/* Ortak taban — her sorun sayfası kendi renklerini :root'ta ezer */
:root{
  --zemin:#ffffff; --yazi:#1c1f1a; --yazi2:#4c534a; --soluk:#8a9187; --cizgi:#e7ebe4;
  --vurgu:#2f7d4f; --vurgu2:#9bd27a; --sorun:#b4472c; --mavi:#2f6fd6;
  --kart:#f6f8f4; --golge:0 24px 60px -28px rgba(20,30,20,.35);
  --baslik:"Fraunces",Georgia,serif; --govde:"Manrope",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body{overflow-x:hidden}
@supports (overflow-x:clip){html,body{overflow-x:clip}}
body{background:var(--zemin);color:var(--yazi);font:17px/1.65 var(--govde)}
img{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:var(--baslik);font-weight:700;letter-spacing:-.02em;line-height:1.06}
.w{max-width:1180px;margin:0 auto;padding:0 28px}
.dar{max-width:760px}

/* üst bar */
.ust{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:14px 26px;pointer-events:none}
.ust>*{pointer-events:auto}
.logo{font:800 .9rem var(--govde);letter-spacing:.14em;text-transform:uppercase;text-decoration:none;color:#fff;text-shadow:0 1px 10px rgba(0,0,0,.4);mix-blend-mode:normal}
.ust{transition:background .3s,box-shadow .3s}
.ust.acik{background:rgba(255,255,255,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 1px 0 rgba(0,0,0,.06)}
.ust.acik .logo{color:var(--yazi);text-shadow:none}
.ust-btn{font:700 .85rem var(--govde);background:#25d366;color:#fff;text-decoration:none;padding:10px 16px;border-radius:999px;box-shadow:0 8px 24px -8px rgba(0,0,0,.4)}

/* sorun → çözüm çubuğu */
.durum{position:fixed;left:0;right:0;top:0;height:4px;z-index:60;background:rgba(0,0,0,.08)}
.durum i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--sorun),#e0a33a 45%,var(--vurgu))}

/* kare dizisi sahnesi */
.seq{position:relative}
.seq-sahne{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;background:#111}
.seq-sahne canvas{position:absolute;inset:0;width:100%;height:100%}
.seq-sahne .karart{position:absolute;inset:0;pointer-events:none}
.adim{position:absolute;left:6vw;bottom:12vh;max-width:min(560px,86vw);color:#fff;opacity:0;transform:translateY(24px);transition:opacity .6s,transform .6s;pointer-events:none}
.adim.on{opacity:1;transform:none}
.adim .et{display:inline-block;font:800 .72rem var(--govde);letter-spacing:.16em;text-transform:uppercase;padding:6px 11px;border-radius:999px;background:rgba(255,255,255,.16);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);margin-bottom:14px}
.adim h1,.adim h2{font-size:clamp(2.1rem,5.4vw,4.4rem);text-shadow:0 4px 30px rgba(0,0,0,.45)}
.adim p{font-size:clamp(1.02rem,1.6vw,1.22rem);margin-top:14px;text-shadow:0 2px 14px rgba(0,0,0,.6);color:rgba(255,255,255,.92)}
.adim.sag{left:auto;right:6vw;text-align:right}
.adim.orta{left:50%;transform:translate(-50%,24px);text-align:center;bottom:auto;top:50%;margin-top:-80px}
.adim.orta.on{transform:translate(-50%,0)}
.kaydir{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);color:#fff;font:600 .78rem var(--govde);letter-spacing:.12em;text-transform:uppercase;opacity:calc(1 - var(--p,0)*8)}
.kaydir::after{content:"";display:block;width:1px;height:38px;background:#fff;margin:8px auto 0;animation:in 1.8s infinite}
@keyframes in{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* bölümler */
.bolum{padding:120px 0}
.etk{font:800 .74rem var(--govde);letter-spacing:.16em;text-transform:uppercase;color:var(--vurgu)}
.bolum h2{font-size:clamp(2rem,4.2vw,3.4rem);margin:12px 0 18px}
.bolum p.giris{font-size:1.15rem;color:var(--yazi2);max-width:680px}
.kaynak{font-size:.78rem;color:var(--soluk);margin-top:22px}
.kaynak a{color:inherit}

/* görünce beliren */
.gor{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.gor.on{opacity:1;transform:none}

/* büyük rakamlar */
.rakamlar{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;margin-top:50px}
.rakam b{display:block;font:700 clamp(2.6rem,5.4vw,4.6rem)/1 var(--baslik);color:var(--sorun);letter-spacing:-.03em}
.rakam span{display:block;margin-top:10px;color:var(--yazi2);font-size:.98rem}

/* belirti kontrol listesi */
.belirtiler{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:40px}
.belirti{display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border:1px solid var(--cizgi);border-radius:14px;cursor:pointer;transition:border-color .2s,background .2s;background:#fff;text-align:left;font:inherit;color:inherit}
.belirti i{flex:0 0 24px;height:24px;border-radius:7px;border:2px solid var(--cizgi);display:grid;place-items:center;transition:.2s;font-style:normal;color:#fff;font-size:.85rem}
.belirti b{display:block;font-size:1rem}
.belirti small{color:var(--yazi2);font-size:.9rem}
.belirti.secili{border-color:var(--sorun);background:color-mix(in srgb,var(--sorun) 6%,#fff)}
.belirti.secili i{background:var(--sorun);border-color:var(--sorun)}
.teshis{margin-top:20px;padding:18px 22px;border-radius:14px;background:var(--kart);font-weight:600;display:none}
.teshis.on{display:block}

