/* portfolio styles */
/* ================================================ */
/* variables */
:root {
  --bcg-clr: #f5effa;
  --light-cont-shade: #ddd;
  --dark-cont-shade: #fff;

  --purple: #800080;
  --box-shadow: #9f459fcc;
  --plum: #dda0dd;
  --cta-col: #008b8b;
  --txt-black: #000;
  --txt-white: #ffffff;
  --txt-all-white: #ffffff;
  --transparent-white: #ffffffcb;

  --error-clr: #cf231099;
  --error-brd: #cf2310;

  --vector: url("./images/intro-vct.svg");

}

.dark-theme {
  --bcg-clr: #111;
  --cont-shade: #1c1c1c;
  --dark-cont-shade: #222323;

  --purple: #900080;
  --box-shadow: #9f459f;
  --plum: #dda0dd;
  --cta-col: #008b8b;
  --txt-black: #fff;
  --txt-white: #000;
  --txt-all-white: #ffffff;
  --transparent-white: #ffffffcb;

  --error-clr: #cf231099;
  --error-brd: #cf2310;
}

/* ================================================ */
* {
  padding: 0;
  margin: 0;
}

html{
  scroll-behavior: smooth;
}

body {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  overflow-x: hidden;
  background-color: var(--bcg-clr);
  scroll-behavior: smooth;
}

/* ================================================ */
/* animations */
@keyframes toggler-slide-in {
  from {
    left: 100%;
    opacity: 0;
  }
  to {
    left: calc(100% - 50px);
    opacity: 1;
  }
}
@keyframes toggler-slide-out {
  from {
    left: calc(100% - 50px);
    opacity: 1;
  }
  to {
    left: 100%;
    opacity: 0;
  }
}

@keyframes type-writter {
  0% {
    width: 0px;
  }
  70% {
    width: 268px;
  }
  90% {
    width: 268px;
  }
  100% {
    width: 0px;
  }
}

@keyframes blink-cursor {
  0% {
    border-right: none;
  }
  100% {
    border-right: 2px solid black;
  }
}

@keyframes shadow-txt {
  0% {
    text-shadow: 0 0 4px red;
  }
  20% {
    text-shadow: 0 0 4px orange;
  }
  40% {
    text-shadow: 0 0 4px pink;
  }
  60% {
    text-shadow: 0 0 4px purple;
  }
  80% {
    text-shadow: 0 0 4px blue;
  }
  100% {
    text-shadow: 0 0 4px lightblue;
  }
}

@keyframes box-shadow {
  0% {
    box-shadow: 3px 5px 14px red;
  }
  20% {
    box-shadow: 3px 5px 14px orange;
  }
  40% {
    box-shadow: 3px 5px 14px pink;
  }
  60% {
    box-shadow: 3px 5px 14px purple;
  }
  80% {
    box-shadow: 3px 5px 14px blue;
  }
  100% {
    box-shadow: 3px 5px 14px lightblue;
  }
}

@keyframes border-col {
  0% {
    text-shadow: 0 0 4px red;
  }
  20% {
    text-shadow: 0 0 4px orange;
  }
  40% {
    text-shadow: 0 0 4px pink;
  }
  60% {
    text-shadow: 0 0 4px purple;
  }
  80% {
    text-shadow: 0 0 4px blue;
  }
  100% {
    text-shadow: 0 0 4px lightblue;
  }
}

@keyframes planet {
  0% {
    /* scale: 1.02; */
    width: 80px;
    height: 80px;
  }
  50% {
    /* scale: 1; */
    width: 70px;
    height: 70px;
  }
  100% {
    /* scale: 1.02; */
    width: 80px;
    height: 80px;
  }
}

@keyframes slide-appear {
  from {
    opacity: 0;
    transform: translateX(-1200px);
  }
  to {
    opacity: 1;
    transform: translateX(-1200px);
  }
}

@keyframes animate-appear {
  from {
    opacity: 0;
    scale: 0.5;
  }
  to {
    opacity: 1;
    scale: 1;
  }
}

