/* ============================================================
   WEBSITEKS MOBİLYA — MİMARİ PORTFOLYO
   Arketip: oharchitecture.com.au · Sol-sabit sidebar · Proje-grid → case-study
   Palet: sofistike nötr + tek bronz aksan · Dev Fraunces serif başlık
   ============================================================ */

/* ── 0. FONT ── */
@font-face {
  font-family: "Fraunces";
  src: url("../assets/fonts/fraunces-lat.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Fraunces";
  src: url("../assets/fonts/fraunces-italic-lat.woff2") format("woff2");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Manrope";
  src: url("../assets/fonts/manrope-lat.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}

/* ── 1. TOKENS ── */
:root {
  --bg:            #f8f7f5;
  --surface:       #ffffff;
  --surface-2:     #f2f0ec;
  --text:          #1a1a1a;
  --muted:         #6b6560;
  --subtle:        #a09c97;
  --accent:        #b07c5e;
  --accent-dark:   #8c5e42;
  --border:        #e0ddd9;
  --border-subtle: #ece9e5;

  --sidebar-bg:    #1a1a1a;
  --sidebar-text:  #e8e4df;
  --sidebar-muted: #7a756f;
  --sidebar-w:     220px;

  /* soket tema override */
  --soket-bg:      #1a1a1a;
  --soket-bg-2:    #2a2520;
  --soket-radius:  0px;
  --soket-accent:  #b07c5e;
  --soket-fg:      #e8e4df;
  --soket-muted:   #7a756f;

  --font-serif:    "Fraunces", Georgia, serif;
  --font-sans:     "Manrope", system-ui, sans-serif;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  16px;

  --ease-out:   cubic-bezier(.16,1,.3,1);
  --ease-spring:cubic-bezier(.34,1.56,.64,1);

  --transition: 420ms var(--ease-out);
}

/* ── 2. RESET / BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
ul, ol { list-style: none; }

/* skip link */
.atla-baglanti {
  position: fixed; top: 16px; left: 230px; z-index: 9999;
  background: var(--accent); color: #fff; padding: 8px 16px;
  transform: translateY(-200%); transition: transform .3s;
  border-radius: var(--radius-sm);
}
.atla-baglanti:focus { transform: translateY(0); }

/* ── 3. SOL-SABİT SİDEBAR ── */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  padding: 36px 28px;
  z-index: 200;
  overflow: hidden;
  border-right: 1px solid rgba(255,255,255,.06);
}

.sidebar__logo {
  display: block;
  margin-bottom: 48px;
  flex-shrink: 0;
}
.sidebar__logo-isim {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--sidebar-text);
  line-height: 1;
}
.sidebar__logo-alt {
  display: block;
  font-size: .65rem;
  color: var(--sidebar-muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-top: 4px;
}

.sidebar__nav { flex: 1; }
.sidebar__liste { display: flex; flex-direction: column; gap: 4px; }
.sidebar__liste a {
  display: block;
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--sidebar-muted);
  padding: 8px 0;
  transition: color var(--transition);
  position: relative;
}
.sidebar__liste a::before {
  content: "";
  position: absolute;
  left: -28px; top: 50%;
  transform: translateY(-50%);
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}
.sidebar__liste a:hover,
.sidebar__liste a.aktif {
  color: var(--sidebar-text);
}
.sidebar__liste a:hover::before,
.sidebar__liste a.aktif::before {
  width: 20px;
}

.sidebar__alt {
  flex-shrink: 0;
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 24px;
}
.sidebar__tel {
  display: block;
  font-size: .72rem;
  color: var(--sidebar-muted);
  letter-spacing: .04em;
  margin-bottom: 16px;
  transition: color var(--transition);
}
.sidebar__tel:hover { color: var(--sidebar-text); }
.sidebar__sosyal { display: flex; gap: 12px; }
.sidebar__sosyal a {
  display: flex; align-items: center; justify-content: center;
  width: 30px; height: 30px;
  color: var(--sidebar-muted);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 50%;
  transition: color var(--transition), border-color var(--transition);
}
.sidebar__sosyal a:hover {
  color: var(--sidebar-text);
  border-color: rgba(255,255,255,.3);
}
.sidebar__sosyal svg { width: 14px; height: 14px; }

