/* Margin Notes: an analyst's notebook. Mist, slate ink, sea teal, coral. Sidenotes live in the margin. */
:root{
  --ink:#22313f;
  --ink-soft:#4c5d6c;
  --teal:#0e7c7b;
  --teal-deep:#0a5a5a;
  --coral:#e4572e;
  --mist:#eaf2f5;
  --paper:#ffffff;
  --sand:#f3ead8;
  --line:#d5e0e5;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Public Sans","Segoe UI",Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:1.05rem;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal-deep);text-decoration-color:rgba(14,124,123,.45);text-underline-offset:3px}
a:hover{color:var(--coral);text-decoration-color:var(--coral)}
:focus-visible{outline:3px solid var(--coral);outline-offset:2px}

.shell{max-width:1120px;margin:0 auto;padding:0 1.5rem}

/* Header */
.masthead{border-bottom:1px solid var(--line);background:var(--paper)}
.masthead .shell{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-top:1.1rem;padding-bottom:1.1rem}
.brand{font-family:var(--serif);font-size:1.7rem;font-weight:600;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:.6rem;letter-spacing:-.01em}
.brand::before{content:"";width:4px;height:1.6rem;background:var(--teal);display:block}
.brand small{font-family:var(--sans);font-size:.8rem;font-weight:500;color:var(--ink-soft);letter-spacing:0}
.menu ul{list-style:none;margin:0;padding:0;display:flex;gap:1.3rem;flex-wrap:wrap}
.menu a{color:var(--ink);text-decoration:none;font-weight:500;font-size:.98rem;padding:.25rem 0;border-bottom:2px solid transparent}
.menu a:hover{border-bottom-color:var(--coral);color:var(--ink)}
.menu a[aria-current="page"]{border-bottom-color:var(--teal);color:var(--teal-deep)}

/* Intro */
.intro{background:var(--mist);padding:3rem 0 2.5rem}
.intro h1{font-family:var(--serif);font-weight:600;font-size:clamp(2.3rem,4.6vw,3.6rem);line-height:1.08;letter-spacing:-.005em;margin:0 0 1rem;max-width:22ch;font-variation-settings:"opsz" 60}
.intro .lede{font-size:1.2rem;color:var(--ink-soft);max-width:60ch;margin:0 0 1rem}
.meta{font-size:.92rem;color:var(--ink-soft);margin:0}
.meta a{font-weight:600}
.crumbs ol{list-style:none;margin:0 0 1rem;padding:0;display:flex;flex-wrap:wrap;gap:.35rem;font-size:.9rem;color:var(--ink-soft)}
.crumbs li+li::before{content:"›";margin-right:.35rem;color:var(--teal)}

/* Hero figure spans text + margin */
.lead-figure{margin:0;padding:2rem 0 0}
.lead-figure img{border-radius:6px}
.lead-figure figcaption{font-size:.88rem;color:var(--ink-soft);margin-top:.5rem}

/* Chip TOC */
.chips{margin:2rem 0 0;padding:1.1rem 1.25rem;background:var(--paper);border:1px solid var(--line);border-radius:6px}
.chips p{font-family:var(--serif);font-weight:600;margin:0 0 .6rem;font-size:1.1rem}
.chips ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.45rem}
.chips a{display:block;font-size:.88rem;text-decoration:none;color:var(--ink);background:var(--mist);padding:.3rem .7rem;border-radius:999px}
.chips a:hover{background:var(--teal);color:#fff}

/* Text column with margin for sidenotes */
.text{max-width:990px;padding:2.5rem 19rem 3rem 0;position:relative}
.text > *{max-width:66ch}
.text h2{font-family:var(--serif);font-weight:600;font-size:1.85rem;line-height:1.15;letter-spacing:-.01em;margin:2.8rem 0 .7rem;font-variation-settings:"opsz" 72}
.text h3{font-family:var(--sans);font-weight:700;font-size:1.12rem;margin:1.7rem 0 .35rem;color:var(--teal-deep)}
.text p{margin:0 0 1rem}
.text ul{padding-left:1.2rem}

/* Signature: sidenotes */
.note{float:right;clear:right;width:16rem;margin:.3rem -19rem 1rem 0;font-size:.9rem;line-height:1.5;color:var(--ink);background:var(--sand);padding:.8rem .95rem;border-radius:4px;position:relative}
.note::before{content:"";position:absolute;left:-1.2rem;top:1rem;width:.8rem;border-top:1px solid var(--coral)}
.note b{display:block;font-family:var(--serif);font-size:1rem;margin-bottom:.15rem;color:var(--coral)}

/* Data table */
.data{overflow-x:auto;margin:1.25rem 0 1.5rem}
.data table{border-collapse:collapse;width:100%;min-width:520px;font-size:.95rem}
.data th{text-align:left;font-weight:700;border-bottom:2px solid var(--teal);padding:.55rem .6rem;color:var(--ink)}
.data td{border-bottom:1px solid var(--line);padding:.55rem .6rem;vertical-align:top}
.data td:first-child{font-weight:600}

