:root {
  --bg: #070a0e;
  --amber: #e0b23c;
  --amber-dim: #a37f27;
  --steel: #7f9bb3;
  --steel-dim: #43596c;
  --danger: #e0442b;
  --good: #54e08a;
  --ink: #dfe8f0;
  --ink-dim: #75828d;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

body {
  position: relative;
}

#game {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: none;
  background: #05070a;
}

/* ============ HUD ============ */

#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  transition: opacity 260ms ease, visibility 260ms ease;
}

#hud.inactive {
  opacity: 0;
  visibility: hidden;
}

#hud::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.018) 0px,
    rgba(255, 255, 255, 0.018) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
  opacity: 0.6;
  pointer-events: none;
}

#vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at center,
    rgba(0, 0, 0, 0) 42%,
    rgba(40, 0, 0, 0.35) 78%,
    rgba(90, 6, 0, 0.75) 100%
  );
  opacity: 0.16;
  transition: opacity 180ms linear;
}

#damage-dir {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 340px;
  height: 340px;
  margin: -170px 0 0 -170px;
  opacity: 0;
  transition: opacity 60ms linear;
}

#damage-dir::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: 150px;
  height: 54px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at 50% 100%, rgba(255, 58, 30, 0.9), rgba(255, 40, 20, 0) 72%);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  filter: blur(1px);
}

/* crosshair */
#crosshair {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  --gap: 6px;
}

#crosshair span {
  position: absolute;
  background: rgba(232, 242, 255, 0.92);
  box-shadow: 0 0 3px rgba(0, 0, 0, 0.9);
  border-radius: 1px;
}

#crosshair .top,
#crosshair .bottom {
  width: 2px;
  height: 9px;
  left: -1px;
}

#crosshair .left,
#crosshair .right {
  height: 2px;
  width: 9px;
  top: -1px;
}

#crosshair .top {
  bottom: var(--gap);
}
#crosshair .bottom {
  top: var(--gap);
}
#crosshair .left {
  right: var(--gap);
}
#crosshair .right {
  left: var(--gap);
}

/* hit marker */
#hitmarker {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 26px;
  height: 26px;
  margin: -13px 0 0 -13px;
  opacity: 0;
  transition: opacity 70ms linear;
}

#hitmarker span {
  position: absolute;
  width: 9px;
  height: 2px;
  background: #f2f7ff;
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
}

#hitmarker span:nth-child(1) {
  left: 0;
  top: 4px;
  transform: rotate(45deg);
}
#hitmarker span:nth-child(2) {
  right: 0;
  top: 4px;
  transform: rotate(-45deg);
}
#hitmarker span:nth-child(3) {
  left: 0;
  bottom: 4px;
  transform: rotate(-45deg);
}
#hitmarker span:nth-child(4) {
  right: 0;
  bottom: 4px;
  transform: rotate(45deg);
}

#hitmarker.kill span {
  background: #ff4530;
  box-shadow: 0 0 6px rgba(255, 50, 25, 0.85);
}

/* minimap */
#minimap-wrap {
  position: absolute;
  top: 18px;
  left: 18px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 2px solid rgba(110, 148, 175, 0.45);
  background: radial-gradient(circle at 50% 40%, rgba(20, 30, 40, 0.9), rgba(5, 8, 11, 0.95));
  box-shadow: 0 0 24px rgba(0, 0, 0, 0.75), inset 0 0 22px rgba(0, 0, 0, 0.8);
  overflow: hidden;
}

#minimap {
  display: block;
  width: 160px;
  height: 160px;
}

.map-label {
  position: absolute;
  bottom: 6px;
  left: 0;
  width: 100%;
  text-align: center;
  font-size: 8px;
  letter-spacing: 0.22em;
  color: rgba(140, 175, 200, 0.55);
}

/* top center */
#top-center {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
}

#wave-label {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--ink);
  text-shadow: 0 0 18px rgba(120, 180, 230, 0.35), 0 2px 0 rgba(0, 0, 0, 0.8);
}

#enemies-left {
  margin-top: 5px;
  font-size: 10px;
  letter-spacing: 0.26em;
  color: var(--danger);
  text-shadow: 0 0 10px rgba(230, 50, 25, 0.5);
}

