/* ------------------------------------------------------------------
   Extra styles for the interactive method figure (DiT panel).
   Adds: the start/end trajectory legend, the scrubbable denoising
   slider, and the clickable denoising-step chips.
   Loaded after index.css; nothing here overrides unrelated rules.
   ------------------------------------------------------------------ */

/* ---- legend: start state / trajectory / end state ---------------- */
.mf-dit-legend {
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  gap: 0.85rem; flex-wrap: wrap;
  padding: 0.34rem 0.4rem 0.06rem;
  font-size: 0.62rem; color: #6b7280; line-height: 1.2;
}
.mf-lg { display: inline-flex; align-items: center; gap: 0.3rem; white-space: nowrap; }
.mf-lg i { display: inline-block; flex: 0 0 auto; }
.mf-lg-d { width: 8px; height: 8px; border-radius: 50%; }
.mf-lg-start { background: #8f9fb4; }
.mf-lg-end { background: #ff7a33; }
.mf-lg-line {
  width: 24px; height: 2px; border-radius: 1px;
  background: linear-gradient(90deg, #8f9fb4, #ff7a33);
}

/* ---- scrubber ---------------------------------------------------- */
.mf-dit-scrub-row {
  display: flex; align-items: center; gap: 0.45rem;
  width: 100%; max-width: 430px;
}
.mf-dit-play {
  flex: 0 0 auto; width: 21px; height: 21px; padding: 0;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid #d7dbe1; border-radius: 50%; background: #fff;
  color: #e0662a; font-size: 0.5rem; line-height: 1; cursor: pointer;
  transition: border-color .15s, color .15s;
}
.mf-dit-play.is-paused { font-size: 0.6rem; padding-left: 1px; }
.mf-dit-play:hover { border-color: #e0662a; }

.mf-dit-scrub {
  flex: 1 1 auto; min-width: 0; height: 4px; margin: 0;
  -webkit-appearance: none; appearance: none;
  border-radius: 3px; outline: none; cursor: pointer;
  background: linear-gradient(90deg, #c3c9d2 0%, #edb894 72%, #e0662a 86%, #e0662a 100%);
}
.mf-dit-scrub::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 13px; height: 13px; border-radius: 50%;
  background: #e0662a; border: 2px solid #fff; cursor: grab;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.28);
}
.mf-dit-scrub:active::-webkit-slider-thumb { cursor: grabbing; }
.mf-dit-scrub::-moz-range-thumb {
  width: 13px; height: 13px; border-radius: 50%;
  background: #e0662a; border: 2px solid #fff; cursor: grab;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.28);
}
.mf-dit-scrub:focus-visible { box-shadow: 0 0 0 2px rgba(224, 102, 42, 0.35); }
.mf-dit-read {
  flex: 0 0 auto; min-width: 10.4em; text-align: right;
  font-size: 0.58rem; color: #6b7280;
  font-variant-numeric: tabular-nums;
}

/* ---- step chips: now clickable and genuinely synced --------------- */
.mf-step-b { cursor: pointer; outline: none; }
.mf-step-b:hover { border-color: #f0b48c; }
.mf-step-b:focus-visible { border-color: #e0662a; box-shadow: 0 0 0 2px rgba(224, 102, 42, 0.28); }
.mf-step-b.is-on .mf-step-lab { color: #e0662a; font-weight: 600; }
.mf-step-b.is-done { opacity: 0.42; }

/* One chip per REAL Euler step — there are nine of them, so the chips are
   compact: a two-pair point/global stack and the bare step number. The row
   never fakes a count, so it must fit whatever the data says. */
.mf-steps-row-n { gap: 0.22rem; }
.mf-steps-axis {
  font-size: 0.55rem; color: #9aa0a6; align-self: flex-end;
  padding-bottom: 3px; margin-right: 0.1rem; white-space: nowrap;
}
.mf-step-c { padding: 3px 4px; gap: 2px; border-radius: 6px; }
.mf-step-c .mf-step-stack { height: 13px; gap: 1.5px; }
.mf-step-c .mf-step-stack i { width: 3px; }
.mf-step-c .mf-step-lab { font-size: 0.56rem; font-variant-numeric: tabular-nums; }
.mf-steps-foot {
  font-size: 0.56rem; color: #a4a9b1; text-align: center;
  font-style: italic; margin-top: -0.15rem;
}

/* ---- "post-trained" qualifier on the downstream output cards ------ */
/* A quiet outlined pill under the card title, present only on the two outputs
   that require post-training. Its own line, so it never squeezes the title. */
/* the outer span is a plain block so the pill follows whatever text-align the
   page gives the caption (centred inside .has-text-centered, left elsewhere) */
.mf-w figcaption .mf-tag { display: block; margin-top: 0.2rem; line-height: 1; }
.mf-w figcaption .mf-tag i {
  display: inline-block; font-style: normal;
  font-size: 0.5rem; font-weight: 600; letter-spacing: 0.07em;
  text-transform: uppercase; white-space: nowrap;
  color: #c2601f; background: rgba(224, 102, 42, 0.07);
  border: 1px solid rgba(224, 102, 42, 0.34); border-radius: 999px;
  padding: 0.06rem 0.36rem; line-height: 1.5;
}

