:root {
  --bg: #f7f7f7;
  --panel: #ffffff;
  --text: #111111;
  --muted: rgba(17, 17, 17, 0.66);
  --faint: rgba(17, 17, 17, 0.14);
  --rule: rgba(17, 17, 17, 0.12);
  --shadow: 0 8px 24px rgba(17, 17, 17, 0.06);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  --radius: 16px;
  --max: 1100px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --t: 220ms;
  --focus: rgba(17, 17, 17, 0.28);
  --grid: rgba(17, 17, 17, 0.03);
}

[data-theme="dark"] {
  --bg: #0f0f10;
  --panel: #141416;
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --faint: rgba(255, 255, 255, 0.16);
  --rule: rgba(255, 255, 255, 0.12);
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
  --focus: rgba(255, 255, 255, 0.28);
  --grid: rgba(255, 255, 255, 0.03);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  letter-spacing: 0;
  line-height: 1.55;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}
a { color: inherit; }
.wrap { margin: 0 auto; max-width: var(--max); padding: 28px 22px 80px; }
.topbar {
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar-inner {
  align-items: center;
  display: flex;
  gap: 5px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  padding: 14px 0px;
}
.brand { display: flex; flex-direction: column; gap: 2px; min-width: 220px; text-decoration: none; }
.brand .name { font-size: 14px; font-weight: 650; letter-spacing: 0; }
.brand .role, .mono { color: var(--muted); font-family: var(--mono); font-size: 12px; }
nav { align-items: center; display: flex; flex-wrap: wrap; gap: 5px; justify-content: center; }
.navlink {
  border-radius: 10px;
  color: var(--muted);
  font-size: 13px;
  padding: 8px;
  position: relative;
  text-decoration: none;
}
.navlink:hover, .navlink[aria-current="true"] { color: var(--text); }
.navlink[aria-current="true"]::after {
  background: var(--text);
  bottom: 4px;
  content: "";
  height: 1px;
  left: 8px;
  opacity: .75;
  position: absolute;
  right: 8px;
}
.actions { align-items: center; display: flex; gap: 10px; justify-content: flex-end; min-width: 220px; }
.btn, .toggle {
  align-items: center;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  font-family: inherit;
  font-size: 13px;
  gap: 8px;
  padding: 9px 12px;
  text-decoration: none;
}
.btn:hover, .toggle:hover { border-color: var(--focus); transform: translateY(-1px); }
.btn.primary { background: var(--text); border-color: transparent; color: var(--bg); }
.toggle span { font-family: var(--mono); font-size: 12px; }
.toggle .slash { opacity: .55; }
section { border-bottom: 1px solid var(--rule); padding: 70px 0 10px; scroll-margin-top: 82px; }
.section-head { align-items: baseline; display: flex; gap: 16px; justify-content: space-between; margin-bottom: 22px; }
.kicker { color: var(--muted); font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.kicker span { color: var(--text); opacity: .8; }
.subnote { color: var(--muted); font-family: var(--mono); font-size: 12px; text-align: right; white-space: nowrap; }
.hero { overflow: hidden; padding-top: 44px; position: relative; }
.grid {
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 56px 56px;
  inset: 0;
  mask-image: radial-gradient(circle at 30% 20%, rgba(0,0,0,.9), transparent 60%);
  pointer-events: none;
  position: absolute;
}
.hero-inner { align-items: start; display: grid; gap: 28px; grid-template-columns: 1.2fr .8fr; padding: 56px 0 28px; position: relative; }
.headline { font-size: clamp(34px, 5.2vw, 62px); font-weight: 700; letter-spacing: 0; line-height: 1.05; margin: 0 0 12px; }
.lede { color: var(--muted); font-size: 16px; margin: 0 0 20px; max-width: 64ch; }
.micro, .codebox {
  background: color-mix(in srgb, var(--panel) 86%, transparent);
  border: 1px solid var(--rule);
  border-radius: 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  padding: 10px 12px;
  white-space: pre-wrap;
}
.micro { display: inline-flex; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.hero-card, .box, .service, .card, .metric, .rolebox, .layer, .approach, .mblock {
  background: var(--panel);
  border: 10px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-card { padding: 18px; }
