/* ==========================================================================
   STMACH Robotics - section-choice.css
   Giris ekrani: ziyaretci "Makinalar" ya da "Gida Makinalari" secer.

   Uc karar:
   1. Kapak STUDYO RENDER: temsilci makinenin 3D render'i koyu zemine
      kompozit edilmis 2048x2048 kare (tools/section-cover.js). Once
      kategori gorselleri, sonra slider posterleri denendi; ikisi de tam
      ekranda bulanik/bloklu kaldi (kaynak videolar 2,2 Mbps ve elde cekim).
      Zemin dosyanin icinde koyu geldigi icin asagidaki perde HAFIFTIR.
   2. Icerik ORTADA: iki panel iki kapi gibi okunur, goz once basliga gider.
   3. Uzerine gelince video: fotograf canlaniyor, diger panel geri cekiliyor.
   ========================================================================== */

/* Sabit basligin yeri bu sayfada ayrilmaz: baslik cizilmiyor, o bosluk
   ekranin ustunde beyaz bir serit olarak kaliyordu (olculdu: 76px). */
.main--sade { padding-block-start: 0 !important; }

.giris {
  position: relative;
  min-block-size: 100vh;
  min-block-size: 100dvh;   /* mobilde adres cubugu girip cikinca 100vh sicrar */
  background: var(--st-slate-dark);
  color: var(--st-white);
  overflow: hidden;
}

/* --------------------------------------------------------------- PANELLER */
.giris__grid {
  display: grid;
  grid-template-columns: 1fr;
  min-block-size: inherit;
}
@media (min-width: 768px) {
  .giris__grid {
    grid-template-columns: repeat(var(--bolum-sayisi, 2), 1fr);
    block-size: 100dvh;
  }
}

.giris__card {
  position: relative;
  display: grid;
  cursor: pointer;
  /* Ustten hizali, ortalanmis DEGIL: her panel kendi icinde ortalaninca iki
     satira kirilan baslik (GIDA MAKINALARI) digerinden asagida kaliyordu.
     Ortak bir ust cizgiden baslayinca kicker'lar ve basliklar ayni hizada. */
  align-content: start;
  justify-items: center;
  min-block-size: 50dvh;
  padding: clamp(24px, 4vw, 64px);
  overflow: hidden;
  color: var(--st-white);
  text-align: center;
  isolation: isolate;
}

/* Kapak ve video ayni kutuya oturur; video ustte ama gorunmez baslar. */
.giris__img,
.giris__video {
  position: absolute;
  inset: 0;
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  z-index: -2;
}
.giris__img { transition: scale 1600ms var(--ease), filter 600ms var(--ease); }

/* CANLILIK: acilista yazi ve makine asagidan yumusakca gelir (yazi once,
   makine sonra), makine sonra sonsuz ve cok hafif suzulur (6 px). scale/
   translate ayri ayri: hover olcegi ile suzulme birbirini ezmez. */
@keyframes giris-gel   { from { opacity: 0; translate: 0 28px; } to { opacity: 1; translate: 0 0; } }
@keyframes giris-suzul { 0%, 100% { translate: 0 0; } 50% { translate: 0 -6px; } }
.giris__body > * { animation: giris-gel 700ms var(--ease) both; }
.giris__body > :nth-child(1) { animation-delay: 120ms; }
.giris__body > :nth-child(2) { animation-delay: 240ms; }
.giris__body > :nth-child(3) { animation-delay: 360ms; }
.giris__img { animation: giris-gel 1100ms var(--ease) 200ms both, giris-suzul 7s ease-in-out 1300ms infinite; }
.giris__card:nth-child(2) .giris__img { animation-delay: 350ms, 1450ms; }
.giris__video {
  opacity: 0;
  transition: opacity 700ms var(--ease);
}
.giris__card.is-playing .giris__video { opacity: 1; }

/*
   Perde: ortadaki yaziyi tasiyan yumusak bir karartma + kenarlarda vinyet.
   Duz bir katman degil - fotografin ust ve alt kenarlari acik kalir,
   makinenin kendisi gorunur.
*/
.giris__card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 45% at 50% 36%,
      color-mix(in srgb, var(--st-slate-dark) 35%, transparent) 0%,
      color-mix(in srgb, var(--st-slate-dark) 15%, transparent) 55%,
      transparent 100%),
    linear-gradient(to top,
      color-mix(in srgb, var(--st-slate-dark) 50%, transparent) 0%,
      transparent 30%),
    linear-gradient(to bottom,
      color-mix(in srgb, var(--st-slate-dark) 55%, transparent) 0%,
      transparent 32%);
  transition: opacity 600ms var(--ease);
}

