@font-face{font-family:Saans;src:url('assets/Saans-SemiBold.ttf') format('truetype');font-weight:600;font-display:swap}
@font-face{font-family:Kyoto;src:url('assets/PPKyoto-Medium.ttf') format('truetype');font-weight:500;font-display:swap}

/* Brand palette with Toolcraft-style control tokens: compact sizes, 8/12px radii and
   surfaces mixed from the ink color instead of outlines. */
:root{
  --ink:#0c0b08;--paper:#efeeec;--bg:#faf9f6;--muted:#66645f;--line:#d8d6d1;--orange:#fa3002;
  --fill:color-mix(in oklab,var(--ink) 5%,transparent);
  --fill-hover:color-mix(in oklab,var(--ink) 9%,transparent);
  --fill-selected:color-mix(in oklab,var(--ink) 14%,transparent);
  --text-soft:color-mix(in oklab,var(--ink) 72%,transparent);
  --text-faint:color-mix(in oklab,var(--ink) 55%,transparent);
  --ring:color-mix(in oklab,var(--ink) 35%,transparent);
  --surface:color-mix(in oklab,#fff 62%,transparent);
  --radius-md:6px;--radius-lg:8px;--radius-xl:12px;
  --control-h:28px;--sidebar-w:248px;
}

*{box-sizing:border-box;scrollbar-width:thin;scrollbar-color:color-mix(in oklab,var(--ink) 12%,transparent) transparent}
*::-webkit-scrollbar{width:4px;height:4px}
*::-webkit-scrollbar-track{background:transparent}
*::-webkit-scrollbar-thumb{border-radius:999px;background:color-mix(in oklab,var(--ink) 12%,transparent)}
html{scroll-behavior:smooth;scroll-padding-top:28px}
body{margin:0;background:var(--bg);color:var(--ink);font:600 14px/1.45 Saans,Arial,sans-serif;-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit;color:inherit}
button,a,input,textarea{-webkit-tap-highlight-color:transparent}
button,a{touch-action:manipulation}
a{color:inherit;text-decoration:none}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.45}
p{margin:0}
:focus-visible{outline:2px solid var(--ring);outline-offset:2px}
.icon{width:14px;height:14px;flex:none}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:fixed;top:-70px;left:16px;padding:8px 12px;border-radius:var(--radius-lg);background:var(--ink);color:var(--paper);font-size:12px;z-index:10}
.skip:focus{top:12px}
.eyebrow,.sidebar-title,.pair-label,.preview-caption{font-family:Kyoto,monospace;font-size:10px;font-weight:500;letter-spacing:.05em;text-transform:uppercase}

/* Sidebar: the one bordered surface, separating navigation from content. */
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar-w);padding:28px 16px 20px;border-right:1px solid var(--line);display:flex;flex-direction:column;background:var(--bg)}
.brand{display:block;margin:0 10px 40px}
.brand img{width:172px;height:auto;display:block}
.sidebar-title{display:flex;align-items:center;gap:8px;margin:0 10px 10px;color:var(--text-faint);white-space:nowrap}
.dot{width:6px;height:6px;background:var(--orange);border-radius:50%;display:inline-block;flex-shrink:0}
nav{display:flex;flex-direction:column;gap:2px}
nav a{height:32px;padding:0 10px;display:flex;align-items:center;font-size:13px;color:var(--text-soft);border-radius:var(--radius-lg);transition:background .15s,color .15s}
nav a:hover{background:var(--fill);color:var(--ink)}
nav a.active{background:var(--fill-selected);color:var(--ink)}
.sidebar-bottom{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.source-link{display:inline-flex;align-items:center;gap:6px;padding:0 10px;font-size:12px;color:var(--text-faint);transition:color .15s}
.source-link:hover{color:var(--ink)}

/* Buttons */
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:32px;padding:0 12px;border:0;border-radius:var(--radius-lg);background:var(--fill);font-size:13px;white-space:nowrap;transition:background .15s}
.button:hover{background:var(--fill-hover)}
.button.full{width:100%;justify-content:space-between}
.button.primary{background:var(--ink);color:var(--paper)}
.button.primary:hover{background:#2a2823}
.icon-button{display:inline-grid;place-items:center;width:var(--control-h);height:var(--control-h);padding:0;border:0;border-radius:var(--radius-lg);background:none;color:var(--text-faint);transition:background .15s,color .15s}
.icon-button:hover{background:var(--fill);color:var(--ink)}

