/* ==========================================================================
   İvme İleri Savunma Teknolojileri — site stylesheet

   Tema ve tipografi müşteri onayıyla sabitlendi:
     renk       "Grafit — Turuncu"  (koyu / turuncu #F26A1B)
     tipografi  "Kondens"           (Barlow Condensed + Barlow)

   Seçilmeyen temalar, ikinci font eşleşmesi ve görünüm seçici paneli
   kaldırıldı. Geri istenirse commit geçmişinden alınabilir
   (`git log -S 'data-theme'`).
   ========================================================================== */

:root {
  /* Yapı */
  --shell: 1360px;
  --gutter: 48px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);

  /* Tipografi */
  --head-font: "Barlow Condensed", "Arial Narrow", sans-serif;
  --body-font: "Barlow", system-ui, -apple-system, "Segoe UI", sans-serif;
  --head-tracking: 0.01em;
  --head-line: 0.95;

  /* Renk */
  --bg: #131313;
  --bg-rgb: 19, 19, 19;
  --surface: #1b1b1b;
  --surface-2: #171717;
  --line: #2a2a2a;
  --line-2: #454545;
  --ink: #f2f0ed;
  --ink-2: #d2cfca;
  /* --muted eskiden #9c9893 idi: AA'yi geciyordu (6.48:1) ama gövde
     paragraflarinin ana rengi oldugu icin AAA esiginin (7:1) altinda
     kaliyordu. #b0aca6 ile --bg 8.23:1, --surface 7.63:1, --surface-2
     7.94:1 — ucunde de AAA. Paragraflari kalinlastirmak yerine renk
     yukseltildi; uzun metinde 400 agirlik daha okunur. */
  --muted: #b0aca6;
  /* --faint eskiden #6b6862 idi: zemine karşı yalnızca 3.35:1 veriyordu ve
     11–15px arası küçük metinlerde (etiketler, künye, spec dt) kullanıldığı
     için WCAG AA'nın (4.5:1) altında kalıyordu. #8b877f ile 5.19:1 / 5.14:1
     oldu; --muted (6.48:1) ile arasındaki hiyerarşi korunuyor. */
  --faint: #8b877f;
  --accent: #f26a1b;
  --accent-contrast: #131313;

  /* Biçim */
  --btn-r: 0px;
  --card-r: 8px;
  --hero-scrim: 0.5;

  --header-bg: rgba(19, 19, 19, 0.92);
  --header-bline: 2px solid var(--accent);
  --header-shadow: none;
}

/* --- Base --------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body-font);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

::selection {
  background: var(--accent);
  color: var(--accent-contrast);
}

h1,
h2,
h3 {
  font-family: var(--head-font);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--head-tracking);
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0;
}

.shell {
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.rule {
  width: 52px;
  height: 4px;
  background: var(--accent);
  flex: none;
}

.eyebrow {
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.section-head h2 {
  font-size: clamp(36px, 4.5vw, 68px);
  line-height: 1;
}

.section-head p {
  max-width: 640px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--muted);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 12px 20px;
  font-weight: 600;
}

.skip-link:focus {
  left: 8px;
  top: 8px;
}


/* --- Buttons ------------------------------------------------------------ */

.btn {
  --btn-bg: var(--accent);
  --btn-fg: var(--accent-contrast);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 16px 32px;
  border: 1px solid transparent;
  border-radius: var(--btn-r);
  transition: background-color 0.25s, color 0.25s, border-color 0.25s;
}

.btn:hover {
  background: var(--ink);
  color: var(--bg);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-2);
  padding: 16px 34px;
}

.btn--ghost:hover {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn--outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
  padding: 10px 24px;
  font-size: 13px;
  letter-spacing: 0.14em;
}

.btn--outline:hover {
  background: var(--accent);
  color: var(--accent-contrast);
}

.link-more {
  align-self: flex-start;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 4px;
}

.cta-inline {
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* --- Header ------------------------------------------------------------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding: 12px 32px;
  background: var(--header-bg);
  border-bottom: var(--header-bline);
  box-shadow: var(--header-shadow);
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand:hover {
  color: inherit;
}

