:root {
  --copper: #B87333;
  --copper-dark: #8B5620;
  --copper-light: #D4956A;
  --aluminium: #A8A9AD;
  --aluminium-dark: #6E6F72;
  --aluminium-light: #D8D9DB;
  --dark: #1A1A1A;
  --dark2: #2C2C2C;
  --mid: #4A4A4A;
  --light: #F7F5F2;
  --white: #FFFFFF;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Barlow', sans-serif; color: var(--dark); background: var(--white); }

/* SKIP LINK */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--copper);
  color: white;
  padding: 8px 16px;
  z-index: 1000;
  transition: top 0.3s;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus {
  top: 0;
}

/* ACCESSIBILITY FOCUS STYLES */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
}

/* NAV */
nav {
  position: fixed; top: 0; width: 100%; z-index: 100;
  background: rgba(26,26,26,0.97); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5%; height: 70px;
  border-bottom: 1px solid rgba(184,115,51,0.3);
}
.nav-logo {
  display: flex; align-items: center; gap: 12px;
}
.nav-hex {
  width: 36px; height: 36px; position: relative;
}
.nav-logo-text {
  font-family: 'Playfair Display', serif;
  color: var(--copper); font-size: 20px; font-weight: 700; letter-spacing: 2px;
}
.nav-logo-text span { color: var(--aluminium); font-weight: 400; }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a {
  color: var(--aluminium-light); text-decoration: none;
  font-size: 13px; letter-spacing: 2px; text-transform: uppercase;
  font-weight: 500; transition: color 0.3s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--copper);
}

/* HAMBURGER MENU BUTTON */
.menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
  flex-direction: column;
  gap: 6px;
}
.menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--aluminium-light);
  transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
}

/* HERO */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 40%, #2a1a0a 100%);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 100px 5% 60px; position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(184,115,51,0.12) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(168,169,173,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.hero-eyebrow {
  color: var(--copper); font-size: 11px; letter-spacing: 5px;
  text-transform: uppercase; margin-bottom: 24px; font-weight: 500;
}
.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(52px, 8vw, 96px);
  font-weight: 900; line-height: 1;
  color: var(--white); letter-spacing: -1px; margin-bottom: 8px;
  position: relative;
}
.hero-title span { color: var(--copper); }
.hero-subtitle {
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 400; color: var(--aluminium); letter-spacing: 8px;
  text-transform: uppercase; margin-bottom: 32px;
}
.hero-divider {
  display: flex; align-items: center; gap: 16px; margin-bottom: 28px;
}
.hero-divider-line { height: 1px; width: 60px; background: var(--copper); opacity: 0.5; }
.hero-divider-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--copper); }
.hero-tagline {
  font-size: 15px; letter-spacing: 4px; text-transform: uppercase;
  color: var(--aluminium); font-weight: 300; margin-bottom: 56px;
}
.hero-cta-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  background: var(--copper); color: white;
  padding: 14px 36px; border: none; cursor: pointer;
  font-family: 'Barlow', sans-serif; font-size: 13px;
  letter-spacing: 2px; text-transform: uppercase; font-weight: 600;
  text-decoration: none; display: inline-block;
  transition: background 0.3s, transform 0.2s;
}
.btn-primary:hover { background: var(--copper-dark); transform: translateY(-2px); }
.btn-secondary {
  background: transparent; color: var(--aluminium-light);
  padding: 14px 36px; border: 1px solid var(--aluminium);
  cursor: pointer; font-family: 'Barlow', sans-serif; font-size: 13px;
  letter-spacing: 2px; text-transform: uppercase; font-weight: 600;
  text-decoration: none; display: inline-block; transition: all 0.3s;
}
.btn-secondary:hover { border-color: var(--copper); color: var(--copper); }
.hero-bars {
  position: absolute; bottom: 0; left: 0; right: 0;
  display: flex; height: 6px;
}
.hero-bars span { flex: 1; }
.hero-bars span:nth-child(odd) { background: var(--copper); }
.hero-bars span:nth-child(even) { background: var(--aluminium-dark); }

