:root {
  --zf-navy: #052942;
  --zf-deep: #03243a;
  --zf-ink: #001b32;
  --zf-red: #dc202d;
  --zf-paper: #f8f7f3;
  --zf-copy: #526677;
  --zf-line: #dad7cf;
  --zf-card-bg: #ffffff;
}

.zf-page {
  width: 100%;
  overflow: hidden;
  color: var(--zf-ink);
  background: #fbfaf7;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.zf-page * {
  box-sizing: border-box;
}

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

.zf-page a {
  text-decoration: none;
  color: inherit;
}

.zf-symbols {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* ==========================================================================
   01 — HERO
   ========================================================================== */
.zf-hero {
  position: relative;
  min-height: clamp(560px, calc(100vh - 76px), 880px);
  height: calc(100vh - 76px);
  overflow: hidden;
  isolation: isolate;
  color: #fff;
  background: var(--zf-deep);
  display: flex;
  align-items: center;
}

.zf-hero-photo {
  position: absolute;
  z-index: -3;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 50%;
}

.zf-hero-shade {
  position: absolute;
  z-index: -2;
  inset: 0;
  background: linear-gradient(90deg, rgba(1, 29, 47, 0.95) 0%, rgba(1, 31, 51, 0.85) 36%, rgba(1, 32, 51, 0.4) 66%, rgba(1, 31, 50, 0.1) 100%),
              linear-gradient(180deg, rgba(0, 20, 34, 0.25) 0%, transparent 40%, rgba(0, 25, 40, 0.2) 100%);
}

.zf-hero-copy {
  position: relative;
  z-index: 2;
  width: min(92%, 1440px);
  max-width: 720px;
  margin-left: max(32px, calc((100% - 1440px) / 2));
  margin-top: 10px;
}

.zf-hero-kicker {
  margin: 0 0 14px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.zf-hero h1 {
  margin: 0 0 16px;
  color: #fff;
  font-size: clamp(40px, 4.4vw, 70px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.06;
  text-transform: uppercase;
}

.zf-hero-lead {
  margin: 0 0 28px;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(15px, 1.2vw, 18px);
  line-height: 1.55;
  max-width: 580px;
}

.zf-outline-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: 50px;
  padding: 0 26px;
  color: #fff;
  border: 2px solid var(--zf-red);
  background: rgba(1, 31, 49, 0.35);
  font-size: 13.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: all 0.25s ease;
}

.zf-outline-button:hover {
  background: var(--zf-red);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(220, 32, 45, 0.4);
}

.zf-outline-button span {
  font-size: 20px;
  font-weight: 300;
  transition: transform 0.25s ease;
}

.zf-outline-button:hover span {
  transform: translateX(4px);
}

/* ==========================================================================
   02 — PROCESS BAR
   ========================================================================== */
.zf-process {
  min-height: 80px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: #fbfaf7;
  border-bottom: 1px solid var(--zf-line);
}

.zf-process > div {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 20px 12px;
  color: var(--zf-ink);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.zf-process svg {
  width: 32px;
  height: 32px;
  stroke: var(--zf-ink);
  stroke-width: 1.6;
  fill: none;
}

.zf-process > div:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 25%;
  right: 0;
  width: 1px;
  height: 50%;
  background: var(--zf-line);
}

/* ==========================================================================
   03 — INTRO SECTION
   ========================================================================== */
.zf-intro {
  width: min(92%, 1440px);
  margin: 0 auto;
  padding: 56px 0 40px;
  display: grid;
  grid-template-columns: 46% minmax(0, 54%);
  align-items: center;
  gap: 32px;
}

.zf-intro > div h2 {
  margin: 0 0 10px;
  color: var(--zf-ink);
  font-size: clamp(26px, 2.4vw, 36px);
  font-weight: 900;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.zf-intro > div p {
  margin: 0;
  color: var(--zf-copy);
  font-size: 14.5px;
  font-weight: 500;
}

.zf-intro nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  height: 80px;
}

.zf-intro nav a {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 24px;
  color: var(--zf-ink);
  border-left: 1px solid var(--zf-line);
  cursor: pointer;
  transition: all 0.25s ease;
}

.zf-intro nav b {
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 900;
  color: var(--zf-red);
  transition: color 0.2s ease;
}

.zf-intro nav span {
  font-size: 12.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--zf-ink);
  transition: color 0.2s ease;
}

.zf-intro nav a:hover span,
.zf-intro nav a.is-active span,
.zf-intro nav a:hover b,
.zf-intro nav a.is-active b {
  color: var(--zf-red);
}

