/* layout.css — konteyner, izgara, baslik, alt bilgi */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.container--narrow { max-width: 820px; }

.section {
  position: relative;
  padding-block: var(--section-y);
}
.section--tight { padding-block: calc(var(--section-y) * 0.62); }

/* Yumusak zemin: duz dolgu yerine hafif dikey gecis, bolum siniri belirsiz kalir. */
.section--tinted {
  background: linear-gradient(180deg, var(--blue-50) 0%, #F7FBFE 100%);
}
.section--tinted::before,
.section--tinted::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: var(--grad-line);
  opacity: 0.5;
}
.section--tinted::before { top: 0; }
.section--tinted::after { bottom: 0; }

.section__head {
  max-width: var(--measure);
  margin-bottom: 2.75rem;
}
.section__lede {
  font-size: 1.0625rem;
  color: var(--ink-600);
  max-width: var(--measure);
}

/* Bolum basliginin uzerindeki kucuk etiket */
.section__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 0.85rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-600);
}
.section__eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  border-radius: 2px;
  background: var(--grad-brand);
}

.prose { max-width: var(--measure); }
.prose h2 { margin-top: 2.5rem; }
.prose h3 { margin-top: 2rem; }
.prose > :first-child { margin-top: 0; }

.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 56px;
  align-items: center;
}
.split--top { align-items: start; }

/* ---------- Ust baslik ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid transparent;
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  transition: background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

/* Sayfa kaydirilinca baslik belirginlesir. Sinifi ui.js ekler. */
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: var(--ink-200);
  box-shadow: 0 1px 3px rgba(10, 37, 64, 0.05), 0 8px 24px rgba(10, 37, 64, 0.06);
}

/* backdrop-filter desteklenmiyorsa saydamlik birakma. */
@supports not (backdrop-filter: blur(1px)) {
  .site-header { background: rgba(255, 255, 255, 0.98); }
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex: none;
  transition: transform var(--dur) var(--ease);
}
.brand:hover { transform: translateY(-1px); }
.brand__logo { height: 38px; width: auto; }

/* Marka etiketi: logonun yanindaki kucuk rozet. Menuye yer kalmadigi
   genisliklerde gizlenir; bilgi zaten sayfa icinde tekrar geciyor. */
.brand-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: none;
  margin-inline-start: -8px;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--blue-100);
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue-50), var(--paper));
  font-size: 0.75rem;
  font-weight: 650;
  color: var(--blue-700);
  white-space: nowrap;
}
.brand-tag::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--grad-brand);
  box-shadow: 0 0 0 3px rgba(46, 211, 233, 0.18);
}

.site-nav { margin-inline-start: auto; }

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__item { position: relative; margin: 0; }
.site-nav__item--has-children { position: relative; }

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.55rem 0.8rem;
  border: 0;
  background: none;
  border-radius: 999px;
  color: var(--navy-800);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.site-nav__link:hover { background: var(--blue-50); color: var(--navy-900); }
.site-nav__link.is-current { color: var(--blue-700); }

/* Acik sayfanin altinda kisa gradyan cizgi */
.site-nav__link.is-current::after {
  content: "";
  position: absolute;
  left: 0.8rem; right: 0.8rem; bottom: 0.28rem;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-brand);
}

.site-nav__chevron {
  width: 8px; height: 8px;
  border-right: 1.8px solid currentColor;
  border-bottom: 1.8px solid currentColor;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--dur) var(--ease);
}
.site-nav__toggle[aria-expanded="true"] .site-nav__chevron {
  transform: rotate(-135deg) translate(-3px, -3px);
}

.site-nav__submenu {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 320px;
  background: var(--paper);
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 10px;
  list-style: none;
  margin: 0;
}
.site-nav__toggle[aria-expanded="true"] + .site-nav__submenu {
  display: block;
  animation: submenu-in 0.2s var(--ease-out);
}
.site-nav__submenu li { margin: 0; }

@keyframes submenu-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

.site-nav__sublink {
  display: block;
  padding: 0.65rem 0.8rem;
  border-radius: var(--radius-sm);
  color: var(--ink-700);
  font-size: 0.9375rem;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.site-nav__sublink:hover { background: var(--blue-50); color: var(--navy-900); }
.site-nav__sublink.is-current { color: var(--blue-700); font-weight: 600; }