.brand img {
  height: 46px;
  width: auto;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
  gap: 2px;
}

.brand__name {
  font-family: var(--head-font);
  font-weight: 700;
  font-size: 23px;
  letter-spacing: 0.08em;
}

.brand__tagline {
  font-size: 10.5px;
  letter-spacing: 0.24em;
  color: var(--muted);
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.site-nav a {
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
}

/* .btn hariç: aria-current'in özgüllüğü (0,2,1) .btn--outline:hover'ı (0,2,0)
   yeniyordu, İletişim sayfasında buton altın zemin üzerine altın yazı
   oluyordu. Buton zaten CTA olarak ayrışıyor; aria-current ekran
   okuyucular için markup'ta kalıyor. */
.site-nav a[aria-current="page"]:not(.btn) {
  color: var(--accent);
}

.lang {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--faint);
}

/* Dil linkleri .site-nav a kurallarını devralmasın. */
.lang a {
  font-size: 12px;
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: none;
}

.lang__active {
  color: var(--ink);
}

a.lang__active {
  pointer-events: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: 1px solid var(--line-2);
  border-radius: var(--btn-r);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin-inline: auto;
  width: 20px;
  background: var(--ink);
  transition: transform 0.25s, opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero --------------------------------------------------------------- */

.hero {
  position: relative;
  height: 100vh;
  min-height: 660px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.hero__media,
.hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background: rgb(var(--bg-rgb));
  opacity: var(--hero-scrim);
}

.hero__fade {
  position: absolute;
  inset: auto 0 0 0;
  height: 38%;
  background: linear-gradient(180deg, rgba(var(--bg-rgb), 0), var(--bg));
}

/* max-width + auto margin: hero metni, altındaki .shell içeriğiyle aynı sol
   hizada başlasın. Öncesinde hero 48px'ten, içerik 88px'ten başlıyordu. */
.hero__inner {
  position: relative;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 0 var(--gutter) 12vh;
  display: flex;
  flex-direction: column;
  gap: 26px;
  align-items: flex-start;
}

.hero__rule {
  width: 68px;
  height: 4px;
  background: var(--accent);
  transform-origin: left;
  animation: grow-x 0.8s 0.1s var(--ease) both;
}

.hero h1 {
  font-size: clamp(48px, 8.5vw, 138px);
  line-height: var(--head-line);
  animation: fade-up 0.9s 0.15s var(--ease) both;
}

.hero__lede {
  max-width: 580px;
  font-size: 18px;
  line-height: 1.6;
  color: var(--ink-2);
  animation: fade-up 0.9s 0.3s var(--ease) both;
}

.hero .btn {
  animation: fade-up 0.9s 0.45s var(--ease) both;
}

.hero__arrow {
  font-size: 16px;
  display: inline-block;
  animation: bounce-y 1.8s 1.2s infinite;
}

/* --- Categories --------------------------------------------------------- */

.categories {
  padding-block: 110px 40px;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

/* Ana sayfada dört ana ürün var. */
.card-grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.card-grid--4 .card__media {
  height: 240px;
}

.card-grid--4 .card__body {
  padding: 22px;
}

.card-grid--4 .card__body h3 {
  font-size: 25px;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--card-r);
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.card:hover {
  color: inherit;
  border-color: var(--accent);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
  transform: translateY(-4px);
}

.card__media {
  height: 320px;
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card__body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card__body h3 {
  font-size: 30px;
}

.card__body p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
}

/* --- Features ----------------------------------------------------------- */

.features {
  padding-block: 80px;
  display: flex;
  flex-direction: column;
  gap: 100px;
}

.feature {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 64px;
  align-items: center;
}

.feature--flip {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
}

.feature--flip .feature__media {
  order: 2;
}

.feature__media {
  height: 460px;
}

.feature__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--card-r);
}

.feature__body {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.feature__body h3 {
  font-size: clamp(32px, 3.4vw, 46px);
  line-height: 1;
}

.feature__body p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
}

/* --- CTA band ----------------------------------------------------------- */

.cta {
  border-block: 1px solid var(--line);
  background: var(--surface-2);
}

.cta__inner {
  padding: 90px var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 26px;
  text-align: center;
}

