/* Budlicz: wspólny styl */
:root{
  --bg:#f6f4ef; --surface:#ffffff; --ink:#1b2026; --muted:#5d6672; --line:#e4dfd5;
  --brand:#e8590c; --brand-ink:#ffffff; --brand-soft:#fff1e6; --accent:#1f3a4d;
  --ok:#2b8a3e; --radius:14px; --shadow:0 1px 2px rgba(27,32,38,.06),0 6px 24px rgba(27,32,38,.06);
}
@media (prefers-color-scheme:dark){:root{
  --bg:#12161b; --surface:#1a2027; --ink:#eef1f4; --muted:#9ba5b1; --line:#2a323c;
  --brand:#ff7a2e; --brand-ink:#1a1206; --brand-soft:#2a1d14; --accent:#9cc3dc;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 24px rgba(0,0,0,.25);
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 "Inter",system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--brand)}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}

/* nagłówek */
.top{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.top .wrap{display:flex;align-items:center;gap:24px;min-height:64px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:800 1.35rem/1 "Manrope","Inter",sans-serif;letter-spacing:-.02em;flex-shrink:0}
.logo b{color:var(--brand)}
.logo svg{width:32px;height:32px}
.top nav{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;margin-left:auto}
.top nav::-webkit-scrollbar{display:none}
.top nav a{color:var(--muted);text-decoration:none;font-weight:600;font-size:.93rem;padding:8px 12px;border-radius:999px;white-space:nowrap}
.top nav a:hover{color:var(--ink);background:var(--bg)}
.top nav a[aria-current]{color:var(--brand);background:var(--brand-soft)}
@media(max-width:720px){.top .wrap{flex-wrap:wrap;gap:0;padding-top:10px}.top nav{margin:6px -20px 0;padding:0 16px 10px;width:calc(100% + 40px)}}

/* treść */
main.wrap{padding-top:28px;padding-bottom:72px}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:8px}
.crumbs a{color:var(--muted);text-decoration:none}
h1{font:800 clamp(1.75rem,4vw,2.4rem)/1.15 "Manrope","Inter",sans-serif;letter-spacing:-.02em;margin:0 0 12px}
h2{font:700 1.35rem/1.3 "Manrope","Inter",sans-serif;letter-spacing:-.01em;margin:44px 0 12px}
.lead{font-size:1.08rem;color:var(--muted);max-width:68ch;margin:0 0 8px}
article p,article li{max-width:72ch}
li{margin:6px 0}
.mut{color:var(--muted);font-size:.9rem}

/* kalkulator */
.calc{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:20px;margin:28px 0 8px;align-items:start}
@media(max-width:860px){.calc{grid-template-columns:1fr}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:4px 16px}
@media(max-width:560px){.grid{grid-template-columns:1fr}}
label{display:block;margin:12px 0 6px;font-weight:600;font-size:.9rem}
input,select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:inherit;font-size:1rem;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.out{position:sticky;top:88px;background:var(--accent);color:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);line-height:1.9}
@media (prefers-color-scheme:dark){.out{background:#223644}}
.out::before{content:"Wynik";display:block;font:700 .75rem/1 "Inter",sans-serif;letter-spacing:.12em;text-transform:uppercase;opacity:.7;margin-bottom:12px}
.out b{font:800 1.4rem/1.3 "Manrope","Inter",sans-serif;color:#fff}
.out .mut{color:rgba(255,255,255,.75);line-height:1.5;margin:14px 0 0;border-top:1px solid rgba(255,255,255,.18);padding-top:12px}
@media(max-width:860px){.out{position:static}}
.cta{display:block;text-align:center;background:var(--brand);color:var(--brand-ink);font-weight:700;padding:15px;border-radius:12px;text-decoration:none;margin-top:20px}
.cta:hover{filter:brightness(1.05)}
details{margin-top:24px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 18px}
summary{cursor:pointer;font-weight:600}

/* poradnikowe elementy */
.tip{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:10px;padding:14px 18px;margin:14px 0;max-width:72ch}
table{border-collapse:collapse;width:100%;margin:16px 0;background:var(--surface);border-radius:12px;overflow:hidden;border:1px solid var(--line);font-size:.95rem}
td,th{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
th{background:var(--bg);font-weight:700}
tr:last-child td{border-bottom:0}
.tablewrap{overflow-x:auto}

/* strona główna */
.hero{padding:28px 0 8px}
.hero h1{font-size:clamp(2rem,5vw,3.1rem);max-width:18ch}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero .lead{font-size:1.15rem}
.pills{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 0;padding:0;list-style:none}
.pills li{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:.88rem;color:var(--muted);margin:0}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin:16px 0}
.tile{display:flex;flex-direction:column;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;color:var(--ink);text-decoration:none;box-shadow:var(--shadow);transition:transform .15s,border-color .15s}
.tile:hover{transform:translateY(-2px);border-color:var(--brand)}
.tile .ic{width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;margin-bottom:6px}
.tile .ic svg{width:24px;height:24px}
.tile b{font:700 1.08rem/1.3 "Manrope","Inter",sans-serif}
.tile span{color:var(--muted);font-size:.92rem;line-height:1.5}
.tile .tag{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand)}

