/* calc-simple.css — shared surface for the probability calculators
   (hypergeometric, mulligan).

   The goal is one readable answer up front and everything else demoted or
   collapsed. Nothing here changes what is calculated; it only changes what the
   page leads with. Prefix: cs-. Tokens come from content.css. */

.cs-tool {
  display: grid;
  gap: 26px;
}

/* ── Presets (Layer 1: start from an intent, not from four blank fields) ──── */

.cs-presets {
  display: grid;
  gap: 10px;
}

.cs-presets-label {
  margin: 0;
  color: var(--text-2);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cs-preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cs-chip {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-1);
  font-family: var(--font-sans);
  font-size: 0.86rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.cs-chip:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.16);
}

.cs-chip:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.cs-chip[aria-pressed="true"] {
  border-color: rgba(201, 168, 76, 0.55);
  background: rgba(201, 168, 76, 0.16);
  color: var(--accent-soft);
}

.cs-share {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 4px;
}

.cs-share-btn {
  flex: 0 0 auto;
}

.cs-share-note {
  font-size: 0.82rem;
  color: var(--accent-soft);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.cs-share-note.is-visible {
  opacity: 1;
}

.tool-input.is-invalid {
  border-color: #e0655f;
  box-shadow: 0 0 0 1px rgba(224, 101, 95, 0.35);
}

.tool-input.is-invalid:focus-visible {
  outline-color: #e0655f;
}

/* ── Inputs ───────────────────────────────────────────────────────────────── */

.cs-fields {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cs-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.cs-field label {
  color: var(--text-2);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* One shared disclosure carries every field hint plus the formal name of each
   input, so the labels can stay plain without losing the wording players
   search for. */
.cs-glossary {
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.cs-glossary > summary {
  color: var(--text-2);
  cursor: pointer;
  font-size: 0.86rem;
  font-weight: 700;
  list-style: none;
  min-height: 32px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.cs-glossary > summary::-webkit-details-marker {
  display: none;
}

.cs-glossary > summary::before {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  color: var(--accent-soft);
  font-size: 0.8rem;
  line-height: 1;
}

.cs-glossary[open] > summary::before {
  content: "\2212";
}

.cs-glossary > summary:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.cs-glossary-list {
  margin: 12px 0 0;
  display: grid;
  gap: 12px;
}

.cs-glossary-list dt {
  color: var(--text-1);
  font-size: 0.88rem;
  font-weight: 760;
}

.cs-glossary-list dd {
  margin: 3px 0 0;
  color: var(--text-2);
  font-size: 0.86rem;
  line-height: 1.5;
}

.cs-glossary-term {
  color: var(--text-2);
  font-weight: 700;
}

/* ── Primary answer (Layer 1) ─────────────────────────────────────────────── */

/* One live region wrapping every output, so a screen reader hears the headline
   and its supporting numbers as a single update instead of two competing ones. */
.cs-output {
  display: grid;
  gap: 12px;
}

.cs-answer {
  display: grid;
  gap: 12px;
  padding: 22px;
  border: 1px solid rgba(201, 168, 76, 0.22);
  border-radius: var(--radius-md);
  background:
    radial-gradient(ellipse at 12% 0%, rgba(201, 168, 76, 0.12), transparent 62%),
    rgba(255, 255, 255, 0.02);
}

.cs-answer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
}

.cs-answer-value {
  display: block;
  color: var(--accent-soft);
  font-family: var(--font-sans);
  font-size: clamp(2.6rem, 9vw, 3.9rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}

.cs-band {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border: 1px solid var(--cs-band-border, rgba(255, 255, 255, 0.12));
  border-radius: var(--radius-pill);
  background: var(--cs-band-bg, rgba(255, 255, 255, 0.04));
  color: var(--cs-band-text, var(--text-1));
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* An author-level display value outranks the UA's [hidden] rule, so the error
   state needs this or the band keeps showing its stale verdict. */
.cs-band[hidden] {
  display: none;
}

/* The dot is decoration; the band always spells out its meaning in words so no
   reading depends on colour alone. */
.cs-band::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}

.cs-band.is-high {
  --cs-band-bg: rgba(110, 220, 160, 0.12);
  --cs-band-border: rgba(110, 220, 160, 0.3);
  --cs-band-text: #8ee6b8;
}

.cs-band.is-mid {
  --cs-band-bg: rgba(201, 168, 76, 0.14);
  --cs-band-border: rgba(201, 168, 76, 0.34);
  --cs-band-text: var(--accent-soft);
}

.cs-band.is-low {
  --cs-band-bg: rgba(232, 112, 112, 0.12);
  --cs-band-border: rgba(232, 112, 112, 0.28);
  --cs-band-text: var(--red-text);
}

.cs-answer-label {
  margin: 0;
  color: var(--text-2);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cs-answer-caption {
  margin: 0;
  max-width: 62ch;
  color: var(--text-1);
  font-size: 0.98rem;
  line-height: 1.55;
}

.cs-meter {
  height: 6px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
}

.cs-meter-fill {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft));
  transition: width 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Supporting numbers (Layer 2) ─────────────────────────────────────────── */

.cs-stats {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cs-stat {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.022);
}

.cs-stat strong {
  color: var(--text-1);
  font-family: var(--font-sans);
  font-size: 1.16rem;
  font-weight: 780;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.cs-stat span {
  color: var(--text-2);
  font-size: 0.74rem;
  font-weight: 700;
  line-height: 1.35;
}

/* ── Method / next step (Layer 3) ─────────────────────────────────────────── */

.cs-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.cs-method {
  min-width: 0;
}

.cs-method > summary {
  color: var(--text-2);
  cursor: pointer;
  font-size: 0.84rem;
  font-weight: 700;
  list-style: none;
  min-height: 32px;
  display: inline-flex;
  align-items: center;
}

.cs-method > summary::-webkit-details-marker {
  display: none;
}

.cs-method > summary:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.cs-method p {
  margin: 10px 0 0;
  max-width: 68ch;
  color: var(--text-2);
  font-size: 0.86rem;
  line-height: 1.6;
}

.cs-method code {
  color: var(--accent-soft);
  font-size: 0.84rem;
}

.cs-next {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  color: var(--text-2);
  font-size: 0.84rem;
}

.cs-next a {
  color: var(--accent-soft);
  font-weight: 700;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */

@media (max-width: 719px) {
  .cs-tool {
    gap: 22px;
  }

  .cs-answer {
    padding: 18px;
  }

  .cs-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .cs-stat {
    padding: 10px;
  }

  .cs-stat strong {
    font-size: 1rem;
  }

  .cs-stat span {
    font-size: 0.68rem;
  }
}

/* Below the tablet breakpoint the chips become a single scrolling rail. A 2x2
   block of chips pushed the answer panel off the first screen, which is the one
   thing this layout exists to prevent. */
@media (max-width: 719px) {
  .cs-preset-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    /* Bleed to the card edges so the rail reads as scrollable content. */
    margin: 0 -18px;
    padding: 2px 18px;
  }

  .cs-preset-row::-webkit-scrollbar {
    display: none;
  }

  .cs-chip {
    flex: none;
    min-height: 44px;
    scroll-snap-align: start;
  }
}

@media (max-width: 420px) {
  .cs-stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .cs-chip {
    padding: 0 12px;
    font-size: 0.82rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cs-meter-fill {
    transition: none;
  }
}