/* Color variables */
:root {
  --clr-primary: #2563eb;
  --clr-secondary: #16a34a;
  --clr-dark: #111827;
  --clr-darker: #030712;
}

/* Utility classes */
.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  transition: background-color 0.2s ease;
}
.btn-primary {
  background-color: var(--clr-primary);
  color: #fff;
}
.btn-primary:hover {
  background-color: #1d4ed8;
}
.btn-secondary {
  background-color: var(--clr-secondary);
  color: #fff;
}
.btn-secondary:hover {
  background-color: #15803d;
}
.btn-outline {
  background-color: transparent;
  border: 2px solid var(--clr-primary);
  color: var(--clr-primary);
}
.btn-outline:hover {
  background-color: var(--clr-primary);
  color: #fff;
}

/* Nav link underline */
.nav-link {
  position: relative;
  color: var(--clr-primary);
}
.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--clr-secondary);
  transition: width 0.3s ease;
}
.nav-link:hover::after {
  width: 100%;
}

/* Slider container */
.slider {
  position: relative;
  height: 40vh;
  overflow: hidden;
}
.slide {
  position: absolute;
  inset: 0;
  display: none;
}
.slide.active {
  display: flex;
  align-items: center;
  justify-content: center;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Card component */
.card {
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
  overflow: hidden;
  transition: transform .2s;
}
.card:hover {
  transform: translateY(-4px);
}
.card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}
.card-content {
  padding: 1rem;
}
.card-title {
  margin-top: .5rem;
  font-weight: 600;
  color: var(--clr-dark);
}
.card-text {
  color: #6b7280;
  margin-top: .25rem;
}

/* Grid utilities */
.row {
  display: grid;
  gap: 1rem;
}
.row-2 { grid-template-columns: repeat(2, 1fr); }
.row-3 { grid-template-columns: repeat(3, 1fr); }
.row-4 { grid-template-columns: repeat(4, 1fr); }

/* Responsive typography */
.text-h1 {
  font-size: 2.25rem;
  line-height: 1.2;
}
.text-h2 {
  font-size: 1.875rem;
  line-height: 1.2;
}
.text-body {
  font-size: 1rem;
  color: #6b7280;
}

/* Buttons for forms */
input, textarea, select {
  width: 100%;
  padding: .5rem;
  border: 1px solid #d1d5db;
  border-radius: .375rem;
  font-size: 1rem;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 232, .2);
}