/* ============================================================
   INNOVATIK — vizualizér prípravy povrchu
   ============================================================ */

.sf-controls{
  display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-bottom:34px;
}
@media(max-width:820px){.sf-controls{grid-template-columns:1fr;gap:20px}}
.sf-ctl-label{
  display:block;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:12px;
}
.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg button{
  padding:11px 20px;border-radius:10px;border:1px solid var(--line);
  background:rgba(132,202,234,.05);color:var(--muted);
  font-size:.88rem;font-weight:600;transition:.22s;
}
.seg button:hover{border-color:var(--line-strong);color:var(--text)}
.seg button.on{
  border-color:var(--accent);color:var(--accent);background:rgba(132,202,234,.14);
  box-shadow:0 0 16px rgba(132,202,234,.18);
}

/* ---------- porovnávacia plocha ---------- */
.sf-stage{position:relative}
.sf-wrap{
  position:relative;border-radius:18px;overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
  cursor:ew-resize;touch-action:none;user-select:none;
}
.sf-wrap canvas{display:block;width:100%;height:auto}
#sfAfter{position:absolute;inset:0;width:100%;height:100%}

.sf-handle{
  position:absolute;top:0;bottom:0;left:50%;width:2px;z-index:5;
  background:var(--accent);box-shadow:0 0 18px var(--glow);pointer-events:none;
  transform:translateX(-1px);
}
.sf-handle i{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:46px;height:46px;border-radius:50%;
  background:rgba(7,13,22,.85);backdrop-filter:blur(8px);
  border:2px solid var(--accent);box-shadow:0 0 24px var(--glow);
}
.sf-handle span{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  font-size:.68rem;color:var(--accent);font-weight:700;letter-spacing:-.04em;
  white-space:nowrap;
}

.sf-tag{
  position:absolute;top:16px;z-index:4;padding:10px 16px;border-radius:11px;
  background:rgba(7,13,22,.8);backdrop-filter:blur(10px);border:1px solid var(--line);
  pointer-events:none;max-width:44%;
}
.sf-tag--l{left:16px}
.sf-tag--r{right:16px;text-align:right}
.sf-tag b{
  display:block;font-family:var(--font-head);font-size:.68rem;letter-spacing:.2em;
  color:var(--muted-2);margin-bottom:2px;
}
.sf-tag--r b{color:var(--accent)}
.sf-tag span{font-size:.85rem;font-weight:600;color:var(--text)}

.sf-scale{
  position:absolute;left:16px;bottom:14px;z-index:4;display:flex;align-items:center;gap:10px;
  pointer-events:none;font-size:.7rem;color:rgba(255,255,255,.75);
  text-shadow:0 1px 4px rgba(0,0,0,.8);
}
.sf-scale i{
  display:block;width:78px;height:8px;border:1px solid rgba(255,255,255,.7);
  border-top:0;
}

/* ---------- informačné karty ---------- */
.sf-info{
  display:grid;grid-template-columns:1fr 1fr .9fr;gap:20px;margin-top:26px;
}
@media(max-width:980px){.sf-info{grid-template-columns:1fr}}
.sf-card{
  background:linear-gradient(160deg,var(--panel),var(--bg-2));
  border:1px solid var(--line);border-radius:16px;padding:22px 24px;
}
.sf-card--accent{border-color:var(--line-strong);background:linear-gradient(160deg,rgba(132,202,234,.09),var(--bg-2))}
.sf-lbl{
  display:block;font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted-2);font-weight:600;margin-bottom:10px;
}
.sf-card--accent .sf-lbl{color:var(--accent)}
.sf-card p{color:var(--muted);font-size:.92rem;line-height:1.6}

.sf-metrics{display:grid;gap:10px;align-content:start}
.sf-metric{
  background:rgba(7,13,22,.5);border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;display:flex;justify-content:space-between;align-items:baseline;gap:12px;
}
.sf-metric span{font-size:.78rem;color:var(--muted-2)}
.sf-metric b{
  font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-size:.95rem;color:var(--accent);letter-spacing:-.02em;text-align:right;
}
.sf-metric--wide b{font-size:.82rem;color:var(--text);font-family:var(--font-body);font-weight:600}