/* ==========================================================================
   dk mekatronik - tasarim sistemi
   dunya: kesim plani (nesting). sayfa bir plaka, bolumler plakaya yerlesmis
   parcalar, ayirici cizgiler takim yolu, bosluklar fire alani.
   ton: kurumsal ve modern. bagimliliksiz css.
   ========================================================================== */

:root {
  /* takim yolu ve marka */
  --yol: #009bf9;
  --yol-koyu: #0069b3;
  --yol-sis: rgba(0, 155, 249, 0.08);

  /* plaka ve zemin */
  --plaka: #eef1f4;
  --plaka-2: #e3e8ed;
  --kagit: #ffffff;
  --grafit: #0e1621;
  --grafit-2: #18232f;

  /* metin */
  --metin: #111c27;
  --metin-2: #55636f;
  --metin-3: #8a97a3;
  --cizgi: #d5dde4;

  /* uyari - az kullanilir */
  --kehribar: #ff9d00;
  --yesil: #1faf54;

  --en: 1280px;
  --gecis: 0.2s cubic-bezier(0.32, 0.72, 0, 1);

  --f-baslik: "Archivo", "Segoe UI", system-ui, sans-serif;
  --f-govde: "Barlow", "Segoe UI", system-ui, sans-serif;
  --f-olcu: "Azeret Mono", ui-monospace, "Consolas", monospace;

  /* fire alani taramasi */
  --fire: repeating-linear-gradient(45deg, rgba(17,28,39,0.045) 0 1px, transparent 1px 9px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 96px; }

body {
  font-family: var(--f-govde);
  font-size: 17.5px;
  line-height: 1.66;
  color: var(--metin);
  background: var(--kagit);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
a { color: var(--yol-koyu); text-decoration: none; transition: color var(--gecis); }
a:hover { color: var(--yol); }

::selection { background: var(--yol); color: #fff; }
:focus-visible { outline: 2px solid var(--yol); outline-offset: 3px; }

/* tarayici yuzeyleri de tasarima ait */
html { scrollbar-color: var(--metin-3) var(--plaka); }
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--plaka); }
::-webkit-scrollbar-thumb { background: var(--metin-3); border: 3px solid var(--plaka); }
::-webkit-scrollbar-thumb:hover { background: var(--metin-2); }

.kap { width: 100%; max-width: var(--en); margin: 0 auto; padding: 0 28px; }

/* --- tipografi ---------------------------------------------------------- */

h1, h2, h3, h4 {
  font-family: var(--f-baslik);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.025em;
}
h1 { font-size: clamp(2.5rem, 5.4vw, 4.2rem); }
h2 { font-size: clamp(1.95rem, 3.6vw, 2.9rem); }
h3 { font-size: 1.32rem; font-weight: 600; letter-spacing: -0.015em; }
h4 { font-size: 1.06rem; font-weight: 600; }

p { max-width: 72ch; }
strong { font-weight: 600; color: var(--metin); }

/* olcu yazisi: yalnizca gercek olcu, kod ve veri icin */
.olcu {
  font-family: var(--f-olcu);
  font-size: 0.74rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--metin-3);
}

/* --- plaka bolumleri ---------------------------------------------------- */

.bolum { padding: 100px 0; position: relative; }
.bolum--plaka { background: var(--plaka); }
.bolum--koyu { background: var(--grafit); color: #c2ccd6; }
.bolum--koyu h1, .bolum--koyu h2, .bolum--koyu h3, .bolum--koyu h4 { color: #fff; }
.bolum--koyu p { color: #9aa8b5; }
.bolum--koyu a { color: #64c4ff; }
.bolum--fire { background-image: var(--fire); }

/* takim yolu: bolumleri ayiran kesim cizgisi */
.bolum + .bolum { border-top: 1px solid var(--cizgi); }
.bolum--koyu + .bolum, .bolum + .bolum--koyu { border-top: 0; }

.bolum-basi { max-width: 800px; margin-bottom: 56px; }
.bolum-basi p { color: var(--metin-2); margin-top: 18px; font-size: 1.1rem; }
.bolum--koyu .bolum-basi p { color: #9aa8b5; }

