/* ==================== Genel ==================== */
html { scroll-behavior: smooth; }
::selection { background: #E2231A; color: #fff; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #F7F5F0; }
::-webkit-scrollbar-thumb { background: #161618; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #E2231A; }

/* ==================== Scroll Progress Bar ==================== */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, #E2231A, #FF5B52);
  z-index: 70;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(226,35,26,0.6);
}

/* ==================== Custom Cursor ==================== */
.cursor-ring {
  position: fixed;
  top: 0; left: 0;
  width: 30px; height: 30px;
  border: 1.5px solid rgba(226,35,26,0.7);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-100px, -100px);
  transition: transform 0.1s ease-out, width 0.25s ease, height 0.25s ease, background 0.25s ease, opacity 0.25s ease;
  opacity: 0;
  mix-blend-mode: difference;
}
.cursor-ring.visible { opacity: 1; }
.cursor-ring.hover-active { width: 54px; height: 54px; background: rgba(226,35,26,0.18); }
@media (max-width: 1024px), (pointer: coarse) {
  .cursor-ring { display: none; }
}

/* ==================== Header ==================== */
#siteHeader.scrolled {
  background: rgba(10, 10, 11, 0.94);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 30px -10px rgba(0,0,0,0.5);
  border-bottom: 1px solid rgba(226,35,26,0.15);
}
#siteHeader.scrolled #headerInner { height: 4.5rem; }

.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: #E2231A;
  transition: width 0.3s ease;
}
.nav-link:hover::after,
.nav-link.active-link::after { width: 100%; }
.nav-link.active-link { color: #E2231A !important; }

#mobileMenu.open { transform: translateX(0); }

/* ==================== Hero Slider ==================== */
.hero-slide {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.6s ease-in-out;
}
.hero-slide.active { opacity: 1; }

.hero-roofline {
  position: absolute;
  bottom: -1px; left: 0;
  width: 100%;
  height: 44px;
  line-height: 0;
  z-index: 20;
  pointer-events: none;
}
.hero-roofline svg { width: 100%; height: 100%; display: block; }
.hero-roofline polygon { fill: #0A0A0B; }
@media (min-width: 768px) {
  .hero-roofline { height: 64px; }
}

/* ==================== Marquee Ticker ==================== */
.marquee-strip {
  background: #0A0A0B;
  border-top: 2px solid #E2231A;
  border-bottom: 2px solid #E2231A;
  overflow: hidden;
  position: relative;
  padding: 0.9rem 0;
}
.marquee-track {
  display: flex;
  align-items: center;
  width: max-content;
  white-space: nowrap;
  animation: marquee-scroll 32s linear infinite;
}
.marquee-strip:hover .marquee-track { animation-play-state: paused; }
.marquee-item {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #fff;
  padding: 0 1.25rem;
}
.marquee-sep {
  color: #E2231A;
  font-size: 1.1rem;
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ==================== Partners Marquee ==================== */
.partners-marquee {
  position: relative;
  overflow: hidden;
  padding: 0.75rem 0;
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 6%, #000 94%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0, #000 6%, #000 94%, transparent 100%);
}
.partners-track {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  width: max-content;
  animation: partners-scroll 46s linear infinite;
}
.partners-marquee:hover .partners-track { animation-play-state: paused; }
@keyframes partners-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.partner-card {
  flex-shrink: 0;
  width: 10rem;
  height: 7rem;
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 10px 40px -10px rgba(22,22,24,0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.partner-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px -8px rgba(226,35,26,0.3);
}
.partner-card img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: filter 0.4s ease, opacity 0.4s ease;
}
.partner-card:hover img {
  filter: grayscale(0);
  opacity: 1;
}
@media (min-width: 640px) {
  .partner-card { width: 13rem; height: 8rem; padding: 1.5rem; }
}

/* ==================== Watermark Section Text ==================== */
.watermark-text {
  position: absolute;
  top: -1.75rem; left: 50%;
  transform: translateX(-50%);
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: clamp(3rem, 11vw, 7.5rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(22,22,24,0.07);
  white-space: nowrap;
  z-index: 0;
  pointer-events: none;
  user-select: none;
  letter-spacing: 0.03em;
}
.watermark-text.watermark-light {
  -webkit-text-stroke: 1px rgba(255,255,255,0.07);
}

/* ==================== Tarihçemiz Timeline ==================== */
.timeline-line {
  display: none;
  position: absolute;
  top: 2.6rem;
  left: 4%;
  right: 4%;
  height: 2px;
  background-image: repeating-linear-gradient(to right, rgba(22,22,24,0.18) 0, rgba(22,22,24,0.18) 8px, transparent 8px, transparent 18px);
  z-index: 0;
}
@media (min-width: 1024px) {
  .timeline-line { display: block; }
}
.timeline-item {
  position: relative;
  z-index: 1;
  text-align: center;
}
.timeline-year {
  display: inline-block;
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  color: #E2231A;
}
.timeline-dot {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #E2231A;
  border: 4px solid #fff;
  box-shadow: 0 0 0 2px rgba(226,35,26,0.35);
  margin: 0.65rem auto 0;
}
.timeline-dot-active {
  background: #161618;
  box-shadow: 0 0 0 2px rgba(22,22,24,0.35), 0 0 0 6px rgba(226,35,26,0.15);
}

/* ==================== Scroll Reveal ==================== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ==================== Architectural Notch Buttons ==================== */
.btn-notch {
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  border-radius: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ==================== Service Cards ==================== */
.service-card {
  will-change: transform;
  transform-style: preserve-3d;
}
.service-index {
  position: absolute;
  top: 10px; right: 16px;
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 2.5rem;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255,255,255,0.65);
  z-index: 2;
  pointer-events: none;
  line-height: 1;
}

