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

:root {
  --linde-red: #D2000F;
  --linde-dark: #2B2B2B;
  --linde-light-gray: #F4F4F4;
  --linde-white: #FFFFFF;
  --text-main: #333333;
  --primary: #D2000F;
  --primary-dark: #a8000c;
  --text-muted: #777777;
  --border: #e4e4e4;
  --card-shadow: 0 2px 20px rgba(0,0,0,0.06);
  --card-shadow-hover: 0 12px 32px rgba(210,0,15,0.12);
  --dark: #1a1a1a;
  --dark-2: #232323;
  --text: rgba(255,255,255,0.75);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--linde-white);
  color: var(--text-main);
  line-height: 1.6;
}

.app { min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }

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

.section { padding: 88px 0; }
.section-alt { background: var(--linde-light-gray); }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .badge { margin-bottom: 14px; }

.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--linde-dark);
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

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

.section-title-accent {
  display: inline-block;
  width: 48px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  margin: 12px auto 16px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.02rem;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

.badge {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(210,0,15,0.07);
  color: var(--primary);
  border: 1px solid rgba(210,0,15,0.18);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 4px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
  border: none;
  letter-spacing: 0.2px;
  font-family: inherit;
}

.btn-primary { background: var(--primary); color: var(--linde-white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(210,0,15,0.3); }

.btn-outline { background: transparent; color: var(--linde-white); border: 2px solid rgba(255,255,255,0.7); }
.btn-outline:hover { background: var(--linde-white); color: var(--linde-dark); border-color: var(--linde-white); transform: translateY(-2px); }

.btn-outline-red { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline-red:hover { background: var(--primary); color: var(--linde-white); transform: translateY(-2px); }

.btn-white { background: var(--linde-white); color: var(--primary); font-weight: 800; }
.btn-white:hover { background: #f0f0f0; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

.btn-outline-white { background: transparent; color: var(--linde-white); border: 2px solid rgba(255,255,255,0.6); font-weight: 700; }
.btn-outline-white:hover { border-color: var(--linde-white); background: rgba(255,255,255,0.1); transform: translateY(-2px); }

.btn-outline-dark { background: transparent; color: var(--text-muted); border: 1.5px solid var(--border); padding: 10px 20px; border-radius: 4px; font-size: 0.88rem; font-weight: 600; cursor: pointer; font-family: inherit; transition: all 0.2s; }
.btn-outline-dark:hover { border-color: var(--primary); color: var(--primary); }

/* NAVBAR */
.navbar-topbar { height: 3px; background: var(--primary); width: 100%; position: fixed; top: 0; z-index: 1001; }

.navbar {
  position: fixed;
  top: 3px;
  width: 100%;
  z-index: 1000;
  padding: 0;
  background: var(--linde-white);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s ease;
}

.navbar.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.1); }

.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 96px;
}

.navbar-logo { display: flex; align-items: center; gap: 4px; margin-left: -16px; }
.navbar-logo-img { height: 82px; width: auto; object-fit: contain; display: block; }
.navbar-logo-text { font-size: 2.1rem; font-weight: 900; color: var(--linde-dark); letter-spacing: -0.5px; }
.navbar-logo-text span { color: var(--primary); }

.navbar-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.navbar-links li > a { color: #555; font-weight: 500; font-size: 0.92rem; padding: 8px 14px; border-radius: 4px; transition: all 0.2s; display: block; }
.navbar-links li > a:hover, .navbar-links li > a.active { color: var(--primary); background: rgba(210,0,15,0.06); }

.navbar-cta { background: var(--primary) !important; color: var(--linde-white) !important; padding: 9px 22px !important; border-radius: 4px !important; font-weight: 700 !important; margin-left: 8px; }
.navbar-cta:hover { background: var(--primary-dark) !important; color: var(--linde-white) !important; }

.navbar-mobile-btn { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 6px; }
.navbar-mobile-btn span { display: block; width: 24px; height: 2px; background: var(--linde-dark); transition: all 0.3s; border-radius: 2px; }

