:root{--green:#178b57;--dark:#123a2b;--lime:#c9f36a;--cream:#f7f8ec;--text:#40534b;--white:#fff;--shadow:0 18px 50px rgba(25,87,60,.1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{font-family:'Be Vietnam Pro',sans-serif;color:var(--text);overflow-x:hidden;background:#fff}h1,h2,h3,h4,.navbar-brand{font-family:'Baloo 2',sans-serif;color:var(--dark);font-weight:800}p{line-height:1.75}a{text-decoration:none}.section{padding:110px 0}.navbar{padding:18px 0;transition:.35s}.navbar.scrolled{padding:10px 0;background:rgba(255,255,255,.94);box-shadow:0 8px 35px rgba(18,58,43,.08);backdrop-filter:blur(14px)}.navbar-brand{font-size:1.55rem}.brand-icon{display:inline-grid;place-items:center;width:39px;height:39px;border-radius:12px;color:#fff;background:var(--green);transform:rotate(-8deg)}.navbar-brand b{color:var(--green)}.nav-link{font-weight:600;color:var(--dark);padding:.65rem .85rem!important}.nav-link:hover,.nav-link.active{color:var(--green)}.nav-cta{color:#fff!important;background:var(--green);border-radius:13px;padding:.75rem 1.1rem!important;margin-left:8px}.hero{min-height:100vh;position:relative;overflow:hidden;background:linear-gradient(130deg,#fbfdf2 0%,#edfae9 55%,#e1f8e9 100%)}.hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(#6dbb85 1px,transparent 1px);background-size:28px 28px;opacity:.13}.hero-blob{position:absolute;border-radius:50%;filter:blur(3px)}.blob-one{width:380px;height:380px;background:#d8f79b;right:-130px;top:-80px}.blob-two{width:220px;height:220px;background:#b9ecce;left:-90px;bottom:-70px}.eyebrow{display:inline-flex;align-items:center;gap:8px;text-transform:uppercase;letter-spacing:1.5px;font-size:.76rem;font-weight:700;color:var(--green);background:#e2f5dc;padding:9px 14px;border-radius:50px}.hero h1{font-size:clamp(3.2rem,6vw,5.7rem);line-height:.92;letter-spacing:-2px;margin:25px 0}.hero h1 span,.section-heading h2 span{color:var(--green)}.hero-text{font-size:1.08rem;max-width:600px;margin-bottom:30px}.btn{font-weight:700;border-radius:14px;padding:14px 22px;transition:.3s}.btn-green{background:var(--green);color:#fff;box-shadow:0 10px 25px rgba(23,139,87,.25)}.btn-green:hover{background:#0f7547;color:#fff;transform:translateY(-3px)}.btn-video{color:var(--dark);background:#fff;border:1px solid #dce7dc}.btn-video i{color:#ff826f;margin-right:7px}.hero-stats{display:flex;gap:32px;margin-top:40px}.hero-stats div{display:flex;flex-direction:column}.hero-stats b{font:800 1.6rem 'Baloo 2';color:var(--dark)}.hero-stats span{font-size:.72rem}.earth-card{position:relative;width:min(500px,90vw);height:500px;margin:auto;background:rgba(255,255,255,.48);border:1px solid rgba(255,255,255,.7);border-radius:45% 55% 55% 45%;box-shadow:var(--shadow);display:grid;place-items:center}.earth{font-size:14rem;color:var(--green);filter:drop-shadow(0 18px 20px rgba(20,100,60,.2));animation:float 5s ease-in-out infinite}.orbit{position:absolute;border:1px dashed rgba(23,139,87,.32);border-radius:50%;animation:spin 15s linear infinite}.orbit-1{width:350px;height:350px}.orbit-2{width:430px;height:430px;animation-direction:reverse;animation-duration:21s}.orbit span{position:absolute;top:-22px;left:50%;width:44px;height:44px;display:grid;place-items:center;border-radius:50%;background:#fff;color:var(--green);box-shadow:0 8px 20px #b6d3c3}.leaf{position:absolute;color:#80ba31;font-size:2rem}.leaf-a{left:15%;top:18%;transform:rotate(-30deg)}.leaf-b{right:12%;bottom:18%;transform:rotate(40deg)}.mini-note{position:absolute;bottom:30px;left:5px;background:#fff;border-radius:18px;padding:13px 18px;box-shadow:var(--shadow);display:flex;align-items:center;gap:12px}.mini-note>i{color:#ff7668;font-size:1.5rem}.mini-note div{display:flex;flex-direction:column}.mini-note b{color:var(--dark)}.mini-note small{font-size:.7rem}.scroll-hint{position:absolute;bottom:22px;left:50%;width:25px;height:39px;border:2px solid var(--green);border-radius:20px}.scroll-hint span{display:block;width:4px;height:8px;border-radius:3px;background:var(--green);margin:7px auto;animation:scroll 1.8s infinite}.section-heading h2{font-size:clamp(2.5rem,5vw,4rem);line-height:1;margin:17px 0}.section-heading>p{max-width:650px;margin-inline:auto}.info-card{height:100%;position:relative;padding:35px;border-radius:24px;background:#fff;box-shadow:var(--shadow);border-top:4px solid}.info-card.coral{border-color:#ff826f}.info-card.blue{border-color:#59aee7}.info-card.green{border-color:var(--green)}.card-icon{width:65px;height:65px;display:grid;place-items:center;border-radius:18px;font-size:1.6rem;background:#eff8e9;color:var(--green);margin-bottom:25px}.info-card>span{position:absolute;right:25px;top:22px;font:800 2rem 'Baloo 2';color:#e6ece8}.info-card h3,.action-card h3{font-size:1.45rem}.actions{background:var(--cream)}.action-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.action-card{position:relative;background:#fff;border-radius:22px;padding:28px;transition:.35s;border:1px solid #edf0e8}.action-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}.action-no{position:absolute;right:22px;color:#d9e1db;font:800 1.3rem 'Baloo 2'}.action-icon{width:58px;height:58px;display:grid;place-items:center;border-radius:17px;margin-bottom:20px;font-size:1.4rem}.action-icon.yellow{background:#fff3c9;color:#e9a400}.action-icon.blue{background:#dff3ff;color:#248aca}.action-icon.green{background:#dff4e6;color:var(--green)}.action-icon.purple{background:#eee5ff;color:#8056bd}.action-icon.coral{background:#ffe5e1;color:#e35e4b}.action-icon.lime{background:#ecf8cd;color:#719d19}.action-card small{color:var(--green);font-weight:600}.waste{background:#fff}.bin-card{width:100%;border:0;background:transparent;display:flex;flex-direction:column;align-items:center;gap:10px;padding:20px;border-radius:22px;transition:.3s;color:var(--text)}.bin-card:hover,.bin-card.active{background:#f3f8ef;transform:translateY(-5px)}.bin{font-size:7rem;filter:drop-shadow(0 12px 10px rgba(0,0,0,.13));transition:.3s}.bin-card:hover .bin{transform:rotate(-4deg) scale(1.06)}.bin.brown{color:#9a6a46}.bin.green{color:#38a76c}.bin.dark{color:#50635b}.bin.red{color:#e56058}.bin-card b{color:var(--dark);font-size:1.05rem}.bin-card span{font-size:.78rem}.bin-result{max-width:700px;margin:35px auto 0;padding:18px 25px;border-radius:15px;background:#eff8ec;color:var(--dark);display:flex;gap:12px;align-items:center}.bin-result i{color:var(--green)}.challenge{background:linear-gradient(#fff 50%,#f2f8ed 50%)}.challenge-box{padding:55px;border-radius:30px;background:var(--dark);color:#d9e9e0;box-shadow:0 25px 70px rgba(18,58,43,.2);overflow:hidden;position:relative}.challenge-box:after{content:"";position:absolute;width:300px;height:300px;border:70px