/* Layout: kırmızı / gümüş-beyaz / koyu bölümler dönüşümlü akar. Hero'da mimari çizim kendini çizer,
   aynı çizim "Tasarla" bölümünde canlı ürüne dönüşür. */
:root{
  --red:#A80820; --red-deep:#76061A; --ink:#1A1114; --silver:#D3D8DB; --paper:#ECEFF0; --white:#F7F9F9; --wood:#B98C5A;
  --bg:var(--ink); --fg:var(--white); --mut:rgba(247,249,249,.74); --ln:rgba(247,249,249,.24); --acc:var(--silver);
  --ff-d:'Bricolage Grotesque','Segoe UI',system-ui,sans-serif;
  --ff-b:'Figtree','Segoe UI',system-ui,sans-serif;
  --ff-m:'IBM Plex Mono',ui-monospace,Menlo,Consolas,monospace;
  --wrap:1180px;
}
.s-red{--bg:var(--red);--fg:var(--white);--mut:rgba(247,249,249,.82);--ln:rgba(247,249,249,.34);--acc:var(--white)}
.s-deep{--bg:var(--red-deep);--fg:var(--white);--mut:rgba(247,249,249,.8);--ln:rgba(247,249,249,.3);--acc:var(--white)}
.s-paper{--bg:var(--paper);--fg:var(--ink);--mut:rgba(26,17,20,.74);--ln:rgba(26,17,20,.2);--acc:var(--red)}
.s-ink{--bg:var(--ink);--fg:var(--white);--mut:rgba(247,249,249,.72);--ln:rgba(247,249,249,.22);--acc:var(--silver)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--ink);color:var(--white);font-family:var(--ff-b);font-size:1.0625rem;line-height:1.6;padding-inline:0;overflow-x:hidden}
section[id]{scroll-margin-top:72px}
img{display:block}
a{color:inherit}
:focus-visible{outline:2px solid currentColor;outline-offset:3px;border-radius:2px}
h1,h2,h3{font-family:var(--ff-d);font-weight:700;letter-spacing:-.02em;text-wrap:balance;margin:0}
h1{font-size:clamp(2.7rem,7.2vw,5.6rem);line-height:1.02}
h2{font-size:clamp(2rem,4.6vw,3.5rem);line-height:1.08}
p{margin:0;text-wrap:pretty}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:20px}
.sec{background:var(--bg);color:var(--fg);padding-block:clamp(64px,9vw,120px)}
.lead{color:var(--mut);max-width:56ch}
.btn{display:inline-flex;align-items:center;gap:.6em;font:600 1rem/1 var(--ff-b);padding:16px 24px;border-radius:999px;border:1.5px solid currentColor;background:transparent;color:inherit;text-decoration:none;cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.btn-fill{background:var(--white);color:var(--red);border-color:var(--white)}
.btn-fill:hover{background:var(--ink);color:var(--white);border-color:var(--ink)}
.btn:hover{background:var(--fg);color:var(--bg)}
.s-paper .btn-fill,.s-paper .btn-red{background:var(--red);color:var(--white);border-color:var(--red)}
.s-paper .btn-fill:hover,.s-paper .btn-red:hover{background:var(--ink);border-color:var(--ink);color:var(--white)}
.mono{font-family:var(--ff-m);font-size:.8125rem;letter-spacing:.02em}

/* header */
.hd{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--red-deep);color:var(--white);border-bottom:1px solid rgba(247,249,249,.2)}
.hd .wrap{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font:700 1.15rem/1 var(--ff-d);letter-spacing:.02em}
.brand img{width:40px;height:auto;border-radius:6px}
.nav{display:flex;gap:26px;margin-left:auto;font-size:.95rem}
.nav a{text-decoration:none;opacity:.85;padding-block:6px;border-bottom:1.5px solid transparent;transition:opacity .2s,border-color .2s}
.nav a:hover{opacity:1;border-color:var(--white)}
.hd .btn{padding:11px 18px;font-size:.9rem}
@media(max-width:820px){.nav{display:none}.hd .btn{margin-left:auto}}

