@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Playfair+Display:wght@600;700&display=swap');
:root{--purple:#70479a;--purple-dark:#4e316e;--green:#087a45;--green-2:#1f9860;--ink:#2e2537;--muted:#6f6876;--paper:#fff;--soft:#f7f4fb;--soft-green:#eef7f1;--line:#e8e2ec;--max:1160px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"DM Sans",Arial,sans-serif;background:#fff;line-height:1.65}a{color:inherit;text-decoration:none}.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(112,71,154,.1);overflow:hidden}.top-shape{position:absolute;top:0;left:0;width:100%;height:8px;background:var(--purple)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;color:var(--purple-dark)}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--green);color:white;font-weight:800}.nav-links{display:flex;gap:26px;font-size:.92rem;font-weight:600;color:#5d5664}.nav-links a:hover{color:var(--purple)}.menu-btn{display:none;border:0;background:transparent;font-size:1.5rem;color:var(--purple)}
.hero{padding:76px 0 64px;background:linear-gradient(180deg,#fff 0%,#fbf9fd 100%);position:relative}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}.eyebrow{margin:0 0 12px;color:var(--purple);font-weight:800;font-size:.76rem;letter-spacing:.14em}.eyebrow.light{color:#ddd0eb}.hero h1,h2{font-family:"Playfair Display",Georgia,serif;line-height:1.08}.hero h1{font-size:clamp(2.5rem,5vw,4.7rem);margin:0 0 24px;max-width:720px}.hero h1 span{color:var(--green)}.lead{font-size:1.1rem;color:var(--muted);max-width:650px}.hero-art img{width:100%;display:block;filter:drop-shadow(0 24px 40px rgba(58,41,77,.12))}.hero-actions{display:flex;gap:12px;margin:28px 0 30px;flex-wrap:wrap}.btn{padding:13px 20px;border-radius:12px;font-weight:700;transition:.2s}.btn.primary{background:var(--purple);color:#fff}.btn.primary:hover{background:var(--purple-dark);transform:translateY(-2px)}.btn.secondary{border:1px solid var(--line);background:#fff;color:var(--purple)}.mini-stats{display:flex;gap:32px;flex-wrap:wrap}.mini-stats div{display:flex;flex-direction:column}.mini-stats strong{font-size:1.05rem;color:var(--green)}.mini-stats span{font-size:.8rem;color:var(--muted)}
.section{padding:88px 0}.section.alt{background:var(--soft)}.section-heading{max-width:760px;margin-bottom:42px}.section-heading h2,.band h2,.references h2{font-size:clamp(2rem,4vw,3.2rem);margin:0 0 14px}.section-heading>p:last-child{color:var(--muted);margin:0}.cards{display:grid;gap:18px}.cards.three{grid-template-columns:repeat(3,1fr)}.card{border:1px solid var(--line);padding:28px;border-radius:18px;background:#fff;box-shadow:0 8px 24px rgba(58,41,77,.04)}.card .icon{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--soft-green);color:var(--green);font-weight:800;margin-bottom:18px}.card h3{margin:0 0 8px}.card p{margin:0;color:var(--muted);font-size:.94rem}
.band{padding:58px 0;background:var(--purple);color:#fff;position:relative;overflow:hidden}.band:after{content:"";position:absolute;width:340px;height:340px;border:70px solid rgba(255,255,255,.06);border-radius:50%;right:-120px;top:-170px}.band-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.band h2{font-size:2.4rem}.band p:last-child{color:#eee6f4;max-width:600px}
.solution-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.solution{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.solution-number{flex:0 0 42px;height:42px;border-radius:12px;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:800}.solution h3{margin:0 0 5px}.solution p{margin:0;color:var(--muted);font-size:.92rem}
