html {
  scroll-behavior: smooth;
}

:root {
  /* Arslankaya Light Corporate Palette */
  --bg-color: #ffffff;
  --bg-soft: #f7f8fa;
  --surface-card: #ffffff;
  --text-main: #1a1a1a;
  --text-muted: #6b7280;
  
  /* Logo Orange */
  --accent-color: #E8461E;
  --accent-hover: #c73a16;
  --accent-glow: rgba(232, 70, 30, 0.15);
  --accent-light: rgba(232, 70, 30, 0.06);
  
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 15px 40px rgba(0,0,0,0.1);
  
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-color);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a, button, input, textarea {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

ul { list-style: none; }

/* PRELOADER */
#preloader {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: #fff;
  z-index: 10000;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 0.8s ease, visibility 0.8s;
}

.preloader-logo {
  animation: preloader-pulse 2s infinite ease-in-out;
}

.preloader-logo img {
  height: 60px;
}

@keyframes preloader-pulse {
  0% { transform: scale(0.95); opacity: 0.5; }
  50% { transform: scale(1.05); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.5; }
}

/* ─── HEADER ─────────────────────────────────────────────────────────── */
header {
  position: fixed;
  top: 0; left: 0; width: 100%;
  padding: 0 5%;
  height: 72px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 2000;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
}

header.scrolled {
  height: 62px;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 24px rgba(0,0,0,0.07);
}

.logo-container img {
  height: 54px;
  transition: transform 0.3s ease;
}
.logo-container:hover img { transform: scale(1.03); }

/* ── Desktop Nav ──────────────────────────── */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-item {
  font-size: 0.88rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: 6px;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.nav-item:hover, .nav-item.active {
  color: var(--accent-color);
  background: rgba(232,70,30,0.06);
}

.nav-item svg { transition: transform 0.3s ease; }
.nav-dropdown-wrap:hover .nav-item svg { transform: rotate(180deg); }

/* ── Header Right ─────────────────────────── */
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-color);
  color: #fff !important;
  padding: 9px 20px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(232,70,30,0.3);
  white-space: nowrap;
}
.header-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(232,70,30,0.4);
}

/* ── Dropdown Wrap ────────────────────────── */
.nav-dropdown-wrap {
  position: relative;
}

/* ── Standard Dropdown ────────────────────── */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.12), 0 4px 20px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.06);
  padding: 10px;
  min-width: 240px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  z-index: 3000;
}

.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px; height: 12px;
  background: #fff;
  border-left: 1px solid rgba(0,0,0,0.06);
  border-top: 1px solid rgba(0,0,0,0.06);
}

.nav-dropdown-wrap:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  transition: background 0.2s ease;
  color: var(--text-main);
}
.dropdown-item:hover { background: rgba(232,70,30,0.06); }
.drop-icon { font-size: 1.3rem; flex-shrink: 0; }
.dropdown-item strong { display: block; font-size: 0.88rem; line-height: 1.3; }
.dropdown-item small { display: block; font-size: 0.76rem; color: var(--text-muted); margin-top: 1px; }

/* ── Mega Menu ────────────────────────────── */
.nav-mega {
  position: fixed;
  top: 72px;
  left: 0; right: 0;
  background: #fff;
  border-top: 3px solid var(--accent-color);
  box-shadow: 0 24px 64px rgba(0,0,0,0.12);
  padding: 32px 5% 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
  z-index: 3000;
}

header.scrolled ~ * .nav-mega,
header.scrolled .nav-mega { top: 62px; }

.mega-wrap:hover .nav-mega {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}
.mega-header span {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 700;
  color: var(--text-muted);
}
.mega-all-link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-color);
  transition: gap 0.2s;
}
.mega-all-link:hover { letter-spacing: 0.5px; }

.mega-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.mega-cat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px 16px;
  border-radius: 12px;
  border: 1.5px solid transparent;
  background: #fafafa;
  transition: all 0.25s ease;
  color: var(--text-main);
}
.mega-cat:hover {
  background: rgba(232,70,30,0.05);
  border-color: rgba(232,70,30,0.2);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(232,70,30,0.1);
}
.mega-cat-icon { font-size: 2rem; margin-bottom: 10px; }
.mega-cat-name { font-size: 0.88rem; font-weight: 700; margin-bottom: 6px; color: var(--text-main); }
.mega-cat-count { font-size: 0.75rem; color: var(--text-muted); line-height: 1.4; }

.mega-footer-bar {
  display: flex;
  gap: 32px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Hamburger ─────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
  cursor: pointer;
  z-index: 2100;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── MOBILE OVERLAY ─────────────────────────────────────────────────── */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 1900;
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s ease;
}
.mobile-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu {
  position: absolute;
  top: 0; right: 0;
  width: 320px; max-width: 90vw;
  height: 100%;
  background: #fff;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
  overflow-y: auto;
}
.mobile-overlay.open .mobile-menu { transform: translateX(0); }

