/* KODE Product OS: reading and accessibility layer.
   Load last, after the Tailwind build output (tailwind.css). Keep it unlayered so it wins over the kode design-system layers.
   Uses tokens only; adds no hex values, no hand-written gradients.
   Also lifts kode components whose text fails WCAG AA (tabs, status tags) without editing kode. */

:root {
  color-scheme: light; /* light only, per Eric */
  /* Reading type */
  --pos-font-body: var(--font-sans);
  --pos-text-body: 1rem;          /* 16px = DS text-lg */
  --pos-leading-body: 1.625;      /* 26px */
  --pos-measure: 68ch;
  --pos-text-meta: 0.875rem;      /* 14px = DS text-base; captions, metadata */

  /* Text colors (all >= 4.5:1 on white, gray-100 and blue-50) */
  --pos-color-text: var(--color-blue-900);        /* 16.45:1 */
  --pos-color-text-subtle: var(--color-gray-700); /* 5.94:1 */
  --pos-color-success-text: var(--color-green-800); /* replaces green-500 (2.27:1) */
  --pos-color-error-text: var(--color-red-600);   /* replaces red-400 (3.04:1); 5.46:1 */

  /* Links: navy text, orange underline */
  --pos-link: var(--color-blue-900);
  --pos-link-underline: var(--color-orange-600);
  --pos-link-underline-hover: var(--color-orange-800);

  /* Focus: 3px ring, >= 3:1 against both the control and the surface */
  --pos-focus: var(--color-blue-600);  /* 8.03:1 on white */
  --pos-focus-on-dark: var(--color-orange-500); /* 7.9:1 on blue-900 */

  --pos-header-height: 4rem;

  /* Page inset: 16px on mobile (Tailwind p-4), 30px from md (48rem) */
  --pos-page-inset: var(--spacing-4);
}

html { scroll-padding-top: calc(var(--pos-header-height) + var(--spacing-dense)); }

.pos-prose {
  font-family: var(--pos-font-body);
  font-size: var(--pos-text-body);
  line-height: var(--pos-leading-body);
  color: var(--pos-color-text);
  max-width: var(--pos-measure);
}
.pos-prose h1 { font-size: 1.875rem; line-height: 2.5rem; font-weight: 700; margin: 0 0 var(--spacing-block); }
.pos-prose h2 { font-size: 1.3125rem; line-height: 1.75rem; font-weight: 600; margin: var(--spacing-section) 0 var(--spacing-related); }
.pos-prose h3 { font-size: 1rem; line-height: 1.5rem; font-weight: 700; margin: var(--spacing-block) 0 var(--spacing-inline); }
.pos-prose p, .pos-prose ul, .pos-prose ol { margin: 0 0 var(--spacing-dense); }
.pos-prose ul { list-style: disc; padding-left: 1.5em; }
.pos-prose ol { list-style: decimal; padding-left: 1.5em; }
.pos-prose li + li { margin-top: var(--spacing-related); }
.pos-prose small, .pos-meta { font-size: var(--pos-text-meta); line-height: 1.25rem; color: var(--pos-color-text-subtle); }
.pos-prose blockquote { margin: 0 0 var(--spacing-dense); padding-left: var(--spacing-dense); border-left: 4px solid var(--color-orange-600); color: var(--color-gray-800); }
.pos-prose code { font-family: var(--font-mono); font-size: 0.875em; background: var(--color-gray-100); padding: 0.1em 0.3em; border-radius: var(--radius-xs); }

/* Links */
.pos-prose a, a.pos-link {
  color: var(--pos-link);
  text-decoration-line: underline;
  text-decoration-color: var(--pos-link-underline);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.2em;
}
.pos-prose a:hover, a.pos-link:hover { text-decoration-thickness: 3px; text-decoration-color: var(--pos-link-underline-hover); }
.pos-on-dark a { color: var(--color-white); text-decoration-color: var(--color-orange-600); } /* 7.12:1 underline on navy */

/* Focus: keyboard only, never removed */
:focus-visible { outline: 3px solid var(--pos-focus); outline-offset: 2px; border-radius: var(--radius-xs); }
.pos-on-dark :focus-visible { outline-color: var(--pos-focus-on-dark); }