/* ================================================ */
/* header section */
#container{
  width: 100vw;
  position: relative;
  overflow-x: hidden;
}
#container .header {
  display: flex;
  align-items: center;
  width: 100vw;
  box-shadow: 0 4px 8px var(--box-shadow);
  position: fixed;
  z-index: 999;
  backdrop-filter: blur(35px);
}

#container .header .logo {
  display: flex;
  align-items: center;
  margin-left: 2rem;
}

#container .header .logo a{
  text-decoration: none;
}
#container .header .logo a h4#name-abr {
  padding: 5px 10px;
  margin-left: 1vw;
  font-size: 45px;
  font-style: italic;
  font-weight: bold;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--purple);
}

#container .header .logo h4 {
  font-family: Arial;
  font-size: 26px;
  font-weight: lighter;
  color: var(--txt-black);
}
#container .header .logo h4 span {
  color: var(--purple);
  font-size: 40px;
}


#container .header .nav-links {
  display: flex;
  align-items: center;
  justify-content:end;
  width: 72%;
}

#container .header .nav-links nav ul {
  list-style: none;
  display: flex;
  justify-content: space-around;
}

#container .header .nav-links nav ul li a {
  text-decoration: none;
  color: var(--txt-black);
  font-family: Arial;
  font-size: 16px;
  margin: 20px;
  padding-bottom: 3px;
  transition: 0.03s ease;
}
#container .header .nav-links nav ul li a:hover {
  color: var(--purple);
  padding-left: 3px;
  border-bottom: 2px solid var(--purple);
}

#container .header .cv {
  width: 50px;
  border: none;
  padding: 3px 5px;
  border-radius: 15px;
  background-color: var(--purple);
  transition: 0.03s ease;
}
#container .header .cv:hover {
  background-color: var(--plum);
  border: 1px solid var(--purple);
  cursor: pointer;
}
#container .header .cv a {
  text-decoration: none;
  font-size: 14px;
  color: var(--txt-white);
}

#container .header .theme {
  width: 27px;
  height: 27px;
  border-radius: 15px;
  margin-left: 20px;
  color: var(--txt-white);
  padding: 2px 2px;
}

/* ================================================ */
/* toggler and theme palette */
#toggler{
  position: relative;
  top: 60px;
  left: 100%;
  padding: 3px 2px;
  animation: toggler-slide-out 0.5s ease 1 forwards;
  z-index: 1;
}
#toggler.animate{
  animation: toggler-slide-in 0.5s ease 1 forwards;
}
#toggler .inactive{
  animation: toggler-slide-out 0.5s ease 1 forwards;
}
#theme{
  display: flex;
  flex-direction: column;
  padding: 4px 7px;
  /* box-shadow: 0 0 10px var(--purple); */
  border: 0.5px solid var(--purple);
  border-radius: 5px;
  opacity: 1;
  position: absolute;
  left: -22px;
}
#theme-palette {
  display: flex;
  flex-direction: column;
  position: absolute;
  padding: 5px 5px;
  /* box-shadow: 0 0 10px var(--purple); */
  border: 0.5px solid var(--purple);
  border-radius: 5px;
  top: 68px;
}

#theme .color {
  width: 40px;
  height: 20px;
  border-radius: 5px;
  margin: 4px 0px;
  border: none;
  transition: 0.03s ease;
  color: var(--txt-all-white);
}
#theme-palette .color{
  width: 20px;
  height: 20px;
  border-radius: 10px;
  margin: 4px 0px;
  border: none;
  transition: 0.03s ease;
}
#theme-palette .color:hover, #theme .color:hover {
  cursor: pointer;
  scale: 1.04;
}

#theme-palette .red {
  background-color: #ff003c;
}
#theme-palette .green {
  background-color: #1f8a13;
}
#theme-palette .blue {
  background-color: #52c4eb;
}
#theme .black {
  background-color: black;
  border: 1px solid white;
}
#theme .purple {
  background-color: #ffbb00;
}

