/* Opbouw: kop met twee keuzes (stand en plek) en een stappenplan; daaronder het schema met rechts een zijpaneel;
   daaronder mogelijkheden, grenzen, status en regels. Kleuren als het FODKUA-systeemschema. */
:root {
  --bg: #f7f7f5; --surface: #ffffff; --surface-2: #f0f0ec; --fg: #212121; --muted: #5d6266; --faint: #8b9094;
  --rule: #dcdcd6; --lane: #efefea; --focus: #1565c0; --shadow: rgba(20, 24, 28, .18);
  --green: #2e7d32; --green-bg: #e8f5e9; --green-ink: #1b5e20; --green-strong: #2e7d32;
  --orange: #ef6c00; --orange-bg: #fff3e0; --orange-ink: #a63a07; --orange-strong: #e65100;
  --blue: #1e88e5; --blue-bg: #e3f2fd; --blue-ink: #0d47a1; --blue-strong: #1e88e5;
  --purple: #8e24aa; --purple-bg: #f3e5f5; --purple-ink: #4a148c; --purple-strong: #8e24aa;
  --gray: #546e7a; --gray-bg: #eceff1; --gray-ink: #263238; --gray-strong: #546e7a;
  --teal: #00796b; --teal-bg: #e0f2f1; --teal-ink: #004d40; --teal-strong: #00796b;
  --slate: #263238; --slate-ink: #ffffff; --slate-sub: #cfd8dc; --slate-line: #455a64;
  --off: #9a9a9a; --on-strong: #ffffff; --warn: #8a5a00; --warn-bg: #fff6dd;
  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Roboto, Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121517; --surface: #1a1f22; --surface-2: #22282c; --fg: #e6e8e9; --muted: #a9afb3; --faint: #7d858a;
    --rule: #30373c; --lane: #171c1f; --focus: #90caf9; --shadow: rgba(0, 0, 0, .55);
    --green: #66bb6a; --green-bg: #15271a; --green-ink: #c8e6c9; --green-strong: #2e7d32;
    --orange: #ffa040; --orange-bg: #2c1e10; --orange-ink: #ffe0b2; --orange-strong: #c75000;
    --blue: #64b5f6; --blue-bg: #11243a; --blue-ink: #d6eaff; --blue-strong: #1565c0;
    --purple: #ce93d8; --purple-bg: #28162e; --purple-ink: #f1d9f6; --purple-strong: #7b1fa2;
    --gray: #90a4ae; --gray-bg: #1d2529; --gray-ink: #e0e7ea; --gray-strong: #455a64;
    --teal: #4db6ac; --teal-bg: #0f2523; --teal-ink: #c9ece8; --teal-strong: #00695c;
    --slate: #2a373e; --slate-ink: #ffffff; --slate-sub: #b8c6cc; --slate-line: #7d929c;
    --off: #6f777b; --on-strong: #ffffff; --warn: #ffd27a; --warn-bg: #2b2210;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #121517; --surface: #1a1f22; --surface-2: #22282c; --fg: #e6e8e9; --muted: #a9afb3; --faint: #7d858a;
  --rule: #30373c; --lane: #171c1f; --focus: #90caf9; --shadow: rgba(0, 0, 0, .55);
  --green: #66bb6a; --green-bg: #15271a; --green-ink: #c8e6c9; --green-strong: #2e7d32;
  --orange: #ffa040; --orange-bg: #2c1e10; --orange-ink: #ffe0b2; --orange-strong: #c75000;
  --blue: #64b5f6; --blue-bg: #11243a; --blue-ink: #d6eaff; --blue-strong: #1565c0;
  --purple: #ce93d8; --purple-bg: #28162e; --purple-ink: #f1d9f6; --purple-strong: #7b1fa2;
  --gray: #90a4ae; --gray-bg: #1d2529; --gray-ink: #e0e7ea; --gray-strong: #455a64;
  --teal: #4db6ac; --teal-bg: #0f2523; --teal-ink: #c9ece8; --teal-strong: #00695c;
  --slate: #2a373e; --slate-ink: #ffffff; --slate-sub: #b8c6cc; --slate-line: #7d929c;
  --off: #6f777b; --on-strong: #ffffff; --warn: #ffd27a; --warn-bg: #2b2210;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body { background: var(--bg); color: var(--fg); font: 15px/1.55 var(--font); }
button { font: inherit; color: inherit; }
.wrap { max-width: 1500px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); padding-block: 22px 56px; }
.eyebrow { margin: 0; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
h1 { margin: 4px 0 6px; font-size: clamp(25px, 3.4vw, 34px); line-height: 1.1; letter-spacing: -.015em; text-wrap: balance; }
.lede { margin: 0; color: var(--muted); max-width: 72ch; }
h2 { font-size: 18px; margin: 0 0 10px; text-wrap: balance; }

