/* ============================================================
   LayerBackup — "Mimari Kesit" design-system
   Palet: soğuk-açık zemin + emerald signal · Archivo/Expanded
   Kaynak: onaylı #4 hero (fixed-canvas → responsive production)
   ============================================================ */
:root{
  --bg:#edf0ef;
  --bg-2:#f4f7f5;
  --ink:#0f1a16;
  --ink-2:#33413b;
  --ink-3:rgba(15,26,22,.55);
  --ink-4:rgba(15,26,22,.42);
  --line:rgba(15,26,22,.30);
  --line-2:rgba(15,26,22,.13);
  --line-3:rgba(15,26,22,.08);
  --green:#12855A;
  --green-hi:#37B37E;
  --green-deep:#0f7350;
  --green-wash:rgba(18,133,90,.07);
  --off:#f4f7f5;
  --f:'Archivo',system-ui,-apple-system,'Segoe UI',sans-serif;
  --fx:'Archivo Expanded','Archivo',system-ui,sans-serif;
  --fm:'Spline Sans Mono',ui-monospace,'SFMono-Regular',Menlo,monospace; /* teknik-çizim kot/ölçü annotasyonu */
  --wrap:1200px;
  --pad:clamp(20px,5vw,72px);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);font-family:var(--f);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;overflow-x:hidden;
}
::selection{background:var(--green);color:var(--off)}
a{color:inherit}
img,svg{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.measure{max-width:64ch}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:2px}

/* ---------------- NAV ---------------- */
.nav{position:sticky;top:0;z-index:40;background:rgba(237,240,239,.82);
  backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid var(--line-2)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none}
.brand .wm{font-family:var(--fx);font-weight:700;font-size:18px;letter-spacing:-.01em;color:var(--ink)}
.brand .wm b{font-weight:800}
.navlinks{display:flex;gap:32px;align-items:center}
.navlinks a{font-size:13.5px;font-weight:500;letter-spacing:.01em;color:var(--ink-2);text-decoration:none;transition:color .22s}
.navlinks a:hover,.navlinks a[aria-current]{color:var(--green)}
.navcta{font-size:13.5px;font-weight:600;color:var(--green);border:1px solid rgba(18,133,90,.42);
  border-radius:100px;padding:9px 18px;text-decoration:none;transition:.22s;white-space:nowrap}
.navcta:hover{background:var(--green);color:var(--off);border-color:var(--green)}
.navtoggle{display:none;background:none;border:0;cursor:pointer;padding:8px;color:var(--ink)}
@media(max-width:860px){
  .navlinks{position:fixed;inset:74px 0 auto 0;flex-direction:column;gap:0;background:var(--bg-2);
    border-bottom:1px solid var(--line-2);padding:8px 0;transform:translateY(-8px);opacity:0;
    pointer-events:none;transition:.24s}
  .navlinks.open{transform:none;opacity:1;pointer-events:auto}
  .navlinks a{padding:14px var(--pad);width:100%;font-size:15px}
  .navlinks .navcta{margin:10px var(--pad);text-align:center}
  .navtoggle{display:block}
}

/* ---------------- HERO ---------------- */
.hero{position:relative;overflow:hidden;
  background:radial-gradient(135% 105% at 15% -14%, #f6f9f7 0%, #e8ebe9 66%, #e4e8e6 100%)}
.hero-in{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,560px);gap:40px;
  align-items:center;padding-top:clamp(56px,7vw,104px);padding-bottom:clamp(48px,6vw,88px)}
.pill{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line);
  border-radius:100px;padding:7px 15px 7px 13px;margin-bottom:28px}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--green);display:block;flex:none}
.pill span{font-size:11.5px;font-weight:600;letter-spacing:.07em;color:var(--ink-2)}
h1{font-family:var(--fx);font-weight:700;font-size:clamp(2.3rem,1.4rem+3.4vw,3.4rem);
  line-height:1.06;letter-spacing:-.022em;color:var(--ink);text-wrap:balance}
h1 .g{color:var(--green)}
.lede{margin-top:24px;max-width:44ch;font-size:clamp(1rem,.96rem+.3vw,1.15rem);
  line-height:1.62;color:var(--ink-2)}
.lede b{color:var(--ink);font-weight:600}
.cta{margin-top:34px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.btn{font-size:14.5px;font-weight:600;color:var(--off);background:var(--green);border:none;
  border-radius:6px;padding:15px 28px;cursor:pointer;text-decoration:none;display:inline-flex;
  align-items:center;gap:9px;box-shadow:0 10px 26px -12px rgba(18,133,90,.6);transition:.22s}
.btn:hover{background:var(--green-deep);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:none;padding-left:0}
.link{font-size:14.5px;font-weight:600;color:var(--ink);text-decoration:none;display:inline-flex;align-items:center;gap:9px}
.link::after{content:"";width:28px;height:1.5px;background:currentColor;display:block;transform:scaleX(.57);transform-origin:left;transition:transform .22s}
.link:hover::after{transform:scaleX(1)}
.trust{margin-top:48px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:11px;font-weight:600;letter-spacing:.08em;color:var(--ink-4);text-transform:uppercase}
.trust s{width:8px;text-align:center;text-decoration:none;color:var(--green)}
@media(max-width:820px){
  .hero-in{grid-template-columns:1fr;gap:8px}
  .hero-draw{order:2;max-width:520px;margin-top:24px}
}

