/* =====================================================================
   WALL VISUALIZER — masked canvas paint preview
   Palette matches the existing Agsar shade-card page tokens so the
   feature drops into the brand without a visual seam.
   ===================================================================== */
:root{
  /* Each token prefers the host page's existing --ag-* brand variable
     (e.g. when this file loads inside shadecards.php) and only falls
     back to its own literal value when standalone. */
  --wv-cream:   var(--ag-cream, #F8F5F0);
  --wv-ink:     var(--ag-ink,   #1C1917);
  --wv-red:     var(--ag-red,   #C8392B);
  --wv-red-dk:  var(--ag-red-dk,#A12E23);
  --wv-gold:    var(--ag-gold,  #B8892A);
  --wv-gold-lt: var(--ag-gold-lt,#F0DAA0);
  --wv-navy:    var(--ag-navy,  #1B2B4B);
  --wv-muted:   var(--ag-muted, #6B6560);
  --wv-border:  var(--ag-border,rgba(28,25,23,.12));
  --wv-surface: var(--ag-surface,#FFFFFF);
  --wv-bg:      var(--ag-bg,    #F4F1EC);
}

.wv-section{ background:var(--wv-ink); padding:64px 0 80px; }
.wv-head{ text-align:center; margin-bottom:40px; }
.wv-eyebrow{ display:inline-flex; align-items:center; gap:8px; font-size:10px; font-weight:700;
  letter-spacing:3px; text-transform:uppercase; color:var(--wv-gold-lt); margin-bottom:14px; }
.wv-title{ font-family:'Fraunces',serif; font-size:clamp(28px,4vw,44px); font-weight:700; color:#fff; margin:0 0 10px; }
.wv-title em{ font-style:italic; color:var(--wv-gold-lt); }
.wv-sub{ color:rgba(255,255,255,.6); font-size:14px; max-width:560px; margin:0 auto; line-height:1.7; }

.wv-room-tabs{ display:flex; gap:8px; justify-content:center; margin:28px 0 0; flex-wrap:wrap; align-items:center; }
.wv-rtab{ padding:8px 18px; border-radius:50px; border:1.5px solid rgba(255,255,255,.18);
  background:transparent; color:rgba(255,255,255,.75); font-size:13px; font-weight:600; cursor:pointer; transition:.2s; }
.wv-rtab:hover{ border-color:var(--wv-gold-lt); color:#fff; }
.wv-rtab.on{ background:var(--wv-gold-lt); border-color:var(--wv-gold-lt); color:var(--wv-ink); }

.wv-upload-pill{
  display:inline-flex; align-items:center; gap:7px; padding:8px 18px 8px 14px;
  border-radius:50px; border:1.5px dashed rgba(255,255,255,.35); background:transparent;
  color:rgba(255,255,255,.85); font-size:13px; font-weight:600; cursor:pointer; transition:.2s;
}
.wv-upload-pill:hover{ border-color:var(--wv-gold-lt); color:var(--wv-gold-lt); background:rgba(255,255,255,.06); }
.wv-upload-pill input[type=file]{ display:none; }

/* ── Tap-to-select-wall hint, shown over the stage for uploaded photos ── */
.wv-tap-hint{
  position:absolute; inset:0; z-index:6; display:none; pointer-events:none;
  align-items:center; justify-content:center; text-align:center; padding:24px;
  background:rgba(15,15,13,.42); color:#fff; backdrop-filter:blur(1px);
}
.wv-stage.wv-needs-tap .wv-tap-hint{ display:flex; }
.wv-tap-hint-inner{ max-width:280px; }
.wv-tap-hint i{ font-size:26px; color:var(--wv-gold-lt); margin-bottom:10px; display:block; }
.wv-tap-hint strong{ display:block; font-size:15px; margin-bottom:4px; }
.wv-tap-hint span{ font-size:12.5px; opacity:.85; line-height:1.5; }