/* hero */
.hero{background-color:var(--red);background-image:linear-gradient(rgba(247,249,249,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(247,249,249,.09) 1px,transparent 1px);background-size:44px 44px;color:var(--white);padding-block:clamp(48px,7vw,96px);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(24px,5vw,72px);align-items:center}
.w{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.14em;margin-bottom:-.14em}
.wi{display:inline-block}
.hero-sub{margin-top:28px;font-size:1.2rem;max-width:46ch;color:rgba(247,249,249,.92)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 28px;margin-top:40px;padding-top:20px;border-top:1px solid rgba(247,249,249,.4);color:rgba(247,249,249,.88)}
.hero-art{min-width:0}
.hero-art svg{width:100%;height:auto;display:block;max-height:560px}
#hd .d{fill:none;stroke:var(--white);stroke-width:1.6;stroke-linecap:square;stroke-linejoin:miter}
#hd .th{stroke-width:.8;opacity:.6}
#hd .lbl{font-family:var(--ff-m);font-size:12px;fill:var(--white)}
#hd .wash{fill:rgba(247,249,249,.07)}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr}.hero-art{max-width:420px}}

/* marquee */
.mq{background:var(--ink);color:var(--silver);overflow:hidden;border-block:1px solid rgba(247,249,249,.14)}
.mq-in{display:flex;width:max-content;animation:mq 28s linear infinite}
.mq-in span{display:flex;align-items:center;gap:36px;padding:18px 18px;font:600 clamp(1.4rem,3vw,2.2rem)/1 var(--ff-d);letter-spacing:.01em;white-space:nowrap}
.mq svg{width:14px;height:22px;fill:var(--red)}
@keyframes mq{to{transform:translateX(-50%)}}

/* process */
.proc{position:relative;margin-top:56px}
.proc-rail{position:absolute;left:22px;top:6px;bottom:6px;width:2px;background:var(--ln)}
.proc-fill{position:absolute;left:0;top:0;bottom:0;width:100%;background:var(--red);transform-origin:top;transform:scaleY(1)}
.step{position:relative;display:grid;grid-template-columns:44px minmax(0,1fr);gap:24px;padding-bottom:44px}
.step:last-child{padding-bottom:0}
.step-n{width:44px;height:44px;border-radius:50%;background:var(--bg);border:2px solid var(--ln);display:grid;place-items:center;font:600 .95rem/1 var(--ff-m);color:var(--mut);transition:background .3s,border-color .3s,color .3s;position:relative;z-index:1}
.step.on .step-n{background:var(--red);border-color:var(--red);color:var(--white)}
.step h3{font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:8px}
.step p{color:var(--mut);max-width:58ch}
.step-g{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:start}
.step-g svg{width:96px;height:64px;stroke:var(--fg);fill:none;stroke-width:1.5;opacity:.8}
@media(max-width:620px){.step-g{grid-template-columns:1fr}.step-g svg{display:none}}
.tri{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:clamp(24px,6vw,80px);align-items:start}
@media(max-width:860px){.tri{grid-template-columns:1fr}}

/* services */
.svc-list{list-style:none;margin:48px 0 0;padding:0;border-bottom:1px solid var(--ln)}
.svc{border-top:1px solid var(--ln)}
.svc>button{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:16px;width:100%;padding:22px 0;background:none;border:0;color:var(--fg);text-align:left;cursor:pointer;font:600 clamp(1.5rem,3.6vw,2.6rem)/1.1 var(--ff-d);letter-spacing:-.01em;transition:transform .3s,color .3s}
.svc>button:hover{transform:translateX(10px);color:var(--white)}
.svc.open>button{color:var(--white)}
.pl{width:22px;height:22px;position:relative}
.pl::before,.pl::after{content:"";position:absolute;left:0;right:0;top:50%;height:2px;background:currentColor;transition:transform .3s}
.pl::after{transform:rotate(90deg)}
.svc.open .pl::after{transform:rotate(0)}
.svc-p{display:grid;grid-template-rows:0fr;transition:grid-template-rows .45s ease}
.svc.open .svc-p{grid-template-rows:1fr}
.svc-pi{overflow:hidden;min-height:0}
.svc-pb{display:flex;flex-wrap:wrap;gap:20px 40px;align-items:center;justify-content:space-between;padding:0 0 28px}
.svc-pb p{color:var(--mut);max-width:60ch}

