:root{--bg:#070908;--bg2:#0d100d;--panel:#0d110f;--panel2:#141816;--line:#294126;--line2:#3a2b4e;--cyan:#7DFF00;--cyan2:#5EDB00;--purple:#8E2DE2;--purple2:#B02CFF;--text:#f4f5f4;--muted:#9aa69d;--ok:#7DFF00;--warn:#ffc857;--danger:#ff657d;--shadow:0 12px 32px rgba(0,0,0,.28)}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{font-family:Inter,Segoe UI,Arial,sans-serif;background:#070807;color:var(--text);overflow:hidden}button,input,select{font:inherit}.app-shell{height:100%;display:grid;grid-template-rows:78px 1fr 28px;background:radial-gradient(circle at 50% 0,#171d14 0,#0b0d0c 44%,#070807 100%)}.topbar{display:grid;grid-template-columns:minmax(350px,1fr) auto minmax(230px,.7fr);align-items:center;border-bottom:1px solid #31551f;background:rgba(7,9,8,.97);padding:0 18px;gap:18px}.brand-wrap{display:flex;align-items:center;gap:12px;min-width:0}.brand-mark{width:48px;height:48px;border:2px solid var(--cyan);border-radius:13px;display:grid;place-items:center;font-weight:1000;font-style:italic;color:#fff;background:linear-gradient(145deg,#0b4160,#041927);box-shadow:0 0 22px rgba(125,255,0,.25) inset,0 0 18px rgba(125,255,0,.22)}.brand-mark.big{width:66px;height:66px;margin:auto;font-size:24px}.brand-copy{display:flex;flex-direction:column;min-width:0}.brand-copy strong{font-size:23px;letter-spacing:-.5px;white-space:nowrap}.brand-copy strong span{color:var(--cyan)}.brand-copy small{font-size:9px;color:#8bbad0;letter-spacing:2px;white-space:nowrap}.version-pill{font-size:10px;color:#6ef0ff;border:1px solid var(--cyan2);padding:5px 8px;border-radius:999px}.topnav{display:flex;gap:8px}.nav-btn{border:1px solid transparent;background:transparent;color:#c0d7e4;padding:11px 18px;border-radius:10px;cursor:pointer}.nav-btn.active{border-color:var(--cyan);color:white;box-shadow:0 0 14px rgba(125,255,0,.22)}.nav-btn:disabled{opacity:.35;cursor:not-allowed}.account-box{justify-self:end;display:flex;align-items:center;gap:10px;border:1px solid #49345f;border-radius:10px;padding:9px 13px;background:#11100f}.account-dot{width:31px;height:31px;border-radius:50%;border:1px solid var(--cyan);position:relative}.account-dot:after{content:'◯';position:absolute;inset:0;display:grid;place-items:center;color:var(--cyan)}.account-box div{display:flex;flex-direction:column}.account-box small{font-size:10px;color:var(--muted);margin-top:2px}.workspace{min-height:0;display:grid;grid-template-columns:315px minmax(0,1fr) 300px;gap:9px;padding:9px}.panel{min-height:0;overflow:auto;background:rgba(10,12,11,.97);border:1px solid #365525;border-radius:11px;padding:8px}.module,.status-card,.session-card{border:1px solid #365525;border-radius:10px;background:linear-gradient(180deg,rgba(19,24,20,.98),rgba(9,11,10,.99));padding:11px;margin-bottom:8px}.module h2,.status-card h3{margin:0;font-size:13px;letter-spacing:.2px}.module h2{display:flex;gap:8px;align-items:center;margin-bottom:10px}.ico,.cube{color:var(--cyan);font-size:17px}.dropzone{height:80px;border:1px dashed #1b7792;border-radius:9px;display:grid;grid-template-columns:30px 1fr;grid-template-rows:1fr 1fr;align-items:center;padding:9px 12px;cursor:pointer;background:#0b0e0c}.dropzone.drag{border-color:var(--cyan);background:#172014}.drop-icon{grid-row:1/3;font-size:27px;color:var(--cyan)}.dropzone b{align-self:end}.dropzone small{align-self:start;color:var(--muted);font-size:10px}.control-row{margin-top:10px}.control-row.compact{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:11px}.color-pick{display:flex;gap:5px}.color-pick input[type=color]{width:34px;height:34px;min-width:34px;max-width:34px;flex:0 0 34px;padding:2px;border:1px solid #276077;border-radius:5px;background:#03111d;aspect-ratio:1/1}.color-pick input[type=text],#targetHex{width:84px}.tool-btn{margin-top:8px;width:100%;border:1px solid var(--purple);background:#171020;color:#f5efff;border-radius:7px;padding:8px;cursor:pointer}.slider-label{display:flex;justify-content:space-between;font-size:11px;color:#d5edf8;margin-top:8px}.slider-label:first-of-type{margin-top:0}.slider-label output{color:#fff;font-weight:700}input[type=range]{width:100%;accent-color:var(--cyan)}input[type=number],input[type=text],select,#targetHex,.access-card input{background:#0b0d0c;border:1px solid #3c4c37;color:white;border-radius:6px;padding:7px 8px;outline:none}.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:8px}.two-cols label{font-size:10px;color:#a9cbd9}.two-cols label>div{display:flex;align-items:center;gap:5px;margin-top:5px}.two-cols input,.two-cols select{width:100%;margin-top:5px}.two-cols label>div input{margin-top:0}.mini-note,.fineprint{font-size:9px;color:#7fa7bb;margin-top:8px}.primary-action{width:100%;min-height:48px;border-radius:9px;border:1px solid var(--cyan);background:linear-gradient(180deg,#64d600,#2e7f00);color:#fff;font-weight:900;letter-spacing:.5px;box-shadow:0 0 14px rgba(125,255,0,.18);cursor:pointer}.primary-action:disabled,.download-btn:disabled{opacity:.35;cursor:not-allowed}.spinner{display:none;width:14px;height:14px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;margin-right:8px}.loading .spinner{display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.studio{min-width:0;min-height:0;border:1px solid #365525;border-radius:11px;background:#090b0a;display:grid;grid-template-rows:48px minmax(0,1fr) 74px;overflow:hidden}.studio-toolbar{display:flex;align-items:center;justify-content:space-between;padding:0 10px;background:#101311;border-bottom:1px solid #30462a}.view-tabs,.toolbar-actions,.bg-switch{display:flex;gap:6px;align-items:center}.view-tabs button,.toolbar-actions>button,.bg-switch button{border:1px solid #3a4837;background:#0d100e;color:#b5d1de;border-radius:7px;padding:8px 11px;cursor:pointer}.view-tabs button.active,.bg-switch button.active,#compareBtn.active{border-color:var(--cyan);color:white;box-shadow:0 0 12px rgba(125,255,0,.18)}.view-tabs button:disabled{opacity:.35}.stage{position:relative;min-width:0;min-height:0;display:grid;place-items:center;overflow:hidden;background:#111}.stage.checker{background-color:#d7dde3;background-image:linear-gradient(45deg,#c5ccd3 25%,transparent 25%),linear-gradient(-45deg,#c5ccd3 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#c5ccd3 75%),linear-gradient(-45deg,transparent 75%,#c5ccd3 75%);background-size:24px 24px;background-position:0 0,0 12px,12px -12px,-12px 0}.stage.white{background:#fff}.stage.black{background:#080b0e}.stage canvas{max-width:calc(100% - 54px);max-height:calc(100% - 54px);box-shadow:0 24px 70px rgba(0,0,0,.28)}.stage canvas.picker{cursor:crosshair}.empty-state{position:absolute;text-align:center;color:#6b8fa3;display:flex;flex-direction:column;align-items:center}.empty-state.hidden{display:none}.empty-logo{width:70px;height:70px;border:1px solid #7d97a2;background:rgba(255,255,255,.18);display:grid;place-items:center;font-size:20px;font-weight:900;margin-bottom:10px}.eyedropper-hint{position:absolute;top:18px;left:50%;transform:translateX(-50%);background:#1b1028;color:#f2e8ff;border:1px solid var(--cyan);padding:8px 12px;border-radius:999px;font-size:11px;display:none}.eyedropper-hint.show{display:block}.bottom-strip{display:flex;align-items:center;gap:8px;padding:8px;background:#0d100e;border-top:1px solid #30462a}.status-chip{margin-right:auto;border:1px solid #13546b;border-radius:999px;padding:8px 12px;font-size:10px;display:flex;gap:7px;align-items:center}.status-chip i{width:7px;height:7px;background:var(--ok);border-radius:50%;box-shadow:0 0 8px var(--ok)}.step{width:86px;border:1px solid #12465b;border-radius:8px;padding:7px 8px;display:flex;gap:8px;align-items:center;color:#6f9aae;font-size:10px}.step b{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:#1b1028}.step.active{border-color:var(--cyan);color:#ffffff}.card-title{display:flex;align-items:center;gap:9px;border-bottom:1px solid #17465c;padding-bottom:9px;margin-bottom:9px}.card-title>div{flex:1}.card-title h3{font-size:15px}.card-title small{color:var(--purple2);font-size:10px}.online{font-size:10px;color:var(--ok)}.online i{display:inline-block;width:8px;height:8px;background:var(--ok);border-radius:50%;margin-right:4px}.status-card dl{margin:0}.status-card dl div{display:flex;justify-content:space-between;border-bottom:1px solid rgba(65,128,151,.16);padding:7px 0;font-size:11px}.status-card dt{color:#8bb0c1}.status-card dd{margin:0;font-weight:800}.success-box{border:1px solid var(--cyan);background:rgba(125,255,0,.08);color:#a8ff63;border-radius:8px;padding:9px;font-size:11px;margin-top:10px}.success-box small{color:#b6dce6}.status-card p{font-size:10px;color:#9bbdca;line-height:1.45}.inspection{display:flex;justify-content:space-between;border-top:1px solid rgba(92,150,171,.15);padding:7px 0;font-size:10px}.download-btn{width:100%;border:1px solid var(--cyan);background:linear-gradient(180deg,#68df00,#2e8200);color:white;padding:12px;border-radius:8px;font-weight:900;cursor:pointer}.session-card h4{margin:0 0 8px}.session-card b{font-size:12px}.session-card p,.session-card span{font-size:10px;color:#8bb0c1}.access-overlay{position:absolute;inset:0;background:rgba(0,8,14,.88);display:grid;place-items:center;z-index:10}.access-overlay.hidden{display:none}.access-card{width:min(390px,92vw);border:1px solid var(--cyan);background:#101210;border-radius:14px;padding:24px;text-align:center;box-shadow:0 0 35px rgba(125,255,0,.18)}.access-card h1{margin:12px 0 5px}.access-card p{color:#9fc3d2}.access-card form{display:grid;gap:8px}.access-card form.hidden{display:none}.access-card button{border:1px solid var(--cyan);background:#5e1592;color:#fff;border-radius:7px;padding:10px;font-weight:800}footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #294126;padding:0 12px;background:#070807;color:#577f92;font-size:9px}@media(max-width:1150px){.workspace{grid-template-columns:285px 1fr}.right-panel{display:none}.topbar{grid-template-columns:1fr auto}.topnav{display:none}}@media(max-width:780px){body{overflow:auto}.app-shell{height:auto;min-height:100%;grid-template-rows:auto auto 28px}.topbar{grid-template-columns:1fr;padding:10px}.account-box{justify-self:stretch}.workspace{grid-template-columns:1fr;grid-template-rows:auto 650px}.studio{min-height:650px}.left-panel{overflow:visible}footer{display:none}}

