/* Learn Color Design — course styles (same shell family as Learn Wedding Florals / Learn General Contracting).
   The interface is a quiet, stable setting for studying color: warm ivory ground, deep olive type and controls,
   muted ochre only as a decorative accent (fine rules, the active-page mark, link underlines; never small text,
   since it measures about 2.8:1 on ivory). Strong color is reserved for the teaching examples, which sit on their
   own fixed neutral gray surround (--studio) that no interface theme changes. */
:root{
  --ivory:#F5F2EB; --olive:#343C32; --ochre:#B28A45;
  --bg:#F5F2EB;            /* dominant ground */
  --card:#FAF8F3;          /* the one panel surface, a step lighter than the ground */
  --field:#FCFBF8;         /* form fields */
  --sel:#ECE7DC;           /* selected / pressed fill */
  --ink:#343C32; --ink2:#4A5246; --muted:#5F6459;
  --line:#DDD6C8;          /* hairline */
  --rule:#C3BAA8;          /* section rule */
  --ctl-line:#8A8577;      /* control borders, 3:1 on ivory */
  --ctl-bg:#343C32; --ctl-ink:#F5F2EB;
  --mark:#EFE5D1;
  --radius:2px; --measure:40rem; --wide:74rem;
  --studio:#8a8a8a;        /* fixed neutral surround for color exercises; never changes with theme */
  /* older names used by page diagrams, mapped onto the quiet palette */
  --accent:var(--olive); --accent2:var(--line); --teal:var(--olive); --brass:#6E5A30; --mauve:var(--olive);
  --tip-bg:var(--card); --yw-bg:var(--card); --yw-line:var(--line); --warn-bg:var(--card); --warn-line:var(--line);
  --bg2:var(--bg); --shadow:none;
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --bg:#1C1E1A; --card:#23261F; --field:#262922; --sel:#30342B;
  --ink:#E9E5DB; --ink2:#D3CFC4; --muted:#A3A598; --line:#353930; --rule:#4A4F44; --ctl-line:#7D8073;
  --ctl-bg:#E9E5DB; --ctl-ink:#1C1E1A; --mark:#3D3626; --brass:#C9A86A;
  --accent:var(--ink); --teal:var(--ink); --mauve:var(--ink);
}}
:root[data-theme="dark"]{
  --bg:#1C1E1A; --card:#23261F; --field:#262922; --sel:#30342B;
  --ink:#E9E5DB; --ink2:#D3CFC4; --muted:#A3A598; --line:#353930; --rule:#4A4F44; --ctl-line:#7D8073;
  --ctl-bg:#E9E5DB; --ctl-ink:#1C1E1A; --mark:#3D3626; --brass:#C9A86A;
  --accent:var(--ink); --teal:var(--ink); --mauve:var(--ink);
}

