/* ============================================
   KAYABAŞI MASA SANDALYE — STYLE.CSS
   Palette: Black #1a1a1a | Gold #C9A84C | Brown #6B3F23 | Cream #F8F4EE
============================================ */

:root {
  --black:      #1a1a1a;
  --gold:       #C9A84C;
  --gold-dark:  #a8893a;
  --brown:      #6B3F23;
  --cream:      #F9F7F4;
  --cream-dark: #F0EDE8;
  --white:      #ffffff;
  --gray:       #888;
  --text:       #2a2a2a;
  --radius:     10px;
  --shadow:     0 8px 32px rgba(0,0,0,0.08);
  --trans:      0.3s ease;
  /* Dark mode surfaces */
  --dm-bg:      #111111;
  --dm-surface: #1a1a1a;
  --dm-card:    #222222;
  --dm-border:  rgba(201,168,76,0.14);
  --dm-text:    #d4cfc8;
  --dm-muted:   #888;
}

/* ============================================
   DARK MODE
============================================ */
[data-dark] body         { background: var(--dm-bg); color: var(--dm-text); }
[data-dark] h1,[data-dark] h2,[data-dark] h3,
[data-dark] h4,[data-dark] h5 { color: #e8e3db; }
[data-dark] #header      { background: rgba(14,14,14,0.98) !important; box-shadow: 0 2px 20px rgba(0,0,0,0.5); }
[data-dark] .nav-desktop a { color: var(--dm-text); }
[data-dark] .logo-brand-main { color: #e8e3db; }
[data-dark] .logo-brand-sub  { color: var(--gold); }
[data-dark] #about,
[data-dark] .products-section,
[data-dark] .featured-section,
[data-dark] .viewer3d-section,
[data-dark] .references-section,
[data-dark] .faq-section,
[data-dark] .contact-section { background: var(--dm-bg); }
[data-dark] .why-section,
[data-dark] .material-section { background: var(--dm-surface); }
[data-dark] .calculator-section { background: var(--dm-bg); }
[data-dark] .calc-form          { background: var(--dm-surface); border-color: var(--dm-border); }
[data-dark] .category-card,
[data-dark] .product-card,
[data-dark] .why-card           { background: var(--dm-card); box-shadow: 0 4px 20px rgba(0,0,0,0.35); }
[data-dark] .cat-info h3,
[data-dark] .product-info h4,
[data-dark] .why-card h4        { color: #e8e3db; }
[data-dark] .cat-info p,
[data-dark] .product-info p,
[data-dark] .why-card p         { color: var(--dm-muted); }
[data-dark] .mat-card           { background: var(--dm-card); border-color: var(--dm-border); }
[data-dark] .mat-card.active    { border-color: var(--gold); }
[data-dark] .mat-info h5,
[data-dark] .mat-preview-body h3 { color: #e8e3db; }
[data-dark] .material-preview  { background: var(--dm-card); }
[data-dark] .mat-preview-body  { background: var(--dm-card); }
[data-dark] .mat-bars           { background: transparent; }
[data-dark] .mat-bar-track      { background: rgba(255,255,255,0.08); }
[data-dark] .viewer3d-wrap      { background: #1a1510; border-color: var(--dm-border); }
[data-dark] .viewer3d-controls h4 { color: #e8e3db; }
[data-dark] .color3d-btn        { background: var(--dm-card); color: var(--dm-text); }
[data-dark] .color3d-btn.active { background: var(--dm-surface); }
[data-dark] .viewer3d-info      { background: var(--dm-surface); border-color: var(--dm-border); }
[data-dark] .v3d-info-row       { color: var(--dm-text); }
[data-dark] .faq-item           { background: var(--dm-card); border-color: var(--dm-border); }
[data-dark] .faq-q              { color: #e8e3db; }
[data-dark] .faq-a p            { color: var(--dm-muted); }
[data-dark] .about-text p       { color: var(--dm-text); }
[data-dark] .about-list li      { color: var(--dm-text); }
[data-dark] .contact-info p     { color: var(--dm-text); }
[data-dark] .contact-list li    { color: var(--dm-text); }
[data-dark] .contact-card { background: var(--dm-card); }
[data-dark] .contact-card h3 { color: #e8e3db; }
[data-dark] .contact-card p  { color: var(--dm-muted); }
[data-dark] .section-desc       { color: var(--dm-muted); }
[data-dark] .calc-tips li       { color: var(--dm-text); }
[data-dark] .calc-group label   { color: var(--dm-text); }
[data-dark] .calc-group input   { background: var(--dm-card); color: #e8e3db; border-color: var(--dm-border); }
[data-dark] .counter button     { background: var(--dm-card); color: #e8e3db; }
[data-dark] .counter span       { color: #e8e3db; }
[data-dark] .nav-mobile         { background: #111; border-top-color: var(--dm-border); }
[data-dark] .nav-mobile a       { color: var(--dm-text); border-bottom-color: var(--dm-border); }
[data-dark] #scrollProgress     { background: var(--gold); }

