/* Flux Beacon — track-only visual language
   Cool mist + mint flux + flame accent. Vertical ladder + radial ring.
   Independent of Waypoint Board (wp-*), Relay Console (rx-*), Inkforge. */

.page-track {
  --fb-ink: #101828;
  --fb-mute: #667085;
  --fb-mist: #f0f4fa;
  --fb-sheet: #ffffff;
  --fb-line: rgba(16, 24, 40, 0.1);
  --fb-mint: #00c2a8;
  --fb-mint-deep: #089180;
  --fb-flame: #ff6b35;
  --fb-night: #0b1220;
  --fb-display: "Source Serif 4", Georgia, serif;
  --fb-sans: "Sora", "Segoe UI", sans-serif;
  --fb-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --fb-spring: cubic-bezier(0.34, 1.4, 0.64, 1);
}

.page-track .a61-stage,
.page-track .page-main {
  background: transparent !important;
  color: var(--fb-ink) !important;
  font-family: var(--fb-sans);
}

.page-track .page-main {
  max-width: none;
  padding: 0;
}

.page-track .a61-aisle-rail,
.page-track .a61-mob-bar {
  display: none !important;
}

.fb-root {
  position: relative;
  isolation: isolate;
  padding: clamp(1.25rem, 3.5vw, 2.5rem) clamp(1rem, 3.5vw, 2.5rem) 3.5rem;
  overflow-x: clip;
}

.fb-sky {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 55% 40% at 0% 0%, rgba(0, 194, 168, 0.16), transparent 55%),
    radial-gradient(ellipse 45% 35% at 100% 10%, rgba(255, 107, 53, 0.12), transparent 50%),
    var(--fb-mist);
}

.fb-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
  animation: fb-drift 16s ease-in-out infinite alternate;
}

.fb-glow-a {
  width: 38vw;
  height: 38vw;
  top: 10%;
  left: -8%;
  background: rgba(0, 194, 168, 0.3);
}

.fb-glow-b {
  width: 30vw;
  height: 30vw;
  bottom: 8%;
  right: -5%;
  background: rgba(255, 107, 53, 0.22);
  animation-delay: -4s;
}

@keyframes fb-drift {
  from { transform: translate(0, 0); }
  to { transform: translate(3%, -4%); }
}

/* Named dashboard grid */
.fb-dash {
  display: grid;
  grid-template-columns: minmax(17rem, 22rem) minmax(0, 1fr);
  grid-template-areas:
    "intro intro"
    "beacon stage"
    "channels channels";
  gap: 1.15rem 1.35rem;
  width: min(1180px, 100%);
  margin-inline: auto;
  align-items: start;
}

.fb-intro { grid-area: intro; }
.fb-beacon { grid-area: beacon; }
.fb-stage { grid-area: stage; min-width: 0; }
.fb-channels { grid-area: channels; }

.fb-eyebrow {
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fb-mint-deep);
}

.fb-intro h1 {
  margin: 0 0 0.65rem;
  font-family: var(--fb-display);
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.fb-intro h1 em {
  font-style: italic;
  color: var(--fb-flame);
}

.fb-lede {
  margin: 0;
  max-width: 40rem;
  color: var(--fb-mute);
  font-size: 1.05rem;
  line-height: 1.55;
}

/* Beacon column */
.fb-beacon {
  position: sticky;
  top: 0.75rem;
  align-self: start;
  isolation: isolate;
}

.fb-beacon-ring {
  position: absolute;
  inset: -12% -18% auto;
  aspect-ratio: 1;
  pointer-events: none;
  z-index: 0;
}

.fb-beacon-ring span {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px dashed rgba(0, 194, 168, 0.25);
  animation: fb-pulse-ring 4.5s ease-out infinite;
}

.fb-beacon-ring span:nth-child(2) { inset: 12%; animation-delay: 0.7s; }
.fb-beacon-ring span:nth-child(3) { inset: 24%; animation-delay: 1.4s; }

@keyframes fb-pulse-ring {
  0% { transform: scale(0.92); opacity: 0.7; }
  100% { transform: scale(1.08); opacity: 0; }
}

.fb-form {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.9rem;
  padding: 1.35rem 1.25rem 1.5rem;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px) saturate(1.2);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 2rem 1.25rem 2rem 1.25rem;
  box-shadow:
    0 24px 50px rgba(16, 24, 40, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.fb-form-kicker {
  margin: 0;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fb-mute);
}

