/* Constellation Skill Matrix — progressive, semantic redesign */
#technical-skills.constellation-skills-section {
  --constellation-bg: #050a1c;
  --constellation-panel: rgba(10, 18, 44, 0.78);
  --constellation-panel-strong: rgba(14, 24, 56, 0.92);
  --constellation-line: rgba(99, 174, 255, 0.26);
  --constellation-cyan: #61e7ff;
  --constellation-violet: #a879ff;
  --constellation-blue: #6ea8ff;
  --constellation-text: #f4f7ff;
  --constellation-muted: #9aa8c7;
  position: relative;
  isolation: isolate;
  overflow: clip;
  padding: clamp(3.25rem, 6vw, 4.25rem) 1.25rem;
  background:
    radial-gradient(circle at 58% 48%, rgba(78, 98, 210, 0.16), transparent 28rem),
    radial-gradient(circle at 87% 40%, rgba(168, 121, 255, 0.09), transparent 24rem),
    linear-gradient(145deg, #030714 0%, var(--constellation-bg) 48%, #070b20 100%);
  color: var(--constellation-text);
}

#technical-skills.constellation-skills-section::before,
#technical-skills.constellation-skills-section::after {
  content: "";
  position: absolute;
  pointer-events: none;
  z-index: -1;
}

#technical-skills.constellation-skills-section::before {
  inset: 0;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(108, 146, 229, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 146, 229, 0.09) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 60% 45%, black, transparent 72%);
}

#technical-skills.constellation-skills-section::after {
  width: 32rem;
  height: 32rem;
  right: -18rem;
  top: 16%;
  border: 1px solid rgba(97, 231, 255, 0.12);
  border-radius: 50%;
  box-shadow: 0 0 0 2rem rgba(97, 231, 255, 0.025), 0 0 0 5rem rgba(168, 121, 255, 0.025);
}

.constellation-skills-section .cyber-matrix,
.constellation-skills-section .floating-particles,
.constellation-skills-section .holographic-grid,
.constellation-skills-section .quantum-field {
  opacity: 0.08;
  pointer-events: none;
}

.constellation-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(190px, 0.78fr) minmax(420px, 1.7fr) minmax(260px, 0.96fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 4.5rem);
  width: min(1240px, 100%);
  margin: 0 auto;
}

.constellation-intro {
  max-width: 18rem;
}

.constellation-eyebrow,
.constellation-kicker,
.constellation-proof-label,
.constellation-node-label,
.constellation-legend-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.constellation-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--constellation-violet);
}

.constellation-eyebrow::before {
  content: "";
  width: 2.2rem;
  height: 1px;
  background: linear-gradient(90deg, var(--constellation-violet), transparent);
}

.constellation-title {
  margin: 0.8rem 0 1.1rem;
  color: var(--constellation-text);
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2.2rem, 4.4vw, 4.4rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.constellation-title span {
  display: block;
  color: transparent;
  background: linear-gradient(100deg, var(--constellation-cyan), var(--constellation-violet));
  background-clip: text;
  -webkit-background-clip: text;
}

.constellation-intro-copy {
  max-width: 17rem;
  margin: 0;
  color: var(--constellation-muted);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.98rem;
  line-height: 1.7;
}

.constellation-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.5rem 0 0;
}

.constellation-stat {
  padding: 0.5rem 0.68rem;
  border: 1px solid rgba(97, 231, 255, 0.2);
  border-radius: 999px;
  color: #cceeff;
  background: rgba(97, 231, 255, 0.055);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.constellation-legend {
  display: grid;
  gap: 0.7rem;
  margin-top: 2rem;
  padding-top: 1.15rem;
  border-top: 1px solid rgba(164, 184, 255, 0.14);
}

.constellation-legend-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--constellation-muted);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.90rem;
  line-height: 1.4;
}

.constellation-legend-dot {
  width: 0.55rem;
  height: 0.55rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--constellation-cyan);
  box-shadow: 0 0 14px rgba(97, 231, 255, 0.8);
}

.constellation-legend-dot.violet {
  background: var(--constellation-violet);
  box-shadow: 0 0 14px rgba(168, 121, 255, 0.8);
}

.constellation-stage {
  position: relative;
  display: grid;
  place-items: center;
  width: min(100%, 560px);
  aspect-ratio: 1;
  min-height: 430px;
  margin-inline: auto;
}

.constellation-stage::before {
  content: "";
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(97, 231, 255, 0.09);
  border-radius: 50%;
  box-shadow: 0 0 80px rgba(97, 231, 255, 0.06), inset 0 0 80px rgba(168, 121, 255, 0.04);
}

.constellation-svg {
  position: absolute;
  inset: 4%;
  width: 92%;
  height: 92%;
  overflow: visible;
  pointer-events: none;
}

.constellation-orbit-ring {
  fill: none;
  stroke: rgba(114, 153, 255, 0.15);
  stroke-width: 1;
  stroke-dasharray: 2 11;
}

.constellation-connection {
  fill: none;
  stroke: var(--constellation-line);
  stroke-width: 1.4;
  transition: stroke 220ms ease, stroke-width 220ms ease, opacity 220ms ease;
}

.constellation-connection.is-active {
  stroke: var(--constellation-cyan);
  stroke-width: 2.8;
  opacity: 0.95;
  filter: drop-shadow(0 0 4px rgba(97, 231, 255, 0.65));
}

.constellation-hub {
  position: absolute;
  left: 50%;
  top: 50%;
  display: grid;
  place-items: center;
  width: clamp(8.3rem, 23vw, 11.5rem);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(97, 231, 255, 0.65);
  border-radius: 50%;
  color: #ffffff;
  background:
    radial-gradient(circle at 35% 25%, rgba(97, 231, 255, 0.96), rgba(101, 90, 255, 0.7) 44%, rgba(52, 30, 137, 0.58) 72%, rgba(6, 12, 37, 0.88) 100%);
  box-shadow: 0 0 38px rgba(97, 231, 255, 0.22), inset 0 0 28px rgba(255, 255, 255, 0.18);
  text-align: center;
}

.constellation-hub::before,
.constellation-hub::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(168, 121, 255, 0.3);
  border-radius: 50%;
}

.constellation-hub::before { inset: -0.85rem; }
.constellation-hub::after { inset: -1.55rem; opacity: 0.42; }

.constellation-hub-title {
  position: relative;
  z-index: 1;
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(0.9rem, 1.8vw, 1.1rem);
  letter-spacing: 0.18em;
  line-height: 1.6;
}

.constellation-node {
  position: absolute;
  left: var(--node-x);
  top: var(--node-y);
  display: grid;
  place-items: center;
  gap: 0.2rem;
  width: clamp(5.9rem, 13vw, 7.9rem);
  aspect-ratio: 1;
  padding: 0.55rem;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(97, 231, 255, 0.52);
  border-radius: 50%;
  color: var(--constellation-text);
  background: linear-gradient(145deg, rgba(31, 54, 112, 0.74), rgba(7, 15, 43, 0.94));
  box-shadow: 0 0 22px rgba(97, 231, 255, 0.1), inset 0 0 20px rgba(97, 231, 255, 0.05);
  cursor: pointer;
  font: inherit;
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease, background 220ms ease;
}

.constellation-node:hover,
.constellation-node:focus-visible,
.constellation-node.is-active {
  z-index: 3;
  transform: translate(-50%, -50%) scale(1.11);
  border-color: var(--constellation-cyan);
  background: linear-gradient(145deg, rgba(50, 88, 157, 0.92), rgba(23, 23, 76, 0.96));
  box-shadow: 0 0 28px rgba(97, 231, 255, 0.36), inset 0 0 26px rgba(97, 231, 255, 0.11);
}

.constellation-node:focus-visible {
  outline: 3px solid rgba(168, 121, 255, 0.9);
  outline-offset: 5px;
}

.constellation-node[data-domain="forensics"],
.constellation-node[data-domain="data"] {
  border-color: rgba(168, 121, 255, 0.72);
}

.constellation-node[data-domain="forensics"].is-active,
.constellation-node[data-domain="data"].is-active {
  border-color: var(--constellation-violet);
  box-shadow: 0 0 30px rgba(168, 121, 255, 0.38), inset 0 0 26px rgba(168, 121, 255, 0.12);
}

.constellation-node-icon {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  color: var(--constellation-cyan);
  border: 1px solid rgba(97, 231, 255, 0.28);
  border-radius: 0.8rem;
  background: rgba(7, 13, 36, 0.44);
  font-size: 1.05rem;
}

.constellation-node[data-domain="forensics"] .constellation-node-icon,
.constellation-node[data-domain="data"] .constellation-node-icon {
  color: var(--constellation-violet);
  border-color: rgba(168, 121, 255, 0.32);
}

.constellation-node-label {
  font-size: clamp(0.78rem, 1.3vw, 0.88rem);
  letter-spacing: 0.04em;
  text-transform: none;
}

.constellation-node-status {
  width: 0.28rem;
  height: 0.28rem;
  border-radius: 50%;
  background: var(--constellation-cyan);
  box-shadow: 0 0 7px rgba(97, 231, 255, 0.95);
}

