/* Base layout -------------------------------------------------- */
:root {
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body,
html {
  margin: 0;
  padding: 0;
}

body,
body * {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

body ::selection {
  background: transparent;
  color: inherit;
}

.star-bg {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(ellipse at bottom, #0d1d31 0%, #000 100%);
  color: #ecf7ff;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  position: relative;
  overflow: hidden;
}

.star-bg::before {
  content: "";
  position: fixed;
  inset: -50vw;
  background: radial-gradient(circle at 30% 20%, rgba(0, 214, 255, 0.2), transparent 60%),
              radial-gradient(circle at 70% 80%, rgba(118, 82, 255, 0.18), transparent 65%);
  opacity: 0.4;
  filter: blur(120px);
  pointer-events: none;
  z-index: -1;
  transition: opacity 0.8s ease;
}

body.enhanced-mode.star-bg::before {
  opacity: 0.75;
  animation: ambientDrift 16s ease-in-out infinite;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.6rem;
  border-radius: 999px;
  background: linear-gradient(90deg, #00c6ff, #0072ff);
  color: #fff;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  box-shadow: 0 0 18px rgba(0, 210, 255, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 18px 30px rgba(0, 210, 255, 0.35);
}

.btn.small {
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
}

.btn.outline {
  background: transparent;
  border: 1px solid rgba(0, 214, 255, 0.55);
  box-shadow: none;
}

.btn.outline:hover,
.btn.outline:focus-visible {
  background: rgba(0, 214, 255, 0.12);
  box-shadow: 0 0 16px rgba(0, 214, 255, 0.35);
}

/* Header -------------------------------------------------------- */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.1rem clamp(1.5rem, 5vw, 2.6rem);
  background: rgba(5, 12, 32, 0.78);
  border-bottom: 1px solid rgba(0, 214, 255, 0.25);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
  position: relative;
  z-index: 80;
}

.header h2 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #9ef1ff;
}

.game-toolbar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}
.audio-group {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.audio-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 220px;
  padding: 0.75rem;
  border-radius: 12px;
  background: rgba(7, 14, 35, 0.94);
  border: 1px solid rgba(0, 214, 255, 0.35);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.45);
  display: grid;
  gap: 0.6rem;
  z-index: 30;
}

.audio-menu[hidden] {
  display: none;
}

.audio-menu__title {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(146, 250, 255, 0.85);
}

.audio-menu__list {
  display: grid;
  gap: 0.45rem;
}

.audio-menu__subtitle {
  margin: 0.35rem 0 0.15rem;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(146, 250, 255, 0.65);
}

.audio-volume-grid {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.4rem;
  padding-top: 0.55rem;
  border-top: 1px solid rgba(0, 214, 255, 0.18);
}

.audio-volume-group {
  display: grid;
  gap: 0.35rem;
}

.audio-volume-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(189, 246, 255, 0.7);
}

.audio-volume-name {
  font-weight: 600;
}

.audio-volume-value {
  font-variant-numeric: tabular-nums;
  color: rgba(190, 252, 255, 0.88);
}

.audio-volume-slider {
  --slider-percentage: 100%;
  --slider-track: rgba(7, 20, 48, 0.85);
  --slider-active: rgba(0, 214, 255, 0.75);
  --slider-thumb: #53e0ff;
  width: 100%;
  appearance: none;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--slider-active) var(--slider-percentage), var(--slider-track) var(--slider-percentage));
  outline: none;
  transition: background 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
}

.audio-volume-slider:focus-visible {
  box-shadow: 0 0 0 3px rgba(0, 214, 255, 0.25);
}

.audio-volume-slider::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: inherit;
  background: transparent;
}

.audio-volume-slider::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--slider-thumb);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 0 0 2px rgba(3, 24, 45, 0.8), 0 6px 12px rgba(0, 214, 255, 0.25);
  margin-top: -4px;
  transition: transform 0.2s ease;
}

