:root {
  color-scheme: dark;
  --bg: #061014;
  --panel: #0b171c;
  --panel-2: #0e2027;
  --field: #071318;
  --line: #203841;
  --line-strong: #31525d;
  --text: #edf9fb;
  --muted: #91a9b1;
  --accent: #35e6ff;
  --accent-dark: #078aa0;
  --accent-2: #65ffcc;
  --warn: #ffc857;
  --danger: #ff6b7d;
  --ok: #52f1a5;
  --shadow: 0 24px 90px rgba(0, 0, 0, .3);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #eef5f5;
  --panel: #ffffff;
  --panel-2: #f4f8f8;
  --field: #f8fbfb;
  --line: #cedfe2;
  --line-strong: #a8c4ca;
  --text: #10272d;
  --muted: #5e747b;
  --accent: #008ba1;
  --accent-dark: #04778a;
  --accent-2: #09855f;
  --shadow: 0 22px 70px rgba(30, 58, 66, .12);
}

* { box-sizing: border-box; }
html { min-width: 320px; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 88% 2%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 28rem),
    var(--bg);
  color: var(--text);
}
button, input, select, textarea { font: inherit; }
button {
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 10px;
  padding: .7rem .85rem;
  cursor: pointer;
  transition: border-color .18s, transform .18s, background .18s;
}
button:hover { border-color: var(--accent); }
button:active { transform: translateY(1px); }
button:disabled { cursor: wait; opacity: .58; }
button.primary {
  background: linear-gradient(135deg, #0baac0, #087388);
  border-color: #3addf5;
  color: #fff;
  font-weight: 780;
}
.app-shell { width: min(1560px, 100%); margin: 0 auto; padding: 18px; }
.topbar { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; }
.topbar h1 { margin: .22rem 0; font-size: clamp(1.55rem, 3vw, 2.45rem); letter-spacing: -.035em; }
.topbar p { margin: 0; color: var(--muted); max-width: 780px; }
.eyebrow { font-size: .7rem; color: var(--accent); letter-spacing: .15em; font-weight: 760; }
.top-actions { display: flex; gap: 8px; align-items: center; }
.icon-button { width: 42px; height: 42px; padding: 0; font-size: 1.25rem; }
.status-pill { border: 1px solid var(--line); border-radius: 999px; padding: .62rem .9rem; color: var(--muted); white-space: nowrap; font-size: .82rem; }
.status-pill.ready { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 48%, var(--line)); }
.status-pill.error { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 48%, var(--line)); }
.preset-bar { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; margin: 15px 0; }
.preset-bar > span { color: var(--muted); font-size: .78rem; margin-right: 2px; }
.preset-bar button { padding: .48rem .65rem; font-size: .75rem; }
.preset-bar .v4-preset { border-color: color-mix(in srgb, var(--accent) 65%, var(--line)); color: var(--accent-2); font-weight: 760; }
.layout { display: grid; grid-template-columns: minmax(330px, 390px) 1fr; gap: 16px; align-items: start; }
.panel, .workspace { border: 1px solid var(--line); background: color-mix(in srgb, var(--panel) 96%, transparent); border-radius: 18px; box-shadow: var(--shadow); }
.controls { overflow: hidden; }
.control-section + .control-section { border-top: 1px solid var(--line); }
.section-title { width: 100%; border: 0; border-radius: 0; background: transparent; display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; text-align: left; }
.section-title span { display: flex; align-items: center; gap: 9px; font-weight: 760; }
.section-title b { width: 25px; height: 25px; display: grid; place-items: center; border-radius: 8px; background: color-mix(in srgb, var(--accent) 15%, var(--panel-2)); color: var(--accent); font-size: .75rem; }
.section-title i { color: var(--muted); font-style: normal; }
.section-content { display: none; padding: 0 16px 16px; }
.control-section.open .section-content { display: block; }
label { display: block; color: var(--muted); font-size: .76rem; line-height: 1.35; }
textarea, select, input[type="number"] { width: 100%; margin-top: .38rem; background: var(--field); border: 1px solid var(--line); color: var(--text); border-radius: 9px; padding: .68rem .72rem; outline: none; }
textarea:focus, select:focus, input[type="number"]:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent); }
textarea { min-height: 84px; resize: vertical; line-height: 1.4; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; margin-top: 10px; }
.font-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; margin-top: 9px; }
.font-grid select { padding-left: .5rem; padding-right: .4rem; font-size: .74rem; }
.range-field { margin-top: 11px; }
.range-field label { display: flex; justify-content: space-between; gap: 10px; }
output { color: var(--accent); font-variant-numeric: tabular-nums; font-weight: 700; }
input[type="range"] { width: 100%; margin: .42rem 0 0; accent-color: var(--accent); }
.subpanel { margin-top: 12px; border: 1px solid var(--line); border-radius: 11px; padding: 0 10px 10px; background: var(--panel-2); }
.hidden { display: none !important; }
.mobile-generate { padding: 13px 16px 16px; border-top: 1px solid var(--line); }
.mobile-generate button { width: 100%; }
.workspace { min-width: 0; padding: 13px; }
.preview-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 3px 4px 12px; }
.preview-toolbar strong { display: block; }
.preview-toolbar > div span { display: block; color: var(--muted); font-size: .77rem; margin-top: 2px; font-variant-numeric: tabular-nums; }
.switch { display: flex; align-items: center; gap: .45rem; margin: 0; }
.switch input { accent-color: var(--accent); }
.canvas-frame { position: relative; height: min(66vh, 700px); min-height: 490px; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 14px; background: linear-gradient(rgba(127, 190, 202, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(127, 190, 202, .06) 1px, transparent 1px), #071116; background-size: 20px 20px; }
:root[data-theme="light"] .canvas-frame { background: linear-gradient(rgba(10, 80, 94, .065) 1px, transparent 1px), linear-gradient(90deg, rgba(10, 80, 94, .065) 1px, transparent 1px), #f8fbfb; background-size: 20px 20px; }
canvas { width: 100%; height: 100%; display: block; }
.ruler { position: absolute; pointer-events: none; color: var(--muted); font-size: .62rem; opacity: .7; }
.ruler-x { left: 12px; right: 12px; bottom: 7px; border-top: 1px solid var(--line-strong); }
.ruler-x span { position: absolute; right: 0; top: 2px; }
.loading-overlay { position: absolute; inset: 0; display: grid; place-items: center; background: color-mix(in srgb, var(--bg) 78%, transparent); color: var(--accent); backdrop-filter: blur(4px); z-index: 5; }
.loading-overlay.hidden { display: none; }
.diagnostics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; margin-top: 10px; }
.diagnostics article { border: 1px solid var(--line); background: var(--panel-2); border-radius: 11px; padding: 10px 11px; min-width: 0; }
.diagnostics span, .diagnostics small { display: block; color: var(--muted); font-size: .68rem; }
.diagnostics strong { display: block; font-size: 1.35rem; margin: .18rem 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.validation { margin-top: 10px; padding: 11px 13px; border: 1px solid var(--line); background: var(--panel-2); border-radius: 11px; }
.validation > div { display: flex; justify-content: space-between; align-items: center; }
.validation > div span { border-radius: 999px; padding: .25rem .55rem; background: var(--field); color: var(--muted); font-size: .7rem; }
.validation > div span.ok { color: var(--ok); }
.validation > div span.warn { color: var(--warn); }
.validation > div span.error { color: var(--danger); }
.validation ul { margin: .55rem 0 0; padding-left: 1.1rem; color: var(--muted); font-size: .77rem; line-height: 1.45; }
.validation li.ok { color: var(--ok); }
.validation li.warn { color: var(--warn); }
.validation li.error { color: var(--danger); }
.export-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 10px; }

