow: hidden;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--serif);
    -webkit-font-smoothing: antialiased;
  }

  /* LAYOUT */
  .workspace {
    display: grid;
    grid-template-columns: 280px 1fr;
    height: 100vh;
    overflow: hidden;
  }

  /* LEFT PANEL */
  .panel {
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    background: var(--bg2);
    overflow-y: auto;
    padding: 0;
  }

  .panel-header {
    padding: 36px 28px 28px;
    border-bottom: 1px solid var(--border);
  }

  .back-link {
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 300;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--dim);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 24px;
    transition: color 0.2s;
  }
  .back-link:hover { color: var(--fg); }

  .panel-title {
    font-family: var(--serif);
    font-size: 17px;
    font-weight: 500;
    color: var(--fg);
    line-height: 1.2;
    margin-bottom: 6px;
  }

  .panel-subtitle {
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 300;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--dim);
  }

  /* MODULE NAV */
  .module-nav {
    padding: 32px 28px;
    flex: 1;
  }

  .module-nav-label {
    font-family: var(--mono);
    font-size: 8px;
    font-weight: 300;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 20px;
    display: block;
  }

  .module-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .module-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 4px;
    cursor: pointer;
    border: none;
    background: transparent;
    text-align: left;
    width: 100%;
    transition: background 0.15s;
    position: relative;
  }

  .module-btn:hover { background: rgba(26,24,20,0.05); }

  .module-btn.active {
    background: var(--bg);
    border: 1px solid var(--border);
  }

  .module-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    border: 1.5px solid var(--dim);
    background: transparent;
    flex-shrink: 0;
    transition: all 0.2s;
  }

  .module-btn.active .module-dot {
    background: var(--fg);
    border-color: var(--fg);
  }

  .module-btn-text {
    font-family: var(--serif);
    font-size: 14px;
    font-weight: 400;
    color: var(--dim);
    transition: color 0.2s;
    line-height: 1.2;
  }

  .module-btn.active .module-btn-text {
    color: var(--fg);
    font-weight: 500;
  }

  .module-btn-num {
    font-family: var(--mono);
    font-size: 8px;
    font-weight: 300;
    letter-spacing: 0.1em;
    color: var(--dim);
    margin-left: auto;
  }

  /* PANEL FOOTER */
  .panel-footer {
    padding: 24px 28px;
    border-top: 1px solid var(--border);
  }

  .panel-meta-row {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .panel-meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .panel-meta-label {
    font-family: var(--mono);
    font-size: 8px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--dim);
  }

  .panel-meta-value {
    font-family: var(--serif);
    font-size: 13px;
    color: var(--mid);
    font-weight: 400;
  }

  /* RIGHT CONTENT */
  .content {
    overflow-y: auto;
    height: 100vh;
    position: relative;
  }

  .module-pane {
    display: none;
    animation: fadeIn 0.35s ease;
  }

  .module-pane.active { display: block; }

  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* MODULE HERO */
  .mod-hero {
    padding: 72px 72px 64px;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
  }

  .mod-hero-eyebrow {
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 300;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 28px;
  }

  .mod-hero-title {
    font-family: var(--serif);
    font-size: clamp(36px, 4.5vw, 60px);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.01em;
    color: var(--fg);
    margin-bottom: 24px;
    max-width: 680px;
  }

  .mod-hero-title em { font-style: italic; color: var(--mid); }

  .mod-hero-sub {
    font-family: var(--serif);
    font-size: 17px;
    font-weight: 400;
    color: var(--mid);
    line-height: 1.75;
    max-width: 560px;
    margin-bottom: 40px;
  }

  .mod-hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .mod-tag {
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 300;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--dim);
    background: rgba(26,24,20,0.05);
    padding: 5px 12px;
    border-radius: 2px;
  }

  /* CONTENT BLOCKS */
  .content-block {
    padding: 64px 72px;
    border-bottom: 1px solid var(--border);
  }

