/* Foundations kit: the shared look for the Ventures Basic games.
   Pixel-art set: cream cards with thick ink borders and hard shadows on a
   light grid, Atkinson Hyperlegible throughout. Each game sets --fk-unit
   (its accent color) through FK.init({accent}).

   Accessibility floor for every game:
   - text 16px minimum (body 18px), contrast 4.5:1 or better
   - touch targets 48px minimum
   - visible focus ring, keyboard operable, reduced motion respected */

@import url("https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:ital,wght@0,400;0,700;1,400&display=swap");

:root {
  color-scheme: light;
  --fk-bg: #e4eaee;
  --fk-grid: rgba(27, 36, 48, 0.06);
  --fk-paper: #fffaf0;
  --fk-paper-2: #f3ead6;
  --fk-ink: #1b2430;
  --fk-muted: #4a5663;
  --fk-line: #b9c4cc;
  --fk-unit: #1d6b88; /* set per game */
  --fk-unit-ink: #ffffff;
  --fk-unit-soft: #e1eef3;
  --fk-ok: #1e7a4a;
  --fk-ok-soft: #dcf1e5;
  --fk-bad: #b3261e;
  --fk-bad-soft: #f9e0dd;
  --fk-warn: #8a5300;
  --fk-warn-soft: #fbecd0;
  --fk-focus: #0b57d0;
  --fk-font: "Atkinson Hyperlegible", "Segoe UI", system-ui, -apple-system,
    sans-serif;
  --fk-border: 3px solid var(--fk-ink);
  --fk-shadow: 4px 4px 0 var(--fk-ink);
  --fk-shadow-sm: 2px 2px 0 var(--fk-ink);
  --fk-radius: 4px;
  --fk-tap: 48px;
}

[hidden] {
  display: none !important;
}

.fk-page,
body.fk-page {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background-color: var(--fk-bg);
  background-image: linear-gradient(var(--fk-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--fk-grid) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--fk-ink);
  font-family: var(--fk-font);
  font-size: 18px;
  line-height: 1.45;
  -webkit-text-size-adjust: 100%;
  overflow-wrap: anywhere;
}
.fk-page *,
.fk-page *::before,
.fk-page *::after {
  box-sizing: border-box;
}
.fk-page img {
  max-width: 100%;
}
.fk-page :focus-visible {
  outline: 4px solid var(--fk-focus);
  outline-offset: 3px;
}

/* ---------- layout ---------- */
.fk-wrap {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 16px clamp(12px, 3vw, 28px) 28px;
}
.fk-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: 16px;
}
.fk-title {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-right: auto;
  min-width: 0;
}
.fk-title h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  line-height: 1.1;
  font-weight: 700;
}
.fk-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fk-muted);
}
.fk-badge {
  display: inline-block;
  padding: 2px 10px;
  border: 2px solid var(--fk-ink);
  background: var(--fk-unit);
  color: var(--fk-unit-ink);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 1rem;
  line-height: 1.4;
}
.fk-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- cards and panels ---------- */
.fk-card {
  background: var(--fk-paper);
  border: var(--fk-border);
  box-shadow: var(--fk-shadow);
  border-radius: var(--fk-radius);
  padding: clamp(14px, 2.4vw, 24px);
}
.fk-card + .fk-card {
  margin-top: 16px;
}
.fk-prompt {
  margin: 0;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.2;
  font-weight: 700;
}
.fk-prompt em,
.fk-prompt mark {
  font-style: normal;
  background: none;
  color: var(--fk-unit);
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
}

/* L1 line under English text */
.fk-l1 {
  display: block;
  margin-top: 6px;
  font-size: 1rem;
  font-weight: 400;
  color: var(--fk-muted);
  line-height: 1.5;
}
.fk-l1:empty {
  display: none;
}
.fk-l1[dir="rtl"] {
  text-align: right;
}

/* ---------- buttons ---------- */
.fk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--fk-tap);
  min-width: var(--fk-tap);
  padding: 8px 18px;
  border: var(--fk-border);
  border-radius: var(--fk-radius);
  background: var(--fk-paper);
  color: var(--fk-ink);
  box-shadow: var(--fk-shadow-sm);
  font: 700 1.05rem/1.2 var(--fk-font);
  cursor: pointer;
  touch-action: manipulation;
  text-align: center;
  -webkit-tap-highlight-color: transparent;
}
.fk-btn:hover {
  background: var(--fk-unit-soft);
}
.fk-btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}
.fk-btn[disabled],
.fk-btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}
.fk-btn.primary {
  background: var(--fk-unit);
  color: var(--fk-unit-ink);
}
.fk-btn.primary:hover {
  filter: brightness(1.08);
}
.fk-btn.big {
  min-height: 56px;
  font-size: 1.2rem;
  padding: 10px 26px;
}
.fk-btn.icon {
  padding: 8px 12px;
}
.fk-btn svg {
  width: 1.2em;
  height: 1.2em;
  flex: none;
}
.fk-btn:has(.fk-l1:not([hidden]):not(:empty)) {
  flex-direction: column;
  gap: 2px;
}
.fk-btn .fk-l1 {
  margin-top: 0;
  color: inherit;
  font-size: max(1rem, 0.9em);
  font-weight: 400;
}
.fk-btn.is-right {
  background: var(--fk-ok);
  color: #fff;
}
.fk-btn.is-wrong {
  background: var(--fk-bad-soft);
  color: var(--fk-bad);
  text-decoration: line-through;
}
.fk-btn.is-shown {
  background: var(--fk-warn-soft);
  color: var(--fk-warn);
}

/* answer choice grid */
.fk-choices {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
  gap: 12px;
  margin-top: 16px;
}
.fk-choices .fk-btn {
  min-height: 60px;
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  width: 100%;
}

