:root{--green:#075c37;--green2:#0d7347;--dark:#073a2a;--lime:#9bd64a;--ink:#18201b;--muted:#58635d;--line:#dfe7e1;--soft:#f3f7f2;--white:#fff;--max:1280px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.55}a{color:inherit}.wrap{width:min(var(--max),calc(100% - 42px));margin:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:16px;z-index:99;background:#fff;padding:10px 14px;border-radius:10px}.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(7,92,55,.08)}.nav-wrap{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{text-decoration:none;display:grid;grid-template-columns:auto auto;column-gap:10px;align-items:center;line-height:.9}.brand-ysi{grid-row:1/3;color:var(--green);font-size:2.5rem;font-weight:950;letter-spacing:-.06em}.brand-africa{font-size:.9rem;font-weight:900;letter-spacing:.12em}.brand-name{font-size:.66rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-top:5px}.nav{display:flex;align-items:center;gap:24px;font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.035em}.nav a{text-decoration:none}.nav a:hover{color:var(--green2)}.nav-cta{background:var(--green);color:#fff!important;padding:13px 17px;border-radius:8px}.menu{display:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 14px;font-weight:800}.hero{padding:56px 0 0;background:linear-gradient(90deg,#fff 0,#fff 42%,#edf7f1 100%)}.hero-grid{display:grid;grid-template-columns:.82fr 1.18fr;min-height:530px;align-items:center;gap:36px}.hero-copy{padding:35px 0 70px}.eyebrow{text-transform:uppercase;letter-spacing:.15em;font-size:.72rem;font-weight:900;color:var(--green2);margin:0 0 13px}.hero h1{font-size:clamp(3rem,5vw,5.1rem);line-height:.97;letter-spacing:-.055em;margin:0 0 25px;text-transform:uppercase}.hero h1 span{color:var(--green)}.intro{font-size:1.12rem;max-width:650px;color:#3f4944}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:7px;text-decoration:none;font-weight:900;text-transform:uppercase;letter-spacing:.025em;font-size:.82rem}.btn-primary{background:var(--green);color:#fff}.btn-secondary{border:2px solid var(--green);color:var(--green);background:#fff}.hero-photo{align-self:stretch;margin:0;position:relative;overflow:hidden;min-height:530px;background:#dfe9df}.hero-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.28),transparent 25%)}.hero-photo figcaption{position:absolute;z-index:2;right:14px;bottom:12px;max-width:410px;background:rgba(4,39,27,.73);color:#fff;padding:8px 11px;border-radius:6px;font-size:.66rem;backdrop-filter:blur(6px)}.impact-strip{background:linear-gradient(90deg,#0b5d36,#0b6c3a);color:#fff}.impact-grid{display:grid;grid-template-columns:repeat(4,1fr)}.impact-item{padding:24px 27px;border-right:1px solid rgba(255,255,255,.25)}.impact-item:last-child{border-right:0}.impact-item strong,.impact-item span,.impact-item small{display:block}.impact-item strong{font-size:1.75rem;color:var(--lime);letter-spacing:-.03em}.impact-item span{font-weight:900;text-transform:uppercase}.impact-item small{color:#e3eee8;margin-top:4px}.section{padding:96px 0}.section-head{text-align:center;max-width:820px;margin:0 auto 45px}.section h2{font-size:clamp(2.2rem,4vw,3.7rem);line-height:1.02;letter-spacing:-.045em;margin:0 0 18px}.section-head>p:last-child,.lede,.body-copy,.project p{color:var(--muted)}.cards{display:grid;gap:16px}.four{grid-template-columns:repeat(4,1fr)}.card{border:1px solid var(--line);border-radius:16px;padding:30px 25px;background:#fff;min-height:270px}.icon{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:#e9f5dd;color:var(--green);font-size:1.8rem;font-weight:900;margin-bottom:23px}.card h3{font-size:1.25rem;line-height:1.2;color:var(--green);margin:0 0 12px}.card