:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface-soft: #fbfbfd;
  --text: #1f2328;
  --muted: #66707a;
  --soft: #6b7480;
  --line: #dfe3e8;
  --line-strong: #cfd5dc;
  --accent: #7c8cf2;
  --accent-ink: #5060c9;
  --accent-soft: #eef0ff;
  --warm: #e9a497;
  --code-bg: #f3f4f6;
  --shadow: 0 12px 32px rgba(31, 35, 40, 0.055);
  --max: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 8%, rgba(124, 140, 242, .055), transparent 28%),
    linear-gradient(180deg, #fafbfc 0%, var(--bg) 100%);
  color: var(--text);
  font-family: Pretendard, Inter, "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }

.shell {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 20px 0 36px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 56px;
  border-bottom: 1px solid var(--line);
}

.identity {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.identity-mark {
  display: grid;
  place-items: center;
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: #3a444e;
  box-shadow: 0 1px 2px rgba(31, 35, 40, .05);
  transition: color .15s ease, border-color .15s ease, background .15s ease, box-shadow .15s ease;
}

.identity:hover .identity-mark {
  color: var(--text);
  border-color: var(--text);
  background: var(--surface-soft);
  box-shadow: 0 2px 6px rgba(31, 35, 40, .1);
}

.identity:focus-visible { outline: none; }

.identity:focus-visible .identity-mark {
  color: var(--text);
  border-color: var(--accent-ink);
  box-shadow: 0 0 0 3px rgba(80, 96, 201, .28);
}

/* 아이콘 — 인라인 SVG 와 이미지 파일 어느 쪽이든 같은 크기·비율로 표시 */
.identity-home,
.identity-home-img {
  display: block;
  width: 18px;
  height: 18px;
}

.identity-home-img { object-fit: contain; }

@media (max-width: 680px) {
  .identity-mark { width: 34px; height: 34px; }
  .identity-home,
  .identity-home-img { width: 19px; height: 19px; }
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 12px;
}

.nav a,
.text-link {
  position: relative;
  transition: color .16s ease;
}

.nav a::after,
.text-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -3px;
  height: 1px;
  background: var(--accent);
  transition: right .18s ease;
}

.nav a:hover,
.text-link:hover { color: var(--accent-ink); }
.nav a:hover::after,
.text-link:hover::after { right: 0; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: 58px;
  align-items: center;
  padding: 68px 0 54px;
}

.status-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warm);
  box-shadow: 0 0 0 4px rgba(233, 164, 151, .14);
}

.hero h1 {
  max-width: 780px;
  margin: 14px 0 0;
  font-size: clamp(21px, 5.6vw, 64px);
  line-height: 1.08;
  letter-spacing: -.045em;
  font-weight: 760;
}

.hero-role {
  margin: 18px 0 0;
  color: var(--accent-ink);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.hero-summary {
  max-width: 710px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 26px;
  font-size: 12px;
  font-weight: 700;
}

.hero-panel {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
  padding: 20px;
  background: rgba(255,255,255,.78);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  color: var(--soft);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.focus-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0;
}

.focus-tags span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: #4f5963;
  font-size: 11px;
  font-weight: 650;
}

.focus-tags span:nth-child(1),
.focus-tags span:nth-child(3) {
  border-color: #d7dbff;
  background: var(--accent-soft);
  color: var(--accent-ink);
}

.panel-note {
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.mini-label,
.section-kicker,
.project-kicker {
  margin: 0;
  color: var(--soft);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.panel-note p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.section {
  padding: 50px 0 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 36px;
  align-items: end;
  margin-bottom: 18px;
}

.section-head h2 {
  margin: 7px 0 0;
  font-size: clamp(26px, 3.1vw, 36px);
  line-height: 1.2;
  letter-spacing: -.03em;
}

.section-description {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
}

.compact-head { justify-content: flex-start; }

.project-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.project-primary {
  display: grid;
  grid-template-columns: 250px 1fr;
}

.project-aside {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
  padding: 28px 24px;
  background: linear-gradient(180deg, #fcfcff 0%, #f7f8ff 100%);
  border-right: 1px solid var(--line);
}

.project-aside h3,
.secondary-title h3 {
  margin: 8px 0 0;
  line-height: 1.18;
  letter-spacing: -.025em;
}

.project-aside h3 { font-size: 25px; }
.secondary-title h3 { font-size: 20px; }

.project-subtitle {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.project-meta {
  display: grid;
  gap: 11px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.meta-item span {
  display: block;
  margin-bottom: 2px;
  color: var(--soft);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.meta-item strong {
  font-size: 12px;
  font-weight: 650;
}

