/*
 * vankompozit.com - Modern Kurumsal Tasarım Sistemi (Revize - Kırmızı Tema)
 * Yazar: Antigravity - Senior UI/UX Designer & Frontend Developer
 * Açıklama: Logo renkleriyle uyumlu crimson kırmızı (#C21B2F) vurgulu tasarım sistemi.
 */

/* Google Fonts - Outfit ve Inter (HTML içinden paralel yüklenmektedir) */

/* CSS Tasarım Değişkenleri */
:root {
  --primary-color: #0F172A;       /* Slate 900 */
  --primary-light: #1E293B;       /* Slate 800 */
  --accent-color: #C21B2F;        /* Crimson Red (Logo Vurgusu) */
  --accent-hover: #A01425;        /* Koyu Crimson */
  --accent-glow: rgba(194, 27, 47, 0.4);
  --accent-light: rgba(194, 27, 47, 0.08);
  --text-dark: #0F172A;
  --text-muted: #475569;          /* Slate 600 */
  --bg-light: #F8FAFC;            /* Slate 50 */
  --bg-white: #FFFFFF;
  --border-color: #E2E8F0;        /* Slate 200 */
  --border-focus: #F87171;        /* Light Crimson / Rose 400 */
  
  /* Fontlar */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Gölgeler (Yumuşak & Derin Gölgeler) */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 20px 40px -10px rgba(15, 23, 42, 0.08), 0 10px 15px -8px rgba(15, 23, 42, 0.08);
  --shadow-glass: 0 8px 32px 0 rgba(15, 23, 42, 0.06);

  /* Köşeler */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Geçiş Eğimleri ve Süreleri (Daha Dinamik) */
  --transition-fast: 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-normal: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-slow: 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);

  --container-width: 1240px;
}

/* Temel Ayarlar */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.625;
  color: var(--text-muted);
  background-color: var(--bg-light);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-dark);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: 3.25rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-sm);
  transition: var(--transition-normal);
}

svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Klavye Focus Efekti */
*:focus-visible {
  outline: 3px solid var(--border-focus);
  outline-offset: 3px;
}

/* Grid/Flex Container */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Modern Sticky Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition-normal);
}

.site-header.scrolled {
  background-color: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-glass);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  padding: 0.25rem 0;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 96px;
}

.site-header.scrolled .header-container {
  height: 80px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--bg-white);
  letter-spacing: -0.03em;
}

.logo img {
  display: block;
  height: 90px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 1px rgba(255, 255, 255, 0.95)) drop-shadow(0 0 4px rgba(255, 255, 255, 0.45));
}

.site-header.scrolled .logo img {
  height: 54px;
}

#footerLogoImg {
  height: 64px;
}

/* Navigasyon */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 2.25rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.75);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background-color: var(--accent-color);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--bg-white);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 16px;
}

/* Header Sağ Butonlar */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Yenilikçi Buton Stilleri */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-normal);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-color), #EF4444);
  color: var(--bg-white);
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--bg-white);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
}

.btn-outline {
  border: 1.5px solid var(--accent-color);
  color: var(--accent-color);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: var(--accent-color);
  color: var(--bg-white);
  transform: translateY(-3px);
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: var(--bg-white);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.25);
}

.btn-whatsapp:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35);
}

.btn-call {
  background-color: transparent;
  color: var(--bg-white);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
}

.btn-call:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--bg-white);
  transform: translateY(-3px);
}

/* Mobil Hamburger Menü */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--bg-white);
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-toggle svg {
  width: 28px;
  height: 28px;
}

/* Dinamik Hero Alanı */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--primary-color);
  padding-top: 100px;
  overflow: hidden;
  color: var(--bg-white);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 80% 20%, rgba(194, 27, 47, 0.15) 0%, rgba(15, 23, 42, 0) 50%),
              linear-gradient(135deg, rgba(15, 23, 42, 0.96) 0%, rgba(15, 23, 42, 0.85) 100%);
  z-index: 1;
}

.hero-bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.08;
  background-image: radial-gradient(var(--bg-white) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(194, 27, 47, 0.12);
  color: #F87171;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 2rem;
  border: 1px solid rgba(194, 27, 47, 0.25);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-title {
  font-size: 3.75rem;
  line-height: 1.1;
  margin-bottom: 1.75rem;
  font-weight: 900;
  background: linear-gradient(to right, #FFFFFF, #CBD5E1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title span {
  background: linear-gradient(to right, #F87171, #C21B2F);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.1rem;
  color: #94A3B8;
  margin-bottom: 2.75rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-graphic {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-wrapper {
  position: relative;
  width: 100%;
  max-width: 440px;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-xl);
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.hero-image-wrapper:hover img {
  transform: scale(1.05);
}

