html {
  box-sizing: border-box;
  font-size: 16px;
}
*, *:before, *:after {
  box-sizing: inherit;
}
body {
  font-family: 'Segoe UI', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f7fafd;
  color: #222;
  line-height: 1.6;
}

header.hero {
  background: linear-gradient(90deg, #e3f0ff 60%, #f7fafd 100%);
  padding: 24px 0 12px 0;
  box-shadow: 0 2px 12px rgba(30,60,120,0.07);
}
.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 100vw;
  margin: 0 auto;
  gap: 18px;
  padding: 0 4vw;
}
.hero-text h1 {
  font-size: 1.5rem;
  background: linear-gradient(90deg, #1a4e8a 60%, #2566b0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
  margin-bottom: 10px;
  font-weight: 800;
  letter-spacing: 0.5px;
}
.hero-text .subtitle {
  font-size: 1.1rem;
  color: #2566b0;
  font-weight: 600;
  margin-bottom: 6px;
}
.hero-text p {
  font-size: 1rem;
  margin: 4px 0;
}
.hero-image {
  width: 100%;
  display: flex;
  justify-content: center;
}
.hero-image img {
  max-width: 220px;
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(30,60,120,0.10);
  border: 2px solid #e3f0ff;
}

.features {
  display: flex;
  flex-direction: column;
  gap: 18px;
  justify-content: center;
  margin: 32px auto 0 auto;
  max-width: 98vw;
  padding: 0 4vw;
}
.feature-card {
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 2px 10px rgba(30,60,120,0.07);
  padding: 22px 18px 18px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(30,60,120,0.12);
}
.feature-icon {
  font-size: 2rem;
  margin-bottom: 8px;
}
.feature-card h2 {
  font-size: 1.1rem;
  color: #1a4e8a;
  margin-bottom: 8px;
  font-weight: 700;
}
.feature-card ul, .feature-card ol {
  margin: 0 0 0 14px;
  padding: 0;
  font-size: 0.98rem;
}

.pozisyon {
  max-width: 98vw;
  margin: 32px auto 0 auto;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 2px 10px rgba(30,60,120,0.07);
  padding: 22px 4vw;
}
.pozisyon-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 10px;
}
.pozisyon-img {
  width: 100%;
  max-width: 180px;
  height: auto;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(30,60,120,0.08);
}
.pozisyon-header h2 {
  font-size: 1.1rem;
  color: #1a4e8a;
  margin: 0 0 4px 0;
  font-weight: 800;
}
.pozisyon-sub {
  color: #2566b0;
  font-weight: 600;
  margin-bottom: 2px;
}
.pozisyon-title {
  font-size: 1rem;
  color: #1a4e8a;
  font-weight: 600;
}
.pozisyon-content {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 10px;
}
.pozisyon-box {
  background: #f7fafd;
  border-radius: 10px;
  box-shadow: 0 1px 6px rgba(30,60,120,0.04);
  padding: 14px 12px;
  margin-bottom: 6px;
}
.pozisyon-box h3 {
  color: #2566b0;
  font-size: 1rem;
  margin-top: 0;
  margin-bottom: 6px;
  font-weight: 700;
}
.pozisyon-box ul {
  margin: 0 0 0 12px;
  padding: 0;
  font-size: 0.98rem;
}

.is-tanimi {
  max-width: 98vw;
  margin: 32px auto 0 auto;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 2px 10px rgba(30,2,120,0.07);
  padding: 22px 4vw;
}
.is-tanimi-content {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.is-tanimi-image {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}
.is-tanimi-image img {
  max-width: 160px;
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(30,60,120,0.10);
  border: 2px solid #e3f0ff;
}
.is-tanimi-text h2 {
  color: #1a4e8a;
  font-size: 1.1rem;
  font-weight: 800;
  margin-top: 0;
}
.is-tanimi-text h3 {
  color: #2566b0;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.is-tanimi-text ul {
  margin: 0 0 8px 14px;
  padding: 0;
  font-size: 0.98rem;
}

