/* Pretendard v1.3.9 — SIL OFL 1.1; see assets/fonts/pretendard/LICENSE.txt. */
@font-face {
  font-family: "Pretendard Variable";
  src: url("../assets/fonts/pretendard/PretendardVariable.woff2") format("woff2");
  font-weight: 45 920;
  font-style: normal;
  font-display: swap;
}
/* 01. 공통 토큰 — 색상, 글꼴, 콘텐츠 너비 */
:root {
  --ink: #18232e;
  --muted: #5a6775;
  --accent: #2254cd;
  --accent-dark: #193e99;
  --line: #dce2e9;
  --paper: #fff;
  --surface: #f5f7fa;
  --tint: #edf2fa;
  --max: 1240px;
  --font: "Pretendard Variable", "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 105px; scrollbar-gutter: stable; }
body {
  margin: 0; color: var(--ink); background: var(--paper);
  font: 16px/1.8 var(--font); word-break: keep-all; overflow-wrap: anywhere;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4,p,figure,dl { margin: 0; }
h1,h2,h3,h4 { line-height: 1.35; font-weight: 600; letter-spacing: -.04em; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
img { display: block; max-width: 100%; height: auto; }
ul,ol { margin: 0; padding: 0; }
p+p { margin-top: 16px; }
a,button,summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible {
  outline: 3px solid var(--accent); outline-offset: 5px;
}
::selection { background: #dce6ff; }
.container { width: min(var(--max), calc(100% - 96px)); margin-inline: auto; }
.eyebrow,.micro { font-family: var(--mono); font-size: .75rem; line-height: 1.65; letter-spacing: .025em; }
.eyebrow { color: var(--accent); }
.micro { color: var(--muted); }
.skip-link { position: fixed; top: -100px; left: 20px; padding: 12px 20px; background: var(--ink); color: #fff; z-index: 100; }
.skip-link:focus { top: 12px; }

/* 02. 헤더와 공통 컨트롤 — JavaScript 없이도 메뉴를 사용할 수 있습니다. */
.site-header { position: sticky; top: 0; z-index: 20; background: #fffffff7; border-bottom: 1px solid var(--line); }
.header-inner { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 15px; font-size: .9rem; font-weight: 600; white-space: nowrap; }
.brand-mark { font-size: 1.55rem; letter-spacing: -.09em; padding-right: 16px; border-right: 1px solid var(--line); }
.brand-mark span { color: var(--accent); }
.site-nav { display: flex; align-items: center; gap: 32px; font-size: .875rem; }
.site-nav a { padding: 10px 0; color: var(--muted); }
.site-nav a:hover,.site-nav a[aria-current] { color: var(--accent); }
.menu-toggle { border: 0; background: none; padding: 10px; color: var(--ink); }
.menu-toggle[hidden] { display: none; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 22px; background: var(--accent); color: #fff;
  border: 1px solid var(--accent); border-radius: 2px; font-size: .875rem; font-weight: 600;
  transition: background .15s;
}
.button:hover { background: var(--accent-dark); }
.text-link { font-size: .875rem; padding-block: 6px; border-bottom: 1px solid var(--line); }
.text-link:hover { color: var(--accent); border-color: var(--accent); }
.project-actions { display:flex; align-items:center; flex-wrap:wrap; gap:16px; }
.case-hero .project-actions { margin-top:24px; }

/* 03. 프로젝트 중심 메인 — 짧은 소개 → 대표 프로젝트 → 프로필 */
.intro { padding-block: 42px 40px; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.intro h1 { font-size: clamp(1.9rem, 2.7vw, 2.6rem); margin-top: 13px; }
.intro-profile { padding-left: 30px; border-left: 1px solid var(--line); max-width: 410px; }
.intro-profile>p:first-child { display: flex; align-items: baseline; gap: 12px; }
.intro-profile strong { font-size: 1.1rem; }
.intro-profile p { font-size: .875rem; color: var(--muted); }
.intro-profile>p:first-child { color: var(--ink); }
.intro-profile p+p { margin-top: 8px; }
.intro-profile .intro-role { font-size: .8125rem; color: var(--ink); }
.project-section { padding-bottom: 48px; }
