:root {
  /* Dynamic Backgrounds (matching main site) */
  --bg-h: var(--accent-h);
  --bg-s: 35%;
  --bg-0: hsl(var(--bg-h), var(--bg-s), 4%);
  --bg-1: hsl(var(--bg-h), var(--bg-s), 7%);
  --bg-2: hsl(var(--bg-h), var(--bg-s), 12%);
  
  --accent-h: 177; /* Default cyan */
  --accent-s: 100%;
  --accent-l: 63%;
  --accent: hsl(var(--accent-h), var(--accent-s), var(--accent-l));
  --accent-soft: hsla(var(--accent-h), var(--accent-s), var(--accent-l), 0.2);

  --text-main: hsl(var(--accent-h), 60%, 96%);
  --text-muted: hsl(var(--accent-h), 25%, 78%);
  --glass: hsla(var(--bg-h), 40%, 6%, 0.65);
  --border: hsla(var(--accent-h), var(--accent-s), var(--accent-l), 0.35);
  --shadow: 0 40px 100px rgba(0, 0, 0, 0.6);
  
  --panel-bg: rgba(8, 31, 33, 0.66);
  --btn-bg: rgba(13, 45, 46, 0.72);
  --wrap-bg: rgba(6, 20, 27, 0.88);

  --game-scale: 1;
}

body.light-theme {
  --bg-s: 25%;
  --bg-0: hsl(var(--bg-h), var(--bg-s), 96%);
  --bg-1: hsl(var(--bg-h), var(--bg-s), 93%);
  --bg-2: hsl(var(--bg-h), var(--bg-s), 90%);
  
  --accent-l: 35%;
  --accent: hsl(var(--accent-h), var(--accent-s), var(--accent-l));
  --accent-soft: hsla(var(--accent-h), var(--accent-s), var(--accent-l), 0.12);

  --text-main: hsl(var(--accent-h), 60%, 12%);
  --text-muted: hsl(var(--accent-h), 35%, 38%);
  --glass: hsla(var(--bg-h), 30%, 100%, 0.82);
  --border: hsla(var(--accent-h), var(--accent-s), var(--accent-l), 0.15);
  --shadow: 0 15px 45px rgba(0, 0, 0, 0.08);

  --panel-bg: hsla(var(--bg-h), 25%, 96%, 0.85);
  --btn-bg: hsla(var(--bg-h), 25%, 92%, 0.9);
  --wrap-bg: hsla(var(--bg-h), 25%, 98%, 0.9);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Space Grotesk", sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(900px circle at 10% 8%, hsla(var(--accent-h), 100%, 63%, 0.15), transparent 55%),
    radial-gradient(900px circle at 92% 30%, rgba(76, 162, 255, 0.1), transparent 55%),
    linear-gradient(135deg, var(--bg-0), var(--bg-1) 50%, var(--bg-2));
  overscroll-behavior: none;
}

body.is-aiming {
  user-select: none;
}

.game-shell {
  width: min(1320px, calc(100% - clamp(10px, 2vw, 26px)));
  margin: clamp(8px, 1.2vh, 14px) auto clamp(10px, 1.4vh, 18px);
}

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: clamp(10px, 1.8vw, 20px);
  padding: clamp(10px, 1.5vw, 16px);
  border-radius: clamp(14px, 2vw, 22px);
  border: 1px solid var(--border);
  background: var(--glass);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 6px;
  font-family: "JetBrains Mono", monospace;
  color: var(--accent);
  font-size: clamp(0.72rem, 0.8vw, 0.85rem);
  letter-spacing: 0.04em;
}

h1 {
  margin: 0;
  font-size: clamp(1.08rem, 2.4vw, 2rem);
  line-height: 1.15;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: clamp(42px, 5.2vw, 48px);
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--btn-bg);
  color: var(--text-main);
  text-decoration: none;
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(0.76rem, 1.2vw, 0.86rem);
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease, transform 150ms ease;
  touch-action: manipulation;
}

.action-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.hud {
  margin-top: clamp(8px, 1vw, 12px);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hud p {
  margin: 0;
  padding: 8px 12px;
  border-radius: 11px;
  border: 1px solid var(--border);
  background: var(--panel-bg);
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(0.74rem, 1.05vw, 0.86rem);
  color: var(--text-muted);
}