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  font-family: 'Playfair Display', serif;
  line-height: 1.2;
}

img { display: block; width: 100%; object-fit: cover; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- BUTTONS ---- */
.btn-primary {
  display: inline-block;
  background: var(--gold);
  color: var(--black);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 14px 32px;
  border-radius: 4px;
  text-decoration: none;
  border: 2px solid var(--gold);
  transition: var(--trans);
  letter-spacing: 0.5px;
}
.btn-primary:hover {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201,168,76,0.35);
}
.btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--white);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 14px 32px;
  border-radius: 4px;
  text-decoration: none;
  border: 2px solid rgba(255,255,255,0.7);
  transition: var(--trans);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
}
.btn-outline-sm {
  display: inline-block;
  background: transparent;
  color: var(--white);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 10px 24px;
  border-radius: 4px;
  text-decoration: none;
  border: 2px solid var(--white);
  transition: var(--trans);
}
.btn-outline-sm:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--black);
}
.full-width { width: 100%; text-align: center; }

/* ---- SECTION COMMON ---- */
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  color: var(--black);
  margin-bottom: 12px;
}
.section-head.light h2 { color: var(--white); }
.section-head.light .section-desc { color: rgba(255,255,255,0.7); }
.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}
.section-desc {
  color: var(--gray);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================================
   HEADER
============================================ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201,168,76,0.25);
  transition: var(--trans);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo img {
  height: 82px;
  width: auto;
  object-fit: contain;
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo-brand {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  border-left: 2px solid var(--gold);
  padding-left: 14px;
}
.logo-brand-main {
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--black);
  letter-spacing: 3px;
  text-transform: uppercase;
  line-height: 1;
}
.logo-brand-dot {
  font-size: 1.2rem;
  color: var(--gold);
  font-weight: 300;
  line-height: 1;
  margin-top: -2px;
}
.logo-brand-sub {
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--gold-dark);
  letter-spacing: 2px;
  line-height: 1;
}
.logo-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
  text-decoration: none;
  gap: 3px;
}
.logo-text-main {
  font-family: 'Playfair Display', serif;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--black);
  letter-spacing: 3px;
}
.logo-text-sub {
  font-family: 'Playfair Display', serif;
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 2px;
  font-style: italic;
}
.footer-logo-text .logo-text-main { color: var(--white); }
.footer-logo-text .logo-text-sub  { color: var(--gold); }
.nav-desktop {
  display: flex;
  gap: 36px;
}
.nav-desktop a {
  color: rgba(26,26,26,0.75);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.4px;
  transition: var(--trans);
  position: relative;
  padding-bottom: 4px;
}
.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--gold);
  transition: var(--trans);
}
.nav-desktop a:hover { color: var(--gold); }
.nav-desktop a:hover::after { width: 100%; }
.nav-desktop .nav-3d {
  background: var(--gold);
  color: var(--black) !important;
  padding: 7px 16px 7px !important;
  border-radius: 6px;
  font-weight: 600;
}
.nav-desktop .nav-3d i { margin-right: 5px; }
.nav-desktop .nav-3d::after { display: none; }
.nav-desktop .nav-3d:hover { background: var(--brown); color: var(--white) !important; }

