/* Keep the introduction compact enough for About to enter the first viewport. */
#hero {
  min-height: auto;
  padding: clamp(44px, 6vh, 68px) 0 clamp(28px, 4vh, 44px) !important;
}

#hero > .container {
  padding-top: 0 !important;
}

#hero > .container > .row {
  align-items: center;
}

#hero a.btn,
#hero a.btn.social-icon {
  margin-top: 32px;
}

#about {
  scroll-margin-top: var(--header-offset, 88px);
  padding-top: clamp(96px, 12vh, 136px) !important;
}

#about > .container > h3 {
  margin: 0;
}

#about > .container > .row {
  padding-top: clamp(26px, 4vh, 40px) !important;
}

#about .about-skills-section {
  /* The About intro already provides 48px below its content. Together these
     match the 96px rhythm created by adjacent py-5 homepage sections. */
  margin-top: 48px;
}

#about .about-skills-section > h3 {
  margin: 0 0 clamp(32px, 5vh, 46px);
}

#about .about-skill-card--wide .card-body {
  padding: clamp(1.25rem, 3vw, 1.75rem);
}

#about .about-skill-card {
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--primary-color) 14%, transparent);
}

#about .about-skill-card .card-body {
  display: flex;
  flex-direction: column;
}

#about .skills-category {
  margin-bottom: 1rem;
}

#about .software-skill-groups {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

#about .software-skill-group {
  --skill-accent: #72a4f2;
  min-width: 0;
  padding: 13px 14px;
  grid-column: span 2;
  border: 1px solid color-mix(in srgb, var(--skill-accent) 32%, transparent);
  border-radius: 12px;
  background: color-mix(in srgb, var(--skill-accent) 7%, var(--background-color));
}

#about .software-skill-group:nth-child(4),
#about .software-skill-group:nth-child(5) {
  grid-column: span 3;
}

#about .software-skill-group--cyan { --skill-accent: #39b9c6; }
#about .software-skill-group--violet { --skill-accent: #a88bea; }
#about .software-skill-group--green { --skill-accent: #55b98a; }
#about .software-skill-group--amber { --skill-accent: #d5a548; }

#about .software-skill-group__heading {
  display: flex;
  margin-bottom: 7px;
  align-items: center;
  gap: 8px;
  color: var(--text-color);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

#about .software-skill-group__dot {
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  border-radius: 50%;
  background: var(--skill-accent);
}

#about .software-skill-group p {
  margin: 0;
  color: var(--text-secondary-color);
  font-size: 0.9rem;
  line-height: 1.55;
}

#about .skills-description {
  max-width: 720px;
  margin: 0;
  color: var(--text-color);
  font-size: 0.98rem;
  line-height: 1.7;
}

.dark #about .skills-description {
  color: #fff;
}

#about ul.skills-list li {
  display: flex;
  padding-left: 0;
  align-items: center;
  gap: 10px;
}

#about ul.skills-list li::before {
  position: static;
  width: 5px;
  height: 5px;
  flex: 0 0 5px;
  border-radius: 50%;
  background: var(--primary-color);
  content: "";
  transform: none;
}

#about .about-meta-section {
  width: 100%;
  margin: clamp(72px, 9vh, 96px) 0 0;
}

#about .about-meta-stack {
  display: grid;
  gap: 16px;
}

#about .about-meta-card {
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--primary-color) 14%, transparent) !important;
  border-radius: 16px;
  background: var(--background-color);
}

#about .about-lang-card {
  overflow: visible;
}

#about .about-meta-card .card-body {
  padding: clamp(1.25rem, 3vw, 1.75rem);
}

#about .about-meta-title {
  margin: 0 0 18px;
  color: var(--text-color) !important;
}

#about .about-language-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

#about .about-cert-list {
  display: grid;
  gap: 9px;
}

#about .language-row {
  position: relative;
  display: grid;
  min-height: 46px;
  padding: 7px 12px;
  grid-template-columns: minmax(0, 1fr);
  align-content: center;
  gap: 0;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 12px;
  background: transparent;
}