.fb-field {
  display: grid;
  gap: 0.4rem;
}

.fb-field span {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fb-mute);
}

.fb-field input {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--fb-line) !important;
  border-radius: 0.95rem !important;
  background: rgba(240, 244, 250, 0.85) !important;
  box-shadow: none !important;
  padding: 0.85rem 1rem !important;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fb-ink) !important;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}

.fb-field input::placeholder {
  color: var(--fb-mute);
  opacity: 0.75;
}

.fb-field input:focus {
  border-color: var(--fb-mint) !important;
  box-shadow: 0 0 0 4px rgba(0, 194, 168, 0.18);
  transform: translateY(-1px);
  background: #fff !important;
}

.fb-submit {
  border: 0;
  border-radius: 999px;
  padding: 0.95rem 1.2rem;
  background: linear-gradient(135deg, var(--fb-mint), var(--fb-mint-deep));
  color: #fff;
  font-family: var(--fb-sans);
  font-weight: 750;
  font-size: 0.92rem;
  cursor: pointer;
  box-shadow: 0 14px 32px rgba(0, 194, 168, 0.3);
  transition: transform 0.3s var(--fb-spring), box-shadow 0.3s;
}

.fb-submit:hover:not(:disabled) {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 18px 40px rgba(0, 194, 168, 0.38);
}

.fb-submit:disabled {
  opacity: 0.7;
  cursor: wait;
}

.fb-form-note {
  margin: 0;
  font-size: 0.78rem;
  color: var(--fb-mute);
  line-height: 1.45;
}

/* Stage panel */
.fb-stage {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: 1.75rem;
  padding: clamp(1.15rem, 2.5vw, 1.75rem);
  box-shadow: 0 20px 48px rgba(16, 24, 40, 0.08);
  min-height: 0;
}

.fb-stage--idle {
  min-height: 22rem;
}

.fb-stage--found,
.fb-stage--miss {
  min-height: auto;
}

.fb-found-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.25rem;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--fb-line);
}

.fb-live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.45rem;
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fb-mint-deep);
}

.fb-live i {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--fb-mint);
  box-shadow: 0 0 0 0 rgba(0, 194, 168, 0.5);
  animation: fb-live 1.6s ease-out infinite;
}

@keyframes fb-live {
  70% { box-shadow: 0 0 0 10px rgba(0, 194, 168, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 194, 168, 0); }
}

.fb-identity h2 {
  margin: 0 0 0.25rem;
  font-family: var(--fb-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  word-break: break-word;
}

.fb-status {
  margin: 0;
  color: var(--fb-mute);
  font-weight: 600;
}

/* Radial progress */
.fb-ring {
  position: relative;
  width: 7.5rem;
  height: 7.5rem;
}

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

.fb-ring-track {
  fill: none;
  stroke: rgba(16, 24, 40, 0.08);
  stroke-width: 8;
}

.fb-ring-fill {
  fill: none;
  stroke: url(#fbGrad);
  stroke: var(--fb-mint);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 1s var(--fb-ease);
}

.fb-ring-readout {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  gap: 0.1rem;
}

.fb-ring-readout strong {
  font-family: var(--fb-display);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1;
}

.fb-ring-readout span {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fb-mute);
}

/* Vertical ladder pipeline */
.fb-ladder {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.fb-rung {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.85rem;
  opacity: 1;
  transform: none;
  animation: fb-rung-in 0.5s var(--fb-ease) both;
  animation-delay: calc(var(--ri, 0) * 90ms);
}

/* Animate transform only — fill-mode opacity was fighting .is-pending */
@keyframes fb-rung-in {
  from { transform: translateX(12px); opacity: 0.35; }
  to { transform: none; opacity: 1; }
}

.fb-rung.is-pending {
  animation: none;
  opacity: 0.42;
}

.fb-rung.is-done,
.fb-rung.is-active {
  opacity: 1;
}

.fb-rung-rail {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 1.15rem;
}

.fb-rung-node {
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  background: rgba(16, 24, 40, 0.15);
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px var(--fb-line);
  z-index: 1;
  transition: background 0.3s, box-shadow 0.3s, transform 0.35s var(--fb-spring);
}

