:root {
  color-scheme: light dark;

  /* Paleta pastel — colores de texto/acento verificados a >=4.5:1 (>=3:1 para bordes)
     sobre --color-surface; los --color-tint-* son solo decorativos (fondos, sin texto). */
  --color-bg: #fbf7ff;
  --color-surface: #ffffff;
  --color-border: #8b84a8;
  --color-text: #2e2a3d;
  --color-text-muted: #6b6480;
  --color-accent: #5a52e0;
  --color-accent-text: #ffffff;
  --color-positive: #0f7a52;
  --color-negative: #c6435a;
  --color-danger: #c6435a;
  --color-focus: #5a52e0;

  --color-tint-header: #f1edff;
  --color-tint-expenses: #edeaff;
  --color-tint-balances: #e3f6ec;
  --color-tint-settlement: #ffeee8;
  --color-logo-bg: #f1edff;
  --color-logo-third: #f2a65a;
  --color-danger-text: #ffffff;

  /* Botones pastel por rol (verificados >=4.5:1 texto/fondo) */
  --btn-violet-bg: #ece9ff;
  --btn-violet-text: #5a52e0;
  --btn-mint-bg: #e1f7ec;
  --btn-mint-text: #0f7a52;
  --btn-rose-bg: #ffe7ec;
  --btn-rose-text: #b23850;
  --btn-peach-bg: #ffebd9;
  --btn-peach-text: #97511a;
  --btn-sky-bg: #e1efff;
  --btn-sky-text: #2a5fa8;
  --btn-teal-bg: #dff5f3;
  --btn-teal-text: #146f6b;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;

  --shadow-sm: 0 1px 3px rgb(90 82 224 / 0.1);
  --shadow-md: 0 8px 20px rgb(90 82 224 / 0.14);

  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --color-bg: #1e1b29;
  --color-surface: #292540;
  --color-border: #7a7295;
  --color-text: #ede9f7;
  --color-text-muted: #b7afd1;
  --color-accent: #a79bff;
  --color-accent-text: #211b3d;
  --color-positive: #7ee2b8;
  --color-negative: #ff9eb0;
  --color-danger: #ff9eb0;
  --color-focus: #a79bff;

  --color-tint-header: #262143;
  --color-tint-expenses: #2a2650;
  --color-tint-balances: #1e3a30;
  --color-tint-settlement: #3a2430;
  --color-logo-bg: #322c55;
  --color-logo-third: #ffc98a;
  --color-danger-text: #211b3d;

  --btn-violet-bg: #34305c;
  --btn-violet-text: #a79bff;
  --btn-mint-bg: #1f3f34;
  --btn-mint-text: #7ee2b8;
  --btn-rose-bg: #40222b;
  --btn-rose-text: #ff9eb0;
  --btn-peach-bg: #40301f;
  --btn-peach-text: #ffc98a;
  --btn-sky-bg: #202f45;
  --btn-sky-text: #8fc4ff;
  --btn-teal-bg: #1c3a38;
  --btn-teal-text: #7fe0d6;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    color-scheme: dark;
    --color-bg: #1e1b29;
    --color-surface: #292540;
    --color-border: #7a7295;
    --color-text: #ede9f7;
    --color-text-muted: #b7afd1;
    --color-accent: #a79bff;
    --color-accent-text: #211b3d;
    --color-positive: #7ee2b8;
    --color-negative: #ff9eb0;
    --color-danger: #ff9eb0;
    --color-focus: #a79bff;

    --color-tint-header: #262143;
    --color-tint-expenses: #2a2650;
    --color-tint-balances: #1e3a30;
    --color-tint-settlement: #3a2430;
    --color-logo-bg: #322c55;
    --color-logo-third: #ffc98a;
    --color-danger-text: #211b3d;

    --btn-violet-bg: #34305c;
    --btn-violet-text: #a79bff;
    --btn-mint-bg: #1f3f34;
    --btn-mint-text: #7ee2b8;
    --btn-rose-bg: #40222b;
    --btn-rose-text: #ff9eb0;
    --btn-peach-bg: #40301f;
    --btn-peach-text: #ffc98a;
    --btn-sky-bg: #202f45;
    --btn-sky-text: #8fc4ff;
    --btn-teal-bg: #1c3a38;
    --btn-teal-text: #7fe0d6;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    sans-serif;
  font-size: var(--font-size-base);
  background-color: var(--color-bg);
  color: var(--color-text);
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin-top: 0;
}

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

button {
  cursor: pointer;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  padding: var(--space-2) var(--space-3);
}

button:hover {
  border-color: var(--color-accent);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

input,
select {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  padding: var(--space-2);
}

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

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}