.wv-mode-badge{
  position:absolute; top:12px; left:12px; z-index:4; padding:5px 12px; border-radius:50px;
  background:rgba(0,0,0,.55); color:#fff; font-size:11px; font-weight:600; letter-spacing:.3px;
  display:none; align-items:center; gap:6px;
}
.wv-custom-mode .wv-mode-badge{ display:flex; }

/* ── Tolerance slider (custom-photo wall selection sensitivity) ── */
.wv-tolerance-row{ display:none; align-items:center; gap:10px; padding:0 2px; }
.wv-tolerance-row.show{ display:flex; }
.wv-tolerance-row label{ font-size:11.5px; font-weight:600; color:var(--wv-muted); white-space:nowrap; }
.wv-tolerance-row input[type=range]{ flex:1; accent-color:var(--wv-red); }

.wv-app{
  margin-top:36px;
  background:var(--wv-surface);
  border-radius:22px;
  padding:24px;
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:24px;
  box-shadow:0 30px 70px rgba(0,0,0,.35);
}

/* ── Left: stage ───────────────────────────────────────── */
.wv-stage-col{ display:flex; flex-direction:column; gap:14px; }

.wv-stage{
  position:relative;
  width:100%;
  aspect-ratio:16/10;
  border-radius:16px;
  overflow:hidden;
  background:#000;
  box-shadow:inset 0 0 0 1px var(--wv-border);
}
.wv-stage img[data-wv-before],
.wv-stage canvas{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; display:block;
}
.wv-stage canvas{ transition:opacity .25s ease; }
.wv-stage canvas.wv-fade{ opacity:.35; }

.wv-handle{ display:none; }
.wv-compare-on .wv-handle{
  display:block; position:absolute; top:0; bottom:0; left:50%;
  width:0; z-index:5; cursor:ew-resize; transform:translateX(-50%);
}
.wv-compare-on .wv-handle::before{
  content:''; position:absolute; top:0; bottom:0; left:0; width:2px;
  background:#fff; box-shadow:0 0 0 1px rgba(0,0,0,.25);
}
.wv-compare-on .wv-handle::after{
  content:'⇆'; position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:38px; height:38px; border-radius:50%; background:#fff; color:var(--wv-ink);
  display:flex; align-items:center; justify-content:center; font-size:16px;
  box-shadow:0 4px 14px rgba(0,0,0,.3);
}

.wv-toolbar{ display:flex; gap:8px; flex-wrap:wrap; }
.wv-tool{
  display:inline-flex; align-items:center; gap:7px; padding:9px 14px;
  border-radius:50px; border:1.5px solid var(--wv-border); background:var(--wv-bg);
  color:var(--wv-ink); font-size:12.5px; font-weight:600; cursor:pointer; transition:.18s;
}
.wv-tool:hover{ border-color:var(--wv-red); color:var(--wv-red); }
.wv-tool.on{ background:var(--wv-red); border-color:var(--wv-red); color:#fff; }
.wv-tool i{ font-size:13px; }

.wv-selected{
  display:flex; align-items:center; gap:12px; padding:14px 16px;
  background:var(--wv-bg); border-radius:14px; border:1px solid var(--wv-border);
}
.wv-sel-swatch{ width:40px; height:40px; border-radius:10px; background:#555; flex:none; box-shadow:0 0 0 3px #fff, 0 0 0 4px var(--wv-border); }
.wv-sel-text strong{ display:block; font-size:14.5px; color:var(--wv-ink); }
.wv-sel-text span{ font-size:12px; color:var(--wv-muted); }
.wv-sel-fav{ margin-left:auto; border:none; background:none; font-size:19px; color:var(--wv-border); cursor:pointer; transition:.2s; }
.wv-sel-fav.on{ color:var(--wv-red); }

