/* =====================================================
   Image Grid Splitter — mobile-first, fully responsive
   Mobile (default)  : single column, big tap targets
   Tablet  (>=600px) : bigger chips, 2-column settings
   Laptop  (>=900px) : preview left, settings right
   ===================================================== */

.igs-section{padding-top:6px}
.igs-section [hidden]{display:none !important}
.igs-section *,.igs-section *::before,.igs-section *::after{box-sizing:border-box}

/* ---------- Heading ---------- */
.igs-head{text-align:center;max-width:680px;margin:0 auto 22px}
.igs-badge{display:inline-flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;max-width:100%;background:var(--black-soft);border:1px solid var(--gold);color:var(--gold);padding:6px 14px;border-radius:30px;font-size:.74rem;line-height:1.4;margin-bottom:14px;text-align:center}
.igs-title{font-size:clamp(1.6rem,7vw,2.3rem);font-weight:700;line-height:1.2;margin:0 0 8px;text-align:center}
.igs-title span{color:var(--gold)}
.igs-sub{color:var(--text-muted);font-size:clamp(.84rem,3.6vw,.98rem);line-height:1.6;margin:0 auto;max-width:580px;text-align:center}

.igs-alert{max-width:700px;margin:0 auto 16px;background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.35);color:#ff9d9d;padding:12px 16px;border-radius:10px;font-size:.88rem;line-height:1.5;text-align:center;display:none}
.igs-alert.show{display:block}

/* ---------- Upload ---------- */
.igs-drop{max-width:640px;margin:0 auto;border:2px dashed var(--card-border);border-radius:var(--radius);padding:38px 16px;text-align:center;cursor:pointer;background:var(--card-bg);transition:var(--transition-fast);-webkit-tap-highlight-color:transparent}
.igs-drop:hover,.igs-drop:focus,.igs-drop.drag{outline:0;border-color:var(--gold);background:var(--gold-glow-soft)}
.igs-drop > i{display:block;font-size:2.1rem;color:var(--gold);margin-bottom:14px}
.igs-drop-title{color:var(--text-light);font-weight:600;font-size:1rem;margin-bottom:6px;line-height:1.4}
.igs-drop-sub{color:var(--text-muted);font-size:.8rem;line-height:1.5}

/* ---------- Layout ---------- */
.igs-work{max-width:1060px;margin:0 auto}
.igs-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:14px;margin-bottom:14px}
.igs-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius);padding:16px;min-width:0}
.igs-card-title{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-weight:700;font-size:.95rem;color:var(--text-light);margin-bottom:14px}
.igs-card-title i{color:var(--gold)}
.igs-hint{font-weight:400;color:var(--text-faint);font-size:.76rem}

/* ---------- Preview ---------- */
.igs-stage{position:relative;line-height:0;border-radius:10px;overflow:hidden;background:#0a0a0a;user-select:none;-webkit-user-select:none}
.igs-stage img{display:block;width:100%;height:auto;max-height:70vh;object-fit:contain;margin:0 auto;-webkit-touch-callout:none}
.igs-crop{position:absolute;display:grid;box-shadow:0 0 0 9999px rgba(0,0,0,.6);outline:2px solid var(--gold);outline-offset:-1px;pointer-events:none}
.igs-crop span{position:relative;border:1px solid rgba(255,255,255,.85);box-shadow:inset 0 0 0 1px rgba(0,0,0,.35);display:flex;align-items:center;justify-content:center}
.igs-crop b{background:rgba(0,0,0,.65);color:var(--gold);font-size:clamp(.62rem,2.6vw,.9rem);line-height:1;min-width:1.6em;padding:.35em .45em;border-radius:20px;text-align:center}
.igs-meta{display:flex;flex-wrap:wrap;gap:6px 18px;margin:12px 0 12px;font-size:.8rem;color:var(--text-muted);line-height:1.5}
.igs-meta strong{color:var(--text-light)}

/* ---------- Settings ---------- */
.igs-label,.igs-field label{font-size:.82rem;color:var(--text-muted);font-weight:600}
.igs-label{margin-bottom:8px}
.igs-chips{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:16px}
.igs-chip{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:54px;padding:8px 4px;background:var(--black-soft);border:1px solid var(--card-border);color:var(--text-light);border-radius:12px;font-size:1rem;font-weight:700;font-family:inherit;cursor:pointer;transition:var(--transition-fast);-webkit-tap-highlight-color:transparent}
.igs-chip small{font-size:.68rem;font-weight:400;color:var(--text-faint)}
.igs-chip:hover{border-color:var(--gold)}
.igs-chip.active{background:var(--gold-glow-soft);border-color:var(--gold);color:var(--gold)}
.igs-chip.active small{color:var(--gold)}

