/* Rocket Engine Works — dark industrial chrome: bevelled panels, machine tan
   borders, and one loud amber for anything that matters. */

:root {
  --bg: #191713;
  --ink: #e6dfd2;
  --ink-dim: #a8a294;
  --ink-fine: #7d7869;
  --panel: rgba(38, 35, 30, 0.94);
  --panel-solid: #26231e;
  --panel-hi: #33302a;
  --line: rgba(126, 116, 96, 0.28);
  --line-strong: rgba(160, 146, 118, 0.5);

  /* the floor palette: iron, rust, machine tan, one amber */
  --amber: #e0a02c;
  --amber-lit: #ffc255;
  --iron: #8d949c;
  --steel: #aab2ba;
  --rust: #a25a35;
  --copper: #c2703c;
  --ember: #e2653a;
  --plum: #8a6ea6;
  --teal: #3f8f92;
  --moss: #6d8f4c;
  --lead: #6b7078;
  --green: #7edc6e;

  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --panel-w: 376px;
  --shadow: 0 8px 26px rgba(0, 0, 0, 0.5);
  /* the bevel that makes every panel look stamped out of sheet */
  --bevel: inset 0 1px 0 rgba(214, 198, 160, 0.14), inset 0 -1px 0 rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

#stage {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: none;
}
#stage.dragging { cursor: grabbing; }

/* ---------------------------------------------------------------- top bar */

.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  pointer-events: none;
  z-index: 5;
  background: linear-gradient(to bottom,
    rgba(20, 18, 15, 0.94) 0%,
    rgba(20, 18, 15, 0.78) 55%,
    rgba(20, 18, 15, 0) 100%);
}

.brand { display: flex; gap: 12px; align-items: center; pointer-events: auto; }

/* a nozzle bell seen from the side */
.logo {
  width: 30px; height: 30px;
  flex: none;
  border-radius: 6px;
  background: linear-gradient(160deg, var(--lead) 0%, var(--amber) 55%, var(--ember) 100%);
  box-shadow: var(--shadow), var(--bevel);
  position: relative;
}
.logo::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 6px;
  width: 0; height: 0;
  transform: translateX(-50%);
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 11px solid rgba(24, 21, 17, 0.82);
}

.brand-text h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: #f0e6d2;
}
.brand-text p {
  margin: 3px 0 0;
  font-size: 12px;
  color: var(--ink-dim);
  max-width: 48ch;
}

.top-actions { display: flex; gap: 8px; pointer-events: auto; }

/* ------------------------------------------------------------------ hud */

.hud {
  /* measured from the real topbar height in main.js, so a wrapped subtitle
     pushes the HUD down instead of being written over by it */
  position: fixed;
  top: var(--hud-top, 70px);
  left: 18px;
  z-index: 4;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  max-width: min(640px, calc(100vw - 36px));
  pointer-events: none;
}

.hud-item {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 5px 10px;
  border-radius: 4px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--bevel);
  font-size: 11px;
}
.hud-k { color: var(--ink-fine); text-transform: uppercase; letter-spacing: 0.08em; font-size: 9.5px; }
.hud-v { font-family: var(--mono); font-weight: 700; color: var(--amber); font-size: 12px; }

.hud-note {
  flex-basis: 100%;
  font-size: 11.5px;
  color: var(--ink-dim);
  padding: 2px 2px 0;
  max-width: 62ch;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

/* ---------------------------------------------------------------- zoomer */

.zoomer {
  position: fixed;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 4;
}
.zoomer button {
  width: 34px; height: 34px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  font-size: 16px;
  cursor: pointer;
  box-shadow: var(--bevel);
  display: grid;
  place-items: center;
}
.zoomer button:hover { border-color: var(--amber); color: var(--amber); }

/* -------------------------------------------------------------- inspector */

.inspector {
  position: fixed;
  top: 76px;
  right: 14px;
  bottom: 132px;
  width: var(--panel-w);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 14px;
  border-radius: 6px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow), var(--bevel);
  z-index: 3;
  scrollbar-width: thin;
  scrollbar-color: rgba(160, 146, 118, 0.4) transparent;
}
.inspector.hidden { display: none; }
.inspector::-webkit-scrollbar { width: 9px; }
.inspector::-webkit-scrollbar-thumb {
  background: rgba(160, 146, 118, 0.32);
  border-radius: 5px;
}

.sheet-handle { display: none; }

.stage-card {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 12px;
}

.eyebrow { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 7px; }

.chip {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 3px;
  border: 1px solid var(--line);
  background: rgba(224, 160, 44, 0.12);
  color: var(--amber);
}
.tag { font-size: 11px; color: var(--ink-fine); }

.stage-card h2 {
  margin: 0 0 6px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #f2e8d6;
}
.lede { margin: 0 0 8px; font-size: 13.5px; line-height: 1.5; color: var(--ink); }
.muted { margin: 0; font-size: 12.5px; line-height: 1.62; color: var(--ink-dim); }