/* Panelin tamamini kaplayan gorunmez baglanti: yazi katmaninin ALTINDA,
   boylece kategori baglantilari kendi adreslerine gider. */
.giris__hit { position: absolute; inset: 0; z-index: 0; }

/* Turuncu parilti YOK: kapak opak studyo zemini, isik gorselin ustune
   biniyordu (musteri: "gorselin ustune turunculuk binmesin"). */

/* Secim hissi: uzerine gelinen panel canlanir, digeri geri cekilir. */
@media (hover: hover) and (min-width: 768px) {
  .giris__card:hover .giris__img { scale: 1.05; }
  .giris__grid:hover .giris__card:not(:hover) .giris__img,
  .giris__grid:hover .giris__card:not(:hover) .giris__video {
    filter: saturate(.3) brightness(.55);
  }
  .giris__grid:hover .giris__card:not(:hover) .giris__body { opacity: .55; }
}

/* Paneller arasinda ince isikli dikis. */
@media (min-width: 768px) {
  .giris__card + .giris__card::after {
    content: "";
    position: absolute;
    inset-block: 0;
    inset-inline-start: 0;
    inline-size: 1px;
    background: linear-gradient(to bottom,
      transparent, color-mix(in srgb, var(--st-white) 35%, transparent) 30%,
      color-mix(in srgb, var(--st-white) 35%, transparent) 70%, transparent);
    z-index: 1;
  }
}

/* ------------------------------------------------------------ PANEL ICERIGI */
.giris__body {
  position: relative;
  z-index: 1;
  pointer-events: none;   /* tiklama .giris__hit'e duser; baglantilar asagida acilir */
  display: grid;
  justify-items: center;
  gap: var(--space-4);
  max-inline-size: 34ch;
  /* AFIS DUZENI: yazi ust ucte (marka seridinin hemen altinda), makine alt
     yarida. Render kapaklarinda makine kanvasin alt %50sine yerlestirilir
     (section-cover.js --dikey .73); yazi merkezde kalsaydi makinenin
     ustune biniyordu (olculdu: baslik turuncu portalin uzerindeydi). */
  margin-block-start: clamp(96px, 16vh, 170px);
  transition: opacity 600ms var(--ease);
}

.giris__body a { pointer-events: auto; }

.giris__no {
  display: inline-block;
  margin-inline-end: var(--space-2);
  padding-inline-end: var(--space-2);
  border-inline-end: 1px solid color-mix(in srgb, var(--st-orange) 50%, transparent);
  font-variant-numeric: tabular-nums;
}

.giris__kicker {
  color: var(--st-orange);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .28em;
  text-transform: uppercase;
}

.giris__title {
  margin: 0;
  color: var(--st-white);
  font-size: clamp(34px, 4.4vw, 68px);
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: -.015em;
  text-shadow: 0 2px 24px color-mix(in srgb, var(--st-slate-dark) 70%, transparent);
}
/* Baslik hover'da BEYAZ kalir: iki satir turuncu kutle, turuncu makine render'iyla
   yarisiyordu. Secim hissi altta beliren kisa turuncu cizgiyle verilir. */
.giris__title a { position: relative; display: inline-block; color: inherit; padding-block-end: 6px; }
.giris__title a:hover, .giris__card:hover .giris__title a { color: inherit; }
.giris__title a::after {
  content: "";
  position: absolute;
  inset-inline-start: 50%;
  inset-block-end: 0;
  inline-size: 48px;
  block-size: 3px;
  border-radius: 2px;
  background: var(--st-orange);
  transform: translateX(-50%) scaleX(.4);
  opacity: 0;
  transition: transform 400ms var(--ease), opacity 400ms var(--ease);
}
.giris__card:hover .giris__title a::after { transform: translateX(-50%) scaleX(1); opacity: 1; }

.giris__summary {
  margin: 0;
  max-inline-size: 44ch;
  color: color-mix(in srgb, var(--st-white) 78%, transparent);
  font-size: var(--fs-sm);
  line-height: 1.55;
}


/* Dugme: solda eylem, sagda sayi - iki bilgi tek hapta. */
.giris__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-block-start: var(--space-3);
  padding: 6px 8px 6px var(--space-6);
  border-radius: var(--radius-pill);
  border: 1px solid color-mix(in srgb, var(--st-white) 26%, transparent);
  background: color-mix(in srgb, var(--st-slate-dark) 40%, transparent);
  backdrop-filter: blur(8px);
  color: var(--st-white);
  font-size: var(--fs-sm);
  font-weight: 700;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.giris__cta-count {
  padding: 8px var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--st-orange);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  transition: background var(--dur) var(--ease);
}
.giris__cta .icon { inline-size: 18px; block-size: 18px; margin-inline-end: 6px; }
[dir="rtl"] .giris__cta .icon { transform: scaleX(-1); }