/* ================================================ */
/* landing screen */
#container .glass{
  position: relative;
  backdrop-filter: blur(120px);
}

#container .intro {
  display: grid;
  grid-template-columns: 50% 50%;
  width: 100vw;
  padding-top: 3.5rem;
  backdrop-filter: blur(60px);
}

#container .intro .intro-info {
  display: flex;
  justify-content: right;
  color: var(--txt-black);
}

#container .intro .intro-info div {
  display: flex;
  flex-direction: column;
  align-items: baseline;
  margin: 15vh 0;
  /* padding-left: 20px; */
  /* border-left: 0.5px dotted var(--cta-col); */
  margin-left: 7rem;
  height: auto;
}

#container .intro .intro-info div h1 {
  margin-bottom: 0.8rem;
  font-size: 2.5rem;
  font-weight: bolder;
  font-family: Arial, Helvetica, sans-serif;
}
#container .intro .intro-info div p {
  font-size: 1.2rem;
  font-family: monospace;
  margin-bottom: 0.8rem;
}
#container .intro .intro-info div p span {
  color: var(--cta-col);
}
#container .intro .intro-info div .greetings {
  animation: shadow-txt 2s ease infinite;
  color: var(--txt-white);
  font-weight: bolder;
  font-size: 24px;
}
#container .intro .intro-info div .type-writer {
  width: 268px;
  overflow: hidden;
  white-space: nowrap;
  border-right: 2px solid var(--txt-black);
  animation: type-writter 4s steps(24) infinite;
}

#container .intro .intro-info div button {
  background-color: var(--cta-col);
  color: var(--txt-white);
  border: none;
  padding: 5px 8px;
  border-radius: 20PX;
  font-weight: bold;
  transition: 0.03s ease;
}
#container .intro .intro-info div button:hover {
  opacity: 80%;
  cursor: pointer;
  background-color: var(--purple);
}
#container .intro .intro-info div .small-socials{
  display: flex;
  width: 100%;
  margin-top: 15px;
  margin-bottom: 20px;
  text-decoration: none;
  color: none;
}
#container .intro .intro-info div .small-socials a{
  color: var(--purple);
  font-size: 1.8rem;
  margin: 0px 10px;
  padding: 5px 5px;
  transition: 0.3s ease;
}
#container .intro .intro-info div .small-socials a:hover{
  color: var(--cta-col);
}


#container .intro .intro-picture {
  display: flex;
  justify-content: end;
  align-items: end;
  padding-right: 1rem;
}
#container .intro .intro-picture img {
  width: 500px;
  margin-bottom: 50px;
}

/* ================================================ */
/* popups & messages */
#alert-popup{
  display: none;
  position: fixed;
  bottom: 6rem;
  left: 35%;
  z-index: 2;
  padding: 7px 10px;
  border-radius: 3px;
  background-color: var(--error-clr);
  border: 1px solid var(--error-brd);
  color: var(--txt-all-white);
}

/* ================================================ */
/* background graphics */
#container .planets {
  position: absolute;
  top: 50px;
  left: 50%;
  z-index: 1;
  width: 70px;
  height: 70px;
  background: linear-gradient(45deg, var(--purple), var(--txt-white));
  border-radius: 100px;
  animation: planet 10s ease infinite;
}

#container .planet{
  position: absolute;
  width: 20rem;
  height: 10rem;
  border-radius: 50%;
  z-index: -1;
  top: 10rem;
  left: 10rem;
  background: var(--box-shadow);
}

#container .depth{
  background: var(--cta-col);
  top: 20rem;
  left: 20rem;
}

#container .trcorner{
  background: var(--box-shadow);
  top: 5rem;
  left: 95%;
  height: 20rem;
  width: 10rem;
}

#container .vector {
  position: absolute;
  top: 35rem;
  left: 3rem;
  z-index: 0;
  scale: 1.5;
  height: 250px;
  background-image: var(--vector);
  background-size:99%;
  background-position: center;
  background-repeat: no-repeat;
}

