/* @font-face declarations live in fonts.css, shared with the Django and Angular shells. */

:root {
  --color-brand: #005197;
  --color-signal: #007dd1;
  --color-trace: #f68620;
  --color-amber: #a85c16;
  --color-ink: #0b1f33;
  --color-muted: #4a6076;
  --color-paper: #f7f9fb;
  --color-surface: #fff;
  --color-rule: #d3dee8;
  --color-muted-reversed: #9db3c7;

  /* Paired with a ground: #f68620 clears 6.64:1 on ink but only 2.38:1 on paper. */
  --color-page-foreground: #0b1f33;
  --color-page-background: #f7f9fb;
  --color-surface-foreground: #0b1f33;
  --color-surface-background: #fff;
  --color-action-foreground: #fff;
  --color-action-background: #005197;
  --color-link-foreground: #005197;
  --color-link-background: #f7f9fb;
  --color-focus-foreground: #007dd1;
  --color-focus-background: #f7f9fb;
  --color-dark-foreground: #fff;
  --color-dark-background: #0b1f33;
  --color-dark-muted-foreground: #9db3c7;
  --color-dark-muted-background: #0b1f33;

  --font-display: "Roboto Slab", Georgia, serif;
  --font-body: "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Noto Sans Mono", "Roboto Mono", ui-monospace, monospace;

  --font-size-base: 1rem;
  --fs-900: 3.052rem;
  --fs-700: 1.953rem;
  --fs-500: 1.25rem;
  --fs-400: 1rem;
  --fs-300: 0.875rem;
  --fs-200: 0.75rem;
  --line-height-body: 1.6;
  --line-height-heading: 1.15;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --content-measure: 64rem;
  --text-measure: 70ch;
  --focus-width: 0.1875rem;

  --form-measure: 30rem;
  --tap-target: 2.75rem;
}

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

html {
  color-scheme: light;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-block-size: 100vh;
  margin: 0;
  color: var(--color-page-foreground);
  background: var(--color-page-background);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-body);

  /* Pins the header and footer bands to the viewport edges on short pages. */
  display: flex;
  flex-direction: column;
}

h1,
h2,
h3 {
  max-inline-size: var(--text-measure);
  margin-block: 0;
  font-family: var(--font-display);
  line-height: var(--line-height-heading);
}

h1 {
  font-size: clamp(var(--fs-500), 1.1rem + 2.5vw, var(--fs-700));
}

h2 {
  font-size: var(--fs-500);
}

h3 {
  font-size: var(--fs-400);
}

p {
  margin-block: 0;
}

ul,
ol {
  margin-block: 0;
  padding-inline-start: var(--space-6);
}

a {
  color: var(--color-link-foreground);
  text-decoration: none;
  text-decoration-thickness: 0.1em;
  text-underline-offset: 0.2em;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

/* Link color against body ink is 2.09:1, under WCAG 1.4.1's 3:1, so the underline carries it. */
main :is(p, li, dd, address) a:not(.button) {
  text-decoration: underline;
}

address {
  font-style: normal;
}

code,
pre,
kbd,
samp {
  font-family: var(--font-mono);
}

:focus-visible {
  outline: var(--focus-width) solid var(--color-focus-foreground);
  outline-offset: var(--space-1);
}

img,
picture,
svg {
  display: block;
  max-inline-size: 100%;
}

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

.page-shell {
  inline-size: min(100% - (2 * var(--space-4)), var(--content-measure));
  margin-inline: auto;
  padding-block: var(--space-8);

  /* Claims the space between the bands so the footer sits at the bottom. */
  flex: 1;
}

.site-header__inner,
.site-footer__inner {
  inline-size: min(100% - (2 * var(--space-4)), var(--content-measure));
  margin-inline: auto;
}

@media (min-width: 48rem) {
  .page-shell,
  .site-header__inner,
  .site-footer__inner {
    inline-size: min(100% - (2 * var(--space-8)), var(--content-measure));
  }

  .page-shell {
    padding-block: var(--space-12);
  }
}

.site-header,
.site-footer {
  color: var(--color-dark-foreground);
  background: var(--color-dark-background);
}

.site-header {
  border-block-end: var(--focus-width) solid var(--color-trace);
}

.site-header a:not(.button),
.site-footer a:not(.button) {
  color: inherit;
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-8);
  align-items: center;
  padding-block: var(--space-5);
}

.site-name {
  /* Cancels the clear space baked into the lockup artwork. */
  --lockup-width: min(12rem, 50vw);
  --lockup-clear: calc(var(--lockup-width) * 0.042224);

  display: inline-flex;
  align-items: center;
  margin-inline: calc(var(--lockup-clear) * -1);
  text-decoration: none;
}

.site-lockup {
  inline-size: var(--lockup-width);
  block-size: auto;
}

.skip-link {
  position: absolute;
  z-index: 1;
  inset-block-start: var(--space-2);
  inset-inline-start: var(--space-2);
  padding: var(--space-3) var(--space-4);
  color: var(--color-action-foreground);
  background: var(--color-action-background);
  font-weight: 700;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.skip-link:hover,
.skip-link:focus-visible {
  text-decoration: none;
}

.site-footer__inner {
  display: grid;
  gap: var(--space-8);
  padding-block: var(--space-8);
}