.zf-intro nav a::after {
  content: '';
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 0;
  height: 3px;
  background: var(--zf-red);
  opacity: 0;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.zf-intro nav a.is-active::after,
.zf-intro nav a:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.zf-intro nav a:hover {
  background: rgba(220, 32, 45, 0.04);
}

/* ==========================================================================
   04 — DERİN TEMEL SİSTEMLERİ
   ========================================================================== */
.zf-deep {
  width: min(92%, 1440px);
  margin: 0 auto;
  padding: 16px 0 40px;
}

.zf-deep > h2,
.zf-improvement > h2,
.zf-shoring > h2 {
  margin: 0 0 14px;
  color: var(--zf-red);
  font-size: 12.5px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.zf-deep-grid {
  display: grid;
  grid-template-columns: 55% minmax(0, 45%);
  gap: 14px;
}

/* Fore Kazık Big Card */
.zf-fore {
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 33% 37% 30%;
  box-shadow: 0 2px 10px rgba(0, 27, 50, 0.03);
}

.zf-fore > div {
  position: relative;
  padding: 22px 18px 32px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.zf-fore h3 {
  margin: 0 0 8px;
  color: var(--zf-ink);
  font-size: 18px;
  font-weight: 800;
}

.zf-fore p {
  margin: 0;
  color: var(--zf-copy);
  font-size: 12px;
  line-height: 1.45;
}

.zf-card-arrow {
  display: none !important;
}

.zf-fore-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.zf-fore-blueprint {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #03243a;
}

/* Right 3 Cards Stack */
.zf-deep-list {
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  gap: 10px;
}

.zf-deep-list article {
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 38% minmax(0, 62%);
  box-shadow: 0 2px 10px rgba(0, 27, 50, 0.03);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.zf-deep-list article:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(0, 27, 50, 0.07);
}

.zf-deep-list img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.zf-deep-list article > div {
  position: relative;
  padding: 12px 16px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.zf-deep-list h3 {
  margin: 0 0 4px;
  color: var(--zf-ink);
  font-size: 15px;
  font-weight: 800;
}

.zf-deep-list p {
  margin: 0;
  color: var(--zf-copy);
  font-size: 11.5px;
  line-height: 1.38;
}

.zf-deep-list .zf-card-arrow {
  left: auto;
  right: 16px;
  bottom: 8px;
  font-size: 16px;
}

/* Criteria bar */
.zf-criteria-title {
  margin: 32px 0 14px;
  color: var(--zf-ink);
  font-size: 13px;
  font-weight: 900;
  text-align: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.zf-criteria {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 27, 50, 0.03);
}

.zf-criteria article {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  padding: 16px 22px;
  border-right: 1px solid var(--zf-line);
}

.zf-criteria article:last-child {
  border-right: 0;
}

.zf-criteria svg {
  width: 36px;
  height: 36px;
  stroke: var(--zf-ink);
  stroke-width: 1.5;
  fill: none;
}

.zf-criteria h3 {
  margin: 0 0 4px;
  color: var(--zf-ink);
  font-size: 14px;
  font-weight: 800;
}

.zf-criteria p {
  margin: 0;
  color: var(--zf-copy);
  font-size: 11.5px;
  line-height: 1.4;
}

/* ==========================================================================
   05 — ZEMİN İYİLEŞTİRME
   ========================================================================== */
.zf-improvement {
  width: min(92%, 1440px);
  margin: 0 auto;
  padding: 16px 0 40px;
}

.zf-improvement-grid {
  display: grid;
  grid-template-columns: 41% 37% 22%;
  gap: 14px;
}

/* Jet Grout Card */
.zf-jet {
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 42% minmax(0, 58%);
  box-shadow: 0 2px 10px rgba(0, 27, 50, 0.03);
}

.zf-jet > div {
  position: relative;
  padding: 22px 18px 32px;
  display: flex;
  flex-direction: column;
}

.zf-jet h3 {
  margin: 0 0 8px;
  color: var(--zf-ink);
  font-size: 18px;
  font-weight: 800;
}

.zf-jet p {
  margin: 0;
  color: var(--zf-copy);
  font-size: 12px;
  line-height: 1.45;
}

.zf-jet > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #ffffff;
}

/* Improve List */
.zf-improve-list {
  display: grid;
  grid-template-rows: repeat(2, 1fr);
  gap: 10px;
}

