* {
  margin: 0;
  padding: 0;
}

body {
  background-color: #F9F9FB;
  color: #2C3E50;
  font-family: 'Inter', 'Segoe UI', 'Roboto', Arial, Verdana, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

.site-header {
  background-color: #FFFFFF;
  padding: 48px 24px 32px 24px;
  text-align: center;
  border-bottom: 1px solid #EAEDF2;
}

.site-header h1 {
  color: #001F3F;
  font-size: 38px;
  font-weight: bold;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.site-header p {
  color: #5A6C7D;
  font-size: 16px;
}

nav {
  background-color: #FFFFFF;
  padding: 0;
  text-align: center;
  border-bottom: 1px solid #EAEDF2;
}

nav a {
  display: inline-block;
  color: #2C3E50;
  text-decoration: none;
  padding: 18px 24px;
  font-size: 15px;
  font-weight: bold;
}

nav a:hover {
  color: #3498DB;
  background-color: #F0F4F8;
}

.container {
  width: 880px;
  margin: 48px auto;
  padding: 0 24px;
}

h2 {
  color: #001F3F;
  font-size: 26px;
  font-weight: bold;
  margin-top: 48px;
  margin-bottom: 20px;
}

h3 {
  color: #2C3E50;
  font-size: 19px;
  font-weight: bold;
  margin-top: 32px;
  margin-bottom: 12px;
}

hr {
  border: none;
  border-top: 1px solid #EAEDF2;
  margin: 40px 0;
}

a {
  color: #3498DB;
  text-decoration: none;
  font-weight: bold;
}

a:hover {
  color: #001F3F;
  text-decoration: underline;
}

ul, ol {
  padding-left: 24px;
  margin: 16px 0;
  line-height: 1.7;
  color: #2C3E50;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 32px 0;
  background-color: transparent;
  border: 1px solid #E1E6EC;
}

th {
  background-color: #F0F4F8;
  color: #001F3F;
  padding: 14px 16px;
  text-align: left;
  font-weight: bold;
  font-size: 14px;
  letter-spacing: 0.3px;
  border-bottom: 1px solid #E1E6EC;
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid #F1F3F6;
  color: #2C3E50;
  background-color: #FFFFFF;
  vertical-align: middle;
  font-size: 15px;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: #F9FBFD;
}

.kart-kutu {
  background-color: #FFFFFF;
  border: none;
  border-left: 4px solid #3498DB;
  padding: 28px 32px;
  margin: 32px 0;
}

.kart-kutu p {
  margin-bottom: 12px;
  color: #2C3E50;
  line-height: 1.65;
}

.kart-kutu p:last-child {
  margin-bottom: 0;
}

.form-satir {
  margin-bottom: 28px;
}

label {
  display: block;
  color: #001F3F;
  font-weight: bold;
  font-size: 15px;
  margin-bottom: 8px;
}

input[type="text"],
input[type="password"],
input[type="email"],
textarea {
  width: 100%;
  max-width: 600px;
  background-color: #FFFFFF;
  border: 1px solid #DDE1E7;
  color: #2C3E50;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 16px;
}

input:focus,
textarea:focus {
  border-color: #3498DB;
  outline: none;
  background-color: #F5FAFF;
}

textarea {
  vertical-align: top;
}

input[type="submit"],
input[type="reset"] {
  background-color: #3498DB;
  color: #FFFFFF;
  border: none;
  padding: 12px 32px;
  font-family: inherit;
  font-size: 16px;
  font-weight: bold;
  margin-right: 12px;
}

input[type="reset"] {
  background-color: #E1E6EC;
  color: #2C3E50;
}

input[type="submit"]:hover {
  background-color: #001F3F;
}

input[type="reset"]:hover {
  background-color: #CFD6DF;
}

input[type="checkbox"],
input[type="radio"] {
  margin-right: 8px;
}

.secenekler {
  line-height: 2;
}

.resim-alan {
  background-color: #FFFFFF;
  border: 1px solid #EAEDF2;
  display: inline-block;
  padding: 12px;
  margin: 12px;
  text-align: center;
  vertical-align: top;
  width: 240px;
}

.resim-alan p {
  color: #2C3E50;
  font-size: 14px;
  font-weight: bold;
  margin: 10px 0 0 0;
}

.resim-alan img {
  width: 100%;
  height: auto;
  background-color: #F0F4F8;
  display: block;
  border: 1px solid #EAEDF2;
}

.profil-resim {
  border: 2px solid #3498DB;
  padding: 3px;
  background-color: #FFFFFF;
}

.bilgi-tablosu,
.girisim-tablosu {
  background-color: transparent;
  border: none;
}

.bilgi-tablosu td,
.girisim-tablosu td {
  background-color: transparent;
}

.bilgi-etiket {
  background-color: #F0F4F8;
  width: 160px;
  color: #001F3F;
  font-weight: bold;
}

.bilgi-deger {
  background-color: #FFFFFF;
  color: #2C3E50;
}

footer {
  background-color: #FFFFFF;
  border-top: 1px solid #EAEDF2;
  text-align: center;
  padding: 24px;
  color: #5A6C7D;
  font-size: 14px;
  margin-top: 64px;
}

footer a {
  color: #3498DB;
  text-decoration: none;
  font-weight: bold;
}

footer a:hover {
  color: #001F3F;
}

.tesekkur-bolum {
  background-color: #FFFFFF;
  border: 1px solid #EAEDF2;
  padding: 32px 24px;
  margin-top: 40px;
  text-align: center;
}

.tesekkur-bolum h2 {
  color: #001F3F;
  margin-bottom: 20px;
}

.tesekkur-bolum h3 {
  color: #3498DB;
}

.tesekkur-bolum p {
  color: #2C3E50;
  max-width: 600px;
  margin: 0 auto 16px auto;
}

.tesekkur-bolum .isim-listesi {
  list-style: none;
  padding: 0;
  text-align: center;
}

.tesekkur-bolum .isim-listesi li {
  display: inline-block;
  margin: 6px 12px;
  font-weight: bold;
  color: #2C3E50;
}

/* === EKSİK SINIFLAR: Butonlar ve Grid (HTML ile uyumlu) === */
.btn {
  display: inline-block;
  background-color: #3498DB;
  color: #FFFFFF;
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: bold;
  text-decoration: none;
  margin-right: 12px;
  margin-bottom: 8px;
}

.btn:hover {
  background-color: #001F3F;
  color: #FFFFFF;
  text-decoration: none;
}

.btn-outline {
  background-color: transparent;
  border: 1px solid #3498DB;
  color: #3498DB;
}

.btn-outline:hover {
  background-color: #3498DB;
  color: #FFFFFF;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.grid-3 .item {
  background-color: #FFFFFF;
  padding: 24px;
  border: 1px solid #EAEDF2;
}

.grid-3 .item h3 {
  color: #001F3F;
}

.grid-3 .item p {
  color: #5A6C7D;
  margin-bottom: 10px;
}
/* === İLETİŞİM TABLOSU === */
.contact-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  background-color: transparent;
  border: 1px solid #E1E6EC;
}

.contact-table th {
  background-color: #F0F4F8;
  color: #001F3F;
  padding: 14px 16px;
  text-align: center;
  font-weight: bold;
  font-size: 14px;
  letter-spacing: 0.3px;
  border-bottom: 1px solid #E1E6EC;
}

.contact-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #F1F3F6;
  color: #2C3E50;
  background-color: #FFFFFF;
  vertical-align: middle;
  font-size: 15px;
}

.contact-table tr:last-child td {
  border-bottom: none;
}

.contact-table tr:hover td {
  background-color: #F9FBFD;
}