.audio-volume-slider:active::-webkit-slider-thumb {
  transform: scale(1.1);
}

.audio-volume-slider::-moz-range-track {
  height: 6px;
  border-radius: inherit;
  background: var(--slider-track);
}

.audio-volume-slider::-moz-range-progress {
  height: 6px;
  border-radius: inherit;
  background: var(--slider-active);
}

.audio-volume-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--slider-thumb);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 0 0 2px rgba(3, 24, 45, 0.8), 0 6px 12px rgba(0, 214, 255, 0.25);
  transition: transform 0.2s ease;
}

.audio-volume-slider:active::-moz-range-thumb {
  transform: scale(1.1);
}

.audio-toggle {
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 214, 255, 0.35);
  background: rgba(4, 18, 46, 0.65);
  color: #f5fcff;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.audio-toggle[aria-pressed="true"] {
  background: rgba(0, 214, 255, 0.28);
  border-color: rgba(0, 214, 255, 0.75);
  color: #fff;
}

.audio-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(0, 214, 255, 0.45);
}

body.focus-mode .audio-menu__title,
body.focus-mode .audio-toggle,
body.focus-mode .audio-volume-grid,
body.focus-mode .audio-volume-name,
body.focus-mode .audio-volume-value,
body.focus-mode .audio-volume-slider {
  opacity: 0.35;
}

.toolbar-btn {
  padding: 0.48rem 0.95rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 214, 255, 0.4);
  background: rgba(6, 22, 60, 0.65);
  color: #caf7ff;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.toolbar-btn:hover,
.toolbar-btn:focus-visible,
.toolbar-btn[aria-pressed="true"],
.toolbar-btn[aria-expanded="true"] {
  background: rgba(0, 214, 255, 0.28);
  border-color: rgba(0, 214, 255, 0.8);
  color: #fff;
}

/* Mode switch --------------------------------------------------- */
.mode-switch {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 214, 255, 0.35);
  background: rgba(3, 12, 36, 0.8);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.35);
}

.mode-switch__legend {
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(146, 250, 255, 0.8);
}

.mode-switch__toggle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  min-width: 15rem;
  padding: 0.45rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 214, 255, 0.38);
  background: rgba(2, 9, 28, 0.95);
  color: #eefcff;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.mode-switch__toggle:hover,
.mode-switch__toggle:focus-visible {
  box-shadow: 0 0 20px rgba(0, 214, 255, 0.35);
  border-color: rgba(0, 214, 255, 0.6);
}

.mode-switch__option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.05;
  opacity: 0.42;
  transition: opacity 0.25s ease, color 0.25s ease;
}

.mode-switch__option span:last-child {
  font-size: 0.64rem;
  font-weight: 400;
  opacity: 0.8;
}

.mode-switch__option--enhanced {
  align-items: flex-end;
  text-align: right;
}

.mode-switch__toggle[data-mode="smooth"] .mode-switch__option--smooth,
.mode-switch__toggle[data-mode="enhanced"] .mode-switch__option--enhanced {
  opacity: 1;
  color: #ffffff;
}

.mode-switch__thumb {
  position: absolute;
  top: 0.14rem;
  bottom: 0.14rem;
  left: 0.14rem;
  width: calc(50% - 0.28rem);
  border-radius: inherit;
  background: linear-gradient(130deg, rgba(0, 214, 255, 0.55), rgba(88, 133, 255, 0.6));
  box-shadow: inset 0 0 14px rgba(0, 214, 255, 0.45), 0 0 8px rgba(88, 133, 255, 0.22);
  transition: transform 0.32s ease, box-shadow 0.32s ease;
  z-index: 0;
}

.mode-switch__thumb::after {
  content: "";
  position: absolute;
  inset: -0.25rem;
  border-radius: inherit;
  background: radial-gradient(circle at 30% 30%, rgba(0, 214, 255, 0.45), transparent 70%);
  opacity: 0;
  filter: blur(8px);
  transition: opacity 0.4s ease;
  z-index: -1;
}

