:root {
  --ink: oklch(0.28 0.035 245);
  --cyan: oklch(0.54 0.135 240);
  --steel: oklch(0.49 0.025 245);
  --line: oklch(0.28 0.035 245 / 12%);
  --sea-deep: oklch(0.34 0.075 245);
  --sea-pale: oklch(0.965 0.018 235);
  --sea-soft: oklch(0.86 0.045 235);
  --green: oklch(0.58 0.12 160);
  --green-pale: oklch(0.96 0.03 160);
  --paper: #fff;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: transparent; }
body { color: var(--ink); font: 15px/1.55 "Manrope", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
h3 { font-family: "Sora", "Manrope", sans-serif; font-weight: 600; margin: 0; letter-spacing: -0.01em; }
p { margin: 0; }
.calc { padding: 4px 2px 8px; }

.segs { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 14px; border-bottom: 1px solid var(--sea-soft); scrollbar-width: none; }
.seg { flex: none; height: 42px; padding: 0 18px; border-radius: 99px; border: 0; background: transparent; color: var(--steel); font: 600 14px "Manrope", sans-serif; cursor: pointer; }
.seg:hover { background: var(--paper); color: var(--ink); }
.seg[aria-selected="true"] { background: var(--ink); color: var(--paper); }

.grid { display: grid; grid-template-columns: 340px 1fr; gap: 16px; margin-top: 20px; }
.panel { background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 22px; }
.lbl { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--steel); }
.lbl.cyan { color: var(--cyan); }
.field { display: block; margin-top: 16px; }
.field:first-child { margin-top: 0; }
.field .lbl { display: flex; justify-content: space-between; margin-bottom: 7px; }
.field output { color: var(--ink); font-size: 12px; text-transform: none; letter-spacing: 0; }
select, input[type="number"] { width: 100%; min-height: 44px; border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; font: 500 14px "Manrope", sans-serif; color: var(--ink); background: #fff; }
select:focus, input:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 2px color-mix(in oklab, var(--cyan) 24%, transparent); }
input[type="range"] { width: 100%; accent-color: var(--ink); }
.hint { display: block; font-size: 12px; color: var(--steel); margin-top: 4px; }
.note { font-size: 12.5px; color: var(--steel); background: var(--sea-pale); border-radius: 6px; padding: 9px 11px; margin-top: 10px; }
.btn { display: inline-flex; align-items: center; justify-content: center; height: 46px; padding: 0 22px; border: 0; border-radius: 6px; background: var(--ink); color: #fff; font: 600 14px "Manrope", sans-serif; cursor: pointer; }
#calcForm .btn { width: 100%; margin-top: 22px; }
.btn-cyan { background: var(--cyan); }
.btn:disabled { opacity: .6; cursor: progress; }
.btn:focus-visible, .seg:focus-visible { outline: 3px solid color-mix(in oklab, var(--cyan) 40%, transparent); outline-offset: 2px; }

.phead { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.tag { font-size: 10px; font-weight: 700; text-transform: uppercase; padding: 4px 10px; border-radius: 99px; background: var(--sea-pale); color: var(--sea-deep); white-space: nowrap; }
#chart { width: 100%; height: auto; margin-top: 8px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 10px 0 0; padding-top: 14px; border-top: 1px solid var(--line); }
.stats dt { font-size: 11px; color: var(--steel); }
.stats dd { margin: 2px 0 0; font: 600 1.25rem "Sora", sans-serif; }

.results { margin-top: 16px; background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 24px; }
.rhead { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.rhead h3 { font-size: clamp(1.2rem, 2.2vw, 1.6rem); margin-top: 6px; max-width: 32ch; }
.variants { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 20px; }
.variant { position: relative; border: 1px solid var(--line); border-radius: 8px; padding: 18px; }
.variant.best { border: 2px solid var(--green); background: var(--green-pale); }
.badge { position: absolute; top: -10px; left: 14px; background: var(--green); color: #fff; font-size: 10px; font-weight: 700; padding: 3px 9px; border-radius: 99px; }
.variant h4 { margin: 0; font: 600 .95rem "Sora", sans-serif; }
.cfg { font-size: 12.5px; color: var(--steel); margin-top: 3px; min-height: 2.5em; }
.cost { font: 600 1.45rem "Sora", sans-serif; margin-top: 10px; }
.bar { height: 6px; background: var(--sea-pale); border-radius: 99px; margin-top: 8px; overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 99px; background: var(--sea-soft); }
.variant.mid .bar i { background: var(--cyan); }
.variant.best .bar i { background: var(--green); }
.variant dl { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 12px 0 0; font-size: 12.5px; }
.variant dt { color: var(--steel); }
.variant dd { margin: 0; text-align: right; font-weight: 600; }
.save { color: var(--green); }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.kpis span { display: block; font-size: 11px; color: var(--steel); }
.kpis b { font: 600 1.3rem "Sora", sans-serif; color: var(--green); }
.fine { font-size: 12px; color: var(--steel); margin-top: 14px; }
.error { margin-top: 12px; color: #b42318; font-weight: 600; }

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .variants, .kpis { grid-template-columns: 1fr; }
  .stats dd { font-size: 1.05rem; }
  .panel, .results { padding: 18px; }
  .rhead .btn { width: 100%; }
}

.njsave { margin-top: 14px; font: 600 15px "Manrope", sans-serif; color: var(--green); }
.njsave b { display: block; font: 700 2rem/1.1 "Sora", sans-serif; letter-spacing: -0.02em; }
.variant.best .njsave b { font-size: 2.4rem; }
.njsave.worse { color: #b42318; }
.njsave.ref { color: var(--steel); font-weight: 600; }

/* --- tryby: gotowe scenariusze / własna krzywa (2026-10-13) --- */
.calc.mode-scenarios .custom-only { display: none !important; }
.calc.mode-custom .scenario-only, .calc.mode-custom .segs { display: none !important; }
.calc.mode-custom .grid { margin-top: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.tools { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.btn-ghost { height: 38px; padding: 0 14px; background: var(--paper); color: var(--sea-deep); border: 1px solid var(--sea-soft); font-size: 13px; }
.btn-ghost:hover { border-color: var(--cyan); }
.btn-ghost:focus-within { outline: 3px solid color-mix(in oklab, var(--cyan) 40%, transparent); outline-offset: 2px; }
.curve { position: relative; display: flex; align-items: flex-end; gap: 3px; height: 210px; margin-top: 10px; padding: 22px 8px 8px; border: 1px solid var(--sea-soft); border-radius: 8px; background: var(--sea-pale); touch-action: none; user-select: none; cursor: crosshair; }
.curve i { flex: 1; min-height: 1px; border-radius: 3px 3px 0 0; background: var(--cyan); }
.curve-max { position: absolute; top: 4px; left: 8px; font-size: 11px; color: var(--steel); pointer-events: none; }
.curve-axis { display: flex; justify-content: space-between; font-size: 11px; color: var(--steel); margin-top: 4px; }
.hours { display: grid; grid-template-columns: repeat(12, 1fr); gap: 6px; margin-top: 12px; }
.hours label { font-size: 10px; color: var(--steel); }
.hours input { min-height: 34px; padding: 4px 4px; font-size: 12px; font-weight: 600; text-align: center; margin-top: 2px; }
.results.busy { opacity: .55; transition: opacity .2s; }
@media (max-width: 600px) {
  .hours { grid-template-columns: repeat(6, 1fr); }
}
#calcForm .tools .btn { width: auto; margin-top: 0; }