/* Metric tiles: only combinations that pass 4.5:1 at the lightest stop */
.pos-stat { border-radius: var(--radius-lg); padding: var(--spacing-dense); }
.pos-stat__label { font-size: var(--pos-text-meta); font-weight: 600; }
.pos-stat__value { font-size: 1.5rem; line-height: 2rem; font-weight: 700; }
.pos-stat--tasks  { background: var(--gradient-stat-tile-tasks);  color: var(--color-white); }      /* 11.83:1 */
.pos-stat--header { background: var(--gradient-card-header);      color: var(--color-white); }      /* 5.76:1 */
.pos-stat--review { background: var(--gradient-stat-tile-review); color: var(--color-blue-900); }   /* 6.06:1 */
.pos-stat--active { background: var(--gradient-stat-tile-active); color: var(--color-blue-900); }   /* 5.21:1 */
/* zeroed (white 3.88:1, navy 2.05:1) and volume (white 2.90:1, navy 2.10:1) have no passing text color: not used. */
.pos-stat--neutral { background: var(--color-blue-50); color: var(--color-blue-900); border: 1px solid var(--color-blue-200); } /* 15.33:1 */

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

@media (min-width: 48rem) { :root { --pos-page-inset: var(--spacing-page); } }

/* kode overrides for contrast (kode itself is out of scope) */
.c-tab__content--active { color: var(--color-blue-900); }              /* was orange-600, 2.31:1 */
.c-status-tag--success { color: var(--color-green-800); }               /* was green-600 */
.c-status-tag--info    { color: var(--color-blue-700); }                /* was blue-500 */
.c-status-tag--warning { color: var(--color-orange-900); }              /* was orange-600 */
.c-status-tag--error   { color: var(--color-red-700); }                 /* was red-500 */

/* Prose code blocks (Rouge) */
.pos-prose pre { margin: 0 0 var(--spacing-dense); padding: var(--spacing-dense); overflow-x: auto;
  background: var(--color-blue-50); border: 1px solid var(--color-blue-200); border-radius: var(--radius-lg);
  font: 0.9375rem/1.5rem var(--font-mono); color: var(--color-blue-900); }
.pos-prose pre code { background: none; padding: 0; font-size: inherit; }
.pos-prose .c, .pos-prose .c1, .pos-prose .cm, .pos-prose .cs { color: var(--color-gray-700); font-style: italic; }
.pos-prose .k, .pos-prose .kd, .pos-prose .kn, .pos-prose .kr, .pos-prose .kc { color: var(--color-blue-600); font-weight: 600; }
.pos-prose .s, .pos-prose .s1, .pos-prose .s2, .pos-prose .ss, .pos-prose .si { color: var(--color-green-800); }
.pos-prose .m, .pos-prose .mi, .pos-prose .mf { color: var(--color-orange-900); }
.pos-prose .nf, .pos-prose .fm { color: var(--color-red-700); }
.pos-prose .nc, .pos-prose .nn, .pos-prose .no { color: var(--color-blue-700); font-weight: 600; }
.pos-prose .p, .pos-prose .o { color: var(--color-gray-800); }
.pos-prose .gi { background: var(--color-green-100); }
.pos-prose .gd { background: var(--color-red-100); }

/* Prose tables */
.pos-prose table { width: 100%; border-collapse: collapse; margin: 0 0 var(--spacing-dense); font-size: var(--pos-text-meta); line-height: 1.25rem; }
.pos-prose th, .pos-prose td { text-align: left; vertical-align: top; padding: var(--spacing-related) var(--spacing-group); border-bottom: 1px solid var(--color-gray-300); }
.pos-prose th { font-weight: 600; }

/* Site navigation */
.pos-nav a { display: block; padding: var(--spacing-related) var(--spacing-group); border-radius: var(--radius-sm);
  color: var(--color-blue-900); font-weight: 400; text-decoration: none; min-height: 2.5rem; }
.pos-nav a:hover { background: var(--color-blue-50); text-decoration: none; }
.pos-nav a[aria-current="page"] { background: var(--color-blue-100); font-weight: 600; box-shadow: inset 3px 0 var(--color-orange-600); }
.pos-nav .pos-nav__sub a { padding-left: var(--spacing-section); font-size: var(--pos-text-meta); }