.mode-switch__toggle[data-mode="enhanced"] .mode-switch__thumb::after {
  opacity: 1;
  animation: pulseRing 2.8s ease-in-out infinite;
}

.mode-switch__toggle[data-mode="enhanced"] .mode-switch__thumb {
  transform: translateX(calc(100% + 0.28rem));
}

/* Game layout --------------------------------------------------- */
.game-container {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: 1.6rem;
  padding: clamp(1.4rem, 4vw, 2.2rem);
  position: relative;
  overflow: visible;
  z-index: auto; /* ensures notification stack can escape */
}

.game-container::before,
.game-container::after {
  content: "";
  position: absolute;
  inset: -3rem;
  border-radius: 42px;
  pointer-events: none;
  opacity: 0;
  transform: scale(0.98);
  transition: opacity 0.6s ease, transform 0.6s ease;
  z-index: -2;
}

.game-container::before {
  background: radial-gradient(70% 80% at 30% 20%, rgba(0, 214, 255, 0.22), transparent 70%),
              radial-gradient(60% 70% at 70% 70%, rgba(118, 82, 255, 0.24), transparent 75%);
  filter: blur(0.5px);
}

.game-container::after {
  inset: -2rem;
  border-radius: 36px;
  background: linear-gradient(140deg, rgba(0, 214, 255, 0.18), rgba(88, 133, 255, 0.16));
  box-shadow: 0 0 60px rgba(0, 214, 255, 0.25);
  z-index: -3;
}

.canvas-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

canvas {
  width: min(900px, 95vw);
  height: auto;
  border: 2px solid #00eaff;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.65);
  box-shadow: 0 0 25px rgba(0, 174, 255, 0.45);
}

body.smooth-mode .canvas-wrapper {
  filter: drop-shadow(0 18px 36px rgba(0, 0, 0, 0.45));
}

body.enhanced-mode .canvas-wrapper {
  filter: drop-shadow(0 0 32px rgba(0, 214, 255, 0.45)) saturate(1.12);
  transform: translateY(-4px);
}

.canvas-wrapper::after {
  content: "";
  position: absolute;
  inset: 6%;
  border-radius: 18px;
  background: radial-gradient(circle at 30% 25%, rgba(0, 214, 255, 0.35), transparent 55%),
              radial-gradient(circle at 70% 65%, rgba(154, 96, 255, 0.3), transparent 60%),
              linear-gradient(140deg, rgba(0, 214, 255, 0.18), rgba(0, 34, 85, 0.2));
  opacity: 0;
  pointer-events: none;
  mix-blend-mode: screen;
  transition: opacity 0.45s ease, transform 0.55s ease;
}

body.enhanced-mode .canvas-wrapper::after {
  opacity: 0.75;
  transform: scale(1.03);
  animation: auroraGlow 8s ease-in-out infinite;
}

body.enhanced-mode .game-container::before {
  opacity: 0.82;
  transform: scale(1.01);
  animation: ambientPulse 12s ease-in-out infinite;
}

body.enhanced-mode .game-container::after {
  opacity: 0.55;
  transform: translateY(-6px);
  animation: ambientDrift 14s ease-in-out infinite;
}

body.enhanced-mode .glass-panel,
body.enhanced-mode .objective-panel,
body.enhanced-mode .mode-switch__toggle {
  border-color: rgba(0, 214, 255, 0.55);
  box-shadow: 0 0 28px rgba(0, 214, 255, 0.25);
  background: rgba(6, 20, 48, 0.84);
}

body.enhanced-mode .quest-menu {
  border-color: rgba(0, 214, 255, 0.45);
  box-shadow: inset 0 0 14px rgba(0, 214, 255, 0.3);
}

body.enhanced-mode .quest-menu__button.is-active {
  box-shadow: 0 0 20px rgba(88, 133, 255, 0.45);
}

@keyframes auroraGlow {
  0%, 100% { opacity: 0.65; transform: scale(1.02); }
  50% { opacity: 0.85; transform: scale(1.05); }
}

