:root {
  color-scheme: dark;
  --ink: #041116;
  --ink-2: #071d24;
  --ink-3: #0b2a32;
  --hull: #d2c6a7;
  --foam: #c8f2e9;
  --muted: #7e9da2;
  --teal: #45d8c5;
  --teal-deep: #138578;
  --amber: #ffc04c;
  --orange: #ed7c3b;
  --rust: #a94b30;
  --danger: #f04f45;
  --panel: rgba(5, 20, 25, 0.74);
  --panel-edge: rgba(142, 207, 203, 0.24);
  --line: rgba(160, 221, 214, 0.16);
  --font-display: "Bahnschrift Condensed", "Arial Narrow", "Impact", "SimHei", sans-serif;
  --font-ui: "SimHei", "Heiti SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: "Cascadia Mono", "Consolas", "SimHei", "Microsoft YaHei", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #031015;
  color: var(--hull);
  font-family: var(--font-ui);
  user-select: none;
  -webkit-user-select: none;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.update-notice {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  left: 50%;
  z-index: 2000;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: calc(100vw - 24px);
  padding: 10px 12px 10px 16px;
  transform: translateX(-50%);
  border: 1px solid rgba(69, 216, 197, 0.55);
  background: rgba(4, 18, 23, 0.96);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.42);
  color: var(--foam);
  font: 15px/1.4 var(--font-ui);
  pointer-events: auto;
}

.update-notice button {
  flex: 0 0 auto;
  padding: 6px 12px;
  border: 1px solid var(--teal);
  background: rgba(69, 216, 197, 0.14);
  color: var(--foam);
  font: inherit;
}

#app {
  position: fixed;
  inset: 0;
  isolation: isolate;
  overflow: hidden;
}

#game-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  outline: none;
}

#screen-grade {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  background:
    radial-gradient(ellipse at 50% 45%, transparent 36%, rgba(0, 8, 12, 0.22) 78%, rgba(0, 4, 7, 0.5) 100%),
    linear-gradient(180deg, rgba(4, 17, 22, 0.08), transparent 30%, transparent 75%, rgba(3, 12, 16, 0.25));
  mix-blend-mode: multiply;
}

#screen-grade::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

#damage-flash,
#heat-flash,
#low-hp-vignette {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  opacity: 0;
  transition: opacity 180ms ease;
}

#damage-flash {
  background: radial-gradient(ellipse at center, transparent 35%, rgba(197, 28, 22, 0.52) 100%);
}

#damage-flash.active {
  opacity: 1;
  transition-duration: 55ms;
}

#heat-flash {
  background: radial-gradient(ellipse at center, rgba(255, 172, 46, 0.03) 25%, rgba(255, 104, 24, 0.34) 100%);
}

#heat-flash.active {
  opacity: 1;
  animation: heatPulse 1.4s ease-in-out infinite;
}

#low-hp-vignette {
  z-index: 1;
  background: radial-gradient(ellipse at center, transparent 48%, rgba(116, 7, 7, 0.32) 100%);
  animation: lowHp 2.4s ease-in-out infinite;
}

#low-hp-vignette.active {
  opacity: 1;
}

@keyframes heatPulse {
  0%,
  100% {
    opacity: 0.6;
  }
  50% {
    opacity: 0.95;
  }
}

@keyframes lowHp {
  0%,
  100% {
    opacity: 0.45;
  }
  50% {
    opacity: 0.75;
  }
}

#hud {
  position: absolute;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  padding: 18px 22px;
}

.hud-panel {
  background:
    linear-gradient(135deg, rgba(9, 33, 40, 0.9), rgba(3, 15, 20, 0.76)),
    repeating-linear-gradient(90deg, transparent 0, transparent 4px, rgba(255, 255, 255, 0.012) 5px);
  border: 1px solid var(--panel-edge);
  box-shadow: 0 12px 38px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(9px);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.hull-cluster {
  width: min(370px, 31vw);
  min-width: 285px;
  padding: 12px 15px 11px;
}

.hull-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 8px;
  margin-bottom: 7px;
  white-space: nowrap;
}

.hull-heading .eyebrow {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hull-sub {
  font-style: normal;
}

.hull-heading .numeric {
  flex: 0 0 auto;
  white-space: nowrap;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #7fa8aa;
}

.numeric {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--foam);
  letter-spacing: 0.04em;
}

.bar {
  position: relative;
  overflow: hidden;
  height: 8px;
  background: rgba(2, 9, 12, 0.8);
  border: 1px solid rgba(152, 222, 214, 0.12);
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.65);
}

.bar-fill {
  height: 100%;
  width: 100%;
  transform-origin: left center;
  transition: width 140ms linear;
  background: linear-gradient(90deg, #1c7e70, #57ddc8);
  box-shadow: 0 0 12px rgba(69, 216, 197, 0.4);
}

.bar-shine {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent 0 10px, rgba(0, 0, 0, 0.2) 10px 11px);
  pointer-events: none;
}

.bar-hull {
  height: 13px;
}

.bar-hull .bar-fill {
  background: linear-gradient(90deg, #98753d, #e5c879 40%, #8baf91);
}

.bar-hull .bar-fill.critical {
  background: linear-gradient(90deg, #7c1f18, #ee5e4e);
  animation: criticalBar 0.9s ease-in-out infinite;
}

@keyframes criticalBar {
  50% {
    filter: brightness(1.5);
  }
}

.chip-row {
  display: flex;
  gap: 6px;
  margin-top: 9px;
  flex-wrap: wrap;
}

.stat-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 3px 7px;
  border: 1px solid rgba(124, 190, 188, 0.15);
  background: rgba(8, 28, 33, 0.74);
  color: #90b9b9;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 5px), calc(100% - 5px) 100%, 0 100%);
}