.basvuru-formu {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
  background: linear-gradient(120deg, #e3f0ff 70%, #f7fafd 100%);
  padding: 48px 0 0 0;
}
.form-card {
  background: linear-gradient(120deg, #fafdff 80%, #e3f0ff 100%);
  border-radius: 22px;
  box-shadow: 0 8px 32px rgba(26, 78, 138, 0.13);
  padding: 48px 7vw 40px 7vw;
  max-width: 480px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1.5px solid #e3f0ff;
  position: relative;
}
.form-card h2 {
  color: #1a4e8a;
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 8px;
  text-align: center;
  display: flex;
  align-items: center;
  gap: 10px;
}
.form-card h2::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 28px;
  background: url('data:image/svg+xml;utf8,<svg fill="%231a4e8a" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><circle cx="12" cy="12" r="10" fill="%23e3f0ff"/><path d="M12 7a2 2 0 1 1 0 4 2 2 0 0 1 0-4zm0 6c-2.21 0-4 1.12-4 2.5V17h8v-1.5c0-1.38-1.79-2.5-4-2.5z"/></svg>') no-repeat center/contain;
}
.form-desc {
  color: #2566b0;
  font-size: 1.05rem;
  margin-bottom: 28px;
  text-align: center;
  line-height: 1.5;
}
.form-group {
  width: 100%;
  margin-bottom: 22px;
  display: flex;
  flex-direction: column;
}
.form-group label {
  font-weight: 500;
  margin-bottom: 8px;
  color: #1a4e8a;
  font-size: 1.05rem;
  display: block;
}
.form-group input[type="text"],
.form-group input[type="date"],
.form-group input[type="tel"],
.form-group select {
  padding: 15px 16px;
  border: 1.5px solid #bcd0ee;
  border-radius: 10px;
  font-size: 1.08rem;
  margin-top: 0;
  transition: all 0.2s;
  box-shadow: 0 2px 12px rgba(26, 78, 138, 0.06);
  background: #f7fafd;
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: #1a4e8a;
  box-shadow: 0 0 0 3px rgba(26, 78, 138, 0.13);
}
.form-group .input-hint {
  color: #b00;
  font-size: 0.92rem;
  margin-top: 4px;
  margin-left: 2px;
  font-weight: 400;
  letter-spacing: 0.01em;
}
.form-card .btn {
  margin: 28px 0 0 0;
  width: 100%;
  max-width: 320px;
  font-size: 1.1rem;
  padding: 16px 0;
  border-radius: 10px;
}

/* Buton yeniden tasarımı */
.btn {
  display: inline-block;
  background: linear-gradient(90deg, #1a4e8a 60%, #2566b0 100%);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  margin-top: 12px;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  letter-spacing: 0.03em;
  box-shadow: 0 2px 8px rgba(26, 78, 138, 0.2);
  text-align: center;
  position: relative;
  overflow: hidden;
  min-width: 180px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(26, 78, 138, 0.3);
  background: linear-gradient(90deg, #2566b0 60%, #1a4e8a 100%);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(26, 78, 138, 0.2);
}

.pozisyon-box .btn {
  margin: 18px 0 0 0;
  width: 100%;
  max-width: 250px;
}

@media (max-width: 700px) {
  .btn {
    font-size: 0.98rem;
    padding: 10px 20px;
    min-width: 150px;
  }
  .form-card {
    padding: 28px 4vw 18px 4vw;
    max-width: 98vw;
    border-radius: 14px;
  }
  .form-card h2 {
    font-size: 1.15rem;
  }
  .form-group input[type="text"],
  .form-group input[type="date"],
  .form-group input[type="tel"],
  .form-group select {
    font-size: 1rem;
    padding: 13px 10px;
  }
  .form-card .btn {
    font-size: 1rem;
    padding: 13px 0;
    border-radius: 8px;
  }
}
@media (min-width: 1000px) {
  .form-card {
    max-width: 520px;
    padding: 56px 56px 48px 56px;
  }
  .form-card h2 {
    font-size: 1.7rem;
  }
  .form-desc {
    font-size: 1.13rem;
  }
}

footer {
  text-align: center;
  padding: 18px 0 8px 0;
  color: #888;
  font-size: 0.98rem;
  background: #f7fafd;
  margin-top: 24px;
}