/* METALS STRIP */
.metals-strip {
  background: var(--dark2); padding: 20px 5%;
  display: flex; align-items: center; justify-content: center;
  gap: 48px; flex-wrap: wrap;
}
.metal-tag {
  display: flex; align-items: center; gap: 10px;
  color: var(--aluminium); font-size: 12px; letter-spacing: 3px;
  text-transform: uppercase; font-weight: 500;
}
.metal-tag-dot { width: 10px; height: 10px; border-radius: 50%; }
.metal-tag-dot.copper { background: var(--copper); }
.metal-tag-dot.aluminium { background: var(--aluminium); }
.metal-tag-dot.other { background: #888; }

/* SECTIONS COMMON */
section { padding: 100px 5%; }
.section-label {
  font-size: 11px; letter-spacing: 5px; text-transform: uppercase;
  color: var(--copper); font-weight: 600; margin-bottom: 16px;
}
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(32px, 4vw, 52px); font-weight: 700;
  line-height: 1.15; margin-bottom: 24px;
}
.section-body { font-size: 16px; color: var(--mid); line-height: 1.8; max-width: 600px; }

/* ABOUT */
.about { background: var(--light); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
  max-width: 1200px; margin: 0 auto;
}
.about-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2px;
  margin-top: 40px;
}
.stat-box {
  background: var(--dark); padding: 32px 24px;
}
.stat-box:nth-child(2) { background: var(--copper); }
.stat-box:nth-child(3) { background: var(--aluminium-dark); }
.stat-box:nth-child(4) { background: var(--dark2); }
.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 40px; font-weight: 900; color: white; line-height: 1;
  margin-bottom: 8px;
}
.stat-lbl { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: rgba(255,255,255,0.6); }
.about-visual {
  position: relative;
}
.about-hex-group {
  display: flex; flex-direction: column; align-items: center; gap: 0;
}
.hex-ring {
  width: 280px; height: 280px; border-radius: 50%;
  border: 2px solid var(--copper); opacity: 0.15;
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.hex-ring-2 {
  width: 200px; height: 200px; border-radius: 50%;
  border: 1px solid var(--aluminium); opacity: 0.2;
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.about-icon-box {
  width: 300px; height: 300px; background: var(--dark);
  display: flex; align-items: center; justify-content: center;
  position: relative; margin: 0 auto;
}
.about-icon-inner {
  text-align: center;
}
.about-icon-inner svg { width: 80px; height: 80px; margin-bottom: 16px; }
.about-icon-text {
  font-family: 'Playfair Display', serif; color: white;
  font-size: 22px; font-weight: 700; letter-spacing: 2px;
}
.about-icon-sub { color: var(--aluminium); font-size: 11px; letter-spacing: 3px; text-transform: uppercase; }

/* BUSINESS */
.business { background: var(--white); }
.business-inner { max-width: 1200px; margin: 0 auto; }
.business-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; margin-top: 60px;
}
.biz-card {
  padding: 48px 32px; background: var(--light);
  border-top: 3px solid transparent; transition: border-color 0.3s, transform 0.3s;
  cursor: default;
}
.biz-card:hover { border-top-color: var(--copper); transform: translateY(-4px); }
.biz-icon {
  width: 48px; height: 48px; margin-bottom: 24px;
}
.biz-title {
  font-family: 'Playfair Display', serif; font-size: 20px;
  font-weight: 700; margin-bottom: 12px; color: var(--dark);
}
.biz-body { font-size: 14px; color: var(--mid); line-height: 1.8; }

