:root {
  --main-blue: #6ec1e4;
  --light-blue: #eaf7fd;
  --dark-bg: #1f1f1f;
}

body {
  font-family: "Poppins", sans-serif;
  background-color: #ffffff;
  color: #1f1f1f;
}

/* Top Line */
.top-line {
  height: 2px;
  background: #ffffff;
  width: 100%;
}

/* Header */
header {
  background: #ffffff;
  border-bottom: 1px solid #f0f0f0;
}

.logo {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 1px;
}

.nav-link {
  font-weight: 500;
  margin-left: 20px;
  color: #1f1f1f !important;
}

.nav-link:hover {
  color: var(--main-blue) !important;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #ffffff, var(--light-blue));
  padding: 100px 0;
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
}

.hero p {
  font-size: 18px;
  margin-top: 20px;
  max-width: 520px;
}

/* Products Section */
.products {
  background: var(--dark-bg);
  padding: 100px 0;
  color: #ffffff;
}

.product-card {
  margin-bottom: 80px;
}

.product-card h2 {
  font-size: 36px;
  font-weight: 700;
}

.product-card p {
  font-size: 16px;
  margin-top: 15px;
  line-height: 1.7;
  color: #dcdcdc;
}

.product-image {
  width: 100%;
  max-width: 520px;
  height: 520px; /* dikdörtgen */
  border-radius: 40px; /* oval köşeler */
  background: #2c2c2c;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Location Badge */
.location-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2px solid var(--main-blue);
  color: var(--main-blue);
  margin-right: 10px;
}

/* Footer */
.footer {
  background: #1f1f1f;
  color: #cbd5e1;
  padding: 80px 0 30px;
  font-size: 14px;
}

.footer-logo {
  font-size: 28px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 20px;
}

.footer-desc {
  max-width: 320px;
  line-height: 1.7;
  color: #94a3b8;
}

.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: 0.3s;
}

.footer-links a:hover {
  color: #6ec1e4;
  padding-left: 4px;
}

/* Offices */
.footer-office {
  margin-bottom: 18px;
}

.footer-office strong {
  display: block;
  color: #ffffff;
  font-weight: 600;
}

.footer-office span {
  display: block;
  color: #94a3b8;
  font-size: 13px;
}

/* Bottom */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 50px;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.footer-social a {
  color: #ffffff;
  margin-left: 15px;
  font-size: 16px;
  transition: 0.3s;
}

.footer-social a:hover {
  color: #6ec1e4;
}

/* Supply Process */
.supply {
  background: #ffffff;
  padding: 100px 0;
}

.supply-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 10px;
}

.supply-sub {
  font-size: 16px;
  color: #777;
}

.supply-box {
  background: #ffffff;
  border-radius: 20px;
  padding: 50px 30px;
  height: 100%;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
  transition: all 0.35s ease;
}

.supply-box:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 60px rgba(110, 193, 228, 0.25);
}

.supply-box i {
  font-size: 46px;
  color: var(--main-blue);
  margin-bottom: 25px;
}

.supply-box h4 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 15px;
}

.supply-box p {
  font-size: 15px;
  color: #666;
  line-height: 1.7;
}

/* Top Info Bar */
.top-info {
  background: #ffffff;
  font-size: 13px;
  padding: 8px 0;
}

.top-info-left span {
  margin-right: 25px;
  color: #555;
  font-weight: 500;
}

.top-info-left i {
  margin-right: 6px;
  color: var(--main-blue);
  border: 1.5px solid var(--main-blue);
  border-radius: 50%;
  padding: 6px;
  font-size: 11px;
}

.top-info-right a {
  margin-left: 12px;
  color: var(--main-blue);
  background: transparent;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1.5px solid var(--main-blue);
  transition: all 0.3s ease;
}

.top-info-right a:hover {
  background: var(--main-blue);
  color: #ffffff;
  transform: translateY(-2px);
}

/* Subtle Divider */
.top-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, #e6e6e6, transparent);
}

.products-title {
  font-size: 38px;
  font-weight: 800;
}

.products-sub {
  color: #cfcfcf;
  max-width: 600px;
  margin: 0 auto;
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--light-blue), #ffffff);
  padding: 80px 0;
}

.cta h2 {
  font-size: 34px;
  font-weight: 800;
}

.cta p {
  font-size: 16px;
  margin-top: 10px;
  color: #555;
}

.cta .btn-primary {
  background: var(--main-blue);
  border: none;
  padding: 12px 26px;
  font-weight: 600;
}

.cta .btn-outline-primary {
  border-color: var(--main-blue);
  color: var(--main-blue);
  padding: 12px 26px;
  font-weight: 600;
}

.cta .btn-outline-primary:hover {
  background: var(--main-blue);
  color: #fff;
}

/* Why Us */
.why-us {
  background: #ffffff;
  padding: 100px 0;
}

.why-title {
  font-size: 36px;
  font-weight: 800;
}

.why-sub {
  font-size: 16px;
  color: #777;
}

.why-box {
  background: #ffffff;
  padding: 40px 25px;
  border-radius: 20px;
  text-align: center;
  height: 100%;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
  transition: all 0.35s ease;
}

.why-box:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 60px rgba(110, 193, 228, 0.25);
}

.why-box i {
  font-size: 42px;
  color: var(--main-blue);
  margin-bottom: 20px;
}

