:root {
  --abyss: #0e1030;
  --tide: #22275f;
  --fluid: #3b43f5;
  --moon: #ece9ff;
  --mist: #a3a5d1;
  --lamp: #ffc861;

  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Martian Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;

  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html { background: var(--abyss); }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(60vmax 60vmax at 28% 46%, rgba(59, 67, 245, 0.22), transparent 62%),
    var(--abyss);
  color: var(--moon);
  font: 400 1rem/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration-color: rgba(236, 233, 255, 0.4); text-underline-offset: 0.18em; }
a:hover { text-decoration-color: var(--moon); }

:focus-visible { outline: 2px solid var(--lamp); outline-offset: 4px; }

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

/* ---------- layout ---------- */

.page {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 1fr);
  max-width: 1280px;
  margin: 0 auto;
  min-height: 100vh;
}

.stage {
  position: sticky;
  top: 0;
  height: 100vh;
  display: grid;
  grid-template-rows: 1fr auto;
  padding: 2rem 1rem 1.5rem;
}

.ball {
  position: relative;
  min-height: 0;
  cursor: grab;
  touch-action: none;

}
.ball.is-dragging { cursor: grabbing; }
.ball:focus-visible { outline-offset: -8%; }
.ball canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

/* A soft floor shadow under the sphere. */
.ball::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 5%;
  width: min(54%, 40vh);
  height: 5%;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(2, 3, 18, 0.75), transparent);
  pointer-events: none;
  z-index: -1;
}

.ball.no-gl {
  display: grid;
  place-items: center;
  border-radius: 0;
  cursor: default;
  padding: 2rem;
  text-align: center;
  color: var(--mist);
  font-family: var(--serif);
  font-size: 1.25rem;
}

.hint {
  margin: 0.25rem 0 0;
  text-align: center;
  color: var(--mist);
  font-size: 0.9rem;
}

.panel {
  padding: clamp(2rem, 6vh, 4.5rem) clamp(1.25rem, 4vw, 3.5rem) 3rem 1rem;
  max-width: 36rem;
}

/* ---------- intro ---------- */

.mark {
  margin: 0;
  font: 500 clamp(5rem, 11vw, 8.5rem)/0.82 var(--serif);
  font-variation-settings: "opsz" 72;
  letter-spacing: -0.045em;
  font-feature-settings: "lnum";
}

.lede {
  margin: 0.9rem 0 0;
  font: 400 1.55rem/1.25 var(--serif);
  font-style: italic;
}

.byline {
  margin: 0.6rem 0 0;
  color: var(--mist);
  font-size: 0.95rem;
}

/* ---------- ask ---------- */

.ask { margin-top: 2.75rem; }

.ask label {
  display: block;
  margin-bottom: 0.6rem;
  font-weight: 500;
}

.ask-row { display: flex; gap: 0.6rem; }

.ask input {
  flex: 1;
  min-width: 0;
  padding: 0.85rem 1.05rem;
  border: 1px solid rgba(163, 165, 209, 0.35);
  border-radius: 14px;
  background: rgba(14, 16, 48, 0.6);
  color: var(--moon);
  font: 400 1.15rem/1.3 var(--serif);
}
.ask input::placeholder { color: rgba(163, 165, 209, 0.7); font-style: italic; }
.ask input:focus-visible { outline-offset: 2px; border-color: transparent; }

button {
  font: 600 1rem/1 var(--sans);
  cursor: pointer;
}

#askButton {
  flex: none;
  padding: 0 1.3rem;
  border: 0;
  border-radius: 999px;
  background: var(--moon);
  color: var(--abyss);
  transition: transform 120ms ease, background-color 120ms ease;
}
#askButton:hover { background: #fff; }
#askButton:active { transform: scale(0.97); }
#askButton:disabled { opacity: 0.55; cursor: progress; }

