/*=============== VARIABLES CSS ===============*/
:root {
  /*========== Colors ==========*/
  /*Color mode HSL(hue, saturation, lightness)*/
  /*
      Blue: hsl(207, 90%, 61%)
      Purple: hsl(250, 66%, 75%)
      Pink: hsl(356, 66%, 75%)
      Teal: hsl(174, 63%, 62%)
  */
  --hue: 207;
  --sat: 90%;
  --lig: 61%;
  --first-color: hsl(var(--hue), var(--sat), var(--lig));
  --first-color-alt: hsl(var(--hue), var(--sat), 57%); /* -4% */
  --title-color: hsl(var(--hue), 12%, 15%);
  --text-color: hsl(var(--hue), 12%, 45%);
  --text-color-light: hsl(var(--hue), 8%, 75%);
  --text-color-lighten: hsl(var(--hue), 8%, 92%);
  --body-color: hsl(var(--hue), 100%, 99%);
  --container-color: #fff;
  /*========== Font and typography ==========*/
  /*.5rem = 8px | 1rem = 16px ...*/
  --body-font: "Poppins", sans-serif;
  --h2-font-size: 1.25rem;
  --h3-font-size: 1rem;
  --normal-font-size: .938rem;
  --small-font-size: .813rem;
  --smaller-font-size: .75rem;
}
@media screen and (min-width: 968px) {
  :root {
    --h2-font-size: 1.5rem;
    --h3-font-size: 1.25rem;
    --normal-font-size: 1rem;
    --small-font-size: .875rem;
    --smaller-font-size: .813rem;
  }
}

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

body {
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  background-color: var(--body-color);
  color: var(--text-color);
  transition: 0.3s; /* For animation dark mode */
  overflow-x: hidden;
}

h1, h2, h3 {
  color: var(--title-color);
  font-weight: 600;
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

/*=============== THEME ===============*/
.change-theme {
  position: absolute;
  top: 1.5rem;
  right: 0;
  font-size: 1.25rem;
  color: var(--title-color);
  cursor: pointer;
  transition: 0.3s;
}
.change-theme:hover {
  color: var(--first-color);
}

/*========== Variables Dark theme ==========*/
body.dark-theme {
  --title-color: hsl(var(--hue), 12%, 95%);
  --text-color: hsl(var(--hue), 12%, 75%);
  --body-color: hsl(var(--hue), 40%, 8%);
  --container-color: hsl(var(--hue), 24%, 12%);
}

/*========== 
    Color changes in some parts of 
    the website, in light theme
==========*/
.dark-theme .button__gray {
  background-color: var(--container-color);
}
.dark-theme .button__gray:hover {
  background-color: hsl(var(--hue), 24%, 16%);
}

.dark-theme .filters__content {
  background-color: var(--container-color);
}

.dark-theme::-webkit-scrollbar {
  background-color: hsl(var(--hue), 8%, 16%);
}

.dark-theme::-webkit-scrollbar-thumb {
  background-color: hsl(var(--hue), 8%, 24%);
}

.dark-theme::-webkit-scrollbar-thumb:hover {
  background-color: hsl(var(--hue), 8%, 32%);
}

/*=============== REUSABLE CSS CLASSES ===============*/
.container {
  max-width: 968px;
  margin-left: 1.5rem;
  margin-right: 1.5rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

/*=============== PROFILE ===============*/
.profile {
  position: relative;
  padding-top: 3.5rem;
}
.profile__container {
  row-gap: 2rem;
}
.profile__data {
  display: grid;
  text-align: center;
}
.profile__perfil {
  width: 100px;
  height: 100px;
  background: linear-gradient(180deg, hsla(var(--hue), var(--sat), var(--lig), 1) 0%, hsla(var(--hue), var(--sat), var(--lig), 0.2) 100%);
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.profile__perfil img {
  width: 75px;
}
.profile__border {
  border: 3.5px solid var(--first-color);
  justify-self: center;
  width: 115px;
  height: 115px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin-bottom: 0.75rem;
}
.profile__name {
  font-size: var(--h2-font-size);
}
.profile__profession {
  font-size: var(--smaller-font-size);
  font-weight: 500;
  color: var(--text-color);
  margin-bottom: 1rem;
}
.profile__social {
  display: flex;
  justify-content: center;
  -moz-column-gap: 0.75rem;
       column-gap: 0.75rem;
}
.profile__social-link {
  font-size: 1.25rem;
  color: var(--title-color);
  transition: 0.3s;
}
.profile__social-link:hover {
  color: var(--first-color);
}
.profile__info {
  grid-template-columns: repeat(3, -webkit-max-content);
  grid-template-columns: repeat(3, max-content);
  justify-content: center;
  -moz-column-gap: 2.5rem;
       column-gap: 2.5rem;
}
.profile__info-group {
  text-align: center;
}
.profile__info-number {
  font-size: var(--normal-font-size);
  margin-bottom: 0.25rem;
}
.profile__info-description {
  font-size: var(--smaller-font-size);
  font-weight: 500;
}
.profile__buttons, .profile__buttons-small {
  display: flex;
  align-items: center;
  justify-content: center;
}
.profile__buttons {
  -moz-column-gap: 1rem;
       column-gap: 1rem;
}
.profile__buttons-small {
  -moz-column-gap: 0.25rem;
       column-gap: 0.25rem;
}