.dwell {
  margin-top: 10px;
  font-size: 10.5px;
  color: var(--ink-fine);
}
.dwell i {
  display: block;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--amber), var(--ember));
  margin-bottom: 5px;
  transition: width 0.12s linear;
}
kbd {
  font-family: var(--mono);
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid var(--line-strong);
  background: rgba(0, 0, 0, 0.3);
}

.sec { margin-bottom: 14px; }
.sec h3 {
  margin: 0 0 7px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 5px;
}
.hint {
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  font-size: 10px;
  color: var(--ink-fine);
}
.fine { font-size: 11px; color: var(--ink-fine); margin: 6px 0 0; line-height: 1.5; }

/* data sheet rows */
.sheet { display: flex; flex-direction: column; gap: 1px; }
.sheet .row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 4px 7px;
  border-radius: 3px;
  font-size: 11.5px;
  background: rgba(0, 0, 0, 0.16);
}
.sheet .row span { color: var(--ink-dim); }
.sheet .row b { font-family: var(--mono); font-size: 11.5px; color: var(--ink); font-weight: 600; }
/* a computed row is marked, so it is clear which numbers are being worked out */
.sheet .row.calc { background: rgba(224, 160, 44, 0.07); }
.sheet .row.calc b { color: var(--amber); }
.sheet .row.calc span::after {
  content: "ƒ";
  font-family: var(--mono);
  font-size: 9px;
  color: var(--amber);
  opacity: 0.55;
  margin-left: 5px;
}
.sheet .row.warn { background: rgba(226, 101, 58, 0.14); }
.sheet .row.warn b { color: var(--ember); }
.sheet .row.big { margin-top: 4px; padding: 7px; }
.sheet .row.big b { font-size: 14px; }

/* material bars */
.bars { display: flex; flex-direction: column; gap: 4px; }
.bar { display: grid; grid-template-columns: 96px 1fr 34px; align-items: center; gap: 8px; font-size: 11px; }
.bar .lbl { color: var(--ink-dim); }
.bar .track { height: 7px; border-radius: 4px; background: rgba(0, 0, 0, 0.35); overflow: hidden; }
.bar .fill { display: block; height: 100%; border-radius: 4px; }
.bar .val { font-family: var(--mono); font-size: 10.5px; color: var(--ink-fine); text-align: right; }

/* traveller tokens */
.tokens { display: flex; flex-wrap: wrap; gap: 4px; }
.tok {
  font-size: 10.5px;
  padding: 3px 7px;
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--line);
  color: var(--ink-dim);
}
.tok.focus { border-color: var(--amber); color: var(--amber); background: rgba(224, 160, 44, 0.12); }

.output { display: flex; flex-direction: column; gap: 4px; font-size: 11.5px; }
.unit {
  padding: 5px 8px;
  border-radius: 3px;
  background: rgba(110, 220, 110, 0.08);
  border-left: 2px solid var(--green);
  color: var(--ink-dim);
}
.unit .no { font-family: var(--mono); color: var(--green); font-weight: 700; }
.caret { color: var(--amber); animation: blink 1.1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.chips { display: flex; flex-wrap: wrap; gap: 4px; }
.chips button {
  font-size: 10.5px;
  padding: 4px 8px;
  border-radius: 3px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.22);
  color: var(--ink-dim);
  cursor: pointer;
  font-family: inherit;
}
.chips button:hover { border-color: var(--line-strong); color: var(--ink); }
.chips button.on { border-color: var(--amber); color: var(--amber); background: rgba(224, 160, 44, 0.14); }

/* ------------------------------------------------------------------ dock */

.dock {
  position: fixed;
  left: 14px;
  right: calc(var(--panel-w) + 28px);
  bottom: 14px;
  z-index: 5;
  padding: 10px 12px;
  border-radius: 6px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow), var(--bevel);
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.inspector.hidden ~ .dock { right: 14px; }

.dock-row { display: flex; align-items: flex-end; gap: 10px; flex-wrap: wrap; }
.dock-prompt { gap: 8px; }

.field { display: flex; flex-direction: column; gap: 4px; font-size: 10px; color: var(--ink-fine); }
.field.grow { flex: 1 1 200px; }
.field span { text-transform: uppercase; letter-spacing: 0.09em; font-weight: 600; }
.field b { font-family: var(--mono); color: var(--amber); font-weight: 700; letter-spacing: 0; text-transform: none; }

.field input[type="text"] {
  font-family: var(--mono);
  font-size: 13px;
  padding: 7px 10px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.34);
  color: var(--ink);
  box-shadow: var(--bevel);
}
.field input[type="text"]:focus { outline: none; border-color: var(--amber); }

