:root {
  /* tentative brand palette: concrete grey + olive + bamboo */
  --canvas: #d9d9d6;            /* concrete grey */
  --canvas-2: #fafaf7;          /* warm off-white card surface */
  --canvas-grid: #b9b9b3;       /* dot color */
  --line: #a8a8a2;
  --line-soft: #c4c4be;
  --text: #1f1f1d;
  --text-2: #4f4f4a;
  --text-3: #767672;
  --accent: #6b7c3a;            /* olive green — primary brand */
  --accent-2: #8a9b4f;          /* lighter olive */
  --bamboo: #a37545;            /* bamboo brown — secondary brand */
  --bamboo-2: #c19068;          /* lighter bamboo */
  --exists: #16a34a;
  --draft: #c2410c;             /* warmer to live next to bamboo */
  --missing: #b91c1c;
  --phase-f: #7c3aed;

  --shadow-sm: 0 1px 2px rgba(15,15,12,.06), 0 1px 1px rgba(15,15,12,.04);
  --shadow-md: 0 6px 16px rgba(15,15,12,.10), 0 2px 4px rgba(15,15,12,.06);
  --shadow-lg: 0 18px 40px rgba(15,15,12,.18), 0 4px 12px rgba(15,15,12,.08);

  /* timeline geometry */
  --node-size: 56px;
  --node-gap: 170px;
  --label-h: 110px;
  --side-pad: 90px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--canvas);
  color: var(--text);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Inter", "SF Pro Text", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-x: none;

  /* signature whiteboard dot grid */
  background-image: radial-gradient(circle, var(--canvas-grid) 1px, transparent 1.5px);
  background-size: 22px 22px;
  background-position: -1px -1px;
}

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }

/* ---------- topbar ---------- */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  margin: 16px 20px 0;
  background: var(--canvas-2);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 16px;
  z-index: 10;
  backdrop-filter: blur(8px);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--bamboo));
  color: #fff;
  border-radius: 9px;
  display: grid; place-items: center;
  font-weight: 700; font-size: 13px;
  letter-spacing: 0.02em;
  box-shadow: var(--shadow-sm);
}
.topbar h1 { font-size: 16px; font-weight: 600; }
.sub { margin: 2px 0 0; font-size: 12px; color: var(--text-2); }
.legend { display: flex; gap: 6px; flex-wrap: wrap; }

main { padding: 36px 28px 110px; }

.hint {
  font-size: 12px;
  color: var(--text-3);
  margin: 0 0 22px;
  letter-spacing: 0.02em;
}

/* ---------- timeline ---------- */
.timeline-wrap {
  position: relative;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 30px 0 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}
.timeline-wrap::-webkit-scrollbar { height: 8px; }
.timeline-wrap::-webkit-scrollbar-thumb { background: var(--line); border-radius: 4px; }

.timeline {
  position: relative;
  height: calc(var(--label-h) * 2 + var(--node-size) + 90px);
  padding: 90px var(--side-pad) 0;
  width: max-content;
  min-width: 100%;
}

/* phase headers row (sits above the track) */
.phase-bar {
  position: absolute;
  top: 6px;
  left: 0;
  right: 0;
  height: 46px;
  pointer-events: none;
}
.phase-band {
  position: absolute;
  top: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.phase-band .phase-name {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-2);
  font-weight: 700;
  white-space: nowrap;
}
.phase-band .phase-rule {
  width: 100%;
  height: 4px;
  border-radius: 3px;
}
.phase-band[data-phase="0"] .phase-rule { background: var(--accent); }
.phase-band[data-phase="1"] .phase-rule { background: var(--bamboo); }
.phase-band[data-phase="2"] .phase-rule { background: var(--accent); }
.phase-band[data-phase="3"] .phase-rule { background: var(--bamboo); }
.phase-band[data-phase="0"] .phase-name { color: var(--accent); }
.phase-band[data-phase="1"] .phase-name { color: var(--bamboo); }
.phase-band[data-phase="2"] .phase-name { color: var(--accent); }
.phase-band[data-phase="3"] .phase-name { color: var(--bamboo); }

/* dashed verticals between phases */
.phase-dividers {
  position: absolute;
  top: 56px;
  bottom: 0;
  left: 0;
  right: 0;
  pointer-events: none;
}
.phase-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 0;
  border-left: 1.5px dashed var(--line);
  opacity: 0.7;
}

/* the line — thin, ink-ish */
.track {
  position: absolute;
  top: calc(90px + (var(--label-h) * 2 + var(--node-size)) / 2);
  left: var(--side-pad);
  right: var(--side-pad);
  height: 2px;
  background: linear-gradient(
    to right,
    transparent 0,
    var(--accent) 30px,
    var(--accent) 45%,
    var(--bamboo) 65%,
    var(--bamboo) calc(100% - 30px),
    transparent 100%
  );
  transform: translateY(-1px);
  border-radius: 2px;
}

.nodes {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  gap: var(--node-gap);
}

.tnode {
  position: relative;
  flex: 0 0 var(--node-size);
  height: var(--node-size);
  width: var(--node-size);
  display: grid;
  place-items: center;
}

/* the node — whiteboard sticker style */
.dot {
  width: var(--node-size);
  height: var(--node-size);
  border-radius: 50%;
  background: var(--canvas-2);
  border: 2px solid var(--accent);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .18s cubic-bezier(.4,0,.2,1), box-shadow .2s, background .15s, color .15s;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-md);
}
.dot:hover,
.dot:focus-visible {
  transform: translateY(-3px) scale(1.08);
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-lg);
  outline: none;
}

