:root{
  --bg:#01050a;
  --white:#f5f7f8;
  --muted:#c7d1d8;
  --red:#ef233c;
  --blue:#2cb8ff;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--white);font-family:Arial,Helvetica,sans-serif}
body{overflow-x:hidden}
a{color:inherit}

/* --- CINEMATIC INTRO --- */
#prIntro{
  position:fixed;
  inset:0;
  z-index:99999;
  background:#000;
  overflow:hidden;
  opacity:1;
  visibility:visible;
  transition:opacity 1.1s ease,visibility 1.1s ease;
}
#prIntro.pr-finished{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
}

.pr-scene{
  position:absolute;
  inset:-4%;
  opacity:0;
  background-position:center;
  background-size:cover;
  background-repeat:no-repeat;
  will-change:transform,opacity,filter;
  transform:scale(1.05);
  filter:saturate(1.04) contrast(1.04);
}
.pr-scene::after{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 50% 48%,transparent 30%,rgba(0,0,0,.18) 66%,rgba(0,0,0,.64) 100%),
    linear-gradient(180deg,rgba(0,0,0,.34),transparent 22%,transparent 72%,rgba(0,0,0,.58));
}

#sceneIss{background-image:url("/assets/iss.jpg")}
#sceneGokturk{background-image:url("/assets/gokturk1.jpg");background-size:cover}
#sceneEarth{background-image:url("/assets/earth-turkey-wide.jpg")}
#sceneTurkey{background-image:url("/assets/turkey-close.jpg")}

.pr-space-overlay{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 78% 13%,rgba(50,153,255,.15),transparent 28%),
    radial-gradient(circle at 20% 16%,rgba(255,255,255,.05),transparent 20%);
  mix-blend-mode:screen;
}

.pr-title{
  position:absolute;z-index:5;left:50%;top:7%;
  transform:translateX(-50%);
  width:min(92vw,1000px);
  text-align:center;
  font-size:clamp(11px,1.15vw,15px);
  letter-spacing:.35em;
  text-transform:uppercase;
  text-shadow:0 0 18px rgba(0,0,0,.85),0 0 18px rgba(52,181,255,.38);
}
.pr-title strong{color:#fff}
.pr-title .red{color:#ff334b}

.pr-stage-label{
  position:absolute;z-index:5;left:50%;bottom:7%;
  transform:translateX(-50%);
  width:min(92vw,1050px);
  text-align:center;
  color:#e5eef4;
  font-size:clamp(10px,1.05vw,14px);
  letter-spacing:.32em;
  text-transform:uppercase;
  text-shadow:0 0 18px rgba(0,0,0,.9);
}

#prSkip{
  position:absolute;z-index:10;right:20px;top:18px;
  padding:9px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.23);
  background:rgba(0,0,0,.35);
  color:#fff;font-size:11px;letter-spacing:.12em;
  cursor:pointer;backdrop-filter:blur(7px);
}

.pr-target{
  position:absolute;z-index:4;
  left:55%;top:58%;
  width:110px;height:110px;
  transform:translate(-50%,-50%) scale(.6);
  opacity:0;
  border:2px solid rgba(255,55,70,.95);
  border-radius:50%;
  box-shadow:0 0 28px rgba(255,55,70,.55),inset 0 0 22px rgba(255,55,70,.18);
}
.pr-target::before,.pr-target::after{
  content:"";position:absolute;left:50%;top:50%;background:rgba(255,255,255,.88);
  transform:translate(-50%,-50%);
}
.pr-target::before{width:150px;height:1px}
.pr-target::after{width:1px;height:150px}
.pr-target span{
  position:absolute;left:125px;top:43px;
  white-space:nowrap;font-weight:700;font-size:12px;letter-spacing:.16em;
  color:#fff;text-shadow:0 0 10px #000;
}

.pr-scan-grid{
  position:absolute;z-index:4;
  left:50%;top:54%;
  width:min(66vw,850px);
  height:min(34vw,430px);
  transform:translate(-50%,-50%) perspective(650px) rotateX(58deg);
  opacity:0;
  border:1px solid rgba(72,211,255,.45);
  background:
    linear-gradient(rgba(74,213,255,.28) 1px,transparent 1px),
    linear-gradient(90deg,rgba(74,213,255,.28) 1px,transparent 1px),
    linear-gradient(90deg,transparent 0 42%,rgba(64,255,174,.36) 47%,rgba(255,222,56,.45) 50%,rgba(255,67,54,.30) 53%,transparent 58%);
  background-size:42px 42px,42px 42px,220% 100%;
  box-shadow:0 0 46px rgba(53,177,255,.28);
  animation:prSweep 2.2s linear infinite;
}
@keyframes prSweep{
  from{background-position:0 0,0 0,100% 0}
  to{background-position:0 0,0 0,-100% 0}
}

#prLogoReveal{
  position:absolute;z-index:7;left:50%;top:50%;
  width:min(82vw,980px);
  transform:translate(-50%,-50%) scale(.78);
  opacity:0;filter:blur(20px);
  pointer-events:none;
}
#prLogoReveal img{display:block;width:100%;height:auto}

.pr-black{
  position:absolute;inset:0;z-index:6;background:#01050a;opacity:0;pointer-events:none;
}

/* --- MAIN SITE AFTER INTRO --- */
.site{
  min-height:100vh;
  background:
    linear-gradient(rgba(1,5,10,.34),rgba(1,5,10,.78)),
    url("/assets/earth-turkey-wide.jpg") center/cover fixed no-repeat;
}
.topbar{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 5vw;
  background:rgba(1,6,12,.68);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.09);
}
.brand img{width:min(320px,52vw);display:block}
nav{display:flex;gap:22px}
nav a{text-decoration:none;font-size:12px;letter-spacing:.12em}
.hero{
  min-height:78vh;display:grid;place-items:center;text-align:center;padding:90px 6vw 60px;
}
.hero-card{
  width:min(940px,94vw);padding:42px 30px;border-radius:26px;
  background:rgba(1,6,12,.50);
  border:1px solid rgba(255,255,255,.13);
  box-shadow:0 20px 70px rgba(0,0,0,.45);
  backdrop-filter:blur(9px);
}
.hero .kicker{color:#ff4157;letter-spacing:.34em;font-size:12px;text-transform:uppercase}
.hero h1{font-size:clamp(48px,8vw,100px);margin:12px 0 8px}
.hero p{max-width:760px;margin:auto;color:#d6e0e6;line-height:1.75;font-size:clamp(15px,1.6vw,20px)}
.features{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;padding:32px 5vw 70px;max-width:1300px;margin:auto}
.feature{padding:24px 18px;border:1px solid rgba(255,255,255,.10);background:rgba(1,6,12,.48);border-radius:18px;text-align:center}
.feature span{font-size:28px}
.feature b{display:block;margin-top:10px;font-size:12px;letter-spacing:.08em}
footer{text-align:center;padding:28px;color:#b1bec7;border-top:1px solid rgba(255,255,255,.08)}

@media(max-width:760px){
  nav{display:none}
  .topbar{justify-content:center}
  .features{grid-template-columns:1fr 1fr}
  .pr-target{left:58%;top:59%;width:74px;height:74px}
  .pr-target::before{width:100px}
  .pr-target::after{height:100px}
  .pr-target span{left:86px;top:28px;font-size:9px}
}
@media(max-width:480px){
  .features{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  #prIntro{display:none}
}