:root {
  --bg-color: #ffffff;
  --bg-darker: #f8fafc;
  --text-color: #0f172a;
  --text-muted: #475569;
  --primary: #2563eb;
  --secondary: #7c3aed;
  --accent: #0891b2;
  --border: rgba(0, 0, 0, 0.1);
  --font-main: "Outfit", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
}
a {
  text-decoration: none;
  color: inherit;
  transition: 0.3s;
}
ul {
  list-style: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.section-padding {
  padding: 100px 0;
}
.bg-darker {
  background-color: var(--bg-darker);
}
.gradient-text {
  background: linear-gradient(45deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn-primary,
.btn-secondary {
  padding: 12px 30px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-block;
  border: none;
}
.btn-primary {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 30px rgba(37, 99, 235, 0.4);
}
.btn-secondary {
  background: transparent;
  border: 1px solid var(--text-color);
  color: var(--text-color);
  margin-left: 15px;
}
.btn-secondary:hover {
  background: rgba(15, 23, 42, 0.05);
}

.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 15px 0;
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border) !important;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05) !important;
}
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-color);
}
.logo-icon {
  height: 45px;
  width: 45px;
  transition: 0.6s;
}
.logo:hover .logo-icon {
  transform: rotate(120deg);
}
.logo .highlight {
  color: var(--primary);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}
.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
}
.nav-links a:hover {
  color: var(--primary);
}

.lang-switcher {
  display: flex;
  gap: 5px;
  border-left: 1px solid var(--border);
  padding-left: 15px;
  margin-left: 5px;
}
.lang-btn {
  background: none;
  border: none;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 4px;
  font-family: inherit;
}
.lang-btn.active {
  color: var(--primary);
  background: rgba(37, 99, 235, 0.1);
}

.hamburger {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-bg-blob {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(37, 99, 235, 0.1) 0%,
    transparent 70%
  );
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: -1;
}
.hero h1 {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 20px;
  font-weight: 800;
}
.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 40px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.section-subtitle {
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.9rem;
  margin-bottom: 10px;
}
.section-title {
  font-size: 2.5rem;
  margin-bottom: 20px;
}
.about-text p {
  margin-bottom: 20px;
  color: var(--text-muted);
}
.stats-row {
  display: flex;
  gap: 30px;
  margin-top: 30px;
  border-top: 1px solid var(--border);
  padding-top: 30px;
}
.stat-item h3 {
  font-size: 1.8rem;
  color: var(--accent);
}
.image-card {
  width: 100%;
  height: 350px;
  background: #f1f5f9;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.abstract-visual {
  width: 180px;
  height: 180px;
  background: linear-gradient(45deg, var(--primary), var(--secondary));
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  animation: morph 6s infinite ease-in-out;
}
@keyframes morph {
  0%,
  100% {
    border-radius: 30% 70% 70% 30%;
  }
  50% {
    border-radius: 70% 30% 30% 70%;
    transform: rotate(180deg);
  }
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}
.service-card {
  background: white;
  border: 1px solid var(--border);
  padding: 40px;
  border-radius: 15px;
  transition: 0.4s;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}
.service-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
}
.icon-box {
  font-size: 2.5rem;
  color: var(--secondary);
  margin-bottom: 20px;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}
.timeline-item {
  display: flex;
  gap: 30px;
  margin-bottom: 40px;
}
.step-number {
  font-size: 3rem;
  font-weight: 800;
  color: rgba(0, 0, 0, 0.05);
  -webkit-text-stroke: 1px var(--primary);
  line-height: 1;
}

.contact-form {
  background: white;
  padding: 40px;
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
}
.full-width {
  width: 100%;
}

footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-darker);
  text-align: center;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-links {
  display: flex;
  gap: 20px;
}

.hidden {
  opacity: 0;
  transform: translateY(30px);
  transition: 1s;
}
.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.8rem;
  }
  .hamburger {
    display: block;
  }
  .nav-links {
    position: fixed;
    top: 75px;
    right: -100%;
    width: 100%;
    height: calc(100vh - 75px);
    background: white !important;
    flex-direction: column;
    justify-content: center;
    transition: 0.4s;
  }
  .nav-links.active {
    right: 0;
  }
  .lang-switcher {
    border: none;
    margin: 20px 0 0 0;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .footer-content {
    flex-direction: column;
    gap: 20px;
  }
  .btn-secondary {
    margin: 10px 0 0 0;
  }
}

/* --- EKLEDİĞİM CUSTOM ALERT STİLLERİ --- */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
}
.custom-toast {
  background: white;
  color: var(--text-color);
  padding: 15px 25px;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  margin-bottom: 10px;
  border-left: 5px solid var(--primary);
  font-weight: 600;
  transform: translateX(120%);
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.custom-toast.show {
  transform: translateX(0);
}
.custom-toast.success {
  border-left-color: #10b981;
}
.custom-toast.error {
  border-left-color: #ef4444;
}