/* color hover'da da BEYAZ: main.css'teki genel a:hover turuncu yapiyor, turuncu
   zeminde yazi kayboluyordu (olculdu). */
.giris__card:hover .giris__cta,
.giris__cta:hover {
  color: var(--st-white);
  background: var(--st-orange);
  border-color: var(--st-orange);
  transform: translateY(-2px);
}
.giris__card:hover .giris__cta-count { background: var(--st-orange-2, #d96f10); }

/* ----------------------------------------------------------- MARKA SERIDI
   Logo sol ustte, dil secici sag ustte; iki panelin uzerinde yuzer. */
.giris__head {
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 3;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: clamp(16px, 2.6vh, 28px) clamp(16px, 3vw, 40px);
  pointer-events: none;
}
.giris__head a { pointer-events: auto; }

.giris__brand { display: inline-flex; flex-direction: column; gap: 6px; }
.giris__brand:hover { color: inherit; }
.giris__logo {
  block-size: clamp(28px, 3.2vw, 40px);
  inline-size: auto;
  filter: drop-shadow(0 2px 12px color-mix(in srgb, var(--st-slate-dark) 80%, transparent));
}
.giris__wordmark { font-size: var(--fs-h3); font-weight: 800; letter-spacing: .02em; }

/* -------------------------------------------------------------- DIL SECICI */
.giris__langs {
  z-index: 3;
  display: flex;
  gap: 2px;
  flex: 0 0 auto;
  padding: 4px;
  border-radius: var(--radius-pill);
  border: 1px solid color-mix(in srgb, var(--st-white) 16%, transparent);
  background: color-mix(in srgb, var(--st-slate-dark) 55%, transparent);
  backdrop-filter: blur(8px);
}
.giris__lang {
  padding: 5px var(--space-3);
  border-radius: var(--radius-pill);
  color: color-mix(in srgb, var(--st-white) 68%, transparent);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .06em;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.giris__lang:hover { color: var(--st-white); }
.giris__lang.is-active { background: var(--st-orange); color: var(--st-white); }


/* ------------------------------------------------------------------ MOBIL
   Iki YARIM EKRAN afis: kaydirmadan ikisi de gorunur (musteri istegi).
   Yazi kartin ust yarisinda, kapak alt %55'inde; ust kenari maskeyle kart
   zeminine eritilir. Ozet iki satirla sinirlanir ki 400 px'lik kartta
   dugme makinenin ustune binmesin. */
@media (max-width: 767px) {
  .giris__grid { min-block-size: 100dvh; grid-template-rows: 1fr 1fr; }
  .giris__card {
    align-content: start;
    min-block-size: 0;
    padding: var(--space-4);
    /* section-cover.js zemininin ust rengi; kapak kenari burada kaybolur. */
    background: #1f2b32;
  }
  .giris__card + .giris__card { border-block-start: 1px solid color-mix(in srgb, var(--st-white) 12%, transparent); }
  .giris__body { margin-block-start: clamp(8px, 2vh, 20px); gap: var(--space-2); max-inline-size: 40ch; }
  /* Ilk kartta logo seridine yer birakilir. */
  .giris__card:first-child .giris__body { margin-block-start: clamp(56px, 9vh, 80px); }
  .giris__title { font-size: clamp(24px, 7vw, 32px); }
  .giris__summary {
    font-size: var(--fs-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .giris__cta { margin-block-start: var(--space-1); padding: 4px 6px 4px var(--space-4); font-size: var(--fs-xs); }

  .giris__img {
    inset: auto 0 0 0;
    block-size: 55%;
    object-position: 50% 100%;
    -webkit-mask-image: linear-gradient(to bottom, transparent, #000 35%);
    mask-image: linear-gradient(to bottom, transparent, #000 35%);
  }

  /* Baslik seridi: logo kucuk, slogan gizli; dil secici sagda. */
  .giris__head { padding: 12px 14px; }
  .giris__logo { block-size: 24px; }
  .giris__lang { padding: 4px 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .giris__img, .giris__video, .giris__body, .giris__cta, .giris__card::before { transition: none; }
  .giris__card:hover .giris__img { scale: none; }
  .giris__body > *, .giris__img { animation: none; }
  .giris__card:hover .giris__cta { transform: none; }
}