/*
 * ARC brand palette — https://atlantaregional.org/brand-colors/
 * Raw brand values live in --brand-*; page/component code uses the semantic
 * tokens below. Tints/shades are mixes with white/black at the % noted.
 * Contrast ratios (WCAG 2.1) are measured against #ffffff unless noted.
 */
:root {
  --brand-gold: #fdb714;          /* Master Nacho — logo/decorative only, NEVER text (1.76:1) */
  --brand-charcoal: #59595b;      /* Charcoal Dust — primary text, 6.99:1 */
  --brand-naga: #9f2e34;          /* Dorset Naga (red) — 7.21:1 */
  --brand-durotar: #f15e22;       /* Durotar Fire (orange) — 3.30:1, decorative/large only */
  --brand-parachuting: #095a9e;   /* Parachuting (blue) — links, 7.08:1 */
  --brand-parachuting-40: #05365f;/* Parachuting shade 40% — link hover/focus, 12.36:1 */

  --color-bg: #ffffff;                     /* white is the primary field color */
  --color-surface: #ffffff;
  --color-border: #d6d6d6;                 /* Charcoal Dust tint 75% — decorative card borders */
  --color-border-strong: #838384;          /* Charcoal Dust tint 25% — form controls, 3.79:1 (UI ≥ 3:1) */
  --color-heading: #353537;                /* Charcoal Dust shade 40% — 12.24:1 */
  --color-text: var(--brand-charcoal);     /* 6.99:1 */
  --color-text-muted: var(--brand-charcoal);
  --color-header-bg: #ffffff;              /* logo artwork (gold + #4d4d50 text) is built for a light background */
  --color-link: var(--brand-parachuting);
  --color-link-hover: var(--brand-parachuting-40);
  --color-accent-text: #a94218;            /* Durotar Fire shade 30% — 6.04:1; blue/orange is ARC's recommended pairing */
  --color-decorative: var(--brand-gold);   /* stripes/borders only */
  --color-tag-bg: #fff8e8;                 /* Master Nacho tint 90%; Charcoal text 6.60:1 */
  --color-focus: var(--brand-parachuting-40);
  --color-error-text: var(--brand-naga);   /* 6.12:1 on --color-error-bg */
  --color-error-bg: #f5eaeb;               /* Dorset Naga tint 90% */
  --color-error-border: #d9abae;           /* Dorset Naga tint 60% */
  --color-footer-bg: var(--brand-charcoal); /* ARC footers: brand gray with white text */
  --color-footer-text: #ffffff;            /* 6.99:1 on Charcoal Dust */
  --color-footer-rule: #9b9b9d;            /* Charcoal Dust tint 40% — decorative divider */

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;

  --radius-sm: 4px;
  --radius-md: 8px;

  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
}

main {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 var(--space-5) var(--space-7);
}

*:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-link-hover);
  color: #ffffff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 100;
}

.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

h1,
h2,
h3 {
  color: var(--color-heading);
}

.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;
}

.site-header {
  background: var(--color-header-bg);
  border-top: 6px solid var(--color-decorative);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-5);
}

.site-header__inner {
  max-width: 72rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

.site-header__logo {
  display: block;
  width: auto;
  height: 3.5rem;
}

.site-header h1 {
  margin: 0 0 var(--space-1);
  font-size: 1.75rem;
  line-height: 1.2;
}

@media (min-width: 640px) {
  .site-header__inner {
    flex-direction: row;
    gap: var(--space-5);
    text-align: left;
  }

  /* Decorative divider between the logo and the site title. */
  .site-header__text {
    padding-left: var(--space-5);
    border-left: 1px solid var(--color-border);
  }
}

.site-header__tagline {
  margin: 0;
  color: var(--color-text-muted);
}

.controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin: var(--space-6) 0 var(--space-4);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field label {
  font-weight: 600;
  font-size: 0.95rem;
}

.field input,
.field select {
  font: inherit;
  padding: var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
}

/* Custom arrow so its right inset matches the text's left padding
   (the native arrow sits flush against the border). Charcoal Dust
   arrow, 6.99:1 on white (UI ≥ 3:1). */
.field select {
  appearance: none;
  padding-right: calc(var(--space-3) * 2 + 0.75rem);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2359595b' stroke-width='2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 0.75rem auto;
}