p{color:var(--muted);font-size:.94rem}.soft{background:var(--soft)}.project-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:66px;align-items:start}.project-stack{display:grid;gap:14px}.project{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px}.project.featured{border-left:5px solid var(--green)}.project h3{font-size:1.45rem;margin:12px 0 7px}.pill{display:inline-block;background:#dff1d1;color:#35651e;border-radius:999px;padding:6px 9px;font-size:.68rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em}.pill.alt{background:#d8efeb;color:#0d6254}.pill.dev{background:#ecefed;color:#5c6661}.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.body-copy{font-size:1.08rem}.dark{background:var(--dark);color:#fff}.eyebrow.light{color:#b7dc9d}.transparency-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:start}.dark p{color:#d0e2d8}.principles{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.principles>div{border:1px solid rgba(255,255,255,.15);border-radius:14px;padding:22px;display:flex;gap:15px;background:rgba(255,255,255,.035)}.principles b{color:var(--lime)}.principles strong,.principles small{display:block}.principles small{color:#bcd0c5;margin-top:4px}.contact{padding-bottom:110px}.contact-box{background:linear-gradient(125deg,#eff7e9,#eef7f4);border:1px solid #d7e5d8;border-radius:20px;padding:55px;display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:center}.contact-box p:last-child{color:var(--muted)}.contact-actions{display:grid;gap:12px;justify-items:start}.light-btn{min-width:180px}.contact-actions span{font-size:.9rem;color:var(--green);font-weight:800}.footer{background:#052d20;color:#fff;padding:50px 0 23px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:50px}.footer-grid strong,.footer-grid span,.footer-grid small{display:block}.footer-grid strong{font-size:1.5rem}.footer-grid span{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:#bdd0c4}.footer-grid small{color:#a9c0b3;margin-top:7px}.footer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.footer-links a{text-decoration:none;color:#d8e6de;font-size:.85rem}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:20px;color:#9fb7aa;font-size:.75rem}

/* Flagship project */
.flagship-hero{padding:82px 0 70px;background:linear-gradient(120deg,#f9fcf8 0,#eef7f0 60%,#dff0e3 100%)}.flagship-hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:58px;align-items:center}.flagship-hero h1{font-size:clamp(3rem,6vw,5.7rem);line-height:.94;letter-spacing:-.06em;text-transform:uppercase;margin:0 0 26px}.flagship-hero h1 span{color:var(--green)}.flagship-intro{font-size:1.17rem;max-width:790px;color:#3f4d45}.flagship-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:27px}.flagship-tags span{border:1px solid #bfd5c4;background:rgba(255,255,255,.72);border-radius:999px;padding:8px 12px;font-size:.73rem;font-weight:900;text-transform:uppercase;letter-spacing:.05em;color:#315944}.flagship-callout{background:var(--dark);color:#fff;border-radius:24px;padding:38px;box-shadow:0 24px 60px rgba(6,56,34,.16)}.flagship-callout small{display:block;color:var(--lime);font-weight:900;letter-spacing:.12em;margin-bottom:13px}.flagship-callout strong{display:block;font-size:2rem;line-height:1.08;letter-spacing:-.035em}.flagship-callout p{color:#cfe0d6;margin-bottom:0}.tight-section{padding:55px 0}.flagship-split{align-items:start}.compact-copy p{margin-top:0;margin-bottom:18px}.flagship-head{max-width:900px}.step-num{font-size:.73rem;font-weight:950;letter-spacing:.1em;color:var(--green2);margin-bottom:26px}.flagship-cards .card{min-height:235px}.flagship-dark-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}.flow-columns{display:grid;grid-template-columns:1fr 1fr;gap:14px}.flow-columns>div{border:1px solid