:root {
  --bg-950: #080707;
  --bg-900: #110d0c;
  --bg-850: #17110f;
  --bg-800: #201815;
  --panel: rgba(17, 13, 12, 0.74);
  --panel-strong: rgba(23, 17, 15, 0.88);
  --panel-soft: rgba(255, 255, 255, 0.03);
  --line: rgba(255, 180, 132, 0.14);
  --line-strong: rgba(255, 180, 132, 0.28);
  --accent: #ff7c4d;
  --accent-soft: #ffc27b;
  --accent-cool: #74e5db;
  --text-main: #f8f2eb;
  --text-soft: #cdb7a4;
  --text-dim: #9f8777;
  --shadow: rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

.brand-bar,
.hud-panel,
.overlay-card,
.solid-button,
.ghost-button,
#game-canvas {
  -webkit-user-select: none;
  user-select: none;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(255, 124, 77, 0.18), transparent 28%),
    linear-gradient(180deg, #1a1311 0%, #0a0808 100%);
  color: var(--text-main);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
}

body {
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 90px 90px;
  opacity: 0.2;
  pointer-events: none;
}

.page-shell {
  min-height: 100vh;
  padding: 1rem;
}

.brand-bar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.95rem;
}

.brand-copy {
  display: grid;
  gap: 0.18rem;
}

.brand-side {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.eyebrow,
.overlay-kicker,
.hud-label,
.status-label,
.signal-chip,
.status-chip {
  margin: 0;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.68rem;
}

.brand-bar h1,
.overlay-card h2 {
  margin: 0;
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-bar h1 {
  font-size: clamp(2.3rem, 4vw, 3.4rem);
  line-height: 0.94;
}

.brand-summary {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
}

.signal-chip,
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--accent-soft);
}

.signal-chip::before,
.status-chip::before {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cool), #d7fff6);
  box-shadow: 0 0 14px rgba(116, 229, 219, 0.6);
}

.game-layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 1rem;
  height: calc(100vh - 6.4rem);
}

.hud-panel {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 1rem;
  min-height: 0;
}

.hud-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.hud-card,
.status-panel,
.overlay-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 32%),
    linear-gradient(135deg, rgba(255, 124, 77, 0.05), transparent 42%),
    var(--panel);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 24px 60px var(--shadow);
  backdrop-filter: blur(18px);
}

.hud-card::before,
.status-panel::before,
.overlay-card::before,
.arena-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.02), transparent 45%);
  pointer-events: none;
}

.hud-card {
  padding: 0.8rem 0.9rem 0.9rem;
}

.hud-card strong {
  display: block;
  margin-top: 0.45rem;
  font-size: 1.26rem;
  letter-spacing: 0.02em;
}

.health-bar {
  margin-top: 0.5rem;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.health-bar-fill {
  height: 100%;
  width: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, #5a5, #6c6);
  transition: width 0.2s ease, background 0.3s ease;
}

.status-panel {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.status-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.event-feed {
  list-style: none;
  padding: 0;
  margin: 0.95rem 0 0;
  display: grid;
  gap: 0.75rem;
  overflow: auto;
}

.event-feed li {
  position: relative;
  padding: 0.9rem 1rem 0.9rem 1.3rem;
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgba(255, 124, 77, 0.08), transparent 55%),
    rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 194, 123, 0.08);
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.45;
}

.event-feed li::before {
  content: "";
  position: absolute;
  left: 0.6rem;
  top: 1rem;
  width: 0.36rem;
  height: 0.36rem;
  border-radius: 50%;
  background: var(--accent-soft);
  box-shadow: 0 0 10px rgba(255, 194, 123, 0.5);
}

.arena-shell {
  position: relative;
  min-height: 0;
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.04), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent),
    var(--bg-900);
  border: 1px solid var(--line-strong);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 36px 80px rgba(0, 0, 0, 0.52);
}

.arena-shell::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(255, 194, 123, 0.12);
  border-radius: 20px;
  pointer-events: none;
}

#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}

.overlay-card {
  position: absolute;
  inset: 50% auto auto 50%;
  width: min(560px, calc(100% - 2.2rem));
  transform: translate(-50%, -50%);
  padding: 1.55rem;
  background:
    radial-gradient(circle at top, rgba(255, 124, 77, 0.18), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 34%),
    var(--panel-strong);
}

.overlay-card h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 0.95;
}

.overlay-card p {
  color: var(--text-soft);
  line-height: 1.6;
}

.overlay-note {
  margin-top: -0.15rem;
  color: var(--text-dim);
  font-size: 0.92rem;
}

.menu-highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 1rem 0 1.15rem;
}

.menu-highlights article {
  padding: 0.85rem 0.9rem;
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgba(255, 124, 77, 0.08), transparent 60%),
    rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 194, 123, 0.08);
}

.menu-highlights span {
  display: block;
  color: var(--text-dim);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.menu-highlights strong {
  display: block;
  margin-top: 0.42rem;
  font-size: 1.02rem;
}

.controls-list {
  display: grid;
  gap: 0.58rem;
  margin: 1rem 0 1.35rem;
}

.controls-list p {
  margin: 0;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.86rem 0.95rem;
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.03), transparent 70%),
    rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 194, 123, 0.06);
}

.controls-list span {
  color: var(--text-soft);
}

.controls-list strong {
  color: var(--text-main);
}

.accent-copy {
  color: var(--accent-soft);
}

.button-row {
  display: flex;
  gap: 0.75rem;
}

.solid-button,
.ghost-button {
  appearance: none;
  border-radius: 999px;
  padding: 0.9rem 1.35rem;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    transform 140ms ease,
    box-shadow 140ms ease,
    border-color 140ms ease,
    background 140ms ease;
}

.solid-button {
  border: 0;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 100%);
  color: #1a0c09;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.25),
    0 16px 34px rgba(255, 124, 77, 0.26);
}

.ghost-button {
  border: 1px solid rgba(255, 194, 123, 0.16);
  background: rgba(255, 255, 255, 0.035);
  color: var(--text-main);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.solid-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.solid-button:hover {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.32),
    0 20px 38px rgba(255, 124, 77, 0.3);
}

.ghost-button:hover {
  border-color: rgba(255, 194, 123, 0.28);
}

.hidden {
  display: none;
}

.visible {
  display: block;
}

@media (max-width: 1120px) {
  body {
    overflow: auto;
  }

  .game-layout {
    grid-template-columns: 1fr;
    height: auto;
  }

  .hud-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .arena-shell {
    min-height: 72vh;
  }
}

@media (max-width: 760px) {
  .page-shell {
    padding: 0.82rem;
  }

  .brand-bar,
  .brand-side,
  .button-row {
    flex-direction: column;
    align-items: stretch;
  }

  .hud-grid,
  .menu-highlights {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .status-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .overlay-card {
    padding: 1.15rem;
  }

  .controls-list p {
    font-size: 0.95rem;
  }
}

@media (max-width: 540px) {
  .hud-grid,
  .menu-highlights {
    grid-template-columns: 1fr;
  }

  .overlay-card {
    width: calc(100% - 1.3rem);
  }
}