/* ============================================
   PREMIUM EFFECTS & ANIMATIONS
   Dark/Light Theme Support
   ============================================ */

:root {
  --neon-primary: #ce1126;
  --neon-secondary: #ff3366;
  --neon-dark: #000000;
  --glow-strength: 20px;
}

/* ============================================
   REGISTRATION CARDS - PREMIUM
   ============================================ */

.registration-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
}

.reg-card {
  position: relative;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 25px;
  padding: 3rem 2rem;
  text-align: center;
  text-decoration: none;
  color: white;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  cursor: pointer;
}

.reg-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(206, 17, 38, 0.1), rgba(0, 0, 0, 0.2));
  opacity: 0;
  transition: opacity 0.4s;
}

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

.reg-card:hover {
  transform: translateY(-15px) scale(1.02);
  border-color: var(--neon-primary);
  box-shadow: 0 20px 60px rgba(206, 17, 38, 0.4),
              0 0 40px rgba(206, 17, 38, 0.3),
              inset 0 0 20px rgba(206, 17, 38, 0.1);
}

.card-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-dark));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  box-shadow: 0 10px 30px rgba(206, 17, 38, 0.3);
  transition: all 0.4s;
  animation: icon-float 3s ease-in-out infinite;
}

@keyframes icon-float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-10px) rotate(5deg);
  }
}

.reg-card:hover .card-icon {
  transform: scale(1.1) rotate(10deg);
  box-shadow: 0 15px 40px rgba(206, 17, 38, 0.5),
              0 0 30px rgba(206, 17, 38, 0.4);
}

.card-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: white;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.card-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.card-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  font-size: 1.25rem;
  transition: all 0.3s;
}

.reg-card:hover .card-arrow {
  background: var(--neon-primary);
  transform: translateX(-10px);
}

.card-glow {
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--neon-primary), transparent);
  border-radius: 25px;
  opacity: 0;
  filter: blur(20px);
  transition: opacity 0.4s;
  z-index: -1;
}

.reg-card:hover .card-glow {
  opacity: 0.6;
  animation: glow-pulse 2s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* ============================================
   NEON GLOW EFFECTS
   ============================================ */

.neon-glow {
  animation: neon-glow-effect 2s ease-in-out infinite;
}

@keyframes neon-glow-effect {
  0%, 100% {
    filter: drop-shadow(0 0 5px rgba(206, 17, 38, 0.5))
            drop-shadow(0 0 10px rgba(206, 17, 38, 0.3));
  }
  50% {
    filter: drop-shadow(0 0 10px rgba(206, 17, 38, 0.8))
            drop-shadow(0 0 20px rgba(206, 17, 38, 0.6))
            drop-shadow(0 0 30px rgba(206, 17, 38, 0.4));
  }
}

.neon-card {
  position: relative;
}

.neon-card::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--neon-primary), transparent, var(--neon-primary));
  border-radius: 27px;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s;
}

.neon-card:hover::after {
  opacity: 0.5;
  animation: rotate-border 3s linear infinite;
}

@keyframes rotate-border {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ============================================
   PREMIUM STATISTICS SECTION
   ============================================ */

.premium-statistics {
  padding: 100px 0;
  background: var(--modern-gradient);
  position: relative;
  overflow: hidden;
}

.stats-animated-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(206, 17, 38, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(206, 17, 38, 0.2) 0%, transparent 50%);
  animation: bg-pulse 4s ease-in-out infinite;
}

@keyframes bg-pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.stats-premium-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  max-width: 1000px;
  margin: 0 auto;
}

.stat-premium-card {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--modern-radius);
  padding: 2.5rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.stat-premium-card::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(206, 17, 38, 0.2), transparent 70%);
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.6s;
}

.stat-premium-card:hover::before {
  transform: translate(-50%, -50%) scale(1);
}

.stat-premium-card:hover {
  transform: translateY(-10px);
  border-color: rgba(206, 17, 38, 0.5);
  box-shadow: 0 20px 60px rgba(206, 17, 38, 0.3),
              0 0 40px rgba(206, 17, 38, 0.2);
}

