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

:root {
  --bg:     #0d0f12;
  --bg2:    #131619;
  --bg3:    #1a1e23;
  --accent: #3b82f6;
  --accent2:#60a5fa;
  --text:   #e8edf2;
  --muted:  #64748b;
  --border: rgba(255,255,255,0.06);
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; margin: 0; }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 48px;
  background: rgba(13,15,18,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  gap: 20px;
}
.nav-logo { display: flex; flex-direction: column; text-decoration: none; flex-shrink: 0; }
.nav-logo-text { font-size: 1.3rem; font-weight: 900; color: var(--text); letter-spacing: 0.12em; line-height: 1; }
.nav-logo-sub { font-size: 0.6rem; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; margin-top: 2px; }
.nav-links { display: flex; gap: 4px; list-style: none; flex-wrap: wrap; }
.nav-links a {
  color: rgba(232,237,242,0.55); text-decoration: none;
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.02em;
  padding: 6px 10px; border-radius: 6px; transition: all 0.2s;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--accent2); background: rgba(59,130,246,0.08); }
.nav-links a.active { color: var(--accent2); background: rgba(59,130,246,0.1); }
.nav-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-langs { display: flex; gap: 4px; }
.nav-langs button {
  font-size: 0.7rem; color: var(--muted); background: none;
  padding: 3px 7px; border-radius: 4px; border: 1px solid var(--border);
  cursor: pointer; font-family: inherit; transition: all 0.2s;
}
.nav-langs button:hover, .nav-langs button.active { color: var(--accent2); border-color: var(--accent); }
.nav-cta {
  background: var(--accent); color: #fff !important;
  padding: 8px 16px; border-radius: 6px;
  font-size: 0.78rem; font-weight: 600; text-decoration: none;
  transition: background 0.2s; white-space: nowrap;
}
.nav-cta:hover { background: var(--accent2) !important; }

/* ── PAGE HERO ── */
.page-hero {
  padding: 120px 48px 60px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 100% 50%, rgba(59,130,246,0.06) 0%, transparent 70%);
}
.page-hero-content { position: relative; max-width: 1140px; margin: 0 auto; }
.breadcrumb {
  font-size: 0.72rem; color: var(--muted);
  margin-bottom: 16px; display: flex; gap: 8px; align-items: center;
}
.breadcrumb a { color: var(--accent2); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: var(--border); }
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 900; letter-spacing: -0.02em; margin-bottom: 12px; }
.page-hero-sub { font-size: 1rem; color: var(--muted); max-width: 560px; }

/* ── MAIN HERO (homepage) ── */
#hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 120px 48px 80px; position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 100% 50%, rgba(59,130,246,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 0% 80%, rgba(59,130,246,0.04) 0%, transparent 60%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: 0.025;
  background-image: linear-gradient(#94a3b8 1px, transparent 1px), linear-gradient(90deg, #94a3b8 1px, transparent 1px);
  background-size: 40px 40px;
}
.hero-content { position: relative; max-width: 640px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 4px;
  border: 1px solid rgba(59,130,246,0.3);
  background: rgba(59,130,246,0.06);
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent2); margin-bottom: 28px;
}
.hero-badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 900; line-height: 1.08; letter-spacing: -0.02em; margin-bottom: 20px; }
h1 span { color: var(--accent2); }
.hero-sub { font-size: 1rem; color: var(--muted); max-width: 480px; margin-bottom: 36px; line-height: 1.7; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 48px; margin-top: 60px; flex-wrap: wrap; }
.stat-num { font-size: 2rem; font-weight: 900; color: var(--text); letter-spacing: -0.02em; }
.stat-num span { color: var(--accent2); }
.stat-label { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 2px; }

/* ── BUTTONS ── */
.btn-primary {
  background: var(--accent); color: #fff; padding: 13px 28px; border-radius: 6px;
  font-weight: 700; font-size: 0.88rem; text-decoration: none; transition: all 0.2s;
  border: none; cursor: pointer; font-family: inherit; display: inline-block;
}
.btn-primary:hover { background: var(--accent2); transform: translateY(-1px); }
.btn-secondary {
  background: transparent; color: var(--text); padding: 13px 28px; border-radius: 6px;
  font-weight: 600; font-size: 0.88rem; text-decoration: none; border: 1px solid var(--border);
  transition: all 0.2s; display: inline-block;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent2); }

/* ── SECTIONS ── */
section { padding: 80px 24px; }
.container { max-width: 1140px; margin: 0 auto; }
.section-label { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent2); margin-bottom: 14px; }
.section-title { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1.15; margin-bottom: 14px; }
.section-sub { font-size: 0.95rem; color: var(--muted); max-width: 500px; margin-bottom: 48px; }

/* ── PRODUCT CATEGORY GRID (homepage) ── */
.cat-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; background: var(--border);
  border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.cat-card {
  background: var(--bg2); padding: 0;
  transition: background 0.2s; text-decoration: none; color: inherit; display: block;
}
.cat-card:hover { background: var(--bg3); }
.cat-card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; display: block; filter: brightness(0.65) saturate(0.5); transition: filter 0.3s; }
.cat-card:hover .cat-card-img { filter: brightness(0.85) saturate(0.7); }
.cat-card-body { padding: 20px 22px 24px; }
.cat-card-num { font-size: 0.62rem; font-weight: 700; color: var(--accent); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 7px; }
.cat-card-title { font-size: 0.98rem; font-weight: 700; margin-bottom: 7px; }
.cat-card-desc { font-size: 0.8rem; color: var(--muted); line-height: 1.6; }
.cat-card-arrow { font-size: 0.8rem; color: var(--accent2); margin-top: 12px; display: block; font-weight: 600; }

