/* SimGallery (Sim-Ready Asset Library) — current-robotics.com type pairing on the
   pi.website skeleton: warm cream paper, Inter body, Source Serif 4
   headings, 1px ink borders with hard offset shadows, zero color. */

@font-face {
  font-family: "Source Serif 4";
  font-style: normal; font-weight: 400; font-display: swap;
  src: url("../vendor/fonts/source-serif-4-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal; font-weight: 500; font-display: swap;
  src: url("../vendor/fonts/source-serif-4-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: italic; font-weight: 400; font-display: swap;
  src: url("../vendor/fonts/source-serif-4-latin-400-italic.woff2") format("woff2");
}

:root {
  --paper: #FAF9F4;
  --box: #FDFCF9;
  --ink: #211D16;
  --muted: #8B8478;
  --faint: #E4E0D4;
  --serif: "Source Serif 4", "Georgia", "Songti SC", "STSong", serif;
  /* body/UI stack (var keeps its old name to spare 30 call sites) */
  --mono: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
          system-ui, -apple-system, sans-serif;
  --maxw: 1080px;
  --colw: 620px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.6;
  /* keeps the footer at the bottom while the catalogue is empty */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
/* auto side margins would otherwise stop these from filling the body's width */
.site-header, .hero, .library, .site-footer { width: 100%; }
.library { flex: 1 0 auto; }
a { color: inherit; }
i { font-style: normal; }

.shell { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ------------------------- header (shared style with the landing page) */
.site-header {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 26px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.wordmark {
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.wordmark-logo { width: 24px; height: 24px; display: block; }
.wordmark-sub { font-size: 14px; color: var(--muted); font-weight: 400; margin-left: 6px; padding-left: 12px; border-left: 1px solid var(--faint); }
.header-rule { width: 100%; }
.header-rule hr { border: 0; border-top: 1px solid var(--faint); }
.site-nav { display: flex; gap: 28px; }
.site-nav a {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  opacity: 0.85;
  transition: opacity 0.12s;
}
.site-nav a:hover { opacity: 0.5; }

/* ----------------------------------------------------------------- intro */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 54px 28px 34px;
}
.hero-lede {
  max-width: var(--colw);
  font-size: 14.5px;
  line-height: 1.75;
}
.hero-lede-en {
  max-width: var(--colw);
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}
.stats {
  max-width: var(--colw);
  margin-top: 26px;
  font-size: 13.5px;
}
.stats b { font-weight: 700; }
.stats .sep { color: var(--faint); margin: 0 10px; }

/* --------------------------------------------------------------- library */
.library {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 22px 28px 80px;
}
.library-head h2 {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.library-note { color: var(--muted); font-size: 13px; margin-top: 6px; max-width: var(--colw); }

.controls {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  flex-wrap: wrap;
  margin: 30px 0 24px;
  border-top: 1px solid var(--ink);
  padding-top: 18px;
}
.controls[hidden] { display: none; }
.chips { display: flex; gap: 22px; flex-wrap: wrap; }
.chip {
  font-family: var(--mono);
  font-size: 13.5px;
  background: none;
  border: none;
  padding: 0;
  color: var(--muted);
  cursor: pointer;
}
.chip i { display: none; }
.chip:hover { color: var(--ink); }
.chip.active {
  color: var(--ink);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.search {
  font-family: var(--mono);
  font-size: 13.5px;
  padding: 3px 2px;
  width: 200px;
  border: none;
  border-bottom: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  outline: none;
}
.search::placeholder { color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(228px, 1fr));
  gap: 26px 22px;
}
.card {
  background: var(--box);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease;
}
.card.is-hero { box-shadow: 2px 2px 0 0 var(--ink); }
.card:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 0 var(--ink);
}
.card-media {
  position: relative;
  /* matches the 1200x780 renders the deliverables ship */
  aspect-ratio: 3 / 2;
  border-bottom: 1px solid var(--ink);
  overflow: hidden;
  background: #E8E6DD;
}
.card-media img, .card-media video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  /* contain, not cover: the renders are framed to hold the whole asset
     through its full joint travel — cropping would cut the blades off */
  object-fit: contain;
  display: block;
}
.card-media video { opacity: 0; transition: opacity .2s ease; }
.card:hover .card-media video.ready { opacity: 1; }
.card-tag { display: none; }
.card-body { padding: 10px 12px 12px; }
.card-name { font-size: 13.5px; font-weight: 700; }
.card-name-en { font-size: 12px; color: var(--muted); }
.card-badges { margin-top: 6px; display: flex; gap: 0; flex-wrap: wrap; }
.badge {
  font-size: 11.5px;
  color: var(--muted);
}
.badge + .badge::before { content: "\00a0·\00a0"; }
.badge.dof { color: var(--ink); }
.empty {
  text-align: center; color: var(--muted);
  padding: 70px 0 90px;
  border-top: 1px solid var(--ink);
}
.empty p { max-width: var(--colw); margin: 0 auto; font-size: 13.5px; }
.empty .btn-line { width: auto; margin-top: 22px; }