/* Segmented controls: equal items, soft tint for the selected one. */
.segmented{display:inline-flex;gap:2px;padding:2px;border-radius:var(--radius-lg);background:var(--fill)}
.segmented button{height:24px;min-width:48px;padding:0 10px;border:0;border-radius:var(--radius-md);background:none;font-size:12px;color:var(--text-soft);transition:background .15s,color .15s}
.segmented button:hover{color:var(--ink)}
.segmented button[aria-pressed=true]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px color-mix(in oklab,var(--ink) 10%,transparent)}

/* Layout */
main{margin-left:var(--sidebar-w);padding:28px 48px 0;max-width:1600px}
section{padding:72px 0 0;scroll-margin-top:24px}
h2{font-size:clamp(28px,2.6vw,40px);letter-spacing:-.05em;line-height:1.05;margin:0;font-weight:600}
h3{font-size:15px;letter-spacing:-.02em;font-weight:600;line-height:1.2;margin:0}
.section-heading{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:20px}
.footnote{font-size:12px;color:var(--text-faint);line-height:1.6;margin-top:12px;max-width:760px}
.rule-note{display:flex;gap:10px;align-items:baseline;margin-top:16px;color:var(--text-faint);font-size:12px;line-height:1.6}
.rule-note .dot{transform:translateY(-1px)}
.rule-note strong{color:var(--ink)}

h1{font-size:clamp(40px,4.4vw,68px);letter-spacing:-.055em;line-height:1;margin:12px 0 0;font-weight:600}

/* Identity */
.two-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.logo-view{height:240px;border-radius:var(--radius-xl);background:var(--paper);display:flex;align-items:center;justify-content:center;position:relative}
.logo-view.dark{background:var(--ink)}
.logo-view img{width:78%;height:auto}
.swatches{position:absolute;bottom:12px;right:12px;display:flex;gap:6px}
.swatches button{width:20px;height:20px;border:1px solid #8b8983;border-radius:50%;padding:0;background:var(--ink)}
.swatches button[data-tone=white]{background:var(--paper)}
.swatches button[aria-pressed=true]{outline:1.5px solid currentColor;outline-offset:2px}
.dark .swatches{color:#fff}
.logo-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 2px 0}
.actions-row{display:flex;gap:2px}
.actions-row button{display:inline-flex;align-items:center;gap:6px;height:var(--control-h);padding:0 8px;border:0;border-radius:var(--radius-lg);background:none;font-size:12px;color:var(--text-soft);transition:background .15s,color .15s}
.actions-row button:hover{background:var(--fill);color:var(--ink)}

/* Typography */
.type-card{border-radius:var(--radius-xl);padding:24px;margin-bottom:16px;background:var(--paper);overflow:hidden}
.secondary-type{background:#e7e7e4}
.type-top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.type-top .eyebrow{color:var(--text-faint)}
.type-top h3{margin-top:8px;font-size:20px;letter-spacing:-.035em}
.type-card .button{background:color-mix(in oklab,#fff 70%,transparent)}
.type-card .button:hover{background:#fff}
.type-specimen{font-size:clamp(64px,9.5vw,150px);line-height:1.25;letter-spacing:-.07em;margin:24px 0 28px}
.secondary-type .type-specimen{font-family:Kyoto,monospace;font-size:clamp(44px,6vw,92px);letter-spacing:-.06em}
.type-bottom{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.type-bottom>p{font-size:clamp(18px,1.9vw,28px);line-height:1.05;letter-spacing:-.045em}
.secondary-type .type-bottom>p{font-family:Kyoto,monospace;font-size:13px;line-height:1.6;letter-spacing:0}
.type-bottom .eyebrow{color:var(--text-faint)}
.type-bottom .small{font-size:12px;color:var(--text-faint);margin-top:8px;line-height:1.6}