#about .language-summary,
#about .language-name-line,
#about .language-meter,
#about .language-score,
#about .language-tools {
  display: flex;
  align-items: center;
}

#about .language-summary {
  justify-content: space-between;
  gap: 18px;
}

#about .language-name-line {
  min-width: 88px;
  gap: 8px;
}

#about .lang-name {
  color: var(--text-color);
  font-weight: 700;
}

#about .language-meter {
  gap: 6px;
}

#about .language-score {
  gap: 10px;
}

#about .language-tools {
  gap: 6px;
}

#about .language-meter__dot {
  width: 10px;
  height: 10px;
  flex: 0 0 10px;
  border: 1px solid color-mix(in srgb, var(--language-dot-color) 68%, transparent);
  border-radius: 50%;
  background: transparent;
}

#about .language-meter__dot.is-active {
  border-color: var(--language-dot-color);
  background: var(--language-dot-color);
}

#about .language-meter__dot.is-learning {
  border-color: var(--language-dot-color);
  animation: language-learning-pulse 1.65s ease-in-out infinite;
}

@keyframes language-learning-pulse {
  0%, 100% {
    background: transparent;
    opacity: 0.5;
    transform: scale(0.85);
  }
  50% {
    background: var(--language-dot-color);
    opacity: 1;
    transform: scale(1.1);
  }
}

#about .language-tooltip {
  position: relative;
  display: inline-flex;
}

#about .language-tool {
  display: grid;
  width: 22px;
  height: 22px;
  padding: 0;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--text-secondary-color) 45%, transparent);
  border-radius: 50%;
  background: transparent;
  color: var(--text-secondary-color);
  cursor: help;
  font-family: "Roboto", sans-serif;
  font-size: 0.7rem;
  font-weight: 800;
  line-height: 1;
}

#about .language-tool--credential {
  border-color: color-mix(in srgb, var(--primary-color) 45%, transparent);
  color: var(--primary-color);
  font-size: 0.68rem;
}

#about .language-tool:hover,
#about .language-tool:focus-visible {
  border-color: var(--primary-color);
  color: var(--primary-color);
  outline: none;
}

#about .language-tooltip__content {
  position: absolute;
  z-index: 20;
  top: calc(100% + 8px);
  right: 0;
  width: max-content;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px);
  transition: opacity 140ms ease, transform 140ms ease, visibility 140ms ease;
  visibility: hidden;
}

#about .language-tooltip__content::before {
  position: absolute;
  right: 7px;
  bottom: 100%;
  border: 5px solid transparent;
  border-bottom-color: color-mix(in srgb, var(--primary-color) 24%, transparent);
  content: "";
}

#about .language-tooltip__content--credential {
  display: grid;
  min-width: 170px;
  gap: 2px;
}

#about .language-tooltip__content--credential strong {
  color: var(--text-color);
  font-size: 0.8rem;
}

#about .language-tooltip__content--credential strong span,
#about .language-tooltip__content--credential small {
  color: var(--text-secondary-color);
  font-weight: 500;
}

#about .language-tooltip:hover .language-tooltip__content,
#about .language-tooltip:focus-within .language-tooltip__content {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

#about .cert-row {
  display: grid;
  padding: 13px;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 12px;
  background: transparent;
}

#about .cert-copy {
  display: grid;
  gap: 2px;
}

#about .cert-name {
  color: var(--text-color);
  font-size: 0.92rem;
}

#about .cert-meta {
  color: var(--text-secondary-color);
  font-size: 0.8rem;
}

/* Keep the CV sections on one visual grid and use the quieter Experience
   surface treatment for every Education entry. */
@media (min-width: 768px) {
  #experience .container > .row > .col-md-8 {
    width: 75%;
  }
}

#education .container > .row > .col-12 > .row {
  margin-right: 0 !important;
  margin-left: 0 !important;
}

#education .card,
#education .card:hover {
  border: 0 !important;
  border-radius: 0.75rem;
  background-color: var(--secondary-color) !important;
  box-shadow: 0 8px 56px rgb(15 80 100 / 16%);
  transform: none;
  transition: none;
}

