/* =========================================================
   Temel
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  font-variation-settings: "wdth" 100;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
ul { list-style: none; padding: 0; }
::selection { background: var(--blue); color: var(--white); }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }

.container { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.narrow { max-width: 760px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 100; padding: 10px 16px; background: var(--ink); color: var(--white); border-radius: var(--radius); }
.skip:focus { top: 12px; }

/* =========================================================
   Tipografi
   ========================================================= */
h1, h2, h3, h4, h5, h6, .display, .h2, .h3 { font-family: var(--font-heading); font-synthesis: none; }
.brand, .footer-brand { font-family: var(--font-brand); }
.display, .h2, .h3 { font-weight: 700; color: var(--ink); text-wrap: balance; }
.display { font-size: var(--fs-display); line-height: 1.04; letter-spacing: -.015em; }
.h2 { font-size: var(--fs-h2); line-height: 1.08; letter-spacing: -.015em; }
.h3 { font-size: var(--fs-h3); line-height: 1.15; letter-spacing: -.01em; }
.lead { font-size: var(--fs-lead); line-height: 1.55; color: var(--graphite); max-width: 38em; text-wrap: pretty; }
.code {
  font-family: var(--font-heading);
  font-size: var(--fs-code);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: .09em;
  text-transform: uppercase;
  font-variation-settings: "wdth" 62;
}

/* =========================================================
   Butonlar ve bağlantılar
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 14px 22px;
  border-radius: var(--radius);
  font-size: 1rem; font-weight: 650; line-height: 1.2;
  font-variation-settings: "wdth" 105;
  transition: background-color .2s, color .2s, box-shadow .2s;
}
.btn .icon { transition: transform .25s var(--ease); }
.btn:hover .icon { transform: translateX(3px); }
.btn--primary { background: var(--red); color: var(--white); }
.btn--primary:hover { background: var(--red-deep); }
.btn--secondary { box-shadow: inset 0 0 0 1.5px var(--ink); color: var(--ink); }
.btn--secondary:hover { background: var(--ink); color: var(--white); }
.btn--sm { min-height: 42px; padding: 10px 16px; font-size: .9375rem; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }

.link-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-weight: 650; }
.link-arrow .icon { transition: transform .25s var(--ease); }
.link-arrow:hover .icon { transform: translateX(3px); }

.chip { display: inline-block; width: 14px; height: 26px; background: var(--ral); flex: none; }
.chip--sm { width: 8px; height: 16px; }

/* =========================================================
   Header
   ========================================================= */
.site-header { position: sticky; top: 0; z-index: 40; background: var(--paper); }

/* Ana sayfada en üstteyken header hero'nun parçası gibi şeffaftır; kaydırınca ya da menü açılınca dolar */
.site-header[data-over] { background: transparent; transition: color .3s; }
.site-header[data-over] .site-header__bar { transition: background-color .3s, border-color .3s; }
.site-header[data-over]:not(.is-solid) { color: var(--white); }
.site-header[data-over]:not(.is-solid) .site-header__bar { background: transparent; border-bottom-color: rgb(255 255 255 / 18%); }
.site-header[data-over]:not(.is-solid) .brand__mark { color: var(--white); }
.site-header[data-over]:not(.is-solid) .site-nav__link:hover { color: var(--white); }
.site-header[data-over]:not(.is-solid) .site-nav__link::after { background: var(--white); }
.site-header[data-over]:not(.is-solid) .header-tel small { color: var(--white); }
.site-header[data-over]:not(.is-solid) .site-header__bar .btn--primary { background: var(--white); color: var(--red); }
.site-header[data-over]:not(.is-solid) .site-header__bar .btn--primary:hover { background: var(--paper); color: var(--red-deep); }
.site-header[data-over]:not(.is-solid) .header-tel:hover b { color: var(--white); }
.site-header[data-over]:not(.is-solid) :focus-visible { outline-color: var(--white); }
.site-header__bar { position: relative; z-index: 2; background: var(--paper); border-bottom: 1px solid var(--line); }
.site-header__row { display: flex; align-items: center; gap: 48px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand__mark { color: var(--blue); }
.brand__word { font-size: 1.625rem; font-weight: 900; letter-spacing: -.02em; font-variation-settings: "wdth" 125; line-height: 1; }

.site-nav { display: flex; align-self: stretch; }
.site-nav__link {
  position: relative; display: inline-flex; align-items: center; gap: 6px;
  padding: 0 16px; font-size: .9375rem; font-weight: 550;
  transition: color .2s;
}
.site-nav__link::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: -1px; height: 2px;
  background: var(--blue); transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.site-nav__link:hover, .site-nav__link[aria-expanded="true"] { color: var(--blue); }
.site-nav__link:hover::after, .site-nav__link[aria-expanded="true"]::after, .site-nav__link[aria-current="page"]::after { transform: scaleX(1); }
.site-nav__link .icon { transition: transform .3s var(--ease); }
.site-nav__link[aria-expanded="true"] .icon { transform: rotate(180deg); }

