:root {
  --blue: #121bcd;
  --light-blue: #8191C5;
  --dark-blue: #070d85;
  --pale-gray: #D9D9D9;
  --very-light-gray-bg: #fafafa;
  --very-light-gray: #f0f0f0;
  --light-gray: rgb(153 153 153 / 20%);
  --gray: #666;
  --dark-gray: #333;
  --width: 720px;
  --dark-bg: #1c2526;
  --dark-text: #e0e0e0;
  --dark-secondary-bg: #2a2f30;
  --dark-gray-bg: #2a2f30e6;
}
* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Source Sans 3", sans-serif;
  font-size: 17px;
  line-height: 2;
}
li {
  list-style: none;
}
a {
  text-decoration: none;
  color: black;
}
.dark a {
  color: white;
}
button {
  border: none;
  cursor: pointer;
}
h2 {
  font-size: 2.2rem;
  margin-bottom: 60px;
  letter-spacing: 3px;
  text-align: center;
  position: relative;
}
h2::after {
  position: absolute;
  content: "";
  width: 3%;
  height: 7px;
  background-color: var(--blue);
  bottom: -30px;
  right: 50%;
  transform: translateX(50%);
  border-radius: 10px;
}
h3 {
  font-size: 1.7rem;
}

.dark {
  background-color: var(--dark-bg);
  color: var(--dark-text);
}
.container {
  max-width: 120rem;
  margin: auto;
  width: 84%;
}
.pad {
  padding: 5rem 0;
}
.overlay {
  position: absolute;
  background-color: var(--very-light-gray-bg);
  opacity: .6;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
.dark .overlay {
  background-color: var(--dark-secondary-bg);
}
.project .desc button, form button {
  background-color: var(--blue);
  padding: 10px 20px;
  color: white;
  border-radius: 4px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 2px;
  transition: 0.3s ease;
}
.project .desc button:hover, form button:hover {
  background-color: var(--dark-blue);
  transform: translateY(-3px);
}


header {
  padding: 15px 0;
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
nav .logo {
  font-weight: 600;
  font-size: 20px;
}
.links-container {
  text-align: right;
}
.links-container ul {
  display: flex;
  gap:30px;
}
.links-container.open ul {
  top: 70px;
}
.links-container ul li {
  position: relative;
}
.links-container ul li::after {
  position: absolute;
  content: "";
  background-color: var(--blue);
  bottom: -17px;
  left: 0;
  width: 0;
  height: 3px;
  transition: .5s;
}
.links-container ul li:hover::after, .links-container ul li.active::after {
  width: 100%;
}
.links-container ul li.active a, .links-container ul li:hover a {
  color: var(--blue);
}

.links-container .toggle-menu {
  display: none;
  width: 30px;
  position: relative; 
  z-index: 15;
  margin-top: -5px;
  height: 20px;
  background: transparent;
}
.links-container .toggle-menu:focus {
  outline: none;
}
.links-container .toggle-menu span {
  height: 2px;
  width: 100%;
  background-color: black;
  border-radius: 10px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  transition: .3s ease;
}
.dark .links-container .toggle-menu span {
  background-color: white;
}
.links-container .toggle-menu span:last-of-type {
  margin-top: 10px;
}
.links-container.open .toggle-menu span:first-of-type {
  transform: translate(-50%, -50%) rotate(45deg);
}
.links-container.open .toggle-menu span:last-of-type {
  transform: translate(-50%, -50%) rotate(-45deg);
  margin-top: 0;
}



.mode-toggle {
  background-color: white;
  width: 50px;
  height: 50px;
  position: fixed;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  right: 20px;
  bottom: 20px;
  box-shadow: 0px 0px 20px 5px var(--light-gray);
  z-index: 10;
}
.mode-toggle i {
  transition: .3s;
}
.mode-toggle i:first-of-type {
  display: none;
  color: white;
}
.dark .mode-toggle i:first-of-type {
  display: block;
}
.dark .mode-toggle i:last-of-type {
  display: none;
}
.mode-toggle i:last-of-type {
  color: black;
}
.mode-toggle:hover i {
  color: var(--blue);
}
.dark .mode-toggle {
  background-color: var(--dark-secondary-bg);
  box-shadow: 0px 0px 20px 5px hsl(0deg 0% 20% / 40%);
}

