/* ============================================================
   THE LINEAR TELEMETRY RIBBON — track-support.php
   Charcoal #12151A · cyan #00E5FF · amber #FFC107
   One geometric diagonal ribbon. Station state is expressed
   purely through typographic weight and tracking extremes.
   ============================================================ */

body.a91-telemetry-ribbon {
  --char: #12151A;
  --char-2: #191D24;
  --char-3: #0B0E12;
  --cyan: #00E5FF;
  --amber: #FFC107;
  --paper: #EEF3F6;
  --paper-dim: rgba(238, 243, 246, 0.8);
  --line: rgba(238, 243, 246, 0.16);
  --ease: cubic-bezier(0.18, 1, 0.24, 1);
  --axis-pad: 3.5rem;

  background: var(--char);
  color: var(--paper);
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: clip;
}
body.a91-telemetry-ribbon ::selection { background: var(--cyan); color: var(--char-3); }
body.a91-telemetry-ribbon :focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }

.tr-scanlines {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, rgba(238, 243, 246, 0.035) 0 1px, transparent 1px 4px),
    radial-gradient(70rem 40rem at 84% -6%, rgba(0, 229, 255, 0.12), transparent 70%),
    radial-gradient(50rem 34rem at 6% 108%, rgba(255, 193, 7, 0.1), transparent 72%);
}

/* ============================================================
   DECK
   ============================================================ */
.tr-deck {
  position: relative;
  z-index: 10;
  max-width: 96rem;
  margin: 0 auto;
  padding: clamp(1.75rem, 4.5vw, 3.5rem) clamp(1rem, 4vw, 3.5rem) clamp(5rem, 10vh, 8rem);
}
body.a91-has-axis.a91-telemetry-ribbon .tr-deck {
  padding-right: max(clamp(1rem, 4vw, 3.5rem), var(--axis-pad));
  padding-bottom: clamp(4.5rem, 9vh, 7rem);
}
body.a91-has-axis.a91-telemetry-ribbon .tr-channels {
  display: none !important;
}

/* ---------- head (brand-first) ---------- */
.tr-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 17rem);
  gap: clamp(1.2rem, 3vw, 3rem);
  align-items: end;
  padding-bottom: clamp(1.6rem, 3.4vw, 2.6rem);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(1.8rem, 4vw, 3rem);
}
.tr-kicker {
  margin: 0 0 0.55rem;
  color: var(--cyan);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}
.tr-brand {
  margin: 0 0 0.45rem;
  font-family: 'Oswald', 'Impact', sans-serif;
  font-size: clamp(2.5rem, 7vw, 5.4rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--paper);
  text-wrap: balance;
}
.tr-title {
  margin: 0 0 0.7rem;
  font-family: 'Oswald', 'Impact', sans-serif;
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.tr-title-thin {
  font-weight: 200;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.tr-lede {
  margin: 0;
  max-width: 46ch;
  color: var(--paper-dim);
  font-size: 0.9rem;
  line-height: 1.7;
}

.tr-readout {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--paper-dim);
  background: var(--char-2);
}
.tr-readout-pct {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(1.8rem, 3.4vw, 2.7rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
}
.tr-readout-label {
  font-size: 0.68rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.tr-readout-bar { display: block; height: 3px; background: rgba(238, 243, 246, 0.14); overflow: hidden; }
.tr-readout-bar i { display: block; height: 100%; background: var(--paper-dim); transition: width 1s var(--ease); }
.tr-readout.is-found { border-left-color: var(--cyan); }
.tr-readout.is-found .tr-readout-pct { color: var(--cyan); }
.tr-readout.is-found .tr-readout-bar i { background: var(--cyan); }
.tr-readout.is-miss { border-left-color: var(--amber); }
.tr-readout.is-miss .tr-readout-pct { color: var(--amber); }
.tr-readout.is-idle .tr-readout-pct { color: var(--paper-dim); font-weight: 200; letter-spacing: 0.1em; }