/* --- takim yolu: sayfa ilerleme cizgisi --------------------------------- */

.ilerleme {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  z-index: 200;
  transform-origin: left;
  transform: scaleX(0);
  background: var(--yol);
  pointer-events: none;
}
.ilerleme::after {
  /* kesim ucu */
  content: "";
  position: absolute;
  right: 0; top: -2px;
  width: 6px; height: 6px;
  background: var(--yol);
  box-shadow: 0 0 8px rgba(0, 155, 249, 0.9);
}

/* --- gorunurlukle beliren bloklar --------------------------------------- */

/* gizlemeler yalnizca js calisirken uygulanir; js yoksa her sey acik gelir */
.js .bel {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(0.32, 0.72, 0, 1), transform 0.6s cubic-bezier(0.32, 0.72, 0, 1);
}
.js .bel.gorundu { opacity: 1; transform: none; }

/* parcalar sirayla yerlesir - nesting yerlesimi gibi */
.js .plan .parca { opacity: 0; transform: translateY(14px); }
.plan.gorundu .parca {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s cubic-bezier(0.32, 0.72, 0, 1), transform 0.5s cubic-bezier(0.32, 0.72, 0, 1), background var(--gecis);
}
.plan.gorundu .parca:nth-child(1) { transition-delay: 0s; }
.plan.gorundu .parca:nth-child(2) { transition-delay: 0.06s; }
.plan.gorundu .parca:nth-child(3) { transition-delay: 0.12s; }
.plan.gorundu .parca:nth-child(4) { transition-delay: 0.18s; }
.plan.gorundu .parca:nth-child(5) { transition-delay: 0.24s; }
.plan.gorundu .parca:nth-child(6) { transition-delay: 0.30s; }
.plan.gorundu .parca:nth-child(7) { transition-delay: 0.36s; }
.plan.gorundu .parca:nth-child(8) { transition-delay: 0.42s; }

/* --- ust bar ------------------------------------------------------------ */

.ust-bar {
  background: var(--grafit);
  color: #8794a1;
  padding: 9px 0;
  font-family: var(--f-olcu);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
}
.ust-bar .kap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; align-items: center; }
.ust-bar a { color: #8794a1; }
.ust-bar a:hover { color: #fff; }
.ust-bar-sag { display: flex; gap: 24px; }

/* --- menu --------------------------------------------------------------- */

.baslik-cubugu {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.975);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--cizgi);
}
.baslik-cubugu .kap { display: flex; align-items: center; justify-content: space-between; gap: 22px; min-height: 78px; }

.logo { display: flex; align-items: center; gap: 16px; }
.logo img { height: 44px; width: auto; }
.logo-slogan {
  font-family: var(--f-olcu);
  font-size: 0.58rem;
  line-height: 1.7;
  letter-spacing: 0.14em;
  color: var(--metin-3);
  padding-left: 16px;
  border-left: 1px solid var(--cizgi);
  white-space: nowrap;
}

.menu { display: flex; align-items: center; gap: 1px; }
.menu > li > a {
  display: block;
  font-family: var(--f-baslik);
  font-size: 0.94rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--metin);
  padding: 11px 14px;
  position: relative;
}
.menu > li > a::after {
  content: "";
  position: absolute; left: 14px; right: 14px; bottom: 4px;
  height: 2px;
  background: var(--yol);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--gecis);
}
.menu > li > a:hover::after, .menu > li > a.aktif::after { transform: scaleX(1); }
.menu > li > a:hover, .menu > li > a.aktif { color: var(--yol-koyu); }

.menu li { position: relative; }
.menu > li > a.acilir::after { display: none; }
.menu > li > a.acilir { padding-right: 26px; }
.menu > li > a.acilir .ok {
  position: absolute; right: 12px; top: 50%;
  width: 7px; height: 7px;
  margin-top: -4px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  opacity: 0.5;
  transition: transform var(--gecis);
}
.menu li:hover > a.acilir .ok { transform: rotate(45deg) translate(1px, 1px); }

.alt-menu {
  position: absolute; top: 100%; left: 0;
  min-width: 288px;
  background: var(--kagit);
  border: 1px solid var(--cizgi);
  border-top: 2px solid var(--yol);
  box-shadow: 0 20px 48px -12px rgba(14, 22, 33, 0.22);
  padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity var(--gecis), transform var(--gecis), visibility var(--gecis);
}
.menu li:hover > .alt-menu, .menu li:focus-within > .alt-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.alt-menu a {
  display: block;
  font-size: 0.95rem;
  color: var(--metin);
  padding: 10px 14px;
  border-left: 1px solid transparent;
}
.alt-menu a:hover, .alt-menu a.aktif { background: var(--plaka); border-left-color: var(--yol); color: var(--yol-koyu); }

