/* ═══════════════════════════════════════
   DTF-Konfigurator v3 – Compact Designer
   ═══════════════════════════════════════ */

:root {
  --c1:#1C2E4A; --c1h:#15213A; --acc:#2563EB; --ok:#16A34A;
  --err:#DC2626; --brd:#E2E8F0; --bg:#F7F9FC; --card:#fff;
  --txt:#1A202C; --m:#64748B; --r:8px; --t:.16s ease; --side:330px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  font-size:13px;color:var(--txt);background:var(--bg);line-height:1.45;
}

.hidden{display:none!important}

/* ── LAYOUT ── */
.kfg-layout{display:flex;min-height:100vh}

/* ── SIDEBAR ── */
.kfg-side{
  width:var(--side);flex-shrink:0;background:var(--card);
  border-right:1px solid var(--brd);
  height:100vh;position:sticky;top:0;
  display:flex;flex-direction:column;
  overflow-y:auto;overflow-x:hidden;
  scrollbar-width:thin;scrollbar-color:var(--brd) transparent;
}
.kfg-side::-webkit-scrollbar{width:3px}
.kfg-side::-webkit-scrollbar-thumb{background:var(--brd);border-radius:3px}

.kfg-sec{padding:14px 16px;border-bottom:1px solid var(--brd)}
.kfg-sec-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--m);margin-bottom:10px}
.kfg-sec-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.kfg-sec-val{font-size:12px;color:var(--acc);font-weight:600}

/* ── PRODUKTE (4 in einer Reihe) ── */
.kfg-products{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.kfg-pcard{
  border:2px solid var(--brd);border-radius:var(--r);overflow:hidden;
  cursor:pointer;transition:var(--t);background:var(--bg);text-align:center;
}
.kfg-pcard:hover{border-color:var(--acc)}
.kfg-pcard.on{border-color:var(--c1);background:#EEF2FF}
.kfg-pcard img{width:100%;aspect-ratio:1;object-fit:contain;display:block;background:#f8fafc}
.kfg-pcard span{display:block;font-size:10px;font-weight:700;padding:4px 2px;color:var(--c1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ── FARBEN ── */
.kfg-colors{display:flex;flex-wrap:wrap;gap:5px}
.kfg-sw{
  width:24px;height:24px;border-radius:50%;cursor:pointer;
  border:2.5px solid transparent;transition:var(--t);position:relative;flex-shrink:0;
}
.kfg-sw:hover{transform:scale(1.2)}
.kfg-sw.on{border-color:var(--c1);box-shadow:0 0 0 2px #fff,0 0 0 3.5px var(--c1)}
.kfg-sw[data-b]{box-shadow:inset 0 0 0 1px var(--brd)}
.kfg-sw[data-b].on{box-shadow:inset 0 0 0 1px var(--brd),0 0 0 2px #fff,0 0 0 3.5px var(--c1)}
.kfg-sw-tip{
  position:absolute;bottom:calc(100% + 5px);left:50%;transform:translateX(-50%);
  background:var(--c1);color:#fff;font-size:10px;padding:2px 6px;border-radius:3px;
  white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .1s;z-index:9;
}
.kfg-sw:hover .kfg-sw-tip{opacity:1}

/* ── POSITION SELECT ── */
.kfg-select{
  width:100%;padding:9px 10px;border:1.5px solid var(--brd);border-radius:var(--r);
  font-size:13px;font-family:inherit;color:var(--txt);background:#fff;
  cursor:pointer;appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 10px center;
}
.kfg-select:focus{outline:none;border-color:var(--acc)}

/* ── UPLOAD ── */
.kfg-upload{
  border:2px dashed var(--brd);border-radius:var(--r);padding:14px 12px;
  text-align:center;cursor:pointer;transition:var(--t);color:var(--m);
}
.kfg-upload:hover,.kfg-upload.drag{border-color:var(--acc);color:var(--acc);background:#F0F5FF}
.kfg-upload-ico{width:22px;height:22px;margin:0 auto 4px;display:block}
.kfg-upload span{font-size:12px}
.kfg-upload small{display:block;font-size:10px;margin-top:3px;color:var(--m)}

.kfg-file-row{
  display:flex;align-items:center;gap:8px;margin-top:8px;
  padding:8px 10px;background:#F0FDF4;border:1px solid #BBF7D0;border-radius:var(--r);font-size:11px;
}
.kfg-file-row:empty{display:none}
.kfg-file-row .fn{font-weight:600;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kfg-file-row .fs{color:var(--m);flex-shrink:0}
.kfg-file-row .fd{background:none;border:none;color:var(--err);cursor:pointer;font-size:15px;padding:0 2px;line-height:1}

.kfg-scale-row{display:flex;align-items:center;gap:6px;margin-top:8px}
.kfg-scale-lbl{font-size:11px;font-weight:600;color:var(--m);flex-shrink:0}
.kfg-slider{flex:1;accent-color:var(--c1);height:3px}
.kfg-scale-val{font-size:11px;font-weight:700;color:var(--c1);width:32px;text-align:right}

.kfg-notes{
  width:100%;margin-top:8px;padding:7px 9px;border:1.5px solid var(--brd);border-radius:var(--r);
  font-size:12px;font-family:inherit;resize:vertical;min-height:42px;color:var(--txt);
}
.kfg-notes:focus{outline:none;border-color:var(--acc)}