.navbar-mobile-menu { display: none; background: var(--linde-white); border-top: 1px solid var(--border); padding: 8px 16px 16px; box-shadow: 0 8px 24px rgba(0,0,0,0.1); }
.navbar-mobile-menu.open { display: block; }
.navbar-mobile-menu a { display: block; padding: 12px 8px; color: var(--text-main); font-weight: 500; border-bottom: 1px solid var(--border); transition: color 0.2s; }
.navbar-mobile-menu a:last-child { border-bottom: none; }
.navbar-mobile-menu a:hover { color: var(--primary); }

/* PAGE HERO */
.page-hero {
  background: linear-gradient(135deg, #1c1c1c 0%, #2B2B2B 70%, #3d0008 100%);
  padding: 96px 0 72px;
  text-align: center;
  margin-top: 99px;
  position: relative;
  overflow: hidden;
}

.page-hero::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, transparent, var(--primary), transparent); }
.page-hero .badge { margin-bottom: 16px; }
.page-hero h1 { font-size: 2.6rem; font-weight: 800; color: var(--linde-white); letter-spacing: -0.5px; margin-bottom: 14px; }
.page-hero h1 span { color: var(--primary); }
.page-hero p { color: rgba(255,255,255,0.6); font-size: 1.05rem; max-width: 520px; margin: 0 auto; line-height: 1.7; }

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  overflow: hidden;
  padding-top: 99px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(0,0,0,0.82) 0%, rgba(20,0,0,0.70) 50%, rgba(0,0,0,0.35) 100%);
  z-index: 0;
}

.hero::before { content: ''; position: absolute; top: -20%; right: -5%; width: 700px; height: 700px; background: radial-gradient(circle, rgba(210,0,15,0.08) 0%, transparent 65%); border-radius: 50%; pointer-events: none; z-index: 1; }
.hero::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, transparent, var(--primary) 30%, var(--primary) 70%, transparent); z-index: 2; }

.hero-content { max-width: 1200px; margin: 0 auto; padding: 80px 24px; display: flex; align-items: center; width: 100%; position: relative; z-index: 1; }

.hero-tag { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; background: rgba(210,0,15,0.15); border: 1px solid rgba(210,0,15,0.3); border-radius: 20px; color: #ff6b6b; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 22px; }
.hero-tag::before { content: ''; width: 6px; height: 6px; background: var(--primary); border-radius: 50%; animation: pulse 1.5s infinite; }

@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.4); } }

.hero-text { max-width: 620px; }
.hero-text h1 { font-size: 3.4rem; font-weight: 900; line-height: 1.15; color: var(--linde-white); margin-bottom: 22px; letter-spacing: -1px; }
.hero-text h1 span { color: var(--primary); }
.hero-text p { font-size: 1.1rem; color: rgba(255,255,255,0.65); margin-bottom: 36px; max-width: 460px; line-height: 1.75; }
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }

/* FEATURED */
.featured-section { background: var(--linde-light-gray); }
.featured-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 8px; }

.featured-card { background: var(--linde-white); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; box-shadow: var(--card-shadow); transition: all 0.3s ease; display: flex; flex-direction: column; }
.featured-card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow-hover); border-color: rgba(210,0,15,0.2); }

.featured-card-img { height: 220px; background: #f0f0f0; position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.featured-card-img img { width: 100%; height: 100%; object-fit: contain; padding: 14px; transition: transform 0.4s ease; }
.featured-card:hover .featured-card-img img { transform: scale(1.04); }

.featured-img-fallback { display: none; font-size: 5rem; align-items: center; justify-content: center; width: 100%; height: 100%; }

.featured-badge { position: absolute; top: 12px; left: 12px; padding: 5px 12px; border-radius: 20px; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.3px; }
.badge-electric { background: rgba(34,197,94,0.15); color: #16a34a; border: 1px solid rgba(34,197,94,0.3); }
.badge-diesel { background: rgba(234,88,12,0.12); color: #c2410c; border: 1px solid rgba(234,88,12,0.25); }
.badge-stacker { background: rgba(59,130,246,0.12); color: #1d4ed8; border: 1px solid rgba(59,130,246,0.25); }