.stat-chip b {
  color: var(--foam);
  font-weight: 600;
}

.level-cluster {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 2px;
  padding: 5px 13px 7px;
  min-width: 295px;
  flex: 1;
  max-width: 450px;
  background: linear-gradient(180deg, rgba(4, 16, 21, 0.42), transparent);
  border-bottom: 1px solid var(--line);
}

.level-orb {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 49px;
  height: 49px;
  flex-shrink: 0;
  border: 1px solid rgba(255, 192, 76, 0.5);
  border-radius: 50%;
  color: var(--amber);
  background: radial-gradient(circle at 50% 35%, rgba(255, 192, 76, 0.18), rgba(5, 17, 21, 0.92) 64%);
  box-shadow: 0 0 16px rgba(255, 192, 76, 0.12), inset 0 0 12px rgba(255, 192, 76, 0.08);
  font-family: var(--font-mono);
}

.level-orb span {
  font-size: 8px;
  letter-spacing: 0.16em;
}

.level-orb b {
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1;
}

.xp-wrap {
  flex: 1;
}

.xp-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: #89a9aa;
  margin-bottom: 5px;
}

.bar-xp {
  height: 5px;
}

.bar-xp .bar-fill {
  background: linear-gradient(90deg, #b07825, #ffd168);
  box-shadow: 0 0 12px rgba(255, 192, 76, 0.38);
}

.upgrade-ready {
  position: absolute;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  letter-spacing: 0.08em;
  animation: blinkSoft 1.8s ease-in-out infinite;
}

@keyframes blinkSoft {
  50% {
    opacity: 0.55;
  }
}

.radar-cluster {
  width: 204px;
  padding: 9px 10px 7px;
  flex-shrink: 0;
}

.radar-head,
.radar-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #88aeb0;
  letter-spacing: 0.08em;
}

#radar {
  display: block;
  width: 100%;
  height: 132px;
  margin: 4px 0;
}

.radar-foot {
  border-top: 1px solid var(--line);
  padding-top: 4px;
}

#threat-value {
  color: var(--danger);
}

.boss-panel {
  position: absolute;
  top: 113px;
  left: 50%;
  transform: translateX(-50%);
  width: min(500px, 50vw);
  background: linear-gradient(180deg, rgba(30, 8, 8, 0.84), rgba(6, 15, 18, 0.74));
  border: 1px solid rgba(219, 75, 61, 0.35);
  padding: 7px 12px 9px;
  backdrop-filter: blur(8px);
}

.boss-title {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: #efaca4;
  margin-bottom: 4px;
}

.bar-boss {
  height: 9px;
}

.bar-boss .bar-fill {
  background: linear-gradient(90deg, #781811, #ec5b45);
  box-shadow: 0 0 14px rgba(235, 74, 57, 0.5);
}

.crosshair {
  position: absolute;
  width: 42px;
  height: 42px;
  margin: -21px 0 0 -21px;
  pointer-events: none;
  transition: opacity 120ms;
  opacity: 0.86;
  left: 50%;
  top: 50%;
}

.crosshair.hot .ch-line,
.crosshair.hot .ch-dot {
  background: var(--danger);
  box-shadow: 0 0 8px rgba(240, 79, 69, 0.9);
}

.crosshair.reloading {
  opacity: 0.35;
}

.ch-dot {
  position: absolute;
  left: 19px;
  top: 19px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--foam);
  box-shadow: 0 0 5px rgba(200, 242, 233, 0.8);
}

.ch-line {
  position: absolute;
  background: rgba(209, 248, 241, 0.82);
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
}

.ch-n,
.ch-s {
  width: 1px;
  height: 8px;
  left: 20px;
}

.ch-e,
.ch-w {
  width: 8px;
  height: 1px;
  top: 20px;
}

.ch-n {
  top: 1px;
}
.ch-s {
  bottom: 1px;
}
.ch-e {
  right: 1px;
}
.ch-w {
  left: 1px;
}

.ch-label {
  position: absolute;
  top: 47px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.2em;
  color: rgba(197, 232, 227, 0.58);
}

.target-panel {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(27px, 29px);
  min-width: 178px;
  padding: 6px 9px;
  background: rgba(4, 16, 20, 0.73);
  border-left: 2px solid var(--danger);
  backdrop-filter: blur(5px);
}

.target-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #f4b3ac;
  margin-bottom: 4px;
}

#target-state {
  color: #9aaeb0;
  white-space: nowrap;
}

.bar-target {
  height: 4px;
}

.bar-target .bar-fill {
  background: linear-gradient(90deg, #a6291d, #f06a56);
}

#target-hp {
  display: block;
  text-align: right;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 8px;
  color: #c7a5a1;
}

.vitals {
  position: absolute;
  left: 22px;
  bottom: 22px;
  width: 240px;
  padding: 10px 12px 9px;
}

.vital-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 7px;
}

.vital-icon {
  width: 16px;
  text-align: center;
  color: #83b5b2;
  font-size: 13px;
}

.vital-main {
  flex: 1;
}

.vital-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #8eaeae;
  margin-bottom: 3px;
}

.vital-label b {
  color: var(--foam);
  font-weight: 500;
}

.bar-hunger,
.bar-thirst,
.bar-fuel {
  height: 5px;
}

.bar-hunger .bar-fill {
  background: linear-gradient(90deg, #8a5925, #e1a34f);
}

.bar-thirst .bar-fill {
  background: linear-gradient(90deg, #1e6685, #51c6df);
}