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.tech-card{border:1px solid var(--line);border-radius:16px;padding:23px;background:#fff}.tech-card b{display:block;color:var(--purple);font-size:1.05rem;margin-bottom:6px}.tech-card span{font-size:.88rem;color:var(--muted)}.flow-wrap{margin:38px 0 20px;border:1px solid var(--line);border-radius:18px;background:#fff;padding:24px;overflow:auto}.flow-wrap img{display:block;min-width:900px;width:100%}.note{padding:18px 20px;border-left:4px solid var(--green);background:var(--soft-green);border-radius:0 12px 12px 0;color:#496052;font-size:.92rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.lead-small{color:var(--muted)}.check-list{list-style:none;padding:0;margin:26px 0}.check-list li{padding:9px 0 9px 30px;position:relative}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:900}.water-card{border-radius:24px;background:linear-gradient(145deg,var(--purple-dark),var(--purple));padding:30px;color:#fff;box-shadow:0 22px 50px rgba(78,49,110,.22)}.water-step{display:grid;grid-template-columns:44px 1fr;column-gap:12px;align-items:center}.water-step span{grid-row:span 2;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.16);font-weight:800}.water-step b{font-size:.94rem}.water-step small{color:#ded4e8}.arrow{text-align:left;padding-left:17px;line-height:1;color:#cdbbdd;font-size:1.4rem}
.ods-box{display:grid;grid-template-columns:110px 1fr;gap:30px;align-items:center;border:1px solid #dfeae3;background:var(--soft-green);padding:32px;border-radius:22px}.ods-badge{width:100px;height:100px;border-radius:18px;background:var(--green);color:#fff;display:grid;place-content:center;text-align:center;line-height:1.05;font-size:.9rem}.ods-badge strong{font-size:2.4rem}.ods-box h2{font-family:"Playfair Display",Georgia,serif;font-size:2.4rem;margin:0 0 10px}.ods-box p:last-child{color:var(--muted);margin:0}.impact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:16px}.impact-grid div{border:1px solid var(--line);border-radius:16px;padding:20px}.impact-grid strong{display:block;color:var(--green);font-size:1.1rem}.impact-grid span{font-size:.85rem;color:var(--muted)}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.timeline>div{position:relative;padding:24px;border:1px solid var(--line);border-radius:18px;background:#fff}.timeline span{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--purple);color:#fff;font-weight:800}.timeline h3{margin:16px 0 5px}.timeline p{margin:0;color:var(--muted);font-size:.9rem}
.team-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.team-grid div{padding:15px 18px;border:1px solid var(--line);border-radius:12px;background:#fff;font-weight:600}.institution{margin-top:25px;padding:20px;border-radius:16px;background:var(--soft);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.institution span{color:var(--muted)}
.references{padding:72px 0;background:var(--purple-dark);color:#fff}.references p:not(.eyebrow){color:#ded5e7;max-width:800px}.ref-list{display:flex;gap:9px;flex-wrap:wrap;margin-top:22px}.ref-list span{padding:9px 12px;border:1px solid rgba(255,255,255,.18);border-radius:999px;font-size:.78rem;color:#eee7f3}
footer{background:#2b1e37;color:#cfc5d8;padding:36px 0}.footer-grid{display:flex;justify-content:space-between;gap:40px}.footer-brand{color:#fff;margin-bottom:10px}.footer-grid p{max-width:500px;margin:0;font-size:.88rem}.footer-grid>div:last-child{display:flex;flex-direction:column;gap:5px;text-align:right;font-size:.8rem}
@media(max-width:900px){.hero-grid,.band-grid,.split{grid-template-columns:1fr}.hero-art{order:-1;max-width:650px;margin:auto}.cards.three,.tech-grid{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:repeat(2,1fr)}.impact-grid{grid-template-columns:repeat(2,1fr)}.band-grid{gap:20px}.footer-grid{flex-direction:column}.footer-grid>div:last-child{text-align:left}}
@media(max-width:680px){.container{width:min(var(--max),calc(100% - 28px))}.nav{height:68px}.menu-btn{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;padding:18px 20px;border-bottom:1px solid var(--line);flex-direction:column;gap:12px}.nav-links.open{display:flex}.hero{padding:44px 0}.hero h1{font-size:2.55rem}.section{padding:62px 0}.cards.three,.solution-grid,.tech-grid,.timeline,.impact-grid,.team-grid{grid-template-columns:1fr}.ods-box{grid-template-columns:1fr}.hero-actions .btn{width:100%;text-align:center}.flow-wrap{padding:12px}.water-card{padding:22px}}