/* Indus Big Bag Configurator v4.0 */
.icfg{--icfg-pri:#F39200;--icfg-sec:#2D3748;--icfg-bg:#f5f6f8;--icfg-card:#fff;--icfg-border:#e2e6ec;--icfg-text:#2d3748;--icfg-muted:#7a8599;--icfg-radius:10px;position:relative;max-width:860px;margin:0 auto;padding:40px 32px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--icfg-text);background:var(--icfg-bg);border-radius:var(--icfg-radius)}

/* Progress */
.icfg-progress{display:flex;align-items:flex-start;justify-content:center;gap:0;margin-bottom:36px;flex-wrap:nowrap}
.icfg-pstep{display:flex;flex-direction:column;align-items:center;min-width:0;flex:0 1 auto;cursor:default;opacity:.35;transition:opacity .3s}
.icfg-pstep.active,.icfg-pstep.done{opacity:1}
.icfg-pnum{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;background:var(--icfg-border);color:var(--icfg-muted);transition:all .3s}
.icfg-pstep.active .icfg-pnum{background:var(--icfg-pri);color:#fff;box-shadow:0 3px 10px rgba(243,146,0,.35)}
.icfg-pstep.done .icfg-pnum{background:var(--icfg-sec);color:#fff}
.icfg-plabel{font-size:10px;margin-top:5px;color:var(--icfg-muted);text-align:center;white-space:nowrap;text-transform:uppercase;letter-spacing:.03em;font-weight:600}
.icfg-pstep.active .icfg-plabel{color:var(--icfg-text)}
.icfg-pline{width:100%;min-width:16px;max-width:60px;flex:1 1 auto;height:2px;background:var(--icfg-border);margin-top:17px;transition:background .3s}
.icfg-pline.done{background:var(--icfg-sec)}

/* Steps */
.icfg-step{display:none;animation:icfgFade .35s ease}.icfg-step.active{display:block}
@keyframes icfgFade{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.icfg-header{text-align:center;margin-bottom:24px}
.icfg-header h3{font-size:20px;font-weight:700;color:var(--icfg-sec);margin:0 0 6px;line-height:1.3}
.icfg-hint{font-size:13px;color:var(--icfg-muted);margin:4px 0 0}

/* Cards — full-bleed images */
.icfg-cards{display:grid;gap:14px;max-width:680px;margin:0 auto}
.icfg-cols-2{grid-template-columns:repeat(2,1fr);max-width:480px}
.icfg-cols-3{grid-template-columns:repeat(3,1fr);max-width:600px}
.icfg-cols-4{grid-template-columns:repeat(2,1fr)}
@media(min-width:640px){.icfg-cols-4{grid-template-columns:repeat(4,1fr);max-width:680px}}

.icfg-card{position:relative;display:flex;flex-direction:column;background:var(--icfg-card);border:2px solid var(--icfg-border);border-radius:var(--icfg-radius);cursor:pointer;transition:all .25s;text-align:center;overflow:hidden;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.icfg-card:hover{border-color:var(--icfg-pri);transform:translateY(-2px);box-shadow:0 4px 16px rgba(243,146,0,.1)}
.icfg-card input{position:absolute;opacity:0;pointer-events:none}
.icfg-card.selected{border-color:var(--icfg-pri);background:rgba(243,146,0,.04);box-shadow:0 0 0 1px var(--icfg-pri),0 4px 16px rgba(243,146,0,.12)}
.icfg-card.selected .icfg-card-lbl{color:var(--icfg-pri);font-weight:700}

/* Full-bleed image fills card top */
.icfg-card-img{width:100%;aspect-ratio:4/3;overflow:hidden;background:#f0f1f3}
.icfg-card-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s}
.icfg-card:hover .icfg-card-img img{transform:scale(1.04)}

/* Label at bottom */
.icfg-card-lbl{padding:12px 10px;font-size:12px;font-weight:600;color:var(--icfg-text);line-height:1.3;transition:all .25s}

/* Checkbox indicator */
.icfg-check{position:absolute;top:8px;right:8px;width:20px;height:20px;border:2px solid rgba(255,255,255,.7);border-radius:4px;transition:all .25s;z-index:2;background:rgba(255,255,255,.4);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.icfg-card.selected .icfg-check{background:var(--icfg-pri);border-color:var(--icfg-pri)}
.icfg-card.selected .icfg-check::after{content:'✓';color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;width:100%;height:100%}

/* Explanation fields below cards */
.icfg-explain{max-width:600px;margin:20px auto 0}
.icfg-explain label{display:block;font-size:12px;font-weight:700;color:var(--icfg-sec);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}

