:root {
  --paper: #f4f0e8;
  --sheet: #fbf9f5;
  --ink: #1c1916;
  --muted: #6d655c;
  --line: #ddd4c6;
  --accent: #243044;
  --accent-soft: #e6ebf1;
  --shadow: 0 1px 0 rgba(28, 25, 22, 0.04);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Yu Mincho", "Hiragino Mincho ProN", serif;
  --sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.35), transparent 220px),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 240, 232, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.site-header-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 22px 24px 0;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: 0.16em;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin-top: 18px;
  padding-bottom: 0;
}

.site-nav a {
  display: inline-block;
  padding: 10px 0 12px;
  color: var(--muted);
  font-size: 0.92rem;
  border-bottom: 2px solid transparent;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--ink);
  text-decoration: none;
}

.site-nav a.is-current {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.page {
  max-width: 980px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.kicker {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.3;
}

.lead {
  max-width: 38em;
  margin: 22px 0 0;
  font-size: 1.08rem;
}

.summary {
  margin-top: 28px;
  max-width: 40em;
  color: #3a342e;
}

.summary p {
  margin: 0 0 1em;
}

.phase-list {
  list-style: none;
  margin: 48px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.phase-list li {
  border-bottom: 1px solid var(--line);
}

.phase-link {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 8px 18px;
  align-items: center;
  padding: 26px 4px;
  text-decoration: none;
}

.phase-link:hover {
  text-decoration: none;
}

.phase-link:hover .phase-name {
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.phase-index {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--muted);
}

.phase-name {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.phase-meta {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.phase-desc {
  grid-column: 2;
  margin: 2px 0 0;
}

.phase-arrow {
  color: var(--muted);
  font-size: 1.2rem;
}

.overview {
  margin: 32px 0 8px;
  padding: 22px 22px 8px;
  background: var(--sheet);
  border: 1px solid var(--line);
}

.overview figcaption {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-size: 1.2rem;
  letter-spacing: 0.06em;
}

.lead a {
  border-bottom: 1px solid var(--line);
}

.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 28px;
}

.overview-wide {
  grid-column: 1 / -1;
}

.overview-block {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.overview-block h2 {
  margin: 0 0 12px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
}

.chain,
.fork,
.role-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 8px;
}

.chain > .chip,
.step {
  flex: 1 1 11rem;
}

.step {
  display: flex;
  align-items: stretch;
  gap: 8px;
}

.step .chip {
  flex: 1 1 auto;
  min-width: 8.5rem;
}

.chain-mark {
  flex: 0 0 auto;
  align-self: center;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.3;
  white-space: nowrap;
}

.chain-down {
  flex-direction: column;
  align-items: stretch;
}

.chain-down > .chip,
.chain-down .step {
  flex-basis: auto;
}

.chain-down .step {
  flex-direction: column;
  align-items: stretch;
}

.chain-down .chain-mark {
  text-align: center;
}

.chip {
  flex: 1 1 9.5rem;
  min-width: 8.5rem;
  padding: 10px 12px;
  background: #fff;
  border: 1px solid var(--line);
}

.chip strong {
  display: block;
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  line-height: 1.4;
}

.chip span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.chip-state {
  background: var(--accent-soft);
  border-color: #c5ceda;
}

.route + .route {
  margin-top: 14px;
}

.route-label {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.open-question {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 10px 0 0;
  padding: 10px 12px;
  border: 1px dashed #b4532a;
  background: #fbf6f1;
  color: #3a342e;
  font-size: 0.9rem;
  line-height: 1.6;
}

.open-question-icon {
  flex: 0 0 auto;
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.28rem;
  color: #b4532a;
}

.open-question strong {
  margin-right: 0.45em;
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.fork {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.fork .chip {
  flex-basis: 0;
}

.fork-cap .chip {
  max-width: 18rem;
}

.badge {
  display: inline-block;
  margin-left: 6px;
  padding: 0 6px;
  border: 1px solid #b4532a;
  color: #b4532a;
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.6;
  vertical-align: 0.15em;
}