.section-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 20px 0; border-top: 1px solid var(--line); }
.section-heading h2 { font-size: 1rem; }
.project-entry { border-block: 1px solid var(--line); }
.project-feature { display: grid; grid-template-columns: minmax(0,1fr); align-items: start; gap: 28px; padding: 30px 0; }
.project-copy { max-width: 900px; }
.project-copy h3 { font-size: clamp(1.8rem,2.7vw,2.5rem); margin-top: 18px; }
.project-english { color: var(--muted); font-size: .8125rem; margin-top: 6px; }
.project-description { margin-top: 20px; color: var(--muted); font-size: .9375rem; }
.project-facts { display: flex; flex-wrap: wrap; gap: 12px 38px; margin: 23px 0; }
.project-facts>div { display: grid; grid-template-columns: 78px minmax(0,1fr); gap: 8px; font-size: .75rem; margin-top: 8px; }
.project-facts dt { color: var(--muted); }
.project-facts dd { margin: 0; }
.project-preview { min-width: 0; padding: 22px; background: var(--tint); }
.project-preview figcaption { color: var(--muted); font-size: .75rem; margin-top: 14px; }
.project-evidence { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 28px; padding: 24px 0; border-top: 1px solid var(--line); align-items: center; }
.evidence-scope { display: flex; flex-direction: column; gap: 6px; }
.evidence-scope strong { font-size: .9375rem; font-weight: 500; }
.metric { padding-left: 28px; border-left: 1px solid var(--line); }
.metric>strong { font-size: 2.45rem; font-weight: 500; letter-spacing: -.05em; line-height: 1.3; font-variant-numeric: tabular-nums; }
.metric>strong>span { font-size: .875rem; font-weight: 400; letter-spacing: 0; margin-left: 6px; }
.metric p { font-size: .8125rem; color: var(--muted); margin-top: 4px; }
.evidence-note { color: var(--muted); font-size: .8125rem; }
.future-projects { display: flex; gap: 25px; align-items: baseline; margin-top: 24px; color: var(--muted); }
.future-projects p { font-size: .8125rem; }
.profile-section { display: grid; grid-template-columns: 1fr 2fr; gap: 48px; padding-block: 46px; border-top: 1px solid var(--line); }
.profile-section h2 { font-size: 1.5rem; margin-top: 10px; }
.profile-copy>p { color: var(--muted); font-size: .9375rem; }
.profile-copy .profile-skills { font-size: .8125rem; color: var(--ink); padding-top: 15px; border-top: 1px solid var(--line); }
.contact-section { background: var(--ink); color: #fff; }
.contact-inner { padding-block: 34px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.contact-section .eyebrow { color: #a8c0ff; }
.contact-section h2 { font-size: 1.4rem; margin-top: 6px; }
.contact-section h2 span { font-size: .875rem; font-weight: 400; letter-spacing: 0; margin-left: 12px; color: #c7d0da; }
.contact-note { color: #c7d0da; font-size: .875rem; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 22px; color: var(--muted); font-size: .75rem; }

/* 04. 공개용 재구성 UI — 내부 자료를 포함하지 않는 정적 화면 */
.mock-app { background: #fff; border: 1px solid #d4dce6; min-width: 0; box-shadow: 0 8px 25px #18232e06; }
.mock-appbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 12px 16px; background: #24303d; color: #fff; }
.mock-appbar strong { font-size: .8125rem; font-weight: 500; }
.mock-badge { color: #d0dfff; font: .625rem/1.6 var(--mono); }
.mock-nav { display: flex; flex-wrap: wrap; gap: 20px; padding: 10px 16px; border-bottom: 1px solid var(--line); font-size: .75rem; color: var(--muted); }
.mock-nav .active { color: var(--accent); font-weight: 600; }
.dashboard-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 12px; padding: 14px; background: var(--surface); }
.mock-panel { min-width: 0; border: 1px solid var(--line); background: #fff; padding: 12px; }
.panel-heading { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; font-size: .75rem; }
