/*===== HERO SECTION =====*/
.hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 6rem clamp(1rem, 4vw, 2rem) 5rem;
  gap: 2rem;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  isolation: isolate;
  width: 100%;
  max-width: none;
  margin-left: 0;
  margin-right: 0;
  box-sizing: border-box;
}

/* Full-bleed video + tint: span viewport edge-to-edge while section uses horizontal padding for content */
.hero__bg {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 100vw;
  max-width: none;
  transform: translateX(-50%);
  z-index: 0;
  overflow: hidden;
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.02);
}

.hero__bg-shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 100% 120% at 15% 30%, rgba(12, 28, 18, 0.45) 0%, transparent 55%),
    radial-gradient(ellipse 80% 100% at 90% 80%, rgba(35, 25, 15, 0.3) 0%, transparent 48%),
    linear-gradient(160deg, rgba(10, 22, 14, 0.4) 0%, rgba(20, 25, 18, 0.25) 42%, rgba(12, 18, 14, 0.35) 100%);
}

.hero__content {
  flex: 1 1 380px;
  min-width: 300px;
  max-width: 640px;
  z-index: 2;
  position: relative;
  /* Glass: readable body copy on video in light mode; dark mode overrides in themes.css */
  background: linear-gradient(135deg,
      rgba(255, 255, 255, 0.4) 0%,
      rgba(255, 255, 255, 0.26) 45%,
      rgba(248, 250, 252, 0.34) 100%);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  border-radius: 1.35rem;
  border: 1px solid rgba(255, 255, 255, 0.32);
  box-shadow:
    0 1px 1px rgba(255, 255, 255, 0.28) inset,
    0 8px 28px rgba(0, 0, 0, 0.16),
    0 20px 48px rgba(8, 20, 40, 0.22);
  padding: 2rem 2rem 1.75rem;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: hsl(var(--hue-primary), 45%, 34%);
  background: var(--first-color-light);
  border: 1px solid hsl(var(--hue-primary), 40%, 88%);
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.hero__title {
  font-family: var(--heading-font);
  font-size: 2.35rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--second-color);
}

.hero__title-color {
  background: linear-gradient(120deg, hsl(var(--hue-primary), 55%, 36%), hsl(16, 78%, 46%));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__subtitle {
  font-size: 1.15rem;
  /* Dark navy (not --text-muted): readable on translucent glass over bright video */
  color: hsl(var(--hue-navy), 34%, 20%);
  margin-bottom: 1.75rem;
  font-weight: 600;
  line-height: 1.58;
  max-width: 34rem;
  letter-spacing: 0.01em;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
}

.hero__stats li {
  flex: 1 1 140px;
  min-width: 120px;
  padding: 0.65rem 0.85rem;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.hero__stats strong {
  display: block;
  font-family: var(--heading-font);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--second-color);
}

.hero__stats span {
  font-size: 0.78rem;
  color: hsl(var(--hue-navy), 30%, 30%);
  font-weight: 500;
}

.hero__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero__img-wrapper {
  flex: 0 0 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  z-index: 2;
  position: relative;
}

.hero__img {
  width: 200px;
  height: 200px;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  border: 6px solid #fff;
  box-shadow: 0 8px 32px rgba(34, 34, 59, 0.15), 0 2px 8px rgba(0, 0, 0, 0.08);
  background: #fff;
  display: block;
  z-index: 2;
  position: relative;
}

.hero__img:hover,
.hero__img:focus {
  box-shadow: 0 12px 40px rgba(34, 34, 59, 0.25), 0 4px 16px rgba(0, 0, 0, 0.12);
}

.hero__social {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  align-items: center;
}

.hero__social-icon {
  font-size: 1.65rem;
  color: var(--second-color);
  transition: color 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.hero__social-icon:hover,
.hero__social-icon:focus {
  color: var(--first-color);
  transform: translateY(-2px);
}

/* HF raster: align with FA brand icons (hero FA ~1.65rem) */
.hero__social-icon .social-icon-hf--brand {
  width: 1.55rem;
  height: 1.55rem;
  display: block;
  object-fit: contain;
}

@media (prefers-reduced-motion: reduce) {
  .hero__video {
    display: none;
  }

  .hero__bg-shade {
    background:
      linear-gradient(145deg, hsl(var(--hue-navy), 38%, 18%) 0%, hsl(var(--hue-primary), 42%, 32%) 100%);
  }
}


