:root{--red:#E8452C;--sun:#F26B3A;--orange:#FFB27A;--cream:#FFF3E6;--pink:#FF9EB5;--blue:#5BB8E8;--brown:#6B3F2A;--ink:#3b2216;--r:22px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Nunito',system-ui,sans-serif;font-size:1.05rem;line-height:1.65;color:var(--ink);background:var(--cream)}
h1,h2,h3,h4,h5,.btn,.letter,.stat-num{font-family:'Baloo 2','Nunito',sans-serif;line-height:1.15}
a{color:inherit}
:focus-visible{outline:4px solid var(--blue);outline-offset:3px}

/* INTRO */
.intro{min-height:100vh;display:grid;place-items:center;padding:24px;position:relative;overflow:hidden;background:linear-gradient(180deg,#FFD07A 0%,#FF9A5C 40%,#E8452C 100%)}
.intro::after{content:"";position:absolute;bottom:-90px;left:50%;width:420px;height:420px;margin-left:-210px;border-radius:50%;background:#FFE29A;opacity:.55}
.intro-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:center;max-width:900px}
.yureka{animation:bob 2.4s ease-in-out infinite}
.arm-wave{transform-origin:150px 138px;animation:wave 1s ease-in-out infinite}
.blink{transform-origin:110px 80px;animation:blink 4s infinite}
.bubble{background:#fff;border:4px solid var(--brown);border-radius:var(--r);padding:22px 24px;max-width:430px;flex:1 1 300px;position:relative;box-shadow:8px 8px 0 var(--brown)}
.typed{font-family:'Baloo 2';font-size:1.5rem;font-weight:700;margin:0 0 8px;min-height:2.4em}
.typed::after{content:"|";animation:blinkc .8s infinite}
.typed.done::after{content:""}
.idform label{display:block;font-weight:800;margin:10px 0}
.idform input{display:block;width:100%;margin-top:4px;padding:10px 12px;font:inherit;border:3px solid var(--brown);border-radius:14px;background:var(--cream)}
.btnrow{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.btn{display:inline-block;border:3px solid var(--brown);background:#C42B14;color:#fff!important;text-shadow:0 2px 0 rgba(0,0,0,.35);font-size:1.1rem;font-weight:700;padding:10px 20px;border-radius:999px;cursor:pointer;text-decoration:none;box-shadow:0 5px 0 var(--brown);transition:transform .1s,box-shadow .1s}
.btn:hover{background:#9E1F0C}.game .btn:hover{background:#FFE283}.btn:active{transform:translateY(4px);box-shadow:0 1px 0 var(--brown)}
.btn.ghost{background:#fff;color:var(--brown)!important;text-shadow:none}
.btn.big{font-size:1.3rem;padding:12px 28px;margin-top:8px}
.greet{font-size:1.15rem;font-weight:800}
.bact{position:absolute;width:60px;height:60px;border-radius:50%;background:var(--red);border:4px solid var(--brown);opacity:.5;animation:float 7s ease-in-out infinite}
.b1{top:10%;left:6%}.b2{top:70%;right:8%;width:90px;height:90px;background:var(--pink);animation-delay:-2s}.b3{top:20%;right:20%;width:40px;height:40px;animation-delay:-4s}

/* HERO + NAV */
.hero{text-align:center;padding:48px 20px 28px;background:var(--brown);color:#fff}
.hero h1{font-size:clamp(2.8rem,9vw,5rem);margin:0;font-weight:800;letter-spacing:.02em}
.hero h1 span{display:block;font-size:.42em;letter-spacing:0;color:var(--orange);margin-top:8px}
.hero .sub{font-size:1.2rem;margin:12px 0 0;color:#fff}
.nav{position:sticky;top:0;z-index:20;display:flex;justify-content:center;gap:8px;flex-wrap:wrap;padding:10px;background:var(--cream);border-bottom:4px solid var(--brown)}
.nav a{font-family:'Baloo 2';font-weight:700;text-decoration:none;padding:6px 16px;border-radius:999px;background:var(--orange);border:3px solid var(--brown)}
.nav a:hover{background:var(--pink)}

