/* ===== Tokens ===== */
:root {
  --black: #0a0a0a;
  --anthracite: #16191f;
  --anthracite-2: #1e222a;
  --red: #e30613;
  --red-dark: #c00510;
  --white: #ffffff;
  --gray-50: #f7f7f8;
  --gray-100: #eceef0;
  --gray-300: #c7ccd1;
  --gray-500: #7a828c;
  --gray-700: #454b52;
  --radius: 4px;
  --container: 1200px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
  --transition: 0.2s ease;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  color: var(--black);
  background: var(--white);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

.ic-svg {
  width: 1em;
  height: 1em;
  vertical-align: -0.125em;
  flex-shrink: 0;
  display: inline-block;
}

a { color: inherit; text-decoration: none; }

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 64px 0; }

h1, h2, h3, h4 { margin: 0; line-height: 1.2; }

.eyebrow {
  color: var(--red);
  font-weight: 700;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 15px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--red);
  color: var(--white);
}
.btn-primary:hover { background: var(--red-dark); }

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-outline:hover { border-color: var(--white); }

.btn-dark {
  background: var(--black);
  color: var(--white);
}
.btn-dark:hover { background: var(--anthracite); }

/* ===== Header ===== */
.site-header {
  border-bottom: 1px solid var(--gray-100);
  position: sticky;
  top: 0;
  background: var(--white);
  z-index: 50;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand a {
  display: flex;
  flex-direction: column;
  color: inherit;
}
.brand-name {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--black);
}
.brand-tagline {
  font-size: 12px;
  color: var(--gray-700);
  font-weight: 500;
}

.main-nav ul {
  display: flex;
  gap: 28px;
  white-space: nowrap;
}
.main-nav a {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-700);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--black);
  border-bottom-color: var(--red);
}

.header-contact {
  text-align: right;
  font-size: 13px;
  color: var(--gray-700);
}
.header-contact a {
  display: block;
  font-weight: 700;
  font-size: 15px;
  color: var(--black);
  white-space: nowrap;
}
.header-contact .support {
  color: var(--red);
  font-weight: 700;
  font-size: 12px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 6px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--black);
  margin: 5px 0;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  color: var(--white);
  padding: 110px 0;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(10, 10, 10, 0.92) 0%, rgba(10, 10, 10, 0.82) 38%, rgba(10, 10, 10, 0.35) 75%, rgba(10, 10, 10, 0.15) 100%);
}
.hero-inner {
  position: relative;
  z-index: 1;
}
.hero-copy {
  max-width: 640px;
}
.hero-title {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.hero-title .accent { color: var(--red); }
.hero-desc {
  margin-top: 20px;
  font-size: 16px;
  color: var(--gray-300);
  max-width: 560px;
}
.hero-actions {
  margin-top: 28px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-features {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.hero-feature {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}
.hero-feature .icon-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.hero-feature span {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-300);
}

.brand-badge {
  position: absolute;
  left: 12px;
  bottom: 12px;
  width: auto;
  height: 48px;
  max-width: 120px;
  object-fit: contain;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 4px 8px;
}

/* ===== Brand strip ===== */
.brands {
  padding: 40px 0;
  border-bottom: 1px solid var(--gray-100);
}
.brands-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.brand-item {
  background: var(--white);
  border: 1px solid var(--gray-100);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  padding: 16px 10px;
  border-radius: var(--radius);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.brand-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  border-color: transparent;
}
.brand-item .brand-logo-box {
  height: 84px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.brand-item .brand-logo-img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}
.brand-item .brand-name-text {
  font-size: 13px;
  font-weight: 800;
  color: var(--black);
}
.brand-item .brand-role {
  font-size: 13px;
  color: var(--gray-700);
  font-weight: 600;
}

/* ===== Services ===== */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 12px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 0.3px;
}
.section-head .see-all {
  font-weight: 700;
  font-size: 14px;
  color: var(--black);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.service-media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: linear-gradient(160deg, var(--gray-100), var(--gray-300));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.service-media .service-photo { width: 100%; height: 100%; object-fit: cover; }
.service-media span {
  font-size: 12px;
  color: var(--gray-700);
}
.service-body { padding: 18px 20px 22px; }
.service-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.service-body p { font-size: 14px; color: var(--gray-700); margin: 0 0 14px; }
.service-body .link {
  font-size: 13px;
  font-weight: 700;
  color: var(--red);
}

/* ===== Trust strip ===== */
.trust {
  background: var(--anthracite);
  color: var(--white);
  padding: 40px 0;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 16px;
}
.trust-item .icon {
  font-size: 26px;
  flex-shrink: 0;
}
.trust-item strong {
  display: block;
  font-size: 16px;
  font-weight: 800;
}
.trust-item span {
  font-size: 13px;
  color: var(--gray-300);
}

/* ===== FAQ ===== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 820px;
}
.faq-item {
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.faq-item summary {
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 28px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: -2px;
  font-size: 22px;
  font-weight: 400;
  color: var(--red);
}
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p {
  margin: 14px 0 0;
  font-size: 15px;
  color: var(--gray-700);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--gray-50);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand .brand-name { font-size: 22px; }
.footer-brand .brand-tagline { margin: 6px 0 16px; font-size: 13px; }
.footer-brand p {
  font-size: 14px;
  color: var(--gray-700);
  max-width: 420px;
  margin: 0 0 20px;
}
.social-links { display: flex; gap: 10px; }
.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--black);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: background var(--transition);
}
.social-links a:hover { background: var(--red); }

