/* Palette Field — swatch book on a neutral grey viewing surround, Syne display, mono codes. */
:root,[data-theme="design-tools"]{
--color-primary:#e11d48;--color-bg:#cfcec9;--color-bg-alt:#c2c1bc;--color-text:#1a1a1a;
--color-text-muted:#54534f;--color-border:#b3b2ad;--chip:#fff;
--ramp-1:#1a1a1a;--ramp-2:#e11d48;--ramp-3:#f0632f;--ramp-4:#f59e0b;--ramp-5:#a8a29e;--ramp-6:#d6d3cd;
--radius-sm:2px;--radius-md:3px;
--font-display:"Syne",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
--font-base:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
--font-mono:ui-monospace,SFMono-Regular,Menlo,"Courier New",monospace}
*{box-sizing:border-box}
body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-base);-webkit-font-smoothing:antialiased}
a{color:var(--color-text)}
:focus-visible{outline:2px solid var(--color-primary);outline-offset:3px}
/* nav */
.site-nav{background:var(--chip);border-bottom:1px solid var(--color-border)}
.nav-container{position:relative;height:70px;max-width:1180px;margin:auto;padding:0 20px;display:flex;justify-content:space-between;align-items:center}
.nav-logo{height:30px}
.nav-site-name{font:800 20px/1 var(--font-display);letter-spacing:-.01em}
.nav-links,.footer-links{display:flex;gap:22px;flex-wrap:wrap}
.nav-links a,.footer-links a{text-decoration:none;color:var(--color-text-muted);font:11px/1 var(--font-mono);letter-spacing:.1em;text-transform:uppercase}
.nav-links a:hover,.footer-links a:hover{color:var(--color-primary)}
/* home */
.pf-home{max-width:1180px;margin:auto;padding:0 20px 90px}
.pf-hero{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:64px;align-items:center;padding:76px 0 66px}
.pf-hero h1{font:800 clamp(38px,4.8vw,62px)/1.02 var(--font-display);letter-spacing:-.03em;margin:0 0 18px;max-width:16ch}
.pf-hero p{font-size:18px;line-height:1.7;color:var(--color-text-muted);max-width:46ch;margin:0}
/* the fandeck */
.pf-chips{position:relative;height:300px}
.pf-chips i{position:absolute;left:50%;bottom:14px;width:96px;height:250px;margin-left:-48px;border-radius:var(--radius-sm);
background:var(--c);transform-origin:50% 96%;box-shadow:0 8px 20px #00000024;transform:rotate(var(--r));
animation:pf-fan .7s cubic-bezier(.2,.8,.3,1) both}
.pf-chips i:nth-child(1){--r:-42deg;animation-delay:.05s}
.pf-chips i:nth-child(2){--r:-25deg;animation-delay:.11s}
.pf-chips i:nth-child(3){--r:-8deg;animation-delay:.17s}
.pf-chips i:nth-child(4){--r:9deg;animation-delay:.23s}
.pf-chips i:nth-child(5){--r:26deg;animation-delay:.29s}
.pf-chips i:nth-child(6){--r:43deg;animation-delay:.35s}
@keyframes pf-fan{from{transform:rotate(0);opacity:0}to{transform:rotate(var(--r));opacity:1}}
.pf-legend{display:flex;align-items:baseline;gap:14px;padding-bottom:12px;border-bottom:1px solid var(--color-border);font:11px var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--color-text-muted)}
.pf-legend b{font:11px var(--font-mono);color:var(--color-text)}
.pf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
.pf-tile{display:block;background:var(--chip);border-radius:var(--radius-md);overflow:hidden;text-decoration:none;color:inherit;box-shadow:0 4px 14px #00000014;transition:transform .18s,box-shadow .18s}
.pf-tile:hover{transform:translateY(-4px);box-shadow:0 16px 34px #00000026}
.pf-bar{display:block;height:104px;background:var(--c,var(--ramp-1))}
.pf-tile h2{font:800 19px/1.2 var(--font-display);letter-spacing:-.02em;margin:20px 20px 8px}
.pf-tile p{margin:0 20px 16px;font-size:14px;line-height:1.6;color:var(--color-text-muted)}
.pf-code{display:block;margin:0 20px 18px;font:11px var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--color-primary)}
.pf-foot-note{margin-top:34px;padding:16px 18px;background:var(--chip);border-left:4px solid var(--color-primary);font-size:14px;line-height:1.7;color:var(--color-text-muted)}
/* detail */
.pfd-page{max-width:1060px;margin:auto;padding:22px 20px 90px}
.pfd-crumb{font:11px var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--color-text-muted)}
.pfd-crumb a{text-decoration:none}
.pfd-head{max-width:720px;padding:40px 0 26px}
.pfd-kicker{font:11px var(--font-mono);letter-spacing:.18em;text-transform:uppercase;color:var(--color-primary)}
.pfd-head h1{font:800 clamp(33px,4.6vw,54px)/1.03 var(--font-display);letter-spacing:-.03em;margin:13px 0}
.pfd-head p{font-size:18px;line-height:1.7;color:var(--color-text-muted);margin:0}
.pfd-tool{background:var(--chip);border-radius:var(--radius-md);padding:26px;margin:22px 0 50px;box-shadow:0 10px 28px #0000001f}
.pfd-tool-label{font:11px var(--font-mono);letter-spacing:.18em;text-transform:uppercase;color:var(--color-text-muted);padding-bottom:14px;border-bottom:1px solid #e7e5e4;margin-bottom:22px}
.pfd-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:56px}
.pfd-reading{font-size:17px;line-height:1.8}