.bar-fuel .bar-fill {
  background: linear-gradient(90deg, #75671d, #d7c849);
}

.condition-row {
  display: flex;
  gap: 5px;
  min-height: 17px;
  margin-top: 9px;
  padding-top: 7px;
  border-top: 1px solid var(--line);
}

.condition {
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  border: 1px solid rgba(240, 79, 69, 0.35);
  color: #f4988f;
  background: rgba(90, 17, 14, 0.32);
}

#cond-pain {
  border-color: rgba(206, 146, 60, 0.45);
  color: #e5b270;
  background: rgba(90, 57, 14, 0.3);
}

#cond-regen {
  border-color: rgba(77, 204, 126, 0.42);
  color: #8fdfac;
  background: rgba(17, 80, 42, 0.32);
}

.heat-panel {
  position: absolute;
  right: 22px;
  bottom: 22px;
  width: 290px;
  padding: 10px 12px 11px;
  transition: border-color 200ms, box-shadow 200ms;
}

.heat-panel.awake {
  border-color: rgba(255, 140, 48, 0.75);
  box-shadow: 0 0 34px rgba(255, 99, 24, 0.25), inset 0 0 30px rgba(255, 89, 16, 0.08);
}

.heat-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#heat-state {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--amber);
}

.heat-ring-wrap {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-top: 7px;
}

.heat-ring {
  position: relative;
  flex-shrink: 0;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid rgba(255, 164, 64, 0.35);
  background: radial-gradient(circle at 50% 50%, rgba(255, 192, 76, 0.06), rgba(4, 15, 19, 0.9));
  box-shadow: inset 0 0 13px rgba(0, 0, 0, 0.7);
}

.heat-liquid {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 0%;
  background: linear-gradient(180deg, #ffc04c, #f05f22 65%, #8d2a11);
  box-shadow: 0 0 18px rgba(255, 110, 37, 0.65);
  transition: height 150ms linear;
}

.heat-liquid::after {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 100%;
  height: 6px;
  background: #ffd98c;
  filter: blur(2px);
}

.heat-ring span {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: #fff1d4;
  text-shadow: 0 1px 4px #000;
}

.heat-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.heat-copy strong {
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  font-size: 18px;
  font-weight: 500;
  color: #f1d2a2;
}

.heat-copy span {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.06em;
  color: #849b9c;
}

#heat-bonus {
  color: #b98855;
}

.loot-prompt {
  position: absolute;
  bottom: 146px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  background: rgba(4, 18, 22, 0.82);
  border: 1px solid rgba(255, 192, 76, 0.45);
  backdrop-filter: blur(7px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  font-family: var(--font-mono);
  font-size: 12px;
  color: #bdc9c8;
  animation: promptIn 160ms ease-out;
}

.loot-prompt b {
  color: var(--amber);
  font-weight: 600;
}

@keyframes promptIn {
  from {
    opacity: 0;
    transform: translate(-50%, 7px);
  }
}

.toast-rail {
  position: absolute;
  left: 22px;
  top: 155px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 310px;
}

.toast {
  padding: 7px 11px;
  background: linear-gradient(90deg, rgba(4, 19, 24, 0.88), rgba(4, 19, 24, 0.25));
  border-left: 2px solid var(--teal);
  font-family: var(--font-mono);
  font-size: 11px;
  color: #a7c2c2;
  letter-spacing: 0.03em;
  animation: toastIn 220ms ease-out;
  transition: opacity 350ms, transform 350ms;
}

.toast.warn {
  border-left-color: var(--amber);
  color: #d8bd92;
}

.toast.bad {
  border-left-color: var(--danger);
  color: #e1a09a;
}

.toast.good {
  border-left-color: #5ddf9a;
  color: #a9e4c2;
}

.toast.out {
  opacity: 0;
  transform: translateX(-7px);
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
}

.kill-feed {
  position: absolute;
  right: 22px;
  top: 252px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  width: 270px;
}

.kill-item {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  color: #9cb4b3;
  padding: 3px 7px;
  background: rgba(4, 17, 21, 0.58);
  border-right: 1px solid rgba(240, 79, 69, 0.45);
  animation: toastIn 180ms ease-out;
}

.kill-item b {
  color: var(--danger);
  font-weight: 500;
}

.control-hint {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 13px;
  flex-wrap: wrap;
  justify-content: center;
  width: min(680px, 50vw);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.04em;
  color: rgba(163, 194, 192, 0.5);
}

kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 15px;
  height: 15px;
  padding: 0 3px;
  margin-right: 2px;
  border: 1px solid rgba(159, 208, 203, 0.28);
  border-bottom-color: rgba(159, 208, 203, 0.42);
  background: rgba(11, 37, 42, 0.8);
  color: #b8d4d1;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
}

.ability-banner {
  position: absolute;
  top: 23%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 1px;
  filter: drop-shadow(0 6px 20px rgba(0, 0, 0, 0.55));
  animation: abilityIn 280ms ease-out;
}

.ability-banner strong {
  font-family: var(--font-display);
  font-size: clamp(41px, 5.3vw, 79px);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 0.95;
  color: #ffe0a5;
  text-shadow: 0 0 25px rgba(255, 130, 36, 0.75), 0 0 70px rgba(255, 78, 15, 0.4);
}

.ability-banner span:last-child {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: #f3bd76;
}

.ability-banner .eyebrow {
  color: #f49e4b;
}

@keyframes abilityIn {
  from {
    opacity: 0;
    transform: translate(-50%, 12px) scale(0.96);
  }
}

.hud-buttons {
  position: absolute;
  right: 22px;
  top: 214px;
  display: flex;
  gap: 5px;
  pointer-events: auto;
}

