:root {
  --color-primary: #0077b6;
  --color-primary-dark: #03045e;
  --color-primary-light: #00b4d8;
  --color-accent: #90e0ef;
  --color-accent-light: #caf0f8;
  --color-card-accent: #e2f2f5;
  --color-card: #f3fdffd2;

  --color-text: #1a1a1a;
  --color-text-muted: #6b7280;
  --color-bg: #f3fdff80;
  --color-bg-alt: #f9fafb;
  --color-border: #e5e7eb;

  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Poppins", Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  margin: 0;
  padding-top: 60px;
}
p {
  color: var(--color-text-muted);
}

.site-title {
  display: inline-block;
}

.title-span {
  color: var(--color-primary);
}

.main-nav {
  overflow: hidden;
  background-color: transparent;
  position: fixed;
  top: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  backdrop-filter: blur(5px);
  z-index: 9999;
}

.nav-list {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: transparent;
  color: var(--color-text);
  display: flex;
  gap: 20px;
  backdrop-filter: blur(5px);
}

.nav-list li a {
  color: var(--color-text);
  text-decoration: none;
  transition: 0.3s ease;
}

.nav-list li a:hover,
.nav-list li a.active {
  color: var(--color-primary);
}

.nav-list li a:focus {
  color: var(--color-primary);
  text-decoration: underline;
}

.section-name-container h2 {
  margin: 50px 50px 0px 50px;
  justify-content: flex-start;
}

.about-content {
  display: flex;
  flex-direction: row;
  gap: 40px;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
  padding: 0px 140px;
  margin: 50px 0px 50px 0px;
  position: relative;
}

#intro-para {
  font-size: 36px;
  color: var(--color-text);
  font-weight: 500;
}

.role-span {
  font-family: "Poppins", Consolas, monospace;
  font-size: 6vw;
  color: var(--color-primary);
  font-size: 40px;
  font-weight: 540;
  position: relative;
  &::after {
    content: "|";
    position: absolute;
    right: 0;
    width: 100%;
    color: var(--color-text);
    background: var(--color-bg);
    animation:
      typing 4s steps(500) forwards,
      caret 0.4s infinite;
  }
}

@keyframes typing {
  to {
    width: 0;
  }
}
@keyframes caret {
  50% {
    color: transparent;
  }
}

.about-description {
  font-size: 22px;
  color: var(--color-text-muted);
  text-align: left;
}

.about-name {
  color: var(--color-text);
  font-size: 55px;
  font-weight: 700;
}

.about-text {
  flex: 1;
  text-align: justify;
}

.about-image-section {
  flex: 1;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 15px;
}

.img-wrap {
  width: 360px;
  height: 360px;
  border-radius: 50%;
  position: relative; /* anchor ::before/::after here */
  overflow: visible; /* let the rings extend */
  isolation: isolate;
}

@keyframes cycle-colors {
  0% {
    border-color: var(--color-primary-light);
  }
  25% {
    border-color: var(--color-primary-dark);
  }
  50% {
    border-color: var(--color-accent);
  }
  75% {
    border-color: var(--color-primary);
  }
  100% {
    border-color: var(--color-accent-light);
  }
}

@keyframes pulse {
  to {
    opacity: 0;
    transform: scale(0.8);
  }
}

.img-wrap::before,
.img-wrap::after {
  content: "";
  position: absolute;
  top: -20%;
  left: -20%;
  width: 140%;
  height: 140%;
  border: #fff solid 8px;
  border-radius: 50%;
  box-sizing: border-box;
  opacity: 0.6;
  transform: scale(0.714);
  animation: pulse 1s linear infinite;
  z-index: 1;
  animation:
    pulse 1s linear infinite,
    cycle-colors 3s linear infinite;
}

.img-wrap::after {
  animation-delay: 1s;
}

.img-wrap:hover::before,
.img-wrap:hover::after {
  animation:
    pulse 1s linear infinite,
    cycle-colors 3s linear infinite;
}

.img-wrap:hover::after {
  animation-delay: 0.3s;
}

.img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
  position: relative;
  z-index: 2;
}

.icon-btns {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
}

.icon-btns img {
  justify-content: center;
  vertical-align: middle;
  align-items: center;
  width: 4rem;
  height: 4rem;
  background-color: transparent;
  border: 2px solid var(--color-accent);
  font-size: 2rem;
  border-radius: 50%;
  /* margin: 3rem 1.5rem 3rem; */
  transition: 0.3s ease;
  padding: 7px;
}