.menu-dugme {
  display: none;
  background: none;
  border: 1px solid var(--cizgi);
  padding: 11px 14px;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  color: var(--metin);
}

/* --- butonlar: kesim komutu grameri ------------------------------------- */

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-baslik);
  font-size: 0.99rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  padding: 14px 26px;
  border: 1.5px solid transparent;
  cursor: pointer;
  position: relative;
  transition: background var(--gecis), color var(--gecis), border-color var(--gecis);
}
.btn svg { width: 17px; height: 17px; flex: 0 0 auto; }
.btn--ana { background: var(--yol); color: #fff; }
.btn--ana:hover { background: var(--grafit); color: #fff; }
.btn--cizgi { border-color: var(--cizgi); color: var(--metin); background: var(--kagit); }
.btn--cizgi:hover { border-color: var(--yol); color: var(--yol-koyu); }
.btn--isik { border-color: rgba(255,255,255,0.3); color: #fff; }
.btn--isik:hover { background: #fff; color: var(--grafit); border-color: #fff; }

/* --- hero: plaka uzerinde yerlesim -------------------------------------- */

.hero {
  background: var(--grafit);
  color: #fff;
  padding: 92px 0 84px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}
.hero .kap { position: relative; z-index: 2; }
.hero-izgara { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 64px; align-items: center; }

/* acilista tek orkestre giris - yalnizca ilk ekranda */
.js .hero h1,
.js .hero .giris,
.js .hero-butonlar,
.js .hero-satir,
.js .dro {
  animation: heroGir 0.75s cubic-bezier(0.32, 0.72, 0, 1) backwards;
}
.js .hero h1 { animation-delay: 0.05s; }
.js .hero .giris { animation-delay: 0.16s; }
.js .hero-butonlar { animation-delay: 0.26s; }
.js .hero-satir { animation-delay: 0.36s; }
.js .dro { animation-delay: 1.1s; }
@keyframes heroGir {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
.hero h1 { color: #fff; max-width: 14ch; }
.hero h1 em { font-style: normal; color: var(--yol); }
.hero .giris { font-size: 1.15rem; color: #a7b4c1; margin: 28px 0 34px; max-width: 54ch; }
.hero-butonlar { display: flex; gap: 14px; flex-wrap: wrap; }

/* eksen konum gostergesi - cnc kontrolundeki dro satiri gibi */
.dro {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 34px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.25);
  font-family: var(--f-olcu);
  font-size: 0.78rem;
}
.dro div {
  padding: 10px 20px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.dro div:last-child { border-right: 0; }
.dro span { color: #6b7a89; letter-spacing: 0.12em; }
.dro b {
  color: var(--yol);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  min-width: 8ch;
  text-align: right;
}
.dro .durum { color: #1faf54; }
.dro .durum::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #1faf54;
  margin-right: 8px;
  animation: nabiz 2.4s ease-in-out infinite;
}
@keyframes nabiz {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* hero altindaki gercek okuma satiri */
.hero-satir {
  display: flex; flex-wrap: wrap;
  margin-top: 46px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.hero-satir div { padding: 18px 28px 0 0; margin-right: 28px; border-right: 1px solid rgba(255,255,255,0.12); }
.hero-satir div:last-child { border-right: 0; margin-right: 0; }
.hero-satir b { display: block; font-family: var(--f-baslik); font-size: 1.02rem; font-weight: 600; color: #fff; }
.hero-satir span { font-family: var(--f-olcu); font-size: 0.7rem; color: #7d8b98; letter-spacing: 0.05em; }

/* nesting cizimi */
.yerlesim { position: relative; }
.yerlesim svg { width: 100%; height: auto; display: block; }
.parca-sekil { opacity: 0; animation: yerles 0.5s cubic-bezier(0.32,0.72,0,1) forwards; }
.yol-cizgi { stroke-dasharray: 2200; stroke-dashoffset: 2200; animation: kes 2.6s ease-out 0.9s forwards; }
@keyframes yerles { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
@keyframes kes { to { stroke-dashoffset: 0; } }