/* ============================================
   LOADING SCREEN
============================================ */
#pageLoader {
  position: fixed; inset: 0; z-index: 99999;
  background: var(--white);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.55s ease, visibility 0.55s ease;
}
[data-dark] #pageLoader { background: var(--dm-bg); }
#pageLoader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-inner {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  position: relative;
}
.loader-inner img {
  width: 72px; height: 72px; object-fit: contain; border-radius: 50%;
  animation: loaderPulse 1.4s ease-in-out infinite;
}
.loader-brand { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.loader-brand-main {
  font-family: 'Inter', sans-serif; font-weight: 700; font-size: 0.9rem;
  letter-spacing: 4px; color: var(--black);
}
[data-dark] .loader-brand-main { color: #e8e3db; }
.loader-brand-sub {
  font-family: 'Inter', sans-serif; font-weight: 300; font-size: 0.7rem;
  letter-spacing: 2px; color: var(--gold); text-transform: uppercase;
}
.loader-ring {
  width: 52px; height: 52px; margin-top: 16px;
  border: 2.5px solid rgba(201,168,76,0.2);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.85s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes loaderPulse {
  0%,100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(0.94); opacity: 0.8; }
}

/* ============================================
   SCROLL PROGRESS BAR
============================================ */
#scrollProgress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: var(--gold); z-index: 9998;
  transition: width 0.08s linear;
  box-shadow: 0 0 8px rgba(201,168,76,0.6);
}

/* ============================================
   DARK MODE TOGGLE
============================================ */
.dark-toggle {
  width: 38px; height: 38px;
  border: 1.5px solid rgba(201,168,76,0.35);
  border-radius: 50%; background: transparent; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold); font-size: 0.85rem;
  transition: var(--trans); flex-shrink: 0;
}
.dark-toggle:hover { background: rgba(201,168,76,0.12); border-color: var(--gold); }
[data-dark] .dark-toggle { border-color: rgba(201,168,76,0.4); color: var(--gold); }

/* ============================================
   3D SCREENSHOT BUTTON
============================================ */
.v3d-shot {
  position: absolute; top: 12px; right: 12px;
  width: 36px; height: 36px;
  background: rgba(0,0,0,0.45); color: white;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px; cursor: pointer; font-size: 0.82rem;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s ease, transform 0.15s ease;
  z-index: 10;
}
.v3d-shot:hover { background: rgba(201,168,76,0.75); transform: scale(1.08); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--black);
  border-radius: 2px;
  transition: var(--trans);
}
.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--white);
  padding: 16px 24px 24px;
  border-top: 1px solid rgba(201,168,76,0.15);
}
.nav-mobile a {
  color: rgba(26,26,26,0.8);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: var(--trans);
}
.nav-mobile a:hover { color: var(--gold); padding-left: 8px; }
.nav-mobile.open { display: flex; }

/* ============================================
   HERO
============================================ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: url('https://images.unsplash.com/photo-1533090481720-856c6e3c1fdc?w=1600&q=85') center/cover no-repeat;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,26,0.75) 40%, rgba(201,168,76,0.25) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin-left: 8%;
  animation: fadeUp 1s ease both;
}
.hero-sub {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-sub::before {
  content: '';
  display: inline-block;
  width: 40px; height: 1px;
  background: var(--gold);
}
#hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.15;
}
#hero h1 span { color: var(--gold); }
.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  line-height: 1.7;
  max-width: 480px;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.hero-scroll span {
  display: block;
  width: 24px; height: 38px;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 12px;
  position: relative;
}
.hero-scroll span::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: var(--gold);
  border-radius: 2px;
  animation: scrollAnim 2s ease infinite;
}

/* ============================================
   STATS BAR
============================================ */
.stats-bar {
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  padding: 0;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 48px;
}
.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--black);
  line-height: 1;
}
.stat-label {
  font-size: 0.8rem;
  color: rgba(26,26,26,0.65);
  margin-top: 6px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(26,26,26,0.15);
}