.panel-heading strong { font-weight: 600; }
.panel-heading>span { color: var(--muted); font-size: .625rem; }
.calendar-week,.calendar-days { display: grid; grid-template-columns: repeat(7,minmax(0,1fr)); gap: 3px; }
.calendar-week { color: var(--muted); text-align: center; font-size: .625rem; margin-bottom: 7px; }
.calendar-days>div { min-height: 69px; border: 1px solid var(--line); padding: 4px 3px; font-size: .625rem; background: #fafbfd; }
.calendar-days>div.today { border-color: #779ae7; background: #f0f5ff; }
.calendar-days i { display: block; font-size: .5625rem; font-style: normal; background: #dbe6fb; color: #244d9f; text-align: center; margin-top: 5px; border-radius: 2px; white-space: nowrap; }
.calendar-days i.light { background: #e9edf3; color: #526171; }
.mock-note { font-size: .6875rem; color: var(--muted); margin-top: 14px; }
.task-summary { padding: 10px; border: 1px solid var(--line); background: #fafbfd; margin-top: 8px; }
.task-summary strong { display: block; font-size: .75rem; margin-top: 5px; }
.task-summary p { font-size: .625rem; color: var(--muted); margin-top: 3px; }
.status { display: inline-block; font-size: .625rem; line-height: 1.5; background: var(--tint); color: var(--accent); padding: 3px 7px; border-radius: 2px; white-space: nowrap; }
.status.neutral { background: #e9edf2; color: #526171; }
.task-summary.compact { display: flex; flex-wrap: wrap; gap: 5px 10px; align-items: center; justify-content: space-between; }
.task-summary.compact strong { margin: 0; }
.task-summary.compact>span { font-size: .625rem; color: var(--muted); }
.dashboard-bottom { display: flex; align-items: center; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding: 12px 16px; font-size: .6875rem; border-top: 1px solid var(--line); }
.dashboard-bottom>span:nth-child(2) { color: var(--muted); }
.migration-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 16px; padding: 20px; background: var(--surface); }
.mock-fields { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px 18px; }
.mock-fields>div>span { display: block; color: var(--muted); font-size: .75rem; margin-bottom: 5px; }
.mock-fields strong { display: block; padding: 8px 10px; border: 1px solid var(--line); font-size: .8125rem; font-weight: 400; }
.mock-fields .field-wide { grid-column: 1/-1; }
.mock-options,.mock-filters { display: flex; flex-wrap: wrap; gap: 7px; font-size: .75rem; }
.mock-options { margin-top: 18px; }
.mock-options>span { padding: 3px 9px; border: 1px solid var(--line); border-radius: 20px; color: var(--muted); }
.mock-checklist { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 14px 10px; padding-top: 7px; }
.mock-checklist li { font-size: .75rem; display: flex; align-items: baseline; gap: 8px; }
.mock-checklist li:before { content: ""; border: 1px solid #8292a6; width: 12px; height: 12px; flex-shrink: 0; }
.mock-checklist li.done:before { content: "✓"; background: var(--accent); border-color: var(--accent); color: #fff; font-size: 10px; line-height: 12px; text-align: center; }
.mock-list { padding: 20px; }
.mock-filters { margin-bottom: 16px; }
.mock-filters>span { padding: 5px 9px; background: var(--surface); color: var(--muted); }
.mock-filters>span.selected { background: var(--tint); color: var(--accent); }
.table-scroll { overflow-x: auto; }
.mock-table { width: 100%; min-width: 530px; border-collapse: collapse; font-size: .75rem; text-align: left; }
.mock-table th,.mock-table td { border-bottom: 1px solid var(--line); padding: 12px 10px; }
.mock-table th { background: var(--surface); font-weight: 500; color: var(--muted); }
.mock-table .status { font-size: .6875rem; }
.operations-form { padding: 22px; background: #fafbfd; border-bottom: 1px solid var(--line); }
