/* =========================================================================
   SpikedSite — shell.css
   Gallery flip-book UI only. Uses the full Claude palette (the shell chrome
   is the SpikedSite brand; demos bring their own accents).
   ========================================================================= */

.shell{--accent:var(--clay);--accent-deep:var(--clay-deep);min-height:100vh;display:flex;flex-direction:column}

/* ---------------- top bar ---------------- */
.shell-bar{
  position:sticky;top:0;z-index:40;
  display:flex;align-items:center;gap:1rem;flex-wrap:wrap;
  padding:.7rem clamp(1rem,3vw,2rem);
  background:color-mix(in oklab,var(--paper) 85%,transparent);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--hairline);
}
.brand{display:inline-flex;align-items:center;gap:.6rem;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
.brand .spark{width:26px;height:26px;flex:0 0 auto;color:var(--clay)}
.brand b{font-size:var(--step-0)}
.brand .sub{font-family:var(--font-mono);font-size:var(--step--2);color:var(--muted);letter-spacing:.04em}

.bar-spacer{flex:1 1 auto}

.search-wrap{position:relative;display:flex;align-items:center;min-width:min(34vw,260px)}
.search-wrap svg{position:absolute;left:.7rem;width:16px;height:16px;color:var(--muted);pointer-events:none}
#search{
  width:100%;padding:.55rem .7rem .55rem 2.1rem;border-radius:var(--r-pill);
  background:var(--surface);border:1.5px solid var(--hairline);color:var(--ink);font-size:var(--step--1);
}
#search:focus{outline:none;border-color:var(--clay);box-shadow:0 0 0 3px color-mix(in oklab,var(--clay) 22%,transparent)}
.search-kbd{position:absolute;right:.55rem;font-family:var(--font-mono);font-size:var(--step--2);
  color:var(--cloud);border:1px solid var(--hairline);border-radius:4px;padding:.05rem .35rem;pointer-events:none}

.bar-btn{
  display:inline-flex;align-items:center;gap:.45rem;
  padding:.5rem .8rem;border-radius:var(--r-pill);
  border:1.5px solid var(--hairline);background:var(--surface);color:var(--ink);
  font-size:var(--step--1);font-weight:600;transition:border-color .15s var(--ease),background .15s var(--ease),color .15s var(--ease);
}
.bar-btn:hover{border-color:var(--clay);color:var(--clay-deep)}
.bar-btn svg{width:16px;height:16px}
.bar-btn .count-badge{font-family:var(--font-mono);font-size:var(--step--2);
  background:var(--clay);color:#fff;border-radius:var(--r-pill);min-width:1.3em;text-align:center;padding:.05rem .35rem}
.bar-btn.is-on{background:var(--clay);border-color:var(--clay);color:#fff}
.bar-btn.is-on .count-badge{background:rgba(255,255,255,.25)}
.bar-btn.icon-only{padding:.5rem}

.home-link{font-size:var(--step--1);color:var(--muted);font-weight:600}
.home-link:hover{color:var(--clay-deep)}

/* ---------------- filter panel ---------------- */
.filters{
  padding:1rem clamp(1rem,3vw,2rem) .4rem;
  border-bottom:1px solid var(--hairline);
  background:var(--paper-2);
}
.filter-panel{display:flex;flex-wrap:wrap;gap:1.4rem 2.2rem;align-items:flex-start}
.filter-group{min-width:0}
.filter-label{display:block;margin-bottom:.5rem;font-size:var(--step--2)!important}
.chip-row{display:flex;flex-wrap:wrap;gap:.4rem}
.chip{
  display:inline-flex;align-items:center;gap:.45rem;
  padding:.32rem .7rem;border-radius:var(--r-pill);
  border:1.5px solid var(--hairline);background:var(--surface);color:var(--ink-2);
  font-size:var(--step--1);transition:all .14s var(--ease);
}
.chip:hover{border-color:var(--cloud)}
.chip-count{font-size:var(--step--2);color:var(--muted);min-width:1.1em;text-align:center}
.chip.is-on{background:var(--ink);border-color:var(--ink);color:var(--paper-2)}
.chip.is-on .chip-count{color:var(--paper-2);opacity:.75}

.filters-foot{display:flex;align-items:center;gap:1rem;padding:.6rem 0 .2rem}
#result-count{font-family:var(--font-mono);font-size:var(--step--1);color:var(--muted)}
#clear-filters{font-size:var(--step--1);color:var(--clay-deep);font-weight:600;text-decoration:underline;text-underline-offset:3px}

/* ---------------- grid ---------------- */
.grid-wrap{flex:1 1 auto;padding:clamp(1rem,3vw,2rem)}
#grid{
  display:grid;gap:clamp(1.1rem,2.4vw,1.8rem);
  grid-template-columns:repeat(auto-fill,minmax(min(100%,330px),1fr));
}
.card-demo{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--hairline);border-radius:var(--r-lg);
  overflow:hidden;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  box-shadow:var(--shadow-sm);
}
.card-demo:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--cloud)}
.card-demo:focus-visible{outline:2.5px solid var(--clay);outline-offset:3px}

.card-preview-wrap{position:relative;background:var(--surface-sunk);border-bottom:1px solid var(--hairline);overflow:hidden}
.preview{position:relative;width:100%;overflow:hidden;pointer-events:none}
.preview-iframe{border:0;transform-origin:0 0;pointer-events:none;background:var(--paper)}
.preview-skeleton{position:absolute;inset:0;display:grid;place-items:center}
.preview-skeleton-chip{width:46px;height:46px;border-radius:12px;opacity:.5;
  animation:pulse 1.6s var(--ease) infinite}
@keyframes pulse{0%,100%{opacity:.25}50%{opacity:.6}}
.card-num{position:absolute;top:.6rem;left:.6rem;z-index:2;
  font-size:var(--step--2);color:#fff;background:rgba(31,30,29,.62);
  padding:.2rem .5rem;border-radius:var(--r-pill);backdrop-filter:blur(4px)}
.card-pure{position:absolute;top:.6rem;right:.6rem;z-index:2;
  font-family:var(--font-mono);font-size:var(--step--2);letter-spacing:.05em;
  color:#fff;background:linear-gradient(135deg,var(--clay),var(--clay-deep));
  padding:.2rem .5rem;border-radius:var(--r-pill)}