.brand-logo{width:92px;height:42px;object-fit:contain;filter:drop-shadow(0 0 8px rgba(125,255,0,.25))}.topbar{grid-template-columns:minmax(370px,1fr) minmax(220px,.55fr)}.brand-copy strong span{color:var(--purple2)}.version-pill{border-color:var(--purple);color:#dba7ff}.tool-btn.active{border-color:var(--purple2);box-shadow:0 0 14px rgba(176,44,255,.28);background:#21102f}.primary-action,.download-btn{border-color:var(--cyan);box-shadow:0 0 16px rgba(125,255,0,.18)}.view-tabs button.active,.bg-switch button.active,#compareBtn.active{border-color:var(--cyan);box-shadow:0 0 12px rgba(125,255,0,.2)}.compare-handle{position:absolute;z-index:4;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;transform:translate(-50%,-50%);background:#171a18;border:2px solid var(--cyan);color:#fff;box-shadow:0 0 0 3px rgba(0,0,0,.35),0 0 16px rgba(125,255,0,.55);cursor:ew-resize;user-select:none}.compare-handle.hidden{display:none}.compare-handle span{font-size:16px;font-weight:900}.empty-brand{width:150px;max-height:62px;object-fit:contain;filter:drop-shadow(0 0 9px rgba(125,255,0,.25));margin-bottom:8px}.access-logo{width:190px;max-height:70px;object-fit:contain;margin:auto;filter:drop-shadow(0 0 10px rgba(125,255,0,.2))}.session-card{display:none}.step.active{border-color:var(--purple2);box-shadow:inset 0 0 0 1px rgba(176,44,255,.18)}.step.active b{background:#371448;color:#fff}.card-title .cube,.module .ico{color:var(--cyan)}