rgba(255,255,255,.15);border-radius:16px;padding:27px;background:rgba(255,255,255,.04)}.flow-columns h3{color:var(--lime);text-transform:uppercase;letter-spacing:.05em;margin:0 0 10px}.flow-columns p{margin:0}.flagship-proof-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}.clean-list{margin:0;padding:0;list-style:none;display:grid;gap:10px}.clean-list li{position:relative;padding:15px 18px 15px 47px;border:1px solid var(--line);border-radius:12px;background:#fff;color:#46554d}.clean-list li:before{content:"✓";position:absolute;left:17px;top:13px;color:var(--green);font-weight:950}.flagship-status{padding-top:40px;padding-bottom:110px}.text-link{display:inline-block;margin-top:10px;font-weight:900;color:var(--green);text-decoration:none}.text-link:hover{text-decoration:underline}

@media(max-width:1040px){.nav{gap:14px;font-size:.7rem}.hero-grid{grid-template-columns:1fr}.hero-copy{padding-bottom:30px}.hero-photo{min-height:480px}.four{grid-template-columns:repeat(2,1fr)}.project-layout,.split,.transparency-grid{grid-template-columns:1fr}.impact-grid{grid-template-columns:repeat(2,1fr)}.impact-item:nth-child(2){border-right:0}.contact-box{grid-template-columns:1fr}.flagship-hero-grid,.flagship-dark-grid,.flagship-proof-grid{grid-template-columns:1fr}.flagship-hero{padding-top:60px}.flow-columns{grid-template-columns:1fr 1fr}}
@media(max-width:760px){.wrap{width:min(var(--max),calc(100% - 28px))}.nav-wrap{min-height:70px}.brand-name{display:none}.brand-ysi{font-size:2rem}.menu{display:block}.nav{display:none;position:absolute;left:14px;right:14px;top:70px;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;box-shadow:0 18px 45px rgba(0,0,0,.1)}.nav.open{display:flex}.nav a{padding:8px}.nav-cta{text-align:center}.hero{padding-top:26px}.hero-grid{gap:12px}.hero h1{font-size:clamp(2.7rem,14vw,4rem)}.hero-photo{min-height:330px}.hero-photo figcaption{left:8px;right:8px;font-size:.61rem}.impact-grid,.four,.principles,.footer-grid{grid-template-columns:1fr}.impact-item{border-right:0;border-bottom:1px solid rgba(255,255,255,.18)}.section{padding:72px 0}.project-layout,.split,.transparency-grid{gap:35px}.contact-box{padding:35px 25px}.footer-links{grid-template-columns:1fr 1fr}.flagship-hero{padding:48px 0}.flagship-hero-grid{gap:28px}.flagship-hero h1{font-size:clamp(2.65rem,13vw,4.2rem)}.flagship-callout{padding:28px}.flagship-callout strong{font-size:1.6rem}.flagship-tags{gap:6px}.flagship-tags span{font-size:.65rem}.tight-section{padding:30px 0}.flow-columns,.flagship-dark-grid,.flagship-proof-grid{grid-template-columns:1fr;gap:16px}.flagship-status{padding-bottom:75px}}

/* Documentary field evidence */
.field-evidence{background:linear-gradient(180deg,#f8fbf7 0,#f1f7f2 100%)}
.field-evidence-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:52px;align-items:center}
.field-evidence-copy h2{margin-bottom:18px}
.field-evidence-copy>p:not(.eyebrow){color:var(--muted);max-width:620px}
.field-proof{display:flex;flex-wrap:wrap;gap:9px 14px;align-items:center;margin-top:25px;padding-top:18px;border-top:1px solid #d5e2d7}
.field-proof strong{color:var(--green);font-size:.75rem;text-transform:uppercase;letter-spacing:.08em}
.field-proof span{color:var(--muted);font-size:.8rem}
.flagship-field-evidence{background:#fff;border-top:1px solid #edf2ed;border-bottom:1px solid #edf2ed}
@media(max-width:1040px){.field-evidence-grid{grid-template-columns:1fr;gap:28px}.field-evidence-copy>p:not(.eyebrow){max-width:800px}}
@media(max-width:760px){.field-evidence{padding:62px 0}}

/* Visual-first direction — September 2026 */
:root{--forest:#043d2b;--forest-deep:#022d20;--canopy:#0a6a43;--leaf:#a8df58;--mist:#edf3ee;--sand:#e5d7bc;--water:#3f7670}
body{background:#fbfcfa}