solid rgba(201,243,106,.06);border-radius:50%;right:-140px;top:-140px}.eyebrow.light{background:rgba(201,243,106,.14);color:var(--lime)}.challenge-box h2{font-size:3.8rem;color:#fff;margin-top:18px}.progress-wrap{max-width:470px;font-size:.82rem}.progress{height:9px;margin-top:10px;background:#2e5143}.progress-bar{background:var(--lime);width:0;transition:.5s}.check-list{position:relative;z-index:1;display:grid;gap:9px}.check-item{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.08);padding:11px 14px;border-radius:12px;cursor:pointer;transition:.25s}.check-item:hover{background:rgba(255,255,255,.13)}.check-item input{accent-color:var(--lime);width:17px;height:17px}.check-item.done{text-decoration:line-through;color:#9fbaad}.reset-btn{position:relative;z-index:1;border:0;background:transparent;color:var(--lime);font-size:.8rem;margin-top:15px}.quote-section{padding:100px 0;background:#f2f8ed}.quote-section>div>i{font-size:2rem;color:#84b558}.quote-section blockquote{font:700 clamp(1.8rem,4vw,3.1rem)/1.3 'Baloo 2';color:var(--dark);margin:18px 0}footer{background:#0c2d21;color:#a9c0b6;padding:70px 0 20px}footer p{margin-top:15px}footer h4{color:#fff;font-size:1.1rem}footer a:not(.navbar-brand){display:block;color:#a9c0b6;margin:9px 0}footer a:hover{color:var(--lime)}.socials{display:flex;gap:10px}.socials a{width:40px;height:40px;border-radius:50%;background:#183d30;display:grid!important;place-items:center;margin:0!important}.copyright{border-top:1px solid #24473a;margin-top:45px;padding-top:20px;text-align:center;font-size:.78rem}.copyright i{color:#ff7668}#backToTop{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border:0;border-radius:14px;background:var(--green);color:#fff;box-shadow:0 8px 20px rgba(23,139,87,.3);opacity:0;visibility:hidden;transition:.3s;z-index:20}#backToTop.show{opacity:1;visibility:visible}.modal-content{border:0;border-radius:25px}.modal-content .btn-close{position:absolute;right:18px;top:18px}.modal-leaf{font-size:3rem;color:var(--green)}.reveal{opacity:0;transform:translateY(35px);transition:opacity .8s ease,transform .8s ease}.reveal.visible{opacity:1;transform:none}.delay-1{transition-delay:.12s}.delay-2{transition-delay:.24s}.delay-3{transition-delay:.36s}@keyframes float{50%{transform:translateY(-16px) rotate(2deg)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes scroll{0%{transform:translateY(0);opacity:1}100%{transform:translateY(14px);opacity:0}}
@media(max-width:991px){.navbar{background:rgba(255,255,255,.96)}.navbar-collapse{padding:15px}.nav-cta{margin:5px 0}.hero{padding-top:70px}.hero .min-vh-100{min-height:auto!important}.earth-card{height:400px}.earth{font-size:11rem}.orbit-1{width:280px;height:280px}.orbit-2{width:350px;height:350px}.action-grid{grid-template-columns:repeat(2,1fr)}.section{padding:85px 0}.challenge-box{padding:40px}.scroll-hint{display:none}}
@media(max-width:575px){.hero h1{font-size:3.1rem}.hero-stats{gap:18px}.earth-card{height:330px}.earth{font-size:9rem}.orbit-1{width:230px;height:230px}.orbit-2{width:290px;height:290px}.mini-note{bottom:10px}.action-grid{grid-template-columns:1fr}.challenge-box{padding:30px 22px}.challenge-box h2{font-size:2.8rem}.bin{font-size:5rem}.section{padding:70px 0}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}

/* Generated illustration enhancements */
