/* ===================== 3D GİRİŞ ===================== */
.hero3d { position: relative; height: calc(var(--vh, 1vh) * 520); background: #16181b; color: #fff; }
.h3d-sabit { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.h3d-yedek { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .55; }
.hero3d.hazir .h3d-yedek { display: none; }
#sahne, #icSahne { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.h3d-golge { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(90deg, rgba(10,11,13,.78) 0%, rgba(10,11,13,.35) 38%, transparent 62%), linear-gradient(0deg, rgba(10,11,13,.5), transparent 30%); }
.h3d-metin { position: absolute; left: 5vw; top: 50%; max-width: min(560px, 90vw); transform: translateY(-40%); opacity: 0; pointer-events: none; transition: opacity .7s ease, transform .9s cubic-bezier(.2,.7,.2,1); }
.h3d-metin.aktif { opacity: 1; transform: translateY(-50%); pointer-events: auto; }
.h3d-metin h1 { font-size: clamp(2.5rem, 5.6vw, 4.8rem); margin-bottom: 1.4rem; }
.h3d-metin h1 em { color: #e3cfa9; }
.h3d-metin h2 { font-size: clamp(2.2rem, 4.4vw, 3.8rem); margin-bottom: 1rem; }
.h3d-metin p { font-size: 1.08rem; opacity: .9; max-width: 480px; }
.h3d-metin .lead { margin-bottom: 2.2rem; }
.h3d-metin .hero-cta { margin-top: 2rem; }
.h3d-no { display: block; font-family: var(--serif); font-size: 1.2rem; color: var(--accent); letter-spacing: .2em; margin-bottom: .6rem; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }
.h3d-ray { position: absolute; right: 3.5vw; top: 50%; transform: translateY(-50%); list-style: none; display: flex; flex-direction: column; gap: 1.6rem; font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; }
.h3d-ray li { position: relative; padding-right: 1.6rem; text-align: right; opacity: .4; cursor: pointer; transition: .4s; }
.h3d-ray li::after { content: ""; position: absolute; right: 0; top: 50%; width: 8px; height: 8px; margin-top: -4px; border: 1px solid #fff; border-radius: 50%; transition: .4s; }
.h3d-ray li.aktif { opacity: 1; }
.h3d-ray li.aktif::after { background: var(--accent); border-color: var(--accent); }
.h3d-cubuk { position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: rgba(255,255,255,.1); }
.h3d-cubuk span { display: block; height: 100%; width: calc(var(--p, 0) * 100%); background: var(--accent); }
.h3d-kaydir { position: absolute; left: 50%; bottom: 2rem; transform: translateX(-50%); font-size: .7rem; letter-spacing: .3em; text-transform: uppercase; opacity: calc(1 - var(--p, 0) * 12); }
.h3d-kaydir::after { content: ""; display: block; width: 1px; height: 38px; margin: .8rem auto 0; background: linear-gradient(#fff, transparent); animation: nefes 2s infinite; }
@keyframes nefes { 50% { transform: scaleY(.5); transform-origin: top; } }
.hero3d.webgl-yok .h3d-yedek { opacity: 1; }
.ic3d { height: calc(var(--vh, 1vh) * 420); }

.btn-ghost { background: transparent; border-color: rgba(255,255,255,.6); }
.btn-ghost:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn-ghost-koyu { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost-koyu:hover { background: var(--ink); color: #fff; }
.bolum-alt { max-width: 640px; color: var(--muted); margin-top: 1rem; }
.alt-baslik { font-size: clamp(1.6rem, 3vw, 2.4rem); }

/* Güven şeridi */
.guven { background: #1c1b19; color: #e9e4dc; padding: 3.2rem 5vw; border-top: 1px solid rgba(255,255,255,.08); }
.guven-ic { display: grid; grid-template-columns: repeat(5, 1fr); gap: 2rem; }
.guven strong { display: block; font-family: var(--serif); font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 500; color: var(--accent); line-height: 1; }
.guven span { font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; opacity: .7; }