/* --- ic sayfa basligi --------------------------------------------------- */

.sayfa-basi {
  background: var(--grafit);
  color: #fff;
  padding: 70px 0 64px;
  border-bottom: 2px solid var(--yol);
  position: relative;
  overflow: hidden;
}
.sayfa-basi::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size: 28px 28px;
}
.sayfa-basi .kap { position: relative; z-index: 2; }
.sayfa-basi h1 { color: #fff; max-width: 19ch; }
.sayfa-basi p { color: #a7b4c1; margin-top: 20px; font-size: 1.12rem; max-width: 66ch; }
.kirinti {
  font-family: var(--f-olcu);
  font-size: 0.71rem;
  letter-spacing: 0.05em;
  color: #7d8b98;
  margin-bottom: 20px;
}
.kirinti a { color: #7d8b98; }
.kirinti a:hover { color: #fff; }
.kirinti span { color: #4d5b68; margin: 0 8px; }

/* --- yerlesim izgarasi: parcalar farkli boyutta -------------------------- */

.plan {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--cizgi);
  border: 1px solid var(--cizgi);
}
.parca {
  background: var(--kagit);
  padding: 38px 34px;
  position: relative;
  grid-column: span 2;
  transition: background var(--gecis);
}
.parca:hover { background: var(--plaka); }
.parca--genis { grid-column: span 3; }
.parca--tam { grid-column: span 6; }
.parca--yariwidth { grid-column: span 3; }

/* kesim kose isaretleri - hover'da belirir */
.parca::before, .parca::after {
  content: "";
  position: absolute;
  width: 12px; height: 12px;
  opacity: 0;
  transition: opacity var(--gecis);
  border-color: var(--yol);
}
.parca::before { top: 10px; left: 10px; border-top: 1.5px solid; border-left: 1.5px solid; }
.parca::after { bottom: 10px; right: 10px; border-bottom: 1.5px solid; border-right: 1.5px solid; }
.parca:hover::before, .parca:hover::after { opacity: 1; }

.parca h3 { margin-bottom: 12px; }
.parca p { color: var(--metin-2); font-size: 1rem; }
.parca .devam {
  display: inline-flex; align-items: center; gap: 7px;
  margin-top: 20px;
  font-family: var(--f-baslik);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--yol-koyu);
}
.parca .devam svg { width: 15px; height: 15px; transition: transform var(--gecis); }
.parca:hover .devam svg { transform: translateX(3px); }

.parca-ikon { color: var(--yol); margin-bottom: 22px; }
.parca-ikon svg { width: 38px; height: 38px; }

.bolum--plaka .plan { background: var(--cizgi); }
.bolum--koyu .plan { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.1); }
.bolum--koyu .parca { background: var(--grafit); }
.bolum--koyu .parca:hover { background: var(--grafit-2); }
.bolum--koyu .parca p { color: #9aa8b5; }

/* --- listeler ----------------------------------------------------------- */

.tik-liste li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 13px;
  color: var(--metin-2);
}
.tik-liste li::before {
  content: "";
  position: absolute; left: 0; top: 12px;
  width: 14px; height: 1.5px;
  background: var(--yol);
}
.bolum--koyu .tik-liste li { color: #9aa8b5; }

/* --- iki sutun ---------------------------------------------------------- */

.ikili { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(350px, 100%), 1fr)); gap: 64px; align-items: start; }
.ikili p { color: var(--metin-2); margin-bottom: 17px; }
.bolum--koyu .ikili p { color: #9aa8b5; }

/* --- yazi sayfalari ----------------------------------------------------- */

.yazi { max-width: 74ch; }
.yazi h2 { margin: 52px 0 18px; }
.yazi h3 { margin: 36px 0 13px; }
.yazi p { margin-bottom: 17px; color: #3b4855; }
.yazi ul, .yazi ol { margin: 0 0 22px; }
.yazi li { position: relative; padding-left: 24px; margin-bottom: 10px; color: #3b4855; }
.yazi li::before { content: ""; position: absolute; left: 0; top: 13px; width: 11px; height: 1.5px; background: var(--yol); }
.yazi table { width: 100%; border-collapse: collapse; margin: 10px 0 28px; font-size: 0.96rem; }
.yazi th, .yazi td { border: 1px solid var(--cizgi); padding: 12px 15px; text-align: left; }
.yazi th { background: var(--plaka); font-family: var(--f-baslik); font-size: 0.9rem; font-weight: 600; }
.yazi td { font-variant-numeric: tabular-nums; }
.ozet {
  border-left: 1px solid var(--yol);
  background: var(--plaka);
  padding: 24px 28px;
  margin-bottom: 38px;
  font-size: 1.06rem;
  color: var(--metin);
}
.formul {
  font-family: var(--f-olcu);
  background: var(--grafit);
  color: #7fd8ff;
  padding: 20px 24px;
  margin: 10px 0 26px;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 2;
}

