* {
  box-sizing: border-box;
}

body {
      margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  color: #eaf1ff;
  background:
    radial-gradient(circle at top, #14224a 0%, #0b142b 60%),
    linear-gradient(180deg, #0b142b, #050a18);
  overflow-x: hidden;
}

/* BACKGROUND */
.bg-grid {
  position: fixed;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(3,1fr);
  grid-template-rows: repeat(3,1fr);
  z-index: -2;
}
.bg-tile {
  background-size: cover;
  background-position: center;
  opacity: .18;
  animation: slowZoom 20s infinite alternate;
}
@keyframes slowZoom {
  from { transform: scale(1); }
  to { transform: scale(1.12); }
}
.bg-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(180deg,rgba(0,0,0,.45),rgba(0,0,0,.75));
  backdrop-filter: blur(2px);
  z-index: -1;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.hero-inner {
  max-width: 900px;
  padding: 40px 20px;
}
.hero h1 {
  font-size: clamp(38px,5vw,64px);
  font-weight: 800;
  line-height: 1.1;
}
.hero h1 span {
  background: linear-gradient(90deg,#00d0ff,#00ff99);
  -webkit-background-clip: text;
  color: transparent;
}
.hero p {
  color: #b7c5ff;
  font-size: 1.15em;
  margin: 20px 0 45px;
}

/* BUTTONS */
.btn-group {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  padding: 14px 30px;
  border-radius: 14px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all .25s ease;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(255,255,255,.25), transparent 60%);
  opacity: 0;
  transition: .3s;
}
.btn:hover::after { opacity: 1; }
.btn:hover { transform: translateY(-4px); }

.btn-primary {
  background: linear-gradient(90deg,#00d0ff,#0040ff);
  box-shadow: 0 10px 30px rgba(0,208,255,.35);
}
.btn-secondary {
  border: 1px solid rgba(22, 25, 54, 0);
  background-color: #00ff99;
}
.btn-video {
  background: linear-gradient(90deg,#ff0033,#ff5a5a);
  box-shadow: 0 10px 30px rgba(255,0,50,.35);
}

/* FEATURES */
.features {
  margin-top: 90px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
}
.feature {
  width: 260px;
  padding: 26px;
  border-radius: 18px;
  background: linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(6px);
  transition: .3s ease;
}
.feature:hover {
  transform: translateY(-8px) scale(1.02);
}
.feature i {
  font-size: 2em;
  color: #00d0ff;
  margin-bottom: 12px;
}

/* HOW IT WORKS */
.how-it-works {
  margin-top: 90px;
  display: flex;
  gap: 30px;
  justify-content: center;
  flex-wrap: wrap;
}
.step {
  width: 240px;
  padding: 24px;
  text-align: center;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 18px;
  backdrop-filter: blur(6px);
  transition: .3s;
}
.step:hover { transform: translateY(-6px); }
.step span {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(90deg,#00d0ff,#00ff99);
  color: #000;
  font-weight: 700;
  margin-bottom: 12px;
}

/* FOOTER */
.main-footer {
  padding: 20px;
  text-align: center;
  color: #8b949e;
  border-top: 1px solid rgba(255,255,255,.08);
}

/* SCROLL */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all .8s ease;
}
.reveal.show {
  opacity: 1;
  transform: translateY(0);
}



.steam-bg {
  position: fixed;
  inset: 0;
  background-image: url("https://upload.wikimedia.org/wikipedia/commons/8/83/Steam_icon_logo.svg");
  background-size: 120px;
  background-repeat: repeat;
  background-position: center;
  opacity: 0.055; /* 🔥 işin sırrı burada */
  filter: blur(0.5px);
  transform: rotate(-12deg) scale(1.2);
  pointer-events: none;
  z-index: -2;
   animation: steamMove 120s linear infinite;
}


@keyframes steamMove {
  from { background-position: 0 0; }
  to { background-position: 1000px 1000px; }
}