.icon-btn {
  width: 27px;
  height: 27px;
  border: 1px solid rgba(156, 214, 208, 0.24);
  background: rgba(4, 18, 22, 0.7);
  color: #9fc3c0;
  font-family: var(--font-mono);
  font-size: 12px;
  transition: 150ms;
}

.icon-btn:hover {
  border-color: var(--teal);
  color: var(--teal);
  background: rgba(11, 44, 47, 0.8);
}

/* ------------------------------- screens ------------------------------- */

.screen {
  position: absolute;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 50% 45%, rgba(3, 16, 21, 0.14), rgba(2, 9, 13, 0.72));
}

.overlay-screen {
  background: rgba(2, 9, 13, 0.68);
  backdrop-filter: blur(8px) saturate(0.8);
  animation: overlayIn 220ms ease-out;
}

@keyframes overlayIn {
  from {
    opacity: 0;
  }
}

.start-screen {
  align-items: stretch;
  justify-content: flex-start;
  background:
    linear-gradient(90deg, rgba(2, 11, 15, 0.91) 0%, rgba(2, 12, 16, 0.72) 38%, rgba(2, 12, 16, 0.08) 72%, rgba(2, 10, 13, 0.2) 100%),
    linear-gradient(0deg, rgba(2, 9, 13, 0.8), transparent 32%);
  overflow: hidden;
}

.start-noise {
  position: absolute;
  inset: 0;
  opacity: 0.14;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(130, 207, 197, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(130, 207, 197, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(90deg, black, transparent 70%);
}

.start-frame {
  position: relative;
  z-index: 2;
  align-self: center;
  margin-left: clamp(28px, 7vw, 128px);
  margin-top: 2vh;
  width: min(680px, 47vw);
  padding: 28px 0 0;
}

.start-frame::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 0;
  width: 2px;
  height: 122px;
  background: linear-gradient(180deg, var(--teal), transparent);
  box-shadow: 0 0 14px rgba(69, 216, 197, 0.25);
}

.start-kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: #82a6a7;
  margin-bottom: 12px;
}

.live-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--danger);
  box-shadow: 0 0 7px var(--danger);
  animation: blinkSoft 1.6s infinite;
}

.game-title {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.14em;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(89px, 13.8vw, 202px);
  line-height: 0.72;
  letter-spacing: -0.035em;
  color: #d9d1b8;
  text-shadow: 0 8px 35px rgba(0, 0, 0, 0.72);
}

.game-title > span:first-child {
  position: relative;
}

.game-title > span:first-child::after {
  content: "";
  position: absolute;
  left: 0.05em;
  right: 0.03em;
  bottom: -0.12em;
  height: 0.05em;
  background: linear-gradient(90deg, var(--rust), transparent);
}

.title-surge {
  color: transparent;
  -webkit-text-stroke: 1.5px #76d7c9;
  text-shadow: 0 0 38px rgba(69, 216, 197, 0.17);
  position: relative;
}

.title-surge::after {
  content: "";
  position: absolute;
  inset: 15% -2% 8% 1%;
  background: linear-gradient(180deg, transparent 35%, rgba(16, 86, 85, 0.2) 50%, transparent 62%);
  pointer-events: none;
}

.start-subtitle {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 35px);
  font-weight: 300;
  letter-spacing: 0.62em;
  color: #df8c5c;
}

.start-copy {
  margin: 24px 0 23px;
  font-size: 14px;
  line-height: 1.9;
  color: #91aaa9;
  letter-spacing: 0.04em;
}

.start-actions {
  display: flex;
  align-items: stretch;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  position: relative;
  border: 1px solid rgba(163, 217, 210, 0.2);
  background: rgba(6, 24, 29, 0.8);
  color: #c9dcda;
  padding: 12px 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  transition: 160ms ease;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}

.btn:hover {
  border-color: rgba(96, 230, 211, 0.6);
  background: rgba(10, 41, 45, 0.95);
  color: #e5f4ef;
}

.btn-primary {
  border: none;
  color: #031313;
  background: linear-gradient(100deg, #49d4c1, #9de9d9);
  padding: 14px 27px;
  min-width: 222px;
  font-weight: 700;
  box-shadow: 0 0 0 1px rgba(179, 255, 241, 0.28), 0 9px 30px rgba(32, 183, 164, 0.18);
}

.btn-primary span {
  margin-left: 20px;
  font-size: 18px;
}

.btn-primary:hover {
  background: linear-gradient(100deg, #65e6d3, #bdfff0);
  color: #021414;
  box-shadow: 0 0 0 1px rgba(179, 255, 241, 0.45), 0 12px 38px rgba(32, 183, 164, 0.3);
}

.btn-ghost {
  background: rgba(5, 18, 23, 0.68);
}

.save-meta {
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: #6e8f90;
}

.start-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 43px;
  border-top: 1px solid rgba(137, 197, 190, 0.16);
  border-bottom: 1px solid rgba(137, 197, 190, 0.1);
  background: rgba(137, 197, 190, 0.08);
}

.start-features > div {
  padding: 13px 12px 12px;
  background: rgba(3, 15, 19, 0.86);
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.start-features b {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--rust);
  font-weight: 400;
}

.start-features span {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.04em;
  color: #c2c7b6;
}

.start-features small {
  font-family: var(--font-mono);
  font-size: 8px;
  color: #647f80;
  letter-spacing: 0.02em;
}

.start-controls {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 17px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #779393;
}

.start-footer {
  position: absolute;
  bottom: 17px;
  left: clamp(28px, 7vw, 128px);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.17em;
  color: rgba(129, 165, 164, 0.37);
}

