:root{--ink:#151516;--paper:#f5f5f7;--panel:#fff;--muted:#6e6e73;--line:#e5e5e7;--coral:#f57b67;--cobalt:#5a6cf3;--moss:#75a67d}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Geist,"Noto Sans SC",sans-serif}
.site-shell{overflow-x:hidden;width:100%;max-width:100%}
.nav-shell{position:fixed;z-index:10;top:20px;left:50%;display:flex;width:min(1100px,calc(100% - 32px));align-items:center;justify-content:space-between;padding:12px 14px 12px 18px;border:1px solid rgba(255,255,255,.78);border-radius:999px;background:rgba(255,255,255,.72);box-shadow:0 8px 35px rgba(0,0,0,.06);backdrop-filter:blur(20px);transform:translateX(-50%)}
.brand{display:flex;align-items:center;gap:8px;color:var(--ink);font-size:14px;font-weight:700;letter-spacing:-.6px;text-decoration:none}
.brand span{width:11px;height:11px;border-radius:3px;background:var(--ink);transform:rotate(45deg)}
.nav-links{display:flex;gap:28px}
.nav-links a,.text-button{color:var(--muted);font:500 13px inherit;text-decoration:none}
.account-button,.rotation-reset{border:0;border-radius:999px;background:var(--ink);color:#fff;padding:10px 14px;font:500 12px inherit}
.hero{padding:184px 24px 92px;text-align:center}
.eyebrow,.label{margin:0;color:var(--muted);font-size:11px;font-weight:600;letter-spacing:.12em}
.hero h1{max-width:1320px;margin:18px auto 20px;font-size:clamp(44px,5.2vw,76px);letter-spacing:-.085em;line-height:.98}
.inline-boxes{display:inline-flex;gap:4px;vertical-align:middle;margin:0 8px}
.inline-boxes i{display:block;width:25px;height:25px;border-radius:7px;background:var(--coral)}
.inline-boxes i:nth-child(2){background:var(--cobalt);transform:translateY(-8px)}
.inline-boxes i:nth-child(3){background:var(--moss)}
.hero-copy{max-width:520px;margin:0 auto;color:var(--muted);font-size:16px;line-height:1.7}
.bento-grid{display:grid;grid-template-columns:repeat(12,1fr);grid-template-rows:repeat(6,92px);grid-auto-flow:dense;gap:12px;width:min(1280px,calc(100% - 48px));margin:0 auto}
.panel{border:1px solid rgba(0,0,0,.04);border-radius:28px;background:var(--panel);box-shadow:0 12px 34px rgba(0,0,0,.045)}
.preview-panel{grid-column:span 7;grid-row:span 6;position:relative;overflow:hidden;padding:28px}
.sku-panel{grid-column:span 5;grid-row:span 3;padding:24px}
.carton-panel{grid-column:span 5;grid-row:span 3;padding:24px}
.panel-topline,.compact-heading{display:flex;align-items:flex-start;justify-content:space-between}
.panel h2{margin:6px 0 0;font-size:20px;letter-spacing:-.05em}
.rotation-reset{background:#f0f0f2;color:var(--ink);padding:8px 11px}
.stage{position:relative;height:394px;perspective:1000px;cursor:grab;user-select:none}
.stage:active{cursor:grabbing}
.stage-glow{position:absolute;top:20%;left:50%;width:360px;height:250px;border-radius:50%;background:radial-gradient(circle,rgba(90,108,243,.18),rgba(245,123,103,.09) 35%,transparent 68%);filter:blur(16px);transform:translateX(-50%)}
.scene{position:absolute;top:48%;left:50%;width:280px;height:220px;transform-style:preserve-3d;transform:translate(-50%,-50%) rotateX(-19deg) rotateY(-28deg);will-change:transform}
.carton{position:absolute;width:250px;height:180px;top:0;left:15px;transform-style:preserve-3d}
.carton-face{position:absolute;width:250px;height:180px;border:1.5px solid rgba(21,21,22,.45);background:rgba(235,240,255,.055);backdrop-filter:blur(1px)}
.front{transform:translateZ(80px)}
.back{transform:rotateY(180deg) translateZ(80px)}
.right{width:160px;transform:rotateY(90deg) translateZ(170px)}
.left{width:160px;transform:rotateY(-90deg) translateZ(80px)}
