/* ============================================
   SURTEK İNŞAAT & GAYRİMENKUL — Kurumsal Site
   Palet, firmanın kendi binalarından türetildi:
   beyaz cephe · antrasit tabela · kiremit panel
   ============================================ */

:root {
  --bg: #F6F6F4;
  --surface: #FFFFFF;
  --ink: #1E2226;
  --antrasit: #24282D;
  --antrasit-2: #2E343A;
  --kiremit: #BF5B3A;
  --kiremit-koyu: #A04A2D;
  --gri: #6E767D;
  --cizgi: #E4E4E0;
  --beyaz: #FFFFFF;

  --font-display: "Archivo", "Segoe UI", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;

  --container: 1200px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 4px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  overflow-x: clip; /* tam genişlik slider'ın kaydırma çubuğu payı taşmasın */
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

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

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

/* ---------- Tabela (imza öğesi) ---------- */
/* Binaların tepesindeki gerçek tabelanın motifi:
   antrasit bant üzerine beyaz blok harfler */

.tabela {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  background: var(--antrasit);
  color: var(--beyaz);
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: .08em;
  padding: .45rem .9rem .45rem .7rem;
  text-transform: uppercase;
  line-height: 1;
}

.tabela::before {
  content: "";
  width: .55em;
  height: .55em;
  background: var(--kiremit);
  flex: none;
}

/* ---------- Buzlu cam malzemesi ----------
   Referans: github.com/aakhalidhruv28/Liquid-Glass-Effect
   Cam şeffaf kalır (alpha .15), rengi arkadaki içerik verir;
   beyaz hairline + iç halka cam kenarını çizer. Koyu zemin
   üstünde metin beyazdır; cam açık içeriğin üstüne kayınca
   (.is-scrolled) gövde koyulaşır, metin mürekkebe döner. */

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

.header {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 50;
  padding-top: .9rem;
  pointer-events: none;
}

.header__in {
  max-width: var(--container);
  margin-inline: auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.header a, .header button { pointer-events: auto; }

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

/* Kurumsal logo: altın "S" kule amblemi + beyaz SURTEK yazısı.
   Beyaz/altın olduğu için daima koyu zemin üzerinde durur:
   ana sayfada hero fotoğrafı, alt sayfalarda antrasit bant, footer'da antrasit. */

.brand__img {
  height: clamp(60px, 8vw, 76px);
  width: auto;
  display: block;
  filter: drop-shadow(0 2px 12px rgba(0, 0, 0, .35));
}

.footer .brand { display: inline-flex; }

.footer .brand__img {
  height: 92px;
  filter: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: .5rem;
}

.nav a {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  color: var(--beyaz);
  text-shadow: 0 1px 12px rgba(0, 0, 0, .25);
  padding: .5rem .95rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, .15);
  -webkit-backdrop-filter: blur(12px) saturate(170%);
  backdrop-filter: blur(12px) saturate(170%);
  border: 1px solid rgba(255, 255, 255, .35);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, .28),
    0 8px 32px rgba(0, 0, 0, .18);
  transition: background .25s ease, color .25s ease, border-color .25s ease;
}

.nav a:hover { background: rgba(255, 255, 255, .28); }

.nav a[aria-current="page"] { background: rgba(255, 255, 255, .32); }

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .nav a { background: rgba(30, 34, 38, .5); }
}

.nav__tel {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  white-space: nowrap;
  background: var(--kiremit) !important;
  color: var(--beyaz) !important;
  letter-spacing: .05em !important;
  border-color: rgba(255, 255, 255, .35) !important;
}

.nav__tel:hover { background: var(--kiremit-koyu) !important; }

.menu-btn {
  display: none;
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: 999px;
  padding: .7rem .85rem; /* ≥44px dokunma alanı */
  cursor: pointer;
  background: rgba(255, 255, 255, .15);
  -webkit-backdrop-filter: blur(12px) saturate(170%);
  backdrop-filter: blur(12px) saturate(170%);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, .28),
    0 8px 32px rgba(0, 0, 0, .18);
  transition: background .25s ease;
}

.menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--beyaz);
  margin: 4px 0;
}

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

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  color: var(--beyaz);
  isolation: isolate;
}

.hero__img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(30, 34, 38, .55) 0%, rgba(30, 34, 38, 0) 28%),
    linear-gradient(6deg, rgba(30, 34, 38, .82) 0%, rgba(30, 34, 38, .25) 45%, rgba(30, 34, 38, 0) 70%);
}