.field.slider { flex: 1 1 170px; min-width: 150px; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 16px;
  background: transparent;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 5px;
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--line);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  margin-top: -5.5px;
  border-radius: 3px;
  background: var(--amber);
  border: 1px solid rgba(0, 0, 0, 0.5);
  box-shadow: 0 1px 0 rgba(255, 220, 160, 0.35) inset;
}
input[type="range"]::-moz-range-track {
  height: 5px;
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--line);
}
input[type="range"]::-moz-range-thumb {
  width: 13px; height: 13px;
  border-radius: 3px;
  background: var(--amber);
  border: 1px solid rgba(0, 0, 0, 0.5);
}

button {
  font-family: inherit;
  font-size: 12px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--panel-hi);
  color: var(--ink);
  padding: 8px 14px;
  cursor: pointer;
  box-shadow: var(--bevel);
}
button:hover { border-color: var(--line-strong); }

button.primary {
  background: linear-gradient(180deg, var(--amber-lit), var(--amber));
  border-color: rgba(0, 0, 0, 0.5);
  color: #241c0c;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
button.primary:hover { filter: brightness(1.08); }

button.ghost {
  background: var(--panel);
  font-size: 11.5px;
  padding: 6px 11px;
}
button.ghost:hover { border-color: var(--amber); color: var(--amber); }

button.icon {
  width: 36px;
  padding: 8px 0;
  display: grid;
  place-items: center;
  font-size: 13px;
}

.group { display: flex; gap: 6px; align-items: center; }
.toggles { gap: 12px; }
.toggle { display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--ink-dim); cursor: pointer; }
.toggle input { accent-color: var(--amber); }

#btn-tune { display: none; }
.dock-tune { display: contents; }

/* --------------------------------------------------------------- tooltip */

.tooltip {
  position: fixed;
  z-index: 20;
  max-width: 280px;
  padding: 8px 10px;
  border-radius: 4px;
  background: rgba(24, 21, 17, 0.96);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--ink-dim);
  pointer-events: none;
}
.tooltip b { display: block; color: var(--amber); font-size: 12px; margin-bottom: 3px; }

/* ----------------------------------------------------------------- modal */

.modal {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: rgba(10, 9, 7, 0.72);
  display: grid;
  place-items: center;
  padding: 20px;
  overflow-y: auto;
}
.modal[hidden] { display: none; }
.modal-card {
  position: relative;
  max-width: 640px;
  max-height: 84vh;
  overflow-y: auto;
  padding: 26px 28px;
  border-radius: 8px;
  background: var(--panel-solid);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
}
.modal-card h2 {
  margin: 20px 0 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
}
.modal-card h2:first-of-type { margin-top: 0; }
.modal-card p, .modal-card li {
  font-size: 13px;
  line-height: 1.66;
  color: var(--ink-dim);
  margin: 0 0 10px;
}
.modal-card strong { color: var(--ink); }
.modal-card ul { padding-left: 18px; margin: 0 0 10px; }
.modal-close {
  position: absolute;
  top: 12px; right: 12px;
  width: 30px; height: 30px;
  padding: 0;
  font-size: 18px;
  display: grid;
  place-items: center;
}

/* ---------------------------------------------------------------- mobile */

@media (max-width: 900px) {
  .brand-text p { display: none; }
  .brand-text h1 { font-size: 15px; }
  .zoomer { left: 10px; top: auto; bottom: calc(var(--dock-h, 110px) + 24px); transform: none; }

  .hud { left: 10px; gap: 4px; }
  .hud-item { padding: 4px 8px; }

  .inspector {
    top: auto;
    left: 10px;
    right: 10px;
    bottom: calc(var(--dock-h, 110px) + 18px);
    width: auto;
    max-height: 30vh;
    padding: 8px 12px 12px;
  }
  .inspector.open { max-height: 64vh; }

  /* on a phone only the write-up matters until the sheet is pulled open */
  .inspector .sec { display: none; }
  .inspector.open .sec { display: block; }

  .sheet-handle {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 4px 0 8px;
    background: none;
    border: none;
    box-shadow: none;
    color: var(--ink-fine);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }
  .sheet-handle .grip {
    display: block;
    width: 34px; height: 3px;
    border-radius: 2px;
    background: var(--line-strong);
  }

  .dock { left: 10px; right: 10px; bottom: 10px; padding: 8px 10px; }
  .inspector.hidden ~ .dock { right: 10px; }

  #btn-tune { display: grid; }
  .dock-tune {
    display: none;
    flex-basis: 100%;
    flex-wrap: wrap;
    gap: 8px;
  }
  .dock.tune-open .dock-tune { display: flex; }
  .dock-tune .field.slider { flex: 1 1 130px; }
}

@media (max-width: 560px) {
  .stage-card h2 { font-size: 16px; }
  .lede { font-size: 12.5px; }
}