.card-body{padding:1rem 1.1rem 1.1rem;display:flex;flex-direction:column;gap:.55rem;flex:1}
.card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:.6rem}
.card-title{font-size:var(--step-1);line-height:1.1;letter-spacing:-.01em}
.card-tags{display:flex;flex-wrap:wrap;gap:.35rem;align-items:center}
.card-tags .tag.dot{opacity:.5}
.card-blurb{font-size:var(--step--1);line-height:1.45;margin-top:.1rem}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:.5rem;padding-top:.4rem}
.swatch{width:16px;height:16px;border-radius:5px;border:1px solid rgba(0,0,0,.15);flex:0 0 auto}

/* star */
.star{color:var(--cloud);padding:.15rem;border-radius:8px;line-height:0;flex:0 0 auto;
  transition:color .15s var(--ease),transform .15s var(--ease)}
.star:hover{color:var(--clay);transform:scale(1.12)}
.star.is-on{color:var(--clay)}
.star--big svg{width:24px;height:24px}

.empty{grid-column:1/-1;text-align:center;padding:4rem 1rem;color:var(--muted)}
.empty .display{font-size:var(--step-2);color:var(--ink);margin-bottom:.4rem}

/* ---------------- focus / flip mode ---------------- */
.focus-open{overflow:hidden}
.focus{
  position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;
  background:var(--paper);
}
.focus[hidden]{display:none}
.focus-bar{
  display:flex;align-items:center;gap:.8rem;flex-wrap:wrap;
  padding:.6rem clamp(.8rem,2vw,1.4rem);
  background:var(--paper-2);border-bottom:1px solid var(--hairline);
}
.focus-counter{font-family:var(--font-mono);font-size:var(--step-0);font-weight:600;color:var(--ink);
  background:var(--surface-sunk);padding:.3rem .7rem;border-radius:var(--r-sm);letter-spacing:.04em}
.focus-meta{display:flex;flex-direction:column;gap:.2rem;min-width:0;flex:1 1 220px}
.focus-meta h2{font-family:var(--font-display);font-size:var(--step-1);line-height:1;letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.focus-tags{display:flex;flex-wrap:wrap;gap:.3rem}
.focus-tags .pill{padding:.2rem .55rem;font-size:var(--step--2)}
.focus-actions{display:flex;align-items:center;gap:.4rem;flex-wrap:wrap}
.focus-swatch{width:18px;height:18px;border-radius:5px;border:1px solid rgba(0,0,0,.2);margin-right:.2rem}
.nav-btn{display:inline-flex;align-items:center;justify-content:center;gap:.3rem;
  width:2.4rem;height:2.4rem;border-radius:var(--r-sm);border:1.5px solid var(--hairline);
  background:var(--surface);color:var(--ink);transition:all .14s var(--ease)}
.nav-btn:hover{border-color:var(--clay);color:var(--clay-deep)}
.nav-btn:disabled{opacity:.35;cursor:not-allowed}
.nav-btn svg{width:18px;height:18px}
.focus-frame-wrap{flex:1 1 auto;position:relative;background:var(--surface-sunk);overflow:hidden}
#focus-frame{position:absolute;inset:0;width:100%;height:100%;border:0;background:var(--paper)}

/* ---------------- toast ---------------- */
.toast{
  position:fixed;left:50%;bottom:1.4rem;transform:translateX(-50%) translateY(1.5rem);
  z-index:90;background:var(--ink);color:var(--paper-2);
  padding:.7rem 1.1rem;border-radius:var(--r-pill);font-size:var(--step--1);font-weight:600;
  box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------------- help overlay ---------------- */
.help-open{overflow:hidden}
.help{position:fixed;inset:0;z-index:80;display:grid;place-items:center;padding:1.2rem;
  background:rgba(31,30,29,.5);backdrop-filter:blur(4px)}
.help[hidden]{display:none}
.help-card{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--r-lg);
  width:min(560px,100%);max-height:90vh;overflow:auto;box-shadow:var(--shadow-lg);padding:1.6rem 1.7rem}
.help-card h2{font-family:var(--font-display);font-size:var(--step-2);margin-bottom:.2rem}
.help-card .dim{margin-bottom:1.2rem}
.kbd-list{display:grid;gap:.55rem}
.kbd-row{display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding-bottom:.55rem;border-bottom:1px dashed var(--hairline)}
.kbd-row:last-child{border-bottom:0}
.kbd-keys{display:flex;gap:.3rem;flex:0 0 auto}
kbd{font-family:var(--font-mono);font-size:var(--step--1);background:var(--surface-sunk);
  border:1px solid var(--hairline);border-bottom-width:2px;border-radius:6px;padding:.15rem .5rem;color:var(--ink)}
.help-desc{color:var(--ink-2);font-size:var(--step--1)}
.help-close{margin-top:1.3rem}

/* ---------------- responsive ---------------- */
@media (max-width:720px){
  .search-wrap{order:10;min-width:100%}
  .search-kbd{display:none}
  .focus-meta h2{font-size:var(--step-0)}
  .focus-bar .label-hide{display:none}
}
@media (max-width:520px){
  #grid{grid-template-columns:1fr}
}