.overlay-frame {
  position: relative;
  background:
    linear-gradient(145deg, rgba(9, 32, 38, 0.97), rgba(3, 14, 18, 0.97)),
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(255, 255, 255, 0.012) 3px 4px);
  border: 1px solid rgba(146, 214, 207, 0.28);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  padding: clamp(24px, 3.2vw, 48px);
  max-height: 92vh;
  overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(69, 216, 197, 0.3) transparent;
  animation: frameIn 240ms cubic-bezier(0.21, 0.9, 0.34, 1);
}

.overlay-frame::before,
.overlay-frame::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border-color: rgba(91, 218, 200, 0.5);
  border-style: solid;
  pointer-events: none;
}

.overlay-frame::before {
  top: -1px;
  left: -1px;
  border-width: 1px 0 0 1px;
}

.overlay-frame::after {
  right: -1px;
  bottom: -1px;
  border-width: 0 1px 1px 0;
}

@keyframes frameIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.985);
  }
}

.overlay-frame h2 {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: clamp(41px, 4.8vw, 67px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.04em;
  color: #d9d7c5;
}

.overlay-copy {
  font-size: 13px;
  color: #8ca5a5;
  line-height: 1.7;
  letter-spacing: 0.03em;
}

.overlay-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}

.upgrade-frame {
  width: min(1000px, 92vw);
}

.points-line {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin: 17px 0 12px;
  padding: 5px 11px;
  border: 1px solid rgba(255, 192, 76, 0.24);
  background: rgba(255, 192, 76, 0.055);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #c0aa84;
}

.points-line b {
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 1;
  color: var(--amber);
}

.upgrade-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.upgrade-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 285px;
  padding: 14px 13px 12px;
  border: 1px solid rgba(130, 191, 187, 0.17);
  background: linear-gradient(165deg, rgba(13, 42, 47, 0.75), rgba(4, 17, 21, 0.9));
  transition: 180ms ease;
  text-align: left;
  color: inherit;
  overflow: hidden;
}

.upgrade-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent, var(--teal)), transparent);
  opacity: 0.55;
}

.upgrade-card:hover:not(:disabled) {
  transform: translateY(-3px);
  border-color: rgba(91, 218, 200, 0.45);
  background: linear-gradient(165deg, rgba(17, 55, 60, 0.9), rgba(5, 22, 27, 0.95));
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.upgrade-card:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.upgrade-card.maxed {
  opacity: 0.55;
}

.upgrade-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 10px;
  border: 1px solid color-mix(in srgb, var(--accent, var(--teal)) 48%, transparent);
  color: var(--accent, var(--teal));
  font-family: var(--font-display);
  font-size: 23px;
  background: color-mix(in srgb, var(--accent, var(--teal)) 7%, transparent);
}

.upgrade-card h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.08em;
  font-weight: 400;
  color: #d4d2c0;
}

.upgrade-card p {
  margin: 0;
  min-height: 36px;
  font-size: 11px;
  line-height: 1.55;
  color: #819e9e;
}

.upgrade-level {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #7f9b9b;
  border-bottom: 1px solid var(--line);
  padding-bottom: 7px;
}

.pip-row {
  display: flex;
  gap: 3px;
  margin: 8px 0 auto;
  flex-wrap: wrap;
}

.pip {
  width: 12px;
  height: 4px;
  background: rgba(130, 191, 187, 0.14);
}

.pip.on {
  background: var(--accent, var(--teal));
  box-shadow: 0 0 5px color-mix(in srgb, var(--accent, var(--teal)) 50%, transparent);
}

.upgrade-next {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #d9c28e;
  line-height: 1.5;
}

.upgrade-take {
  margin-top: 11px;
  padding: 7px 8px;
  border: 1px solid color-mix(in srgb, var(--accent, var(--teal)) 42%, transparent);
  background: color-mix(in srgb, var(--accent, var(--teal)) 7%, transparent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--accent, var(--teal));
  transition: 150ms;
}

.upgrade-card:hover:not(:disabled) .upgrade-take {
  background: color-mix(in srgb, var(--accent, var(--teal)) 17%, transparent);
}

.inventory-frame {
  width: min(1060px, 94vw);
}

.overlay-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.close-btn {
  width: 34px;
  height: 34px;
  border: 1px solid rgba(150, 207, 201, 0.2);
  background: transparent;
  color: #95b1b1;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
}

.close-btn:hover {
  color: var(--danger);
  border-color: var(--danger);
}

.inventory-layout {
  display: grid;
  grid-template-columns: 1fr 245px;
  gap: 20px;
  margin-top: 21px;
}

.inventory-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: #749292;
  margin-bottom: 9px;
}

.inventory-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}

.inv-slot {
  position: relative;
  aspect-ratio: 1;
  border: 1px solid rgba(132, 190, 186, 0.13);
  background:
    linear-gradient(145deg, rgba(13, 42, 46, 0.42), rgba(4, 16, 20, 0.54)),
    repeating-linear-gradient(45deg, transparent 0 8px, rgba(255, 255, 255, 0.012) 8px 9px);
  color: inherit;
  text-align: left;
  padding: 7px;
  transition: 140ms;
  overflow: hidden;
}

.inv-slot.populated {
  cursor: pointer;
}

.inv-slot.populated:hover {
  border-color: rgba(255, 192, 76, 0.55);
  background: linear-gradient(145deg, rgba(38, 55, 42, 0.62), rgba(8, 22, 24, 0.8));
}

.inv-slot-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--item-color, #b3ccc7);
  border: 1px solid color-mix(in srgb, var(--item-color, #b3ccc7) 32%, transparent);
  background: color-mix(in srgb, var(--item-color, #b3ccc7) 7%, transparent);
  margin-bottom: 6px;
}