/* In Windows High Contrast the fixed-color SVG could vanish, so fall
   back to the native arrow, which follows system colors. */
@media (forced-colors: active) {
  .field select {
    appearance: auto;
    background-image: none;
    padding-right: var(--space-3);
  }
}

@media (min-width: 640px) {
  .controls {
    flex-direction: row;
    align-items: flex-end;
  }

  .field {
    flex: 1;
  }
}

.results-status {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin: 0 0 var(--space-4);
}

.empty-state,
.error-state {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--space-6);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.error-state {
  color: var(--color-error-text);
  border-color: var(--color-error-border);
  background: var(--color-error-bg);
}

.artist-grid {
  list-style: none;
  margin: var(--space-5) 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-5);
}

.artist-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-decorative);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.artist-card:hover,
.artist-card:focus-within {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(53, 53, 55, 0.14);
}

@media (prefers-reduced-motion: reduce) {
  .artist-card {
    transition: none;
  }

  .artist-card:hover,
  .artist-card:focus-within {
    transform: none;
  }
}

.artist-card__photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--color-border);
}

.artist-card__name {
  margin: 0;
  font-size: 1.15rem;
}

.artist-card__organization {
  margin: calc(-1 * var(--space-2)) 0 0;
  font-weight: 600;
  color: var(--color-accent-text);
}

.artist-card__location {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.artist-card__bio {
  font-size: 0.95rem;
}

.artist-card__bio p {
  margin: 0 0 var(--space-3);
}

.artist-card__bio p:last-child {
  margin-bottom: 0;
}

/* Collapsed: show roughly the first six lines, fading out at the bottom. */
.artist-card__bio.is-collapsed {
  max-height: 9em;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom, #000 55%, transparent);
  mask-image: linear-gradient(to bottom, #000 55%, transparent);
}

.artist-card__bio-toggle {
  align-self: flex-start;
  margin-top: calc(-1 * var(--space-2));
  padding: var(--space-1) 0;
  border: 0;
  background: none;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-link);
  text-decoration: underline;
  cursor: pointer;
}

.artist-card__bio-toggle:hover {
  color: var(--color-link-hover);
}

.artist-card__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
}

.artist-card__tags li {
  background: var(--color-tag-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: var(--space-1) var(--space-3);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.artist-card__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: auto;
}

.artist-card__links a {
  color: var(--color-link);
  font-weight: 600;
  text-decoration: underline;
}

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

.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  border-top: 6px solid var(--color-decorative);
  padding: var(--space-6) var(--space-5) var(--space-5);
  font-size: 0.95rem;
}

.site-footer a {
  color: var(--color-footer-text);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

/* Hover keeps the same white-on-charcoal contrast; the underline thickens
   so the state change doesn't rely on color. */
.site-footer a:hover {
  text-decoration-thickness: 2px;
}

/* The default navy focus ring is 1.77:1 on Charcoal Dust — use white (6.99:1). */
.site-footer :focus-visible {
  outline-color: var(--color-footer-text);
}

.site-footer__inner {
  max-width: 72rem;
  margin: 0 auto;
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .site-footer__inner {
    grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  }
}

.site-footer__heading {
  margin: 0 0 var(--space-3);
  font-size: 1.05rem;
  color: var(--color-footer-text);
}

.site-footer address {
  font-style: normal;
  margin: 0 0 var(--space-3);
}

.site-footer__links,
.site-footer__social {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.site-footer__social {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* 44px targets for the icon-only links. */
.site-footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--color-footer-text);
  border-radius: 999px;
}

/* Inverted on hover: Charcoal Dust icon on white, still 6.99:1. */
.site-footer__social a:hover {
  background: var(--color-footer-text);
  color: var(--color-footer-bg);
}

.site-footer__icon {
  width: 1.25rem;
  height: 1.25rem;
  fill: currentColor;
}

.site-footer__copyright {
  max-width: 72rem;
  margin: var(--space-6) auto 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-footer-rule);
  font-size: 0.875rem;
}