.cta h2 {
  font-size: clamp(32px, 4vw, 58px);
  line-height: 1.05;
  max-width: 820px;
}

.cta p {
  max-width: 560px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
}

.cta__actions {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

/* --- Footer ------------------------------------------------------------- */

.site-footer {
  padding-block: 70px 36px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 48px;
}

.site-footer h2 {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--faint);
  font-family: var(--body-font);
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-col a,
.footer-col span {
  font-size: 14px;
  color: var(--ink-2);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand img {
  height: 60px;
  width: auto;
  align-self: flex-start;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 300px;
}

.legal {
  border-top: 1px solid var(--line);
}

.legal__inner {
  padding: 22px var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--faint);
}

.legal__links {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}



/* --- Alt sayfa hero ----------------------------------------------------- */

/* Alt sayfa hero'ları ana sayfadaki tam ekran hero'dan belirgin biçimde
   alçak: sayfanın işi içerik, hero yalnızca başlığı taşıyor. max-height
   büyük ekranlarda gereksiz büyümeyi kesiyor. */
.page-hero {
  position: relative;
  height: 38vh;
  min-height: 300px;
  max-height: 400px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.page-hero__media,
.page-hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero__scrim {
  position: absolute;
  inset: 0;
  background: rgb(var(--bg-rgb));
  opacity: 0.6;
}

.page-hero__fade {
  position: absolute;
  inset: auto 0 0 0;
  height: 45%;
  background: linear-gradient(180deg, rgba(var(--bg-rgb), 0), var(--bg));
}

.page-hero__inner {
  position: relative;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 0 var(--gutter) 44px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
}

.page-hero__eyebrow {
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-hero__rule {
  width: 60px;
  height: 4px;
  background: var(--accent);
  transform-origin: left;
  animation: grow-x 0.8s 0.1s var(--ease) both;
}

.page-hero h1 {
  font-size: clamp(36px, 5.2vw, 76px);
  line-height: var(--head-line);
  animation: fade-up 0.9s 0.15s var(--ease) both;
}

/* Görselsiz başlık bloğu. Hero'lu sayfalarla aynı dikey ritmi tutturmak için
   toplam yüksekliği onlara yakın: sabit header 64px + bu blok. */
.page-head {
  padding-block: 150px 36px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
}

.page-head h1 {
  font-size: clamp(36px, 5.2vw, 76px);
  line-height: var(--head-line);
  animation: fade-up 0.9s 0.15s var(--ease) both;
}

.page-head p {
  max-width: 620px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--muted);
}

/* 404 sayfasindaki "ana sayfaya dön" düğmesi. */
.page-head__cta {
  margin-top: 26px;
}


/* İki kareli varyant — dedektör bölümü. */
.product-grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* --- Sertifika galerisi ------------------------------------------------- */

.cert-section {
  padding-block: 80px 20px;
  display: flex;
  flex-direction: column;
  gap: 44px;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.cert-card {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cert-card__link {
  position: relative;
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--card-r);
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s;
}

.cert-card__link:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.cert-card__link img {
  width: 100%;
  height: auto;
  display: block;
}

.cert-card__zoom {
  position: absolute;
  inset: auto 0 0 0;
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
  color: var(--accent-contrast);
  background: var(--accent);
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.25s, transform 0.25s;
}

.cert-card__link:hover .cert-card__zoom,
.cert-card__link:focus-visible .cert-card__zoom {
  opacity: 1;
  transform: none;
}

.cert-card__caption {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cert-card__std {
  font-family: var(--head-font);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: var(--head-tracking);
  color: var(--ink);
}

.cert-card__name {
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--muted);
}

.cert-card__no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--faint);
}

/* --- Sertifika modalı --------------------------------------------------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: 24px;
}

.lightbox[hidden] {
  display: none;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.86);
  backdrop-filter: blur(3px);
}

.lightbox__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: min(100%, 980px);
  max-height: 100%;
  animation: fade-up 0.28s var(--ease) both;
}