.portrait-wrapper { display: flex; justify-content: center; }
.portrait {
  aspect-ratio: 1;
  border: 1px solid var(--rule);
  clip-path: polygon(50% 4%, 88% 27%, 88% 73%, 50% 96%, 12% 73%, 12% 27%);
  max-width: 330px;
  object-fit: cover;
  width: 100%;
}
.portrait-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.pill, .tag {
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  padding: 7px 9px;
}
.metrics, .cards, .services, .layers, .project-grid { display: grid; gap: 14px; }
.metrics { grid-template-columns: repeat(4, 1fr); }
.services, .layers { grid-template-columns: repeat(3, 1fr); }
.cards { grid-template-columns: repeat(3, 1fr); }
.project-grid { grid-template-columns: repeat(2, 1fr); }
.metric, .service, .card, .layer, .approach, .box, .mblock { padding: 16px; }
.metric .num { font-size: 34px; font-weight: 720; letter-spacing: 0; line-height: 1; }
.metric .desc, .service p, .card p, .layer p, .box p, .mblock p, .rolebox p { color: var(--muted); font-size: 13px;margin-left: 8px; }
.service h3, .card h3, .box h3, .mblock h3, .rolebox h3 { font-size: 15px; letter-spacing: 0; margin: 12px 0 8px; }
.service { display: flex; flex-direction: column; gap: 14px; overflow: hidden; }
.service-image {
  aspect-ratio: 16 / 9;
  border: 1px solid var(--rule);
  border-radius: 12px;
  filter: grayscale(1);
  object-fit: cover;
  opacity: .78;
  width: 100%;
}
.card { --card-image: linear-gradient(var(--panel), var(--panel)); color: var(--text); display: flex; flex-direction: column; min-height: 210px; overflow: hidden; position: relative; text-decoration: none; transition: transform var(--t) var(--ease), border-color var(--t) var(--ease); }
.card > * { position: relative; z-index: 1; }
.image-aware-card::before {
  background-image: var(--card-image);
  background-position: center;
  background-size: cover;
  content: "";
  filter: grayscale(1);
  inset: 0;
  opacity: .08;
  position: absolute;
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease);
}
.image-aware-card:hover::before { opacity: .16; transform: scale(1.02); }
.project-card {
  --project-image: linear-gradient(var(--panel), var(--panel));
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--text);
  display: flex;
  min-height: 270px;
  overflow: hidden;
  position: relative;
  text-decoration: none;
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease);
}
.project-card::before {
  background: linear-gradient(color-mix(in srgb, var(--panel) 62%, transparent), color-mix(in srgb, var(--panel) 90%, transparent)), var(--project-image);
  background-position: center;
  background-size: cover;
  content: "";
  inset: 0;
  opacity: .62;
  position: absolute;
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease);
}
.project-card:hover::before { opacity: .82; transform: scale(1.02); }
.project-card-content {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 18px;
  position: relative;
  z-index: 1;
}
.card:hover, .service:hover, .project-card:hover { border-color: var(--focus); transform: translateY(-2px); }
.title { align-items: flex-start; display: flex; gap: 12px; justify-content: space-between; }
.stack { color: var(--muted); display: flex; flex-wrap: wrap; font-family: var(--mono); font-size: 12px; gap: 10px; justify-content: space-between; margin-top: auto; }
.stack .impact { color: var(--text); opacity: .85; }
.timeline { display: grid; gap: 14px; grid-template-columns: 180px 1fr; }
.time { color: var(--muted); font-family: var(--mono); font-size: 12px; padding-top: 18px; }
.rolebox .meta { color: var(--muted); font-family: var(--mono); font-size: 12px; margin-bottom: 8px; margin-left: 8px; }
.layer ul, .approach ul, .mblock ul { color: var(--muted); font-size: 13px; margin: 0; padding-left: 18px; }
.lname { color: var(--muted); font-family: var(--mono); font-size: 12px; margin-bottom: 10px; }
.contact { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
.inline-form { display: flex; gap: 10px; margin-top: 12px; }
input, textarea {
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  border: 1px solid var(--rule);
