/* === Fonts === */
@font-face {
  font-family: 'Nunito';
  src: url('fonts/Nunito-Variable.ttf') format('truetype');
  font-weight: 200 1000;
  font-display: swap;
}

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

:root {
  --purple-600: #9333ea;
  --purple-700: #7e22ce;
  --orange-600: #ea580c;
  --orange-700: #c2410c;
  --pink-600: #db2777;
  --pink-700: #be185d;
  --green-600: #16a34a;
  --green-700: #15803d;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-800: #1f2937;
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / .25);
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  background: #111827;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  -webkit-font-smoothing: antialiased;
}

/* === Layout === */
.container {
  max-width: 72rem;
  width: 100%;
}

.header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.header h1 {
  font-family: 'Nunito', system-ui, sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: #f9fafb;
  margin-bottom: .5rem;
}

.header p {
  font-size: .875rem;
  color: var(--gray-600);
}

/* === Grid === */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 64rem;
  margin: 0 auto;
}

/* === Card === */
.card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 1rem;
  border: 2px solid transparent;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow .3s, transform .3s, border-color .3s;
}

.card:hover {
  box-shadow: var(--shadow-2xl);
  transform: translateY(-.5rem);
}

/* Card image */
.card-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.card-image > img:first-child {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .9;
  transition: transform .3s;
}

.card:hover .card-image > img:first-child {
  transform: scale(1.1);
}

.card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, .5), transparent);
  pointer-events: none;
}

/* Sponsor badge */
.card-sponsor-badge {
  position: absolute;
  top: .5rem;
  right: .5rem;
  background: #ea580c;
  border-radius: .375rem;
  padding: .25rem .5rem;
  pointer-events: none;
}

.card-sponsor {
  display: block;
  width: 4rem;
  height: auto;
}

.card-image-text {
  position: absolute;
  bottom: .75rem;
  left: .75rem;
  right: .75rem;
}

.card-image-text h2 {
  font-family: 'Nunito', system-ui, sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .25rem;
  text-wrap: balance;
}

.card-image-text p {
  color: rgba(255, 255, 255, .9);
  font-size: .75rem;
}

/* Card body */
.card-body {
  padding: 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-body > p {
  color: var(--gray-600);
  font-size: .75rem;
  flex: 1;
  margin-bottom: .75rem;
  text-wrap: balance;
}

/* Card link / CTA */
.card-link {
  display: flex;
  align-items: center;
  font-weight: 600;
  font-size: .75rem;
}

.card-arrow {
  width: 1rem;
  height: 1rem;
  margin-left: .5rem;
  transition: transform .3s;
}

.card:hover .card-arrow {
  transform: translateX(.25rem);
}

/* === Card color variants === */
.card--purple { border-color: var(--purple-600); }
.card--purple .card-image { background: linear-gradient(to bottom right, #6366f1, #9333ea); }
.card--purple .card-link  { color: var(--purple-600); }
.card--purple:hover .card-link { color: var(--purple-700); }

.card--orange { border-color: var(--orange-600); }
.card--orange .card-image { background: linear-gradient(to bottom right, #f97316, #ec4899); }
.card--orange .card-link  { color: var(--orange-600); }
.card--orange:hover .card-link { color: var(--orange-700); }

.card--pink { border-color: var(--pink-600); }
.card--pink .card-image { background: linear-gradient(to bottom right, #ec4899, #9333ea); }
.card--pink .card-link  { color: var(--pink-600); }
.card--pink:hover .card-link { color: var(--pink-700); }

.card--green { border-color: var(--green-600); }
.card--green .card-image { background: linear-gradient(to bottom right, #22c55e, #0d9488); }
.card--green .card-link  { color: var(--green-600); }
.card--green:hover .card-link { color: var(--green-700); }

.card--red { border-color: #dc2626; }
.card--red .card-image { background: linear-gradient(to bottom right, #dc2626, #7f1d1d); }
.card--red .card-link  { color: #dc2626; }
.card--red:hover .card-link { color: #b91c1c; }

/* Card title — large variant (no icon) */
.card-title--large {
  font-size: 1.75rem !important;
  line-height: 1.1;
}

/* Card without image — gradient only */
.card-image--no-img {
  display: flex;
  align-items: flex-end;
}

/* === Footer === */
.footer {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--gray-500);
  font-size: .75rem;
}

/* === Responsive === */
@media (min-width: 768px) {
  .header { margin-bottom: 2rem; }
  .header h1 { font-size: 2.5rem; }
  .header p { font-size: 1rem; }

  .card-grid { grid-template-columns: repeat(2, 1fr); }

  .card-image { height: 200px; }
  .card-image-text h2 { font-size: 1.5rem; }
  .card-title--large { font-size: 2rem !important; }

  .card-body > p { font-size: .875rem; }
  .card-link { font-size: .875rem; }

  .footer { margin-top: 2rem; font-size: .875rem; }
}

@media (min-width: 1024px) {
  .header h1 { font-size: 3rem; }
  .card-grid { grid-template-columns: repeat(4, 1fr); }
  .card-image { height: 220px; }
}