/* Kurumsal: iki sayfalık, kompakt alt menü. */
.nav-group { position: relative; display: flex; }
.nav-group__links { position: absolute; top: 100%; left: 0; width: 260px; padding: 8px 20px; background: var(--white); color: var(--ink); border: 1px solid var(--line); }
.nav-group__links[hidden] { display: none; }
.nav-group__links li + li { border-top: 1px solid var(--line-soft); }
.nav-group__links a { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 16px; font-weight: 600; }
.nav-group__links a:hover, .nav-group__links a[aria-current="page"] { color: var(--blue); }
.nav-group__links a:focus-visible { outline-color: var(--blue); }

.site-header__end { margin-left: auto; display: flex; align-items: center; gap: 22px; }
.header-tel { display: grid; line-height: 1.15; text-align: right; }
.header-tel small { font-size: .75rem; color: var(--graphite); font-weight: 500; }
.header-tel b { font-size: 1.0625rem; font-weight: 700; letter-spacing: .02em; font-variation-settings: "wdth" 85; white-space: nowrap; }
.header-tel:hover b { color: var(--blue); }

/* Ürünler paneli: aile listesi + detay + görsel */
.mega {
  position: absolute; left: 0; right: 0; top: 100%; z-index: 1;
  background: var(--white); border-bottom: 1px solid var(--line);
  box-shadow: 0 24px 48px -12px rgb(20 32 43 / 18%);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity .22s, transform .3s var(--ease), visibility 0s .3s;
}
.mega.is-open { opacity: 1; visibility: visible; transform: none; transition: opacity .22s, transform .3s var(--ease), visibility 0s; }
.mega__grid { display: grid; grid-template-columns: 312px minmax(0, 1fr) 380px; min-height: 400px; }
.mega__list { padding: 24px 0; border-right: 1px solid var(--line-soft); }
.mega__tab {
  display: grid; grid-template-columns: 22px minmax(0, 1fr); align-items: center; gap: 14px;
  width: 100%; padding: 12px 24px 12px 0; text-align: left; font-weight: 600;
  transition: color .15s;
}
/* Şeridin genişleyen hali için yer ayrılır; vurgu büyürken metin yerinde kalır. */
.mega__tab .chip { width: 22px; height: 22px; transform: scaleX(.454545); transform-origin: left center; transition: transform .25s var(--ease); }
.mega__tab:hover, .mega__tab[data-selected="true"] { color: var(--blue); }
.mega__tab[data-selected="true"] .chip { transform: scaleX(1); }
.mega__pane { display: none; padding: 32px 40px; }
.mega__pane.is-active { display: flex; flex-direction: column; }
.mega__title { margin-bottom: 10px; }
.mega__summary { color: var(--graphite); max-width: 36em; margin-bottom: 24px; }
.mega__links { display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; border-top: 1px solid var(--line-soft); }
.mega__links a { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line-soft); font-weight: 500; transition: color .15s; }
.mega__links a .icon { opacity: 0; transform: translateX(-4px); transition: opacity .2s, transform .25s var(--ease); }
.mega__links a:hover { color: var(--blue); }
.mega__links a:hover .icon { opacity: 1; transform: none; }
.mega__pane .link-arrow { margin-top: auto; padding-top: 24px; }
.mega__media { position: relative; background: var(--ral); }
.mega__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.mega__foot { display: flex; justify-content: space-between; align-items: center; padding: 18px 0; border-top: 1px solid var(--line-soft); font-size: var(--fs-small); color: var(--graphite); }
.mega__foot .link-arrow { font-size: .9375rem; }

.scrim {
  position: fixed; inset: 0; z-index: 30; background: rgb(20 32 43 / 28%);
  opacity: 0; visibility: hidden; transition: opacity .25s, visibility 0s .25s;
}
.scrim.is-on { opacity: 1; visibility: visible; transition: opacity .25s, visibility 0s; }

/* Mobil menü */
.nav-toggle { display: none; width: 48px; height: 48px; align-items: center; justify-content: center; margin-right: -12px; }
.nav-toggle__close { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__open { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__close { display: block; }
.mnav { display: none; }