/* hamburger — sadece mobilede görünür */
.sidebar__burger {
  display: none;
  position: fixed;
  top: 16px; left: 16px;
  z-index: 300;
  width: 42px; height: 42px;
  background: var(--sidebar-bg);
  border-radius: var(--radius-sm);
  align-items: center; justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
}
.sidebar__burger span {
  display: block;
  width: 100%; height: 1px;
  background: var(--sidebar-text);
  transition: transform .3s, opacity .3s;
}

/* ── 4. MAIN CONTENT ── */
.site-main {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
}

/* ── 5. MANİFESTO / HERO ── */
.manifesto {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 80px 80px 80px;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}
.manifesto::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--border);
}
.manifesto__ic {
  max-width: 820px;
  position: relative;
  z-index: 1;
}
.manifesto__no {
  display: block;
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
}
.manifesto__baslik {
  font-family: var(--font-serif);
  font-size: 6.3rem;
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: 0;
  color: var(--text);
  margin-bottom: 32px;
}
.manifesto__baslik em {
  font-style: italic;
  color: var(--accent);
}
.manifesto__alt {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 520px;
  margin-bottom: 48px;
  line-height: 1.7;
}
.manifesto__aksiyon { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--dolu {
  background: var(--text);
  color: var(--bg);
}
.btn--dolu:hover { background: var(--accent); }
.btn--cizgi {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--cizgi:hover {
  border-color: var(--text);
}
.btn--aksan {
  background: var(--accent);
  color: #fff;
}
.btn--aksan:hover { background: var(--accent-dark); }
.btn .ok { transition: transform var(--transition); }
.btn:hover .ok { transform: translateX(4px); }

.manifesto__gorsel {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 42%;
  overflow: hidden;
  opacity: .12;
}
.manifesto__gorsel img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(1);
}

/* ── 6. BÖLÜM ORTAK ── */
.bolum {
  padding: 100px 80px;
  border-bottom: 1px solid var(--border);
}
.bolum--bg {
  background: var(--surface);
}
.bolum__bas {
  margin-bottom: 60px;
}
.eyebrow {
  display: block;
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.bolum__baslik {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: 0;
  color: var(--text);
}

/* ── 7. PROJE IZGARASI ── */
.projeler {
  background: var(--surface);
}
.proje-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}
.proje-kart {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4 / 3;
  background: var(--surface-2);
}
.proje-kart img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--ease-out);
}
.proje-kart:hover img { transform: scale(1.04); }
.proje-kart__on {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20,18,15,.85) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  opacity: 0;
  transition: opacity var(--transition);
}
.proje-kart:hover .proje-kart__on { opacity: 1; }
.proje-kart__kat {
  font-size: .65rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.proje-kart__ad {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 400;
  color: #fff;
  margin-bottom: 6px;
  line-height: 1.2;
}
.proje-kart__yer {
  font-size: .72rem;
  color: rgba(255,255,255,.6);
  letter-spacing: .08em;
}
.proje-kart__detay {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.8);
  margin-top: 16px;
  border-top: 1px solid rgba(255,255,255,.2);
  padding-top: 14px;
}
.proje-kart__detay .ok { transition: transform var(--transition); }
.proje-kart:hover .proje-kart__detay .ok { transform: translateX(4px); }

/* view-transition ismi her kart için dinamik */
.proje-kart[data-proje="alacati"]      { view-transition-name: proje-alacati; }
.proje-kart[data-proje="dosemealti"]   { view-transition-name: proje-dosemealti; }
.proje-kart[data-proje="muratpasa-villa"] { view-transition-name: proje-muratpasa-villa; }
.proje-kart[data-proje="muratpasa-daire"] { view-transition-name: proje-muratpasa-daire; }