.lightbox__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.lightbox__title {
  font-family: var(--head-font);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: var(--head-tracking);
  text-transform: uppercase;
  color: var(--ink);
}

.lightbox__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lightbox__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: var(--btn-r);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.lightbox__btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.lightbox__btn--icon {
  width: 40px;
  padding: 0;
  font-size: 15px;
}

/* Taramalar beyaz zeminli; sahne de beyaz olsun ki belge kesilmiş görünmesin. */
.lightbox__stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
  background: #fff;
  border-radius: var(--card-r);
  overflow: hidden;
}

.lightbox__stage img {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - 190px);
  width: auto;
  height: auto;
  object-fit: contain;
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  font-size: 26px;
  line-height: 1;
  color: var(--ink);
  background: rgba(19, 19, 19, 0.72);
  border: 1px solid var(--line-2);
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
}

.lightbox__nav:hover {
  color: var(--accent-contrast);
  background: var(--accent);
}

.lightbox__nav--prev {
  left: 12px;
}

.lightbox__nav--next {
  right: 12px;
}

.lightbox__count {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--faint);
  text-align: center;
}

@media (max-width: 820px) {
  .lightbox {
    padding: 12px;
  }

  .lightbox__title {
    font-size: 19px;
  }

  .lightbox__stage img {
    max-height: calc(100vh - 210px);
  }

  .lightbox__nav {
    width: 40px;
    height: 40px;
    font-size: 22px;
  }
}

/* --- Hukuki metin sayfaları --------------------------------------------- */

.legal-head p {
  max-width: 720px;
}

.legal-doc {
  padding-block: 20px 100px;
  max-width: 820px;
  margin-inline: auto;
}

.legal-doc section {
  padding-block: 30px;
  border-top: 1px solid var(--line);
}

.legal-doc h2 {
  font-size: clamp(21px, 2.1vw, 27px);
  line-height: 1.2;
  margin-bottom: 16px;
}

.legal-doc p,
.legal-doc li {
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink-2);
}

.legal-doc p + p {
  margin-top: 14px;
}

.legal-doc ul {
  margin: 14px 0 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.legal-doc li::marker {
  color: var(--accent);
}

.legal-doc a {
  color: var(--accent);
  border-bottom: 1px solid transparent;
}

.legal-doc a:hover {
  border-bottom-color: var(--accent);
}

.legal-doc code {
  font-size: 0.92em;
  padding: 2px 6px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.legal-doc .spec-list {
  margin-top: 16px;
}

.legal-doc__meta {
  font-size: 12px !important;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint) !important;
}

/* Kuruma özel bilgi bekleyen alanlar — yayına almadan önce doldurulmalı. */


/* --- Giriş paragrafı / iki kolon metin ---------------------------------- */

.page-intro {
  padding-block: 70px 0;
}

.page-intro p {
  max-width: 760px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink-2);
}

/* Üst boşluk page-intro ile aynı (70px) — Hakkımızda'da hero'dan sonra
   doğrudan bu blok geliyor, diğer sayfalarda araya page-intro giriyordu ve
   hero altındaki boşluk sayfadan sayfaya kayıyordu. */
.split-prose {
  padding-block: 70px 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.split-prose h2 {
  font-size: clamp(30px, 3.6vw, 54px);
  line-height: 1.05;
}

.split-prose__body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.split-prose__body p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-2);
}

.split-prose__body p + p {
  color: var(--muted);
}

/* --- Numaralı kartlar (sertifikalar) ------------------------------------ */

.num-section {
  padding-block: 0 90px;
  display: flex;
  flex-direction: column;
  gap: 44px;
  scroll-margin-top: 110px;
}

.num-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.num-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--card-r);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.3s;
}

.num-card:hover {
  border-color: var(--accent);
}

.num-card__n {
  font-family: var(--head-font);
  font-weight: 700;
  font-size: 44px;
  color: var(--accent);
  line-height: 1;
}

.num-card h3 {
  font-size: 26px;
}

.num-card p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--muted);
}

/* --- Ürün bölümleri ----------------------------------------------------- */



.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.product-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--card-r);
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.product-card:hover {
  border-color: var(--accent);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
  transform: translateY(-4px);
}

