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

[hidden] {
  display: none !important;
}

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

body {
  background: var(--bg);
  color: var(--ink);
  font: var(--text-body);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}

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

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.icon {
  width: 24px;
  height: 24px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--ink);
  font: var(--text-label);
  transition: background-color 120ms ease, transform 120ms ease;
}

.btn:hover {
  background: var(--surface-2);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--neon);
  border-color: transparent;
  color: var(--on-neon);
  font: var(--text-heading);
}

.btn-primary:hover {
  background: var(--neon);
}

.btn-primary:disabled {
  background: var(--surface-2);
  color: var(--ink-muted);
  cursor: not-allowed;
}

.icon-btn {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-2);
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--ink);
  font: var(--text-label);
}

.icon-btn:hover {
  background: var(--surface-2);
}

[dir="rtl"] .flip {
  transform: scaleX(-1);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}