/* Bölümler */
.section {
  padding: 8rem 0;
  position: relative;
}

.section-bg-white {
  background-color: var(--bg-white);
}

.section-bg-light {
  background-color: var(--bg-light);
}

.section-bg-dark {
  background-color: var(--primary-color);
  color: var(--bg-white);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 5.5rem auto;
}

.section-subtitle {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-color);
  margin-bottom: 1rem;
  display: block;
}

.section-bg-dark .section-subtitle {
  color: #F87171;
}

.section-title {
  font-size: 2.5rem;
  color: var(--text-dark);
  margin-bottom: 1.25rem;
  font-weight: 800;
}

.section-bg-dark .section-title {
  color: var(--bg-white);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

.section-bg-dark .section-desc {
  color: #94A3B8;
}

/* Hakkımızda Özeti */
.about-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-summary-media {
  position: relative;
}

.about-img-box {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  aspect-ratio: 4/3;
  background-color: #E2E8F0;
}

.about-img-box img {
  width: 100%;
  height: 100%;
}

.about-badge-card {
  position: absolute;
  bottom: -2rem;
  right: -1.5rem;
  background: var(--bg-white);
  padding: 1.75rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-width: 170px;
}

.about-badge-years {
  font-family: var(--font-heading);
  font-size: 3.25rem;
  font-weight: 900;
  color: var(--accent-color);
  line-height: 1;
}

.about-badge-text {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-top: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about-summary-content .section-header {
  text-align: left;
  margin-left: 0;
  margin-bottom: 2rem;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
}

.about-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.about-feature-icon {
  color: var(--accent-color);
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.about-feature-text h4 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.about-feature-text p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Neden Biz Kartları */
.why-us-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.why-card {
  background-color: var(--bg-white);
  padding: 3.5rem 2.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: transparent;
  transition: var(--transition-fast);
}

.why-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(194, 27, 47, 0.15);
}

.why-card:hover::before {
  background-color: var(--accent-color);
}

.why-icon {
  width: 58px;
  height: 58px;
  background-color: var(--accent-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  margin-bottom: 2.25rem;
  transition: var(--transition-normal);
}

.why-card:hover .why-icon {
  background-color: var(--accent-color);
  color: var(--bg-white);
  box-shadow: 0 4px 14px var(--accent-glow);
}

.why-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.why-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  flex-grow: 1;
}

/* Ürün & Galeri Kartları */
.products-grid, .project-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.product-card, .project-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.product-card:hover, .project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(194, 27, 47, 0.18);
}

.product-img-box, .project-img-box {
  background-color: #E2E8F0;
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}

.product-img-box img, .project-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.product-card:hover .product-img-box img, .project-card:hover .project-img-box img {
  transform: scale(1.06);
}

.product-badge, .project-badge {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background-color: var(--primary-color);
  color: var(--bg-white);
  padding: 0.4rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 800;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-sm);
}

.product-body {
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-body h3 {
  font-size: 1.35rem;
  margin-bottom: 0.85rem;
}

.product-body p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.product-specs {
  background-color: var(--bg-light);
  padding: 1.15rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
}

.product-spec-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.product-spec-item:last-child {
  border-bottom: none;
}

.product-spec-label {
  font-weight: 700;
  color: var(--text-dark);
}

.product-spec-value {
  color: var(--text-muted);
}

.product-footer {
  margin-top: auto;
}

/* İstatistikler */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 3.75rem;
  font-weight: 900;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 0.75rem;
  letter-spacing: -0.04em;
}

.section-bg-dark .stat-number {
  color: #F87171;
}

.stat-label {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
}

.section-bg-dark .stat-label {
  color: var(--bg-white);
}

.stat-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

.section-bg-dark .stat-desc {
  color: #94A3B8;
}

/* CTA Alanı */
.cta-section {
  padding: 5.5rem 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  color: var(--bg-white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.cta-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 3rem;
  align-items: center;
}

.cta-content h2 {
  font-size: 2.25rem;
  color: var(--bg-white);
  margin-bottom: 0.75rem;
}

