/* Migration / visual prototype 01
   A self-contained color and interaction system inside the Falcopolis ecosystem. */

.page-migration{
  --migration-night: #07171c;
  --migration-night-soft: #10252a;
  --migration-land: #2b3d3b;
  --migration-border: rgba(218, 232, 222, .18);
  --migration-text: #edf2eb;
  --migration-muted: rgba(237, 242, 235, .62);
  --migration-panel: #c8d54f;
  --migration-panel-ink: #132016;
  --migration-marina: #ffd166;
  --migration-ringlo: #ff7866;
  --migration-vaiana: #5ad2cc;
  --migration-csaszar: #bc93ff;
  --migration-header-h: 62px;

  margin: 0;
  background: var(--migration-night);
  color: var(--migration-text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

.page-migration .sr-only{
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.migration-skip-link{
  position: fixed;
  top: 10px;
  left: -9999px;
  z-index: 500;
  padding: 10px 14px;
  background: var(--migration-text);
  color: var(--migration-night);
}

.migration-skip-link:focus{ left: 10px; }

/* Page-specific treatment of the shared header partial. */
.page-migration .site-header{
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--migration-header-h);
  color: var(--migration-text);
  background: linear-gradient(90deg, var(--migration-panel) 0 320px, rgba(7, 23, 28, .88) 320px 100%);
  border-bottom: 1px solid var(--migration-border);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.page-migration .site-header__inner{
  height: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 10px 16px;
}

.page-migration .site-header__brand{
  display: inline-flex;
  align-items: center;
  color: var(--migration-panel-ink);
  text-decoration: none;
}

.page-migration .site-header__brandmark{
  display: block;
  width: 154px;
  height: 34px;
  background: currentColor;
  -webkit-mask: url("/assets/shared/icons/falcopolis-H-600.svg") center / contain no-repeat;
  mask: url("/assets/shared/icons/falcopolis-H-600.svg") center / contain no-repeat;
}

.page-migration .site-header__brandtext{ display: none; }

.page-migration .site-header__nav{
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.page-migration .site-header__link,
.page-migration .site-header__back{
  color: var(--migration-muted);
  text-decoration: none;
  font-size: 13px;
  line-height: 1;
  border-radius: 999px;
}

.page-migration .site-header__link{ padding: 8px 10px; }

.page-migration .site-header__link:hover,
.page-migration .site-header__link.is-current,
.page-migration .site-header__link[aria-current="page"]{
  color: var(--migration-text);
  background: rgba(237, 242, 235, .10);
}

.page-migration .site-header__right{
  display: flex;
  justify-content: flex-end;
}

.page-migration .site-header__back{
  padding: 9px 12px;
  border: 1px solid var(--migration-border);
}

.page-migration .site-header__link:focus-visible,
.page-migration .site-header__back:focus-visible,
.migration-intro__parent:focus-visible,
.migration-bird:focus-visible,
.migration-play:focus-visible,
.migration-reset:focus-visible,
.migration-progress input:focus-visible{
  outline: 2px solid var(--migration-text);
  outline-offset: 3px;
}

.migration-story{
  position: relative;
}

.migration-shell{
  position: sticky;
  top: 0;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  box-sizing: border-box;
  height: 100vh;
  min-height: 100vh;
  padding-top: var(--migration-header-h);
  overflow: hidden;
}

.migration-scroll-space{
  height: 360vh;
  pointer-events: none;
}

.migration-intro{
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 18px;
  padding: 28px 24px 18px;
  color: var(--migration-panel-ink);
  background: var(--migration-panel);
  border-right: 1px solid rgba(19, 32, 22, .18);
  box-sizing: border-box;
  height: calc(100vh - var(--migration-header-h));
}

.migration-intro__parent{
  display: inline-block;
  color: currentColor;
  text-decoration: none;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .13em;
}

.migration-intro__title{
  margin: 10px 0 12px;
  font-size: clamp(40px, 4vw, 60px);
  line-height: .86;
  font-weight: 700;
  letter-spacing: -.065em;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.migration-intro__lede{
  max-width: 25ch;
  font-size: 12.5px;
  line-height: 1.42;
  color: rgba(19, 32, 22, .72);
}