/* --- gorseller ---------------------------------------------------------- */

/* teknik diyagram: kendi urettigimiz sema ve cizimler */
.gorsel { margin: 34px 0; }
.gorsel img, .gorsel svg { width: 100%; height: auto; display: block; border: 1px solid var(--cizgi); background: var(--kagit); }

/* cizim animasyonu: diyagram gorunur olunca kendini cizer.
   js stroke uzunlugunu olcup dash degerlerini kendisi yazar. */
.js .cizim text, .js .cizim [data-dolgu] { opacity: 0; transition: opacity 0.5s ease; }
.js .cizim.ciz-basla text, .js .cizim.ciz-basla [data-dolgu] { opacity: 1; }
.gorsel figcaption {
  font-family: var(--f-olcu);
  font-size: 0.73rem;
  letter-spacing: 0.03em;
  color: var(--metin-3);
  padding-top: 10px;
  border-top: 1px solid var(--cizgi);
  margin-top: -1px;
}
.bolum--koyu .gorsel img, .bolum--koyu .gorsel svg { border-color: rgba(255,255,255,0.14); background: transparent; }

/* fotograf alani: musteri fotografini koyunca dolar, bos halde de duzgun gorunur */
.foto {
  position: relative;
  background: var(--plaka-2);
  background-image: var(--fire);
  border: 1px solid var(--cizgi);
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.foto img { width: 100%; height: 100%; object-fit: cover; }
.foto-yazi {
  font-family: var(--f-olcu);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--metin-3);
  text-align: center;
  padding: 22px;
  max-width: 34ch;
  line-height: 1.8;
}
.foto-yazi b { display: block; color: var(--metin-2); font-weight: 500; margin-bottom: 6px; }
.foto--dar { aspect-ratio: 4 / 3; }
.foto-izgara { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); gap: 20px; }

/* --- urun kartlari ------------------------------------------------------ */

.urunler {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
  gap: 1px;
  background: var(--cizgi);
  border: 1px solid var(--cizgi);
}
.urun {
  background: var(--kagit);
  padding: 0 0 28px;
  position: relative;
  transition: background var(--gecis);
}
.urun:hover { background: var(--plaka); }
.urun::before, .urun::after {
  content: "";
  position: absolute;
  width: 12px; height: 12px;
  opacity: 0;
  transition: opacity var(--gecis);
  border-color: var(--yol);
}
.urun::before { top: 10px; left: 10px; border-top: 1.5px solid; border-left: 1.5px solid; }
.urun::after { bottom: 10px; right: 10px; border-bottom: 1.5px solid; border-right: 1.5px solid; }
.urun:hover::before, .urun:hover::after { opacity: 1; }

.urun-foto {
  height: 168px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 26px 26px 18px;
  background: #ffffff;
}
.urun-foto img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  object-fit: contain;
  transition: transform 0.4s cubic-bezier(0.32, 0.72, 0, 1);
}
.urun:hover .urun-foto img { transform: scale(1.05); }

a.urun { display: block; color: inherit; }
a.urun h3 { color: var(--metin); transition: color var(--gecis); }
a.urun:hover h3 { color: var(--yol-koyu); }
.urun .devam {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 16px;
  font-family: var(--f-baslik);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--yol-koyu);
}
.urun .devam svg { width: 15px; height: 15px; transition: transform var(--gecis); }
.urun:hover .devam svg { transform: translateX(3px); }

.urun-govde { padding: 0 26px; }
.urun h3 { font-size: 1.14rem; margin-bottom: 8px; }
.urun p { color: var(--metin-2); font-size: 0.95rem; }
.urun .seri {
  display: block;
  font-family: var(--f-olcu);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--yol-koyu);
  margin-bottom: 10px;
}