.top{height:160px;transform:rotateX(90deg) translateZ(80px)}
.bottom{height:160px;transform:rotateX(-90deg) translateZ(100px)}
.items-layer{position:absolute;inset:0;transform-style:preserve-3d}
.item-cuboid{position:absolute;left:0;top:0;width:var(--w);height:var(--h);transform-style:preserve-3d;transform:translate3d(var(--x),var(--y),var(--z));transition:transform .36s cubic-bezier(.2,.7,.2,1),opacity .25s ease}
.item-face{position:absolute;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.68);border-radius:2px;background:var(--color);box-shadow:inset 0 0 18px rgba(255,255,255,.17);transform-origin:center center}
.item-front,.item-back{width:var(--w);height:var(--h)}
.item-front{transform:translateZ(var(--d-half));filter:brightness(1.04)}
.item-back{transform:rotateY(180deg) translateZ(var(--d-half));filter:brightness(.72)}
.item-right,.item-left{left:calc((var(--w) - var(--d)) / 2);width:var(--d);height:var(--h)}
.item-right{transform:rotateY(90deg) translateZ(var(--w-half));filter:brightness(.8)}
.item-left{transform:rotateY(-90deg) translateZ(var(--w-half));filter:brightness(.65)}
.item-top,.item-bottom{top:calc((var(--h) - var(--d)) / 2);width:var(--w);height:var(--d)}
.item-top{transform:rotateX(90deg) translateZ(var(--h-half));filter:brightness(1.24)}
.item-bottom{transform:rotateX(-90deg) translateZ(var(--h-half));filter:brightness(.58)}
.item-label{position:relative;color:#fff;font-size:7px;font-weight:600;letter-spacing:.02em;white-space:nowrap;transform:translateZ(1px)}
.drag-hint{position:absolute;bottom:14px;left:0;right:0;margin:0;color:#9b9b9f;text-align:center;font-size:11px}
.preview-footer{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));padding-top:15px;border-top:1px solid var(--line)}
.preview-footer div+div{padding-left:16px;border-left:1px solid var(--line)}
.preview-footer span,.carton-spec span{display:block;color:var(--muted);font-size:11px}
.preview-footer strong,.carton-spec strong{display:block;margin-top:5px;font-size:13px;letter-spacing:-.03em}
.calculating{color:#2f6a49}
.infeasible{color:#b44035}
.sku-list{max-height:180px;margin-top:14px;overflow-y:auto;padding-right:6px;scrollbar-width:thin;scrollbar-color:#c5c5c9 transparent}
.sku-list::-webkit-scrollbar{width:5px}
.sku-list::-webkit-scrollbar-thumb{border-radius:99px;background:#c5c5c9}
.sku-row{display:grid;grid-template-columns:12px minmax(0,1fr) 64px 48px 30px;align-items:center;gap:10px;padding:10px 0;border-top:1px solid var(--line)}
.sku-color{width:10px;height:10px;border-radius:50%}
.coral{background:var(--coral)}
.cobalt{background:var(--cobalt)}
.moss{background:var(--moss)}
.sku-info strong{font-size:13px}
.sku-info small{display:block;margin-top:2px;color:var(--muted);font-size:10px}
.sku-weight{color:var(--muted);font-size:10px;white-space:nowrap}
.quantity-input{width:48px;height:30px;border:1px solid #d7d7da;border-radius:8px;background:#fafafa;color:var(--ink);font:600 13px Geist,"Noto Sans SC",sans-serif;text-align:center;outline:none}
.quantity-input:focus{border-color:var(--ink);background:#fff}
.sku-remove-button{display:grid;width:30px;height:30px;place-items:center;border:0;border-radius:50%;background:#f1f1f3;color:#77777d;cursor:pointer;transition:background .2s ease,color .2s ease,transform .2s ease}.sku-remove-button span{width:10px;height:1.5px;border-radius:999px;background:currentColor}.sku-remove-button:hover{background:#ffebe9;color:#c83d34;transform:scale(1.06)}.sku-remove-button:focus-visible{outline:2px solid #c83d34;outline-offset:2px}.sku-remove-button:active{transform:scale(.94)}