/* ---------------------------------------------------------------- footer */
.site-footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px 28px 48px;
  border-top: 1px solid var(--ink);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.site-footer .fm { font-family: var(--serif); font-size: 19px; }
.site-footer .copyright { font-size: 12.5px; color: var(--muted); }

/* --------------------------------------------------------------- overlay */
.overlay { position: fixed; inset: 0; z-index: 50; }
.overlay-backdrop {
  position: absolute; inset: 0;
  background: rgba(5, 5, 5, 0.35);
}
.sheet {
  position: absolute;
  inset: 4vh 4vw;
  background: var(--paper);
  border: 1px solid var(--ink);
  box-shadow: 4px 4px 0 0 var(--ink);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  overflow: hidden;
}
.sheet-close {
  position: absolute;
  top: 10px; right: 12px;
  z-index: 5;
  width: 32px; height: 32px;
  border: 1px solid var(--ink);
  background: var(--box);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
}
.sheet-close:hover { box-shadow: 2px 2px 0 0 var(--ink); }
.sheet-viewer {
  position: relative;
  background: var(--paper);
  display: flex;
  flex-direction: column;
}
/* ---------------------------- detail sheet: Blender-rendered clips */
.stage {
  flex: 1;
  min-height: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--paper);
}
/* max-* rather than width/height 100%: a square clip in a wider stage would
   otherwise be sized by the width and have its bottom cropped away */
.clip {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}
.clip-frame {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: #030303;
}
.clip-frame[hidden], .clip[hidden] { display: none; }
.viewer-tabs {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 6;
  display: flex; gap: 6px; flex-wrap: wrap;
}
.vtab {
  font-family: var(--mono);
  font-size: 12px;
  padding: 5px 12px;
  border: 1px solid var(--ink);
  background: var(--box);
  color: var(--ink);
  cursor: pointer;
}
.vtab:hover { box-shadow: 2px 2px 0 0 var(--ink); }
.vtab.active { background: var(--ink); color: var(--paper); }

.viewer-hint {
  position: absolute;
  top: 12px; left: 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.sheet-meta {
  border-left: 1px solid var(--ink);
  background: var(--box);
  padding: 28px 24px;
  overflow-y: auto;
  font-size: 13px;
}
.meta-kind {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.meta-name { font-family: var(--serif); font-size: 27px; font-weight: 500; margin-top: 8px; line-height: 1.25; }
.meta-name-en { color: var(--muted); font-size: 13px; margin-top: 2px; }
.meta-section { margin-top: 22px; border-top: 1px solid var(--faint); padding-top: 14px; }
.meta-section h4 {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin-bottom: 8px;
}
.meta-kv { display: flex; justify-content: space-between; gap: 10px; font-size: 12.5px; padding: 2px 0; }
.meta-kv .k { color: var(--muted); }
.meta-kv .v { color: var(--ink); text-align: right; }
.joint-row { font-size: 12.5px; color: var(--muted); padding: 2px 0; display: flex; justify-content: space-between; gap: 8px; }
.joint-row .jt { color: var(--ink); flex: none; }
.dl {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 12.5px;
  padding: 7px 14px;
  border: 1px solid var(--ink);
  background: var(--box);
  color: var(--ink);
  text-decoration: none;
}
.dl:hover { box-shadow: 2px 2px 0 0 var(--ink); }
.meta-note { font-size: 11.5px; color: var(--muted); margin-top: 12px; line-height: 1.6; }

