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

body {
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(180deg, #A5D8FF, #FFFFFF);
  color: #2A3D66;
  overflow-x: hidden;
}

/* Stickers flotantes */
.sticker {
  position: absolute;
  font-size: 2rem;
  animation: float 6s ease-in-out infinite;
  opacity: 0.7;
}
.sticker1 { top: 15%; left: 5%; }
.sticker2 { top: 40%; right: 10%; }
.sticker3 { bottom: 20%; left: 15%; }
.sticker4 { bottom: 10%; right: 20%; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

/* Hero */
.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 80px 40px;
  color: #203A43;
  flex-wrap: wrap;
  text-align: center;
}

.hero-text h1 {
  font-size: 3rem;
  color: #4A90E2;
}
.hero-text span {
  color: #203A43;
}
.hero-text p {
  margin: 15px 0;
  font-size: 1.3rem;
}
.hero-img img {
  width: 250px;
  border-radius: 50%;
  border: 4px solid #4A90E2;
}
.btn {
  display: inline-block;
  margin-top: 15px;
  padding: 12px 20px;
  background: #4A90E2;
  color: white;
  text-decoration: none;
  border-radius: 20px;
  font-weight: bold;
  transition: transform 0.3s ease, background 0.3s ease;
}
.btn:hover {
  transform: scale(1.1);
  background: #357ABD;
}

/* Secciones */
section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: auto;
}
h2 {
  font-size: 2rem;
  margin-bottom: 30px;
  color: #4A90E2;
}

/* Sobre mí */
.sobre-mi p {
  max-width: 800px;
  margin: auto;
  font-size: 1.2rem;
}

/* Timeline */
.exp-edu {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 40px;
}
.exp-edu ul {
  list-style: none;
  text-align: left;
}
.exp-edu li {
  background: white;
  padding: 15px;
  margin-bottom: 10px;
  border-left: 5px solid #4A90E2;
  box-shadow: 0 4px 10px var(--sombra);
}

/* Certificaciones */
.certificaciones {
  background: #f1f3f8;
  border-radius: 20px;
}
.grid-certificaciones {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.certificado {
  background: white;
  padding: 15px;
  border-radius: 15px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}
.certificado:hover {
  transform: translateY(-5px);
}
.certificado a {
  color: #4A90E2;
  font-weight: bold;
  text-decoration: none;
}

/* Proyectos */
.grid-proyectos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}
.project-card {
  background: white;
  padding: 20px;
  border-radius: 20px;
  box-shadow: 0px 5px 15px rgba(0,0,0,0.1);
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-in-out;
}
.project-card img {
  width: 100%;
  border-radius: 10px;
}
.project-card a {
  color: #4A90E2;
  font-weight: bold;
  text-decoration: none;
}
.fade-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* Footer */
footer {
  background: #4A90E2;
  color: white;
  text-align: center;
  padding: 20px;
}
footer a {
  color: #FFD700;
  text-decoration: none;
}
footer a:hover {
  text-decoration: underline;
}