:root {
  --primary-red: #EF4444;
  --primary-blue: #1D4ED8;
  --accent-blue: #2563EB;
  --bg: #F8FAFC;
  --surface: #FFFFFF;
  --text: #0F172A;
  --text-muted: #64748B;
  --border: #E2E8F0;
  --wa-green: #25D366;
}

* { 
  box-sizing: border-box; 
  margin: 0; 
  padding: 0; 
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; 
}

body { 
  background-color: var(--bg); 
  color: var(--text); 
  line-height: 1.5; 
}

/* Top Strip */
.top-strip { 
  background: #0F172A; 
  color: #94A3B8; 
  font-size: 0.75rem; 
  padding: 6px 1.5rem; 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
}
.top-strip a { 
  color: #60A5FA; 
  text-decoration: none; 
  font-weight: 600; 
}

/* Nav */
header { 
  background: var(--surface); 
  border-bottom: 2px solid #EFF6FF; 
  position: sticky; 
  top: 0; 
  z-index: 100; 
  box-shadow: 0 2px 10px rgba(0,0,0,0.03); 
}
.nav-inner { 
  max-width: 1150px; 
  margin: 0 auto; 
  padding: 0.9rem 1.5rem; 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
}

.brand-container { 
  display: flex; 
  align-items: center; 
  gap: 10px; 
  text-decoration: none; 
}
.gs-balloons { 
  display: flex; 
  align-items: flex-end; 
}
.gs-b-red { 
  width: 22px; 
  height: 28px; 
  background: var(--primary-red); 
  border-radius: 50% 50% 45% 45%; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  color: #fff; 
  font-weight: 900; 
  font-size: 13px; 
  transform: rotate(-8deg); 
  box-shadow: inset -2px -2px 4px rgba(0,0,0,0.2); 
}
.gs-b-blue { 
  width: 18px; 
  height: 24px; 
  background: var(--primary-blue); 
  border-radius: 50% 50% 45% 45%; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  color: #fff; 
  font-weight: 900; 
  font-size: 11px; 
  margin-left: -5px; 
  transform: rotate(10deg); 
  box-shadow: inset -2px -2px 4px rgba(0,0,0,0.2); 
}
.brand-text { 
  display: flex; 
  flex-direction: column; 
  line-height: 1; 
}
.txt-globo { 
  font-size: 1.25rem; 
  font-weight: 900; 
  color: var(--primary-blue); 
  letter-spacing: 0.5px; 
}
.txt-studio { 
  font-size: 0.9rem; 
  font-weight: 800; 
  color: var(--primary-red); 
  letter-spacing: 1.5px; 
}

nav { 
  display: flex; 
  align-items: center; 
  gap: 1.25rem; 
}
nav a { 
  text-decoration: none; 
  color: var(--text-muted); 
  font-size: 0.85rem; 
  font-weight: 600; 
  transition: color 0.2s; 
}
nav a:hover { 
  color: var(--primary-blue); 
}
.btn-wa-header { 
  background: var(--wa-green); 
  color: #fff !important; 
  padding: 7px 14px; 
  border-radius: 20px; 
  font-size: 0.8rem; 
  font-weight: 700; 
  display: inline-flex; 
  align-items: center; 
  gap: 6px; 
}

/* Hero */
.hero { 
  max-width: 900px; 
  margin: 3.5rem auto 2.5rem; 
  text-align: center; 
  padding: 0 1.5rem; 
}
.badge-hero { 
  background: #EFF6FF; 
  color: var(--primary-blue); 
  border: 1px solid #BFDBFE; 
  font-size: 0.75rem; 
  font-weight: 800; 
  text-transform: uppercase; 
  letter-spacing: 1px; 
  padding: 4px 12px; 
  border-radius: 20px; 
  display: inline-block; 
  margin-bottom: 1rem; 
}
.hero h1 { 
  font-size: clamp(2rem, 4vw, 3rem); 
  font-weight: 900; 
  line-height: 1.15; 
  color: #0F172A; 
  margin-bottom: 1rem; 
}
.hero h1 span { 
  color: var(--primary-red); 
}
.hero p { 
  font-size: 1.05rem; 
  color: var(--text-muted); 
  max-width: 680px; 
  margin: 0 auto 2rem; 
}

