body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--text-primary);
  background: var(--scene-ground);
  overflow-x: hidden;
  user-select: none;
  -webkit-user-select: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
  color: var(--text-secondary);
  line-height: 1.6;
}

strong, b {
  font-weight: 700;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

::selection {
  background: var(--color-primary-200);
  color: var(--color-primary-800);
}

::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary-300);
  border-radius: var(--radius-full);
}

input, textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-input);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

input::placeholder {
  color: var(--text-muted);
}

button:focus-visible, a:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid #174f85;
  outline-offset: 4px;
}

.how-to-play { display: grid; gap: 14px; }
.home__help-btn { min-width: 44px; min-height: 44px; font-size: 24px; font-weight: 800; }
.settings__item--toggle { cursor: pointer; }
.toggle:has(input:focus-visible) { outline: 3px solid #174f85; outline-offset: 4px; border-radius: 24px; }
.game__finish-btn { min-height: 44px; }