.constellation-detail-panel {
  position: relative;
  min-height: 27rem;
  padding: clamp(1.25rem, 2.4vw, 2rem);
  border: 1px solid rgba(168, 121, 255, 0.4);
  border-radius: 1.35rem;
  background: linear-gradient(150deg, rgba(19, 27, 66, 0.86), rgba(6, 12, 32, 0.92));
  box-shadow: 0 18px 58px rgba(0, 0, 0, 0.3), inset 0 0 36px rgba(168, 121, 255, 0.04);
  overflow: hidden;
}

.constellation-detail-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(130deg, rgba(97, 231, 255, 0.08), transparent 38%, rgba(168, 121, 255, 0.07));
}

.constellation-detail-content {
  position: relative;
  z-index: 1;
}

.constellation-detail-icon {
  display: grid;
  place-items: center;
  width: 3.3rem;
  height: 3.3rem;
  margin: 1rem 0 1.25rem;
  border: 1px solid rgba(97, 231, 255, 0.36);
  border-radius: 1rem;
  color: var(--constellation-cyan);
  background: rgba(97, 231, 255, 0.08);
  font-size: 1.35rem;
}

.constellation-detail-panel h3 {
  margin: 0;
  color: #ffffff;
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  line-height: 1.15;
}

.constellation-detail-description {
  margin: 0.9rem 0 1.15rem;
  color: var(--constellation-muted);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 1.00rem;
  line-height: 1.65;
}

.constellation-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.constellation-detail-tag {
  padding: 0.42rem 0.55rem;
  border: 1px solid rgba(97, 231, 255, 0.18);
  border-radius: 0.55rem;
  color: #d8f9ff;
  background: rgba(97, 231, 255, 0.07);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.82rem;
}

.constellation-proof {
  margin: 1.4rem 0;
  padding: 0.85rem 0;
  border-top: 1px solid rgba(164, 184, 255, 0.14);
  border-bottom: 1px solid rgba(164, 184, 255, 0.14);
}

.constellation-proof-label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--constellation-violet);
}

.constellation-proof-text {
  margin: 0;
  color: #d7def3;
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.90rem;
  line-height: 1.45;
}

.constellation-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
}

.constellation-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.7rem;
  padding: 0.55rem 0.78rem;
  border: 1px solid rgba(97, 231, 255, 0.35);
  border-radius: 0.7rem;
  color: #dffbff;
  background: rgba(97, 231, 255, 0.08);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.constellation-action:hover,
.constellation-action:focus-visible {
  border-color: var(--constellation-cyan);
  background: rgba(97, 231, 255, 0.16);
  transform: translateY(-2px);
}

.constellation-action.primary {
  color: #070b1e;
  border-color: transparent;
  background: linear-gradient(100deg, var(--constellation-cyan), #a4d9ff);
  font-weight: 700;
}

.constellation-action.primary:hover,
.constellation-action.primary:focus-visible {
  background: linear-gradient(100deg, #a4f2ff, #c5b1ff);
}

.constellation-skill-index {
  width: min(1240px, 100%);
  margin: clamp(2.25rem, 5vw, 4rem) auto 0;
  border: 1px solid rgba(164, 184, 255, 0.13);
  border-radius: 1rem;
  background: rgba(8, 15, 37, 0.5);
}

.constellation-skill-index summary {
  padding: 1rem 1.15rem;
  color: #e8efff;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.constellation-skill-index-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem 1.5rem;
  margin: 0;
  padding: 0 1.25rem 1.25rem 2.1rem;
  color: var(--constellation-muted);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.90rem;
  line-height: 1.45;
}

.constellation-skill-index-list strong {
  color: #dfeaff;
  font-weight: 600;
}

@media (max-width: 1120px) {
  .constellation-shell {
    grid-template-columns: 0.75fr minmax(430px, 1.25fr);
    gap: 2rem;
  }

  .constellation-intro {
    max-width: none;
  }

  .constellation-detail-panel {
    grid-column: 1 / -1;
    width: min(620px, 100%);
    min-height: 0;
    margin-inline: auto;
  }
}

@media (max-width: 760px) {
  #technical-skills.constellation-skills-section {
    padding-inline: 1rem;
  }

  .constellation-shell {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 1.5rem;
  }

  .constellation-intro {
    text-align: center;
  }

  .constellation-intro-copy,
  .constellation-stats {
    margin-inline: auto;
  }

  .constellation-stats {
    justify-content: center;
  }

  .constellation-legend {
    max-width: 22rem;
    margin-inline: auto;
    text-align: left;
  }

  .constellation-stage {
    width: min(100%, 520px);
    min-height: min(84vw, 430px);
  }

  .constellation-node {
    width: clamp(4.8rem, 19vw, 6.4rem);
  }

  .constellation-node-icon {
    width: 1.8rem;
    height: 1.8rem;
    border-radius: 0.65rem;
    font-size: 0.90rem;
  }

  .constellation-detail-panel {
    width: 100%;
  }

  .constellation-skill-index-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .constellation-stage {
    min-height: 330px;
  }

  .constellation-stage::before {
    inset: 13%;
  }

  .constellation-node {
    width: 4.45rem;
    padding: 0.35rem;
  }

  .constellation-node-label {
    font-size: 0.78rem;
  }

  .constellation-hub {
    width: 7.2rem;
  }

  .constellation-hub-title {
    font-size: 0.82rem;
  }

  .constellation-detail-panel {
    padding: 1.15rem;
  }

  .constellation-skill-index-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .constellation-node,
  .constellation-connection,
  .constellation-action {
    transition: none !important;
  }

  .constellation-node:hover,
  .constellation-node:focus-visible,
  .constellation-node.is-active {
    transform: translate(-50%, -50%);
  }
}

.constellation-detail-content {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 160ms ease, transform 160ms ease;
}

.constellation-detail-panel.is-updating .constellation-detail-content {
  opacity: 0;
  transform: translateY(6px);
}

@media (prefers-reduced-motion: reduce) {
  .constellation-detail-content {
    transition: none !important;
  }
}

/* -------------------------------------------------------------------------
   Forensic capability deck: focused 3D command surface
   ------------------------------------------------------------------------- */
#technical-skills.constellation-skills-section {
  --constellation-cyan: #54f5df;
  --constellation-violet: #00ff72;
  --constellation-blue: #65c8ff;
  --constellation-panel: rgba(3, 18, 23, .72);
  --constellation-panel-strong: rgba(3, 26, 29, .9);
  --constellation-muted: #9ab8bd;
  padding: clamp(3.5rem, 7vw, 5.5rem) clamp(1rem, 4vw, 3rem) clamp(5rem, 10vw, 8rem);
  background:
    radial-gradient(50% 55% at 54% 42%, rgba(0, 255, 146, .12), transparent 72%),
    radial-gradient(36% 45% at 12% 70%, rgba(0, 222, 255, .08), transparent 70%),
    linear-gradient(145deg, #02090c 0%, #061418 50%, #02070a 100%);
}

#technical-skills.constellation-skills-section::before {
  opacity: .16;
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 55% 48%, black, transparent 76%);
}
#technical-skills.constellation-skills-section::after {
  right: -12rem;
  top: 20%;
  width: 27rem;
  height: 27rem;
  border-color: rgba(0, 255, 173, .12);
  box-shadow: 0 0 0 2rem rgba(0, 255, 173, .025), 0 0 0 5rem rgba(0, 204, 255, .02);
}
.constellation-skills-section .cyber-matrix,
.constellation-skills-section .floating-particles,
.constellation-skills-section .holographic-grid,
.constellation-skills-section .quantum-field { opacity: .04; }

.constellation-shell {
  grid-template-columns: minmax(0, 1fr) minmax(420px, 1.4fr);
  grid-template-rows: auto auto;
  gap: 2rem clamp(2rem, 5vw, 5rem);
  width: min(1240px, 100%);
  perspective: 1500px;
}
.constellation-intro {
  grid-column: 1 / -1;
  width: min(48rem, 100%);
  max-width: none;
  transform: none;
}
.constellation-eyebrow { color: var(--constellation-cyan); }
.constellation-eyebrow::before { background: linear-gradient(90deg, var(--constellation-cyan), transparent); }
.constellation-title {
  margin: .65rem 0 .8rem;
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 60px !important;
  font-weight: 600;
  letter-spacing: .01em;
  line-height: .95;
  text-shadow: 0 0 24px rgba(0, 255, 137, .2);
}
.constellation-title span {
  display: inline;
  color: var(--constellation-violet);
  background: none;
}
.constellation-intro-copy { max-width: 42rem; font-size: .96rem; }
.constellation-stats { margin-top: 1.1rem; }
.constellation-stat { border-color: rgba(0, 255, 146, .25); background: rgba(0, 255, 146, .05); color: #d8fff2; }
.constellation-legend { display: flex; flex-wrap: wrap; gap: .8rem 1.5rem; margin-top: 1.2rem; padding-top: .8rem; }
.constellation-legend-item { font-size: .76rem; }
.constellation-legend-dot.violet { background: var(--constellation-violet); box-shadow: 0 0 14px rgba(0, 255, 114, .8); }