.text-button{padding:2px 0;border:0;background:transparent}
.text-button:hover{color:var(--ink);cursor:pointer}
.sku-heading-actions{display:flex;align-items:center;gap:26px}.clear-list-button{color:#c83d34}.clear-list-button:hover{color:#a92d25}
.modal-backdrop{position:fixed;z-index:40;inset:0;background:rgba(21,21,22,.32);backdrop-filter:blur(10px)}
.library-modal{position:fixed;z-index:50;top:50%;left:50%;width:min(1100px,calc(100% - 36px));max-height:min(780px,calc(100vh - 48px));overflow:auto;border:1px solid rgba(255,255,255,.75);border-radius:28px;background:#f9f9fa;box-shadow:0 28px 90px rgba(0,0,0,.24);transform:translate(-50%,-50%)}
.modal-header{display:flex;align-items:flex-start;justify-content:space-between;padding:28px 30px 23px;border-bottom:1px solid var(--line)}
.modal-header h2{margin:7px 0 5px;font-size:28px;letter-spacing:-.06em}.modal-header p:not(.label){margin:0;color:var(--muted);font-size:12px}
.modal-close{border:1px solid #dbdbde;border-radius:999px;background:#fff;color:var(--ink);padding:9px 13px;font:500 12px inherit;cursor:pointer}.modal-close:hover{background:var(--ink);color:#fff}
.library-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(290px,.8fr);gap:18px;padding:20px 22px 22px}
.library-list{display:grid;align-content:start;gap:12px;max-height:580px;overflow-y:auto;padding-right:4px}
.bulk-controls{display:grid;grid-template-columns:18px 74px minmax(36px,1fr) auto auto;align-items:center;column-gap:12px;min-height:56px;padding:9px 12px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 5px 16px rgba(0,0,0,.025)}.select-all{grid-column:1 / span 2;display:grid;grid-template-columns:18px max-content;align-items:center;column-gap:8px;color:var(--ink);font-size:12px;font-weight:600;cursor:pointer}.select-all input,.library-select input{position:absolute;opacity:0;pointer-events:none}.select-all i,.library-select span{display:inline-grid;place-items:center;width:17px;height:17px;border:1px solid #c7c7cc;border-radius:5px;background:#fff;transition:background .18s ease,border-color .18s ease}.select-all i{justify-self:center}.select-all input:checked+i,.library-select input:checked+span{border-color:var(--ink);background:var(--ink);box-shadow:inset 0 0 0 4px #fff}.selection-count{grid-column:4;color:var(--muted);font-size:11px;white-space:nowrap}.bulk-import-button{grid-column:5;border:0;border-radius:999px;background:var(--ink);color:#fff;padding:9px 14px;font:600 12px inherit;white-space:nowrap;cursor:pointer;transition:transform .2s ease,opacity .2s ease}.bulk-import-button:hover:not(:disabled){transform:scale(1.03)}.bulk-import-button:disabled{cursor:default;opacity:.35}
.library-card{display:grid;grid-template-columns:74px minmax(0,1fr) auto;gap:15px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:18px;background:#fff;transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s ease}.library-card:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.06)}
.sku-library-card{grid-template-columns:18px 74px minmax(0,1fr) auto}.library-select{display:grid;place-items:center;align-self:stretch;cursor:pointer}
.product-thumb{display:flex;align-items:center;justify-content:center;width:74px;height:74px;overflow:hidden;border-radius:13px;background:linear-gradient(135deg,#e7e7e9,#f9f9fa)}.product-thumb img{width:100%;height:100%;object-fit:cover}.product-thumb span{color:#97979b;font-size:10px}
.library-main{min-width:0}.library-name{display:flex;align-items:center;gap:8px}.library-name strong{font-size:14px;letter-spacing:-.03em}.library-name span{width:9px;height:9px;flex:0 0 auto;border-radius:50%}.library-main p{margin:4px 0 0;color:var(--muted);font-size:11px}.library-specs{display:flex;gap:12px;margin-top:9px;color:#444449;font-size:11px}.library-specs b{font-weight:600}
.library-actions{display:flex;align-items:center;justify-content:flex-end;gap:7px;min-width:max-content;flex-wrap:nowrap}.add-library-item,.form-submit{border:0;border-radius:999px;background:var(--ink);color:#fff;padding:10px 13px;font:600 12px inherit;white-space:nowrap;cursor:pointer;transition:transform .25s ease}.add-library-item:hover,.form-submit:hover{transform:scale(1.03)}.add-library-item.added{background:#e7e7e9;color:var(--ink)}
.card-icon-button{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:32px;padding:0 10px;border:1px solid #e1e1e4;border-radius:999px;background:#fff;color:#5f5f64;font:600 12px Geist,"Noto Sans SC",sans-serif;white-space:nowrap;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease}.card-icon-button:hover{border-color:#c9c9cd;background:#f2f2f4;color:var(--ink)}.card-icon-button.remove:hover{border-color:#f0b9b1;background:#fff4f2;color:#b54032}
.manual-form-panel{align-self:start;padding:20px;border:1px solid var(--line);border-radius:20px;background:#fff;color:var(--ink);box-shadow:0 8px 22px rgba(0,0,0,.035)}.form-heading h3{margin:7px 0 18px;font-size:18px;letter-spacing:-.05em}.manual-form-panel .label{color:var(--muted)}
.library-form{display:grid;gap:11px}.library-form label{display:grid;gap:5px;color:var(--muted);font-size:11px}.library-form input{width:100%;min-width:0;border:1px solid #dedee2;border-radius:10px;background:#f7f7f8;color:var(--ink);padding:9px 10px;font:500 12px Geist,"Noto Sans SC",sans-serif;outline:none;transition:border-color .2s ease,background .2s ease}.library-form input:focus{border-color:#9a9a9f;background:#fff}.library-form input[type="color"]{height:35px;padding:4px;cursor:pointer}.library-form input[type="file"]{font-size:10px}.library-form input::file-selector-button{margin-right:8px;border:0;border-radius:5px;background:#e3e3e7;color:var(--ink);padding:4px 7px;font:500 10px inherit}.dimension-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.form-submit{margin-top:5px;background:var(--ink);color:#fff;width:100%}
.carton-library-list .library-card{grid-template-columns:48px minmax(0,1fr) auto}.carton-mark{display:grid;place-items:center;width:48px;height:48px;border-radius:12px;background:#ececf0;color:var(--ink);font-size:17px;font-weight:700}.carton-library-list .library-specs{margin-top:7px}
body.modal-open{overflow:hidden}
.carton-options{display:grid;gap:5px;margin-top:13px}
.carton-option{display:flex;align-items:center;justify-content:space-between;padding:7px 0;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;color:var(--ink);font-family:inherit}
.carton-option b{font-size:12px}
.carton-option small{display:block;margin-top:2px;color:var(--muted);font-size:10px}
.carton-option i{width:15px;height:15px;border:1px solid #c9c9cc;border-radius:50%}
.carton-option.active i{border:4px solid var(--ink)}
.carton-spec{display:flex;align-items:center;justify-content:space-between;margin-top:10px}
.carton-spec strong{margin:0;font-size:12px}
.intro-band{padding:170px 24px}
.intro-line{max-width:1050px;margin:0 auto;font-size:clamp(30px,4.1vw,60px);letter-spacing:-.07em;line-height:1.1;text-align:center}
.details-section{display:grid;grid-template-columns:4fr 6fr;gap:10%;width:min(1160px,calc(100% - 48px));margin:0 auto;padding:0 0 180px}
