:root {
  color-scheme: light;
  --font-display: "Noto Serif SC", "Songti SC", STSong, serif;
  --font-body: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  --page: #f4efe6;
  --surface: #fffdf8;
  --surface-muted: #ebe6dc;
  --surface-strong: #143b36;
  --ink: #17302d;
  --ink-soft: #64716d;
  --ink-inverse: #f9f5ec;
  --line: #d6d0c4;
  --line-strong: #a9b0a9;
  --accent: #1d655d;
  --accent-strong: #124b45;
  --accent-soft: #dceae5;
  --pending: #b6782a;
  --pending-soft: #f4e8d1;
  --stable: #416d5f;
  --stable-soft: #e1ece6;
  --conditional: #766a3d;
  --conditional-soft: #efead7;
  --unknown: #6f6d77;
  --unknown-soft: #e9e7eb;
  --danger: #9d463d;
  --danger-soft: #f3dfdc;
  --shadow-1: 0 6px 20px rgb(29 42 38 / 7%);
  --shadow-2: 0 18px 60px rgb(29 42 38 / 13%);
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --content-gap: 32px;
  --section-pad: clamp(24px, 4vw, 52px);
  --duration-fast: 180ms;
  --duration-slow: 300ms;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

html[data-theme="desk"] {
  color-scheme: light;
}

html[data-theme="executive"] {
  --page: #edf1f1;
  --surface: #ffffff;
  --surface-muted: #e2e8e8;
  --surface-strong: #153241;
  --ink: #122c37;
  --ink-soft: #5d6f76;
  --ink-inverse: #f8fbfc;
  --line: #cbd5d7;
  --line-strong: #91a2a7;
  --accent: #176378;
  --accent-strong: #0f495a;
  --accent-soft: #d8e9ed;
  --pending: #9c6b27;
  --pending-soft: #f0e5d3;
  --stable: #2f6c6b;
  --stable-soft: #deeceb;
  --conditional: #77663a;
  --conditional-soft: #eee9d6;
  --shadow-1: 0 1px 2px rgb(12 35 43 / 7%);
  --shadow-2: 0 12px 32px rgb(12 35 43 / 10%);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
}

html[data-theme="family"] {
  --page: #f2f2e9;
  --surface: #fffefa;
  --surface-muted: #e8eadf;
  --surface-strong: #395546;
  --ink: #263b31;
  --ink-soft: #68766d;
  --ink-inverse: #fffdf6;
  --line: #d3d8ca;
  --line-strong: #a6b1a4;
  --accent: #537a61;
  --accent-strong: #3d604a;
  --accent-soft: #e2ece1;
  --pending: #a97938;
  --pending-soft: #f5ead7;
  --stable: #527660;
  --stable-soft: #e5eee4;
  --conditional: #7d7046;
  --conditional-soft: #f0ecdd;
  --shadow-1: 0 8px 28px rgb(48 67 54 / 6%);
  --shadow-2: 0 22px 72px rgb(48 67 54 / 11%);
  --radius-sm: 18px;
  --radius-md: 24px;
  --radius-lg: 32px;
}

html[data-density="compact"] {
  --content-gap: 20px;
  --section-pad: clamp(20px, 3vw, 36px);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--page);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 8%, color-mix(in srgb, var(--accent-soft) 72%, transparent) 0, transparent 28rem),
    var(--page);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

button,
input {
  font: inherit;
}

button,
label {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

button:focus-visible,
input:focus-visible,
a:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 36%, transparent);
  outline-offset: 3px;
}

a {
  color: var(--accent-strong);
  text-underline-offset: 3px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 650;
  letter-spacing: -.025em;
}

h1 {
  max-width: 850px;
  margin-bottom: 16px;
  font-size: clamp(2.1rem, 5vw, 4.4rem);
  line-height: 1.12;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(1.45rem, 2.7vw, 2.25rem);
  line-height: 1.25;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.16rem;
  line-height: 1.4;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  color: var(--ink-inverse);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 74px;
  padding: 10px 24px;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
  background: color-mix(in srgb, var(--page) 88%, transparent);
  backdrop-filter: blur(18px);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 13px;
  min-height: 48px;
  padding: 2px 4px 2px 2px;
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  text-align: left;
}


.wordmark strong,
.wordmark small {
  display: block;
}

.wordmark strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 680;
  line-height: 1.2;
  letter-spacing: .015em;
}

.wordmark small {
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: .7rem;
  letter-spacing: .055em;
}

.prototype-notice {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  color: var(--ink-soft);
  font-size: .76rem;
  font-weight: 650;
  letter-spacing: .03em;
}

.notice-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pending);
  box-shadow: 0 0 0 4px var(--pending-soft);
}

.quiet-button,
.icon-button,
.secondary-button,
.primary-button {
  min-height: 44px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    transform var(--duration-fast) var(--ease),
    background var(--duration-fast) var(--ease),
    border-color var(--duration-fast) var(--ease),
    color var(--duration-fast) var(--ease);
}