/* Form fields */
.icfg-panel{max-width:480px;margin:0 auto}
.icfg-field{display:flex;flex-direction:column;gap:5px;margin-bottom:14px}
.icfg-field label{font-size:12px;font-weight:700;color:var(--icfg-sec);text-transform:uppercase;letter-spacing:.04em}
.icfg-opt{font-weight:400;text-transform:none;color:var(--icfg-muted);letter-spacing:0}
.icfg-input,.icfg-textarea{width:100%;padding:11px 14px;border:2px solid var(--icfg-border);border-radius:8px;font-size:14px;font-family:inherit;color:var(--icfg-text);background:#fff;transition:border-color .2s,box-shadow .2s;outline:none;box-sizing:border-box}
.icfg-input:focus,.icfg-textarea:focus{border-color:var(--icfg-pri);box-shadow:0 0 0 3px rgba(243,146,0,.1)}
.icfg-input::placeholder,.icfg-textarea::placeholder{color:#aab0ba}
.icfg-input.error,.icfg-textarea.error{border-color:#e74c3c;box-shadow:0 0 0 3px rgba(231,76,60,.1)}
.icfg-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.icfg-field-full{grid-column:1/-1}
.icfg-ck{display:flex;align-items:flex-start;gap:8px;cursor:pointer;font-size:13px!important;text-transform:none!important;letter-spacing:0!important;font-weight:500!important}
.icfg-ck input{width:18px;height:18px;margin-top:1px;accent-color:var(--icfg-pri);flex-shrink:0}

/* Dimensions — 2 columns: left (fields + illustration), right (sliders) */
.icfg-dim-layout{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.icfg-dim-left{display:flex;flex-direction:column;gap:16px}
.icfg-dim-illustration{display:flex;justify-content:center;align-items:center}
.icfg-bigbag-svg{max-width:100%;width:100%;height:auto}
.icfg-bigbag-img{max-width:100%;width:100%;height:auto;border-radius:6px}
.icfg-zoom-link{display:block;position:relative;cursor:zoom-in;text-decoration:none}
.icfg-zoom-link:hover .icfg-bigbag-img{opacity:.9}
.icfg-zoom-label{display:flex;align-items:center;gap:4px;justify-content:center;margin-top:6px;font-size:11px;color:var(--icfg-muted);font-weight:600;letter-spacing:.02em}
.icfg-lightbox{position:fixed;top:0;left:0;right:0;bottom:0;z-index:10000;display:flex;align-items:center;justify-content:center}
.icfg-lightbox-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.75);cursor:pointer}
.icfg-lightbox-content{position:relative;max-width:90vw;max-height:90vh;animation:icfgPop .25s ease}
.icfg-lightbox-content img{max-width:100%;max-height:85vh;border-radius:8px;box-shadow:0 8px 40px rgba(0,0,0,.4)}
.icfg-lightbox-close{position:absolute;top:-12px;right:-12px;width:32px;height:32px;border-radius:50%;border:none;background:#fff;color:#333;font-size:20px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.2);line-height:1}
.icfg-dim-sliders{background:var(--icfg-card);border-radius:var(--icfg-radius);padding:20px;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.icfg-dim-sliders{background:var(--icfg-card);border-radius:var(--icfg-radius);padding:20px;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.icfg-slider{margin-bottom:18px}
.icfg-slider-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:5px}
.icfg-slider-name{font-size:11px;font-weight:700;color:var(--icfg-sec);text-transform:uppercase;letter-spacing:.03em}
.icfg-slider-val{font-size:12px;color:var(--icfg-muted)}
.icfg-slider-val b{display:inline-block;background:var(--icfg-pri);color:#fff;padding:2px 9px;border-radius:12px;font-size:12px}
.icfg-range{-webkit-appearance:none;width:100%;height:6px;border-radius:3px;background:var(--icfg-border);outline:none;cursor:pointer}
.icfg-range.touched{background:linear-gradient(to right,var(--icfg-pri) 0%,var(--icfg-pri) var(--pct,0%),var(--icfg-border) var(--pct,0%),var(--icfg-border) 100%)}
.icfg-range::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid var(--icfg-pri);cursor:pointer;box-shadow:0 2px 6px rgba(0,0,0,.15)}
.icfg-range::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid var(--icfg-pri);cursor:pointer;box-shadow:0 2px 6px rgba(0,0,0,.15)}
.icfg-slider-mm{display:flex;justify-content:space-between;font-size:11px;color:var(--icfg-muted);margin-top:2px}
.icfg-slider-warn{font-size:11px;color:#e74c3c;margin-top:2px;display:none}
.icfg-slider.untouched .icfg-slider-warn{display:block}