.featured-card-body { padding: 20px 22px 14px; flex: 1; }
.featured-label { font-size: 0.72rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 6px; }
.featured-card-body h3 { font-size: 1.08rem; font-weight: 800; color: var(--linde-dark); margin-bottom: 4px; letter-spacing: -0.2px; }
.featured-card-body > p { font-size: 0.83rem; color: var(--text-muted); }

.featured-card-footer { padding: 14px 22px; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 16px; background: #fafafa; }
.featured-offer-link { font-size: 0.84rem; font-weight: 600; color: var(--text-muted); transition: color 0.2s; }
.featured-offer-link:hover { color: var(--primary); }

/* STATS BAR */
.stats-bar { background: var(--primary); padding: 0; }
.stats-bar-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: repeat(4, 1fr); }
.stats-bar-item { padding: 32px 24px; text-align: center; border-right: 1px solid rgba(255,255,255,0.15); transition: background 0.3s; }
.stats-bar-item:last-child { border-right: none; }
.stats-bar-item:hover { background: rgba(0,0,0,0.1); }
.stats-bar-number { font-size: 2.4rem; font-weight: 900; color: var(--linde-white); line-height: 1; letter-spacing: -1px; }
.stats-bar-label { font-size: 0.82rem; color: rgba(255,255,255,0.75); margin-top: 6px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; }

/* SERVICES */
.services { background: var(--linde-light-gray); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.service-card { background: var(--linde-white); border: 1px solid var(--border); border-radius: 10px; padding: 32px 24px; transition: all 0.3s ease; box-shadow: var(--card-shadow); position: relative; overflow: hidden; }
.service-card::before { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: var(--primary); transform: scaleX(0); transition: transform 0.3s; }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--card-shadow-hover); }
.service-card:hover::before { transform: scaleX(1); }

.service-icon-wrap { width: 56px; height: 56px; background: rgba(210,0,15,0.08); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.7rem; margin-bottom: 18px; transition: background 0.3s; }
.service-card:hover .service-icon-wrap { background: rgba(210,0,15,0.14); }
.service-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--linde-dark); margin-bottom: 10px; }
.service-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.75; }

/* WHY US */
.whyus { background: var(--linde-white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 48px 0; }
.whyus-grid { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.whyus-item { display: flex; align-items: flex-start; gap: 14px; }
.whyus-icon { width: 44px; height: 44px; background: var(--primary); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; flex-shrink: 0; }
.whyus-item h4 { font-size: 0.95rem; font-weight: 700; color: var(--linde-dark); margin-bottom: 3px; }
.whyus-item p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.55; }

/* CTA BANNER */
.cta-banner { background: var(--primary); padding: 72px 0; text-align: center; position: relative; overflow: hidden; }
.cta-banner::before { content: ''; position: absolute; top: -60%; left: -10%; width: 500px; height: 500px; background: rgba(0,0,0,0.08); border-radius: 50%; pointer-events: none; }
.cta-banner h2 { font-size: 2.2rem; font-weight: 900; color: var(--linde-white); margin-bottom: 14px; letter-spacing: -0.5px; }
.cta-banner p { color: rgba(255,255,255,0.8); font-size: 1.05rem; margin-bottom: 36px; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* PRODUCTS PAGE */
.products-page { padding-top: 0; }
.products-filter { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }

.filter-btn { padding: 9px 20px; border-radius: 4px; border: 1px solid var(--border); background: var(--linde-white); color: var(--text-muted); cursor: pointer; font-size: 0.88rem; transition: all 0.25s; font-family: inherit; font-weight: 500; }
.filter-btn:hover:not(.active) { color: var(--primary); border-color: var(--primary); background: rgba(210,0,15,0.06); }
.filter-btn.active { background: var(--primary); color: var(--linde-white); border-color: var(--primary); font-weight: 700; }
.filter-btn.active:hover { background: var(--primary-dark); }