/* view-transition animasyon */
@keyframes fade-in  { from { opacity: 0; } }
@keyframes fade-out { to   { opacity: 0; } }
@keyframes slide-in { from { transform: translateY(32px); opacity: 0; } }
::view-transition-old(root) { animation: 240ms ease-out fade-out; }
::view-transition-new(root) { animation: 400ms ease-out fade-in; }
::view-transition-old(proje-alacati),
::view-transition-old(proje-dosemealti),
::view-transition-old(proje-muratpasa-villa),
::view-transition-old(proje-muratpasa-daire) { animation: 240ms ease-out fade-out; }

/* ── 8. CASE-STUDY OVERLAY ── */
.proje-overlay {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: flex;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--surface);
}
.proje-overlay[hidden] { display: none; }

.overlay-kapat {
  position: fixed;
  top: 28px; right: 36px;
  z-index: 510;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 1.1rem;
  color: var(--text);
  background: var(--surface);
  transition: background var(--transition), transform var(--transition);
}
.overlay-kapat:hover {
  background: var(--text);
  color: var(--surface);
  transform: rotate(90deg);
}

.overlay-ic {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 60px 120px;
}
.overlay-ic__gorsel {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  margin-bottom: 48px;
  border-radius: var(--radius-md);
}
.overlay-ic__gorsel img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.overlay-ic__meta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}
.overlay-ic__kat {
  font-size: .65rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--accent);
}
.overlay-ic__yer {
  font-size: .7rem;
  color: var(--muted);
}
.overlay-ic__baslik {
  font-family: var(--font-serif);
  font-size: 3.4rem;
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: 0;
  margin-bottom: 32px;
}
.overlay-ic__metin {
  max-width: 620px;
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 40px;
}
.overlay-ic__ozellikler {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  border-top: 1px solid var(--border);
  padding-top: 40px;
  margin-top: 40px;
}
.overlay-ic__ozellik-baslik {
  font-size: .65rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--subtle);
  margin-bottom: 6px;
}
.overlay-ic__ozellik-deger {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text);
}

/* ── 9. 3D SOKET VİTRİNİ ── */
.soket-vitrin {
  background: #111;
  color: #e8e4df;
  padding: 100px 80px;
  border-bottom: none;
}
.soket-vitrin .eyebrow { color: var(--accent); }
.soket-vitrin .bolum__baslik { color: #e8e4df; }
.soket-vitrin__izgara {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-top: 60px;
}
.soket-vitrin__metin { }
.soket-vitrin__metin h3 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 300;
  line-height: 1.15;
  margin-bottom: 20px;
  color: #e8e4df;
}
.soket-vitrin__metin p {
  font-size: .95rem;
  color: #7a756f;
  line-height: 1.7;
  margin-bottom: 28px;
}
.soket-vitrin__ozellikler {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 36px;
}
.soket-vitrin__ozellikler li {
  font-size: .8rem;
  color: #9e9890;
  padding-left: 16px;
  position: relative;
}
.soket-vitrin__ozellikler li::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 6px; height: 1px;
  background: var(--accent);
  transform: translateY(-50%);
}

/* ── 10. STÜDYO / HAKKINDA ── */
.studio__izgara {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.studio__metin p {
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 20px;
  font-size: 1rem;
}
.studio__logo {
  width: 120px;
  height: auto;
  margin-bottom: 32px;
  opacity: .7;
}
.studio__cipler {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}
.cip {
  display: inline-block;
  padding: 6px 14px;
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--muted);
}
.studio__gorsel {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: var(--radius-md);
}
.studio__gorsel img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.studio__gorsel-rozet {
  position: absolute;
  bottom: 24px; left: 24px;
  background: rgba(10,8,6,.8);
  color: #e8e4df;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: .7rem;
  letter-spacing: .1em;
  backdrop-filter: blur(8px);
}