.product-card__media {
  height: 300px;
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.product-card__body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.product-card h3 {
  font-size: 28px;
}

.product-card p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
  flex: 1;
}


/* --- Ana ürün bölümü ----------------------------------------------------
   Kendi ürettiğimiz ürün aileleri. Her biri: genel açıklama → görsel +
   teknik özellikler → çeşitler. Tedarik edilen ürünlerden görsel olarak
   ayrışması kasıtlı: numaralı, geniş, detaylı.
   ----------------------------------------------------------------------- */

/* Alt boşluk 0'dı: sağ kolondaki link-more'un alt çizgisi bir sonraki
   bölümün border-top'una değiyordu. */
.main-product {
  padding-block: 84px 72px;
  display: flex;
  flex-direction: column;
  gap: 44px;
  scroll-margin-top: 110px;
  border-top: 1px solid var(--line);
}

.main-product:last-of-type {
  padding-bottom: 96px;
}

/* Ürün grid'i içindeki son öğe zaten boşluklu; link alt çizgisi ile
   bölüm çizgisi arasında en az bir satır kalsın. */
.product-lead .link-more {
  margin-top: 6px;
}

.main-product__index {
  font-family: var(--head-font);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.24em;
  color: var(--accent);
}

.product-lead {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

/* Ürün kareleri farklı oranlarda (kare, 4:3, dikey). cover kullanılınca
   uzun üniteler kırpılıyordu; contain ile hepsi tam sığıyor. */
.product-lead__media {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--card-r);
  overflow: hidden;
}

.product-lead__media img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.subhead {
  font-family: var(--head-font);
  font-weight: 700;
  font-size: 22px;
  text-transform: uppercase;
  letter-spacing: var(--head-tracking);
  margin: 0 0 18px;
}

.spec-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.spec-list > div {
  display: grid;
  grid-template-columns: minmax(130px, 38%) 1fr;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.spec-list dt {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

.spec-list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-2);
}


/* --- Tedarik edilen ürünler ---------------------------------------------
   Kasten sade: kendi ürünlerimizle karıştırılmaması için sadece görsel +
   isim, rozet yok, ürün başına CTA yok, ayrı zeminde.
   ----------------------------------------------------------------------- */

.supply {
  border-top: 1px solid var(--line);
  background: var(--surface-2);
  scroll-margin-top: 110px;
}

.supply__inner {
  padding-block: 84px 96px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.tag {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--line-2);
  color: var(--ink-2);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
}

.tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line-2);
}

.supply-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 20px;
}

.supply-tile {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--card-r);
  overflow: hidden;
  transition: border-color 0.3s;
}

.supply-tile:hover {
  border-color: var(--accent);
}

.supply-tile__media {
  aspect-ratio: 1;
  overflow: hidden;
}

.supply-tile__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.8);
  transition: filter 0.3s, transform 0.4s;
}

.supply-tile:hover .supply-tile__media img {
  filter: none;
  transform: scale(1.04);
}

.supply-tile__name {
  padding: 15px 18px;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}

/* --- Şerit CTA ---------------------------------------------------------- */

.band {
  border-top: 1px solid var(--line);
  background: var(--surface-2);
}

.band__inner {
  padding: 80px var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.band h2 {
  font-size: clamp(28px, 3.4vw, 48px);
  line-height: 1.05;
  max-width: 640px;
}

.band .btn {
  flex: none;
}

/* --- İletişim: form + bilgi -------------------------------------------- */

.contact-layout {
  padding-block: 40px 90px;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.supply-note {
  margin-top: 28px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--faint);
}

.mail-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.mail-cta h2 {
  font-size: clamp(27px, 3vw, 40px);
  line-height: 1.1;
}

.mail-cta p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 56ch;
}

.subject-list {
  width: 100%;
  margin-block: 8px 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.subject-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
  padding: 16px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--card-r);
  transition: border-color 0.25s, background-color 0.25s, transform 0.25s;
}

.subject-btn:hover {
  color: inherit;
  background: var(--surface-2);
  border-color: var(--accent);
  transform: translateX(3px);
}