@media (max-width: 1180px) {
  .header-tel { display: none; }
  .site-nav__link { padding: 0 11px; }
  .site-nav__link::after { left: 11px; right: 11px; }
  .mega__grid { grid-template-columns: 272px minmax(0, 1fr); }
  .mega__media { display: none; }
}
@media (max-width: 1023px) {
  :root { --header-h: 68px; }
  .site-nav, .mega { display: none; }
  .site-header__end { gap: 12px; }
  .nav-toggle { display: inline-flex; }
  .mnav {
    position: fixed; inset: var(--header-h) 0 0 0; z-index: 39; overflow-y: auto;
    background: var(--paper); padding: 8px var(--gutter) 28px;
    flex-direction: column;
  }
  .mnav.is-open { display: flex; }
  .mnav__label { margin: 20px 0 4px; color: var(--graphite); }
  .mnav__fam { border-bottom: 1px solid var(--line); }
  .mnav__fam > button { display: flex; width: 100%; align-items: center; gap: 12px; padding: 16px 0; font-size: 1.125rem; font-weight: 650; text-align: left; }
  .mnav__fam > button .icon { margin-left: auto; transition: transform .25s var(--ease); }
  .mnav__fam > button[aria-expanded="true"] .icon { transform: rotate(45deg); }
  .mnav__fam ul { display: none; padding: 0 0 14px 26px; }
  .mnav__fam ul.is-open { display: grid; }
  .mnav__fam ul a { display: block; padding: 8px 0; color: var(--graphite); }
  .mnav__main a { display: block; padding: 14px 0; font-size: 1.375rem; font-weight: 700; font-variation-settings: "wdth" 110; border-bottom: 1px solid var(--line); }
  .mnav__group { padding-top: 24px; }
  .mnav__group > p { color: var(--graphite); font-size: var(--fs-small); }
  .mnav__group a { font-size: 1.125rem; font-weight: 600; font-variation-settings: "wdth" 100; }
  .mnav__group a[aria-current="page"] { color: var(--blue); }
  .mnav__cta { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: auto; padding-top: 28px; }
  body.nav-open { overflow: hidden; }
}
@media (max-width: 359px) {
  .site-header__end .btn { display: none; }
}

/* =========================================================
   Bölümler
   ========================================================= */
.section { padding-block: var(--section); }
/* Aynı zemindeki ardışık bölümler tek boşlukla ayrılır (iki kat boşluk bölümleri kopuk gösterir) */
.section + .section { padding-top: 0; }
.section-head__side { display: grid; gap: 18px; justify-items: start; }
.section-head {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px 56px; align-items: end;
  margin-bottom: clamp(32px, 4vw, 56px);
}
.section-head__text { color: var(--graphite); font-size: var(--fs-lead); line-height: 1.55; max-width: 34em; }
@media (max-width: 800px) { .section-head { grid-template-columns: 1fr; } }


.section--todo { padding-block: 32px; }
.todo { padding: 36px; border: 1.5px dashed var(--line); color: var(--graphite); text-align: center; }

/* =========================================================
   Hero: ozalit üzerinde ürün çizimleri
   ========================================================= */
/* Hero, şeffaf header'ın altından başlar: header yüksekliği kadar yukarı çekilir */
.hero {
  position: relative; overflow: hidden;
  margin-top: calc(-1 * var(--header-h));
  min-height: clamp(calc(640px + var(--header-h)), 100svh, calc(900px + var(--header-h)));
  display: flex; align-items: center;
  padding-top: calc(var(--header-h) + clamp(40px, 5vw, 72px));
  padding-bottom: calc(clamp(48px, 6vw, 88px) + var(--bridge-lap));
  background-color: var(--blueprint);
  color: var(--white);
}
.hero :focus-visible { outline-color: var(--white); }

/* Pafta çerçevesi ve bölge işaretleri */
.hero__sheet { position: absolute; inset: calc(var(--header-h) + 12px) 16px 16px; border: 1px solid rgb(255 255 255 / 28%); pointer-events: none; }
.hero__zones { position: absolute; display: flex; justify-content: space-around; color: var(--bp-dim); font-size: .6875rem; font-weight: 600; font-variation-settings: "wdth" 62; }
.hero__zones i { font-style: normal; }
.hero__zones--x { left: 0; right: 0; top: 2px; }
.hero__zones--y { top: 0; bottom: 0; left: 4px; flex-direction: column; }

.hero__grid { position: relative; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 4vw, 72px); align-items: center; }
.hero__title { color: var(--white); font-size: clamp(2.6rem, 1.5rem + 3.4vw, 4.5rem); }
.hero__lead { margin: 24px 0 36px; max-width: 32em; font-size: var(--fs-lead); line-height: 1.55; color: var(--bp-text); }
.hero__segs { display: flex; flex-wrap: wrap; gap: 14px 32px; margin-top: 44px; padding-top: 22px; border-top: 1px solid rgb(255 255 255 / 22%); font-size: var(--fs-small); }
.hero__segs dt { font-weight: 650; color: var(--white); }
.hero__segs dd { margin: 0; color: var(--bp-text); }

.btn--light { box-shadow: inset 0 0 0 1.5px var(--white); color: var(--white); }
.btn--light:hover { background: var(--white); color: var(--blueprint); }