.brand-title-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.brand-copy strong{font-size:23px;line-height:1}
.brand-copy small{margin-top:4px;font-size:9px;color:#7fa7bb;letter-spacing:2px;white-space:nowrap}
.version-pill{display:inline-flex;align-items:center;justify-content:center;font-size:10px;border:1px solid var(--purple);color:#dba7ff;padding:5px 8px;border-radius:999px;line-height:1}
.stage.empty-mode,.stage.checker.empty-mode,.stage.white.empty-mode,.stage.black.empty-mode{background:radial-gradient(circle at 50% 52%, rgba(98,34,149,.24) 0, rgba(16,18,17,.96) 34%, rgba(7,8,7,1) 100%) !important}
.stage.empty-mode canvas{display:none}
.empty-state{position:absolute;inset:0;display:grid;place-items:center;padding:32px;text-align:center;color:#e7ece8}
.empty-state.hidden{display:none}
.empty-card{width:min(560px,72vw);padding:34px 34px 30px;border-radius:28px;border:1px solid rgba(176,44,255,.28);background:linear-gradient(180deg,rgba(24,18,28,.92),rgba(12,12,14,.96));box-shadow:0 28px 80px rgba(0,0,0,.45),0 0 35px rgba(176,44,255,.12),inset 0 1px 0 rgba(255,255,255,.04);backdrop-filter:blur(10px)}
.empty-brand-line{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:16px}
.empty-brand{width:168px;max-height:56px;object-fit:contain;filter:drop-shadow(0 0 10px rgba(125,255,0,.14));margin:0}
.empty-lite-tag{display:inline-flex;align-items:center;justify-content:center;padding:6px 10px;border-radius:999px;border:1px solid var(--purple2);background:rgba(122,33,198,.15);color:#e4c9ff;font-size:11px;font-weight:800;letter-spacing:.5px;text-transform:uppercase}
.empty-state b{display:block;font-size:20px;line-height:1.2;margin:0 0 10px;color:#ffffff}
.empty-state span{display:block;max-width:430px;margin:0 auto;color:#b3bdb7;font-size:15px;line-height:1.65}
.empty-upload-btn{margin-top:22px;min-width:220px;min-height:48px;border-radius:999px;border:1px solid var(--cyan);background:linear-gradient(180deg,#7dff00,#419b00);color:#071006;font-weight:900;letter-spacing:.2px;box-shadow:0 0 18px rgba(125,255,0,.18);cursor:pointer}
.empty-upload-btn:hover{filter:brightness(1.03)}

