:root {
  --navy: #17324d;
  --navy-2: #0f2336;
  --teal: #1f6f78;
  --teal-light: #dceeef;
  --ink: #18222b;
  --muted: #5f6b76;
  --line: #dfe5e9;
  --surface: #f3f5f7;
  --white: #ffffff;
  --max: 1180px;
  --shadow: 0 18px 45px rgba(23, 50, 77, 0.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}
body.menu-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; }
.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 1000;
  padding: .75rem 1rem;
  background: var(--navy);
  color: white;
  border-radius: .5rem;
}
.skip-link:focus { top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(223,229,233,.85);
}
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  min-height: 74px;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.brand {
  text-decoration: none;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--navy);
  white-space: nowrap;
}
.site-nav { display: flex; gap: .35rem; align-items: center; }
.site-nav a {
  text-decoration: none;
  color: #33424f;
  font-weight: 650;
  padding: .6rem .8rem;
  border-radius: .55rem;
}
.site-nav a:hover, .site-nav a:focus-visible, .site-nav a[aria-current="page"] {
  color: var(--navy);
  background: var(--teal-light);
  outline: none;
}
.menu-button {
  display: none;
  border: 1px solid var(--line);
  background: white;
  border-radius: .6rem;
  padding: .55rem .7rem;
  font: inherit;
  font-weight: 700;
  color: var(--navy);
}

main { display: block; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }
.eyebrow {
  margin: 0 0 .8rem;
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--teal);
  font-weight: 800;
}
.hero {
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 18%, rgba(31,111,120,.20), transparent 25%),
    radial-gradient(circle at 76% 74%, rgba(23,50,77,.08), transparent 35%),
    linear-gradient(180deg, #fff 0%, #f7fafb 100%);
}
.hero-inner {
  min-height: 690px;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  align-items: center;
  gap: 4rem;
  padding-top: 5.2rem;
  padding-bottom: 5.2rem;
}
h1, h2, h3 { color: var(--navy-2); line-height: 1.12; }
h1 {
  margin: 0;
  max-width: 840px;
  font-size: clamp(3rem, 7vw, 6.5rem);
  letter-spacing: -.055em;
}
.hero-copy > p:not(.eyebrow) {
  max-width: 780px;
  margin: 1.45rem 0 0;
  color: #44525e;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: .78rem 1.15rem;
  border-radius: .65rem;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 800;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: var(--navy); }
.button-primary:hover, .button-primary:focus-visible { background: var(--teal); outline: none; }
.button-secondary { color: var(--navy); border-color: #aebac3; background: white; }
.button-secondary:hover, .button-secondary:focus-visible { border-color: var(--teal); outline: none; }

.hero-visual {
  position: relative;
  min-height: 430px;
  display: grid;
  place-items: center;
}
.system-orbit {
  width: min(420px, 90vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(31,111,120,.25);
  position: relative;
  display: grid;
  place-items: center;
  box-shadow: inset 0 0 0 42px rgba(220,238,239,.35);
}
.system-orbit::before,
.system-orbit::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px dashed rgba(23,50,77,.25);
}
.system-orbit::after { inset: 28%; border-style: solid; }
.orbit-core {
  position: relative;
  z-index: 2;
  width: 155px;
  height: 155px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1rem;
  color: white;
  background: linear-gradient(145deg, var(--navy), var(--teal));
  box-shadow: var(--shadow);
  font-weight: 850;
}
.orbit-node {
  position: absolute;
  z-index: 3;
  max-width: 135px;
  padding: .55rem .7rem;
  background: white;
  border: 1px solid var(--line);
  border-radius: .65rem;
  box-shadow: 0 8px 24px rgba(23,50,77,.08);
  color: var(--navy);
  font-size: .82rem;
  font-weight: 800;
  text-align: center;
}
.node-1 { top: 4%; left: 50%; transform: translateX(-50%); }
.node-2 { right: -4%; top: 38%; }
.node-3 { bottom: 5%; left: 52%; transform: translateX(-50%); }
.node-4 { left: -5%; top: 40%; }