/* SECTIONS */
.sec{padding:56px 18px;max-width:980px;margin:0 auto}
.sec.alt{max-width:none;background:linear-gradient(180deg,#FFE3CC,#FFD2B8)}
.sec.alt>*{max-width:980px;margin-left:auto;margin-right:auto}
.sec-title{font-size:clamp(1.7rem,4.5vw,2.6rem);margin:0 0 24px;color:var(--red)}
.tag{display:inline-block;font-size:1rem;background:var(--blue);color:var(--ink);border:3px solid var(--brown);border-radius:999px;padding:2px 14px;margin-right:6px;vertical-align:middle}
.lead{font-size:1.15rem;margin-top:-10px}
.card{background:#fff;border:4px solid var(--brown);border-radius:var(--r);padding:24px;margin-bottom:28px;box-shadow:8px 8px 0 var(--brown)}
.card:nth-of-type(even){transform:rotate(-.4deg)}
.card h3{font-size:1.6rem;margin:0 0 10px;color:var(--sun)}
.card h4{font-size:1.2rem;margin:18px 0 8px}
.card p{max-width:70ch}
.key{background:#FFE9A8;border:3px dashed var(--brown);border-radius:16px;padding:12px 16px}
.note{font-size:.95rem;color:#7a4a35}

/* definisi */
.bacteria-demo{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin:16px 0}
.bx{text-align:center;background:var(--cream);border:3px solid var(--brown);border-radius:18px;padding:12px 16px}
.bx small{display:block}
.arrow{font-size:2rem;color:var(--red)}
.bx:last-child svg{animation:shake 1.6s infinite}

/* epidemiologi */
.epi-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center}
.lungwrap{position:relative;max-width:280px;margin:auto}
.lung{width:100%}
.breathe{transform-origin:110px 130px;animation:breathe 3.2s ease-in-out infinite}
.mini{position:absolute;font-size:1.8rem;animation:float 5s ease-in-out infinite}
.m1{top:6%;left:-4%}.m2{bottom:8%;right:-2%;animation-delay:-2s}.m3{top:30%;right:-8%;animation-delay:-3s}
.statbox{text-align:center}
.stat-num{font-family:"Baloo 2",sans-serif;font-weight:800;line-height:1;font-size:clamp(3.5rem,10vw,5.5rem);font-weight:800;color:var(--red);margin:0;text-shadow:4px 4px 0 var(--pink)}
.statbox p{margin:6px auto}
.rank{display:inline-block;background:var(--blue);color:var(--ink);font-weight:800;border:3px solid var(--brown);border-radius:999px;padding:2px 16px}
.dots{display:grid;grid-template-columns:repeat(20,1fr);gap:5px;max-width:520px;margin:8px 0 14px}
.dots i{aspect-ratio:1;border-radius:50%;background:#EAD6C6;transition:background .3s,transform .3s}
.dots i.hot{background:var(--red);transform:scale(1.15)}

/* gejala */
.checks{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:10px}
.checks label{display:flex;gap:10px;align-items:center;padding:10px 12px;border:3px solid var(--brown);border-radius:14px;background:var(--cream);cursor:pointer;font-weight:700}
.checks input{width:22px;height:22px;accent-color:var(--red)}
.checks label:has(input:checked){background:var(--pink)}
.hasil{margin-top:14px;padding:14px 16px;border-radius:16px;border:3px solid var(--brown);background:#E8F4FB;font-weight:800}
.hasil.warn{background:#FFD0C2}
.steps{padding-left:0;list-style:none;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding:10px 12px 10px 58px;margin-bottom:10px;background:var(--cream);border-radius:16px;border:3px solid var(--brown)}
.steps li::before{content:counter(s);position:absolute;left:10px;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:50%;background:var(--red);color:#fff;font-family:'Baloo 2';font-weight:800;display:grid;place-items:center;border:3px solid var(--brown)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips span{background:var(--pink);border:3px solid var(--brown);border-radius:999px;padding:4px 14px;font-weight:700;font-size:.95rem}

/* lama */
#bulan{width:100%;accent-color:var(--red);height:30px}
.track{position:relative;height:34px;background:var(--cream);border:3px solid var(--brown);border-radius:999px;margin:10px 0}
.fill{height:100%;width:30%;background:repeating-linear-gradient(45deg,var(--sun),var(--sun) 12px,var(--orange) 12px,var(--orange) 24px);border-radius:999px;transition:width .2s}
.walker{position:absolute;top:-14px;font-size:2rem;transform:translateX(-50%);transition:left .2s}
.bulantxt{font-weight:800;font-size:1.15rem}
.flips{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.flip{position:relative;min-height:150px;padding:0;border:4px solid var(--brown);border-radius:20px;background:var(--pink);font:inherit;color:var(--ink);cursor:pointer;box-shadow:5px 5px 0 var(--brown)}
.flip span{position:absolute;inset:0;display:grid;place-content:center;padding:14px;text-align:center;font-weight:800;border-radius:16px}
.flip small{font-weight:600;display:block}
.f-back{background:#1E6A96;color:#fff;opacity:0;transform:scale(.92);transition:.25s;font-weight:700!important}
.flip.on .f-back{opacity:1;transform:none}

