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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.85;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 20% -10%, rgba(255, 106, 61, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 90% 10%, rgba(61, 214, 245, 0.1), transparent),
    radial-gradient(circle at 50% 100%, rgba(167, 139, 250, 0.08), transparent);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, black, transparent);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

button,
input,
select {
  font: inherit;
  color: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-shell {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo__icon {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.logo span {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #0c0f14;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--accent-glow);
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--stroke);
}

.btn-ghost:hover {
  background: var(--panel);
  box-shadow: none;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.875rem;
}

.btn-hero {
  padding: 14px 28px;
  font-size: 1rem;
  background: var(--gradient-hero);
  color: #0c0f14;
  box-shadow: 0 8px 32px var(--accent-glow);
  animation: map-pulse 2.5s ease infinite;
}

.btn-hero:hover {
  box-shadow: 0 12px 40px rgba(255, 106, 61, 0.5);
}

.glass {
  background: var(--gradient-card);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--panel-strong);
  border: 1px solid var(--stroke);
}

.badge-pill--earned {
  border-color: var(--gold);
  color: var(--gold);
}

.badge-pill--locked {
  opacity: 0.5;
}

.game-layout {
  display: grid;
  gap: 24px;
}

.game-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.game-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
}

.game-header p {
  color: var(--muted);
  max-width: 60ch;
}

.game-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: min(360px, calc(100vw - 32px));
}

.toast {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
  animation: toastIn 0.3s ease;
}

.toast--success {
  border-color: rgba(74, 222, 128, 0.4);
}

.toast--error {
  border-color: rgba(248, 113, 113, 0.4);
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal {
  width: min(480px, 100%);
  padding: 32px;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 106, 61, 0.35);
  box-shadow: 0 0 60px rgba(255, 106, 61, 0.2), var(--shadow);
  text-align: center;
  animation: xp-pop 0.4s ease;
}

.modal h2 {
  font-family: var(--font-display);
  margin-bottom: 8px;
}

.modal p {
  color: var(--muted);
  margin-bottom: 20px;
}

.modal .xp-burst {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  margin: 12px 0;
}

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

#confetti-canvas {
  position: fixed;
  inset: 0;
  z-index: 9500;
  pointer-events: none;
}

.sound-toggle {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 8000;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--stroke);
  background: var(--bg-elevated);
  backdrop-filter: blur(12px);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.sound-toggle:hover {
  transform: scale(1.08);
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.sound-toggle--muted {
  opacity: 0.65;
}