/* ---------- base type ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:"Cormorant Garamond",Georgia,"Times New Roman",serif;font-weight:600;line-height:1.12;margin:0 0 .6rem;color:var(--ink)}
h1{font-size:3.1rem;letter-spacing:-.012em;line-height:1.04}
h1::after{content:"";display:block;width:3rem;height:2px;background:var(--ochre);margin-top:.9rem}
h2{font-size:2.05rem;letter-spacing:-.005em;margin-top:4.5rem;padding-top:2.2rem;border-top:1px solid var(--rule);display:flex;flex-direction:column-reverse;align-items:flex-start;gap:.55rem}
h2:first-of-type{margin-top:2.6rem}
h3{font-size:1.45rem;margin-top:2.6rem}
h4{margin-top:1.8rem;font-family:"Inter",system-ui,sans-serif;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.16em;font-size:.7rem}
p{margin:.7rem 0 1.1rem}
a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--ochre);text-decoration-thickness:1px;text-underline-offset:.22em}
a:hover{text-decoration-color:var(--ink);text-decoration-thickness:1.5px}
ul,ol{padding-left:1.3rem;margin:.5rem 0 1.2rem}
li{margin:.35rem 0}
li::marker{color:var(--muted)}
strong{font-weight:600}
em{font-style:italic}
code{font-family:ui-monospace,Menlo,monospace;font-size:.88em;background:var(--card);border:1px solid var(--line);padding:.05em .35em;border-radius:var(--radius)}
hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0}
.eyebrow{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:.7rem}
.lede{font-family:"Cormorant Garamond",Georgia,serif;font-weight:500;font-size:1.5rem;line-height:1.38;color:var(--ink2);max-width:34em;margin:1rem 0 1.6rem}
.small{font-size:.85rem;color:var(--muted)}
.meta-line{font-size:.85rem;color:var(--muted);margin:-.4rem 0 1rem}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:264px minmax(0,1fr);min-height:100vh}
main{padding:2.6rem 3rem 6rem;min-width:0}
main > .content{max-width:var(--measure);margin:0 auto}
main > .content.wide{max-width:var(--wide)}
main > .pager,main > .site-footer{max-width:var(--measure);margin-left:auto;margin-right:auto}
main:has(> .content.wide) > .pager,main:has(> .content.wide) > .site-footer{max-width:var(--wide)}
.wide{max-width:none}
.hero{padding:0}
.start{display:flex;align-items:center;gap:.6rem 1.3rem;flex-wrap:wrap;margin:0 0 .4rem}
.start-note{margin:0;font-size:.84rem;line-height:1.5;color:var(--muted);flex:1 1 16rem;max-width:26rem}
.hero + .callout.yh{margin-top:1.8rem}
.hero-image{margin:2rem 0 .5rem}
.hero-image img{display:block;width:100%;height:auto;border-radius:var(--radius)}
.hero-image figcaption{font-size:.8rem;color:var(--muted);margin-top:.6rem;line-height:1.5}
.two{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}

/* ---------- sidebar: light, dark text, fine rule, restrained active mark ---------- */
nav.side{background:var(--bg);color:var(--ink);border-right:1px solid var(--line);padding:2.2rem 1.3rem 2.4rem 1.5rem;position:sticky;top:0;height:100vh;overflow-y:auto}
nav.side .brand{font-family:"Cormorant Garamond",serif;font-size:1.45rem;font-weight:600;line-height:1.15;color:var(--ink);text-decoration:none;display:block;margin-bottom:.4rem}
nav.side .brand small{display:block;font-family:"Inter",sans-serif;font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-top:.45rem;font-weight:600}
nav.side .brand .dots{display:none}
nav.side .group{margin-top:1.7rem}
nav.side .group h5{font-family:"Inter",sans-serif;font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin:0 0 .5rem;font-weight:600}
nav.side a.item{display:flex;gap:.6rem;align-items:baseline;padding:.3rem .4rem .3rem .7rem;margin-left:-.7rem;border-left:2px solid transparent;color:var(--ink2);text-decoration:none;font-size:.88rem;line-height:1.35}
nav.side a.item:hover{color:var(--ink);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:.2em}
nav.side a.item.active{color:var(--ink);font-weight:600;border-left-color:var(--ochre)}
nav.side a.item .n{font-family:"Cormorant Garamond",serif;font-weight:600;color:var(--muted);min-width:1.2rem;font-size:.98rem}
nav.side a.item .done{margin-left:auto;color:var(--muted);font-size:.75rem}
nav.side .progress{margin-top:1.8rem;padding:1rem 0 0;border-top:1px solid var(--line);font-size:.78rem;color:var(--ink2);line-height:1.5}
nav.side .progress + .progress{margin-top:1rem}
nav.side .bar{height:2px;background:var(--line);overflow:hidden;margin:.5rem 0}
nav.side .bar i{display:block;height:100%;background:var(--ink);width:0;transition:width .4s}
.topbar{display:none}