/* Contact + Summary */
.icfg-contact-layout{display:grid;grid-template-columns:1fr 280px;gap:24px;align-items:start}
.icfg-contact-form{background:var(--icfg-card);border-radius:var(--icfg-radius);padding:20px;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.icfg-summary{background:var(--icfg-card);border-radius:var(--icfg-radius);padding:20px;box-shadow:0 1px 4px rgba(0,0,0,.04);border-top:3px solid var(--icfg-pri)}
.icfg-summary h3{font-size:15px;font-weight:700;color:var(--icfg-sec);margin:0 0 12px}
.icfg-summary-img{width:100%;border-radius:6px;margin-bottom:14px}
#icfg-summary-list{font-size:12px;color:var(--icfg-text)}
.icfg-sum-row{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px solid var(--icfg-border)}
.icfg-sum-row:last-child{border-bottom:none}
.icfg-sum-key{color:var(--icfg-muted);font-size:11px}
.icfg-sum-val{font-weight:600;text-align:right;max-width:55%;word-break:break-word}

/* Nav */
.icfg-nav{display:flex;justify-content:space-between;align-items:center;margin-top:28px;gap:12px}
.icfg-btn{display:inline-flex;align-items:center;gap:6px;padding:13px 28px;border:none;border-radius:8px;font-size:14px;font-weight:700;cursor:pointer;transition:all .25s;font-family:inherit}
.icfg-btn-prev{background:var(--icfg-card);color:var(--icfg-muted);border:2px solid var(--icfg-border)}
.icfg-btn-prev:hover{color:var(--icfg-text);border-color:var(--icfg-muted)}
.icfg-btn-next{background:var(--icfg-pri);color:#fff;margin-left:auto;box-shadow:0 3px 10px rgba(243,146,0,.3)}
.icfg-btn-next:hover{transform:translateY(-1px);box-shadow:0 5px 14px rgba(243,146,0,.35)}
.icfg-btn-submit{background:var(--icfg-sec);color:#fff;margin-left:auto;box-shadow:0 3px 10px rgba(45,55,72,.25)}
.icfg-btn-submit:hover{transform:translateY(-1px);box-shadow:0 5px 14px rgba(45,55,72,.3)}
.icfg-btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}

/* Success / Loading / Toast */
.icfg-success{text-align:center;padding:50px 20px}.icfg-success-in{animation:icfgFade .4s ease}
.icfg-success-in svg{margin-bottom:20px;animation:icfgPop .4s cubic-bezier(.175,.885,.32,1.275)}
@keyframes icfgPop{from{transform:scale(0)}to{transform:scale(1)}}
.icfg-success h2{font-size:24px;color:var(--icfg-sec);margin:0 0 10px}
.icfg-success-msg{font-size:14px;color:var(--icfg-muted);line-height:1.6;max-width:420px;margin:0 auto}
.icfg-loading{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(245,246,248,.88);display:flex;align-items:center;justify-content:center;z-index:100;border-radius:var(--icfg-radius);backdrop-filter:blur(2px)}
.icfg-spinner{width:40px;height:40px;border:4px solid var(--icfg-border);border-top-color:var(--icfg-pri);border-radius:50%;animation:icfgSpin .7s linear infinite}
@keyframes icfgSpin{to{transform:rotate(360deg)}}
.icfg-toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(16px);background:#e74c3c;color:#fff;padding:10px 20px;border-radius:8px;font-size:13px;font-weight:600;z-index:9999;opacity:0;transition:all .3s;box-shadow:0 4px 14px rgba(231,76,60,.3);font-family:inherit}
.icfg-toast.vis{opacity:1;transform:translateX(-50%) translateY(0)}
.icfg-hp{position:absolute;left:-9999px;top:-9999px;opacity:0;height:0;width:0;overflow:hidden;pointer-events:none}

/* Responsive */
@media(max-width:768px){
    .icfg{padding:24px 16px}
    .icfg-progress{justify-content:flex-start;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;scroll-behavior:smooth}
    .icfg-progress::-webkit-scrollbar{display:none}
    .icfg-pstep{min-width:48px;flex-shrink:0}.icfg-pline{min-width:16px;max-width:28px;flex-shrink:0;margin-top:17px}
    .icfg-dim-layout{grid-template-columns:1fr}
    .icfg-contact-layout{grid-template-columns:1fr}.icfg-summary{order:-1}.icfg-form-grid{grid-template-columns:1fr}
}
@media(max-width:500px){
    .icfg-cols-2,.icfg-cols-3,.icfg-cols-4{grid-template-columns:1fr 1fr}
    .icfg-pstep{min-width:40px}.icfg-plabel{display:none}
    .icfg-header h3{font-size:18px}.icfg-btn{padding:11px 20px;font-size:13px}
}