:root {
  --paper: #fbfbfc;
  --paper-deep: #f3f4f6;
  --paper-bright: #fbfbfc;
  --ink: #0d0d0f;
  --ink-soft: rgba(13, 13, 15, 0.58);
  --ink-faint: rgba(13, 13, 15, 0.38);
  --line: rgba(13, 13, 15, 0.08);
  --line-soft: rgba(13, 13, 15, 0.06);
  --accent: #1d7bd6;
  --accent-deep: #1d7bd6;
  --accent-wash: rgba(29, 123, 214, 0.1);
  --rule: #e9e9ec;
  --llm: #1d7bd6;
  --tool: #1d7bd6;
  --connection: #1d7bd6;
  --danger: #d1223b;
  --danger-wash: #fdecee;
  --content-width: 1180px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-pill: 9999px;
  --duration: 200ms;
  --ease: cubic-bezier(0.23, 1, 0.32, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  word-break: keep-all;
  text-rendering: optimizeLegibility;
}

button,
textarea {
  font: inherit;
}

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

button {
  cursor: pointer;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent-deep);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-2) var(--space-3);
  color: var(--paper);
  background: var(--ink);
  border-radius: var(--radius-pill);
  transform: translateY(-200%);
}

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

.topbar {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.topbar__inner {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  width: min(100% - 48px, var(--content-width));
  min-height: 78px;
  margin: 0 auto;
}

.brand {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  gap: 1px;
  color: inherit;
  text-decoration: none;
}

.brand__name {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.brand__meta,
.topbar__note,
.map-label,
.section-index,
.week-nav__label,
.workflow-legend,
.field small,
.field-error {
  color: var(--ink-faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.025em;
}

.brand__meta {
  font-size: 0.68rem;
}

.week-nav {
  display: flex;
  align-items: stretch;
  align-self: stretch;
  gap: var(--space-2);
  margin-left: auto;
}

.week-nav__label {
  display: flex;
  align-items: center;
  margin-right: var(--space-3);
  white-space: nowrap;
}

.week-nav__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 150px;
  min-height: 36px;
  padding: 0 var(--space-3);
  color: var(--ink-soft);
  text-align: left;
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
}

.week-nav__item:hover,
.week-nav__item.is-active {
  color: var(--ink);
}

.week-nav__item.is-active {
  background: var(--paper-deep);
}

.week-nav__number {
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  font-weight: 500;
}

.week-nav__item strong,
.week-nav__item small {
  display: block;
}

.week-nav__item strong {
  font-size: 0.88rem;
  line-height: 1.25;
}

.week-nav__item small {
  margin-top: 2px;
  color: var(--ink-faint);
  font-size: 0.7rem;
  line-height: 1.35;
}

.topbar__note {
  margin-left: auto;
  white-space: nowrap;
}

.page-shell {
  width: min(100% - 48px, var(--content-width));
  margin: 0 auto;
}

.main-content {
  min-width: 0;
}

.section-anchor {
  scroll-margin-top: var(--space-6);
}

.hero {
  padding: var(--space-12) 0 var(--space-12);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: clamp(var(--space-10), 9vw, 140px);
  align-items: end;
}

.section-index {
  margin: 0;
  color: var(--accent-deep);
  font-weight: 500;
  line-height: 1.4;
}

h1,
h2,
h3,
p {
  overflow-wrap: normal;
  word-break: keep-all;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.04em;
}

.hero h1 {
  max-width: 760px;
  margin: var(--space-5) 0 var(--space-5);
  font-size: clamp(26px, 2.6vw, 32px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.hero h1 strong {
  color: var(--ink);
  font-weight: inherit;
}

.hero__lead {
  max-width: 650px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.hero__principle {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-6) 0 0;
  color: var(--ink);
  font-weight: 500;
}

.hero__principle span {
  display: inline-grid;
  place-items: center;
  min-width: 42px;
  height: 24px;
  padding: 0 var(--space-2);
  color: var(--accent);
  background: var(--accent-wash);
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 500;
}

.hero__map {
  position: relative;
  padding: var(--space-6);
  background: var(--paper-deep);
  border: 0;
  border-radius: var(--radius-md);
}

.hero__map-line {
  position: absolute;
  top: 69px;
  bottom: var(--space-6);
  left: 30px;
  width: 1px;
  background: var(--border-strong, var(--line));
}

.hero__map-list {
  position: relative;
  display: grid;
  gap: var(--space-4);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.hero__map-list li {
  display: grid;
  grid-template-columns: 28px 76px 1fr;
  gap: var(--space-3);
  align-items: baseline;
}

