:root {
  --ink: #102033;
  --muted: #5e6f84;
  --brand: #0f6ea3;
  --brand-dark: #0b4f79;
  --accent: #f3b23a;
  --surface: #ffffff;
  --soft: #eef5f9;
  --line: #d8e3ea;
  --shadow: 0 18px 50px rgba(8, 43, 68, .15);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", Arial, sans-serif;
  color: var(--ink);
  background: #fff;
}

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

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

.container {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 9px max(18px, calc((100vw - 1120px) / 2));
  color: #fff;
  background: var(--brand-dark);
  font-size: .9rem;
  font-weight: 700;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 14px max(18px, calc((100vw - 1120px) / 2));
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
}

.brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
}

.brand small {
  color: var(--muted);
  font-size: .8rem;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: .92rem;
  font-weight: 800;
}

.nav-call {
  color: #fff;
  background: var(--brand);
  padding: 10px 14px;
  border-radius: 6px;
}

.hero {
  position: relative;
  min-height: 680px;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 28, 45, .91), rgba(7, 28, 45, .58) 48%, rgba(7, 28, 45, .18)),
    url("images/gebze-pano-kurulum.jpg") center / cover no-repeat;
}

.hero-inner {
  position: relative;
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 132px 0 76px;
  display: grid;
  grid-template-columns: minmax(0, 720px) 300px;
  gap: 48px;
  align-items: end;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: .82rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(2.45rem, 6vw, 5rem);
  line-height: .98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.08rem;
}

p {
  color: var(--muted);
  line-height: 1.75;
}

.hero p {
  color: rgba(255, 255, 255, .86);
}

.lead {
  max-width: 680px;
  font-size: 1.1rem;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 19px;
  border-radius: 6px;
  font-weight: 900;
  border: 1px solid transparent;
}

.btn.primary {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 14px 30px rgba(15, 110, 163, .26);
}

.btn.secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, .55);
  background: rgba(255, 255, 255, .12);
}

.hero-panel {
  display: grid;
  gap: 12px;
}

.hero-panel div {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, .24);
  background: rgba(255, 255, 255, .12);
  border-radius: 8px;
  backdrop-filter: blur(8px);
}

.hero-panel strong,
.hero-panel span {
  display: block;
}

.hero-panel strong {
  font-size: 1.7rem;
}

.hero-panel span {
  margin-top: 4px;
  color: rgba(255, 255, 255, .82);
}

.section {
  padding: 86px 0;
}

.muted {
  background: var(--soft);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 460px;
  gap: 54px;
  align-items: center;
}

.two-col.reverse {
  grid-template-columns: 460px 1fr;
}

.feature-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.service-card {
  min-height: 238px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 16px;
  color: #fff;
  background: var(--brand);
  border-radius: 6px;
  font-weight: 900;
}

.area-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.area-tags span {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--brand-dark);
  background: #fff;
  font-size: .9rem;
  font-weight: 800;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.steps div {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.steps strong {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 16px;
  color: #fff;
  background: var(--brand-dark);
  border-radius: 50%;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.gallery-card {
  margin: 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 34px rgba(8, 43, 68, .10);
}

.gallery-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.gallery-card figcaption {
  min-height: 56px;
  padding: 14px 16px;
  color: var(--brand-dark);
  background: #fff;
  font-weight: 900;
  line-height: 1.35;
}

.faq-wrap {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 40px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

summary {
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 900;
}

details p {
  padding: 0 20px 18px;
}

.cta {
  padding: 70px 0;
  color: #fff;
  background: var(--brand-dark);
}

.cta p {
  color: rgba(255, 255, 255, .82);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
}

.footer {
  padding: 38px 0;
  background: #071c2d;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr .7fr 1fr;
  gap: 28px;
}

.footer strong,
.footer a {
  color: #fff;
}

.footer p {
  color: rgba(255, 255, 255, .72);
}

@media (max-width: 900px) {
  .topbar,
  .nav,
  .nav-links,
  .hero-inner,
  .two-col,
  .two-col.reverse,
  .service-grid,
  .steps,
  .faq-wrap,
  .cta-inner,
  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: 10px;
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    padding: 110px 0 54px;
  }

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

  .section {
    padding: 62px 0;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .topbar {
    font-size: .82rem;
  }

  .nav-links {
    display: none;
  }

  .hero-panel {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.42rem;
  }

  .btn {
    width: 100%;
  }

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