.migration-birds{
  display: grid;
  gap: 1px;
  align-self: start;
  border-top: 1px solid rgba(19, 32, 22, .22);
}

.migration-bird{
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 3px 10px;
  align-items: center;
  width: 100%;
  padding: 8px 0;
  color: rgba(19, 32, 22, .42);
  text-align: left;
  border: 0;
  border-bottom: 1px solid rgba(19, 32, 22, .22);
  background: transparent;
  cursor: pointer;
}

.migration-bird.is-active{ color: var(--migration-panel-ink); }

.migration-bird__line{
  grid-row: 1 / span 2;
  display: block;
  width: 28px;
  height: 4px;
  background: rgba(19, 32, 22, .25);
}

.migration-bird.is-active .migration-bird__line.is-marina{ background: #8f6100; }
.migration-bird.is-active .migration-bird__line.is-ringlo{ background: #a52f24; }
.migration-bird.is-active .migration-bird__line.is-vaiana{ background: #087c79; }
.migration-bird.is-active .migration-bird__line.is-csaszar{ background: #6844a4; }

.migration-bird__name{
  font-size: 13px;
  font-weight: 700;
}

.migration-bird__meta{
  font-size: 9px;
  color: currentColor;
  opacity: .7;
}

.migration-intro__note{
  align-self: end;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 9px;
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: .08em;
  border-top: 1px solid rgba(19, 32, 22, .22);
  padding-top: 8px;
}

.migration-map-panel{
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto auto;
  height: calc(100vh - var(--migration-header-h));
  background: var(--migration-night);
}

.migration-map{
  position: relative;
  min-height: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 68%, rgba(200, 213, 79, .055), transparent 24%),
    var(--migration-night);
}

.migration-map__svg{
  display: block;
  width: 100%;
  height: 100%;
}

.migration-map__status{
  position: absolute;
  inset: 50% auto auto 50%;
  z-index: 5;
  transform: translate(-50%, -50%);
  color: var(--migration-muted);
  font-size: 12px;
}

.migration-map__status[hidden]{ display: none; }

.migration-map__reading{
  position: absolute;
  right: 22px;
  top: 22px;
  display: grid;
  justify-items: end;
  gap: 2px;
  color: var(--migration-text);
  pointer-events: none;
}

.migration-map__reading-label{
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--migration-muted);
}

.migration-map__reading strong{
  font-size: 24px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.migration-map__chapter{
  position: absolute;
  left: 22px;
  bottom: 24px;
  z-index: 4;
  display: grid;
  max-width: 330px;
  gap: 5px;
  padding-left: 14px;
  color: var(--migration-text);
  border-left: 2px solid var(--migration-panel);
  pointer-events: none;
}

.migration-map__chapter-index{
  color: var(--migration-panel);
  font-size: 10px;
  letter-spacing: .12em;
}

.migration-map__chapter strong{
  font-size: clamp(19px, 2.1vw, 30px);
  font-weight: 500;
  letter-spacing: -.025em;
}

.migration-map__chapter span:last-child{
  color: var(--migration-muted);
  font-size: 12px;
  line-height: 1.4;
}

.migration-graticule{
  fill: none;
  stroke: rgba(218, 232, 222, .08);
  stroke-width: .7;
  vector-effect: non-scaling-stroke;
}

.migration-country{
  fill: var(--migration-land);
  stroke: var(--migration-night);
  stroke-width: .7;
  vector-effect: non-scaling-stroke;
}

.migration-route-base,
.migration-route-progress{
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.migration-route-base{
  stroke: rgba(237, 242, 235, .13);
  stroke-width: 1.35;
}

.migration-route-progress{
  stroke-width: 2.5;
  filter: drop-shadow(0 0 4px rgba(255, 255, 255, .12));
}

.migration-route-progress.is-marina{ stroke: var(--migration-marina); }
.migration-route-progress.is-ringlo{ stroke: var(--migration-ringlo); }
.migration-route-progress.is-vaiana{ stroke: var(--migration-vaiana); }
.migration-route-progress.is-csaszar{ stroke: var(--migration-csaszar); }