.hero__in {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: 7.5rem var(--gutter) clamp(4.5rem, 10vh, 6.5rem);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 6.5vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -.015em;
  margin: 0 0 1.25rem;
  max-width: 14ch;
}

.hero__sub {
  max-width: 46ch;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: rgba(255, 255, 255, .88);
  margin: 0 0 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
}

.hero__istirak {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1.1rem;
  margin: 0;
  padding-inline: var(--gutter);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: .55rem;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .78);
  text-align: center;
}

.tabela--mini {
  font-size: .7rem;
  padding: .32rem .55rem .32rem .45rem;
  letter-spacing: .1em;
}

/* ---------- Butonlar ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-body);
  font-size: .85rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: .85rem 1.5rem;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.btn--primary {
  background: var(--kiremit);
  color: var(--beyaz);
}

.btn--primary:hover { background: var(--kiremit-koyu); }

.btn--ghost {
  color: var(--beyaz);
  text-shadow: 0 1px 12px rgba(0, 0, 0, .25);
  background: rgba(255, 255, 255, .15);
  -webkit-backdrop-filter: blur(12px) saturate(170%);
  backdrop-filter: blur(12px) saturate(170%);
  border-color: rgba(255, 255, 255, .35);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, .28),
    0 8px 32px rgba(0, 0, 0, .18);
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .btn--ghost { background: rgba(30, 34, 38, .5); }
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, .28);
  border-color: rgba(255, 255, 255, .6);
}

.btn--dark {
  background: var(--antrasit);
  color: var(--beyaz);
}

.btn--dark:hover { background: var(--antrasit-2); }

/* ---------- Bölüm başlıkları ---------- */

.section { padding: clamp(4rem, 9vw, 6.5rem) 0; }

.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section__head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  margin: .9rem 0 0;
  max-width: 22ch;
}

.section__link {
  flex: none;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--kiremit);
  white-space: nowrap;
  padding-bottom: .35rem;
}

.section__link:hover { color: var(--kiremit-koyu); }

/* ---------- Projeler ---------- */

.projeler { background: var(--surface); }

/* Sur Yapı tarzı proje slider'ı (ana sayfa).
   Sırrı: ölçek yok — aktif kartın İÇERİK YÜKSEKLİĞİ büyük,
   komşularınki kısa; geçişte yükseklik animasyonlanır,
   alt kenarlar hizalı kalır (suryapi.com.tr'den ölçüldü:
   aktif 400px / pasif 350px, genişlik sabit, transition: all) */

:root {
  --kart-h: 340px;
  --kart-h-kucuk: 290px;
}

@media (min-width: 720px) {
  :root { --kart-h: 420px; --kart-h-kucuk: 320px; }
}

@media (min-width: 1100px) {
  :root { --kart-h: 460px; --kart-h-kucuk: 300px; }
}

.proje-slider {
  overflow: hidden;
  margin-inline: calc(50% - 50vw);
}

.proje-slide { height: var(--kart-h); }

.proje-slide__link {
  display: flex;
  align-items: flex-end;
  height: 100%;
}

.proje-slide__icerik {
  position: relative;
  width: 100%;
  height: var(--kart-h-kucuk);
  overflow: hidden;
  transition: height .35s ease;
}

.swiper-slide-active .proje-slide__icerik { height: var(--kart-h); }

.proje-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 32%;
}

.proje-chip {
  position: absolute;
  top: 0;
  left: 0;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--surface);
  padding: .7rem 1.3rem;
}

.proje-slider__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.35rem;
}

.proje-slider__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  margin: 0 0 .3rem;
}

.proje-slider__loc {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gri);
}

.proje-slider__loc .icon { width: 1rem; height: 1rem; }

.proje-slider__progress {
  position: relative;
  flex: 1;
  height: 2px;
  margin-inline: 1.75rem;
  background: var(--cizgi);
  overflow: hidden;
}

.proje-slider__progress .swiper-pagination-progressbar-fill {
  position: absolute;
  inset: 0;
  transform-origin: left;
  background: var(--ink);
}

.proje-slider__nav { display: flex; align-items: center; gap: .6rem; }

.slider-btn {
  width: 64px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  border: 1px solid #D9D9D6;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.slider-btn:hover {
  background: var(--antrasit);
  border-color: var(--antrasit);
  color: var(--beyaz);
}