/* Çizim panosu */
.draw-board { position: relative; }
.draw-board > svg { display: block; width: 100%; height: auto; overflow: visible; }
.draw-board [hidden] { display: none; }
.draw-board .ln { fill: none; stroke: var(--bp-line); stroke-width: 1.6; }
.draw-board .thin { stroke-width: 1; opacity: .55; }
.draw-board .fill { fill: var(--blueprint); }
.draw-board .dim { fill: none; stroke: var(--bp-dim); stroke-width: 1; vector-effect: non-scaling-stroke; }
.draw-board .dim-t { fill: var(--bp-dim); font: 600 11px var(--font); letter-spacing: .08em; text-transform: uppercase; font-variation-settings: "wdth" 62; }
.draw-board .call-t { fill: var(--white); font: 600 12px var(--font); letter-spacing: .06em; text-transform: uppercase; font-variation-settings: "wdth" 70; }
.draw-board .dot { fill: var(--bp-dim); }
.draw-board .arm-r { fill: var(--red); }

.draw-board .photo { opacity: 0; transition: opacity .9s .25s; }
.draw-board .mv { transition: transform 1.6s cubic-bezier(.65, 0, .25, 1); transform-box: view-box; }
.draw-board .arm { transform-origin: 140px 330px; }
.draw-board.is-open .photo { opacity: 1; }
.draw-board.is-open .mv-up { transform: translateY(-410px); }
.draw-board.is-open .mv-left { transform: translateX(-212px); }
.draw-board.is-open .mv-right { transform: translateX(212px); }
.draw-board.is-open .arm { transform: rotate(-84deg); }

/* Çizgilerin çizilmesi: pathLength=1 ile 0'dan tam boya */
.draw-board .draw { stroke-dasharray: 1; stroke-dashoffset: 0; transition: stroke-dashoffset 1.2s cubic-bezier(.4, 0, .2, 1); }
.draw-board.is-pre .draw { stroke-dashoffset: 1; transition: none; }
.draw-board .lbl { transition: opacity .5s .9s; }
.draw-board.is-pre .lbl { opacity: 0; transition: none; }

.titleblock {
  display: flex; align-items: stretch; width: fit-content; margin: 6px 0 0 auto;
  border: 1px solid var(--white); background: var(--blueprint);
  font-size: .8125rem; transition: background-color .2s, color .2s;
}
.titleblock > span { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-right: 1px solid var(--white); }
.titleblock > span:last-child { border-right: 0; font-weight: 600; }
.titleblock:hover { background: var(--white); color: var(--blueprint); }
.titleblock:hover > span { border-color: var(--blueprint); }

.board-tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 14px; border: 1px solid rgb(255 255 255 / 40%); }
.board-tabs button {
  position: relative; padding: 14px 10px; font-size: .875rem; font-weight: 600; color: var(--bp-text);
  border-right: 1px solid rgb(255 255 255 / 40%); transition: background-color .2s, color .2s;
}
.board-tabs button:last-child { border-right: 0; }
.board-tabs button:hover { color: var(--white); }
.board-tabs button[aria-pressed="true"] { background: var(--white); color: var(--blueprint); }
.board-tabs__bar { position: absolute; left: 0; bottom: 0; height: 3px; width: 0; background: var(--red); }
.board-tabs button[aria-pressed="true"] .board-tabs__bar.is-running { animation: board-progress var(--scene-ms, 6000ms) linear forwards; }
.hero.is-paused .board-tabs__bar.is-running { animation-play-state: paused; }
@keyframes board-progress { to { width: 100%; } }

@media (max-width: 1023px) {
  .hero { min-height: 0; }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__sheet { display: none; }
}
@media (max-width: 600px) {
  .board-tabs { grid-template-columns: 1fr 1fr; }
  .board-tabs button:nth-child(2) { border-right: 0; }
  .board-tabs button:nth-child(-n+2) { border-bottom: 1px solid rgb(255 255 255 / 40%); }
  .titleblock { margin: 12px 0 0; }
  .titleblock > span:first-child { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .board-tabs__bar { display: none; }
}

