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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Poppins", sans-serif;
  background: #0d0d0d;
  color: #e0e0e0;
  line-height: 1.6;
}

/* HEADER */
header {
  text-align: center;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.85);
  position: sticky;
  top: 0;
  z-index: 100;
}

header h1 {
  color: #FFD700;
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

nav a {
  color: #ddd;
  margin: 0 10px;
  text-decoration: none;
  font-weight: 500;
  transition: 0.3s;
}

nav a:hover {
  color: #FFD700;
}

/* SOBRE MI */
#sobre-mi {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 6rem 1rem 4rem;
}

.foto-chris {
  width: 120px;
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
  margin-bottom: 1.5rem;
}

.sobre-texto h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
}

.sobre-texto p {
  font-size: 1.1rem;
  max-width: 700px;
  color: #cfcfcf;
  margin-bottom: 2rem;
  text-align: justify;
}

.sobre-texto strong {
  color: #FFD700;
}

.btn-contacto {
  display: inline-block;
  text-decoration: none;
  margin-top: 1.5rem;
  background: linear-gradient(135deg, #FFD700, #b8860b);
  color: #000;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 30px;
  transition: all 0.4s ease;
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-contacto::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, rgba(255,255,255,0.3), rgba(255,255,255,0));
  transition: all 0.5s ease;
}

.btn-contacto:hover::before {
  left: 100%;
}

.btn-contacto:hover {
  transform: scale(1.07);
  box-shadow: 0 0 25px rgba(255, 215, 0, 0.6);
}

/* PROYECTOS */
#proyectos {
  padding: 4rem 1rem;
  text-align: center;
}

#proyectos h2 {
  color: #FFD700;
  font-size: 2rem;
  margin-bottom: 2rem;
  font-weight: 600;
}

.grid-proyectos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: #1a1a1a;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
  transition: all 0.3s ease;
}

.card:hover {
  transform: scale(1.03);
  box-shadow: 0 0 25px rgba(255, 215, 0, 0.4);
}

.card img {
  width: 100%;
  display: block;
}

.card .info {
  padding: 1rem 1.2rem;
}

.card h3 {
  color: #FFD700;
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
}

.card p {
  color: #d3d3d3;
  font-size: 0.95rem;
}

.btn {
  display: inline-block;
  background: #FFD700;
  color: #000;
  padding: 8px 15px;
  border-radius: 20px;
  margin-top: 0.8rem;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn:hover {
  background: #ffea8a;
}

.tecnologias {
  margin-top: 1rem;
  font-size: 1.3rem;
}

.tecnologias i {
  margin: 0 6px;
}

/* CERTIFICADOS */
#certificados {
  padding: 4rem 1rem;
  text-align: center;
}

#certificados h2 {
  color: #FFD700;
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 2rem;
}

.grid-certificados {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.card-cert {
  background: #1a1a1a;
  border-radius: 10px;
  padding: 2rem 1rem;
  transition: all 0.3s ease;
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

.card-cert:hover {
  transform: scale(1.03);
  box-shadow: 0 0 25px rgba(255, 215, 0, 0.4);
}

.card-cert h3 {
  color: #FFD700;
  font-size: 1.2rem;
  font-weight: 600;
}

.icon-cert {
  font-size: 2.5rem;
  margin: 1rem 0;
  color: #FFD700;
}

/* CONTACTO */
#contacto {
  padding: 4rem 1rem;
  text-align: center;
}

#contacto h2 {
  color: #FFD700;
  margin-bottom: 2rem;
  font-size: 2rem;
  font-weight: 600;
}

form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

input, textarea {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 5px;
  background: #2a2a2a;
  color: #fff;
  font-size: 1rem;
}

textarea {
  height: 100px;
  resize: none;
}

.socials {
  margin-top: 2rem;
  font-size: 2rem;
}

.socials a, .socials i {
  margin: 0 10px;
  color: #ffffff;
  transition: all 0.3s ease;
}

.socials a:hover, .socials i:hover {
  color: #ffea8a;
  transform: scale(1.1);
}

/* FOOTER */
footer {
  text-align: center;
  padding: 1rem;
  color: #888;
  background: #0d0d0d;
  font-size: 0.9rem;
}

/* ANIMACIONES */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}