/* Variables de diseño de Naipe Studio */
:root {
  --bg-dark: #0f1115;
  --bg-card: #181b22;
  --bg-card-hover: #222733;
  --primary: #3b82f6; /* Color de acento principal */
  --text-main: #ffffff;
  --text-muted: #9ca3af;
  --border-color: #272c37;
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  border-bottom: 1px solid var(--border-color);
  padding: 20px 0;
  position: sticky;
  top: 0;
  background-color: rgba(15, 17, 21, 0.9);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: 1px;
}

.logo span {
  color: var(--primary);
}

.nav ul {
  display: flex;
  list-style: none;
  gap: 25px;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.nav a:hover, .nav a.active {
  color: var(--text-main);
}

/* Hero Section */
.hero-proyectos {
  text-align: center;
  padding: 60px 0 40px 0;
}

.hero-proyectos h1 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.hero-proyectos p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Portfolio Layout */
.portfolio-container {
  padding-bottom: 80px;
}

.category-group {
  margin-top: 50px;
}

.category-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 25px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* Project Card */
.project-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 25px;
  text-decoration: none;
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
  overflow: hidden;
}

.project-card:hover {
  background-color: var(--bg-card-hover);
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.card-badge {
  align-self: flex-start;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 20px;
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 15px;
}

.external-badge {
  background-color: rgba(156, 163, 175, 0.15);
  color: var(--text-muted);
}

.card-content h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.card-content p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.btn-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-block;
  transition: var(--transition);
}

.project-card:hover .btn-link {
  transform: translateX(4px);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 30px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 768px) {
  .hero-proyectos h1 {
    font-size: 2rem;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
}