.lite-note-card{background:linear-gradient(180deg,rgba(16,24,14,.98),rgba(9,13,10,.99))}
.lite-facts{margin:0;padding-left:18px;color:#b8c7bc;font-size:11px;line-height:1.55}.lite-facts li+li{margin-top:7px}.lite-facts b{color:#fff}.dpi-grid{display:grid;gap:8px;margin-top:8px}.dpi-row{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(92,150,171,.15);padding-top:8px;font-size:11px}.dpi-row span{color:#9bbdca}.dpi-row b{color:#fff;font-size:12px}

/* v0.2.6 UX audit refinements */
.topbar{grid-template-columns:minmax(390px,1fr) auto auto;gap:12px}
.top-actions{display:flex;align-items:center;gap:8px;justify-self:end}
.icon-action{width:38px;height:38px;border-radius:10px;border:1px solid #365525;background:#0d100e;color:#d9e4dc;font-weight:900;font-size:20px;cursor:pointer;display:grid;place-items:center;transition:.15s ease}
.icon-action:hover{border-color:var(--cyan);color:#fff;box-shadow:0 0 12px rgba(125,255,0,.16)}

.pro-card{margin-top:2px;background:linear-gradient(180deg,rgba(25,17,31,.97),rgba(12,11,13,.99));border-color:#4d2f63}
.pro-card h2{margin-bottom:7px}.pro-card p{font-size:10px;line-height:1.45;color:#b8b1bd;margin:0 0 10px}
.pro-badge{display:inline-flex;padding:4px 8px;border-radius:999px;background:rgba(142,45,226,.14);border:1px solid var(--purple);color:#e6c9ff;font-size:9px;font-weight:900;letter-spacing:.6px;margin-bottom:8px;text-transform:uppercase}
.pro-link-btn{width:100%;border:1px solid var(--purple2);background:linear-gradient(180deg,#5b1a85,#381049);color:#fff;border-radius:8px;padding:10px 9px;font-size:10px;font-weight:900;letter-spacing:.35px;cursor:pointer;box-shadow:0 0 12px rgba(176,44,255,.14)}
.pro-link-btn:hover{filter:brightness(1.08)}

.compact-status .card-title{margin-bottom:5px}.status-summary{display:grid;gap:0}.status-summary>div{display:flex;align-items:center;justify-content:space-between;padding:7px 0;border-bottom:1px solid rgba(92,150,171,.13);font-size:10px}.status-summary>div:last-child{border-bottom:0}.status-summary span{color:#8fb2a0}.status-summary b{color:#fff;font-size:11px;text-align:right}
.primary-print{display:flex;align-items:center;justify-content:space-between;padding:8px 0 10px;border-bottom:1px solid rgba(92,150,171,.14)}.primary-print span{color:#9bbdca;font-size:11px}.primary-print b{color:#fff;font-size:13px}
.print-card details{margin-top:6px}.print-card summary{cursor:pointer;color:#c9d6cf;font-size:10px;padding:5px 0;user-select:none}.print-card summary:hover{color:#fff}.compact-dpi{margin-top:2px}
.step{width:auto;min-width:90px}.step:nth-of-type(3){min-width:112px}.step:nth-of-type(4){min-width:118px}

.help-overlay{position:absolute;inset:0;z-index:20;background:rgba(3,5,4,.82);display:grid;place-items:center;padding:22px;backdrop-filter:blur(6px)}.help-overlay.hidden{display:none}
.help-card{width:min(720px,92vw);border-radius:18px;border:1px solid #4d2f63;background:linear-gradient(180deg,#17141a,#0d0f0e);box-shadow:0 30px 90px rgba(0,0,0,.55),0 0 28px rgba(142,45,226,.12);padding:20px}
.help-head{display:flex;align-items:flex-start;justify-content:space-between;gap:15px;padding-bottom:14px;border-bottom:1px solid #263229}.help-kicker{display:block;color:var(--cyan);font-size:9px;font-weight:900;letter-spacing:1.4px;margin-bottom:5px}.help-head h2{margin:0;font-size:20px}.help-head button{width:36px;height:36px;border-radius:9px;border:1px solid #465247;background:#0c0e0d;color:#fff;font-size:22px;cursor:pointer}.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.help-grid>div{padding:12px;border-radius:10px;border:1px solid #28372a;background:#0d120e}.help-grid b{display:block;color:#fff;font-size:12px;margin-bottom:5px}.help-grid span{display:block;color:#aebbb2;font-size:10px;line-height:1.5}.help-note{margin-top:12px;border:1px solid rgba(125,255,0,.28);background:rgba(125,255,0,.06);color:#c7d9ca;border-radius:9px;padding:10px;font-size:10px}