/* health ring */
.dot .health {
  position: absolute;
  bottom: -3px;
  right: -3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2.5px solid var(--canvas);
  background: var(--text-3);
  box-shadow: var(--shadow-sm);
}
.dot .health.green  { background: var(--exists);  }
.dot .health.amber  { background: var(--draft);   }
.dot .health.red    { background: var(--missing); }
.dot .health.purple { background: var(--phase-f); }

/* label — sticky-note card */
.label {
  position: absolute;
  left: 50%;
  width: 188px;
  transform: translateX(-50%);
  text-align: center;
  pointer-events: none;
  background: var(--canvas-2);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 10px 12px;
  box-shadow: var(--shadow-sm);
}
.label .lid {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 4px;
}
.label .lname {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 5px;
}
.label .lmeta {
  font-size: 11px;
  color: var(--text-2);
  font-weight: 500;
}

.tnode.above .label { bottom: calc(50% + var(--node-size) / 2 + 22px); }
.tnode.below .label { top: calc(50% + var(--node-size) / 2 + 22px); }

/* connector tick from dot → label */
.tnode.above::before,
.tnode.below::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 1.5px;
  background: var(--line);
  transform: translateX(-50%);
  border-radius: 2px;
}
.tnode.above::before { bottom: calc(50% + var(--node-size) / 2); height: 18px; }
.tnode.below::after  { top:    calc(50% + var(--node-size) / 2); height: 18px; }

/* ---------- pills ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 99px;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  border: 1px solid transparent;
}
.pill.exists  { background: rgba(22,163,74,.10);  color: var(--exists);  border-color: rgba(22,163,74,.28); }
.pill.draft   { background: rgba(194,65,12,.10);  color: var(--draft);   border-color: rgba(194,65,12,.28); }
.pill.missing { background: rgba(185,28,28,.10);  color: var(--missing); border-color: rgba(185,28,28,.28); }
.pill.phase-f { background: rgba(124,58,237,.10); color: var(--phase-f); border-color: rgba(124,58,237,.28); }

/* ---------- readiness card ---------- */
.readiness {
  margin-top: 36px;
  padding: 22px 26px;
  background: var(--canvas-2);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-wrap: wrap;
  gap: 24px 40px;
  align-items: center;
}
.readiness h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-3);
  font-weight: 700;
}
.readiness .stat { display: flex; flex-direction: column; gap: 2px; }
.readiness .stat .num { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; }
.readiness .stat .lbl { font-size: 12px; color: var(--text-2); }
.readiness .stat.exists .num  { color: var(--exists); }
.readiness .stat.draft .num   { color: var(--draft); }
.readiness .stat.missing .num { color: var(--missing); }
.readiness .stat.phase-f .num { color: var(--phase-f); }

/* ---------- drawer ---------- */
.drawer-scrim {
  position: fixed; inset: 0;
  background: rgba(15,15,12,.35);
  opacity: 0; pointer-events: none;
  transition: opacity .2s ease;
  z-index: 50;
  backdrop-filter: blur(2px);
}
.drawer-scrim.open { opacity: 1; pointer-events: all; }

.drawer {
  position: fixed;
  top: 0; right: 0;
  height: 100vh;
  width: min(580px, 92vw);
  background: var(--canvas-2);
  border-left: 1px solid var(--line-soft);
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform .25s cubic-bezier(.4,0,.2,1);
  z-index: 60;
  overflow-y: auto;
}
.drawer.open { transform: translateX(0); }
.drawer-close {
  position: sticky;
  top: 14px;
  margin-left: calc(100% - 50px);
  width: 36px; height: 36px;
  background: var(--canvas);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
  box-shadow: var(--shadow-sm);
}
.drawer-close:hover { background: var(--canvas-2); border-color: var(--accent); color: var(--accent); }

.drawer-body { padding: 8px 32px 56px; margin-top: -36px; }
.drawer-id {
  font-size: 11px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.drawer-title { font-size: 26px; margin: 6px 0 6px; letter-spacing: -0.02em; }
.drawer-oneliner { color: var(--text-2); font-size: 15px; line-height: 1.5; margin-bottom: 22px; }

.drawer h3 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-3);
  margin: 26px 0 10px;
  font-weight: 700;
}
.drawer ul { padding-left: 18px; margin: 0; }
.drawer li { margin: 5px 0; color: var(--text); }
.drawer p { margin: 6px 0; color: var(--text); }

.kv {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 6px 14px;
  font-size: 13.5px;
  margin-bottom: 8px;
}
.kv dt { color: var(--text-3); font-size: 12px; padding-top: 1px; }
.kv dd { margin: 0; color: var(--text); }

.tag-row { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11.5px;
  padding: 2px 8px;
  background: var(--canvas);
  border: 1px solid var(--line-soft);
  border-radius: 5px;
  color: var(--text-2);
}

.artifacts { display: flex; flex-direction: column; gap: 6px; }
.artifact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  background: var(--canvas);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
}
.artifact .name {
  font-size: 13px;
  color: var(--text);
  flex: 1;
  min-width: 0;
}
.artifact .path {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--text-3);
  margin-top: 3px;
  display: block;
  word-break: break-all;
}

/* ---------- footer ---------- */
.foot {
  position: fixed;
  bottom: 12px;
  left: 20px;
  right: 20px;
  background: var(--canvas-2);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 8px 16px;
  font-size: 11px;
  color: var(--text-3);
  display: flex;
  justify-content: space-between;
  z-index: 5;
  box-shadow: var(--shadow-sm);
}
.foot code { color: var(--text-2); font-size: 11px; }

@media (max-width: 700px) {
  :root { --node-gap: 140px; --side-pad: 50px; --node-size: 50px; }
  .topbar { flex-direction: column; align-items: flex-start; gap: 12px; }
  .label { width: 150px; }
  .drawer-body { padding: 8px 22px 56px; }
}