*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:#f4f6f8;color:#1b3040;font:13px/1.45 system-ui,-apple-system,Segoe UI,sans-serif;display:flex;flex-direction:column}
button,input,select,textarea{font:inherit;color:inherit}
a{color:#087c72;text-decoration:none}a:hover{text-decoration:underline}
button,label.button,a.button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,label.button:focus-visible,.viewport:focus-visible{outline:3px solid #63c4ed;outline-offset:2px}
[hidden]{display:none!important}

header{height:46px;flex:none;background:#142936;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:3px solid #31b6a2}
.brand{color:#fff;font-size:15px;font-weight:750;letter-spacing:1.4px}.brand span{color:#a3c2cc;font-size:10px;font-weight:500;margin-left:12px}
header nav{display:flex;gap:24px}header nav a{color:#c4d5dd;font-size:13px}header nav a[aria-current=page]{color:#a2e8dc}

button,.button{border:1px solid #c9d6dc;background:#fff;color:#2e4b5c;border-radius:5px;padding:3px 10px;font-size:12px;min-height:28px;display:inline-flex;align-items:center;gap:4px;white-space:nowrap}
button:hover,.button:hover{border-color:#2e9a85;text-decoration:none}
button:disabled{opacity:.45;cursor:default;border-color:#c9d6dc}
button.primary,.button.primary{background:#16806b;border-color:#16806b;color:#fff;font-weight:650}
button.primary:hover,.button.primary:hover{background:#0f6c5a}
button.ghost{border-color:transparent;background:transparent}
button.danger{color:#ad3748;border-color:#e2b8bf}
button[aria-pressed=true]{background:#dff1eb;border-color:#2e9a85;color:#0d6e58;font-weight:650}
input[type=number],input[type=text],select{border:1px solid #c9d6dc;border-radius:5px;background:#fff;padding:3px 6px;font-size:12px}
input[type=number]{width:64px}
.status{min-height:20px;font-size:12px;color:#426d61}.status.warning{color:#91621f}.status.error{color:#ad3748}

/* Projects screen */
.projects{max-width:880px;width:100%;margin:0 auto;padding:28px 18px;overflow:auto}
.projects h1{font-size:24px;margin:0 0 4px}.projects-head p{margin:0 0 18px;color:#5b707e}
.projects h2{font-size:14px;margin:22px 0 8px}
.upload{border:1.5px dashed #9db5bd;border-radius:9px;background:#edf3f4;padding:22px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;position:relative}
.upload.dragging{background:#d6f1e7;border:2px solid #168a72}
.upload small{flex-basis:100%;color:#687d88;font-size:11px}
#upload-input{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}
.upload:focus-within{outline:3px solid #63c4ed}
.project-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.project-list li{background:#fff;border:1px solid #d6e0e5;border-radius:8px;padding:10px 14px;display:flex;align-items:center;gap:12px}
.project-list strong{display:block;font-size:14px}.project-list small{color:#6d818d}
.project-list .actions{margin-left:auto;display:flex;gap:6px}
.project-list .empty{color:#6d818d;justify-content:center}

/* Editor */
.editor{flex:1;min-height:0;display:flex;flex-direction:column}
.toolbar{flex:none;display:flex;align-items:center;gap:6px 10px;flex-wrap:wrap;padding:6px 12px;background:#fff;border-bottom:1px solid #dde5e9}
.title-input{font-weight:650;font-size:13px!important;width:240px;border-color:transparent!important;background:transparent!important}
.title-input:hover,.title-input:focus{border-color:#c9d6dc!important;background:#fff!important}
.field{display:inline-flex;align-items:center;gap:5px;font-size:11px;color:#5c7280}
.group{display:inline-flex;align-items:center;gap:3px}
.group>span{font-size:11px;min-width:40px;text-align:center}
.spacer{flex:1}