@media(max-width:1150px){.topbar{grid-template-columns:1fr auto auto}.top-actions{display:flex}}
@media(max-width:780px){.topbar{grid-template-columns:1fr auto}.top-actions{grid-column:2}.account-box{grid-column:1/-1}.help-grid{grid-template-columns:1fr}}

.zoom-readout{display:inline-flex;align-items:center;justify-content:center;min-width:78px;height:34px;padding:0 10px;border:1px solid #3a4837;border-radius:7px;color:#b9c8be;background:#0d100e;font-size:11px;font-weight:700}.stage canvas{transition:transform .08s ease-out;will-change:transform}.stage canvas.panning{cursor:grabbing}.stage:not(.empty-mode){overscroll-behavior:contain}

.stage canvas{max-width:none!important;max-height:none!important;image-rendering:auto;backface-visibility:hidden}

/* v0.2.9 final-candidate refinements */
.loaded-thumb{display:flex;align-items:center;gap:9px;margin-top:8px;padding:7px;border:1px solid #2f4630;border-radius:8px;background:#0a0d0b;min-width:0}
.loaded-thumb.hidden{display:none}
.loaded-thumb img{width:58px;height:58px;object-fit:contain;border-radius:6px;background:#151817;border:1px solid #344737}
.loaded-thumb div{min-width:0;display:flex;flex-direction:column;gap:4px}
.loaded-thumb b{font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:165px}
.loaded-thumb small{font-size:9px;color:#8ca69a}
.nav-hint{display:inline-flex;align-items:center;min-height:30px;padding:0 9px;border:1px solid #30432e;border-radius:999px;background:#0b0e0c;color:#9db1a2;font-size:9px;white-space:nowrap}
.nav-hint.hidden{display:none}
.stage canvas{touch-action:none;user-select:none;-webkit-user-select:none}
.stage canvas.zoomed{cursor:grab}
.stage canvas.panning{cursor:grabbing!important}

/* v0.2.10 final UI cleanup */
.brand-logo{width:150px!important;height:56px!important;object-fit:contain;flex:0 0 auto}
.brand-wrap{gap:10px}
.empty-brand-line{display:flex!important;flex-direction:column;align-items:center;justify-content:center;gap:8px;margin-bottom:16px;width:100%}
.empty-brand{width:150px!important;height:56px!important;max-height:56px!important;object-fit:contain;margin:0 auto!important}
.empty-lite-tag{margin:0 auto}
.image-loader{min-height:82px;border:1px dashed #1b7792;border-radius:9px;display:block;padding:8px 10px;cursor:pointer;background:#0b0e0c;transition:.15s ease}
.image-loader:hover,.image-loader.drag{border-color:var(--cyan);background:#11160f}
.loader-empty{min-height:64px;display:grid;grid-template-columns:30px 1fr;align-items:center}
.loader-empty.hidden,.loader-loaded.hidden{display:none}
.loader-empty .drop-icon{font-size:27px;color:var(--cyan)}
.loader-empty div{display:flex;flex-direction:column;gap:3px;min-width:0}
.loader-empty b{font-size:14px;color:#fff}.loader-empty small{font-size:10px;color:var(--muted)}
.loader-loaded{min-height:64px;display:grid;grid-template-columns:58px 1fr;gap:9px;align-items:center}
.loader-loaded img{width:58px;height:58px;object-fit:contain;border-radius:6px;background:#151817;border:1px solid #344737}
.loader-copy{display:flex;flex-direction:column;gap:3px;min-width:0}
.loader-copy b{font-size:10px;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:170px}
.loader-copy small{font-size:9px;color:#8ca69a}.loader-copy span{font-size:9px;color:var(--cyan);font-weight:800;margin-top:2px;text-transform:uppercase;letter-spacing:.35px}
.loaded-thumb{display:none!important}


/* v0.2.11 — tablet responsive pass
   Target: practical work use from ~768 CSS px upward.
   Breakpoints are content-driven, not tied to a specific device model. */