@media (max-width: 900px) {
  .sheet { inset: 2vh 2vw; grid-template-columns: 1fr; grid-template-rows: minmax(0,1fr) auto; }
  .sheet-meta { border-left: none; border-top: 1px solid var(--ink); max-height: 40vh; }
}

/* ------------------------------------------------------------------ cart */
.cart-overlay { position: fixed; inset: 0; z-index: 60; }
.cart-backdrop { position: absolute; inset: 0; background: rgba(5,5,5,0.35); }
.cart {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: min(400px, 92vw);
  background: var(--paper);
  border-left: 1px solid var(--ink);
  display: flex;
  flex-direction: column;
}
.cart-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid var(--ink);
}
.cart-head h3 { font-family: var(--mono); font-size: 14px; font-weight: 700; }
.cart-close { position: static; }
.cart-items { flex: 1; overflow-y: auto; padding: 8px 20px; }
.cart-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--faint);
  font-size: 13px;
}
.cart-item .ci-name b { font-weight: 700; }
.cart-item .ci-name span { color: var(--muted); font-size: 12px; margin-left: 6px; }
.cart-item .ci-meta { color: var(--muted); font-size: 11.5px; }
.ci-remove {
  border: 1px solid var(--ink);
  background: var(--box);
  font-family: var(--mono);
  width: 26px; height: 26px;
  cursor: pointer;
  flex: none;
}
.ci-remove:hover { box-shadow: 2px 2px 0 0 var(--ink); }
.cart-empty { color: var(--muted); padding: 30px 0; font-size: 13px; }
.cart-foot { border-top: 1px solid var(--ink); padding: 16px 20px 20px; }
.cart-note { font-size: 11.5px; color: var(--muted); line-height: 1.6; }
.cart-checkout {
  margin-top: 12px;
  width: 100%;
  font-family: var(--mono);
  font-size: 13.5px;
  font-weight: 700;
  padding: 11px 0;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
}
.cart-checkout:hover { box-shadow: 3px 3px 0 0 var(--ink); background: #201E18; }
.cart-checkout:disabled { opacity: .45; cursor: default; box-shadow: none; }
.add-cart {
  display: inline-block;
  margin-top: 8px;
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 12.5px;
  padding: 7px 14px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
}
.add-cart:hover { box-shadow: 2px 2px 0 0 var(--ink); }
.add-cart.in-cart { background: var(--box); color: var(--muted); }

