/* ======================
   RESET & TEMEL AYARLAR
====================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: #ffffff;
  color: #1f2937;
  line-height: 1.85;
  font-size: 16.5px;
}

/* ======================
   GENEL YAPILAR
====================== */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 80px 0;
}

h1, h2, h3 {
  color: #0f172a;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 42px;
  line-height: 1.2;
  margin-bottom: 20px;
}

h2 {
  font-size: 30px;
  margin-top: 60px;
  margin-bottom: 18px;
}

h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

p {
  margin-bottom: 22px;

  color: #374151;
}

ul {
  margin: 20px 0 30px 20px;
}

li {
  margin-bottom: 14px;
  max-width: 900px;
}

/* ======================
   HEADER
====================== */
.header {
  position: sticky;
  top: 0;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  color: #0f172a;
}

.nav {
  display: flex;
  gap: 28px;
}

.nav a {
  text-decoration: none;
  font-weight: 500;
  color: #374151;
  transition: color 0.2s ease;
}

.nav a:hover {
  color: #2563eb;
}

.menu-btn {
  display: none;
  font-size: 24px;
  background: none;
  border: none;
  cursor: pointer;
}

/* ======================
   HERO
====================== */
.hero {
  background: linear-gradient(135deg, #f8fafc, #eef2ff);
  padding: 110px 0;
}

.hero-content {
  max-width: 800px;
}

.hero p {
  font-size: 18px;
  color: #475569;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  padding: 14px 26px;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
}

.btn.primary {
  background-color: #2563eb;
  color: #ffffff;
}

.btn.primary:hover {
  background-color: #1d4ed8;
}

.btn.outline {
  border: 2px solid #2563eb;
  color: #2563eb;
}

/* ======================
   ÖNE ÇIKAN KARTLAR
====================== */
.highlights {
  background: #ffffff;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.highlight-card {
  background: #f9fafb;
  border-radius: 10px;
  padding: 32px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}

.highlight-card p {
  margin-bottom: 0;
  font-size: 15.5px;
}

/* ======================
   ANA İÇERİK (UZUN METİN)
====================== */
.content {
  background: #ffffff;
}

.content h2 {
  position: relative;
  padding-top: 10px;
  font-size: 20px;
}

.content h3 {

  font-size: 18px;
}
.content h2::before {
  content: "";
  width: 60px;
  height: 4px;
  background: #2563eb;
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 2px;
}

.content p {
  font-size: 14px;
}

.content ul li {
  list-style-type: disc;
  font-size: 16.5px;
}

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

.cta h2 {
  color: #ffffff;
  margin-top: 0;
}

.cta p {
  color: #e0e7ff;
  margin-bottom: 30px;
}

.cta .btn.primary {
  background: #ffffff;
  color: #1e40af;
}

summary{
  
  margin-top: 12px;
}

summary:hover{
  cursor: pointer;
  margin-top: 12px;
}



.image-section {
  padding: 60px 0;
  background: #f9fafb;
}

.image-section h2 {
  text-align: center;
  margin-bottom: 40px;
  font-size: 28px;
  color: #1f2937;
}

.image-grid {
  display: grid;
  gap: 24px;
}

/* Kolon sayıları */
.image-grid.columns-2 {
  grid-template-columns: repeat(2, 1fr);
}

.image-grid.columns-3 {
  grid-template-columns: repeat(3, 1fr);
}

.image-grid.columns-4 {
  grid-template-columns: repeat(4, 1fr);
}

.image-grid figure {
  background: #ffffff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.image-grid figure:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(0,0,0,0.12);
}

.image-grid img {
  width: 100%;
  height: auto;
  display: block;
}

.image-grid figcaption {
  padding: 16px 18px;
  font-size: 14px;
  line-height: 1.6;
  color: #4b5563;
}

.single-image {
  
  margin:20px 0;
}

.single-image img {
  width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.08);
  display: block;
}


.services {
  padding: 70px 0;
  background: #ffffff;
}

.services h2 {
  text-align: center;
  font-size: 30px;
  margin-bottom: 12px;
}

.section-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  color: #4b5563;
  line-height: 1.7;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-box {
  background: #f9fafb;
  padding: 28px;
  border-radius: 14px;
}

.service-box h3 {
  margin-bottom: 12px;
  font-size: 18px;
}

.service-box p {
  font-size: 15px;
  line-height: 1.7;
  color: #374151;
}



.youtube-section {
  padding: 60px 0;
}

.youtube-section h2 {
  text-align: center;
  margin-bottom: 32px;
}

.youtube-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.youtube-item {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(0,0,0,0.08);
}

.youtube-item iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.services-section {
  padding: 90px 0;
  background: #f9fafb;
}

.services-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.services-header h1 {
  font-size: 36px;
  margin-bottom: 16px;
}