#home {
  margin: auto;
  height: calc(100vh - 50px);
  background-image: url(../imgs/backgr.svg);
  position: relative;
}
#home .socials {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
}
#home .socials li {
  width: 40px;
  height: 44px;
  display: flex;
  justify-content: center;
  align-items: center;
}
#home .socials li a i {
  font-size: 20px;
  transition: .3s;
}
#home .text {
  position: absolute;
  max-width: 650px;
  width: 100%;
  left: 50%;
  top: 50%;
  text-align: center;
  transform: translate(-50%, -50%);
}
#home .text h1 {
  font-size: 4rem;
}
#home .text h1 span {
  position: relative;
  display: inline-block;
  color: transparent;
  background-image: linear-gradient(140deg, var(--dark-blue), #7ca2fb, #0072ff, var(--dark-blue));
  background-size: 300%;
  background-clip: text;
  animation: aurora 12s ease-in-out infinite;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
#home .text p {
  color: var(--dark-gray);
  font-size: 1.3rem;
  padding: 25px 0 45px;
}
.dark #home .text p {
  color: white;
}
@keyframes aurora {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 300% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}


#about {
  background-color: var(--very-light-gray-bg);
  text-align: center;
}
.dark #about {  
  background-color: var(--dark-gray-bg);
}
#about p {
  max-width: var(--width);
  width: 100%;
  margin: 0 auto 15px;
}
#about p a {
  color: var(--blue);
  font-weight: bold;
}
#about p a:hover {
  color: var(--dark-blue);
  text-decoration: underline;
} 
#about h3 {
  margin: 30px 0 20px;
}
#about article {
  display: flex;
  gap: 40px;
  justify-content: center;
  align-items: center;
}
#about article .img {
  background-color: var(--light-gray);
  width: 55px;
  height: 55px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 4px;
  transition: .2s;
}
#about article .img i {
  font-size: 2rem;
}
.img:hover .html {
  color: #e34f26;
}
.img:hover .css {
  color: #2965F1;
}
.img:hover .js {
  color: #f7df1e;
}
.img:hover .sass {
  color: #CD6799;
}
.img:hover .git {
  color: #bd2c00;
}


h2 + p {
  max-width: var(--width);
  width: 100%;
  margin: 0 auto 30px;
  text-align: center;
}
h2 + p a {
  color: var(--blue);
  font-weight: bold;
}
h2 + p a:hover {
  color: var(--dark-blue);
  text-decoration: underline;
} 


#projects article {
  display: grid;
  gap: 100px;
}
.project {
  background-repeat: no-repeat;
  background-position: 50%;
  background-size: cover;
  max-width: var(--width);
  width: 100%;
  padding: 70px;
  display: block;
  opacity: 1;
  height: 410px;
  background-color: #1c1d25;
  position: relative;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transition: all .35s ease;
  color: white;
}
.project::before, .project::after {
  position: absolute;
  content: "";
  left: 0;
  top: 0;
  height: 100%; 
  display: block; 
  z-index: 2;
}
.project::before {
  width: 100%;
  background: #1c1d25;
  opacity: .6;
} 
.dark .project::before {
  opacity: 0.8;
}
.project::after {
  width: 0;
  background-image: linear-gradient(45deg, #121bcd, black);
  opacity: .7;
  transition: width .5s ease;
} 
.project:hover::after {
  width: 100%;
}
.project.right {
  margin-left: auto;
} 
.project.left {
  margin-right: auto;
} 
.project .desc {
  position: relative;
  z-index: 3;
  transform: translateY(-50%);
  bottom: -50%;
}
.project .desc h3 {
  font-size: 2rem;
  transition: font-size .5s ease;
}
.project:hover .desc h3 {
  font-size: 3rem;
  line-height: 1;
}
.project .desc p {
  margin: 20px 0;
}
.project .desc .tech-used {
  display: none;
  margin-bottom: 20px;
  opacity: 0;
  transition: 0.5s;
}
.project:hover .desc .tech-used {
  display: block;
  opacity: 1;
}
.project .desc .tech-used span {
  background-color: rgb(255 255 255 / 20%);
  padding: 4px 8px;
  border-radius: 20px;
  font-size: 15px;
  margin-right: 5px;
  transition: .5s;
}
.project .desc button:hover {
  box-shadow: rgb(28 29 37 / 21%) 0px 5px 24px 2px;
}
.project .desc .links a {
  color: white;
}
.project .desc .links i {
  margin-left: 20px;
}


#blogs {
  background-color: var(--very-light-gray-bg);
}
.dark #blogs {
  background-color: var(--dark-gray-bg);
}
#blogs article {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
#blogs article .article {
  position: relative;
  border-radius: 0.625rem;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: 0.3s ease;
}

#blogs .article:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}
.article img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: 0.3s ease;
}
.article:hover img {
  filter: brightness(80%) sepia(20%);
}
.article .desc {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  padding: 15px;
  max-height: 80px; 
  overflow: hidden;
  transition: max-height 0.5s ease;
}
.dark .article .desc {
  background: var(--dark-text);
}
.article:hover .desc {
  max-height: 100%;
}
.article .desc a {
  color: var(--blue);
  font-weight: 600;
  display: block;
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.4;
}
.article .desc a:hover {
  color: var(--dark-blue);
}
.article .desc p {
  color: var(--gray);
  font-size: 15px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  margin-top: 8px;
}
.article:hover .desc p {
  opacity: 1;
  transform: translateY(0);
}

