:root {
  --bg: #0b1020;
  --bg-soft: #111831;
  --surface: #16213d;
  --surface-2: #1d2a4d;
  --text: #f4f7fb;
  --muted: #b9c3d8;
  --accent: #4dd0e1;
  --accent-strong: #24b6c7;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
  --radius: 20px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background:
    radial-gradient(circle at top, rgba(77, 208, 225, 0.16), transparent 30%),
    linear-gradient(180deg, var(--bg) 0%, #0e152a 100%);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: var(--accent);
  color: #001018;
  font-weight: 700;
  z-index: 1000;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(11, 16, 32, 0.8);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--muted);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.hero {
  padding: 5rem 0 3rem;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 1.5rem;
  align-items: stretch;
}

.hero__content,
.hero__card,
.project-card,
.skill-card,
.contact-panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

.hero__content {
  position: relative;
  padding: clamp(1.5rem, 4vw, 3rem);
  z-index: 0;
}

/* Contenedor de la luz: solo deja visible el anillo del borde */
.hero__glow {
  position: absolute;
  inset: -3px;
  border-radius: inherit;
  padding: 4px;
  overflow: hidden;
  pointer-events: none;
  z-index: -1;
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
          mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
}

/* Luz fosforescente azul que gira por el borde (sharp + glow) */
.hero__glow::before,
.hero__glow::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 250%;
  aspect-ratio: 1 / 1;
  transform: translate(-50%, -50%);
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    transparent 220deg,
    rgba(77, 208, 225, 0.15) 250deg,
    var(--accent) 320deg,
    #d6fbff 350deg,
    transparent 360deg
  );
  animation: hero-border-spin 7s linear infinite;
}

/* Capa difuminada para el resplandor fosforescente */
.hero__glow::after {
  filter: blur(6px) brightness(1.4);
}

@keyframes hero-border-spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.eyebrow,
.section__eyebrow,
.hero__card-label {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: 1.02;
  max-width: 12ch;
  margin-bottom: 1rem;
}

.hero__text,
.section__text,
.project-card p,
.skill-card p {
  color: var(--muted);
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.8rem 1.25rem;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.button:hover,
.button:focus-visible,
.project-card a:hover,
.project-card a:focus-visible,
.contact-links a:hover,
.contact-links a:focus-visible {
  transform: translateY(-2px);
}

.button--primary {
  background: var(--accent);
  color: #001018;
}

.button--primary:hover,
.button--primary:focus-visible {
  background: var(--accent-strong);
}

.button--secondary {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.hero__card {
  position: relative;
  overflow: hidden;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: start;
  gap: 1rem;
  background: linear-gradient(180deg, rgba(77, 208, 225, 0.12), rgba(255, 255, 255, 0.03));
}

/* Luz azul fija en la esquina derecha del div de habilidades destacadas */
.hero__card::after {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 65%);
  filter: blur(10px);
  opacity: 0.55;
  pointer-events: none;
}

.hero__photo {
  display: flex;
  justify-content: center;
}

.hero__photo img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  box-shadow: var(--shadow);
}

.hero__meta {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.hero__meta li {
  margin-bottom: 0.85rem;
}

.hero__meta li:last-child {
  margin-bottom: 0;
}

.section {
  padding: 2rem 0 4rem;
}

.section--alt {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section__grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 1.5rem;
  align-items: start;
}

.section__heading {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
}

.project-card {
  overflow: hidden;
}

.project-card__visual {
  position: relative;
  min-height: 180px;
  overflow: hidden;
}

.project-card__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Mientras no haya imagen (src vacío) se muestra solo el degradado */
.project-card__img[src=""] {
  display: none;
}

.project-card__visual--one {
  background: linear-gradient(135deg, #1b2a4b, #4dd0e1);
}

.project-card__visual--two {
  background: linear-gradient(135deg, #243b6b, #7c4dff);
}

.project-card__visual--three {
  background: linear-gradient(135deg, #11324d, #12c2e9);
}

.project-card__body,
.skill-card {
  padding: 1.25rem;
}

.project-card a {
  display: inline-flex;
  margin-top: 0.75rem;
  color: var(--accent);
  font-weight: 700;
}

.skill-card {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.skill-card h3 {
  margin: 0;
  text-align: center;
}

.skill-icons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  align-content: flex-start;
  gap: 0.6rem;
}

.skill-icon {
  position: relative;
  display: inline-flex;
}

.skill-icons img {
  width: 48px;
  height: 48px;
  padding: 8px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border);
  object-fit: contain;
  transition: transform 160ms ease;
}

.skill-icon:hover img {
  transform: translateY(-3px);
}

/* Iconos aún sin imagen (src vacío) no se muestran */
.skill-icons img[src=""] {
  display: none;
}

