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

:root {
  --dark: #0a0a0a;
  --dark-2: #141414;
  --dark-3: #1c1c1c;
  --dark-4: #262626;
  --gold: #c9a96e;
  --gold-light: #e8d5a8;
  --gold-dim: rgba(201,169,110,0.15);
  --white: #f5f5f5;
  --white-dim: rgba(245,245,245,0.7);
  --white-muted: rgba(245,245,245,0.5);
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(201,169,110,0.4);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 50px rgba(0,0,0,0.6);
  --radius: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--white);
  background: var(--dark);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== NAVIGATION ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(20px);
  padding: 18px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.nav.scrolled {
  padding: 14px 48px;
}

.nav .logo {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--white);
  text-transform: uppercase;
  white-space: nowrap;
}

.nav .logo span { color: var(--gold); }

.nav-links { display: flex; align-items: center; gap: 4px; }

.nav-links a {
  color: var(--white-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 4px;
  transition: var(--transition);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.nav-links a:hover { color: var(--white); }
.nav-links a.active { color: var(--gold); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 100px;
  overflow: hidden;
  background: var(--dark);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('images/steel-coils-factory.jpg') center/cover no-repeat;
  opacity: 0.5;
  filter: brightness(0.7);
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,10,10,0.4) 0%, rgba(10,10,10,0.8) 70%, var(--dark) 100%);
}

.hero-content { position: relative; z-index: 2; max-width: 800px; }

.hero-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
  padding: 8px 20px;
  border: 1px solid var(--gold);
  border-radius: 2px;
}

.hero h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 400;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
  line-height: 1.15;
}

.hero p {
  font-size: clamp(15px, 1.8vw, 18px);
  max-width: 600px;
  margin: 0 auto 40px;
  color: var(--white-dim);
  font-weight: 300;
  line-height: 1.8;
}

.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block;
  background: var(--gold);
  color: var(--dark);
  padding: 16px 40px;
  border-radius: 2px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: var(--transition);
}

.btn:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(201,169,110,0.3);
}

.btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--white);
  padding: 16px 40px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 2px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: var(--transition);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.05);
  transform: translateY(-2px);
}

.hero-sub {
  min-height: auto;
  padding: 100px 24px 80px;
}

.hero-sub::before { opacity: 0.15; }

/* ===== SECTIONS ===== */
.section {
  padding: 100px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-alt {
  background: var(--dark-2);
  max-width: 100%;
  padding: 100px 48px;
}

.section-alt > * { max-width: 1200px; margin-left: auto; margin-right: auto; }

.section h2 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 400;
  color: var(--white);
  text-align: center;
  margin-bottom: 12px;
}

.section .sub {
  text-align: center;
  color: var(--white-muted);
  margin-bottom: 60px;
  font-size: 15px;
  font-weight: 400;
}

/* ===== STATS ===== */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 30px 0;
}

.stat {
  background: var(--dark-2);
  padding: 40px 20px;
  text-align: center;
  transition: var(--transition);
}

.stat:hover { background: var(--dark-3); }

.stat .num {
  font-size: 36px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1.1;
}

.stat .label {
  font-size: 12px;
  color: var(--white-muted);
  margin-top: 8px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ===== CARDS ===== */
.highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.card {
  background: var(--dark-3);
  padding: 40px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transform: scaleX(0);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
}

.card:hover::before { transform: scaleX(1); }

.card .icon { font-size: 40px; margin-bottom: 16px; display: inline-block; }

.card h3 {
  color: var(--white);
  margin-bottom: 12px;
  font-size: 17px;
  font-weight: 600;
}

.card p {
  color: var(--white-muted);
  font-size: 14px;
  line-height: 1.8;
}

/* ===== TABLES ===== */
.product-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.product-table th {
  background: var(--dark-3);
  color: var(--gold);
  padding: 14px 18px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--border);
}

.product-table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--white-dim);
}

.product-table tr:last-child td { border-bottom: none; }
.product-table tr:hover td { background: var(--dark-3); }

/* ===== PRODUCT GRID (HOME) ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.product-card {
  display: block;
  background: var(--dark-2);
  padding: 32px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 8px 40px rgba(201,169,110,0.08);
}

.product-card .pc-icon { font-size: 32px; margin-bottom: 14px; }

.product-card h3 {
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-card .pc-grades {
  font-size: 12px;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}

.product-card .pc-use {
  font-size: 13px;
  color: var(--white-muted);
  line-height: 1.7;
  margin-bottom: 14px;
}