.wizard{flex:none;background:#fff8ec;border-bottom:1px solid #ecd9b4}
.wizard-step{display:flex;align-items:center;gap:8px 14px;flex-wrap:wrap;padding:8px 12px}
.step-badge{background:#d9480f;color:#fff;border-radius:10px;padding:2px 9px;font-size:11px;font-weight:700}
.question{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:650;color:#3b2a10}
.question input{font-size:14px;width:70px;padding:4px 6px;border-color:#d9a66b}
button.icon{padding:3px 6px;min-width:32px;justify-content:center}
.size-tools{gap:4px;padding:0 6px;border-left:1px solid #ecd9b4;border-right:1px solid #ecd9b4}
.size-label{font-size:11.5px;font-weight:650;color:#3b2a10}
#size-value{min-width:42px;text-align:center;font-weight:650}
.size-text{font-size:11px;color:#7a5c2c;min-width:0!important}
.size-text.low{color:#c2410c;font-weight:650}
button.icon svg{width:18px;height:18px;display:block}
.line-tools button[aria-pressed=true]{background:#1f7fae;border-color:#1f7fae;color:#fff}
.viewport.adding{cursor:crosshair}
.overlay .line-preview{stroke:#1f7fae;stroke-width:1.2;stroke-dasharray:6 4;vector-effect:non-scaling-stroke}
.wizard-hint{font-size:11.5px;color:#7a5c2c;max-width:520px}

.status-line{flex:none;display:flex;align-items:center;gap:10px;padding:4px 12px;font-size:11.5px;color:#4f6878;background:#eef3f5;border-bottom:1px solid #dde5e9;min-height:28px}
#status-text.warning{color:#91621f}
#status-text.done{color:#116a58;font-weight:600}
#status-text.error{color:#fff;background:#c92a2a;font-weight:650;padding:2px 8px;border-radius:4px}
.overlay .too-big{fill:#e03131;fill-opacity:.16;stroke:#e03131;stroke-width:1.8;vector-effect:non-scaling-stroke}
.cell-tag.too-big b{background:#c92a2a}
.size-alert{margin:8px 0;padding:6px 8px;border-radius:5px;background:#ffe3e3;color:#a61e1e;font-size:11.5px;font-weight:600}
.package-actions{display:inline-flex;gap:6px;align-items:center}
.package-actions select{min-height:24px;font:inherit;font-size:12px;border:1px solid #c9d6dc;border-radius:5px;background:#fff}
.keys-dialog{border:1px solid #c9d6dc;border-radius:8px;padding:16px 18px;max-width:460px;width:calc(100% - 32px)}
.keys-dialog h2{margin:0 0 6px;font-size:16px}.keys-dialog p{margin:0 0 12px;color:#6d818d;font-size:12px}
.key-row{display:grid;grid-template-columns:1fr auto;gap:4px 8px;margin-bottom:12px}
.key-row label{grid-column:1/-1;font-weight:650}.key-row small{grid-column:1/-1;color:#6d818d}
.key-row input{min-width:0;font:inherit;padding:3px 6px;border:1px solid #c9d6dc;border-radius:5px}
.keys-actions{display:flex;justify-content:flex-end}
.package-actions .button,.package-actions button{min-height:24px;padding:1px 9px}
.save-state{margin-left:auto;color:#5e8077}.save-state.error{color:#ad3748}.save-state.warning{color:#91621f}
.confirm-bar{display:inline-flex;align-items:center;gap:8px;background:#fff4df;border:1px solid #e6c98f;border-radius:5px;padding:2px 4px 2px 10px;color:#6d4d12}