/* ── 11. SÜREÇ ── */
.surec {
  background: var(--surface);
  position: relative;
  overflow: hidden;
}
.surec__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .06;
}
.surec__bg img { width: 100%; height: 100%; object-fit: cover; }
.surec .kapsayici { position: relative; z-index: 1; }
.surec__adimlar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}
.adim {
  border-top: 2px solid var(--border);
  padding-top: 28px;
}
.adim:hover { border-top-color: var(--accent); }
.adim__no {
  display: block;
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--border-subtle);
  line-height: 1;
  margin-bottom: 20px;
  letter-spacing: 0;
}
.adim h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}
.adim p {
  font-size: .88rem;
  color: var(--muted);
  line-height: 1.65;
}

/* ── 12. BLOG ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.blog-kart { }
.blog-kart__gorsel {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  margin-bottom: 20px;
  border-radius: var(--radius-sm);
}
.blog-kart__gorsel img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 500ms var(--ease-out);
}
.blog-kart:hover .blog-kart__gorsel img { transform: scale(1.04); }
.blog-kart__tarih {
  font-size: .65rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.blog-kart__baslik {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 8px;
}
.blog-kart:hover .blog-kart__baslik { color: var(--accent); }
.blog-kart__okuma {
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition);
}
.blog-kart:hover .blog-kart__okuma { color: var(--accent); }
.blog-kart__okuma .ok { transition: transform var(--transition); }
.blog-kart:hover .blog-kart__okuma .ok { transform: translateX(4px); }

/* ── 13. İLETİŞİM ── */
.iletisim__izgara {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}
.iletisim__bilgi-blok { margin-bottom: 28px; }
.iletisim__et {
  display: block;
  font-size: .65rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--subtle);
  margin-bottom: 6px;
}
.iletisim__deger {
  font-size: 1rem;
  color: var(--text);
  transition: color var(--transition);
}
a.iletisim__deger:hover { color: var(--accent); }
.iletisim__sosyal {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}
.iletisim__sosyal a {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--muted);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.iletisim__sosyal a:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.iletisim__sosyal svg { width: 16px; height: 16px; }

/* Form */
.form { }
.form-alan { margin-bottom: 20px; }
.form-alan label {
  display: block;
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.form-alan input,
.form-alan textarea {
  width: 100%;
  padding: 14px 16px;
  font: inherit;
  font-size: .95rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
}
.form-alan input:focus,
.form-alan textarea:focus { border-color: var(--accent); }
.form-alan textarea { min-height: 120px; resize: vertical; }
.form__not {
  margin-top: 12px;
  font-size: .72rem;
  color: var(--subtle);
}

/* Harita */
.harita {
  margin-top: 60px;
  height: 300px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
}
.harita iframe { width: 100%; height: 100%; border: none; }

/* ── 14. FOOTER ── */
.site-footer {
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding: 60px 80px 40px;
}
.footer__izgara {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer__marka-isim {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: .06em;
  display: block;
  margin-bottom: 12px;
}
.footer__marka-metin {
  font-size: .82rem;
  color: var(--sidebar-muted);
  line-height: 1.7;
  max-width: 300px;
}
.footer__baslik {
  font-size: .65rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--sidebar-muted);
  margin-bottom: 16px;
}
.footer__liste { display: flex; flex-direction: column; gap: 8px; }
.footer__liste a {
  font-size: .82rem;
  color: var(--sidebar-muted);
  transition: color var(--transition);
}
.footer__liste a:hover { color: var(--sidebar-text); }
.footer__alt {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  font-size: .72rem;
  color: var(--sidebar-muted);
}
.footer__alt a { color: inherit; transition: color var(--transition); }
.footer__alt a:hover { color: var(--sidebar-text); }

/* ── 15. YARDIMCI ── */
.kapsayici { width: 100%; }

/* ── 16. RESPONSIVE ── */
@media (max-width: 1200px) {
  .bolum { padding: 80px 60px; }
  .manifesto { padding: 80px 60px; }
  .site-footer { padding: 60px 60px 40px; }
  .soket-vitrin { padding: 80px 60px; }
}

@media (max-width: 900px) {
  :root { --sidebar-w: 0px; }

  .sidebar {
    transform: translateX(-100%);
    transition: transform .35s var(--ease-out);
    width: 240px;
  }
  .sidebar.acik { transform: translateX(0); }