/* temani */
.temani{display:grid;gap:12px;margin-bottom:30px}
.tcard{border:4px solid var(--brown);border-radius:20px;background:#fff;overflow:hidden;box-shadow:6px 6px 0 var(--brown)}
.thead{display:flex;gap:14px;align-items:center;width:100%;border:0;background:none;padding:12px 16px;text-align:left;font:inherit;color:inherit;cursor:pointer}
.thead small{display:block;font-size:.95rem}
.letter{width:58px;height:58px;flex:none;border-radius:50%;display:grid;place-items:center;font-size:2rem;font-weight:800;color:#fff;border:4px solid var(--brown);background:var(--c,var(--red));transition:transform .25s}
.tcard.open .letter{transform:rotate(-10deg) scale(1.1)}
.tbody{display:none;padding:0 18px 16px 18px;border-top:3px dashed var(--brown);margin-top:2px}
.tcard.open .tbody{display:block}
.tip{background:#FFE9A8;padding:8px 12px;border-radius:12px}
.game{text-align:center;background:#1E6A96;color:#fff}
.game h3{color:#fff}.game p{margin-inline:auto}
.game .btn{background:#FFD54A;color:var(--ink)!important;text-shadow:none}

footer{background:var(--brown);color:#fff;padding:28px 20px;text-align:center;font-size:.95rem}
footer p{max-width:70ch;margin:6px auto}

/* anim */
@keyframes bob{50%{transform:translateY(-12px)}}
@keyframes wave{50%{transform:rotate(-16deg)}}
@keyframes blink{0%,94%,100%{transform:scaleY(1)}97%{transform:scaleY(.1)}}
@keyframes blinkc{50%{opacity:0}}
@keyframes float{50%{transform:translateY(-22px) rotate(12deg)}}
@keyframes breathe{50%{transform:scale(1.07)}}
@keyframes shake{0%,90%,100%{transform:rotate(0)}93%{transform:rotate(-8deg)}96%{transform:rotate(8deg)}}

@media(max-width:700px){.epi-grid{grid-template-columns:1fr}.card{padding:18px}.card:nth-of-type(even){transform:none}.yureka svg{width:150px;height:auto}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}}

/* TEMANI detail */
[hidden]{display:none!important}
.tick{stroke-dasharray:20;animation:tick 4s infinite}
@keyframes tick{0%{stroke-dashoffset:20}10%,90%{stroke-dashoffset:0}100%{stroke-dashoffset:20}}
.pick{font-weight:800;margin:14px 0 6px}
.subchips{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 12px}
.chip{font:inherit;font-weight:800;font-size:.95rem;border:3px solid var(--brown);background:var(--cream);color:var(--ink);border-radius:999px;padding:5px 14px;cursor:pointer}
.chip.on{background:var(--ink);color:#fff}
.panel{background:var(--cream);border:3px solid var(--brown);border-radius:16px;padding:4px 18px 14px}
.panel h4{margin:12px 0 6px;font-size:1.25rem}
.panel ul{margin:0;padding-left:1.2em}.panel li{margin:4px 0}
.tip.warn{background:#FFD0C2;margin:10px 0 0}
.vis{display:flex;height:34px;border-radius:10px;overflow:hidden;margin:10px 0 4px;border:2px solid var(--brown)}.vis i{flex:1}
.tl{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:12px 0}
.tl>div{border:3px solid var(--brown);border-radius:14px;overflow:hidden}
.tl h5{margin:0;padding:8px 12px;font-size:1.05rem}
.tl h5 small{display:block;font-family:'Nunito',sans-serif;font-weight:700;font-size:.85rem;line-height:1.3}
.tl ul{margin:0;padding:8px 10px 10px 26px;font-size:.92rem;line-height:1.45}
.tl .g{background:#D6EFDB}.tl .g h5{background:#1F7A44;color:#fff}
.tl .y{background:#FFF6B8}.tl .y h5{background:#FFE04D;color:var(--ink)}
.tl .r{background:#F9D5CB}.tl .r h5{background:#B82410;color:#fff}
@media(max-width:760px){.tl{grid-template-columns:1fr}}
.lede{font-weight:800;background:#FFE9A8;border-radius:12px;padding:8px 14px;margin:14px 0 0}