/* ============================================================
 * MAGIC UI + RETRO UI + SMOOTH UI + UNLUMEN DESIGN SYSTEM
 * TKMI Badminton Tournament Platform
 * ============================================================ */

/* --- 1. MAGIC UI: BORDER BEAM (Animated Glowing Border Laser) --- */
.border-beam-container {
  position: relative;
  overflow: hidden;
  border-radius: inherit;
}

.border-beam {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  border: 1.5px solid transparent;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.border-beam::after {
  content: '';
  position: absolute;
  aspect-ratio: 1;
  width: calc(var(--size, 150) * 1px);
  background: linear-gradient(to right, transparent, var(--color-from, #c9a84c), var(--color-to, #3b82f6), transparent);
  offset-path: rect(0 auto auto 0 round calc(var(--radius, 16) * 1px));
  animation: border-beam-anim calc(var(--duration, 6) * 1s) infinite linear;
}

@keyframes border-beam-anim {
  100% {
    offset-distance: 100%;
  }
}

/* --- 2. RETRO UI: RETRO 3D PERSPECTIVE GRID FLOOR --- */
.retro-grid {
  position: absolute;
  inset: 0;
  overflow: hidden;
  perspective: 600px;
  pointer-events: none;
  opacity: 0.25;
}

.retro-grid-plane {
  position: absolute;
  inset: -50% -50% 0 -50%;
  height: 200%;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.15) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.15) 1px, transparent 1px);
  background-size: 40px 40px;
  transform: rotateX(70deg);
  transform-origin: center top;
  animation: retro-grid-scroll 20s linear infinite;
}

.retro-grid-dark .retro-grid-plane {
  background-image: 
    linear-gradient(to right, rgba(201, 168, 76, 0.2) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(59, 130, 246, 0.2) 1px, transparent 1px);
}

@keyframes retro-grid-scroll {
  0% {
    transform: rotateX(70deg) translateY(0);
  }
  100% {
    transform: rotateX(70deg) translateY(40px);
  }
}

/* --- 3. RETRO UI: RADIAL DOT PATTERNS & MASKS --- */
.dot-pattern {
  background-image: radial-gradient(rgba(15, 32, 68, 0.15) 1.5px, transparent 1.5px);
  background-size: 20px 20px;
}

.dot-pattern-light {
  background-image: radial-gradient(rgba(255, 255, 255, 0.15) 1.5px, transparent 1.5px);
  background-size: 20px 20px;
}

.mask-radial-fade {
  mask-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 1) 40%, rgba(0, 0, 0, 0) 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 1) 40%, rgba(0, 0, 0, 0) 80%);
}

.mask-linear-fade-b {
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 50%, rgba(0, 0, 0, 0) 100%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 50%, rgba(0, 0, 0, 0) 100%);
}

/* --- 4. UNLUMEN / ACETERNITY: SPOTLIGHT MOUSE GLOW --- */
.spotlight-card {
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.spotlight-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(201, 168, 76, 0.12),
    transparent 40%
  );
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
  z-index: 1;
}

.spotlight-card:hover::before {
  opacity: 1;
}

/* --- 5. MAGIC UI: SHIMMER BUTTON --- */
.shimmer-btn {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  background: linear-gradient(110deg, #0f2044 45%, #1e3a78 55%, #0f2044);
  background-size: 200% 100%;
}

.shimmer-btn:hover {
  animation: shimmer-anim 1.5s infinite linear;
  box-shadow: 0 0 25px rgba(201, 168, 76, 0.4);
}

@keyframes shimmer-anim {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.gold-shimmer-btn {
  position: relative;
  overflow: hidden;
  background: linear-gradient(110deg, #c9a84c 45%, #fce9a6 55%, #c9a84c);
  background-size: 200% 100%;
  color: #0f2044;
  font-weight: 800;
  animation: shimmer-anim 3s infinite linear;
}

.gold-shimmer-btn:hover {
  box-shadow: 0 0 30px rgba(201, 168, 76, 0.6);
  transform: translateY(-2px);
}

/* --- 6. SMOOTH UI: GLASSMORPHISM 2.0 --- */
.glass-panel {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 8px 32px 0 rgba(15, 32, 68, 0.05);
}

.glass-panel-dark {
  background: rgba(15, 32, 68, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.25);
}

/* --- 7. MAGIC UI: METEORS (Falling Court Lasers) --- */
.meteor {
  position: absolute;
  top: 50%;
  left: 50%;
  height: 2px;
  width: 2px;
  border-radius: 9999px;
  background-color: #c9a84c;
  box-shadow: 0 0 0 1px #ffffff10;
  transform: rotate(215deg);
  animation: meteor-anim 5s linear infinite;
  pointer-events: none;
}

.meteor::before {
  content: '';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 1px;
  background: linear-gradient(90deg, #c9a84c, transparent);
}

@keyframes meteor-anim {
  0% {
    transform: rotate(215deg) translateX(0);
    opacity: 1;
  }
  70% {
    opacity: 1;
  }
  100% {
    transform: rotate(215deg) translateX(-500px);
    opacity: 0;
  }
}

/* --- 8. SMOOTH UI: SMOOTH MICRO-INTERACTIONS --- */
.smooth-press {
  transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.15s ease;
}
.smooth-press:active {
  transform: scale(0.96);
}

.hover-lift {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}
.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 30px -10px rgba(15, 32, 68, 0.15);
}

/* --- 9. RETRO UI: ARCADE TOURNAMENT BADGE --- */
.badge-retro {
  box-shadow: 2px 2px 0px #0f2044;
  border: 1.5px solid #0f2044;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-retro-gold {
  background: #c9a84c;
  color: #0f2044;
  box-shadow: 2px 2px 0px #0f2044;
  border: 1.5px solid #0f2044;
}

/* --- 10. MAGIC UI: MARQUEE ACCELERATION --- */
.marquee-container {
  display: flex;
  overflow: hidden;
  user-select: none;
  gap: 2rem;
}

.marquee-content {
  flex-shrink: 0;
  display: flex;
  justify-content: space-around;
  min-width: 100%;
  gap: 2rem;
  animation: marquee-scroll 25s linear infinite;
}

.marquee-container:hover .marquee-content {
  animation-play-state: paused;
}

@keyframes marquee-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(calc(-100% - 2rem));
  }
}