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

:root {
  /* Dune Color Palette */
  --spice-orange: #FF8C00;
  --desert-gold: #D4AF37;
  --sand-light: #F4E4BC;
  --sand-dark: #D2B48C;
  --desert-brown: #8B4513;
  --deep-brown: #4A2C17;
  --space-black: #0A0A0A;
  --warning-red: #DC143C;
  
  /* Gradients */
  --desert-gradient: linear-gradient(135deg, var(--space-black), var(--deep-brown), var(--desert-brown));
  --spice-gradient: linear-gradient(45deg, var(--spice-orange), var(--desert-gold));
  --sand-gradient: linear-gradient(180deg, var(--sand-light), var(--sand-dark));
  
  /* Typography */
  --font-primary: 'Orbitron', monospace;
  --font-secondary: 'Rajdhani', sans-serif;
}

body {
  font-family: var(--font-secondary);
  background: var(--desert-gradient);
  color: var(--sand-light);
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Animated Background Particles */
#particles-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background: var(--desert-gradient);
}

.desert-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: 
    radial-gradient(circle at 20% 80%, rgba(255, 140, 0, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

/* Header Styles */
.main-header {
  position: relative;
  text-align: center;
  padding: 4rem 2rem 2rem;
  perspective: 1000px;
  overflow: hidden;
}

.header-content {
  position: relative;
  z-index: 2;
}

.main-title {
  font-family: var(--font-primary);
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1rem;
  transform-style: preserve-3d;
}

.title-line {
  display: block;
  transform: translateZ(20px);
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.title-line.glow {
  background: var(--spice-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(255, 140, 0, 0.5);
  animation: spiceGlow 3s ease-in-out infinite alternate;
}

@keyframes spiceGlow {
  0% { 
    text-shadow: 0 0 30px rgba(255, 140, 0, 0.5), 0 0 50px rgba(212, 175, 55, 0.3);
    transform: translateZ(20px) scale(1);
  }
  100% { 
    text-shadow: 0 0 50px rgba(255, 140, 0, 0.8), 0 0 80px rgba(212, 175, 55, 0.5);
    transform: translateZ(30px) scale(1.02);
  }
}

.subtitle {
  font-size: 1.2rem;
  color: var(--desert-gold);
  font-weight: 300;
  letter-spacing: 3px;
  opacity: 0.8;
  transform: translateZ(10px);
}

.spice-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 140, 0, 0.3) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%) translateZ(-50px);
  animation: spiceOrb 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes spiceOrb {
  0%, 100% { 
    transform: translate(-50%, -50%) translateZ(-50px) scale(1); 
    opacity: 0.3;
  }
  50% { 
    transform: translate(-50%, -50%) translateZ(-30px) scale(1.2); 
    opacity: 0.5;
  }
}

/* Navigation */
.schedule-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(212, 175, 55, 0.3);
  padding: 1rem 0;
}

.nav-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.filter-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  color: var(--sand-light);
  border: 2px solid var(--desert-brown);
  padding: 0.8rem 1.5rem;
  font-family: var(--font-primary);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-style: preserve-3d;
  position: relative;
  overflow: hidden;
}

.filter-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--spice-gradient);
  transition: left 0.4s ease;
  z-index: -1;
}

.filter-btn:hover::before,
.filter-btn.active::before {
  left: 0;
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--space-black);
  border-color: var(--desert-gold);
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 25px rgba(255, 140, 0, 0.4);
}

.current-time {
  font-family: var(--font-primary);
  font-size: 1.1rem;
  color: var(--desert-gold);
  font-weight: 700;
}

/* Schedule Container */
.schedule-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 3rem 2rem;
  perspective: 1200px;
}

.schedule-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  transform-style: preserve-3d;
}

/* Event Card Styles */
.event-card {
  background: linear-gradient(135deg, 
    rgba(74, 44, 23, 0.9), 
    rgba(139, 69, 19, 0.8), 
    rgba(74, 44, 23, 0.9));
  border: 2px solid var(--desert-brown);
  border-radius: 15px;
  padding: 2rem;
  position: relative;
  transform-style: preserve-3d;
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: pointer;
  overflow: hidden;
  backdrop-filter: blur(5px);
}

.event-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--spice-gradient);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: -1;
}

.event-card:hover {
  transform: translateY(-10px) rotateX(5deg) rotateY(5deg) scale(1.02);
  border-color: var(--desert-gold);
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.4),
    0 0 30px rgba(255, 140, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.event-card:hover::before {
  opacity: 0.1;
}

.event-time {
  font-family: var(--font-primary);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--spice-orange);
  margin-bottom: 1rem;
  text-shadow: 0 0 10px rgba(255, 140, 0, 0.5);
  transform: translateZ(10px);
}

.event-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--desert-gold);
  line-height: 1.3;
  transform: translateZ(15px);
}

.event-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--sand-light);
  opacity: 0.9;
  margin-bottom: 1.5rem;
  transform: translateZ(5px);
}

.event-type {
  display: inline-block;
  background: rgba(255, 140, 0, 0.2);
  color: var(--spice-orange);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 1px solid rgba(255, 140, 0, 0.3);
  transform: translateZ(8px);
}

.event-location {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(0, 0, 0, 0.7);
  color: var(--sand-light);
  padding: 0.3rem 0.8rem;
  border-radius: 10px;
  font-size: 1rem;
  font-family: var(--font-secondary);
  transform: translateZ(20px);
}

.event-card.ceremony {
  border-left: 4px solid var(--desert-gold);
}

.event-card.training {
  border-left: 4px solid var(--warning-red);
}

.event-card.council {
  border-left: 4px solid var(--spice-orange);
}

.event-card.combat {
  border-left: 4px solid var(--sand-dark);
}

.event-card.hidden {
  opacity: 0;
  transform: translateY(30px) scale(0.9);
  pointer-events: none;
}

.event-card.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Particle Animation */
.particle {
  position: absolute;
  background: var(--desert-gold);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.6;
  animation: float 15s infinite linear;
}

@keyframes float {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-100px) rotate(360deg);
    opacity: 0;
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .nav-content {
    flex-direction: column;
    gap: 1rem;
  }
  
  .filter-buttons {
    justify-content: center;
  }
  
  .schedule-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .main-header {
    padding: 2rem 1rem 1rem;
  }
  
  .schedule-container {
    padding: 2rem 1rem;
  }
  
  .schedule-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .filter-btn {
    padding: 0.6rem 1rem;
    font-size: 0.8rem;
  }
  
  .event-card {
    padding: 1.5rem;
  }
  
  .event-card:hover {
    transform: translateY(-5px) scale(1.02);
  }
}

@media (max-width: 480px) {
  .filter-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    width: 100%;
  }
  
  .filter-btn {
    padding: 0.5rem;
    font-size: 0.7rem;
  }
  
  .main-title {
    font-size: 2rem;
  }
}