.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(420px, 1fr)); gap: 30px; }

.product-card { background: var(--linde-white); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease; box-shadow: var(--card-shadow); }
.product-card:hover { border-color: rgba(210,0,15,0.3); transform: translateY(-10px) scale(1.015); box-shadow: 0 24px 56px rgba(210,0,15,0.14); }

.product-card-img { height: 320px; background: #f8f8f8; display: flex; align-items: center; justify-content: center; font-size: 4.5rem; position: relative; border-bottom: 1px solid var(--border); overflow: hidden; }
.product-card-img img { width: 100%; height: 100%; object-fit: contain; padding: 12px; transition: transform 0.45s ease; }
.product-card:hover .product-card-img img { transform: scale(1.07); }
.product-card:hover .product-card-category { background: var(--primary-dark); }
.product-card:hover .spec-detail-btn { background: var(--primary-dark); }

.product-card-category { position: absolute; top: 12px; left: 12px; padding: 4px 10px; background: var(--primary); color: var(--linde-white); border-radius: 3px; font-size: 0.7rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.5px; }

.product-card-body { padding: 26px 28px 18px; }
.product-card-body h3 { font-size: 1.25rem; font-weight: 800; color: var(--linde-dark); margin-bottom: 6px; }
.product-card-body p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

.product-specs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.spec-tag { padding: 5px 12px; background: var(--linde-light-gray); border: 1px solid var(--border); border-radius: 3px; font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }

.product-card-footer { padding: 16px 28px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; background: var(--linde-light-gray); }
.product-card-footer a { color: var(--primary); font-size: 0.86rem; font-weight: 700; display: flex; align-items: center; gap: 4px; transition: gap 0.2s; }
.product-card-footer a:hover { gap: 8px; }

/* ANA SEKMELER */
.main-tabs { display: flex; gap: 0; margin-bottom: 32px; border-bottom: 2px solid var(--border); }
.main-tab-btn { padding: 13px 32px; background: none; border: none; border-bottom: 3px solid transparent; margin-bottom: -2px; font-size: 1rem; font-weight: 600; color: var(--text-muted); cursor: pointer; font-family: inherit; transition: all 0.2s; letter-spacing: 0.1px; }
.main-tab-btn:hover { color: var(--primary); }
.main-tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 800; }

/* PRODUCT GROUP */
.product-group { margin-bottom: 64px; }
.product-group-header { display: flex; align-items: center; gap: 20px; margin-bottom: 28px; }
.product-group-title { font-size: 1.35rem; font-weight: 800; color: var(--linde-dark); white-space: nowrap; letter-spacing: -0.3px; }
.product-group-line { flex: 1; height: 2px; background: linear-gradient(90deg, var(--primary) 0%, var(--border) 100%); border-radius: 2px; }

.spec-detail-btn { background: var(--primary); color: var(--linde-white); border: none; border-radius: 4px; padding: 10px 20px; font-size: 0.9rem; font-weight: 700; cursor: pointer; font-family: inherit; transition: background 0.2s; }
.spec-detail-btn:hover { background: var(--primary-dark); }

.product-offer-link { color: var(--text-muted) !important; font-size: 0.82rem !important; font-weight: 600 !important; transition: color 0.2s !important; }
.product-offer-link:hover { color: var(--primary) !important; }

.product-img-count { position: absolute; bottom: 10px; right: 10px; background: rgba(0,0,0,0.55); color: #fff; font-size: 0.7rem; font-weight: 700; padding: 3px 8px; border-radius: 10px; letter-spacing: 0.3px; }

/* GALLERY */
.gallery { width: 100%; }
.gallery-main { position: relative; width: 100%; aspect-ratio: 4/3; background: #f0f0f0; border-radius: 8px; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.gallery-main img { width: 100%; height: 100%; object-fit: contain; padding: 12px; }