/* =========================================================
   Tek elden: hero'nun alt kenarına taşan pafta künyesi
   (hero ile ürünler arasında durağan köprü)
   ========================================================= */
.bridge { position: relative; z-index: 1; margin-top: calc(-1 * var(--bridge-lap)); }
.bridge + .section { padding-top: clamp(56px, 6vw, 96px); }
.bridge__sheet {
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 3fr);
  background: var(--white); border: 1px solid var(--line);
}
.bridge__intro { display: flex; flex-direction: column; gap: 14px; padding: clamp(24px, 2.6vw, 36px); border-right: 1px solid var(--line); }
.bridge__title { font-size: clamp(1.5rem, 1.2rem + .8vw, 1.875rem); line-height: 1.08; font-weight: 800; letter-spacing: -.025em; font-variation-settings: "wdth" 112; text-wrap: balance; }
.bridge__intro p { color: var(--graphite); }
.bridge__intro .link-arrow { margin-top: auto; }
.bridge__facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.bridge__fact { display: flex; flex-direction: column; gap: 8px; padding: clamp(24px, 2.6vw, 36px) clamp(18px, 2vw, 28px); border-right: 1px solid var(--line); }
.bridge__fact:last-child { border-right: 0; }
.bridge__fact strong { font-size: 1.0625rem; font-weight: 700; line-height: 1.25; }
.bridge__fact span { color: var(--graphite); font-size: var(--fs-small); line-height: 1.5; }
.bridge__draw { margin-bottom: 10px; stroke: var(--ink); stroke-width: 1.6; stroke-linejoin: round; }
.bridge__draw .d { stroke: var(--blue); }

@media (max-width: 1100px) {
  .bridge__sheet { grid-template-columns: 1fr; }
  .bridge__intro { border-right: 0; border-bottom: 1px solid var(--line); }
}
@media (max-width: 700px) {
  .bridge__facts { grid-template-columns: 1fr 1fr; }
  .bridge__fact:nth-child(2) { border-right: 0; }
  .bridge__fact:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

/* =========================================================
   Kartela (ürün aileleri)
   ========================================================= */
.kartela {
  --tab: 84px;
  display: flex; gap: 3px;
  height: clamp(540px, 74vh, 700px);
}
.kartela__strip {
  position: relative; overflow: hidden;
  flex: 0 0 var(--tab);
  background: var(--ral);
  color: var(--white);
  transition: flex-grow .6s var(--ease);
}
.kartela__strip[data-ink="dark"] { color: #0E0E10; }
.kartela__strip[data-open="true"] { flex-grow: 1; }

.kartela__heading { font: inherit; }
.kartela__tab { position: absolute; inset: 0; z-index: 1; width: 100%; text-align: left; }
.kartela__strip[data-open="true"] .kartela__tab { inset: 0 0 auto 0; height: auto; cursor: default; }
.kartela__tab:focus-visible { outline: 2px solid currentColor; outline-offset: -6px; }

.kartela__v {
  position: absolute; inset: 22px 0 24px 0;
  display: flex; flex-direction: column; justify-content: flex-end; align-items: center;
  transition: opacity .2s;
}
.kartela__vname {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font-size: 1.375rem; font-weight: 700; letter-spacing: -.01em; white-space: nowrap;
  font-variation-settings: "wdth" 105;
}
.kartela__strip:not([data-open="true"]):hover .kartela__v { opacity: .78; }
.kartela__strip[data-open="true"] .kartela__v { opacity: 0; }

.kartela__h {
  display: flex; flex-direction: column; gap: 10px;
  padding: clamp(24px, 2.6vw, 36px) clamp(24px, 2.6vw, 40px) 0;
  opacity: 0; transition: opacity .25s;
}
.kartela__strip[data-open="true"] .kartela__h { opacity: 1; transition-delay: .25s; }
.kartela__name {
  font-size: var(--fs-h3); line-height: 1.05; font-weight: 800; letter-spacing: -.025em;
  font-variation-settings: "wdth" 115; white-space: nowrap;
}

.kartela__panel {
  position: absolute; inset: 0;
  display: grid; grid-template-columns: minmax(300px, 1fr) minmax(0, 1.15fr); gap: clamp(24px, 3vw, 48px);
  padding: clamp(96px, 9vw, 122px) clamp(24px, 2.6vw, 40px) clamp(24px, 2.6vw, 40px);
  min-width: 760px;
  visibility: hidden; opacity: 0;
  transition: opacity .3s, visibility 0s .3s;
}
.kartela__strip[data-open="true"] .kartela__panel { visibility: visible; opacity: 1; transition: opacity .35s .25s, visibility 0s; }

