/* ============================================================
   Abyssal Towline — stage, HUD, controls
   ============================================================ */

#stage {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  background: var(--abyss);
  cursor: crosshair;
}

/* ---------- HUD shell ---------- */
.hud {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  font-family: var(--font-display);
  padding:
    max(env(safe-area-inset-top), 0.75rem)
    max(env(safe-area-inset-right), 0.75rem)
    max(env(safe-area-inset-bottom), 0.75rem)
    max(env(safe-area-inset-left), 0.75rem);
}
.hud[hidden] {
  display: none;
}

/* ---------- corner gauges (top-left) ---------- */
.gauges {
  position: absolute;
  top: max(env(safe-area-inset-top), 0.85rem);
  left: max(env(safe-area-inset-left), 0.85rem);
  display: grid;
  gap: 0.45rem;
  width: clamp(8.5rem, 34vw, 12rem);
}

.gauge {
  display: grid;
  grid-template-columns: 3.1rem 1fr 2.1rem;
  align-items: center;
  gap: 0.4rem;
}

.gauge-label {
  font-size: 0.56rem;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.gauge-num {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-align: right;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.bar {
  position: relative;
  height: 0.5rem;
  border-radius: 999px;
  background: rgba(10, 24, 38, 0.78);
  border: 1px solid var(--line);
  overflow: hidden;
}

.bar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 100%;
  border-radius: inherit;
  transition: width 0.14s linear, background-color 0.3s;
}

[data-kind="hull"] .bar-fill {
  background: linear-gradient(90deg, var(--mint-deep), var(--mint));
  box-shadow: var(--glow-mint);
}
[data-kind="hull"].is-hurt .bar-fill {
  background: linear-gradient(90deg, #b3512f, var(--gold));
}
[data-kind="hull"].is-critical .bar-fill {
  background: linear-gradient(90deg, #8f2a22, var(--danger));
  box-shadow: 0 0 16px rgba(255, 107, 94, 0.55);
  animation: pulse-bar 0.7s steps(2, end) infinite;
}
[data-kind="ballast"] .bar-fill {
  background: linear-gradient(90deg, #2f6f9c, #7fd4ff);
  box-shadow: 0 0 14px rgba(127, 212, 255, 0.3);
}
[data-kind="ballast"].is-critical .bar-fill {
  background: linear-gradient(90deg, #7a5a1e, var(--gold));
}

@keyframes pulse-bar {
  50% {
    opacity: 0.45;
  }
}

.gauge-tug {
  grid-template-columns: 3.1rem 1fr;
}
.tug-dot {
  height: 0.5rem;
  border-radius: 999px;
  background: rgba(10, 24, 38, 0.78);
  border: 1px solid var(--line);
}
.gauge-tug.is-hooked .tug-dot {
  background: linear-gradient(90deg, var(--gold-deep), var(--gold));
  box-shadow: var(--glow-gold);
}
.gauge-tug.is-anchor .tug-dot {
  background: linear-gradient(90deg, #4a3f8f, var(--violet));
}
#g-tug-num {
  display: none;
}
.tug-num-inline {
  display: none;
}

/* ---------- mission readout (top-right) ---------- */
.mission {
  position: absolute;
  top: max(env(safe-area-inset-top), 0.85rem);
  right: max(env(safe-area-inset-right), 0.85rem);
  text-align: right;
  min-width: 7rem;
}
.mission-tier {
  margin: 0;
  font-size: 0.56rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mint);
}
.mission-depth {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 5.5vw, 2rem);
  line-height: 1;
  font-weight: 600;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 20px rgba(127, 212, 255, 0.28);
}
.mission-depth small {
  font-size: 0.5em;
  color: var(--ink-soft);
  margin-left: 0.15em;
}
.mission-stats {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.mission-stats b {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0;
  color: var(--gold);
}

/* ---------- system buttons (top-centre) ---------- */
.sys-buttons {
  position: absolute;
  top: max(env(safe-area-inset-top), 0.85rem);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.6rem;
  pointer-events: auto;
  z-index: 5;
}
.sys {
  width: 2.75rem;
  height: 2.75rem;
  font-size: 0.85rem !important;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(9, 20, 32, 0.8);
  color: var(--ink-soft);
  font-size: 0.62rem;
  letter-spacing: 0.02em;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: color 0.18s, border-color 0.18s, background-color 0.18s;
}
.sys:hover,
.sys:focus-visible {
  color: var(--mint);
  border-color: var(--mint-deep);
  background: rgba(15, 40, 44, 0.86);
}
@media (max-width: 420px) {
  .gauges { width: 29vw; }
  .sys-buttons { gap: 0.4rem; }
  .sys { width: 2.6rem; height: 2.6rem; }
}
.sys[aria-pressed="true"] {
  color: var(--ink-dim);
}

