:root{color-scheme:light only;--bg:#FFFFFF;--panel:#F5F8FA;--line:#E3EAEF;--ink:#1F2D3A;--ink-2:#4E5F6E;--soft:#7F8E9B;--brand:#0FA3B1;--brand-deep:#0C8B97;--brand-soft:#E3F5F7;--good:#1F9D5A;--good-wash:#E3F6EB;--warn:#C97A0A;--warn-wash:#FDF1DE;--stop:#C4433A;--stop-wash:#FBE9E7;--basics:#6D5BD0;--basics-wash:#EEEBFB;--cta:#F08A24;--cta-deep:#D9771A;--foot:#0A4A53;--font:"Poppins","Segoe UI",Helvetica,Arial,sans-serif}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.7;padding-inline:18px;padding-block:0}
.wrap{max-width:680px;margin:0 auto}
.wrap.wide{max-width:1000px}
a{color:inherit}
:focus-visible{outline:3px solid #2F80ED;outline-offset:3px;border-radius:8px}
h1,h2,h3{margin:0;font-weight:700;line-height:1.28;letter-spacing:-0.01em;text-wrap:balance}
p{margin:0}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:26px 10px}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:1.05rem;text-decoration:none}
.logo svg{width:28px;height:28px;flex:none}
.back{font-size:.86rem;color:var(--soft);text-decoration:none}
.back-short{display:none}
.back:hover{color:var(--ink)}
.crumbs{font-size:.84rem;color:var(--soft);margin-top:22px}
.crumbs a{text-decoration:none;color:var(--soft)}
.crumbs a:hover{color:var(--ink)}
.crumbs span{margin:0 6px}
.eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:.74rem;font-weight:700;letter-spacing:.02em;padding:4px 10px;border-radius:999px}
.eyebrow.stop{color:var(--stop);background:var(--stop-wash)}
.eyebrow.warn{color:var(--warn);background:var(--warn-wash)}
.eyebrow.good{color:var(--good);background:var(--good-wash)}
.eyebrow.brand{color:var(--brand-deep);background:var(--brand-soft)}
.eyebrow.basics{color:var(--basics);background:var(--basics-wash)}
h1.title{font-size:clamp(1.7rem,6vw,2.2rem);margin-top:14px}
.byline{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;margin-top:12px;font-size:.86rem;color:var(--soft)}
.byline b{color:var(--ink-2);font-weight:600}
.hero{margin-top:22px;background:var(--panel);border-radius:20px;padding:26px 20px;display:flex;justify-content:center}
.hero svg{width:100%;max-width:340px;height:auto}
article{margin-top:26px}
article p{color:var(--ink-2);font-size:1.02rem}
article p+p{margin-top:16px}
article h2{font-size:1.2rem;margin-top:34px;margin-bottom:12px;color:var(--ink)}
article h3{font-size:1.02rem;margin-top:22px;margin-bottom:8px;color:var(--ink)}
article ul,article ol.plain{margin:16px 0;padding-left:20px;color:var(--ink-2)}
article li{margin-top:8px}
article li b{color:var(--ink)}
article b{color:var(--ink)}
.callout{margin:22px 0;border-radius:14px;padding:16px 18px;font-size:.95rem;color:var(--ink);background:var(--warn-wash)}
.callout b{color:var(--warn)}
.callout.good{background:var(--good-wash)} .callout.good b{color:var(--good)}
.callout.stop{background:var(--stop-wash)} .callout.stop b{color:var(--stop)}
.callout.brand{background:var(--brand-soft)} .callout.brand b{color:var(--brand-deep)}
.callout.basics{background:var(--basics-wash)} .callout.basics b{color:var(--basics)}
.timeline{list-style:none;padding:0;margin:16px 0 0 6px;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 18px 22px;margin:0}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:-7px;top:3px;width:12px;height:12px;border-radius:50%;background:var(--stop);border:2px solid #fff;box-shadow:0 0 0 2px var(--stop)}
.timeline .d{display:block;font-size:.8rem;font-weight:700;color:var(--stop)}
.timeline .t{display:block;font-size:.96rem;color:var(--ink-2);margin-top:2px}
.tbl{width:100%;border-collapse:collapse;margin:16px 0;font-size:.92rem}