.constellation-stage {
  grid-column: 1;
  grid-row: 2;
  width: min(100%, 600px);
  min-height: 500px;
  aspect-ratio: 1;
  margin: 0 auto;
  border: 1px solid rgba(0, 255, 179, .18);
  border-radius: 1.2rem;
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(0, 255, 174, .07) 50%, transparent 50.2%),
    linear-gradient(0deg, transparent 49.8%, rgba(0, 255, 174, .07) 50%, transparent 50.2%),
    radial-gradient(circle at 50% 50%, rgba(0, 255, 158, .08), transparent 33%),
    rgba(2, 14, 18, .5);
  box-shadow: inset 0 0 3rem rgba(0, 255, 153, .05), 0 1.5rem 3rem rgba(0, 0, 0, .35);
  transform: translate3d(var(--scene-pan-x), var(--scene-pan-y), 0) rotateX(var(--scene-tilt-x)) rotateY(var(--scene-tilt-y));
}
.constellation-stage::before {
  inset: 12%;
  border-color: rgba(0, 255, 183, .16);
  box-shadow: 0 0 4rem rgba(0, 255, 158, .1), inset 0 0 4rem rgba(0, 255, 158, .06);
  transform: translateZ(-50px) rotateX(66deg) rotateZ(-5deg);
}
.constellation-stage::after { border-color: rgba(84, 245, 223, .08); }
.constellation-svg { inset: 2%; width: 96%; height: 96%; }
.constellation-orbit-ring { stroke: rgba(84, 245, 223, .2); stroke-dasharray: 1 9; }
.constellation-connection { stroke: rgba(84, 245, 223, .3); }
.constellation-connection.is-active { stroke: var(--constellation-cyan); filter: drop-shadow(0 0 5px rgba(84, 245, 223, .75)); }

.constellation-hub {
  width: clamp(8.5rem, 22vw, 11rem);
  border: 1px solid rgba(0, 255, 170, .75);
  border-radius: .8rem;
  background: radial-gradient(circle at 30% 20%, rgba(80, 255, 216, .28), rgba(3, 44, 41, .9) 52%, rgba(2, 13, 18, .98));
  box-shadow: 0 0 2.5rem rgba(0, 255, 160, .2), inset 0 0 2rem rgba(0, 255, 160, .12), 0 .8rem 1.5rem rgba(0, 0, 0, .45);
  transform: translate(-50%, -50%) translateZ(70px) rotateX(3deg);
}
.constellation-hub::before { inset: -.75rem; border-color: rgba(0, 255, 170, .3); border-radius: 1rem; }
.constellation-hub::after { inset: -1.35rem; border-color: rgba(84, 245, 223, .14); border-radius: 1.2rem; }
.constellation-hub-title { font-family: 'JetBrains Mono', monospace; font-size: .86rem; letter-spacing: .15em; }

.constellation-node {
  width: clamp(5.8rem, 12vw, 7.4rem);
  border: 1px solid rgba(84, 245, 223, .48);
  border-radius: .8rem;
  background: linear-gradient(145deg, rgba(13, 56, 59, .88), rgba(2, 17, 24, .96));
  box-shadow: 0 .7rem 1.4rem rgba(0, 0, 0, .45), inset 0 0 1.2rem rgba(0, 255, 172, .06);
  transform: translate(-50%, -50%) translateZ(25px) rotateX(2deg);
}
.constellation-node:hover,
.constellation-node:focus-visible,
.constellation-node.is-active {
  transform: translate(-50%, -50%) translateZ(70px) rotateX(2deg) scale(1.1);
  border-color: var(--constellation-cyan);
  background: linear-gradient(145deg, rgba(17, 91, 83, .96), rgba(3, 28, 31, .98));
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, .55), 0 0 2rem rgba(84, 245, 223, .28), inset 0 0 1.5rem rgba(0, 255, 172, .12);
}
.constellation-node[data-domain="forensics"],
.constellation-node[data-domain="data"] { border-color: rgba(0, 255, 114, .58); }
.constellation-node[data-domain="forensics"] .constellation-node-icon,
.constellation-node[data-domain="data"] .constellation-node-icon { color: var(--constellation-violet); border-color: rgba(0, 255, 114, .35); }
.constellation-node-icon { border-radius: .65rem; color: var(--constellation-cyan); background: rgba(0, 255, 171, .06); }
.constellation-node-label { font-family: 'JetBrains Mono', monospace; font-size: .7rem; letter-spacing: .08em; }

.constellation-detail-panel {
  grid-column: 2;
  grid-row: 2;
  min-height: 0;
  align-self: center;
  padding: clamp(1.4rem, 3vw, 2.2rem);
  border: 1px solid rgba(0, 255, 164, .3);
  border-radius: .35rem;
  background: linear-gradient(145deg, rgba(5, 27, 30, .88), rgba(2, 13, 18, .94));
  box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, .42), inset 0 0 2rem rgba(0, 255, 158, .045);
  transform: translate3d(var(--panel-pan-x), var(--panel-pan-y), 35px) rotateX(var(--panel-tilt-x)) rotateY(var(--panel-tilt-y));
}
.constellation-detail-panel::before { background: linear-gradient(130deg, rgba(84, 245, 223, .08), transparent 38%, rgba(0, 255, 114, .05)); }
.constellation-detail-icon { border-radius: .65rem; color: var(--constellation-cyan); background: rgba(0, 255, 158, .07); }
.constellation-detail-panel h3 { font-family: 'Cormorant Garamond', Georgia, serif; font-size: 2rem; letter-spacing: .02em; }
.constellation-detail-description { font-size: .9rem; }
.constellation-detail-tag { border-color: rgba(0, 255, 158, .22); border-radius: .35rem; color: #d8fff3; background: rgba(0, 255, 158, .06); font-family: 'JetBrains Mono', monospace; font-size: .68rem; }
.constellation-proof { border-color: rgba(0, 255, 158, .16); }
.constellation-proof-label { color: var(--constellation-cyan); }
.constellation-action { border-color: rgba(84, 245, 223, .3); border-radius: .35rem; background: rgba(0, 255, 158, .06); font-size: .68rem; }
.constellation-action.primary { color: #021316; background: linear-gradient(100deg, #54f5df, #00ff72); }

@media (max-width: 900px) {
  .constellation-shell { grid-template-columns: 1fr; grid-template-rows: auto auto auto; }
  .constellation-stage { grid-column: 1; grid-row: 2; }
  .constellation-detail-panel { grid-column: 1; grid-row: 3; transform: none; }
}

@media (max-width: 760px) {
  .constellation-title { font-size: 60px !important; }
  .constellation-stage { min-height: min(92vw, 430px); border-radius: .8rem; }
  .constellation-node { width: 4.8rem; }
  .constellation-node-label { font-size: .62rem; }
  .constellation-detail-panel { padding: 1.15rem; }
}

/* 3D scene upgrade: depth, perspective, parallax, and layered surfaces */
#technical-skills.constellation-skills-section {
  --scene-pan-x: 0px;
  --scene-pan-y: 0px;
  --scene-tilt-x: 0deg;
  --scene-tilt-y: 0deg;
  --panel-pan-x: 0px;
  --panel-pan-y: 0px;
  --panel-tilt-x: 0deg;
  --panel-tilt-y: 0deg;
  padding-bottom: clamp(9rem, 15vw, 13rem);
}

.constellation-shell {
  perspective: 1500px;
  perspective-origin: 50% 48%;
  transform-style: preserve-3d;
}

.constellation-intro {
  position: relative;
  transform: translate3d(var(--scene-pan-x), var(--scene-pan-y), 28px) rotateX(var(--scene-tilt-x)) rotateY(var(--scene-tilt-y));
  transform-style: preserve-3d;
  transition: transform 420ms cubic-bezier(.2,.8,.2,1);
}

.constellation-stage {
  perspective: 1100px;
  perspective-origin: 50% 45%;
  transform-style: preserve-3d;
  transform: translate3d(var(--scene-pan-x), var(--scene-pan-y), 0) rotateX(var(--scene-tilt-x)) rotateY(var(--scene-tilt-y));
  transition: transform 420ms cubic-bezier(.2,.8,.2,1);
}

.constellation-stage::before {
  inset: 15% 9%;
  height: 70%;
  transform: translateZ(-70px) rotateX(66deg) rotateZ(-5deg);
  background: radial-gradient(ellipse, rgba(97,231,255,.1), transparent 65%);
  box-shadow: 0 0 90px rgba(97,231,255,.12), inset 0 0 80px rgba(168,121,255,.08);
}

.constellation-stage::after {
  content: "";
  position: absolute;
  inset: 5% 2%;
  z-index: -2;
  pointer-events: none;
  border: 1px solid rgba(97,231,255,.08);
  background:
    linear-gradient(rgba(97,231,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(97,231,255,.08) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: .38;
  mask-image: linear-gradient(to bottom, transparent 0%, black 28%, black 72%, transparent 100%);
  transform: translateZ(-150px) rotateX(65deg) rotateZ(-5deg) scale(1.12);
  transform-origin: center;
}

.constellation-svg {
  transform: translateZ(-38px) scale(.97);
  filter: drop-shadow(0 0 11px rgba(97,231,255,.12));
}

.constellation-orbit-ring {
  stroke: rgba(129,159,255,.24);
  stroke-width: 1.15;
  stroke-dasharray: 1 9;
  animation: constellation-orbit-spin 32s linear infinite;
  transform-origin: 50% 50%;
}