/* ---------- console (lookup) ---------- */
.tr-console {
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr);
  border: 1px solid var(--line);
  background: linear-gradient(120deg, var(--char-2), var(--char-3));
  margin-bottom: clamp(2rem, 5vw, 3.6rem);
}
.tr-console-rail {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 0.7rem;
  padding: 1rem 0;
  background: var(--char-3);
  border-right: 1px solid var(--line);
  color: var(--cyan);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
}
.tr-console-rail span { writing-mode: vertical-rl; }
.tr-form { padding: clamp(1.1rem, 2.6vw, 1.9rem); }
.tr-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin-bottom: 1.1rem;
}
.tr-field { display: grid; gap: 0.35rem; }
.tr-field > span {
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cyan);
}
.tr-field input {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border: 2px solid var(--line);
  background: var(--char);
  color: var(--paper);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  box-shadow: 3px 3px 0 transparent;
  transition:
    border-color 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}
.tr-field input::placeholder { color: #A8B4BC; }
.tr-field input:hover { border-color: rgba(0, 229, 255, 0.45); }
.tr-field input:focus {
  outline: none;
  border-color: var(--cyan);
  background: var(--char-3);
  box-shadow: 3px 3px 0 rgba(0, 229, 255, 0.35);
}
.tr-form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1rem; }
.tr-submit {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 3rem;
  padding: 0.85rem 1.55rem;
  border: 2px solid var(--cyan);
  background: var(--cyan);
  color: var(--char-3);
  font-family: 'Oswald', sans-serif;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% 70%, 94% 100%, 0 100%);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.45);
  overflow: hidden;
  transition:
    transform 0.14s ease,
    box-shadow 0.14s ease,
    background 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease,
    letter-spacing 0.2s ease;
}
.tr-submit::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--paper);
  transform: translateY(101%);
  transition: transform 0.28s var(--ease);
}
.tr-submit:hover,
.tr-submit:focus-visible {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.45);
  letter-spacing: 0.22em;
  outline: none;
}
.tr-submit:hover::after,
.tr-submit:focus-visible::after {
  transform: none;
}
.tr-submit:active {
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 transparent;
}
.tr-reset {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.15rem;
  border: 2px solid var(--line);
  background: transparent;
  color: var(--paper);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: 3px 3px 0 transparent;
  transition:
    transform 0.14s ease,
    box-shadow 0.14s ease,
    border-color 0.2s ease,
    color 0.2s ease,
    background 0.2s ease;
}
.tr-reset:hover,
.tr-reset:focus-visible {
  border-color: var(--amber);
  color: var(--char-3);
  background: var(--amber);
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.4);
  outline: none;
}
.tr-reset:active {
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 transparent;
}
.tr-form-note { color: #C5CED4; font-size: 0.74rem; letter-spacing: 0.06em; }

/* ============================================================
   THE RIBBON — one geometric diagonal path
   ============================================================ */
.tr-ribbon-wrap {
  position: relative;
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(4rem, 9vw, 7rem);
  overflow: hidden;
}
.tr-ribbon {
  position: relative;
  transform: rotate(-4.5deg);
  padding: 0 clamp(0.5rem, 3vw, 3rem);
}
.tr-ribbon-line {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 10px;
  transform: translateY(-50%) skewX(-16deg);
  background:
    repeating-linear-gradient(90deg, rgba(238, 243, 246, 0.22) 0 14px, transparent 14px 28px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.tr-ribbon-fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  box-shadow: 0 0 22px rgba(0, 229, 255, 0.55);
  transition: width 1.2s var(--ease);
}
.tr-ribbon.is-live .tr-ribbon-fill { width: calc(var(--progress) / 4 * 100%); }
.tr-ribbon.is-miss .tr-ribbon-fill { background: var(--amber); box-shadow: none; }

.tr-stations {
  position: relative;
  z-index: 2;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.4rem, 1.4vw, 1.2rem);
  align-items: center;
}
.tr-station {
  position: relative;
  display: grid;
  gap: 0.2rem;
  padding: 0.9rem 0.85rem;
  background: rgba(11, 14, 18, 0.82);
  border: 1px solid var(--line);
  /* geometric climb along the ribbon */
  transform: translateY(calc(var(--i) * -1.35rem)) rotate(4.5deg);
  transition: transform 0.7s var(--ease), border-color 0.5s ease, background 0.5s ease, box-shadow 0.5s ease;
}
.tr-station:nth-child(even) { margin-top: clamp(2rem, 5vw, 4.5rem); }
.tr-station-node {
  position: absolute;
  top: -0.55rem;
  left: 0.85rem;
  width: 0.9rem;
  height: 0.9rem;
  background: var(--char-3);
  border: 2px solid var(--paper-dim);
  transform: rotate(45deg);
  transition: background 0.4s ease, border-color 0.4s ease, transform 0.6s var(--ease);
}

