/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: var(--header-h);
  color: #fff;
  border-bottom: 1px solid transparent;
  transition: height .25s, background-color .25s, border-color .25s;
}
.header-inner {
  height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  border: 1px solid transparent; border-radius: 999px;
  transition: width .35s, margin .35s, padding .35s, background-color .35s, border-color .35s, box-shadow .35s;
}
/* Kaydırınca menü, ekranın üstünde yüzen cam bir kapsüle dönüşür */
.site-header.is-scrolled { --header-h: 64px; }
.site-header.is-scrolled .header-inner {
  width: min(1120px, 100% - 20px);
  margin-top: 10px; padding: 0 8px 0 22px;
  background: rgba(11, 13, 16, .9); border-color: rgba(255, 255, 255, .1);
  box-shadow: 0 14px 40px -14px rgba(0, 0, 0, .6);
  -webkit-backdrop-filter: blur(14px) saturate(140%); backdrop-filter: blur(14px) saturate(140%);
}
.site-header.nav-open { --header-h: 70px; background: var(--night); border-color: var(--line-dark); }
.site-header.nav-open .header-inner {
  width: min(var(--container), 100% - 32px); margin-top: 0; padding: 0;
  background: none; border-color: transparent; box-shadow: none; border-radius: 0;
  -webkit-backdrop-filter: none; backdrop-filter: none;
}

/* Logo (şeffaf; rengi bulunduğu zeminden alır) */
.brand { display: inline-grid; justify-items: center; gap: 3px; color: #fff; text-decoration: none; }
.brand-mark { width: 112px; height: 43px; transition: width .25s, height .25s; }
.brand-sub { font-size: .7rem; font-weight: 700; letter-spacing: .55em; margin-right: -.55em; }
.is-scrolled .brand-mark { width: 96px; height: 37px; }
.is-scrolled .brand-sub { font-size: .62rem; }

.main-nav { display: flex; align-items: center; gap: 2.25rem; }
/* Menü linkleri cam bir kapsülün içinde; aktif bölüm dolgu ile belirtilir */
.main-nav ul {
  display: flex; gap: 2px; padding: 5px;
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1); border-radius: 999px;
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  transition: background-color .35s, border-color .35s;
}
.is-scrolled .main-nav ul { background: transparent; border-color: transparent; -webkit-backdrop-filter: none; backdrop-filter: none; }
.main-nav ul a {
  display: block; padding: .45rem .95rem; border-radius: 999px;
  font-weight: 600; font-size: .92rem; text-decoration: none;
  color: rgba(255, 255, 255, .75); transition: color .2s, background-color .2s;
}
.main-nav ul a:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.main-nav ul a[aria-current] { color: #fff; background: rgba(255, 255, 255, .13); }
.nav-cta { min-height: 44px; font-size: .9rem; padding-left: 1.1rem; }
.nav-cta .icon { width: 34px; height: 34px; padding: 9px; }

.nav-toggle {
  display: none; width: 44px; height: 44px; padding: 10px;
  background: none; border: 0; border-radius: 8px;
  flex-direction: column; justify-content: center; gap: 6px;
}
.nav-toggle span { display: block; height: 2px; background: #fff; border-radius: 2px; transition: transform .25s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 960px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 1.25rem;
    padding: .5rem 16px 1.75rem;
    background: var(--night); border-bottom: 1px solid var(--line-dark);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .2s, transform .2s, visibility .2s;
  }
  .main-nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .main-nav ul { flex-direction: column; gap: 0; padding: 0; background: none; border: 0; border-radius: 0; }
  .main-nav ul a { padding: .95rem 0; font-size: 1.05rem; border-radius: 0; border-bottom: 1px solid var(--line-dark); }
  .main-nav ul a:hover, .main-nav ul a[aria-current] { background: none; }
  .main-nav ul a[aria-current] { color: var(--orange); }
  .nav-cta { min-height: 52px; justify-content: space-between; }
}

/* ===== Footer ===== */
.site-footer { background: #070809; color: var(--gray); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .brand { margin-bottom: 18px; }
.footer-brand p { max-width: 34ch; font-size: .92rem; }
.footer-title {
  font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: #fff; margin-bottom: 16px;
}
.footer-links { display: grid; gap: 10px; font-size: .92rem; }
.footer-links a { color: #D3D6DA; text-decoration: none; }
.footer-links a[href]:hover { color: var(--orange); }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line-dark);
  font-size: .85rem;
}
.footer-bottom a { color: #D3D6DA; }
.photo-credit { font-size: .78rem; }
.footer-bottom a:hover { color: var(--orange); }

@media (max-width: 960px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; gap: 32px; } }

/* ===== Hizmet detayı penceresi ===== */
.service-dialog {
  width: min(640px, 100% - 32px); max-height: calc(100dvh - 32px);
  margin: auto; padding: 0; border: 0; border-radius: 18px;
  background: #fff; color: var(--text-dark);
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .5);
}
.service-dialog::backdrop { background: rgba(11, 13, 16, .72); }
.service-dialog[open] { animation: dialog-in .25s ease; }
@keyframes dialog-in { from { opacity: 0; transform: translateY(12px); } }
body:has(.service-dialog[open]) { overflow: hidden; }

.sd-inner { position: relative; padding: 36px; }
.sd-close {
  position: absolute; top: 16px; right: 16px;
  width: 40px; height: 40px; display: grid; place-items: center;
  background: var(--offwhite); border: 0; border-radius: 50%;
}
.sd-close:hover { background: var(--line-light); }
.sd-icon {
  width: 52px; height: 52px; display: grid; place-items: center;
  background: var(--night); color: var(--orange); border-radius: 12px; margin-bottom: 20px;
}
.service-dialog .eyebrow { color: var(--orange-ink); margin-bottom: .5rem; }
.service-dialog h2 { font-size: clamp(1.45rem, 3vw, 1.85rem); margin-bottom: 12px; padding-right: 40px; }
.service-dialog h3 { font-size: 1rem; margin: 24px 0 10px; }
.sd-intro, #sdFit { color: var(--gray-ink); }
.sd-note { margin-top: 16px; font-size: .88rem; color: var(--gray-ink); padding: .7rem .9rem; background: var(--offwhite); border-radius: 10px; }
.sd-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.check-list { display: grid; gap: 8px; }
.check-list li { position: relative; padding-left: 28px; }
.check-list li::before {
  content: ""; position: absolute; left: 2px; top: .45em;
  width: 12px; height: 7px;
  border-left: 2.5px solid var(--orange-ink); border-bottom: 2.5px solid var(--orange-ink);
  transform: rotate(-45deg);
}

@media (max-width: 560px) {
  .sd-inner { padding: 28px 22px; }
  .sd-actions .btn { flex: 1 1 100%; }
}