/* ---------- joystick (bottom-left) ---------- */
.drive-pad {
  --dp: clamp(3.3rem, 15vw, 4.2rem);
  position: absolute;
  left: max(env(safe-area-inset-left), 0.7rem);
  bottom: max(env(safe-area-inset-bottom), 0.8rem);
  display: grid;
  grid-template-columns: repeat(3, var(--dp));
  grid-template-rows: repeat(2, var(--dp));
  grid-template-areas: ". up ." "left down right";
  gap: 0.35rem;
  padding: 0.5rem;
  pointer-events: auto;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}
.is-desk .drive-pad { display: none; }
.dp-btn {
  display: grid;
  place-items: center;
  border-radius: 1rem;
  border: 1px solid rgba(111, 242, 200, 0.35);
  background: radial-gradient(circle at 50% 35%, rgba(31, 156, 124, 0.22), rgba(6, 14, 24, 0.72) 75%);
  box-shadow: inset 0 0 18px rgba(111, 242, 200, 0.1), 0 6px 16px rgba(0, 0, 0, 0.45);
  color: rgba(166, 255, 224, 0.85);
  font-size: calc(var(--dp) * 0.36);
  transition: transform 0.08s, background 0.12s, box-shadow 0.12s;
}
.dp-up { grid-area: up; }
.dp-left { grid-area: left; }
.dp-down { grid-area: down; }
.dp-right { grid-area: right; }
.dp-up, .dp-down { color: rgba(255, 210, 140, 0.9); border-color: rgba(255, 201, 120, 0.35); }
.dp-btn.is-down {
  transform: scale(0.92);
  background: radial-gradient(circle at 50% 40%, rgba(111, 242, 200, 0.5), rgba(10, 40, 40, 0.85) 75%);
  box-shadow: 0 0 22px rgba(111, 242, 200, 0.45);
  color: #fff;
}
.stick-hint {
  position: absolute;
  left: 0.6rem;
  bottom: calc(100% + 0.1rem);
  white-space: nowrap;
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
  transition: opacity 0.4s;
}
.stick-hint.is-gone {
  opacity: 0;
}
.stick {
  position: absolute;
  width: 7.6rem;
  height: 7.6rem;
  border-radius: 50%;
  border: 1px solid rgba(111, 242, 200, 0.32);
  background:
    radial-gradient(circle at 50% 50%, rgba(31, 156, 124, 0.16), rgba(6, 14, 24, 0.5) 68%);
  box-shadow: inset 0 0 26px rgba(111, 242, 200, 0.12);
  transform: translate(-50%, -50%) scale(0.7);
  opacity: 0;
  transition: opacity 0.16s, transform 0.16s ease-out;
  pointer-events: none;
}
.stick.is-on {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.stick::before,
.stick::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  background: rgba(111, 242, 200, 0.16);
}
.stick::before {
  width: 1px;
  height: 46%;
}
.stick::after {
  height: 1px;
  width: 46%;
}
.stick-knob {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 3.1rem;
  height: 3.1rem;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle at 38% 32%, #a6ffe0, var(--mint-deep) 72%);
  border: 1px solid rgba(166, 255, 224, 0.7);
  box-shadow: 0 0 22px rgba(111, 242, 200, 0.5), 0 6px 16px rgba(0, 0, 0, 0.5);
}

/* ---------- radar + tether (bottom-right) ---------- */
.scan-cluster {
  position: absolute;
  right: max(env(safe-area-inset-right), 0.85rem);
  bottom: max(env(safe-area-inset-bottom), 0.85rem);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.6rem;
  pointer-events: none;
}
.radar {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(6, 14, 24, 0.72);
  padding: 0.3rem 0.3rem 0.1rem;
  box-shadow: var(--shadow);
}
#radar-cv {
  display: block;
  width: clamp(3.6rem, 15vw, 5.1rem);
  height: auto;
  aspect-ratio: 15 / 19;
}
.radar-label {
  position: absolute;
  bottom: 0.16rem;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.44rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.tether-btn {
  position: relative;
  width: clamp(4.4rem, 21vw, 5.6rem);
  height: clamp(4.4rem, 21vw, 5.6rem);
  border-radius: 50%;
  pointer-events: auto;
  touch-action: none;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 50% 38%, rgba(255, 201, 120, 0.24), rgba(8, 18, 30, 0.82) 70%);
  border: 1px solid rgba(255, 201, 120, 0.45);
  box-shadow: 0 0 26px rgba(255, 201, 120, 0.16), 0 8px 22px rgba(0, 0, 0, 0.5);
  transition: transform 0.1s, box-shadow 0.2s, border-color 0.2s;
  cursor: pointer;
}
.tether-btn-txt {
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--gold);
}
.tether-btn-ring {
  position: absolute;
  inset: 0.34rem;
  border-radius: 50%;
  border: 1px dashed rgba(255, 201, 120, 0.3);
  transition: border-color 0.2s;
}
.tether-btn:hover,
.tether-btn:focus-visible {
  border-color: var(--gold);
  box-shadow: 0 0 34px rgba(255, 201, 120, 0.3);
}
.tether-btn.is-down {
  transform: scale(0.93);
}
.tether-btn.is-live {
  background: radial-gradient(circle at 50% 38%, rgba(111, 242, 200, 0.28), rgba(8, 24, 26, 0.84) 70%);
  border-color: rgba(111, 242, 200, 0.6);
}
.tether-btn.is-live .tether-btn-txt {
  color: var(--mint);
}

