/* =============================================
   KrosPlastik — Ana Stil Dosyası
   Tasarım İlhami: Devitech.co.uk
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@600;700;800&display=swap');

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:       #0f2748;
  --navy-mid:   #1B3A6B;
  --navy-light: #2a527a;
  --orange:     #F26F21;
  --orange-dk:  #d45c10;
  --white:      #ffffff;
  --bg-light:   #F4F7FB;
  --bg-card:    #ffffff;
  --text-dark:  #1e293b;
  --text-mid:   #475569;
  --text-light: #94a3b8;
  --border:     #e2e8f0;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 12px 40px rgba(0,0,0,.14);
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --transition: .25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; overflow-x: hidden; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---- Typography ---- */
h1, h2, h3, h4, h5 {
  font-family: 'Poppins', 'Inter', sans-serif;
  line-height: 1.2;
  color: var(--navy);
}

.section-label {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: .75rem;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-mid);
  max-width: 560px;
  line-height: 1.7;
}

/* ---- Layout Helpers ---- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-pad { padding: 96px 0; }
.section-pad-sm { padding: 64px 0; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
  border-color: var(--orange);
}
.btn-primary:hover {
  background: var(--orange-dk);
  border-color: var(--orange-dk);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(242,111,33,.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--white);
}

.btn-outline-navy {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline-navy:hover {
  background: var(--navy);
  color: var(--white);
}

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ==============================================
   HEADER / NAV
   ============================================== */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(15,39,72,.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: box-shadow var(--transition);
}

#header.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,.25); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 32px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo img {
  height: 44px;
  width: auto;
  filter: brightness(0) invert(1);
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-text .brand { font-weight: 800; font-size: 1.2rem; color: var(--white); letter-spacing: -.02em; }
.logo-text .sub   { font-size: .65rem; color: rgba(255,255,255,.55); letter-spacing: .08em; text-transform: uppercase; }

/* Primary Nav */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item { position: relative; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  font-size: .9rem;
  font-weight: 500;
  color: rgba(255,255,255,.82);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-link:hover,
.nav-link.active {
  color: var(--white);
  background: rgba(255,255,255,.1);
}
.nav-link svg { width: 14px; height: 14px; transition: transform var(--transition); }
.nav-item:hover .nav-link svg { transform: rotate(180deg); }

/* Dropdown */
.nav-item { position: relative; }

/* Invisible bridge: fills the gap between nav-link and dropdown so hover stays active */
.nav-item::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 0;
  right: 0;
  height: 12px;
  display: block;
}

.dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  min-width: 220px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
  pointer-events: none;
}
.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.dropdown a {
  display: block;
  padding: 10px 14px;
  font-size: .875rem;
  color: var(--text-dark);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  font-weight: 500;
}
.dropdown a:hover {
  background: var(--bg-light);
  color: var(--orange);
  padding-left: 20px;
}

/* Nav CTA */
.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nav-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,.7);
  font-size: .85rem;
  font-weight: 500;
}
.nav-phone svg { width: 15px; height: 15px; color: var(--orange); }
.nav-phone:hover { color: var(--white); }

/* Hamburger — mobile-first: default görünür, sadece desktop'ta gizle */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: none;
  border: none;
}
@media (min-width: 1025px) {
  .hamburger { display: none; }
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---- Dil değiştirici ---- */
.lang-switcher { position: relative; }

.lang-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 11px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,.85);
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
  letter-spacing: .03em;
}
.lang-btn:hover { background: rgba(255,255,255,.14); color: var(--white); }

.lang-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 148px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all var(--transition);
  pointer-events: none;
  z-index: 1001;
}
.lang-switcher.open .lang-dropdown,
.lang-switcher:focus-within .lang-dropdown {
  opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto;
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  font-size: .875rem;
  color: var(--text-dark);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  font-weight: 500;
  text-decoration: none;
}
.lang-option:hover { background: var(--bg-light); color: var(--orange); }
.lang-option.lang-active { color: var(--orange); font-weight: 700; }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px; left: 0; right: 0; bottom: 0;
  background: var(--navy);
  padding: 24px;
  overflow-y: auto;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  display: block;
  padding: 14px 16px;
  font-size: 1rem;
  color: rgba(255,255,255,.82);
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: all var(--transition);
}
.mobile-menu a:hover { background: rgba(255,255,255,.1); color: var(--white); }
.mobile-menu .mobile-cat {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--orange);
  font-weight: 700;
  padding: 16px 16px 4px;
}

