:root {
  color-scheme: light;
  --bg: #f4f6f2;
  --panel: #ffffff;
  --ink: #17201b;
  --muted: #66716b;
  --line: #d9dfd6;
  --accent: #176b4d;
  --accent-ink: #ffffff;
  --warn: #9a5b12;
  --danger: #9f2d2d;
  --soft: #edf2eb;
  --shadow: 0 16px 40px rgb(32 51 42 / 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  letter-spacing: 0;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  min-height: 38px;
  padding: 0 14px;
  cursor: pointer;
  white-space: nowrap;
}

button.secondary {
  background: var(--soft);
  color: var(--ink);
  border: 1px solid var(--line);
}

button.danger {
  background: #f7e8e8;
  color: var(--danger);
  border: 1px solid #e5c1c1;
}

button:active {
  transform: translateY(1px);
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 3px solid rgb(23 107 77 / 0.28);
  outline-offset: 2px;
}

input,
select {
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  min-height: 38px;
  padding: 0 12px;
}

a {
  color: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100dvh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100dvh;
  padding: 24px;
  border-right: 1px solid var(--line);
  background: #fbfcfa;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.sidebar h1,
.topbar h2,
.panel h3 {
  margin: 0;
  line-height: 1.15;
}

.sidebar h1 {
  font-size: 26px;
}

.muted {
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-list {
  display: grid;
  gap: 5px;
}

.nav-list a {
  text-decoration: none;
  color: var(--muted);
  padding: 9px 10px;
  border-radius: 8px;
}

.nav-list a:hover {
  background: var(--soft);
  color: var(--ink);
}

.client-switcher,
.client-form {
  display: grid;
  gap: 8px;
}

.client-switcher label {
  font-size: 13px;
  color: var(--muted);
}

.client-form input,
.client-form button,
.client-switcher select {
  width: 100%;
}

.timeline {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.timeline-item {
  border-left: 3px solid var(--accent);
  background: var(--soft);
  border-radius: 0 8px 8px 0;
  padding: 10px 12px;
  display: grid;
  gap: 4px;
}

.timeline-item strong,
.timeline-item small {
  color: var(--muted);
  font-size: 12px;
}

.compact-list {
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 13px;
}

.compact-list li {
  margin: 4px 0;
}

.sidebar-footer {
  margin-top: auto;
  display: grid;
  gap: 8px;
}

.sidebar-footer label {
  font-size: 13px;
  color: var(--muted);
}

.workspace {
  min-width: 0;
  padding: 24px;
  display: grid;
  gap: 18px;
}

.topbar,
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.topbar {
  padding: 18px 0 6px;
}

.topbar-actions,
.row-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.metric-strip div {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.metric-strip span {
  display: block;
  font-size: 25px;
  font-weight: 700;
}

.metric-strip small {
  color: var(--muted);
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 18px;
  min-width: 0;
}

.span-2 {
  grid-column: span 2;
}

.span-3 {
  grid-column: span 3;
}

.stack {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfa;
}

.item h4,
.item p {
  margin: 0;
}

.item p {
  color: var(--muted);
  margin-top: 6px;
  line-height: 1.45;
}

.message-list {
  display: grid;
  gap: 10px;
  margin: 16px 0;
  max-height: 310px;
  overflow: auto;
}

.message {
  border-left: 3px solid var(--accent);
  background: #f8faf7;
  padding: 10px 12px;
  border-radius: 0 8px 8px 0;
}

.message strong {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.graph-canvas {
  position: relative;
  min-height: 430px;
  margin-top: 16px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  background-color: #fbfcfa;
}

.graph-legend {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.graph-controls {
  display: grid;
  grid-template-columns: auto minmax(110px, 1fr) auto minmax(110px, 1fr) auto minmax(170px, 1.3fr) auto auto;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.graph-group-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.graph-group-controls button {
  min-height: 30px;
  font-size: 13px;
}

.graph-group-controls .group-collapsed {
  color: var(--warn);
  border-color: #e4c78d;
  background: #fff8ea;
}

.graph-controls label {
  color: var(--muted);
  font-size: 13px;
}

.toggle-row {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.toggle-row input {
  min-height: auto;
}

.legend-chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 10px;
  background: var(--soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.graph-node {
  position: absolute;
  width: 190px;
  min-height: 74px;
  border: 1px solid #b9c6bc;
  border-radius: 8px;
  background: #fff;
  padding: 10px;
  box-shadow: 0 10px 28px rgb(32 51 42 / 0.08);
  z-index: 2;
  cursor: pointer;
}

.graph-node.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgb(23 107 77 / 0.18), 0 10px 28px rgb(32 51 42 / 0.08);
}

.graph-empty {
  position: absolute;
  left: 24px;
  top: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  padding: 12px 14px;
}

.graph-node strong {
  display: block;
  font-size: 14px;
}

.graph-node small {
  display: block;
  color: var(--muted);
  margin-top: 4px;
}

.graph-edge {
  position: absolute;
  height: 2px;
  background: #8ca096;
  transform-origin: 0 50%;
  z-index: 1;
}

.graph-edge::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -4px;
  width: 0;
  height: 0;
  border-left: 8px solid #8ca096;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.graph-edge.ownership,
.graph-edge.usage {
  background: var(--accent);
}

.graph-edge.ownership::after,
.graph-edge.usage::after {
  border-left-color: var(--accent);
}

.graph-edge-label {
  position: absolute;
  z-index: 3;
  max-width: 120px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  padding: 2px 7px;
  font-size: 11px;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.status {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 0 9px;
  font-size: 12px;
  font-weight: 700;
  background: var(--soft);
  color: var(--accent);
}

.status.pending {
  background: #fff2d9;
  color: var(--warn);
}

.status.review-needed,
.status.deferred,
.status.medium,
.status.moderate {
  background: #fff2d9;
  color: var(--warn);
}

.status.approved,
.status.accepted,
.status.ready,
.status.strong {
  background: #e2f4ec;
  color: var(--accent);
}

.status.rejected,
.status.high,
.status.weak {
  background: #f7e8e8;
  color: var(--danger);
}

.status.low {
  background: var(--soft);
  color: var(--muted);
}

.roadmap-board,
.deliverable-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.roadmap-column {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 160px;
}

.roadmap-column h4 {
  margin: 0;
  color: var(--muted);
}

.deliverable-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.download-links {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.download-links a {
  text-decoration: none;
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
}

#toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  min-width: 220px;
  max-width: 360px;
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 150ms ease, transform 150ms ease;
}

#toast.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .metric-strip,
  .panel-grid,
  .roadmap-board,
  .deliverable-grid {
    grid-template-columns: 1fr;
  }

  .span-2,
  .span-3 {
    grid-column: span 1;
  }

  .topbar,
  .panel-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .input-row {
    grid-template-columns: 1fr;
  }

  .graph-controls {
    grid-template-columns: 1fr;
  }
}