/* ============================================
   ABOUT
============================================ */
#about {
  padding: 100px 0;
  background: var(--cream);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-img-wrap {
  position: relative;
}
.about-img-bg {
  position: absolute;
  top: -20px; left: -20px;
  width: 70%; height: 70%;
  background: var(--gold);
  opacity: 0.12;
  border-radius: var(--radius);
}
.about-img-frame {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4/3;
}
.about-art {
  width: 100%; height: 100%;
  background: linear-gradient(150deg, #3b1f0e 0%, #8b5a2b 50%, #c4854a 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.about-art i {
  font-size: 4.5rem;
  color: rgba(255,255,255,0.25);
}
.about-art span {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
}
/* legacy img fallback */
.about-img-frame img {
  height: 100%;
  transition: transform 0.6s ease;
}
.about-img-frame:hover img { transform: scale(1.04); }
.about-badge {
  position: absolute;
  bottom: -20px; right: -20px;
  background: var(--gold);
  color: var(--black);
  padding: 18px 22px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 8px 24px rgba(201,168,76,0.4);
}
.about-badge i { font-size: 1.6rem; }
.about-badge span { font-weight: 700; font-size: 0.85rem; line-height: 1.4; }
.about-text h2 {
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  color: var(--black);
  margin-bottom: 20px;
}
.about-text p {
  color: #555;
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 0.95rem;
}
.about-list {
  list-style: none;
  margin: 24px 0 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.about-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text);
  font-weight: 500;
}
.about-list li i {
  color: var(--gold);
  font-size: 0.8rem;
  background: rgba(201,168,76,0.15);
  width: 22px; height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ============================================
   CATEGORIES
============================================ */
.products-section {
  padding: 100px 0;
  background: var(--white);
}
.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.category-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--trans), box-shadow var(--trans);
  background: var(--white);
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.15);
}
.cat-img {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.cat-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* Kategori CSS Görselleri */
.cat-masa     { background: linear-gradient(150deg, #c4854a 0%, #8b5a2b 55%, #5c3317 100%); }
.cat-sandalye { background: linear-gradient(150deg, #5c3317 0%, #3b1f0e 55%, #7a4520 100%); }
.cat-bar      { background: linear-gradient(150deg, #2a1a0a 0%, #5c4030 55%, #c4854a 100%); }
.cat-takim    { background: linear-gradient(150deg, #c9a84c 0%, #a0752a 50%, #5c3317 100%); }
.cat-art {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}
.cat-art i {
  font-size: 4rem;
  color: rgba(255,255,255,0.22);
  transition: transform 0.4s ease, color 0.4s ease;
}
.category-card:hover .cat-art i {
  transform: scale(1.15);
  color: rgba(255,255,255,0.4);
}
.cat-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,26,26,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--trans);
}
.category-card:hover .cat-overlay { opacity: 1; }
.cat-info {
  padding: 20px;
}
.cat-info h3 {
  font-size: 1.1rem;
  color: var(--black);
  margin-bottom: 6px;
}
.cat-info p {
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.6;
}

/* ============================================
   FEATURED PRODUCTS
============================================ */
.featured-section {
  padding: 80px 0 100px;
  background: var(--cream);
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.product-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--trans), box-shadow var(--trans);
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.12);
}
.product-img {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
/* Ürün CSS Görselleri */
.pi-rustik { background: linear-gradient(150deg, #c4854a 0%, #8b5a2b 55%, #5c3317 100%); }
.pi-metal  { background: linear-gradient(150deg, #2a2a2a 0%, #444 50%, #1a1a1a 100%); }
.pi-cafe   { background: linear-gradient(150deg, #3b1f0e 0%, #7a4520 55%, #c4854a 100%); }
.pi-ceviz  { background: linear-gradient(150deg, #3b1f0e 0%, #5c3317 55%, #8b5a2b 100%); }
.pi-art {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}
.pi-art i {
  font-size: 3.5rem;
  color: rgba(255,255,255,0.2);
  transition: transform 0.4s ease, color 0.4s ease;
}
.product-card:hover .pi-art i {
  transform: scale(1.12);
  color: rgba(255,255,255,0.38);
}
.product-tag {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--gold);
  color: var(--black);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 3px;
}
.product-info {
  padding: 20px;
}
.product-info h4 {
  font-size: 1rem;
  color: var(--black);
  margin-bottom: 4px;
}
.product-info p {
  font-size: 0.8rem;
  color: var(--gray);
  margin-bottom: 14px;
}
.product-link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gold);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--trans);
}
.product-link:hover { gap: 10px; }