#enemies-left.clear {
  color: var(--good);
  text-shadow: 0 0 10px rgba(84, 224, 138, 0.4);
}

/* top right */
#top-right {
  position: absolute;
  top: 18px;
  right: 22px;
  text-align: right;
}

.stat-label {
  font-size: 9px;
  letter-spacing: 0.3em;
  color: var(--ink-dim);
}

#score-label {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.05;
  color: var(--amber);
  text-shadow: 0 0 20px rgba(224, 178, 60, 0.3), 0 2px 0 rgba(0, 0, 0, 0.8);
  font-variant-numeric: tabular-nums;
}

.kills-row {
  margin-top: 3px;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
}

.kills-row span {
  color: var(--ink);
}

/* health */
#health {
  position: absolute;
  left: 22px;
  bottom: 22px;
  width: 268px;
}

.bar-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 10px;
  letter-spacing: 0.26em;
  color: var(--ink-dim);
  margin-bottom: 6px;
}

#health-value {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.bar-track {
  position: relative;
  height: 12px;
  background: rgba(8, 12, 16, 0.82);
  border: 1px solid rgba(120, 150, 175, 0.35);
  box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.8);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 6px 100%);
}

#health-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #3aa96a, #6ef0a4);
  box-shadow: 0 0 12px rgba(84, 224, 138, 0.45);
  transition: width 120ms linear, background 200ms linear;
}

#health-fill.low {
  background: linear-gradient(90deg, #a81d10, #ff5a3a);
  box-shadow: 0 0 14px rgba(255, 70, 40, 0.55);
  animation: pulseLow 0.9s ease-in-out infinite;
}

@keyframes pulseLow {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

.hint-line {
  margin-top: 7px;
  font-size: 8px;
  letter-spacing: 0.28em;
  color: rgba(120, 145, 165, 0.5);
}

/* ammo */
#ammo {
  position: absolute;
  right: 24px;
  bottom: 20px;
  text-align: right;
}

.ammo-row {
  display: flex;
  align-items: baseline;
  justify-content: flex-end;
  gap: 8px;
}

#ammo-mag {
  font-size: 46px;
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: 0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.8), 0 0 22px rgba(160, 200, 235, 0.2);
}

#ammo-reserve {
  font-size: 17px;
  color: var(--ink-dim);
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
}

#ammo.low #ammo-mag {
  color: var(--amber);
}

#ammo.empty #ammo-mag {
  color: var(--danger);
  animation: pulseLow 0.7s ease-in-out infinite;
}

#ammo.reloading #ammo-reserve {
  color: var(--amber);
}

#ammo.reloading #ammo-reserve::after {
  content: "  RELOADING";
  animation: blink 0.55s steps(2, start) infinite;
}

.ammo-label {
  margin-top: 6px;
  font-size: 9px;
  letter-spacing: 0.24em;
  color: rgba(120, 145, 165, 0.6);
}

@keyframes blink {
  50% { opacity: 0.25; }
}

/* banner */
#banner {
  position: absolute;
  top: 26%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  opacity: 0;
  pointer-events: none;
}

#banner strong {
  display: block;
  font-family: var(--sans);
  font-size: clamp(34px, 6vw, 68px);
  font-weight: 800;
  letter-spacing: 0.16em;
  color: #f2f7ff;
  text-shadow: 0 0 40px rgba(120, 175, 220, 0.55), 0 4px 0 rgba(0, 0, 0, 0.7);
}

#banner span {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--amber);
  text-shadow: 0 0 14px rgba(224, 178, 60, 0.5);
}

#banner.show {
  animation: bannerIn 2.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes bannerIn {
  0% { opacity: 0; transform: translateX(-50%) scale(1.08); filter: blur(6px); }
  14% { opacity: 1; transform: translateX(-50%) scale(1); filter: blur(0); }
  72% { opacity: 1; }
  100% { opacity: 0; transform: translateX(-50%) scale(0.985); }
}

#mute-indicator {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 9px;
  letter-spacing: 0.3em;
  color: var(--amber-dim);
  opacity: 0;
  transition: opacity 160ms linear;
}

/* ============ SCREENS ============ */

.screen {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background:
    radial-gradient(ellipse at 50% 18%, rgba(38, 58, 78, 0.4), transparent 62%),
    linear-gradient(180deg, rgba(4, 6, 9, 0.86), rgba(3, 5, 7, 0.94));
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  cursor: pointer;
  animation: screenIn 220ms ease-out;
}