.fb-rung-stem {
  flex: 1;
  width: 2px;
  min-height: 2.5rem;
  margin-top: 0.25rem;
  background: linear-gradient(180deg, rgba(16, 24, 40, 0.12), rgba(16, 24, 40, 0.05));
  border-radius: 2px;
}

.fb-rung.is-done .fb-rung-node {
  background: var(--fb-mint);
  box-shadow: 0 0 0 4px rgba(0, 194, 168, 0.2);
}

.fb-rung.is-done .fb-rung-stem {
  background: linear-gradient(180deg, var(--fb-mint), rgba(0, 194, 168, 0.25));
}

.fb-rung.is-active .fb-rung-node {
  background: var(--fb-flame);
  transform: scale(1.25);
  box-shadow: 0 0 0 6px rgba(255, 107, 53, 0.22);
  animation: fb-node-pulse 1.8s ease-out infinite;
}

@keyframes fb-node-pulse {
  70% { box-shadow: 0 0 0 14px rgba(255, 107, 53, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 107, 53, 0); }
}

.fb-rung-card {
  position: relative;
  padding: 0.95rem 1.1rem;
  margin-bottom: 0.65rem;
  background: var(--fb-sheet);
  border: 1px solid var(--fb-line);
  border-radius: 1.15rem;
  transition: transform 0.3s var(--fb-spring), box-shadow 0.3s, border-color 0.25s;
}

.fb-rung.is-active .fb-rung-card {
  border-color: rgba(255, 107, 53, 0.35);
  box-shadow: 0 16px 36px rgba(255, 107, 53, 0.12);
  transform: translateX(4px);
}

.fb-rung.is-done .fb-rung-card {
  border-color: rgba(0, 194, 168, 0.28);
}

.fb-rung-code {
  font-size: 0.65rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  color: var(--fb-mute);
}

.fb-rung-card h3 {
  margin: 0.2rem 0 0.25rem;
  font-family: var(--fb-display);
  font-size: 1.2rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.fb-rung-card p {
  margin: 0;
  color: var(--fb-mute);
  font-size: 0.9rem;
  line-height: 1.45;
}

.fb-chip {
  display: inline-block;
  margin-top: 0.55rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: rgba(255, 107, 53, 0.12);
  color: var(--fb-flame);
  font-style: normal;
  font-size: 0.65rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.fb-chip-done {
  background: rgba(0, 194, 168, 0.12);
  color: var(--fb-mint-deep);
}

.fb-cargo-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(12rem, auto);
  gap: 1rem;
  align-items: end;
  margin-top: 1.25rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--fb-line);
}

.fb-cargo h3 {
  margin: 0 0 0.65rem;
  font-family: var(--fb-display);
  font-size: 1.15rem;
}

.fb-cargo ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.fb-cargo li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0.75rem;
  border-radius: 0.75rem;
  background: var(--fb-mist);
  font-size: 0.9rem;
}

.fb-cargo li em {
  font-style: normal;
  font-weight: 750;
  color: var(--fb-mint-deep);
}

.fb-cargo-empty p {
  margin: 0;
  color: var(--fb-mute);
  font-size: 0.9rem;
}

.fb-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.fb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.15rem;
  border-radius: 999px;
  font-weight: 750;
  font-size: 0.85rem;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.3s var(--fb-spring), background 0.25s, color 0.25s;
}

.fb-btn:hover { transform: translateY(-2px); }

.fb-btn-fill {
  background: var(--fb-night);
  color: #fff;
}

.fb-btn-fill:hover {
  background: var(--fb-flame);
  color: #fff;
}

.fb-btn-ghost {
  border: 1px solid var(--fb-line);
  background: #fff;
  color: var(--fb-ink);
}

.fb-btn-ghost:hover {
  border-color: var(--fb-mint);
  color: var(--fb-mint-deep);
}

/* Miss / idle */
.fb-miss {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: start;
  padding: 0.5rem;
}

.fb-miss-glyph {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 1.25rem;
  background: rgba(255, 107, 53, 0.12);
  display: grid;
  place-items: center;
  position: relative;
}

.fb-miss-glyph span {
  position: absolute;
  width: 1.5rem;
  height: 3px;
  background: var(--fb-flame);
  border-radius: 2px;
}

.fb-miss-glyph span:first-child { transform: rotate(45deg); }
.fb-miss-glyph span:last-child { transform: rotate(-45deg); }

