:root {
  --portfolio-space: #03040b;
  --portfolio-ink: #edf5ff;
  --portfolio-header-opacity: 0.02;
  --portfolio-footer-opacity: 0.27;
  --portfolio-glass-blur: 6px;
  --portfolio-scene-height: 1150px;
  --portfolio-bottom-space: 300px;
}

body {
  background: var(--portfolio-space);
  color: var(--portfolio-ink);
}

.header-section {
  display: none;
}

.portfolio-page {
  position: relative;
  min-height: calc(
    var(--portfolio-scene-height) + var(--portfolio-bottom-space)
  );
  flex: 1 0 auto;
}

.portfolio-nebula {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 68% 42%, rgba(32, 70, 129, 0.35), transparent 34%),
    radial-gradient(circle at 36% 58%, rgba(101, 33, 82, 0.25), transparent 38%),
    var(--portfolio-space);
}

.portfolio-nebula > canvas,
.portfolio-nebula > svg {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.portfolio-star-link {
  cursor: pointer;
  outline: none;
}

.portfolio-star-link:focus-visible .portfolio-star-link__surface {
  stroke: #fff;
  stroke-width: 2;
}

.portfolio-star-link.is-selected .portfolio-star-link__surface,
.portfolio-star-link.is-selected .portfolio-star-link__connector {
  opacity: 0;
  transition: opacity 320ms ease;
}

.portfolio-star-link__connector {
  stroke: rgba(184, 218, 255, 0.5);
  stroke-width: 1;
}

.portfolio-star-link__surface {
  fill: rgba(3, 4, 11, 0.62);
  stroke: rgba(184, 218, 255, 0.28);
  stroke-width: 1;
  transition: fill 160ms ease, stroke 160ms ease;
}

.portfolio-star-link__text {
  fill: rgba(237, 245, 255, 0.88);
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  pointer-events: none;
}

.portfolio-star-link:hover .portfolio-star-link__surface,
.portfolio-star-link:focus .portfolio-star-link__surface {
  fill: rgba(20, 37, 74, 0.9);
  stroke: rgba(184, 218, 255, 0.78);
}

.portfolio-star-link:hover .portfolio-star-link__text,
.portfolio-star-link:focus .portfolio-star-link__text {
  fill: #fff;
}

.nebula-controls {
  position: fixed;
  z-index: 2000;
  top: 110px;
  right: 20px;
  width: min(360px, calc(100vw - 40px));
  color: rgba(237, 245, 255, 0.9);
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12px;
}

.nebula-controls[hidden] {
  display: none;
}

/* ---------------------------- Solar system ---------------------------- */

.portfolio-nebula > canvas {
  transform-origin: 50% 30%;
  will-change: transform;
}

.scene-glow {
  fill: rgba(255, 244, 232, 0.95);
  pointer-events: none;
}

.scene-trail {
  pointer-events: none;
}

.scene-system {
  pointer-events: auto;
}

.solar-system__title {
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.solar-system__description {
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-weight: 400;
  opacity: 0.75;
}

.solar-system:focus {
  outline: none;
}

.solar-planet {
  cursor: pointer;
  outline: none;
}

.solar-planet__body {
  transition: opacity 160ms ease;
}

.solar-planet__label {
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-weight: 600;
  letter-spacing: 0.03em;
  opacity: 0.72;
  pointer-events: none;
  transition: opacity 160ms ease;
}

.solar-planet.is-active .solar-planet__label {
  opacity: 1;
}

.solar-planet.is-active .solar-planet__body {
  stroke: #fff;
  stroke-width: 2;
}

.solar-planet:focus-visible .solar-planet__body {
  stroke: #fff;
  stroke-width: 3;
}

/* The active planet is lifted by receding its neighbours rather than by
   reordering the DOM, which would blur it and scramble the tab order. */
.solar-system.has-active .solar-planet:not(.is-active) .solar-planet__label {
  opacity: 0;
}

.solar-system.has-active .solar-planet:not(.is-active) .solar-planet__body,
.solar-system.has-active .solar-planet:not(.is-active) .solar-planet__ring,
.solar-system.has-active .solar-planet:not(.is-active) .solar-planet__moon {
  opacity: 0.35;
}

.solar-planet__orbit {
  transition: stroke-opacity 200ms ease;
}

.solar-planet__orbit.is-active {
  stroke-opacity: 0.55;
}

/* Labels are hidden on narrow screens until their planet is active. */
.solar-system.is-compact .solar-planet__label {
  opacity: 0;
}

