:root {
  --bg: #ffffff;
  --surface: #f5f5f3;
  --ink: #141414;
  --ink-2: #55585c;
  --line: #e3e3df;
  --accent: #5f7d92;          /* slate blue */
  --accent-ink: #ffffff;
  --danger: #b3261e;
  --ok: #2e6b3f;
  --warn: #8a5a00;
  --radius: 10px;
  --header-h: 64px;
  --shadow: 0 10px 40px rgba(0, 0, 0, .14);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.55 "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
[hidden] { display: none !important; }
.muted { color: var(--ink-2); }
.small { font-size: 13px; }

/* ---------- header ---------- */
.site-header {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 0 clamp(16px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: rgba(255,255,255,.94); backdrop-filter: blur(8px); z-index: 20;
}
.brand { font-weight: 800; letter-spacing: .02em; text-transform: uppercase; text-decoration: none; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.site-header nav { display: flex; align-items: center; gap: clamp(14px, 3vw, 32px); }
.site-header nav a, .linklike {
  font: 500 13px/1 "Archivo", sans-serif; letter-spacing: .18em; text-transform: uppercase; text-decoration: none;
  color: var(--ink-2); padding: 6px 0; border-bottom: 1.5px solid transparent;
}
.site-header nav a:hover, .site-header nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }
.linklike { background: none; border: 0; cursor: pointer; }
.inline { display: inline; margin: 0; }

/* ---------- project portfolio ---------- */
.portfolio-index, .project-detail {
  width: min(100%, 1560px);
  margin: 0 auto;
  padding: clamp(24px, 5vw, 76px) clamp(16px, 4vw, 64px);
}
.portfolio-index h1, .project-description h1 {
  margin: 0 0 20px;
  font-size: clamp(32px, 5vw, 68px);
  line-height: 1.05;
}
.category-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 0 0 28px;
  border-bottom: 1px solid var(--line);
}
.category-menu a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  text-decoration: none;
}
.category-menu a:hover, .category-menu a[aria-current="page"] { border-color: var(--accent); }
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 480px));
  gap: 28px;
}
.project-card { text-decoration: none; }
.project-card:hover h2 { text-decoration: underline; }
.project-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--surface);
}
.project-card h2 { margin: 12px 0 0; font-size: 22px; }
.project-back { display: inline-block; margin-bottom: 22px; }
.project-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(24px, 4vw, 64px);
}
.project-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: var(--surface);
}
.gallery-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-variant-numeric: tabular-nums;
}
.gallery-controls button {
  min-width: 48px;
  min-height: 44px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  font: inherit;
  font-size: 22px;
  cursor: pointer;
}
.gallery-controls button:hover { background: var(--surface); }
.project-description > p:last-child { color: var(--ink-2); max-width: 55ch; }
@media (max-width: 760px) {
  .project-layout { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 14px/1 "Archivo", sans-serif; letter-spacing: .04em;
  background: var(--ink); color: #fff; border: 1px solid var(--ink);
  padding: 11px 16px; border-radius: 999px; cursor: pointer; text-decoration: none;
  transition: background .15s, color .15s, border-color .15s;
}
.btn:hover { background: var(--accent); border-color: var(--accent); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--ink); }
.btn.small { padding: 8px 12px; font-size: 13px; }
.btn.danger { background: transparent; color: var(--danger); border-color: #e9c8c5; }
.btn.danger:hover { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (max-width: 760px) { .btn { padding: 10px 13px; } }


/* ---------- shared ---------- */
.eyebrow { margin: 0; font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--ink-2); }

/* ---------- contact ---------- */
.contact {
  max-width: 1080px; margin: 0 auto; padding: clamp(32px, 7vw, 96px) clamp(16px, 4vw, 48px);
  display: grid; grid-template-columns: minmax(0, 420px) minmax(0, 1fr); gap: clamp(28px, 6vw, 80px); align-items: center;
}
.contact:not(:has(.portrait)) { grid-template-columns: 1fr; max-width: 720px; }
.portrait img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 4px; }
.contact h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.02; margin: 10px 0 8px; font-weight: 800; text-transform: uppercase; letter-spacing: .01em; }
.role { margin: 0; font-size: 13px; letter-spacing: .3em; text-transform: uppercase; color: var(--ink-2); }
.bio { margin: 22px 0 0; max-width: 56ch; color: #333; }
.contact-list { margin: 32px 0 0; display: grid; gap: 18px; border-top: 1px solid var(--line); padding-top: 24px; }
.contact-list div { display: grid; grid-template-columns: 90px 1fr; gap: 12px; align-items: baseline; }
.contact-list dt { font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--ink-2); }
.contact-list dd { margin: 0; font-size: clamp(17px, 2.2vw, 21px); overflow-wrap: anywhere; }
.contact-list a { text-decoration: none; border-bottom: 1px solid var(--line); }
.contact-list a:hover { border-bottom-color: var(--ink); }
@media (max-width: 760px) {
  .contact { grid-template-columns: 1fr; }
  .portrait { max-width: 360px; }
  .contact-list div { grid-template-columns: 1fr; gap: 2px; }
}

.empty { min-height: 60vh; display: grid; place-content: center; text-align: center; padding: 24px; color: var(--ink-2); }

/* ---------- admin ---------- */
body.admin { background: var(--surface); }
.admin-header { background: #fff; }
.admin-main { max-width: 1100px; margin: 0 auto; padding: 24px 16px 80px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; }
.card h1 { margin: 0 0 14px; font-size: 22px; }
.card h2 { margin: 0 0 12px; font-size: 17px; }
.login { max-width: 380px; margin: 10vh auto; display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-size: 14px; font-weight: 500; margin-bottom: 12px; }
input:not([type=checkbox]):not([type=radio]):not([type=file]), textarea {
  font: inherit; font-weight: 400; padding: 10px 12px; border: 1px solid #cfcfca; border-radius: 8px; background: #fff; width: 100%; min-width: 0;
}
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
label.check { display: flex; align-items: center; gap: 8px; }
.flash { padding: 10px 14px; border-radius: 8px; margin: 0 0 14px; font-size: 14px; }
.flash.ok { background: #e7f2ea; color: var(--ok); }
.flash.err { background: #fbeaea; color: var(--danger); }
.google-btn { justify-content: center; background: #fff; color: var(--ink); border-color: #cfcfca; padding: 12px 18px; }
.google-btn:hover { background: var(--surface); border-color: var(--ink); color: var(--ink); }
.g-logo { width: 18px; height: 18px; stroke: none; }
.who { font-size: 13px; color: var(--ink-2); max-width: 22ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dev-banner { background: #fff3dc; color: var(--warn); text-align: center; font-size: 13px; padding: 8px 16px; border-bottom: 1px solid #f0dfb8; }
@media (max-width: 640px) { .who { display: none; } }
.version { margin-top: 40px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 12px; color: var(--ink-2); }
.version code { font: 500 12px/1 ui-monospace, "Cascadia Mono", Consolas, monospace; background: #fff; border: 1px solid var(--line); border-radius: 4px; padding: 2px 6px; color: var(--ink); }

.admin-facts { margin: 14px 0 0; padding-left: 18px; color: var(--ink-2); font-size: 14px; display: grid; gap: 6px; }
.card code, .admin-facts code { font: 500 13px ui-monospace, "Cascadia Mono", Consolas, monospace; }

.project-layout-split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr); }
.project-gallery h2 { margin: 0 0 16px; font-size: 22px; }
@media (max-width: 760px) { .project-layout-split { grid-template-columns: minmax(0, 1fr); } }