/* configurator */
.cfg{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:clamp(24px,4vw,56px);margin-top:48px;align-items:start}
@media(max-width:900px){.cfg{grid-template-columns:1fr}}
.stage{background:#fff;border:1px solid var(--ln);padding:clamp(8px,2vw,24px);border-radius:4px;background-image:linear-gradient(rgba(26,17,20,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(26,17,20,.06) 1px,transparent 1px);background-size:32px 32px}
.stage svg{width:100%;height:auto;display:block}
.ctl{display:grid;gap:26px}
.ctl h3{font-size:1rem;font-family:var(--ff-b);font-weight:600;letter-spacing:0;margin-bottom:10px}
.sws{display:flex;flex-wrap:wrap;gap:10px}
.sw{display:flex;align-items:center;gap:10px;padding:8px 14px 8px 8px;border:1.5px solid var(--ln);border-radius:999px;background:transparent;color:var(--fg);font:500 .92rem/1 var(--ff-b);cursor:pointer;transition:border-color .2s,background .2s}
.sw i{width:24px;height:24px;border-radius:50%;border:1px solid rgba(0,0,0,.25);display:block}
.sw[aria-pressed="true"]{border-color:var(--red);background:rgba(168,8,32,.08)}
.seg{display:flex;gap:8px}
.seg .sw{padding:11px 18px;min-width:52px;justify-content:center}
.rng{width:100%;accent-color:var(--red)}
.rng-row{display:flex;justify-content:space-between;font-family:var(--ff-m);font-size:.82rem;color:var(--mut)}
.sum{padding-top:18px;border-top:1px solid var(--ln);color:var(--fg);font-weight:500}

/* projects */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px}
.chip{padding:10px 18px;border-radius:999px;border:1.5px solid var(--ln);background:transparent;color:var(--fg);font:500 .92rem/1 var(--ff-b);cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.chip[aria-pressed="true"]{background:var(--white);color:var(--red-deep);border-color:var(--white)}
.grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;margin-top:28px;grid-auto-flow:dense}
.tile{position:relative;min-height:200px;border-radius:4px;padding:18px;display:flex;flex-direction:column;justify-content:flex-end;gap:6px;overflow:hidden;color:var(--white);isolation:isolate;transition:transform .35s}
.tile::before{content:"";position:absolute;inset:0;z-index:-1;background:repeating-linear-gradient(135deg,rgba(247,249,249,.08) 0 2px,transparent 2px 14px)}
.tile:hover{transform:translateY(-4px)}
.tile b{font:600 1.25rem/1.15 var(--ff-d)}
.tile em{font:400 .76rem/1 var(--ff-m);font-style:normal;opacity:.78}
.t1{grid-column:span 3;grid-row:span 2;background:linear-gradient(160deg,#5b3e2b,#2a1b14)}
.t2{grid-column:span 3;background:linear-gradient(160deg,#363a3d,#1e2124)}
.t3{grid-column:span 2;background:linear-gradient(160deg,#a80820,#6b0416)}
.t4{grid-column:span 1;background:linear-gradient(160deg,#c49a62,#8a6238)}
.t5{grid-column:span 2;background:linear-gradient(160deg,#4a4f53,#25282b)}
.t6{grid-column:span 2;background:linear-gradient(160deg,#6a4731,#34231a)}
.t7{grid-column:span 2;background:linear-gradient(160deg,#8f1426,#52030f)}
.t8{grid-column:span 2;background:linear-gradient(160deg,#3a3033,#1a1114)}
@media(max-width:760px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tile{grid-column:span 1!important;grid-row:auto!important;min-height:170px}.t1{grid-column:span 2!important}}
.ba{margin-top:72px}
.ba-box{position:relative;margin-top:24px;border-radius:4px;overflow:hidden;aspect-ratio:480/310;max-width:100%;user-select:none;touch-action:pan-y}
.ba-l{position:absolute;inset:0;display:grid;place-items:center}
.ba-a{background:linear-gradient(180deg,#d9dde0,#bfc5c9)}
.ba-b{background-color:var(--red);background-image:linear-gradient(rgba(247,249,249,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(247,249,249,.1) 1px,transparent 1px);background-size:30px 30px;clip-path:inset(0 50% 0 0)}
.ba-l svg{width:100%;height:100%}
.ba-h{position:absolute;top:0;bottom:0;left:50%;width:2px;background:var(--white);pointer-events:none}
.ba-h::after{content:"";position:absolute;top:50%;left:50%;width:44px;height:44px;border-radius:50%;background:var(--white);transform:translate(-50%,-50%);box-shadow:0 2px 12px rgba(0,0,0,.35)}
.ba-h::before{content:"\2194";position:absolute;top:50%;left:50%;transform:translate(-50%,-52%);z-index:1;color:var(--red-deep);font-size:20px}
.ba-box input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.ba-tag{position:absolute;top:12px;padding:6px 12px;border-radius:999px;background:rgba(26,17,20,.78);color:var(--white);font:500 .78rem/1 var(--ff-m);pointer-events:none}

