:root {
  --primary: #2563EB;
  --accent: #FF7A00;
  --dark: #0F172A;
  --gray: #CBD5E1;
  --light: #F8FAFC;
}

/* GENEL YAPI */
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: var(--dark);
  background-color: white;
  line-height: 1.6;
}

/* ORTA HİZALAMA (TÜM SAYFA GENİŞLİKLERİ İÇİN) */
.container {
  width: min(92%, 1200px);
  margin-inline: auto;
  padding-inline: 1rem;
}

/* HEADER */
.site-header {
  background: white;
  box-shadow: 0 1px 6px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(92%, 1200px);
  margin-inline: auto;
  padding: 12px 0;
}

.logo img {
  height: 40px;
}

.main-nav a {
  color: var(--dark);
  margin-left: 25px;
  text-decoration: none;
  font-weight: 500;
}

.main-nav a:hover {
  color: var(--accent);
}

/* HERO */
/* ==== HERO ANİMASYONLU ARKA PLAN ==== */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 85vh;
  overflow: hidden;
  color: white;
  padding-block: 6rem 4rem;
  background: linear-gradient(-45deg, #0F172A, #1E293B, #FF7A00, #2563EB);
  background-size: 400% 400%;
  animation: gradientShift 18s ease infinite;
}

/* Gradient geçiş animasyonu */
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Network SVG arka plan */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('network.svg');
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0.18;
  z-index: 0;
  transform: translateY(calc(var(--parallax-offset, 0px) * 1));
  will-change: transform;
}



/* Hero içeriği yukarıda kalsın */
.hero .container {
  position: relative;
  z-index: 2;
  text-align: left;
}


.hero .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 1rem;
  color: white;
}

.hero p {
  max-width: 500px;
  color: var(--gray);
  margin-bottom: 1.5rem;
}

.cta .btn {
  margin-right: 1rem;
}

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: 0.2s;
}

.btn.primary {
  background: var(--accent);
  color: white;
}

.btn.primary:hover {
  background: #e96d00;
}

.btn.ghost {
  border: 2px solid var(--accent);
  color: var(--accent);
}

.btn.ghost:hover {
  background: var(--accent);
  color: white;
}

/* ABOUT */
.about {
  padding: 80px 0;
  text-align: center;
}

/* SERVICES */
.services {
  background: var(--light);
  padding: 80px 0;
}

.services .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.services .card {
  background: white;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

/* PROJECTS */
.projects {
  padding: 80px 0;
}

.projects .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.projects .card {
  background: var(--light);
  border-radius: 12px;
  padding: 25px;
}

.projects .btn.small {
  margin-top: 10px;
  background: var(--primary);
  color: white;
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 6px;
}

.projects .btn.small:hover {
  background: var(--accent);
}

/* CONTACT */
.contact {
  background: #F1F5F9;
  padding: 80px 0;
}

.contact form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  max-width: 500px;
}

.contact input,
.contact textarea {
  padding: 10px;
  border: 1px solid #E2E8F0;
  border-radius: 8px;
  font-size: 1rem;
}

.contact button {
  align-self: start;
}

/* FOOTER */
footer {
  background: var(--dark);
  color: var(--gray);
  text-align: center;
  padding: 30px 10px;
  font-size: 0.9rem;
}

footer a {
  color: var(--gray);
  text-decoration: none;
}

footer a:hover {
  color: var(--accent);
}

/* MOBİL */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  .main-nav {
    display: none; /* ileride mobil menü eklenecekse açılabilir */
  }
}

/* === SCROLL ANİMASYONLARI === */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.fade-in.show {
  opacity: 1;
  transform: translateY(0);
}

.slide-up {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.9s ease-out;
}

.slide-up.show {
  opacity: 1;
  transform: translateY(0);
}

.slide-left {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s ease-out;
}

.slide-left.show {
  opacity: 1;
  transform: translateX(0);
}

.slide-right {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s ease-out;
}

.slide-right.show {
  opacity: 1;
  transform: translateX(0);
}