.icon-btns button {
  color: var(--color-primary);
  width: 150px;
  height: 60px;
  border: 1.5px solid var(--color-primary-light);
  border-radius: 45px;
  transition: all 0.3s;
  cursor: pointer;
  background: var(--color-card);
  font-size: 1rem;
  font-weight: normal;
}

.icon-btns button:hover {
  background: var(--color-primary-light);
  color: var(--color-bg-alt);
  font-size: 17px;
  transition: 0.3s ease;
  cursor: pointer;
}

.icon-btns img:hover {
  padding: 1.6%;
  transition: 0.3s ease;
  cursor: pointer;
}

.section {
  background-color: var(--color-card);
  margin: 60px 50px;
  border-radius: 20px;
  padding: 15px 15px;
  box-shadow: var(--color-accent-light) 0px 2px 8px 0px;
}

.section:hover {
  box-shadow: var(--color-card-accent) 0px 34px 35px;
  transition: 0.3s ease;
}

/* ====== TODO Skills TODO ====== */

.skill-category,
.skill-category-title {
  display: flex;
  justify-content: center;
  flex-direction: row;
  align-items: center;
  gap: 50px;
  align-items: center;
}

.icon-image {
  margin-top: 20px;
  padding: 4%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 60px; /* Smaller width */
  height: 60px;
  box-shadow: 0px 3px 8px rgb(from var(--color-accent) r g b / 0.5);
  border-radius: 50%;
  transition: all 0.3s ease;
}

.icon-image:hover {
  transform: translateY(-8px);
  box-shadow: 0px 12px 20px rgb(from var(--color-accent) r g b / 0.5);
}

.icon-image img {
  width: 45px;
  height: 45px;
  object-fit: contain;
}

.icon-image p {
  color: var(--color-text);
  margin: 0;
  text-align: center;
  font-weight: 500;
}

.skills-container {
  margin-top: 20px 0px 20px 0px;
  padding: 1%;
}
h2 {
  color: var(--color-primary);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-bottom: 10px;
  font-weight: 500;
}

h2 {
  color: var(--color-primary);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding-bottom: 10px;
  gap: 15px; /* Space between text and line */
}

/* ========== TODO PROJECTS TODO ========== */

/* ========== CERTIFICATIONS ========== */

.cert-container img {
  width: 550px;
  height: 350px;
  object-fit: fill;
  border-radius: 20px;
}
.cert-grid {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.cert {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 40px;
}

.cert:nth-child(odd) .cert-container {
  grid-column: 1;
  grid-row: 1;
  box-shadow: var(--color-accent-light) 2.4px 2.4px 3.2px;
  border-radius: 20px;
}

.cert:nth-child(odd) .cert-container:hover {

  box-shadow: var(--color-accent-light) 4.4px 4.4px 3.2px;
  border-radius: 20px;
  transform: translateX(-3px);
  transition: 0.3s ease;
}

.cert:nth-child(odd) .description-container {
  grid-column: 2;
  grid-row: 1;
}

.cert:nth-child(even) .cert-container {
  grid-column: 2;
  grid-row: 1;
  box-shadow: var(--color-accent-light) -2.4px 2.4px 3.2px;
  border-radius: 20px;
}

.cert:nth-child(even)  .cert-container:hover{
  box-shadow: var(--color-accent-light) -4.4px 4.4px 3.2px;
  border-radius: 20px;
  transform: translateX(3px);
  transition: 0.3s ease;
}

.cert:nth-child(even) .description-container {
  grid-column: 1;
  grid-row: 1;
  text-align: right;
}

.description-container p {
  color: var(--color-text-muted);
}
/* ========== Education ========== */
.timeline-wrapper {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  margin: 150px 0 100px;
  padding: 0px 140px;
}

.education-item {
  display: flex;
  flex-direction: column;
  padding: 20px;
  gap: 0.5;
  border-left: 1px solid var(--color-primary);
  position: relative;
  padding-left: 40px;
}

.education-item::before {
  position: absolute;
  content: "";
  width: 20px;
  height: 20px;
  background-color: var(--color-primary-light);
  border-radius: 50%;
  left: -10px;
  top: 40px;
}

/* ========== CONTACT ========== */

.contact,
a {
  padding: 5px;
  margin: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--color-primary-light);
}

.contact-header h3 {
  color: var(--color-text-muted);
  font-weight: 500;
  margin: 0;
  margin-bottom: 10px;
  font-size: 1rem;
  line-height: 0.5;
}

