:root{--green:#073d07;--accent:#008000;--ink:#18211b;--muted:#536259;--line:#dce3de;--wash:#f4f7f4;--serif:Georgia,'Times New Roman',serif;--sans:Arial,'Helvetica Neue',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:20px}body{margin:0;color:var(--ink);background:#fff;font:18px/1.65 var(--sans)}a{color:inherit;text-decoration:none;text-underline-offset:4px}a:hover{text-decoration:underline}button,input,select{font:inherit}button{cursor:pointer;background:var(--green);color:#fff;border:1px solid var(--green);padding:11px 20px;min-height:46px;font-size:15px;font-weight:bold}button:hover{background:#125012}input,select{padding:11px;border:1px solid #7c897d;min-width:0;min-height:46px;background:#fff}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid 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/* Topic archive structure inspired by Chicago Booth Review; original PPI styling. */
.story-art{position:relative;aspect-ratio:5/3;background:#dce9df;margin-bottom:20px;overflow:hidden}.story-art svg{width:100%;height:100%}.story-art circle{fill:#b0cbb3}.story-art path{fill:none;stroke:#286940;stroke-width:9}.story-art span{position:absolute;bottom:9px;right:12px;font-size:11px;color:#214e32}.art-1{background:#ede8d6}.art-1 circle{fill:#d8c784}.art-2{background:#dbe8ec}.art-2 circle{fill:#a3c3cf}.art-3{background:#e8dfeb}.art-3 circle{fill:#c9b4cf}.card{border-right:0;padding-right:0}.card .story-summary{font-size:17px;line-height:1.6;color:var(--ink)}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:35px}.topic-intro{max-width:800px;margin:45px auto 65px}.topic-intro h1{font-size:62px}.topic-intro p{max-width:700px;font-size:18px;color:var(--muted)}.archive-filter{align-items:center;border-bottom:1px solid var(--line);padding-bottom:22px}.recent-label{border-bottom:4px solid var(--accent);font-size:18px;margin-right:auto;padding-bottom:8px}.archive-filter input{flex:0 1 220px}.archive-grid{gap:48px 30px}.archive-grid .card{padding:0;border:0}.archive-grid h3{font-size:27px}.load-more{text-align:center;margin:45px 0}.load-more button{background:white;color:var(--green)}.topic-description{max-width:800px;margin:60px auto;font-size:18px}.topic-description h2{font-size:32px}.footer-row{align-items:flex-start} .grid .card .label{display:block}
@media(max-width:700px){.topic-intro{margin:30px 0 40px}.topic-intro h1{font-size:40px}.archive-filter{gap:14px}.recent-label{width:100%}.archive-filter input{flex:1 1 100%}.archive-grid{gap:32px}.archive-grid .card{padding:0}.story-art{margin-bottom:16px}.topic-description{margin:40px 0}.grid:not(.archive-grid) .story-art{max-height:240px}.topic-intro p{font-size:17px}}

.primary-nav{display:flex;gap:32px;align-items:center;border-top:2px solid var(--green);border-bottom:1px solid var(--line);padding:12px 0;font-size:15px}.topic-menu{position:relative}.topic-menu summary{cursor:pointer;color:var(--green);font-weight:bold;padding:7px 0}.topic-links{position:absolute;top:100%;left:0;z-index:10;background:white;border:1px solid var(--line);box-shadow:0 12px 24px #18211b15;width:320px;padding:10px}.topic-links a{display:block;padding:10px 12px;font-size:14px;line-height:1.4}.topic-links a:hover{background:var(--wash)}.footer-links{display:flex;flex-wrap:wrap;gap:14px 24px;margin-top:24px;font-size:13px}.masthead{padding:20px 0}.brand img{width:65px;height:66px}.brand strong{font-size:29px}.brand small{margin-top:6px}
@media(max-width:700px){.primary-nav{gap:20px;font-size:13px;justify-content:space-between}.topic-links{width:min(310px,calc(100vw - 40px))}.brand strong{font-size:22px}.brand img{width:48px;height:55px}.masthead{padding:16px 0}.footer-links{gap:12px 20px}}

/* Compact, balanced PPI masthead */
.masthead{gap:24px;padding:22px 0;align-items:center}.brand{gap:16px;min-width:0}.brand img{width:58px;height:58px;flex-shrink:0}.brand strong{font:700 27px/1.2 var(--serif);letter-spacing:-.4px;max-width:440px}.brand small{font-size:10px;letter-spacing:1.4px;margin-top:7px}.tools{flex-direction:row;gap:16px;align-items:center;flex-shrink:0;font-size:13px}.tools>a:first-child{border:0;padding:8px 0}.language{padding:5px 9px;line-height:1.4}.primary-nav{padding:7px 0}
@media(max-width:700px){.masthead{padding:18px 0;gap:12px;align-items:center}.brand{gap:10px;flex:1}.brand img{width:43px;height:43px}.brand strong{font-size:20px;line-height:1.15;max-width:235px;letter-spacing:-.25px}.brand small{font-size:9px;letter-spacing:.5px;margin-top:5px}.tools{gap:6px;flex-direction:column;font-size:12px}.tools>a:first-child{padding:0}.language{padding:3px 7px}.primary-nav{gap:12px;font-size:12px;padding:6px 0}}
@media(max-width:360px){.brand strong{font-size:17px}.brand img{width:36px;height:40px}.brand{gap:8px}.brand small{font-size:8px}.masthead{gap:8px}.primary-nav{font-size:11px}}

.masthead-mn{background:#60646b;padding:18px 24px;margin:16px 0;color:white}.masthead-mn .brand{flex:1}.masthead-mn .brand .logo-full{width:330px;height:auto;max-width:100%;object-fit:contain}.masthead-mn .language{color:white;border-color:#66816e}.masthead-mn .tools{color:white}@media(max-width:700px){.masthead-mn{padding:16px;margin:12px 0}.masthead-mn .brand .logo-full{width:270px}.masthead-mn .brand{min-width:0}.masthead-mn .tools{margin-left:6px}}