.migration-route-group.is-hidden{ display: none; }

.migration-position{
  stroke: var(--migration-night);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.migration-position.is-marina{ fill: var(--migration-marina); }
.migration-position.is-ringlo{ fill: var(--migration-ringlo); }
.migration-position.is-vaiana{ fill: var(--migration-vaiana); }
.migration-position.is-csaszar{ fill: var(--migration-csaszar); }

.migration-place-label{
  fill: var(--migration-muted);
  font-size: 10px;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.migration-place-point{
  fill: var(--migration-panel);
  opacity: .75;
}

.migration-controls{
  display: none;
  grid-template-columns: auto minmax(160px, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 18px 22px;
  border-top: 1px solid var(--migration-border);
  border-bottom: 1px solid var(--migration-border);
}

.migration-play,
.migration-reset{
  font: inherit;
  color: var(--migration-text);
  border: 0;
  background: transparent;
  cursor: pointer;
}

.migration-play{
  display: inline-flex;
  gap: 9px;
  align-items: center;
  font-size: 13px;
}

.migration-reset{
  color: var(--migration-muted);
  font-size: 12px;
}

.migration-progress{ display: block; }

.migration-progress input{
  display: block;
  width: 100%;
  height: 18px;
  margin: 0;
  accent-color: var(--migration-panel);
  cursor: pointer;
}

.migration-detail{
  display: flex;
  justify-content: space-between;
  gap: 20px;
  min-height: 40px;
  padding: 12px 22px;
  color: var(--migration-muted);
  font-size: 11px;
}

.migration-source{
  padding: 18px max(22px, calc((100vw - 1260px) / 2));
  color: var(--migration-muted);
  background: var(--migration-night-soft);
  border-top: 1px solid var(--migration-border);
  font-size: 11px;
  line-height: 1.45;
}

.migration-source p{ max-width: 94ch; }

.migration-source a{
  color: var(--migration-text);
  text-underline-offset: 3px;
}

.page-migration .site-footer{
  position: relative;
  z-index: 3;
}

@media (max-width: 980px){
  .page-migration .site-header{
    height: auto;
    background: rgba(7, 23, 28, .94);
  }

  .page-migration .site-header__inner{
    min-height: var(--migration-header-h);
    grid-template-columns: auto 1fr auto;
  }

  .page-migration .site-header__brandmark{
    width: 48px;
    height: 30px;
  }

  .page-migration .site-header__nav{ display: none; }

  .migration-shell{
    position: relative;
    height: auto;
    min-height: 0;
    overflow: visible;
    grid-template-columns: 1fr;
  }

  .migration-scroll-space{ display: none; }

  .migration-intro{
    grid-template-columns: minmax(0, 1fr) minmax(210px, 300px);
    grid-template-rows: auto auto;
    padding: 30px 20px 20px;
    gap: 24px;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(19, 32, 22, .18);
  }

  .migration-intro__title{
    writing-mode: horizontal-tb;
    transform: none;
    margin: 10px 0 12px;
  }

  .migration-intro__lede{ max-width: 46ch; }

  .migration-intro__note{
    grid-column: 1 / -1;
  }

  .migration-map-panel{
    grid-template-rows: minmax(520px, 72vh) auto auto;
    height: auto;
  }

  .migration-map{ min-height: 520px; }

  .migration-controls{ display: grid; }
}

@media (max-width: 640px){
  .page-migration .site-header__inner{
    grid-template-columns: auto 1fr;
  }

  .page-migration .site-header__right{ justify-self: end; }

  .migration-intro{
    grid-template-columns: 1fr;
  }

  .migration-intro__note{ grid-column: auto; }

  .migration-map-panel{
    grid-template-rows: minmax(440px, 66vh) auto auto;
  }

  .migration-map{ min-height: 440px; }

  .migration-map__reading{
    top: 14px;
    right: 14px;
  }

  .migration-controls{
    grid-template-columns: 1fr auto;
    padding: 14px 16px;
  }

  .migration-progress{
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .migration-detail{
    flex-direction: column;
    gap: 4px;
    padding: 10px 16px;
  }
}

@media (prefers-reduced-motion: reduce){
  .migration-route-progress{ filter: none; }
}