/* Tooltip con el nombre del icono */
.skill-icon::after {
  content: attr(data-name);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 0.35rem 0.6rem;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
  z-index: 5;
}

.skill-icon:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.section--contact {
  padding-bottom: 5rem;
}

.contact-panel {
  padding: clamp(1.5rem, 4vw, 2.5rem);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
}

.contact-links {
  display: grid;
  gap: 0.75rem;
}

.contact-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
}

.site-footer {
  padding: 1.5rem 0 2rem;
  border-top: 1px solid var(--border);
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero__grid,
  .section__grid,
  .projects-grid,
  .skills-grid,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }
}

@media (max-width: 640px) {
  .header__inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 0;
  }

  .hero {
    padding-top: 3rem;
  }

  .site-nav {
    gap: 0.75rem 1rem;
  }
}

/* ===== Animaciones generales ===== */

/* Aparición al hacer scroll */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Escalonado para elementos dentro de una grilla */
.reveal.is-visible:nth-child(2) {
  transition-delay: 0.1s;
}

.reveal.is-visible:nth-child(3) {
  transition-delay: 0.2s;
}

.reveal.is-visible:nth-child(4) {
  transition-delay: 0.3s;
}

/* Fade de entrada del hero al cargar */
.hero__content,
.hero__card {
  animation: fade-in 0.9s ease both;
}

.hero__card {
  animation-delay: 0.15s;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Hover suave en las tarjetas */
.project-card,
.skill-card {
  transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.6s ease;
}

.project-card:hover,
.skill-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 50px rgba(0, 0, 0, 0.35);
}

/* Zoom suave a la imagen del proyecto al pasar el mouse */
.project-card__img {
  transition: transform 0.4s ease;
}

.project-card:hover .project-card__img {
  transform: scale(1.06);
}

/* Subrayado animado en los enlaces del menú */
.site-nav a {
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

/* ===== Título "Las Personas son Tesoros": brillo dorado tipo tesoro ===== */
.title-treasure {
  display: inline-block;
  background: linear-gradient(
    100deg,
    var(--accent) 0%,
    var(--accent) 35%,
    #ffe27a 50%,
    var(--accent) 65%,
    var(--accent) 100%
  );
  background-size: 220% 100%;
  background-position: 100% 0;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: treasure-shine 4.5s ease-in-out infinite;
}

@keyframes treasure-shine {
  0% {
    background-position: 130% 0;
  }
  60%,
  100% {
    background-position: -30% 0;
  }
}

/* Al pasar el mouse: el brillo se acelera y crece un poco */
.title-treasure:hover {
  animation-duration: 1.2s;
  transform: scale(1.03);
  transition: transform 0.3s ease;
}

/* ===== Título "Contacto Telefono": parpadeo/pulso de etiqueta ===== */
.contact-phone-label {
  display: inline-block;
  margin-bottom: 1.25rem;
  animation: label-pulse 2.6s ease-in-out infinite;
}

@keyframes label-pulse {
  0%,
  100% {
    opacity: 0.7;
    letter-spacing: normal;
  }
  50% {
    opacity: 1;
    letter-spacing: 1px;
    text-shadow: 0 0 12px rgba(77, 208, 225, 0.5);
  }
}

.contact-phone-label:hover {
  animation-duration: 1s;
}

/* ===== Número de teléfono: pulso/vibración tipo llamada ===== */
.phone-number {
  display: inline-block;
  transform-origin: center;
  animation: phone-ring 3.2s ease-in-out infinite;
  cursor: pointer;
}

/* Al pasar el mouse: suena de inmediato y se ilumina */
.phone-number:hover {
  animation: phone-ring 0.8s ease-in-out infinite;
  color: var(--accent);
  transition: color 0.3s ease;
}

@keyframes phone-ring {
  0%,
  82%,
  100% {
    transform: rotate(0deg);
    text-shadow: 0 0 0 rgba(77, 208, 225, 0);
  }
  84% {
    transform: rotate(-6deg);
    text-shadow: 0 0 14px rgba(77, 208, 225, 0.55);
  }
  86% {
    transform: rotate(6deg);
  }
  88% {
    transform: rotate(-5deg);
  }
  90% {
    transform: rotate(5deg);
  }
  92% {
    transform: rotate(-3deg);
  }
  94% {
    transform: rotate(3deg);
    text-shadow: 0 0 14px rgba(77, 208, 225, 0.55);
  }
  96% {
    transform: rotate(0deg);
    text-shadow: 0 0 0 rgba(77, 208, 225, 0);
  }
}

/* Respeta a quienes prefieren menos movimiento */
@media (prefers-reduced-motion: reduce) {
  .title-treasure,
  .contact-phone-label,
  .phone-number {
    animation: none;
  }
}