.chip span.badge {
  display: inline-block;
  margin-top: 0;
  color: #b4532a;
  font-size: 0.68rem;
  line-height: 1.6;
}

.legend .badge {
  margin-left: 0;
}

.lead + .legend {
  margin-top: 22px;
}

.legend a {
  border-bottom: 1px solid var(--line);
}

.hub {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1.1fr) auto minmax(0, 1fr);
  gap: 12px;
  align-items: center;
}

.hub-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hub-col .route-label {
  margin-bottom: 0;
}

.hub-col .chip {
  flex: 0 0 auto;
}

.hub-arrow {
  color: var(--muted);
  font-size: 1.3rem;
  text-align: center;
}

.hub-core {
  padding: 16px 16px 14px;
}

.hub-core strong {
  font-size: 1.15rem;
}

.hub-core ul {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.86rem;
  line-height: 1.6;
}

.hub-core li {
  padding: 4px 0;
  border-top: 1px solid #c5ceda;
}

.flow-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 9.5rem;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
  text-align: center;
}

.flow-mark small {
  color: var(--accent);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

.question-list {
  margin: 4px 0 0;
  padding-left: 1.1em;
}

.question-list li {
  margin: 2px 0;
}

.req-section {
  margin-top: 36px;
}

.req-build .req-table tbody th {
  border-left: 3px solid #c5ceda;
  padding-left: 12px;
}

.req-link {
  color: var(--muted);
  font-size: 0.9rem;
}

.req-open {
  margin-top: 40px;
}

.lock-premise {
  margin: 0 0 8px;
  color: #3a342e;
  line-height: 1.8;
}

.lock-heading {
  margin: 28px 0 8px;
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 500;
}

.lock-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.lock-list li {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  line-height: 1.75;
}

.lock-no {
  color: var(--muted);
  font-family: var(--serif);
}

.lock-answer {
  display: block;
  margin-top: 8px;
  padding-left: 0.75em;
  border-left: 2px solid var(--accent);
}

.lock-conclusion {
  margin: 0 0 28px;
  padding: 18px 20px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
}

.lock-conclusion strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--serif);
  font-weight: 500;
}

.lock-conclusion p {
  margin: 6px 0 0;
  line-height: 1.8;
}

.lock-conclusion a,
.lock-table a {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.lock-table tbody th {
  width: 9rem;
  white-space: nowrap;
}

.verdict {
  display: block;
  width: fit-content;
  margin-top: 6px;
  padding: 1px 8px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--sans, inherit);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.verdict.is-cond {
  border-color: #b4532a;
  color: #b4532a;
}

.estimate-table tbody th {
  width: 14em;
  white-space: nowrap;
}

.estimate-days {
  width: 5rem;
  font-family: var(--serif);
  font-size: 1.15rem;
  text-align: right;
  white-space: nowrap;
}

.estimate-total th,
.estimate-total td {
  border-bottom-color: var(--ink);
  font-weight: 500;
}

.gantt {
  margin: 8px 0 28px;
}

.gantt-head,
.gantt-row {
  display: grid;
  grid-template-columns: 16rem minmax(0, 1fr);
  gap: 10px;
  align-items: center;
}

.gantt-head {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.75rem;
}

.gantt-weeks {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
}

.gantt-name {
  font-size: 0.88rem;
  line-height: 1.4;
}

.gantt-row {
  margin-top: 6px;
}

.gantt-track {
  position: relative;
  height: 14px;
  background: #efeae2;
}

.gantt-bar {
  position: absolute;
  top: 0;
  height: 100%;
  background: var(--accent);
}

.gantt-bar.is-milestone {
  width: 12px !important;
  height: 12px;
  top: 1px;
  margin-left: -6px;
  background: #b4532a;
}

.pdf-top {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  background: rgba(244, 240, 232, 0.94);
  border-bottom: 1px solid var(--line);
}

.pdf-top a {
  color: var(--muted);
}

.pdf-top button {
  padding: 8px 16px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