/*=============== BUTTONS ===============*/
.button {
  display: inline-flex;
  align-items: center;
  -moz-column-gap: 0.5rem;
       column-gap: 0.5rem;
  background-color: var(--first-color);
  color: #fff;
  padding: 1.15rem 1.5rem;
  border-radius: 0.5rem;
  transition: 0.3s;
  box-shadow: 0 8px 24px hsla(var(--hue), var(--sat), var(--lig), 0.25);
}
.button i {
  font-size: 1.25rem;
}
.button:hover {
  background-color: var(--first-color-alt);
}
.button__small {
  padding: 0.75rem;
  box-shadow: none;
}
.button__gray {
  background-color: var(--text-color-lighten);
  color: var(--title-color);
}
.button__gray:hover {
  background-color: var(--text-color-light);
}

/*=============== FILTERS TABS===============*/
.filters__content {
  margin: 2rem 0 2.5rem;
  background-color: var(--text-color-lighten);
  padding: 0.375rem;
  border-radius: 0.75rem;
  display: flex;
  justify-content: space-between;
  -moz-column-gap: 0.5rem;
       column-gap: 0.5rem;
}
.filters__button {
  width: 100%;
  border: none;
  outline: none;
  padding: 1rem;
  color: var(--title-color);
  font-size: var(--small-font-size);
  font-family: var(--body-font);
  font-weight: 500;
  border-radius: 0.75rem;
  cursor: pointer;
  background-color: transparent;
  transition: 0.3s;
}
.filters__button:hover {
  background-color: var(--body-color);
}

/*=============== PROJECTS ===============*/
.projects__card {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  min-width: 0;
  display: block;
  transition: opacity 0.4s ease;
}
.projects__card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.projects__card:hover .projects__modal {
  bottom: 0;
}
.projects__modal {
  position: absolute;
  width: 100%;
  height: 100%;
  bottom: -100%;
  left: 0;
  background: linear-gradient(180deg, hsla(var(--hue), 24%, 40%, 0.3) 0%, hsla(var(--hue), 24%, 4%, 1) 95%);
  display: grid;
  align-items: flex-end;
  padding: 1.5rem 1.25rem;
  transition: 0.3s;
}
.projects__subtitle, .projects__title {
  color: #fff;
}
.projects__subtitle {
  font-size: var(--smaller-font-size);
}
.projects__title {
  font-size: var(--h3-font-size);
  margin-bottom: 0.75rem;
}
.projects__button {
  padding: 0.5rem;
}
.projects__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 0.25rem;
  margin-bottom: 2rem;
  min-width: 0;
}
.projects__item {
  padding: 0.25rem 0.6rem;
  cursor: pointer;
  white-space: nowrap;
}

.active-projects {
  color: var(--title-color);
  font-family: var(--body-font);
  font-weight: 700;
}

.projects__content {
  overflow: hidden;
  width: 100%;
  min-width: 0;
  grid-template-columns: minmax(0, 1fr);
}

/*=============== SKILLS ===============*/
.skills__content {
  row-gap: 3.5rem;
}
.skills__title {
  font-size: var(--h3-font-size);
  text-align: center;
  margin-bottom: 1.5rem;
}
.skills__box {
  display: flex;
  justify-content: center;
  -moz-column-gap: 3rem;
       column-gap: 3rem;
}
.skills__group {
  display: grid;
  align-content: flex-start;
  row-gap: 1rem;
}
.skills__data {
  display: flex;
  -moz-column-gap: 0.5rem;
       column-gap: 0.5rem;
}
.skills__data i {
  font-size: 1rem;
  color: var(--first-color);
}
.skills__name {
  font-size: var(--normal-font-size);
  font-weight: 500;
  line-height: 18px;
}
.skills__level {
  font-size: var(--smaller-font-size);
}

/* Hide and show projects & skills */
.filters [data-content] {
  display: none;
}

