/* apply Mobile First Approach */

:root {
  /* Light Theme (default) */
  --box-shadow: 0 0px 20px rgb(216, 215, 215);
  --header-box-shadow: 0 5px 20px rgb(216, 215, 215);
  --footer-box-shadow: 0 -5px 20px rgb(216, 215, 215);
  --glossy-background: rgba(255, 255, 255, 0.5);
  --primary-color: rgb(39, 39, 180);
  --secondary-color: rgb(0, 0, 0);
  --third-color: rgb(228, 226, 226);
  --forth-color: rgb(255, 255, 255);
  --success-color: rgb(64, 212, 64);
  --danger-color: rgb(226, 51, 51);
  --overlay-background: rgba(0, 0, 0, 0.8);
  --text-color: #333;
  --background-color: #fff;
  --card-bg: #f9f9f9;
  --icon-accent: brightness(0) saturate(100%) invert(14%) sepia(80%)
    saturate(3696%) hue-rotate(237deg) brightness(93%) contrast(98%);
  --icon-size: 24px;
}

:root:has(#theme-toggle:checked) {
  /* Dark Theme */
  --box-shadow: 0 0px 20px rgba(0, 0, 0, 0.5);
  --header-box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
  --footer-box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.5);
  --glossy-background: rgba(0, 0, 0, 0.36);
  --primary-color: rgb(100, 149, 255); /* Lighter blue for better visibility */
  --secondary-color: rgb(255, 255, 255);
  --third-color: rgb(50, 50, 50);
  --forth-color: rgb(30, 30, 30);
  --success-color: rgb(64, 212, 64);
  --danger-color: rgb(226, 51, 51);
  --overlay-background: rgba(0, 0, 0, 0.9);
  --text-color: #f0f0f0;
  --background-color: #121212;
  --card-bg: #1e1e1e;
  --icon-accent: brightness(0) saturate(100%) invert(49%) sepia(80%)
    saturate(554%) hue-rotate(190deg) brightness(102%) contrast(106%);
  --icon-size: 24px;
}

* {
  font-family: inherit;
  font-weight: inherit;
  font-style: inherit;
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
  transition: 0.5s;
}

html {
  font-size: 1rem;
}

body {
  font-family: "Comic Relief", system-ui;
  font-weight: 400;
  font-style: normal;
  text-align: center;

  background-color: var(--background-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
  animation: launch 1s ease 0s 1 normal forwards;
}

@keyframes launch {
  0% {
    opacity: 1;
  }

  50% {
    opacity: 0.2;
  }

  100% {
    opacity: 1;
  }
}

.right {
  display: flex;
  gap: 10px;
}

.icon {
  filter: var(--icon-accent);
}

.loader{
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid var(--primary-color);
  padding: 20px 50px;
  display: none;
}

.github-followers-count{
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid var(--third-color);
  margin: 20px auto;
  width: fit-content;
  height: 50px;
  padding: 10px;
  border-radius: 15px;
}

.github-followers{
  margin-right: 10px;
}

.github-followers-count img{
  width: var(--icon-size);
  height: var(--icon-size);
  margin-right: 10px;
}

/* Theme Toggle Switch */
.theme-switch {
  position: relative;
  display: inline-block;
  width: 34px;
  height: 34px;
  border: 1px solid var(--third-color);
  border-radius: 50%;
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider .icon {
  position: absolute;
  width: var(--icon-size);
  height: var(--icon-size);
  top: 50%;
  transform: translateY(-50%);
  transition: opacity 0.3s;
  z-index: 1;
  left: 0;
  padding-left: 8px;
}

.slider .sun-icon {
  fill: var(--text-color);
}

.slider .moon-icon {
  fill: var(--text-color);
}

/* Hide/show logic */
.slider .moon-icon,
:root:has(#theme-toggle:checked) .slider .sun-icon {
  opacity: 1;
}

.slider .sun-icon,
:root:has(#theme-toggle:checked) .slider .moon-icon {
  opacity: 0;
}

input:checked + .slider {
  background-color: var(--primary-color);
}

input:checked + .slider:before {
  transform: translateX(26px);
}

.card {
  background-color: var(--card-bg);
  box-shadow: var(--box-shadow);
}

a {
  color: var(--primary-color);
}

.nav-toggle {
  position: relative;
}

.nav-trigger {
  border: none;
  background: transparent;
  outline: none;
  padding: 5px 5px 0 5px;
  border-radius: 5px;
  cursor: pointer;
}