.mobile-menu-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}
.mobile-logo { height: 36px; }
.mobile-close {
  background: none; border: none;
  font-size: 1.4rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.2s;
}
.mobile-close:hover { background: #f5f5f5; color: var(--text-main); }

.mobile-nav { padding: 16px 0; flex: 1; }
.mobile-nav-link {
  display: block;
  padding: 14px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  border-bottom: 1px solid rgba(0,0,0,0.04);
  transition: all 0.2s;
}
.mobile-nav-link:hover { color: var(--accent-color); background: rgba(232,70,30,0.04); }

.mobile-accordion { border-bottom: 1px solid rgba(0,0,0,0.04); }
.mobile-accordion-btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 14px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s;
}
.mobile-accordion-btn:hover { color: var(--accent-color); background: rgba(232,70,30,0.04); }
.mobile-accordion-btn svg { transition: transform 0.3s ease; }
.mobile-accordion.open .mobile-accordion-btn svg { transform: rotate(180deg); }

.mobile-accordion-body {
  max-height: 0;
  overflow: hidden;
  background: #fafafa;
  transition: max-height 0.35s ease;
}
.mobile-accordion.open .mobile-accordion-body { max-height: 300px; }
.mobile-sub-link {
  display: block;
  padding: 11px 24px 11px 36px;
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: all 0.2s;
}
.mobile-sub-link:hover { color: var(--accent-color); }

.mobile-contact {
  padding: 20px 24px;
  border-top: 2px solid var(--accent-color);
  background: #fafafa;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mobile-contact-item {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.mobile-contact-item:hover { color: var(--accent-color); }



/* BUTTONS */
.btn-primary {
  display: inline-block;
  padding: 16px 42px;
  background: var(--accent-color);
  color: #fff;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  box-shadow: 0 8px 25px var(--accent-glow);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 35px var(--accent-glow);
}

.btn-secondary {
  display: inline-block;
  padding: 16px 42px;
  background: transparent;
  color: var(--text-main);
  border: 1.5px solid var(--border-color);
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  margin-left: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.4s ease;
}

.btn-secondary:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #fafafa 0%, #fff 50%, #fef5f2 100%);
}

.hero-bg-layer {
  position: absolute;
  top: -10%; left: -10%; width: 120%; height: 120%;
  pointer-events: none;
  background:
    radial-gradient(circle at 85% 15%, rgba(232, 70, 30, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 15% 85%, rgba(232, 70, 30, 0.03) 0%, transparent 50%);
  transition: transform 0.1s ease-out;
}

.hero-content {
  text-align: center;
  z-index: 10;
  max-width: 850px;
  padding: 0 20px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 4.2rem;
  line-height: 1.1;
  font-weight: 800;
  margin-bottom: 25px;
  letter-spacing: -1px;
  color: var(--text-main);
}

.hero-title span {
  color: var(--accent-color);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 45px;
  font-weight: 400;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

/* UTILITIES */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

.section { padding: 120px 0; }

.section-title {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 2.8rem;
  margin-bottom: 1rem;
  font-weight: 700;
  color: var(--text-main);
}

.section-title span {
  color: var(--accent-color);
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 4rem;
  font-size: 1.1rem;
}

/* ══════════════════════════════════════ */
/* FOOTER CTA BAND */
.footer-cta {
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}
.footer-cta::before {
  content: '';
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background: radial-gradient(circle at 80% 50%, rgba(232, 70, 30, 0.15) 0%, transparent 50%);
  pointer-events: none;
}
.cta-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 40px; flex-wrap: wrap;
}
.cta-text h2 {
  font-family: var(--font-heading);
  font-size: 2.2rem; font-weight: 700; color: #fff;
  margin-bottom: 8px;
}
.cta-text h2 span { color: var(--accent-color); }
.cta-text p { color: rgba(255,255,255,0.6); font-size: 1rem; }
.cta-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 36px; background: var(--accent-color); color: #fff;
  border-radius: 8px; font-weight: 700; font-size: 0.95rem;
  text-transform: uppercase; letter-spacing: 1px;
  transition: all 0.4s ease; text-decoration: none;
  box-shadow: 0 8px 25px rgba(232, 70, 30, 0.3);
  flex-shrink: 0;
}
.cta-btn:hover {
  background: var(--accent-hover); transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(232, 70, 30, 0.4);
}
.cta-btn svg { transition: transform 0.3s ease; }
.cta-btn:hover svg { transform: translateX(4px); }