.hero__map-list b {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
}

.hero__map-list span {
  font-weight: 500;
}

.hero__map-list small {
  color: var(--ink-soft);
  font-size: 13px;
}

.orientation {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: var(--space-6);
  align-items: center;
  padding: var(--space-4) var(--space-5);
  background: var(--paper-deep);
  border: 0;
  border-radius: var(--radius-md);
}

.orientation strong {
  font-size: 0.9rem;
  white-space: nowrap;
}

.orientation p {
  max-width: 600px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.orientation__path {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  white-space: nowrap;
}

.orientation__path span {
  padding: 4px 10px;
  background: var(--paper);
  border-radius: var(--radius-pill);
}

.orientation__path i {
  color: var(--ink-faint);
  font-style: normal;
}

.content-section {
  padding: var(--space-12) 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.58fr);
  gap: var(--space-10);
  align-items: end;
  margin-bottom: var(--space-10);
}

.section-heading h2 {
  max-width: 680px;
  margin-top: var(--space-3);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-heading > p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.workflow-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.75fr);
  gap: clamp(var(--space-8), 6vw, var(--space-16));
  align-items: start;
}

.workflow-canvas {
  min-width: 0;
}

.workflow-canvas__header {
  display: flex;
  justify-content: space-between;
  gap: var(--space-6);
  align-items: end;
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--line);
}

.workflow-canvas__header h3 {
  margin-top: var(--space-2);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.workflow-canvas__hint {
  flex: 0 0 auto;
  color: var(--ink-faint);
  font-size: 0.78rem;
  text-align: right;
}

.workflow-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  padding: var(--space-8) 0 var(--space-6);
}

.workflow-steps::before {
  position: absolute;
  top: 68px;
  right: 7%;
  left: 7%;
  height: 1px;
  background: var(--line);
  content: "";
}

.workflow-step {
  position: relative;
  display: grid;
  grid-template-rows: 30px auto auto auto;
  gap: var(--space-2);
  min-width: 0;
  padding: 0 var(--space-3);
  color: var(--ink-soft);
  text-align: left;
  background: transparent;
  border: 0;
  transition: color var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.workflow-step:hover,
.workflow-step.is-active {
  color: var(--ink);
  transform: translateY(-3px);
}

.workflow-step__number {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 500;
}

.workflow-step.is-active .workflow-step__number {
  color: var(--paper-bright);
  background: var(--accent);
  border-color: var(--accent);
}

.workflow-step__role {
  color: var(--accent-deep);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 500;
}

.workflow-step__title {
  color: var(--ink);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.35;
}

.workflow-step__short {
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.45;
}

.workflow-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line-soft);
}

.workflow-legend span {
  display: inline-flex;
  gap: var(--space-2);
  align-items: center;
}

.legend-swatch {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--rule);
  border: 1px solid var(--ink-faint);
}

.legend-swatch--llm {
  background: var(--llm);
  border-color: var(--llm);
}

.legend-swatch--tool {
  background: var(--tool);
  border-color: var(--tool);
}

.legend-swatch--connection {
  background: var(--connection);
  border-color: var(--connection);
}

.explanation-panel {
  min-height: 300px;
  padding: var(--space-6);
  background: var(--paper-deep);
  border: 0;
  border-radius: var(--radius-md);
}

.detail__topline {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  align-items: center;
}

.detail__tag {
  color: var(--accent-deep);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 500;
}

.detail__tag--tool {
  color: var(--tool);
}

.detail__tag--llm {
  color: var(--accent-deep);
}

.detail__tag--connection {
  color: var(--connection);
}

.explanation-panel h3 {
  margin-top: var(--space-5);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.15;
}

.detail__description {
  margin: var(--space-4) 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.detail__why {
  margin: var(--space-6) 0 0;
}

.detail__why div {
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
}

.detail__why dt {
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 500;
}

.detail__why dd {
  margin: var(--space-2) 0 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.detail__example {
  margin: var(--space-6) 0 0;
  padding: var(--space-3) 0 0;
  color: var(--ink);
  border-top: 1px solid var(--line);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.76rem;
  line-height: 1.55;
}

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  border-bottom: 1px solid var(--line);
}

.tab-button {
  position: relative;
  min-height: 36px;
  padding: 0 var(--space-4);
  color: var(--ink-faint);
  background: transparent;
  border: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
}