/* --- typographic state: idle = hairline + wide tracking --- */
.tr-station-glyph {
  font-family: 'Oswald', sans-serif;
  font-size: 0.8rem;
  font-weight: 200;
  letter-spacing: 0.42em;
  color: var(--paper-dim);
  transition: font-weight 0.4s ease, letter-spacing 0.5s var(--ease), color 0.4s ease;
}
.tr-station-label {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(0.95rem, 1.7vw, 1.5rem);
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper-dim);
  transition: font-weight 0.4s ease, letter-spacing 0.55s var(--ease), color 0.4s ease, transform 0.55s var(--ease);
}
.tr-station-place {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(238, 243, 246, 0.72);
  transition: color 0.4s ease, letter-spacing 0.5s var(--ease);
}

/* --- done: mid weight, tightened --- */
.tr-station.is-done { border-color: rgba(0, 229, 255, 0.45); background: rgba(0, 229, 255, 0.07); }
.tr-station.is-done .tr-station-node { background: var(--cyan); border-color: var(--cyan); }
.tr-station.is-done .tr-station-glyph { font-weight: 500; letter-spacing: 0.2em; color: var(--cyan); }
.tr-station.is-done .tr-station-label { font-weight: 500; letter-spacing: 0.04em; color: var(--paper); }
.tr-station.is-done .tr-station-place { color: var(--paper-dim); letter-spacing: 0.16em; }

/* --- current: extreme heavy, negative tracking, scaled --- */
.tr-station.is-current {
  border-color: var(--cyan);
  background: var(--cyan);
  box-shadow: 0 18px 40px rgba(0, 229, 255, 0.28);
  transform: translateY(calc(var(--i) * -1.35rem)) rotate(4.5deg) scale(1.06);
}
.tr-station.is-current .tr-station-node { background: var(--char-3); border-color: var(--char-3); transform: rotate(45deg) scale(1.2); }
.tr-station.is-current .tr-station-glyph { font-weight: 700; letter-spacing: 0.06em; color: var(--char-3); }
.tr-station.is-current .tr-station-label {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--char-3);
  transform: scale(1.06);
  transform-origin: left center;
}
.tr-station.is-current .tr-station-place { color: rgba(11, 14, 18, 0.75); letter-spacing: 0.1em; }

/* --- miss: amber hairline --- */
.tr-station.is-muted { border-color: rgba(255, 193, 7, 0.3); }
.tr-station.is-muted .tr-station-glyph,
.tr-station.is-muted .tr-station-label { color: rgba(255, 193, 7, 0.85); font-weight: 200; letter-spacing: 0.3em; }
.tr-station.is-muted .tr-station-node { border-color: rgba(255, 193, 7, 0.5); }

.tr-station:hover { border-color: var(--paper); background: rgba(238, 243, 246, 0.06); }
.tr-station.is-current:hover { background: var(--paper); }

/* ============================================================
   REPORT
   ============================================================ */
.tr-report { max-width: 46rem; }
.tr-receipt {
  border: 1px solid var(--cyan);
  background: linear-gradient(140deg, var(--char-2), var(--char-3));
  padding: clamp(1.2rem, 3vw, 2.2rem);
}
.tr-receipt-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding-bottom: 0.8rem;
  border-bottom: 1px dashed var(--line);
}
.tr-receipt-tag {
  font-size: 0.66rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.tr-receipt-status {
  padding: 0.25rem 0.7rem;
  background: var(--cyan);
  color: var(--char-3);
  font-family: 'Oswald', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.tr-receipt-id {
  margin: 1rem 0 1.2rem;
  font-family: 'Oswald', sans-serif;
  font-size: clamp(1.4rem, 3.4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  word-break: break-all;
}
.tr-receipt-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
  gap: 0.9rem;
  margin: 0 0 1.4rem;
}
.tr-receipt-meta dt {
  font-size: 0.62rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cyan);
}
.tr-receipt-meta dd {
  margin: 0.2rem 0 0;
  font-family: 'Oswald', sans-serif;
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.tr-receipt-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; align-items: center; }

.tr-alert {
  padding: clamp(1.2rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-left: 4px solid var(--paper-dim);
  background: var(--char-2);
}
.tr-alert.is-miss { border-left-color: var(--amber); }
.tr-alert-flag {
  display: inline-block;
  margin-bottom: 0.7rem;
  padding: 0.2rem 0.6rem;
  font-size: 0.64rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  background: var(--amber);
  color: var(--char-3);
  font-weight: 600;
}
.tr-alert.is-idle .tr-alert-flag { background: rgba(238, 243, 246, 0.2); color: var(--paper); }
.tr-alert h2 {
  margin: 0 0 0.5rem;
  font-family: 'Oswald', sans-serif;
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 200;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.tr-alert.is-miss h2 { font-weight: 700; letter-spacing: -0.01em; color: var(--amber); }
.tr-alert p { margin: 0 0 1.1rem; max-width: 52ch; color: var(--paper-dim); font-size: 0.88rem; }