/* çubuk grafik */
.grafik{margin-top:40px}
.hb{display:grid;grid-template-columns:170px 1fr 90px;gap:14px;align-items:center;padding:7px 0}
.hb .l{font-size:.92rem;color:var(--yazi2)}
.hb .t,.hb .d,.hb .l,.hb .v{display:block}
.hb .t{height:16px;background:#eef1ec;border-radius:999px;overflow:hidden}
.hb .d{height:100%;width:0;border-radius:999px;transition:width 1.4s cubic-bezier(.2,.7,.2,1)}
.hb .v{font-weight:800;font-size:.95rem;text-align:right}
.on .hb .d{width:var(--w)}

/* doğru/yanlış */
.efsaneler{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
.efsane{perspective:1000px;min-height:230px;cursor:pointer;background:none;border:0;font:inherit;color:inherit;text-align:left}
.efsane .ic{position:relative;width:100%;height:100%;min-height:230px;transition:transform .7s;transform-style:preserve-3d}
.efsane.cevir .ic{transform:rotateY(180deg)}
.efsane .yz{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:18px;padding:24px;display:flex;flex-direction:column;justify-content:space-between}
.efsane .on-y{background:var(--kart);border:1px solid var(--cizgi)}
.efsane .on-y q{font:600 1.15rem/1.35 var(--baslik)}
.efsane .on-y small{color:var(--soluk);font-weight:700;font-size:.8rem}
.efsane .ar-y{background:var(--yazi);color:#fff;transform:rotateY(180deg);font-size:.95rem}
.efsane .ar-y b{font-family:var(--baslik);font-size:1.3rem}

/* SSS */
.sss details{border-bottom:1px solid var(--cizgi)}
.sss summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;font-weight:700;font-size:1.06rem;position:relative}
.sss summary::-webkit-details-marker{display:none}
.sss summary::after{content:"+";position:absolute;right:6px;top:15px;font-size:1.5rem;color:var(--vurgu);transition:transform .3s}
.sss details[open] summary::after{transform:rotate(45deg)}
.sss details p{padding:0 0 20px;color:var(--yazi2)}

/* Bacillus türleri */
.turler{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:40px}
.tur{padding:20px 18px;border-radius:16px;background:#fff;border:1px solid var(--cizgi)}
.tur i{display:block;font:italic 700 1rem var(--baslik);color:var(--mavi)}
.tur span{display:block;font-size:.88rem;color:var(--yazi2);margin-top:8px}
.tur.ana{border-color:var(--mavi);box-shadow:0 0 0 3px color-mix(in srgb,var(--mavi) 14%,transparent)}

/* kapanış */
.kapanis{padding:120px 0 90px;text-align:center}
.kapanis h2{font-size:clamp(2.2rem,4.6vw,3.8rem)}
.kapanis p{max-width:620px;margin:16px auto 0;color:var(--yazi2);font-size:1.12rem}
.btnler{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:16px 26px;border-radius:999px;font-weight:800;text-decoration:none;font-size:1rem}
.btn.wa{background:#25d366;color:#fff}
.btn.ikincil{border:2px solid var(--yazi);color:var(--yazi)}

/* diğer sorunlar */
.digerleri{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}
.diger{position:relative;display:block;border-radius:18px;overflow:hidden;aspect-ratio:4/3;text-decoration:none;color:#fff}
.diger img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s}
.diger:hover img{transform:scale(1.06)}
.diger::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 35%,rgba(0,0,0,.75))}
.diger span{position:absolute;left:18px;right:18px;bottom:16px;z-index:1;font:700 1.25rem/1.15 var(--baslik)}
.diger small{display:block;font:600 .8rem var(--govde);opacity:.85;margin-top:4px}

footer{background:#13180f;color:#cfd6c9;padding:50px 0 36px;font-size:.9rem}
footer .w{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
footer b{color:#fff}
.not-yasal{font-size:.78rem;color:var(--soluk);margin-top:14px}

@media (max-width:760px){
  body{font-size:16px}
  .w{padding:0 18px}
  .bolum{padding:80px 0}
  .rakamlar,.belirtiler,.efsaneler,.digerleri{grid-template-columns:1fr}
  .turler{grid-template-columns:1fr 1fr}
  .hb{grid-template-columns:96px 1fr 64px;gap:10px}
  .adim{left:18px;right:18px;bottom:10vh;max-width:none}
  .adim.sag{right:18px;text-align:left}
  .ust{padding:12px 16px}
}
@media (max-height:720px) and (min-width:761px){
  .adim h1,.adim h2{font-size:clamp(1.8rem,3.6vw,2.9rem)!important}
  .adim p{font-size:1rem;margin-top:10px}
  .adim{bottom:9vh}
  .adim .et{margin-bottom:8px}
  .kaydir{display:none}
}
/* kısa ekranlarda sahne kartları taşmasın */
@media (max-height:820px) and (min-width:761px){
  .seq .adim .mini-rk,.seq .adim .kn{display:none!important}
  .seq .adim p{font-size:.98rem!important;line-height:1.5}
  .seq .adim h1,.seq .adim h2{font-size:clamp(1.6rem,3vw,2.5rem)!important}
  .seq .adim{max-height:calc(100vh - 120px);overflow:hidden}
}
@media (max-height:620px) and (min-width:761px){
  .seq .adim p:not(:first-of-type){display:none}
}
@media (max-height:820px) and (min-width:761px){
  .seq .pin :is(.pk,.kt) > :not(b){display:none!important}
}
@media (prefers-reduced-motion:reduce){.gor{opacity:1;transform:none;transition:none}}