.tab-button:hover,
.tab-button.is-active {
  color: var(--ink);
}

.tab-button.is-active::after {
  display: none;
}

.tab-button.is-active {
  color: var(--accent);
  background: var(--accent-wash);
}

.tab-panel {
  min-height: 245px;
  margin-top: var(--space-4);
  padding: var(--space-6);
  background: var(--paper-deep);
  border-radius: var(--radius-md);
}

.tab-panel__grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.25fr);
  gap: var(--space-12);
}

.tab-panel h3 {
  margin-top: var(--space-3);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.2;
}

.tab-panel__summary {
  max-width: 360px;
  margin: var(--space-5) 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.tab-panel__details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
  margin: 0;
}

.tab-panel__details > div {
  padding-top: var(--space-3);
  border-top: 1px solid var(--line);
}

.tab-panel__details dt {
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 500;
}

.tab-panel__details dd {
  margin: var(--space-2) 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.tab-panel__note {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: var(--space-4);
  color: var(--ink);
  border-top: 1px solid var(--line);
  font-size: 13px;
  font-weight: 500;
}

.skill-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  gap: clamp(var(--space-8), 6vw, var(--space-16));
  align-items: start;
}

.skill-form-card {
  min-width: 0;
}

.skill-form-card__topline {
  display: flex;
  justify-content: space-between;
  gap: var(--space-5);
  align-items: end;
  padding-bottom: var(--space-5);
  padding: var(--space-4) var(--space-5);
  background: var(--paper-deep);
  border-radius: var(--radius-md);
}

.skill-form-card__instruction {
  margin: var(--space-2) 0 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.text-button {
  flex: 0 0 auto;
  min-height: 36px;
  padding: 0 var(--space-4);
  color: var(--accent-deep);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
}

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

.form-error {
  margin: var(--space-5) 0 0;
  color: var(--danger);
  padding: var(--space-3) var(--space-4);
  background: var(--danger-wash);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--space-6);
  margin-top: var(--space-6);
}

.field {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: var(--space-4) 0 var(--space-5);
  border-top: 1px solid var(--line);
}

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

.field > span {
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 500;
}

.field textarea {
  width: 100%;
  min-height: 84px;
  margin-top: var(--space-3);
  padding: var(--space-3);
  color: var(--ink);
  resize: vertical;
  background: var(--paper-deep);
  border: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  outline: 0;
  font-size: 0.92rem;
  line-height: 1.55;
}

.field textarea::placeholder {
  color: var(--ink-faint);
}

.field textarea:focus {
  border-color: var(--accent);
  box-shadow: none;
}

.field textarea[aria-invalid="true"] {
  border-color: var(--danger);
  box-shadow: none;
}

.field small {
  display: block;
  margin-top: var(--space-2);
  line-height: 1.45;
}

.field-error {
  min-height: 1.1em;
  color: var(--danger);
}

.field--linked {
  border-top-color: var(--accent);
}

.field--linked:has(.field__connector--neutral) {
  border-top-color: var(--ink-faint);
}

.field__connector {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--accent-deep);
  font-size: 0.78rem;
  font-weight: 600;
}

.field__connector--neutral {
  color: var(--ink-faint);
}

.primary-button {
  display: inline-flex;
  gap: var(--space-3);
  align-items: center;
  min-height: 36px;
  margin-top: var(--space-4);
  padding: 0 18px;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
}

.primary-button:hover {
  color: var(--ink);
  background: var(--paper-deep);
  border-color: var(--border-strong, var(--line));
}

.summary-card {
  min-height: 365px;
  padding: var(--space-6);
  background: var(--paper-deep);
  border-radius: var(--radius-md);
}

.summary-card__number {
  display: block;
  color: var(--accent-deep);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8rem;
  font-weight: 500;
}

.summary-card h3 {
  margin-top: var(--space-5);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.15;
}

.summary-card > p:not(.map-label) {
  margin: var(--space-4) 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.summary-card__quote {
  margin-top: var(--space-8);
  padding-top: var(--space-4);
  color: var(--ink);
  border-top: 1px solid var(--line);
  font-size: 13px;
  font-weight: 500;
}

.closing-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.72fr);
  gap: var(--space-10);
  margin-top: var(--space-12);
  padding: var(--space-8) var(--space-6);
  background: var(--paper-deep);
  border-radius: var(--radius-md);
}

.closing-section h2 {
  margin-top: var(--space-3);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.2;
}

.closing-section > p {
  max-width: 420px;
  margin: var(--space-10) 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.closing-section__grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--ink);
}