.operations-form .mock-fields { grid-template-columns: repeat(4,minmax(0,1fr)); }
.operations-form .field-wide { grid-column: span 2; }
.operations-form .mock-fields strong { background: #fff; }

/* 05. Case Study — 6개 흐름, 3개 모듈 */
.case-hero { padding: 30px 0 42px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 12px; font-size: .8125rem; color: var(--muted); margin-bottom: 34px; }
.breadcrumb a:hover { color: var(--accent); }
.case-hero h1 { font-size: clamp(2.5rem,4.6vw,4.1rem); margin: 18px 0; line-height: 1.22; }
.case-hero h1>span { color: var(--accent); }
.case-lead { color: var(--muted); font-size: 1.15rem; max-width: 800px; }
.case-meta { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 30px; border-top: 1px solid var(--line); margin-top: 30px; padding-top: 22px; }
.case-meta dt { font-family: var(--mono); font-size: .75rem; color: var(--muted); margin-bottom: 7px; }
.case-meta dd { margin: 0; font-size: .875rem; }
.ownership-note { margin-top: 22px; font-size: .8125rem; color: var(--muted); }
.case-layout { display: grid; grid-template-columns: 180px minmax(0,1fr); gap: 58px; align-items: start; }
.case-toc { position: sticky; top: 110px; padding-top: 28px; }
.case-toc ol { list-style: none; margin-top: 15px; }
.case-toc a { display: flex; gap: 12px; font-size: .8125rem; color: var(--muted); padding: 8px 0; }
.case-toc a>span { font: .6875rem/1.8 var(--mono); color: #788494; }
.case-toc a:hover,.case-toc a[aria-current] { color: var(--accent); }
.case-section { padding: 44px 0; border-top: 1px solid var(--line); }
.case-section h2 { font-size: clamp(1.7rem,2.3vw,2.1rem); margin: 16px 0 22px; }
.case-section>p:not(.eyebrow) { color: var(--muted); }
.case-section>p>strong { font-weight: 600; color: var(--ink); }
.comparison { display: grid; grid-template-columns: 1fr 1fr; margin: 28px 0; border: 1px solid var(--line); }
.comparison>div { padding: 25px; background: var(--surface); }
.comparison>div+div { background: var(--tint); border-left: 1px solid var(--line); }
.comparison h3 { font-size: 1.15rem; margin: 12px 0; }
.comparison p { color: var(--muted); font-size: .875rem; }
.module-index { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.module-index>a { padding: 16px 0; border-bottom: 1px solid var(--line); }
.module-index>a:hover { border-color: var(--accent); }
.module-index>a>span { font: .75rem/1.6 var(--mono); color: var(--accent); }
.module-index strong { display: block; font-size: .9375rem; margin: 8px 0; }
.module-index p { font-size: .8125rem; color: var(--muted); }
.disclosure-inline { font-size: .8125rem; border-left: 2px solid var(--accent); padding-left: 16px; }
.module-section { margin-top: 42px; scroll-margin-top: 105px; }
.module-section+.module-section { border-top: 1px solid var(--line); padding-top: 32px; }
.module-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
.module-heading h3 { margin-top: 6px; font-size: 1.5rem; }
.module-purpose { border: 1px solid var(--line); color: var(--muted); padding: 3px 9px; font-size: .75rem; white-space: nowrap; }
.module-section>p { color: var(--muted); font-size: .9375rem; }
.screenshot-frame { margin-top: 23px; }
.screenshot-frame figcaption { font-size: .75rem; color: var(--muted); margin-top: 12px; }
.screenshot-frame .dashboard-grid { gap: 20px; padding: 22px; }
.screenshot-frame .mock-panel { padding: 18px; }
.screenshot-frame .calendar-days>div { min-height: 86px; }
.screenshot-frame .calendar-days i { font-size: .6875rem; padding-block: 2px; }
.screenshot-frame .panel-heading { font-size: .875rem; }
.screenshot-frame .task-summary { padding: 12px; }
.screenshot-frame .task-summary strong { font-size: .875rem; }
.screenshot-frame .task-summary p,.screenshot-frame .task-summary.compact>span { font-size: .75rem; }