  .content-block:last-child { border-bottom: none; }

  .block-label {
    font-family: var(--mono);
    font-size: 9px;
    font-weight: 300;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .block-label::after {
    content: '';
    display: block;
    width: 48px;
    height: 1px;
    background: var(--border);
  }

  .block-title {
    font-family: var(--serif);
    font-size: clamp(22px, 2.5vw, 32px);
    font-weight: 400;
    color: var(--fg);
    letter-spacing: -0.01em;
    line-height: 1.2;
    margin-bottom: 20px;
  }

  .block-body {
    font-family: var(--serif);
    font-size: 16px;
    color: var(--mid);
    line-height: 1.8;
    max-width: 640px;
  }

  /* VISUAL PLACEHOLDER */
  .visual-frame {
    width: 100%;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 6px;
    margin: 40px 0;
    overflow: hidden;
    position: relative;
  }

  .visual-frame-inner {
    padding: 56px 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    position: relative;
  }

  .visual-grid-bg {
    position: absolute;
    inset: 0;
    opacity: 0.08;
    background-image:
      linear-gradient(rgba(26,24,20,1) 1px, transparent 1px),
      linear-gradient(90deg, rgba(26,24,20,1) 1px, transparent 1px);
    background-size: 32px 32px;
  }

  .visual-frame-label {
    position: absolute;
    bottom: 16px;
    right: 20px;
    font-family: var(--mono);
    font-size: 8px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--dim);
  }

  /* FLOW DIAGRAM */
  .flow {
    display: flex;
    align-items: center;
    gap: 0;
    margin: 40px 0;
    flex-wrap: wrap;
  }

  .flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 100px;
  }

  .flow-node {
    width: 48px;
    height: 48px;
    border: 1.5px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    font-family: var(--mono);
    font-size: 9px;
    color: var(--dim);
    position: relative;
    z-index: 1;
  }

  .flow-node.active {
    border-color: var(--fg);
    background: var(--fg);
    color: var(--bg);
  }

  .flow-label {
    font-family: var(--mono);
    font-size: 8px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--dim);
    text-align: center;
    line-height: 1.4;
  }

  .flow-arrow {
    font-size: 12px;
    color: var(--dim);
    flex-shrink: 0;
    margin: 0 4px;
    margin-bottom: 28px;
  }

  /* PRINCIPLE GRID */
  .principle-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border);
    margin: 40px 0;
  }

  .principle-cell {
    background: var(--bg);
    padding: 36px 32px;
  }

  .principle-num {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.14em;
    color: var(--dim);
    display: block;
    margin-bottom: 16px;
  }

  .principle-text {
    font-family: var(--serif);
    font-size: 15px;
    color: var(--mid);
    line-height: 1.7;
  }

  /* TIMELINE */
  .timeline {
    margin: 40px 0;
    position: relative;
    padding-left: 28px;
  }

  .timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: var(--border);
  }

  .timeline-item {
    position: relative;
    padding-bottom: 40px;
  }

  .timeline-item:last-child { padding-bottom: 0; }

  .timeline-dot {
    position: absolute;
    left: -32px;
    top: 6px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 1.5px solid var(--dim);
    background: var(--bg);
  }

  .timeline-dot.filled {
    background: var(--fg);
    border-color: var(--fg);
  }

  .timeline-label {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 8px;
  }

  .timeline-title {
    font-family: var(--serif);
    font-size: 18px;
    font-weight: 500;
    color: var(--fg);
    margin-bottom: 8px;
  }

  .timeline-body {
    font-family: var(--serif);
    font-size: 15px;
    color: var(--mid);
    line-height: 1.7;
    max-width: 520px;
  }

  /* QUOTE BLOCK */
  .quote-block {
    border-left: 2px solid var(--fg);
    padding: 24px 32px;
    margin: 40px 0;
    background: var(--bg2);
    border-radius: 0 4px 4px 0;
  }

