* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  border: none;
  outline: none;
  scroll-behavior: smooth;
  font-family: 'Poppins', sans-serif;
}

/* Root variables for colors */
/* 🌙 Tema oscuro (por defecto) */
:root {
  --bg-color: #0d1117;
  --second-bg-color: #161b22;
  --text-color: #e6edf3;
  --main-color: #ff0202;
  --accent-color: #2dd4bf;
}

/* ☀️ Tema claro */
body.light-theme {
  --bg-color: #e3e6ff;
  --second-bg-color: #daddfd;
  --text-color: #1a1a1a;
  --main-color: #14a0e0;
  --accent-color: #262727;
}

/* Global styles */

html {
  font-size: 60%;
}

body {
  background: var(--second-bg-color);
  color: var(--text-color);
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
}

/* --- Botón contenedor --- */
.dark-mode {
  display: flex;
  padding: 0.2rem;
  border: 0.3rem solid var(--bg-color);
  background-color: rgb(147, 145, 145);
  border-radius: 999px;
  width: 8rem;
  height: 3.5rem;
  transition: background-color 0.5s ease;
  cursor: pointer;
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 1000;

  align-items: center;
  justify-content: flex-start;
}

/* Cambio de fondo en modo claro */
body.light-theme .dark-mode {
  background-color: #fff;
}

/* --- Círculo que se desliza --- */
.circle {
  width: 40%;
  height: 90%;
  border-radius: 80%;
  background-color: white;
  position: relative;
  transition:
    transform 0.5s ease,
    background-color 0.5s ease;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-left: 2px;
  filter: drop-shadow(0px 0px 20px rgba(0, 0, 0, 0.5));
}

body.light-theme .circle {
  transform: translateX(140%);
  background-color: #2a2a2c;
}

/* --- Iconos dentro del círculo --- */
.circle i {
  position: absolute;
  font-size: 1.8rem;
  transition:
    transform 0.5s ease,
    opacity 0.5s ease;
}

/* Luna - visible solo en modo dark */
#moon-icon {
  transform: translateY(0%);
  opacity: 1;
  color: black;
}

body.light-theme #moon-icon {
  transform: translateY(-150%);
  opacity: 0;
}

/* Sol - visible solo en modo light */
#sun-icon {
  transform: translateY(150%);
  opacity: 0;
  color: #fcde5b;
}

body.light-theme #sun-icon {
  transform: translateY(0%);
  opacity: 1;
}

/* Header styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding-right: 10rem;
  background: rgb(0, 0, 0, 0.6);
  backdrop-filter: blur(15px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 5;
}

/* Navbar styles */
.logo {
  font-size: 3rem;
  color: var(--text-color);
  font-weight: 800;
  cursor: pointer;
  transition: 0.3s ease;
  position: relative;
}

.logo:hover {
  transform: scale(1.1);
}

.logo span {
  text-shadow: 0 0 25px var(--main-color);
}

/* Enlaces del navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  gap: 2rem;
}
.navbar a {
  font-size: 1.8rem;
  color: var(--text-color);
  font-weight: 600;
  transition: 0.3s ease;
  border-bottom: 2px solid transparent;
  padding: 0.5rem 1rem;
}

/* Efecto al pasar el mouse o cuando está activo */
.navbar a:hover,
.navbar a.active {
  color: var(--main-color);
  border-bottom: 3px solid var(--main-color);
}

/* Icono del menú hamburguesa (oculto por defecto) */
.bx-burger-alt {
  display: none;
  font-size: 6.5rem;
  color: var(--main-color);
}

.navbar.active {
  display: flex;
}

/* Sección general */
section {
  padding: 10rem 15rem;
  min-height: 80vh;
}

/* Sección principal "about" */
.about {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 6rem;
  margin-top: 3rem;
  margin-bottom: 2rem;
  font-size: 3rem;
}

/* Contenido de la sección "about" */
.about-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-top: 5rem;
  padding: auto;
}