/* Color */
.palette{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px 12px}
.color-block{height:140px;border-radius:var(--radius-xl);padding:12px;display:flex;align-items:flex-end}
.color-card:nth-child(n+5) .color-block{height:96px}
.color-details{padding:10px 0 0}
.color-details h3{font-size:13px;margin:0 2px 8px}
.color-values{list-style:none;margin:0;padding:2px;border-radius:var(--radius-lg);background:var(--fill)}
.color-copy{width:100%;height:26px;padding:0 6px;display:flex;align-items:center;gap:8px;border:0;border-radius:var(--radius-md);background:none;font-family:Kyoto,monospace;font-size:10px;text-align:left;transition:background .15s}
.color-copy:hover{background:var(--fill-hover)}
.color-copy>span:nth-child(2){flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.color-format{width:26px;flex:none;color:var(--text-faint)}
.color-copy .icon{width:12px;height:12px;color:var(--text-faint);transition:opacity .15s}
@media(hover:hover){.color-copy .icon{opacity:0}.color-copy:hover .icon,.color-copy:focus-visible .icon{opacity:1}}
.color-role{font-size:11px;color:var(--text-faint);margin:8px 2px 0}
.subheading{margin:48px 0 16px}
.subheading h3{font-size:20px;letter-spacing:-.035em}
.pair-columns{display:grid;gap:32px}
.pair-label{display:flex;align-items:center;gap:6px;margin-bottom:10px;color:var(--text-faint)}
.pair-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px 12px}
.pair-sample{border-radius:var(--radius-xl);padding:16px 14px;font-size:28px;line-height:1.2;letter-spacing:-.04em;min-height:80px}
.pair-info{padding:8px 2px 0;font-size:11px;line-height:1.5}
.pair-info small{display:block;color:var(--text-faint);font-size:10px}

/* Social assets */
.social-group+.social-group{margin-top:40px}
.social-heading{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px}
.social-heading h3{font-size:20px;letter-spacing:-.035em}
.social-heading span{font-family:Kyoto,monospace;font-size:10px;color:var(--text-faint)}
.social-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 16px}
.social-card{margin:0;min-width:0}
.social-card img{display:block;width:100%;height:auto;border-radius:var(--radius-xl);background:var(--paper)}
.social-card figcaption{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 2px 0;font-size:13px}
.social-card a{display:inline-flex;align-items:center;gap:6px;height:var(--control-h);padding:0 8px;border-radius:var(--radius-lg);font-size:12px;color:var(--text-soft);transition:background .15s,color .15s}
.social-card a:hover{background:var(--fill);color:var(--ink)}

/* Application: canvas + side panel, like a Toolcraft tool. */
.card-studio{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:12px;align-items:start}
.card-canvas{position:relative;border-radius:var(--radius-xl);background-color:#ecebe7;background-image:radial-gradient(color-mix(in oklab,var(--ink) 14%,transparent) 1px,transparent 1px);background-size:16px 16px;padding:12px;display:flex;flex-direction:column;min-width:0;min-height:100%}
.preview-toolbar{display:flex;justify-content:space-between;gap:8px}
.preview-toolbar .segmented{background:var(--surface);backdrop-filter:blur(16px)}
.preview-toolbar .segmented button[aria-pressed=true]{background:var(--ink);color:var(--paper);box-shadow:none}
.preview-stage{flex:1;padding:48px 28px;display:flex;align-items:center;min-height:300px}
.toolbar-group{display:flex;gap:8px;flex-wrap:wrap}
#card-3d{position:relative;width:100%;height:clamp(300px,36vw,520px);cursor:grab}
#card-3d:active{cursor:grabbing}
#card-3d canvas{display:block;width:100%;height:100%;outline:0}
#card-3d[data-loading=true]::after{content:'Building 3D preview…';position:absolute;inset:auto 0 12px;text-align:center;font-size:12px;color:var(--text-faint)}
.card-canvas.is-3d{background-color:#e2e0da}
.card-canvas.is-3d .preview-stage{padding:8px 0}
.caption-3d,.card-canvas.is-3d .caption-2d{display:none!important}
.card-canvas.is-3d .caption-3d{display:inline-flex!important;align-items:center;gap:6px}
[hidden]{display:none!important}
.switch{gap:8px;height:24px;padding:0 4px;border:0;border-radius:var(--radius-md);background:none;font-family:Saans,Arial,sans-serif;font-size:11px;letter-spacing:0;text-transform:none;color:var(--text-soft);transition:color .15s}
.switch:hover{color:var(--ink)}
.switch-track{position:relative;width:26px;height:16px;flex:none;border-radius:999px;background:var(--fill-selected);transition:background .15s}
.switch-track::after{content:'';position:absolute;top:2px;left:2px;width:12px;height:12px;border-radius:50%;background:#fff;box-shadow:0 1px 2px color-mix(in oklab,var(--ink) 20%,transparent);transition:transform .18s}
.switch[aria-checked=true]{color:var(--ink)}
.switch[aria-checked=true] .switch-track{background:var(--ink)}
.switch[aria-checked=true] .switch-track::after{transform:translateX(10px)}
.depth-control{gap:8px;font-family:Saans,Arial,sans-serif;font-size:11px;letter-spacing:0;text-transform:none;color:var(--text-soft)}
.depth-control output{min-width:28px;font-family:Kyoto,monospace;font-size:10px;color:var(--ink)}
.depth-control input{--pct:0%;width:96px;height:16px;margin:0;background:none;appearance:none;cursor:pointer}
.depth-control input::-webkit-slider-runnable-track{height:4px;border-radius:999px;background:linear-gradient(to right,var(--ink) var(--pct),var(--fill-selected) var(--pct))}
.depth-control input::-moz-range-track{height:4px;border-radius:999px;background:linear-gradient(to right,var(--ink) var(--pct),var(--fill-selected) var(--pct))}
.depth-control input::-webkit-slider-thumb{appearance:none;width:12px;height:12px;margin-top:-4px;border-radius:50%;background:#fff;box-shadow:0 0 0 1px color-mix(in oklab,var(--ink) 18%,transparent),0 1px 2px color-mix(in oklab,var(--ink) 20%,transparent)}
.depth-control input::-moz-range-thumb{width:12px;height:12px;border:0;border-radius:50%;background:#fff;box-shadow:0 0 0 1px color-mix(in oklab,var(--ink) 18%,transparent),0 1px 2px color-mix(in oklab,var(--ink) 20%,transparent)}
.depth-control input:focus-visible{outline:2px solid var(--ring);outline-offset:2px;border-radius:999px}
.card-canvas.is-3d .preview-caption{flex-wrap:wrap;row-gap:6px}
#card-preview{width:100%;aspect-ratio:1004/650;border-radius:2px;box-shadow:0 12px 32px color-mix(in oklab,var(--ink) 12%,transparent);line-height:0;background:var(--paper);overflow:hidden}
#card-preview svg,#card-preview>img{display:block;width:100%;height:auto}
#card-preview>span{display:block;line-height:1.5;padding:24px;font-size:12px}
.preview-caption{display:flex;justify-content:space-between;align-items:center;color:var(--text-faint);font-size:9px}
.preview-caption>span:first-child{display:inline-flex;align-items:center;gap:6px}
.preview-caption .icon{width:12px;height:12px}