/* Masaüstü için responsive tasarım */
@media (min-width: 700px) {
  .hero-content {
    flex-direction: row;
    align-items: center;
    max-width: 1100px;
    gap: 32px;
    padding: 0 32px;
  }
  
  .hero-text h1 {
    font-size: 2.2rem;
  }
  
  .hero-text .subtitle {
    font-size: 1.3rem;
  }
  
  .hero-image {
    justify-content: flex-end;
  }
  
  .features {
    flex-direction: row;
    gap: 32px;
    max-width: 1100px;
    padding: 0 32px;
  }
  
  .feature-card {
    min-width: 280px;
    max-width: 320px;
    padding: 32px 24px;
  }
  
  .pozisyon, .is-tanimi {
    max-width: 1000px;
    padding: 40px 32px;
  }
  
  .pozisyon-header {
    flex-direction: row;
    align-items: center;
    gap: 28px;
    margin-bottom: 18px;
  }
  
  .pozisyon-img {
    max-width: 120px;
    height: 90px;
  }
  
  .pozisyon-content {
    flex-direction: row;
    gap: 32px;
    margin-bottom: 18px;
  }
  
  .pozisyon-box {
    flex: 1;
    min-width: 250px;
    margin-bottom: 12px;
  }
  
  .pozisyon-box .btn {
    width: auto;
    min-width: 220px;
    max-width: 100%;
  }
  
  .is-tanimi-content {
    flex-direction: row;
    gap: 32px;
  }
  
  .is-tanimi-image img {
    max-width: 220px;
  }
  
  .form-card {
    padding: 48px 40px 40px 40px;
    border-radius: 20px;
    max-width: 500px;
  }
  
  .form-card .btn {
    width: 100%;
    max-width: 320px;
    font-size: 1.1rem;
    padding: 16px 32px;
  }
  
  .btn {
    font-size: 1.05rem;
    padding: 14px 28px;
  }
}

.popup-success {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(30, 60, 120, 0.18);
  justify-content: center;
  align-items: center;
  animation: popupFadeIn 0.3s;
}
@keyframes popupFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.popup-content {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 8px 32px rgba(26, 78, 138, 0.18);
  padding: 36px 32px 28px 32px;
  min-width: 260px;
  max-width: 90vw;
  text-align: center;
  position: relative;
  animation: popupScaleIn 0.3s;
}
@keyframes popupScaleIn {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.popup-close {
  position: absolute;
  top: 14px;
  right: 18px;
  font-size: 1.6rem;
  color: #1a4e8a;
  cursor: pointer;
  font-weight: 700;
  transition: color 0.2s;
}
.popup-close:hover {
  color: #b00;
}
.popup-icon {
  font-size: 2.5rem;
  margin-bottom: 10px;
  color: #1a4e8a;
}
.popup-content h3 {
  color: #1a4e8a;
  font-size: 1.25rem;
  margin-bottom: 8px;
  font-weight: 700;
}
.popup-content p {
  color: #2566b0;
  font-size: 1.05rem;
  margin-bottom: 0;
}
@media (max-width: 600px) {
  .popup-content {
    padding: 22px 8vw 18px 8vw;
    min-width: 0;
    font-size: 1rem;
  }
  .popup-icon {
    font-size: 2rem;
  }
  .popup-content h3 {
    font-size: 1.1rem;
  }
}