.controls { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: flex-end; margin: 18px 0 8px; }
.ctl-label { display: block; font-size: 11.5px; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); font-weight: 700; margin-bottom: 6px; }
.seg { display: inline-flex; flex-wrap: wrap; background: var(--surface-2); border: 1px solid var(--rule); border-radius: 12px; padding: 3px; gap: 3px; }
.seg button { border: 0; background: transparent; font-weight: 600; font-size: 14px; padding: 8px 14px; border-radius: 9px; cursor: pointer; min-height: 38px; }
.seg button[aria-checked="true"] { background: var(--slate); color: #fff; }
.seg.mode button[data-mode="play"][aria-checked="true"] { background: var(--orange-strong); }
.seg button:hover:not([aria-checked="true"]) { background: var(--surface); }

.steps { margin: 6px 0 14px; padding: 12px 14px; border: 1px solid var(--rule); border-radius: 14px; background: var(--surface); display: grid; gap: 10px; }
.step-row { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.step-row .lbl { font-size: 11.5px; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); font-weight: 700; margin-right: 6px; }
.stepbtn { border: 1px solid var(--rule); background: var(--surface-2); border-radius: 999px; min-width: 36px; height: 36px; padding: 0 10px; font-weight: 700; cursor: pointer; font-variant-numeric: tabular-nums; }
.stepbtn[aria-pressed="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.stepbtn.nav { font-weight: 600; }
#step-text { margin: 0; min-height: 3em; }
#step-text b { font-size: 15.5px; }

.layout { display: grid; gap: 18px; }
@media (min-width: 1100px) { .layout { grid-template-columns: minmax(0, 1fr) 380px; align-items: start; } }
.stage { background: var(--surface); border: 1px solid var(--rule); border-radius: 16px; padding: 8px; min-width: 0; }
.stage-bar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 6px 12px; padding: 4px 6px 8px; font-size: 13px; color: var(--muted); }
.stage-bar button { border: 1px solid var(--rule); background: var(--surface-2); border-radius: 999px; padding: 6px 12px; font-weight: 600; font-size: 13px; cursor: pointer; min-height: 34px; }
.scroller { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 10px; }
#map { display: block; width: 100%; height: auto; font-family: var(--font); user-select: none; -webkit-user-select: none; }
.stage.big #map { width: 980px; max-width: none; }
#state-pill { font-weight: 700; color: var(--fg); }

/* schema */
.c-green { --c: var(--green); --c-bg: var(--green-bg); --c-ink: var(--green-ink); --c-strong: var(--green-strong); }
.c-orange { --c: var(--orange); --c-bg: var(--orange-bg); --c-ink: var(--orange-ink); --c-strong: var(--orange-strong); }
.c-blue { --c: var(--blue); --c-bg: var(--blue-bg); --c-ink: var(--blue-ink); --c-strong: var(--blue-strong); }
.c-purple { --c: var(--purple); --c-bg: var(--purple-bg); --c-ink: var(--purple-ink); --c-strong: var(--purple-strong); }
.c-gray { --c: var(--gray); --c-bg: var(--gray-bg); --c-ink: var(--gray-ink); --c-strong: var(--gray-strong); }
.c-teal { --c: var(--teal); --c-bg: var(--teal-bg); --c-ink: var(--teal-ink); --c-strong: var(--teal-strong); }
.c-slate { --c: var(--slate-line); --c-bg: var(--slate); --c-ink: var(--slate-ink); --c-strong: var(--slate); }
.bg-lane { fill: var(--lane); }
.node { cursor: pointer; transition: opacity .2s; outline: none; }
.node .box { fill: var(--c-bg); stroke: var(--c); stroke-width: 2; transition: fill .2s, stroke .2s; }
.node .n-t { font-weight: 700; font-size: 16px; fill: var(--c-ink); }
.node .n-t.xl { font-size: 22px; }
.node .n-s { font-size: 12.5px; fill: var(--c); }
.node .n-l { font-size: 12.5px; fill: var(--fg); }
.c-slate .n-s { fill: var(--slate-sub); }
.k-strong .box { fill: var(--c-strong); stroke: none; }
.k-strong .n-t, .k-strong .n-s { fill: var(--on-strong); }
.k-strong .n-s { opacity: .92; }
.node .n-x { font-size: 12px; font-weight: 700; fill: var(--on-strong); letter-spacing: .06em; }
#sw-state { font-size: 15px; font-weight: 800; letter-spacing: .08em; fill: var(--on-strong); }
.node.dimmed { opacity: .32; }
.node.sel > .box { stroke: var(--fg); stroke-width: 3.5; }
.node.k-strong.sel > .box { stroke: var(--fg); stroke-width: 3; }
.node:focus-visible > .box { stroke: var(--focus); stroke-width: 4; }
.node.step > .box { stroke: var(--fg); stroke-width: 3.5; stroke-dasharray: 6 4; }