/* Estilo del logo dentro de "about-content" */
span {
  color: var(--main-color);
}

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

.about-content h1 {
  font-size: 5rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4rem;
}

.about-content h2 {
  margin-top: 1rem;
  margin-bottom: 2rem;
  font-size: 2.8rem;
}

.about-img img {
  border-radius: 50%;
}

.about-img img {
  position: relative;
  top: 10rem;
  width: 500px;
  border-radius: 50%;
  box-shadow: 0 0 50px var(--main-color);
  transform: scale(0.8) translateY(-100px);
}

.about-img img:hover {
  transform: scale(0.9) translateY(-100px);
  box-shadow: 0 0 50px var(--main-color);
  transition: 0.4s ease-in-out;
  cursor: pointer;
}

.about-content p {
  font-size: 2rem;
  margin-top: 500;
  line-height: 1.8;
  max-width: 1000px;
}

/* Iconos de redes sociales en la sección "about" */

.social-icons a {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 4.5rem;
  height: 4.5rem;
  background: transparent;
  border: 2px solid var(--main-color);
  font-size: 2.5rem;
  border-radius: 50%;
  color: var(--main-color);
  margin: 3rem 1.5rem 3rem 0;
  transition: 0.13s ease-in-out;
}

.social-icons a:hover {
  color: var(--text-color);
  transform: scale(1.3) translateY(-5px);
  box-shadow: 0 0 25px var(--main-color);
  background-color: var(--main-color);
}

.btn {
  display: inline-block;
  padding: 1rem 2.8rem;
  background: var(--main-color);
  box-shadow: 0 0 25px var(--main-color);
  border-radius: 4rem;
  font-size: 1.6rem;
  color: rgb(255, 255, 255);
  border: 2px solid transparent;
  letter-spacing: 0.1rem;
  font-weight: 600;
  transition: 0.13s ease-in-out;
  cursor: pointer;
}

.btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 50px var(--main-color);
  color: black;
}

.btn-group {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.btn-group a:nth-of-type(1):hover {
  transform: scale(1) translateY(-10px);
  background: var(--main-color);
  color: rgb(0, 0, 0);
  box-shadow: 0 0 10px var(--main-color);
}

.btn-group a:nth-of-type(2):hover {
  transform: scale(1) translateY(-10px);
  background: var(--main-color);
  color: rgb(0, 0, 0);
  box-shadow: 0 0 10px var(--main-color);
}

.text-animation {
  font-size: 34px;
  font-weight: 600;
}

.text-animation span {
  position: relative;
}

.text-animation span::after {
  content: '';
  color: var(--main-color);
  animation: words 20s infinite;
}

.text-animation span::before {
  content: '';
  background-color: var(--second-bg-color);
  position: absolute;
  width: calc(100% + 8px);
  height: 100%;
  border-left: 3px solid var(--second-bg-color);
  right: -8px;
  animation:
    cursor 0.6s infinite,
    typing 20s steps(14) infinite;
}

@keyframes cursor {
  to {
    border-left: 5px solid var(--text-color);
  }
}

@keyframes words {
  0%,
  100% {
    content: 'Full Stack en formación';
  }
}

@keyframes typing {
  10%,
  15%,
  30%,
  35%,
  50%,
  55%,
  70%,
  75%,
  90%,
  95% {
    width: 0;
  }

  5%,
  20%,
  25%,
  40%,
  45%,
  60%,
  65%,
  80%,
  85% {
    width: calc(100% + 8px);
  }
}

/*barra de scroll derecha*/
::-webkit-scrollbar {
  width: 5px;
}

::-webkit-scrollbar-thumb {
  background: var(--main-color);
}

::-webkit-scrollbar-track {
  background: var(--second-bg-color);
  width: 50px;
}

/* Tecnologías*/
.Tecnologías {
  background-color: var(--bg-color);
  padding: 4rem 4rem;
  color: var(--text-color);
  text-align: center;
}