/* ==============================================
   HERO SECTION
   ============================================== */
#hero {
  position: relative;
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #0a1e3d 0%, #0f2748 40%, #1a3a5c 100%);
  overflow: hidden;
  min-height: 100vh;
  min-height: 100svh; /* mobile browser chrome'u hesaba katar */
  display: flex;
  align-items: center;
}

/* ========== STATS ŞERİDİ ========== */
.stats-strip {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,.07);
  border-bottom: 3px solid rgba(242,111,33,.35);
}
.stats-strip-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.ssi-item {
  padding: 30px 20px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,.08);
  transition: background var(--transition);
}
.ssi-item:last-child { border-right: none; }
.ssi-item:hover { background: rgba(255,255,255,.04); }
.ssi-number {
  font-family: 'Poppins', sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  display: block;
}
.ssi-number sup { color: var(--orange); font-size: .65em; vertical-align: super; }
.ssi-label {
  display: block;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: rgba(255,255,255,.45);
  margin-top: 7px;
}
@media (max-width: 640px) {
  .stats-strip-inner { grid-template-columns: repeat(2, 1fr); }
  .ssi-item:nth-child(2) { border-right: none; }
  .ssi-item:nth-child(1),
  .ssi-item:nth-child(2) { border-bottom: 1px solid rgba(255,255,255,.08); }
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 70% 50%, rgba(242,111,33,.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 90% 80%, rgba(27,58,107,.4) 0%, transparent 60%);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: .04;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(255,255,255,1) 40px, rgba(255,255,255,1) 41px),
    repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(255,255,255,1) 40px, rgba(255,255,255,1) 41px);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(242,111,33,.2);
  border: 1px solid rgba(242,111,33,.4);
  color: #ffb380;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-badge::before {
  content: '';
  width: 7px; height: 7px;
  background: var(--orange);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.4); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 20px;
}
.hero-title span { color: var(--orange); }

.hero-text {
  font-size: 1rem;
  color: rgba(255,255,255,.72);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 540px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 24px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.hero-stat {}
.hero-stat .number {
  font-family: 'Poppins', sans-serif;
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.hero-stat .number span { color: var(--orange); }
.hero-stat .label {
  font-size: .72rem;
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
  letter-spacing: .07em;
  margin-top: 4px;
}

/* ==============================================
   FEATURES / WHY US
   ============================================== */
#features { background: var(--bg-light); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  border: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-card:hover::after { transform: scaleX(1); }

.feature-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feature-icon svg { width: 26px; height: 26px; color: var(--white); }

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--navy);
}
.feature-card p { font-size: .9rem; color: var(--text-mid); line-height: 1.65; }

/* ==============================================
   PRODUCTS SECTION (index.html)
   ============================================== */
#products {}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

/* Category tabs */
.cat-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.cat-tab {
  padding: 10px 22px;
  border-radius: 50px;
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid var(--border);
  color: var(--text-mid);
  background: var(--white);
  transition: all var(--transition);
}
.cat-tab.active,
.cat-tab:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

/* Product grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all var(--transition);
  cursor: pointer;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(242,111,33,.3);
}

.product-img-wrap {
  aspect-ratio: 4/3;
  background: var(--bg-light);
  overflow: hidden;
  position: relative;
}
.product-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.product-card:hover .product-img-wrap img { transform: scale(1.05); }

.product-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--navy);
  color: var(--white);
  font-size: .7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: .05em;
}

