/* Importação de Fontes de Alta Legibilidade */
@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600&family=Montserrat:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --bg-primary: #0a0f1d;
  --bg-card: rgba(15, 23, 42, 0.75);
  --border-color: rgba(255, 255, 255, 0.08);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --accent-color: #00f2fe;
  --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Fira Code', monospace;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  margin: 0;
  padding: 0;
}

.tech-code {
  font-family: var(--font-mono);
}

/* Grid de Projetos */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
  padding: 2rem 0;
}

/* Card com Estado Inicial Invisível para a Animação */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  backdrop-filter: blur(12px);
  padding: 1.75rem;
  
  /* Transição Suave e Performance GPU */
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

/* Classe Ativada pelo Intersection Observer */
.project-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Acessibilidade: Respeita preferências de movimento reduzido */
@media (prefers-reduced-motion: reduce) {
  .project-card {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* Fallback para navegadores sem JavaScript ativo */
.no-js .project-card {
  opacity: 1;
  transform: none;
}

/* Micro-interação no Hover */
.project-card:hover {
  border-color: rgba(0, 242, 254, 0.4);
  box-shadow: 0 10px 30px -10px rgba(0, 242, 254, 0.15);
}