:root {
  --color-bg: #0a0a0a;
  --color-bg-alt: #121212;
  --color-text: #e0e7ff;
  --color-accent: #00f0c9;
  --color-accent-hover: #00c9a7;
  --color-muted: #7c8296;
  --radius: 18px;
  --shadow: rgba(0, 240, 201, 0.1);

  --font-main: "Poppins", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 2rem 3rem;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  line-height: 1.6;
  letter-spacing: 0.02em;
  transition: background 0.4s ease, color 0.4s ease;
}

h1,
h2,
h3 {
  font-weight: 700;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  text-align: center;
  margin-bottom: 4rem;
  animation: fadeInDown 1s ease;
}

h1 {
  font-size: 3rem;
  background: linear-gradient(90deg, var(--color-accent), #00ffc8);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

header p {
  font-size: 1.25rem;
  color: var(--color-muted);
}

button#toggleTheme {
  margin-top: 1.5rem;
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
  border-radius: 50px;
  padding: 0.6rem 2rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
}

button#toggleTheme:hover {
  background: var(--color-accent-hover);
  color: #0a0a0a;
}

main {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

section h2 {
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.3rem;
}

section h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 10px;
}

.service-card {
  background-color: var(--color-bg-alt);
  padding: 2rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}

.service-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
  color: var(--color-accent);
}

.service-card:hover {
  transform: translateY(-6px);
}

.perfil-block {
  background: linear-gradient(135deg, #0a0a0a, #121212);
  border-radius: var(--radius);
  padding: 3rem;
  box-shadow: 0 0 25px var(--shadow);
}

.perfil-block p {
  font-size: 1.15rem;
  color: #cfd6ea;
  margin-bottom: 1.3rem;
}

.perfil-descripcion {
  font-size: 1.2rem;
  font-weight: 600;
}

.stack {
  display: inline-block;
  margin-top: 0.6rem;
  font-size: 0.95rem;
  color: #8ffbe2;
}

.seo-infografico {
  text-align: center;
  padding: 3rem 1rem;
}

.infografico-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.info-card {
  background: var(--color-bg-alt);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: 0 8px 18px rgba(0, 240, 201, 0.08);
  transition: transform 0.3s ease;
}

.info-card h3 {
  font-size: 2.4rem;
  margin-bottom: 0.5rem;
  color: var(--color-accent);
}

.info-card p {
  font-size: 1rem;
  color: #b6bdd2;
}

.info-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 20px rgba(0, 240, 201, 0.25);
}

#contact ul {
  list-style: none;
  padding: 0;
}

#contact li {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

footer {
  text-align: center;
  margin-top: 3rem;
  font-size: 0.85rem;
  color: var(--color-muted);
}

@keyframes fadeInDown {
  0% {
    opacity: 0;
    transform: translateY(-25px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 650px) {
  body {
    padding: 1.5rem;
  }

  h1 {
    font-size: 2.2rem;
  }

  section h2 {
    font-size: 1.6rem;
  }

  .perfil-block {
    padding: 2rem 1.5rem;
  }

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

.portfolio-section {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.portfolio-section h2 {
  text-align: center;
  margin-bottom: 2rem;
  color: #00f0c9;
  font-size: 2rem;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.portfolio-item {
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 240, 201, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portfolio-item:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 24px rgba(0, 240, 201, 0.6);
}

.portfolio-item img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 15px;
  object-fit: cover;
}


@media (max-width: 480px) {
  .portfolio-section h2 {
    font-size: 1.5rem;
  }
}


.contact-list {
  list-style: none;
  padding: 0;
  max-width: 320px;
  margin: 0 auto;
}

.contact-list li {
  margin-bottom: 1rem;
}

.contact-link {
  color: #00f0c9;
  font-size: 1.25rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: color 0.3s ease;
}

.contact-link:hover {
  color: #00b894;
}

.contact-link i {
  font-size: 1.6rem;
}

.modal {
  position: fixed;
  z-index: 9999;
  padding-top: 60px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.modal-content {
  max-width: 90%;
  max-height: 80vh;
  border-radius: 20px;
  box-shadow: 0 0 25px rgba(0, 240, 201, 0.5);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 30px;
  color: #fff;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  user-select: none;
  transition: color 0.3s ease;
}

.modal-close:hover {
  color: var(--color-accent);
}

#modal-caption {
  margin-top: 1rem;
  color: #ccc;
  font-size: 1rem;
  max-width: 90%;
  text-align: center;
}

.comparison-section {
  max-width: 720px;
  margin: 3rem auto;
  padding: 1rem;
  background: #121212;
  border-radius: 20px;
  box-shadow: 0 0 25px rgba(0, 240, 201, 0.3);
  color: #e0e0e0;
}

.comparison-section h2 {
  text-align: center;
  margin-bottom: 2rem;
  color: #00f0c9;
}
.chart-container {
  position: relative;
  width: 100%;
  max-width: 720px;
  height: 0;
  padding-bottom: 56.25%;
  margin: 0 auto;
}

.chart-container canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100% !important;
  height: 100% !important;
}