.feature-outcome { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 25px; margin-top: 22px; }
.feature-outcome dt { font: .75rem/1.6 var(--mono); color: var(--accent); margin-bottom: 8px; }
.feature-outcome dd { margin: 0; font-size: .875rem; color: var(--muted); }
.feature-details { border-block: 1px solid var(--line); margin-top: 25px; background: #fafbfd; }
.feature-details summary { cursor: pointer; padding: 15px 18px; font-size: .875rem; color: var(--ink); }
.feature-details[open] summary { border-bottom: 1px solid var(--line); }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; padding: 24px; }
.detail-grid h4 { font-size: .9375rem; margin-bottom: 8px; }
.detail-grid p { color: var(--muted); font-size: .8125rem; }
.decision-list { list-style: none; }
.decision-list li { display: grid; grid-template-columns: 1fr 1.4fr; gap: 28px; padding: 23px 0; border-top: 1px solid var(--line); }
.decision-list h3 { font-size: 1rem; }
.decision-list p { color: var(--muted); font-size: .875rem; }
.subheading { font-size: 1.25rem; margin: 32px 0 15px; }
.architecture { padding: 28px; margin-top: 25px; background: var(--surface); border: 1px solid var(--line); text-align: center; }
.arch-user { font-size: .875rem; }
.arch-arrow { color: var(--accent); padding: 8px; line-height: 1.3; }
.arch-box { border: 1px solid var(--line); background: #fff; max-width: 430px; padding: 17px; margin: auto; }
.arch-box strong { display: block; font-size: 1rem; font-weight: 600; }
.arch-box span { display: block; font-size: .8125rem; color: var(--muted); margin-top: 3px; }
.arch-host { border: 1px dashed #8fa5ca; max-width: 570px; margin: auto; padding: 15px; }
.arch-host>p { font-size: .75rem; color: var(--muted); margin-bottom: 12px; }
.arch-box.api { background: var(--accent); color: #fff; border-color: var(--accent); }
.arch-box.api span { color: #e1eaff; }
.architecture figcaption { font-size: .75rem; color: var(--muted); margin-top: 20px; }
.stack-list { padding: 6px 24px; }
.stack-list>div { display: grid; grid-template-columns: 1fr 2fr; gap: 20px; padding: 15px 0; border-bottom: 1px solid var(--line); font-size: .8125rem; }
.stack-list>div:last-child { border: 0; }
.stack-list dd { margin: 0; color: var(--muted); }
.impact-block { padding: 26px 30px; margin-top: 25px; background: var(--tint); }
.impact-block.secondary { background: var(--surface); margin-top: 16px; }
.impact-label { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; font-size: .8125rem; }
.impact-label strong { font-weight: 500; color: var(--accent); }
.impact-label>span { color: var(--muted); font-size: .75rem; }
.impact-numbers { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-top: 15px; }
.impact-numbers strong { font-size: 3.25rem; letter-spacing: -.05em; line-height: 1.35; font-weight: 500; }
.impact-numbers strong>span,.impact-numbers strong>small { font-size: 1rem; letter-spacing: 0; font-weight: 400; margin-left: 5px; }
.impact-numbers p { font-size: .875rem; color: var(--muted); }
.impact-footnote { margin-top: 17px; font-size: .8125rem; }
.iteration-flow { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0; }
.iteration-flow li { font-size: .8125rem; padding: 7px 12px; background: var(--tint); color: var(--accent); }
.iteration-flow li:not(:last-child):after { content: "→"; display: inline-block; margin-left: 14px; }
.improvements { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 25px; padding-left: 18px; font-size: .875rem; color: var(--muted); }
.case-navigation { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; padding: 28px 0; border-top: 1px solid var(--line); }
.case-disclosure { background: var(--surface); color: var(--muted); font-size: .8125rem; padding: 22px; margin: 8px 0 44px; }

