/* ==========================================================================
   AKGÜN YATIRIM — Premium Animations & Micro-Interactions
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Brand Preloader
   -------------------------------------------------------------------------- */
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: var(--bg-dark);
  z-index: 99999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.7s var(--ease-expo), visibility 0.7s var(--ease-expo);
}

#preloader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-spinner {
  width: 56px;
  height: 56px;
  border: 2.5px solid rgba(200, 162, 83, 0.2);
  border-top-color: var(--color-gold-bright);
  border-radius: 50%;
  animation: spin 0.9s infinite linear;
  margin-bottom: 18px;
}

.preloader-logo {
  height: 44px;
  width: auto;
  animation: pulseLogo 2s infinite ease-in-out;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes pulseLogo {
  0%, 100% { opacity: 0.7; transform: scale(0.97); }
  50% { opacity: 1; transform: scale(1.03); }
}

/* --------------------------------------------------------------------------
   2. Scroll Progress Bar
   -------------------------------------------------------------------------- */
.scroll-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2.5px;
  background: transparent;
  z-index: 10001;
  pointer-events: none;
}

.scroll-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-olive-primary), var(--color-gold-accent), var(--color-gold-bright));
  transition: width 0.1s ease-out;
}

/* --------------------------------------------------------------------------
   3. Mouse Scroll Down Indicator
   -------------------------------------------------------------------------- */
.scroll-down-indicator {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity var(--t-fast);
}

.scroll-down-indicator:hover { opacity: 0.75; }

.scroll-down-mouse {
  width: 22px;
  height: 34px;
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  border-radius: 11px;
  position: relative;
}

.scroll-down-wheel {
  width: 3px;
  height: 7px;
  background: var(--color-gold-bright);
  border-radius: 2px;
  position: absolute;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 2s infinite ease-in-out;
}

.scroll-down-arrow {
  width: 14px;
  height: 14px;
  animation: bounceArrow 1.8s infinite ease-in-out;
}

@keyframes scrollWheel {
  0% { opacity: 1; transform: translate(-50%, 0); }
  75% { opacity: 0; transform: translate(-50%, 12px); }
  100% { opacity: 0; transform: translate(-50%, 0); }
}

@keyframes bounceArrow {
  0%, 100% { transform: translateY(0); }
  40% { transform: translateY(5px); }
  60% { transform: translateY(2px); }
}

/* --------------------------------------------------------------------------
   4. Back to Top Button
   -------------------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 96px;
  right: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(20, 34, 17, 0.85);
  color: var(--color-gold-bright);
  border: 1px solid rgba(200, 162, 83, 0.28);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--t-normal);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-olive-primary);
  color: #fff;
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 10px 28px rgba(45, 71, 36, 0.4);
}

.back-to-top svg { width: 18px; height: 18px; }

/* --------------------------------------------------------------------------
   5. Card & Button Micro Transitions
   -------------------------------------------------------------------------- */
.btn:focus-visible {
  outline: 3px solid var(--color-gold-bright);
  outline-offset: 3px;
}

img[loading="lazy"] {
  transition: opacity 0.4s ease-in-out;
}