.pdf-top button:disabled {
  opacity: 0.6;
  cursor: progress;
}

.pdf-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 28px 16px 64px;
}

.slide-frame {
  position: relative;
  width: min(960px, calc(100vw - 32px));
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #fbf9f5;
  border: 1px solid var(--line);
  box-shadow: 0 10px 28px rgba(28, 25, 22, 0.08);
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  width: 1280px;
  height: 720px;
  transform-origin: 0 0;
  padding: 36px 48px 28px;
  background: #fbf9f5;
  color: var(--ink);
  box-sizing: border-box;
}

.slide-head p,
.slide-foot {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.08em;
}

.slide-head h2,
.slide h1 {
  margin: 4px 0 0;
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.slide-head h2 {
  font-size: 32px;
}

.slide-body {
  flex: 1 1 auto;
  min-height: 0;
  margin-top: 18px;
  overflow: hidden;
}

.slide-foot {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
}

.slide-kicker {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 16px;
  letter-spacing: 0.22em;
}

.slide-cover {
  justify-content: flex-start;
  padding-top: 150px;
}

.slide-cover .slide-foot {
  margin-top: auto;
}

.slide-cover h1 {
  font-size: 64px;
  line-height: 1.25;
}

.slide-cover .slide-lead {
  max-width: 34em;
  margin: 18px 0 0;
  font-size: 22px;
  line-height: 1.6;
}

.slide-meta {
  margin-top: 28px;
  color: var(--muted);
  font-size: 18px;
}

.slide-cols {
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 16px;
}

.slide-card {
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 16px;
  line-height: 1.5;
}

.slide-card strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
}

.slide-card.core {
  background: var(--accent-soft);
  border-color: #c5ceda;
}

.slide-card ul {
  margin: 8px 0 0;
  padding-left: 1.1em;
}

.slide-flow {
  width: 100%;
  border-collapse: collapse;
  font-size: 16px;
}

.slide-flow td {
  padding: 7px 8px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.slide-flow td:nth-child(2) {
  width: 16em;
  color: var(--muted);
  text-align: center;
  white-space: nowrap;
}

.slide-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.4;
}

.slide-table th,
.slide-table td {
  padding: 7px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-weight: 400;
}

.slide-table thead th {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.slide-table tbody th {
  width: 13em;
  font-family: var(--serif);
  font-size: 16px;
}

.slide-note {
  margin: 10px 0 0;
  color: #3a342e;
  font-size: 15px;
}

.slide .legend {
  margin: 0 0 10px;
  font-size: 14px;
}

.slide-map .overview-block {
  margin: 0;
  padding: 0;
  border: none;
}

.slide-map .overview-block > h2 {
  display: none;
}

.slide-map.is-multi .overview-block + .overview-block {
  margin-top: 20px;
}

.slide-map.is-multi .overview-block > h2 {
  display: block;
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 500;
}

.slide-map .slide-questions {
  font-size: 14px;
  line-height: 1.45;
}

.slide-map .slide-questions li {
  margin: 2px 0;
}

.slide-map .chip strong {
  font-size: 18px;
}

.slide-map .chip span {
  font-size: 15px;
  line-height: 1.5;
}

.slide-map .chip span.badge {
  font-size: 11px;
}

.slide-map .overview-note {
  font-size: 15px;
}

.slide-map .boundary-row {
  margin-top: 6px;
}

.slide-map .boundary-row .chip {
  padding-top: 6px;
  padding-bottom: 6px;
}

.slide-map .boundary-row .chip strong {
  font-size: 15px;
}

.slide-map .boundary-row .chip span {
  font-size: 13px;
}

.slide-table.compact th,
.slide-table.compact td {
  padding: 2px 8px;
  font-size: 14px;
  line-height: 1.35;
}

.slide .gantt-name {
  font-size: 14px;
}

.slide .gantt {
  margin-bottom: 0;
}

.decide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.decide-grid .slide-card {
  font-size: 15px;
}