@keyframes ambientPulse {
  0%, 100% { opacity: 0.7; transform: scale(1.0); }
  40% { opacity: 0.85; transform: scale(1.03); }
  70% { opacity: 0.78; transform: scale(1.01); }
}

@keyframes ambientDrift {
  0%, 100% { opacity: 0.45; transform: translateY(-4px); }
  50% { opacity: 0.6; transform: translateY(-10px); }
}

@keyframes pulseRing {
  0%, 100% { opacity: 0.55; transform: scale(0.94); }
  50% { opacity: 0.85; transform: scale(1.02); }
}

.glass-panel {
  min-width: 210px;
  max-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.15rem 1.3rem;
  background: rgba(3, 12, 36, 0.72);
  border: 1px solid rgba(0, 214, 255, 0.28);
  border-radius: 16px;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(12px);
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

body.enhanced-mode .glass-panel {
  border-color: rgba(0, 214, 255, 0.55);
  box-shadow: 0 0 22px rgba(0, 214, 255, 0.32);
}

.hud h3,
.briefing h3 {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #9ef1ff;
}

.hud-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "Roboto Mono", "Courier New", monospace;
  font-size: 0.95rem;
  color: #f8fbff;
}

.hud-divider {
  height: 1px;
  margin: 0.45rem 0;
  background: linear-gradient(90deg, transparent, rgba(0, 234, 255, 0.55), transparent);
}

.hud-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(223, 237, 255, 0.65);
}

.meter {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.6);
}

.meter-fill {
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #00f6ff, #008cff);
  transition: width 0.2s ease;
}

.meter-fill.energy {
  background: linear-gradient(90deg, #a855f7, #38bdf8);
}

 .status-banner {
   position: absolute;
   inset: 0;
   display: flex;
   align-items: center;
   justify-content: center;
   border-radius: 12px;
   background: radial-gradient(circle at 35% 30%, rgba(0, 214, 255, 0.32), transparent 55%),
               radial-gradient(circle at 70% 60%, rgba(118, 82, 255, 0.28), transparent 60%),
               rgba(0, 1, 18, 0.78);
   opacity: 0;
   pointer-events: none;
   transition: opacity 0.3s ease;
 }
 
 .status-banner::before {
   content: "";
   position: absolute;
   inset: 0;
   border-radius: inherit;
   background: radial-gradient(circle at 50% 45%, rgba(0, 214, 255, 0.38), transparent 65%);
   mix-blend-mode: screen;
   opacity: 0.65;
   pointer-events: none;
 }

.status-banner.visible {
  opacity: 1;
  pointer-events: auto;
}

.banner-box {
  text-align: center;
  max-width: 320px;
}

.banner-box h2 {
  margin: 0;
  font-size: 1.6rem;
  color: #e0f6ff;
  text-shadow: 0 0 16px rgba(0, 234, 255, 0.6);
}

.banner-box p {
  margin-top: 0.75rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.95rem;
}

.briefing-list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.4rem;
  color: #d8e1ff;
  font-size: 0.95rem;
}

.briefing-list li::marker {
  color: #00eaff;
}

.mission-message {
  margin: 0;
  margin-top: auto;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

.objective-panel {
  flex: 1 1 100%;
  margin: 0 1.5rem;
  padding: 1.2rem 1.4rem;
  background: rgba(6, 15, 40, 0.68);
  border: 1px solid rgba(0, 214, 255, 0.35);
  border-radius: 16px;
  box-shadow: 0 18px 32px rgba(0, 0, 0, 0.35);
  display: grid;
  gap: 0.7rem;
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.objective-panel h3 {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #92faff;
}

.quest-menu {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.22rem;
  border-radius: 999px;
  background: rgba(0, 36, 60, 0.55);
  border: 1px solid rgba(0, 214, 255, 0.24);
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.quest-menu__button {
  all: unset;
  cursor: pointer;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(208, 236, 255, 0.68);
  transition: color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.quest-menu__button:hover,
.quest-menu__button:focus-visible {
  color: #ffffff;
}