/* kode cards style `.c-card > main`, but a page may only have one <main> landmark.
   Product OS uses a div with the same box rules. */
.c-card > .pos-card-body { display: flex; flex-direction: column; gap: var(--card-section-padding); padding: var(--card-section-padding); }
.c-tab__content--inactive { color: var(--color-gray-700); }             /* was gray-500, 1.84:1 */
.c-breadcrumbs li:last-child { color: var(--color-blue-700); }         /* was blue-500, 3.88:1 */
.pos-nav .pos-nav__sub .pos-nav__sub a { padding-left: calc(var(--spacing-section) + var(--spacing-dense)); }

/* Accordion items: the title stays a link; the chevron is its own button. */
.pos-nav__row { display: flex; align-items: center; gap: var(--spacing-inline); }
.pos-nav__row > a { flex: 1; min-width: 0; }
.pos-nav__toggle { flex: none; display: inline-flex; align-items: center; justify-content: center; width: 2.5rem; height: 2.5rem;
  border-radius: var(--radius-sm); color: var(--color-blue-900); cursor: pointer; }
.pos-nav__toggle:hover { background: var(--color-blue-50); }
.pos-nav__toggle svg { transition: transform 150ms ease; }
.pos-nav__toggle[aria-expanded="false"] svg { transform: rotate(-90deg); } /* right when closed, down when open */
@media (prefers-reduced-motion: reduce) { .pos-nav__toggle svg { transition: none; } }

/* Open-questions banner inside prose */
.pos-prose .c-banner { margin: 0 0 var(--spacing-block); }
.pos-prose .c-banner p, .pos-prose .c-banner ul { margin: 0; }
.c-banner--warning { color: var(--color-blue-900); }

/* kode buttons: white on orange-600 is 2.31:1 and orange ghost text is 2.31:1.
   Keep the orange fill (navy text on it is 7.12:1) and make ghost text navy. */
.c-btn--primary { color: var(--color-blue-900); }
.c-btn:where(.c-btn--ghost) { color: var(--color-blue-900); }
.c-btn--ghost[aria-current="page"] { background: var(--color-blue-100); }
/* Ghost buttons in the navy header */
.pos-on-dark .c-btn:where(.c-btn--ghost) { color: var(--color-white); }
.pos-on-dark .c-btn--ghost:hover, .pos-on-dark .c-btn--ghost[aria-current="page"] { background: var(--color-blue-700); }

/* Headings and <main> receive focus only programmatically (skip link, after a
   Turbo visit) so screen readers announce them. They aren't controls, so no ring. */
main[tabindex="-1"]:focus, h1[tabindex="-1"]:focus { outline: none; }

/* Worked examples on level pages: native <details>, keyboard support built in */
.pos-example { border-left: 4px solid var(--color-blue-200); padding-left: var(--spacing-dense); }
.pos-example > summary { cursor: pointer; font-weight: 600; width: fit-content; min-height: 1.5rem; }
.pos-example[open] > summary { margin-bottom: var(--spacing-related); }
.pos-example p { margin-bottom: var(--spacing-related); }

/* KODE Kanban flow diagram (/how-we-work): a column on narrow screens, a row of six from lg */
.pos-flow { display: flex; flex-direction: column; gap: var(--spacing-group); }
.pos-flow__steps { display: grid; gap: var(--spacing-dense); }
.pos-flow__step { position: relative; display: grid; grid-template-columns: 2rem 1fr; column-gap: var(--spacing-group); align-content: start; }
.pos-flow__num { grid-row: span 2; width: 2rem; height: 2rem; border-radius: 9999px; display: grid; place-items: center;
  background: var(--color-blue-900); color: var(--color-white); font-weight: 600; position: relative; z-index: 1; }
.pos-flow__step--last .pos-flow__num { background: var(--color-orange-600); color: var(--color-blue-900); } /* 7.12:1 */
.pos-flow__step:not(:last-child)::before { content: ""; position: absolute; left: calc(1rem - 1px); top: 2rem; bottom: calc(-1 * var(--spacing-dense)); width: 2px; background: var(--color-blue-200); }
.pos-flow__name { font-size: 1.125rem; line-height: 1.75rem; font-weight: 600; }
.pos-flow__who { font-size: var(--pos-text-meta); line-height: 1.25rem; color: var(--pos-color-text-subtle); }
.pos-flow__ai { padding: var(--spacing-related) var(--spacing-group); border-radius: var(--radius-md); background: var(--color-blue-50); box-shadow: inset 0 0 0 1px var(--color-blue-200); }
.pos-flow__loop { color: var(--pos-color-text-subtle); }
@media (min-width: 64rem) {
  .pos-flow__steps { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0; }
  .pos-flow__step { grid-template-columns: 1fr; padding-right: var(--spacing-group); row-gap: var(--spacing-related); }
  .pos-flow__num { grid-row: auto; }
  .pos-flow__step:not(:last-child)::before { left: 2.5rem; right: 0.5rem; top: calc(1rem - 1px); bottom: auto; width: auto; height: 2px; }
}