.hero-photo-card{width:min(550px,92vw);height:500px;background:#fff;padding:10px;border-radius:38px;transform:rotate(2deg);animation:float 5s ease-in-out infinite;box-shadow:0 28px 65px rgba(18,58,43,.2)}
.hero-photo{width:100%;height:100%;object-fit:cover;border-radius:30px}
.floating-badge{position:absolute;width:55px;height:55px;display:grid;place-items:center;border-radius:18px;background:#fff;color:var(--green);font-size:1.4rem;box-shadow:var(--shadow);animation:float 3.5s ease-in-out infinite}
.badge-recycle{right:-18px;top:45px}.badge-water{left:-20px;top:130px;color:#36a5da;animation-delay:.8s}.hero-photo-card .mini-note{transform:rotate(-2deg);left:-15px}
.story-banner{position:relative;height:470px;margin-top:60px;border-radius:30px;overflow:hidden;box-shadow:var(--shadow)}
.story-banner:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 35%,rgba(9,43,30,.2) 58%,rgba(9,43,30,.88) 100%)}
.story-banner img{width:100%;height:100%;object-fit:cover;transition:transform 1s ease}.story-banner:hover img{transform:scale(1.035)}
.story-caption{position:absolute;z-index:2;right:45px;top:50%;transform:translateY(-50%);width:36%;color:#e8f1ec}
.story-caption>span{display:inline-block;color:var(--lime);font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;margin-bottom:12px}.story-caption h3{color:#fff;font-size:2.25rem;line-height:1.05}.story-caption p{font-size:.9rem;margin:12px 0 0}
.challenge-photo{height:480px;position:relative;border-radius:22px;overflow:hidden;border:6px solid rgba(255,255,255,.12);box-shadow:0 15px 35px rgba(0,0,0,.2)}
.challenge-photo img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}.challenge-photo:hover img{transform:scale(1.05)}
.challenge-photo span{position:absolute;left:16px;right:16px;bottom:16px;padding:11px;border-radius:12px;text-align:center;background:rgba(255,255,255,.92);color:var(--dark);font-weight:700;font-size:.78rem;backdrop-filter:blur(8px)}.challenge-photo span i{color:#e9a400;margin-right:5px}
@media(max-width:991px){.hero-photo-card{height:430px}.story-banner{height:420px}.story-caption{width:48%}.challenge-photo{height:400px;max-width:400px;margin:auto}}
@media(max-width:575px){.hero-photo-card{height:340px}.story-banner{height:520px}.story-banner:after{background:linear-gradient(0deg,rgba(9,43,30,.94) 0%,rgba(9,43,30,.1) 75%)}.story-caption{left:25px;right:25px;bottom:22px;top:auto;transform:none;width:auto}.story-caption h3{font-size:1.8rem}.challenge-photo{height:390px}}

/* 7-day challenge completion */
.challenge-box.is-complete{box-shadow:0 0 0 3px rgba(201,243,106,.5),0 28px 80px rgba(18,58,43,.3)}
.challenge-box.is-complete:before{content:"ĐÃ HOÀN THÀNH";position:absolute;z-index:3;right:-42px;top:28px;width:180px;padding:8px 0;text-align:center;transform:rotate(38deg);background:var(--lime);color:var(--dark);font-size:.63rem;font-weight:800;letter-spacing:1px;box-shadow:0 5px 20px rgba(0,0,0,.2)}
.challenge-box.is-complete .progress-bar{box-shadow:0 0 18px rgba(201,243,106,.8)}
.challenge-box.is-complete .challenge-photo{border-color:rgba(201,243,106,.65)}
body.celebrating{overflow:hidden}
.celebration[hidden]{display:none}.celebration{position:fixed;z-index:2000;inset:0;display:grid;place-items:center;padding:20px;background:rgba(5,27,19,.72);backdrop-filter:blur(10px);opacity:0;transition:opacity .35s ease}.celebration.show{opacity:1}
#confettiCanvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.celebration-card{position:relative;z-index:1;width:min(540px,100%);padding:42px 45px;text-align:center;border-radius:30px;background:linear-gradient(145deg,#fff 0%,#f3fae8 100%);box-shadow:0 35px 100px rgba(0,0,0,.32);transform:translateY(30px) scale(.88);transition:transform .45s cubic-bezier(.2,1.4,.4,1);overflow:hidden}.celebration.show .celebration-card{transform:none}
.celebration-card:before,.celebration-card:after{content:"";position:absolute;border-radius:50%;background:#dff3aa;z-index:-1}.celebration-card:before{width:180px;height:180px;right:-90px;top:-90px}.celebration-card:after{width:110px;height:110px;left:-55px;bottom:-55px}
.celebration-close{position:absolute;right:17px;top:17px;width:36px;height:36px;border:0;border-radius:50%;background:#e5eee3;color:var(--dark)}
.achievement-ring{position:relative;width:105px;height:105px;margin:0 auto 20px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(145deg,#d9ff78,#83be32);color:#fff;font-size:2.7rem;box-shadow:0 12px 30px rgba(103,157,31,.35);animation:achievementPulse 1.8s ease-in-out infinite}
.achievement-ring>span{position:absolute;right:-4px;bottom:3px;width:34px;height:34px;display:grid;place-items:center;border:4px solid #fff;border-radius:50%;background:var(--green);font-size:.8rem}
.celebration-kicker{color:var(--green);font-size:.72rem;font-weight:800;letter-spacing:1.5px;text-transform:uppercase}.celebration-card h2{font-size:3rem;margin:5px 0;color:var(--dark)}.celebration-card>p{font-size:.92rem;margin:0 auto 22px;max-width:430px}
.celebration-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:20px 0 25px}.celebration-stats div{display:flex;flex-direction:column;padding:13px 6px;border-radius:14px;background:#e8f4df}.celebration-stats b{font:800 1.25rem 'Baloo 2';color:var(--green)}.celebration-stats span{font-size:.6rem;font-weight:600}
@keyframes achievementPulse{50%{transform:translateY(-5px) rotate(3deg);box-shadow:0 18px 38px rgba(103,157,31,.48)}}
@media(max-width:575px){.celebration-card{padding:35px 20px}.celebration-card h2{font-size:2.5rem}.celebration-stats span{font-size:.52rem}.achievement-ring{width:90px;height:90px;font-size:2.2rem}}

/* Footer author credit */
.copyright{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:7px}
.footer-separator{color:#547568}
.author-credit{display:inline-flex;align-items:center;gap:6px;padding:6px 11px;border:1px solid rgba(201,243,106,.2);border-radius:50px;background:rgba(201,243,106,.08);color:#dff7aa;font-weight:700;letter-spacing:.15px;transition:.3s ease}
.author-credit i{color:var(--lime)!important}.author-credit:hover{transform:translateY(-2px);border-color:rgba(201,243,106,.45);background:rgba(201,243,106,.14)}
@media(max-width:575px){.copyright{line-height:1.8}.footer-separator{display:none}.author-credit{margin:2px 3px}}

/* Balanced title spacing while keeping the first phrase on one line. */
.hero h1{font-size:clamp(3.1rem,5.4vw,5.3rem);line-height:.95;letter-spacing:-1.4px}
.hero h1 span{display:inline-block}.hero h1 .hero-title-line{color:var(--dark);white-space:nowrap}.hero h1>span:not(.hero-title-line){margin-top:.08em}
@media(max-width:575px){.hero h1{font-size:clamp(2.5rem,12.2vw,2.95rem);line-height:.95;letter-spacing:-.8px}.hero h1>span:not(.hero-title-line){margin-top:.1em}}