.closing-section__grid div {
  display: grid;
  gap: var(--space-2);
}

.closing-section__grid strong {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
}

.closing-section__grid span {
  color: var(--ink-soft);
  font-size: 13px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) 0 var(--space-8);
  color: var(--ink-faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem;
}

.toast {
  position: fixed;
  z-index: 10;
  right: var(--space-5);
  bottom: var(--space-5);
  max-width: min(360px, calc(100vw - 40px));
  padding: var(--space-3) var(--space-4);
  color: var(--paper);
  background: var(--ink);
  border-radius: var(--radius-pill);
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease);
}

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

@media (max-width: 1080px) {
  .topbar__note {
    display: none;
  }

  .hero__grid {
    gap: var(--space-10);
  }
}

@media (max-width: 900px) {
  .topbar__inner {
    flex-wrap: wrap;
    gap: var(--space-4);
    padding: var(--space-4) 0;
  }

  .week-nav {
    order: 3;
    width: 100%;
    min-height: 48px;
  }

  .week-nav__item {
    flex: 1 1 0;
    min-width: 0;
  }

  .week-nav__label {
    display: none;
  }

  .hero__grid,
  .workflow-layout,
  .skill-layout {
    grid-template-columns: 1fr;
  }

  .hero__map {
    max-width: 560px;
  }

  .explanation-panel,
  .summary-card {
    padding-left: 0;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

@media (max-width: 680px) {
  .topbar__inner,
  .page-shell {
    width: min(100% - 32px, var(--content-width));
  }

  .brand__meta {
    display: none;
  }

  .hero {
    padding: var(--space-12) 0 var(--space-10);
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero__lead {
    font-size: 13px;
  }

  .desktop-only {
    display: none;
  }

  .orientation,
  .closing-section {
    display: block;
  }

  .orientation p {
    margin-top: var(--space-2);
  }

  .orientation__path {
    margin-top: var(--space-4);
    flex-wrap: wrap;
  }

  .content-section {
    padding: var(--space-12) 0;
  }

  .section-heading h2 {
    font-size: 20px;
  }

  .workflow-canvas__header,
  .skill-form-card__topline {
    display: block;
  }

  .workflow-canvas__hint {
    display: block;
    margin-top: var(--space-3);
    text-align: left;
  }

  .workflow-steps {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding-left: var(--space-2);
  }

  .workflow-steps::before {
    top: 52px;
    right: auto;
    bottom: 52px;
    left: 16px;
    width: 1px;
    height: auto;
  }

  .workflow-step {
    grid-template-columns: 30px minmax(0, 1fr);
    grid-template-rows: auto auto auto;
    column-gap: var(--space-3);
    padding: 0;
  }

  .workflow-step__number {
    grid-row: 1 / span 3;
  }

  .workflow-step__role,
  .workflow-step__title,
  .workflow-step__short {
    grid-column: 2;
  }

  .tab-panel__grid,
  .tab-panel__details,
  .field-grid,
  .closing-section__grid {
    grid-template-columns: 1fr;
  }

  .tab-panel__note,
  .field--wide,
  .closing-section__grid {
    grid-column: auto;
  }

  .tab-panel__grid {
    gap: var(--space-8);
  }

  .tab-list {
    gap: var(--space-4);
  }

  .summary-card {
    min-height: 0;
  }

  .closing-section {
    padding: var(--space-12) 0;
  }

  .closing-section > p {
    margin-top: var(--space-5);
  }

  .closing-section__grid {
    gap: var(--space-5);
    margin-top: var(--space-8);
  }

  .footer {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  .topbar,
  .toast,
  .week-nav,
  .workflow-canvas__hint,
  .text-button,
  .primary-button {
    display: none !important;
  }

  .page-shell {
    width: 100%;
  }

  .hero,
  .content-section,
  .closing-section {
    padding: 24px 0;
  }
}

/* ── 강의 자료 (index.html) ─────────────────────────── */

.lesson-block {
  max-width: 720px;
}

.lesson-block__quote {
  margin: 0;
  padding: var(--space-4) var(--space-5);
  background: var(--paper-deep);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.95rem;
  font-weight: 500;
}

.lesson-block__text {
  margin: var(--space-5) 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.65;
}

.lesson-block__text strong {
  color: var(--ink);
}

.lesson-block__question {
  margin: var(--space-6) 0 0;
  color: var(--ink);
  font-size: 0.95rem;
}