.inv-slot-name {
  font-size: 10px;
  color: #b5c7c3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.inv-slot-action {
  font-family: var(--font-mono);
  font-size: 7px;
  color: #6e8c8c;
  margin-top: 2px;
  letter-spacing: 0.04em;
}

.inv-slot-count {
  position: absolute;
  right: 5px;
  top: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #e6d8ac;
}

.inventory-empty {
  padding: 25px;
  border: 1px dashed rgba(129, 187, 183, 0.19);
  font-size: 12px;
  line-height: 1.8;
  color: #6f8b8b;
  text-align: center;
}

.ship-stats {
  border-left: 1px solid var(--line);
  padding-left: 19px;
}

.stat-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px solid rgba(129, 187, 183, 0.09);
  font-family: var(--font-mono);
  font-size: 11px;
  color: #849f9f;
}

.stat-line b {
  font-weight: 500;
  color: #d4ceb9;
}

.stat-divider {
  height: 13px;
}

.quick-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  margin-top: 8px;
}

.quick-grid span {
  font-family: var(--font-mono);
  font-size: 10px;
  color: #7e9998;
}

.pause-frame {
  width: min(520px, 91vw);
}

.pause-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 20px;
}

.menu-btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 13px;
  border: 1px solid rgba(137, 196, 190, 0.17);
  background: rgba(8, 28, 33, 0.66);
  color: #b7c9c5;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-align: left;
  transition: 150ms;
}

.menu-btn:hover {
  border-color: rgba(94, 222, 203, 0.45);
  background: rgba(13, 43, 46, 0.8);
  color: #e1ece7;
}

.menu-btn span {
  color: var(--teal);
}

.menu-btn.danger {
  color: #d58c84;
}

.menu-btn.danger:hover {
  border-color: rgba(240, 79, 69, 0.48);
  background: rgba(67, 19, 17, 0.48);
}

.settings {
  margin-top: 19px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.settings label {
  display: grid;
  grid-template-columns: 110px 1fr 43px;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #7f9d9d;
}

.settings label b {
  font-weight: 400;
  color: #c4c1af;
  text-align: right;
}

input[type="range"] {
  appearance: none;
  -webkit-appearance: none;
  height: 3px;
  background: rgba(130, 191, 187, 0.2);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 9px;
  height: 13px;
  background: var(--teal);
  border: none;
  cursor: pointer;
}

select {
  width: 100%;
  border: 1px solid rgba(130, 191, 187, 0.2);
  background: rgba(5, 20, 25, 0.9);
  color: #adbfbb;
  padding: 4px 6px;
  font-family: var(--font-mono);
  font-size: 10px;
}

.gameover-frame {
  width: min(550px, 91vw);
  text-align: center;
}

.gameover-frame::before,
.gameover-frame::after {
  border-color: rgba(240, 79, 69, 0.55);
}

.gameover-frame h2 {
  font-size: clamp(67px, 8.4vw, 110px);
  color: #e1d3bc;
  margin-top: 8px;
}

.danger-text {
  color: var(--danger);
}

.run-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(130, 185, 180, 0.12);
  margin-top: 25px;
}

.run-stats > div {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 13px 7px;
  background: rgba(4, 16, 20, 0.92);
}

.run-stats span {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  color: #779291;
}

.run-stats b {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 400;
  color: var(--amber);
}

.gameover-frame .overlay-actions {
  justify-content: center;
}

.help-frame {
  width: min(900px, 93vw);
}

.help-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  margin-top: 22px;
}

.help-card {
  padding: 13px 14px;
  border: 1px solid rgba(132, 190, 186, 0.13);
  background: rgba(5, 21, 26, 0.5);
}

.help-card > b {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 400;
  color: #d6cbb0;
  letter-spacing: 0.06em;
}

.help-card p {
  margin: 7px 0 0;
  font-size: 11px;
  line-height: 1.8;
  color: #839f9e;
}

.help-card p b {
  color: var(--amber);
  font-weight: 500;
}

.damage-number {
  position: absolute;
  z-index: 12;
  pointer-events: none;
  transform: translate(-50%, 0);
  font-family: var(--font-display);
  font-size: 23px;
  letter-spacing: 0.03em;
  color: #ffdba1;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.9), 0 0 9px rgba(255, 160, 65, 0.35);
  animation: damageFloat 820ms cubic-bezier(0.14, 0.8, 0.28, 1) forwards;
}

.damage-number.crit {
  font-size: 36px;
  color: #fff0a6;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.9), 0 0 16px rgba(255, 126, 35, 0.9);
}

@keyframes damageFloat {
  0% {
    opacity: 0;
    transform: translate(-50%, 6px) scale(0.8);
  }
  14% {
    opacity: 1;
    transform: translate(-50%, 0) scale(1.08);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -46px) scale(0.92);
  }
}

.boot-error {
  position: absolute;
  z-index: 100;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
  background: #041116;
  color: #df8d82;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-wrap;
}

@media (max-width: 1080px) {
  .hull-cluster {
    width: 290px;
    min-width: 0;
  }
  .level-cluster {
    min-width: 230px;
  }
  .radar-cluster {
    width: 170px;
  }
  #radar {
    height: 108px;
  }
  .hud-buttons {
    top: 189px;
  }
  .upgrade-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .upgrade-card {
    min-height: 240px;
  }
}