/* METALS WE TRADE */
.metals { background: var(--dark); padding: 100px 5%; }
.metals-inner { max-width: 1200px; margin: 0 auto; }
.metals .section-title { color: white; }
.metals .section-label { color: var(--copper); }
.metals-cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 60px;
}
.metal-card {
  padding: 40px 32px; border: 1px solid rgba(255,255,255,0.08);
  position: relative; overflow: hidden; transition: border-color 0.3s;
}
.metal-card:hover { border-color: var(--copper); }
.metal-card-accent {
  position: absolute; top: 0; left: 0; width: 100%; height: 3px;
}
.metal-card-name {
  font-family: 'Playfair Display', serif; font-size: 28px;
  font-weight: 700; color: white; margin-bottom: 8px;
}
.metal-card-symbol {
  font-size: 13px; letter-spacing: 3px; text-transform: uppercase;
  margin-bottom: 20px; font-weight: 500;
}
.metal-card-desc { font-size: 14px; color: rgba(255,255,255,0.55); line-height: 1.8; }



/* CONTACT */
.contact { background: var(--dark2); padding: 100px 5%; }
.contact-inner {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start;
}
.contact .section-title { color: white; }
.contact .section-body { color: var(--aluminium); }
.contact-info { margin-top: 40px; display: flex; flex-direction: column; gap: 24px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-icon {
  width: 40px; height: 40px; background: rgba(184,115,51,0.15);
  border: 1px solid rgba(184,115,51,0.3);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-icon svg { width: 18px; height: 18px; }
.contact-item-label { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--copper); margin-bottom: 4px; }
.contact-item-value { font-size: 14px; color: rgba(255,255,255,0.75); line-height: 1.6; }

/* CONTACT CARD */
.contact-card {
  background: rgba(255,255,255,0.04);
  padding: 40px;
  border: 1px solid rgba(255,255,255,0.08);
}

/* WHATSAPP CTA BUTTON */
.btn-whatsapp {
  background: #25D366;
  color: #FFFFFF;
  padding: 14px 36px;
  border: none;
  cursor: pointer;
  font-family: 'Barlow', sans-serif;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  transition: background 0.3s, transform 0.2s;
  margin-top: 28px;
}
.btn-whatsapp:hover {
  background: #128C7E;
  transform: translateY(-2px);
  color: #FFFFFF;
}
.btn-whatsapp svg {
  width: 20px;
  height: 20px;
}

/* FOOTER */
footer {
  background: #0f0f0f; padding: 60px 5% 32px;
  border-top: 1px solid rgba(184,115,51,0.2);
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px; margin-bottom: 48px;
}
.footer-brand-name {
  font-family: 'Playfair Display', serif; font-size: 24px;
  color: var(--copper); font-weight: 700; letter-spacing: 2px; margin-bottom: 4px;
}
.footer-brand-sub { font-size: 12px; letter-spacing: 4px; color: var(--aluminium); text-transform: uppercase; margin-bottom: 16px; }
.footer-tagline { font-size: 13px; color: rgba(255,255,255,0.4); line-height: 1.7; }
.footer-col-title { font-size: 11px; letter-spacing: 3px; text-transform: uppercase; color: var(--copper); margin-bottom: 16px; font-weight: 600; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255,255,255,0.45); text-decoration: none; font-size: 13px; transition: color 0.3s; }
.footer-links a:hover { color: var(--copper); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  max-width: 1200px; margin: 0 auto;
}
.footer-copy { font-size: 12px; color: rgba(255,255,255,0.25); }
.footer-reg { font-size: 12px; color: rgba(255,255,255,0.15); letter-spacing: 1px; }

/* SCROLL ANIMATIONS */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* MOBILE / RESPONSIVENESS */
@media (max-width: 768px) {
  .menu-btn {
    display: flex;
  }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(20, 20, 20, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 40px;
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    border-left: 1px solid rgba(184, 115, 51, 0.3);
    padding: 40px;
    z-index: 105;
    display: flex;
  }
  .nav-links.active {
    right: 0;
  }
  .menu-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background: var(--copper);
  }
  .menu-btn.active span:nth-child(2) {
    opacity: 0;
  }
  .menu-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background: var(--copper);
  }

  .about-grid, .contact-inner, .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .business-grid, .metals-cards { grid-template-columns: 1fr; }
  .about-icon-box { width: 220px; height: 220px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .stat-num { font-size: 28px; }
}