.hero__scroll-indicator {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  z-index: 2;
  text-align: center;
  cursor: pointer;
  text-decoration: none;
  outline: none;
}

.hero__scroll-arrow {
  display: inline-block;
  font-size: 2.2rem;
  color: #fff;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.25));
  animation: scrollBounce 1.4s infinite;
  transition: color 0.2s;
}

.hero__scroll-indicator:hover .hero__scroll-arrow,
.hero__scroll-indicator:focus .hero__scroll-arrow {
  color: hsl(16, 90%, 75%);
}

/*===== ABOUT SECTION =====*/
.about__container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
  justify-content: center;
  row-gap: 2rem;
  text-align: center;
}



.about__content {
  flex: 1 1 300px;
  min-width: 250px;
}

.about__subtitle {
  font-family: var(--heading-font);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--second-color);
  margin-bottom: 0.65rem;
}

.about__text {
  font-size: 1.06rem;
  color: var(--text-muted);
  line-height: 1.75;
}

.about__text--second {
  margin-top: 1rem;
}

/*===== SKILLS SECTION =====*/
.skills__container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  justify-content: center;
  max-width: 1200px;
  margin: 0 auto;
  row-gap: 2rem;
  text-align: center;
}

.skills__group {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 1.5rem;
  box-shadow: 0 4px 20px rgba(34, 34, 59, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid hsla(var(--hue-primary), 50%, 45%, 0.12);
  overflow: hidden;
  flex: 1 1 220px;
  min-width: 220px;
  max-width: 320px;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 1.5rem 1rem;
  margin-bottom: 1rem;
}

.skills__group.active {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(34, 34, 59, 0.15);
}

.skills__category {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.3rem;
  color: var(--first-color);
  margin: 0;
  padding: 1.5rem 2rem;
  font-weight: 700;
  text-align: center;
  position: relative;
  cursor: pointer;
  transition: all 0.3s;
  background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
  user-select: none;
  margin-bottom: 1rem;
}

.skills__category:hover {
  background: linear-gradient(135deg, var(--first-color-light) 0%, #fff 100%);
  color: hsl(var(--hue-primary), 48%, 38%);
}

.skills__category::after {
  content: '\f078';
  font-family: 'Font Awesome 5 Free';
  font-weight: 900;
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  transition: transform 0.3s;
  font-size: 1rem;
  color: var(--first-color);
}

.skills__group.active .skills__category::after {
  transform: translateY(-50%) rotate(180deg);
}

.skills__category::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--first-color), hsl(var(--hue-primary), 45%, 52%));
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.3s;
}

.skills__group.active .skills__category::before {
  opacity: 1;
}

.skills__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), padding 0.5s;
  padding: 0 1.5rem;
}

.skills__group.active .skills__content {
  max-height: 2000px;
  padding: 1rem 1.5rem 2rem;
}

.skills__data {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
  margin-bottom: 1.5rem;
  padding: 1.5rem 1rem;
  border-radius: 1rem;
  box-shadow: 0 2px 12px rgba(34, 34, 59, 0.06);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.5s forwards;
  justify-content: space-between;
  align-items: center;
  font-weight: var(--font-semi);
  padding: 0.5rem 1rem;
  margin-bottom: var(--mb-4);
  border-radius: 0.5rem;
  box-shadow: 0px 4px 25px rgba(14, 36, 49, 0.15);
}

.skills__data:nth-child(1) {
  animation-delay: 0.1s;
}

.skills__data:nth-child(2) {
  animation-delay: 0.2s;
}

.skills__data:nth-child(3) {
  animation-delay: 0.3s;
}

.skills__data:nth-child(4) {
  animation-delay: 0.4s;
}

.skills__data:nth-child(5) {
  animation-delay: 0.5s;
}

.skills__data::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--first-color), hsl(var(--hue-primary), 45%, 52%));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.skills__data:hover::before {
  transform: scaleX(1);
}

.skills__data:focus,
.skills__data:hover {
  background: linear-gradient(135deg, #eef2ff 0%, #f8f9ff 100%);
  box-shadow: 0 8px 24px hsla(var(--hue-primary), 50%, 40%, 0.12);
  transform: translateY(-4px) scale(1.02);
}

.skills__progress-circle {
  position: relative;
  width: 120px;
  height: 120px;
  margin-bottom: 1rem;
}

.skills__progress-circle svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.skills__progress-bg {
  fill: none;
  stroke: #e0e7ff;
  stroke-width: 8;
}