/* ---------------- MİMARİ-KESİT diagram (hero + reusable) ---------------- */
.draw svg{width:100%;height:auto;display:block}
.lv-line{stroke:var(--line);stroke-width:1}
.bm{stroke:var(--line);stroke-width:1.1;fill:none}
.elev{fill:var(--ink-4);font-family:var(--f);font-weight:600;font-size:10.5px;letter-spacing:.03em}
.lbl{fill:var(--ink-2);font-family:var(--f);font-weight:600;font-size:11px;letter-spacing:.13em}
.dim{stroke:var(--line);stroke-width:1}
.dim-tick{stroke:rgba(15,26,22,.5);stroke-width:1}
.dim-arrow{fill:var(--ink-2)}
.dim-txt{fill:var(--ink-4);font-family:var(--f);font-weight:600;font-size:10px;letter-spacing:.24em}
.grid-c{stroke:var(--line-2);stroke-width:1;fill:none}
.grid-l{stroke:var(--line-2);stroke-width:1;stroke-dasharray:2 7}
.grid-t{fill:var(--ink-4);font-family:var(--f);font-weight:600;font-size:10px}
.g-band{fill:var(--green-wash)}
.g-line{stroke:var(--green);stroke-width:2}
.g-line.anim{stroke-dasharray:492;stroke-dashoffset:492;animation:draw 1.15s cubic-bezier(.2,.72,.22,1) .5s forwards}
.g-bm{fill:var(--green)}
.g-elev{fill:var(--green);font-family:var(--f);font-weight:700;font-size:10.5px;letter-spacing:.03em}
.g-lbl{fill:var(--green);font-family:var(--f);font-weight:700;font-size:11.5px;letter-spacing:.14em}
.g-sub{fill:var(--green);font-family:var(--f);font-weight:600;font-size:9px;letter-spacing:.07em;opacity:.85}
.g-node{fill:var(--green)}
/* teknik-çizim konvansiyonu: kot-değerleri + ölçü + aks-etiketleri mono (mimari annotasyon) */
.elev,.g-elev,.dim-txt,.grid-t,.g-sub{font-family:var(--fm)}
.trust,.kicker,.foot-nav,.foot-code,.form-note{font-family:var(--f)}

/* ---------------- SECTIONS ---------------- */
section{padding:clamp(56px,7vw,104px) 0}
.sec-head{max-width:60ch;margin-bottom:clamp(32px,4vw,52px)}
.kicker{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--green);margin-bottom:16px}
h2{font-family:var(--fx);font-weight:700;font-size:clamp(1.7rem,1.2rem+1.8vw,2.5rem);line-height:1.12;
  letter-spacing:-.018em;text-wrap:balance}
h3{font-family:var(--fx);font-weight:700;font-size:clamp(1.15rem,1rem+.6vw,1.4rem);line-height:1.2;letter-spacing:-.01em}
.prose{font-size:clamp(1rem,.97rem+.2vw,1.1rem);line-height:1.72;color:var(--ink-2)}
.prose p+p{margin-top:1.1em}
.prose b,.prose strong{color:var(--ink);font-weight:600}
.lead-p{font-size:clamp(1.1rem,1rem+.6vw,1.35rem);line-height:1.5;color:var(--ink);font-weight:500;max-width:24ch}
.lp{margin-top:1.2em}
.lp+h3,h3+.lp{margin-top:1.6em}
.band{background:var(--bg-2);border-top:1px solid var(--line-3);border-bottom:1px solid var(--line-3)}