.contact-details {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;

}

.contact-container {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: start;
  gap: 60px;
  margin: 50px 0 100px;
  padding: 0px 140px;
}

.contact-container a {
  text-align: left;
}

.contact a:hover {
  text-decoration-line: underline;
  transform: scale(1.05);
  transition: 0.3s ease;
}

/* ========== FOOTER ========== */

.site-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px;
  margin: 10px;
}

/* responsiveness */

/* Tablet */
@media screen and (max-width: 768px) {
  body {
    padding-top: 80px;
  }

  .main-nav {
    flex-direction: column;
    padding: 15px 20px;
    gap: 5px;
  }

  .nav-list {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }

  .nav-list li {
    font-size: 1px;
  }

  .about-content {
    flex-direction: column-reverse;
    padding: 0 20px;
    margin: 80px 0 60px;
    text-align: center;
  }

  .about-text {
    text-align: center;
  }

  #intro-para {
    font-size: 28px;
  }

  .about-name {
    font-size: 40px;
  }

  .role-span {
    font-size: 28px;
  }

  .about-description {
    font-size: 18px;
  }

  .img-wrap {
    width: 280px;
    height: 280px;
  }

  .icon-btns {
    justify-content: center;
    flex-wrap: wrap;
  }

  .section {
    margin: 30px 20px;
    padding: 15px;
  }

  .section-title {
    margin: 50px 0px 20px 0px; /* Top: 50, Right: 0, Bottom: 20, Left: 0 */
  }

  /* Skills */
  .skill-category {
    flex-wrap: wrap;
    gap: 25px;
  }

  /* Certifications */
  .cert {
    grid-template-columns: 1fr;
    padding: 20px;
    gap: 1.5rem;
  }

  .cert:nth-child(odd) .cert-container,
  .cert:nth-child(even) .cert-container {
    grid-column: 1;
    grid-row: 1;
  }

  .cert:nth-child(odd) .description-container,
  .cert:nth-child(even) .description-container {
    grid-column: 1;
    grid-row: 2;
    text-align: center;
  }

  .cert-container img {
    width: 100%;
    height: auto;
    max-width: 400px;
  }

  .cert-container {
    display: flex;
    justify-content: center;
  }

  /* Education */
  .timeline-wrapper {
    padding: 0 20px;
    margin: 80px 0 60px;
  }

  /* Contact */
  .contact-container {
    flex-direction: column;
    padding: 0 20px;
    margin: 30px 0 60px;
    gap: 30px;
  }
}

/* Mobile */
@media screen and (max-width: 480px) {
  body {
    padding-top: 100px;
  }

  .site-title {
    font-size: 1.2rem;
  }

  .nav-list {
    gap: 8px;
  }

  .nav-list li a {
    font-size: 0.8rem;
  }

  .about-content {
    padding: 0 15px;
    margin: 60px 0 40px;
  }

  #intro-para {
    font-size: 22px;
  }

  .about-name {
    font-size: 32px;
  }

  .role-span {
    font-size: 22px;
  }

  .about-description {
    font-size: 16px;
  }

  .img-wrap {
    width: 220px;
    height: 220px;
  }

  .icon-btns img {
    width: 3rem;
    height: 3rem;
  }

  .icon-btns button {
    width: 120px;
    height: 50px;
    font-size: 0.9rem;
  }

  .section {
    margin: 20px 10px;
    padding: 10px;
  }

  .section-name-container h2 {
    margin: 20px 10px;
    font-size: 1.3rem;
  }

  /* Skills */
  .skill-category {
    gap: 15px;
  }

  .icon-image {
    width: 50px;
    height: 50px;
    padding: 8px;
  }

  .icon-image img {
    width: 35px;
    height: 35px;
  }

  /* Certifications */
  .cert {
    padding: 15px;
  }

  .cert-title {
    font-size: 1rem;
  }

  /* Education */
  .timeline-wrapper {
    padding: 0 15px;
    margin: 50px 0 40px;
  }

  .education-item {
    padding-left: 25px;
  }

  .education-item h3 {
    font-size: 0.95rem;
  }

  .education-item::before {
    width: 13px;
    height: 13px;
    left: -7px;
  }

  /* Contact */
  .contact-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 10px;
    margin: 20px 0 40px;
    gap: 0;
  }

  /* Footer */

  .site-footer {
    flex-direction: column;
    text-align: center;
  }

  .site-footer p {
    font-size: 0.6rem;
    color: #747474;
  }
}