:root{
  --ink:#111827;
  --muted:#4b5563;
  --line:#e5e7eb;
  --bg:#ffffff;
  --soft:#f7f8fa;
  --accent:#0f5257;
  --accent-soft:#e6f0f0;
  --max:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
a{color:var(--accent)}

/* ---------- layout ---------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
section{padding:64px 0}
section.soft{background:var(--soft)}

/* ---------- header ---------- */
header{
  border-bottom:1px solid var(--line);
  position:sticky;top:0;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(8px);z-index:50;
}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{font-weight:700;font-size:17px;letter-spacing:-.2px;text-decoration:none;color:var(--ink)}
.brand span{display:block;font-weight:400;font-size:13px;color:var(--muted);letter-spacing:0}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
nav a{text-decoration:none;color:var(--muted);font-size:15px}
nav a:hover,nav a[aria-current="page"]{color:var(--accent)}

/* ---------- hero ---------- */
.hero{padding:72px 0 56px}
.hero h1{font-size:2.3rem;line-height:1.25;margin:0 0 14px;letter-spacing:-.5px}
.hero p.lead{font-size:1.12rem;color:var(--muted);max-width:60ch;margin:0 0 26px}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--accent);background:var(--accent-soft);padding:5px 12px;border-radius:999px;margin-bottom:18px;
}
.cta{
  display:inline-block;background:var(--accent);color:#fff;text-decoration:none;
  padding:13px 26px;border-radius:8px;font-weight:600;font-size:16px;
}
.cta:hover{opacity:.9}
.cta.ghost{background:transparent;color:var(--accent);border:1px solid var(--accent);margin-left:10px}

/* ---------- content ---------- */
h2{font-size:1.55rem;letter-spacing:-.3px;margin:0 0 18px}
h3{font-size:1.12rem;margin:30px 0 8px}
p{margin:0 0 16px}
.prose{max-width:70ch}
.prose ul{padding-left:20px;margin:0 0 18px}
.prose li{margin-bottom:8px}

/* ---------- cards ---------- */
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{
  border:1px solid var(--line);border-radius:12px;padding:24px;background:#fff;
  text-decoration:none;color:inherit;display:block;transition:border-color .15s;
}
.card:hover{border-color:var(--accent)}
.card h3{margin:0 0 8px;font-size:1.08rem;color:var(--accent)}
.card p{color:var(--muted);font-size:15px;margin:0}

/* ---------- faq ---------- */
details{border-bottom:1px solid var(--line);padding:16px 0}
summary{cursor:pointer;font-weight:600;list-style:none}
summary::-webkit-details-marker{display:none}
summary::before{content:"+ ";color:var(--accent);font-weight:700}
details[open] summary::before{content:"– "}
details p{margin:12px 0 0;color:var(--muted)}