/* Tabulador de Precios */
.pricing-wrap { 
  max-width: 1100px; 
  margin: 0 auto 3.5rem; 
  padding: 0 1.5rem; 
}
.tier-grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); 
  gap: 1.25rem; 
}
.tier-card { 
  background: var(--surface); 
  border: 2px solid var(--border); 
  border-radius: 10px; 
  padding: 1.5rem; 
  text-align: center; 
  transition: all 0.2s; 
  position: relative; 
}
.tier-card:hover { 
  transform: translateY(-4px); 
  border-color: var(--primary-blue); 
}
.tier-popular { 
  border-color: var(--primary-red); 
  background: #FEF2F2; 
}
.tier-popular-tag { 
  position: absolute; 
  top: -40px; 
  left: 50%; 
  transform: translateX(-50%); 
  background: var(--primary-red); 
  color: #fff; 
  font-size: 0.65rem; 
  font-weight: 800; 
  text-transform: uppercase; 
  padding: 2px 10px; 
  border-radius: 12px; 
}
.tier-qty { 
  font-size: 1.1rem; 
  font-weight: 800; 
  color: #0F172A; 
  margin-bottom: 0.5rem; 
}
.tier-price { 
  font-size: 1.75rem; 
  font-weight: 900; 
  color: var(--primary-blue); 
  margin-bottom: 0.25rem; 
}
.tier-unit { 
  font-size: 0.8rem; 
  color: var(--text-muted); 
  font-weight: 600; 
  margin-bottom: 1rem; 
}
.tier-note { 
  font-size: 0.75rem; 
  color: #64748B; 
  border-top: 1px solid var(--border); 
  padding-top: 0.75rem; 
}

/* Banner Especial Número 40 */
.special-banner { 
  max-width: 1100px; 
  margin: 0 auto 4rem; 
  padding: 0 1.5rem; 
}
.banner-box { 
  background: linear-gradient(135deg, #1E293B, #0F172A); 
  color: #fff; 
  border-radius: 12px; 
  padding: 2rem; 
  display: grid; 
  grid-template-columns: 1.2fr 1fr; 
  gap: 2rem; 
  align-items: center; 
  border-left: 6px solid var(--primary-red); 
}
@media(max-width: 750px) { 
  .banner-box { grid-template-columns: 1fr; } 
}
.banner-box h2 { 
  font-size: 1.5rem; 
  font-weight: 800; 
  margin-bottom: 0.5rem; 
}
.banner-box p { 
  font-size: 0.9rem; 
  color: #CBD5E1; 
  line-height: 1.5; 
}
.pricing-rule { 
  background: rgba(255,255,255,0.06); 
  border: 1px solid rgba(255,255,255,0.12); 
  padding: 1.25rem; 
  border-radius: 8px; 
}
.rule-item { 
  margin-bottom: 0.75rem; 
  font-size: 0.88rem; 
}
.rule-item strong { 
  color: #60A5FA; 
}

/* Cotizador Automático */
.calc-box { 
  max-width: 850px; 
  margin: 0 auto 5rem; 
  background: var(--surface); 
  border: 1px solid var(--border); 
  border-radius: 12px; 
  padding: 2.5rem 2rem; 
  box-shadow: 0 4px 15px rgba(0,0,0,0.03); 
}
.calc-box h2 { 
  font-size: 1.5rem; 
  font-weight: 800; 
  text-align: center; 
  color: #0F172A; 
  margin-bottom: 0.5rem; 
}
.calc-box p { 
  font-size: 0.9rem; 
  text-align: center; 
  color: var(--text-muted); 
  margin-bottom: 2rem; 
}
.input-row { 
  display: grid; 
  grid-template-columns: 1fr 1fr; 
  gap: 1.25rem; 
  margin-bottom: 1.5rem; 
}
@media(max-width: 650px) { 
  .input-row { grid-template-columns: 1fr; } 
}
label { 
  display: block; 
  font-size: 0.75rem; 
  font-weight: 800; 
  text-transform: uppercase; 
  color: #334155; 
  margin-bottom: 6px; 
}
input, select { 
  width: 100%; 
  padding: 10px 12px; 
  border: 1px solid var(--border); 
  border-radius: 6px; 
  font-size: 0.95rem; 
}
.checkbox-wrap { 
  grid-column: span 2; 
  display: flex; 
  align-items: center; 
  gap: 8px; 
  font-size: 0.85rem; 
  color: #475569; 
  margin-top: -5px; 
}
.checkbox-wrap input { 
  width: auto; 
}
.btn-calc { 
  width: 100%; 
  background: var(--primary-blue); 
  color: #fff; 
  padding: 12px; 
  border: none; 
  border-radius: 6px; 
  font-size: 0.9rem; 
  font-weight: 800; 
  cursor: pointer; 
  text-transform: uppercase; 
  transition: background 0.2s; 
}
.btn-calc:hover { 
  background: #1E40AF; 
}