.skills__progress-bar {
  fill: none;
  stroke: url(#skillGradient);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 339.292;
  stroke-dashoffset: 339.292;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.skills__data:hover .skills__progress-bar,
.skills__data:focus .skills__progress-bar {
  stroke-dashoffset: calc(339.292 - (339.292 * var(--progress) / 100));
}

.skills__progress-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--first-color);
  font-family: 'Montserrat', sans-serif;
}

.skills__names {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 1.2rem;
  font-weight: 600;
  color: #22223b;
  margin-bottom: 0.5rem;
}

.skills__icon {
  font-size: 1.8rem;
  color: var(--first-color);
  background: linear-gradient(135deg, #eef2ff, #ddd6fe);
  padding: 0.6rem;
  border-radius: 0.8rem;
  box-shadow: 0 2px 8px hsla(var(--hue-primary), 50%, 40%, 0.15);
  transition: transform 0.3s;
  margin-right: var(--mb-2);
}

.skills__data:hover .skills__icon {
  transform: scale(1.1) rotate(5deg);
}

.skills__desc {
  font-size: 0.95rem;
  color: #6b7280;
  text-align: center;
  margin-top: 0.5rem;
  font-style: italic;
}

.skills__bar {
  position: absolute;
  left: 0;
  bottom: 0;
  background-color: var(--first-color);
  height: 0.25rem;
  border-radius: 0.5rem;
  z-index: var(--z-back);
  display: none;
}

.skills__html {
  width: 90%;
}

.skills__cprogram {
  width: 95%;
}

.skills__java {
  width: 60%;
}

.skills__python {
  width: 65%;
}

.skills__Cpp {
  width: 85%;
}

.skills__Linux {
  width: 85%;
}

.skills__Microcontroller {
  width: 50%;
}

.skills__img {
  border-radius: 0.5rem;
}

.skills__percentage {
  display: none;
}

.skills__subtitle {
  margin-bottom: var(--mb-2);
}

.skills__text {
  margin-bottom: var(--mb-4);
}

.skills__data[data-level="expert"] .skills__progress-bar {
  stroke: url(#expertGradient);
}

.skills__data[data-level="advanced"] .skills__progress-bar {
  stroke: url(#advancedGradient);
}

.skills__data[data-level="intermediate"] .skills__progress-bar {
  stroke: url(#intermediateGradient);
}

/*===== PROJECTS SECTION =====*/
.projects__container {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}

.project__img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  object-position: center;
  border-radius: 1rem 1rem 0 0;
  box-shadow: 0 2px 8px rgba(34, 34, 59, 0.08);
  background: #fff;
  display: block;
  transition: transform 0.4s cubic-bezier(.77, 0, .18, 1), box-shadow 0.3s;
}

.project__card:hover .project__img,
.project__img:focus {
  transform: scale(1.07) rotate(-1deg);
  box-shadow: 0 8px 32px rgba(34, 34, 59, 0.13);
  z-index: 1;
}

.project__info {
  padding: 1.2rem 1rem 1rem 1rem;
}

.project__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #22223b;
  margin-bottom: 0.3rem;
}

.project__desc {
  font-size: 1rem;
  color: #4a4e69;
  margin-bottom: 0.7rem;
}

.project__link {
  color: var(--first-color);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: underline;
  transition: color 0.2s;
}

.project__link:hover,
.project__link:focus {
  color: #22223b;
}

.project__details-btn {
  display: inline-block;
  margin-top: 0.7rem;
  padding: 0.5rem 1.2rem;
  background: var(--first-color);
  color: #fff;
  border: none;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  box-shadow: 0 1px 4px rgba(34, 34, 59, 0.07);
}

.project__details-btn:hover,
.project__details-btn:focus {
  background: #22223b;
  color: #fff;
  outline: none;
}

.project__tech-icons,
.project__modal-tech-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.5rem 0 0.5rem 0;
  align-items: center;
}

.project__tech-icon,
.project__modal-tech-icon {
  font-size: 1.3rem;
  color: #4a4e69;
  background: #f0e9ff;
  border-radius: 0.4rem;
  padding: 0.2rem 0.4rem;
  display: flex;
  align-items: center;
  transition: background 0.2s, color 0.2s;
}

.project__tech-icon[data-tech="Python"],
.project__modal-tech-icon[data-tech="Python"] {
  color: #3572A5;
}

.project__tech-icon[data-tech="C"],
.project__modal-tech-icon[data-tech="C"] {
  color: #555;
}