.zf-improve-list article {
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 40% minmax(0, 60%);
  box-shadow: 0 2px 10px rgba(0, 27, 50, 0.03);
}

.zf-improve-list img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.zf-improve-list article > div {
  position: relative;
  padding: 14px 16px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.zf-improve-list h3 {
  margin: 0 0 4px;
  color: var(--zf-ink);
  font-size: 15px;
  font-weight: 800;
}

.zf-improve-list p {
  margin: 0;
  color: var(--zf-copy);
  font-size: 11.5px;
  line-height: 1.38;
}

.zf-improve-list .zf-card-arrow {
  left: auto;
  right: 16px;
  bottom: 8px;
  font-size: 16px;
}

/* Goals Aside */
.zf-goals {
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 8px;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0, 27, 50, 0.03);
}

.zf-goals h3 {
  margin: 0 0 14px;
  color: var(--zf-red);
  font-size: 12.5px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  line-height: 1.3;
}

.zf-goals ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.zf-goals li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--zf-ink);
  font-size: 12px;
  font-weight: 800;
}

.zf-goals li svg {
  width: 20px;
  height: 20px;
  stroke: var(--zf-red);
  stroke-width: 1.8;
  fill: none;
  flex-shrink: 0;
}

/* ==========================================================================
   06 — İKSA VE STABİLİZASYON
   ========================================================================== */
.zf-shoring {
  width: min(92%, 1440px);
  margin: 0 auto;
  padding: 16px 0 40px;
}

.zf-nail {
  display: grid;
  grid-template-columns: 46% minmax(0, 54%);
  gap: 14px;
  margin-bottom: 14px;
}

.zf-nail-card {
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 44% minmax(0, 56%);
  box-shadow: 0 2px 10px rgba(0, 27, 50, 0.03);
}

.zf-nail-drawing {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #ffffff;
  padding: 4px;
}

.zf-nail-info {
  position: relative;
  padding: 20px 18px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.zf-nail-info h3 {
  margin: 0 0 6px;
  color: var(--zf-ink);
  font-size: 17px;
  font-weight: 800;
}

.zf-nail-info p {
  margin: 0;
  color: var(--zf-copy);
  font-size: 12px;
  line-height: 1.45;
}

.zf-nail-info .zf-card-arrow {
  left: auto;
  right: 18px;
  bottom: 12px;
  font-size: 16px;
}

.zf-nail-panorama {
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 27, 50, 0.03);
}

.zf-nail-panorama img {
  width: 100%;
  height: 100%;
  min-height: 140px;
  object-fit: cover;
}

/* 3 Shoring Cards */
.zf-shoring-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.zf-shoring-cards article {
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 40% minmax(0, 60%);
  box-shadow: 0 2px 10px rgba(0, 27, 50, 0.03);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.zf-shoring-cards article:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(0, 27, 50, 0.07);
}

.zf-shoring-cards img {
  width: 100%;
  height: 100%;
  min-height: 110px;
  object-fit: cover;
}

.zf-shoring-cards article > div {
  position: relative;
  padding: 14px 16px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.zf-shoring-cards h3 {
  margin: 0 0 4px;
  color: var(--zf-ink);
  font-size: 15px;
  font-weight: 800;
}

.zf-shoring-cards p {
  margin: 0;
  color: var(--zf-copy);
  font-size: 11.5px;
  line-height: 1.38;
}

.zf-shoring-cards .zf-card-arrow {
  left: auto;
  right: 14px;
  bottom: 8px;
  font-size: 16px;
}

/* Çelik Destek İksa */
.zf-steel-support {
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 60px;
  align-items: center;
  box-shadow: 0 4px 18px rgba(0, 27, 50, 0.04);
}

.zf-steel-support img {
  width: 100%;
  height: 100px;
  object-fit: cover;
}

.zf-steel-support > div {
  padding: 0 28px;
}

.zf-steel-support h3 {
  margin: 0 0 6px;
  color: var(--zf-ink);
  font-size: 16px;
  font-weight: 900;
}

.zf-steel-support p {
  margin: 0;
  color: var(--zf-copy);
  font-size: 13px;
}

.zf-steel-support .zf-card-arrow {
  position: static;
  color: var(--zf-red);
  font-size: 24px;
}

/* ==========================================================================
   07 — DELIVERY STRIP
   ========================================================================== */
.zf-delivery {
  width: 100%;
  background: #faf9f6;
  border-top: 1px solid var(--zf-line);
  border-bottom: 1px solid var(--zf-line);
  padding: 32px max(32px, calc((100% - 1440px) / 2));
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)) 200px;
  gap: 20px;
  align-items: center;
}