/* Título principal */
.Tecnologías .heading {
  margin-bottom: 4rem;
  color: var(--text-color);
}
.achievements p {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 30px;
  color: var(--main-color);
}

.category {
  margin-bottom: 40px;
}

.category h3 {
  margin-bottom: 30px;
  text-align: center;
  font-size: 3rem;
  color: #7e7b7b;
}

.icons {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 90px;
  padding: 10px;
  background: #eee;
  border-radius: 12px;
  border: 2px solid var(--main-color);
  transition: all 0.3s ease;
  opacity: 0.4; /* gris por defecto */
  filter: grayscale(100%); /* bloqueado */
}

.icon i {
  font-size: 40px;
  margin-bottom: 5px;
}

/* Al desbloquear */
.icon.unlocked {
  opacity: 1;
  filter: none; /* recupera color oficial */
  background: #fff;
}

.icon span {
  font-size: 1.3rem;
}

.icon.unlocked:hover {
  transform: scale(1.05);
}
/* PROYECTOS*/
.Proyectos {
  background: var(--second-bg-color);
}

.Proyectos-box {
  display: flex;
  background-size: cover;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.Proyectos .heading {
  margin-bottom: 6rem;
  margin: 4rem;
}

.Proyectos-box img {
  width: 30rem;
  background: rgba(0, 0, 0, 0.7);
  border: 5px solid rgba(238, 238, 238, 0.2);
  border-radius: 2rem;
}

.wrapper {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8rem;
  justify-items: center;
}

.Proyectos-item {
  min-height: 40rem;
  max-width: 40rem;
  border: 3px solid var(--main-color);
  border-radius: 2rem;
  margin: 1rem;
  padding: 2rem 2rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1.5rem;
  transition: 0.4s ease-in-out;
}

.Proyectos-item:hover {
  border: 3px solid var(--main-color);
  transform: translateY(-10px) scale(1.03);
  box-shadow: 0 0 50px var(--main-color);
}

.Proyectos-item h2 {
  font-size: 2.5rem;
}

.Proyectos-item p {
  font-size: 1.3rem;
}

.tech-icons {
  margin: 1rem;
  font-size: 4rem;
}

/*Educacion*/

.heading {
  font-size: 6rem;
  text-align: center;
  margin: 10rem;
}

.education {
  position: relative;
  padding: 4rem;
  background: var(--bg-color);
}

/*Linea*/
.education::before {
  content: '';
  position: absolute;
  top: 30rem;
  bottom: 0;
  left: 50%;
  width: 2px;
  background-color: var(--main-color);
  transform: translateX(-50%);
}

/*tamaño de las cajas de educacion*/
.timeline-items {
  display: flex;
  max-width: 50rem;
  margin: auto;
  flex-wrap: wrap;
  text-align: center;
}

.timeline-items::before {
  content: '';
  width: 1000%;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  transform: translateX(-50%);
}

.timeline-item {
  margin-bottom: 40px;
  position: relative;
  width: 100%;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-item:last-child(odd) {
  padding-right: calc(50% + 30px);
  text-align: right;
}

.timeline-item::nth-child(even) {
  padding-left: calc(50% + 30px);
}
.timeline-dot {
  background-color: var(--main-color);
  box-shadow: 0 0 15px var(--main-color);
  left: 24.4rem;
  height: 1.3rem;
  width: 1.3rem;
  border-radius: 100%;
  top: 1.8rem;
  position: absolute;
}

.timeline-date {
  font-size: 20px;
  font-weight: 800;
  color: #8f8c8c;
  margin: 6px 0 15px;
}

.timeline-content {
  background: var(--second-bg-color);
  border: 3px solid var(--main-color);
  padding: 30px 50px;
  border-radius: 4rem;
  box-shadow: 0 0 10px var(--main-color);
  cursor: pointer;
  transition: 0.3s ease-in-out;
}

.timeline-content:hover {
  transform: scale(1.05);
  box-shadow: 0 0 25px var(--main-color);
}