.solar-system.is-compact .solar-planet.is-active .solar-planet__label {
  opacity: 1;
}

.portfolio-return {
  position: fixed;
  z-index: 2100;
  bottom: 24px;
  left: 24px;
  min-height: 44px;
  padding: 11px 18px;
  border: 1px solid rgba(184, 218, 255, 0.4);
  border-radius: 8px;
  background: rgba(3, 4, 11, 0.86);
  color: rgba(237, 245, 255, 0.92);
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.portfolio-return[hidden] {
  display: none;
}

.portfolio-return:hover,
.portfolio-return:focus {
  border-color: rgba(184, 218, 255, 0.85);
  background: rgba(20, 37, 74, 0.94);
  color: #fff;
  outline: none;
}

.portfolio-return__icon {
  margin-right: 8px;
}

.portfolio-project-card {
  position: fixed;
  z-index: 2050;
  top: 0;
  left: 0;
  width: min(300px, calc(100vw - 32px));
  padding: 14px 16px;
  border: 1px solid rgba(184, 218, 255, 0.28);
  border-radius: 10px;
  background: rgba(3, 4, 11, 0.9);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  color: rgba(237, 245, 255, 0.86);
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 13px;
  line-height: 1.45;
  pointer-events: none;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.portfolio-project-card[hidden] {
  display: none;
}

.portfolio-project-card p {
  margin: 0;
}

.portfolio-project-card__title {
  margin-bottom: 6px !important;
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.portfolio-project-card__hint {
  margin-top: 10px !important;
  color: rgba(158, 201, 255, 0.85);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.portfolio-project-dialog {
  width: min(520px, calc(100vw - 32px));
  max-height: 80vh;
  padding: 26px 28px 28px;
  border: 1px solid rgba(184, 218, 255, 0.28);
  border-radius: 14px;
  background: rgba(6, 9, 22, 0.97);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6);
  color: rgba(237, 245, 255, 0.88);
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  overflow-y: auto;
}

.portfolio-project-dialog::backdrop {
  background: rgba(2, 3, 8, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.portfolio-project-dialog__dismiss {
  float: right;
  margin: -10px -10px 0 0;
}

.portfolio-project-dialog__close {
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: rgba(237, 245, 255, 0.72);
  font-size: 24px;
  line-height: 1;
}

.portfolio-project-dialog__close:hover,
.portfolio-project-dialog__close:focus {
  background: rgba(20, 37, 74, 0.9);
  color: #fff;
  outline: none;
}

.portfolio-project-dialog__category {
  margin: 0 0 6px;
  color: rgba(158, 201, 255, 0.85);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.portfolio-project-dialog__title {
  margin: 0 0 14px;
  color: #fff;
  font-size: 24px;
  line-height: 1.25;
}

.portfolio-project-dialog__summary {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.6;
}

.portfolio-project-dialog__satellites {
  margin: 0 0 20px;
  color: rgba(237, 245, 255, 0.62);
  font-size: 13px;
}

.portfolio-project-dialog__satellites[hidden] {
  display: none;
}

.portfolio-project-dialog__action {
  display: inline-block;
  min-height: 44px;
  padding: 12px 20px;
  border: 1px solid rgba(184, 218, 255, 0.45);
  border-radius: 8px;
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.portfolio-project-dialog__action:hover,
.portfolio-project-dialog__action:focus {
  border-color: rgba(184, 218, 255, 0.9);
  background: rgba(20, 37, 74, 0.92);
  color: #fff;
  text-decoration: none;
  outline: none;
}

.portfolio-project-dialog__action[hidden] {
  display: none;
}

.nebula-controls__toggle,
.nebula-controls__actions button {
  border: 1px solid rgba(184, 218, 255, 0.24);
  border-radius: 6px;
  background: rgba(3, 4, 11, 0.86);
  color: inherit;
  letter-spacing: 0.04em;
}

.nebula-controls__toggle {
  width: 100%;
  padding: 10px 14px;
  cursor: grab;
  text-align: left;
  touch-action: none;
  text-transform: uppercase;
  user-select: none;
  -webkit-user-select: none;
}

.nebula-controls__toggle.is-dragging {
  cursor: grabbing;
}

.nebula-controls__grip {
  display: inline-block;
  margin-right: 8px;
  color: rgba(184, 218, 255, 0.52);
  font-weight: 700;
  letter-spacing: -0.08em;
  transform: rotate(90deg);
}