.site-footer__brand {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: var(--space-3);
}

.site-footer__meta {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: var(--space-6);
}

.site-footer__mark {
  inline-size: 3.5rem;
  block-size: auto;
}

.site-footer__affiliation,
.site-footer__copyright {
  color: var(--color-dark-muted-foreground);
  font-size: var(--fs-300);
}

.attribution-marks {
  --marks-height: clamp(1.75rem, 6vw, 2.5rem);

  display: flex;
  min-block-size: var(--marks-height);
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.attribution-mark {
  inline-size: auto;
  max-inline-size: 100%;
  object-fit: contain;
}

.attribution-mark--ruiz {
  block-size: var(--marks-height);
}

.attribution-mark--uf {
  block-size: calc(var(--marks-height) * 0.7);
}

.attribution-divider {
  inline-size: 0.0625rem;
  block-size: calc(var(--marks-height) * 0.7);
  background: var(--color-dark-foreground);
}
.footer-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-6);
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 48rem) {
  .site-footer__inner {
    grid-template-columns: 1fr auto;
    gap: var(--space-12);
    padding-block: var(--space-12);
  }

  .site-footer__meta {
    justify-items: end;
  }
}

.task-card {
  display: grid;
  gap: var(--space-6);
  inline-size: 100%;
  margin-inline: auto;
  padding: clamp(var(--space-5), 5vw, var(--space-8));
  border: 0.0625rem solid var(--color-rule);
  border-radius: var(--space-2);
  color: var(--color-surface-foreground);
  background: var(--color-surface-background);
}

.task-card__header {
  display: grid;
  gap: var(--space-2);
}

.lede {
  font-size: clamp(var(--fs-400), 1rem + 0.5vw, var(--fs-500));
}

.form-fields {
  display: grid;
  inline-size: min(100%, var(--form-measure));
  gap: var(--space-5);
}

.field {
  display: grid;
  gap: var(--space-2);
}

.field > label {
  font-weight: 600;
}

.field input {
  inline-size: 100%;
  min-block-size: var(--tap-target);
  padding: var(--space-2) var(--space-3);

  /* The border is the field's only boundary, so it owes WCAG 1.4.11 3:1; --color-rule is 1.37:1. */
  border: 0.0625rem solid var(--color-muted);
  border-radius: var(--space-2);
  color: var(--color-surface-foreground);
  background: var(--color-surface-background);
  font-family: inherit;

  /* Below 16px, iOS Safari zooms the page on focus and leaves the form scrolled sideways. */
  font-size: 1rem;
}

.field input:focus-visible {
  outline: var(--focus-width) solid var(--color-focus-foreground);
  outline-offset: var(--space-1);
}

.form-actions {
  display: grid;
  gap: var(--space-4);
  justify-items: start;
}

.button {
  display: inline-flex;
  min-block-size: var(--tap-target);
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-6);
  border: 0;
  border-radius: var(--space-2);
  color: var(--color-action-foreground);
  background: var(--color-action-background);
  font: inherit;
  font-family: var(--font-display);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.button:hover,
.button:focus-visible {
  text-decoration: none;
}

/* No green or red in the palette, so the icon and heading copy carry success vs failure too. */
.status-panel {
  display: grid;
  gap: var(--space-4);
  padding-inline-start: var(--space-5);
  border-inline-start: var(--focus-width) solid var(--color-link-foreground);
}

.status-panel--error {
  border-inline-start-color: var(--color-amber);
}

.status-panel__icon {
  inline-size: 2rem;
  block-size: 2rem;
  color: var(--color-link-foreground);
}

.status-panel--error .status-panel__icon {
  color: var(--color-amber);
}

/* #a85c16 is 4.73:1 on paper: the only non-brand color cleared to carry a word. */
.status-panel--error h1 {
  color: var(--color-amber);
}

.status-panel__details {
  display: grid;
  gap: var(--space-3);
}

.status-panel__details ul {
  display: grid;
  gap: var(--space-3);
  padding-inline-start: var(--space-5);
}

.status-panel__details li {
  line-height: var(--line-height-body);
}

.form-error {
  padding: var(--space-3) var(--space-4);
  border-inline-start: var(--focus-width) solid var(--color-amber);
  color: var(--color-amber);
  background: var(--color-paper);
  font-weight: 600;
}

.form-notice {
  padding: var(--space-3) var(--space-4);
  border-inline-start: var(--focus-width) solid var(--color-link-foreground);
  color: var(--color-ink);
  background: var(--color-paper);
}

.inline-form {
  display: inline;
}

.inline-link-button {
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  font-weight: inherit;
  text-decoration: underline;
  cursor: pointer;
}

.inline-link-button:hover,
.inline-link-button:focus-visible {
  text-decoration: none;
}

.spinner-row {
  display: none;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-muted);
}

.spinner-row[data-active="true"] {
  display: flex;
}

.spinner {
  inline-size: 1.5rem;
  block-size: 1.5rem;
  border: 0.1875rem solid var(--color-rule);
  border-block-start-color: var(--color-brand);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* The global reduced-motion rule stops the spin, leaving a ring that reads as a stray circle. */
@media (prefers-reduced-motion: reduce) {
  .spinner {
    border-block-start-color: var(--color-rule);
  }
}