/* ============================================
   WHY US
============================================ */
.why-section {
  padding: 100px 0;
  background: var(--cream-dark);
}
.why-section .section-tag { color: var(--gold-dark); }
.why-section h2 { color: var(--black); }
.why-section .section-head h2 { color: var(--black); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.why-card {
  background: var(--white);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--trans);
}
.why-card:hover {
  background: rgba(201,168,76,0.08);
  border-color: rgba(201,168,76,0.4);
  transform: translateY(-4px);
}
.why-icon {
  width: 52px; height: 52px;
  background: rgba(201,168,76,0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: var(--trans);
}
.why-card:hover .why-icon { background: var(--gold); }
.why-icon i {
  font-size: 1.3rem;
  color: var(--gold);
  transition: var(--trans);
}
.why-card:hover .why-icon i { color: var(--black); }
.why-card h4 {
  font-size: 1rem;
  color: var(--black);
  margin-bottom: 10px;
}
.why-card p {
  font-size: 0.86rem;
  color: var(--gray);
  line-height: 1.7;
}

/* ============================================
   CONTACT
============================================ */
.contact-section {
  padding: 100px 0;
  background: var(--white);
}
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.contact-card {
  background: var(--cream);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  color: inherit;
  transition: transform var(--trans), box-shadow var(--trans);
  gap: 12px;
}
.contact-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.13);
}
.contact-card h3 {
  font-size: 1.1rem;
  color: var(--black);
  margin: 0;
}
.contact-card p {
  font-size: 0.95rem;
  color: #666;
  margin: 0;
  line-height: 1.6;
}
.contact-card-btn {
  display: inline-block;
  margin-top: 8px;
  padding: 10px 24px;
  background: var(--gold);
  color: var(--black);
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
}
.contact-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  flex-shrink: 0;
  margin-bottom: 4px;
}
.contact-icon--wa    { background: rgba(37,211,102,0.12); color: #25d366; }
.contact-icon--wa i  { color: #25d366; }
.contact-icon--phone { background: rgba(201,168,76,0.12); color: var(--gold); }
.contact-icon--phone i { color: var(--gold); }
.contact-icon--addr  { background: rgba(201,168,76,0.12); color: var(--gold); }
.contact-icon--addr i { color: var(--gold); }
.contact-icon i { font-size: 1.6rem; }
.social-links {
  display: flex;
  gap: 12px;
}
.social-links a {
  width: 40px; height: 40px;
  border: 1.5px solid rgba(201,168,76,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--trans);
}
.social-links a:hover {
  background: var(--gold);
  color: var(--black);
  border-color: var(--gold);
}

/* ============================================
   FOOTER
============================================ */
.footer {
  background: #1a1a1a;
  color: rgba(255,255,255,0.6);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding: 64px 0 48px;
}
.footer-logo {
  height: 72px;
  width: auto;
  object-fit: contain;
  margin-bottom: 16px;
  background: var(--white);
  padding: 10px 16px;
  border-radius: 10px;
  display: block;
}
.footer-logo-text {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 0.86rem;
  line-height: 1.7;
  margin-bottom: 20px;
}
.footer-links h5,
.footer-contact h5 {
  color: var(--white);
  font-size: 0.9rem;
  margin-bottom: 16px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.footer-links a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 0.86rem;
  padding: 6px 0;
  transition: var(--trans);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.footer-links a:hover { color: var(--gold); padding-left: 6px; }
.footer-contact p {
  font-size: 0.86rem;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.footer-contact p i { color: var(--gold); width: 14px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 24px;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.3);
}

/* ============================================
   WHATSAPP FLOAT
============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 28px; right: 28px;
  z-index: 999;
  width: 56px; height: 56px;
  background: #25D366;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37,211,102,0.45);
  transition: var(--trans);
  animation: pulse 2.5s ease infinite;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  background: #1fb855;
}

/* ============================================
   WHATSAPP PRODUCT BUTTON
============================================ */
.product-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 4px;
}
.product-wa {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.76rem;
  font-weight: 600;
  color: #25D366;
  text-decoration: none;
  background: rgba(37,211,102,0.08);
  border: 1px solid rgba(37,211,102,0.25);
  padding: 6px 10px;
  border-radius: 4px;
  transition: var(--trans);
  white-space: nowrap;
}
.product-wa:hover {
  background: #25D366;
  color: white;
  border-color: #25D366;
}