.product-body {
  padding: 20px;
}
.product-code {
  font-size: .75rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.product-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
  line-height: 1.3;
}
.product-desc {
  font-size: .85rem;
  color: var(--text-mid);
  line-height: 1.55;
  margin-bottom: 14px;
}
.product-specs {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.product-spec {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.product-spec .spec-label {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-light);
  font-weight: 600;
}
.product-spec .spec-value {
  font-size: .82rem;
  font-weight: 700;
  color: var(--text-dark);
}

/* ==============================================
   ABOUT STRIP
   ============================================== */
#about { background: var(--navy); overflow: hidden; position: relative; }
#about::before {
  content: '';
  position: absolute;
  right: -100px; top: -100px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242,111,33,.15) 0%, transparent 70%);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-content .section-title { color: var(--white); }
.about-content .section-subtitle { color: rgba(255,255,255,.65); max-width: 100%; }

.about-list {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: .95rem;
  color: rgba(255,255,255,.75);
  line-height: 1.6;
}
.about-list li::before {
  content: '';
  width: 20px; height: 20px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(242,111,33,.25);
  border: 1.5px solid var(--orange);
  margin-top: 2px;
  position: relative;
}
.about-list li::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23F26F21'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px;
}

.about-image-block {
  position: relative;
}
.about-img-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--navy-mid);
}
.about-img-main img { width: 100%; height: 100%; object-fit: cover; }

.about-card-float {
  position: absolute;
  bottom: -24px; right: -24px;
  background: var(--orange);
  color: var(--white);
  padding: 20px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}
.about-card-float .big { font-size: 2rem; font-weight: 800; line-height: 1; }
.about-card-float .small { font-size: .78rem; opacity: .85; margin-top: 4px; text-transform: uppercase; letter-spacing: .06em; }

/* ==============================================
   STATS COUNTER
   ============================================== */
#stats { background: var(--bg-light); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.stat-item {
  background: var(--white);
  padding: 40px 28px;
  text-align: center;
}
.stat-item .number {
  font-family: 'Poppins', sans-serif;
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--navy);
  line-height: 1;
}
.stat-item .number span { color: var(--orange); }
.stat-item .label {
  font-size: .85rem;
  color: var(--text-mid);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-top: 8px;
  font-weight: 600;
}

/* ==============================================
   PROCESS / HOW WE WORK
   ============================================== */
#process {}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  position: relative;
  margin-top: 56px;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 36px; left: 36px; right: 36px;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), var(--navy));
  z-index: 0;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Poppins', sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 20px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.process-step:hover .step-number {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--white);
  box-shadow: 0 6px 24px rgba(242,111,33,.35);
}
.process-step h4 { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.process-step p { font-size: .85rem; color: var(--text-mid); line-height: 1.55; }

/* ==============================================
   CONTACT STRIP
   ============================================== */
#contact-strip {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  position: relative;
  overflow: hidden;
}
#contact-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 30px,
    rgba(255,255,255,.02) 30px,
    rgba(255,255,255,.02) 31px
  );
}

.contact-strip-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.contact-strip-text h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--white);
  font-weight: 800;
  line-height: 1.2;
}
.contact-strip-text p { color: rgba(255,255,255,.65); margin-top: 8px; font-size: 1rem; }

.contact-strip-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ==============================================
   FOOTER
   ============================================== */
#footer {
  background: #070f1d;
  color: rgba(255,255,255,.65);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: .875rem; line-height: 1.7; color: rgba(255,255,255,.5); max-width: 300px; }

.footer-col h4 {
  font-size: .85rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: .875rem;
  color: rgba(255,255,255,.5);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-col a:hover { color: var(--orange); }
.footer-col a svg { width: 14px; height: 14px; flex-shrink: 0; }

.footer-contact-list { display: flex; flex-direction: column; gap: 14px; }
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .875rem;
}
.footer-contact-item svg { width: 16px; height: 16px; color: var(--orange); flex-shrink: 0; margin-top: 2px; }

.social-links { display: flex; gap: 10px; margin-top: 20px; }
.social-link {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.social-link:hover { background: var(--orange); border-color: var(--orange); }
.social-link svg { width: 16px; height: 16px; color: rgba(255,255,255,.7); }
.social-link:hover svg { color: var(--white); }