.gallery-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 36px; height: 36px; background: rgba(0,0,0,0.45); color: #fff; border: none; border-radius: 50%; font-size: 1.3rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background 0.2s; z-index: 2; }
.gallery-nav:hover { background: var(--primary); }
.gallery-prev { left: 8px; }
.gallery-next { right: 8px; }

.gallery-dots { position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%); display: flex; gap: 5px; }
.gallery-dot { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,0.5); border: none; cursor: pointer; padding: 0; transition: background 0.2s; }
.gallery-dot.active { background: #fff; }

.gallery-thumbs { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.gallery-thumb { width: 64px; height: 48px; border-radius: 5px; overflow: hidden; border: 2px solid var(--border); background: #f4f4f4; cursor: pointer; padding: 0; transition: border-color 0.2s; }
.gallery-thumb.active { border-color: var(--primary); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: contain; }

/* MODAL */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.65); z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 20px; backdrop-filter: blur(2px); }
.modal-overlay.hidden { display: none; }

.modal-box { background: var(--linde-white); border-radius: 14px; width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto; position: relative; box-shadow: 0 24px 80px rgba(0,0,0,0.35); }
.modal-wide { max-width: 860px; }

.modal-content-grid { display: grid; grid-template-columns: 1fr 1fr; }
.modal-gallery-col { padding: 20px 16px 20px 28px; border-right: 1px solid var(--border); }
.modal-spec-col { overflow-y: auto; max-height: 420px; }

.modal-close { position: absolute; top: 16px; right: 16px; width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--border); background: var(--linde-white); color: var(--text-muted); font-size: 0.9rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.2s; z-index: 1; }
.modal-close:hover { background: var(--primary); color: var(--linde-white); border-color: var(--primary); }

.modal-header { padding: 32px 28px 24px; border-bottom: 1px solid var(--border); }
.modal-series-badge { display: inline-block; padding: 4px 12px; background: rgba(210,0,15,0.08); color: var(--primary); border: 1px solid rgba(210,0,15,0.2); border-radius: 20px; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 10px; }
.modal-header h2 { font-size: 1.55rem; font-weight: 800; color: var(--linde-dark); letter-spacing: -0.3px; margin-bottom: 4px; }
.modal-header p { font-size: 0.88rem; color: var(--text-muted); }

.modal-body { padding: 0; }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table tr:nth-child(even) { background: var(--linde-light-gray); }
.spec-table-label { padding: 11px 28px; font-size: 0.83rem; color: var(--text-muted); font-weight: 500; width: 55%; border-bottom: 1px solid var(--border); }
.spec-table-value { padding: 11px 28px 11px 0; font-size: 0.88rem; font-weight: 700; color: var(--linde-dark); border-bottom: 1px solid var(--border); }
.spec-empty { padding: 48px 28px; text-align: center; color: var(--text-muted); font-size: 0.92rem; }

.modal-footer { padding: 20px 28px; border-top: 1px solid var(--border); display: flex; gap: 12px; align-items: center; }

/* ABOUT */
.about-page { padding-top: 0; }
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.about-text h2 { font-size: 1.85rem; font-weight: 800; color: var(--linde-dark); margin-bottom: 6px; letter-spacing: -0.3px; }
.about-text .section-title-accent { margin: 0 0 18px; display: block; }
.about-text p { color: var(--text-muted); margin-bottom: 16px; line-height: 1.8; font-size: 0.95rem; }
.about-values { display: flex; flex-direction: column; gap: 12px; }

.value-item { display: flex; gap: 16px; align-items: flex-start; padding: 18px 20px; background: var(--linde-white); border-radius: 10px; border: 1px solid var(--border); box-shadow: var(--card-shadow); transition: all 0.3s; }
.value-item:hover { border-color: rgba(210,0,15,0.2); transform: translateX(4px); }
.value-icon { font-size: 1.6rem; min-width: 38px; }
.value-item h4 { font-weight: 700; color: var(--linde-dark); margin-bottom: 3px; font-size: 0.95rem; }
.value-item p { font-size: 0.85rem; color: var(--text-muted); }