.timeline-content h3 {
  font-size: 20px;
  color: var(--main-color);
  margin: 0 0 10px;
  font-weight: 500;
}

.timeline-content p {
  font-size: 16px;
  color: #8f8c8c;
  font-weight: 300;
  line-height: 22px;
}

.show-cert-btn {
  margin-top: 1rem;
  padding: 0.6rem 1.2rem;
  background-color: var(--main-color);
  color: white;
  border: none;
  border-radius: 60px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.show-cert-btn:hover {
  background-color: var(--bg-color);
}

.certifi-educacion {
  margin-top: 1rem;
  max-width: 300px;
  border-radius: 8px;
}

.img-educacion {
  max-width: 40rem;
  text-align: center;
  display: flex;
  border-radius: 4rem;
}

/*Cursos | Certificaciones*/
.certifi {
  background: var(--second-bg-color);
  padding: 5rem 2rem;
}

.certifi h2 {
  text-align: center;
  color: var(--text-color);
  font-size: 4rem;
}

.certifi-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  justify-items: center;
  gap: 5rem;
}

.certifi-card {
  background: var(--bg-color);
  border: 1px solid var(--main-color);
  padding: 2rem;
  border-radius: 1.5rem;
  color: var(--text-color);
  width: 300px;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.certifi-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 10px var(--main-color);
}

.certifi-card h3 {
  color: var(--main-color);
  font-size: 2rem;
  margin-bottom: 1rem;
}

.certifi-card p {
  font-size: 1.5rem;
  line-height: 1.5rem;
  text-align: justify;
}

.certifi-img {
  max-width: 100%;
  cursor: pointer;
  border-radius: 1rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}

.certifi-img:hover {
  transform: scale(1.03);
}

/*el efecto lightbox*/
.img-modal {
  display: none;
  position: fixed;
  z-index: 999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.9);
}

.modal-content {
  display: block;
  margin: 5% auto;
  max-width: 90%;
  max-height: 80%;
  border-radius: 1rem;
  box-shadow: 0 0 25px rgba(255, 255, 255, 0.3);
}

/*footer*/
.footer {
  background: var(--bg-color);
  color: var(--text-color);
  padding: 4rem 2rem;
  text-align: center;
  margin-top: 5rem;
}

.footer-content h3 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--main-color);
}

.footer-content p {
  font-size: 1.6rem;
  margin-bottom: 2rem;
}

.footer-btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: #fff;
  color: #000;
  border-radius: 5rem;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s ease;
  font-size: 1.6rem;
}

.footer-btn:hover {
  background: var(--main-color);
  color: #fff;
}

.footer .social-icons {
  margin: 2.5rem 0;
}

.footer .social-icons a {
  font-size: 2.5rem;
  color: var(--text-color);
  margin: 0 1rem;
}

.footer .social-icons a:hover {
  color: black;
  transform: scale(1.3) translateY(-5px);
  box-shadow: 0 0 25px var(--main-color);
  background-color: var(--main-color);
}

.footer-copy {
  font-size: 1.3rem;
  margin-top: 2rem;
  color: var(--text-color);
}

/* ========= MEDIA QUERIES RESPONSIVAS OPTIMIZADAS ========= */

/* Dispositivos medianos (hasta 1200px) */
@media (max-width: 1200px) {
  html {
    font-size: 55%;
  }

  .logo {
    display: inline;
    font-size: 2rem;
    color: var(--text-color);
    font-weight: 800;
    cursor: pointer;
    transition: 0.3s ease;
    position: relative;
    text-align: 1rem;
  }

  .circle {
    width: 40%;
    height: 90%;
    border-radius: 80%;
    background-color: white;
    position: relative;
    transition: transform 0.5s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 0.5px;
    filter: drop-shadow(0px 0px 20px rgba(0, 0, 0, 0.5));
  }