.slide-questions {
  margin: 0;
  padding-left: 1.2em;
  font-size: 16px;
  line-height: 1.55;
}

.slide-questions li {
  margin: 4px 0;
}

.scope-more {
  margin-top: 8px;
}

.tab-bar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px 20px;
  margin-top: 28px;
  border-bottom: 1px solid var(--line);
}

.page-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  margin: 28px 0 0;
  border-bottom: 1px solid var(--line);
}

.tab-bar .page-tabs {
  margin-top: 0;
  border-bottom: none;
  flex: 1 1 auto;
}

.pdf-link {
  flex: 0 0 auto;
  margin: 0 0 10px;
  padding: 6px 12px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.pdf-link:hover {
  background: var(--accent);
  color: #fff;
  text-decoration: none;
}

.page-tabs a {
  display: inline-block;
  padding: 10px 0 12px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  text-decoration: none;
}

.page-tabs a:hover {
  color: var(--ink);
  text-decoration: none;
}

.page-tabs a.is-current {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.82rem;
}

.legend li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.swatch {
  width: 0.85rem;
  height: 0.85rem;
  border: 1px solid var(--line);
  background: #fff;
}

.swatch-build {
  background: var(--accent-soft);
  border-color: #c5ceda;
}

.swatch-gear {
  background: transparent;
  border-style: dashed;
  border-color: #cfc6b8;
}

.boundary-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 8px 12px;
  align-items: stretch;
  margin-top: 10px;
}

.boundary-row .chain-mark {
  align-self: center;
}

.req-table {
  width: 100%;
  margin-top: 8px;
  border-collapse: collapse;
}

.req-table th,
.req-table td {
  padding: 16px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-weight: 400;
  line-height: 1.6;
}

.req-table thead th {
  padding-top: 0;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.req-table tbody th {
  width: 11rem;
  font-family: var(--serif);
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.req-when {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.exception-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.exception-list li {
  padding: 7px 10px;
  border: 1px dashed #cfc6b8;
  color: var(--ink);
  font-size: 0.86rem;
}

.exception-list span {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
}

.overstay {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed #cfc6b8;
}

.overstay-label {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 1.02rem;
  letter-spacing: 0.04em;
}

.fee-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr;
  gap: 8px;
  margin-top: 10px;
}

.role-grid .chip {
  flex: 1 1 10rem;
}

.overview-note {
  margin: 10px 0 0;
  color: #3a342e;
  font-size: 0.88rem;
}

.overview-makers {
  border-bottom: none;
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: principle;
}

.principle-list li {
  padding: 10px 12px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 0.86rem;
  line-height: 1.55;
  counter-increment: principle;
}

.principle-list li::before {
  content: counter(principle);
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-family: var(--serif);
}

.sense-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.sense-list li {
  max-width: 46em;
  margin: 0 0 1.15em;
}

.sense-list strong {
  font-weight: 600;
}

.notes {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  max-width: 44em;
  color: #3a342e;
}

.notes li {
  margin: 0 0 0.9em;
  padding-left: 1.1em;
  text-indent: -1.1em;
}

.notes li::before {
  content: "・";
}

.glossary-section {
  margin-top: 52px;
}

.glossary-section h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.term-table {
  width: 100%;
  margin-top: 18px;
  border-collapse: collapse;
}

.term-table th,
.term-table td {
  padding: 16px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: baseline;
  font-weight: 400;
}

.term-table thead th {
  padding-top: 0;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
}

.term-table tbody th {
  width: 16rem;
  padding-right: 28px;
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  line-height: 1.55;
}

.premise {
  margin: 32px 0 0;
  color: #3a342e;
}

.premise strong {
  font-weight: 600;
}

.spec-head p {
  margin: 14px 0 0;
  color: var(--muted);
}

.spec-empty {
  margin-top: 48px;
  padding: 48px 28px;
  background: var(--sheet);
  border: 1px dashed #cfc6b8;
  box-shadow: var(--shadow);
  color: var(--muted);
  text-align: center;
}

.site-footer {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px 36px;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.site-footer p {
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