/* ============================================
   MALZEME & RENK SEÇİCİ
============================================ */
.material-section {
  padding: 100px 0;
  background: var(--white);
}
.material-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  align-items: start;
}
.material-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mat-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--trans);
  background: var(--cream);
  position: relative;
}
.mat-card:hover { border-color: rgba(201,168,76,0.4); background: var(--white); box-shadow: var(--shadow); }
.mat-card.active { border-color: var(--gold); background: var(--white); box-shadow: var(--shadow); }
.mat-texture {
  width: 52px; height: 52px;
  border-radius: 8px;
  flex-shrink: 0;
  box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}
.mat-info { flex: 1; }
.mat-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 3px;
}
.mat-header h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--black);
}
.mat-badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 20px;
  background: rgba(201,168,76,0.15);
  color: var(--gold-dark);
  text-transform: uppercase;
}
.mat-badge.premium { background: rgba(92,51,23,0.12); color: var(--brown); }
.mat-badge.eco     { background: rgba(76,153,76,0.12); color: #3a7a3a; }
.mat-info > p { font-size: 0.78rem; color: var(--gray); margin-bottom: 6px; }
.mat-tags { display: flex; gap: 5px; flex-wrap: wrap; }
.mat-tags span {
  font-size: 0.68rem;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--cream-dark);
  color: var(--gray);
}
.mat-check {
  color: var(--gold);
  font-size: 0.9rem;
  opacity: 0;
  transition: var(--trans);
  flex-shrink: 0;
}
.mat-card.active .mat-check { opacity: 1; }

/* Önizleme paneli */
.material-preview {
  position: sticky;
  top: 100px;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
  border: 1px solid rgba(201,168,76,0.15);
}
.mat-preview-img {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: linear-gradient(150deg, #c4854a 0%, #8b5a2b 55%, #5c3317 100%);
}
.mat-preview-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: opacity 0.4s ease;
}
.mat-color-strip {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 5px;
  transition: background 0.4s ease;
}
.mat-preview-body {
  padding: 24px;
  background: var(--white);
}
.mat-preview-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.mat-preview-top h3 {
  font-size: 1.2rem;
  color: var(--black);
}
#matPreviewDesc {
  font-size: 0.84rem;
  color: #666;
  line-height: 1.7;
  margin-bottom: 20px;
}
.mat-bars { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.mat-bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.mat-bar-row > span:first-child {
  font-size: 0.75rem;
  color: var(--gray);
  width: 82px;
  flex-shrink: 0;
}
.mat-bar-row > span:last-child {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--black);
  width: 24px;
  text-align: right;
}
.mat-bar-track {
  flex: 1;
  height: 6px;
  background: var(--cream-dark);
  border-radius: 3px;
  overflow: hidden;
}
.mat-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold));
  border-radius: 3px;
  transition: width 0.5s ease;
}

/* ============================================
   MASA BOYUTU HESAPLAYICI
============================================ */
.calculator-section {
  padding: 100px 0;
  background: var(--cream);
}
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  align-items: center;
}
.calc-info h2 {
  font-size: clamp(1.7rem, 2.5vw, 2.3rem);
  color: var(--black);
  margin-bottom: 16px;
}
.calc-info > p {
  color: #666;
  line-height: 1.8;
  margin-bottom: 28px;
  font-size: 0.95rem;
}
.calc-tips {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.calc-tips li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.86rem;
  color: #555;
}
.calc-tips li i { color: var(--gold); margin-top: 2px; flex-shrink: 0; }
.calc-form-wrap {
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 36px;
}
.calc-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.calc-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.calc-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--black);
  letter-spacing: 0.3px;
}
.calc-group input {
  padding: 12px 14px;
  border: 1.5px solid #e0d8cc;
  border-radius: 6px;
  font-size: 0.9rem;
  outline: none;
  transition: var(--trans);
}
.calc-group input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(201,168,76,0.1); }
.counter {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1.5px solid #e0d8cc;
  border-radius: 6px;
  overflow: hidden;
  width: fit-content;
}
.counter button {
  width: 44px; height: 44px;
  background: var(--cream);
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--black);
  transition: var(--trans);
  font-weight: 600;
}
.counter button:hover { background: var(--gold); color: var(--white); }
.counter span {
  min-width: 52px;
  text-align: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--black);
}
.calc-result {
  margin-top: 24px;
  background: var(--cream);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  border: 1px solid rgba(201,168,76,0.25);
  flex-wrap: wrap;
}
.calc-result-icon {
  width: 52px; height: 52px;
  background: rgba(201,168,76,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.calc-result-icon i { color: var(--gold); font-size: 1.2rem; }
.calc-result-text { flex: 1; }
.calc-result-label { font-size: 0.75rem; color: var(--gray); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.calc-result-size { font-family: 'Playfair Display', serif; font-size: 1.5rem; font-weight: 700; color: var(--black); line-height: 1.2; }
.calc-result-note { font-size: 0.8rem; color: var(--gray); margin-top: 4px; }