.work{flex:1;min-height:0;position:relative;display:flex}
.viewport{flex:1;overflow:auto;background:#d9e1e6;position:relative;user-select:none;touch-action:none;cursor:grab;outline-offset:-3px}
.viewport.panning{cursor:grabbing}
.viewport.painting{cursor:crosshair}
.stage{position:relative;margin:12px;box-shadow:0 1px 4px rgba(20,41,54,.25);background:#fff}
.overview,.detail{position:absolute;left:0;top:0;width:100%;height:100%;display:block;pointer-events:none}
.detail{width:auto;height:auto}
.overlay{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.overlay .dim{fill:#142936;fill-opacity:.22;fill-rule:evenodd}
.overlay .pool{fill:none;stroke:#d9480f;stroke-width:1.2;vector-effect:non-scaling-stroke}
.overlay .row-line{stroke:#d9480f;stroke-width:1.8;vector-effect:non-scaling-stroke}
.overlay .row-line.faint,.overlay .pool.faint{stroke-opacity:.45;stroke-width:.9;stroke-dasharray:7 5}
.overlay .row-size{fill:#9a3412;font-family:system-ui,sans-serif;font-weight:650;paint-order:stroke;stroke:#fff;stroke-width:3px;stroke-linejoin:round}
.overlay .cell{fill:none}
.overlay .cell.selected{fill:#e05842;fill-opacity:.06;stroke:#e05842;stroke-width:1.5;vector-effect:non-scaling-stroke}
.overlay .grid-line{stroke:#1f7fae;stroke-width:1.8;vector-effect:non-scaling-stroke}
.overlay .grid-line.faint{stroke-width:.9;stroke-opacity:.7}
.overlay .grid-line.loose{stroke:#7c3aed}
.overlay .content-mark{fill:#16806b;fill-opacity:.13}
.overlay .grid-frame{fill:none;stroke:#1f7fae;stroke-width:.9;vector-effect:non-scaling-stroke}
.overlay .analysis{fill:none;stroke:#e05842;stroke-width:.9;stroke-dasharray:6 4;vector-effect:non-scaling-stroke}
.overlay .draft{fill:#16806b;fill-opacity:.12;stroke:#16806b;stroke-width:1.5;stroke-dasharray:5 3;vector-effect:non-scaling-stroke}
.overlay .mask-outline{fill:none;stroke:#e05842;stroke-width:1;stroke-dasharray:3 3;vector-effect:non-scaling-stroke}
.cells{position:absolute;inset:0;pointer-events:none}
.cell-tag{position:absolute;display:flex;align-items:center;gap:3px;padding:3px;pointer-events:none}
.cell-tag b{background:#1f7fae;color:#fff;font-size:10px;line-height:1;padding:3px 5px;border-radius:3px}
.cell-tag.selected b{background:#e05842}
.cell-tag span{background:#fff;border:1px solid #9fb6c2;color:#1f4f6b;font-size:10.5px;font-weight:650;line-height:1;padding:2px 5px;border-radius:3px}

.minimap{position:absolute;right:26px;bottom:26px;width:190px;border:1px solid #b9c9d1;background:#fff;box-shadow:0 2px 8px rgba(20,41,54,.25);border-radius:4px;overflow:hidden;cursor:pointer;z-index:2}
.minimap img{display:block;width:100%;pointer-events:none}
.minimap-view{position:absolute;border:2px solid #e05842;background:rgba(224,88,66,.08);pointer-events:none}

.popover{position:absolute;z-index:4;width:290px;background:#fff;border:1px solid #c9d6dc;border-radius:8px;box-shadow:0 6px 22px rgba(20,41,54,.25);padding:10px 12px}
.popover-head{display:flex;align-items:center;justify-content:space-between}
.popover-head strong{font-size:14px}
.popover-head button{font-size:18px;min-height:24px;padding:0 6px}
.block{display:flex;flex-direction:column;gap:4px;font-size:11.5px;color:#4f6878;margin:8px 0 4px}
.block input{width:100%;font-size:14px;padding:5px 8px}
.hint{font-size:11px;color:#7b8f9a;margin:2px 0 8px}
.row{display:flex;gap:5px;flex-wrap:wrap;margin-bottom:8px}
.popover a{font-size:11.5px}

@media(max-width:900px){.minimap{display:none}.title-input{width:150px}}