.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 22px; }
.team-card { background: var(--linde-white); border: 1px solid var(--border); border-radius: 10px; padding: 28px 20px; text-align: center; transition: all 0.3s; box-shadow: var(--card-shadow); }
.team-card:hover { border-color: rgba(210,0,15,0.2); transform: translateY(-4px); box-shadow: var(--card-shadow-hover); }
.team-avatar { width: 76px; height: 76px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border-radius: 50%; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; font-size: 2rem; }
.team-card h4 { font-weight: 700; color: var(--linde-dark); margin-bottom: 4px; }
.team-card p { font-size: 0.84rem; color: var(--text-muted); }

/* CONTACT */
.contact-page { padding-top: 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 48px; align-items: start; }
.contact-info h2 { font-size: 1.85rem; font-weight: 800; color: var(--linde-dark); margin-bottom: 6px; }
.contact-info .section-title-accent { margin: 0 0 18px; display: block; }
.contact-info > p { color: var(--text-muted); margin-bottom: 28px; line-height: 1.8; font-size: 0.95rem; }
.contact-items { display: flex; flex-direction: column; gap: 12px; }

.contact-item { display: flex; align-items: center; gap: 16px; padding: 16px 18px; background: var(--linde-white); border-radius: 10px; border: 1px solid var(--border); box-shadow: var(--card-shadow); transition: border-color 0.3s; }
.contact-item:hover { border-color: rgba(210,0,15,0.2); }
.contact-item-icon { width: 42px; height: 42px; background: rgba(210,0,15,0.08); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; flex-shrink: 0; }
.contact-item h4 { font-weight: 700; color: var(--linde-dark); font-size: 0.85rem; margin-bottom: 2px; }
.contact-item p { font-size: 0.88rem; color: var(--text-muted); margin: 0; }

.contact-form { background: var(--linde-white); border: 1px solid var(--border); border-radius: 12px; padding: 36px; box-shadow: var(--card-shadow); }
.contact-form h3 { font-size: 1.35rem; font-weight: 800; color: var(--linde-dark); margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }

.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.83rem; font-weight: 700; color: var(--linde-dark); margin-bottom: 7px; text-transform: uppercase; letter-spacing: 0.3px; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 11px 14px; background: var(--linde-light-gray); border: 1px solid var(--border); border-radius: 6px; color: var(--text-main); font-size: 0.95rem; font-family: inherit; transition: all 0.25s; outline: none; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--primary); background: var(--linde-white); box-shadow: 0 0 0 3px rgba(210,0,15,0.08); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-success { text-align: center; padding: 40px 0; }
.form-success .success-icon { font-size: 3rem; margin-bottom: 16px; }
.form-success h3 { color: var(--primary); margin-bottom: 10px; }
.form-success p { color: var(--text-muted); }
.form-error { background: #fff0f0; border: 1px solid #ffcccc; border-radius: 6px; padding: 10px 14px; margin-bottom: 16px; color: #c00; font-size: 0.88rem; }

/* REFERENCES */
.references { background: var(--linde-light-gray); }
.references-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 16px; }
.reference-card { background: var(--linde-white); border: 1px solid var(--border); border-radius: 10px; padding: 22px 16px; text-align: center; transition: all 0.3s; box-shadow: var(--card-shadow); }
.reference-card:hover { border-color: rgba(210,0,15,0.2); transform: translateY(-3px); box-shadow: var(--card-shadow-hover); }
.reference-card-icon { font-size: 2rem; margin-bottom: 10px; }
.reference-card h4 { font-size: 0.88rem; font-weight: 700; color: var(--linde-dark); margin-bottom: 4px; }
.reference-card p { font-size: 0.76rem; color: var(--text-muted); }