#container hr {
  position: relative;
  z-index: -2;
  height: 3px;
  width: 65vw;
  background-color: var(--purple);
  border: none;
  margin-top: 20px;
  margin-left: 29vw;
}

/* ================================================ */
/* contacts */
#container .contacts {
  display: grid;
  grid-template-columns: auto auto auto auto auto;
  justify-content: right;
  align-items: center;
  height: auto;
  margin: 0 2rem;
  transform: translateY(-8vh);
}

#container .contacts a {
  color: var(--txt-black);
  text-decoration: none;
  margin-right: 40px;
  z-index: 1;
}

#container .contacts a div {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 120px;
  background-color: var(--txt-white);
  box-shadow: 3px 3px 10px var(--box-shadow);
  border-radius: 10px;
  transition: 0.06s ease-in-out;
}
#container .contacts a div:hover {
  transform: translateY(-10px);
}

#container .contacts a div i {
  font-size: 35px;
  color: var(--purple);
  margin-bottom: 20px;
}

/* ================================================ */
/* sections headings */
#container .section-heading {
  width: 100vw;
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 80px;
  color: var(--txt-black);
}
#container .section-heading h2 {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    color: var(--box-shadow);
}

/* ================================================ */
/* education section */
#education {
  display: flex;
  flex-wrap: wrap;
  width: 80%;
  justify-content: center;
  justify-self: center;
  column-gap: 50px;
  padding-top: 20px;
  padding-bottom: 40px;
  color: var(--txt-black);
}

#education .certification {
  width: 300px;
  margin-bottom: 20px;
}
#education .certification h3 {
  margin: 10px 0px;
}
#education .certification .image {
  width: 300px;
  height: 200px;
  margin: 10px 0;
  border-radius: 10px;
  background-color: var(--box-shadow);
}
#education .certification .image img{
  width: 100%;
  height: 100%;
}
#education .certification p {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    margin: 8px 0px;
    font-size: 0.9rem;
}
#education .certification .issuer{
  font-style: italic;
  text-decoration: underline;
}
#education .certification span{
  font-weight: bold;
  color: var(--purple);
}
#education .certification button {
  margin: 5px 0;
  padding: 5px 7px;
}
#education .certification button:hover{
  color: var(--purple);
  cursor: pointer;
}

/* ================================================ */
/* skills section */
#skills {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100vw;
  padding: 40px 0;
  margin-bottom: 40px;
  background-color: var(--cont-shade);
}
#skills .heading {
  margin-bottom: 30px;
}
#skills .skills-items {
  display: grid;
  grid-template-columns: auto auto auto auto;
  column-gap: 20px;
  row-gap: 20px;
}
#skills .skills-items div {
  width: 200px;
  height: 300px;
  padding: 20px 10px;
  box-shadow: 3px 3px 10px var(--box-shadow);
  animation: animate-appear linear;
  animation-timeline: view();
  animation-range: entry 0% cover 40%;
}
#skills .skills-items div img {
  width: 200px;
  margin: 20px 0;
  border-radius: 10px;
}
#skills .skills-items div i{
  margin-left: 30%;
  font-size: 50px;
  margin: 20px 0;
  color: var(--purple);
}

/* ================================================ */
/* technologies section */
#technologies{
width: 100vw;
display: flex;
flex-direction: column;
align-items: center;
padding-top: 4rem;
}

#technologies h2{
  color: var(--txt-black);
}

#technologies .technologies-items{
  display: flex;
  justify-content: start;
  align-items: center;
  flex-wrap: wrap;
  width: 80%;
  padding: 20px 0px;
}
#technologies .technologies-items .item{
  margin: 10px 10px;
  padding: 5px 5px;
  border-radius: 5px;
  box-shadow: 2px 5px 10px var(--box-shadow);
}
#technologies .technologies-items .hidden {
  opacity: 0;
  transform: translateY(50px); 
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
#technologies .technologies-items .show-hidden{
  opacity: 1;
  transform: translateY(0);
}