.pfd-reading h2{font:800 26px/1.16 var(--font-display);letter-spacing:-.03em;margin:36px 0 12px}
.pfd-reading h3{font:800 19px var(--font-display);letter-spacing:-.02em;margin:26px 0 8px}
.pfd-reading p{margin:0 0 14px}
.pfd-reading ol,.pfd-reading ul{margin:0 0 16px;padding-left:22px}
.pfd-reading li{margin-bottom:7px}
.pfd-reading code{font:14px var(--font-mono);background:var(--chip);padding:2px 6px;border-radius:2px}
.pfd-side{align-self:start;background:var(--chip);border-radius:var(--radius-md);padding:20px;color:var(--color-text-muted);font-size:14px;line-height:1.65}
.pfd-side strong{display:block;color:var(--color-text);font:11px var(--font-mono);letter-spacing:.14em;text-transform:uppercase;margin-bottom:8px}
.pfd-side a{display:inline-block;margin-top:12px;color:var(--color-primary);font-weight:700;text-decoration:none}
.pfd-side a:hover{text-decoration:underline}
.pfd-index{margin-top:24px;border-top:1px solid #e7e5e4;padding-top:14px}
.pfd-index ul{list-style:none;margin:10px 0 0;padding:0}
.pfd-index li{padding:6px 0;font-size:13px}
.pfd-index a{display:block;color:var(--color-text);text-decoration:none}
.pfd-index a:hover{color:var(--color-primary)}
.pfd-index span[aria-current]{font-weight:700;color:var(--color-primary)}
.pfd-faq{margin-top:56px}
.pfd-faq h2{font:800 26px var(--font-display);letter-spacing:-.03em}
.pfd-faq details{border-bottom:1px solid var(--color-border);padding:15px 0}
.pfd-faq summary{cursor:pointer;font-weight:700}
.pfd-faq p{color:var(--color-text-muted);line-height:1.75}
.pfd-related{margin-top:56px}
.pfd-related h2{font:800 26px var(--font-display);letter-spacing:-.03em;margin-bottom:18px}
.pfd-related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pfd-related-card{display:block;background:var(--chip);border-radius:var(--radius-md);padding:20px;text-decoration:none;color:inherit;box-shadow:0 4px 14px #00000014;transition:transform .18s,box-shadow .18s}
.pfd-related-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px #00000026}
.pfd-related-card h3{font:800 17px var(--font-display);letter-spacing:-.02em;margin:0 0 8px}
.pfd-related-card p{font-size:14px;line-height:1.6;color:var(--color-text-muted);margin:0 0 12px}
.pfd-related-card span{font:11px var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--color-primary)}
.pfd-disclaimer{margin:44px 0 0;padding:16px 18px;background:var(--chip);border-left:4px solid var(--color-primary);font-size:14px;line-height:1.7;color:var(--color-text-muted)}
.site-footer{border-top:1px solid var(--color-border);padding:32px 20px;text-align:center;background:var(--chip)}
.footer-copyright{margin-top:14px;font:11px var(--font-mono);letter-spacing:.08em;color:var(--color-text-muted)}
/* tool surface: a workbench on white */
[data-theme="design-tools"] .tool-row{gap:18px;margin-bottom:20px}
[data-theme="design-tools"] .tool-field{font:11px/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--color-text-muted);gap:9px}
[data-theme="design-tools"] .tool-input,[data-theme="design-tools"] .tool-textarea{border:1px solid #d6d3d1;border-radius:var(--radius-sm);background:#fff;padding:11px 12px;font:15px/1.4 var(--font-mono);color:var(--color-text)}
[data-theme="design-tools"] .tool-input:focus,[data-theme="design-tools"] .tool-textarea:focus{outline:0;border-color:var(--color-text);box-shadow:0 0 0 3px #e11d4826}
[data-theme="design-tools"] .tool-btn{border-radius:var(--radius-sm);padding:12px 20px;font:11px/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase}
[data-theme="design-tools"] .tool-btn-primary{background:var(--color-text);color:#fff;border:0}
[data-theme="design-tools"] .tool-btn-primary:hover{background:var(--color-primary)}
[data-theme="design-tools"] .tool-result-box{margin-top:24px;padding:20px;border:0;border-radius:var(--radius-md);background:#f5f5f4}
[data-theme="design-tools"] .tool-stat-hero{margin:0 0 6px;font:800 clamp(30px,5.2vw,44px)/1.02 var(--font-display);letter-spacing:-.04em;color:var(--color-text)}
[data-theme="design-tools"] .tool-unit{display:inline-block;margin-left:10px;font:11px var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--color-primary);vertical-align:middle}
[data-theme="design-tools"] .tool-hint{font-size:13px;line-height:1.7;color:var(--color-text-muted);margin-top:10px}
@media(max-width:960px){
.pf-hero{grid-template-columns:1fr;gap:34px}
.pf-chips{height:230px}
.pf-chips i{width:74px;height:190px;margin-left:-37px}
.pf-grid,.pfd-related-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
.pf-hero{display:none}
.pf-home{padding:24px 16px 60px}
.pf-grid{margin-top:20px}
.pf-grid,.pfd-related-grid{grid-template-columns:1fr}
.pfd-head{padding-top:26px}
.pfd-layout{grid-template-columns:1fr;gap:28px}
.pfd-side{margin-top:8px}
.pfd-tool{padding:20px 18px}
}
@media(prefers-reduced-motion:reduce){
.pf-chips i{animation:none}
.pf-tile:hover,.pfd-related-card:hover{transform:none}
}