@media (max-width: 900px) {
  .inventory-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (max-width: 820px) {
  #hud {
    padding: 10px;
  }
  .hull-cluster {
    width: 220px;
  }
  .chip-row {
    display: none;
  }
  .level-cluster {
    min-width: 170px;
    max-width: 270px;
  }
  .radar-cluster {
    width: 150px;
  }
  #radar {
    height: 92px;
  }
  .hull-sub {
    display: none;
  }
  .radar-head,
  .radar-foot {
    font-size: 8px;
  }
  .kill-feed,
  .hud-buttons {
    display: none;
  }
  .vitals {
    width: 190px;
    left: 10px;
    bottom: 10px;
  }
  .heat-panel {
    width: 220px;
    right: 10px;
    bottom: 10px;
  }
  .heat-copy span {
    display: none;
  }
  .control-hint {
    display: none;
  }
  .start-frame {
    width: 82vw;
    margin-left: 7vw;
  }
  .start-features {
    grid-template-columns: 1fr 1fr;
  }
  .start-controls {
    display: none;
  }
  .start-footer {
    left: 7vw;
  }
  .help-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .radar-cluster {
    display: none;
  }
  .level-cluster {
    position: absolute;
    left: 50%;
    top: 96px;
    transform: translateX(-50%);
    width: 198px;
    background: rgba(4, 16, 21, 0.8);
    border: 1px solid var(--line);
    padding: 6px 9px;
  }
  .boss-panel {
    top: 168px;
  }
  .upgrade-grid {
    grid-template-columns: 1fr 1fr;
  }
  .inventory-layout {
    grid-template-columns: 1fr;
  }
  .ship-stats {
    border-left: none;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 12px;
  }
}

@media (max-width: 480px) {
  .upgrade-grid {
    grid-template-columns: 1fr;
  }
  .inventory-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .upgrade-card {
    min-height: 0;
  }
}

@media (max-height: 760px) {
  .overlay-frame {
    padding: 22px 26px;
  }
  .overlay-frame h2 {
    font-size: clamp(36px, 4.1vw, 53px);
  }
  .points-line {
    margin: 10px 0 9px;
  }
  .upgrade-card {
    min-height: 0;
    padding: 10px 11px 9px;
  }
  .upgrade-icon {
    width: 30px;
    height: 30px;
    margin-bottom: 6px;
    font-size: 19px;
  }
  .upgrade-card h3 {
    font-size: 24px;
  }
  .upgrade-card p {
    min-height: 0;
  }
  .upgrade-level {
    margin-top: 7px;
    padding-bottom: 5px;
  }
  .pip-row {
    margin: 6px 0 auto;
  }
  .upgrade-next {
    margin-top: 6px;
  }
  .upgrade-take {
    margin-top: 6px;
    padding: 5px 7px;
  }
}

/* ----------------------- v2.0 Enhancements & Tactical UI ----------------------- */

.xp-subrow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 5px;
  min-height: 16px;
}

.passive-timer {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: #79b8b0;
}

.upgrade-ready {
  position: static;
  margin-top: 0;
  padding: 2px 7px;
  border: 1px solid rgba(255, 192, 76, 0.45);
  background: rgba(255, 192, 76, 0.14);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  animation: blinkSoft 1.8s ease-in-out infinite;
}

.tactical-bar {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 6px 10px;
  pointer-events: auto;
  flex-wrap: wrap;
}

.tac-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 9px;
  border: 1px solid rgba(135, 196, 190, 0.2);
  background: rgba(5, 22, 27, 0.78);
  color: #8eb2b0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  transition: 150ms ease;
}

.tac-btn:hover {
  border-color: rgba(69, 216, 197, 0.55);
  color: #dff6f2;
  background: rgba(11, 41, 46, 0.9);
}

.tac-btn.active {
  border-color: rgba(69, 216, 197, 0.65);
  background: rgba(14, 58, 56, 0.85);
  color: var(--foam);
  box-shadow: inset 0 0 10px rgba(69, 216, 197, 0.15);
}

.tac-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4e6b6d;
  transition: 150ms ease;
}

.tac-btn.active .tac-dot {
  background: var(--teal);
  box-shadow: 0 0 7px var(--teal);
}

.upgrade-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.upgrade-card {
  min-height: 230px;
}

.txt-modal-frame {
  width: min(680px, 92vw);
}

.txt-save-textarea {
  width: 100%;
  margin-top: 12px;
  padding: 12px;
  border: 1px solid rgba(132, 196, 190, 0.28);
  background: rgba(3, 13, 17, 0.92);
  color: #c8f2e9;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.55;
  resize: vertical;
  outline: none;
  user-select: text;
  -webkit-user-select: text;
}

.txt-save-textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 14px rgba(69, 216, 197, 0.18);
}

@media (max-width: 820px) {
  .tactical-bar {
    gap: 4px;
    padding: 4px 6px;
  }
  .tac-btn {
    padding: 4px 6px;
    font-size: 8px;
  }
}


.left-menu-stack {
  position: absolute;
  left: 16px;
  top: 50%;
  z-index: 12;
  width: min(220px, calc(100vw - 32px));
  display: grid;
  gap: 8px;
  pointer-events: auto;
  transform: translateY(-50%);
}

.left-menu-btn {
  appearance: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  color: var(--foam);
  background: rgba(4, 18, 23, 0.94);
  border: 1px solid var(--panel-edge);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  padding: 12px 14px;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 15px;
  text-align: left;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.left-menu-btn:hover {
  border-color: rgba(91, 218, 200, 0.5);
  background: rgba(10, 38, 42, 0.97);
  transform: translateX(2px);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.42);
}

.left-menu-btn:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.left-menu-btn kbd {
  color: #8ca5a5;
}

@media (max-width: 700px) {
  .left-menu-stack { left: 8px; width: min(190px, calc(100vw - 16px)); }
  .left-menu-btn { padding: 10px 12px; font-size: 13px; }
}

