* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif, Arial;
}

html, body {
  overflow-x: hidden;
  width: 100%;
  position: relative;
  scroll-behavior: smooth;
}

.no-scroll {
  overflow: hidden;
}

/* SAYFA RENKLERİ */
:root {
  --lacivert: #0a1a2f;
  --lacivert-rgb: 10, 26, 47;
  --acik-mavi: #4da3ff;
  --acik-mavi-rgb: 77, 163, 255;
  --beyaz: #ffffff;
  --beyaz-rgb: 255, 255, 255;
}

body {
  background: var(--lacivert);
  color: var(--beyaz);
}

/* ANIMASYONLAR */
.anim-fade {
  animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* TRANSITIONS */
header,
footer,
.service-card,
.urun-card {
  transition: all 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.service-card {
  background: rgba(255, 255, 255, 0.05);
  padding: 40px 30px;
  border-radius: 20px;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(5px);
  position: relative;
}


.service-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--acik-mavi);
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.3);
}

.service-icon {
  width: 70px;
  height: 70px;
  line-height: 70px;
  background: rgba(77, 163, 255, 0.1);
  border-radius: 50%;
  margin: 0 auto 25px;
  font-size: 2rem;
  color: var(--acik-mavi);
  transition: 0.3s;
  display: block;
}

.service-card:hover .service-icon {
  background: var(--acik-mavi);
  color: white;
  transform: scale(1.1);
}

.service-card h3 {
  font-size: 1.4rem;
  margin-bottom: 15px;
  font-weight: 700;
}

.service-card p {
  opacity: 0.7;
  line-height: 1.6;
  font-size: 0.95rem;
}

.section-title {
  text-align: center;
  margin: 80px 0 50px;
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--acik-mavi), transparent);
  margin: 20px auto 0;
  border-radius: 2px;
}

/* ======================================================
   RESPONSIVE (MOBIL UYUMLULUK)
   ====================================================== */

@media (max-width: 992px) {
  .section-title {
    font-size: 2.2rem;
  }
}

@media (max-width: 768px) {
  .grid-container {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 20px;
  }

  .section-title {
    font-size: 1.8rem;
    margin: 40px 0 30px;
  }

  .container {
    padding: 0 15px;
  }

  .service-card {
    padding: 30px 20px;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.6rem;
  }
}

/* ======================================================
   HERO SLIDER
   ====================================================== */
.hero-slider {
  position: relative;
  height: 600px;
  width: 100%;
  overflow: hidden;
  background: #000;
}

.slides-container {
  position: relative;
  height: 100%;
  width: 100%;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1s ease-in-out, visibility 1s;
  z-index: 1;
}

.slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(10, 26, 47, 0.4), rgba(10, 26, 47, 0.8));
}

.slider-dots {
  display: flex;
  gap: 10px;
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot.active {
  background: var(--acik-mavi);
  transform: scale(1.2);
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.3s ease;
  z-index: 10;
  backdrop-filter: blur(5px);
}

.slider-btn:hover {
  background: var(--acik-mavi);
  color: white;
}

.slider-btn.prev { left: 30px; }
.slider-btn.next { right: 30px; }

@media (max-width: 768px) {
  .hero-slider {
    height: 400px;
  }
  .slider-btn {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  .slider-btn.prev { left: 15px; }
  .slider-btn.next { right: 15px; }
}