/* Teslim edilen projeler */
.tamam .section-head { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 1rem 3rem; }
.tamam .section-head > :not(.filters) { grid-column: 1; }
.tamam .filters { grid-column: 2; grid-row: 3; }
.tamam-liste { display: flex; flex-direction: column; gap: 5rem; }
.tp { display: grid; grid-template-columns: 1.35fr 1fr; gap: 4rem; align-items: center; cursor: pointer; }
.tp:nth-child(even) .tp-gorsel { order: 2; }
.tp.hidden, .project.hidden { display: none; }
.tp-gorsel { position: relative; overflow: hidden; aspect-ratio: 16 / 10; background: #ddd5c8; }
.tp-gorsel img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s cubic-bezier(.2,.7,.2,1); }
.tp:hover .tp-gorsel img { transform: scale(1.05); }
.rozet { position: absolute; top: 1.2rem; left: 1.2rem; background: var(--accent); color: #fff; font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; padding: .45rem .9rem; }
.rozet-devam { background: #23211e; }
.adet { position: absolute; right: 1.2rem; bottom: 1.2rem; background: rgba(0,0,0,.55); color: #fff; font-size: .72rem; padding: .35rem .8rem; letter-spacing: .08em; }
.tp-no { font-family: var(--serif); color: var(--accent); font-size: 1.1rem; letter-spacing: .2em; }
.tp-bilgi h3 { font-size: clamp(2rem, 3.4vw, 3rem); margin: .4rem 0 .3rem; }
.tp-konum { font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 1.2rem; }
.tp-ozellik { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.4rem 0 2rem; }
.tp-ozellik li { border: 1px solid var(--line); padding: .3rem .8rem; font-size: .8rem; }

/* Kentsel dönüşüm */
.kd { background: #ece6dc; }
.kd-surec { display: grid; grid-template-columns: 340px 1fr; gap: 4rem; align-items: start; }
.kd-adimlar { list-style: none; border-left: 1px solid rgba(35,33,30,.2); }
.kd-adimlar li { position: relative; padding: 1rem 0 1rem 2rem; cursor: pointer; font-family: var(--serif); font-size: 1.35rem; color: var(--muted); transition: .3s; }
.kd-adimlar li span { font-family: var(--sans); font-size: .72rem; letter-spacing: .15em; margin-right: .8rem; }
.kd-adimlar li::before { content: ""; position: absolute; left: -1px; top: 0; bottom: 0; width: 2px; background: var(--accent); transform: scaleY(0); transition: .4s; }
.kd-adimlar li.aktif { color: var(--ink); }
.kd-adimlar li.aktif::before { transform: none; }
.kd-detay { position: relative; min-height: 300px; }
.kd-detay article { position: absolute; inset: 0; opacity: 0; transform: translateX(20px); transition: .6s; pointer-events: none; background: #fff; padding: 3rem; box-shadow: 0 30px 60px -30px rgba(35,33,30,.25); }
.kd-detay article.aktif { opacity: 1; transform: none; pointer-events: auto; }
.kd-detay h3 { font-size: 2.2rem; margin-bottom: 1rem; }
.kd-detay ul { margin-top: 1.4rem; list-style: none; }
.kd-detay li { padding-left: 1.6rem; position: relative; margin: .5rem 0; }
.kd-detay li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); }
.destek { margin-top: 6rem; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 1.2rem; align-items: stretch; }
.destek-baslik h3 { font-size: 2rem; margin-bottom: .6rem; }
.destek-kart { background: #1c1b19; color: #fff; padding: 2rem 1.6rem; display: flex; flex-direction: column; justify-content: flex-end; }
.destek-kart strong { font-family: var(--serif); font-size: 2.2rem; font-weight: 500; color: #e3cfa9; }
.destek-kart span { font-size: .8rem; opacity: .75; }
.dipnot { grid-column: 1 / -1; font-size: .78rem; color: var(--muted); }
.neden { margin-top: 5rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2.5rem; }
.neden div { border-top: 1px solid var(--ink); padding-top: 1.4rem; }
.neden h3 { font-size: 1.5rem; margin-bottom: .5rem; }
.neden p { font-size: .92rem; color: var(--muted); }

/* Sihirbaz */
.sihirbaz { background: var(--bg-dark); color: #e9e4dc; }
.sihirbaz-ic { display: grid; grid-template-columns: 1fr 1.2fr; gap: 6rem; }
.sihirbaz-sol h2 { margin-bottom: 1.5rem; }
.sihirbaz-gosterge { list-style: none; display: flex; gap: .6rem; margin-top: 3rem; }
.sihirbaz-gosterge li { flex: 1; padding-top: .8rem; border-top: 2px solid rgba(255,255,255,.15); font-size: .72rem; letter-spacing: .15em; text-transform: uppercase; opacity: .5; transition: .4s; }
.sihirbaz-gosterge li.aktif { border-color: var(--accent); opacity: 1; }
.sihirbaz-form fieldset { border: 0; display: none; flex-direction: column; gap: 1.4rem; animation: belir .5s ease; }
.sihirbaz-form fieldset.aktif { display: flex; }
@keyframes belir { from { opacity: 0; transform: translateY(12px); } }
.sihirbaz-form legend { font-family: var(--serif); font-size: 1.8rem; margin-bottom: 1.4rem; }
.sihirbaz-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.sihirbaz-form label { display: flex; flex-direction: column; gap: .5rem; font-size: .72rem; letter-spacing: .15em; text-transform: uppercase; opacity: .85; }
.sihirbaz-form input:not([type=radio]):not([type=checkbox]), .sihirbaz-form textarea { background: transparent; border: 0; border-bottom: 1px solid rgba(255,255,255,.3); padding: .7rem 0; color: #fff; font: 300 1rem var(--sans); outline: none; resize: vertical; }
.sihirbaz-form input:focus, .sihirbaz-form textarea:focus { border-color: var(--accent); }
.secenekler { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.secenekler label { cursor: pointer; text-transform: none; letter-spacing: 0; opacity: 1; position: relative; }
.secenekler input { position: absolute; opacity: 0; }
.secenekler span { display: block; border: 1px solid rgba(255,255,255,.2); padding: 1.3rem; font-size: .85rem; opacity: .75; transition: .3s; height: 100%; }
.secenekler b { display: block; font-family: var(--serif); font-size: 1.35rem; font-weight: 500; margin-bottom: .2rem; }
.secenekler input:checked + span { border-color: var(--accent); background: rgba(168,135,90,.12); opacity: 1; }
.secenekler input:focus-visible + span { outline: 2px solid var(--accent); }
.sihirbaz-form .onay { flex-direction: row; align-items: flex-start; text-transform: none; letter-spacing: 0; font-size: .82rem; gap: .7rem; }
.sihirbaz-form .onay a { color: var(--accent); text-decoration: underline; }
.ipucu-kutu { font-size: .88rem; color: #e3cfa9; min-height: 1.4em; }
.sihirbaz-alt { display: flex; gap: 1rem; margin-top: 2rem; }
.sihirbaz .btn-ghost-koyu { color: #fff; border-color: rgba(255,255,255,.5); }
.form-note { font-size: .85rem; color: var(--accent); margin-top: 1rem; }

/* Arsa + devam eden */
.arsa-ust { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: end; margin-bottom: 6rem; padding-bottom: 5rem; border-bottom: 1px solid var(--line); }
.arsa-ust p { margin-bottom: 1.6rem; color: var(--muted); }
.devam-liste { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.dp { cursor: pointer; }
.dp-gorsel { position: relative; aspect-ratio: 4 / 5; overflow: hidden; margin-bottom: 1.2rem; background: #ddd5c8; }
.dp-gorsel img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s; }
.dp:hover .dp-gorsel img { transform: scale(1.05); }
.dp h3 { font-size: 1.8rem; }
.dp p { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.dp .dp-ozet { text-transform: none; letter-spacing: 0; font-size: .92rem; margin-top: .5rem; }

/* İç mimarlık: derinlikli görseller */
.projects .section-head .ipucu { width: 100%; order: 3; }
.ipucu { font-size: .85rem; color: var(--muted); }
.project, .about-img { transform: perspective(900px) rotateX(var(--rx, 0)) rotateY(var(--ry, 0)); transition: transform .2s ease-out; }
canvas.derinlik { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.derinlikli img { visibility: hidden; }
.about-img { position: relative; cursor: zoom-in; }
.ic-not { display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap; margin-top: 3rem; padding: 2rem 0; border-top: 1px solid var(--line); }
.ic-not strong { font-family: var(--serif); font-size: 1.6rem; color: var(--accent); font-weight: 500; }

/* Kurumsal */
.belgeler { display: flex; gap: 1rem; margin-top: 2.5rem; flex-wrap: wrap; }
.belge { background: #fff; border: 1px solid var(--line); padding: .6rem; cursor: zoom-in; width: 150px; text-align: left; font: 400 .75rem var(--sans); color: var(--ink); }
.belge img { width: 100%; height: 110px; object-fit: cover; object-position: top; margin-bottom: .5rem; }

/* SSS */
.sss { background: #ece6dc; }
.sss-liste { max-width: 900px; }
.sss details { border-bottom: 1px solid rgba(35,33,30,.2); padding: 1.4rem 0; }
.sss summary { cursor: pointer; font-family: var(--serif); font-size: 1.4rem; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.sss summary::-webkit-details-marker { display: none; }
.sss summary::after { content: "+"; color: var(--accent); transition: .3s; }
.sss details[open] summary::after { transform: rotate(45deg); }
.sss details p { margin-top: .8rem; color: var(--muted); max-width: 760px; }

/* İletişim haritası */
.harita { min-height: 420px; }
.harita iframe { width: 100%; height: 100%; min-height: 420px; border: 0; filter: grayscale(.6) contrast(1.05); }