/* ------------------------------------------- accounts / payment / requests */
.modal-overlay { position: fixed; inset: 0; z-index: 70; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(5,5,5,0.35); }
.modal {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: min(440px, 92vw);
  max-height: 88vh; overflow: auto;
  background: var(--paper);
  border: 1px solid var(--ink);
  box-shadow: 7px 7px 0 var(--ink);
  padding: 28px 26px 26px;
}
.modal h3 { font-family: var(--serif); font-weight: 500; font-size: 20px; }
.modal-sub { color: var(--muted); font-size: 12.5px; margin: 6px 0 18px; }
.sandbox-tag { color: var(--ink); background: var(--box); border: 1px dashed var(--ink);
  padding: 6px 9px; letter-spacing: .02em; }
.modal form label { display: block; margin-bottom: 14px; font-size: 12.5px; color: var(--muted); }
.modal form label span { display: block; margin-bottom: 5px; letter-spacing: .04em; }
.modal-wide { width: min(640px, calc(100vw - 32px)); }
.pay-row label.narrow { flex: 0 0 96px; }
.beta-banner { max-width: var(--colw); margin-top: 14px; font-size: 13.5px; line-height: 1.55; padding: 10px 14px;
  border: 1px solid var(--ink); border-radius: 6px; background: var(--box, #F3F1E8); }
.beta-tag { font-family: var(--serif); font-size: 15px; }
.modal form .field { display: block; margin-bottom: 14px; font-size: 12.5px; color: var(--muted); }
.modal form .field > span { display: block; margin-bottom: 7px; letter-spacing: .04em; }
.chips-row { display: flex; flex-wrap: wrap; gap: 6px; }
.chips-row button {
  font: inherit; font-size: 13px; color: var(--ink); background: transparent; cursor: pointer;
  border: 1px solid var(--ink); border-radius: 999px; padding: 6px 12px; line-height: 1.2; }
.chips-row button:hover { box-shadow: 2px 2px 0 var(--ink); }
.chips-row button.on { background: var(--ink); color: var(--paper, #FAF9F4); }
.modal input, .modal textarea {
  width: 100%; font: inherit; color: var(--ink);
  background: var(--box); border: 1px solid var(--ink);
  padding: 9px 11px; outline: none;
}
.modal input:focus, .modal textarea:focus { box-shadow: 3px 3px 0 var(--ink); }
.pay-row { display: flex; gap: 12px; }
.pay-row label { flex: 1; }
.btn-solid {
  width: 100%; margin-top: 4px; cursor: pointer;
  font: inherit; padding: 12px 16px;
  background: var(--ink); color: var(--paper);
  border: 1px solid var(--ink);
  box-shadow: 4px 4px 0 var(--faint);
}
.btn-solid:disabled { opacity: .55; cursor: default; }
.btn-line {
  width: 100%; margin-top: 18px; cursor: pointer;
  font: inherit; padding: 10px 16px;
  background: var(--box); color: var(--ink); border: 1px solid var(--ink);
}
.btn-line:hover, .btn-solid:not(:disabled):hover { box-shadow: 2px 2px 0 var(--ink); }
.form-error { color: #8B1D1D; font-size: 12.5px; margin: -4px 0 12px; }
.modal label.check-row {
  display: flex; align-items: flex-start; gap: 9px;
  font-size: 12.5px; color: var(--ink); line-height: 1.55;
  margin: 4px 0 14px; cursor: pointer;
}
.check-row input[type="checkbox"] {
  width: auto; margin-top: 2px; accent-color: var(--ink); cursor: pointer;
}
.lic-terms { margin: 16px 0 14px; padding-left: 18px; }
.lic-terms li { font-size: 13px; line-height: 1.65; margin-bottom: 9px; }
.modal-switch { margin-top: 16px; font-size: 12.5px; color: var(--muted); }
.modal-switch a { margin-left: 6px; }

.pay-summary { border: 1px solid var(--ink); background: var(--box);
  padding: 12px 14px; margin-bottom: 18px; }
.pay-line { display: flex; justify-content: space-between; padding: 3px 0; font-size: 13px; }
.pay-line-total { border-top: 1px solid var(--faint); margin-top: 7px; padding-top: 8px; }

.cart-total { display: flex; justify-content: space-between; align-items: baseline;
  padding: 10px 0 4px; font-size: 14px; }
.cart-total b { font-family: var(--serif); font-size: 19px; }
.ci-right { display: flex; align-items: center; gap: 10px; }
.ci-price { font-size: 12.5px; color: var(--muted); }
.price-tag { font-family: var(--serif); font-size: 15px; }

.acct-sub { margin: 18px 0 10px; font-size: 12px; letter-spacing: .1em; color: var(--muted); }
.acct-order { border: 1px solid var(--faint); background: var(--box);
  padding: 10px 12px; margin-bottom: 10px; }
.acct-order-head { color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.acct-item { display: flex; justify-content: space-between; gap: 12px;
  padding: 3px 0; font-size: 13px; }
.dl-mini { white-space: nowrap; }

#toast {
  position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 16px);
  background: var(--ink); color: var(--paper);
  padding: 11px 18px; font-size: 13px; z-index: 90;
  opacity: 0; pointer-events: none; transition: opacity .18s, transform .18s;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }