:root{
  --bg:#f2f1ed; --ink:#141414; --muted:#6b6960; --line:#deddd9;
  --surface:#e8e7e3; --surface-2:#dfdeda;
  --font:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif:"Instrument Serif", Georgia, serif;
}
*{ margin:0; padding:0; box-sizing:border-box; }
html,body{
  width:100%; background:var(--bg); color:var(--ink); font-family:var(--font);
  -webkit-font-smoothing:antialiased;
  scrollbar-width:none; -ms-overflow-style:none;        /* çubuğu gizle, kaydırmayı koru */
}
html::-webkit-scrollbar, body::-webkit-scrollbar{ display:none; width:0; height:0; }
body{ height:350vh; }                                   /* masaüstünde kaydırma halkayı döndürür */
a{ color:inherit; text-decoration:none; }

.site-header{ position:fixed; inset:0 0 auto 0; z-index:50; display:flex; align-items:center;
  justify-content:space-between; padding:1.9em 2.4em; font-size:13px; letter-spacing:0.02em; }
.brand{ font-family:var(--serif); font-size:22px; letter-spacing:0; }
.nav{ display:flex; gap:2.2em; font-weight:600; }
.nav a{ position:relative; opacity:0.62; transition:opacity .3s ease; }
.nav a.is-active, .nav a:hover{ opacity:1; }
.nav a.is-active::after{ content:""; position:absolute; left:0; bottom:-6px; width:100%; height:1px; background:var(--ink); }

.corner{ position:fixed; bottom:2.2em; z-index:50; background:none; border:none; cursor:pointer;
  font-family:var(--font); font-size:13px; font-weight:600; letter-spacing:0.02em; color:var(--ink);
  padding-bottom:4px; border-bottom:1px solid var(--ink); transition:opacity .3s ease; }
.corner:hover{ opacity:0.55; }
.corner i{ font-style:normal; margin-left:0.4em; }
.corner--left{ left:2.4em; }
.corner--right{ right:2.4em; }

.foot-note{ position:fixed; bottom:2.35em; left:50%; transform:translateX(-50%); z-index:50;
  font-size:11px; letter-spacing:0.04em; color:var(--muted); pointer-events:none; white-space:nowrap; }
.foot-note a{ pointer-events:auto; border-bottom:1px solid var(--line); padding-bottom:2px; transition:color .3s ease; }
.foot-note a:hover{ color:var(--ink); }

.scene{ position:fixed; inset:0; overflow:hidden; perspective:1600px; perspective-origin:50% 50%; }
.gallery{ position:absolute; top:50%; left:50%; width:0; height:0; transform-style:preserve-3d; will-change:transform; }

/* KART = sabit hitbox. ÖNEMLİ: backface-visibility:hidden YOK (halkanın yarısını gizler → "C"/spiral hatası). */
.item{ position:absolute; top:0; left:0; width:96px; height:64px; transform-style:preserve-3d; }
.item-card{ position:absolute; inset:0; transform-style:preserve-3d; pointer-events:none;
  background:var(--surface); border:1px solid rgba(255,255,255,0.7); overflow:hidden;
  display:flex; align-items:flex-end; padding:6px 7px; transition:box-shadow .4s ease; }
.item-card .card-label{ font-size:8px; font-weight:600; letter-spacing:0.06em; text-transform:uppercase;
  color:var(--muted); line-height:1.25; }
.item-card.is-deneyim{ background:var(--ink); border-color:rgba(255,255,255,0.25); }
.item-card.is-deneyim .card-label{ color:rgba(242,241,237,0.85); }
.item-card.is-active{ box-shadow:0 6px 16px -10px rgba(0,0,0,0.35); }

.center{ position:absolute; top:43%; left:50%; transform:translate(-50%,-50%); width:min(560px,44vw);
  text-align:center; pointer-events:none; z-index:5; }
.center-eyebrow{ font-size:12px; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); margin-bottom:1.4em; }
.center-title{ font-family:var(--serif); font-size:clamp(34px,4.4vw,60px); font-weight:400; line-height:1.02; letter-spacing:-0.02em; }
.center-title em{ font-style:italic; font-weight:400; }
.center-sub{ margin-top:1.3em; font-size:14px; color:var(--muted); }
.center-default,.center-project{ transition:opacity .55s ease; }
.center-project{ position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; opacity:0; }
.center.show-project .center-default{ opacity:0; }
.center.show-project .center-project{ opacity:1; }
.preview-badge{ font-size:10px; font-weight:700; letter-spacing:0.18em; text-transform:uppercase;
  padding:5px 10px; border:1px solid var(--ink); border-radius:999px; }
.preview-badge.is-ornek{ color:var(--muted); border-color:var(--line); }
.preview-cat{ margin-top:1.2em; font-size:12px; letter-spacing:0.14em; text-transform:uppercase; color:var(--muted); }
.preview-title{ margin-top:0.3em; font-family:var(--serif); font-size:clamp(28px,3vw,44px); font-weight:400; letter-spacing:-0.01em; }
.preview-sub{ margin-top:0.7em; font-size:14px; color:var(--muted); max-width:34ch; }