/* 06. Tablet / mobile — 한글 줄바꿈과 글자 확대에 대응 */
@media(min-width:761px) { .menu-toggle { display: none; } }
@media(max-width:1100px) {
  .container { width: calc(100% - 64px); }
  .project-feature { gap: 28px; }
  .project-preview { padding: 16px; }
  .project-evidence { gap: 20px; }
  .evidence-note { font-size: .75rem; }
  .dashboard-grid { grid-template-columns: 1fr 1fr; padding: 10px; gap: 10px; }
  .calendar-days>div { padding-inline: 1px; }
  .case-layout { grid-template-columns: 160px minmax(0,1fr); gap: 35px; }
  .operations-form .mock-fields { grid-template-columns: 1fr 1fr; }
  .screenshot-frame .dashboard-grid { gap: 12px; padding: 14px; }
  .screenshot-frame .mock-panel { padding: 12px; }
  .screenshot-frame .calendar-days i { font-size: .5625rem; }
}
@media(max-width:900px) {
  .intro { align-items: flex-start; gap: 25px; }
  .intro-profile { max-width: 310px; padding-left: 22px; }
  .project-feature { grid-template-columns: 1fr; gap: 28px; }
  .project-preview { padding: 24px; }
  .project-evidence { grid-template-columns: 1.2fr 1fr 1fr; }
  .evidence-note { display: none; }
  .dashboard-grid { grid-template-columns: 1.2fr 1fr; padding: 16px; gap: 16px; }
  .case-layout { display: block; }
  .case-toc { position: static; border-top: 1px solid var(--line); padding: 22px 0; }
  .case-toc ol { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 0 20px; margin-top: 10px; }
}
@media(max-width:760px) {
  .container { width: calc(100% - 40px); }
  .header-inner { min-height: 70px; flex-wrap: wrap; gap: 0; }
  .menu-toggle { display: inline-flex; gap: 14px; align-items: center; }
  .site-nav { width: 100%; gap: 25px; flex-wrap: wrap; padding: 8px 0 18px; }
  .js .site-nav:not(.is-open) { display: none; }
  .intro { padding-block: 28px; display: block; }
  .intro h1 { font-size: 1.9rem; margin-top: 10px; }
  .intro-profile { border: 0; padding: 0; margin-top: 20px; max-width: none; }
  .intro-profile>p:first-child { font-size: .8125rem; }
  .intro-profile>p:last-child { display: none; }
  .intro-profile .intro-role { font-size: .75rem; }
  .section-heading { padding-block: 16px; }
  .section-heading>.micro { font-size: .6875rem; }
  .project-feature { padding-block: 24px; }
  .project-copy { display: block; }
  .project-copy h3 { font-size: 1.9rem; margin-top: 12px; }
  .project-description { margin-top: 18px; font-size: .9375rem; }
  .project-facts { margin-block: 18px; }
  .project-copy>.button { margin-top: 0; }
  .project-preview { padding: 12px; }
  .project-evidence { grid-template-columns: 1fr 1fr; gap: 18px; }
  .evidence-scope { grid-column: 1/-1; flex-direction: row; flex-wrap: wrap; justify-content: space-between; gap: 6px 16px; }
  .metric { border: 0; padding: 0; }
  .metric>strong { font-size: 2.2rem; }
  .future-projects { gap: 8px; flex-direction: column; }
  .profile-section { grid-template-columns: 1fr; gap: 20px; padding-block: 32px; }
  .contact-inner { align-items: flex-start; flex-direction: column; gap: 18px; padding-block: 28px; }
  .site-footer { flex-wrap: wrap; gap: 15px; }
  .site-footer>span:nth-child(2) { display: none; }
  .mock-appbar { padding: 10px 12px; }
  .mock-badge { font-size: .5625rem; }
  .mock-nav { gap: 13px; padding: 9px 12px; font-size: .6875rem; }
  .dashboard-grid,.screenshot-frame .dashboard-grid { grid-template-columns: 1fr; gap: 12px; padding: 12px; }
  .calendar-days>div,.screenshot-frame .calendar-days>div { min-height: 64px; padding-inline: 3px; }
  .today-panel .task-summary.compact { display: none; }
  .task-summary { padding: 9px; }
  .dashboard-bottom { font-size: .625rem; padding: 10px; }
  .dashboard-bottom>.status { display: none; }