/* ============================================================
   CHANNEL CHAIN — diagonal corner nav (bottom-right)
   ============================================================ */
.tr-channels {
  position: fixed;
  z-index: 150;
  right: clamp(0.8rem, 2vw, 1.6rem);
  bottom: clamp(0.8rem, 2vw, 1.6rem);
}
.tr-channels-caption {
  margin: 0 0 0.35rem;
  text-align: right;
  color: var(--cyan);
  font-size: 0.58rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}
.tr-channels ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.22rem;
  justify-items: end;
}
.tr-channels li { transform: translateX(calc(var(--ch) * -0.55rem)); }
.tr-channel {
  display: inline-grid;
  grid-auto-flow: column;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line);
  background: rgba(11, 14, 18, 0.92);
  color: var(--paper);
  text-decoration: none;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  clip-path: polygon(6% 0, 100% 0, 100% 100%, 0 100%);
  transition: background 0.24s ease, color 0.24s ease, border-color 0.24s ease, transform 0.35s var(--ease), letter-spacing 0.35s ease;
}
.tr-channel-code { color: var(--cyan); font-weight: 600; font-size: 0.66rem; transition: color 0.24s ease; }
.tr-channel:hover,
.tr-channel:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--char-3);
  transform: translateX(-6px);
  letter-spacing: 0.2em;
}
.tr-channel:hover .tr-channel-code,
.tr-channel:focus-visible .tr-channel-code { color: var(--char-3); }
.tr-channel.is-here { border-color: var(--amber); color: var(--amber); }
.tr-channel.is-here .tr-channel-code { color: var(--amber); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1000px) {
  .tr-head { grid-template-columns: 1fr; align-items: start; }
  .tr-readout { max-width: 20rem; }
  .tr-stations { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
  .tr-station { transform: rotate(4.5deg) translateY(calc(var(--i) * -0.5rem)); }
  .tr-station.is-current { transform: rotate(4.5deg) translateY(calc(var(--i) * -0.5rem)) scale(1.03); }
  .tr-station:nth-child(even) { margin-top: clamp(1rem, 3vw, 2rem); }
}

@media (max-width: 660px) {
  .tr-ribbon { transform: none; }
  .tr-ribbon-line { display: none; }
  .tr-stations { grid-template-columns: 1fr; }
  .tr-station,
  .tr-station.is-current { transform: none; }
  .tr-station:nth-child(even) { margin-top: 0; }
  .tr-station { border-left: 3px solid var(--line); }
  .tr-station.is-done { border-left-color: var(--cyan); }
  .tr-station.is-current { border-left-color: var(--char-3); }
  .tr-console { grid-template-columns: 1fr; }
  .tr-console-rail { flex-direction: row; grid-auto-flow: column; justify-content: center; padding: 0.4rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .tr-console-rail span { writing-mode: horizontal-tb; }
  .tr-channels { left: 0.6rem; right: 0.6rem; bottom: 0.85rem; }
  .tr-channels ul { grid-template-columns: repeat(4, minmax(0, 1fr)); justify-items: stretch; }
  .tr-channels li { transform: none; }
  .tr-channel { justify-content: center; clip-path: none; font-size: 0.7rem; padding: 0.45rem 0.3rem; min-height: 2.4rem; }
  .tr-channel-code { display: none; }
  .tr-deck { padding-bottom: 4.5rem; }
  body.a91-has-axis.a91-telemetry-ribbon .tr-deck {
    padding-right: clamp(1rem, 4vw, 1.5rem);
    padding-bottom: 4.5rem;
  }
  .tr-form-actions .tr-submit,
  .tr-form-actions .tr-reset {
    width: 100%;
    justify-content: center;
  }
  .tr-receipt-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
  }
  .tr-receipt-actions .tr-submit,
  .tr-receipt-actions .tr-reset {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.a91-telemetry-ribbon *,
  body.a91-telemetry-ribbon *::before,
  body.a91-telemetry-ribbon *::after {
    transition-duration: 0.001ms !important;
    animation: none !important;
  }
}