.site-nav__submenu-cta { border-top: 1px solid var(--ink-200); margin-top: 8px; padding-top: 8px; }
.site-nav__sublink--strong { font-weight: 700; color: var(--blue-700); }

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: none;
}
.site-header__focus {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-inline-start: auto;
}

.link-quiet {
  color: var(--ink-600);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
}
.link-quiet:hover { color: var(--navy-900); text-decoration: underline; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-inline-start: auto;
  padding: 0.55rem 0.85rem;
  background: var(--paper);
  border: 1px solid var(--ink-200);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy-900);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.nav-toggle:hover { border-color: var(--blue-400); box-shadow: var(--shadow-sm); }
.nav-toggle__label { line-height: 1; }
.nav-toggle__bars { display: inline-grid; gap: 3px; }
.nav-toggle__bars span {
  display: block;
  width: 18px; height: 2px;
  background: var(--navy-900);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ---------- Alt bilgi ---------- */

.site-footer {
  position: relative;
  background: var(--grad-deep);
  color: #A9BDCF;
  padding-block: 72px 34px;
  font-size: 0.9375rem;
  overflow: hidden;
}

/* Ust kenarda ince marka cizgisi */
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-brand);
  opacity: 0.85;
}

/* Kose parilti — duz koyu zemini kirar */
.site-footer::after {
  content: "";
  position: absolute;
  top: -180px; right: -120px;
  width: 520px; height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 211, 233, 0.14) 0%, transparent 68%);
  pointer-events: none;
}

.site-footer > .container { position: relative; z-index: 1; }

.site-footer a { color: #C6D8E6; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }

.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 36px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.site-footer__col { min-width: 0; }
.site-footer__col--contact a { word-break: break-word; }

.site-footer__heading {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #7793AB;
  margin-bottom: 1rem;
}

.site-footer__list { list-style: none; margin: 0; padding: 0; }
.site-footer__list li { margin-bottom: 0.55rem; }

.site-footer__address {
  margin-top: 1.1rem;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #8FA7BD;
  font-size: 0.875rem;
  line-height: 1.6;
}

.site-footer__legal { padding-top: 30px; }
.site-footer__company { color: #C6D8E6; margin-bottom: 0.35rem; }
.site-footer__company strong { color: #fff; }
.site-footer__copy { color: #7793AB; font-size: 0.875rem; margin: 0; }

/* ---------- Mobil sabit cubuk ---------- */

.mobile-bar {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 95;
  gap: 10px;
  padding: 10px var(--gutter) calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.92);
  border-top: 1px solid var(--ink-200);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 -4px 20px rgba(10, 37, 64, 0.08);
}

/* ---------- Duyarli ---------- */

/* Menu ogeleri sikismadan once etiket cekilir. */
@media (max-width: 1180px) {
  .brand-tag { display: none; }
}

@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    display: none;
    order: 3;
    width: 100%;
    margin: 0 0 16px;
  }
  /* is-open sinifini nav.js ekler */
  .site-nav.is-open { display: block; animation: submenu-in 0.22s var(--ease-out); }

  .site-header__inner { flex-wrap: wrap; }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    border-top: 1px solid var(--ink-200);
    padding-top: 12px;
  }
  .site-nav__link { width: 100%; justify-content: space-between; padding: 0.75rem 0.6rem; border-radius: var(--radius-sm); }
  .site-nav__link.is-current::after { left: 0.6rem; right: auto; width: 22px; bottom: 0.42rem; }
  .site-nav__submenu {
    position: static;
    box-shadow: none;
    border: 0;
    border-left: 2px solid var(--blue-100);
    border-radius: 0;
    min-width: 0;
    margin-left: 8px;
    padding: 0 0 8px 8px;
    animation: none;
  }
  /* lang-switch yalnizca Ingilizce site acikken basilir (config/site.php: en_enabled) */
  .site-header__actions .lang-switch { display: none; }

  .split { gap: 36px; }
}

@media (max-width: 640px) {
  .mobile-bar { display: flex; }
  body { padding-bottom: 76px; }
  .site-footer { padding-bottom: 24px; }

  /* Basliktaki demo dugmesi alt satira kayiyordu. Alttaki sabit cubukta
     zaten var, bu yuzden kucuk ekranda gizlenir ve baslik tek satir kalir. */
  .site-header__actions .btn { display: none; }
  .site-header__actions:empty { display: none; }
}