:root {
  color-scheme: light;
  --bg: #f6f7f2;
  --ink: #18201b;
  --muted: #637064;
  --line: #d9dfd5;
  --panel: #ffffff;
  --accent: #1f7a5a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0;
}

.narrow {
  width: min(460px, calc(100% - 32px));
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.topbar a,
.section-nav a,
.row {
  color: var(--ink);
  text-decoration: none;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 28px;
}

.hero {
  margin-bottom: 14px;
}

.section-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #eef2ec;
  padding: 6px;
  scrollbar-width: none;
}

.section-nav::-webkit-scrollbar {
  display: none;
}

.section-nav a {
  flex: 0 0 auto;
  min-height: 36px;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--muted);
  font-weight: 650;
}

.section-nav a[aria-current="page"] {
  color: var(--ink);
  background: var(--panel);
  border-color: var(--line);
}

.stack {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 14px 16px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  font-size: 2rem;
  line-height: 1.15;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

h2 {
  margin: 0 0 12px;
  font-size: 1.2rem;
}

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

button,
input,
select {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  font: inherit;
}

button {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
  cursor: pointer;
}

.form,
.grid-form,
.inline-danger {
  display: grid;
  gap: 12px;
}

.grid-form {
  grid-template-columns: 1.4fr 1fr 1fr auto auto;
  align-items: center;
}

.compact {
  grid-template-columns: 1.4fr 1fr 90px auto;
  margin-top: 10px;
}

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

.inline-danger {
  justify-content: end;
  margin-top: 8px;
}

.inline-danger button {
  color: #7d1b1b;
  background: #fff;
  border-color: #efb2b2;
}

.check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.check input {
  min-height: auto;
}

.progress {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--line);
  margin-top: 18px;
  padding-top: 18px;
}

.progress strong {
  color: var(--accent);
  font-size: 1.8rem;
}

.group,
.task,
.items {
  display: grid;
  gap: 12px;
}

.task {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.items {
  padding-left: 18px;
}

.assets {
  display: grid;
  gap: 10px;
}

.assignment {
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.panel-builder-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
}

.panel-builder-header h2 {
  margin-bottom: 6px;
}

.panel-stats,
.circuit-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.panel-stats {
  justify-content: end;
  min-width: 190px;
}

.panel-stats span,
.circuit-card-meta span {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f8faf6;
  color: var(--muted);
  padding: 5px 8px;
  font-size: 0.78rem;
  font-weight: 650;
}

.builder-tools {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.builder-tools summary,
.slot-editor summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 700;
}

.panel-board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.circuit-card {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 148px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 14px;
}

.circuit-card-main {
  display: grid;
  gap: 4px;
}

.circuit-card-main strong {
  font-size: 1.4rem;
  line-height: 1.1;
}

.circuit-card-main span {
  font-weight: 700;
}

.slot-editor {
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.panel-work {
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.assets a {
  color: var(--ink);
}

@media (max-width: 760px) {
  .grid-form,
  .compact,
  .wide,
  .row,
  .progress {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .row,
  .progress {
    display: grid;
  }

  .panel-builder-header,
  .panel-stats {
    display: grid;
    justify-content: stretch;
    min-width: 0;
  }

  .panel-board {
    grid-template-columns: 1fr;
  }
}