@media (max-width: 1180px) and (min-width: 901px){
  html,body,#app{height:auto;min-height:100%}
  body{overflow:auto}
  .app-shell{height:auto;min-height:100vh;grid-template-rows:auto auto 28px}
  .topbar{
    min-height:72px;
    grid-template-columns:minmax(360px,1fr) auto auto;
    padding:8px 12px;
    position:sticky;top:0;z-index:12
  }
  .brand-logo{width:132px!important;height:50px!important}
  .brand-copy strong{font-size:20px}
  .brand-copy small{font-size:8px;letter-spacing:1.4px}
  .account-box{padding:7px 10px}
  .workspace{
    grid-template-columns:260px minmax(0,1fr);
    grid-template-rows:minmax(620px,calc(100vh - 120px)) auto;
    align-items:stretch;
    gap:8px
  }
  .left-panel{grid-column:1;grid-row:1}
  .studio{grid-column:2;grid-row:1;min-height:620px}
  .right-panel{
    display:grid!important;
    grid-column:1/-1;grid-row:2;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:8px;
    overflow:visible
  }
  .right-panel .status-card{margin:0;min-width:0}
  .right-panel .card-title h3{font-size:13px}
  .right-panel .status-card p,.right-panel .fineprint{font-size:9px}
  .module{padding:9px}
  .bottom-strip{flex-wrap:wrap}
  .step{min-width:82px}
  .nav-hint{display:none!important}
}

@media (max-width: 900px) and (min-width: 768px){
  html,body,#app{height:auto;min-height:100%}
  body{overflow:auto}
  .app-shell{height:auto;min-height:100vh;grid-template-rows:auto auto 28px}
  .topbar{
    grid-template-columns:minmax(0,1fr) auto;
    grid-auto-rows:auto;
    padding:8px 10px;
    gap:8px;
    position:sticky;top:0;z-index:12
  }
  .brand-wrap{min-width:0}
  .brand-logo{width:118px!important;height:46px!important}
  .brand-copy strong{font-size:18px}
  .brand-copy small{font-size:7.5px;letter-spacing:1.2px}
  .version-pill{font-size:8px;padding:4px 6px}
  .top-actions{justify-self:end}
  .account-box{
    grid-column:1/-1;
    justify-self:stretch;
    padding:6px 10px;
    flex-direction:row
  }
  .workspace{
    grid-template-columns:1fr;
    grid-template-rows:auto minmax(580px,70vh) auto;
    gap:8px;
    padding:8px
  }
  .left-panel{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:8px;
    overflow:visible
  }
  .left-panel>.module,.left-panel>.pro-card{margin:0}
  .left-panel>.primary-action{grid-column:1/-1}
  .studio{min-height:580px}
  .right-panel{
    display:grid!important;
    grid-template-columns:1fr 1fr;
    gap:8px;
    overflow:visible
  }
  .right-panel .status-card{margin:0}
  .studio-toolbar{gap:6px;flex-wrap:wrap;min-height:52px}
  .toolbar-actions{margin-left:auto}
  .nav-hint{display:none!important}
  .bottom-strip{flex-wrap:wrap;height:auto;min-height:74px}
  .status-chip{width:100%;margin-right:0}
  .step{flex:1;min-width:120px}
  .empty-card{width:min(560px,88vw)}
}

/* Below tablet width we keep a fallback layout, but BG Zero Lite is not optimized
   as a production workspace for small phones. */
@media (max-width: 767px){
  .nav-hint{display:none!important}
}

.manual-module{border-color:rgba(128,255,0,.16)}
.manual-mode-row,.history-row{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:7px 0 10px}
.manual-mode,.history-btn{min-height:36px;border:1px solid rgba(255,255,255,.09);border-radius:9px;background:#111216;color:#c9cad0;font-size:10px;font-weight:900;letter-spacing:.5px;cursor:pointer;transition:.18s ease}
.manual-mode:hover:not(:disabled),.history-btn:hover:not(:disabled){border-color:rgba(128,255,0,.35);color:#fff}
.manual-mode.active:not(:disabled){background:rgba(128,255,0,.11);border-color:rgba(128,255,0,.45);color:#80ff00}
#restoreBtn.active:not(:disabled){background:rgba(127,0,255,.14);border-color:rgba(160,90,255,.55);color:#c7a4ff}
.manual-mode:disabled,.history-btn:disabled{opacity:.38;cursor:not-allowed}
.manual-note{font-size:9px!important;line-height:1.35;color:#858893!important;margin:5px 0 0!important}
canvas.brush-active{cursor:crosshair!important}


