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

body {
  background-color: #fbf8f2;
  color: #000000;
  font-family: 'Space Mono', monospace;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 2rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 9999;
  background-color: rgba(251, 248, 242, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  pointer-events: auto;
}

.header-left {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.header-left a {
  color: #000000;
  text-decoration: none;
  transition: opacity 0.3s ease;
  position: relative;
  z-index: 10000;
}

.header-left a:hover {
  opacity: 0.5;
}

nav { display: flex; gap: 2rem; }

nav a {
  color: #000000;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: opacity 0.3s ease;
  position: relative;
  z-index: 10000;
}

nav a:hover { opacity: 0.5; }

.tareas-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 150px 2rem 120px 2rem; 
}

.tareas-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem; 
}

.tarea-item {
  display: flex;
  align-items: baseline; 
  text-decoration: none;
  color: #000000;
  transition: opacity 0.3s ease, transform 0.3s ease;
  cursor: pointer;
}

.tarea-item:hover {
  opacity: 0.5;
  transform: translateX(15px); 
}

.tarea-number {
  font-family: 'Space Mono', monospace;
  font-size: 0.9rem;
  font-weight: 700;
  margin-right: 1.5rem;
  position: relative;
  top: -1.2rem; 
}

.tarea-title {
  font-family: 'Playfair Display', serif; 
  font-size: 4.5rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 2rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  font-size: 0.85rem;
  z-index: 100;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-left a {
  color: #000000;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.footer-left a:hover {
  opacity: 0.5;
}

.footer-right {
  font-weight: 700;
}

@media (max-width: 900px) {
  header { flex-direction: column; gap: 1rem; padding: 1.5rem; position: absolute; }
  footer { position: relative; padding: 1.5rem; margin-top: auto; }
  
  .tareas-container { padding: 120px 2rem 40px 2rem; }
  .tarea-title { font-size: 2.8rem; }
  .tarea-number { font-size: 0.8rem; top: -0.8rem; margin-right: 1rem; }
}