/* "Hoe werkt het systeem?" — aanvullingen op app.css (zelfde huisstijl als de rekentool) */
.sys-toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.sys-toolbar input[type=search]{flex:1 1 260px;width:auto}
.sys-meta{padding:0 18px 12px;margin:0}

.group-head p{margin:2px 0 0}
.group-total{font-weight:800;color:var(--heading);white-space:nowrap}
.parts{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:1100px){.parts{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.parts{grid-template-columns:1fr}}

.part{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--card);transition:border-color .15s, box-shadow .15s, opacity .15s}
.part.on{border-color:var(--brand-line);box-shadow:0 0 0 3px var(--brand-soft)}
.part.off{border-style:dashed}
.part.off .part-media img,.part.off .part-media .ph{opacity:.55}

.part.warn{border-color:rgba(180,35,24,.45)}
.part-media{position:relative;aspect-ratio:16/10;background:var(--card-2);display:flex;align-items:center;justify-content:center;overflow:hidden}
.part-media img{width:100%;height:100%;object-fit:cover}
.part-media .ph{font-size:2.2rem;opacity:.5}
.part.off .part-media img{filter:grayscale(.8)}
.part-media .badge{position:absolute;top:10px;left:10px;font-size:.74rem;padding:4px 10px;box-shadow:var(--shadow)}
.badge.k-verplicht{background:var(--brand-solid);color:#fff}
.badge.k-optioneel{background:var(--card);color:var(--heading);border:1px solid var(--line)}
.badge.k-stelpost,.badge.k-verbruiksdeel{background:var(--warn-bg);color:var(--warn)}
.part-body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:8px;flex:1}
.part-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.part-name{font-size:1rem;margin:0}
.part-spec{font-size:.84rem;color:var(--muted);margin:0;flex:1}
.part-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;padding-top:10px;border-top:1px solid var(--line)}
.part-price{text-align:right;font-weight:800;color:var(--heading);font-variant-numeric:tabular-nums}
.part-price small{display:block;font-weight:500;font-size:.75rem;color:var(--muted)}
.part-meta{display:flex;justify-content:space-between;gap:6px 12px;flex-wrap:wrap;font-size:.78rem;color:var(--muted)}
.part-meta a{font-weight:700;text-decoration:none}
.part-meta a:hover{text-decoration:underline}
.part-warn{font-size:.8rem;font-weight:700;color:var(--bad);background:var(--bad-bg);border-radius:8px;padding:6px 9px}

/* schakelaar */
.switch{position:relative;display:inline-flex;align-items:center;gap:7px;cursor:pointer;font-size:.78rem;font-weight:700;color:var(--muted);white-space:nowrap}
.switch input{position:absolute;opacity:0;width:1px;height:1px}
.switch .track{width:40px;height:23px;border-radius:999px;background:var(--line);position:relative;transition:background .15s;flex:0 0 auto}
.switch .track::after{content:"";position:absolute;top:3px;left:3px;width:17px;height:17px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.25);transition:transform .15s}
.switch input:checked + .track{background:var(--brand)}
.switch input:checked + .track::after{transform:translateX(17px)}
.switch input:focus-visible + .track{box-shadow:0 0 0 3px rgba(var(--brand-rgb),.35)}
.switch input:disabled + .track{opacity:.5}

/* aantal */
.stepper{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--card)}
.stepper button{border:0;background:var(--card-2);color:var(--heading);width:32px;height:34px;font:inherit;font-weight:800;cursor:pointer}
.stepper button:hover{background:var(--brand-soft)}
.stepper input[type=number]{width:46px;border:0;border-radius:0;text-align:center;padding:6px 2px;-moz-appearance:textfield}
.stepper input::-webkit-outer-spin-button,.stepper input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}

/* vaste resultaatbalk onderin */
.sys-sticky{position:sticky;bottom:0;z-index:40;margin-top:20px;background:var(--card);border-top:3px solid var(--brand);box-shadow:0 -8px 24px rgba(16,24,40,.08)}
.sys-sticky-in{display:flex;gap:20px;align-items:center;flex-wrap:wrap;padding-top:10px;padding-bottom:10px;font-size:.92rem}
.sys-sticky strong{font-size:1.1rem;color:var(--heading);font-variant-numeric:tabular-nums}
.sys-sticky .grow{flex:1}
.tvt-good{color:var(--good)!important}.tvt-warn{color:var(--warn)!important}.tvt-bad{color:var(--bad)!important}
.hidden{display:none!important}
@media (max-width:640px){.sys-sticky-in{gap:4px 12px;font-size:.82rem;padding-top:8px;padding-bottom:8px}.sys-sticky strong{font-size:.95rem}.sys-sticky .btn,.sys-sticky .grow{display:none}}
.part-media{aspect-ratio:16/9}
@media print{.sys-sticky,.sys-toolbar,.header-actions .btn,#themeToggle{display:none!important}}

/* v7: systeemtype kiezen op de systeempagina */
.sys-type-tabs{margin:0 0 14px;flex-wrap:wrap}
.sys-type-tabs .tab{font-size:.95rem;padding:8px 14px}

