:root {
  --lima: #C8E64A;
  --rosa: #F2C4CE;
  --verde-bosque: #2F5233;
  --casi-negro: #1C1A12;
  --crema: #F5F0E8;

  --font-display: 'Fredoka', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container: 1200px;
  --edge: 56px;
}

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

body {
  background: var(--crema);
  color: var(--casi-negro);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* NAV */
.nav {
  border-bottom: 1px solid var(--casi-negro);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px var(--edge);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
}
.nav-links {
  display: flex;
  gap: 40px;
}
.nav-links a {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  padding: 8px 18px;
  border-radius: 40px;
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.nav-links a.active {
  text-decoration: underline;
  text-underline-offset: 4px;
}
.nav-links a:not(.active):hover {
  background: var(--lima);
}
.nav-links a:not(.active):active {
  background: var(--lima);
  border-color: var(--casi-negro);
}

/* PORTFOLIO GRID */
.portfolio-grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px var(--edge) 96px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.case-card {
  display: block;
}
.case-image {
  aspect-ratio: 16 / 11;
  background: #1c1a12;
  overflow: hidden;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.case-card:hover .case-image {
  opacity: 0.85;
  transform: translateY(-4px);
}
.case-card:focus-visible .case-image {
  outline: 2px solid var(--verde-bosque);
  outline-offset: 3px;
}

/* RESPONSIVE */
@media (max-width: 860px) {
  :root { --edge: 24px; }
  .nav-links { gap: 12px; }
  .nav-links a { font-size: 14px; padding: 6px 12px; }
  .portfolio-grid {
    grid-template-columns: 1fr;
    padding: 40px var(--edge) 64px;
    gap: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}