#technologies .technologies-items .item:hover{
  scale: 1.2;
  border: 2px solid var(--cta-col);
  animation: box-shadow 2s ease infinite;
}

#technologies .technologies-items .item img{
  width: 80px;
  min-height: 60px;
}


/* ================================================ */
/* project section */
#projects {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 80px 0px;
  padding-bottom: 0;
  color: var(--txt-black);
}


#projects .projects-container {
  display: grid;
  grid-template-columns: auto auto auto;
  justify-content: center;
  column-gap: 20px;
  row-gap: 20px;
  width: 100vw;
  padding: 20px 0;
}
#projects .project-item {
  width: 300px;
  padding: 20px 20px;
  background-color: var(--dark-cont-shade);
  border: 0.5px solid var(--box-shadow);
  border-radius: 10px;
  color: var(--txt-black);
}
#projects .project-item img {
  width: 100px;
  margin-bottom: 10px;
}
#projects .project-item h3 {
  margin-bottom: 10px;
}


.projects {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  margin-bottom: 7rem;
}

.projects h2 {
  text-align: center;
  margin-bottom: 2rem;
  color: var(--txt-black);
}

.projects .filter-buttons {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.projects .filter-buttons .filter-btn {
  background-color: var(--purple);
  color: var(--txt-all-white);
  border: none;
  border-radius: 30px;
  padding: 0.5rem 1rem;
  margin: 0 0.5rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.projects .filter-buttons .filter-btn:hover,
.projects .filter-buttons .filter-btn.active {
  background-color: var(--plum);
  color: var(--txt-black);
}

.projects .projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.projects .projects-grid .project-card {
  background-color: var(--txt-white);
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease;
}

.projects .projects-grid  .project-card:hover {
  transform: translateY(-5px);
}

.projects .projects-grid .project-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin-bottom: 10px;
}

.projects .projects-grid  .project-card h3 {
  padding: 1rem;
  margin: 0;
  color: var(--txt-black);
}

.projects .projects-grid  .project-card p {
  padding: 0 1rem 1rem;
  margin: 0;
  color: #666;
}

/* --- achievements wall --- */
/* achievements */
#achievement-wall {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  margin: 40px 0;
  color: var(--txt-black);
}

#achievement-wall .card {
  display: flex;
  padding: 20px 40px;
  border-radius: 5px;
  box-shadow: 3px 3px 8px var(--purple);
}

#achievement-wall .card .border,
#achievement-wall .card div {
  padding: 0 20px;
  font-size: 1rem;
}
#achievement-wall .card .border span,
#achievement-wall .card div span {
  font-size: 20px;
  font-weight: bold;
}
#achievement-wall .card .border {
  border-right: 2px solid var(--purple);
}







/* ================================================ */
/* learning roadmap */
#roadmap{
  width: 100vw;
  height: auto;
  position: relative;
  margin: 100px 0px;
}

#roadmap .heading{
  text-align: center;
  margin-bottom: 15px;
  color: var(--txt-black);
}

#roadmap .roadmap-timeline{
display: grid;
place-items: center;
margin-top: 60px;
}
#roadmap .roadmap-timeline::after{
  position: absolute;
  content: "";
  width: 2px;
  height: 90%;
  background-image: linear-gradient(to bottom, rgb(106, 6, 136), rgb(220, 0, 240));
  margin: 30px 0;
}

#roadmap .roadmap-timeline ul{
  width: 80%;
  list-style: none;
}

#roadmap .roadmap-timeline ul li{
  position: relative;
  max-width: 45%;
  padding: 15px 20px;
  box-shadow: 0px 4px 8px var(--box-shadow);
  background-color: var(--dark-cont-shade);
  border-radius: 10px;
  margin-bottom: 30px;
  z-index: 2;
}

#roadmap .roadmap-timeline ul li:nth-child(odd){
  float: left;
  clear: right;
  text-align: right;
  transform: translateX(-15px);
}