@media (max-width: 1080px) {
  .layout { grid-template-columns: 340px 1fr; }
  .diagnostics { grid-template-columns: 1fr 1fr; }
  .export-bar { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .workspace { grid-row: 1; }
  .controls { grid-row: 2; }
  .canvas-frame { min-height: 420px; height: 56vh; }
}
@media (max-width: 620px) {
  .app-shell { padding: 10px; }
  .topbar { display: block; }
  .top-actions { margin-top: 10px; justify-content: space-between; }
  .status-pill { flex: 1; text-align: center; }
  .preset-bar { margin: 10px 0; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
  .preset-bar > span, .preset-bar button { white-space: nowrap; }
  .workspace { padding: 8px; border-radius: 14px; }
  .canvas-frame { height: 52vh; min-height: 350px; }
  .preview-toolbar { align-items: flex-end; }
  .switch span { font-size: .72rem; }
  .font-grid { grid-template-columns: 1fr; }
  .diagnostics { gap: 6px; }
  .diagnostics article { padding: 8px; }
  .diagnostics strong { font-size: 1.1rem; }
  .export-bar { padding: 7px; border: 1px solid var(--line); border-radius: 12px; }
  .export-bar button { font-size: .74rem; padding: .65rem .4rem; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }

/* Manual geometry correction */
.preview-actions{display:flex;align-items:center;gap:10px}.edit-button{white-space:nowrap}.manual-toolbar{display:grid;grid-template-columns:auto minmax(220px,1fr) auto;gap:10px;align-items:center;margin:0 0 10px;padding:9px;border:1px solid var(--line);background:var(--panel-2);border-radius:11px}.manual-tools{display:flex;gap:7px;flex-wrap:wrap}.manual-tools button.active{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 15%,transparent)}.manual-brush{display:grid;grid-template-columns:auto minmax(100px,1fr) auto;align-items:center;gap:8px;margin:0;color:var(--muted);font-size:.75rem}.manual-brush input{margin:0}.manual-brush output{min-width:54px;text-align:right;font-variant-numeric:tabular-nums}.canvas-frame.manual-editing canvas{cursor:crosshair;touch-action:none}.manual-edit-note{color:var(--warn)}
@media(max-width:760px){.manual-toolbar{grid-template-columns:1fr}.manual-toolbar>.primary{width:100%}.preview-actions{flex-wrap:wrap;justify-content:flex-end}}

.canvas-frame.manual-editing{box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--accent) 55%,transparent)}
.canvas-frame.manual-editing::after{content:"TRYB EDYCJI RĘCZNEJ";position:absolute;left:12px;bottom:10px;pointer-events:none;font-size:.68rem;font-weight:800;letter-spacing:.08em;color:var(--accent);background:color-mix(in srgb,var(--panel) 88%,transparent);border:1px solid var(--accent);padding:5px 8px;border-radius:7px;z-index:8}
.canvas-frame.manual-editing #paperCanvas{touch-action:none!important;user-select:none;-webkit-user-select:none;cursor:crosshair}

/* R4 manual editor */
.manual-hint{grid-column:1/-1;font-size:.72rem;color:var(--muted);padding:0 2px 2px}.canvas-frame.manual-editing[data-manual-mode="add"]::after{content:"EDYCJA RĘCZNA • DODAJ MATERIAŁ"}.canvas-frame.manual-editing[data-manual-mode="erase"]::after{content:"EDYCJA RĘCZNA • USUŃ MATERIAŁ"}#paperCanvas{display:block;width:100%;height:100%}.canvas-frame.manual-editing #paperCanvas{pointer-events:auto!important;touch-action:none!important}