.panel{position:sticky;top:20px;display:flex;flex-direction:column;max-height:calc(100vh - 40px);border-radius:var(--radius-xl);background:var(--surface);backdrop-filter:blur(24px) saturate(1.5);box-shadow:0 1px 2px color-mix(in oklab,var(--ink) 6%,transparent),0 8px 24px color-mix(in oklab,var(--ink) 6%,transparent)}
.panel-header{display:flex;align-items:center;justify-content:space-between;height:40px;padding:0 6px 0 14px;flex:none}
.panel-header h3{font-size:13px;letter-spacing:-.01em}
.panel-body{overflow-y:auto;overscroll-behavior:contain;padding:2px 14px 6px}
.panel-section{display:flex;flex-direction:column;gap:12px;padding-bottom:18px}
.panel-title{margin:0;font-size:13px;font-weight:600;letter-spacing:-.01em}
.panel label{display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--text-soft)}
.optional{position:absolute;right:0;font-size:11px;color:var(--text-faint)}
.panel label:has(.optional){position:relative}
.panel input:not([type=checkbox]),.panel textarea{display:block;width:100%;min-width:0;height:var(--control-h);padding:0 8px;border:0;border-radius:var(--radius-lg);background:var(--fill);font-size:12px;color:var(--ink);outline:0;transition:background .15s,box-shadow .15s}
.panel textarea{height:auto;padding:6px 8px;resize:none;line-height:1.5}
.panel input:not([type=checkbox]):hover,.panel textarea:hover{background:var(--fill-hover)}
.panel input:not([type=checkbox]):focus,.panel textarea:focus{background:var(--fill-hover);box-shadow:inset 0 0 0 1px var(--ring)}
.print-controls{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.input-unit{position:relative;display:block}
.input-unit input{padding-right:30px!important}
.input-unit>span{position:absolute;right:8px;top:50%;transform:translateY(-50%);font-size:11px;color:var(--text-faint);pointer-events:none}
.panel .check-label{flex-direction:row;align-items:center;gap:8px;color:var(--ink)}
.check-label input{width:14px;height:14px;margin:0;accent-color:var(--ink)}
.panel-note{font-size:11px;line-height:1.5;color:var(--text-faint)}
#finish-controls{display:flex;flex-direction:column;gap:12px}
.finish-group{display:flex;flex-direction:column;gap:4px}
.finish-side{font-family:Kyoto,monospace;font-size:10px;letter-spacing:.05em;text-transform:uppercase;color:var(--text-faint)}
.panel .inline-field{flex-direction:row;align-items:center;justify-content:space-between;gap:8px;min-height:var(--control-h)}
.inline-field>span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.panel select{flex:none;width:124px;height:var(--control-h);padding:0 26px 0 8px;border:0;border-radius:var(--radius-lg);background:var(--fill) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%230c0b08' stroke-opacity='.55' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 8px center;font:inherit;font-size:12px;color:var(--ink);appearance:none;cursor:pointer;outline:0;transition:background-color .15s,box-shadow .15s}
.panel select:hover{background-color:var(--fill-hover)}
.panel select:focus-visible{box-shadow:inset 0 0 0 1px var(--ring)}
#card-errors{font-size:11px;line-height:1.5;color:#a0250b}
#card-errors:empty{display:none}
.panel-footer{flex:none;padding:10px 12px 12px}