.nebula-controls__toggle::after {
  content: "\2212";
  float: right;
}

.nebula-controls__toggle[aria-expanded="false"]::after {
  content: "+";
}

.nebula-controls__panel {
  max-height: calc(100vh - 180px);
  margin-top: 8px;
  overflow-y: auto;
  border: 1px solid rgba(184, 218, 255, 0.18);
  border-radius: 8px;
  background: rgba(3, 4, 11, 0.88);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

body.portfolio-is-scrolling .navbar-custom,
body.portfolio-is-scrolling .nebula-controls__panel {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.nebula-controls__panel[hidden] {
  display: none;
}

.nebula-control-group {
  margin: 0;
  border: 0;
  border-bottom: 1px solid rgba(184, 218, 255, 0.12);
  padding: 12px 14px;
}

.nebula-control-group legend {
  margin: 0 0 8px;
  border: 0;
  padding: 0;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nebula-control {
  display: grid;
  grid-template-columns: minmax(105px, 1fr) 1.4fr 48px;
  gap: 8px;
  align-items: center;
  margin: 7px 0;
}

.nebula-control label {
  margin: 0;
  font-weight: 400;
}

.nebula-control input[type="range"] {
  width: 100%;
  accent-color: #8bbcff;
}

.nebula-control input[type="color"] {
  width: 100%;
  height: 24px;
  border: 0;
  padding: 0;
  background: transparent;
}

.nebula-control output {
  color: rgba(237, 245, 255, 0.68);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.nebula-controls__actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 12px 14px;
}

.nebula-controls__actions button {
  padding: 8px;
}

.nebula-controls button:hover,
.nebula-controls button:focus {
  border-color: rgba(184, 218, 255, 0.55);
  background: rgba(20, 37, 74, 0.92);
  outline: none;
}

.navbar-custom {
  background: rgba(3, 4, 11, var(--portfolio-header-opacity));
  border-bottom-color: rgba(184, 218, 255, 0.14);
  backdrop-filter: blur(var(--portfolio-glass-blur));
  -webkit-backdrop-filter: blur(var(--portfolio-glass-blur));
}

.navbar-custom .navbar-brand,
.navbar-custom .nav li a {
  color: rgba(237, 245, 255, 0.82);
}

.navbar-custom .navbar-brand:hover,
.navbar-custom .navbar-brand:focus,
.navbar-custom .nav li a:hover,
.navbar-custom .nav li a:focus {
  color: #fff;
}

.navbar-default .navbar-toggle {
  border-color: rgba(237, 245, 255, 0.28);
}

.navbar-default .navbar-toggle .icon-bar {
  background-color: rgba(237, 245, 255, 0.82);
}

footer {
  position: relative;
  z-index: 1;
  background: rgba(3, 4, 11, var(--portfolio-footer-opacity));
  border-top-color: rgba(184, 218, 255, 0.14);
  backdrop-filter: blur(var(--portfolio-glass-blur));
  -webkit-backdrop-filter: blur(var(--portfolio-glass-blur));
}

footer,
footer a,
footer .credits {
  color: rgba(237, 245, 255, 0.68);
}

@media (prefers-reduced-motion: reduce) {
  #portfolio-nebula * {
    animation: none;
  }
}

/* The scene is anchored to the top of the page, so page scrolling is locked
   while a solar system is open to keep the sun and planets in view. */
body.portfolio-system-open {
  overflow: hidden;
}

@media only screen and (max-width: 767px) {
  .nebula-controls {
    top: 64px;
    right: 10px;
    width: min(340px, calc(100vw - 20px));
  }

  .nebula-controls__panel {
    max-height: calc(100vh - 122px);
  }

  /* Narrow screens use the bottom sheet instead of hover-positioned cards. */
  .portfolio-project-card {
    display: none;
  }

  .portfolio-return {
    right: 16px;
    bottom: 16px;
    left: 16px;
    text-align: center;
  }

  .portfolio-project-dialog {
    width: 100%;
    max-width: none;
    max-height: 72vh;
    margin: auto auto 0;
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
    border-radius: 16px 16px 0 0;
    padding: 20px 20px 28px;
  }

  .portfolio-project-dialog__title {
    font-size: 20px;
  }

  .portfolio-project-dialog__action {
    display: block;
    text-align: center;
  }
}