  .sidebar__burger { display: flex; }

  .site-main { margin-left: 0; }

  .manifesto { padding: 100px 32px 60px; }
  .manifesto__gorsel { display: none; }

  .bolum { padding: 60px 32px; }
  .soket-vitrin { padding: 60px 32px; }
  .site-footer { padding: 60px 32px 40px; }

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

  .soket-vitrin__izgara { grid-template-columns: 1fr; gap: 40px; }

  .studio__izgara { grid-template-columns: 1fr; gap: 40px; }
  .studio__gorsel { aspect-ratio: 16 / 9; }

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

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

  .iletisim__izgara { grid-template-columns: 1fr; gap: 48px; }

  .footer__izgara { grid-template-columns: 1fr; gap: 32px; }
  .footer__alt { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 560px) {
  .surec__adimlar { grid-template-columns: 1fr; }
  .manifesto__aksiyon { flex-direction: column; }
  .overlay-ic { padding: 60px 24px 80px; }
  .overlay-kapat { top: 16px; right: 16px; }
}

/* ── 17. OVERLAY KARANLIK PERDE ── */
.overlay-perde {
  position: fixed;
  inset: 0;
  background: rgba(15,12,9,.6);
  z-index: 490;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  backdrop-filter: blur(4px);
}
.overlay-perde.aktif {
  opacity: 1;
  pointer-events: auto;
}

/* ── 18. SCROLL İLERLEME ÇUBUĞU ── */
.ilerleme-cubugu {
  position: fixed;
  top: 0; left: var(--sidebar-w); right: 0;
  height: 2px;
  background: var(--accent);
  transform-origin: left;
  transform: scaleX(0);
  z-index: 300;
  transition: transform .1s linear;
}

/* ── 19. OVERLAY İÇ KAPAT BUTONU SIDEBAR'DAN BAĞIMSIZ ── */
.overlay-ic .overlay-kapat { position: absolute; top: 24px; right: 24px; }

/* ============================================================
   20. APPLE-KALİTE CİLA KATMANI — additive override
   ============================================================ */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: grid;
  place-items: center;
  pointer-events: none;
  background:
    radial-gradient(78% 62% at 50% 42%, rgba(176,124,94,.18), transparent 58%),
    #111;
  color: #f8f7f5;
  opacity: 1;
  animation: preloader-cozul 1.7s .25s var(--ease-out) forwards;
}
.preloader span {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .12em;
  transform: translateY(8px);
  opacity: 0;
  animation: preloader-marka 1.05s var(--ease-out) forwards;
}
.preloader.preloader--bitti {
  opacity: 0;
  visibility: hidden;
  transition: opacity .55s var(--ease-out), visibility 0s .55s;
}
@keyframes preloader-marka {
  to { transform: translateY(0); opacity: 1; }
}
@keyframes preloader-cozul {
  0%, 62% { opacity: 1; visibility: visible; }
  100% { opacity: 0; visibility: hidden; }
}

:where(a, button, input, textarea, select, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  box-shadow: 0 0 0 5px rgba(176,124,94,.18);
}