.kartela__info { display: flex; flex-direction: column; gap: 22px; }
.kartela__summary { font-size: var(--fs-lead); line-height: 1.5; max-width: 26em; }
.kartela__items { display: grid; gap: 0; border-top: 1px solid color-mix(in srgb, currentColor 28%, transparent); }
.kartela__items li { padding: 9px 0; border-bottom: 1px solid color-mix(in srgb, currentColor 28%, transparent); font-weight: 500; }
.kartela__more { margin-top: auto; display: inline-flex; align-items: center; gap: 8px; font-weight: 700; align-self: flex-start; padding-block: 6px; }
.kartela__more .icon { transition: transform .25s var(--ease); }
.kartela__more:hover .icon { transform: translateX(4px); }
.kartela__photo { min-height: 0; overflow: hidden; }
.kartela__photo img { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 1023px) {
  .kartela { flex-direction: column; height: auto; gap: 3px; }
  .kartela__strip { flex: none; transition: none; }
  .kartela__tab, .kartela__strip[data-open="true"] .kartela__tab { position: relative; inset: auto; display: block; min-height: 68px; cursor: pointer; }
  .kartela__v { display: none; }
  .kartela__h { opacity: 1; flex-direction: row; align-items: center; padding: 20px; }
  .kartela__strip[data-open="true"] .kartela__h { align-items: flex-start; flex-direction: column; padding-bottom: 8px; }
  .kartela__name { font-size: 1.25rem; white-space: normal; }
  .kartela__strip[data-open="true"] .kartela__name { font-size: var(--fs-h3); }
  .kartela__panel { position: static; display: none; min-width: 0; grid-template-columns: 1fr; padding: 8px 20px 24px; opacity: 1; visibility: visible; transition: none; }
  .kartela__strip[data-open="true"] .kartela__panel { display: grid; }
  .kartela__photo { order: -1; aspect-ratio: 16 / 10; }
}

/* =========================================================
   Projeler ("Bitirdiğimiz işler") + referans şeridi
   Kutusuz açık düzen: çerçeveli pafta dili yalnızca "Tek elden"de.
   ========================================================= */
.works { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 40px 24px; }
.work { display: flex; flex-direction: column; gap: 14px; }
.work:nth-child(1) { grid-column: span 7; grid-row: span 2; }
.work:nth-child(2), .work:nth-child(3) { grid-column: span 5; }
.work:nth-child(4), .work:nth-child(5) { grid-column: span 6; }
.work__fig { position: relative; flex: 1; min-height: 240px; overflow: hidden; background: var(--line-soft); }
.work:nth-child(1) .work__fig { min-height: 480px; }
.work__fig img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.work:hover .work__fig img { transform: scale(1.03); }
.work__demo { position: absolute; left: 12px; top: 12px; z-index: 1; padding: 5px 9px; background: var(--white); color: var(--ink); }
.work__cap { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 16px; align-items: baseline; }
.work__no { color: var(--graphite); }
.work__title b { display: block; font-size: 1.0625rem; font-weight: 700; transition: color .2s; }
.work__title > span { font-size: var(--fs-small); color: var(--graphite); }
.work__fam { display: inline-flex; align-items: center; gap: 8px; font-size: var(--fs-small); font-weight: 600; white-space: nowrap; }
.work:hover .work__title b { color: var(--blue); }

.refs {
  display: grid; grid-template-columns: minmax(220px, 1fr) minmax(0, 3fr); gap: 24px 48px; align-items: center;
  margin-top: clamp(48px, 5vw, 72px); padding-top: clamp(28px, 3vw, 40px); border-top: 1px solid var(--line);
}
.refs__label { display: grid; gap: 8px; justify-items: start; }
.refs__title { font-size: 1.375rem; font-weight: 800; letter-spacing: -.02em; font-variation-settings: "wdth" 112; }
.refs__label p { color: var(--graphite); font-size: var(--fs-small); max-width: 26em; }
.refs__logos { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 24px; }
.refs__logo { display: grid; place-items: center; height: 64px; }
.refs__logo img { max-width: 100%; max-height: 48px; object-fit: contain; filter: grayscale(1); opacity: .7; transition: filter .3s, opacity .3s; }
.refs__logo img:hover { filter: none; opacity: 1; }
.refs__ph { display: grid; place-items: center; width: 100%; height: 52px; background: var(--line-soft); color: var(--graphite); }

@media (max-width: 1023px) {
  .work:nth-child(n) { grid-column: 1 / -1; grid-row: auto; }
  .work:nth-child(1) .work__fig { min-height: 300px; }
  .work__fig { min-height: 240px; }
  .refs { grid-template-columns: 1fr; }
  .refs__logos { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .refs__logos { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  /* Dar ekranda aile adı gizlenir, renk çipi kalır (ekran okuyucu adı okumaya devam eder) */
  .work__famname { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}