.quest-menu__button.is-active {
  background: linear-gradient(135deg, rgba(0, 214, 255, 0.28), rgba(88, 133, 255, 0.32));
  color: #ffffff;
  box-shadow: 0 0 16px rgba(0, 214, 255, 0.28);
}

.objective-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.45rem;
  color: rgba(229, 241, 255, 0.9);
  font-size: 0.95rem;
  line-height: 1.45;

  border-radius: 12px;
  font-size: 0.85rem;
  animation: missonSlide 0.6s ease;
}

.objective-list li.completed {
  color: rgba(160, 210, 235, 0.58);
  text-decoration: line-through;
  text-decoration-color: rgba(0, 214, 255, 0.55);
  text-decoration-thickness: 2px;
}

@keyframes missonSlide {
  from { transform: translateX(40px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.control-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 25, 0.82);
  display: grid;
  place-items: center;
  z-index: 30;
}

.control-overlay[hidden] {
  display: none;
}

.overlay-content {
  position: relative;
  width: min(520px, 92vw);
  padding: clamp(1.6rem, 5vw, 2.4rem);
  border-radius: 20px;
  background: rgba(10, 30, 68, 0.92);
  border: 1px solid rgba(0, 214, 255, 0.4);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
  color: #ecf4ff;
}

.overlay-content h2 {
  margin: 0;
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #92faff;
}

.overlay-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin: 1.2rem 0;
}

.overlay-tip {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(210, 228, 255, 0.85);
}

.overlay-close {
  position: absolute;
  top: 0.6rem;
  right: 0.8rem;
  background: transparent;
  border: none;
  color: #f0f6ff;
  font-size: 1.4rem;
  cursor: pointer;
}

.overlay-close:hover,
.overlay-close:focus-visible {
  color: #ffd86b;
}

/* Focus mode ---------------------------------------------------- */
body.focus-mode .glass-panel,
body.focus-mode .briefing,
body.focus-mode .objective-panel {
  opacity: 0.15;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

body.focus-mode .game-toolbar .toolbar-btn {
  opacity: 0.35;
}

.notification-stack {
  position: fixed;
  top: 1.2rem;
  right: 1.4rem;
  display: grid;
  gap: 0.5rem;
  width: min(260px, 90vw);
  z-index: 999;
}

.notification-stack .toast {
  background: linear-gradient(130deg, rgba(0, 214, 255, 0.25), rgba(11, 17, 45, 0.9));
  border: 1px solid rgba(0, 214, 255, 0.45);
  color: #f5fcff;
  padding: 0.65rem 0.9rem;
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0, 40, 85, 0.45);
  font-size: 0.85rem;
  animation: toastSlideIn 0.4s ease forwards;
}

.notification-stack .toast + .toast {
  margin-top: 0;
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(12px) translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateX(0) translateY(0);
  }
}
body.focus-mode .notification-stack {
  opacity: 0.35;
}

/* Responsive ---------------------------------------------------- */
@media (max-width: 1024px) {
  .game-container {
    flex-direction: column;
    align-items: center;
  }

  .canvas-wrapper {
    order: -1;
  }

  .glass-panel {
    width: min(520px, 100%);
  }
}

@media (max-width: 640px) {
  .game-container {
    gap: 1rem;
    padding: 1rem;
  }

  .glass-panel {
    padding: 1rem;
  }

  .banner-box h2 {
    font-size: 1.3rem;
  }

  .mode-switch {
    width: 100%;
    justify-content: space-between;
  }

  .mode-switch__toggle {
    width: 100%;
  }

  .notification-stack {
    top: auto;
    bottom: 1.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mode-switch__toggle,
  .mode-switch__thumb,
  .mode-switch__thumb::after,
  .game-toolbar .toolbar-btn,
  .meter-fill,
  .status-banner,
  .notification-stack .toast,
  canvas,
  .canvas-wrapper::after,
  .game-container::before,
  .game-container::after {
    transition: none !important;
    animation: none !important;
  }
}