.manifesto {
  min-height: 100svh;
  background: #15110e;
  color: #f8f7f5;
}
.manifesto::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(18,13,10,.92) 0%, rgba(18,13,10,.82) 44%, rgba(18,13,10,.5) 78%, rgba(18,13,10,.66) 100%),
    linear-gradient(180deg, rgba(22,15,10,.4) 0%, rgba(22,15,10,.16) 44%, rgba(22,15,10,.74) 100%);
}
.manifesto::after {
  z-index: 3;
  background: rgba(248,247,245,.14);
}
.manifesto__gorsel {
  inset: 0;
  width: auto;
  opacity: 1;
  z-index: 0;
}
.manifesto__gorsel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    radial-gradient(70% 60% at 72% 38%, rgba(176,124,94,.2), transparent 68%),
    linear-gradient(180deg, rgba(17,13,10,.1), rgba(17,13,10,.72));
}
.manifesto__video,
.manifesto__gorsel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.manifesto__video {
  min-width: 100%;
  min-height: 100%;
  filter: saturate(.82) contrast(1.04) brightness(.72);
  transform: scale(1.02);
}
.manifesto__ic {
  z-index: 2;
}
.manifesto__no {
  color: #d2a184;
}
.manifesto__baslik,
.bolum__baslik,
.overlay-ic__baslik {
  letter-spacing: 0;
}
.manifesto__baslik {
  max-width: 880px;
  color: #fffaf5;
  text-wrap: balance;
  font-size: 6.3rem;
  text-shadow: 0 1px 3px rgba(0,0,0,.5), 0 14px 46px rgba(0,0,0,.58);
}
.manifesto__baslik .satir {
  display: block;
  overflow: hidden;
}
.manifesto__baslik em {
  color: #d8a081;
}
.manifesto__alt {
  color: rgba(248,247,245,.78);
  text-wrap: pretty;
}
.manifesto .btn--dolu {
  background: #f8f7f5;
  color: #15110e;
}
.manifesto .btn--dolu:hover {
  background: var(--accent);
  color: #fff;
}
.manifesto .btn--cizgi {
  color: #f8f7f5;
  border-color: rgba(248,247,245,.32);
}
.manifesto .btn--cizgi:hover {
  border-color: rgba(248,247,245,.78);
  background: rgba(248,247,245,.08);
}

/* Hero kaydırma ipucu — akan ince çizgi + "Keşfet" (hareket.js destek zincirine girer) */
.hero__kaydir {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 30px;
  margin-inline: auto;
  width: max-content;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: rgba(248,247,245,.55);
  font-size: .6rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  transition: color var(--transition);
}
.hero__kaydir:hover { color: rgba(248,247,245,.92); }
.hero__kaydir-cizgi {
  position: relative;
  width: 1px;
  height: 48px;
  overflow: hidden;
  background: rgba(248,247,245,.16);
}
.hero__kaydir-cizgi::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(to bottom, transparent, var(--accent));
  animation: hero-kaydir-ak 2.3s cubic-bezier(.7,0,.3,1) infinite;
}
@keyframes hero-kaydir-ak {
  0% { transform: translateY(-100%); }
  55%, 100% { transform: translateY(200%); }
}
@media (max-width: 900px) { .hero__kaydir { display: none; } }
@media (prefers-reduced-motion: reduce) {
  .hero__kaydir-cizgi::after { animation: none; transform: translateY(60%); }
}

.btn {
  position: relative;
  overflow: hidden;
  transform: translateY(0);
  transition:
    transform var(--transition),
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px -26px rgba(26,26,26,.55);
}
.btn:active {
  transform: translateY(0);
}
.btn:hover .ok,
.btn:focus-visible .ok {
  transform: translateX(7px);
}

.sidebar__liste a {
  transition: color var(--transition), padding-left var(--transition);
}
.sidebar__liste a::before {
  height: 2px;
  border-radius: 99px;
  box-shadow: 0 0 18px rgba(176,124,94,.34);
}
.sidebar__liste a:hover,
.sidebar__liste a.aktif {
  padding-left: 6px;
}
.sidebar__liste a:focus-visible {
  outline-offset: 7px;
}

.proje-kart {
  --kart-parallax: 0px;
  transform: translateY(var(--kart-parallax));
  transition: transform 520ms var(--ease-out), box-shadow 520ms var(--ease-out);
  will-change: transform;
}
.proje-kart::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), rgba(176,124,94,0));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 520ms var(--ease-out);
}
.proje-kart img {
  transition: transform 900ms var(--ease-out), filter 900ms var(--ease-out);
  will-change: transform;
}
.proje-kart:hover,
.proje-kart:focus-visible {
  z-index: 3;
  transform: translateY(calc(var(--kart-parallax) - 6px));
  box-shadow: 0 28px 54px -36px rgba(16,12,9,.55);
}
.proje-kart:hover::before,
.proje-kart:focus-visible::before {
  transform: scaleX(1);
}
.proje-kart:hover img,
.proje-kart:focus-visible img {
  transform: scale(1.065);
  filter: saturate(1.04) contrast(1.02);
}
.proje-kart:focus-visible .proje-kart__on {
  opacity: 1;
}
.proje-kart__on {
  z-index: 1;
  background:
    linear-gradient(to top, rgba(18,14,11,.92) 0%, rgba(18,14,11,.46) 52%, rgba(18,14,11,.04) 100%);
}