.constellation-orbit-ring:nth-of-type(2) {
  animation-duration: 48s;
  animation-direction: reverse;
  opacity: .55;
}

@keyframes constellation-orbit-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.constellation-connection {
  stroke-linecap: round;
  stroke-dasharray: 4 8;
  animation: constellation-data-flow 4.8s linear infinite;
}

.constellation-connection:nth-of-type(2) { animation-delay: -.7s; }
.constellation-connection:nth-of-type(3) { animation-delay: -1.4s; }
.constellation-connection:nth-of-type(4) { animation-delay: -2.1s; }
.constellation-connection:nth-of-type(5) { animation-delay: -2.8s; }
.constellation-connection:nth-of-type(6) { animation-delay: -3.5s; }

@keyframes constellation-data-flow {
  to { stroke-dashoffset: -48; }
}

.constellation-hub {
  transform: translate(-50%, -50%) translateZ(96px) rotateX(calc(var(--scene-tilt-x) * -0.35)) rotateY(calc(var(--scene-tilt-y) * -0.35));
  transform-style: preserve-3d;
  background:
    radial-gradient(circle at 32% 20%, rgba(255,255,255,.52) 0 2%, transparent 9%),
    radial-gradient(circle at 33% 27%, rgba(97,231,255,.98), rgba(101,90,255,.78) 42%, rgba(52,30,137,.75) 70%, rgba(6,12,37,.98) 100%);
  box-shadow: 0 24px 35px rgba(0,0,0,.38), 0 0 46px rgba(97,231,255,.32), inset 0 0 32px rgba(255,255,255,.2);
}

.constellation-hub::before {
  inset: -.9rem;
  border-color: rgba(97,231,255,.46);
  box-shadow: 0 0 18px rgba(97,231,255,.2);
}

.constellation-hub::after {
  inset: -1.7rem;
  border-color: rgba(168,121,255,.34);
  transform: translateZ(-24px) rotateX(67deg) scaleX(1.28);
}

.constellation-node {
  --node-z: 42px;
  --node-pan-x: 0px;
  --node-pan-y: 0px;
  --node-tilt-x: 0deg;
  --node-tilt-y: 0deg;
  transform: translate3d(calc(-50% + var(--node-pan-x)), calc(-50% + var(--node-pan-y)), var(--node-z)) rotateX(var(--node-tilt-x)) rotateY(var(--node-tilt-y));
  transform-style: preserve-3d;
  border-width: 1px;
  background:
    radial-gradient(circle at 33% 22%, rgba(255,255,255,.28) 0 1%, transparent 8%),
    linear-gradient(145deg, rgba(41,77,153,.88), rgba(7,15,43,.96));
  box-shadow: 0 22px 22px rgba(0,0,0,.3), 0 0 25px rgba(97,231,255,.18), inset 0 0 24px rgba(97,231,255,.11);
  transition: transform 380ms cubic-bezier(.2,.8,.2,1), border-color 220ms ease, box-shadow 220ms ease, background 220ms ease;
}

.constellation-node::before,
.constellation-node::after {
  content: "";
  position: absolute;
  inset: -4px;
  border: 1px solid rgba(97,231,255,.18);
  border-radius: 50%;
  pointer-events: none;
  transform: translateZ(-15px) scale(.94);
  opacity: .7;
}

.constellation-node::after {
  inset: 7px;
  border-color: rgba(255,255,255,.1);
  transform: translateZ(10px);
  opacity: .55;
}

.constellation-node:nth-of-type(3) { --node-z: 110px; }
.constellation-node:nth-of-type(4) { --node-z: 68px; }
.constellation-node:nth-of-type(5) { --node-z: 88px; }
.constellation-node:nth-of-type(6) { --node-z: 56px; }
.constellation-node:nth-of-type(7) { --node-z: 82px; }

.constellation-node:hover,
.constellation-node:focus-visible,
.constellation-node.is-active {
  transform: translate3d(calc(-50% + var(--node-pan-x)), calc(-50% + var(--node-pan-y)), calc(var(--node-z) + 24px)) rotateX(var(--node-tilt-x)) rotateY(var(--node-tilt-y)) scale(1.12);
  box-shadow: 0 28px 30px rgba(0,0,0,.38), 0 0 38px rgba(97,231,255,.42), inset 0 0 28px rgba(97,231,255,.18);
}

.constellation-node-icon {
  transform: translateZ(20px);
  box-shadow: 0 7px 13px rgba(0,0,0,.28), inset 0 0 12px rgba(255,255,255,.1);
}

.constellation-node-label,
.constellation-node-status {
  transform: translateZ(18px);
}

.constellation-node-status {
  animation: constellation-node-pulse 2.2s ease-in-out infinite;
}

@keyframes constellation-node-pulse {
  0%, 100% { opacity: .65; transform: translateZ(18px) scale(.82); }
  50% { opacity: 1; transform: translateZ(18px) scale(1.25); }
}

.constellation-detail-panel {
  transform: translate3d(var(--panel-pan-x), var(--panel-pan-y), 46px) rotateX(var(--panel-tilt-x)) rotateY(var(--panel-tilt-y));
  transform-style: preserve-3d;
  border-color: rgba(168,121,255,.58);
  box-shadow: 0 32px 48px rgba(0,0,0,.4), 0 0 34px rgba(168,121,255,.14), inset 0 0 38px rgba(168,121,255,.08);
  transition: transform 420ms cubic-bezier(.2,.8,.2,1), box-shadow 260ms ease;
}

.constellation-detail-panel::after {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: -2.5rem;
  height: 3rem;
  z-index: -1;
  background: rgba(0,0,0,.44);
  filter: blur(18px);
  transform: translateZ(-28px) rotateX(72deg);
}

.constellation-detail-icon,
.constellation-action,
.constellation-detail-tag {
  box-shadow: 0 7px 16px rgba(0,0,0,.24), inset 0 0 13px rgba(255,255,255,.06);
}

.constellation-action.primary {
  box-shadow: 0 10px 20px rgba(97,231,255,.18), inset 0 1px 0 rgba(255,255,255,.5);
}

@media (max-width: 1120px) {
  #technical-skills.constellation-skills-section {
    padding-bottom: 11rem;
  }

  .constellation-detail-panel {
    transform: translate3d(0, 0, 46px) rotateY(-2deg);
  }
}

@media (max-width: 760px) {
  #technical-skills.constellation-skills-section {
    padding-bottom: 10rem;
  }

  .constellation-stage {
    transform: translateZ(0);
    perspective: 850px;
  }

  .constellation-node {
    --node-z: 24px;
  }

  .constellation-node:nth-of-type(3) { --node-z: 70px; }
  .constellation-node:nth-of-type(4) { --node-z: 48px; }
  .constellation-node:nth-of-type(5) { --node-z: 18px; }
  .constellation-node:nth-of-type(6) { --node-z: 12px; }
  .constellation-node:nth-of-type(7) { --node-z: 54px; }

  .constellation-intro,
  .constellation-detail-panel {
    transform: none;
  }

  .constellation-node:hover,
  .constellation-node:focus-visible,
  .constellation-node.is-active {
    transform: translate3d(-50%, -50%, calc(var(--node-z) + 12px)) scale(1.06);
  }
}

@media (prefers-reduced-motion: reduce) {
  .constellation-orbit-ring,
  .constellation-connection,
  .constellation-node-status {
    animation: none !important;
  }

  .constellation-stage,
  .constellation-intro,
  .constellation-node,
  .constellation-detail-panel {
    transition: none !important;
  }
}

/* Transparent compositing pass: let the portfolio's own project background show through */
#technical-skills.constellation-skills-section {
  background: transparent !important;
  --constellation-panel: rgba(7, 13, 30, 0.34);
  --constellation-panel-strong: rgba(8, 14, 32, 0.52);
}

#technical-skills.constellation-skills-section::before {
  opacity: 0.1;
  background-image:
    linear-gradient(rgba(138, 188, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 188, 255, 0.055) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: radial-gradient(ellipse at 50% 45%, black 0%, transparent 68%);
}

#technical-skills.constellation-skills-section::after {
  opacity: 0.22;
  border-color: rgba(142, 186, 255, 0.12);
  box-shadow: 0 0 0 2rem rgba(97, 231, 255, 0.016), 0 0 0 5rem rgba(168, 121, 255, 0.012);
}

.constellation-skills-section .cyber-matrix,
.constellation-skills-section .floating-particles,
.constellation-skills-section .holographic-grid,
.constellation-skills-section .quantum-field {
  opacity: 0.025;
}

.constellation-stage::after {
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(97, 231, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(97, 231, 255, 0.04) 1px, transparent 1px);
}

.constellation-node {
  background:
    radial-gradient(circle at 32% 18%, rgba(255, 255, 255, 0.16) 0 1%, transparent 10%),
    linear-gradient(145deg, rgba(21, 59, 112, 0.42), rgba(4, 10, 28, 0.24));
  -webkit-backdrop-filter: blur(8px) saturate(125%);
  backdrop-filter: blur(8px) saturate(125%);
  box-shadow: 0 22px 22px rgba(0, 0, 0, 0.26), 0 0 25px rgba(97, 231, 255, 0.15), inset 0 0 24px rgba(97, 231, 255, 0.08);
}

