/* ============================================================
   HeroCrédito — Base Styles
   Reset, typography, and fundamental elements
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeSpeed;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: var(--color-link);
  text-decoration-skip-ink: auto;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--color-link-hover);
}

ul, ol {
  list-style: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

fieldset {
  border: none;
}

/* ── Skip link ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: var(--z-toast);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary-700);
  color: var(--color-white);
  font-weight: var(--weight-semibold);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  text-decoration: none;
  transition: top var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
  top: 0;
  outline: none;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  color: var(--color-primary-900);
  text-wrap: balance;
}

.bg-dark h1, .bg-dark h2, .bg-dark h3,
.bg-dark h4, .bg-dark h5, .bg-dark h6 {
  color: var(--color-white);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  text-wrap: pretty;
  max-width: 72ch;
}

.lead {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}

.text-sm { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.text-center { text-align: center; }
.text-right { text-align: right; }

strong, .font-bold { font-weight: var(--weight-bold); }
.font-semibold { font-weight: var(--weight-semibold); }
.font-medium { font-weight: var(--weight-medium); }

/* Financial numbers */
.num, .money, [data-money] {
  font-family: var(--font-heading);
  font-variant-numeric: tabular-nums;
  font-weight: var(--weight-semibold);
}

.money-lg {
  font-family: var(--font-heading);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  color: var(--color-primary-700);
}

/* ── Layout ── */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container-sm {
  max-width: var(--container-sm);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container-md {
  max-width: var(--container-md);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container-lg {
  max-width: var(--container-lg);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--space-16);
}

.section-sm {
  padding-block: var(--space-10);
}

.section-lg {
  padding-block: var(--space-20);
}

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ── Spacing utilities ── */
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

/* ── Prose (for article/guide content) ── */
.prose > * + * {
  margin-top: var(--space-5);
}

.prose h2 {
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

.prose h3 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.prose ul, .prose ol {
  padding-left: var(--space-6);
}

.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }

.prose li + li {
  margin-top: var(--space-2);
}

.prose a {
  text-decoration: underline;
}

.prose blockquote {
  border-left: 3px solid var(--color-accent-500);
  padding-left: var(--space-6);
  color: var(--color-text-secondary);
  font-style: italic;
}

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

.hidden { display: none !important; }

@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
}

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

/* ── Focus ── */
:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* ── Divider ── */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: var(--space-8);
}

/* ── External link indicator ── */
a[target="_blank"]::after {
  content: "";
  display: inline-block;
  width: 0.75em;
  height: 0.75em;
  margin-left: 0.25em;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 13v6a2 2 0 01-2 2H5a2 2 0 01-2-2V8a2 2 0 012-2h6'/%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cline x1='10' y1='14' x2='21' y2='3'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  vertical-align: middle;
  opacity: 0.5;
}

/* Don't show for buttons or specific classes */
a[target="_blank"].btn::after,
a[target="_blank"].no-external-icon::after {
  display: none;
}