.quiet-button:hover,
.icon-button:hover,
.secondary-button:hover,
.primary-button:hover {
  transform: translateY(-1px);
}

.quiet-button:active,
.icon-button:active,
.secondary-button:active,
.primary-button:active {
  transform: translateY(0);
}

.quiet-button:disabled,
.secondary-button:disabled,
.primary-button:disabled {
  cursor: not-allowed;
  opacity: .42;
  transform: none;
}

.quiet-button,
.icon-button {
  padding: 8px 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink-soft);
}

.quiet-button:hover,
.icon-button:hover {
  border-color: var(--line);
  background: var(--surface);
  color: var(--ink);
}

.reset-button {
  justify-self: end;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(230px, 288px) minmax(0, 1fr);
  min-height: calc(100vh - 75px);
}

.chapter-rail {
  position: sticky;
  top: 74px;
  display: flex;
  height: calc(100vh - 74px);
  flex-direction: column;
  padding: 40px 24px 28px;
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 60%, transparent);
}

.rail-intro {
  padding: 0 10px 24px;
}

.eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-strong);
  font-size: .7rem;
  font-weight: 780;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.rail-intro p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: .84rem;
  line-height: 1.55;
}

.chapter-list {
  display: grid;
  gap: 3px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chapter-button {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 54px;
  grid-template-columns: 26px 1fr;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  text-align: left;
}

.chapter-button:hover:not(:disabled) {
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  color: var(--ink);
}

.chapter-button[aria-current="step"] {
  border-color: color-mix(in srgb, var(--accent) 24%, transparent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.chapter-button:disabled {
  cursor: default;
  opacity: .52;
}

.chapter-index {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface);
  font-size: .72rem;
  font-weight: 750;
}

.chapter-button.is-complete .chapter-index {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--ink-inverse);
}

.chapter-name {
  font-size: .87rem;
  font-weight: 680;
}

.rail-support {
  margin-top: auto;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}

.rail-support-label {
  display: block;
  margin-bottom: 5px;
  color: var(--ink-soft);
  font-size: .68rem;
  font-weight: 750;
  letter-spacing: .08em;
}

.rail-support strong {
  font-family: var(--font-display);
  font-size: .94rem;
  line-height: 1.45;
}

.decision-content {
  min-width: 0;
  padding: clamp(40px, 7vw, 88px) clamp(24px, 7vw, 112px) 112px;
}

#screen {
  width: min(1080px, 100%);
  margin: 0 auto;
  animation: screen-in var(--duration-slow) var(--ease) both;
}

@keyframes screen-in {
  from { opacity: 0; transform: translateY(9px); }
  to { opacity: 1; transform: translateY(0); }
}

.screen-header {
  display: grid;
  gap: 10px;
  margin-bottom: var(--content-gap);
}

.screen-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent-strong);
  font-size: .75rem;
  font-weight: 780;
  letter-spacing: .08em;
}

.screen-kicker::before {
  width: 34px;
  height: 1px;
  background: var(--accent);
  content: "";
}

.screen-lead {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
}

.decision-question {
  max-width: 920px;
  margin-bottom: 22px;
  font-family: var(--font-display);
  font-size: clamp(1.32rem, 2.3vw, 2rem);
  line-height: 1.45;
}

.context-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: var(--content-gap);
}

.context-item {
  min-height: 108px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface) 84%, transparent);
}

.context-item span,
.metric-card span,
.fact-row dt {
  display: block;
  margin-bottom: 8px;
  color: var(--ink-soft);
  font-size: .7rem;
  font-weight: 750;
  letter-spacing: .06em;
}

.context-item strong,
.metric-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.08rem;
  line-height: 1.4;
}

.question-block {
  padding: var(--section-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-2);
}

.question-label {
  display: block;
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-size: clamp(1.18rem, 2vw, 1.58rem);
  font-weight: 650;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.choice-card {
  position: relative;
  display: block;
  min-width: 0;
  cursor: pointer;
}

.choice-card input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.choice-card span {
  display: flex;
  min-height: 116px;
  flex-direction: column;
  justify-content: space-between;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition:
    border-color var(--duration-fast) var(--ease),
    background var(--duration-fast) var(--ease),
    transform var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease);
}

.choice-card:hover span {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-1);
}

.choice-card input:focus-visible + span {
  outline: 3px solid color-mix(in srgb, var(--accent) 34%, transparent);
  outline-offset: 3px;
}

.choice-card input:checked + span {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.choice-card strong {
  font-family: var(--font-display);
  font-size: 1.03rem;
}

.choice-card small {
  color: var(--ink-soft);
  font-size: .76rem;
  line-height: 1.5;
}

.inline-error {
  margin: 14px 0 0;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--danger-soft);
  color: var(--danger);
  font-size: .82rem;
  font-weight: 680;
}