/* ---------- giris ekrani (splash) ---------- */
#splash{
  position:fixed;inset:0;z-index:9999;background:#000;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  overflow:hidden;
  animation:splashOut .9s ease 2.6s forwards;
}
#splash.skip{animation:splashOut .45s ease forwards}
@keyframes splashOut{
  to{opacity:0;visibility:hidden;pointer-events:none;transform:scale(1.04)}
}
#splash .cin-bg{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(ellipse at 30% 60%, rgba(80,160,200,.07) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 40%, rgba(29,158,117,.06) 0%, transparent 50%);
}
#splash .cin-vignette{
  position:absolute;inset:0;pointer-events:none;z-index:1;
  background:radial-gradient(circle at center,transparent 10%,rgba(0,0,0,.45) 22%,rgba(0,0,0,.85) 36%,#000 52%);
}
#splash .heart-wrap{
  position:relative;width:min(74vw,380px);z-index:2;
  animation:cinFloat 5s ease-in-out infinite;
  filter:drop-shadow(0 20px 60px rgba(100,180,220,.15));
}
@keyframes cinFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
#splash .heart-img{
  width:100%;height:auto;display:block;
  animation:heartbeat 1.4s cubic-bezier(.4,0,.2,1) infinite;
  transform-origin:50% 50%;
  filter:drop-shadow(0 0 22px rgba(29,158,117,.35)) brightness(1.12);
  -webkit-mask-image:radial-gradient(ellipse 78% 74% at 50% 50%, #000 32%, transparent 84%);
  mask-image:radial-gradient(ellipse 78% 74% at 50% 50%, #000 32%, transparent 84%);
}
@keyframes heartbeat{
  0%  {transform:scale(1);   filter:drop-shadow(0 0 22px rgba(29,158,117,.35)) brightness(1.12)}
  3%  {transform:scale(1.04);filter:drop-shadow(0 0 30px rgba(29,158,117,.55)) brightness(1.18)}
  8%  {transform:scale(.94); filter:drop-shadow(0 0 34px rgba(0,200,255,.45)) brightness(1.15)}
  14% {transform:scale(.92); filter:drop-shadow(0 0 38px rgba(0,200,255,.5)) brightness(1.15)}
  22% {transform:scale(1.02);filter:drop-shadow(0 0 24px rgba(29,158,117,.4)) brightness(1.14)}
  30%,100%{transform:scale(1);filter:drop-shadow(0 0 22px rgba(29,158,117,.35)) brightness(1.12)}
}
#splash .ring{
  position:absolute;inset:-24px;border-radius:50%;pointer-events:none;
  box-shadow:0 0 30px 8px rgba(29,158,117,.05);
  animation:cinRing 3s ease-in-out infinite;
}
#splash .ring:nth-of-type(2){inset:-42px;animation-delay:1s}
#splash .ring:nth-of-type(3){inset:-60px;animation-delay:2s}
@keyframes cinRing{
  0%,100%{opacity:.2;transform:scale(.92)}
  50%    {opacity:.5;transform:scale(1.08)}
}
#splash .cin-text{
  position:relative;z-index:3;margin-top:26px;text-align:center;
  opacity:0;animation:cinTextIn .9s ease .5s forwards;
}
#splash .cin-label{
  font-family:var(--mono,ui-monospace,Menlo,monospace);
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:rgba(29,158,117,.9);text-shadow:0 0 18px rgba(29,158,117,.45);
}
#splash .cin-name{
  margin-top:8px;color:#e6edf3;font-size:19px;font-weight:600;letter-spacing:.01em;
}
@keyframes cinTextIn{to{opacity:1}}
#splash .cin-skip{
  position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:4;
  background:none;border:0;cursor:pointer;padding:8px 14px;
  font-family:var(--mono,ui-monospace,Menlo,monospace);font-size:11px;letter-spacing:.18em;
  color:rgba(230,237,243,.45);text-transform:uppercase;
}
#splash .cin-skip:hover{color:rgba(230,237,243,.85)}
html.splash-on,html.splash-on body{overflow:hidden}

/* Hareketi azalt: ekran yine gosterilir, sadece hareket durur */
@media (prefers-reduced-motion:reduce){
  #splash{animation:splashOut .6s ease 1.8s forwards}
  #splash .heart-wrap,
  #splash .heart-img,
  #splash .ring{animation:none}
  #splash .ring{opacity:.3}
  #splash .cin-text{opacity:1;animation:none}
}
#splash.static{animation:splashOut .6s ease 1.8s forwards}
#splash.static .heart-wrap,
#splash.static .heart-img,
#splash.static .ring{animation:none}
#splash.static .ring{opacity:.3}
#splash.static .cin-text{opacity:1;animation:none}

/* ---------- tibbi cizimler ---------- */
figure.med{margin:30px 0 34px;padding:0}
figure.med svg{width:100%;height:auto;display:block}
figure.med .figbox{
  border:1px solid var(--line);border-radius:14px;background:#fff;padding:22px 20px 18px;
}
figure.med figcaption{
  margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.6;
}
figure.med figcaption b{color:var(--ink);font-weight:600}
.svg-lbl{font:600 13px -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;fill:#111827}
.svg-sub{font:400 11.5px -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;fill:#4b5563}
.svg-tag{font:600 11px -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;fill:#0f5257;letter-spacing:.04em}

/* ---------- press list ---------- */
ul.press{list-style:none;padding:0;margin:22px 0 0}
ul.press li{
  border-top:1px solid var(--line);padding:16px 0;margin:0;
  display:flex;justify-content:space-between;gap:18px;align-items:baseline;flex-wrap:wrap;
}
ul.press li:last-child{border-bottom:1px solid var(--line)}
ul.press a{text-decoration:none;font-weight:600;flex:1 1 60%}
ul.press a:hover{text-decoration:underline}
ul.press span{color:var(--muted);font-size:14px;white-space:nowrap}

/* ---------- info box ---------- */
.note{
  border-left:3px solid var(--accent);background:var(--soft);
  padding:18px 20px;border-radius:0 8px 8px 0;color:var(--muted);font-size:15px;margin:26px 0;
}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:14px}
footer a{color:var(--muted)}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}

@media(max-width:640px){
  .hero h1{font-size:1.85rem}
  body{font-size:16px}
  section{padding:48px 0}
  .hero{padding:44px 0 40px}
  .bar{flex-direction:column;align-items:flex-start;gap:8px}
  nav ul{gap:14px}
  nav a{font-size:14px}
  .cta{display:block;width:100%;text-align:center}
  .cta.ghost{margin-left:0;margin-top:10px}
}