.product-card .pc-count {
  font-size: 12px;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ===== INDUSTRY GRID ===== */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.ind-card {
  text-align: center;
  padding: 28px 16px;
  background: var(--dark-2);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.ind-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
}

.ind-card .ind-icon { font-size: 32px; margin-bottom: 10px; }
.ind-card h4 { color: var(--white); font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.ind-card p { font-size: 12px; color: var(--white-muted); }

/* ===== GLOBAL SUPPLY ROW ===== */
.global-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  text-align: center;
}

.global-stat { padding: 24px 16px; }
.global-stat .gs-num { font-size: 24px; font-weight: 800; color: var(--white); margin-bottom: 6px; }
.global-stat .gs-label { font-size: 13px; color: var(--white-muted); }

/* ===== CTA SECTION ===== */
.cta-section {
  text-align: center;
  background: var(--dark-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  max-width: 100%;
  padding: 100px 48px;
}

.cta-section h2 { color: var(--white); }

.cta-section p {
  color: var(--white-muted);
  font-size: 17px;
  margin-bottom: 36px;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== SECTION TITLES (LEFT ALIGNED) ===== */
.section-left h2,
.section-title-left {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(22px, 2.5vw, 28px);
  color: var(--white);
  text-align: left;
  border-bottom: 2px solid var(--gold);
  display: inline-block;
  padding-bottom: 8px;
  margin-bottom: 20px;
  margin-top: 48px;
}

.section-title-left:first-of-type { margin-top: 0; }

/* ===== FORMS ===== */
.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--white-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
  background: var(--dark-3);
  color: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--gold);
  outline: none;
  box-shadow: 0 0 0 3px var(--gold-dim);
}

.form-group textarea { resize: vertical; min-height: 130px; }

.btn-primary {
  display: inline-block;
  background: var(--gold);
  color: var(--dark);
  padding: 16px 42px;
  border: none;
  border-radius: 2px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  width: 100%;
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
}

.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* ===== CONTACT CARDS ===== */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 60px;
}

.ccard {
  background: var(--dark-2);
  padding: 32px;
  border-radius: var(--radius);
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.ccard:hover { transform: translateY(-3px); border-color: var(--border-hover); }
.ccard .icon { font-size: 36px; margin-bottom: 12px; }
.ccard h3 { color: var(--white); font-size: 16px; margin-bottom: 8px; }
.ccard p { font-size: 14px; color: var(--white-muted); }
.ccard a { color: var(--gold); text-decoration: none; font-weight: 600; }

/* ===== NOTE ===== */
.note {
  background: var(--gold-dim);
  border-left: 3px solid var(--gold);
  padding: 20px 24px;
  margin: 30px 0;
  font-size: 14px;
  color: var(--white-dim);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ===== COMPANY INFO ===== */
.company-info {
  background: var(--dark-2);
  padding: 32px;
  border-radius: var(--radius);
  margin-top: 40px;
  border: 1px solid var(--border);
}

.company-info h3 { color: var(--white); margin-bottom: 16px; }
.company-info table { width: 100%; font-size: 14px; }
.company-info td { padding: 8px 12px; vertical-align: top; color: var(--white-dim); }
.company-info td:first-child { font-weight: 600; color: var(--gold); white-space: nowrap; width: 120px; }

/* ===== LINK ARROWS ===== */
.link-arrow {
  display: block;
  text-align: center;
  margin-top: 32px;
  color: var(--gold);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.5px;
  transition: var(--transition);
}

.link-arrow:hover { letter-spacing: 1px; }

/* ===== IMAGE GRIDS ===== */
.image-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.image-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.img-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.img-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.img-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: var(--transition);
}

.img-card:hover img { transform: scale(1.03); }

.img-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 16px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.banner-img {
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 40px;
}

.banner-img img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  display: block;
}

.full-width-img {
  width: 100%;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

/* ===== GRID HELPERS ===== */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 30px; }

/* ===== FOOTER ===== */
.footer {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
  color: var(--white);
  padding: 60px 48px 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  font-size: 14px;
}

.footer h4 {
  color: var(--gold);
  margin-bottom: 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.footer p { color: var(--white-muted); line-height: 1.9; }
.footer a { color: var(--white-muted); text-decoration: none; transition: var(--transition); }
.footer a:hover { color: var(--gold); }

.footer .copy {
  grid-column: 1 / -1;
  text-align: center;
  color: rgba(255,255,255,0.3);
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 12px;
}