.header{background:rgba(251,252,250,.9);border-bottom:1px solid rgba(4,61,43,.09)}
.nav-wrap{min-height:74px}.brand-ysi{font-size:2.2rem}.nav{gap:19px;font-size:.71rem}.nav-cta{border-radius:999px;padding:12px 17px}
.btn{border-radius:999px;min-height:50px}.btn-primary{background:var(--forest)}.btn-primary:hover{background:var(--canopy)}.btn-secondary{border-color:currentColor;background:transparent}
.section{padding:104px 0}.section h2{max-width:900px}.section-head{text-align:left;margin-left:0;max-width:900px}.eyebrow{color:var(--canopy);font-size:.68rem;letter-spacing:.18em}
.card,.project,.phase-output,.public-loop div{border-radius:22px}.card{box-shadow:0 16px 45px rgba(2,45,32,.04)}
.footer{background:var(--forest-deep)}

/* Immersive homepage */
.home-immersive-hero{min-height:78vh;position:relative;display:flex;align-items:flex-end;background:#173d31;overflow:hidden}.home-immersive-hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}.home-immersive-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(2,23,17,.12) 0%,rgba(2,29,21,.22) 35%,rgba(2,29,21,.91) 100%)}.home-immersive-content{position:relative;z-index:2;color:#fff;padding:180px 0 66px}.home-immersive-content .eyebrow{color:#d2efa9}.home-immersive-content h1{font-size:clamp(3.7rem,8.2vw,8rem);line-height:.84;letter-spacing:-.07em;text-transform:uppercase;margin:0;max-width:1120px}.home-immersive-content h1 span{color:var(--leaf)}.home-immersive-content .intro{color:#edf5f0;max-width:740px;font-size:1.12rem;margin:24px 0 0}.home-immersive-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.home-immersive-actions .btn-secondary{color:#fff;border-color:rgba(255,255,255,.8)}.hero-proof-label{position:absolute;right:22px;bottom:18px;z-index:3;max-width:380px;background:rgba(2,29,21,.75);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.18);color:#e8f2ec;padding:10px 13px;border-radius:10px;font-size:.66rem}.hero-proof-label strong{color:#fff}
.home-impact{background:var(--forest);color:#fff;border-top:1px solid rgba(255,255,255,.15)}.home-impact-grid{display:grid;grid-template-columns:1.15fr repeat(3,.75fr)}.home-impact-item{padding:27px 28px;border-right:1px solid rgba(255,255,255,.16)}.home-impact-item:last-child{border-right:0}.home-impact-item b,.home-impact-item strong,.home-impact-item span{display:block}.home-impact-item b{color:var(--leaf);font-size:2rem;line-height:1}.home-impact-item strong{text-transform:uppercase;letter-spacing:.05em;font-size:.8rem;margin-top:7px}.home-impact-item span{color:#cbdcd2;font-size:.75rem;margin-top:4px}.home-impact-item.primary b{font-size:2.7rem}.home-impact-item a{color:#fff;font-weight:800;font-size:.72rem}
.story-intro{background:#fff}.story-intro-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:72px;align-items:start}.story-kicker{font-size:clamp(2.8rem,5.4vw,5.5rem)!important;line-height:.92!important;text-transform:uppercase}.story-copy{font-size:1.2rem;color:#3f4b45;max-width:720px}.story-copy strong{color:var(--forest)}
.place-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.place-card{position:relative;min-height:560px;overflow:hidden;border-radius:28px;background:#12382d;color:#fff}.place-card.small{min-height:560px}.place-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.place-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(2,29,21,.05),rgba(2,29,21,.86))}.place-content{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:38px}.place-content .pill{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.25)}.place-content h3{font-size:clamp(2rem,3.8vw,4rem);line-height:.93;letter-spacing:-.05em;margin:15px 0 12px;text-transform:uppercase}.place-content p{max-width:620px;color:#e6efea;margin:0}.place-content a{color:#fff}.media-note{display:block;margin-top:14px;color:#c6d8ce;font-size:.66rem;line-height:1.45}.media-note a{text-decoration:underline}
