html, body { height: 100%; margin: 0; scroll-behavior: smooth; }
html { scroll-margin-top: 80px; }
* { box-sizing: border-box; }
.font-heading { font-family: 'Outfit', sans-serif; }
.font-mono { font-family: 'Space Mono', monospace; }
.font-racing { 
  font-family: 'MuseoModerno', sans-serif; 
  letter-spacing: 0.05em;
  font-weight: 400;
  font-size: 1.05em;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes lineGrow {
  from { width: 0; }
  to { width: 100%; }
}
.anim-fade-up { animation: fadeUp 0.8s ease-out both; }
.anim-fade-up-d1 { animation: fadeUp 0.8s ease-out 0.15s both; }
.anim-fade-up-d2 { animation: fadeUp 0.8s ease-out 0.3s both; }
.anim-slide-in { animation: slideIn 0.7s ease-out 0.2s both; }

.hero-grid {
  background-image:
    linear-gradient(rgba(224,210,179,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(224,210,179,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
}

.card-hover {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.nav-link {
  position: relative;
  transition: color 0.3s;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: #e0d2b3;
  transition: width 0.3s ease;
}
.nav-link:hover::after {
  width: 100%;
}

/* Sponsor scrolling */
.sponsor-track {
  display: flex;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}
.sponsor-slide {
  display: flex;
  flex-shrink: 0;
  animation: scrollLeft 25s linear infinite;
}
.sponsor-track:hover .sponsor-slide {
  animation-play-state: paused;
}
@keyframes scrollLeft {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Sponsor card with tier glow - doubled size */
.sponsor-card {
  flex-shrink: 0;
  width: 440px;
  margin-right: 32px;
  background: #1e1e1e;
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.3s ease;
}
.sponsor-card:hover {
  transform: scale(1.02);
}
.sponsor-logo-area {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sponsor-name {
  padding: 24px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Gold tier - top glow */
.sponsor-gold {
  border: 1px solid #b8860b;
  box-shadow: 0 0 20px rgba(184, 134, 11, 0.3), inset 0 1px 0 rgba(255, 215, 0, 0.2);
}
.sponsor-gold .sponsor-name {
  background: linear-gradient(180deg, rgba(184, 134, 11, 0.15) 0%, rgba(184, 134, 11, 0.05) 100%);
  color: #ffd700;
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

/* Silver tier - middle glow */
.sponsor-silver {
  border: 1px solid #71706e;
  box-shadow: 0 0 20px rgba(169, 169, 169, 0.3), inset 0 1px 0 rgba(192, 192, 192, 0.2);
}
.sponsor-silver .sponsor-name {
  background: linear-gradient(180deg, rgba(169, 169, 169, 0.15) 0%, rgba(169, 169, 169, 0.05) 100%);
  color: #c0c0c0;
  text-shadow: 0 0 10px rgba(192, 192, 192, 0.5);
}

/* Bronze tier - bottom glow */
.sponsor-bronze {
  border: 1px solid #8b5a2b;
  box-shadow: 0 0 20px rgba(139, 90, 43, 0.3), inset 0 1px 0 rgba(205, 127, 50, 0.2);
}
.sponsor-bronze .sponsor-name {
  background: linear-gradient(180deg, rgba(139, 90, 43, 0.15) 0%, rgba(139, 90, 43, 0.05) 100%);
  color: #cd7f32;
  text-shadow: 0 0 10px rgba(205, 127, 50, 0.5);
}

.scroll-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.scroll-section.visible {
  opacity: 1;
  transform: translateY(0);
}

.stripe-accent {
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 8px,
    rgba(224,210,179,0.04) 8px,
    rgba(224,210,179,0.04) 16px
  );
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #111111; }
::-webkit-scrollbar-thumb { background: #434343; border-radius: 3px; }