/* ---------- panels and rules ----------
   One panel style (the "Your home" boxes, results) and one rule style (every other aside).
   The small label says what kind of aside it is; color never does. */
.callout{background:transparent;border:0;border-top:1px solid var(--rule);border-bottom:1px solid var(--line);padding:1.1rem 0 1.2rem;margin:2.2rem 0;border-radius:0;font-size:.96rem}
.callout .tag{display:block;font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;font-weight:600;color:var(--muted);margin-bottom:.45rem}
.callout p:last-child,.callout ul:last-child{margin-bottom:0}
.callout.yh,.result{background:var(--card);border:1px solid var(--line);padding:1.3rem 1.5rem 1.4rem;border-radius:var(--radius)}
.callout.warn,.callout.fiction,.callout.boundary{background:transparent}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem 1.4rem;margin:1.2rem 0}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:0 1.6rem;margin:1.6rem 0;border-top:1px solid var(--rule)}
.cards .card{margin:0;background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0;padding:1.3rem 0 1.2rem}
.card h3{margin-top:.15rem;font-size:1.3rem}
.card .n{font-family:"Cormorant Garamond",serif;font-size:1.1rem;color:var(--muted);font-weight:600}
.card p{font-size:.93rem;color:var(--ink2);margin-bottom:.4rem}
.card .count{float:right;font-family:"Cormorant Garamond",serif;font-size:1.5rem;color:var(--muted);font-weight:600}
figure.diagram{margin:2rem 0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem}
figure.diagram svg{width:100%;height:auto;display:block}
figure.diagram figcaption{font-size:.84rem;color:var(--muted);margin-top:.7rem;line-height:1.55}

/* ---------- lists and steps ---------- */
.steps{counter-reset:step;list-style:none;padding-left:0}
.steps>li{counter-increment:step;position:relative;padding-left:2.7rem;margin:1.1rem 0}
.steps>li::before{content:counter(step);position:absolute;left:0;top:.1rem;width:1.75rem;height:1.75rem;border-radius:50%;border:1px solid var(--ink);color:var(--ink);font-weight:600;display:flex;align-items:center;justify-content:center;font-size:.78rem;font-family:"Inter",sans-serif}
.steps>li strong:first-child{display:block;margin-bottom:.15rem}
.check{list-style:none;padding-left:0;border-top:1px solid var(--line)}
.check li{display:flex;gap:.7rem;align-items:flex-start;padding:.55rem 0;margin:0;border-bottom:1px solid var(--line)}
.check li input{margin-top:.35rem;accent-color:var(--olive);width:1rem;height:1rem;flex:none}
.check li label{cursor:pointer}
.check li.done label{color:var(--muted);text-decoration:line-through;text-decoration-color:var(--rule)}
.toc{font-size:.88rem;border-top:1px solid var(--rule);border-bottom:1px solid var(--line);padding:1rem 0 1.1rem;margin:0 0 1rem}
.toc::before{content:"In this page";display:block;font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;font-weight:600;color:var(--muted);margin-bottom:.5rem}
.toc ol{margin:0;padding-left:1.3rem;columns:2;column-gap:2.4rem}
.toc li{break-inside:avoid;margin:.2rem 0}
.toc a{text-decoration:none;color:var(--ink2)}
.toc a:hover{color:var(--ink);text-decoration:underline;text-decoration-color:var(--ochre)}

/* ---------- tables ---------- */
table{width:100%;border-collapse:collapse;font-size:.9rem;margin:1.2rem 0 1.8rem;background:transparent}
th,td{padding:.6rem .7rem .6rem 0;border:0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{font-weight:600;font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--rule)}
.table-wrap{overflow-x:auto;margin:1.2rem 0 1.8rem;border-top:1px solid var(--rule)}
.table-wrap table{margin:0}

/* ---------- claim-type and status labels: the words do the work ---------- */
.pill{display:inline-block;padding:.08em .5em;border-radius:var(--radius);font-size:.62rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;white-space:nowrap;border:1px solid var(--ctl-line);color:var(--ink2);background:transparent;vertical-align:.15em;line-height:1.6}
.pill.test,.pill.status-confirmed{background:var(--ctl-bg);color:var(--ctl-ink);border-color:var(--ctl-bg)}
.pill.status-unresolved{border-style:dashed}
.pill.term,.pill.practitioner{background:transparent;color:var(--ink2);border:1px solid var(--ctl-line)}