.e-green { --ec: var(--green); --eci: var(--green-ink); }
.e-orange { --ec: var(--orange); --eci: var(--orange-ink); }
.e-blue { --ec: var(--blue); --eci: var(--blue-ink); }
.e-purple { --ec: var(--purple); --eci: var(--purple-ink); }
.e-gray { --ec: var(--gray); --eci: var(--gray-ink); }
.e-teal { --ec: var(--teal); --eci: var(--teal-ink); }
.mk-green { fill: var(--green); } .mk-orange { fill: var(--orange); } .mk-blue { fill: var(--blue); } .mk-purple { fill: var(--purple); } .mk-gray { fill: var(--gray); } .mk-teal { fill: var(--teal); }
.edge { cursor: pointer; outline: none; transition: opacity .2s; }
.edge .hit { fill: none; stroke: transparent; stroke-width: 16; }
.edge .ln { fill: none; stroke: var(--ec); stroke-width: 3.6; stroke-linejoin: round; }
.edge.on .ln { stroke-dasharray: 12 7; animation: flow 1.1s linear infinite; }
.edge.off { opacity: .16; }
.edge.off .ln { stroke-dasharray: 3 5; stroke-width: 2.4; }
@keyframes flow { to { stroke-dashoffset: -19; } }
@media (prefers-reduced-motion: reduce) { .edge.on .ln { animation: none; } }
.elabel .el-t { font-size: 12px; font-weight: 600; fill: var(--eci); paint-order: stroke; stroke: var(--lane); stroke-width: 4px; stroke-linejoin: round; }
.elabel.on-slate .el-t { stroke: var(--slate); fill: #fff; }
.elabel.off { opacity: .2; }
#map.focus .node:not(.lit) { opacity: .2; }
#map.focus .edge:not(.lit) { opacity: .08; }
#map.focus .elabel:not(.lit) { opacity: .1; }
.edge.lit .ln { stroke-width: 4.6; }

/* paneel */
.panel { background: var(--surface); border: 1px solid var(--rule); border-radius: 16px; padding: 18px 20px 24px; min-width: 0; }
@media (min-width: 1100px) {
  .panel { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 12px); max-height: calc(100vh - 24px); overflow: auto; }
  .panel:not(.has-sel) #panel-close { display: none; }
}
.panel-top { display: flex; justify-content: flex-end; }
#panel-close { border: 1px solid var(--rule); background: var(--surface-2); border-radius: 999px; padding: 5px 12px; font-size: 13px; font-weight: 600; cursor: pointer; min-height: 32px; }
@media (max-width: 1099px) {
  .panel { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; max-height: 78vh; overflow: auto; border-radius: 18px 18px 0 0;
    transform: translateY(105%); visibility: hidden; transition: transform .22s ease, visibility 0s linear .22s; box-shadow: 0 -10px 34px var(--shadow);
    padding-left: max(18px, env(safe-area-inset-left, 0px)); padding-right: max(18px, env(safe-area-inset-right, 0px)); padding-bottom: calc(24px + env(safe-area-inset-bottom, 0px)); }
  .panel.open { transform: none; visibility: visible; transition: transform .22s ease; }
  .panel-top { position: sticky; top: -18px; margin-top: -18px; padding-top: 12px; background: var(--surface); z-index: 1; }
}
@media (prefers-reduced-motion: reduce) { .panel, .node, .edge { transition: none !important; } }
.panel h2 { font-size: 21px; margin: 6px 0 2px; outline: none; }
.panel h3 { font-size: 11.5px; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); margin: 18px 0 6px; }
.p-sub { margin: 0; color: var(--muted); }
.lead { margin: 10px 0 0; }
.modebox { display: grid; gap: 8px; margin-top: 12px; }
.modebox div { padding: 10px 12px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--rule); font-size: 14px; }
.modebox div.cur { border-color: var(--fg); }
.modebox b { display: block; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.note { margin: 0; font-size: 14px; padding: 10px 12px; border-radius: 10px; background: var(--surface-2); }
.intro ul { margin: 6px 0 0; padding-left: 18px; display: grid; gap: 4px; font-size: 14px; }
.panel :focus-visible, .seg button:focus-visible, .stepbtn:focus-visible, .stage-bar button:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