.nav-trigger > a.main-nav-toggle {
  display: block;
  width: 28px;
  height: 16px;
  left: -5px;
  position: absolute;
}

.nav-trigger a.main-nav-toggle:after,
.nav-trigger a.main-nav-toggle:before {
  content: "";
  position: absolute;
  top: 0;
  height: 0;
  border-bottom: 4px solid var(--primary-color);
  border-radius: 10px;
  width: 100%;
  left: 0;
  right: 0;
  transition: all ease-out 0.3s;
}
.nav-trigger a.main-nav-toggle:after {
  top: 100%;
}

.nav-trigger a.main-nav-toggle i {
  display: block;
  text-indent: 100%;
  overflow: hidden;
  white-space: nowrap;
  height: 4px;
  background-color: var(--primary-color);
  border-radius: 10px;
  width: 100%;
  position: absolute;
  top: 50%;
  transition: all ease-out 0.1s;
}
.nav-trigger a.main-nav-toggle.active-menu:after {
  transform: rotate(-45deg);
  transform-origin: center;
  top: 50%;
}
.nav-trigger a.main-nav-toggle.active-menu:before {
  transform: rotate(45deg);
  transform-origin: center;
  top: 50%;
}
.nav-trigger a.main-nav-toggle.active-menu i {
  opacity: 0;
}

span.overlay {
  display: none;
  position: fixed;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--overlay-background);
  z-index: 10;
}

/* Active state when toggled */
.show-overlay {
  display: block !important;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  box-shadow: var(--header-box-shadow);
  position: fixed;
  width: 100%;
  background-color: var(--forth-color);
  top: 0;
  z-index: 1000;
  background: var(--glossy-background);
  border-radius: 16px;
  box-shadow: var(--box-shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  animation: header 1s linear 0s 1 normal both;
}

@keyframes header {
  0% {
    animation-timing-function: ease-in;
    opacity: 0;
    transform: translateY(-250px);
  }

  38% {
    animation-timing-function: ease-out;
    opacity: 1;
    transform: translateY(0);
  }

  55% {
    animation-timing-function: ease-in;
    transform: translateY(-65px);
  }

  72% {
    animation-timing-function: ease-out;
    transform: translateY(0);
  }

  81% {
    animation-timing-function: ease-in;
    transform: translateY(-28px);
  }

  90% {
    animation-timing-function: ease-out;
    transform: translateY(0);
  }

  95% {
    animation-timing-function: ease-in;
    transform: translateY(-8px);
  }

  100% {
    animation-timing-function: ease-out;
    transform: translateY(0);
  }
}

header .logo img {
  width: auto;
  height: 3rem;
  border-radius: 50%;
}

header > .nav > .nav-list {
  position: absolute;
  top: 100px;
  left: 0;
  width: 100%;
  background-color: var(--forth-color);
  box-shadow: var(--box-shadow);
  visibility: hidden;
  opacity: 0;
  transition: visibility 0s, opacity 0.5s linear;
}

/* Active state when toggled */
.nav-list.show-nav {
  visibility: visible !important;
  opacity: 1 !important;
}

header > .nav > .nav-list li {
  border-bottom: 1px solid var(--third-color);
}

header > .nav > .nav-list li:last-child {
  border-bottom: none;
}

header > nav > ul > li {
  list-style: none;
  /* text-align: start; */
  padding: 10px;
}

header > nav > ul > li > a {
  padding: 10px;
  text-decoration: none;
  color: var(--secondary-color);
  display: block;
}
header > nav > li > a:hover {
  border-bottom: 2px solid var(--primary-color);
}
.hero {
  margin: 100px 20px 20px 20px;
}

.hero > img {
  display: block;
  margin: auto;
  width: auto;
  height: 150px;
  border: 1px solid var(--third-color);
  border-radius: 50%;
  box-shadow: var(--footer-box-shadow);
  animation: logo 1s ease 0s infinite normal both;
}