/* ---------- interaction ---------- */
.btn{font:inherit;font-size:.86rem;padding:.5rem 1rem;border-radius:var(--radius);border:1px solid var(--ctl-bg);background:var(--ctl-bg);color:var(--ctl-ink);cursor:pointer;font-weight:500;letter-spacing:.02em}
.btn.secondary{background:transparent;color:var(--ink);border-color:var(--ctl-line)}
.btn.small{font-size:.78rem;padding:.3rem .65rem}
a.btn{display:inline-block;text-decoration:none;line-height:1.3}
a.btn:hover{background:var(--ink2);border-color:var(--ink2)}
a.btn.secondary:hover{background:var(--sel);border-color:var(--ink)}
.btn.large{font-size:.95rem;padding:.75rem 1.4rem;letter-spacing:.03em}
.print-btn{font:inherit;font-size:.78rem;padding:.3rem .7rem;border:1px solid var(--ctl-line);border-radius:var(--radius);background:transparent;color:var(--ink);cursor:pointer}
.filter{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center;margin:1.2rem 0}
.filter input[type=search]{flex:1;min-width:200px;padding:.55rem .75rem;border:1px solid var(--ctl-line);border-radius:var(--radius);background:var(--field);color:var(--ink);font:inherit;font-size:.92rem}
.filter button{padding:.35rem .75rem;border:1px solid var(--ctl-line);background:transparent;color:var(--ink);border-radius:var(--radius);font:inherit;font-size:.78rem;cursor:pointer}
.filter button.on{background:var(--ctl-bg);color:var(--ctl-ink);border-color:var(--ctl-bg)}
.lesson-complete{margin-top:2.6rem;padding:1rem 1.2rem;border:1px solid var(--line);border-radius:var(--radius);display:flex;align-items:center;gap:.8rem;background:var(--card);flex-wrap:wrap}
.lesson-complete input{width:1.15rem;height:1.15rem;accent-color:var(--olive)}
.lesson-complete label{font-weight:600;cursor:pointer}
.pager{display:flex;justify-content:space-between;gap:1.5rem;margin-top:4rem;padding-top:0;font-size:.95rem}
.pager a{text-decoration:none;padding:1rem 0 0;border-top:1px solid var(--rule);color:var(--ink);font-family:"Cormorant Garamond",serif;font-size:1.2rem;font-weight:600;line-height:1.25;max-width:48%;flex:1}
.pager a:hover{border-top-color:var(--ochre)}
.pager a span{display:block;font-family:"Inter",sans-serif;font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:.3rem}
.theme-toggle{position:fixed;right:14px;bottom:14px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:.3rem .65rem;font:inherit;font-size:.72rem;cursor:pointer;color:var(--muted);z-index:30}
.part{display:inline-block;font-family:"Inter",sans-serif;font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;font-weight:600;color:var(--muted);border:0;padding:0;margin:0;background:transparent;line-height:1.4}
h2 .part{margin:0}

/* knowledge checks and scenarios */
.quiz{border-top:1px solid var(--rule);margin:1.4rem 0}
.quiz details{border-bottom:1px solid var(--line);padding:.75rem 0}
.quiz summary{cursor:pointer;font-weight:600;color:var(--ink)}
.quiz summary::marker{color:var(--muted)}
.quiz .a{margin:.6rem 0 .2rem 1.1rem;font-size:.95rem;color:var(--ink2)}
.scenario{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:1.3rem 1.5rem;margin:1.8rem 0}
.scenario .q{font-weight:600;margin-bottom:.8rem}
.scenario .opts{display:flex;flex-direction:column;gap:.5rem}
.scenario button{text-align:left;font:inherit;font-size:.93rem;padding:.65rem .85rem;border:1px solid var(--ctl-line);border-radius:var(--radius);background:var(--field);color:var(--ink);cursor:pointer;line-height:1.5}
.scenario button:hover{border-color:var(--ink)}
.scenario button.picked{border-color:var(--ink);background:var(--sel);box-shadow:inset 2px 0 0 var(--ink)}
.scenario .fb{display:none;margin-top:1rem;padding:.2rem 0 .2rem 1rem;border-left:2px solid var(--ink);font-size:.94rem}
.scenario .fb.on{display:block}

/* annotated document */
.doc{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.82rem;line-height:1.55;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.1rem 1.3rem;margin:1.2rem 0;white-space:pre-wrap;overflow-x:auto}
.doc mark{background:var(--mark);color:inherit;padding:0 .15em}
.doc .note{display:block;color:var(--brass);font-family:"Inter",sans-serif;font-size:.78rem;margin:.1rem 0 .4rem 1.2rem}
.doc .note::before{content:"↳ "}