.project-body {
  padding: 30px 32px 28px;
}

.project-lead,
.secondary-lead {
  margin: 0;
  color: #4e5760;
  font-size: 14px;
  line-height: 1.78;
}

.project-lead { max-width: 740px; }
.secondary-lead { max-width: 720px; }

.system-flow {
  display: grid;
  grid-template-columns: repeat(9, auto);
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding: 16px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow-x: auto;
}

.flow-node {
  min-width: 104px;
  padding: 11px 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.flow-node.emphasized {
  border-color: #ccd2ff;
  background: var(--accent-soft);
}

.flow-node > span {
  display: block;
  margin-bottom: 4px;
  color: var(--soft);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
}

.flow-node strong {
  display: block;
  font-size: 11px;
}

.flow-node small {
  display: block;
  margin-top: 1px;
  color: var(--soft);
  font-size: 11px;
}

.flow-arrow {
  color: #6b7480;
  font-size: 13px;
}

.signal-list {
  margin-top: 22px;
  border-top: 1px solid var(--line);
}

.signal-row {
  display: grid;
  grid-template-columns: 38px 170px 1fr;
  gap: 0;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.signal-row .num {
  color: var(--accent-ink);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
}

.signal-row strong {
  font-size: 12px;
  font-weight: 720;
}

.signal-row p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

code {
  padding: 1px 5px;
  border: 1px solid #e2e5e9;
  border-radius: 5px;
  background: var(--code-bg);
  color: #414850;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: .92em;
}

.stack-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.stack-line span {
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--muted);
  font-size: 10px;
  background: #fff;
}

.project-secondary {
  display: grid;
  grid-template-columns: 250px 1fr;
  margin-top: 14px;
}

.secondary-title {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px;
  background: #fbfbfc;
  border-right: 1px solid var(--line);
}

.year-chip {
  align-self: flex-start;
  margin-top: 26px;
  padding: 5px 8px;
  border-radius: 7px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
}

.secondary-body {
  padding: 24px 28px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin-top: 18px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.capability-grid > div {
  min-height: 68px;
  padding: 12px 14px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.capability-grid span {
  display: block;
  margin-bottom: 4px;
  color: var(--accent-ink);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.capability-grid strong {
  display: block;
  color: #515a63;
  font-size: 11px;
  font-weight: 650;
  line-height: 1.55;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.focus-item {
  min-height: 146px;
  padding: 18px;
  background: rgba(255,255,255,.74);
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.focus-item:hover {
  transform: translateY(-2px);
  border-color: #cfd4f6;
  box-shadow: 0 10px 24px rgba(31,35,40,.05);
}

.focus-no {
  color: var(--accent-ink);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
}

.focus-item h3 {
  margin: 24px 0 6px;
  font-size: 14px;
  letter-spacing: -.01em;
}

.focus-item p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-top: 56px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}

.footer > div:first-child {
  display: grid;
  gap: 2px;
}

.footer strong {
  color: var(--text);
  font-size: 12px;
}

.footer-links {
  display: flex;
  gap: 18px;
  align-items: center;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 28px; padding: 48px 0 42px; }
  .hero-panel { min-height: auto; }
  .section-head { align-items: flex-start; flex-direction: column; gap: 10px; }
  .project-primary,
  .project-secondary { grid-template-columns: 1fr; }
  .project-aside,
  .secondary-title { border-right: 0; border-bottom: 1px solid var(--line); }
  .project-aside { gap: 24px; }
  .focus-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .shell { width: min(calc(100% - 28px), var(--max)); padding-top: 12px; }
  .topbar { min-height: 50px; }
  .nav { gap: 14px; }
  .nav a[href="#focus"] { display: none; }
  .hero { padding-top: 38px; }
  .hero-summary { font-size: 14px; }
  .project-body,
  .secondary-body { padding: 22px; }
  .project-aside,
  .secondary-title { padding: 22px; }
  .signal-row { grid-template-columns: 30px 1fr; }
  .signal-row strong { grid-column: 2; }
  .signal-row p { grid-column: 2; margin-top: 3px; }
  .capability-grid { grid-template-columns: 1fr; }
  .focus-grid { grid-template-columns: 1fr; }
  .focus-item { min-height: auto; }
  .focus-item h3 { margin-top: 12px; }
  .footer { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-wrap: wrap; }
}

.footer-handle { color: var(--soft); font-size: 12px; }

h1, h2, h3, .hero-summary, .project-card-summary, .section-description { word-break: keep-all; overflow-wrap: break-word; }

.hero-title-line { display: block; white-space: nowrap; }