/* =========================================================
   Servis bandı: hero'nun ozalit mavisi sayfa sonuna doğru bir kez daha
   (bilinçli istisna; başı ve sonu bağlar). Kutusuz, tam genişlik şerit.
   ========================================================= */
.service-band { background: var(--blueprint); color: var(--white); }
.service-band :focus-visible { outline-color: var(--white); }
.service-band__row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: clamp(28px, 4vw, 64px); align-items: center; padding-block: clamp(44px, 4.5vw, 64px); }
.service-band__draw { width: 160px; height: auto; stroke: var(--white); stroke-width: 1.6; stroke-linejoin: round; }
.service-band__draw .d { stroke: var(--bp-dim); stroke-width: 1; }
.service-band__draw .w { stroke: var(--red); }
.service-band__title { font-size: var(--fs-h2); line-height: 1.04; font-weight: 800; letter-spacing: -.03em; font-variation-settings: "wdth" 115; text-wrap: balance; }
.service-band__copy p { margin-top: 12px; max-width: 36em; color: var(--bp-text); }
.service-band__ways { display: grid; gap: 18px; }
.service-band__way { display: grid; gap: 6px; justify-items: start; }
.service-band__way .code { color: var(--bp-dim); }
.service-band__tel { font-size: clamp(1.75rem, 1.3rem + 1.6vw, 2.5rem); font-weight: 800; letter-spacing: .01em; line-height: 1.2; font-variation-settings: "wdth" 90; border-bottom: 2px solid var(--red); }
.service-band__tel:hover { color: var(--bp-text); }
.btn.is-pending { cursor: default; opacity: .75; }
.btn.is-pending:hover { background: none; color: var(--white); }
/* Bant, kendisinden sonra gelen bölüme kendi boşluğunu bırakır */
.service-band + .section { padding-top: var(--section); }

@media (max-width: 1023px) {
  .service-band__row { grid-template-columns: 1fr; }
  .service-band__draw { width: 120px; }
}

/* =========================================================
   Footer
   ========================================================= */
/* Seçilen kapanış: A, İki kapı. Önizlemedeki ölçüler korunur. */
.duo { background: var(--blueprint); color: var(--white); }
.duo :focus-visible { outline-color: var(--white); }
.duo__grid { display: grid; grid-template-columns: 1fr 1fr; }
.duo__half { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 8px 28px; align-content: start; padding-block: clamp(48px, 5vw, 72px); }
.duo__half:first-child { padding-right: clamp(28px, 4vw, 64px); border-right: 1px solid rgb(255 255 255 / 22%); }
.duo__half:last-child { padding-left: clamp(28px, 4vw, 64px); }
.duo__draw { grid-row: span 3; width: 96px; height: auto; stroke: var(--white); stroke-width: 1.6; stroke-linejoin: round; }
.duo__draw .d { stroke: var(--bp-dim); stroke-width: 1; }
.duo__draw .w { stroke: var(--red); }
.duo h2 { font-size: clamp(1.75rem, 1.3rem + 1.4vw, 2.5rem); line-height: 1.06; font-weight: 800; letter-spacing: -.025em; font-variation-settings: "wdth" 112; }
.duo p { color: var(--bp-text); max-width: 30em; }
.duo .actions { margin-top: 14px; }
.duo__tel { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 12px 32px; padding-block: 22px 26px; border-top: 1px solid rgb(255 255 255 / 22%); }
.duo__tel .code { color: var(--bp-dim); }
.duo__tel a { font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); font-weight: 800; letter-spacing: .01em; font-variation-settings: "wdth" 90; border-bottom: 2px solid var(--red); }
.duo__tel a:hover { color: var(--bp-text); }

