/* =========================
   GENEL AYARLAR
========================= */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  color: #222;
  background-color: #ffffff;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 90px 0;
}

/* =========================
   BUTON
========================= */

.btn-primary {
  display: inline-block;
  margin-top: 24px;
  padding: 14px 32px;
  background: linear-gradient(135deg, #2563eb, #1e40af);
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.35);
}

/* =========================
   BAŞLIKLAR
========================= */

.section-title {
  font-size: 36px;
  text-align: center;
  margin-bottom: 56px;
  color: #111;
}

h1 {
  font-size: 42px;
  line-height: 1.2;
  margin-bottom: 24px;
}

h2 {
  font-size: 32px;
}

h3 {
  font-size: 20px;
}

/* =========================
   HERO / 3D MODEL BÖLÜMÜ
========================= */

.model-text-section {
  background: #f8fafc;
}

.model-text-wrapper {
  display: flex;
  align-items: center;
  gap: 56px;
}

.model-area {
  flex: 1;
  aspect-ratio: 1 / 1;
  background: #ffffff;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
}

.model-area model-viewer {
  width: 100%;
  height: 100%;
}

.text-area {
  flex: 1;
}

.text-area p {
  font-size: 16px;
  line-height: 1.7;
  color: #555;
  margin-bottom: 16px;
}

/* =========================
   HİZMETLER
========================= */

.services-section {
  background: #ffffff;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-box {
  background: #f9fafb;
  padding: 32px;
  border-radius: 20px;
  transition: all 0.3s ease;
}

.service-box:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.service-box h3 {
  margin-bottom: 12px;
  color: #111;
}

.service-box p {
  font-size: 15px;
  line-height: 1.6;
  color: #555;
}

/* =========================
   NEDEN 3D?
========================= */

.why-3d-section {
  background: #f1f5f9;
}

.why-list {
  max-width: 700px;
  margin: 0 auto;
  list-style: none;
  padding: 0;
}

.why-list li {
  background: #ffffff;
  padding: 18px 24px;
  border-radius: 14px;
  margin-bottom: 14px;
  font-size: 16px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

/* =========================
   SEKTÖRLER
========================= */

.sector-section {
  background: #ffffff;
}

.sector-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}

.sector-grid span {
  padding: 24px;
  background: #f8fafc;
  border-radius: 16px;
  font-weight: 500;
  font-size: 16px;
  transition: all 0.3s ease;
}

.sector-grid span:hover {
  background: #2563eb;
  color: #ffffff;
}

/* =========================
   NEDEN BİZ?
========================= */

.why-us-section {
  background: #f8fafc;
}

.why-us-section p {
  max-width: 720px;
  margin: 0 auto 40px;
  text-align: center;
  font-size: 16px;
  line-height: 1.7;
  color: #555;
}

.why-us-list {
  max-width: 700px;
  margin: 0 auto;
  list-style: none;
  padding: 0;
}

.why-us-list li {
  background: #ffffff;
  padding: 18px 24px;
  border-radius: 14px;
  margin-bottom: 14px;
  font-size: 16px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

/* =========================
   CTA
========================= */

.cta-section {
  background: linear-gradient(135deg, #1e40af, #2563eb);
  color: #ffffff;
  text-align: center;
}

.cta-section h2 {
  font-size: 36px;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 17px;
  opacity: 0.9;
  margin-bottom: 24px;
}

/* =========================
   MOBİL UYUMLULUK
========================= */

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sector-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  section {
    padding: 70px 0;
  }

  h1 {
    font-size: 34px;
  }

  .section-title {
    font-size: 30px;
  }

  .model-text-wrapper {
    flex-direction: column;
  }

  .text-area {
    text-align: center;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .sector-grid {
    grid-template-columns: 1fr;
  }
}