/* urun detay ust bolumu */
.urun-ust {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}
.urun-ust-foto {
  background: var(--kagit);
  border: 1px solid var(--cizgi);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  position: relative;
}
.urun-ust-foto::before, .urun-ust-foto::after {
  content: "";
  position: absolute;
  width: 16px; height: 16px;
  border-color: var(--yol);
}
.urun-ust-foto::before { top: 12px; left: 12px; border-top: 2px solid; border-left: 2px solid; }
.urun-ust-foto::after { bottom: 12px; right: 12px; border-bottom: 2px solid; border-right: 2px solid; }
.urun-ust-foto img { max-width: 100%; max-height: 260px; width: auto; object-fit: contain; }
.urun-ust h2 { margin-bottom: 16px; }
.urun-ust p { color: var(--metin-2); margin-bottom: 16px; }

.rozet {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--f-olcu);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--yol-koyu);
  border: 1px solid var(--yol);
  padding: 7px 14px;
  margin-bottom: 20px;
}
.rozet::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--yol);
}

@media (max-width: 900px) {
  .urun-ust { grid-template-columns: 1fr; gap: 32px; }
  .urun-ust-foto { min-height: 220px; padding: 28px; }
}

/* --- proje sekmeleri ---------------------------------------------------- */

.sekmeler {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid var(--cizgi);
  margin-bottom: 34px;
}
.sekme {
  font-family: var(--f-baslik);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--metin-2);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 14px 20px;
  margin-bottom: -1px;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--gecis), border-color var(--gecis);
}
.sekme:hover { color: var(--metin); }
.sekme[aria-selected="true"] { color: var(--yol-koyu); border-bottom-color: var(--yol); }
.sekme .adet {
  font-family: var(--f-olcu);
  font-size: 0.66rem;
  color: var(--metin-3);
  margin-left: 7px;
}

.js .proje[hidden] { display: none; }

/* --- proje kartlari ----------------------------------------------------- */

.projeler {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
  gap: 1px;
  background: var(--cizgi);
  border: 1px solid var(--cizgi);
}
.proje { background: var(--kagit); display: flex; flex-direction: column; }

.video {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--grafit);
  overflow: hidden;
  cursor: pointer;
  border: 0;
  padding: 0;
  width: 100%;
  display: block;
}
.video img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.32, 0.72, 0, 1), opacity var(--gecis);
}
.video:hover img { transform: scale(1.04); opacity: 0.82; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* oynat dugmesi */
.video-oynat {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 62px; height: 62px;
  background: rgba(0, 155, 249, 0.94);
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--gecis), background var(--gecis);
  pointer-events: none;
}
.video:hover .video-oynat { transform: translate(-50%, -50%) scale(1.08); background: var(--yol); }
.video-oynat::after {
  content: "";
  border-left: 17px solid #fff;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  margin-left: 5px;
}
.video-etiket {
  position: absolute;
  left: 0; bottom: 0;
  font-family: var(--f-olcu);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: #fff;
  background: rgba(14, 22, 33, 0.86);
  padding: 6px 12px;
  pointer-events: none;
}

.proje-govde { padding: 26px 26px 30px; flex: 1; display: flex; flex-direction: column; }
.proje h3 { font-size: 1.16rem; margin-bottom: 10px; }
.proje p { color: var(--metin-2); font-size: 0.96rem; margin-bottom: 16px; }
.proje-etiketler { display: flex; flex-wrap: wrap; gap: 7px; margin-top: auto; }
.proje-etiketler span {
  font-family: var(--f-olcu);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  color: var(--yol-koyu);
  border: 1px solid var(--cizgi);
  padding: 5px 10px;
}

@media (max-width: 620px) {
  .sekmeler { overflow-x: auto; flex-wrap: nowrap; }
  .sekme { padding: 13px 15px; font-size: 0.92rem; }
}

/* marka baslik seridi */
.marka {
  display: flex;
  align-items: baseline;
  gap: 18px;
  flex-wrap: wrap;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--yol);
  margin-bottom: 34px;
}
.marka h2 { margin: 0; }
.marka .rol {
  font-family: var(--f-olcu);
  font-size: 0.73rem;
  letter-spacing: 0.12em;
  color: var(--metin-3);
}
.marka--ikincil { border-bottom-color: var(--cizgi); }