/* ---------- workbook tools ---------- */
.tool-bar{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center;margin:1rem 0}
.tool-bar .spacer{flex:1}
.tool table{font-size:.86rem}
.tool th{white-space:nowrap}
.tool td{padding:.35rem .4rem .35rem 0;vertical-align:top}
.tool input[type=text],.tool input[type=number],.tool input[type=date],.tool input[type=time],.tool select,.tool textarea{width:100%;min-width:90px;padding:.35rem .45rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--field);color:var(--ink);font:inherit;font-size:.86rem}
.tool input:hover,.tool select:hover,.tool textarea:hover{border-color:var(--ctl-line)}
.tool textarea{min-height:2.6rem;resize:vertical}
.tool input[type=checkbox]{width:1rem;height:1rem;accent-color:var(--olive)}
.tool input[type=color]{width:2.6rem;height:2rem;padding:0;border:1px solid var(--ctl-line);border-radius:var(--radius);background:var(--field);cursor:pointer}
.tool td.num input{text-align:right}
.tool .del{font:inherit;font-size:.78rem;border:1px solid var(--line);background:transparent;color:var(--muted);border-radius:var(--radius);padding:.15rem .45rem;cursor:pointer}
.tool .del:hover{color:var(--ink);border-color:var(--ink)}
.tool tfoot td{font-weight:600}
.tool .empty{padding:1.2rem;color:var(--muted);font-size:.88rem;text-align:center}
.tool.fields .field{margin:1rem 0}
.tool.fields label{display:block;font-size:.9rem;margin-bottom:.3rem}
.tool.fields input[type=text],.tool.fields select,.tool.fields textarea{width:100%;max-width:var(--measure)}
.storage-note{font-size:.8rem;color:var(--muted);border-top:1px solid var(--line);padding:.6rem 0 0;margin:1rem 0 1.4rem}
.status{font-size:.8rem;color:var(--muted);margin-left:.4rem}
.setup-note{font-size:.85rem;color:var(--muted)}
.kv{display:grid;grid-template-columns:max-content 1fr;gap:.35rem 1.2rem;font-size:.93rem}
.kv b{color:var(--muted);font-weight:600}

/* ---------- setup form ---------- */
.form fieldset{border:0;border-top:1px solid var(--rule);padding:1.4rem 0 1rem;margin:2rem 0 0;background:transparent}
.form legend{font-family:"Cormorant Garamond",serif;font-size:1.5rem;font-weight:600;padding:0 .7rem 0 0;color:var(--ink)}
.form .row{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem 1.4rem}
.form label{display:flex;flex-direction:column;gap:.35rem;font-size:.88rem;color:var(--ink2)}
.form input[type=text],.form input[type=number],.form input[type=month],.form select,.form textarea{padding:.5rem .6rem;border:1px solid var(--ctl-line);border-radius:var(--radius);background:var(--field);color:var(--ink);font:inherit;font-size:.96rem}
.form textarea{min-height:4rem;resize:vertical}
.form .chips{display:flex;flex-wrap:wrap;gap:.45rem;margin:.5rem 0 .9rem}
.form .chips label,.form .radios label{flex-direction:row;align-items:center;gap:.45rem;border:1px solid var(--line);border-radius:var(--radius);padding:.3rem .7rem;background:var(--field);cursor:pointer;font-size:.86rem;color:var(--ink)}
.form .chips label:hover,.form .radios label:hover{border-color:var(--ctl-line)}
.form .chips label:has(input:checked),.form .radios label:has(input:checked){background:var(--sel);border-color:var(--ink)}
.form input[type=checkbox],.form input[type=radio]{accent-color:var(--olive)}
.form .radios{display:flex;flex-direction:column;gap:.45rem}
.form .radios label{align-items:flex-start}
.form .actions{display:flex;gap:.8rem;flex-wrap:wrap;align-items:center;margin:1.8rem 0}
.form details.more{margin:2rem 0}
.form details.more summary{cursor:pointer;font-weight:600;padding:.8rem 0;border-top:1px solid var(--rule);border-bottom:1px solid var(--line)}
.sharebox{display:none;font-family:ui-monospace,Menlo,monospace;font-size:.76rem;word-break:break-all;background:var(--card);border:1px solid var(--line);padding:.6rem .8rem;margin:.6rem 0}

