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

:root {
  --primary-color: #2563eb;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --background-color: #f8fafc;
  --card-background: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--background-color);
  color: var(--text-primary);
  line-height: 1.6;
}

.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.container-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2rem;
  text-align: center;
  letter-spacing: -0.025em;
}

.containers-buttons-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
  margin-bottom: 15px;
}

.container-btn {
  background: var(--card-background);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  overflow: hidden;
  min-height: 160px;
}

.container-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.container-btn:active {
  transform: translateY(0);
}

.container-btn-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.container-btn-code {
  font-size: 16px;
  font-weight: 800;
  color: var(--warning-color);
  letter-spacing: -0.025em;
}


.container-btn-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.container-btn-description {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.container-btn-subdescription {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.container-btn-parameters {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.parameter-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.parameter-label {
  font-size: 12px;
  color: rgb(82, 82, 82);
  font-weight: 500;
}

.parameter-value {
  font-size: 12px;
  color: var(--text-primary);
  font-weight: 600;
}


/* Responsive */
@media (max-width: 768px) {
  .page-container {
    padding: 1rem;
  }

  .container-title {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
  }

  .containers-buttons-container {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .container-btn {
    padding: 1.25rem;
  }

  .container-btn-code {
    font-size: 1.25rem;
  }

  .container-btn-description {
    font-size: 1rem;
  }
}

.container-btn:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.container-btn {
  animation: fadeInUp 0.3s ease-out;
}

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

/* Delay escalonado para las cards */
.container-btn:nth-child(1) {
  animation-delay: 0.1s;
}
.container-btn:nth-child(2) {
  animation-delay: 0.2s;
}
.container-btn:nth-child(3) {
  animation-delay: 0.3s;
}


.container-btn {
    position: relative;
}

.container-fav {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 50;
    background: none;
    border: none;
    font-size: 10px;
    cursor: pointer;
}

.container-fav i {
    color: #888;
}

.container-fav i.active-star {
    color: #91bcf5;
}