  .migration-grid { grid-template-columns: 1fr; padding: 12px; gap: 12px; }
  .mock-fields,.operations-form .mock-fields { grid-template-columns: repeat(auto-fit,minmax(min(100%,7rem),1fr)); gap: 12px; }
  .operations-form .field-wide { grid-column: 1/-1; }
  .operations-form { padding: 14px; }
  .mock-checklist { grid-template-columns: repeat(auto-fit,minmax(min(100%,7rem),1fr)); gap: 12px; }
  .mock-list { padding: 12px; }
  .case-hero { padding: 22px 0 30px; }
  .breadcrumb { font-size: .75rem; margin-bottom: 26px; }
  .case-hero>.eyebrow { font-size: .6875rem; }
  .case-hero h1 { font-size: 2.5rem; }
  .case-lead { font-size: 1rem; }
  .case-meta { grid-template-columns: 1fr; gap: 15px; margin-top: 24px; padding-top: 20px; }
  .case-meta>div { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,2fr); gap: 15px; }
  .case-meta dt { margin: 0; }
  .case-toc ol { grid-template-columns: repeat(auto-fit,minmax(min(100%,8rem),1fr)); }
  .case-section { padding-block: 32px; }
  .case-section h2 { font-size: 1.65rem; }
  .comparison { grid-template-columns: 1fr; margin-block: 24px; }
  .comparison>div { padding: 20px; }
  .comparison>div+div { border-left: 0; border-top: 1px solid var(--line); }
  .module-index { grid-template-columns: 1fr; gap: 0; }
  .module-index>a { display: grid; grid-template-columns: 25px minmax(0,1fr); gap: 0 12px; padding: 13px 0; }
  .module-index strong { margin: 0; }
  .module-index p { grid-column: 2; margin-top: 2px; }
  .module-heading { align-items: flex-start; flex-direction: column; gap: 10px; }
  .module-heading h3 { font-size: 1.35rem; }
  .module-purpose { font-size: .6875rem; }
  .feature-outcome { grid-template-columns: 1fr; gap: 16px; }
  .feature-outcome dt { margin-bottom: 4px; }
  .detail-grid { grid-template-columns: 1fr; gap: 20px; padding: 18px; }
  .decision-list li { grid-template-columns: 1fr; gap: 12px; padding-block: 20px; }
  .architecture { padding: 18px 12px; }
  .arch-host { padding: 12px; }
  .arch-box { padding: 14px; }
  .arch-box strong { font-size: .875rem; }
  .stack-list { padding-inline: 18px; }
  .stack-list>div { grid-template-columns: 1fr; gap: 6px; }
  .impact-block { padding: 20px; }
  .impact-numbers { grid-template-columns: repeat(auto-fit,minmax(min(100%,7rem),1fr)); gap: 20px; }
  .impact-numbers strong { font-size: 2.25rem; }
  .impact-numbers strong>span,.impact-numbers strong>small { font-size: .8125rem; margin-left: 2px; }
  .improvements { grid-template-columns: 1fr; }
  .iteration-flow { gap: 8px; }
  .iteration-flow li { padding: 6px 9px; }
  .case-navigation { align-items: flex-start; }
}
@media(prefers-reduced-motion:reduce) {
  html { scroll-behavior: auto; }
  *,*:before,*:after { animation: none!important; transition: none!important; }
}
.decision-list>div{display:grid;grid-template-columns:150px minmax(0,1fr);gap:22px;border-bottom:1px solid var(--line);padding:23px 0}.decision-list>div dt{font-size:14px;font-weight:600}.decision-list>div dd{margin:0;font-size:14px;color:var(--muted)}
.dc-work-preview{background:#edf0e7}
.dc-preview-app{display:grid;grid-template-columns:170px minmax(0,1fr);border:1px solid #dce3d4;border-radius:5px;overflow:hidden;box-shadow:0 8px 25px #18332e09;font-size:12px;line-height:1.5}
.dc-preview-sidebar{background:#142b2b;color:#a3b9ae;padding:25px 18px;display:flex;flex-direction:column;gap:17px;font-size:11px}
.dc-preview-sidebar strong{font-size:20px;color:#fff;font-weight:550}.dc-preview-sidebar small{font:8px/1.6 var(--mono);letter-spacing:1px;color:#9fb7a8;margin-top:-10px;margin-bottom:19px}.dc-preview-sidebar .active{background:#2a493b;color:#d4e7d4;padding:9px;margin-inline:-8px;border-radius:3px}.dc-preview-sidebar .dc-preview-bottom{margin-top:auto;margin-bottom:0;padding-top:25px;color:#a8c59e}
