/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

/* BACKGROUND */
body {
  height: 100vh;
  width: 100vw;
  background: url("assets/zec_bg.png") center center no-repeat;
  background-size: cover;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  animation: fadeIn 2s ease-in forwards;
}

/* SOFT VIGNETTE + DEPTH */
.overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(0,0,0,0) 50%, rgba(0,0,0,0.6) 100%);
  z-index: 1;
}

/* HERO */
.hero {
  text-align: center;
  position: relative;
  z-index: 3;
  color: #fff;
  animation: riseIn 2.5s ease-out forwards;
}

.headline {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-shadow: 0 0 30px rgba(255, 222, 96, 0.8), 0 0 80px rgba(255, 208, 0, 0.6);
  line-height: 1.2;
  animation: shimmer 6s ease-in-out infinite;
}

.headline .highlight {
  color: #fff6c3;
  text-shadow: 0 0 20px #ffd900, 0 0 60px #ffea89;
}

.tagline {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 1rem;
  animation: fadeSlide 3s ease forwards;
}

/* BUTTONS */
.buttons {
  margin-top: 2.5rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 28px;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  font-size: 1rem;
  transition: all 0.3s ease;
  position: relative;
  z-index: 5;
}

.btn.gold {
  background: linear-gradient(90deg, #ffb700, #ffd700);
  color: #1a1a1a;
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.btn.gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 40px rgba(255, 215, 0, 0.8);
}

.btn.glass {
  background: rgba(255, 255, 255, 0.08);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.btn.glass:hover {
  background: rgba(255, 255, 255, 0.25);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
  transform: translateY(-3px);
}

/* PARTICLE LAYER */
#particles {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

/* ANIMATIONS */
@keyframes fadeIn {
  from { opacity: 0; transform: scale(1.02); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0%, 100% { text-shadow: 0 0 25px #ffd900, 0 0 60px rgba(255, 208, 0, 0.6); }
  50% { text-shadow: 0 0 50px #fff6b3, 0 0 120px #ffd900; }
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .headline {
    font-size: 2rem;
  }

  .tagline {
    font-size: 1rem;
  }

  .btn {
    font-size: 0.9rem;
    padding: 10px 20px;
  }
}