#roadmap .roadmap-timeline ul li:nth-child(even){
  float: right;
  clear: left;
  transform: translateX(15px);
}

#roadmap .roadmap-timeline ul li:nth-child(4){
  margin-bottom: 0px;
}

#roadmap .roadmap-timeline ul li h3{
  color: var(--purple);
  font-size: 18px;
}

#roadmap .roadmap-timeline ul li .stacks-used{
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}
#roadmap .roadmap-timeline ul li .stacks-used img{
  width: 30px;
  height: 30px;
  padding: 5px 5px;
  margin: 0px 3px;
  border-radius: 3px;
  transform: 1s ease;
}

#roadmap .roadmap-timeline ul li p{
  font-size: 1rem;
  color: var(--txt-black);
  margin: 5px 0;
}

#roadmap .roadmap-timeline ul li a{
  text-decoration: none;
  font-size: 1.1rem;
}

#roadmap .roadmap-timeline ul li .date{
  position: absolute;
  top: -40px;
  left: 0;
  padding: 3px 10px;
  color: var(--txt-all-white);
  border-radius: 20px;
  background-image: linear-gradient(to right, rgb(106, 6, 136), rgb(220, 0, 240));
}

#roadmap .roadmap-timeline ul li .circle{
  position: absolute;
  top: 0;
  left: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: rgba(220, 0, 240, 0.507);
}

#roadmap .roadmap-timeline ul li .circle::after{
  position: absolute;
  top: 0;
  left: 0;
  transform: translateY(50%) translateX(50%);
  content: '';
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background-color: rgb(106, 6, 136);
}

#roadmap .roadmap-timeline ul li:nth-child(odd) .circle{
  position: absolute;
  /* right: 0; */
  left: calc(100% + 15px);
}
#roadmap .roadmap-timeline ul li:nth-child(even) .circle{
  position: absolute;
  left: -45px;
}
#roadmap .roadmap-timeline ul li:nth-child(odd) .date{
  right: 0;
  place-self: end;
}

/* ================================================ */
/* footer section */
#footer {
  width: 100vw;
  background: linear-gradient(90deg, var(--box-shadow), rgb(51, 46, 46));
  border-top-right-radius: 30px;
  border-top-left-radius: 30px;
  padding: 10px 10px;
  padding-bottom: 0px;
  margin-top: 80px;
  color: white; /* check to solve */
}

#footer .copyright {
  background-color: #000000;
  border-radius: 30px 50px 0px 0px;
  padding: 10px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}
#footer .copyright .links{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-around;
  width: 15rem;
}
#footer .copyright .links a{
  font-size: 1.7rem;
  color: var(--purple);
  margin: 1rem 0rem;
}

#footer .copyright p {
  color: var(--txt-all-white);
  font-style: italic;
  font-family: Arial, Helvetica, sans-serif;
  padding: 0 0 10px 0;
}

/* ================================================ */
/*  media queries */
/* ================================================ */
/*  Tablet */
@media (max-width: 1010px) {
  #education{
    grid-template-columns: auto auto;
  }

  #projects .projects-container{
    grid-template-columns: auto auto;
  }

  #container.vector{
    z-index: -1;
    left: 0rem;
    transform: translateY(-50vh);
    background-color: red;
  }
}


/* ================================================ */
/*  mobile phone */

@media (max-width: 700px) {
  /* navbar */
  #container .header .logo{
    margin-left: 5px;
  }
  #container .header .logo a h1#name-abr{
    width: 35px;
    font-size: 30px;
    padding: 5px 5px;
    margin-left: 0px;
  }
  #container .header .logo h1{
    font-size: 20px;
  }

  #container .header .nav-links{
    display: none;

  }

  #container .header .cv {
    /* display: none; */
    transform: translateX(30vw);
  }
  #container .header .theme{
    margin-left: 10px;
  }

  /* landing screen */
  #container .intro {
    grid-template-columns: auto;
    padding-top: 1.5rem;
  }