.labels{ position:absolute; inset:0; pointer-events:none; }
.label{ position:absolute; transform:translate(-50%,-50%); white-space:nowrap; font-size:14px; font-weight:500;
  letter-spacing:0.01em; pointer-events:none; opacity:0.85; }
.label .ul{ border-bottom:1px solid var(--ink); padding-bottom:2px; }
.label sup{ font-size:10px; color:var(--muted); margin-left:3px; }

.mobile-preview{ display:none; }
.mobile-ring-hitbox{ display:none; }

@media (max-width:768px){
  .mobile-ring-hitbox{ display:block; position:fixed; left:0; right:0; bottom:0; top:50%;
    z-index:20; touch-action:none; pointer-events:auto; }
  body{ height:auto; }
  .scene{ height:100svh; overflow:hidden; }
  .center, .labels{ display:none; }
  .custom-cursor{ display:none !important; }
  .site-header{ padding:1.15em 1em; align-items:center; }
  .nav{ gap:1.1em; font-size:12px; }
  .nav-extra{ display:none; }                            /* dar ekranda çekirdek menü kalır */
  .foot-note{ bottom:0.9em; font-size:10px; }
  .corner{ bottom:auto; top:3.6em; font-size:13px; }
  .corner--left{ left:1em; }
  .corner--right{ right:1em; }
  .mobile-preview{ display:block; position:fixed; top:6.6em; left:0; right:0; z-index:6; padding:0 1em; pointer-events:none; }
  .mp-badge{ display:inline-block; font-size:9px; font-weight:700; letter-spacing:0.16em; text-transform:uppercase;
    padding:4px 9px; border:1px solid var(--ink); border-radius:999px; margin-bottom:9px; }
  .mp-badge.is-ornek{ color:var(--muted); border-color:var(--line); }
  .mp-cat{ font-size:10px; letter-spacing:0.14em; text-transform:uppercase; color:var(--muted); margin-bottom:5px; }
  .mp-title{ font-family:var(--serif); font-size:27px; line-height:1.05; font-weight:400; letter-spacing:-0.01em; margin-bottom:8px; }
  .mp-sub{ font-size:13px; color:var(--muted); max-width:38ch; margin-bottom:12px; }
  .mp-view{ display:inline-block; font-size:14px; font-weight:700;
    border-bottom:1px solid var(--ink); padding-bottom:2px; pointer-events:auto; }
  .mp-view i{ font-style:normal; margin-left:0.35em; }
}

.custom-cursor{ display:none; }
@media (pointer:fine) and (hover:hover){
  body{ cursor:none; }                                  /* nokta, işletim sistemi imlecinin yerini alır */
  .custom-cursor{ display:block; position:fixed; top:0; left:0; width:13px; height:13px;
    border-radius:999px; background:#000; pointer-events:none; z-index:99999; will-change:transform; transition:opacity .3s ease; }
  .custom-cursor.is-hidden{ opacity:0; }
}

body:not(.page-ready) .scene{ opacity:0; }              /* halka tamamen kurulup boyanana dek gizli */

.loading-screen{ position:fixed; inset:0; z-index:999999; background:var(--bg);
  display:flex; align-items:center; justify-content:center; cursor:default; }
.loading-screen.is-hidden{ pointer-events:none; opacity:0; transition:opacity .6s ease; }
.loading-inner{ text-align:center; opacity:0; animation:load-in .8s ease forwards; }
.loading-brand{ font-family:var(--serif); font-size:24px; letter-spacing:0; }
.loading-text{ margin-top:1.1em; font-size:11px; letter-spacing:0.26em; text-transform:uppercase;
  color:var(--muted); animation:load-pulse 1.8s ease-in-out infinite; }
.loading-bar{ width:120px; height:1px; margin:1.6em auto 0; background:rgba(0,0,0,0.12); overflow:hidden; }
.loading-bar span{ display:block; width:100%; height:100%; background:var(--ink); transform:scaleX(0);
  transform-origin:left center; animation:load-bar 1.4s ease-in-out forwards; }
@keyframes load-in{ to{ opacity:1; } }
@keyframes load-pulse{ 0%,100%{ opacity:0.45; } 50%{ opacity:1; } }
@keyframes load-bar{ to{ transform:scaleX(1); } }
@media (max-width:768px){ .loading-screen{ height:100svh; } }