.details-title h2{margin:14px 0;font-size:clamp(40px,4.5vw,64px);letter-spacing:-.075em;line-height:1.02}
.feature-stack{display:grid;gap:12px}
.feature-card{position:relative;display:grid;grid-template-columns:40px 1fr 120px;align-items:center;gap:16px;min-height:155px;padding:24px;overflow:hidden;border-radius:22px;background:#e9e9eb;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.feature-card:hover{transform:scale(1.025)}
.feature-card>span{font-size:12px;color:var(--muted)}
.feature-card h3{margin:0;font-size:18px;letter-spacing:-.04em}
.feature-card p{max-width:310px;margin:6px 0 0;color:var(--muted);font-size:12px;line-height:1.55}
.feature-art{height:88px;border-radius:16px;background-color:#151516}
.art-grid{background-image:linear-gradient(90deg,transparent 48%,#fff 49%,#fff 51%,transparent 52%),linear-gradient(transparent 48%,#fff 49%,#fff 51%,transparent 52%);background-size:28px 28px}
.art-bars{background:repeating-linear-gradient(90deg,#151516 0 20px,#6676f1 20px 38px,#151516 38px 55px,#f17d6c 55px 72px)}
.art-cube{background:linear-gradient(135deg,#151516 20%,#78a67d 20% 48%,#fff 48% 51%,#151516 51%)}
.action-section{margin:0 16px;padding:132px 24px;text-align:center;border-radius:34px 34px 0 0;background:var(--ink);color:#fff}
.action-section .label{color:#98989d}
.action-section h2{margin:15px 0 26px;font-size:clamp(48px,6vw,86px);line-height:.98;letter-spacing:-.085em}
.run-button{padding:15px 17px 15px 22px;border:0;border-radius:999px;background:#fff;color:var(--ink);font:600 14px inherit;transition:transform .3s ease}
.run-button:hover{transform:scale(1.04)}
.run-button span{margin-left:14px;font-size:18px}
.action-note{color:#98989d;font-size:12px}
footer{display:flex;align-items:center;justify-content:space-between;padding:28px 42px;background:var(--ink);color:#98989d;font-size:11px}
footer .brand{color:#fff}
footer .brand span{background:#fff}
@media(max-width:840px){.nav-links{display:none}
.hero{padding-top:145px}
.bento-grid{display:flex;flex-direction:column;width:calc(100% - 28px)}
.preview-panel{order:0}
.sku-panel{order:1}
.carton-panel{order:2}
.stage{height:340px}
.preview-footer{grid-template-columns:repeat(3,1fr);gap:14px}
.preview-footer div+div{padding-left:8px}
.details-section{grid-template-columns:1fr;padding-bottom:110px}
.feature-card{grid-template-columns:32px 1fr}
.feature-art{display:none}
.intro-band{padding:110px 22px}
.action-section{margin:0;padding:96px 20px}
footer{padding:24px;gap:15px;flex-wrap:wrap}
.library-modal{width:calc(100% - 24px);max-height:calc(100vh - 24px);border-radius:22px}.modal-header{padding:21px 20px 17px}.modal-header h2{font-size:24px}.library-layout{grid-template-columns:1fr;padding:14px}.library-list{max-height:none}.manual-form-panel{padding:18px}
}
@media(max-width:560px){.bulk-controls{grid-template-columns:18px minmax(0,1fr) auto;gap:8px}.select-all{grid-column:1 / span 2}.selection-count{grid-column:2}.bulk-import-button{grid-column:3}.sku-library-card{grid-template-columns:18px 54px minmax(0,1fr)}.sku-library-card .product-thumb{width:54px;height:54px}.sku-library-card .library-actions{grid-column:2 / -1;justify-content:flex-start}.sku-library-card .library-main{padding-bottom:3px}}
@media(max-width:480px){.account-button{font-size:10px}
.hero h1{font-size:43px}
.inline-boxes i{width:18px;height:18px}
.preview-panel{padding:19px}
.stage{height:300px}
.preview-footer{gap:7px}
.preview-footer div+div{padding-left:8px}
.preview-footer strong{font-size:12px}
.sku-panel,.carton-panel{padding:19px}
.preview-footer span{font-size:9px}
footer{justify-content:center}
}