/* katman-şeridi: özellik satırları (kart-ızgara DEĞİL — kesit-çizgi dili) */
.strata{border-top:1px solid var(--line)}
.strata .row{display:grid;grid-template-columns:minmax(0,190px) minmax(0,1fr);gap:clamp(16px,4vw,56px);
  padding:clamp(26px,3vw,38px) 0;border-bottom:1px solid var(--line-2)}
.strata .row .k{font-family:var(--f);font-weight:700;font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--green)}
.strata .row h3{margin-bottom:10px}
.strata .row .prose{max-width:60ch}
@media(max-width:680px){.strata .row{grid-template-columns:1fr;gap:10px}}

/* adımlar: gerçek sıralı akış (numara = anlam, dekor değil) */
.steps{display:grid;gap:2px;counter-reset:s;border-top:1px solid var(--line)}
.step{display:grid;grid-template-columns:64px minmax(0,1fr);gap:clamp(16px,3vw,40px);
  padding:clamp(24px,3vw,36px) 0;border-bottom:1px solid var(--line-2)}
.step .n{counter-increment:s;font-family:var(--fx);font-weight:700;font-size:15px;color:var(--green);
  padding-top:2px}
.step .n::before{content:"0" counter(s)}
.step h3{margin-bottom:9px}
@media(max-width:680px){.step{grid-template-columns:1fr;gap:8px}}

/* senaryolar: asimetrik, tek-tip DEĞİL */
.cases{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1px;
  background:var(--line-2);border:1px solid var(--line-2)}
.case{background:var(--bg);padding:clamp(26px,3vw,38px)}
.case .k{font-family:var(--f);font-weight:700;font-size:11.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--green);margin-bottom:14px}
.case h3{margin-bottom:12px}
.case .prose{font-size:1rem;line-height:1.65}

/* AEO — "Merak edilenler" açık-metin (accordion DEĞİL, AI okur) */
.aeo{border-top:1px solid var(--line)}
.aeo-item{padding:clamp(24px,3vw,34px) 0;border-bottom:1px solid var(--line-2)}
.aeo-item h3{font-size:clamp(1.05rem,1rem+.4vw,1.25rem);margin-bottom:12px}
.aeo-item .prose{max-width:70ch}

/* CTA blok */
.cta-band{text-align:center}
.cta-band h2{margin-bottom:14px}
.cta-band .prose{margin:0 auto 30px;max-width:52ch}
.cta-band .cta{justify-content:center}

/* ---------------- FORM (Fable-zinciri; sadece görsel) ---------------- */
.formwrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(32px,5vw,72px);align-items:start}
@media(max-width:820px){.formwrap{grid-template-columns:1fr}}
#contactForm{display:block}
.form-fields{display:grid;gap:18px}
.frow{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}
@media(max-width:560px){.frow{grid-template-columns:1fr}}
.field{display:grid;gap:7px}
.field label{font-size:12.5px;font-weight:600;letter-spacing:.02em;color:var(--ink-2)}
.field .req{color:var(--green)}
.field input,.field textarea,.field select{font-family:var(--f);font-size:15px;color:var(--ink);
  background:var(--bg-2);border:1px solid var(--line);border-radius:6px;padding:13px 15px;width:100%;transition:.18s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--green);
  box-shadow:0 0 0 3px var(--green-wash)}
.field textarea{min-height:138px;resize:vertical;line-height:1.5}
.tel-row{display:grid;grid-template-columns:118px 1fr;gap:10px}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-foot{margin-top:22px;display:grid;gap:14px}
.form-foot .btn{justify-content:center;width:100%}
.form-note{font-size:12px;line-height:1.55;color:var(--ink-4)}
.form-note a{color:var(--green);text-underline-offset:2px}
.pow{height:2px;background:var(--line-2);border-radius:2px;overflow:hidden;margin-top:14px;opacity:0;transition:opacity .25s}
.pow.on{opacity:1}
.pow i{display:block;height:100%;width:100%;transform-origin:left;transform:scaleX(var(--p,0));background:linear-gradient(90deg,var(--green),var(--green-hi));transition:transform .16s linear}
.status{font-size:13.5px;line-height:1.55;font-weight:500;min-height:20px;margin-top:14px;opacity:0;transition:opacity .2s}
.status.on{opacity:1}
.status[data-kind="fail"]{color:#b0402b}
.status[data-kind="done"]{color:var(--green)}
.status[data-kind="work"]{color:var(--ink-3)}
.status .stamp{display:block;margin-top:6px;font-size:11px;letter-spacing:.04em;color:var(--ink-4)}
.contact-aside .k{font-family:var(--f);font-weight:700;font-size:11.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--green);margin-bottom:16px}
.contact-aside .prose{margin-bottom:22px}
.contact-aside a.big{font-family:var(--fx);font-weight:700;font-size:clamp(1.3rem,1.1rem+1vw,1.7rem);color:var(--ink);text-decoration:none;display:inline-block;margin-bottom:6px}
.contact-aside .row2{margin-top:26px;padding-top:22px;border-top:1px solid var(--line-2)}