/* why */
.why{list-style:none;margin:0;padding:0}
.why li{padding:26px 0;border-top:1px solid var(--ln)}
.why li:last-child{border-bottom:1px solid var(--ln)}
.why h3{font-size:1.6rem;margin-bottom:8px}
.why p{color:var(--mut);max-width:52ch}

/* form */
.qf{margin-top:44px;max-width:760px}
.qsteps{display:flex;gap:8px;margin-bottom:28px}
.qsteps span{flex:1;height:4px;border-radius:2px;background:var(--ln);transition:background .3s}
.qsteps span.on{background:var(--red)}
.q-fs{border:0;margin:0;padding:0;min-width:0}
.q-fs legend{font:600 1.5rem/1.2 var(--ff-d);margin-bottom:18px;padding:0}
.opts{display:flex;flex-wrap:wrap;gap:10px}
.opt{position:relative}
.opt input{position:absolute;opacity:0;inset:0;cursor:pointer}
.opt span{display:block;padding:12px 20px;border:1.5px solid var(--ln);border-radius:999px;font-weight:500;transition:background .2s,color .2s,border-color .2s}
.opt input:checked+span{background:var(--white);color:var(--red-deep);border-color:var(--white)}
.opt input:focus-visible+span{outline:2px solid var(--white);outline-offset:3px}
.fld{display:grid;gap:8px;margin-bottom:18px}
.fld label{font-weight:500}
.fld input,.fld select,.fld textarea{width:100%;font:inherit;color:var(--white);background:rgba(247,249,249,.06);border:1.5px solid var(--ln);border-radius:6px;padding:13px 14px;color-scheme:dark}
.fld select option{color:#1A1114;background:#fff}
.fld textarea{min-height:120px;resize:vertical}
.err{color:#ffb4bd;min-height:1.5em;font-weight:500;margin-top:6px}
.qnav{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.qout{width:100%;min-height:190px;font:400 .92rem/1.55 var(--ff-m);color:var(--white);background:rgba(247,249,249,.06);border:1.5px solid var(--ln);border-radius:6px;padding:14px;color-scheme:dark}
.note{color:var(--mut);margin-top:14px;max-width:60ch}

/* contact */
.ct{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,6vw,80px);margin-top:44px}
@media(max-width:820px){.ct{grid-template-columns:1fr}}
.ph{font:700 clamp(2rem,5vw,3.4rem)/1.05 var(--ff-d);letter-spacing:-.02em;text-decoration:none;display:inline-block}
.dl{display:grid;gap:22px;margin:0}
.dl div{padding-top:16px;border-top:1px solid var(--ln)}
.dl dt{font:500 .8rem/1 var(--ff-m);color:var(--mut);margin-bottom:8px}
.dl dd{margin:0;font-size:1.1rem}
.ft{background:var(--ink);color:var(--mut);padding-block:36px}
.ft .wrap{display:flex;flex-wrap:wrap;gap:16px 32px;align-items:center;justify-content:space-between}
.ft img{width:56px;border-radius:8px}
.cp{font:500 .9rem/1 var(--ff-b);background:none;border:1.5px solid currentColor;color:inherit;border-radius:999px;padding:9px 16px;cursor:pointer;margin-left:10px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mq-in{animation:none}*{transition-duration:.01ms!important}}

/* temel sıfırlama */
body{margin:0}
img{max-width:100%;height:auto}
[hidden]{display:none!important}