.constellation-node:hover,
.constellation-node:focus-visible,
.constellation-node.is-active {
  background:
    radial-gradient(circle at 32% 18%, rgba(255, 255, 255, 0.22) 0 1%, transparent 10%),
    linear-gradient(145deg, rgba(38, 89, 151, 0.56), rgba(21, 27, 70, 0.34));
}

.constellation-hub {
  background:
    radial-gradient(circle at 32% 20%, rgba(255, 255, 255, 0.44) 0 2%, transparent 9%),
    radial-gradient(circle at 33% 27%, rgba(97, 231, 255, 0.7), rgba(101, 90, 255, 0.5) 42%, rgba(52, 30, 137, 0.42) 70%, rgba(6, 12, 37, 0.36) 100%);
  box-shadow: 0 24px 35px rgba(0, 0, 0, 0.3), 0 0 46px rgba(97, 231, 255, 0.25), inset 0 0 32px rgba(255, 255, 255, 0.16);
}

.constellation-detail-panel {
  background: linear-gradient(145deg, rgba(8, 14, 32, 0.52), rgba(7, 10, 23, 0.3));
  -webkit-backdrop-filter: blur(15px) saturate(125%);
  backdrop-filter: blur(15px) saturate(125%);
  border-color: rgba(168, 121, 255, 0.45);
  box-shadow: 0 32px 48px rgba(0, 0, 0, 0.32), 0 0 34px rgba(168, 121, 255, 0.11), inset 0 0 38px rgba(168, 121, 255, 0.06);
}

.constellation-detail-panel::before {
  background: linear-gradient(130deg, rgba(97, 231, 255, 0.055), transparent 38%, rgba(168, 121, 255, 0.045));
}

.constellation-detail-tag,
.constellation-action,
.constellation-stat {
  background: rgba(7, 17, 37, 0.28);
  -webkit-backdrop-filter: blur(7px) saturate(120%);
  backdrop-filter: blur(7px) saturate(120%);
}

.constellation-action.primary {
  background: linear-gradient(100deg, rgba(97, 231, 255, 0.88), rgba(164, 217, 255, 0.72));
}

@media (prefers-reduced-transparency: reduce) {
  .constellation-node,
  .constellation-detail-panel,
  .constellation-detail-tag,
  .constellation-action,
  .constellation-stat {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}

/* Expandable skill atlas: a richer second layer below the constellation */
.skill-atlas {
  width: min(1240px, 100%);
  margin: clamp(2.2rem, 5vw, 4.5rem) auto 0;
  padding: clamp(1.1rem, 2.2vw, 1.7rem);
  border: 1px solid rgba(97, 231, 255, 0.18);
  border-radius: 1.25rem;
  background: linear-gradient(145deg, rgba(7, 14, 31, 0.24), rgba(7, 10, 22, 0.14));
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  backdrop-filter: blur(12px) saturate(120%);
  box-shadow: 0 22px 44px rgba(0, 0, 0, 0.18), inset 0 0 34px rgba(97, 231, 255, 0.025);
}

.skill-atlas-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid rgba(164, 184, 255, 0.13);
}

.skill-atlas-kicker,
.skill-atlas-count,
.skill-atlas-domain,
.skill-atlas-index,
.skill-atlas-filter,
.skill-atlas-expand {
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.skill-atlas-kicker {
  color: var(--constellation-violet);
  font-size: 0.78rem;
  font-weight: 700;
}

.skill-atlas-title {
  margin: 0.45rem 0 0;
  color: #f6f8ff;
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.1rem, 2.2vw, 1.65rem);
  letter-spacing: -0.025em;
}

.skill-atlas-copy {
  max-width: 46rem;
  margin: 0.55rem 0 0;
  color: var(--constellation-muted);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.90rem;
  line-height: 1.55;
}

.skill-atlas-count {
  flex: 0 0 auto;
  padding: 0.55rem 0.7rem;
  border: 1px solid rgba(97, 231, 255, 0.22);
  border-radius: 999px;
  color: #c6f6ff;
  background: rgba(7, 17, 37, 0.24);
  font-size: 0.78rem;
}

.skill-atlas-controls {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.25fr);
  gap: 0.85rem;
  align-items: center;
  margin: 1rem 0;
}

.skill-atlas-search {
  position: relative;
  display: flex;
  align-items: center;
}

.skill-atlas-search i {
  position: absolute;
  left: 0.85rem;
  color: var(--constellation-cyan);
  pointer-events: none;
}

.skill-atlas-search input {
  width: 100%;
  min-height: 2.65rem;
  padding: 0.6rem 0.8rem 0.6rem 2.25rem;
  border: 1px solid rgba(97, 231, 255, 0.22);
  border-radius: 0.75rem;
  outline: none;
  color: #effaff;
  background: rgba(4, 11, 28, 0.24);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.8rem;
  -webkit-backdrop-filter: blur(7px);
  backdrop-filter: blur(7px);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.skill-atlas-search input::placeholder { color: rgba(196, 211, 241, 0.58); }
.skill-atlas-search input:focus { border-color: var(--constellation-cyan); box-shadow: 0 0 0 3px rgba(97, 231, 255, 0.1); }

.skill-atlas-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.42rem;
}

.skill-atlas-filter {
  min-height: 2.15rem;
  padding: 0.48rem 0.62rem;
  border: 1px solid rgba(164, 184, 255, 0.18);
  border-radius: 0.65rem;
  color: rgba(224, 233, 255, 0.74);
  background: rgba(7, 17, 37, 0.2);
  cursor: pointer;
  font-size: 0.78rem;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.skill-atlas-filter:hover,
.skill-atlas-filter:focus-visible,
.skill-atlas-filter.is-active {
  border-color: var(--constellation-cyan);
  color: #06101d;
  background: rgba(97, 231, 255, 0.88);
  transform: translateY(-1px);
}

.skill-atlas-filter:focus-visible,
.skill-atlas-expand:focus-visible {
  outline: 3px solid rgba(168, 121, 255, 0.82);
  outline-offset: 3px;
}

.skill-atlas-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.skill-atlas-card {
  position: relative;
  min-height: 12.5rem;
  padding: 0.95rem;
  border: 1px solid rgba(97, 231, 255, 0.13);
  border-radius: 0.95rem;
  background: linear-gradient(150deg, rgba(16, 38, 72, 0.28), rgba(4, 10, 26, 0.16));
  -webkit-backdrop-filter: blur(8px) saturate(120%);
  backdrop-filter: blur(8px) saturate(120%);
  overflow: hidden;
  transition: transform 220ms cubic-bezier(.2,.8,.2,1), border-color 180ms ease, box-shadow 180ms ease, opacity 180ms ease;
}

.skill-atlas-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(97, 231, 255, 0.08), transparent 44%, rgba(168, 121, 255, 0.05));
  opacity: 0.75;
}

.skill-atlas-card:hover,
.skill-atlas-card.is-expanded {
  z-index: 2;
  transform: translateY(-5px) perspective(800px) rotateX(1.5deg);
  border-color: rgba(97, 231, 255, 0.42);
  box-shadow: 0 18px 30px rgba(0, 0, 0, 0.23), 0 0 22px rgba(97, 231, 255, 0.1);
}

.skill-atlas-card[hidden] { display: none; }

.skill-atlas-card-top,
.skill-atlas-card-body,
.skill-atlas-card-reveal,
.skill-atlas-card-footer {
  position: relative;
  z-index: 1;
}

.skill-atlas-card-top,
.skill-atlas-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.skill-atlas-index {
  color: rgba(97, 231, 255, 0.55);
  font-size: ${}0.78rem;
}

.skill-atlas-domain {
  color: var(--constellation-violet);
  font-size: 0.78rem;
}

.skill-atlas-card h4 {
  margin: 1rem 0 0.52rem;
  color: #edf5ff;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.00rem;
  line-height: 1.28;
}

.skill-atlas-card p {
  min-height: 2.3rem;
  margin: 0 0 0.8rem;
  color: rgba(206, 218, 242, 0.72);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: ${}0.82rem;
  line-height: 1.45;
}

.skill-atlas-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.34rem;
  max-height: 3.25rem;
  overflow: hidden;
}

.skill-atlas-tag {
  padding: 0.28rem 0.4rem;
  border: 1px solid rgba(97, 231, 255, 0.16);
  border-radius: 0.45rem;
  color: rgba(224, 249, 255, 0.82);
  background: rgba(7, 17, 37, 0.28);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.78rem;
}

.skill-atlas-card-reveal {
  max-height: 0;
  margin-top: 0;
  color: rgba(221, 230, 251, 0.76);
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.78rem;
  line-height: 1.45;
  opacity: 0;
  overflow: hidden;
  transition: max-height 220ms ease, margin-top 220ms ease, opacity 180ms ease;
}

.skill-atlas-card.is-expanded .skill-atlas-card-reveal {
  max-height: 8rem;
  margin-top: 0.7rem;
  opacity: 1;
}

.skill-atlas-expand {
  padding: 0.35rem 0;
  border: 0;
  color: var(--constellation-cyan);
  background: transparent;
  cursor: pointer;
  font-size: 0.78rem;
}