  #container .intro .intro-info{
    width: 100vw;
    justify-content: left;
  }
  #container .intro .intro-info div{
    margin: 10vh 0;
    margin-bottom: 0;
    margin-left: 20px;
    height: 30vh;
  }

  #container .intro .intro-info div p{
    font-size: 16px;
    white-space: wrap;
    width: 100vw;
  } 

  #container .intro .intro-info div .greetings{
    font-size: 18px;
  }

  #container .intro .intro-picture img{
    width: 420px;
    margin-bottom: 40px;
  }

  /* background graphics */
  #container .planets {
    transform: none;
    top: 0px;
    left: 50%;
  }

  #container .vector {
    display: none;
  }

  #container hr{
    display: none;
  }

  /* contacts */
  #container .contacts {
    display: grid;
    grid-template-columns: auto auto auto;
    row-gap: 20px;
    column-gap: 20px;
    justify-content: center;
    padding: 0px 20px;
    transform: none;
    scale: 0.8;
  }

  #container .contacts a{
    margin: 0;
  }

  #container .contacts a div {
    width: 90px;
    height: 100px;
    box-shadow: 0px 0px 10px var(--box-shadow);
  }

  #container .contacts a div p{
    font-size: 14px;
  }

  /* education section */
  #education {
    grid-template-columns: auto;
    row-gap: 20px;
  }

  #education .certification h3{
    font-size: 18px;
  }

  #education .certification p{
    font-size: 15px;
  }


  /* technologies */
  #technologies .technologies-items{
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    width: auto;
  }

  /* project section */
  #projects .projects-container {
    grid-template-columns: auto;
  }
  #projects .heading h2{
    font-size: 18px;
  }

  #projects .projects-container .project-item h3{
    font-size: 16px;
  }


    .filter-buttons {
      flex-wrap: wrap;
    }
  
    .filter-btn {
      margin-bottom: 0.5rem;
    }
  

  /* achievement wall */
  #achievement-wall{
    width: 80vw;
    margin-inline: auto;
  }

  #achievement-wall .card{
    flex-wrap: wrap;
    flex-basis: auto;
  }

  #achievement-wall .card .border,
  #achievement-wall .card div {
    font-size: 14px;
    margin-bottom: 10px;
    padding-bottom: 10px;
  } 
  #achievement-wall .card .border span,
  #achievement-wall .card div span{
  font-size: 18px;
  }
  #achievement-wall .card .border{
    border-right: none;
    border-bottom: 1px solid var(--purple);
  }


  /* roadmap section */
  #roadmap .roadmap-timeline::after{
    left: 30px;
    height: 100%;
  }

  #roadmap .roadmap-timeline ul li{
    margin-bottom: 40px;
    max-width: 70%;
    margin-left: 25px;
  }
  #roadmap .roadmap-timeline ul li:nth-child(odd){
    float:none;
    clear:none;
    text-align: left;
    transform: none;
  }
  #roadmap .roadmap-timeline ul li:nth-child(even){
    float:none;
    clear:none;
    transform: none;
  }

  #roadmap .roadmap-timeline ul li .date{
    top: -15px;
    left: -15px;
  }

  #roadmap .roadmap-timeline ul li:nth-child(odd) .circle{
    left: -50px;
    top: -30px;
  }
  #roadmap .roadmap-timeline ul li:nth-child(even) .circle{
    left: -50px;
    top: -30px;
  }

  #roadmap .roadmap-timeline ul li:nth-child(odd) .date{
    left: 0;
    place-self: start;
  }

  /* footer */
  #footer .page-links .ellypad-logo a img,
  #footer .contacts-links .peter-logo img{
    width: 50px;
  }

  #footer .page-links .ellypad-logo a p,
  #footer .contacts-links .peter-logo p{
    font-size: 14px;
  }

  #footer .contacts-links .links {
    font-size: 20px;
  }

  #footer .page-links .links form {
    grid-template-columns: auto;
  }

  #footer .copyright{
    font-size: 14px;
  }

  /* ================ end ==================== */
}