.dc-preview-main{background:#f5f7f0;padding:20px 27px}.dc-preview-top{font:9px var(--mono);color:#75866b;display:flex;justify-content:space-between;border-bottom:1px solid #e1e7d9;padding-bottom:17px;margin-bottom:21px}.dc-preview-main h4{font-size:24px;color:#193e32}.dc-preview-main>p{font-size:11px;color:#73836a;margin-top:7px}.dc-preview-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:21px 0;background:none}.dc-preview-stats>div{background:#fff;border:1px solid #e1e7d9;border-radius:4px;padding:13px 17px;color:#75876b;font-size:10px}.dc-preview-stats strong{display:block;font-size:25px;color:#2c5140;font-weight:500;margin-top:7px}.dc-preview-row{display:grid;grid-template-columns:minmax(0,1fr) 90px 80px;gap:12px;align-items:center;border-bottom:1px solid #e5ebdc;background:#fff;padding:13px 17px;font-size:10px;color:#6d7e61}.dc-preview-row.header{background:#eef2e7;font-size:9px;padding-block:9px}.dc-preview-row strong{font-size:11px;color:#3e5943;font-weight:550;display:block}.dc-preview-row small{font:8px var(--mono);display:block;margin-top:5px;color:#798b6c}.dc-preview-tag{padding:3px 7px;background:#fff0d5;color:#916d2f;border-radius:3px;justify-self:start;font-size:9px}.dc-preview-tag.idle{background:#e8efdf;color:#627b4f}.dc-preview-note{padding-top:15px;color:#7c8d6c;font-size:10px}.dc-case-steps{padding-left:22px;margin:25px 0 30px}.dc-case-steps li{padding:10px 0;font-size:14px}.dc-case-steps p{font-size:13px;margin-top:6px;color:var(--muted)}
@media(max-width:650px){.dc-preview-app{grid-template-columns:1fr}.dc-preview-sidebar{display:none}.dc-preview-main{padding:17px}.dc-preview-row{grid-template-columns:minmax(0,1fr) 62px 58px;gap:7px;padding:12px 9px}.dc-preview-stats{gap:7px}.dc-preview-stats>div{padding:10px}.dc-preview-row strong{font-size:10px}.dc-preview-row small{font-size:8px}.dc-preview-top{font-size:8px}.dc-preview-main h4{font-size:21px}}
.dc-preview-app{grid-template-columns:1fr;border-color:#dce0e6}
.dc-preview-sidebar{display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px;padding:16px 20px;background:#23272d;color:#dbe0e7}
.dc-preview-sidebar strong{flex-basis:100%;font-size:20px;margin-bottom:6px}.dc-preview-sidebar small{display:none}.dc-preview-sidebar>span{font-size:12px;background:#464e59;border-radius:3px;padding:7px 9px}.dc-preview-sidebar .active{margin:0;background:#fff;color:#252a32;padding:7px 9px}
.dc-preview-main{background:#f4f5f7}.dc-preview-main h4,.dc-preview-stats strong,.dc-preview-row strong{color:#252a32}.dc-preview-main>p,.dc-preview-top,.dc-preview-stats>div,.dc-preview-row,.dc-preview-row small,.dc-preview-note{color:#586474}.dc-preview-row.header{background:#edf0f5}.dc-preview-stats>div,.dc-preview-row,.dc-preview-top{border-color:#dce0e6}.dc-preview-row strong{font-size:13px}.dc-preview-row small{font:11px Pretendard,sans-serif}.dc-preview-row{font-size:12px}.dc-preview-tag{font-size:11px}.dc-preview-note{font-size:12px}
@media(max-width:650px){.dc-preview-sidebar{display:flex;padding:15px}.dc-preview-sidebar>span:not(.active){display:none}.dc-preview-row strong{font-size:12px}.dc-preview-row small{font-size:10px}.dc-preview-tag{font-size:10px}}
@media(max-width:650px){.decision-list>div{grid-template-columns:1fr;gap:8px}}
@media print {
  .site-header,.case-toc,.skip-link,.menu-toggle,.case-navigation { display: none!important; }
  .container { width: 100%; }
  .case-layout { display: block; }
  .case-hero h1 { font-size: 2.5rem; }
  .screenshot-frame,.impact-block,.architecture { break-inside: avoid; }
  .contact-section { background: #fff; color: var(--ink); }
  .contact-section .eyebrow,.contact-note { color: var(--muted); }
  .case-section { padding-block: 24px; }
}