.why-box h5 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.why-box p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

/* Offices */
.offices {
  background: #ffffff;
  padding: 100px 0;
}

.offices-title {
  font-size: 36px;
  font-weight: 800;
}

.offices-wrapper {
  position: relative;
}

.office-box {
  padding: 40px 50px;
}

.office-box h4 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 25px;
}

.office-box ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.office-box li {
  font-size: 15px;
  color: #555;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
}

.office-box i {
  color: var(--main-blue);
  margin-right: 12px;
  font-size: 16px;
}

/* Vertical Divider */
.office-divider {
  width: 1px;
  background: linear-gradient(
    to bottom,
    transparent,
    rgba(0, 0, 0, 0.2),
    transparent
  );
}

/* Map */
.office-map iframe {
  border-radius: 50px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.section-divider {
  height: 1px; /* 1px yerine 2px */
  width: 100%;
  background: linear-gradient(
    to right,
    transparent,
    rgba(204, 206, 206, 0.6),
    transparent
  );
}

/* =========================
   PRODUCT DETAIL PAGE
========================= */

/* Hero */
.product-hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #f8fbff, #eef6fb);
}

.product-hero h1 {
  font-size: 46px;
  font-weight: 800;
  margin-bottom: 20px;
}

.product-sub {
  font-size: 17px;
  color: #555;
  max-width: 520px;
}

.product-main-image {
  height: 420px;
  border-radius: 24px;
  background: #e6eef5;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #777;
  font-weight: 600;
}

/* ÜRÜN GALERİ */
.product-gallery {
  padding: 80px 0;
}

/* DIŞ KUTU */
.gallery-img {
  width: 260px; /* img 220 + padding */
  height: 390px; /* img 350 + padding */
  background: #ffffff;
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18);
  transition: 0.3s ease;
  border: 2px solid transparent; /* normalde görünmez */
}

.gallery-img:hover {
  border-color: #4fa3ff; /* SİTEDE KULLANDIĞIMIZ MAVİ */
  box-shadow: 0 0 0 4px rgba(79, 163, 255, 0.25),
    0 18px 45px rgba(0, 0, 0, 0.25);
}

/* IMG */
.gallery-img img {
  width: 220px;
  height: 350px;
  object-fit: contain;
}

/* Description */
.product-description {
  padding: 80px 0;
  background: #ffffff;
}

.product-description h2 {
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 20px;
}

/* ================================
   TEKNİK ÖZELLİKLER BÖLÜMÜ
   ================================ */

.product-tech {
  padding: 100px 0;
  background: #1f1f1f; /* FOOTER İLE AYNI KOYU TON */
}

/* DIŞ BAŞLIK */
.product-tech h2 {
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* DIŞ ALT BAŞLIK */
.tech-sub {
  color: #cbd5e1;
  font-size: 16px;
}

/* GRID */
.product-tech .row.g-4 {
  margin-top: 30px;
}

/* KUTU */
.tech-box {
  background: #ffffff;
  border-radius: 22px;
  padding: 38px 26px;
  height: 100%;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.25);
  transition: all 0.35s ease;
}

/* HOVER */
.tech-box:hover {
  transform: translateY(-6px);
}

/* ICON */
.tech-box i {
  font-size: 38px;
  color: #4fa3ff; /* ANA MAVİ */
  margin-bottom: 18px;
}

/* KUTU BAŞLIK */
.tech-box h5 {
  font-weight: 600;
  color: #000000; /* ZORUNLU SİYAH */
  margin-bottom: 10px;
}

/* KUTU AÇIKLAMA */
.tech-box p {
  font-size: 15px;
  color: #000000; /* ZORUNLU SİYAH */
  line-height: 1.6;
  margin: 0;
}

/* TABLO ALANI */
.tech-table {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 20px;
  padding: 30px;
  margin-top: 50px;
}

.tech-table ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tech-table li {
  color: #ffffff;
  font-size: 15px;
  margin-bottom: 10px;
}

/* NOT */
.tech-note {
  color: #94a3b8;
  font-size: 14px;
  margin-top: 25px;
}

/* PDF */
.product-pdf {
  padding: 80px 0;
  background: #f8fafc;
}

/* CTA */
.product-cta {
  padding: 90px 0;
  background: linear-gradient(135deg, #6ec1e4, #4fa3d1);
  color: #ffffff;
}

.product-cta h2 {
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 15px;
}

.product-cta .btn {
  background: #ffffff;
  color: #0f172a;
  border: none;
  padding: 14px 36px;
  font-weight: 600;
  border-radius: 30px;
}

/* LOGO */
.logo {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: 34px; /* boyut büyüdü */
  letter-spacing: 1px;
  text-decoration: none;
}

.logo-mtc {
  color: #d60000; /* kırmızı */
}

.logo-group {
  color: #000000; /* siyah */
}

/* Mobil uyum */
@media (max-width: 768px) {
  .logo {
    font-size: 26px;
  }
}

.pdf-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.pdf-modal-content {
  position: relative;
  width: 90%;
  height: 90%;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
}

.pdf-modal-content iframe {
  width: 100%;
  height: 100%;
}

.pdf-close {
  position: absolute;
  top: 10px;
  right: 15px;
  background: #d60000;
  color: #fff;
  border: none;
  font-size: 28px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10;
}