.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .8rem;
  color: rgba(255,255,255,.3);
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom a { color: rgba(255,255,255,.4); }
.footer-bottom a:hover { color: var(--orange); }

/* ==============================================
   PRODUCTS PAGE (urunler.html)
   ============================================== */
.page-hero {
  background: linear-gradient(135deg, #0a1e3d 0%, #0f2748 60%, #1a3a5c 100%);
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 40px,
    rgba(255,255,255,.02) 40px, rgba(255,255,255,.02) 41px
  ),
  repeating-linear-gradient(
    90deg, transparent, transparent 40px,
    rgba(255,255,255,.02) 40px, rgba(255,255,255,.02) 41px
  );
}
.page-hero-inner { position: relative; width: 100%; }
.page-hero h1 { color: var(--white); font-size: clamp(2rem, 4vw, 3rem); }
.page-hero p { color: rgba(255,255,255,.65); margin-top: 12px; font-size: 1.05rem; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: rgba(255,255,255,.45);
  margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255,255,255,.55); }
.breadcrumb a:hover { color: var(--orange); }
.breadcrumb svg { width: 12px; height: 12px; }

/* Sidebar filter */
.products-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: start;
}

.filter-sidebar {
  position: sticky;
  top: 88px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.filter-sidebar h3 {
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--white);
  background: var(--navy);
  padding: 16px 20px;
}
.filter-list { padding: 12px; }
.filter-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  font-size: .9rem;
  color: var(--text-mid);
  font-weight: 500;
}
.filter-item:hover,
.filter-item.active {
  background: var(--bg-light);
  color: var(--navy);
}
.filter-item.active { color: var(--orange); font-weight: 600; }
.filter-count {
  font-size: .75rem;
  background: var(--bg-light);
  padding: 2px 8px;
  border-radius: 50px;
  color: var(--text-light);
  font-weight: 600;
}
.filter-item.active .filter-count { background: rgba(242,111,33,.1); color: var(--orange); }

/* Product group heading */
.product-group { margin-bottom: 56px; }
.product-group-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border);
}
.product-group-title span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  background: var(--orange);
  color: var(--white);
  border-radius: 6px;
  font-size: .85rem;
}

/* ==============================================
   CONTACT PAGE
   ============================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}

.contact-info-card {
  background: var(--navy);
  border-radius: var(--radius-md);
  padding: 40px 36px;
  color: var(--white);
}
.contact-info-card h3 { color: var(--white); margin-bottom: 8px; }
.contact-info-card > p { color: rgba(255,255,255,.6); margin-bottom: 32px; font-size: .95rem; }

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.contact-detail:last-child { border-bottom: none; }
.contact-detail-icon {
  width: 42px; height: 42px;
  background: rgba(242,111,33,.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-detail-icon svg { width: 20px; height: 20px; color: var(--orange); }
.contact-detail-text .label {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: rgba(255,255,255,.4);
  font-weight: 600;
  margin-bottom: 4px;
}
.contact-detail-text .value { font-size: .95rem; font-weight: 500; line-height: 1.5; }
.contact-detail-text a { color: var(--white); }
.contact-detail-text a:hover { color: var(--orange); }

.contact-form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 40px 36px;
}
.contact-form-card h3 { margin-bottom: 8px; }
.contact-form-card > p { color: var(--text-mid); margin-bottom: 28px; font-size: .95rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-family: inherit;
  color: var(--text-dark);
  background: var(--white);
  transition: border-color var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(242,111,33,.12);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.map-wrap {
  margin-top: 48px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  height: 320px;
}
.map-wrap iframe {
  width: 100%; height: 100%;
  border: none;
  filter: grayscale(.15);
}

/* ==============================================
   UTILITIES & ANIMATIONS
   ============================================== */
.text-center { text-align: center; }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }

.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }
.delay-4 { transition-delay: .4s; }

/* Back to top */
#back-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--orange);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  z-index: 800;
  box-shadow: 0 4px 16px rgba(242,111,33,.4);
  border: none;
}
#back-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
#back-top:hover { background: var(--orange-dk); transform: translateY(-2px); }
#back-top svg { width: 20px; height: 20px; }