/* --- surec: gercek sira, numaralar bilgi tasiyor ------------------------- */

.surec { border-top: 1px solid var(--cizgi); }
.surec li {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 28px;
  padding: 30px 0;
  border-bottom: 1px solid var(--cizgi);
  align-items: start;
}
.surec .adim-no {
  font-family: var(--f-olcu);
  font-size: 0.8rem;
  color: var(--yol);
  padding-top: 7px;
  font-variant-numeric: tabular-nums;
}
.surec h3 { margin-bottom: 9px; }
.surec p { color: var(--metin-2); font-size: 1rem; }

/* --- sss ---------------------------------------------------------------- */

.sss details { border-bottom: 1px solid var(--cizgi); padding: 22px 0; }
.sss summary {
  font-family: var(--f-baslik);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}
.sss summary::-webkit-details-marker { display: none; }
.sss summary .isaret {
  flex: 0 0 auto;
  width: 20px; height: 20px;
  position: relative;
}
.sss summary .isaret::before, .sss summary .isaret::after {
  content: ""; position: absolute; background: var(--yol);
  transition: transform var(--gecis);
}
.sss summary .isaret::before { left: 0; top: 9px; width: 20px; height: 1.5px; }
.sss summary .isaret::after { left: 9px; top: 0; width: 1.5px; height: 20px; }
.sss details[open] summary .isaret::after { transform: scaleY(0); }
.sss p { color: var(--metin-2); margin-top: 15px; }

/* --- cagri -------------------------------------------------------------- */

.cagri { background: var(--yol); color: #fff; padding: 80px 0; }
.cagri h2 { color: #fff; }
.cagri p { color: rgba(255,255,255,0.93); margin: 20px 0 32px; font-size: 1.1rem; }
.cagri-ic { display: grid; grid-template-columns: 1.25fr auto; gap: 48px; align-items: center; }

/* --- iletisim ----------------------------------------------------------- */

.iletisim-izgara { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 64px; align-items: start; }
.iletisim-kutu { display: grid; grid-template-columns: 30px 1fr; gap: 16px; margin-bottom: 30px; }
.iletisim-kutu svg { width: 24px; height: 24px; color: var(--yol); }
.iletisim-kutu h4 { margin-bottom: 5px; }
.iletisim-kutu p, .iletisim-kutu a { color: var(--metin-2); font-size: 1rem; }

.form-kutu { background: var(--plaka); padding: 40px 38px; border: 1px solid var(--cizgi); }
form label {
  display: block;
  font-family: var(--f-baslik);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--metin);
  margin-bottom: 8px;
}
form label .zorunlu { color: var(--yol); }
form input, form textarea, form select {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--cizgi);
  background: var(--kagit);
  font: inherit;
  font-size: 1rem;
  color: var(--metin);
  margin-bottom: 20px;
  transition: border-color var(--gecis), box-shadow var(--gecis);
}
form input::placeholder, form textarea::placeholder { color: var(--metin-3); }
form input:focus, form textarea:focus, form select:focus {
  outline: none;
  border-color: var(--yol);
  box-shadow: inset 0 0 0 1px var(--yol);
}
form textarea { min-height: 150px; resize: vertical; }
.form-ikili { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.form-not { font-size: 0.87rem; color: var(--metin-2); margin-top: 16px; }
.form-durum { padding: 14px 18px; margin-bottom: 22px; font-size: 0.97rem; border-left: 2px solid; }
.form-durum--ok { background: rgba(31,175,84,0.08); border-color: var(--yesil); color: #14682f; }
.form-durum--hata { background: rgba(255,157,0,0.1); border-color: var(--kehribar); color: #7a4c00; }
.harita { border: 0; width: 100%; height: 360px; display: block; filter: grayscale(0.25) contrast(1.05); }

/* --- alt bilgi ---------------------------------------------------------- */

.alt { background: var(--grafit); color: #8794a1; padding: 74px 0 30px; font-size: 0.97rem; }
.alt h4 {
  color: #fff;
  font-family: var(--f-olcu);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.13em;
  margin-bottom: 22px;
}
.alt a { color: #8794a1; }
.alt a:hover { color: #fff; }
.alt-izgara { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.15fr; gap: 46px; }
.alt-izgara li { margin-bottom: 11px; }
.alt-son {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 52px;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  font-family: var(--f-olcu);
  font-size: 0.71rem;
  letter-spacing: 0.03em;
}
.sosyal { display: flex; gap: 10px; margin-top: 24px; }
.sosyal a {
  width: 40px; height: 40px;
  border: 1px solid rgba(255,255,255,0.16);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--gecis), border-color var(--gecis), color var(--gecis);
}
.sosyal a:hover { background: var(--yol); border-color: var(--yol); color: #fff; }
.sosyal svg { width: 17px; height: 17px; }