.zf-delivery article {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  border-right: 1px solid var(--zf-line);
  padding-right: 16px;
}

.zf-delivery svg {
  width: 38px;
  height: 38px;
  stroke: var(--zf-ink);
  stroke-width: 1.5;
  fill: none;
}

.zf-delivery h3 {
  margin: 0 0 4px;
  color: var(--zf-ink);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.zf-delivery p {
  margin: 0;
  color: var(--zf-copy);
  font-size: 12px;
  line-height: 1.4;
}

.zf-delivery .zf-machine {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  background: #ffffff;
  border: 1px solid var(--zf-line);
  border-radius: 6px;
  color: var(--zf-ink);
  transition: all 0.25s ease;
}

.zf-delivery .zf-machine:hover {
  border-color: var(--zf-red);
  background: #fff;
  transform: translateX(3px);
}

.zf-delivery .zf-machine h3 {
  margin: 0;
  font-size: 12px;
  font-weight: 900;
  line-height: 1.25;
}

.zf-delivery .zf-machine span {
  color: var(--zf-red);
  font-size: 20px;
  font-weight: 700;
}

/* ==========================================================================
   08 — CTA SECTION
   ========================================================================== */
.zf-cta {
  display: grid;
  grid-template-columns: 50% minmax(0, 50%);
  background: #fbfaf7;
  overflow: hidden;
}

.zf-cta > div {
  padding: 64px max(32px, calc((100% - 1440px) / 2));
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.zf-cta h2 {
  margin: 0 0 16px;
  color: var(--zf-ink);
  font-size: clamp(24px, 2.2vw, 36px);
  font-weight: 900;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.zf-cta p {
  max-width: 580px;
  margin: 0 0 28px;
  color: var(--zf-copy);
  font-size: 15px;
  line-height: 1.55;
}

.zf-cta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: 52px;
  padding: 0 32px;
  color: #fff;
  background: var(--zf-red);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 4px;
  transition: all 0.25s ease;
  box-shadow: 0 4px 16px rgba(220, 32, 45, 0.35);
}

.zf-cta a:hover {
  background: #bd1b26;
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(220, 32, 45, 0.45);
}

.zf-cta a span {
  font-size: 20px;
  font-weight: 300;
  transition: transform 0.25s ease;
}

.zf-cta a:hover span {
  transform: translateX(4px);
}

.zf-cta > img {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
  object-position: center 50%;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1100px) {
  .zf-intro {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .zf-deep-grid,
  .zf-improvement-grid,
  .zf-nail {
    grid-template-columns: 1fr;
  }
  .zf-fore {
    grid-template-columns: 1fr 1fr;
  }
  .zf-fore-blueprint {
    display: none;
  }
  .zf-criteria {
    grid-template-columns: 1fr;
  }
  .zf-criteria article {
    border-right: 0;
    border-bottom: 1px solid var(--zf-line);
  }
  .zf-criteria article:last-child {
    border-bottom: 0;
  }
  .zf-shoring-cards {
    grid-template-columns: 1fr;
  }
  .zf-delivery {
    grid-template-columns: repeat(2, 1fr);
  }
  .zf-delivery article:nth-child(2) {
    border-right: 0;
  }
  .zf-delivery .zf-machine {
    grid-column: 1 / -1;
  }
  .zf-cta {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .zf-process {
    grid-template-columns: repeat(2, 1fr);
  }
  .zf-process > div:nth-child(2)::after {
    display: none;
  }
  .zf-intro nav {
    grid-template-columns: 1fr;
    height: auto;
  }
  .zf-intro nav a {
    padding: 16px 0;
    border-left: 0;
    border-bottom: 1px solid var(--zf-line);
  }
  .zf-fore {
    grid-template-columns: 1fr;
  }
  .zf-deep-list article,
  .zf-jet,
  .zf-improve-list article,
  .zf-nail-card,
  .zf-shoring-cards article {
    grid-template-columns: 1fr;
  }
  .zf-steel-support {
    grid-template-columns: 1fr;
  }
  .zf-steel-support img {
    height: 140px;
  }
  .zf-steel-support > div {
    padding: 20px;
  }
  .zf-delivery {
    grid-template-columns: 1fr;
  }
  .zf-delivery article {
    border-right: 0;
    border-bottom: 1px solid var(--zf-line);
    padding-bottom: 16px;
  }
}