.project__tech-icon[data-tech="Java"],
.project__modal-tech-icon[data-tech="Java"] {
  color: #b07219;
}

.project__tech-icon[data-tech="Linux"],
.project__modal-tech-icon[data-tech="Linux"] {
  color: #22223b;
}

.project__tech-icon[data-tech="AI"],
.project__modal-tech-icon[data-tech="AI"] {
  color: #7c3aed;
}

.project__tech-icon[data-tech="Networking"],
.project__modal-tech-icon[data-tech="Networking"] {
  color: #0ea5e9;
}

.project__modal-img {
  width: 100%;
  max-width: 420px;
  border-radius: 1rem;
  box-shadow: 0 2px 16px rgba(34, 34, 59, 0.09);
  margin-bottom: 1rem;
}

.project__modal-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: #22223b;
  margin-bottom: 0.2rem;
  text-align: center;
}

.project__modal-desc {
  font-size: 1.1rem;
  color: #4a4e69;
  margin-bottom: 0.7rem;
  text-align: center;
}

.project__modal-links {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
  justify-content: center;
}

.project__modal-links a {
  color: var(--first-color);
  font-weight: 600;
  font-size: 1.1rem;
  text-decoration: underline;
  transition: color 0.2s;
}

.project__modal-links a:hover,
.project__modal-links a:focus {
  color: #22223b;
}

/*===== WORK SECTION =====*/
.work__container {
  row-gap: 2rem;
}

.work__img {
  box-shadow: 0px 4px 25px rgba(14, 36, 49, 0.15);
  border-radius: 0.5rem;
  overflow: hidden;
}

.work__img img {
  transition: 1s;
}

.work__img img:hover {
  transform: scale(1.1);
}

/*===== TEAM (members) SECTION =====*/
#team-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  max-width: 1100px;
  margin: 0 auto;
}

.team__card {
  background: var(--surface-card);
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid hsla(var(--hue-primary), 35%, 88%, 0.7);
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.08);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.team__card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px hsla(var(--hue-primary), 35%, 40%, 0.12);
}

.team__photo-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 0.85rem;
}

.team__photo {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid hsla(var(--hue-primary), 40%, 90%, 0.95);
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.1);
}

.team__name {
  font-family: var(--heading-font);
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 0 0.25rem;
  letter-spacing: -0.02em;
  color: var(--second-color);
}

.team__title-role {
  font-family: var(--heading-font);
  font-size: 0.92rem;
  font-weight: 600;
  margin: 0 0 0.6rem;
  color: hsl(var(--hue-primary), 48%, 34%);
}

.team__date {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0 0 1rem;
}

.team__desc {
  color: hsl(var(--hue-navy), 30%, 24%);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.55;
  margin: 0;
  text-align: left;
}

/*===== TIMELINE/EXPERIENCE SECTION =====*/
.timeline__container {
  position: relative;
  margin: 2.5rem auto;
  max-width: 700px;
  padding-left: 2.5rem;
  border-left: 3px solid transparent;
  background: none;
}

.timeline__container::after {
  content: "";
  display: table;
  clear: both;
}

.timeline__container::before {
  content: '';
  position: absolute;
  left: 1.1rem;
  top: 0;
  width: 6px;
  height: 100%;
  background: linear-gradient(180deg, var(--first-color) 0%, #e0e7ff 100%);
  border-radius: 3px;
  opacity: 0.18;
  z-index: 0;
}

.timeline__item {
  position: relative;
  display: flex;
  flex-direction: column;
  margin-bottom: 3.2rem;
  padding: 1.2rem 1rem;
  background: none;
  transition: box-shadow 0.2s, background 0.2s, opacity 0.7s, transform 0.7s;
  z-index: 1;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.timeline__item:last-child {
  margin-bottom: 0;
}

.timeline__item:focus-within,
.timeline__item:hover {
  background: #f0f4ff;
  box-shadow: 0 2px 16px rgba(34, 34, 59, 0.07);
  border-radius: 1rem;
}

.timeline__header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
  flex-wrap: wrap;
}

.timeline__icon {
  width: 2.3rem;
  height: 2.3rem;
  min-width: 2.3rem;
  min-height: 2.3rem;
  background: #fff;
  border: 3px solid var(--first-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--first-color);
  box-shadow: 0 2px 8px rgba(34, 34, 59, 0.08);
  z-index: 2;
  transition: box-shadow 0.2s, border-color 0.2s, color 0.2s, background 0.2s;
  outline: none;
  position: relative;
}