.soket-vitrin {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(70% 55% at 22% 36%, rgba(176,124,94,.16), transparent 62%),
    linear-gradient(180deg, #121110 0%, #0f0f0f 100%);
}
.soket-vitrin::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(255,255,255,.045), transparent 18%, transparent 82%, rgba(255,255,255,.035));
}
.soket-vitrin .kapsayici {
  position: relative;
  z-index: 1;
}
.soket-vitrin__metin {
  position: relative;
}
.soket-vitrin__metin::before {
  content: "";
  display: block;
  width: 56px;
  height: 2px;
  margin-bottom: 28px;
  background: var(--accent);
  box-shadow: 0 0 22px rgba(176,124,94,.26);
}
.soket-vitrin__metin h3 {
  letter-spacing: 0;
}
.soket-vitrin__ozellikler li {
  transition: color var(--transition), transform var(--transition);
}
.soket-vitrin__ozellikler li:hover {
  color: #d8d0c8;
  transform: translateX(4px);
}

/* Faz-0: soket sahnesi (foto-gerçekçi poster) + dürüst açıklama notu */
.soket-vitrin__sahne {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.soket-vitrin__not {
  font-size: .72rem;
  line-height: 1.5;
  letter-spacing: .01em;
  color: #8c857c;
  max-width: 42ch;
}
.soket-vitrin__not strong {
  color: #b9b0a6;
  font-weight: 600;
}

.surec__bg {
  opacity: .08;
  transform-origin: 50% 50%;
}
.surec__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--surface) 0%, rgba(255,255,255,.76) 46%, var(--surface) 100%);
}
.surec__bg img {
  filter: grayscale(.24) sepia(.08);
}

@media (max-width: 1200px) {
  .manifesto__baslik { font-size: 5.25rem; }
  .bolum__baslik { font-size: 2.55rem; }
  .overlay-ic__baslik { font-size: 3rem; }
  .soket-vitrin__metin h3 { font-size: 2rem; }
}

@media (max-width: 900px) {
  .manifesto {
    min-height: 92svh;
    padding: 104px 32px 64px;
  }
  .manifesto__gorsel {
    display: block;
  }
  .manifesto::before {
    background:
      linear-gradient(180deg, rgba(18,13,10,.8) 0%, rgba(18,13,10,.58) 42%, rgba(18,13,10,.84) 100%);
  }
  .manifesto__baslik {
    font-size: 3.7rem;
  }
  .bolum__baslik { font-size: 2.25rem; }
  .overlay-ic__baslik { font-size: 2.55rem; }
  .proje-kart__ad { font-size: 1.35rem; }
}

@media (max-width: 560px) {
  .preloader span { font-size: .95rem; }
  .manifesto__baslik {
    font-size: 2.85rem;
  }
  .bolum__baslik { font-size: 2rem; }
  .overlay-ic__baslik { font-size: 2.15rem; }
  .soket-vitrin__metin h3 { font-size: 1.7rem; }
  .manifesto__alt {
    margin-bottom: 34px;
  }
  .btn {
    justify-content: center;
    width: 100%;
    padding-inline: 18px;
    white-space: normal;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .preloader {
    display: none;
  }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }
  .manifesto__video {
    opacity: 0;
  }
  .manifesto__gorsel {
    background: url("../assets/video/hero-poster.jpg") center / cover no-repeat;
    transform: none !important;
  }
  .proje-kart,
  .proje-kart img,
  .surec__bg,
  .manifesto__gorsel {
    transform: none !important;
  }
}