/* ---------- type and speak answer boxes ---------- */
.fk-answer {
  margin-top: 16px;
}
.fk-typebox {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.fk-input {
  flex: 1 1 220px;
  min-height: 56px;
  padding: 10px 14px;
  border: var(--fk-border);
  border-radius: var(--fk-radius);
  background: #fff;
  color: var(--fk-ink);
  font: 700 1.3rem/1.2 var(--fk-font);
}
.fk-input::placeholder {
  color: #6b7682;
  font-weight: 400;
}
.fk-speakbox {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}
.fk-mic {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  padding: 0;
}
.fk-mic svg {
  width: 34px;
  height: 34px;
}
.fk-mic.is-listening {
  background: var(--fk-bad);
  color: #fff;
  animation: fk-pulse 1.1s ease-in-out infinite;
}
@keyframes fk-pulse {
  50% {
    box-shadow: 0 0 0 10px rgba(179, 38, 30, 0.2);
  }
}
.fk-heard {
  font-size: 1.1rem;
  min-height: 1.5em;
}
.fk-heard b {
  font-size: 1.3rem;
}

/* feedback line (aria-live) */
.fk-feedback {
  margin-top: 14px;
  min-height: 1.6em;
  font-size: 1.2rem;
  font-weight: 700;
}
.fk-feedback.ok {
  color: var(--fk-ok);
}
.fk-feedback.bad {
  color: var(--fk-bad);
}
.fk-feedback.warn {
  color: var(--fk-warn);
}
.fk-feedback .fk-l1 {
  font-weight: 400;
}

/* progress squares */
.fk-progress {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.fk-progress i {
  width: 16px;
  height: 16px;
  border: 2px solid var(--fk-ink);
  background: #fff;
}
.fk-progress i.now {
  outline: 3px solid var(--fk-unit);
  outline-offset: 1px;
}
.fk-progress i.first {
  background: var(--fk-ok);
}
.fk-progress i.later {
  background: var(--fk-warn);
}
.fk-progress i.shown {
  background: var(--fk-bad);
}

/* ---------- dialogs (start, end) ---------- */
.fk-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(16, 24, 32, 0.6);
  overflow-y: auto;
}
.fk-dialog {
  width: min(680px, 100%);
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  background: var(--fk-paper);
  border: var(--fk-border);
  box-shadow: 6px 6px 0 var(--fk-ink);
  border-radius: var(--fk-radius);
}
.fk-dialog-head {
  padding: 18px 22px 14px;
  background: var(--fk-unit);
  color: var(--fk-unit-ink);
  border-bottom: var(--fk-border);
}
.fk-dialog-head h2 {
  margin: 0;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  line-height: 1.15;
}
.fk-dialog-head p {
  margin: 6px 0 0;
  font-size: 1.05rem;
}
.fk-dialog-head .fk-l1 {
  color: inherit;
  opacity: 0.92;
}
.fk-dialog-body {
  padding: 18px 22px 22px;
  display: grid;
  gap: 18px;
}
.fk-field > label,
.fk-field > legend {
  display: block;
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 8px;
  padding: 0;
}
.fk-field {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
}
.fk-select {
  width: 100%;
  min-height: 56px;
  padding: 8px 12px;
  border: var(--fk-border);
  border-radius: var(--fk-radius);
  background: #fff;
  color: var(--fk-ink);
  font: 700 1.2rem/1.2 var(--fk-font);
}
.fk-modes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
@media (max-width: 520px) {
  .fk-modes {
    grid-template-columns: 1fr;
  }
}
.fk-mode {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-height: 120px;
  padding: 14px 10px 12px;
  border: var(--fk-border);
  border-radius: var(--fk-radius);
  background: #fff;
  box-shadow: var(--fk-shadow-sm);
  text-align: center;
  cursor: pointer;
}
@media (max-width: 520px) {
  .fk-mode {
    min-height: 0;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    text-align: left;
    column-gap: 12px;
  }
}
.fk-mode input {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}
.fk-mode svg {
  width: 36px;
  height: 36px;
}
.fk-mode b {
  font-size: 1.3rem;
}
.fk-mode small {
  font-size: 1rem;
  color: var(--fk-muted);
}
.fk-mode .fk-l1 {
  margin-top: 0;
}
.fk-mode:has(input:checked) {
  background: var(--fk-unit);
  color: var(--fk-unit-ink);
}
.fk-mode:has(input:checked) small,
.fk-mode:has(input:checked) .fk-l1 {
  color: inherit;
}
.fk-mode:has(input:focus-visible) {
  outline: 4px solid var(--fk-focus);
  outline-offset: 3px;
}
.fk-mode:has(input:disabled) {
  opacity: 0.6;
  cursor: not-allowed;
}
.fk-dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}
.fk-score {
  font-size: clamp(2.6rem, 8vw, 3.6rem);
  font-weight: 700;
  line-height: 1;
  margin: 0;
  text-align: center;
}
.fk-score + p {
  text-align: center;
  margin: 6px 0 0;
}

.fk-credit {
  margin-top: 20px;
  font-size: 1rem;
  color: var(--fk-muted);
  text-align: center;
}
.fk-credit a {
  color: inherit;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

/* Top-bar tools look the same in every game: outline buttons, English
   labels (like the settings button), state shown in the label. */
.fk-tools .fk-btn.primary {
  background: var(--fk-paper);
  color: var(--fk-ink);
}
.fk-tools .fk-btn .fk-l1 {
  display: none;
}
.fk-tools .fk-btn:has(.fk-l1) {
  flex-direction: row;
}

.fk-dialog small {
  font-size: 1rem;
}

.fk-sr {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

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