/* ---------- transient banner ---------- */
.banner {
  position: absolute;
  left: 50%;
  top: 34%;
  transform: translate(-50%, -50%);
  margin: 0;
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(0.72rem, 3.4vw, 1rem);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--mint);
  text-shadow: 0 0 24px rgba(111, 242, 200, 0.5);
  opacity: 0;
  transition: opacity 0.35s, transform 0.35s ease-out;
  pointer-events: none;
  max-width: 90vw;
}
.banner.is-on {
  opacity: 1;
  transform: translate(-50%, -50%) translateY(-0.35rem);
}
.banner.is-warn {
  color: var(--gold);
  text-shadow: 0 0 24px rgba(255, 201, 120, 0.5);
}
.banner.is-bad {
  color: var(--danger);
  text-shadow: 0 0 24px rgba(255, 107, 94, 0.55);
}

/* damage flash */
.hud::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 55%, rgba(255, 60, 40, 0) 42%, rgba(255, 60, 40, 0.42) 100%);
  opacity: 0;
  transition: opacity 0.45s;
  pointer-events: none;
}
.hud.is-hit::after {
  opacity: 1;
  transition: opacity 0.05s;
}

@media (max-width: 400px) {
  .gauges {
    width: 8rem;
  }
  .mission-stats {
    gap: 0.5rem;
    font-size: 0.55rem;
  }
}
@media (max-height: 430px) {
  .radar {
    display: none;
  }
}

/* ---- revamp: abilities, combo, settings ---- */
.action-pad { display: flex; align-items: flex-end; gap: 10px; pointer-events: auto; }
.act-btn { position: relative; overflow: hidden; width: 62px; height: 62px; border-radius: 50%; border: 2px solid rgba(127,212,255,.5); background: rgba(8,24,36,.7); color: #cfeeff; font: 700 11px/1 system-ui, sans-serif; letter-spacing: .06em; touch-action: none; }
.act-btn span { position: relative; }
.act-btn.is-ready { border-color: #7fd4ff; box-shadow: 0 0 14px rgba(127,212,255,.45); }
.act-btn.is-down { transform: scale(.92); }
.act-cd { position: absolute; inset: 0; background: rgba(0,0,0,.55); transform-origin: bottom; transform: scaleY(0); }
.is-desk .act-btn { display: none; }
.ability-strip { position: absolute; left: 16px; bottom: 16px; display: flex; gap: 10px; pointer-events: none; }
.is-touch .ability-strip { display: none; }
.ab { display: flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 10px; background: rgba(6,18,28,.6); color: #cfeeff; font-size: 12px; }
.ab-bar { display: block; width: 48px; height: 4px; background: rgba(255,255,255,.15); border-radius: 2px; overflow: hidden; }
.ab-bar b { display: block; height: 100%; background: #7fd4ff; transform-origin: left; }
.combo { position: absolute; top: 22%; left: 50%; transform: translateX(-50%) scale(.6); opacity: 0; pointer-events: none; text-align: center; color: #ffc978; transition: opacity .3s, transform .3s; }
.combo b { display: block; font-size: 42px; text-shadow: 0 0 18px rgba(255,170,80,.7); }
.combo span { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; }
.combo.is-on { opacity: 1; transform: translateX(-50%) scale(1); }
.fps { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); margin: 0; font: 12px monospace; color: #9fe; pointer-events: none; }
.settings-panel .seg { display: flex; gap: 6px; border: 0; padding: 0; margin: 8px 0; flex-wrap: wrap; }
.settings-panel .seg legend { width: 100%; margin-bottom: 6px; }
.settings-panel .seg label span { display: inline-block; padding: 8px 14px; border-radius: 8px; border: 1px solid rgba(127,212,255,.4); cursor: pointer; }
.settings-panel .seg input { position: absolute; opacity: 0; }
.settings-panel .seg input:checked + span { background: #7fd4ff; color: #04121c; }
.toggles { display: grid; gap: 8px; margin: 12px 0; }
.tog { display: flex; gap: 10px; align-items: center; }
.is-desk .touch-only, .is-touch .desk-only { display: none; }
/* narrow phones: stack sonar/dash above the tether so the drive pad has room */
@media (max-width: 520px) {
  .drive-pad { --dp: clamp(2.8rem, 13vw, 3.6rem); gap: 0.3rem; padding: 0.3rem; }
  .action-pad { display: grid; grid-template-columns: auto auto; justify-items: center; gap: 8px; }
  .action-pad .tether-btn { grid-column: 1 / -1; justify-self: end; }
  .act-btn { width: 50px; height: 50px; font-size: 10px; }
}
.settings-open { margin-top: 10px; }