/* ---------- v8.1: Zo werkt jouw systeem (verhaal, schema, zes stappen, onderhoud, expertlaag) ---------- */
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.sw-h2{margin:0 0 6px;font-size:1.2rem;color:var(--heading)}
.sw-h3{margin:0;font-size:1.05rem;color:var(--heading);display:inline-flex;gap:8px;align-items:center}
.sw-story{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:18px;align-items:start}
.sw-story p{margin:0 0 8px}
.sw-figure{margin:0}
.sw-schema svg{width:100%;height:auto;display:block;border-radius:12px;border:1px solid var(--line)}
.sv-sky{fill:var(--card-2)}.sv-ground{fill:var(--warn-bg)}
.sv-house{fill:var(--card);stroke:var(--line);stroke-width:2}.sv-roof{fill:var(--bad-bg);stroke:var(--line);stroke-width:2}
.sv-crawl{fill:var(--card-2);stroke:var(--line)}.sv-floor{stroke:var(--line);stroke-width:3}
.sv-pipe{fill:none;stroke:var(--brand-solid);stroke-width:4;stroke-linecap:round;stroke-linejoin:round}.sv-pipe.thin{stroke-width:2.5}.sv-pipe.dash{stroke-dasharray:6 5}
.sv-tank{fill:var(--card);stroke:var(--heading);stroke-width:2}.sv-water{fill:var(--brand-soft);stroke:none}
.sv-part{fill:var(--card);stroke:var(--heading);stroke-width:2}.sv-use{fill:var(--card);stroke:var(--heading);stroke-width:2}.sv-use-in{fill:var(--brand-soft);stroke:var(--heading)}
.sv-lbl{font-size:11px;fill:var(--muted);font-family:inherit}
.sv-mark{cursor:pointer}.sv-mark circle{fill:var(--card);stroke:var(--brand-solid);stroke-width:2.5}.sv-mark text{font-size:14px;font-weight:800;fill:var(--heading);font-family:inherit}
.sv-mark.on circle{fill:var(--brand-solid)}.sv-mark.on text{fill:#fff}.sv-mark.dim{opacity:.45}
.sw-stepnav{margin:16px 0 0}
.sw-stepnav ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.sw-stepnav a{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none;font-weight:700;font-size:.88rem;color:var(--heading);background:var(--card);min-height:32px}
.sw-stepnav a.on{border-color:var(--brand-solid);box-shadow:0 0 0 2px var(--brand-soft)}
.sw-num{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:var(--brand-solid);color:#fff;font-size:.8rem;font-weight:800;flex:0 0 auto}
.sw-step{scroll-margin-top:16px}
.sw-step.on{box-shadow:0 0 0 3px var(--brand-soft)}
.sw-sub{font-weight:800;color:var(--heading);white-space:nowrap}
.sw-text p{margin:0 0 6px}
.sw-safety{border-left:4px solid var(--warn);background:var(--warn-bg);padding:8px 12px;border-radius:0 10px 10px 0;color:var(--text)}
.sw-parts{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.sw-part{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:6px 12px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:8px 10px;background:var(--card)}
.sw-part.off{border-style:dashed;color:var(--muted)}
.sw-pname{min-width:0;overflow-wrap:anywhere}
.sw-why{display:block;font-size:.82rem;color:var(--muted)}
.sw-price{font-weight:800;color:var(--heading);text-align:right;min-width:70px;font-variant-numeric:tabular-nums}
.sw-inpack{grid-column:2 / -1;text-align:right}
.sw-mode{display:inline-flex;gap:6px;align-items:center;flex-wrap:wrap}
.sw-mode select{min-height:34px;max-width:220px}
.sw-own input{width:90px}
.sw-links{margin:0;display:flex;flex-wrap:wrap;gap:4px 10px}
.sw-pack{margin:6px 0;font-size:1.05rem}
.sw-packlist{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:4px}
.sw-packlist li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line);padding:3px 0}
.sw-more>summary{cursor:pointer;font-weight:700;color:var(--brand-fg);min-height:24px}
.sw-maint td{white-space:normal}
.sw-result{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:0}
.sw-result div{border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--card-2)}
.sw-result dt{font-size:.8rem;color:var(--muted);font-weight:700}
.sw-result dd{margin:2px 0 0;font-size:1.2rem;font-weight:800;color:var(--heading)}
#expert>details>summary{cursor:pointer;list-style:none}
#expert>details>summary::-webkit-details-marker{display:none}
#expert>details>summary::after{content:"▾";margin-left:auto;color:var(--muted)}
#expert>details[open]>summary::after{content:"▴"}
.sw-disclaimer{margin:0}
.group{border-top:1px solid var(--line);padding-top:12px}
.group-head{justify-content:space-between;align-items:flex-start;margin-bottom:10px}
.part-name{font-size:1rem;margin:0}
@media (max-width:900px){.sw-story{grid-template-columns:1fr}}
@media (max-width:640px){
  .sw-part{grid-template-columns:1fr auto}
  .sw-part .sw-mode,.sw-part .switch{grid-column:1}
  .sw-result{grid-template-columns:1fr}
  .sw-stepnav a{font-size:.82rem;padding:5px 10px}
}
@media print{#expert,.sw-stepnav{display:none!important}}
.sw-links a{display:inline-flex;align-items:center;min-height:24px;padding:2px 0}
.sw-maint-wrap{max-height:none}