#education .card .card-body {
  border-radius: 0.75rem;
}

#projects .card {
  position: relative;
}

#projects .project-card__article-link {
  position: absolute;
  z-index: 1;
  inset: 0;
  border-radius: inherit;
}

#projects .project-card__article-link:focus-visible {
  outline: 3px solid var(--primary-color);
  outline-offset: 4px;
}

#projects .card-footer a,
#projects .project-card__article-label {
  position: relative;
  z-index: 2;
}

#projects .project-card__article-label {
  display: inline-flex;
  margin-top: 12px;
  align-items: center;
  gap: 7px;
  color: var(--text-link-color);
  font-size: 0.78rem;
  font-weight: 700;
  text-decoration: none;
}

#hero .image img,
#hero .image.animate img,
#hero .image.animate img:hover {
  filter: contrast(1.12) brightness(1.04);
}

@media (min-width: 992px) {
  #hero .image {
    padding-top: 0 !important;
  }

  #hero .image img {
    width: auto;
    max-width: min(100%, 410px);
    max-height: 410px;
    transform: none;
  }
}

@media (min-width: 1200px) {
  #hero > .container > .row > .content {
    width: 58.333333%;
  }

  #hero > .container > .row > :last-child {
    width: 41.666667%;
  }

  #hero .image img {
    max-width: min(100%, 520px);
    max-height: 520px;
  }
}

@media (max-width: 575.98px) {
  #hero {
    padding: 28px 0 58px !important;
  }

  #hero > .container {
    padding-right: 22px !important;
    padding-left: 22px !important;
  }

  #hero h1 {
    font-size: clamp(3rem, 15vw, 4rem);
  }

  #hero h2 {
    margin-top: 8px;
    font-size: clamp(2rem, 9.5vw, 2.55rem);
    line-height: 1.12;
  }

  #hero .hero-content {
    margin-top: 22px;
    font-size: 1rem;
    line-height: 1.7;
  }

  #hero .image {
    margin-top: 42px;
    padding: 0 4px !important;
  }

  #hero .image img {
    width: min(100%, 340px);
    max-height: none;
  }

  #hero a.btn,
  #hero a.btn.social-icon {
    margin-top: 26px;
  }

  #about {
    padding-top: 88px !important;
  }

  #about > .container,
  #experience > .container,
  #education > .container,
  #projects > .container,
  #achievements > .container,
  #contact > .container {
    padding-right: 18px;
    padding-left: 18px;
  }

  #about .about-intro {
    padding-top: 30px !important;
    padding-bottom: 48px !important;
  }

  #about .about-skills-section > h3 {
    margin-bottom: 28px;
  }

  #about .about-skills-section {
    margin-top: 48px;
  }

  #about .software-skill-groups {
    grid-template-columns: 1fr;
  }

  #about .software-skill-group,
  #about .software-skill-group:nth-child(4),
  #about .software-skill-group:nth-child(5) {
    grid-column: auto;
  }

  #about .about-language-list {
    grid-template-columns: 1fr;
  }

  #about .about-meta-section {
    margin-top: 64px;
  }

  #about .language-row { padding: 7px 10px; }

  #about .language-summary {
    justify-content: space-between;
  }

  #experience,
  #education,
  #projects,
  #achievements,
  #contact {
    padding-top: 64px !important;
    padding-bottom: 64px !important;
  }

  #experience .container > .row > div,
  #education .container > .row {
    padding-top: 30px !important;
    padding-bottom: 0 !important;
  }

  #experience .nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
  }

  #experience .nav::-webkit-scrollbar {
    display: none;
  }

  #experience .nav-link {
    white-space: nowrap;
  }

  #projects .container > .row,
  #achievements .container .row {
    padding-right: 4px !important;
    padding-left: 4px !important;
  }

  #projects .card {
    min-height: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  #about .language-meter__dot.is-learning {
    animation: none;
    outline: 3px solid color-mix(in srgb, var(--primary-color) 25%, transparent);
  }
}