  .about-content h1 {
    padding: 4rem;
  }

  section {
    padding: 6rem 4rem;
  }

  .about {
    flex-direction: column;
    gap: 8rem;
  }

  .wrapper {
    grid-template-columns: repeat(2, 1fr);
  }

  .certifi-container {
    display: flex;
    flex-wrap: wrap;
    text-align: center;
    justify-content: center;
    gap: 2rem;
    padding: 1rem 27rem;
  }

  .certifi-card {
    width: 95%;
    justify-content: center;
    margin: 1rem;
  }

  .tech-group h3,
  .tech-icons-row {
    margin: 2rem 8rem;
  }
}

/* Tablets y pantallas medianas (hasta 992px) */
@media (max-width: 992px) {
  html {
    font-size: 50%;
  }

  section {
    padding: 6rem 4rem;
  }

  .logo {
    font-size: 2rem;
    color: var(--text-color);
    font-weight: 800;
    cursor: pointer;
    transition: 0.3s ease;
    position: relative;
  }

  .certifi-container {
    display: flex;
    flex-wrap: wrap;
    text-align: center;
    justify-content: center;
    gap: 2rem;
    padding: 1rem 27rem;
  }

  .circle {
    width: 40%;
    height: 90%;
    border-radius: 80%;
    background-color: white;
    position: relative;
    transition: transform 0.5s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 0.5px;
    filter: drop-shadow(0px 0px 20px rgba(0, 0, 0, 0.5));
  }

  .about {
    flex-direction: column;
    text-align: center;
    gap: 5rem;
  }

  .about-img img {
    width: 350px;
    transform: scale(1) translateY(0);
  }

  .about-content {
    align-items: center;
  }

  .certifi-card {
    width: 95%;
    justify-content: center;
    margin: 1rem;
  }

  .tech-group h3,
  .tech-icons-row {
    margin: 2rem 2rem;
    text-align: center;
    justify-content: center;
  }

  .wrapper {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline-dot {
    left: 50%;
    transform: translateX(-50%);
  }
  .nav {
    display: flex;
    flex-direction: column;
  }
}

/* Teléfonos grandes y pequeños (hasta 768px) */
@media (max-width: 768px) {
  html {
    font-size: 45%;
  }

  section {
    padding: 5rem 3rem;
  }

  .certifi-container {
    display: flex;
    flex-wrap: wrap;
    text-align: center;
    justify-content: center;
    gap: 2rem;
    padding: 1rem 10rem;
  }

  .navbar {
    display: none;
    flex-direction: column;
    align-items: center;
    background: var(--bg-color);
    position: absolute;
    top: 100%;
    right: 0;
    width: 100%;
    margin: 0;
    padding: 0;
    z-index: 10;
  }

  .navbar a {
    margin: 2rem 0;
  }

  .bx-burger-alt {
    display: block;
    cursor: pointer;
  }

  .about-img img {
    width: 280px;
  }

  .tech-group h3,
  .tech-icons-row {
    margin: 1rem;
  }

  .wrapper {
    grid-template-columns: 1fr;
  }

  .heading {
    font-size: 4rem;
    margin: 5rem 0;
  }

  .certifi-container {
    flex-direction: column;
    align-items: center;
  }

  .certifi-card {
    width: 100%;
    justify-content: center;
    margin: 1rem;
  }

  .timeline-content {
    padding: 2rem;
  }

  .timeline-dot {
    left: 50%;
    width: 1.6rem;
    height: 1.6rem;
    margin: 0.9rem 0.1rem;
    transform: translateX(-50%);
  }

  .footer-content h3 {
    font-size: 2rem;
  }

  .dark-mode {
    width: 7rem;
    height: 3rem;
    top: 1rem;
    right: 1rem;
  }
  .circle i {
    font-size: 1.6rem;
  }
}

@media (max-width: 600px) {
  .text-animation {
    display: flex;
    white-space: normal;
    text-align: center;
  }
}

/* iPhone 16 Pro Max y similares (hasta 430px) */
@media (max-width: 430px) {
  html {
    font-size: 45%;
    padding: 1rem;
  }

  section {
    padding: 4rem 2rem;
  }

  .certifi-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    padding: 1rem 7rem;
  }