.hud span {
  color: var(--accent);
}

.hud .hud-hint {
  color: hsla(var(--accent-h), 100%, 81%, 0.86);
}

.canvas-wrap {
  margin-top: clamp(8px, 1vw, 12px);
  margin-inline: auto;
  position: relative;
  width: min(100%, calc((100svh - clamp(190px, 28vh, 280px)) * 16 / 9 * var(--game-scale)));
  max-width: calc(min(76svh, 760px) * 16 / 9 * var(--game-scale));
  aspect-ratio: 16 / 9;
  border-radius: clamp(14px, 2vw, 20px);
  border: 1px solid var(--border);
  overflow: hidden;
  background:
    radial-gradient(520px circle at 14% 8%, hsla(var(--accent-h), 100%, 70%, 0.1), transparent 50%),
    var(--wrap-bg);
  box-shadow: var(--shadow);
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: crosshair;
  touch-action: none;
}

#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  cursor: grab;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

.canvas-wrap:fullscreen {
  width: 100vw;
  height: 100vh;
  max-width: none;
  border-radius: 0;
  border: none;
  background: var(--bg-0);
}

.canvas-wrap:-webkit-full-screen {
  width: 100vw;
  height: 100vh;
  max-width: none;
  border-radius: 0;
  border: none;
  background: var(--bg-0);
}

body.is-aiming #game-canvas {
  cursor: grabbing;
}

/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  transition: opacity 0.3s ease;
  padding: 20px;
}

.modal.hidden {
  opacity: 0 !important;
  pointer-events: none !important;
}

.modal-content {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  width: min(550px, 100%);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  animation: modalIn 0.3s cubic-bezier(0.17, 0.67, 0.83, 0.67);
}

@keyframes modalIn {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  margin: 0;
  font-size: 1.4rem;
  color: var(--accent);
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 2.2rem;
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
}

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

.modal-body {
  padding: 20px 24px;
  overflow-y: auto;
}

/* Shop Items */
.shop-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.shop-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  background: var(--btn-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: transform 0.2s, border-color 0.2s;
}

.shop-item:hover {
  transform: translateY(-2px);
  border-color: var(--accent-soft);
}

.item-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.item-icon { font-size: 1.6rem; }
.item-name { 
  font-family: "JetBrains Mono", monospace; 
  font-size: 0.95rem;
  color: var(--text-main);
}

.buy-btn {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 10px 18px;
  border-radius: 10px;
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  cursor: pointer;
  transition: 0.2s;
  white-space: nowrap;
}

.buy-btn:hover:not(:disabled) {
  background: var(--accent);
  color: var(--bg-0);
  box-shadow: 0 0 15px var(--accent-soft);
}

.buy-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  filter: grayscale(1);
}

/* Settings */
.setting-row {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 16px;
}

.setting-row label {
  font-family: "JetBrains Mono", monospace;
  flex: 1;
}

.setting-row input[type="range"] {
  flex: 2;
  accent-color: var(--accent);
}

#scale-value {
  width: 50px;
  font-weight: bold;
  color: var(--accent);
}

.setting-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin: 10px 0 0;
}

/* Arsenal */
.weapon-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.weapon-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  background: var(--btn-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: all 0.2s ease;
}

.weapon-item.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.weapon-item.locked {
  opacity: 0.6;
  filter: grayscale(0.8);
}

.weapon-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.weapon-icon {
  font-size: 2rem;
}

.weapon-details {
  display: flex;
  flex-direction: column;
}

.weapon-name {
  font-weight: bold;
  font-size: 1.1rem;
  color: var(--text-main);
}

.weapon-stats {
  font-size: 0.8rem;
  color: var(--accent);
  font-family: "JetBrains Mono", monospace;
}

.select-weapon-btn {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-family: "JetBrains Mono", monospace;
  font-weight: bold;
  transition: all 0.2s;
}

.weapon-item.active .select-weapon-btn {
  background: var(--accent);
  color: var(--bg-0);
}

.weapon-item.locked .select-weapon-btn {
  border-color: var(--text-muted);
  color: var(--text-muted);
  cursor: not-allowed;
}

@media (max-width: 920px) {
  .game-shell {
    width: calc(100% - 12px);
  }

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

  .actions {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 920px) and (orientation: landscape) {
  .game-shell {
    margin: 0;
    width: 100%;
    max-width: none;
  }

  .game-header, .hud {
    display: none;
  }

  .canvas-wrap {
    margin: 0;
    width: 100vw;
    height: 100vh;
    max-width: none;
    max-height: none;
    border-radius: 0;
    border: none;
  }
}

@media (max-width: 640px) and (orientation: portrait) {
  .hud {
    gap: 8px;
  }

  .hud p {
    width: 100%;
  }

  .action-btn {
    min-height: 46px;
    flex: 1 1 auto;
  }

  .canvas-wrap {
    width: min(100%, calc((100svh - clamp(280px, 46vh, 380px)) * 16 / 9));
    max-width: calc(min(58svh, 480px) * 16 / 9);
  }
}