.desktop-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 28px;
}

.primary-button,
.secondary-button {
  padding: 11px 18px;
  border: 1px solid var(--accent);
  font-weight: 720;
}

.primary-button {
  background: var(--accent);
  color: var(--ink-inverse);
}

.primary-button:hover {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
}

.secondary-button {
  background: transparent;
  color: var(--accent-strong);
}

.secondary-button:hover {
  background: var(--accent-soft);
}

.emotional-return {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: var(--content-gap);
}

.return-card {
  min-height: 150px;
  padding: 20px;
  border-top: 2px solid var(--line-strong);
  background: color-mix(in srgb, var(--surface) 58%, transparent);
}

.return-card:nth-child(1) { border-color: var(--stable); }
.return-card:nth-child(2) { border-color: var(--conditional); }
.return-card:nth-child(3) { border-color: var(--accent); }

.return-label {
  display: block;
  margin-bottom: 12px;
  color: var(--ink-soft);
  font-size: .68rem;
  font-weight: 780;
  letter-spacing: .09em;
}

.return-card p {
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.55;
}

.profile-grid,
.operations-grid,
.path-grid,
.decision-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.profile-card,
.operation-card,
.path-card,
.decision-panel,
.source-panel {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}

.profile-card p,
.operation-card p,
.path-card p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.profile-card.featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: minmax(180px, .7fr) minmax(0, 1.3fr);
  align-items: start;
  gap: 24px;
  background: var(--surface-strong);
  color: var(--ink-inverse);
}

.profile-card.featured p,
.profile-card.featured .soft-label {
  color: color-mix(in srgb, var(--ink-inverse) 72%, transparent);
}

.soft-label {
  display: block;
  margin-bottom: 9px;
  color: var(--ink-soft);
  font-size: .72rem;
  font-weight: 760;
  letter-spacing: .06em;
}

.interest-list,
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.interest-list li,
.tag {
  padding: 7px 10px;
  border: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  border-radius: 99px;
  background: color-mix(in srgb, var(--surface-muted) 70%, transparent);
  color: var(--ink);
  font-size: .74rem;
  font-weight: 650;
}

.profile-card.featured .interest-list li {
  border-color: color-mix(in srgb, var(--ink-inverse) 25%, transparent);
  background: color-mix(in srgb, var(--ink-inverse) 10%, transparent);
  color: var(--ink-inverse);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.metric-card {
  min-height: 128px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.failure-card {
  grid-column: span 2;
  border-color: color-mix(in srgb, var(--pending) 34%, var(--line));
  background: var(--pending-soft);
}

.failure-card p {
  color: color-mix(in srgb, var(--ink) 80%, var(--pending));
}

.priority-stack {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.priority-row {
  display: grid;
  grid-template-columns: minmax(140px, 1.4fr) minmax(150px, 2fr) 46px;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.priority-row strong {
  font-size: .86rem;
}

.priority-track {
  height: 8px;
  overflow: hidden;
  border-radius: 99px;
  background: var(--surface-muted);
}

.priority-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.priority-leading { width: 100%; }
.priority-core { width: 78%; }
.priority-supporting { width: 58%; }

.priority-value {
  color: var(--ink-soft);
  font-size: .75rem;
  font-weight: 750;
  text-align: right;
}

.alignment-note {
  margin-top: 18px;
  padding: 16px 18px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
}

.alignment-note p {
  margin-bottom: 0;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 14px;
  padding: 5px 9px;
  border-radius: 99px;
  font-size: .68rem;
  font-weight: 780;
  letter-spacing: .05em;
}

.status-pill::before {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

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

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

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

.path-card {
  display: flex;
  min-height: 310px;
  flex-direction: column;
}

.path-card h3 {
  font-size: 1.22rem;
}

.path-details {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
}

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

.path-detail span {
  display: block;
  margin-bottom: 4px;
  color: var(--ink-soft);
  font-size: .68rem;
  font-weight: 780;
  letter-spacing: .05em;
}

.path-detail p {
  font-size: .84rem;
}

.path-source-button {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 18px;
  border: 0;
  background: transparent;
  color: var(--accent-strong);
  cursor: pointer;
  font-size: .76rem;
  font-weight: 720;
}

.housing-callout {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 24px;
  margin-top: 16px;
  padding: var(--section-pad);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
  color: var(--ink-inverse);
}

.housing-callout p {
  color: color-mix(in srgb, var(--ink-inverse) 74%, transparent);
}

.housing-verdict {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: 24px;
  border-left: 1px solid color-mix(in srgb, var(--ink-inverse) 25%, transparent);
}

.housing-verdict span {
  color: color-mix(in srgb, var(--ink-inverse) 68%, transparent);
  font-size: .7rem;
  font-weight: 760;
  letter-spacing: .08em;
}

.housing-verdict strong {
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.3vw, 2rem);
  line-height: 1.35;
}