/* ── SUBCATEGORY GRID (product pages) ── */
.sub-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2px; background: var(--border);
  border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.sub-card {
  background: var(--bg2); padding: 0;
  transition: background 0.2s; text-decoration: none; color: inherit; display: block;
}
.sub-card:hover { background: var(--bg3); }
.sub-card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; filter: brightness(0.7) saturate(0.5); transition: filter 0.3s; }
.sub-card:hover .sub-card-img { filter: brightness(0.9) saturate(0.7); }
.sub-card-body { padding: 20px 22px 24px; }
.sub-card-title { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; }
.sub-card-desc { font-size: 0.8rem; color: var(--muted); line-height: 1.6; }
.sub-card-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }
.sub-card-tag {
  font-size: 0.68rem; font-weight: 600; letter-spacing: 0.06em;
  padding: 3px 8px; border-radius: 4px;
  background: rgba(59,130,246,0.1); color: var(--accent2);
  border: 1px solid rgba(59,130,246,0.15);
}

/* ── BELT GRID ── */
.belt-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.belt-card {
  background: var(--bg2); padding: 22px 20px;
  transition: background 0.2s; cursor: default;
}
.belt-card:hover { background: var(--bg3); }
.belt-type { font-size: 1.1rem; font-weight: 900; color: var(--accent2); letter-spacing: -0.01em; margin-bottom: 6px; }
.belt-desc { font-size: 0.78rem; color: var(--muted); line-height: 1.55; }

/* ── WHY US ── */
.why-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.why-card { background: var(--bg2); padding: 28px 24px; }
.why-icon { font-size: 1.6rem; margin-bottom: 14px; }
.why-title { font-size: 0.9rem; font-weight: 700; margin-bottom: 7px; }
.why-desc { font-size: 0.78rem; color: var(--muted); line-height: 1.6; }

/* ── ABOUT ── */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.about-imgs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.about-img-main { grid-column: span 2; border-radius: 10px; overflow: hidden; }
.about-img-main img { width: 100%; aspect-ratio: 2/1; object-fit: cover; filter: brightness(0.75) saturate(0.6); }
.about-img-small { border-radius: 8px; overflow: hidden; }
.about-img-small img { width: 100%; aspect-ratio: 1; object-fit: cover; filter: brightness(0.75) saturate(0.6); }
.about-text p { color: rgba(232,237,242,0.62); margin-bottom: 18px; font-size: 0.92rem; line-height: 1.78; }
.about-features { display: flex; flex-direction: column; gap: 14px; margin-top: 28px; }
.about-feature { display: flex; gap: 12px; align-items: flex-start; }
.about-feature-icon { width: 34px; height: 34px; border-radius: 6px; background: rgba(59,130,246,0.1); display: flex; align-items: center; justify-content: center; font-size: 0.9rem; flex-shrink: 0; }
.about-feature-text strong { display: block; font-size: 0.84rem; font-weight: 600; margin-bottom: 1px; }
.about-feature-text span { font-size: 0.76rem; color: var(--muted); }

/* ── CONTACT ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-item-icon { width: 40px; height: 40px; border-radius: 8px; background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2); display: flex; align-items: center; justify-content: center; font-size: 1rem; flex-shrink: 0; }
.contact-item-label { font-size: 0.68rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 3px; }
.contact-item-value { font-size: 0.88rem; font-weight: 500; }
.contact-item-value a { color: var(--accent2); text-decoration: none; }
.contact-item-value a:hover { text-decoration: underline; }
form { display: flex; flex-direction: column; gap: 14px; }
input, textarea, select {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 6px;
  padding: 12px 14px; color: var(--text); font-family: inherit; font-size: 0.85rem;
  outline: none; transition: border-color 0.2s; width: 100%;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 110px; }
::placeholder { color: var(--muted); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
select option { background: var(--bg2); }

/* ── FOOTER ── */
footer {
  background: var(--bg2); border-top: 1px solid var(--border);
  padding: 32px 24px;
}
.footer-inner {
  max-width: 1140px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
}
.footer-logo { font-size: 1rem; font-weight: 900; color: var(--text); letter-spacing: 0.1em; }
.footer-copy { font-size: 0.74rem; color: var(--muted); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.74rem; color: var(--muted); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent2); }

/* ── WHATSAPP ── */
.whatsapp-btn {
  position: fixed; bottom: 26px; right: 26px; z-index: 200;
  width: 52px; height: 52px; border-radius: 50%; background: #25d366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 18px rgba(37,211,102,0.4); text-decoration: none; transition: transform 0.2s;
}
.whatsapp-btn:hover { transform: scale(1.08); }
.whatsapp-btn svg { width: 26px; height: 26px; fill: white; }

/* ── ANIMATIONS ── */
.fade-up { opacity: 0; transform: translateY(22px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-up.visible { opacity: 1; transform: none; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .cat-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  nav { padding: 12px 18px; }
  .nav-links { display: none; }
  #hero, .page-hero { padding-left: 20px; padding-right: 20px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .cat-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .belt-grid { grid-template-columns: 1fr 1fr; }
}