/* Fluency: flow figures (src/vignettes/fluency/*). Scoped to the page. */

/* ------------------------------------------------------------ the learning graph */
.page-fluency .cov { display: grid; grid-template-columns: minmax(0, 1fr) 17.5rem; gap: var(--space-6); align-items: start; margin-bottom: var(--space-7); }
.page-fluency .cov__plot { min-width: 0; }
.page-fluency .vig--curves { height: clamp(300px, 27vw, 430px); }
.page-fluency .cov__tick { position: absolute; left: 0; top: 0; pointer-events: none; color: var(--color-muted); font-size: 0.6875rem; white-space: nowrap; font-variant-numeric: tabular-nums; }
.page-fluency .cov__tick[hidden] { display: none; }
.page-fluency .cov__cur { position: absolute; left: 0; top: 0; pointer-events: none; padding: 4px 7px; border-radius: var(--radius-sm); background: oklch(11% 0.02 240 / 0.94); color: var(--color-ink); font-size: 0.6875rem; white-space: nowrap; opacity: 0; transition: opacity var(--dur-base) var(--ease-out); }
.page-fluency .cov__cur.is-on { opacity: 1; }
.page-fluency .cov__em { position: absolute; left: 0; top: 0; pointer-events: none; max-width: 15rem; padding: 6px 9px; border-radius: var(--radius-sm); background: oklch(11% 0.02 240 / 0.94); border: 1px solid var(--color-rule-soft); color: var(--color-ink); font-size: var(--text-sm); line-height: 1.3; opacity: 0; transition: opacity var(--dur-base) var(--ease-out); }
.page-fluency .cov__em.is-on { opacity: 1; }

/* the day slider: the keyboard and touch twin of the crosshair, aligned to the plot's day axis */
.page-fluency .cov__scrubrow { display: grid; grid-template-columns: var(--x0, 52px) minmax(0, 1fr) var(--xr, 22px); align-items: center; margin-top: var(--space-2); cursor: pointer; }
.page-fluency .cov__scrubrow .mono { color: var(--color-muted); font-size: 0.6875rem; }
.page-fluency .cov__scrub { -webkit-appearance: none; appearance: none; width: calc(100% + 16px); margin: 0 -8px; height: 32px; background: transparent; cursor: pointer; }
.page-fluency .cov__scrub::-webkit-slider-runnable-track { height: 2px; border-radius: 2px; background: var(--color-rule); }
.page-fluency .cov__scrub::-moz-range-track { height: 2px; border-radius: 2px; background: var(--color-rule); }
.page-fluency .cov__scrub::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; margin-top: -7px; border-radius: 50%; background: var(--color-accent); box-shadow: 0 0 0 3px var(--color-paper), 0 0 12px oklch(83% 0.145 78 / 0.55); }
.page-fluency .cov__scrub::-moz-range-thumb { width: 16px; height: 16px; border: 0; border-radius: 50%; background: var(--color-accent); box-shadow: 0 0 0 3px var(--color-paper), 0 0 12px oklch(83% 0.145 78 / 0.55); }
.page-fluency .cov__scrub:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; border-radius: var(--radius-sm); }