.subject-btn__label {
  font-family: var(--head-font);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: var(--head-tracking);
  text-transform: uppercase;
  color: var(--ink);
}

.subject-btn__go {
  flex: none;
  font-size: 15px;
  color: var(--accent);
}

.mail-cta__direct {
  font-size: 15px;
  color: var(--faint);
}

.mail-cta__address {
  color: var(--accent);
  font-weight: 600;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  white-space: nowrap;
}

.mail-cta__note {
  font-size: 13px !important;
  color: var(--faint) !important;
}

.contact-aside {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.contact-list {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-list dt {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 6px;
}

.contact-list dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-2);
}

.location {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 28px;
  background:
    linear-gradient(
      160deg,
      rgba(var(--bg-rgb), 0) 0%,
      rgba(var(--bg-rgb), 0.55) 100%
    ),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--card-r);
}

.location__pin {
  width: 24px;
  height: 24px;
  margin-bottom: 6px;
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  background: var(--accent);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
}

.location__label {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--faint);
}

.location__addr {
  font-family: var(--head-font);
  font-size: 25px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: var(--head-tracking);
  color: var(--ink);
}

.location__cta {
  margin-top: 10px;
  padding: 14px 26px;
}

.location__note {
  font-size: 12px;
  line-height: 1.5;
  color: var(--faint);
  max-width: 38ch;
}

/* --- Reveal on scroll --------------------------------------------------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.6s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* --- Animations --------------------------------------------------------- */

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes grow-x {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@keyframes bounce-y {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(6px);
  }
}

/* --- Responsive --------------------------------------------------------- */

@media (max-width: 1100px) {
  :root {
    --gutter: 32px;
  }

  .card-grid,
  .card-grid--4,
  .cert-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .features {
    gap: 72px;
  }

  .feature,
  .feature--flip {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .feature--flip .feature__media {
    order: 0;
  }

  .feature__media {
    height: 380px;
  }

  .site-footer {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
  }

  .product-grid,
  .num-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-prose,
  .contact-layout,
  .product-lead {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
  }

  .product-lead__media {
    height: 340px;
  }
}

@media (max-width: 820px) {
  :root {
    --gutter: 22px;
  }

  .site-header {
    padding: 10px 22px;
  }

  .brand img {
    height: 38px;
  }

  /* 390px'te iki satıra kırılıyordu; tek satırda kalacak kadar sıkıştır. */
  .brand__tagline {
    font-size: 9.5px;
    letter-spacing: 0.16em;
    white-space: nowrap;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    inset: 100% 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px 22px 26px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
  }

  /* Dokunma hedefi en az 44px olsun — düz metin linkleri 16px kalıyordu. */
  .site-nav a:not(.btn) {
    display: flex;
    align-items: center;
    min-height: 44px;
  }

  .site-nav .lang {
    min-height: 44px;
  }

  .site-nav .btn {
    margin-top: 10px;
    min-height: 44px;
    justify-content: center;
  }

  .site-nav.is-open {
    display: flex;
  }

  .hero {
    height: auto;
    min-height: 0;
    padding-top: 140px;
  }

  .hero__inner {
    padding-bottom: 90px;
    gap: 22px;
  }

  .hero__media {
    position: absolute;
  }

  .categories {
    padding-top: 80px;
  }

  .card-grid,
  .card-grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .cert-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .product-lead__media {
    aspect-ratio: 1 / 1;
    padding: 12px;
  }

  .card__media {
    height: 260px;
  }

  .cta__inner {
    padding: 64px var(--gutter);
  }

  .site-footer {
    grid-template-columns: minmax(0, 1fr);
  }

  .legal__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-hero {
    height: auto;
    min-height: 0;
    max-height: none;
    padding-top: 128px;
  }

  .page-hero__inner {
    padding-bottom: 36px;
  }

  .page-head {
    padding-block: 118px 26px;
  }

  .product-grid,
  .num-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .product-card__media {
    height: 260px;
  }

  .band__inner {
    padding: 56px var(--gutter);
  }

  .product-lead__media {
    height: 260px;
  }

  .supply-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .spec-list > div {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}