/* ==================== Gallery ==================== */
.gallery-filter-btn {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.65rem 1.5rem;
  border-radius: 999px;
  border: 1px solid rgba(22,22,24,0.15);
  background: #fff;
  color: #161618;
  transition: all 0.3s ease;
  cursor: pointer;
}
.gallery-filter-btn:hover { border-color: #E2231A; color: #E2231A; }
.gallery-filter-btn.active {
  background: #161618;
  color: #F7F5F0;
  border-color: #161618;
}

.gallery-item {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  box-shadow: 0 10px 40px -10px rgba(22,22,24,0.25);
  transition: transform 0.3s ease;
}
.gallery-item.hide { display: none; }
.gallery-item:hover { transform: translateY(-6px); }
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.gallery-item:hover img { transform: scale(1.12); }
.gallery-overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 1.25rem;
  background: linear-gradient(to top, rgba(10,10,11,0.92) 0%, rgba(10,10,11,0.1) 65%, transparent 100%);
  opacity: 0;
  transition: opacity 0.35s ease;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }

/* ==================== Before / After Slider ==================== */
.ba-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  user-select: none;
  background: #0A0A0B;
}
.ba-img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.ba-after-wrap {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  width: 50%;
  overflow: hidden;
}
.ba-after-wrap::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 3px; height: 100%;
  background: #fff;
  box-shadow: 0 0 12px rgba(0,0,0,0.5);
}
.ba-after-wrap .ba-img { position: absolute; top: 0; left: 0; height: 100%; width: var(--ba-img-w, 100%); }

.ba-label {
  position: absolute;
  top: 1rem;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: #fff;
  background: rgba(10,10,11,0.7);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  z-index: 5;
  pointer-events: none;
}
.ba-label-before { left: 1rem; }
.ba-label-after { right: 1rem; background: rgba(226,35,26,0.85); }

.ba-slider input[type="range"] {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  margin: 0;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: ew-resize;
  z-index: 10;
}
.ba-slider input[type="range"]::-webkit-slider-runnable-track { background: transparent; }
.ba-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: #fff url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23161618"><path d="M8 5l-6 7 6 7M16 5l6 7-6 7"/></svg>') center/22px no-repeat;
  box-shadow: 0 6px 20px rgba(0,0,0,0.35);
  border: 3px solid #E2231A;
  cursor: ew-resize;
}
.ba-slider input[type="range"]::-moz-range-thumb {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: #fff url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23161618"><path d="M8 5l-6 7 6 7M16 5l6 7-6 7"/></svg>') center/22px no-repeat;
  box-shadow: 0 6px 20px rgba(0,0,0,0.35);
  border: 3px solid #E2231A;
  cursor: ew-resize;
}
.ba-slider input[type="range"]::-moz-range-track { background: transparent; border: none; }

/* ==================== Testimonials Carousel ==================== */
.testi-quote {
  position: absolute;
  top: -1.5rem; left: 50%;
  transform: translateX(-50%);
  font-family: Georgia, serif;
  font-size: 10rem;
  line-height: 1;
  color: rgba(226,35,26,0.09);
  z-index: 0;
  pointer-events: none;
  user-select: none;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px; height: 44px;
  border-radius: 50%;
  background: #161618;
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px -8px rgba(22,22,24,0.5);
  transition: all 0.3s ease;
  z-index: 10;
}
.carousel-arrow:hover { background: #E2231A; color: #fff; }

#testimonialDots button {
  width: 10px; height: 10px;
  border-radius: 999px;
  background: rgba(22,22,24,0.2);
  transition: all 0.3s ease;
}
#testimonialDots button.active {
  background: #E2231A;
  width: 28px;
}

/* ==================== Contact Form ==================== */
.form-input {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border-radius: 0.75rem;
  border: 1.5px solid rgba(22,22,24,0.15);
  background: #F7F5F0;
  font-size: 0.95rem;
  color: #161618;
  transition: all 0.25s ease;
}
.form-input:focus {
  outline: none;
  border-color: #E2231A;
  background: #fff;
  box-shadow: 0 0 0 4px rgba(226,35,26,0.15);
}
.form-input.input-error { border-color: #dc2626; }
.form-error {
  display: none;
  color: #dc2626;
  font-size: 0.78rem;
  margin-top: 0.35rem;
}
.form-error.show { display: block; }

/* ==================== Footer Socials ==================== */
.social-icon {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  transition: all 0.3s ease;
}
.social-icon:hover { background: #E2231A; color: #fff; transform: translateY(-3px); }

/* ==================== Floating Buttons ==================== */
.whatsapp-float {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  box-shadow: 0 10px 30px -6px rgba(37,211,102,0.7);
  z-index: 40;
  animation: pulse-wa 2.4s infinite;
}
.whatsapp-float:hover { transform: scale(1.08); }

@keyframes pulse-wa {
  0% { box-shadow: 0 0 0 0 rgba(37,211,102,0.55); }
  70% { box-shadow: 0 0 0 18px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}

.back-to-top {
  position: fixed;
  bottom: 28px; left: 28px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: #161618;
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 8px 24px -6px rgba(22,22,24,0.5);
  z-index: 40;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.35s ease;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: #E2231A; color: #fff; }

@media (max-width: 640px) {
  .whatsapp-float { bottom: 18px; right: 18px; width: 54px; height: 54px; font-size: 1.7rem; }
  .back-to-top { bottom: 18px; left: 18px; width: 44px; height: 44px; }
}