.neon-stat {
  animation: stat-glow 3s ease-in-out infinite;
}

@keyframes stat-glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(206, 17, 38, 0.2);
  }
  50% {
    box-shadow: 0 0 40px rgba(206, 17, 38, 0.4),
                0 0 60px rgba(206, 17, 38, 0.2);
  }
}

.stat-premium-icon {
  position: relative;
  margin-bottom: 1.5rem;
}

.icon-circle {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  position: relative;
  z-index: 1;
}

.icon-pulse {
  animation: icon-pulse-anim 2s ease-in-out infinite;
}

@keyframes icon-pulse-anim {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.icon-danger {
  background: rgba(239, 68, 68, 0.2);
}

.icon-warning {
  background: rgba(251, 191, 36, 0.2);
}

.icon-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(206, 17, 38, 0.6), transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  filter: blur(15px);
  animation: glow-expand 2s ease-in-out infinite;
}

@keyframes glow-expand {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.5;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 1;
  }
}

.glow-danger {
  background: radial-gradient(circle, rgba(239, 68, 68, 0.6), transparent 70%);
}

.glow-warning {
  background: radial-gradient(circle, rgba(251, 191, 36, 0.6), transparent 70%);
}

.stat-premium-content {
  text-align: center;
  color: white;
}

.stat-premium-value {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 0.75rem;
  text-shadow: 0 0 20px rgba(206, 17, 38, 0.5);
  animation: value-glow 2s ease-in-out infinite;
}

@keyframes value-glow {
  0%, 100% {
    text-shadow: 0 0 20px rgba(206, 17, 38, 0.5);
  }
  50% {
    text-shadow: 0 0 30px rgba(206, 17, 38, 0.8),
                 0 0 40px rgba(206, 17, 38, 0.6);
  }
}

.stat-premium-label {
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

.stat-premium-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.bar-fill {
  height: 100%;
  border-radius: 3px;
  animation: bar-fill-anim 2s ease-out forwards;
  position: relative;
}

@keyframes bar-fill-anim {
  from {
    width: 0;
  }
  to {
    width: 85%;
  }
}

.bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5));
  animation: bar-shine 2s ease-in-out infinite;
}

@keyframes bar-shine {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.bar-primary {
  background: linear-gradient(90deg, rgba(206, 17, 38, 0.6), rgba(206, 17, 38, 1));
  box-shadow: 0 0 10px rgba(206, 17, 38, 0.5);
}

.bar-danger {
  background: linear-gradient(90deg, rgba(239, 68, 68, 0.6), rgba(239, 68, 68, 1));
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.5);
}

.bar-warning {
  background: linear-gradient(90deg, rgba(251, 191, 36, 0.6), rgba(251, 191, 36, 1));
  box-shadow: 0 0 10px rgba(251, 191, 36, 0.5);
}

.stat-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.stat-particles::before,
.stat-particles::after {
  content: '';
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  animation: particle-float 4s ease-in-out infinite;
}

.stat-particles::before {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.stat-particles::after {
  bottom: 30%;
  right: 15%;
  animation-delay: 2s;
}

@keyframes particle-float {
  0%, 100% {
    transform: translate(0, 0);
    opacity: 0;
  }
  50% {
    transform: translate(20px, -30px);
    opacity: 1;
  }
}

/* ============================================
   PREMIUM UNIVERSITIES SECTION
   ============================================ */

.premium-universities {
  padding: 120px 0 180px 0;
  background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 50%, #ffffff 100%);
  position: relative;
  overflow: visible;
  margin: 80px 0;
  z-index: 1;
}

.premium-universities::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 300px;
  background: radial-gradient(circle at 50% 0%, rgba(206, 17, 38, 0.08), transparent 70%);
  pointer-events: none;
}

.premium-universities::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, rgba(206, 17, 38, 0.05), transparent);
  pointer-events: none;
}

.universities-premium-wrapper {
  position: relative;
  padding: 4rem 0;
  margin: 3rem 0;
  min-height: 450px;
}