/* ── STÜCKZAHL GRID ── */
.kfg-total-badge{
  font-size:14px;color:var(--c1);min-width:20px;text-align:center;
  background:#EEF2FF;padding:2px 8px;border-radius:20px;
}

.kfg-sz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}

.kfg-sz{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:6px 2px;border:1px solid var(--brd);border-radius:var(--r);background:var(--bg);
}
.kfg-sz-label{font-size:12px;font-weight:800;color:var(--c1)}
.kfg-sz input{
  width:38px;height:26px;border:1px solid var(--brd);border-radius:4px;
  text-align:center;font-size:13px;font-weight:600;color:var(--txt);
  -moz-appearance:textfield;outline:none;background:#fff;
}
.kfg-sz input::-webkit-inner-spin-button{-webkit-appearance:none}
.kfg-sz input:focus{border-color:var(--acc)}

/* ── PREIS ── */
.kfg-price-bar{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 16px;background:var(--c1);color:#fff;font-size:12px;
}
.kfg-price-bar strong{font-size:16px;font-weight:800}

/* ── KONTAKT ── */
.kfg-contact{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.kfg-inp{
  padding:8px 9px;border:1.5px solid var(--brd);border-radius:var(--r);
  font-size:12px;font-family:inherit;color:var(--txt);width:100%;background:#fff;
}
.kfg-inp:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 2px rgba(37,99,235,.1)}
.kfg-inp::placeholder{color:#94A3B8}

/* ── SUBMIT (sticky) ── */
.kfg-submit{
  position:sticky;bottom:0;background:var(--card);
  border-top:1px solid var(--brd);padding:12px 16px;
  z-index:5;
}
.kfg-priv{display:flex;align-items:flex-start;gap:6px;font-size:11px;color:var(--m);cursor:pointer;margin-bottom:10px;line-height:1.4}
.kfg-priv input{width:14px;height:14px;margin-top:1px;accent-color:var(--c1);cursor:pointer;flex-shrink:0}

.kfg-btn-go{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;padding:12px 16px;background:var(--ok);color:#fff;
  border:none;border-radius:var(--r);font-size:14px;font-weight:700;
  cursor:pointer;transition:var(--t);font-family:inherit;
}
.kfg-btn-go svg{width:16px;height:16px;flex-shrink:0}
.kfg-btn-go:hover{background:#15803D;transform:translateY(-1px);box-shadow:0 4px 14px rgba(22,163,74,.3)}
.kfg-btn-go:active{transform:none}
.kfg-btn-go:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

.kfg-err{color:var(--err);font-size:11px;font-weight:500;margin-top:6px;min-height:14px}

/* ── CANVAS MAIN ── */
.kfg-main{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  position:sticky;top:0;height:100vh;padding:16px;gap:12px;background:var(--bg);
}

.kfg-toolbar{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}

.kfg-toggle{
  display:flex;background:var(--card);border:1px solid var(--brd);
  border-radius:var(--r);padding:2px;gap:2px;
}
.kfg-toggle button{
  padding:5px 12px;border:none;border-radius:5px;background:none;
  font-size:11px;font-weight:600;color:var(--m);cursor:pointer;
  transition:var(--t);font-family:inherit;white-space:nowrap;
}
.kfg-toggle button.active{background:var(--c1);color:#fff}

.kfg-canvas-box{
  width:100%;max-width:440px;background:var(--card);border-radius:14px;
  border:1px solid var(--brd);overflow:hidden;
  box-shadow:0 6px 28px rgba(0,0,0,.07);padding:16px;
  display:flex;align-items:center;justify-content:center;
}

#kfg-cv{width:100%;max-width:300px;height:auto;display:block;touch-action:none}

.kfg-hint{font-size:11px;color:var(--m);text-align:center;max-width:280px}

/* ── ERFOLG OVERLAY ── */
.kfg-ok{
  position:fixed;inset:0;background:rgba(28,46,74,.55);
  display:flex;align-items:center;justify-content:center;z-index:100;
  backdrop-filter:blur(3px);animation:kIn .25s ease;
}
.kfg-ok-inner{
  background:#fff;border-radius:18px;padding:44px 36px;text-align:center;
  max-width:400px;width:calc(100% - 24px);box-shadow:0 16px 50px rgba(0,0,0,.18);
}
.kfg-ok-ico{width:56px;height:56px;margin:0 auto 20px;display:block}
.kfg-ok-inner h2{font-size:22px;font-weight:800;color:var(--c1);margin-bottom:10px}
.kfg-ok-inner p{color:var(--m);margin-bottom:6px;font-size:13px;line-height:1.5}

@keyframes kIn{from{opacity:0}to{opacity:1}}

/* ── RESPONSIVE ── */
@media(max-width:768px){
  .kfg-layout{flex-direction:column-reverse}
  .kfg-main{position:static;height:auto;min-height:340px;padding:12px}
  .kfg-side{width:100%;height:auto;position:static;overflow-y:visible}
  .kfg-products{grid-template-columns:repeat(4,1fr)}
  .kfg-contact{grid-template-columns:1fr}
  .kfg-submit{position:static}
}

@media(max-width:420px){
  .kfg-sz-grid{grid-template-columns:repeat(3,1fr)}
  .kfg-toolbar{flex-direction:column;align-items:center}
}