.lesson-block__question--strong {
  padding: var(--space-4) var(--space-5);
  background: var(--paper-deep);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.lesson-flow {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.lesson-flow li {
  display: flex;
  gap: var(--space-4);
  align-items: baseline;
}

.lesson-flow b {
  flex: 0 0 auto;
  color: var(--accent-deep);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 500;
}

.lesson-flow span {
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.5;
}

.lesson-flow--inline {
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-3) var(--space-5);
}

.lesson-concept {
  margin-top: var(--space-8);
  padding: var(--space-6);
  background: var(--paper-deep);
  border-radius: var(--radius-md);
}

.lesson-concept:first-of-type {
  margin-top: 0;
}

.lesson-concept__head {
  display: flex;
  gap: var(--space-4);
  align-items: baseline;
}

.lesson-concept__badge {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 500;
  align-self: center;
}

.lesson-concept__badge--accent {
  color: var(--paper-bright);
  background: var(--accent);
  border-color: var(--accent);
}

.lesson-concept__head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.3;
}

.lesson-concept__head p {
  margin: var(--space-2) 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.lesson-concept__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-5) 0 0;
  padding: 0;
  list-style: none;
}

.lesson-concept__list li {
  padding: 4px 12px;
  color: var(--ink-soft);
  background: var(--paper);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
}

.lesson-concept__note {
  margin: var(--space-5) 0 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.55;
}

.lesson-assembly {
  display: grid;
  gap: 0;
}

.lesson-assembly__step {
  padding: var(--space-5) 0;
  border-top: 1px solid var(--line);
}

.lesson-assembly__head {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  align-items: baseline;
}

.lesson-assembly__num {
  color: var(--ink-faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
}

.lesson-assembly__role {
  padding: 2px 10px;
  color: var(--accent-deep);
  background: var(--accent-wash);
  border-radius: var(--radius-pill);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 500;
}

.lesson-assembly__role--accent {
  color: var(--paper-bright);
  background: var(--accent);
}

.lesson-assembly__title {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
}

.lesson-assembly__step p {
  max-width: 680px;
  margin: var(--space-3) 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

.lesson-assembly__takeaway {
  max-width: 680px;
  margin: var(--space-6) 0 0;
  padding: var(--space-4) var(--space-5);
  color: var(--ink);
  background: var(--paper-deep);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
}

.lesson-pipeline {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  align-items: center;
  margin: var(--space-6) 0 0;
}

.lesson-pipeline span,
.lesson-pipeline em {
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.76rem;
  font-style: normal;
}

.lesson-pipeline span {
  color: var(--ink-soft);
  background: var(--paper-deep);
}

.lesson-pipeline em {
  color: var(--paper-bright);
  background: var(--accent);
}

.lesson-pipeline i {
  color: var(--ink-faint);
  font-style: normal;
}

/* ── 워크시트 해체 결과 ─────────────────────────────── */

.result-flow {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-5) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: result-step;
}

.result-flow li {
  display: flex;
  gap: var(--space-3);
  align-items: baseline;
}

.result-flow li::before {
  counter-increment: result-step;
  content: counter(result-step);
  flex: 0 0 auto;
  color: var(--ink-faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
}

.result-flow span {
  color: var(--ink-soft);
  font-size: 0.85rem;
  line-height: 1.5;
}

.result-parts {
  display: grid;
  gap: 0;
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
}

.result-part {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: start;
  padding: var(--space-3) 0;
}

.result-part + .result-part {
  border-top: 1px solid var(--line-soft);
}

.result-part__role {
  justify-self: start;
  padding: 3px 10px;
  color: var(--accent-deep);
  background: var(--accent-wash);
  border-radius: var(--radius-pill);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem;
  font-weight: 500;
  white-space: nowrap;
}

.result-part__role--solid {
  color: var(--paper-bright);
  background: var(--accent);
}

.result-part__text {
  color: var(--ink-soft);
  font-size: 0.85rem;
  line-height: 1.55;
}

.result-out {
  margin: var(--space-4) 0 0;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.result-out strong {
  color: var(--ink);
}

.prompt-block {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--ink);
}

.prompt-block__head {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  align-items: center;
}

.text-button--small {
  min-height: 28px;
  padding: 0 var(--space-3);
  font-size: 11px;
}

.prompt-block__body {
  max-height: 320px;
  margin: var(--space-3) 0 0;
  padding: var(--space-4);
  overflow-y: auto;
  white-space: pre-wrap;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  line-height: 1.6;
}