.system-section{background:var(--forest-deep);color:#fff}.system-section .eyebrow{color:var(--leaf)}.system-section h2{color:#fff}.system-section .lede{color:#c8d8cf}.system-rail{display:grid;grid-template-columns:repeat(7,1fr);gap:1px;margin-top:42px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.13);border-radius:22px;overflow:hidden}.system-step{background:var(--forest);padding:26px 18px;min-height:190px}.system-step b{display:block;color:var(--leaf);font-size:.68rem;letter-spacing:.12em}.system-step strong{display:block;text-transform:uppercase;font-size:1rem;margin:35px 0 9px}.system-step span{color:#bdd1c5;font-size:.75rem}.system-step:last-child{background:#0c6945}
.visual-project-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:17px}.visual-project{border-radius:26px;overflow:hidden;background:#fff;border:1px solid var(--line);display:flex;flex-direction:column}.visual-project-media{position:relative;min-height:300px;overflow:hidden;background:#dde8df}.visual-project-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.visual-project:hover .visual-project-media img{transform:scale(1.025)}.visual-project-copy{padding:26px 25px 28px}.visual-project-copy h3{font-size:1.55rem;line-height:1.08;color:var(--forest);margin:12px 0 10px}.visual-project-copy p{color:var(--muted)}.visual-project-copy .media-note{color:#718079}
.evidence-band{background:linear-gradient(115deg,#e9f2eb 0%,#f7f3e8 100%)}.evidence-band-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:65px;align-items:center}.evidence-points{display:grid;grid-template-columns:1fr 1fr;gap:12px}.evidence-points div{background:rgba(255,255,255,.78);border:1px solid rgba(4,61,43,.12);border-radius:18px;padding:22px}.evidence-points b{display:block;color:var(--canopy);font-size:.68rem;letter-spacing:.1em}.evidence-points strong{display:block;margin-top:9px}.institutional-home-card{border-radius:28px;background:var(--forest);color:#fff;border:0}.institutional-home-card .eyebrow{color:var(--leaf)}.institutional-home-card p:last-child{color:#cbdad2}.institutional-home-card .text-link{color:#fff}

/* Existing project pages receive a more editorial/visual treatment without changing evidence claims */
.flagship-hero{background:linear-gradient(120deg,#f7f4e9 0%,#edf5ef 60%,#dcece2 100%);padding:98px 0 82px}.flagship-callout{border-radius:28px}.phase-panel,.library-card,.decision-box,.contact-box{border-radius:26px}.public-loop{gap:8px}.public-loop div{border-radius:18px}.field-record{border-radius:26px}.field-record img{filter:saturate(.96) contrast(1.02)}

@media(max-width:1100px){.home-impact-grid{grid-template-columns:1fr 1fr}.home-impact-item:nth-child(2){border-right:0}.place-grid,.story-intro-grid,.evidence-band-grid{grid-template-columns:1fr}.visual-project-grid{grid-template-columns:1fr 1fr}.system-rail{grid-template-columns:repeat(4,1fr)}.system-step{min-height:160px}}
@media(max-width:760px){.section{padding:74px 0}.home-immersive-hero{min-height:75vh}.home-immersive-content{padding:130px 0 46px}.home-immersive-content h1{font-size:clamp(3.15rem,17vw,5rem)}.hero-proof-label{position:relative;right:auto;bottom:auto;margin:0 14px 14px}.home-impact-grid,.visual-project-grid,.evidence-points,.system-rail{grid-template-columns:1fr}.home-impact-item{border-right:0;border-bottom:1px solid rgba(255,255,255,.14)}.story-intro-grid{gap:26px}.place-card,.place-card.small{min-height:430px}.place-content{padding:26px 22px}.system-step{min-height:auto}.system-step strong{margin-top:17px}.nav-wrap{min-height:68px}.header{background:rgba(251,252,250,.96)}}