.note {
  margin: 0.7rem 0 0;
  color: var(--mist);
  font-size: 0.9rem;
}

/* ---------- reading ---------- */

.reading { margin-top: 2.5rem; }

.trace {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1rem;
  border-left: 1px solid rgba(59, 67, 245, 0.7);
  font: 400 0.76rem/1.7 var(--mono);
  color: var(--mist);
}
.trace li { animation: line-in 260ms ease-out both; }
.trace li:last-child { color: var(--moon); }

@keyframes line-in {
  from { opacity: 0; transform: translateX(-4px); }
  to { opacity: 1; transform: none; }
}

.answer {
  margin: 1.4rem 0 0;
  min-height: 1.2em;
  font: italic 400 clamp(1.9rem, 3.4vw, 2.6rem)/1.12 var(--serif);
  font-variation-settings: "opsz" 60;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.reading.is-thinking .confidence,
.reading.is-thinking .quiet { visibility: hidden; }
.reading.is-thinking .answer::before {
  content: "\2026";
  color: var(--mist);
}

.confidence {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-top: 1.1rem;
  color: var(--mist);
  font-size: 0.92rem;
}
.confidence p { margin: 0; }
.confidence strong { color: var(--lamp); font-weight: 600; font-variant-numeric: tabular-nums; }

.meter {
  flex: none;
  width: 7.5rem;
  height: 6px;
  border-radius: 6px;
  background: rgba(163, 165, 209, 0.2);
  overflow: hidden;
}
.meter-fill {
  display: block;
  height: 100%;
  width: var(--level, 0%);
  background: var(--lamp);
  border-radius: inherit;
  transition: width 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.quiet {
  margin-top: 1.2rem;
  padding: 0.55rem 0.95rem;
  border: 1px solid rgba(163, 165, 209, 0.35);
  border-radius: 999px;
  background: transparent;
  color: var(--moon);
  font-weight: 500;
  font-size: 0.9rem;
}
.quiet:hover { border-color: var(--moon); }
.quiet.small { margin: 0; padding: 0.35rem 0.75rem; font-size: 0.82rem; }

/* ---------- history ---------- */

.log { margin-top: 3.5rem; }

.log-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.log h2 {
  margin: 0;
  font: 500 1.35rem/1.2 var(--serif);
}

.history {
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
}
.history li {
  padding: 0.95rem 0;
  border-top: 1px solid rgba(163, 165, 209, 0.18);
}
.history li.empty { color: var(--mist); border-top: 0; padding-top: 0.25rem; }
.history p { margin: 0; }
.h-q { color: var(--mist); font-size: 0.92rem; }
.h-a { margin-top: 0.15rem !important; font: italic 400 1.2rem/1.3 var(--serif); }
.h-c { margin-top: 0.25rem !important; color: var(--mist); font-size: 0.8rem; }

.foot {
  margin-top: 3.5rem;
  color: var(--mist);
  font-size: 0.85rem;
  max-width: 30rem;
}

/* ---------- small screens ---------- */

@media (max-width: 860px) {
  /* One column. The panel dissolves so the ball can sit between the title and the question. */
  .page { display: flex; flex-direction: column; padding: 1.5rem 1rem 0; }
  .panel { display: contents; }
  .intro { order: 1; }
  .stage { order: 2; position: relative; height: auto; padding: 0.5rem 0 0; }
  .ask { order: 3; margin-top: 1.5rem; }
  .reading { order: 4; }
  .log { order: 5; }
  .foot { order: 6; padding-bottom: 3rem; }
  .ball { width: min(100%, 440px); aspect-ratio: 1; margin: 0 auto; }
  .mark { font-size: clamp(3.75rem, 19vw, 5.5rem); }
  .lede { font-size: 1.3rem; margin-top: 0.5rem; }
  body {
    background:
      radial-gradient(90vw 90vw at 50% 24rem, rgba(59, 67, 245, 0.24), transparent 62%),
      var(--abyss);
  }
}

@media (max-width: 420px) {
  .ask-row { flex-direction: column; }
  #askButton { padding: 0.95rem 1.3rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}