/* ---------------- FOOTER (aile-kanon) ---------------- */
.foot{background:#0e1512;color:rgba(236,239,237,.72);padding:clamp(48px,6vw,72px) 0 clamp(26px,3vw,40px)}
.foot a{color:rgba(236,239,237,.72);text-decoration:none;transition:color .2s}
.foot a:hover{color:var(--green-hi)}
.foot .wrap{display:flex;flex-wrap:wrap;gap:28px 56px;justify-content:space-between;align-items:flex-start}
.foot-nav{display:flex;flex-wrap:wrap;gap:12px 28px;list-style:none;font-family:var(--f);font-size:12.5px;font-weight:600;
  letter-spacing:.05em;text-transform:uppercase;flex:1 1 300px;max-width:38rem;align-content:flex-start}
.foot-code{font-family:var(--f);font-size:12.5px;line-height:1.9;letter-spacing:.02em;color:rgba(236,239,237,.5);text-align:left;flex:0 1 27rem;min-width:16rem}
.foot-code b{color:rgba(236,239,237,.82);font-weight:700}
.foot-code a{color:rgba(236,239,237,.72);text-decoration:underline;text-underline-offset:2px}

/* ---------------- COOKIE (.ck) ---------------- */
.ck{position:fixed;left:0;right:0;bottom:0;z-index:60;background:#0e1512;color:rgba(236,239,237,.82);
  display:none;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap;
  padding:16px var(--pad);border-top:1px solid rgba(55,179,126,.3)}
.ck.show{display:flex}
.ck p{font-size:13px;line-height:1.55;max-width:70ch;color:rgba(236,239,237,.7)}
.ck p a{color:var(--green-hi)}
.ck-btns{display:flex;gap:10px;flex:none}
.ck button{font-family:var(--f);font-size:13px;font-weight:600;border-radius:5px;padding:10px 18px;cursor:pointer;border:1px solid rgba(236,239,237,.24);background:transparent;color:rgba(236,239,237,.82);transition:.2s}
.ck button.acc{background:var(--green);border-color:var(--green);color:var(--off)}
.ck button:hover{border-color:var(--green-hi)}

/* ---------------- 404 ---------------- */
.e404{min-height:66vh;display:grid;place-content:center;text-align:center;gap:18px;padding:80px var(--pad)}
.e404 .big{font-family:var(--fx);font-weight:800;font-size:clamp(3rem,10vw,6rem);color:var(--green);line-height:1}

/* ---------------- MOTION ---------------- */
.fx{opacity:0;transform:translateY(16px);animation:rise .85s cubic-bezier(.22,.68,.28,1) both}
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.72,.22,1),transform .7s cubic-bezier(.2,.72,.22,1)}
.rv.in{opacity:1;transform:none}
@keyframes rise{to{opacity:1;transform:none}}
@keyframes slide{to{opacity:1;transform:none}}
@keyframes draw{to{stroke-dashoffset:0}}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto}
  .fx,.rv,.g-line.anim{animation:none!important;transition:none!important;opacity:1!important;transform:none!important;stroke-dashoffset:0!important}
}