/* ==============================================
   RESPONSIVE
   ============================================== */
/* ==============================================
   HERO — 2 COLUMN LAYOUT
   ============================================== */
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  align-items: center;
  gap: 40px;
  position: relative;
  z-index: 2;
}

/* ==============================================
   HERO VİSUAL — ÜRÜN KARTLARI YIĞINI (5 kart)
   ============================================== */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  position: relative;
  padding: 16px 0 48px;
}

.card-stack {
  position: relative;
  /* 5 kart × 13px offset = 52px → genişlik: 250 + 52 = 302px */
  width: 310px;
  height: 360px;
}

/* ---- Yüzen partiküller (normal hal) ---- */
.stack-particle {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--orange);
  opacity: .55;
  pointer-events: none;
  transition: opacity .4s;
  animation: floatParticle 4s ease-in-out infinite;
  box-shadow: 0 0 6px rgba(242,111,33,.4);
}
/* Her noktanın boyutu farklı */
.sp-1 { width:7px; height:7px; animation-duration:3.8s; animation-delay:0s; }
.sp-2 { width:5px; height:5px; animation-duration:4.5s; animation-delay:.9s; }
.sp-3 { width:9px; height:9px; animation-duration:3.4s; animation-delay:1.4s; }
.sp-4 { width:5px; height:5px; animation-duration:5.2s; animation-delay:.3s; }
.sp-5 { width:6px; height:6px; animation-duration:4.1s; animation-delay:2s; }
.sp-6 { width:4px; height:4px; animation-duration:3.6s; animation-delay:1s; }

@keyframes floatParticle {
  0%, 100% { transform: translateY(0)     scale(1);    opacity: .5; }
  50%       { transform: translateY(-16px) scale(1.3);  opacity: .9; }
}

/* Hover'da partiküller solar, orbit noktaları belirir */
.hero-visual:hover .stack-particle { opacity: 0; animation-play-state: paused; }

/* ---- Orbit partikülleri (hover halinde görünür) ---- */
.orbit-wrap {
  position: absolute;
  top: 150px; left: 150px;
  width: 0; height: 0;
  transform-origin: 0 0;
  animation: orbitSpin var(--spd, 16s) linear infinite var(--d, 0s);
  z-index: 20;
  pointer-events: none;
  opacity: 0;
  transition: opacity .4s;
}
/* Hero-visual hover'da orbit görünür */
.hero-visual:hover .orbit-wrap { opacity: 1; }

@keyframes orbitSpin { to { transform: rotate(360deg); } }

.p-dot {
  position: absolute;
  top: 0; left: 0;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 8px rgba(242,111,33,.55);
}

/* hover'da 5 sn/tur, 60° aralıklı dağılım */
.hero-visual:hover .ow-1 { animation: orbitSpin  5s    0s linear infinite; }
.hero-visual:hover .ow-2 { animation: orbitSpin  5s -.83s linear infinite; }
.hero-visual:hover .ow-3 { animation: orbitSpin  5s -1.67s linear infinite; }
.hero-visual:hover .ow-4 { animation: orbitSpin  5s -2.5s  linear infinite; }
.hero-visual:hover .ow-5 { animation: orbitSpin  5s -3.33s linear infinite; }
.hero-visual:hover .ow-6 { animation: orbitSpin  5s -4.17s linear infinite; }

/* Her kart */
.stack-card {
  position: absolute;
  width: 248px;
  background: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 14px 44px rgba(0,0,0,.32);
  transition: transform .35s ease, box-shadow .35s ease, z-index 0s;
  cursor: default;
}
.stack-card:hover {
  transform: translateY(-12px) rotate(0deg) !important;
  box-shadow: 0 28px 70px rgba(0,0,0,.4);
  z-index: 20 !important;
}