.footer-contact h4 {
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 16px;
}
.footer-contact ul { display: flex; flex-direction: column; gap: 12px; }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--gray-700);
}
.footer-contact li .ic { flex-shrink: 0; }
.footer-contact strong { color: var(--black); }

.footer-bottom {
  border-top: 1px solid var(--gray-100);
  padding: 18px 0 90px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: var(--gray-500);
}

/* ===== Mobile sticky action bar ===== */
.mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--black);
  z-index: 60;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.mobile-bar ul {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.mobile-bar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 4px 12px;
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
}
.mobile-bar .ic { font-size: 18px; }
.mobile-bar li:nth-child(2) a { color: #25d366; }
.mobile-bar li:nth-child(3) a { color: var(--red); }

/* ===== Responsive ===== */
@media (max-width: 1080px) {
  .main-nav ul { gap: 16px; }
  .main-nav a { font-size: 14px; }
  .header-contact { font-size: 12px; }
  .header-contact a { font-size: 13px; }
}

@media (max-width: 980px) {
  .hero { padding: 80px 0; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .brands-grid { grid-template-columns: repeat(3, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav { display: none; }
  .nav-toggle { display: block; }
  .header-contact { display: none; }
  .hero { padding: 56px 0; }
  .hero-bg::after {
    background: linear-gradient(180deg, rgba(10, 10, 10, 0.55) 0%, rgba(10, 10, 10, 0.88) 55%, rgba(10, 10, 10, 0.95) 100%);
  }
  .hero-title { font-size: 30px; }
  .hero-features { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .brands-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: 1fr; }
  section { padding: 44px 0; }
  .mobile-bar { display: block; }
  body { padding-bottom: 58px; }
}

/* ===== Internal pages (Hakkımızda / Referanslarımız) ===== */
.page-banner {
  background: linear-gradient(120deg, var(--black) 0%, var(--anthracite) 60%, var(--anthracite-2) 100%);
  color: var(--white);
  padding: 48px 0;
}
.page-banner .breadcrumb {
  font-size: 13px;
  color: var(--gray-300);
  margin-bottom: 10px;
}
.page-banner .breadcrumb a { color: var(--gray-300); font-weight: 600; }
.page-banner .breadcrumb a:hover { color: var(--white); }
.page-banner h1 {
  font-size: 32px;
  font-weight: 800;
  text-transform: uppercase;
}

.about-photo {
  max-width: 760px;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: var(--shadow);
}

/* ===== Contact page ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 20px 0 0;
}
.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--gray-700);
}
.contact-list strong { color: var(--black); }
.map-embed {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 3;
}

@media (max-width: 860px) {
  .contact-layout { grid-template-columns: 1fr; }
}
.about-photo img { width: 100%; height: auto; }

.about-block { max-width: 760px; }
.about-block + .about-block { margin-top: 40px; }
.about-block h2 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 14px;
}
.about-block p {
  font-size: 15px;
  color: var(--gray-700);
  margin: 0 0 12px;
}
.about-block ul {
  display: grid;
  gap: 10px;
}
.about-block li {
  font-size: 15px;
  color: var(--gray-700);
  padding-left: 22px;
  position: relative;
}
.about-block li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--red);
  border-radius: 50%;
}
.region-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.region-tags span {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: 999px;
  padding: 6px 14px;
}

.ref-logo-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.ref-logo {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 10px;
  text-align: center;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.ref-logo:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  border-color: transparent;
}
.ref-logo img {
  max-width: 100%;
  height: 48px;
  object-fit: contain;
}
.ref-logo .ref-name {
  font-size: 12px;
  color: var(--gray-700);
  font-weight: 600;
  letter-spacing: 0.2px;
  line-height: 1.2;
}

/* certificate grid (Yetki Belgeleri) */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cert-card {
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  overflow: hidden;
  scroll-margin-top: 110px;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.cert-card:target {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(227, 6, 19, 0.25);
}
a.cert-card:hover {
  box-shadow: var(--shadow);
}
.cert-card img { width: 100%; display: block; }
.cert-card .cert-label {
  padding: 14px 16px;
  font-size: 14px;
  font-weight: 700;
  border-top: 1px solid var(--gray-100);
}

.cta-banner {
  background: var(--anthracite);
  color: var(--white);
  padding: 44px 0;
  text-align: center;
}
.cta-banner h2 { font-size: 22px; font-weight: 800; margin-bottom: 10px; }
.cta-banner p { color: var(--gray-300); margin: 0 0 22px; font-size: 15px; }
.cta-banner .hero-actions { justify-content: center; }

@media (max-width: 980px) {
  .ref-logo-grid { grid-template-columns: repeat(4, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .ref-logo-grid { grid-template-columns: repeat(3, 1fr); }
  .cert-grid { grid-template-columns: 1fr; }
  .page-banner h1 { font-size: 24px; }
}

@media (max-width: 720px) {
  .main-nav.open {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
    box-shadow: var(--shadow);
  }
  .main-nav.open ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
  }
  .main-nav.open a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
  }
}