/* ── CTA row beneath the stage ───────────────────────────── */
.vis-cta{ display:flex; gap:10px; flex-wrap:wrap; justify-content:center; margin-top:4px; }
.vis-cta-primary{
  display:inline-flex; align-items:center; gap:8px; padding:11px 24px;
  background:var(--wv-red); color:#fff; border-radius:50px; font-size:13px; font-weight:700;
  text-decoration:none; transition:.2s;
}
.vis-cta-primary:hover{ background:var(--wv-red-dk); color:#fff; }
.vis-cta-outline{
  display:inline-flex; align-items:center; gap:8px; padding:11px 24px;
  border:1.5px solid var(--wv-border); color:var(--wv-ink); border-radius:50px;
  font-size:13px; font-weight:700; text-decoration:none; transition:.2s; background:transparent;
}
.vis-cta-outline:hover{ border-color:var(--wv-red); color:var(--wv-red); }

/* ── Right: filters + grid ────────────────────────────────── */
.wv-panel{ display:flex; flex-direction:column; min-height:0; }
.wv-search{ position:relative; margin-bottom:12px; }
.wv-search input{
  width:100%; border:1.5px solid var(--wv-border); border-radius:50px;
  padding:10px 16px 10px 38px; font-size:13px; outline:none; background:var(--wv-bg); color:var(--wv-ink);
}
.wv-search input:focus{ border-color:var(--wv-red); background:#fff; }
.wv-search i{ position:absolute; left:14px; top:50%; transform:translateY(-50%); color:var(--wv-muted); font-size:12px; }

.wv-cats{ display:flex; gap:6px; flex-wrap:wrap; margin-bottom:16px; }
.wv-cat{
  padding:6px 14px; border-radius:50px; border:1.5px solid var(--wv-border); background:transparent;
  font-size:11.5px; font-weight:600; color:var(--wv-muted); cursor:pointer; transition:.18s; white-space:nowrap;
}
.wv-cat:hover{ border-color:var(--wv-red); color:var(--wv-red); }
.wv-cat.on{ background:var(--wv-red); border-color:var(--wv-red); color:#fff; }

.wv-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:10px;
  overflow-y:auto; padding-right:4px; max-height:420px;
}
.wv-card{
  display:flex; flex-direction:column; align-items:flex-start; gap:6px;
  border:1.5px solid var(--wv-border); border-radius:12px; padding:8px; background:#fff;
  cursor:pointer; text-align:left; transition:.18s;
}
.wv-card:hover{ border-color:var(--wv-red); transform:translateY(-2px); }
.wv-card.on{ border-color:var(--wv-red); box-shadow:0 0 0 3px rgba(200,57,43,.12); }
.wv-card-color{ width:100%; height:46px; border-radius:8px; display:block; box-shadow:inset 0 0 0 1px rgba(0,0,0,.08); }
.wv-card-name{ font-size:11.5px; font-weight:700; color:var(--wv-ink); line-height:1.25; }
.wv-card-code{ font-size:10px; color:var(--wv-muted); }
.wv-empty{ grid-column:1/-1; text-align:center; color:var(--wv-muted); font-size:13px; padding:30px 0; }

/* ── Scrollbar polish ─────────────────────────────────────── */
.wv-grid::-webkit-scrollbar{ width:6px; }
.wv-grid::-webkit-scrollbar-thumb{ background:var(--wv-border); border-radius:6px; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 991px){
  .wv-app{ grid-template-columns:1fr; }
  .wv-grid{ max-height:340px; grid-template-columns:repeat(4,1fr); }
}
@media (max-width: 600px){
  .wv-app{ padding:16px; border-radius:16px; }
  .wv-grid{ grid-template-columns:repeat(3,1fr); max-height:300px; }
  .wv-toolbar{ justify-content:center; }
  .wv-tool span{ display:none; }      /* icon-only on small screens */
  .wv-tool{ padding:10px; }
}
@media (min-width: 1600px){
  .wv-app{ max-width:1400px; margin-inline:auto; }
}