/* stopka */
footer{border-top:1px solid var(--line);background:var(--surface);color:var(--muted);font-size:.88rem}
footer .wrap{padding-top:28px;padding-bottom:36px;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}
footer a{color:var(--muted)}
main.wrap > p, main.wrap > ul, main.wrap > ol{max-width:72ch}
body{display:flex;flex-direction:column;min-height:100vh}
main.wrap{flex:1;width:100%}

/* grafiki */
.fig{margin:20px 0 0;padding:18px 22px}
.fig figcaption{font-weight:700;font-family:"Manrope","Inter",sans-serif;margin-bottom:6px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.fig figcaption span{font-weight:400;color:var(--muted);font-family:"Inter",sans-serif;font-size:.85rem}
.fig svg{width:100%;height:auto;display:block}
.fig .note{color:var(--muted);font-size:.85rem;margin:6px 0 0}
.fig canvas{width:100%;height:360px;display:block;border-radius:10px;background:linear-gradient(#eef3f7,#f8f6f1);cursor:grab;touch-action:pan-y}
@media (prefers-color-scheme:dark){.fig canvas{background:linear-gradient(#1c2630,#151a20)}}
.figs2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:720px){.figs2{grid-template-columns:1fr}}
svg .t{font:600 12px Inter,system-ui,sans-serif;fill:var(--ink)}
svg .tm{font:500 11px Inter,system-ui,sans-serif;fill:var(--muted)}
svg .halo{paint-order:stroke;stroke:var(--surface);stroke-width:4px;stroke-linejoin:round}
svg .dim{stroke:var(--muted);stroke-width:1}
svg .grunt{fill:#c9a77c}svg .grunt2{fill:#b48d5f}
svg .beton{fill:#b9bec4;stroke:#7d858e;stroke-width:1.2}
svg .stal{fill:#c2410c}svg .strzem{fill:none;stroke:#c2410c;stroke-width:1.6}
svg .xps{fill:#f4d35e;stroke:#c9a227;stroke-width:1}
svg .eps{fill:#f1f3f5;stroke:#adb5bd;stroke-width:1}
svg .jastrych{fill:#d6d3cc;stroke:#8f8a80;stroke-width:1}
svg .rura{fill:#e8590c}
svg .mur{fill:#d9825b;stroke:#a85a37;stroke-width:1}
svg .chudy{fill:#9aa0a6}
svg .mroz{stroke:#1c7ed6;stroke-width:1.5;stroke-dasharray:6 4;fill:none}
svg .draw{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.2s ease forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.pop{animation:pop .5s ease both}
@keyframes pop{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){svg .draw,.pop{animation:none;stroke-dashoffset:0}}
svg .odsetki{fill:var(--brand)}
svg .kapital{fill:var(--accent)}
svg .schod{fill:none;stroke:var(--brand);stroke-width:3}
svg .hydro{fill:none;stroke:var(--ink);stroke-width:3}
svg .halo{paint-order:stroke;stroke:var(--surface);stroke-width:4px;stroke-linejoin:round}
.top nav{overflow:visible;flex-wrap:wrap;row-gap:4px}
@media(max-width:720px){.top nav{overflow:visible;width:100%;margin:6px 0 0;padding:0 0 10px;gap:0 2px}}
.grp{position:relative}
.grp summary{list-style:none;cursor:pointer;color:var(--muted);font-weight:600;font-size:.93rem;padding:8px 12px;border-radius:999px;white-space:nowrap;user-select:none}
.grp summary::-webkit-details-marker{display:none}
.grp summary::after{content:" ▾";font-size:.75em;opacity:.7}
.grp summary:hover,.grp[open] summary{color:var(--ink);background:var(--bg)}
.grp.cur summary{color:var(--brand)}
.top .dd{position:absolute;top:calc(100% + 6px);left:0;min-width:230px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;z-index:30;display:flex;flex-direction:column;gap:2px}
.top .dd a{display:block;padding:9px 12px;border-radius:8px;color:var(--ink);font-weight:600;font-size:.92rem;white-space:nowrap}
.top .dd a:hover{background:var(--bg);color:var(--brand)}
.top .dd a[aria-current]{color:var(--brand);background:var(--brand-soft)}
.kroki{padding-left:22px}
.kroki li{margin:12px 0;max-width:72ch}
.grp{margin:0;padding:0;background:none;border:0;border-radius:0}
svg .otwor{fill:var(--surface);stroke:var(--muted);stroke-width:1.2}
svg .lukob{fill:none;stroke:var(--accent);stroke-width:3;stroke-linecap:round}
svg .sila{fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}