.slider-btn-premium {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 60px;
  height: 60px;
  border-radius: 15px;
  background: linear-gradient(135deg, #ce1126, #000000);
  border: 2px solid rgba(206, 17, 38, 0.3);
  box-shadow: 0 4px 20px rgba(206, 17, 38, 0.3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: white;
  transition: all 0.3s;
  z-index: 10;
  animation: btn-glow-pulse 2s ease-in-out infinite;
}

@keyframes btn-glow-pulse {
  0%, 100% {
    box-shadow: 0 4px 20px rgba(206, 17, 38, 0.3),
                0 0 20px rgba(206, 17, 38, 0.2);
  }
  50% {
    box-shadow: 0 8px 30px rgba(206, 17, 38, 0.5),
                0 0 40px rgba(206, 17, 38, 0.4);
  }
}

.slider-btn-premium:hover {
  transform: translateY(-50%) scale(1.15) rotate(5deg);
  box-shadow: 0 12px 40px rgba(206, 17, 38, 0.6),
              0 0 50px rgba(206, 17, 38, 0.5);
  border-color: rgba(206, 17, 38, 0.8);
}

.slider-prev-premium {
  right: -30px;
}

.slider-next-premium {
  left: -30px;
}

.slider-premium-indicators {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 3rem;
}

.slider-premium-indicators .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(206, 17, 38, 0.3);
  cursor: pointer;
  transition: all 0.3s;
}

.slider-premium-indicators .dot.active {
  width: 40px;
  border-radius: 6px;
  background: linear-gradient(90deg, #ce1126, #000000);
  box-shadow: 0 0 15px rgba(206, 17, 38, 0.6);
}

/* ============================================
   UNIVERSITY AD CARDS - SLIDER
   ============================================ */

.ad-card {
  position: absolute;
  width: 380px;
  height: 260px;
  transition: all 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform-style: preserve-3d;
  pointer-events: none;
  opacity: 0;
  will-change: transform, opacity;
  top: 50%;
  margin-top: -130px;
}

.ad-card.active {
  opacity: 1;
  transform: translateX(-50%) scale(1.1) translateZ(50px) rotateY(0deg);
  left: 50%;
  z-index: 5;
  pointer-events: all;
  animation: card-float 4s ease-in-out infinite, active-pulse 3s ease-in-out infinite;
}

@keyframes card-float {
  0%, 100% {
    transform: translateX(-50%) scale(1.1) translateZ(50px) rotateY(0deg) translateY(0);
  }
  50% {
    transform: translateX(-50%) scale(1.1) translateZ(50px) rotateY(0deg) translateY(-15px);
  }
}

@keyframes active-pulse {
  0%, 100% {
    filter: brightness(1) contrast(1);
  }
  50% {
    filter: brightness(1.2) contrast(1.1);
  }
}

.ad-card.prev {
  opacity: 0.75;
  transform: translateX(-130%) scale(0.9) rotateY(18deg) translateZ(-80px);
  left: 50%;
  z-index: 4;
  filter: blur(0.5px) brightness(0.9);
  animation: side-float-left 5s ease-in-out infinite;
}

@keyframes side-float-left {
  0%, 100% {
    transform: translateX(-130%) scale(0.9) rotateY(18deg) translateZ(-80px) translateY(0);
  }
  50% {
    transform: translateX(-130%) scale(0.9) rotateY(18deg) translateZ(-80px) translateY(-8px);
  }
}

.ad-card.next {
  opacity: 0.75;
  transform: translateX(30%) scale(0.9) rotateY(-18deg) translateZ(-80px);
  left: 50%;
  z-index: 4;
  filter: blur(0.5px) brightness(0.9);
  animation: side-float-right 5s ease-in-out infinite;
}

@keyframes side-float-right {
  0%, 100% {
    transform: translateX(30%) scale(0.9) rotateY(-18deg) translateZ(-80px) translateY(0);
  }
  50% {
    transform: translateX(30%) scale(0.9) rotateY(-18deg) translateZ(-80px) translateY(-8px);
  }
}

.ad-card.far-prev {
  opacity: 0.4;
  transform: translateX(-190%) scale(0.75) rotateY(28deg) translateZ(-180px);
  left: 50%;
  z-index: 3;
  filter: blur(1.5px) brightness(0.7);
}

.ad-card.far-next {
  opacity: 0.4;
  transform: translateX(90%) scale(0.75) rotateY(-28deg) translateZ(-180px);
  left: 50%;
  z-index: 3;
  filter: blur(1.5px) brightness(0.7);
}

.ad-card.hidden {
  opacity: 0;
  transform: scale(0.5) translateZ(-300px);
  z-index: 1;
  filter: blur(3px);
}

.ad-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  border-radius: 25px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  background: 
    linear-gradient(135deg, rgba(206, 17, 38, 0.15), transparent 50%, rgba(0, 0, 0, 0.3)),
    linear-gradient(45deg, transparent, rgba(102, 126, 234, 0.1));
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.ad-card.active .ad-card-inner {
  box-shadow: 
    0 40px 100px rgba(206, 17, 38, 0.6),
    0 0 60px rgba(206, 17, 38, 0.5),
    0 0 100px rgba(206, 17, 38, 0.3),
    inset 0 0 50px rgba(206, 17, 38, 0.15);
  border: 3px solid rgba(206, 17, 38, 0.8);
  animation: mega-glow-pulse 3s ease-in-out infinite;
}

@keyframes mega-glow-pulse {
  0%, 100% {
    box-shadow: 
      0 40px 100px rgba(206, 17, 38, 0.6),
      0 0 60px rgba(206, 17, 38, 0.5),
      0 0 100px rgba(206, 17, 38, 0.3),
      inset 0 0 50px rgba(206, 17, 38, 0.15);
    border-color: rgba(206, 17, 38, 0.8);
  }
  50% {
    box-shadow: 
      0 50px 120px rgba(206, 17, 38, 0.8),
      0 0 80px rgba(206, 17, 38, 0.7),
      0 0 140px rgba(206, 17, 38, 0.5),
      0 0 200px rgba(206, 17, 38, 0.3),
      inset 0 0 70px rgba(206, 17, 38, 0.25);
    border-color: rgba(206, 17, 38, 1);
  }
}

.ad-card-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(206, 17, 38, 0.3) 0%, 
    transparent 50%, 
    rgba(0, 0, 0, 0.3) 100%);
  opacity: 0;
  transition: opacity 0.4s;
  z-index: 1;
}

.ad-card.active .ad-card-inner::before {
  opacity: 1;
}

.ad-card-inner::after {
  content: '';
  position: absolute;
  inset: -3px;
  background: linear-gradient(45deg, 
    transparent, 
    rgba(206, 17, 38, 0.8), 
    transparent);
  border-radius: 25px;
  opacity: 0;
  filter: blur(10px);
  z-index: -1;
  transition: opacity 0.4s;
}

.ad-card.active .ad-card-inner::after {
  opacity: 0.6;
  animation: neon-border-rotate 4s linear infinite;
}

@keyframes neon-border-rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.ad-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.4s;
  display: block;
}

.ad-card.active .ad-image {
  transform: scale(1.05);
  filter: brightness(1.1) contrast(1.1);
}

.ad-card:hover .ad-image {
  transform: scale(1.08);
}

/* Enhanced Smooth Scroll */
.universities-premium-slider {
  position: relative;
  height: 400px;
  perspective: 2500px;
  perspective-origin: 50% 50%;
  overflow: visible;
  animation: slider-breathe 6s ease-in-out infinite;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  width: 100%;
  max-width: 1400px;
}

@keyframes slider-breathe {
  0%, 100% {
    perspective: 2500px;
  }
  50% {
    perspective: 3000px;
  }
}

/* ============================================
   DARK MODE SUPPORT
   ============================================ */

[data-theme="dark"] .hero-premium {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

[data-theme="dark"] .hero-overlay {
  background: linear-gradient(
    135deg,
    rgba(206, 17, 38, 0.4) 0%,
    rgba(0, 0, 0, 0.8) 50%,
    rgba(206, 17, 38, 0.3) 100%
  );
}

[data-theme="dark"] .reg-card {
  background: rgba(30, 41, 59, 0.6);
  border-color: rgba(206, 17, 38, 0.3);
}

[data-theme="dark"] .reg-card:hover {
  background: rgba(30, 41, 59, 0.8);
}

[data-theme="dark"] .premium-universities {
  background: linear-gradient(to bottom, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

[data-theme="dark"] .premium-universities::before {
  background: radial-gradient(circle at 50% 0%, rgba(206, 17, 38, 0.15), transparent 70%);
}

[data-theme="dark"] .slider-btn-premium {
  background: linear-gradient(135deg, #ce1126, #000000);
  border-color: rgba(206, 17, 38, 0.5);
}

[data-theme="dark"] .slider-btn-premium:hover {
  box-shadow: 0 12px 40px rgba(206, 17, 38, 0.8),
              0 0 60px rgba(206, 17, 38, 0.6);
}

[data-theme="dark"] .modern-universities {
  background: #1e293b;
}

[data-theme="dark"] .slider-btn {
  background: #1e293b;
  color: white;
}

[data-theme="dark"] .slider-btn:hover {
  background: var(--modern-primary);
}

[data-theme="dark"] .ad-card-inner {
  background: linear-gradient(135deg, rgba(206, 17, 38, 0.2), rgba(0, 0, 0, 0.4));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

[data-theme="dark"] .ad-card.active .ad-card-inner {
  box-shadow: 0 30px 80px rgba(206, 17, 38, 0.6),
              0 0 50px rgba(206, 17, 38, 0.5),
              inset 0 0 40px rgba(206, 17, 38, 0.2);
  border-color: rgba(206, 17, 38, 0.7);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 992px) {
  .registration-cards {
    grid-template-columns: 1fr;
    max-width: 500px;
  }
  
  .stats-premium-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ad-card {
    width: 380px;
    height: 250px;
  }

  .slider-btn-premium {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
}

@media (max-width: 768px) {
  .hero-content-center {
    padding: 100px 0;
  }
  
  .hero-premium-title {
    font-size: 2rem;
  }
  
  .reg-card {
    padding: 2.5rem 1.5rem;
  }
  
  .card-icon {
    width: 70px;
    height: 70px;
    font-size: 2rem;
  }
  
  .stats-premium-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .stat-premium-value {
    font-size: 2.5rem;
  }

  .ad-card {
    width: 340px;
    height: 220px;
  }

  .ad-card.active {
    transform: translateX(-50%) scale(1.05) translateZ(0);
  }

  .ad-card.prev,
  .ad-card.next {
    transform: translateX(-50%) scale(0.75) translateZ(-50px);
    opacity: 0.5;
  }

  .universities-premium-slider {
    height: 300px;
  }

  .slider-btn-premium {
    width: 45px;
    height: 45px;
    font-size: 1.25rem;
  }

  .slider-prev-premium {
    right: -20px;
  }

  .slider-next-premium {
    left: -20px;
  }
}

@media (max-width: 480px) {
  .registration-cards {
    gap: 1.5rem;
  }
  
  .reg-card {
    padding: 2rem 1rem;
  }

  .ad-card {
    width: 280px;
    height: 180px;
  }

  .ad-card.active {
    transform: translateX(-50%) scale(1) translateZ(0);
  }

  .ad-card.prev,
  .ad-card.next {
    display: none;
  }

  .ad-card.far-prev,
  .ad-card.far-next {
    display: none;
  }

  .universities-premium-slider {
    height: 250px;
  }

  .slider-btn-premium {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .slider-premium-indicators {
    margin-top: 2rem;
  }
  
  .card-title {
    font-size: 1.5rem;
  }
  
  .hero-premium-title {
    font-size: 1.75rem;
  }
}