.calc-output { 
  margin-top: 1.5rem; 
  padding: 1.25rem; 
  border-radius: 8px; 
  background: #F0FDF4; 
  border: 1px solid #BBF7D0; 
  display: none; 
}
.calc-output strong { 
  font-size: 1.2rem; 
  color: #166534; 
  display: block; 
  margin-bottom: 4px; 
}
.calc-output p { 
  text-align: left; 
  font-size: 0.85rem; 
  color: #14532D; 
  margin-bottom: 1rem; 
}
.btn-wa-action { 
  background: var(--wa-green); 
  color: #fff; 
  text-decoration: none; 
  padding: 9px 18px; 
  border-radius: 6px; 
  font-weight: 700; 
  font-size: 0.85rem; 
  display: inline-flex; 
  align-items: center; 
  gap: 8px; 
}

/* Catálogo de Inventario */
.inventory-section { 
  max-width: 1100px; 
  margin: 0 auto 5rem; 
  padding: 0 1.5rem; 
}
.sec-header { 
  text-align: center; 
  margin-bottom: 2.5rem; 
}
.sec-header h2 { 
  font-size: 1.8rem; 
  font-weight: 900; 
  color: #0F172A; 
}
.sec-header p { 
  font-size: 0.9rem; 
  color: var(--text-muted); 
}

.inventory-grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); 
  gap: 1.5rem; 
}
.inv-card { 
  background: var(--surface); 
  border: 1px solid var(--border); 
  border-radius: 8px; 
  overflow: hidden; 
  display: flex; 
  flex-direction: column; 
  transition: transform 0.2s; 
}
.inv-card:hover { 
  transform: translateY(-3px); 
}

.card-img-wrap { 
  width: 100%; 
  height: 400px; 
  background: #E2E8F0; 
  overflow: hidden; 
  position: relative; 
}
.card-img-wrap img { 
  width: 100%; 
  height: 100%; 
  object-fit: cover; 
}

.card-content { 
  padding: 1.25rem; 
  flex: 1; 
  display: flex; 
  flex-direction: column; 
  justify-content: space-between; 
}
.inv-tag { 
  font-size: 0.7rem; 
  font-weight: 800; 
  text-transform: uppercase; 
  color: var(--primary-blue); 
  margin-bottom: 0.4rem; 
  display: block; 
}
.inv-card h3 { 
  font-size: 1.15rem; 
  font-weight: 800; 
  margin-bottom: 0.5rem; 
  color: #0F172A; 
}
.inv-card p { 
  font-size: 0.85rem; 
  color: var(--text-muted); 
  margin-bottom: 1rem; 
  line-height: 1.4; 
}
.color-bullets { 
  font-size: 0.75rem; 
  font-family: monospace; 
  color: #475569; 
  background: #F1F5F9; 
  padding: 6px 10px; 
  border-radius: 4px; 
}

/* Footer */
footer { 
  border-top: 1px solid var(--border); 
  background: var(--surface); 
  padding: 3rem 1.5rem; 
  text-align: center; 
  font-size: 0.85rem; 
  color: var(--text-muted); 
}
footer a { 
  color: var(--primary-blue); 
  text-decoration: none; 
  font-weight: 600; 
}