@media (max-width: 640px) {
  h1 {
    font-size: 2rem;
  }

  .phase-link {
    grid-template-columns: 40px 1fr;
  }

  .phase-arrow {
    display: none;
  }

  .phase-desc {
    grid-column: 2;
  }

  .term-table thead {
    display: none;
  }

  .term-table,
  .term-table tbody,
  .term-table tr,
  .term-table th,
  .term-table td {
    display: block;
    width: auto;
  }

  .term-table tbody th {
    padding: 16px 0 0;
    border-bottom: none;
  }

  .term-table tbody td {
    padding-top: 4px;
  }

  .overview {
    padding: 18px 14px 4px;
  }

  .overview-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .chain > .chip,
  .step,
  .fork .chip,
  .role-grid .chip {
    flex-basis: 100%;
    max-width: none;
  }

  .step {
    flex-direction: column;
    align-items: stretch;
  }

  .chain-mark {
    text-align: center;
  }

  .fee-grid,
  .principle-list {
    grid-template-columns: 1fr;
  }

  .boundary-row,
  .hub {
    grid-template-columns: 1fr;
  }

  .hub-arrow {
    transform: rotate(90deg);
  }

  .flow-mark {
    min-width: 0;
  }

  .boundary-row .chain-mark {
    text-align: center;
  }

  .req-table thead {
    display: none;
  }

  .req-table,
  .req-table tbody,
  .req-table tr,
  .req-table th,
  .req-table td {
    display: block;
    width: auto;
  }

  .req-table tbody th {
    padding-bottom: 0;
    border-bottom: none;
  }

  .req-table td {
    padding-top: 8px;
  }

  .req-table td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 2px;
    color: var(--muted);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
  }

  .gantt-head,
  .gantt-row {
    grid-template-columns: 1fr;
  }

  .estimate-days {
    text-align: left;
  }

  .tab-bar {
    flex-wrap: wrap;
  }
}

.logout-form {
  margin-left: auto;
}

.logout-form button {
  padding: 10px 0 12px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.92rem;
  cursor: pointer;
}

.logout-form button:hover {
  color: var(--ink);
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.login-card {
  width: min(100%, 420px);
  padding: 36px 32px 32px;
  background: var(--sheet);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.login-card h1 {
  font-size: 2rem;
}

.login-card .lead {
  margin: 12px 0 22px;
  color: var(--muted);
}

.login-field {
  display: block;
  margin-bottom: 14px;
}

.login-field span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.login-field input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.login-error {
  margin: 0 0 16px;
  padding: 10px 12px;
  background: #f3e6e1;
  color: #6d2e22;
}

.login-submit {
  margin-top: 18px;
  width: 100%;
  padding: 12px 16px;
  border: 0;
  background: var(--accent);
  color: #fbf9f5;
  font: inherit;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.login-submit:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.cf-turnstile {
  margin-top: 8px;
}

.user-admin .lead {
  max-width: 40rem;
}

.user-panel {
  margin-top: 28px;
  padding: 24px 24px 28px;
  background: var(--sheet);
  border: 1px solid var(--line);
}

.user-panel h2,
.user-list-title {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 500;
}

.user-list-title {
  margin-top: 48px;
}

.user-panel .login-field input {
  max-width: 360px;
}

.user-panel .login-submit {
  width: auto;
  min-width: 160px;
  margin-top: 8px;
}

.page-checks {
  margin: 8px 0 18px;
  padding: 0;
  border: 0;
}

.page-checks legend {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.page-checks label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 8px;
}

.page-checks input {
  margin-top: 0.35em;
}

.user-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
}

.user-heading h2 {
  margin-bottom: 0;
}

.user-state,
.user-notice {
  margin: 0;
  color: var(--muted);
}

.user-notice {
  margin-top: 18px;
  padding: 10px 12px;
  background: var(--accent-soft);
  color: var(--ink);
}

.user-row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.user-secondary,
.user-danger {
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}

.user-danger {
  color: #6d2e22;
}