/* BG Zero Pro v1.3.0 — herramientas Pro sobre interfaz Lite */
.tool-kind-row{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:0 0 8px}
.tool-kind{min-height:34px;border:1px solid rgba(255,255,255,.09);border-radius:9px;background:#0c0f0d;color:#aeb8b1;font-size:10px;font-weight:900;letter-spacing:.45px;cursor:pointer}
.tool-kind.active:not(:disabled){border-color:rgba(125,255,0,.5);background:rgba(125,255,0,.09);color:#80ff00;box-shadow:inset 0 0 12px rgba(125,255,0,.06)}
.tool-kind:disabled{opacity:.38;cursor:not-allowed}
#brushControls.tool-disabled{opacity:.42;pointer-events:none}
canvas.lasso-active{cursor:crosshair!important}
#compareCanvas{position:absolute;z-index:3;pointer-events:none;display:none;box-shadow:none!important}
#compareCanvas.show{display:block}
.compare-divider{position:absolute;z-index:8;width:18px;transform:translateX(-9px);background:transparent;cursor:ew-resize;touch-action:none;pointer-events:auto}.compare-divider:before{content:'';position:absolute;left:8px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,#80ff00,#b02cff);box-shadow:0 0 10px rgba(125,255,0,.45)}.compare-divider:after{content:'↔';position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#111;border:2px solid #80ff00;color:#fff;font-weight:900;box-shadow:0 0 0 3px rgba(0,0,0,.35),0 0 14px rgba(125,255,0,.35)}
.compare-divider.hidden{display:none}
.export-format-row{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:8px 0}
.export-format{min-height:32px;border-radius:8px;border:1px solid #38443b;background:#0d100e;color:#99a79e;font-size:10px;font-weight:900;cursor:pointer}
.export-format.png.active{border-color:#80ff00;color:#80ff00;background:rgba(128,255,0,.08)}
.export-format.psd.active{border-color:#31a8ff;color:#73c8ff;background:rgba(49,168,255,.10)}
.export-format.pdf.active{border-color:#ff5252;color:#ff8a8a;background:rgba(255,82,82,.10)}
.download-btn.format-png{border-color:#80ff00;background:linear-gradient(180deg,#68df00,#2e8200)}
.download-btn.format-psd{border-color:#31a8ff;background:linear-gradient(180deg,#1e8fd8,#11527f)}
.download-btn.format-pdf{border-color:#ff5252;background:linear-gradient(180deg,#e74d4d,#8d2424)}

.compare-range{width:96px!important;accent-color:#b02cff}.compare-range.hidden{display:none}

#selectionCanvas{position:absolute;pointer-events:none;z-index:7;box-shadow:none!important;background:transparent!important;max-width:none!important;max-height:none!important}
#compareCanvas{z-index:5}.eyedropper-hint{z-index:9}


/* BG Zero Pro v1.3.4 — cierre de etapa de edición manual */
.manual-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.manual-head h2{margin:0}.manual-state{font-size:8px;font-weight:900;letter-spacing:.35px;padding:4px 7px;border:1px solid #334036;border-radius:999px;color:#89958d;background:#0a0d0b;white-space:nowrap}.manual-state.is-erase{border-color:rgba(255,82,82,.5);color:#ff8d8d;background:rgba(255,82,82,.08)}.manual-state.is-restore{border-color:rgba(176,44,255,.55);color:#d6a7ff;background:rgba(176,44,255,.08)}
#lassoControls{margin-top:4px}#lassoControls.tool-disabled{display:none}
.brush-cursor{position:absolute;z-index:12;border:1px solid rgba(255,255,255,.95);border-radius:50%;transform:translate(-50%,-50%);pointer-events:none;box-shadow:0 0 0 1px rgba(0,0,0,.85),0 0 4px rgba(0,0,0,.75)}.brush-cursor.hidden{display:none}.brush-cursor span{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border:1px dashed rgba(125,255,0,.95);border-radius:50%;box-shadow:0 0 0 1px rgba(0,0,0,.5)}
canvas.brush-active{cursor:none!important}.compact-bottom{min-height:42px;padding:5px 8px}.workflow-info{margin-left:auto;min-height:30px;border:1px solid #334c36;border-radius:8px;background:#0c100d;color:#b9c5bc;font-size:9px;font-weight:800;padding:0 10px;cursor:pointer}.workflow-info:hover{border-color:var(--cyan);color:#fff}
.collapsible-card{padding:0!important}.collapsible-card>summary{list-style:none;display:flex;align-items:center;gap:9px;padding:11px 12px;cursor:pointer;user-select:none}.collapsible-card>summary::-webkit-details-marker{display:none}.collapsible-card>summary>div{flex:1}.collapsible-card>summary h3{margin:0;font-size:15px}.collapsible-card>summary small{color:var(--purple2);font-size:10px}.collapse-mark{font-size:14px;color:#86958a;transition:transform .15s}.collapsible-card[open] .collapse-mark{transform:rotate(180deg)}.collapsible-body{padding:0 12px 11px;border-top:1px solid rgba(92,150,171,.12)}

#previewCanvas.pan-ready{cursor:grab!important}#previewCanvas.panning{cursor:grabbing!important}