.slider-btn .icon { width: 1.15rem; height: 1.15rem; }

.proje-slider__tumu {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin-left: .9rem;
  font-size: .95rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.proje-slider__tumu:hover { color: var(--kiremit); }

.proje-slider__tumu .icon { width: 1.1rem; height: 1.1rem; }

/* Proje kartları (projeler sayfası) */

.proje-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.proje-card {
  margin: 0; /* figure'ın tarayıcı varsayılan marjını sıfırla */
  background: var(--surface);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(30, 34, 38, .06);
  transition: transform .3s ease, box-shadow .3s ease;
}

.proje-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 44px rgba(30, 34, 38, .14);
}

.proje-card__media {
  position: relative;
  display: block;
  overflow: hidden;
}

.proje-card__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center 32%;
  transition: transform .6s ease;
}

.proje-card:hover .proje-card__media img { transform: scale(1.05); }

.proje-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding: 1rem 1.2rem 1.1rem;
}

.proje-card__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  margin: 0;
}

.proje-card__loc {
  display: block;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gri);
  margin-top: .1rem;
}

.proje-card__tag {
  flex: none;
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--beyaz);
  background: var(--kiremit);
  padding: .3rem .6rem;
  border-radius: 3px;
}

/* ---------- Rakamlar ---------- */

.rakamlar {
  background: var(--antrasit);
  color: var(--beyaz);
}

.rakamlar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.rakam { border-top: 3px solid var(--kiremit); padding-top: 1.25rem; }

.rakam__deger {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1;
}

.rakam__etiket {
  margin-top: .5rem;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .72);
}

/* ---------- Hakkımızda önizleme ---------- */

.hakkimizda__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.hakkimizda__grid h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  line-height: 1.12;
  letter-spacing: -.01em;
  margin: .9rem 0 0;
}

.hakkimizda__text p { margin: 0 0 1.15rem; color: #3A4046; }

.hakkimizda__text .btn { margin-top: .5rem; }

/* ---------- Başkan kartı ---------- */

.baskan {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  background: var(--surface);
  border-left: 3px solid var(--kiremit);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0 1.75rem;
  box-shadow: 0 1px 0 var(--cizgi);
}

.baskan__foto {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 20%;
  flex: none;
}

.baskan__ad {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  margin: 0;
}

.baskan__unvan {
  margin: .2rem 0 0;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gri);
}

/* ---------- İkonlar ---------- */

.icon {
  width: 1.15em;
  height: 1.15em;
  flex: none;
}

.sosyal {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}

/* ---------- İletişim CTA ---------- */

.cta {
  background:
    linear-gradient(0deg, rgba(30, 34, 38, .88), rgba(30, 34, 38, .88)),
    url("../img/hero-02.jpg") center 30% / cover no-repeat;
  color: var(--beyaz);
  text-align: center;
}

.cta h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 4vw, 3rem);
  margin: 1rem 0 .75rem;
}

.cta p {
  max-width: 52ch;
  margin: 0 auto 2rem;
  color: rgba(255, 255, 255, .85);
}

.cta__tel {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  letter-spacing: .02em;
  color: var(--beyaz);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 1.75rem;
}

.cta__tel:hover { color: var(--kiremit); }

.cta__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: .9rem;
}

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

.footer {
  background: var(--antrasit);
  color: rgba(255, 255, 255, .78);
  padding: 3.5rem 0 2rem;
  font-size: .9rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.footer__grid h3 {
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--beyaz);
  margin: 0 0 1rem;
}

.footer__grid p { margin: 0 0 .5rem; }

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

.footer__grid a:hover { color: var(--kiremit); }

.footer__brandnote { margin-top: 1rem; max-width: 34ch; }

.footer__bottom {
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: .8rem;
  color: rgba(255, 255, 255, .5);
}

/* ---------- Alt sayfa başlığı ---------- */

.sayfa-basi {
  background: var(--antrasit);
  color: var(--beyaz);
  padding: calc(76px + clamp(2.5rem, 6vw, 4rem)) 0 clamp(2.5rem, 6vw, 4rem);
}

.sayfa-basi h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -.01em;
  margin: .9rem 0 0;
}

.sayfa-basi .lead {
  margin: .85rem 0 0;
  max-width: 58ch;
  color: rgba(255, 255, 255, .75);
}

/* ---------- Değerler (Hakkımızda) ---------- */

.deger-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.deger {
  border-top: 3px solid var(--kiremit);
  padding-top: 1.1rem;
}