.tbl th,.tbl td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{font-size:.78rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--soft);background:var(--panel)}
.tbl td b{color:var(--ink)}
.tbl-wrap{overflow-x:auto;margin:0 -18px;padding:0 18px}
.check{color:var(--good);font-weight:700} .cross{color:var(--stop);font-weight:700}
.cta-block{margin:34px 0;background:var(--brand-soft);border-radius:20px;padding:24px 22px;text-align:center}
.cta-block .mascot{width:64px;height:64px;margin:0 auto 10px}
.cta-block h3{font-size:1.15rem;font-weight:700;margin:0 0 6px}
.cta-block p{color:var(--ink-2);font-size:.92rem;margin-bottom:16px}
.cta-btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--font);font-size:1rem;font-weight:600;background:var(--cta);color:#fff;border:0;border-radius:14px;padding:14px 24px;text-decoration:none;transition:background 140ms}
.cta-btn:hover{background:var(--cta-deep)}
.related{margin-top:36px;padding-top:20px;border-top:1px solid var(--line)}
.related h4{font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--soft);margin:0 0 12px}
.related ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.related a{display:block;font-size:.96rem;font-weight:500;color:var(--ink);text-decoration:none;padding:12px 14px;background:var(--panel);border-radius:12px}
.related a:hover{background:#EEF3F6}
/* site footer — full-bleed dark band */
.site-foot{background:var(--foot);color:#fff;margin-top:56px;margin-inline:-18px;padding:52px 18px 40px;font-size:15px;line-height:1.6}
.foot-in{max-width:1040px;margin:0 auto}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1.15fr 1.15fr;gap:32px 28px}
.foot-logo{display:inline-flex;align-items:center;gap:9px;font-size:1.1rem;font-weight:700;color:#fff;text-decoration:none}
.foot-logo svg{width:28px;height:28px;flex:none}
.foot-blurb{margin-top:14px;font-size:.86rem;line-height:1.65;color:rgba(255,255,255,.72);max-width:34ch}
.foot-col h3{font-size:1.1rem;font-weight:600;color:#fff;margin:0 0 16px;letter-spacing:-0.01em}
.foot-col{display:flex;flex-direction:column;align-items:flex-start;gap:11px}
.foot-col a{font-size:.9rem;color:rgba(255,255,255,.78);text-decoration:none;transition:color 140ms}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.mailto{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:.9rem;font-weight:600;color:#fff;text-decoration:none;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:10px;padding:9px 14px;transition:background 140ms}
.mailto:hover{background:rgba(255,255,255,.2)}
.mailto svg{width:16px;height:16px;flex:none}
.foot-fine{margin-top:40px;padding-top:26px;border-top:1px solid rgba(255,255,255,.18);font-size:.8rem;line-height:1.7;color:rgba(255,255,255,.62)}
.foot-fine p + p{margin-top:14px}
.site-foot :focus-visible{outline:3px solid #9BE3EA;outline-offset:3px}
@media (max-width:760px){
  .site-foot{margin-top:40px;margin-inline:-16px;padding:36px 16px 32px}
  .foot-top{grid-template-columns:1fr 1fr;gap:28px 20px}
  .foot-brand{grid-column:1/-1}
  .foot-blurb{max-width:none}
  .foot-col h3{font-size:1rem;margin-bottom:12px}
  .foot-fine{margin-top:30px;padding-top:22px}
}
/* listing */
.cat-head{margin-top:14px}
.cat-head h1{font-size:clamp(1.7rem,5vw,2.1rem)}
.cat-head p{margin-top:8px;color:var(--ink-2);max-width:60ch}
.featured{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.card{display:block;text-decoration:none;color:inherit;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:box-shadow 140ms,transform 140ms}
.card:hover{box-shadow:0 8px 24px rgba(31,45,58,.08);transform:translateY(-1px)}