@media screen and (max-width: 860px) {
  .mf-dit-read { display: none; }
  .mf-dit-legend { gap: 0.5rem; font-size: 0.56rem; }
  .mf-steps-axis { display: none; }
  .mf-step-c { padding: 2px 3px; }
  .mf-w figcaption .mf-tag i { font-size: 0.46rem; padding: 0.04rem 0.28rem; }
}


/* Compact mobile pipeline, with the full three-column figure on desktop. */
.mf-mobile-tabs { display: none; }
.mf-fcol[hidden] { display: none !important; }
.mf-w:focus-visible, .mf-pio-inline:focus-visible, .mf-dit-play:focus-visible {
  outline: 3px solid #e0662a; outline-offset: 2px;
}

@media screen and (max-width: 760px) {
  #method-figure .mf-stage { padding: 0.65rem; }
  .mf-head { margin-bottom: 0.65rem; }
  .mf-hint { font-size: 0.75rem; }
  .mf-mobile-tabs:not([hidden]) {
    display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.3rem; padding: 0.25rem; margin-bottom: 0.75rem;
    border-radius: 12px; background: #f1f3f5;
  }
  .mf-mobile-tab {
    min-height: 44px; padding: 0.45rem 0.2rem; border: 1px solid transparent;
    border-radius: 9px; background: transparent; color: #505968;
    font: inherit; font-size: 0.8rem; font-weight: 600; cursor: pointer;
  }
  .mf-mobile-tab span { color: #777f8b; margin-right: 0.1rem; }
  .mf-mobile-tab[aria-selected="true"] {
    color: #a94312; background: #fff; border-color: #eec6ad;
    box-shadow: 0 1px 3px rgba(36, 42, 50, 0.08);
  }
  .mf-mobile-tab[aria-selected="true"] span { color: #a94312; }
  .mf-mobile-tab:focus-visible { outline: 3px solid #e0662a; outline-offset: 1px; }
  .mf-flow { display: block; }
  .mf-flow > .mf-arrow { display: none; }
  .mf-fcol { width: 100%; }
  .mf-fcol-inputs, .mf-fcol-outputs {
    display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.55rem;
  }
  .mf-col-label { grid-column: 1 / -1; font-size: 0.72rem; color: #687384; }
  .mf-w figcaption { font-size: 0.75rem; padding: 0.4rem 0.3rem; }
  .mf-w figcaption .mf-tag i { font-size: 0.54rem; }
  .mf-dino-card {
    grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }
  .mf-dino-card .mf-w-img { height: 100%; object-fit: cover; }
  .mf-dino-card .mf-pio-inline {
    display: flex; flex-direction: column; justify-content: center; padding: 0.4rem;
    border-top: 0; border-left: 1px solid #eceef1;
  }
  .mf-dino-card .mf-pio-inline span { font-size: 0.65rem; line-height: 1.4; }
  .mf-dino-card figcaption { grid-column: 1 / -1; }
  .mf-policy-card { grid-column: 1 / -1; }
  .mf-policy-card .mf-w-vid { aspect-ratio: 16 / 9; object-fit: contain; }
  .mf-fcol-dit .mf-w-tall { flex: none; }
  .mf-dit-legend { font-size: 0.64rem; gap: 0.4rem 0.6rem; padding-top: 0.5rem; }
  .mf-dit-steps { gap: 0.55rem; padding: 0.65rem 0.5rem 0.3rem; }
  .mf-steps-head { font-size: 0.72rem; color: #687384; }
  .mf-dit-scrub-row { flex-wrap: wrap; gap: 0.25rem 0.5rem; }
  .mf-dit-play { width: 44px; height: 44px; font-size: 0.7rem; }
  .mf-dit-play.is-paused { font-size: 0.8rem; }
  .mf-dit-scrub { height: 28px; background-size: 100% 4px; background-repeat: no-repeat; background-position: center; }
  .mf-dit-scrub::-webkit-slider-thumb { width: 22px; height: 22px; }
  .mf-dit-scrub::-moz-range-thumb { width: 22px; height: 22px; }
  .mf-dit-read { display: block; width: 100%; text-align: center; font-size: 0.7rem; }
  .mf-steps-row-n {
    display: grid; width: 100%; max-width: 350px;
    grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0.3rem;
  }
  .mf-step-c { min-height: 44px; justify-content: center; padding: 4px; }
  .mf-step-c .mf-step-lab { font-size: 0.7rem; }
  .mf-steps-foot { font-size: 0.66rem; line-height: 1.4; }
}