/* ============================================
   REFERANS PROJELER
============================================ */
/* ============================================
   ÜRETİM SÜRECİ
============================================ */
/* ============================================
   3D ÜRÜN GÖRÜNTÜLEYİCİ
============================================ */
.viewer3d-section {
  padding: 100px 0;
  background: var(--white);
}
.viewer3d-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: center;
}
.viewer3d-wrap {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(201,168,76,0.15);
  background: #faf6f0;
}
.viewer3d-wrap canvas {
  display: block;
  width: 100% !important;
  min-height: 360px;
}
.viewer3d-hint {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.45);
  color: white;
  font-size: 0.75rem;
  padding: 6px 14px;
  border-radius: 20px;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.viewer3d-controls {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.viewer3d-controls h4 {
  font-size: 1rem;
  color: var(--black);
  margin-bottom: 4px;
}
.color3d-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.color3d-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1.5px solid transparent;
  border-radius: 8px;
  background: var(--cream);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  transition: var(--trans);
  font-family: 'Inter', sans-serif;
}
.color3d-btn:hover { border-color: rgba(201,168,76,0.4); background: var(--white); }
.color3d-btn.active { border-color: var(--gold); background: var(--white); box-shadow: 0 2px 12px rgba(201,168,76,0.15); }
.color3d-swatch {
  width: 22px; height: 22px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
.viewer3d-info {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px;
  background: var(--cream);
  border-radius: 10px;
  border: 1px solid rgba(201,168,76,0.15);
}
.v3d-info-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.84rem;
  color: var(--text);
}
.v3d-info-row i { color: var(--gold); width: 16px; }

.v3d-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.v3d-gal-item {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 4/3;
  display: block;
  text-decoration: none;
  box-shadow: var(--shadow);
}
.v3d-gal-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.v3d-gal-item:hover img { transform: scale(1.07); }
.v3d-gal-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,26,0.7) 0%, transparent 50%);
  display: flex;
  align-items: flex-end;
  padding: 14px;
  opacity: 0;
  transition: var(--trans);
}
.v3d-gal-item:hover .v3d-gal-overlay { opacity: 1; }
.v3d-gal-overlay span {
  color: white;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.product-toggle {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.ptoggle-btn {
  padding: 9px 22px;
  border: 1.5px solid rgba(201,168,76,0.35);
  border-radius: 30px;
  background: transparent;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.86rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--trans);
}
.ptoggle-btn:hover {
  border-color: var(--gold);
  background: rgba(201,168,76,0.08);
}
.ptoggle-btn.active {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(201,168,76,0.3);
}

.process-section {
  padding: 100px 0;
  background: var(--black);
}
.process-section .section-tag { color: var(--gold); }
.process-section h2 { color: var(--white); }
.process-section .section-desc { color: rgba(255,255,255,0.55); }

.process-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 48px;
  max-width: 960px;
  margin: 0 auto;
}
.process-step {
  display: flex;
  gap: 0;
}
.ps-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-right: 20px;
  flex-shrink: 0;
}
.ps-num {
  width: 48px; height: 48px;
  background: var(--gold);
  color: var(--black);
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(201,168,76,0.4);
  z-index: 1;
}
.ps-line {
  width: 2px;
  flex: 1;
  background: rgba(201,168,76,0.25);
  margin: 8px 0;
  min-height: 40px;
}
.ps-card {
  display: flex;
  gap: 16px;
  padding: 0 0 40px;
  align-items: flex-start;
}
.ps-icon {
  width: 46px; height: 46px;
  background: rgba(201,168,76,0.1);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--trans);
}
.process-step:hover .ps-icon {
  background: var(--gold);
  border-color: var(--gold);
}
.ps-icon i { color: var(--gold); font-size: 1.1rem; transition: var(--trans); }
.process-step:hover .ps-icon i { color: var(--black); }
.ps-content h4 {
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 8px;
  margin-top: 10px;
}
.ps-content p {
  font-size: 0.84rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.75;
}