/* the key: legend + the value of every topic at the chosen day */
.page-fluency .cov__key { padding-top: var(--space-2); }
.page-fluency .cov__day { color: var(--color-muted); font-size: 0.6875rem; padding-bottom: var(--space-3); border-bottom: var(--rule); }
.page-fluency .cov__day b { color: var(--color-ink); font: 600 var(--text-sm)/1 var(--font-mono); letter-spacing: 0; margin: 0 2px; }
.page-fluency .cov__list { list-style: none; margin: var(--space-2) 0 0; padding: 0; display: grid; gap: 2px; }
.page-fluency .cov__row { width: 100%; display: grid; grid-template-columns: 18px minmax(0, 1fr) auto; align-items: center; gap: var(--space-3); min-height: 34px; padding: 4px var(--space-2); border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--color-muted-hi); font: 400 var(--text-sm)/1.25 var(--font-body); text-align: left; cursor: pointer; transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out); }
.page-fluency .cov__line { width: 18px; height: 3px; border-radius: 2px; background: var(--c); }
.page-fluency .cov__name { min-width: 0; }
.page-fluency .cov__val { font: 600 var(--text-sm)/1 var(--font-body); font-variant-numeric: tabular-nums; color: var(--color-ink); min-width: 3.2em; text-align: right; }
.page-fluency .cov__row.is-emph, .page-fluency .cov__row[aria-pressed="true"] { background: var(--color-paper-3); color: var(--color-ink); }
.page-fluency .cov__row[aria-pressed="true"] { box-shadow: inset 2px 0 0 var(--color-accent); }
.page-fluency .cov.has-emph .cov__row:not(.is-emph) { color: var(--color-muted); }
@media (hover: hover) and (pointer: fine) { .page-fluency .cov__row:hover { background: var(--color-paper-3); } }
.page-fluency .cov__note { margin-top: var(--space-4); color: var(--color-muted); font-size: 0.6875rem; }
.page-fluency #cov-rows tr { transition: background-color var(--dur-fast) var(--ease-out); }
@media (hover: hover) and (pointer: fine) { .page-fluency #cov-rows tr:hover { background: var(--color-paper-2); } }

@media (max-width: 900px) {
  .page-fluency .cov { grid-template-columns: minmax(0, 1fr); gap: var(--space-5); }
  .page-fluency .cov__list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px var(--space-3); }
}
@media (max-width: 760px) {
  .page-fluency .vig--curves { height: 290px; margin: 0 calc(-1 * var(--space-2)); }
  .page-fluency .cov__scrub { height: 44px; }
}
@media (max-width: 520px) {
  .page-fluency .cov__list { grid-template-columns: minmax(0, 1fr); }
}

/* ------------------------------------------------------------ four ways it shows up */
.page-fluency .fmt__grid { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: var(--space-7); align-items: center; }
.page-fluency .fmt__list { grid-template-columns: minmax(0, 1fr); }
.page-fluency .fmt__list li { position: relative; padding-left: var(--space-5); border-radius: 0; cursor: default; transition: background-color var(--dur-fast) var(--ease-out); outline-offset: -2px; }
.page-fluency .fmt__list li::before { content: ""; position: absolute; left: 0; top: calc(var(--space-5) + 0.55em); width: 7px; height: 7px; border-radius: 50%; border: 1.5px solid var(--color-muted); transition: background-color var(--dur-fast) var(--ease-out), border-color var(--dur-fast); }
.page-fluency .fmt__list li[data-st="3"]::before { border-color: var(--color-alert); }
.page-fluency .fmt__list li.is-on::before { background: var(--color-accent); border-color: var(--color-accent); }
.page-fluency .fmt__list li[data-st="3"].is-on::before { background: var(--color-alert); border-color: var(--color-alert); }
.page-fluency .vig--formats { height: clamp(420px, 38vw, 580px); }
.page-fluency .fmt__lab { position: absolute; left: 0; top: 0; pointer-events: none; padding: 4px 8px; border-radius: var(--radius-sm); background: oklch(11% 0.02 240 / 0.9); color: var(--color-muted-hi); font-size: 0.6875rem; white-space: nowrap; transition: color var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out); }
.page-fluency .fmt__lab.is-on { color: var(--color-ink); }
.page-fluency .fmt__lab--core { color: var(--color-accent-hi); }
@media (max-width: 900px) {
  .page-fluency .fmt__grid { grid-template-columns: minmax(0, 1fr); gap: var(--space-4); }
  .page-fluency .vig--formats { order: -1; height: 360px; margin: 0 calc(-1 * var(--gutter)); }
}

/* without the figures the page still reads: the key and slider only make sense beside the graph */
.no-vig .page-fluency .cov { display: none; }
.no-vig .page-fluency .fmt__grid { grid-template-columns: minmax(0, 1fr); }
@media (min-width: 761px) { .no-vig .page-fluency .fmt__list { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* phones: the sample note wraps before it reaches the day dial (they collided at 390 px) */
@media (max-width: 760px) { .page-fluency .scene__note { max-width: calc(100% - 2 * var(--gutter) - 72px); } }