/* ---------- color teaching components: fixed gray surround, neutral controls ---------- */
.studio{background:var(--studio);color:#111;border-radius:var(--radius);padding:1rem;margin:1.4rem 0;border:1px solid #777}
.studio,.studio *{color-scheme:light}
.studio .lbl{display:inline-block;background:#fff;color:#111;font-family:"Inter",sans-serif;font-size:.74rem;padding:.12em .5em;border-radius:2px;font-weight:600;line-height:1.3}
.studio .lbl.dk{background:#111;color:#fff}
.studio-cap{font-size:.8rem;color:var(--muted);margin:.5rem 0 1.4rem;line-height:1.5}
.studio .ctl{display:flex;gap:.5rem;flex-wrap:wrap;margin:.6rem 0 .2rem}
.studio .ctl button{font:inherit;font-size:.8rem;padding:.35rem .75rem;border-radius:2px;border:1px solid #555;background:#f4f1ea;color:#111;cursor:pointer}
.studio .ctl button[aria-pressed="true"]{background:#262421;color:#fff;border-color:#262421}
.studio .ctl button:focus-visible{outline:3px solid #fff;outline-offset:2px}
.demo{margin:1.6rem 0}
.demo h4{margin-top:0}
.demo .ctl{display:flex;gap:.45rem;flex-wrap:wrap;margin:.6rem 0}
.demo .ctl button{font:inherit;font-size:.8rem;padding:.35rem .75rem;border-radius:var(--radius);border:1px solid var(--ctl-line);background:transparent;color:var(--ink);cursor:pointer}
.demo .ctl button[aria-pressed="true"]{background:var(--ctl-bg);color:var(--ctl-ink);border-color:var(--ctl-bg)}
.demo .ctl label{font-size:.85rem;display:flex;align-items:center;gap:.4rem}
.demo .ctl input[type=range],.attr input[type=range]{accent-color:var(--olive);width:140px}
.demo .readout{font-size:.86rem;color:var(--ink2);margin:.4rem 0}
.demo .note{font-size:.84rem;color:var(--muted);margin:.4rem 0}
/* swatches: always carry a text label so print and grayscale still work */
.sw{display:inline-flex;flex-direction:column;align-items:stretch;width:112px;margin:.3rem;vertical-align:top;font-family:"Inter",sans-serif}
.sw i{display:block;height:64px;border-radius:2px;border:1px solid rgba(0,0,0,.25);print-color-adjust:exact;-webkit-print-color-adjust:exact}
.sw span{font-size:.72rem;line-height:1.25;margin-top:.3rem;color:inherit}
.sw span b{display:block;font-weight:600}
.sw.lg{width:160px}.sw.lg i{height:96px}
.sw.sm{width:84px}.sw.sm i{height:44px}
.studio .sw span{background:#fff;color:#111;padding:.15em .4em;border-radius:2px}
.swrow{display:flex;flex-wrap:wrap;gap:.2rem;align-items:flex-start}
.surround{display:inline-grid;place-items:center;width:150px;height:150px;border-radius:2px;margin:.3rem;position:relative;print-color-adjust:exact;-webkit-print-color-adjust:exact}
.surround i{display:block;width:54px;height:54px;border-radius:2px;print-color-adjust:exact;-webkit-print-color-adjust:exact}
.surround span{position:absolute;left:6px;bottom:6px;font-size:.68rem;background:#fff;color:#111;padding:.1em .4em;border-radius:2px;font-weight:600}
.propbar{display:flex;height:44px;border-radius:2px;overflow:hidden;border:1px solid rgba(0,0,0,.25);margin:.6rem 0;print-color-adjust:exact;-webkit-print-color-adjust:exact}
.propbar i{display:flex;align-items:flex-end;justify-content:center;font-size:.7rem;font-weight:600;padding-bottom:.2rem;min-width:0;overflow:hidden;white-space:nowrap}
.proplegend{display:flex;flex-wrap:wrap;gap:.3rem 1rem;font-size:.82rem;margin:.3rem 0}
.proplegend i{display:inline-block;width:.9em;height:.9em;border-radius:2px;border:1px solid rgba(0,0,0,.3);vertical-align:-.1em;margin-right:.3em;print-color-adjust:exact;-webkit-print-color-adjust:exact}
.rooms{display:flex;flex-wrap:wrap;gap:1rem;align-items:flex-start}
.room{flex:1 1 260px;max-width:420px}
.room svg{width:100%;height:auto;display:block;border-radius:2px;border:1px solid #666}
.room .cap{font-size:.78rem;margin-top:.3rem}
.studio .room .cap{background:#fff;color:#111;padding:.2em .5em;border-radius:2px;display:inline-block}
.attr{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.8rem;align-items:center}
.attr label{display:flex;flex-direction:column;font-size:.82rem;gap:.2rem}
.dot{display:inline-block;width:.9em;height:.9em;border-radius:50%;border:1px solid rgba(0,0,0,.3);vertical-align:-.1em;margin-right:.35em;print-color-adjust:exact;-webkit-print-color-adjust:exact}
.sightmap svg{width:100%;height:auto;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}