.card .thumb{background:var(--panel);aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;padding:14px}
.card .thumb svg{height:100%;width:auto;max-width:100%}
.card .body{padding:14px 16px 16px}
.card .body .eyebrow{margin-bottom:8px}
.card h3{font-size:1rem;font-weight:600;line-height:1.4}
.card .date{display:block;margin-top:8px;font-size:.8rem;color:var(--soft)}
.list-head{display:flex;align-items:baseline;justify-content:space-between;margin-top:34px}
.list-head h2{font-size:1.15rem}
.list-head span{font-size:.84rem;color:var(--soft)}
.rows{list-style:none;padding:0;margin:12px 0 0;display:grid;gap:12px}
.row{display:grid;grid-template-columns:200px 1fr;gap:18px;align-items:center;text-decoration:none;color:inherit;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:box-shadow 140ms}
.row:hover{box-shadow:0 8px 24px rgba(31,45,58,.08)}
.row .thumb{background:var(--panel);height:120px;display:flex;align-items:center;justify-content:center;padding:12px}
.row .thumb svg{height:100%;width:auto}
.row .body{padding:14px 16px 14px 0}
.row h3{font-size:1.02rem;font-weight:600;line-height:1.4;margin-top:6px}
.row .excerpt{font-size:.88rem;color:var(--ink-2);margin-top:6px}
.row .date{display:block;margin-top:8px;font-size:.8rem;color:var(--soft)}
.tip{margin-top:34px;background:var(--brand-soft);border-radius:20px;padding:22px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.tip .mascot{width:56px;height:56px;flex:none}
.tip .txt{flex:1;min-width:220px}
.tip h3{font-size:1.05rem;margin:0 0 4px}
.tip p{font-size:.9rem;color:var(--ink-2)}
@media (max-width:760px){
  body{padding-inline:16px}
  .featured{grid-template-columns:1fr}
  .row{grid-template-columns:1fr}
  .row .thumb{height:150px}
  .row .body{padding:0 16px 16px}
  /* header stays on one line */
  .bar{padding-block:18px 6px;gap:10px}
  .logo{font-size:1rem;white-space:nowrap}
  .logo svg{width:26px;height:26px}
  .back{font-size:.84rem;white-space:nowrap}
  .back-long{display:none}
  .back-short{display:inline}
  .crumbs{margin-top:16px;font-size:.8rem}
  /* byline: drop the separators so nothing dangles at a line break */
  .byline{gap:4px 10px;font-size:.82rem}
  .byline > span:nth-child(2n){display:none}
}
/* photo heroes */
.hero-img{margin:22px 0 0;border-radius:20px;overflow:hidden;background:var(--panel)}
.hero-img img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.card .thumb,.row .thumb{padding:0;overflow:hidden}
.card .thumb img,.row .thumb img{width:100%;height:100%;object-fit:cover;display:block}
/* feed (Toss-style, light) */
.banner{margin-top:34px;border-radius:22px;overflow:hidden;background:var(--brand)}
.banner-wide{display:block;width:100%;height:auto;aspect-ratio:1200/420;object-fit:cover}
.banner-sm{display:none}
@media (max-width:640px){
  .banner-wide{display:none}
  .banner-sm{display:flex;align-items:flex-end;justify-content:space-between;gap:10px;min-height:168px;padding:18px 0 0 18px}
  .banner-txt{padding-bottom:20px;min-width:0}
  .banner-eyebrow{display:flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;color:#fff;opacity:.95}
  .banner-eyebrow .mascot{width:20px;height:20px;flex:none}
  .banner-sm b{display:block;font-size:2rem;font-weight:700;color:#fff;line-height:1.1;letter-spacing:-0.02em;margin-top:6px}
  .banner-sub{display:block;font-size:.8rem;font-weight:500;color:#fff;opacity:.92;line-height:1.4;margin-top:6px}
  .banner-sm > img{width:132px;height:auto;flex:none;align-self:flex-end;display:block}
}
.feed2{display:grid;grid-template-columns:5fr 7fr;gap:48px;margin-top:44px}
.feed2 h2,.sec h2{font-size:1.5rem;letter-spacing:-0.02em}