/* "You are here" bar on each How we work step page */
.pos-steps { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; max-width: var(--pos-measure); gap: var(--spacing-related) var(--spacing-group); }
.pos-steps ol { display: flex; flex-wrap: wrap; gap: var(--spacing-inline); }
.pos-steps ol a { display: inline-flex; align-items: center; gap: var(--spacing-related); min-height: 2.75rem; padding: 0 var(--spacing-related);
  border-radius: var(--radius-sm); color: var(--color-blue-900); text-decoration: none; font-size: var(--pos-text-meta); }
.pos-steps ol a:hover { background: var(--color-blue-50); }
.pos-steps__num { width: 1.5rem; height: 1.5rem; border-radius: 9999px; display: grid; place-items: center; flex: none;
  box-shadow: inset 0 0 0 2px var(--color-blue-200); font-weight: 600; }
.pos-steps a[aria-current="step"] { font-weight: 600; }
.pos-steps a[aria-current="step"] .pos-steps__num { background: var(--color-blue-900); color: var(--color-white); box-shadow: none; }
.pos-steps__all { font-size: var(--pos-text-meta); }
/* Numbers only, except the current step's name; the sidebar already lists every step */
.pos-steps ol a:not([aria-current="step"]) { min-width: 2.75rem; justify-content: center; }
.pos-steps ol a:not([aria-current="step"]) .pos-steps__name { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
@media (max-width: 47.99rem) {
  .pos-steps ol { gap: 0; }
  /* The page heading names the current step, so phones show numbers only */
  .pos-steps ol a { min-width: 2.75rem; padding: 0; justify-content: center; }
  .pos-steps ol a .pos-steps__name { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
}

/* Principle cards: healthy and warning signals */
.pos-signals { display: grid; gap: var(--spacing-group); padding-top: var(--spacing-group); border-top: 1px solid var(--color-gray-300); }
.pos-signals dt { font-size: var(--pos-text-meta); line-height: 1.25rem; font-weight: 600; }
.pos-signals dd { margin: 0; font-size: var(--pos-text-meta); line-height: 1.375rem; }

/* Icon card grids (Quality risk areas, Culture signs) */
.pos-cards { display: grid; gap: var(--spacing-group); grid-template-columns: repeat(auto-fill, minmax(min(15rem, 100%), 1fr)); margin: 0 0 var(--spacing-section); }
.pos-card { display: grid; grid-template-columns: 2.75rem 1fr; column-gap: var(--spacing-group); row-gap: var(--spacing-related); align-content: start;
  padding: var(--spacing-dense); border-radius: var(--radius-lg); background: var(--color-white); box-shadow: inset 0 0 0 1px var(--color-blue-200), inset 0 3px var(--color-orange-600); }
.pos-card__icon { width: 2.75rem; height: 2.75rem; border-radius: var(--radius-md); display: grid; place-items: center; background: var(--color-blue-900); color: var(--color-orange-500); }
.pos-card__name { align-self: center; font-size: 1.125rem; line-height: 1.5rem; font-weight: 600; }
.pos-card__checks { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: var(--spacing-related); }
.pos-card__checks li { font-size: var(--pos-text-meta); line-height: 1.25rem; padding: 0.125rem var(--spacing-related); border-radius: 9999px; background: var(--color-blue-50); box-shadow: inset 0 0 0 1px var(--color-blue-200); }
.pos-card__body { grid-column: 1 / -1; font-size: 1rem; line-height: 1.5rem; }
.pos-card__when { display: block; font-size: var(--pos-text-meta); line-height: 1.25rem; font-weight: 400; color: var(--pos-color-text-subtle); }