.skill-atlas-empty {
  margin: 1.5rem 0 0;
  padding: 1rem;
  border: 1px dashed rgba(168, 121, 255, 0.3);
  border-radius: 0.75rem;
  color: rgba(223, 231, 252, 0.74);
  text-align: center;
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.8rem;
}

@media (max-width: 1120px) {
  .skill-atlas-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .skill-atlas-header { align-items: flex-start; flex-direction: column; gap: 0.7rem; }
  .skill-atlas-controls { grid-template-columns: 1fr; }
  .skill-atlas-filters { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 0.2rem; }
  .skill-atlas-filter { flex: 0 0 auto; }
  .skill-atlas-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.6rem; }
  .skill-atlas-card { min-height: 11.5rem; padding: 0.78rem; }
  .skill-atlas-card h4 { font-size: 0.90rem; }
}

@media (max-width: 480px) {
  .skill-atlas-grid { grid-template-columns: 1fr; }
}

/* Final emerald/cyan finish after legacy atlas overrides. */
.constellation-hub {
  border-radius: .8rem;
  background: radial-gradient(circle at 30% 20%, rgba(84, 245, 223, .3), rgba(3, 44, 41, .94) 52%, rgba(2, 13, 18, .98));
  box-shadow: 0 0 2.5rem rgba(0, 255, 160, .2), inset 0 0 2rem rgba(0, 255, 160, .12), 0 .8rem 1.5rem rgba(0, 0, 0, .45);
}
.constellation-detail-panel {
  border-color: rgba(0, 255, 164, .3);
  background: linear-gradient(145deg, rgba(5, 27, 30, .88), rgba(2, 13, 18, .94));
  box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, .42), inset 0 0 2rem rgba(0, 255, 158, .045);
}
.constellation-detail-panel::before { background: linear-gradient(130deg, rgba(84, 245, 223, .08), transparent 38%, rgba(0, 255, 114, .05)); }
.constellation-detail-panel h3 { font-family: 'Cormorant Garamond', Georgia, serif; font-size: 2rem; letter-spacing: .02em; }
.constellation-detail-tag,
.constellation-action,
.constellation-stat { border-color: rgba(0, 255, 158, .22); background: rgba(0, 255, 158, .06); }
.constellation-action.primary { color: #021316; background: linear-gradient(100deg, #54f5df, #00ff72); }
.skill-atlas { border-color: rgba(0, 255, 158, .18); background: rgba(3, 16, 20, .38); }
.skill-atlas-kicker, .skill-atlas-domain { color: var(--constellation-cyan); }

@media (max-width: 900px) {
  .constellation-detail-panel { transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .skill-atlas-card,
  .skill-atlas-filter,
  .skill-atlas-card-reveal { transition: none !important; }
}

/* -------------------------------------------------------------------------
   Case-file cards layout: intro / domain grid / evidence dossier
   ------------------------------------------------------------------------- */
#technical-skills.constellation-skills-section {
  --case-cyan: #61e7ff;
  --case-teal: #54f5df;
  --case-violet: #b68cff;
  --case-amber: #ffc45b;
  --case-ink: #061014;
  background:
    radial-gradient(46% 70% at 53% 40%, rgba(64, 112, 140, .12), transparent 72%),
    linear-gradient(135deg, #03070a 0%, #081217 52%, #03070a 100%);
}
.constellation-shell {
  grid-template-columns: minmax(190px, .72fr) minmax(480px, 1.55fr) minmax(340px, 1.12fr);
  grid-template-rows: auto;
  align-items: start;
  gap: 1.4rem;
  perspective: 1600px;
}
.constellation-intro { grid-column: 1; grid-row: 1; max-width: none; align-self: start; }
.constellation-title { font-size: 60px !important; }
.constellation-intro-copy { font-family: 'Cormorant Garamond', Georgia, serif; font-size: 1rem; }
.constellation-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; margin-top: 1.4rem; padding: .8rem; border: 1px solid rgba(97, 231, 255, .25); border-radius: .45rem; background: rgba(4, 18, 23, .65); box-shadow: 0 1.4rem 2.5rem rgba(0, 0, 0, .25), inset 0 0 1.5rem rgba(97, 231, 255, .04); }
.constellation-stat { display: grid; gap: .18rem; padding: .7rem .55rem; border: 0; border-radius: 0; background: transparent; color: #e6fbff; font-size: .66rem; text-transform: uppercase; }
.constellation-stat::first-line { font-size: 1.1rem; color: var(--case-cyan); }
.constellation-legend { display: none; }

.constellation-stage { grid-column: 2; grid-row: 1; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-rows: repeat(2, minmax(0, 1fr)); gap: .9rem; width: 100%; min-height: 0; aspect-ratio: auto; padding: 0; border: 0; background: transparent; box-shadow: none; transform: none; }
.constellation-stage::before,
.constellation-stage::after,
.constellation-svg,
.constellation-hub { display: none; }
.constellation-node { position: relative; inset: auto; left: auto; top: auto; display: flex; align-items: flex-start; justify-content: flex-start; width: auto; min-height: 12.2rem; aspect-ratio: auto; padding: 1rem; transform: translateZ(20px); border: 1px solid rgba(97, 231, 255, .28); border-radius: .5rem; color: #eaf9fb; background: linear-gradient(145deg, rgba(20, 46, 52, .78), rgba(3, 14, 19, .92)); box-shadow: 0 .8rem 1.3rem rgba(0, 0, 0, .35), inset 0 1px 0 rgba(255, 255, 255, .08), inset 0 0 1.5rem rgba(97, 231, 255, .035); text-align: left; }
.constellation-node::before { content: ''; position: absolute; left: .7rem; top: -.3rem; width: 3.2rem; height: .45rem; border: 1px solid rgba(97, 231, 255, .4); border-bottom: 0; border-radius: .3rem .3rem 0 0; background: rgba(29, 67, 73, .95); }
.constellation-node[data-domain="security"]::before { border-color: rgba(84, 245, 223, .45); background: rgba(27, 73, 67, .95); }
.constellation-node[data-domain="forensics"]::before { border-color: rgba(182, 140, 255, .6); background: rgba(79, 51, 107, .95); }
.constellation-node[data-domain="web"]::before { border-color: rgba(101, 168, 255, .5); background: rgba(39, 65, 111, .95); }
.constellation-node[data-domain="data"]::before { border-color: rgba(182, 140, 255, .5); background: rgba(69, 47, 107, .95); }
.constellation-node[data-domain="cloud"]::before { border-color: rgba(255, 196, 91, .55); background: rgba(102, 77, 35, .95); }
.constellation-node:hover, .constellation-node:focus-visible, .constellation-node.is-active { transform: translateY(-5px) translateZ(45px); border-color: var(--case-cyan); background: linear-gradient(145deg, rgba(27, 68, 73, .92), rgba(4, 20, 24, .96)); box-shadow: 0 1.2rem 2rem rgba(0, 0, 0, .46), 0 0 1.5rem rgba(97, 231, 255, .16), inset 0 1px 0 rgba(255, 255, 255, .1); }
.constellation-node[data-domain="forensics"].is-active { border-color: var(--case-violet); background: linear-gradient(145deg, rgba(58, 40, 78, .92), rgba(12, 12, 25, .96)); box-shadow: 0 1.2rem 2rem rgba(0, 0, 0, .46), 0 0 1.8rem rgba(182, 140, 255, .28), inset 0 1px 0 rgba(255, 255, 255, .1); }
.constellation-node-icon { width: 2rem; height: 2rem; flex: 0 0 2rem; border-radius: .5rem; font-size: .9rem; }
.constellation-node-label { position: absolute; left: 1rem; top: 3.55rem; font-family: 'Cormorant Garamond', Georgia, serif; font-size: 1.1rem; letter-spacing: .04em; }
.constellation-node-status { position: absolute; right: 1rem; bottom: 1rem; }
.constellation-domain-number { position: absolute; top: .65rem; right: .8rem; color: rgba(221, 241, 243, .28); font: 1.2rem 'Cormorant Garamond', Georgia, serif; }
.constellation-domain-description { position: absolute; left: 1rem; right: 1rem; top: 5.25rem; color: #9db5b9; font: .72rem/1.45 'Inter', 'Segoe UI', sans-serif; }
.constellation-domain-action { position: absolute; left: 1rem; bottom: .85rem; color: #87cbd1; font: .58rem 'JetBrains Mono', monospace; letter-spacing: .08em; opacity: .7; }
.constellation-domain-action i { margin-left: .35rem; }
.constellation-node:hover .constellation-domain-action, .constellation-node.is-active .constellation-domain-action { color: #fff; opacity: 1; }

/* Hover stays quiet; only click/focus selection changes the folder state. */
.constellation-stage > .constellation-node:hover:not(.is-active) {
  transform: translateZ(20px) !important;
  border-color: rgba(97, 231, 255, .28);
  background: linear-gradient(145deg, rgba(20, 46, 52, .78), rgba(3, 14, 19, .92));
  box-shadow: 0 .8rem 1.3rem rgba(0, 0, 0, .35), inset 0 1px 0 rgba(255, 255, 255, .08), inset 0 0 1.5rem rgba(97, 231, 255, .035);
}
.constellation-stage > .constellation-node:hover:not(.is-active) .constellation-domain-action { color: #87cbd1; opacity: .7; }