/* ===== ANIMATIONS — ADVANCED ===== */

/* Page entrance */
@keyframes page-enter {
  from { opacity: 0; }
  to { opacity: 1; }
}
body { animation: page-enter 0.8s ease-out; }

/* Nav entrance */
@keyframes nav-slide {
  from { transform: translateY(-100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.nav { animation: nav-slide 0.6s ease-out 0.2s both; }

/* Hero background slow zoom */
@keyframes hero-zoom {
  0% { transform: scale(1); }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); }
}
.hero::before { animation: hero-zoom 20s ease-in-out infinite; }

/* Hero content sequence entrance */
@keyframes hero-text-in {
  from { opacity: 0; transform: translateY(30px); filter: blur(8px); }
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}
.hero-tag { animation: hero-text-in 0.8s ease-out 0.5s both; }
.hero h1 { animation: hero-text-in 0.8s ease-out 0.9s both; }
.hero p { animation: hero-text-in 0.8s ease-out 1.2s both; }
.hero-cta { animation: hero-text-in 0.8s ease-out 1.5s both; }

/* Gold shine sweep on hero */
@keyframes shine-sweep {
  0% { left: -100%; opacity: 0; }
  50% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}
.hero-content::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: -100%;
  width: 60%;
  background: linear-gradient(90deg, transparent, rgba(201,169,110,0.08), transparent);
  transform: skewX(-20deg);
  animation: shine-sweep 4s ease-in-out 2s infinite;
  pointer-events: none;
}

/* Scroll-triggered animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

.fade-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-left.visible { opacity: 1; transform: translateX(0); }

.fade-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-right.visible { opacity: 1; transform: translateX(0); }

.fade-scale {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-scale.visible { opacity: 1; transform: scale(1); }

/* Stagger delays (larger intervals for cascade feel) */
.fade-in-delay-1, .stagger-1 { transition-delay: 0.15s; }
.fade-in-delay-2, .stagger-2 { transition-delay: 0.3s; }
.fade-in-delay-3, .stagger-3 { transition-delay: 0.45s; }
.stagger-4 { transition-delay: 0.6s; }
.stagger-5 { transition-delay: 0.75s; }

/* 3D Card hover */
.card, .product-card, .ind-card, .ccard {
  transform-style: preserve-3d;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), border-color 0.3s, box-shadow 0.4s;
}
.card:hover, .product-card:hover {
  transform: perspective(1000px) rotateX(-2deg) rotateY(2deg) translateY(-6px);
  box-shadow: 0 20px 60px rgba(201,169,110,0.12), 0 8px 24px rgba(0,0,0,0.4);
}
.ind-card:hover, .ccard:hover {
  transform: perspective(800px) rotateX(-1.5deg) translateY(-4px);
  box-shadow: 0 12px 40px rgba(201,169,110,0.1);
}

/* Card top gold glow */
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light), var(--gold));
  transform: scaleX(0);
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  box-shadow: 0 0 12px rgba(201,169,110,0.5);
}
.card:hover::before { transform: scaleX(1); }

/* Image card hover zoom + brightness */
.img-card img {
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), filter 0.5s;
}
.img-card:hover img {
  transform: scale(1.08);
  filter: brightness(1.1);
}

/* Banner image parallax (desktop only) */
@media (min-width: 769px) {
  .hero::before {
    background-attachment: fixed;
  }
  .full-width-img img {
    background-attachment: fixed;
  }
}

/* Button shine sweep */
@keyframes btn-shine {
  0% { left: -100%; }
  100% { left: 200%; }
}
.btn, .btn-primary {
  position: relative;
  overflow: hidden;
}
.btn::after, .btn-primary::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: -100%;
  width: 50%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: skewX(-20deg);
  transition: none;
}
.btn:hover::after, .btn-primary:hover::after {
  animation: btn-shine 0.6s ease-out;
}
.btn:hover {
  box-shadow: 0 8px 30px rgba(201,169,110,0.4), 0 0 20px rgba(201,169,110,0.2);
}

/* Nav active link underline */
.nav-links a {
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%; right: 50%;
  height: 2px;
  background: var(--gold);
  transition: left 0.3s, right 0.3s;
}
.nav-links a.active::after,
.nav-links a:hover::after {
  left: 16px; right: 16px;
}

/* Hamburger to X animation */
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Stat numbers glow */
.stat .num {
  text-shadow: 0 0 20px rgba(201,169,110,0.3);
}