@keyframes logo {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.1);
  }

  100% {
    transform: scale(1);
  }
}

h2 {
  text-align: center;
  margin: 10px;
  animation: bio 1s linear 0s 1 normal both;
}

section.bio {
  margin: 20px 10%;
  text-align: center;
  line-height: 2;
  animation: bio 1s linear 0s 1 normal both;
}

@keyframes bio {
  0% {
    transform: scale3d(1, 1, 1);
  }

  30% {
    transform: scale3d(1.25, 0.75, 1);
  }

  40% {
    transform: scale3d(0.75, 1.25, 1);
  }

  50% {
    transform: scale3d(1.15, 0.85, 1);
  }

  65% {
    transform: scale3d(0.95, 1.05, 1);
  }

  75% {
    transform: scale3d(1.05, 0.95, 1);
  }

  100% {
    transform: scale3d(1, 1, 1);
  }
}

.material-symbols-outlined {
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
}

.download {
  display: inline-flex;
  align-items: center;
  background-color: var(--primary-color);
  color: var(--forth-color);
  padding: 10px 20px;
  border-radius: 20px;
  box-shadow: var(--box-shadow);
  text-decoration: none;
  animation: bio 1s ease 0s infinite normal both;
}

.download:hover {
  background-color: var(--forth-color);
  color: var(--primary-color);
  outline: 1px solid var(--primary-color);
}

hr {
  margin: 20px;
}

section.skills {
  text-align: center;
}

section.skills ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

section.skills > ul > li {
  border: 1px solid var(--third-color);
  border-radius: 15px;
  padding: 10px;
  margin: 10px;
  display: inline-block;
}

section.portfolio {
  text-align: center;
  margin: 20px;
}

section.portfolio h2 {
  margin: 20px;
}

section.portfolio ul {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

section.portfolio ul li {
  position: relative;
  list-style: none;
  padding: 10px;
  margin: 10px;
}

section.portfolio ul li .github-link img {
  height: var(--icon-size);
  width: auto;
  filter: var(--icon-accent);
}
section.portfolio ul li .github-link {
  position: absolute;
  left: 30px;
  bottom: 60px;
  padding: 12px 15px;
  background-color: var(--forth-color);
  border: 1px solid var(--third-color);
  border-radius: 50%;
}
section.portfolio ul li:hover .github-link {
  opacity: 1;
  visibility: visible;
  left: 30px;
  border: 1px solid var(--primary-color);
  box-shadow: var(--box-shadow);
}
section.portfolio ul li:hover .github-link img {
  display: block;
}

section.portfolio img {
  display: inline-block;
  width: 100%;
  height: 200px;
  box-shadow: var(--box-shadow);
  border-radius: 15px;
  object-fit: cover;
}
section.portfolio ul li:hover {
  transform: scale(1.1);
}


figcaption {
  text-decoration: none;
  color: var(--secondary-color);
}

.certificates,
.testimonials {
  padding: 20px;
}

.certificates li {
  line-height: 25px;
  display: block;
}

.testimonials {
  margin: 20px;
  padding: 40px 0;
}

.testimonials h2 {
  text-align: center;
  margin-bottom: 30px;
  color: var(--heading-color);
}

.testimonials .items {
  display: flex;
  overflow-x: auto;
  gap: 20px;
  padding: 20px 10px;
  scrollbar-width: thin; /* For Firefox */
  scrollbar-color: var(--primary-color) #f1f1f1;
  -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
}

/* For Chrome/Safari scrollbar styling */
.testimonials .items::-webkit-scrollbar {
  height: 8px;
}

.testimonials .items::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}

.testimonials .items::-webkit-scrollbar-thumb {
  background-color: var(--primary-color);
  border-radius: 10px;
}

.testimonials li {
  list-style: none;
  min-width: fit-content;
  padding: 25px;
  border-radius: 15px;
  box-shadow: var(--box-shadow);
  border: 1px solid var(--primary-color);
}

.testimonials blockquote {
  margin: 0;
  font-style: italic;
  line-height: 1.6;
}

.contact {
  padding: 20px;
  max-width: 600px;
  width: 90%;
  display: inline-block;
}

.contact .form {
  position: relative;
}

.contact .contact-details ul {
  display: flex;
  justify-content: center;
  margin: 5px;
}