.deger h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  margin: 0 0 .4rem;
}

.deger p {
  margin: 0;
  font-size: .92rem;
  color: #3A4046;
}

/* ---------- Kurucu (Hakkımızda) ---------- */

.kurucu-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.kurucu-foto {
  width: 100%;
  border-radius: var(--radius);
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 15%;
}

.kurucu-ad {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: .9rem 0 .25rem;
}

.kurucu-mesaj {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.6;
  color: #3A4046;
  margin: 1rem 0 1.5rem;
  border-left: 3px solid var(--kiremit);
  padding-left: 1.25rem;
}

/* ---------- İletişim sayfası ---------- */

.iletisim-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.bilgi-blok { margin-bottom: 1.75rem; }

.bilgi-blok h3 {
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gri);
  margin: 0 0 .4rem;
}

.bilgi-blok p { margin: 0; font-size: 1.05rem; }

.bilgi-blok a { text-decoration: none; font-weight: 700; }

.bilgi-blok a:hover { color: var(--kiremit); }

.bilgi-blok .sosyal { margin-right: 1.25rem; }

.harita {
  width: 100%;
  height: 100%;
  min-height: 380px;
  border: 0;
  border-radius: var(--radius);
  filter: grayscale(.2);
}

/* ---------- Reveal animasyonu ---------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .proje-card img { transition: none; }
}

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

@media (max-width: 960px) {
  .proje-grid { grid-template-columns: repeat(2, 1fr); }
  .rakamlar__grid { grid-template-columns: repeat(2, 1fr); }
  .hakkimizda__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .deger-grid { grid-template-columns: repeat(2, 1fr); }
  .kurucu-grid { grid-template-columns: 1fr; }
  .iletisim-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav {
    /* absolute: panel header'a bağlı kalır, sayfa kaydırılınca
       header ile birlikte yukarı çıkar (fixed'de kopuk kalıyordu) */
    position: absolute;
    left: var(--gutter);
    right: var(--gutter);
    top: 84px;
    flex-direction: column;
    align-items: stretch;
    gap: .25rem;
    background: rgba(255, 255, 255, .6);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, .6);
    border-radius: 22px;
    box-shadow:
      inset 0 0 0 1px rgba(255, 255, 255, .35),
      0 16px 48px rgba(0, 0, 0, .25);
    padding: .75rem;
    transform: translateY(-130%) scale(.98);
    opacity: 0;
    pointer-events: none;
    transition: transform .3s ease, opacity .3s ease;
  }

  .nav.is-open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  .nav a,
  .header.is-scrolled .nav a {
    padding: .85rem 1rem;
    border-radius: 12px;
    background: none;
    border: 0;
    box-shadow: none;
    color: var(--ink);
    text-shadow: none;
  }

  .nav a:hover,
  .nav a[aria-current="page"] { background: rgba(30, 34, 38, .07); }

  .nav__tel {
    margin-top: .5rem;
    justify-content: center;
  }

  .menu-btn { display: block; }

  .proje-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }

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

  .proje-slider__progress { display: none; }

  /* Alta sabitlenen iştirak satırı dar ekranda sarıyor;
     CTA butonlarıyla çakışmaması için nefes payı */
  .hero__in { padding-bottom: 6.5rem; }
}

@media (max-width: 480px) {
  .deger-grid { grid-template-columns: 1fr; }
}

/* ---------- Proje kartı: açıklama ve künye ---------- */

.proje-card__aciklama {
  margin: 0;
  padding: 0 1.2rem;
  font-size: .92rem;
  line-height: 1.65;
  color: var(--gri);
}

.proje-card__tag--devam {
  background: var(--antrasit);
}

.proje-spec {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.1rem 0 0;
  padding: 1rem 1.2rem 1.2rem;
  border-top: 1px solid var(--cizgi);
}

.proje-spec > div { min-width: 0; }

.proje-spec dt {
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gri);
}

.proje-spec dd {
  margin: .3rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .95rem;
  color: var(--ink);
  line-height: 1.25;
}

/* ---------- WhatsApp butonu ---------- */

.wp {
  position: fixed;
  right: clamp(1rem, 3vw, 1.75rem);
  bottom: clamp(1rem, 3vw, 1.75rem);
  z-index: 70;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  height: 56px;
  padding: 0 1.1rem;
  border-radius: 999px;
  background: #25D366;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 8px 28px rgba(0, 0, 0, .28);
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}