/* 5 KART — kademeli diyagonal dizi, arkadan öne */
.card-5 { top:0;  left:0;  transform:rotate(-14deg) translate(-6px,6px);  z-index:1; animation:floatC5 7s ease-in-out infinite 0s; }
.card-4 { top:13px; left:13px; transform:rotate(-7deg);  z-index:2; animation:floatC4 7s ease-in-out infinite .6s; }
.card-3 { top:26px; left:26px; transform:rotate(-1deg);  z-index:3; animation:floatC3 7s ease-in-out infinite 1.2s; }
.card-2 { top:39px; left:39px; transform:rotate(6deg);   z-index:4; animation:floatC2 7s ease-in-out infinite 1.8s; }
.card-1 { top:52px; left:52px; transform:rotate(13deg);  z-index:5; animation:floatC1 7s ease-in-out infinite 2.4s; }

@keyframes floatC1 { 0%,100%{transform:rotate(13deg)  translateY(0)}  50%{transform:rotate(13deg)  translateY(-13px)} }
@keyframes floatC2 { 0%,100%{transform:rotate(6deg)   translateY(0)}  50%{transform:rotate(6deg)   translateY(-10px)} }
@keyframes floatC3 { 0%,100%{transform:rotate(-1deg)  translateY(0)}  50%{transform:rotate(-1deg)  translateY(-8px)} }
@keyframes floatC4 { 0%,100%{transform:rotate(-7deg)  translateY(0)}  50%{transform:rotate(-7deg)  translateY(-6px)} }
@keyframes floatC5 { 0%,100%{transform:rotate(-14deg) translate(-6px,6px)} 50%{transform:rotate(-14deg) translate(-6px,-6px)} }

/* Kart içeriği */
.stack-card-img {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--bg-light);
}
.stack-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.stack-card:hover .stack-card-img img { transform: scale(1.06); }

.stack-card-body {
  padding: 12px 15px 14px;
  border-top: 1px solid var(--border);
}
.stack-card-code {
  display: block;
  font-size: .66rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 3px;
}
.stack-card-name {
  display: block;
  font-size: .88rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.25;
}

/* Zemin gölgesi */
.card-stack-shadow {
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 220px; height: 20px;
  background: radial-gradient(ellipse, rgba(0,0,0,.3) 0%, transparent 70%);
  border-radius: 50%;
}

/* ==============================================
   ÜRÜN GRİDİ — ANASAYFA (3×2)
   ============================================== */
.products-grid-home {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ==============================================
   RESPONSIVE UPDATES
   ============================================== */
@media (max-width: 1024px) {
  /* nav elementini ve cta'yı tamamen gizle; header-inner gap'i sıfırla
     böylece logo + hamburger space-between ile karşı köşelere oturur */
  nav, .nav-cta { display: none; }
  .header-inner { gap: 0; }
  /* Hero: padding'i sadece sabit header yüksekliği kadar tut, gerisi
     align-items:center ile tam ortalar */
  #hero       { padding: 88px 0 48px; }
  .page-hero  { padding: 88px 0 48px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-image-block { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .products-layout { grid-template-columns: 1fr; }
  .filter-sidebar { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid-home { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .process-steps::before { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .contact-strip-inner { flex-direction: column; text-align: center; }
  .contact-strip-actions { justify-content: center; }
  .features-grid { grid-template-columns: 1fr; }
  .products-grid-home { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  /* Çok dar ekranlarda logo alt yazısını gizle */
  .logo-text .sub { display: none; }

  /* Hero — iPhone SE (375×667) ve benzeri küçük ekranlar için sıkıştır
     align-items: center korunur (flex-start kullanma, içerik ortada kalmalı) */
  #hero { padding: 80px 0 32px; }
  .hero-badge { font-size: .72rem; padding: 5px 11px; margin-bottom: 14px; }
  .hero-title { font-size: clamp(1.65rem, 7vw, 2rem); margin-bottom: 12px; }
  .hero-text  { font-size: .88rem; margin-bottom: 18px; }
  .hero-actions { flex-direction: column; }

  .stats-grid { grid-template-columns: 1fr 1fr; }
  .products-grid { grid-template-columns: 1fr; }
}