/* Galeri */
.galeri { position: fixed; inset: 0; z-index: 100; background: rgba(12,12,11,.97); color: #e9e4dc; display: grid; grid-template-rows: auto 1fr auto auto; padding: 1.5rem 4vw; opacity: 0; pointer-events: none; transition: opacity .3s; }
.galeri.open { opacity: 1; pointer-events: auto; }
.g-ust h3 { font-size: 1.8rem; }
.g-ust p { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; opacity: .6; }
.g-sahne { position: relative; display: flex; align-items: center; justify-content: center; min-height: 0; }
.g-sahne img { max-width: 100%; max-height: 72vh; object-fit: contain; }
.g-ok { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,.08); border: 0; color: #fff; width: 52px; height: 52px; font-size: 2rem; cursor: pointer; border-radius: 50%; }
.g-ok:hover { background: var(--accent); }
.g-onceki { left: 0; } .g-sonraki { right: 0; }
.g-kapat { position: absolute; top: 1rem; right: 1.6rem; background: none; border: 0; color: #fff; font-size: 2.6rem; cursor: pointer; z-index: 2; }
.g-etiket { text-align: center; font-size: .85rem; opacity: .7; padding: .6rem 0; min-height: 2.2em; }
.g-kucuk { display: flex; gap: .5rem; overflow-x: auto; padding-bottom: .4rem; }
.g-kucuk img { height: 64px; width: auto; opacity: .45; cursor: pointer; transition: .3s; flex: none; }
.g-kucuk img.aktif, .g-kucuk img:hover { opacity: 1; outline: 2px solid var(--accent); }

.footer div a { margin-left: 1.5rem; }

@media (max-width: 1000px) {
  .guven-ic { grid-template-columns: repeat(3, 1fr); }
  .tp, .kd-surec, .sihirbaz-ic, .arsa-ust { grid-template-columns: 1fr; gap: 2.5rem; }
  .tp:nth-child(even) .tp-gorsel { order: 0; }
  .destek { grid-template-columns: 1fr 1fr 1fr; } .destek-baslik { grid-column: 1 / -1; }
  .neden, .devam-liste { grid-template-columns: 1fr 1fr; }
  .kd-adimlar { display: flex; overflow-x: auto; border-left: 0; border-bottom: 1px solid rgba(35,33,30,.2); }
  .kd-adimlar li { flex: none; padding: .8rem 1.2rem; font-size: 1.05rem; }
  .kd-adimlar li::before { top: auto; bottom: -1px; left: 0; right: 0; width: auto; height: 2px; transform: scaleX(0); }
  .kd-adimlar li.aktif::before { transform: none; }
  .kd-detay { min-height: 380px; }
}
@media (max-width: 700px) {
  .hero3d { height: calc(var(--vh, 1vh) * 460); }
  .h3d-metin { top: auto; bottom: 12vh; transform: translateY(20px); }
  .h3d-metin.aktif { transform: none; }
  .h3d-metin p { font-size: .98rem; }
  .h3d-metin .btn { padding: .8rem 1.2rem; font-size: .72rem; }
  .h3d-golge { background: linear-gradient(0deg, rgba(10,11,13,.92) 0%, rgba(10,11,13,.55) 45%, transparent 70%); }
  .h3d-ray { top: 5.5rem; transform: none; flex-direction: row; right: 6vw; left: 6vw; justify-content: space-between; gap: 0; font-size: .6rem; }
  .h3d-ray li { padding: 0 0 1rem; text-align: center; }
  .h3d-ray li::after { right: 50%; margin-right: -4px; top: auto; bottom: 0; }
  .guven-ic { grid-template-columns: 1fr 1fr; }
  .neden, .devam-liste, .secenekler, .sihirbaz-form .row, .destek { grid-template-columns: 1fr; }
  .tamam .section-head { grid-template-columns: 1fr; } .tamam .filters { grid-column: 1; grid-row: auto; }
  .kd-detay article { padding: 2rem 1.5rem; }
  .kd-detay { min-height: 440px; }
  .project, .about-img { transform: none; }
  .g-ok { width: 40px; height: 40px; }
}

/* Menü: uzun bağlantı listesi için sıkıştırma */
.nav-links { gap: 1.6rem; font-size: .74rem; }
.nav-links a { white-space: nowrap; }
@media (max-width: 1350px) { .logo span { display: none; } .nav-links { gap: 1.2rem; } }
@media (max-width: 1100px) and (min-width: 701px) { .nav-links a:not(.btn):nth-child(n+4) { display: none; } }
.sihirbaz-form .bal-kup { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }