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

:root {
  --bg-primary: #0a0e27;
  --bg-secondary: #151934;
  --bg-card: #1a1f3a;
  --accent-green: #00ff88;
  --accent-blue: #00d4ff;
  --text-primary: #ffffff;
  --text-secondary: #a0aec0;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-green: linear-gradient(135deg, #00ff88 0%, #00cc6a 100%);
  /* NUOVA VARIABILE PER IL TESTO CAMPIONE */
  --text-champion: #ffd700;
}

:root.light {
  --bg-primary: #f6f8fb;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --accent-green: #12b886;
  --accent-blue: #228be6;
  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --border: rgba(0, 0, 0, 0.08);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --gradient-1: linear-gradient(135deg, #a5b4fc 0%, #c4b5fd 100%);
  --gradient-2: linear-gradient(135deg, #fbc2eb 0%, #a6c1ee 100%);
  --gradient-green: linear-gradient(135deg, #34d399 0%, #10b981 100%);
  /* NUOVA VARIABILE PER IL TESTO CAMPIONE */
  --text-champion: #1f2937;
}

body {
  font-family: "Inter", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.bg-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.3;
  overflow: hidden;
}

.bg-animation::before,
.bg-animation::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float 20s infinite ease-in-out;
}

.bg-animation::before {
  width: 400px;
  height: 400px;
  background: var(--gradient-1);
  top: -100px;
  left: -100px;
}

.bg-animation::after {
  width: 500px;
  height: 500px;
  background: var(--gradient-2);
  bottom: -150px;
  right: -150px;
  animation-delay: -10s;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(100px, -100px) scale(1.1);
  }
  66% {
    transform: translate(-100px, 100px) scale(0.9);
  }
}

.container {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  padding: 40px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.header-content h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  letter-spacing: -2px;
  animation: slideDown 0.8s ease-out;
}

.title-text {
  background: var(--gradient-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ball-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: clamp(28px, 4vw, 40px);
  height: clamp(28px, 4vw, 40px);
  border-radius: 50%;
  background: radial-gradient(
    circle at 30% 30%,
    #ffffff 0 18%,
    var(--bg-card) 19% 100%
  );
  border: 2px solid #0b5ed7;
  box-shadow: 0 6px 16px rgba(11, 94, 215, 0.25);
}

.header-content p {
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--text-secondary);
  font-weight: 500;
  animation: slideDown 0.8s ease-out 0.2s both;
}

.icon-button {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
}

.icon-button:hover {
  border-color: var(--accent-green);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}

.theme-icon {
  font-size: 1.1rem;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tricolore-bar {
  display: block;
  height: 8px;
  width: 280px;
  margin: 18px auto 0;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    #008c45 0 33%,
    #f4f5f0 33% 66%,
    #cd212a 66% 100%
  );
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
  position: relative;
  overflow: hidden;
}

.tricolore-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.25),
    transparent
  );
  transform: translateX(-100%);
  animation: tricolore-shimmer 2.6s ease-in-out infinite;
}

@keyframes tricolore-shimmer {
  0% {
    transform: translateX(-100%);
  }
  60% {
    transform: translateX(100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.main-content {
  padding: 2rem 0;
  animation: fadeIn 0.8s ease-out 0.4s both;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.seasons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 2rem;
}

.season-card {
  background: var(--bg-card);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  position: relative;
  text-decoration: none;
  color: inherit;
  display: block;
  backdrop-filter: blur(10px);
}

.season-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
  border-color: var(--accent-green);
}

.season-card-header {
  position: relative;
  height: 180px;
  overflow: hidden;
  background: linear-gradient(
    135deg,
    rgba(0, 255, 136, 0.1) 0%,
    rgba(0, 212, 255, 0.1) 100%
  );
}

.season-card-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(
    90deg,
    #008c45 0 33%,
    #f4f5f0 33% 66%,
    #cd212a 66% 100%
  );
  z-index: 2;
}

.season-card-header img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 30px;
  transition: all 0.3s ease;
  opacity: 0.9;
}

.season-card:hover .season-card-header img {
  transform: scale(1.1);
  opacity: 1;
}

.season-year {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: var(--gradient-green);
  color: var(--bg-primary);
  padding: 8px 16px;
  font-weight: 700;
  border-radius: 12px;
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(0, 255, 136, 0.3);
  z-index: 2;
}

.season-card-content {
  padding: 24px;
  text-align: center;
}

.season-card-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.champion-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(
    135deg,
    rgba(255, 215, 0, 0.2) 0%,
    rgba(255, 170, 0, 0.2) 100%
  );
  /* Utilizza la variabile per il testo */
  color: var(--text-champion);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 12px;
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.champion-badge::before {
  content: "🏆";
  font-size: 1.2rem;
}

.current-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--gradient-green);
  color: var(--bg-primary);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  z-index: 10;
  box-shadow: 0 4px 12px rgba(0, 255, 136, 0.3);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.loading-message,
.error-message {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  font-size: 1.1rem;
}

.loading-message {
  color: var(--text-secondary);
  font-style: italic;
}

.error-message {
  color: #ef4444;
  font-weight: 600;
}

footer {
  margin: 60px 0 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.copyright {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.actions-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

@media (max-width: 768px) {
  .header-row {
    flex-direction: column;
    gap: 12px;
  }

  .seasons-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
  }

  .season-card-header {
    height: 140px;
  }

  .season-card-content {
    padding: 16px;
  }

  .season-card-content h3 {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .seasons-grid {
    grid-template-columns: 1fr;
  }
}