.wp:hover {
  background: #1EBE5A;
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(0, 0, 0, .34);
}

.wp svg { width: 26px; height: 26px; flex: none; }

.wp__yazi {
  font-size: .85rem;
  font-weight: 800;
  letter-spacing: .06em;
  white-space: nowrap;
}

@media (max-width: 600px) {
  .wp { height: 54px; width: 54px; padding: 0; justify-content: center; }
  .wp__yazi { display: none; }
}

@media (max-width: 420px) {
  .proje-spec { grid-template-columns: 1fr 1fr; }
  .proje-spec > div:first-child { grid-column: span 2; }
}

@media (prefers-reduced-motion: reduce) {
  .wp { transition: none; }
  .wp:hover { transform: none; }
}

/* ---------- Proje detay sayfası ---------- */

.geri {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  text-decoration: none;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 1.1rem;
  transition: color .2s ease, gap .2s ease;
}

.geri:hover { color: var(--kiremit); gap: .85rem; }

.geri .icon { width: 1rem; height: 1rem; }

.detay {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}

.detay__galeri { display: grid; gap: 1.25rem; }

.detay__foto {
  margin: 0;
  overflow: hidden;
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 2px 16px rgba(30, 34, 38, .06);
}

.detay__foto img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center 32%;
}

.detay__kunye {
  position: sticky;
  top: 1.5rem;
  background: var(--surface);
  border-radius: 18px;
  padding: 1.75rem;
  box-shadow: 0 2px 16px rgba(30, 34, 38, .06);
}

.detay__kunye h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  margin: 0 0 1.25rem;
}

.detay__kunye dl { margin: 0 0 1.5rem; }

.detay__kunye dl > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: .7rem 0;
  border-bottom: 1px solid var(--cizgi);
}

.detay__kunye dl > div:last-child { border-bottom: 0; }

.detay__kunye dt {
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gri);
  flex: none;
}

.detay__kunye dd {
  margin: 0;
  text-align: right;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .95rem;
}

.detay__kunye .durum-devam { color: var(--antrasit); }
.detay__kunye .durum-tamam { color: var(--kiremit); }

.detay__kunye .btn { width: 100%; justify-content: center; }

.detay__metin { max-width: 68ch; }

.detay__metin h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.15;
  letter-spacing: -.01em;
  margin: .9rem 0 1.25rem;
}

.detay__metin p {
  margin: 0 0 1.1rem;
  color: #3A4046;
  line-height: 1.8;
}

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

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

@media (max-width: 960px) {
  .detay { grid-template-columns: 1fr; }
  .detay__kunye { position: static; }
  .deger-grid--uc { grid-template-columns: repeat(2, 1fr); }
  .proje-grid--uc { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .proje-grid--uc { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .deger-grid--uc { grid-template-columns: 1fr; }
  .detay__kunye dl > div { flex-direction: column; gap: .15rem; }
  .detay__kunye dd { text-align: left; }
}

/* ---------- Sıkça Sorulanlar ---------- */

.sss { background: var(--surface); }

.sss__liste {
  display: grid;
  gap: .75rem;
  max-width: 900px;
}

.sss__oge {
  background: var(--bg);
  border-radius: 12px;
  border: 1px solid var(--cizgi);
  overflow: hidden;
  transition: border-color .25s ease, box-shadow .25s ease;
}

.sss__oge[open] {
  border-color: var(--kiremit);
  box-shadow: 0 6px 24px rgba(30, 34, 38, .07);
}

.sss__oge summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  cursor: pointer;
  list-style: none;
}

.sss__oge summary::-webkit-details-marker { display: none; }

.sss__oge summary h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(.98rem, 1.6vw, 1.1rem);
  line-height: 1.35;
  margin: 0;
}

.sss__ok {
  width: 1.35rem;
  height: 1.35rem;
  flex: none;
  color: var(--kiremit);
  transition: transform .3s ease;
}

.sss__oge[open] .sss__ok { transform: rotate(180deg); }

.sss__cevap {
  padding: 0 1.35rem 1.3rem;
  border-top: 1px solid var(--cizgi);
}

.sss__cevap p {
  margin: 1rem 0 0;
  color: #3A4046;
  line-height: 1.75;
}

/* Ekran okuyucuya özel (görsel olarak gizli) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  .sss__ok, .sss__oge { transition: none; }
}