/* BG Zero Pro v1.3.8 — integración del ecosistema Arte Loco MX */
.ecosystem-suggest{margin-top:10px;padding:10px;border:1px solid rgba(176,44,255,.45);border-radius:9px;background:linear-gradient(180deg,rgba(176,44,255,.08),rgba(125,255,0,.035));display:grid;gap:8px}.ecosystem-suggest.hidden{display:none}.ecosystem-copy{display:grid;gap:3px}.ecosystem-copy b{font-size:10px;color:#f4f5f4}.ecosystem-copy span{font-size:9px;line-height:1.35;color:#9bbdca}.ecosystem-btn{width:100%;min-height:34px;border:1px solid var(--purple2);border-radius:7px;background:#171020;color:#f6efff;font-size:9px;font-weight:900;letter-spacing:.25px;cursor:pointer}.ecosystem-btn:hover{border-color:var(--cyan);color:#fff;background:#182213}.ecosystem-btn span{color:var(--cyan);margin-right:5px}.ecosystem-suggest small{font-size:8px;line-height:1.35;color:#728b7b}
.auto-detect-info{margin-top:8px;padding:8px 9px;border-radius:8px;border:1px solid #344538;background:#0b0e0c;display:grid;grid-template-columns:10px 1fr;gap:8px;align-items:start}.auto-detect-info .auto-dot{width:8px;height:8px;margin-top:3px;border-radius:50%;background:#7b8a7d}.auto-detect-info div{display:grid;gap:2px}.auto-detect-info b{font-size:9px;color:#e8eee9}.auto-detect-info small{font-size:8px;line-height:1.35;color:#819487}.auto-detect-info.success{border-color:rgba(125,255,0,.45);background:rgba(125,255,0,.045)}.auto-detect-info.success .auto-dot{background:var(--cyan);box-shadow:0 0 7px rgba(125,255,0,.65)}.auto-detect-info.success b{color:#caff9d}.auto-detect-info.warning{border-color:rgba(255,200,87,.45);background:rgba(255,200,87,.045)}.auto-detect-info.warning .auto-dot{background:var(--warn)}.auto-detect-info.warning b{color:#ffe3a3}.auto-detect-info.manual{border-color:rgba(176,44,255,.45);background:rgba(176,44,255,.045)}.auto-detect-info.manual .auto-dot{background:var(--purple2)}.auto-detect-info.manual b{color:#e6c4ff}


.cleanup-btn{margin-top:8px;border-color:rgba(125,255,0,.45);background:rgba(125,255,0,.08);color:#dfffc0;font-weight:800}.cleanup-btn:hover:not(:disabled){border-color:rgba(125,255,0,.7);background:rgba(125,255,0,.13)}

.release-lock-icon{width:17px;height:17px;display:block;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}

/* v1.4.6 access/user refinements */
.account-wrap{position:relative;justify-self:end;min-width:230px}
.account-box{width:100%;cursor:pointer;color:inherit;text-align:left}
.account-summary{display:flex;flex-direction:column;min-width:0;flex:1}
.account-chevron{margin-left:auto;color:var(--muted);font-size:16px;transition:transform .15s ease}
.account-box[aria-expanded="true"] .account-chevron{transform:rotate(180deg)}
.account-panel{position:absolute;right:0;top:calc(100% + 7px);z-index:60;width:min(330px,88vw);padding:10px 12px;border:1px solid #4d2f63;border-radius:11px;background:#101210;box-shadow:0 18px 42px rgba(0,0,0,.52)}
.account-panel.hidden{display:none}
.account-panel>div{display:grid;grid-template-columns:82px minmax(0,1fr);gap:10px;padding:8px 0;border-bottom:1px solid rgba(125,255,0,.1)}
.account-panel>div:last-child{border-bottom:0}
.account-panel span{font-size:10px;color:#8fb2a0}
.account-panel b{font-size:11px;color:#fff;text-align:right;overflow-wrap:anywhere}
.password-field{display:grid;grid-template-columns:1fr 42px;gap:6px}
.password-field input{min-width:0;width:100%}
.password-toggle{width:42px!important;padding:0!important;display:grid;place-items:center;background:#0b0d0c!important;border:1px solid #3c4c37!important}
.password-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8}
.password-toggle.is-visible{border-color:var(--cyan)!important;color:var(--cyan)!important}
@media(max-width:780px){.account-wrap{grid-column:1/-1;justify-self:stretch;min-width:0}.account-panel{left:0;right:auto;width:100%}}

.account-switch-btn{grid-column:1/-1;width:100%;margin-top:8px;border:1px solid #4d2f63;border-radius:8px;background:#171020;color:#f2e8ff;padding:9px 10px;font-size:10px;font-weight:800;cursor:pointer}.account-switch-btn:hover{border-color:var(--purple2)}.access-secondary{width:100%;margin-top:9px;border:1px solid #4d2f63!important;background:#171020!important;color:#f2e8ff!important}.access-secondary.hidden{display:none!important}

/* v1.4.10 — selector de color estable y comparador visible */
.color-pick{display:flex;align-items:center;gap:6px;min-width:0}
.color-pick input[type=color]{-webkit-appearance:none;appearance:none;width:36px!important;height:36px!important;min-width:36px!important;max-width:36px!important;flex:0 0 36px!important;padding:0!important;border:1px solid #42604b!important;border-radius:6px!important;background:#0b0d0c!important;overflow:hidden;cursor:pointer}
.color-pick input[type=color]::-webkit-color-swatch-wrapper{padding:2px}
.color-pick input[type=color]::-webkit-color-swatch{border:0;border-radius:3px}
.color-pick input[type=color]::-moz-color-swatch{border:0;border-radius:3px}
#compareBtn{display:inline-flex!important;align-items:center;justify-content:center}