#contact {
  background-image: url(../imgs/backgr.svg);
  position: relative;
}
#contact h2, #contact p, form {
  position: relative;
}
#contact p {
  text-align: center;
}
form {
  background-color: white;
  display: grid;
  max-width: var(--width);
  width: 100%;
  margin: auto;
  padding: 30px;
  gap: 20px;
  box-shadow: rgba(149, 157, 165, 0.2) 0px 8px 24px;
  border-radius: 5px;
  margin-top: 50px;
}
.dark form {
  background-color: var(--dark-bg);
}
form label input,
form label textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--light-gray);
  background-color: var(--very-light-gray);
  border-radius: 4px;
  margin-top: 10px;
  caret-color: var(--blue);
}
.dark form label input,
.dark form label textarea {
  background-color: var(--gray);
  color: white;
}
form label textarea {
  height: 130px;
}
form label :last-child:hover ,
form label :last-child:focus {
  background-image: linear-gradient(var(--very-light-gray)), linear-gradient(90deg, var(--blue) 0%, rgba(166, 181, 222, 1) 52%);
  border: 2px solid transparent;
  background-origin: border-box;
  background-clip: padding-box, border-box;
  outline: none;
}
form label :last-child:focus {
  background-image: linear-gradient(white), linear-gradient(90deg, var(--blue) 0%, rgba(166, 181, 222, 1) 52%);
} 
.dark form label :last-child:hover ,
.dark form label :last-child:focus {
  background-image: linear-gradient(var(--gray)), linear-gradient(90deg, var(--blue) 0%, rgba(166, 181, 222, 1) 52%);
}
.dark form label :last-child:focus {
  background-image: linear-gradient(#bfbfbf), linear-gradient(90deg, var(--blue) 0%, rgba(166, 181, 222, 1) 52%);
} 
form button {
  margin-left: auto;
}
form button:hover {
  box-shadow: rgb(28 29 37 / 21%) 0px 5px 10px 0px;
}

footer {
  background-color: black;
  color: white;
}
footer .info {
  display: flex;
  justify-content: space-between;
  padding: 60px 0;
}
footer .info .left {
  width: 50%;
}
footer .info h3 {
  margin-bottom: 20px;
}
footer .info .socials {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: center;
}
footer .socials i {
  color: white;
  transition: .3s;
}
.socials i:hover {
  scale: 1.3;
}
.socials i.gmail:hover {
  color: #EA4335;
}
.socials i.linkedin:hover {
  color: #0a66c2;
}
.socials i.github:hover {
  color: #333;
}
.socials i.dev:hover, .socials i.x-twitter:hover, .socials i.codepen:hover {
  color: #14171a;
}
footer .atribute {
  text-align: center;
  border-top: 1px solid;
  padding: 20px;
}




@media (max-width: 800px) {
  #home ul {
    display: none;
  }
  .project:hover .desc h3 {
    font-size: 2.4rem;
  }
}
@media (max-width: 700px) {
  body {
    font-size: 16px;
  }
  #home .text {
    width: 84%;
  }
  #home .text h1 {
    font-size: 3.3rem;
  }
  #home .text p {
    font-size: 1.2rem;
  }
}
@media (max-width: 600px) {
  .project {
    padding: 40px;
  }
  footer .info {
    padding: 30px 0;
    flex-direction: column;
    text-align: center;
    gap: 40px;
  }
  footer .info .left {
    width: fit-content;
  }
}
@media (max-width: 530px) {
  .pad {
    padding: 4rem 0;
  }
  .container {
    width: 90%;
  }
  .links-container ul {
    display: none;
  }
  .links-container ul {
    background-color: white;
    width: 100%;
    top: -350px;
    right: 0;
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: .3s ease;
    z-index: 10;
    box-shadow: 0px 28px 30px rgb(28 29 37 / 8%);
    padding: 17px;
  }
  .dark .links-container ul {
    background-color: var(--dark-bg);
  }
  .links-container .toggle-menu {
    display: block;
  }
  .project {
    height: 460px;
    padding: 30px;
  }
  .project:hover .desc h3 {
    font-size: 2.1rem;
  }
}
@media (max-width: 460px) {
  #home .text h1 {
    font-size: 2.5rem;
  }
  #home .text p {
    font-size: 1.1rem;
  }
  #about article {
    justify-content: space-between;
    gap: 0;
  }
  h2 {
    font-size: 2rem;
  }
}
@media (max-width: 400px) {
  .project {
    height: 500px;
  }
  #projects article {
    gap: 70px;
  }
  form {
    padding: 20px;
  }
}