.feed2 .sub,.sec .sub{margin-top:6px;color:var(--soft);font-size:.95rem}
.numlist{list-style:none;padding:0;margin:20px 0 0}
.numlist li{border-top:1px solid var(--line)}
.numlist li:first-child{border-top:0}
.numlist a{display:grid;grid-template-columns:28px 1fr;gap:12px;align-items:start;padding:16px 0;text-decoration:none;color:var(--ink);font-weight:500;font-size:1.02rem;line-height:1.45}
.numlist a:hover span:last-child{color:var(--brand-deep)}
.numlist .n{color:var(--brand);font-weight:700;font-size:1.1rem}
.quiz{margin-top:44px}
.qbox{margin-top:18px;background:var(--panel);border-radius:18px;padding:22px}
.qbox .q{font-size:1rem;font-weight:500;color:var(--ink);line-height:1.5}
.qbox .q b{color:var(--brand-deep)}
.qbox .opt{display:block;width:100%;margin-top:12px;font-family:var(--font);font-size:.98rem;font-weight:500;text-align:left;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;cursor:pointer;color:var(--ink)}
.qbox .opt:hover{border-color:var(--brand)}
.qbox .opt.right{border-color:var(--good);background:var(--good-wash);color:var(--good);font-weight:600}
.qbox .opt.wrong{opacity:.5}
.qbox .ans{margin-top:14px;font-size:.92rem;color:var(--ink-2);line-height:1.55}
.qbox .ans a{color:var(--brand-deep);font-weight:600;text-decoration:none}
.topical{margin-top:14px}
.trow{display:grid;grid-template-columns:1fr 210px;gap:22px;align-items:center;padding:22px 0;border-top:1px solid var(--line);text-decoration:none;color:inherit}
.trow:first-child{border-top:0;padding-top:12px}
.trow h3{font-size:1.15rem;font-weight:600;line-height:1.35}
.trow p{margin-top:6px;color:var(--ink-2);font-size:.92rem}
.trow .meta{display:block;margin-top:10px;font-size:.82rem;color:var(--soft)}
.trow img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;display:block}
.trow:hover h3{color:var(--brand-deep)}
.sec{margin-top:56px}
.series{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:20px}
.scard{display:block;text-decoration:none;color:inherit;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:box-shadow 140ms,transform 140ms}
.scard:hover{box-shadow:0 10px 28px rgba(31,45,58,.09);transform:translateY(-2px)}
.simg img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block}
.sbody{padding:16px 16px 18px}
.sbody h3{font-size:1.08rem;font-weight:600}
.sbody p{margin-top:8px;font-size:.88rem;color:var(--ink-2);line-height:1.5}
.sbody .count{display:inline-block;margin-top:12px;font-size:.74rem;font-weight:600;color:var(--soft);background:var(--panel);padding:4px 9px;border-radius:7px}
.latest{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:20px}
.lcard{display:block;text-decoration:none;color:inherit}
.lcard img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;display:block;transition:transform 160ms}
.lcard:hover img{transform:scale(1.02)}
.lcard h3{font-size:1.02rem;font-weight:600;line-height:1.4;margin-top:12px}
.lcard .date{display:block;margin-top:6px;font-size:.82rem;color:var(--soft)}
@media (max-width:900px){.feed2{grid-template-columns:1fr;gap:40px}.series{grid-template-columns:1fr 1fr}.latest{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.series,.latest{grid-template-columns:1fr}.trow{grid-template-columns:1fr}.trow img{aspect-ratio:16/9}}
/* fix: let CSS aspect-ratio win over the width/height attributes */
.trow img,.lcard img,.simg img,.card .thumb img,.row .thumb img,.banner img{height:auto}
.trow img{aspect-ratio:16/10;height:auto}
.lcard img{aspect-ratio:4/3;height:auto}
.simg img{aspect-ratio:1/1;height:auto}
.card .thumb img,.row .thumb img{height:100%}