.filters__active[data-content] {
  display: grid;
}

/* Activate button filter */
.filter-tab-active {
  background-color: var(--body-color);
}

/*=============== FOOTER ===============*/
.footer__copy {
  display: block;
  margin: 2.5rem 0 2rem;
  text-align: center;
  font-size: var(--smaller-font-size);
  color: var(--text-color-light);
}

/*=============== SCROLL BAR ===============*/
::-webkit-scrollbar {
  width: 0.6rem;
  border-radius: 0.5rem;
  background-color: hsl(var(--hue), 8%, 66%);
}
::-webkit-scrollbar-thumb {
  background-color: hsl(var(--hue), 8%, 54%);
  border-radius: 0.5rem;
}
::-webkit-scrollbar-thumb:hover {
  background-color: hsl(var(--hue), 8%, 44%);
}

/*=============== BREAKPOINTS ===============*/
/* For small devices */
@media screen and (max-width: 320px) {
  .container {
    margin-left: 1rem;
    margin-right: 1rem;
  }
  .profile__info {
    -moz-column-gap: 1.5rem;
         column-gap: 1.5rem;
  }
  .profile__buttons {
    flex-direction: column;
    row-gap: 1rem;
  }
  .skills__box {
    -moz-column-gap: 1rem;
         column-gap: 1rem;
  }
}
/* For medium devices */
@media screen and (min-width: 576px) {
  .projects__content {
    grid-template-columns: 332px;
    justify-content: center;
  }
  .filters__content {
    width: 332px;
    margin: 3rem auto 2rem;
  }
}
@media screen and (min-width: 776px) {
  .projects__content,
.skills__content {
    grid-template-columns: repeat(2, 332px);
  }
  .skills__content {
    justify-content: center;
    -moz-column-gap: 3rem;
         column-gap: 3rem;
  }
}
/* For large devices */
@media screen and (min-width: 992px) {
  .container {
    margin-left: auto;
    margin-right: auto;
  }
  .change-theme {
    top: 2.5rem;
    right: 2.5rem;
  }
  .profile {
    padding-top: 4rem;
  }
  .profile__border {
    width: 135px;
    height: 135px;
    margin-bottom: 1rem;
  }
  .profile__perfil {
    width: 120px;
    height: 120px;
  }
  .profile__perfil img {
    width: 90px;
  }
  .profile__profession {
    margin-bottom: 1.5rem;
  }
  .profile__info {
    -moz-column-gap: 3rem;
         column-gap: 3rem;
  }
  .profile__info-description {
    font-size: var(--small-font-size);
  }
  .profile__buttons {
    -moz-column-gap: 2rem;
         column-gap: 2rem;
  }
  .projects__content {
    gap: 2rem 3rem;
  }
  .projects__modal {
    padding: 1.5rem;
  }
  .skills__title {
    font-size: var(--normal-font-size);
    margin-bottom: 2.5rem;
  }
  .footer__copy {
    margin: 4.5rem 0 2.5rem;
  }
}

/* =============== FOCUS INDICATORS =============== */
a:focus-visible,
button:focus-visible,
[role="button"]:focus-visible {
    outline: 2px solid var(--first-color);
    outline-offset: 3px;
    border-radius: 4px;
}

/* =============== SKELETON LOADING =============== */
.skeleton {
    background: #e1e1e1; /* Color base gris */
    background: linear-gradient(90deg, #ececec 8%, #f5f5f5 18%, #ececec 33%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: .5rem;
}

/* Animación del brillo */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Estilos específicos para las partes de la tarjeta falsa */
.skeleton-card {
    /* Mantiene el layout del grid aunque esté vacía */
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skeleton-img {
    width: 100%;
    height: 200px; /* Altura aproximada de tus imágenes */
    display: block;
}

.skeleton-text {
    height: 1rem;
    width: 70%;
    margin-top: 0.5rem;
}

.skeleton-title {
    height: 1.5rem;
    width: 90%;
    margin-top: 0.25rem;
}

/* Modo oscuro para el skeleton (Opcional, si usas tema oscuro) */
body.dark-theme .skeleton {
    /* 1. Fondo base más oscuro para que contraste con el resto de la tarjeta */
    background-color: #1a1a1a;

    /* 2. El truco: El color del medio (#444) es mucho más claro que el fondo */
    background-image: linear-gradient(
        90deg, 
        #1a1a1a 0%, 
        #444444 50%, /* <-- Este es el brillo. Lo hicimos más claro */
        #1a1a1a 100%
    );
    
    /* 3. A veces en modo oscuro el brillo se ve muy "duro", 
       podemos suavizarlo con un poco de opacidad si es necesario, 
       pero prueba primero sin esto */
}