.services-header p {
  font-size: 16px;
  color: #4b5563;
  line-height: 1.7;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: #ffffff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 14px 36px rgba(0,0,0,0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 48px rgba(0,0,0,0.12);
}

.service-card img {
  width: 100%;
  height: auto;
  display: block;
}

.service-card h3 {
  font-size: 20px;
  margin: 20px 20px 10px;
}

.service-card p {
  font-size: 15px;
  line-height: 1.7;
  color: #374151;
  margin: 0 20px 24px;
}

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

/* Mobil */
@media (max-width: 640px) {
  .services-section {
    padding: 60px 0;
  }

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

  .services-header h1 {
    font-size: 28px;
  }
}



.references-section {
  padding: 90px 0;
}

.references-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.reference-item {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.reference-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
}

.reference-item:hover img {
  transform: scale(1.06);
}

/* Overlay */
.reference-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 16px;
  background: linear-gradient(
    to top,
    rgba(0,0,0,0.6),
    rgba(0,0,0,0)
  );
}

.reference-overlay span {
  color: #ffffff;
  font-size: 15px;
  font-weight: 500;
  background: rgba(0,0,0,0.55);
  padding: 6px 12px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
}


/*****/

.contact-section {
  padding: 90px 0;
  background: #f9fafb;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.contact-info h2 {
  font-size: 32px;
  margin-bottom: 20px;
}

.contact-info p {
  font-size: 16px;
  line-height: 1.7;
  color: #374151;
  margin-bottom: 24px;
}

.contact-info ul {
  list-style: none;
  padding: 0;
}

.contact-info li {
  font-size: 15px;
  margin-bottom: 12px;
  color: #374151;
}

.contact-form-wrapper {
  background: #ffffff;
  padding: 40px;
  border-radius: 18px;
  box-shadow: 0 18px 40px rgba(0,0,0,0.1);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 14px;
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  font-size: 15px;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #2563eb;
}

button[type="submit"] {
  width: 100%;
  padding: 14px;
  background: #2563eb;
  color: #ffffff;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  cursor: pointer;
}

button[type="submit"]:hover {
  background: #1d4ed8;
}

.form-note {
  font-size: 13px;
  color: #6b7280;
  margin-top: 14px;
  text-align: center;
}

/* Honeypot gizleme */
.honeypot {
  display: none;
}


.table-wrapper {
  max-width: 1100px;
  overflow-x: auto;
}

.product-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  font-size: 15px;
}

.product-table thead {
  background-color: #f4f6f8;
}

.product-table th,
.product-table td {
  padding: 14px 16px;
  border: 1px solid #e3e6ea;
  text-align: left;
  vertical-align: top;
}

.product-table th {
  font-weight: 600;
  color: #333;
}

.product-table tbody tr:hover {
  background-color: #fafafa;
}















/* Mobil */
@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-info h2 {
    text-align: center;
  }
}



/*****/


/* Tablet */
@media (max-width: 1024px) {
  .references-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Mobil */
@media (max-width: 768px) {
  .references-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Küçük mobil */
@media (max-width: 480px) {
  .references-grid {
    grid-template-columns: 1fr;
  }
}


/* Tablet */
@media (max-width: 1024px) {
  .references-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Mobil */
@media (max-width: 768px) {
  .references-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Küçük Mobil */
@media (max-width: 480px) {
  .references-grid {
    grid-template-columns: 1fr;
  }
}



/* Mobil */
@media (max-width: 768px) {
  .youtube-grid {
    grid-template-columns: 1fr;
  }
}



@media (max-width: 900px) {
  .service-grid {
    grid-template-columns: 1fr;
  }
}


/* Tablet */
@media (max-width: 1024px) {
  .image-grid.columns-4 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Mobil */
@media (max-width: 768px) {
  .image-grid.columns-2,
  .image-grid.columns-3,
  .image-grid.columns-4 {
    grid-template-columns: 1fr;
  }

  .image-section h2 {
    font-size: 22px;
  }
}



/* ======================
   FOOTER
====================== */
.footer {
  background: #0f172a;
  color: #9ca3af;
  text-align: center;
  padding: 40px 0;
}

.footer p {
  margin: 0;
  font-size: 14.5px;
}


/* ======================
   RESPONSIVE
====================== */
@media (max-width: 900px) {
  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 26px;
  }
}

@media (max-width: 768px) {
  .nav {
    position: absolute;
    top: 70px;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    width: 220px;
    padding: 20px;
    display: none;
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
  }

  .nav.active {
    display: flex;
  }

  .menu-btn {
    display: block;
  }

  section {
    padding: 60px 0;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 16px;
  }

  h1 {
    font-size: 28px;
  }

  p {
    font-size: 16px;
  }
}