.timeline__icon:focus,
.timeline__icon:hover {
  box-shadow: 0 0 0 6px var(--first-color-light), 0 2px 8px rgba(34, 34, 59, 0.13);
  border-color: hsl(var(--hue-primary), 48%, 42%);
  color: hsl(var(--hue-primary), 48%, 42%);
}

.timeline__icon.pulse {
  animation: timelinePulse 1.2s infinite;
}

.timeline__icon[tabindex="0"]:after {
  content: attr(title);
  position: absolute;
  left: 110%;
  top: 50%;
  transform: translateY(-50%);
  background: #22223b;
  color: #fff;
  font-size: 0.85rem;
  padding: 0.2rem 0.7rem;
  border-radius: 0.4rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.timeline__icon[tabindex="0"]:focus:after,
.timeline__icon[tabindex="0"]:hover:after {
  opacity: 1;
}

.timeline__date {
  display: inline-block;
  font-size: 0.98rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(90deg, var(--first-color) 35%, hsl(var(--hue-primary), 42%, 45%) 100%);
  border-radius: 1.2rem;
  padding: 0.18rem 1.1rem 0.18rem 1.1rem;
  margin-bottom: 0.3rem;
  letter-spacing: 0.5px;
  box-shadow: 0 1px 4px rgba(34, 34, 59, 0.07);
  align-self: flex-start;
}

.timeline__content {
  flex: 1;
}

.timeline__role {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--second-color);
  margin-bottom: 0.18rem;
  letter-spacing: 0.2px;
}

.timeline__desc {
  font-size: 1.01rem;
  color: var(--text-muted);
  line-height: 1.6;
  font-weight: 400;
  margin-top: 0.1rem;
}

.timeline__item[data-type="education"] .timeline__icon {
  color: #3b82f6;
  border-color: #3b82f6;
}

.timeline__item[data-type="internship"] .timeline__icon {
  color: #f59e42;
  border-color: #f59e42;
}

.timeline__item[data-type="project"] .timeline__icon {
  color: #7c3aed;
  border-color: #7c3aed;
}

/*===== ACHIEVEMENTS SECTION =====*/
.achievements__container {
  row-gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.achievement__icon {
  font-size: 2rem;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.1);
  width: 4rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.achievement__icon-link {
  font-size: 2rem;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.1);
  width: 4rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  text-decoration: none;
}

.achievement__icon-link:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.achievement__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.achievement__fallback-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.achievement__content {
  flex: 1;
}

.achievement__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--second-color);
  margin-bottom: 0.25rem;
}

.achievement__issuer {
  font-size: 0.9rem;
  color: #6b7280;
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.achievement__desc {
  font-size: 0.95rem;
  color: #4b5563;
  margin-bottom: 1rem;
  line-height: 1.5;
  white-space: pre-line;
}

.achievement__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--first-color);
  font-weight: 600;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.achievement__link:hover {
  color: var(--second-color);
}

/*===== CONTACT SECTION =====*/
.contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-top: 2rem;
}

.contact__icon {
  font-size: 2rem;
  color: var(--second-color);
  margin-left: 0.5rem;
  transition: color 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.contact__icon:hover,
.contact__icon:focus {
  color: var(--first-color);
}

.contact__icon .social-icon-hf--brand {
  width: 1.9rem;
  height: 1.9rem;
  display: block;
  object-fit: contain;
}

/*===== SECTION DIVIDERS (wave + accent — between content bands) =====*/
main > .section::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3.5rem;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(90deg,
      transparent 0%,
      hsla(var(--hue-primary), 55%, 42%, 0.22) 22%,
      hsla(16, 72%, 52%, 0.18) 50%,
      hsla(var(--hue-primary), 55%, 42%, 0.22) 78%,
      transparent 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 56' preserveAspectRatio='none'%3E%3Cpath fill='%23ffffff' fill-opacity='0.72' d='M0 40 C320 14 560 52 880 34 C1080 22 1260 8 1440 22 V56 H0Z'/%3E%3C/svg%3E");
  background-size: 100% 4px, 100% 100%;
  background-position: center calc(50% + 14px), center top;
  background-repeat: no-repeat;
}

main > .section:nth-child(even)::before {
  transform: scaleX(-1);
  transform-origin: center top;
}

/* Softer crest on narrower screens */
@media (max-width: 600px) {
  main > .section::before {
    height: 2.75rem;
    background-size: 100% 3px, 220% 100%;
    background-position: center calc(50% + 10px), 50% top;
  }
}