.cta-content p {
  color: #94A3B8;
  font-size: 1.05rem;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  background-color: var(--primary-color);
  color: #94A3B8;
  padding-top: 6rem;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 4rem;
  margin-bottom: 5rem;
}

.footer-col h3 {
  color: var(--bg-white);
  font-size: 1.15rem;
  margin-bottom: 1.75rem;
  font-family: var(--font-heading);
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 3px;
  background-color: var(--accent-color);
  border-radius: var(--radius-full);
}

.footer-about p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 1.25rem;
  margin-bottom: 1.75rem;
}

.footer-socials {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--bg-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.social-link:hover {
  background-color: var(--accent-color);
  transform: translateY(-3px);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.social-link svg {
  width: 18px;
  height: 18px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.85rem;
}

.footer-links a {
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--bg-white);
  padding-left: 6px;
}

.footer-contact-info {
  list-style: none;
}

.footer-contact-info li {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin-bottom: 1.15rem;
  font-size: 0.9sm;
}

.footer-contact-info svg {
  width: 20px;
  height: 20px;
  color: var(--accent-color);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding: 2.25rem 0;
  text-align: center;
  font-size: 0.85rem;
}

/* Yukarı Çık Butonu */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background-color: var(--accent-color);
  color: var(--bg-white);
  border: none;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition-normal);
}

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

.scroll-to-top:hover {
  background-color: var(--accent-hover);
  transform: translateY(-4px);
  box-shadow: 0 6px 18px var(--accent-glow);
}

/* Animasyon Sınıfları */
.animate-fade, .animate-slide, .animate-zoom {
  opacity: 1;
  transform: none;
  /* Kaydırmalı yükleme efekti kaldırıldı (statik anında yükleme) */
}

.animated {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Sayfa Bannerları */
.page-banner {
  background-color: var(--primary-color);
  padding: 10.5rem 0 5.5rem 0;
  position: relative;
  overflow: hidden;
  color: var(--bg-white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.page-banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 80% 20%, rgba(194, 27, 47, 0.12) 0%, rgba(15, 23, 42, 0) 50%),
              linear-gradient(to right, rgba(15, 23, 42, 0.96) 0%, rgba(15, 23, 42, 0.75) 100%);
  z-index: 1;
}

.page-banner .container {
  position: relative;
  z-index: 2;
}

.page-banner h1 {
  font-size: 3rem;
  margin-bottom: 1.15rem;
  background: linear-gradient(to right, #FFFFFF, #E2E8F0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.breadcrumb {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: #94A3B8;
}

.breadcrumb li:not(:last-child)::after {
  content: '/';
  margin-left: 0.5rem;
  color: #64748B;
}

.breadcrumb a {
  color: #F87171;
}

.breadcrumb a:hover {
  color: var(--bg-white);
  text-decoration: underline;
}

.breadcrumb li.active {
  color: #94A3B8;
  pointer-events: none;
}

/* Kategori Filtre Sekmeleri */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 0.65rem;
  margin-bottom: 4.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background-color: var(--bg-white);
  border: 1px solid var(--border-color);
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-normal);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: var(--bg-white);
  box-shadow: 0 4px 14px var(--accent-glow);
}

/* Kesim Sayfası - İş Akışı */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 3.5rem;
}

.step-card {
  text-align: center;
  background-color: var(--bg-white);
  padding: 3rem 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  position: relative;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--accent-color);
  color: var(--bg-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 900;
  margin: 0 auto 1.75rem auto;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.step-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.85rem;
}

.step-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* İletişim Formu */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
}

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact-detail-item {
  display: flex;
  gap: 1.15rem;
}

.contact-detail-icon {
  width: 52px;
  height: 52px;
  background-color: var(--accent-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  flex-shrink: 0;
  transition: var(--transition-normal);
}

.contact-detail-item:hover .contact-detail-icon {
  background-color: var(--accent-color);
  color: var(--bg-white);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.contact-detail-text h4 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.contact-detail-text p, .contact-detail-text a {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.contact-form-card {
  background-color: var(--bg-white);
  padding: 4rem 3.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
}

.contact-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group-full {
  grid-column: span 2;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-dark);
}

.form-input, .form-textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.9rem 1.25rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-light);
  color: var(--text-dark);
  transition: var(--transition-normal);
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  background-color: var(--bg-white);
  box-shadow: 0 0 0 4px rgba(194, 27, 47, 0.12);
}

