/* Design & Custom Properties */
:root {
  /* Colors */
  --color-primary-orange: hsl(31, 77%, 52%);
  --color-primary-cyan: hsl(184, 100%, 22%);
  --color-primary-dark-green: hsl(179, 100%, 13%);
  
  --color-neutral-light-gray: hsl(0, 0%, 95%);
  --color-neutral-white-translucent: hsla(0, 0%, 100%, 0.75);
  --color-neutral-pure-white: hsl(0, 0%, 100%);
  
  /* Typography */
  --font-family-body: 'Lexend Deca', sans-serif;
  --font-family-heading: 'Big Shoulders Display', sans-serif;
  --font-size-body: 0.9375rem; /* 15px */
  
  /* Layout Configurations */
  --border-radius-main: 8px;
  --transition-speed: 0.2s ease-in-out;
}

/* Reset & Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-body);
  font-size: var(--font-size-body);
  line-height: 1.6;
  background-color: var(--color-neutral-light-gray);
  color: var(--color-neutral-white-translucent);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2.5rem 1.5rem;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: 920px;
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  width: 100%;
  border-radius: var(--border-radius-main);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

/* BEM Component Blocks: Card Item */
.card-item {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* Column Theme Modifiers */
.card-item--sedans {
  background-color: var(--color-primary-orange);
}

.card-item--suvs {
  background-color: var(--color-primary-cyan);
}

.card-item--luxury {
  background-color: var(--color-primary-dark-green);
}

/* Child Elements */
.card-item__icon-wrapper {
  margin-bottom: 2.2rem;
}

.card-item__icon {
  display: block;
  max-width: 100%;
  height: auto;
}

.card-item__title {
  font-family: var(--font-family-heading);
  font-size: 2.5rem;
  text-transform: uppercase;
  color: var(--color-neutral-light-gray);
  margin-bottom: 1.75rem;
  font-weight: 700;
}

.card-item__description {
  font-size: var(--font-size-body);
  color: var(--color-neutral-white-translucent);
  margin-bottom: 3.5rem;
  flex-grow: 1; /* Pushes interactive CTA buttons into equal baseline rows */
}

.card-item__button {
  display: inline-block;
  background-color: var(--color-neutral-light-gray);
  font-family: var(--font-family-body);
  font-size: 0.95rem;
  text-decoration: none;
  padding: 0.75rem 2rem;
  border-radius: 25px;
  border: 2px solid var(--color-neutral-light-gray);
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

/* Button Individual Themes & Active Interaction States */
.card-item__button--sedans { color: var(--color-primary-orange); }
.card-item__button--suvs { color: var(--color-primary-cyan); }
.card-item__button--luxury { color: var(--color-primary-dark-green); }

/* Hover and Active State Management */
.card-item__button:hover,
.card-item__button:focus-visible {
  background-color: transparent;
  color: var(--color-neutral-light-gray) !important;
  outline: none;
}

/* Accessibility Focus Ring Fix */
.card-item__button:focus-visible {
  outline: 3px solid var(--color-neutral-pure-white);
  outline-offset: 3px;
}

/* Responsive Breakpoints */
@media (min-width: 768px) {
  body {
    padding: 0;
  }

  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .card-item {
    padding: 3rem 3rem 3.25rem 3rem;
  }
  
  /* Apply top-left and bottom-left rounding to desktop layout first card */
  .card-item:first-of-type {
    border-radius: var(--border-radius-main) 0 0 var(--border-radius-main);
  }

  /* Apply top-right and bottom-right rounding to desktop layout last card */
  .card-item:last-of-type {
    border-radius: 0 var(--border-radius-main) var(--border-radius-main) 0;
  }
}

/* Footer Section styling */
.attribution {
  font-size: 0.6875rem;
  text-align: center;
  margin-top: 2rem;
  color: var(--color-primary-dark-green);
}

.attribution a {
  color: var(--color-primary-cyan);
  font-weight: bold;
  text-decoration: none;
}

.attribution a:hover {
  text-decoration: underline;
}