  border-radius: 12px;
  color: var(--text);
  font: inherit;
  padding: 10px 12px;
  width: 100%;
}
textarea { resize: vertical; }
.success { color: var(--text); font-family: var(--mono); }
footer { color: var(--muted); font-family: var(--mono); font-size: 12px; padding: 24px 0 0; }
.page { padding-top: 80px; }
.modal-grid { display: grid; gap: 14px; grid-template-columns: repeat(2, 1fr); margin-top: 24px; }
.static-detail { margin-bottom: 16px; }
.article-body { background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius); color: var(--muted); padding: 18px; white-space: pre-wrap; }
.html-zone { white-space: normal; }
.html-zone img { border: 1px solid var(--rule); border-radius: 12px; display: block; height: auto; margin: 18px 0; max-width: 100%; }
.html-zone pre { background: color-mix(in srgb, var(--text) 5%, transparent); border: 1px solid var(--rule); border-radius: 12px; overflow: auto; padding: 14px; }
.detail-image {
  aspect-ratio: 16 / 9;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: block;
  margin: 22px 0;
  object-fit: cover;
  width: 100%;
}
.reveal { opacity: 0; transform: translateY(10px); transition: opacity 520ms var(--ease), transform 520ms var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

.admin-body { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.admin-sidebar { background: var(--panel); border-right: 1px solid var(--rule); display: flex; flex-direction: column; gap: 22px; padding: 22px; }
.admin-brand { font-weight: 750; text-decoration: none; }
.admin-sidebar nav { align-items: stretch; flex-direction: column; gap: 4px; }
.admin-sidebar nav a { border-radius: 10px; color: var(--muted); padding: 9px 10px; text-decoration: none; }
.admin-sidebar nav a:hover { background: var(--bg); color: var(--text); }
.admin-main { padding: 32px; }
.admin-head { align-items: center; display: flex; justify-content: space-between; margin-bottom: 22px; }
.admin-head h1, .login-card h1 { letter-spacing: 0; margin: 6px 0 0; }
.quick-actions, .row-actions { align-items: center; display: flex; flex-wrap: wrap; gap: 8px; }
.admin-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin-top: 24px; }
.admin-tile { background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius); display: flex; justify-content: space-between; padding: 16px; text-decoration: none; }
.admin-table { background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; }
.admin-row { align-items: center; border-top: 1px solid var(--rule); display: grid; gap: 12px; grid-template-columns: 1fr 90px 70px 280px; padding: 12px; }
.admin-row:first-child { border-top: 0; }
.admin-row-head { color: var(--muted); font-family: var(--mono); font-size: 12px; text-transform: uppercase; }
.admin-form, .login-card { background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius); display: grid; gap: 14px; padding: 18px; }
.admin-form label, .login-card label { color: var(--muted); display: grid; font-family: var(--mono); font-size: 12px; gap: 6px; text-transform: uppercase; }
.admin-image-preview { border: 1px solid var(--rule); border-radius: 12px; height: 120px; object-fit: cover; width: min(260px, 100%); }
.check-row { align-items: center; display: flex !important; flex-direction: row; }
.check-row input { width: auto; }
.login-body { display: grid; min-height: 100vh; place-items: center; }
.login-card { max-width: 420px; width: min(420px, calc(100vw - 32px)); }
.error { color: #9f1d1d; }
.empty-admin { color: var(--muted); padding: 16px; }

@media (max-width: 900px) {
  .topbar-inner { align-items: flex-start; flex-wrap: wrap; }
  .brand, .actions { min-width: unset; }
  nav { justify-content: flex-start; order: 3; width: 100%; }
  .hero-inner, .metrics, .cards, .services, .layers, .project-grid, .contact, .modal-grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .subnote { text-align: left; white-space: normal; }
  .admin-body { grid-template-columns: 1fr; }
  .admin-sidebar { border-bottom: 1px solid var(--rule); border-right: 0; }
  .admin-row { grid-template-columns: 1fr; }
}