footer{padding:40px 0 32px;display:flex;justify-content:flex-end;margin-top:64px}
footer a{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--text-soft);transition:color .15s}
footer a:hover{color:var(--ink)}

/* Toolcraft-style toast: compact dark surface with a status dot. */
#toast{position:fixed;bottom:20px;left:calc(50% + var(--sidebar-w) / 2);transform:translate(-50%,12px);display:flex;align-items:center;gap:8px;padding:9px 14px 9px 12px;border-radius:var(--radius-xl);background:color-mix(in oklab,var(--ink) 94%,transparent);backdrop-filter:blur(16px);color:var(--paper);font-size:13px;box-shadow:0 8px 24px #0002;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:20}
#toast::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--orange);flex:none}
#toast.show{opacity:1;transform:translate(-50%,0)}

@media(min-width:1700px){main{margin-right:auto}}

@media(max-width:1100px){
  :root{--sidebar-w:220px}
  .brand img{width:156px}
  main{padding:24px 28px 0}
  .card-studio{grid-template-columns:1fr}
  .panel{position:static;max-height:none}
  .panel-body{overflow:visible}
  .panel-section:first-child{display:grid;grid-template-columns:1fr 1fr}
  .panel-section:first-child label:has(textarea),#card-errors{grid-column:1/-1}
  .palette{grid-template-columns:repeat(3,1fr)}
}

@media(max-width:760px){
  .sidebar{position:relative;width:100%;padding:20px 16px 12px;border-right:0;border-bottom:1px solid var(--line)}
  .brand{margin:0 0 18px}
  .brand img{width:150px}
  .sidebar-title{position:absolute;right:16px;top:26px;margin:0}
  .sidebar nav{flex-direction:row;overflow-x:auto;margin:0 -16px;padding:0 16px 10px;scrollbar-width:none}
  .sidebar nav::-webkit-scrollbar{display:none}
  .sidebar nav a{white-space:nowrap;height:30px;font-size:12px}
  .sidebar-bottom{margin-top:0}
  .sidebar-bottom .source-link{display:none}
  main{margin-left:0;padding:20px 16px 0}
  section{padding-top:56px}
  h1{font-size:40px;margin-top:8px}
  .section-heading{flex-wrap:wrap;gap:12px}
  .two-grid{grid-template-columns:1fr}
  .logo-view{height:210px}
  .logo-actions{flex-wrap:wrap}
  .type-card{padding:18px}
  .type-top h3{font-size:18px}
  .type-specimen{font-size:76px;margin:24px 0}
  .secondary-type .type-specimen{font-size:46px}
  .type-bottom{grid-template-columns:1fr;gap:16px}
  .palette{grid-template-columns:1fr 1fr}
  .color-block{height:120px}
  .color-card:nth-child(n+5) .color-block{height:96px}
  .pair-columns{gap:24px}
  .pair-grid{grid-template-columns:1fr 1fr}
  .social-grid{grid-template-columns:1fr}
  .card-canvas{padding:10px}
  .preview-stage{padding:28px 6px;min-height:220px}
  .panel-section:first-child{display:flex}
  footer{margin-top:40px}
  #toast{left:50%;max-width:calc(100% - 32px)}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}