.section { padding: 6rem 0; }
.section-alt { background: var(--surface); }
.section-heading {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 3rem;
  align-items: end;
  margin-bottom: 2.5rem;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 4rem);
  letter-spacing: -.035em;
}
.section-heading p { margin: 0; color: var(--muted); font-size: 1.08rem; }

.capability-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}
.capability {
  padding: 1.5rem;
  min-height: 230px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 1rem;
}
.capability .number { color: var(--teal); font-size: .8rem; font-weight: 850; letter-spacing: .12em; }
.capability h3 { margin: 1rem 0 .7rem; font-size: 1.1rem; }
.capability p { margin: 0; color: var(--muted); font-size: .96rem; }

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}
.project-card {
  min-height: 430px;
  overflow: hidden;
  background: white;
  border: 1px solid var(--line);
  border-radius: 1.1rem;
  box-shadow: 0 10px 30px rgba(23,50,77,.05);
  display: flex;
  flex-direction: column;
}
.project-cover {
  min-height: 205px;
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  color: white;
  background: linear-gradient(145deg, var(--navy), var(--teal));
}
.project-cover::before,
.project-cover::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 50%;
}
.project-cover::before { width: 260px; height: 260px; right: -70px; top: -90px; }
.project-cover::after { width: 170px; height: 170px; left: -50px; bottom: -70px; }
.project-symbol {
  position: relative;
  z-index: 1;
  width: 104px;
  height: 104px;
  border-radius: 1.35rem;
  border: 1px solid rgba(255,255,255,.52);
  background: rgba(255,255,255,.12);
  backdrop-filter: blur(5px);
  display: grid;
  place-items: center;
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -.05em;
}
.cover-retail { background: linear-gradient(145deg, #31445a, #6a7c64); }
.cover-synthesis { background: linear-gradient(145deg, #17324d, #476f91); }
.cover-lifeline { background: linear-gradient(145deg, #23475c, #1f6f78); }
.cover-unseen { background: linear-gradient(145deg, #202c3c, #486b70); }
.cover-ledger { background: linear-gradient(145deg, #3b4856, #6f7861); }
.project-body { padding: 1.35rem 1.35rem 1.5rem; display: flex; flex-direction: column; flex: 1; }
.badge {
  align-self: flex-start;
  display: inline-flex;
  padding: .34rem .58rem;
  background: var(--teal-light);
  color: #174f56;
  border-radius: 999px;
  font-size: .74rem;
  font-weight: 850;
  letter-spacing: .025em;
}
.project-card h3 { margin: 1rem 0 .65rem; font-size: 1.35rem; }
.project-card p { margin: 0; color: var(--muted); }
.project-link { margin-top: auto; padding-top: 1.2rem; color: var(--teal); font-weight: 850; text-decoration: none; }
.project-link:hover, .project-link:focus-visible { text-decoration: underline; outline: none; }

.connection-map {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  position: relative;
}
.connection-map::before {
  content: "";
  position: absolute;
  top: 46px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--teal-light), var(--teal), var(--navy), var(--teal-light));
}
.map-stage { position: relative; z-index: 1; }
.map-index {
  width: 92px;
  height: 92px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: white;
  border: 3px solid var(--teal-light);
  color: var(--navy);
  font-weight: 900;
  box-shadow: 0 7px 20px rgba(23,50,77,.08);
}
.map-stage h3 { text-align: center; font-size: 1.05rem; }
.map-stage ul { margin: .75rem 0 0; padding-left: 1.2rem; color: var(--muted); }

.page-hero { background: var(--surface); border-bottom: 1px solid var(--line); }
.page-hero .container { padding-top: 5rem; padding-bottom: 4.5rem; }
.page-hero h1 { font-size: clamp(2.8rem, 6vw, 5.7rem); max-width: 920px; }
.page-hero p { max-width: 780px; margin: 1.3rem 0 0; color: var(--muted); font-size: 1.15rem; }