@media (max-width: 1023px) {
  .duo__grid { grid-template-columns: 1fr; }
  .duo__half:first-child { padding-right: 0; border-right: 0; border-bottom: 1px solid rgb(255 255 255 / 22%); }
  .duo__half:last-child { padding-left: 0; }
}
@media (max-width: 600px) {
  .duo__half { grid-template-columns: 1fr; }
  .duo__draw { grid-row: auto; width: 72px; }
}
.site-footer { background: var(--ink); color: var(--on-dark); }
.site-footer :focus-visible { outline-color: var(--white); }
.footer-masthead { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding-block: 32px; border-bottom: 1px solid rgb(255 255 255 / 14%); }
.footer-brand { display: inline-flex; align-items: center; gap: 12px; color: var(--white); }
.footer-brand > svg { flex: none; }
.footer-brand > span:not(.footer-brand__description) { font-size: var(--fs-h3); line-height: 1; letter-spacing: -.03em; font-weight: 900; font-variation-settings: "wdth" 115; }
.footer-brand__description { margin-left: 10px; padding-left: 22px; border-left: 1px solid rgb(255 255 255 / 22%); font-size: var(--fs-code); line-height: 1.6; color: var(--on-dark-muted); }
.footer-direct { display: flex; align-items: center; gap: clamp(32px, 4vw, 64px); }
.footer-direct a { display: grid; gap: 2px; min-height: 44px; }
.footer-direct span { font-size: var(--fs-code); color: var(--on-dark-muted); }
.footer-direct strong { font-size: var(--fs-body); font-weight: 600; color: var(--white); }
.footer-direct a:hover strong { text-decoration: underline; text-underline-offset: 5px; }
.footer-directory { display: grid; grid-template-columns: 1.6fr .8fr 1fr; gap: clamp(28px, 4vw, 64px); padding-block: 30px 32px; }
.footer-heading { margin-bottom: 12px; color: var(--white); font-size: var(--fs-body); line-height: 1.5; font-weight: 650; }
.footer-links { display: grid; }
.footer-links--products { grid-template-columns: 1fr 1fr; column-gap: 24px; }
.footer-links a { display: flex; align-items: center; min-height: 36px; padding-block: 7px; font-size: var(--fs-small); line-height: 1.5; color: var(--on-dark-muted); transition: color .2s; }
.footer-links a:hover { color: var(--white); text-decoration: underline; text-underline-offset: 5px; }
.footer-location address { font-size: var(--fs-small); font-style: normal; line-height: 1.8; max-width: 30ch; color: var(--on-dark-muted); }
.footer-map { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; margin-top: 8px; color: var(--on-dark); font-size: var(--fs-small); }
.footer-map:hover { text-decoration: underline; text-underline-offset: 5px; }
.footer-colophon { border-top: 1px solid rgb(255 255 255 / 14%); padding-block: 16px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-colophon > p { font-size: var(--fs-code); color: var(--on-dark-muted); }
.footer-credit { display: inline-flex; align-items: center; gap: 16px; min-height: 44px; flex: none; }
.footer-credit > span { font-size: var(--fs-code); color: var(--on-dark-muted); }
.footer-credit > img { width: 116px; height: auto; }
.footer-credit:hover > span { color: var(--white); }
@media (max-width: 1050px) {
  .footer-masthead { flex-wrap: wrap; gap: 24px; }
  .footer-direct { margin-left: auto; }
  .footer-directory { grid-template-columns: 1.3fr .85fr 1fr; gap: 28px; }
  .footer-links--products { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .footer-masthead { display: grid; gap: 24px; padding-block: 28px; }
  .footer-brand { gap: 10px; }
  .footer-brand__description { margin-left: 4px; padding-left: 14px; }
  .footer-direct { margin-left: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .footer-direct strong { font-size: var(--fs-small); }
  .footer-directory { grid-template-columns: 1fr 1fr; gap: 28px 20px; padding-block: 24px; }
  .footer-products { grid-column: 1 / -1; }
  .footer-links--products { grid-template-columns: 1fr 1fr; gap: 0 20px; }
  .footer-links a { min-height: 44px; }
  .footer-heading { margin-bottom: 8px; }
  .footer-location address { overflow-wrap: anywhere; }
  .footer-map { align-items: flex-start; padding-top: 12px; line-height: 1.5; }
  .footer-map > .icon { margin-top: 3px; flex: none; }
  .footer-colophon { flex-direction: column; align-items: flex-start; gap: 6px; padding-block: 18px; }
  .footer-credit { width: 100%; justify-content: space-between; }
}
/* =========================================================
   Stil sayfası
   ========================================================= */
.stil-h { margin: 72px 0 24px; padding-top: 24px; border-top: 1px solid var(--line); }
.stil-note { color: var(--graphite); margin: -8px 0 20px; max-width: 46em; }
.swatch-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
.swatch {
  min-height: 170px; padding: 16px;
  display: flex; flex-direction: column; justify-content: flex-end; gap: 4px;
  background: var(--sw); color: var(--white); font-size: var(--fs-small);
}
.swatch--light { color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
.swatch__name { font-size: 1.0625rem; font-weight: 700; }
.swatch .var { text-transform: none; letter-spacing: .04em; }
.swatch-grid--ral .swatch { min-height: 220px; }
.type-scale { display: grid; }
.type-row { display: grid; grid-template-columns: 240px 1fr; gap: 24px; align-items: baseline; padding: 22px 0; border-bottom: 1px solid var(--line); }
.type-row > .code { color: var(--graphite); }
@media (max-width: 700px) { .type-row { grid-template-columns: 1fr; gap: 8px; } }

.form-demo { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; max-width: 980px; }
.field { display: grid; gap: 8px; }
.field--wide { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: var(--fs-small); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 50px; padding: 12px 14px;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--graphite); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgb(31 79 163 / 18%); }
.field__hint { font-size: var(--fs-small); color: var(--graphite); }
@media (max-width: 800px) { .form-demo { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; transition-delay: 0s !important; animation: none !important; scroll-behavior: auto !important; }
}

/* ECM logosu (assets/img/marka/; resmi logo, yeniden çizilmez) */
.brand-logo { display: block; flex: none; line-height: 0; }
.brand-logo img { display: block; width: auto; height: var(--logo-h, 40px); }
.brand .brand-logo { --logo-h: 40px; }
.footer-brand .brand-logo { --logo-h: 48px; }
@media (max-width: 1023px) { .brand .brand-logo { --logo-h: 34px; } }
@media (max-width: 600px) { .footer-brand .brand-logo { --logo-h: 40px; } }