.igs-row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.igs-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px;min-width:0}
.igs-input{width:100%;min-width:0;min-height:46px;background:rgba(255,255,255,.03);border:1px solid var(--card-border);border-radius:10px;padding:11px 13px;color:var(--text-light);font-family:inherit;font-size:1rem;outline:0;transition:border-color .15s ease;-webkit-appearance:none;appearance:none}
select.igs-input{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/></svg>");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;text-overflow:ellipsis}
.igs-input:focus{border-color:var(--gold)}
select.igs-input option{background:#1a1a1a;color:#fff}
.igs-check{display:flex;align-items:flex-start;gap:10px;min-height:44px;padding:4px 0;font-size:.88rem;line-height:1.45;color:var(--text-muted);cursor:pointer}
.igs-check input{accent-color:var(--gold);width:20px;height:20px;flex-shrink:0;margin-top:1px}

.igs-btn-row{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.igs-btn-row .btn{width:100%;min-height:50px;justify-content:center;text-align:center;font-size:1rem}
.igs-btn-row .btn:disabled{opacity:.55;cursor:not-allowed;pointer-events:none}
.igs-mini-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:9px 14px;background:var(--black-soft);border:1px solid var(--card-border);color:var(--text-light);border-radius:10px;font-size:.85rem;font-family:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}
.igs-mini-btn:hover{border-color:var(--gold);color:var(--gold)}
#igsChange{width:100%}

.igs-progress{margin-top:12px}
.igs-bar{height:8px;border-radius:8px;background:rgba(255,255,255,.08);overflow:hidden}
.igs-bar span{display:block;height:100%;width:0;background:var(--gold);border-radius:8px;transition:width .2s ease}
.igs-ptext{margin-top:6px;font-size:.78rem;color:var(--text-muted);text-align:center}
.igs-note{margin-top:12px;font-size:.78rem;color:var(--text-faint);line-height:1.55}
.igs-note i{margin-right:4px}

/* ---------- Tiles ---------- */
.igs-order{display:flex;gap:10px;align-items:flex-start;background:var(--gold-glow-soft);border:1px solid rgba(252,192,10,.3);color:var(--text-light);padding:10px 12px;border-radius:10px;font-size:.8rem;line-height:1.55;margin-bottom:14px}
.igs-order i{color:var(--gold);margin-top:3px;flex-shrink:0}
.igs-order strong{color:var(--gold)}
.igs-tiles{display:grid;gap:8px}
.igs-tile{display:flex;flex-direction:column;gap:6px;min-width:0}
.igs-tile-img{position:relative;line-height:0;border-radius:8px;overflow:hidden;background:#0a0a0a;border:1px solid var(--card-border)}
.igs-tile-img canvas{display:block;width:100%;height:auto}
.igs-tile-no{position:absolute;left:4px;top:4px;background:rgba(0,0,0,.7);color:var(--gold);font-size:.66rem;line-height:1;font-weight:700;padding:4px 7px;border-radius:20px}
.igs-tile-dl{display:flex;align-items:center;justify-content:center;gap:5px;min-height:40px;padding:6px 4px;background:var(--black-soft);border:1px solid var(--card-border);color:var(--text-light);border-radius:8px;font-size:.74rem;font-family:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}
.igs-tile-dl:hover{border-color:var(--gold);color:var(--gold)}

/* ---------- Tablet ---------- */
@media(min-width:600px){
  .igs-card{padding:20px}
  .igs-chips{grid-template-columns:repeat(6,minmax(0,1fr))}
  .igs-badge{font-size:.8rem;padding:6px 16px}
  .igs-tiles{gap:12px}
  .igs-tile-dl{font-size:.8rem}
  #igsChange{width:auto}
}

/* ---------- Laptop / desktop ---------- */
@media(min-width:900px){
  .igs-head{margin-bottom:30px}
  .igs-grid{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:22px;margin-bottom:22px;align-items:start}
  .igs-previewcard{position:sticky;top:90px}
  .igs-card{padding:24px}
  .igs-chips{grid-template-columns:repeat(3,minmax(0,1fr))}
  .igs-tiles{gap:14px}
}
@media(min-width:1200px){
  .igs-chips{grid-template-columns:repeat(6,minmax(0,1fr))}
}

/* ---------- Very small phones ---------- */
@media(max-width:380px){
  .igs-card{padding:14px 12px}
  .igs-chip{font-size:.92rem}
  .igs-row2{gap:8px}
  .igs-tiles{gap:5px}
  .igs-tile-dl span{display:none}
}

@media(prefers-reduced-motion:reduce){
  .igs-bar span,.igs-input,.igs-chip,.igs-drop{transition:none}
}