/* ══════════════════════════════════════ */
/* PREMIUM FOOTER */
.site-footer {
  background: #111111;
  padding: 0 0 0;
  position: relative;
}
.footer-accent-line {
  height: 3px;
  background: linear-gradient(90deg, var(--accent-color), #ff8a50, var(--accent-color));
}
.site-footer .container {
  padding-top: 70px;
  padding-bottom: 30px;
}
.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 50px;
  margin-bottom: 50px;
}
.footer-logo {
  height: 42px; margin-bottom: 20px;
  filter: brightness(0) invert(1); /* White logo on dark bg */
  opacity: 0.9;
}
.footer-desc {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem; line-height: 1.7;
  margin-bottom: 24px;
}
.footer-social {
  display: flex; gap: 12px;
}
.social-link {
  width: 40px; height: 40px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.12);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.5);
  transition: all 0.3s ease;
}
.social-link:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: rgba(232, 70, 30, 0.1);
  transform: translateY(-3px);
}
.site-footer .footer-col h4 {
  font-family: var(--font-heading);
  font-size: 1rem; font-weight: 700;
  color: #fff; margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  position: relative; padding-bottom: 12px;
}
.site-footer .footer-col h4::after {
  content: '';
  position: absolute; left: 0; bottom: 0;
  width: 24px; height: 2px;
  background: var(--accent-color);
}
.footer-links {
  list-style: none; padding: 0; margin: 0;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  transition: all 0.3s ease;
  position: relative; padding-left: 0;
}
.footer-links a::before {
  content: '→'; margin-right: 8px;
  opacity: 0; transform: translateX(-8px);
  display: inline-block;
  transition: all 0.3s ease;
  color: var(--accent-color);
}
.footer-links a:hover {
  color: #fff; padding-left: 4px;
}
.footer-links a:hover::before {
  opacity: 1; transform: translateX(0);
}
.footer-contact-list {
  list-style: none; padding: 0; margin: 0;
}
.footer-contact-list li {
  display: flex; align-items: flex-start; gap: 12px;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem; line-height: 1.6;
}
.footer-contact-list li svg {
  flex-shrink: 0; margin-top: 3px;
  color: var(--accent-color);
}
.footer-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  margin-bottom: 25px;
}
.site-footer .footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  padding-top: 0; border-top: none;
}
.site-footer .footer-bottom p {
  color: rgba(255,255,255,0.35);
  font-size: 0.82rem; margin: 0;
}
.footer-flag { font-size: 0.82rem; }
.footer-legal-links {
  display: flex; gap: 20px; flex-wrap: wrap;
}
.footer-legal-links a {
  color: rgba(255,255,255,0.35);
  font-size: 0.82rem;
  transition: color 0.3s ease;
}
.footer-legal-links a:hover { color: var(--accent-color); }


/* ─── RESPONSIVE ──────────────────────────────────────────────────────── */
@media (max-width: 992px) {
  .mega-grid { grid-template-columns: repeat(3, 1fr); }
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .header-cta { display: none; }
}

@media (max-width: 768px) {
  /* Header */
  header { height: 68px; padding: 0 20px; }
  .logo-container img { height: 44px; }
  .hamburger { display: flex; }

  /* Hero */
  .hero { padding-top: 62px; min-height: 85vh; }
  .hero-content { padding: 0 20px; }
  .hero-title { font-size: 2rem; line-height: 1.25; }
  .hero-subtitle { font-size: 0.95rem; }
  .hero-cta { flex-direction: column; gap: 12px; align-items: flex-start; }
  .hero-cta .btn-secondary { margin-left: 0; }
  .btn-primary, .btn-secondary { padding: 13px 28px; font-size: 0.9rem; }

  /* Stats bar */
  .stats-bar { flex-wrap: wrap; }
  .stat-item { width: 50%; border-right: none !important; border-bottom: 1px solid var(--border-color); padding: 20px 16px; text-align: center; }
  .stat-number { font-size: 2rem; }

  /* Marquee */
  .ticker-text { font-size: 0.78rem; }

  /* Sections */
  .section { padding: 70px 0; }
  .section-title { font-size: 1.9rem; }
  .section-subtitle { font-size: 0.95rem; margin-bottom: 2.5rem; }
  .container { padding: 0 18px; }

  /* Kurumsal istatistikler */
  .kurumsal-stats { grid-template-columns: 1fr 1fr; gap: 16px; }
  .kurumsal-content { grid-template-columns: 1fr; gap: 30px; }

  /* Ürün grid */
  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .product-card-img { height: 160px; }
  .filter-bar { gap: 8px; flex-wrap: wrap; }
  .filter-btn { padding: 7px 14px; font-size: 0.78rem; }

  /* İletişim */
  .contact-grid { grid-template-columns: 1fr; gap: 24px; }

  /* Footer CTA */
  .cta-inner { flex-direction: column; text-align: center; gap: 24px; }
  .cta-text h2 { font-size: 1.7rem; }

  /* Footer */
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 12px; }
  .mega-footer-bar { flex-direction: column; gap: 6px; }

  /* Neden Arslankaya */
  .why-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.7rem; }
  .products-grid { grid-template-columns: 1fr; }
  .kurumsal-stats { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .stat-item { width: 100%; }
  .mega-grid { grid-template-columns: 1fr 1fr; }
  .footer-social { justify-content: flex-start; }
  .section-title { font-size: 1.65rem; }
}