/* FOOTER */
.footer { background: var(--linde-dark); border-top: 3px solid var(--primary); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; max-width: 1200px; margin: 0 auto; padding: 0 24px 48px; }
.footer-brand p { font-size: 0.87rem; color: rgba(255,255,255,0.45); line-height: 1.75; margin-bottom: 22px; }
.footer-social { display: flex; gap: 10px; }
.footer-social-icon { width: 36px; height: 36px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 1rem; cursor: pointer; transition: all 0.3s; }
.footer-social-icon:hover { background: var(--primary); border-color: var(--primary); }
.footer-col h4 { font-size: 0.88rem; font-weight: 700; color: var(--linde-white); margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,0.08); text-transform: uppercase; letter-spacing: 0.5px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.footer-col ul li a { font-size: 0.86rem; color: rgba(255,255,255,0.45); transition: color 0.25s; display: flex; align-items: center; gap: 6px; }
.footer-col ul li a:hover { color: var(--primary); }
.footer-bottom { max-width: 1200px; margin: 0 auto; padding: 20px 24px; border-top: 1px solid rgba(255,255,255,0.07); display: flex; justify-content: space-between; align-items: center; font-size: 0.82rem; color: rgba(255,255,255,0.3); }

/* TIMELINE */
.timeline { max-width: 700px; margin: 0 auto; display: flex; flex-direction: column; }
.timeline-item { display: flex; gap: 24px; position: relative; padding-bottom: 32px; }
.timeline-dot-col { display: flex; flex-direction: column; align-items: center; }
.timeline-dot { width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: var(--dark); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.78rem; flex-shrink: 0; color: white; }
.timeline-line { width: 2px; flex: 1; background: var(--border); margin-top: 8px; }
.timeline-text { padding-top: 12px; padding-bottom: 8px; }
.timeline-text p { color: rgba(255,255,255,0.75); line-height: 1.7; }

/* PRODUCT CARD SCROLL ANIMATION */
.card-hidden {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.card-visible {
  opacity: 1;
  transform: translateY(0);
}

/* SCROLL ANIMATIONS */
[data-animate] {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fade-up"] { transform: translateY(40px); }
[data-animate="fade-left"] { transform: translateX(-40px); }
[data-animate="fade-right"] { transform: translateX(40px); }
[data-animate="fade-in"] { transform: none; }
[data-animate="zoom-in"] { transform: scale(0.92); }

[data-animate].animated {
  opacity: 1;
  transform: none;
}

/* RESPONSIVE */
@media (max-width: 960px) {
  .featured-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto 8px; }
  .about-content { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
  .whyus-grid { grid-template-columns: repeat(2, 1fr); }
  .navbar-links { display: none; }
  .navbar-mobile-btn { display: flex; }
  .products-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
  .main-tabs { overflow-x: auto; }
  .main-tab-btn { padding: 12px 20px; font-size: 0.9rem; white-space: nowrap; }
  .modal-content-grid { grid-template-columns: 1fr; }
  .modal-gallery-col { border-right: none; border-bottom: 1px solid var(--border); padding: 16px 20px; }
  .modal-wide { max-width: 100%; }
}

@media (max-width: 600px) {
  .hero-text h1 { font-size: 2.2rem; }
  .section-title { font-size: 1.7rem; }
  .page-hero h1 { font-size: 1.85rem; }
  .page-hero p { font-size: 0.92rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
  .whyus-grid { grid-template-columns: 1fr 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .product-card-img { height: 220px; }
  .product-group-title { font-size: 1.1rem; }
  .featured-grid { max-width: 100%; }
  .featured-card-img { height: 180px; }
  .navbar-logo-img { height: 48px; }
  .navbar-logo-text { font-size: 1.35rem; }
  .navbar-inner { height: 68px; }
  .hero-text h1 { font-size: 1.9rem; }
  .hero-text p { font-size: 0.95rem; }
  .hero-buttons { justify-content: center; }
  .cta-banner h2 { font-size: 1.6rem; }
  .section { padding: 56px 0; }
  .modal-box { margin: 10px; }
  .spec-table-label, .spec-table-value { padding: 9px 16px; font-size: 0.82rem; }
  .page-hero { margin-top: 71px; }
}