.constellation-detail-panel { grid-column: 3; grid-row: 1; min-height: 0; padding: 1.25rem; border-radius: .45rem; border-color: rgba(97, 231, 255, .28); background: linear-gradient(145deg, rgba(19, 29, 38, .82), rgba(5, 13, 18, .94)); transform: translateZ(35px); }
.constellation-dossier-header { display: flex; align-items: baseline; gap: .5rem; border-bottom: 1px solid rgba(255, 255, 255, .12); padding-bottom: .65rem; }
.constellation-dossier-header strong { color: #dbe8ec; font: 2rem 'Cormorant Garamond', Georgia, serif; }
.constellation-confidential { margin-left: auto; color: var(--case-violet); font: .55rem 'JetBrains Mono', monospace; letter-spacing: .12em; }
.constellation-detail-icon { width: 2.4rem; height: 2.4rem; margin: .85rem 0 .7rem; border-radius: .45rem; }
.constellation-detail-panel h3 { margin: 0; font-size: 1.65rem; }
.constellation-detail-description { margin: .5rem 0 .8rem; font-size: .78rem; line-height: 1.45; }
.constellation-evidence-summary p { margin: .35rem 0 .8rem; color: #a9bec2; font: .68rem/1.45 'Inter', 'Segoe UI', sans-serif; }
.constellation-tags-section { display: block; width: 100%; }
.constellation-detail-tags { gap: .35rem; margin-top: .45rem; }
.constellation-detail-tag { padding: .3rem .42rem; font-size: .6rem; }
.constellation-proof { margin: .9rem 0 .7rem; padding: .7rem 0; }
.constellation-proof-text { font-size: .65rem; }
.constellation-proof-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: .35rem; margin-top: .55rem; }
.constellation-proof-card { display: grid; gap: .35rem; min-height: 3.3rem; align-content: center; padding: .4rem; border: 1px solid rgba(97, 231, 255, .3); border-radius: .3rem; color: #cceef1; background: rgba(8, 25, 31, .7); font: .52rem/1.2 'Inter', 'Segoe UI', sans-serif; text-decoration: none; }
.constellation-proof-card i { color: var(--case-cyan); font-size: .8rem; }
.constellation-proof-card:hover { border-color: var(--case-violet); transform: translateY(-2px); }
.constellation-actions { gap: .4rem; }
.constellation-action { min-height: 2rem; padding: .4rem .6rem; font-size: .58rem; }

@media (max-width: 1100px) {
  .constellation-shell { grid-template-columns: minmax(170px, .7fr) minmax(400px, 1.4fr); }
  .constellation-detail-panel { grid-column: 1 / -1; grid-row: 2; }
  .constellation-stage { grid-column: 2; }
}
@media (max-width: 760px) {
  .constellation-shell { display: flex; flex-direction: column; gap: 1.5rem; }
  .constellation-intro, .constellation-stage, .constellation-detail-panel { width: 100%; }
  .constellation-stage { display: grid; min-height: 0; }
  .constellation-node { min-height: 11rem; }
  .constellation-tags-section { display: block; width: 100%; padding: 0; border: 0; }
  .constellation-tags-section { margin-top: 1rem; }
  .constellation-proof-cards { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 901px) and (max-width: 1200px) {
  .constellation-shell { grid-template-columns: minmax(170px, .72fr) minmax(0, 1.6fr); }
  .constellation-intro { grid-column: 1; grid-row: 1; }
  .constellation-stage { grid-column: 2; grid-row: 1; }
  .constellation-detail-panel { grid-column: 1 / -1; grid-row: 2; width: 100%; transform: none; }
}

/* Hard final geometry override for the case-file card grid. */
.constellation-stage {
  display: grid !important;
  grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
  grid-template-rows: repeat(2, minmax(0, 1fr)) !important;
  gap: .9rem !important;
  min-height: 0 !important;
  height: auto !important;
  aspect-ratio: auto !important;
}
.constellation-stage > .constellation-node {
  position: relative !important;
  inset: auto !important;
  left: auto !important;
  top: auto !important;
  width: auto !important;
  height: auto !important;
  min-height: 12.2rem !important;
  width: 100% !important;
  min-width: 0 !important;
  flex: 0 0 auto !important;
  justify-self: stretch !important;
  align-self: stretch !important;
  aspect-ratio: auto !important;
  margin: 0 !important;
  transform: translateZ(20px) !important;
}
.constellation-stage > .constellation-node:hover,
.constellation-stage > .constellation-node:focus-visible,
.constellation-stage > .constellation-node.is-active { transform: translateY(-5px) translateZ(45px) !important; }

/* Clicked-folder preview: keep the original cards visible and open the dossier as a layered folder. */
#technical-skills.is-folder-preview-open .constellation-stage > .constellation-node:not(.is-active) {
  opacity: .42;
  filter: saturate(.7) brightness(.72);
}
#technical-skills.is-folder-preview-open .constellation-stage > .constellation-node.is-active {
  z-index: 12;
  border-color: var(--case-violet);
  box-shadow: 0 0 2rem rgba(182, 140, 255, .34), inset 0 0 1.5rem rgba(182, 140, 255, .1);
}
#technical-skills.is-folder-preview-open .constellation-detail-panel {
  z-index: 20;
  min-height: 0;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  border-color: rgba(0, 255, 145, .8);
  background: linear-gradient(145deg, rgba(8, 55, 48, .97), rgba(5, 27, 31, .98));
  box-shadow: 0 2rem 4rem rgba(0, 0, 0, .6), 0 0 2rem rgba(0, 255, 145, .24), inset 0 0 2rem rgba(0, 255, 145, .08);
  transform: translateZ(70px) translateY(-.35rem);
  animation: folder-preview-open .28s cubic-bezier(.2, .8, .2, 1) both;
}
#technical-skills.is-folder-preview-open .constellation-detail-panel::-webkit-scrollbar { width: .45rem; }
#technical-skills.is-folder-preview-open .constellation-detail-panel::-webkit-scrollbar-track { background: rgba(0, 20, 22, .5); border-radius: 1rem; }
#technical-skills.is-folder-preview-open .constellation-detail-panel::-webkit-scrollbar-thumb { background: rgba(84, 245, 223, .55); border-radius: 1rem; box-shadow: 0 0 .5rem rgba(0, 255, 145, .2); }
#technical-skills.is-folder-preview-open .constellation-dossier-header {
  position: sticky;
  top: -1.25rem;
  z-index: 4;
  margin: -1.25rem -1.25rem .8rem;
  padding: 1.25rem 1.25rem .65rem;
  background: linear-gradient(180deg, rgba(5, 39, 35, .98), rgba(5, 39, 35, .86) 78%, transparent);
  backdrop-filter: blur(10px);
}
#technical-skills.is-folder-preview-open .constellation-detail-panel::after,
#technical-skills.is-folder-preview-open .constellation-detail-panel::before {
  content: '';
  position: absolute;
  pointer-events: none;
  border: 1px solid rgba(160, 255, 225, .28);
  border-radius: .45rem;
  background: rgba(8, 36, 37, .42);
  box-shadow: 0 0 1.2rem rgba(0, 255, 145, .08);
}
#technical-skills.is-folder-preview-open .constellation-detail-panel::before { inset: -.8rem .7rem .8rem -1rem; z-index: -2; transform: translateZ(-24px); }
#technical-skills.is-folder-preview-open .constellation-detail-panel::after { inset: -1.45rem .1rem 1.45rem -1.5rem; z-index: -3; transform: translateZ(-42px); opacity: .72; }
.constellation-preview-close { display: grid; width: 2rem; height: 2rem; margin-left: auto; place-items: center; border: 1px solid rgba(97, 231, 255, .35); border-radius: 50%; color: #c8e8e9; background: rgba(0, 20, 25, .65); cursor: pointer; }
.constellation-preview-close:hover, .constellation-preview-close:focus-visible { border-color: var(--case-cyan); color: #fff; box-shadow: 0 0 .8rem rgba(97, 231, 255, .3); }
@keyframes folder-preview-open { from { opacity: .65; transform: translateZ(25px) translateY(.5rem) scale(.97); } to { opacity: 1; transform: translateZ(70px) translateY(-.35rem) scale(1); } }
@media (prefers-reduced-motion: reduce) { #technical-skills.is-folder-preview-open .constellation-detail-panel { animation: none; } }

@media (max-width: 760px) {
  .constellation-stage { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; grid-template-rows: repeat(3, minmax(0, 1fr)) !important; }
  .constellation-stage > .constellation-node { min-height: 11rem !important; }
  #technical-skills.is-folder-preview-open .constellation-detail-panel { max-height: calc(100vh - 1rem); }
}

/* Colorful skill-atlas domain system */
.skill-atlas-card {
  --atlas-accent: #61e7ff;
  --atlas-soft: rgba(97, 231, 255, 0.12);
  --atlas-border: rgba(97, 231, 255, 0.28);
  border-color: var(--atlas-border);
  background:
    radial-gradient(circle at 92% 10%, var(--atlas-soft), transparent 9rem),
    linear-gradient(150deg, rgba(16, 38, 72, 0.24), rgba(4, 10, 26, 0.14));
}

