.logo-gradient {
  background: linear-gradient(90deg, var(--orange), var(--sky));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
  font-weight: 800;
  font-size: 2.7rem;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}
.ia-gradient {
  background: linear-gradient(90deg, var(--sky), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
  font-weight: 700;
}
.glass-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.03));
  border: var(--border-glass);
  border-radius: 18px;
  backdrop-filter: blur(8px) saturate(1.2);
  box-shadow: var(--shadow-strong);
  transition: transform 0.3s, box-shadow 0.3s;
}
.glass-card:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 16px 48px rgba(10,12,16,0.8);
}
.card-padding {
  padding: 2.5rem 2rem;
}
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s forwards;
}
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: none;
  }
}
.pulse {
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--orange); }
  70% { box-shadow: 0 0 0 10px rgba(254,114,17,0); }
  100% { box-shadow: 0 0 0 0 rgba(254,114,17,0); }
}
.icon {
  font-size: 1.3em;
  margin-right: 0.5em;
  vertical-align: middle;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap');
:root {
  --dark: #2A3340;
  --orange: #FE7211;
  --sky: #4899DE;
  --white: #FFFFFF;
  --black: #000000;
  --dark-panel: linear-gradient(90deg, rgba(20, 20, 20, 0.95), rgba(35, 35, 35, 0.9));
  --glass: rgba(255, 255, 255, 0.06);
  --glass-strong: rgba(255, 255, 255, 0.1);
  --glass-dark: rgba(7, 7, 7, 0.4);
  --glass-light: rgba(255, 255, 255, 0.03);
  --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-strong: 0 10px 40px rgba(10, 12, 16, 0.6);
  --border-glass: 1px solid rgba(255, 255, 255, 0.06);
  --border-glass-light: 1px solid rgba(255, 255, 255, 0.04);
}

body {
  margin: 0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--white);
  background: var(--dark);
  min-height: 100vh;
}
.app-background {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: url('img/portada.jpg') center center/cover no-repeat fixed;
  filter: saturate(0.95) contrast(1.05) brightness(0.7);
  transition: background-image 0.5s ease-in-out;
}
.app-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(42, 51, 64, 0.55) 0%, rgba(9, 12, 16, 0.4) 60%);
}
@media (max-width: 768px) and (orientation: portrait), (max-width: 480px) {
  .app-overlay {
    background: linear-gradient(180deg, rgba(42, 51, 64, 0.6) 0%, rgba(9, 12, 16, 0.5) 100%);
  }
}
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
header.hero {
  background: var(--dark-panel);
  color: var(--white);
  padding: 4rem 0 3rem 0;
  text-align: center;
}
header .subtitle {
  font-size: 1.3rem;
  margin-top: 1rem;
  margin-bottom: 2rem;
}
.cta {
  display: inline-block;
  background: var(--orange);
  color: var(--white);
  padding: 0.8rem 2rem;
  border-radius: 30px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.2s;
}
.cta:hover {
  background: var(--sky);
}
section {
  padding: 3rem 0;
}
section h2 {
  color: var(--sky);
  margin-bottom: 1.5rem;
}
.about p {
  font-size: 1.1rem;
}
.services ul {
  list-style: none;
  padding: 0;
}
.services li {
  background: var(--glass);
  margin-bottom: 0.7rem;
  padding: 0.7rem 1rem;
  border-radius: 8px;
  font-size: 1.05rem;
}
.portfolio .projects {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.project {
  background: var(--glass-light);
  border: var(--border-glass);
  border-radius: 10px;
  padding: 1.2rem;
  flex: 1 1 300px;
  box-shadow: var(--shadow-light);
}
.contact form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 400px;
  margin: 0 auto;
}
.contact input, .contact textarea {
  padding: 0.7rem;
  border: 1px solid var(--glass-strong);
  border-radius: 6px;
  font-size: 1rem;
  background: var(--glass-dark);
  color: var(--white);
}
.contact button {
  background: var(--sky);
  color: var(--white);
  border: none;
  padding: 0.8rem;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}
.contact button:hover {
  background: var(--orange);
}
#formMessage {
  margin-top: 1rem;
  color: var(--orange);
  font-weight: bold;
}
footer {
  background: var(--dark-panel);
  color: var(--white);
  text-align: center;
  padding: 1.2rem 0;
  margin-top: 2rem;
}
@media (max-width: 700px) {
  .portfolio .projects {
    flex-direction: column;
    gap: 1rem;
  }
  header.hero {
    padding: 2.5rem 0 2rem 0;
  }
  section {
    padding: 2rem 0;
  }
}
.app-background, .app-overlay {
  pointer-events: none;
}