.screen.hidden {
  display: none;
}

@keyframes screenIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.screen::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.022) 0px,
    rgba(255, 255, 255, 0.022) 1px,
    transparent 1px,
    transparent 4px
  );
  pointer-events: none;
}

.screen-inner {
  position: relative;
  z-index: 1;
  width: min(860px, 100%);
  text-align: center;
}

.eyebrow {
  font-size: 10px;
  letter-spacing: 0.42em;
  color: var(--steel);
  margin-bottom: 18px;
}

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

h1 {
  font-family: var(--sans);
  font-size: clamp(52px, 11vw, 132px);
  line-height: 0.86;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #f4f8fc;
  text-shadow: 0 6px 0 rgba(0, 0, 0, 0.55), 0 0 90px rgba(110, 165, 210, 0.22);
}

h1 span {
  color: var(--amber);
  text-shadow: 0 6px 0 rgba(0, 0, 0, 0.55), 0 0 70px rgba(224, 178, 60, 0.35);
}

h1.small {
  font-size: clamp(38px, 7vw, 76px);
}

.tagline {
  margin: 20px auto 0;
  max-width: 520px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-dim);
  letter-spacing: 0.03em;
}

.controls {
  margin: 34px auto 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 640px;
  border: 1px solid rgba(120, 150, 175, 0.18);
  background: rgba(120, 150, 175, 0.14);
}

.ctrl {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 14px;
  background: rgba(9, 13, 17, 0.92);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--ink-dim);
  min-width: 0;
}

.ctrl kbd {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--ink);
  border: 1px solid rgba(130, 160, 185, 0.32);
  border-bottom-width: 2px;
  border-radius: 2px;
  padding: 4px 6px;
  background: rgba(30, 40, 50, 0.5);
  white-space: nowrap;
}

.ctrl span {
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cta {
  display: inline-block;
  margin-top: 36px;
  padding: 15px 40px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.4em;
  color: #100d04;
  background: linear-gradient(180deg, #f0c556, var(--amber-dim));
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  box-shadow: 0 0 40px rgba(224, 178, 60, 0.22);
  animation: ctaPulse 2.2s ease-in-out infinite;
}

@keyframes ctaPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.72; }
}

.fineprint {
  margin-top: 18px;
  font-size: 9px;
  letter-spacing: 0.2em;
  color: rgba(120, 140, 155, 0.62);
}

/* death */
.death-inner h1 {
  color: #ff6b4d;
  text-shadow: 0 6px 0 rgba(0, 0, 0, 0.6), 0 0 90px rgba(255, 60, 30, 0.3);
}

.death-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  max-width: 660px;
  margin: 34px auto 0;
  border: 1px solid rgba(180, 70, 50, 0.25);
  background: rgba(180, 70, 50, 0.2);
}

.dstat {
  background: rgba(10, 10, 12, 0.92);
  padding: 18px 10px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.dlabel {
  font-size: 9px;
  letter-spacing: 0.28em;
  color: var(--ink-dim);
}

.dstat > span:last-child {
  font-size: 30px;
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.best-line {
  margin-top: 22px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--ink-dim);
}

.best-line span {
  color: var(--amber);
  font-size: 16px;
  font-weight: 700;
  margin-left: 8px;
}

/* no webgl */
#nogl .tagline {
  max-width: 440px;
}

/* ============ RESPONSIVE ============ */

@media (max-width: 720px) {
  #minimap-wrap {
    width: 116px;
    height: 116px;
  }
  #minimap {
    width: 116px;
    height: 116px;
  }
  #minimap-wrap canvas#minimap {
    width: 100%;
    height: 100%;
  }
  #health {
    width: 190px;
  }
  #ammo-mag {
    font-size: 34px;
  }
  #wave-label {
    font-size: 16px;
  }
  .controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 420px;
  }
  .death-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  #score-label {
    font-size: 22px;
  }
}

@media (max-height: 560px) {
  .controls {
    margin-top: 20px;
  }
  .cta {
    margin-top: 22px;
    padding: 11px 28px;
  }
  h1 {
    font-size: clamp(38px, 8vw, 76px);
  }
}