/* Margin meter: illustrative bars */
.meter{margin:1.5rem 0;padding:1.1rem 1.25rem;border:1px solid var(--line);border-radius:6px}
.meter p.cap{font-size:.88rem;color:var(--ink-soft);margin:.6rem 0 0}
.bar{display:grid;grid-template-columns:7.5rem 1fr 3.5rem;align-items:center;gap:.6rem;margin:.4rem 0;font-size:.92rem}
.bar span.track{background:var(--mist);height:.9rem;border-radius:2px;overflow:hidden}
.bar span.fill{display:block;height:100%;background:var(--teal)}
.bar.hi span.fill{background:var(--coral)}
.bar em{font-style:normal;font-variant-numeric:tabular-nums;text-align:right}

/* Pullquote */
.quote{border-left:4px solid var(--coral);padding:.2rem 0 .2rem 1.2rem;margin:2rem 0;font-family:var(--serif);font-size:1.45rem;line-height:1.35;font-style:italic}
.quote p{margin:0}

/* FAQ */
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;padding:.9rem 2rem .9rem 0;font-weight:600;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:.4rem;top:1.2rem;width:.55rem;height:.55rem;border-right:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(-135deg);top:1.4rem}
@media (prefers-reduced-motion:reduce){.faq summary::after{transition:none}}
.faq details p{margin:0 0 1rem;color:var(--ink-soft)}

/* Author card */
.byline-card{display:flex;gap:1.25rem;align-items:flex-start;background:var(--mist);padding:1.25rem;border-radius:6px;margin:2.5rem 0}
.byline-card img{width:112px;height:112px;object-fit:cover;border-radius:4px;flex:none}
.byline-card .who{font-family:var(--serif);font-size:1.35rem;font-weight:600;margin:0}
.byline-card .job{color:var(--teal-deep);font-weight:600;font-size:.92rem;margin:0 0 .5rem}
.byline-card p{font-size:.95rem;margin:0 0 .45rem}

/* Related */
.more{margin-top:2.5rem}
.more h2{font-size:1.4rem;margin-top:0}
.more ul{list-style:none;padding:0;margin:0}
.more li{border-top:1px solid var(--line);padding:.6rem 0}
.more li::before{content:"";display:inline-block;width:.5rem;height:.5rem;background:var(--coral);border-radius:50%;margin-right:.7rem;vertical-align:middle}
.more a{font-weight:600}

/* Disclaimer */
.rg{border:1px solid var(--line);border-radius:6px;padding:1.1rem 1.25rem 1.1rem 4.6rem;position:relative;font-size:.93rem;margin-top:2.5rem;background:var(--paper)}
.rg .age{position:absolute;left:1.1rem;top:1.1rem;width:2.6rem;height:2.6rem;border-radius:50%;border:2px solid var(--coral);color:var(--coral);font-weight:800;display:grid;place-items:center;font-size:.9rem}
.rg .rg-title{font-family:var(--serif);font-weight:600;font-size:1.15rem;margin:0 0 .35rem}
.rg p{margin:0 0 .6rem}

/* Form */
.form{display:grid;gap:1rem;max-width:34rem;margin:1rem 0 1.5rem}
.form label{display:grid;gap:.3rem;font-weight:600;font-size:.95rem}
.form input,.form textarea{font:inherit;border:1px solid var(--line);border-radius:4px;padding:.6rem .7rem;background:var(--paper)}
.form input:focus,.form textarea:focus{border-color:var(--teal)}
.form button{justify-self:start;font:inherit;font-weight:700;background:var(--teal);color:#fff;border:0;border-radius:4px;padding:.65rem 1.3rem;cursor:pointer}
.form button:hover{background:var(--teal-deep)}

/* Footer */
.foot{border-top:4px solid var(--teal);background:var(--mist);padding:2rem 0;font-size:.92rem;color:var(--ink-soft);margin-top:1rem}
.foot .brand{font-size:1.3rem;margin-bottom:.5rem}

@media (max-width:768px){
  .text{padding:2rem 0 2.5rem}
  .note{float:none;width:auto;margin:1.2rem 0}
  .note::before{display:none}
  .byline-card{flex-direction:column}
  .menu ul{gap:.9rem}
  .bar{grid-template-columns:5.5rem 1fr 3rem}
  .rg{padding-left:1.25rem}
  .rg .age{position:static;margin-bottom:.5rem}
}
@media print{
  .masthead,.menu,.foot,.form,.chips,.more{display:none}
  .text{padding:0}
  .note{float:none;width:auto;margin:1rem 0;background:none;border:1px solid #999}
  a{color:#000}
}