/* ==========================================================================
   Header / Nav
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(1.7);
  -webkit-backdrop-filter: blur(20px) saturate(1.7);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-med) var(--ease-out), background var(--dur-med) var(--ease-out);
}
.site-header.is-scrolled {
  border-bottom-color: var(--hairline);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.site-header__brand img {
  width: 30px; height: 30px;
  border-radius: 8px;
}

.site-header__controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--ink);
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-spring), background var(--dur-fast);
}
.icon-btn:hover { background: var(--glass-bg-strong); transform: scale(1.06); }
.icon-btn:active { transform: scale(0.92); }
.icon-btn svg { width: 18px; height: 18px; }

/* Language selector */
.lang-select-wrap { position: relative; }
.lang-select-trigger {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px 9px 12px;
  border-radius: 999px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--dur-fast);
}
.lang-select-trigger:hover { background: var(--glass-bg-strong); }
.lang-select-trigger svg:first-child { width: 15px; height: 15px; opacity: 0.7; }
.lang-select-trigger svg:last-child { width: 13px; height: 13px; opacity: 0.6; transition: transform var(--dur-fast); }
.lang-select-trigger[aria-expanded="true"] svg:last-child { transform: rotate(180deg); }

.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 190px;
  max-height: 340px;
  overflow-y: auto;
  border-radius: var(--r-md);
  padding: 8px;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(28px) saturate(1.8);
  -webkit-backdrop-filter: blur(28px) saturate(1.8);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.97);
  transition: opacity var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-spring),
              visibility var(--dur-fast);
  z-index: 200;
}
.lang-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.lang-menu__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  color: var(--ink);
  transition: background var(--dur-fast);
}
.lang-menu__item:hover { background: color-mix(in srgb, var(--blue) 10%, transparent); }
.lang-menu__item.is-active { color: var(--blue-2); font-weight: 650; }
.lang-menu__item.is-active::after {
  content: "✓";
  font-size: 12px;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  padding: 168px 0 80px;
  overflow: hidden;
}

.hero__glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 700px;
  background:
    radial-gradient(ellipse at 30% 20%, color-mix(in srgb, var(--blue) 18%, transparent), transparent 60%),
    radial-gradient(ellipse at 70% 40%, color-mix(in srgb, var(--violet) 14%, transparent), transparent 60%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}

.hero__icon {
  width: 88px; height: 88px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 113, 227, 0.25), 0 0 0 1px var(--glass-border);
  margin-bottom: 4px;
  animation: hero-icon-in 900ms var(--ease-spring) both;
}
@keyframes hero-icon-in {
  from { opacity: 0; transform: translateY(16px) scale(0.9); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.hero__title {
  max-width: 780px;
}

.hero__subtitle {
  max-width: 560px;
}

.hero__store-badges {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero__scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--ink-faint);
  z-index: 1;
  animation: scroll-cue-bob 2.2s ease-in-out infinite;
}
.hero__scroll-cue span { font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.hero__scroll-cue svg { width: 16px; height: 16px; }
@keyframes scroll-cue-bob {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.6; }
  50% { transform: translate(-50%, 6px); opacity: 1; }
}

/* -------------------------------------------------------------------------
   Scroll Driven Blur — hero bittiğinde camın arkasında eriyormuş gibi
   Hero, [data-blur-target]'e class .is-blurring eklenerek JS ile kontrol edilir
   ------------------------------------------------------------------------- */
.blur-transition {
  filter: blur(0px);
  opacity: 1;
  transform: scale(1);
  transition: filter var(--dur-slow) var(--ease-out),
              opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
  will-change: filter, opacity, transform;
}

/* Section intro reveal (used broadly) */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}