/* --- whatsapp ----------------------------------------------------------- */

.wa {
  position: fixed; right: 24px; bottom: 24px; z-index: 120;
  width: 52px; height: 52px;
  background: #1faf54;
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 26px -6px rgba(14, 22, 33, 0.4);
  transition: transform var(--gecis);
}
.wa:hover { transform: translateY(-3px); color: #fff; }
.wa svg { width: 27px; height: 27px; }

/* --- duyarli ------------------------------------------------------------ */

@media (max-width: 1120px) {
  .hero-izgara { grid-template-columns: 1fr; gap: 52px; }
  .yerlesim { max-width: 560px; }
  .iletisim-izgara { grid-template-columns: 1fr; gap: 48px; }
  .alt-izgara { grid-template-columns: repeat(auto-fit, minmax(min(210px, 100%), 1fr)); gap: 36px; }
  .cagri-ic { grid-template-columns: 1fr; gap: 28px; }
  .plan { grid-template-columns: repeat(4, 1fr); }
  .parca, .parca--genis, .parca--yariwidth { grid-column: span 2; }
  .parca--tam { grid-column: span 4; }
}

@media (max-width: 940px) {
  .menu {
    position: fixed; top: 0; right: -100%;
    width: min(82vw, 350px); height: 100dvh;
    background: var(--kagit);
    flex-direction: column; align-items: stretch;
    padding: 92px 20px 36px;
    gap: 0;
    overflow-y: auto;
    box-shadow: -16px 0 44px -14px rgba(14,22,33,0.3);
    transition: right var(--gecis);
  }
  .menu.acik { right: 0; }
  .menu > li > a { padding: 15px 12px; border-bottom: 1px solid var(--cizgi); }
  .menu > li > a::after { display: none; }
  .menu > li > a.acilir .ok { right: 14px; }
  .menu-dugme { display: block; z-index: 101; }
  .alt-menu {
    position: static;
    opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: 0; border-left: 1px solid var(--yol);
    margin: 0 0 10px 16px; padding: 0; min-width: 0;
  }
  .alt-menu a { font-size: 0.91rem; padding: 11px 14px; }
  .ust-bar .kap { justify-content: center; text-align: center; gap: 10px; }
  .ust-bar span { display: none; }
  .logo-slogan { display: none; }
  .logo img { height: 38px; }
  .bolum { padding: 68px 0; }
  .hero { padding: 66px 0 62px; }
  .hero-satir div { border-right: 0; padding-right: 0; margin-right: 0; width: 100%; }
  .surec li { grid-template-columns: 1fr; gap: 8px; }
  .form-ikili { grid-template-columns: 1fr; }
  .form-kutu { padding: 30px 24px; }
  body { font-size: 16.5px; }
}

@media (max-width: 620px) {
  .plan { grid-template-columns: 1fr; }
  .parca, .parca--genis, .parca--tam, .parca--yariwidth { grid-column: span 1; }
  .parca { padding: 30px 24px; }
  .kap { padding: 0 20px; }

  /* uzun tablolar sayfayi degil kendi icinde kaydirilir */
  .yazi table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }
  /* uzun urun kodu ve adresler satiri tasirmasin */
  .yazi, .proje p, .urun p, .parca p { overflow-wrap: break-word; }
}

/* hicbir kosulda sayfa yatay kaymasin - son emniyet */
html, body { overflow-x: hidden; max-width: 100%; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .parca-sekil { opacity: 1; }
  .yol-cizgi { stroke-dashoffset: 0; }
  .bel { opacity: 1; transform: none; }
  .plan .parca { opacity: 1; transform: none; }
  .cizim text, .cizim [data-dolgu] { opacity: 1; }
  .ilerleme { display: none; }
}

@media print {
  .baslik-cubugu, .ust-bar, .wa, .cagri, .menu-dugme, .form-kutu { display: none; }
  .hero, .sayfa-basi, .alt { background: #fff; color: #000; }
  .hero h1, .sayfa-basi h1 { color: #000; }
}