.skill-atlas-card[data-domain="build"] {
  --atlas-accent: #00ff8a;
  --atlas-soft: rgba(0, 255, 138, 0.13);
  --atlas-border: rgba(0, 255, 138, 0.3);
}

.skill-atlas-card[data-domain="security"] {
  --atlas-accent: #ff527d;
  --atlas-soft: rgba(255, 82, 125, 0.14);
  --atlas-border: rgba(255, 82, 125, 0.3);
}

.skill-atlas-card[data-domain="forensics"] {
  --atlas-accent: #b481ff;
  --atlas-soft: rgba(180, 129, 255, 0.16);
  --atlas-border: rgba(180, 129, 255, 0.32);
}

.skill-atlas-card[data-domain="data"] {
  --atlas-accent: #61e7ff;
  --atlas-soft: rgba(97, 231, 255, 0.15);
  --atlas-border: rgba(97, 231, 255, 0.32);
}

.skill-atlas-card[data-domain="operations"] {
  --atlas-accent: #ffb454;
  --atlas-soft: rgba(255, 180, 84, 0.15);
  --atlas-border: rgba(255, 180, 84, 0.32);
}

.skill-atlas-card::before {
  background: linear-gradient(135deg, var(--atlas-soft), transparent 46%, rgba(255, 255, 255, 0.025));
}

.skill-atlas-card:hover,
.skill-atlas-card.is-expanded {
  border-color: var(--atlas-accent);
  box-shadow: 0 18px 30px rgba(0, 0, 0, 0.23), 0 0 24px var(--atlas-soft), inset 0 0 18px var(--atlas-soft);
}

.skill-atlas-index,
.skill-atlas-domain,
.skill-atlas-expand {
  color: var(--atlas-accent);
}

.skill-atlas-domain {
  text-shadow: 0 0 11px var(--atlas-soft);
}

.skill-atlas-tag {
  border-color: var(--atlas-border);
  color: color-mix(in srgb, var(--atlas-accent) 72%, white 28%);
  background: var(--atlas-soft);
}

.skill-atlas-card-footer {
  border-top: 1px solid color-mix(in srgb, var(--atlas-accent) 28%, transparent);
  margin-top: 0.65rem;
  padding-top: 0.55rem;
}

.skill-atlas-filter[data-filter="build"]:hover,
.skill-atlas-filter[data-filter="build"].is-active { border-color: #00ff8a; background: rgba(0, 255, 138, 0.88); }
.skill-atlas-filter[data-filter="security"]:hover,
.skill-atlas-filter[data-filter="security"].is-active { border-color: #ff527d; background: rgba(255, 82, 125, 0.88); }
.skill-atlas-filter[data-filter="forensics"]:hover,
.skill-atlas-filter[data-filter="forensics"].is-active { border-color: #b481ff; background: rgba(180, 129, 255, 0.88); }
.skill-atlas-filter[data-filter="data"]:hover,
.skill-atlas-filter[data-filter="data"].is-active { border-color: #61e7ff; background: rgba(97, 231, 255, 0.88); }
.skill-atlas-filter[data-filter="operations"]:hover,
.skill-atlas-filter[data-filter="operations"].is-active { border-color: #ffb454; background: rgba(255, 180, 84, 0.88); }

.skill-atlas-filter[data-filter="security"],
.skill-atlas-filter[data-filter="forensics"],
.skill-atlas-filter[data-filter="operations"] {
  color: rgba(238, 232, 255, 0.82);
}

@media (max-width: 760px) {
  .skill-atlas-card-footer { margin-top: 0.5rem; }
}

/* Atlas-level accordion */
.skill-atlas-header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.skill-atlas-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 2.35rem;
  padding: 0.5rem 0.72rem;
  border: 1px solid rgba(97, 231, 255, 0.3);
  border-radius: 0.7rem;
  color: #06101d;
  background: linear-gradient(100deg, rgba(97, 231, 255, 0.92), rgba(164, 217, 255, 0.82));
  box-shadow: 0 7px 18px rgba(97, 231, 255, 0.12);
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: transform 160ms ease, box-shadow 160ms ease, filter 160ms ease;
}

.skill-atlas-toggle:hover,
.skill-atlas-toggle:focus-visible {
  transform: translateY(-2px);
  filter: saturate(1.15);
  box-shadow: 0 10px 24px rgba(97, 231, 255, 0.2), 0 0 18px rgba(168, 121, 255, 0.12);
}

.skill-atlas-toggle:focus-visible {
  outline: 3px solid rgba(168, 121, 255, 0.82);
  outline-offset: 3px;
}

.skill-atlas-toggle i {
  font-size: 0.78rem;
  transition: transform 220ms ease;
}

.skill-atlas.is-open .skill-atlas-toggle i {
  transform: rotate(180deg);
}

.skill-atlas-content[hidden] {
  display: none;
}

.skill-atlas.is-open .skill-atlas-content {
  animation: atlasContentReveal 260ms cubic-bezier(.2,.8,.2,1) both;
}

@keyframes atlasContentReveal {
  from { opacity: 0; transform: translateY(-0.6rem); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 760px) {
  .skill-atlas-header-actions { width: 100%; justify-content: flex-start; }
  .skill-atlas-toggle { flex: 1 1 8.4rem; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  .skill-atlas-toggle,
  .skill-atlas-toggle i,
  .skill-atlas.is-open .skill-atlas-content { animation: none !important; transition: none !important; }
}


/* Final composition pass: balanced editorial intro, matrix centerpiece, and detail rail. */
#technical-skills.constellation-skills-section {
  padding-top: clamp(3.25rem, 5.5vw, 4.25rem);
  padding-bottom: clamp(3.5rem, 6vw, 4.5rem);
}

.constellation-shell {
  grid-template-columns: minmax(220px, 0.78fr) minmax(480px, 1.65fr) minmax(300px, 0.95fr);
  gap: clamp(1.5rem, 3vw, 3.25rem);
  align-items: center;
  width: min(1320px, 100%);
}

.constellation-intro {
  max-width: 21rem;
}

.constellation-title {
  margin-top: 0.65rem;
  font-size: clamp(3rem, 5vw, 5.1rem);
  line-height: 0.9;
  letter-spacing: -0.035em;
}

.constellation-intro-copy {
  max-width: 19rem;
  font-size: 1.02rem;
  line-height: 1.55;
}

.constellation-stats {
  margin-top: 1.25rem;
}

.constellation-legend {
  gap: 0.55rem;
  margin-top: 1.5rem;
  padding-top: 0.95rem;
}

.constellation-stage {
  width: min(100%, 600px);
  min-height: clamp(440px, 42vw, 580px);
}

.constellation-detail-panel {
  align-self: center;
  min-height: 0;
  max-height: 36rem;
  padding: clamp(1.3rem, 2.2vw, 1.8rem);
  display: flex;
  align-items: center;
}

.constellation-detail-content {
  width: 100%;
}

.constellation-detail-icon {
  margin: 0.85rem 0 1rem;
}

.constellation-detail-description {
  max-width: 25rem;
  margin-top: 0.75rem;
}

.constellation-proof {
  margin: 1.15rem 0;
}

.constellation-actions {
  gap: 0.45rem;
}

.constellation-action {
  min-height: 2.5rem;
  padding-inline: 0.7rem;
}

.skill-atlas {
  width: min(1320px, 100%);
  margin-top: clamp(2rem, 4vw, 3.25rem);
  padding: clamp(1rem, 1.8vw, 1.35rem);
  border-radius: 1.1rem;
}

.skill-atlas-header {
  padding-bottom: 0.9rem;
}

.skill-atlas-copy {
  max-width: 42rem;
}

@media (max-width: 1240px) {
  .constellation-shell {
    grid-template-columns: minmax(200px, 0.72fr) minmax(430px, 1.48fr) minmax(280px, 0.92fr);
    gap: 1.75rem;
  }

  .constellation-stage {
    min-height: 480px;
  }
}

@media (max-width: 1120px) {
  .constellation-shell {
    grid-template-columns: minmax(220px, 0.8fr) minmax(450px, 1.45fr);
    gap: 2rem;
  }

  .constellation-stage {
    width: min(100%, 580px);
    min-height: min(54vw, 520px);
  }

  .constellation-detail-panel {
    grid-column: 1 / -1;
    width: min(680px, 100%);
    margin-inline: auto;
  }
}

@media (max-width: 760px) {
  #technical-skills.constellation-skills-section {
    padding-top: 4rem;
    padding-bottom: 5.5rem;
  }

  .constellation-shell {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .constellation-intro {
    max-width: 30rem;
  }

  .constellation-title {
    font-size: clamp(3rem, 15vw, 4.6rem);
  }

  .constellation-intro-copy {
    max-width: 27rem;
    margin-inline: auto;
  }

  .constellation-legend {
    margin-top: 1.15rem;
  }

  .constellation-stage {
    width: min(100%, 540px);
    min-height: min(88vw, 470px);
  }

  .constellation-detail-panel {
    max-height: none;
    padding: 1.25rem;
  }

  .skill-atlas {
    margin-top: 2rem;
  }
}

@media (max-width: 480px) {
  .constellation-stage {
    min-height: 340px;
  }

  .constellation-detail-panel {
    border-radius: 1rem;
  }
}