.references-section {
  padding: 100px 0;
  background: var(--white);
}
.ref-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}
.ref-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}
.ref-card.large {
  grid-row: span 2;
  aspect-ratio: auto;
}
/* Referans CSS Görselleri */
.ref-restoran { background: linear-gradient(160deg, #1a0e06 0%, #5c3317 50%, #8b5a2b 100%); }
.ref-cafe     { background: linear-gradient(160deg, #2a1a0a 0%, #7a4520 55%, #c4854a 100%); }
.ref-otel     { background: linear-gradient(160deg, #1a1a1a 0%, #3a2a1a 55%, #5c4030 100%); }
.ref-ev       { background: linear-gradient(160deg, #5c3317 0%, #8b5a2b 55%, #c9a84c 100%); }
.ref-art {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ref-art i {
  font-size: 3.5rem;
  color: rgba(255,255,255,0.18);
  transition: transform 0.4s ease, color 0.4s ease;
}
.ref-card:hover .ref-art i { transform: scale(1.12); color: rgba(255,255,255,0.32); }
.ref-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 55%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  transition: var(--trans);
}
.ref-tag {
  display: inline-block;
  background: var(--gold);
  color: var(--black);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 3px;
  margin-bottom: 8px;
  width: fit-content;
}
.ref-overlay h4 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 4px;
}
.ref-overlay p {
  color: rgba(255,255,255,0.7);
  font-size: 0.8rem;
}

/* ============================================
   SSS / FAQ
============================================ */
.faq-section {
  padding: 100px 0;
  background: var(--cream);
}
.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid rgba(201,168,76,0.15);
  overflow: hidden;
  transition: var(--trans);
}
.faq-item:hover { border-color: rgba(201,168,76,0.35); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  gap: 16px;
}
.faq-q span {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--black);
}
.faq-q i {
  color: var(--gold);
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: transform var(--trans);
}
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
}
.faq-item.open .faq-a {
  max-height: 200px;
  padding: 0 24px 20px;
}
.faq-a p {
  font-size: 0.88rem;
  color: #666;
  line-height: 1.8;
  border-top: 1px solid var(--cream-dark);
  padding-top: 16px;
}

/* ============================================
   ANIMATIONS
============================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scrollAnim {
  0%   { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(14px); }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,0.45); }
  50%       { box-shadow: 0 4px 32px rgba(37,211,102,0.7); }
}

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 1100px) {
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid   { grid-template-columns: repeat(2, 1fr); }
  .footer-grid     { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .about-grid       { grid-template-columns: 1fr; gap: 40px; }
  .about-badge      { bottom: 12px; right: 12px; }
  .contact-cards    { grid-template-columns: 1fr; gap: 20px; }
  .why-grid         { grid-template-columns: repeat(2, 1fr); }
  .calc-grid        { grid-template-columns: 1fr; gap: 40px; }
  .material-layout  { grid-template-columns: 1fr; }
  .material-preview { position: static; }
  .viewer3d-layout  { grid-template-columns: 1fr; }
  .v3d-gallery      { grid-template-columns: repeat(2, 1fr); }
  .process-steps    { grid-template-columns: 1fr; gap: 0; }
  .ref-grid         { grid-template-columns: 1fr 1fr; }
  .ref-card.large   { grid-row: span 1; }
}

@media (max-width: 768px) {
  .nav-desktop { display: none; }
  .hamburger   { display: flex; }

  .stat { padding: 24px 24px; }
  .stat-divider { display: none; }
  .stats-bar { gap: 0; }

  .categories-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .products-grid   { grid-template-columns: 1fr 1fr; gap: 16px; }
  .why-grid        { grid-template-columns: 1fr; }
  .material-grid   { grid-template-columns: repeat(2, 1fr); }
  .material-result { flex-direction: column; align-items: flex-start; }
  .process-steps   { grid-template-columns: 1fr; }
  .ref-grid        { grid-template-columns: 1fr; }
  .ref-card.large  { aspect-ratio: 4/3; }

  .contact-cards { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 40px 0 32px; }

  .hero-content { margin-left: 5%; }
}

@media (max-width: 480px) {
  .categories-grid { grid-template-columns: 1fr; }
  .products-grid   { grid-template-columns: 1fr; }
  .hero-btns       { flex-direction: column; }
  .hero-btns a     { text-align: center; }
}