.fb-miss h2 {
  margin: 0 0 0.4rem;
  font-family: var(--fb-display);
  font-size: 1.6rem;
}

.fb-miss p,
.fb-miss li {
  color: var(--fb-mute);
}

.fb-miss ul {
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
}

.fb-idle {
  display: grid;
  gap: 1.35rem;
  align-content: start;
  min-height: 22rem;
}

.fb-ladder-ghost {
  opacity: 0.55;
  filter: grayscale(0.25);
  pointer-events: none;
  max-height: 16rem;
  overflow: hidden;
  mask-image: linear-gradient(180deg, #000 55%, transparent);
  -webkit-mask-image: linear-gradient(180deg, #000 55%, transparent);
}

.fb-ladder-ghost .fb-rung {
  animation: none;
  opacity: 0.5;
}

.fb-ladder-ghost .fb-rung-card {
  margin-bottom: 0.45rem;
  padding: 0.75rem 0.95rem;
}

.fb-idle-copy {
  position: static;
  padding: 1.35rem 1.25rem;
  text-align: center;
  background: linear-gradient(145deg, rgba(0, 194, 168, 0.08), rgba(255, 255, 255, 0.95));
  border: 1px solid rgba(0, 194, 168, 0.18);
  border-radius: 1.25rem;
}

.fb-idle-copy h2 {
  margin: 0 0 0.35rem;
  font-family: var(--fb-display);
  font-size: clamp(1.35rem, 3vw, 1.65rem);
}

.fb-idle-copy p {
  margin: 0;
  color: var(--fb-mute);
  max-width: 32rem;
  margin-inline: auto;
  line-height: 1.5;
}

/* Channels */
.fb-channels {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.fb-channel {
  display: grid;
  gap: 0.2rem;
  padding: 1rem 1.05rem;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--fb-line);
  border-radius: 1.15rem;
  color: var(--fb-ink);
  text-decoration: none;
  transition: transform 0.3s var(--fb-spring), background 0.25s, box-shadow 0.3s, color 0.25s;
  animation: fb-channel-in 0.45s var(--fb-ease) both;
  animation-delay: calc(var(--ci, 0) * 50ms);
}

@keyframes fb-channel-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.fb-channel:hover {
  transform: translateY(-4px);
  background: var(--fb-night);
  color: #fff;
  box-shadow: 0 16px 36px rgba(11, 18, 32, 0.18);
}

.fb-channel strong {
  font-family: var(--fb-display);
  font-size: 1.05rem;
  font-weight: 650;
  color: inherit;
}

.fb-channel span {
  font-size: 0.75rem;
  color: var(--fb-mute);
}

.fb-channel:hover span { color: var(--fb-mint); }

@media (max-width: 920px) {
  .fb-dash {
    grid-template-columns: 1fr;
    grid-template-areas:
      "intro"
      "beacon"
      "stage"
      "channels";
  }

  .fb-beacon {
    position: static;
  }

  .fb-beacon-ring { display: none; }

  .fb-form {
    border-radius: 1.35rem;
  }

  .fb-found-top {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .fb-ring {
    width: 6.5rem;
    height: 6.5rem;
  }

  .fb-cargo-row {
    grid-template-columns: 1fr;
  }

  .fb-actions {
    justify-content: flex-start;
  }

  .fb-btn {
    white-space: normal;
  }

  .fb-channels {
    grid-template-columns: 1fr 1fr;
  }

  .fb-ladder-ghost {
    max-height: 12rem;
  }
}

@media (max-width: 560px) {
  .fb-intro h1 {
    font-size: clamp(2rem, 9vw, 2.6rem);
  }

  .fb-channels { grid-template-columns: 1fr; }

  .fb-miss {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .fb-rung {
    grid-template-columns: 1.5rem minmax(0, 1fr);
    gap: 0.65rem;
  }

  .fb-rung.is-active .fb-rung-card {
    transform: none;
  }

  .fb-stage {
    border-radius: 1.25rem;
    padding: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .fb-glow,
  .fb-beacon-ring span,
  .fb-live i,
  .fb-rung,
  .fb-channel,
  .fb-rung.is-active .fb-rung-node {
    animation: none !important;
  }

  .fb-rung,
  .fb-channel {
    opacity: 1;
    transform: none;
  }

  .fb-rung.is-pending {
    opacity: 0.42;
  }
}