  .about-img img {
    width: 230px;
  }

  .about-content h1 {
    font-size: 3.8rem;
  }

  .about-content p {
    font-size: 2rem;
    text-align: justify;
  }

  .tech-group h3 {
    margin: 1rem 0;
    font-size: 1.8rem;
    text-align: center;
  }

  .tech-icons-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 1rem;
    justify-items: center;
    margin: 1rem 0;
  }

  .img-educacion {
    max-width: 31rem;
    text-align: center;
    display: flex;
    border-radius: 4rem;
    margin: 2rem auto;
  }
}

/* iPhone 16 Pro, 15 Pro, 14, etc. (hasta 393px) */
@media (max-width: 393px) {
  html {
    font-size: 42%;
  }

  .circle {
    width: 40%;
    height: 90%;
    border-radius: 80%;
    background-color: white;
    position: relative;
    transition: transform 0.5s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 2px;
    filter: drop-shadow(0px 0px 20px rgba(0, 0, 0, 0.5));
  }

  .certifi-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    padding: 1rem 3rem;
  }

  .about-img img {
    width: 210px;
  }

  .about-content p {
    font-size: 1.9rem;
    text-align: left;
    padding: 1.5rem;
  }

  .img-educacion {
    max-width: 28rem;
    margin: 2rem auto;
  }

  .timeline-content {
    padding: 1.5rem;
  }

  .tech-icons-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Móviles muy pequeños (hasta 320px) */
@media (max-width: 320px) {
  html {
    font-size: 40%;
    padding: 1rem 2rem;
  }

  .circle {
    width: 40%;
    height: 90%;
    border-radius: 80%;
    background-color: white;
    position: relative;
    transition: transform 0.5s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 2px;
    filter: drop-shadow(0px 0px 20px rgba(0, 0, 0, 0.5));
  }

  .certifi-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    padding: 1rem 0.5rem;
  }

  .about-content p {
    font-size: 1.9rem;
    text-align: left;
    padding: 1.5rem;
    justify-content: center;
  }

  .about-img img {
    width: 180px;
  }

  .btn-group {
    flex-direction: column;
    align-items: center;
    gap: 3rem;
  }

  .img-educacion {
    max-width: 25rem;
    text-align: center;
    display: flex;
    border-radius: 4rem;
  }

  .tech-icons-row i {
    font-size: 3.5rem;
  }

  .footer-content h3 {
    font-size: 1.8rem;
  }

  .footer-btn {
    font-size: 1.4rem;
    padding: 0.8rem 2rem;
  }

  .dark-mode {
    width: 8rem;
    height: 4rem;
  }
}

/* Móviles muy pequeños (hasta 200px) */
@media (max-width: 200px) {
  html {
    font-size: 40%;
    padding: 1rem 2rem;
    justify-content: center;
  }

  .circle {
    width: 40%;
    height: 90%;
    border-radius: 80%;
    background-color: white;
    position: relative;
    transition: transform 0.5s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: -25px;
    filter: drop-shadow(0px 0px 20px rgba(0, 0, 0, 0.5));
  }

  .certifi-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    padding: 0rem 0rem;
  }

  .about-content p {
    font-size: 1.9rem;
    text-align: left;
    padding: 1.5rem;
    justify-content: center;
  }

  .about-img img {
    width: 180px;
    justify-content: center;
  }

  .btn-group {
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .img-educacion {
    max-width: 25rem;
    text-align: center;
    display: flex;
    border-radius: 4rem;
    justify-content: center;
  }

  .tech-icons-row i {
    font-size: 3.5rem;
  }

  .footer-content h3 {
    font-size: 1.8rem;
  }

  .footer-btn {
    font-size: 1.4rem;
    padding: 0.8rem 2rem;
  }

  .dark-mode {
    width: 8rem;
    height: 4rem;
    justify-content: center;
  }
}