/*===== SECTION BACKGROUNDS (club: soft bands, no harsh rainbow) =====*/
.about.section {
  background: linear-gradient(165deg, var(--surface-page) 0%, hsl(var(--hue-primary), 28%, 94%) 55%, var(--accent-color-soft) 100%);
}

.what-we-do.section {
  background: linear-gradient(175deg, hsl(16, 55%, 97%) 0%, var(--surface-page) 45%, hsl(var(--hue-primary), 22%, 95%) 100%);
}

.domains.section {
  background: linear-gradient(170deg, hsl(var(--hue-primary), 24%, 96%) 0%, var(--surface-page) 100%);
}

.objectives.section {
  background: linear-gradient(168deg, var(--surface-page) 0%, hsl(var(--hue-navy), 18%, 94%) 100%);
}

.benefits.section {
  background: linear-gradient(172deg, hsl(var(--hue-primary), 20%, 96%) 0%, var(--surface-page) 100%);
}

.projects.section {
  background: linear-gradient(170deg, hsl(var(--hue-primary), 24%, 96%) 0%, var(--surface-page) 100%);
}

.achievements.section {
  background: linear-gradient(168deg, var(--surface-page) 0%, hsl(var(--hue-navy), 18%, 94%) 100%);
}

.timeline.section {
  background: linear-gradient(172deg, hsl(var(--hue-primary), 20%, 96%) 0%, var(--surface-page) 100%);
}

.contact.section {
  background: linear-gradient(160deg, hsl(var(--hue-navy), 22%, 97%) 0%, hsl(var(--hue-primary), 26%, 94%) 100%);
}

/*===== SEARCH MISSION CONTENT =====*/
.ios-pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  max-width: 1100px;
  margin: 0 auto;
}

.ios-pillar-card {
  background: var(--surface-card);
  border-radius: 1rem;
  padding: 1.35rem 1.25rem;
  border: 1px solid hsla(var(--hue-primary), 35%, 85%, 0.65);
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.ios-pillar-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px hsla(var(--hue-primary), 40%, 40%, 0.12);
}

.ios-pillar-card__icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--first-color-light);
  color: hsl(var(--hue-primary), 48%, 34%);
  font-size: 1.25rem;
  margin-bottom: 0.85rem;
}

.ios-pillar-card__title {
  font-family: var(--heading-font);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--second-color);
  margin: 0 0 0.5rem;
}

.ios-pillar-card__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.ios-domain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  max-width: 1100px;
  margin: 0 auto;
}

.ios-domain-card {
  background: var(--surface-card);
  border-radius: 1rem;
  padding: 1.35rem 1.3rem;
  border: 1px solid hsla(var(--hue-primary), 32%, 88%, 0.8);
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.05);
}

.ios-domain-card__title {
  font-family: var(--heading-font);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--second-color);
  margin: 0 0 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ios-domain-card__title i {
  color: hsl(var(--hue-primary), 48%, 38%);
}

.ios-domain-card__list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.55;
}

.ios-domain-card__list li {
  margin-bottom: 0.35rem;
}

.ios-objectives,
.ios-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: 1000px;
  margin: 0 auto;
  align-items: start;
}

.ios-panel {
  background: var(--surface-card);
  border-radius: 1rem;
  padding: 1.5rem 1.35rem;
  border: 1px solid hsla(var(--hue-primary), 30%, 88%, 0.75);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
}

.ios-panel--primary {
  border-left: 4px solid var(--first-color);
}

.ios-panel--secondary {
  border-left: 4px solid var(--accent-color);
}

.ios-panel__heading {
  font-family: var(--heading-font);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--second-color);
  margin: 0 0 1rem;
}

.ios-def-list {
  margin: 0;
}

.ios-def-list dt {
  font-weight: 700;
  color: var(--second-color);
  margin-top: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.98rem;
}

.ios-def-list dt:first-child {
  margin-top: 0;
}

.ios-def-list dt i {
  color: var(--first-color);
  width: 1.2rem;
}

.ios-def-list dd {
  margin: 0.35rem 0 0 1.65rem;
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.ios-check-list {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.ios-check-list li {
  position: relative;
  padding-left: 1.35rem;
  margin-bottom: 0.65rem;
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.ios-check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--first-color);
}

.ios-check-list--spaced li {
  margin-bottom: 0.85rem;
}

@media screen and (max-width: 767px) {

  .ios-objectives,
  .ios-benefits {
    grid-template-columns: 1fr;
  }
}