/* ---------- small screens ---------- */
@media (max-width: 900px){
  .layout{grid-template-columns:minmax(0,1fr)}
  nav.side{position:fixed;left:0;top:0;width:min(86vw,320px);transform:translateX(-105%);transition:transform .25s;z-index:50;box-shadow:0 0 0 1px var(--line),0 12px 40px rgba(0,0,0,.12)}
  nav.side.open{transform:none}
  .topbar{display:flex;align-items:center;gap:.9rem;padding:.7rem 16px;background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
  .topbar button{font:inherit;font-size:.82rem;padding:.35rem .7rem;border:1px solid var(--ctl-line);border-radius:var(--radius);background:transparent;color:var(--ink)}
  .topbar .t{font-family:"Cormorant Garamond",serif;font-weight:600;font-size:1.15rem;color:var(--ink)}
  main{padding:1.6rem 16px 4rem}
  h1{font-size:2.3rem}
  h2{font-size:1.75rem;margin-top:3.4rem;padding-top:1.8rem}
  .lede{font-size:1.3rem}
  .toc ol{columns:1}
  .two,.three{grid-template-columns:1fr}
  .pager{flex-direction:column}.pager a{max-width:none}
  .scrim{position:fixed;inset:0;background:rgba(28,30,26,.3);z-index:45;display:none}.scrim.on{display:block}
  .surround{width:120px;height:120px}
  .sw{width:92px}.sw i{height:52px}
  .scenario,.callout.yh{padding:1.1rem 1.1rem 1.2rem}
}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto} nav.side{transition:none} }

/* ---------- print ---------- */
@media print{
  nav.side,.topbar,.theme-toggle,.pager,.lesson-complete,.print-btn,.filter,.demo .ctl,.studio .ctl{display:none!important}
  .layout{display:block}main{padding:0}main > .content{max-width:none}body{background:#fff;color:#000;font-size:11pt}
  h1::after{background:#999}
  .card,.callout,.studio,.scenario,.quiz{break-inside:avoid}
  .studio{background:#ddd!important;border:1px solid #999}
  a{color:#000;text-decoration:none}
  h2{break-after:avoid}
  .tool .del,.tool-bar,.quiz summary::marker,.scenario button{display:none!important}.tool input,.tool select,.tool textarea{border:0;background:transparent;padding:0}.quiz details{display:block}.quiz details>*{display:block}.scenario .fb{display:block!important}
  .sw i,.surround,.surround i,.propbar,.dot,.proplegend i{print-color-adjust:exact;-webkit-print-color-adjust:exact}
  .site-footer{display:block}.site-footer span{display:inline-block;margin-right:1.2rem}
}

/* ---------- accessibility & footer ---------- */
.skip{position:absolute;left:-999px;top:8px;background:var(--ctl-bg);color:var(--ctl-ink);padding:.6rem 1rem;border-radius:var(--radius);z-index:100;text-decoration:none;font-weight:600}
.skip:focus{left:8px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
main:focus{outline:none}
.site-footer{margin-top:3rem;padding-top:1.2rem;border-top:1px solid var(--line);font-size:.78rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;line-height:1.5}
.site-footer a{color:var(--muted)}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* one rule, not two: when an aside or the contents list closes right above a section, its rule is the divider */
:is(.callout:not(.yh),.toc) + h2{border-top:0;padding-top:0}