/* onder het schema */
.below { display: grid; gap: 18px; margin-top: 22px; }
.card { background: var(--surface); border: 1px solid var(--rule); border-radius: 16px; padding: 18px 20px; min-width: 0; }
.benefits { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); margin: 0; padding: 0; list-style: none; }
.benefits li { border: 1px solid var(--rule); border-radius: 12px; padding: 12px 14px; background: var(--bg); display: grid; gap: 4px; align-content: start; }
.benefits b { font-size: 15px; }
.benefits span { font-size: 14px; color: var(--muted); }
.benefits .who { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--c); }
.two { display: grid; gap: 18px; }
@media (min-width: 900px) { .two { grid-template-columns: 1fr 1fr; } }
ul.plain { margin: 0; padding-left: 18px; display: grid; gap: 7px; font-size: 14.5px; }
.status { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.status li { display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: start; font-size: 14.5px; }
.pill { font-size: 12px; font-weight: 700; padding: 2px 9px; border-radius: 999px; border: 1px solid var(--rule); white-space: nowrap; }
.pill.ok { background: var(--green-bg); color: var(--green-ink); border-color: var(--green); }
.pill.todo { background: var(--warn-bg); color: var(--warn); border-color: var(--warn); }
.pill.idea { background: var(--surface-2); color: var(--muted); border-style: dashed; }
.foot { color: var(--muted); font-size: 13px; margin-top: 22px; max-width: 95ch; }
code { font-size: 13px; background: var(--surface-2); padding: 0 4px; border-radius: 4px; }

body{margin:0}h1{font-size:32px}.wrap{padding:22px 16px 56px}a,button,summary{touch-action:manipulation}a:focus,button:focus,summary:focus{outline:3px solid var(--focus);outline-offset:3px}.topbar>*{margin-bottom:12px}.start-nav{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:12px 16px;border-bottom:1px solid var(--rule);background:var(--surface)}.start-nav>a{font-weight:800}.start-theme{display:inline-flex;flex-wrap:wrap}.start-theme button{min-height:44px;margin:3px;padding:7px 10px;cursor:pointer;border-radius:8px;border:1px solid var(--rule);background:var(--surface-2);color:var(--fg)}.start-theme [aria-pressed=true]{border-color:var(--focus);font-weight:800}.key{white-space:normal}.sheet{min-width:0}.sheet-head>*{margin-bottom:6px}.card .meta>*{margin-right:8px}.card a.go,.path{overflow-wrap:break-word;word-wrap:break-word}.who td{overflow-wrap:break-word}main{min-width:0}.text-page{max-width:800px}.text-page li{margin:12px 0}.text-page .sheet{max-width:none}.text-page .lead{font-size:18px}.schema-explainer{padding:12px 16px;background:var(--surface-2);border-bottom:1px solid var(--rule);font-size:14px}.schema-explainer p{margin:4px 0}.schema-explainer a{margin-right:12px}@media(max-width:420px){.cards,.tiles{grid-template-columns:minmax(0,1fr)}.sheet{padding:16px}.wrap{padding-left:12px;padding-right:12px}.who{font-size:13px}.who th,.who td{padding:6px}.sheet-head{display:block}}@media print{.start-nav,.schema-explainer{display:none!important}}
.status,.status li,.status li>span{min-width:0}.status li{grid-template-columns:auto minmax(0,1fr)}code{white-space:normal;overflow-wrap:break-word;word-wrap:break-word;word-break:break-word}
.app-downloads h3,.app-webapps h3{font-size:19px;margin:20px 0 8px}.app-downloads .cards{grid-template-columns:minmax(0,1fr)}.app-downloads .card a.go{justify-self:start;display:inline-block;padding:12px 18px;min-height:44px;border-radius:8px;background:var(--orange);color:#101317;font-weight:800}.app-webapps{margin-top:28px;padding-top:4px;border-top:2px solid var(--rule)}.app-joop{margin-top:22px;color:var(--muted);font-size:14px}
.pill.concept{color:var(--orange);border-color:currentColor}