/* Floating particles (decorative) */
@keyframes float-particle {
  0%, 100% { transform: translateY(0) translateX(0); opacity: 0.4; }
  25% { transform: translateY(-15px) translateX(5px); opacity: 0.7; }
  50% { transform: translateY(-25px) translateX(-3px); opacity: 0.5; }
  75% { transform: translateY(-10px) translateX(8px); opacity: 0.6; }
}
.hero-content::before {
  content: '';
  position: absolute;
  bottom: -40px; left: 20%;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gold);
  animation: float-particle 6s ease-in-out infinite;
  pointer-events: none;
  box-shadow:
    60px -20px 0 var(--gold),
    120px -40px 0 rgba(201,169,110,0.5),
    200px -10px 0 rgba(201,169,110,0.3),
    280px -30px 0 var(--gold),
    350px -15px 0 rgba(201,169,110,0.4);
}

/* Smooth scroll progress bar */
@keyframes progress-grow {
  from { transform: scaleX(0); }
}

/* Section title reveal */
.section h2, .section-title-left {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.section h2.visible, .section-title-left.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 48px 0;
  font-size: 13px;
  color: var(--white-dim);
}
.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  padding: 0;
  margin: 0;
}
.breadcrumb li { display: flex; align-items: center; }
.breadcrumb li + li::before {
  content: '/';
  margin: 0 8px;
  color: var(--gold);
  font-size: 11px;
}
.breadcrumb a {
  color: var(--white-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .current { color: var(--white-dim); }

/* ===== ARTICLE CONTENT ===== */
.article-content {
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.9;
  color: var(--white-muted);
}
.article-content h2 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.6rem;
  color: var(--white);
  margin: 48px 0 16px;
  text-align: left;
}
.article-content h3 {
  font-size: 1.15rem;
  color: var(--gold);
  margin: 32px 0 12px;
}
.article-content p { margin-bottom: 18px; }
.article-content ul, .article-content ol {
  margin: 0 0 20px 20px;
  color: var(--white-muted);
}
.article-content li { margin-bottom: 8px; }
.article-content strong { color: var(--white); }
.article-content a { color: var(--gold); text-decoration: underline; }
.article-content a:hover { color: var(--white); }
.article-content blockquote {
  border-left: 3px solid var(--gold);
  padding: 12px 20px;
  margin: 24px 0;
  background: rgba(201,169,110,0.05);
  color: var(--white-dim);
  font-style: italic;
}
.article-content .product-table { margin: 24px 0; }

/* Blog card grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
  margin-top: 30px;
}
.blog-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.3s, border-color 0.3s;
}
.blog-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
}
.blog-card h3 { margin: 0 0 10px; font-size: 1.1rem; }
.blog-card h3 a { color: var(--white); text-decoration: none; }
.blog-card h3 a:hover { color: var(--gold); }
.blog-card .meta { font-size: 12px; color: var(--white-dim); margin-bottom: 12px; }
.blog-card p { color: var(--white-muted); font-size: 14px; line-height: 1.6; margin: 0; }

/* Project cards */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
  margin-top: 30px;
}
.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.3s, border-color 0.3s;
}
.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
}
.project-card .proj-industry {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gold);
  margin-bottom: 10px;
}
.project-card h3 { font-size: 1.1rem; margin: 0 0 12px; color: var(--white); }
.project-card p { color: var(--white-muted); font-size: 14px; line-height: 1.6; margin: 0 0 14px; }
.project-card .proj-specs {
  font-size: 13px;
  color: var(--white-dim);
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 12px;
}
.project-card .proj-specs strong { color: var(--white-muted); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav { padding: 14px 20px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--dark);
    flex-direction: column;
    padding: 16px 20px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .hero { min-height: 70vh; padding: 80px 20px 70px; }
  .hero-sub { padding: 60px 20px 50px; }
  .section { padding: 60px 20px; }
  .section-alt { padding: 60px 20px; }
  .highlights { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .contact-cards { grid-template-columns: 1fr; }
  .row2 { grid-template-columns: 1fr; }
  .footer { grid-template-columns: 1fr; padding: 40px 20px; }
  .grid2 { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .global-row { grid-template-columns: 1fr 1fr; }
  .hero-cta { flex-direction: column; align-items: center; }
  .cta-section { padding: 60px 20px; }
  .image-grid-3 { grid-template-columns: 1fr; }
  .image-grid-4 { grid-template-columns: 1fr 1fr; }
  .banner-img img { height: 200px; }
  .img-card img { height: 180px; }
  .breadcrumb { padding: 10px 20px 0; font-size: 12px; }
  .blog-grid { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .article-content h2 { font-size: 1.3rem; }
}