.contact .contact-details ul li:hover {
  border: 1px solid var(--primary-color);
  transform: scale(1.2);
}
.contact .contact-details ul li {
  list-style: none;
  margin: 5px;
  padding: 10px;
  border-radius: 15px;
}
.contact .contact-details ul li a {
  text-decoration: none;
  color: var(--text-color);
}

.contact .contact-details img {
  width: var(--icon-size);
  height: var(--icon-size);
  filter: var(--icon-accent);
  margin: 0 5px;
}

.field {
  position: relative;
  display: block;
}

.field img {
  width: 20px;
  height: 20px;
  position: absolute;
  left: -25px;
  top: 15px;
}

.input {
  padding: 10px;
  outline: none;
  border-radius: 20px;
  box-shadow: var(--box-shadow);
  border: 0;
  margin: 5px;
  width: 100%;
}

textarea {
  resize: none;
  background-color: var(--background-color);
  color: var(--text-color);
}

input {
  background-color: var(--background-color);
  color: var(--text-color);
}

.submit {
  padding: 10px 20px;
  margin: 10px;
  cursor: pointer;
  border: none;
  outline: none;
  background-color: var(--primary-color);
  color: var(--forth-color);
  border-radius: 20px;
}

.submit:hover {
  background-color: var(--forth-color);
  color: var(--primary-color);
  outline: 1px solid var(--primary-color);
}

.submit:disabled {
  cursor: not-allowed;
  background-color: var(--third-color);
  color: var(--text-color);
}

[class$="-error"] {
  display: none;
  padding: 5px 10px 5px 10px;
  text-align: start;
  margin: 0 0 10px 10px;
  color: var(--danger-color);
  font-size: small;
}

footer {
  padding: 20px;
  box-shadow: var(--footer-box-shadow);
  text-align: center;
}

#back-to-top {
  display: none;
  position: fixed;
  bottom: 0;
  right: 0;
  background-color: var(--primary-color);
  color: var(--forth-color);
  padding: 15px 15px 10px 15px;
  margin: 30px;
  border-radius: 50%;
  border: none;
  box-shadow: var(--box-shadow);
  z-index: 1000;
}

#back-to-top.show {
  display: block;
  animation: go-to-top 1s ease 0s 1 normal both;
}

#back-to-top:hover {
  cursor: pointer;
  color: var(--primary-color);
  background-color: var(--forth-color);
  outline: 1px solid var(--primary-color);
}

@keyframes go-to-top {
  0% {
    opacity: 0;
    transform: translateY(250px) rotate(200deg);
  }

  100% {
    opacity: 1;
    transform: translateY(0) rotate(0deg);
  }
}

@media screen and (min-width: 768px) {
  html {
    font-size: 1.125rem;
  }
  header > .nav > .nav-list {
    display: flex;
    position: relative;
    top: 0;
    background-color: transparent;
    box-shadow: none;
    visibility: visible;
    opacity: 1;
  }

  header > .nav > .nav-list li {
    border-bottom: none;
  }

  .nav-trigger {
    display: none;
  }

  section.portfolio ul {
    grid-template-columns: 1fr 1fr;
  }

  section.portfolio ul li .github-link img {
    display: block;
  }

  .testimonials li {
    min-width: 300px;
  }
}

@media screen and (min-width: 992px) {
  html {
    font-size: 1.25rem;
  }
  .hero {
    display: flex;
    justify-content: space-between;
    gap: 50px;
    text-align: start;
  }

  .call-to-action {
    margin: auto 0;
  }

  .hero img {
    height: 20rem;
    border-radius: 15px;
    box-shadow: none;
    border: none;
  }

  .hero .call-to-action .bio,
  .hero .call-to-action a,
  .hero .call-to-action h2 {
    margin: 20px;
  }

  .hero .call-to-action h2,
  .hero .call-to-action p {
    text-align: start;
  }

  section.portfolio ul li .github-link {
    opacity: 0;
    visibility: hidden;
    left: -40px;
  }

  section.portfolio ul li .github-link img {
    display: none;
  }
}

@media screen and (min-width: 1200px) {
  body {
    max-width: 1024px;
    margin: 0 auto;
  }
  header {
    width: 1000px;
    margin: 40px auto;
    border-radius: 24px;
  }
}