.filters { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2rem; }
.filter-button {
  border: 1px solid var(--line);
  background: white;
  color: var(--navy);
  border-radius: 999px;
  padding: .58rem .85rem;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}
.filter-button:hover, .filter-button:focus-visible, .filter-button.active { background: var(--navy); color: white; outline: none; }
.project-card[hidden] { display: none; }

.prose { max-width: 840px; }
.prose h2 { margin-top: 2.6rem; font-size: 2rem; }
.prose h3 { margin-top: 2rem; font-size: 1.3rem; }
.prose p, .prose li { color: #4d5a65; font-size: 1.04rem; }
.prose blockquote {
  margin: 2rem 0;
  padding: 1.2rem 1.4rem;
  border-left: 4px solid var(--teal);
  background: var(--surface);
  color: var(--navy);
  font-size: 1.15rem;
}
.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.info-panel {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 1rem;
  padding: 1.5rem;
}
.info-panel h2, .info-panel h3 { margin-top: 0; }
.tag-list { display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; list-style: none; }
.tag-list li { background: white; border: 1px solid var(--line); border-radius: 999px; padding: .4rem .65rem; font-size: .88rem; color: var(--navy); }

.project-detail-hero {
  background: linear-gradient(145deg, var(--navy-2), var(--teal));
  color: white;
}
.project-detail-hero .container { padding-top: 5rem; padding-bottom: 4rem; }
.project-detail-hero h1 { color: white; font-size: clamp(2.5rem, 6vw, 5.2rem); max-width: 1000px; }
.project-detail-hero p { max-width: 820px; color: rgba(255,255,255,.83); font-size: 1.15rem; }
.project-detail-hero .badge { margin-bottom: 1rem; background: rgba(255,255,255,.16); color: white; border: 1px solid rgba(255,255,255,.26); }
.detail-grid { display: grid; grid-template-columns: 1.4fr .6fr; gap: 3rem; }
.detail-aside { position: sticky; top: 96px; align-self: start; }
.detail-aside .info-panel { background: white; box-shadow: var(--shadow); }

.resume-card {
  max-width: 860px;
  padding: 2rem;
  background: white;
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}
.resume-frame { width: 100%; height: 780px; border: 1px solid var(--line); border-radius: .65rem; margin-top: 1.5rem; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.contact-card { padding: 1.6rem; border: 1px solid var(--line); border-radius: 1rem; background: white; }
.contact-card h2 { margin-top: 0; }

.site-footer { border-top: 1px solid var(--line); background: #fafbfc; }
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.2rem 1.25rem;
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  color: var(--muted);
  font-size: .9rem;
}
.footer-inner a { color: var(--navy); }

:focus-visible { outline: 3px solid rgba(31,111,120,.38); outline-offset: 3px; }

@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 1rem; min-height: auto; }
  .hero-visual { min-height: 390px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .connection-map { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
  .connection-map::before { display: none; }
  .detail-grid { grid-template-columns: 1fr; }
  .detail-aside { position: static; }
}

@media (max-width: 720px) {
  .menu-button { display: inline-flex; }
  .site-nav {
    display: none;
    position: fixed;
    inset: 74px 0 auto 0;
    padding: 1rem 1.25rem 1.4rem;
    background: white;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: .85rem 1rem; }
  .hero-inner { padding-top: 4rem; padding-bottom: 4rem; }
  .hero-visual { min-height: 340px; }
  .system-orbit { width: 330px; }
  .orbit-node { font-size: .7rem; max-width: 105px; }
  .section { padding: 4.5rem 0; }
  .section-heading { grid-template-columns: 1fr; gap: 1rem; }
  .capability-grid, .project-grid, .connection-map, .two-column, .contact-grid { grid-template-columns: 1fr; }
  .capability { min-height: auto; }
  .footer-inner { flex-direction: column; }
  .resume-frame { height: 560px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
}