  .quote-text {
    font-family: var(--serif);
    font-size: clamp(18px, 2vw, 24px);
    font-style: italic;
    color: var(--fg);
    line-height: 1.5;
    margin-bottom: 12px;
  }

  .quote-source {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--dim);
  }

  /* ECOSYSTEM MAP */
  .ecosystem-map {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    margin: 40px 0;
  }

  .eco-node {
    background: var(--bg);
    padding: 32px 28px;
    cursor: pointer;
    transition: background 0.2s;
  }

  .eco-node:hover { background: var(--bg2); }

  .eco-node.current { background: var(--bg3); }

  .eco-node-num {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.14em;
    color: var(--dim);
    display: block;
    margin-bottom: 12px;
  }

  .eco-node-title {
    font-family: var(--serif);
    font-size: 16px;
    font-weight: 500;
    color: var(--fg);
    margin-bottom: 10px;
  }

  .eco-node-desc {
    font-family: var(--serif);
    font-size: 13px;
    color: var(--mid);
    line-height: 1.65;
  }

  /* LOGO IMAGE */
  .logo-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin: 40px 0;
  }

  /* FEATURED PHOTO — large hero artifact, centered, capped width */
  .featured-photo {
    width: 70%;
    max-width: 1100px;
    margin: 36px auto;
    display: block;
  }

  /* MILESTONE TIMELINE — horizontal on desktop, stacked on mobile */
  .mvp-timeline {
    display: flex;
    position: relative;
    margin-top: 44px;
    gap: 20px;
  }

  .mvp-timeline-track {
    position: absolute;
    top: 5px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border);
  }

  .mvp-timeline-item {
    flex: 1;
    position: relative;
    padding-top: 28px;
    min-width: 0;
  }

  .mvp-timeline-dot {
    position: absolute;
    top: 0;
    left: 0;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--fg);
    box-sizing: border-box;
  }

  .mvp-timeline-item.is-launch {
    background: rgba(196, 168, 130, 0.1);
    border-radius: 8px;
    padding: 24px 18px 18px;
    margin-top: -24px;
  }

  .mvp-timeline-item.is-launch .mvp-timeline-dot {
    width: 14px;
    height: 14px;
    top: -1px;
    left: 18px;
    border-color: var(--accent);
    background: var(--accent);
  }

  .mvp-timeline-date {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 10px;
  }

  .mvp-timeline-item.is-launch .mvp-timeline-date { color: var(--accent); }

  .mvp-timeline-title {
    font-family: var(--serif);
    font-size: 17px;
    font-weight: 500;
    color: var(--fg);
    line-height: 1.25;
    margin-bottom: 8px;
  }

  .mvp-timeline-desc {
    font-family: var(--serif);
    font-size: 12.5px;
    color: var(--mid);
    line-height: 1.55;
  }

  .mvp-timeline-stats {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 12px;
  }

  .mvp-timeline-stats span {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.06em;
    color: var(--accent);
  }

  /* MOBILE */
  @media (max-width: 768px) {
    html, body { overflow: auto; }
    .workspace { grid-template-columns: 1fr; height: auto; overflow: visible; }
    .panel { border-right: none; border-bottom: 1px solid var(--border); overflow-y: visible; }
    .content { height: auto; overflow-y: visible; }
    .mod-hero, .content-block { padding: 48px 28px; }
    .principle-grid { grid-template-columns: 1fr; }
    .ecosystem-map { grid-template-columns: 1fr; }
    .featured-photo { width: 100%; margin: 28px auto; }
    .flow { gap: 8px; }
    .mvp-timeline { flex-direction: column; gap: 28px; }
    .mvp-timeline-track { display: none; }
    .mvp-timeline-item { padding-top: 0; display: flex; flex-direction: column; }
    .mvp-timeline-dot { position: static; margin-bottom: 10px; }
    .mvp-timeline-item.is-launch { margin-top: 0; }
    .mvp-timeline-item.is-launch .mvp-timeline-dot { left: 0; }
  }