/* Ortak header ve footer: tüm sayfalarda aynı görünüm */

.site-header {
  position: fixed;
  top: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  width: min(1120px, 92vw);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.55rem 0.55rem 0.55rem 1.5rem;
  border-radius: 999px;
  background: rgba(11, 11, 11, 0.6);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
  color: #f5f5f5;
  font-family: 'Montserrat', sans-serif;
  transition: background 0.4s ease;
}
.site-header.is-scrolled {
  background: rgba(11, 11, 11, 0.9);
}

.site-header__logo {
  font-family: 'Great Vibes', cursive;
  font-size: 1.9rem;
  line-height: 1;
  color: #f5f5f5;
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: 1.6rem;
}
.site-nav a {
  position: relative;
  color: rgba(245, 245, 245, 0.75);
  text-decoration: none;
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: color 0.3s ease;
}
.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: #f5f5f5;
  transition: width 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.site-nav a:hover,
.site-nav a:focus-visible {
  color: #ffffff;
  outline: none;
}
.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  width: 100%;
}

.site-header__cta {
  padding: 0.8em 1.5em;
  border-radius: 999px;
  background: #f5f5f5;
  color: #0b0b0b;
  text-decoration: none;
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: background 0.3s ease;
}
.site-header__cta:hover,
.site-header__cta:focus-visible {
  background: #ffffff;
  outline: none;
}

.site-header__toggle {
  display: none;
  position: relative;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  cursor: pointer;
}
.site-header__toggle span {
  position: absolute;
  left: 50%;
  width: 14px;
  height: 1.5px;
  background: #f5f5f5;
  transform: translateX(-50%);
  transition: transform 0.3s ease;
}
.site-header__toggle span:first-child { top: 39%; }
.site-header__toggle span:last-child { top: 58%; }
.site-header__toggle[aria-expanded="true"] span:first-child {
  top: 49%;
  transform: translateX(-50%) rotate(45deg);
}
.site-header__toggle[aria-expanded="true"] span:last-child {
  top: 49%;
  transform: translateX(-50%) rotate(-45deg);
}

.site-footer {
  position: relative;
  z-index: 1;
  margin: 5rem 2vw 2vw;
  padding: 6vh 5vw 3vh;
  border-radius: 28px;
  background:
    radial-gradient(120% 70% at 50% 110%, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0) 60%),
    #0b0b0b;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #f5f5f5;
  font-family: 'Montserrat', sans-serif;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4vw;
}
.site-footer__logo {
  display: block;
  width: 96px;
  height: 96px;
  margin: 0 0 1rem;
  padding: 6px;
  border-radius: 50%;
  object-fit: contain;
  background: #ffffff;
}
.site-footer__brand {
  margin: 0 0 1rem;
  font-family: 'Great Vibes', cursive;
  font-size: 3rem;
  line-height: 1;
  color: #f5f5f5;
}
.site-footer p {
  margin: 0 0 0.6rem;
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(245, 245, 245, 0.7);
}
.site-footer h4 {
  margin: 0 0 1rem;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(245, 245, 245, 0.5);
}
.site-footer ul {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.85rem;
}
.site-footer a {
  color: rgba(245, 245, 245, 0.85);
  text-decoration: none;
  transition: color 0.3s ease;
}
.site-footer a:hover,
.site-footer a:focus-visible {
  color: #ffffff;
}
.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 6vh;
  padding-top: 1.6rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(245, 245, 245, 0.6);
}

@media (max-width: 900px) {
  .site-nav {
    display: none;
    position: absolute;
    top: calc(100% + 0.6rem);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    padding: 1.6rem;
    border-radius: 24px;
    background: #0b0b0b;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  .site-nav.is-open {
    display: flex;
  }
  .site-header__cta {
    display: none;
  }
  .site-header__toggle {
    display: block;
  }
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
  .site-footer__bottom {
    flex-direction: column;
  }
}