/* ───────── v2.1 gameplay HUD: waves, score, combo, boost/salvo dock, hit marker ───────── */

.wave-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: #c3dcd8;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

.wave-value.surge {
  color: var(--danger);
  text-shadow: 0 0 8px rgba(240, 79, 69, 0.55);
}

.score-wrap b {
  color: var(--amber);
  font-weight: 500;
  font-size: 12px;
  margin-left: 4px;
}

.action-dock {
  position: absolute;
  bottom: 52px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 16px;
  padding: 8px 16px 9px;
  width: min(430px, 44vw);
}

.dock-item {
  flex: 1;
  min-width: 0;
}

.dock-head {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #a7c2c2;
  white-space: nowrap;
}

.dock-head b {
  margin-left: auto;
  font-weight: 500;
  color: #5ddf9a;
}

.dock-item.cooling .dock-head b {
  color: #8fa5a4;
}

.bar-boost .bar-fill {
  background: linear-gradient(90deg, #1f6f98, #5cd2ff);
  box-shadow: 0 0 12px rgba(92, 210, 255, 0.45);
  transition: none;
}

#dock-boost.active .bar-boost .bar-fill {
  background: linear-gradient(90deg, #3aa6ff, #d8f6ff);
  box-shadow: 0 0 16px rgba(160, 230, 255, 0.85);
}

#dock-boost.depleted .bar-boost .bar-fill {
  background: linear-gradient(90deg, #4b5a62, #7d8e95);
  box-shadow: none;
}

.bar-salvo .bar-fill {
  background: linear-gradient(90deg, #9b5a1c, #ffc04c);
  box-shadow: 0 0 12px rgba(255, 192, 76, 0.4);
  transition: none;
}

.dock-item.ready-flash {
  animation: dockReady 420ms ease-out;
}

@keyframes dockReady {
  0% { filter: brightness(2.2); }
  100% { filter: brightness(1); }
}

.combo-meter {
  position: absolute;
  right: 26px;
  top: 50%;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  pointer-events: none;
  filter: drop-shadow(0 4px 14px rgba(0, 0, 0, 0.5));
}

.combo-count {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.combo-count b {
  font-family: var(--font-display);
  font-size: 54px;
  font-weight: 400;
  line-height: 0.9;
  color: #ffe0a5;
  text-shadow: 0 0 18px rgba(255, 140, 40, 0.7);
}

.combo-count i {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: #f3bd76;
}

.combo-mult {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.combo-timer {
  width: 120px;
  height: 3px;
  background: rgba(255, 192, 76, 0.18);
  overflow: hidden;
}

.combo-timer div {
  height: 100%;
  width: 100%;
  background: var(--amber);
  box-shadow: 0 0 8px rgba(255, 192, 76, 0.8);
}

.combo-meter.bump .combo-count b {
  animation: comboBump 260ms ease-out;
}

@keyframes comboBump {
  0% { transform: scale(1.45); color: #fff; }
  100% { transform: scale(1); }
}

.ch-hit {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.ch-hit i {
  position: absolute;
  left: 20px;
  top: 9px;
  width: 2px;
  height: 8px;
  background: #fff;
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.9);
  transform-origin: 1px 12px;
}

.ch-hit i:nth-child(1) { transform: rotate(45deg); }
.ch-hit i:nth-child(2) { transform: rotate(135deg); }
.ch-hit i:nth-child(3) { transform: rotate(225deg); }
.ch-hit i:nth-child(4) { transform: rotate(315deg); }

.ch-hit.show {
  animation: hitMarker 160ms ease-out;
}

.ch-hit.kill i {
  background: var(--danger);
  box-shadow: 0 0 8px rgba(240, 79, 69, 1);
}

.ch-hit.kill.show {
  animation: hitMarkerKill 320ms ease-out;
}

@keyframes hitMarker {
  0% { opacity: 1; transform: scale(0.75); }
  100% { opacity: 0; transform: scale(1.1); }
}

@keyframes hitMarkerKill {
  0% { opacity: 1; transform: scale(0.7); }
  60% { opacity: 1; transform: scale(1.25); }
  100% { opacity: 0; transform: scale(1.35); }
}

.wave-banner {
  top: 30%;
}

.wave-banner strong {
  color: #ffd2c4;
  text-shadow: 0 0 25px rgba(240, 79, 69, 0.8), 0 0 70px rgba(200, 30, 20, 0.45);
}

.wave-banner .eyebrow {
  color: #f06a5a;
}

.wave-banner.cleared strong {
  color: #c8f7de;
  text-shadow: 0 0 25px rgba(93, 223, 154, 0.75), 0 0 70px rgba(30, 160, 100, 0.4);
}

.wave-banner.cleared .eyebrow,
.wave-banner.cleared span:last-child {
  color: #8fe6b6;
}

.wave-banner.combo strong {
  font-size: clamp(30px, 3.6vw, 52px);
}

.run-stats {
  grid-template-columns: repeat(3, 1fr);
}

.go-score {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  margin-top: 16px;
}

.go-score span {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: #779291;
}

.go-score b {
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 400;
  line-height: 1;
  color: #ffe0a5;
  text-shadow: 0 0 22px rgba(255, 150, 50, 0.5);
}

.go-score em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #a7c2c2;
}

.go-score em.record {
  color: #5ddf9a;
  text-shadow: 0 0 10px rgba(93, 223, 154, 0.6);
}

@media (max-width: 820px) {
  .action-dock {
    width: min(360px, 70vw);
    bottom: 52px;
  }

  .combo-count b {
    font-size: 38px;
  }
}