.form-textarea {
  min-height: 160px;
  resize: vertical;
}

.form-error {
  font-size: 0.75rem;
  color: #DC2626;
  margin-top: 0.25rem;
  display: none;
}

.map-wrapper {
  margin-top: 5.5rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  height: 480px;
  background-color: #E2E8F0;
}

/* Hakkımızda Ekstra Stiller */
.history-section-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 5rem;
  align-items: center;
}

.history-content p {
  margin-bottom: 1.75rem;
  font-size: 1.05rem;
  line-height: 1.8;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.value-card {
  background-color: var(--bg-white);
  padding: 3rem 2.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: var(--transition-normal);
}

.value-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(194, 27, 47, 0.15);
}

.value-icon {
  width: 52px;
  height: 52px;
  background-color: var(--accent-light);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  margin: 0 auto 1.75rem auto;
}

.value-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.85rem;
}

/* Duyarlılık (Media Queries) */
@media (max-width: 1200px) {
  h1 { font-size: 2.75rem; }
  h2 { font-size: 2rem; }
  .hero-title { font-size: 3.25rem; }
}

@media (max-width: 1024px) {
  .nav-list {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
    z-index: 1001;
  }
  
  .main-nav.mobile-active .nav-list {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
    padding: 6.5rem 2.25rem 2.25rem 2.25rem;
    z-index: 1000;
    gap: 1.75rem;
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    padding-bottom: 4.5rem;
  }
  
  .hero-content { margin: 0 auto; }
  .hero-buttons { justify-content: center; }
  .hero-graphic { display: none; }

  .about-summary-grid, .history-section-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
  
  .about-summary-media {
    max-width: 480px;
    margin: 0 auto;
  }

  .why-us-grid, .products-grid, .project-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
}

@media (max-width: 768px) {
  .header-actions {
    display: none;
  }
  
  .why-us-grid, .products-grid, .project-gallery-grid, .values-grid {
    grid-template-columns: 1fr;
  }
  
  .steps-grid, .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cta-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .cta-actions { justify-content: center; }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  .hero-title { font-size: 2.35rem; }
  .stats-grid, .steps-grid { grid-template-columns: 1fr; }
  .contact-form-card { padding: 2.25rem 1.5rem; }
  .contact-form-grid { grid-template-columns: 1fr; }
  .form-group-full { grid-column: span 1; }
}

/* Color Chart (Renk Kartelası) */
.color-chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.color-card {
  background-color: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.color-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(194, 27, 47, 0.15);
}

.color-swatch-box {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.04);
}

/* Wood effect overlays / textures */
.color-swatch-box.wood-effect::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.03) 0px,
    rgba(255, 255, 255, 0.03) 1px,
    transparent 1px,
    transparent 10px
  ), repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.04) 0px,
    rgba(0, 0, 0, 0.04) 2px,
    transparent 2px,
    transparent 12px
  );
  opacity: 0.8;
}

/* Concrete and Stone textures */
.color-swatch-box.stone-effect::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(rgba(0,0,0,0.06) 1px, transparent 0),
                    radial-gradient(rgba(0,0,0,0.08) 1px, transparent 0);
  background-size: 8px 8px;
  background-position: 0 0, 4px 4px;
  opacity: 0.7;
}

/* Metallic shininess effect overlay */
.color-swatch-box.metallic-effect::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-25deg);
  transition: none;
}

.color-card:hover .color-swatch-box.metallic-effect::after {
  animation: shine 1.2s ease-in-out;
}

@keyframes shine {
  100% {
    left: 200%;
  }
}

.color-card-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.color-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.color-code-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-color);
  background-color: var(--accent-light);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  font-family: monospace;
}

.color-name-tr {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
}

.color-name-en {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Mobil için Kartela 2 Sütun Düzeni */
@media (max-width: 576px) {
  .color-chart-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.75rem !important;
    margin-top: 1.5rem !important;
  }
  
  .color-card {
    padding: 0.6rem !important;
    border-radius: var(--radius-sm) !important;
    gap: 0.5rem !important;
  }
  
  .color-code-badge {
    font-size: 0.7rem !important;
    padding: 0.1rem 0.35rem !important;
  }
  
  .color-name-tr {
    font-size: 0.8rem !important;
  }
  
  .color-name-en {
    font-size: 0.65rem !important;
  }
}