/* Mnemonic demo — one page, calm and readable. */

:root {
  --bg: #faf8f4;
  --panel: #ffffff;
  --ink: #1d1c1a;
  --ink-soft: #4a4742;
  --ink-faint: #8c887f;
  --line: #e6e1d6;
  --accent: #2c5f5d;
  --accent-soft: #cfe1df;
  --silent: #d9d4c8;
  --error: #8b2c2c;

  /* Per-channel hues — distinct so the eye can read the skeleton
     at a glance. Saturation is muted; the strength carries through
     opacity / lightness, set inline in JS. */
  --ch-visual:    #2c5f5d;
  --ch-auditory:  #6a4a8c;
  --ch-tactile:   #a04b2c;
  --ch-olfactory: #5a7a2c;
  --ch-gustatory: #a8772c;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-serif, Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.55;
}

.page {
  max-width: 740px;
  margin: 0 auto;
  padding: 3rem 1.5rem 6rem;
}

h1 {
  font-size: 2.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 0.6rem;
}

p { margin: 0 0 0.8rem; }
.hint { color: var(--ink-soft); font-size: 0.95rem; }

.framing { margin-bottom: 2.5rem; }
.thesis { font-size: 1.05rem; color: var(--ink-soft); }

.data-handling {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.2rem;
  margin-bottom: 2rem;
}
.data-handling p { margin: 0; font-size: 0.97rem; }

.corpus-banner {
  background: var(--accent-soft);
  color: var(--ink);
  padding: 0.7rem 1rem;
  border-radius: 4px;
  margin-bottom: 1.5rem;
  font-size: 0.97rem;
}
.corpus-banner-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.corpus-banner .corpus-label {
  color: var(--ink-soft);
}
.corpus-banner .corpus-name {
  font-weight: 600;
}
.corpus-banner .corpus-detail {
  display: block;
  color: var(--ink-soft);
  margin-top: 0.2rem;
  font-size: 0.92rem;
}
.reset-btn {
  margin-left: auto;
  font-size: 0.85rem;
  padding: 0.3rem 0.7rem;
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 3px;
  cursor: pointer;
  font-weight: 500;
}
.reset-btn:hover:not(:disabled) { background: var(--accent); color: #fff; }

section { margin-bottom: 2rem; }

form { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }

input[type="file"], input[type="text"] {
  font: inherit;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  border-radius: 3px;
  flex: 1;
  min-width: 0;
}

input[type="text"]:focus, input[type="file"]:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

button {
  font: inherit;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 3px;
  cursor: pointer;
}
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
button:hover:not(:disabled) {
  background: #234c4a;
}

.error {
  margin-top: 0.6rem;
  color: var(--error);
  font-size: 0.93rem;
}

/* Encode progress */
.encode-progress {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1rem 1.2rem;
  border-radius: 3px;
}
.chunk-summary { font-size: 0.95rem; color: var(--ink-soft); }
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--line);
  border-radius: 4px;
  overflow: hidden;
  margin: 0.6rem 0;
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 250ms linear;
}
.progress-text { font-size: 0.95rem; margin: 0; }
.progress-failed { font-size: 0.9rem; color: var(--error); margin: 0.4rem 0 0; }

/* Query meta */
.query-meta {
  margin-top: 0.6rem;
  font-size: 0.9rem;
  color: var(--ink-faint);
}

/* Results */
.results-empty {
  color: var(--ink-soft);
  font-style: italic;
  padding: 1rem 0;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 1.1rem 1.2rem;
  margin-bottom: 1rem;
}

.card-rank {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin-bottom: 0.4rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Line 1: memory text */
.card-text {
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--ink);
  margin: 0 0 0.9rem;
  white-space: pre-wrap;
}
.card-text.truncated .card-text-full { display: none; }
.card-text.expanded .card-text-short { display: none; }
.card-text-toggle {
  background: none;
  border: none;
  padding: 0;
  margin-left: 0.3rem;
  color: var(--accent);
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: underline;
}

/* Line 2: the five-channel skeleton.
   Every card shows all five chips in the same fixed order. Lit ones
   take their channel hue with opacity scaled to strength; silent ones
   stay grey so silence is visible, not hidden. */
.channels {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  margin: 0 0 0.9rem;
}
.channel {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.45rem 0.3rem;
  border-radius: 3px;
  border: 1px solid var(--line);
  background: #f5f1e8;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
  text-align: center;
  position: relative;
}
.channel.silent {
  background: #f5f1e8;
  color: var(--ink-faint);
  border-color: var(--silent);
}
.channel.active {
  color: #fff;
  border-color: transparent;
  /* background-color is set inline on each card (channel hue +
     alpha derived from strength), so cards visibly differ in their
     lit-channel intensity. */
}
.channel .ch-strength {
  display: block;
  height: 3px;
  width: 100%;
  margin-top: 0.35rem;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 2px;
  overflow: hidden;
}
.channel .ch-strength-fill {
  display: block;
  height: 100%;
  background: rgba(255, 255, 255, 0.85);
}
.channel.silent .ch-strength { background: rgba(0, 0, 0, 0.06); }
.channel.silent .ch-strength-fill { background: rgba(0, 0, 0, 0.06); }

/* Line 3: the honest line. Plain prose, naming only what moved this
   result. */
.honest {
  font-size: 0.97rem;
  color: var(--ink-soft);
  font-style: italic;
  margin: 0;
}

/* Expand drawer for the curious. */
.card details {
  margin-top: 0.8rem;
  border-top: 1px dashed var(--line);
  padding-top: 0.6rem;
}
.card details summary {
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  list-style: none;
}
.card details summary::-webkit-details-marker { display: none; }
.card details[open] summary { color: var(--ink-soft); }

.detail-grid {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.2rem 0.8rem;
  margin-top: 0.6rem;
  font-size: 0.9rem;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  color: var(--ink-soft);
}
.detail-grid .k { color: var(--ink-faint); }
.detail-grid .v { color: var(--ink); }

.legend {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.legend h2 { margin-bottom: 0.6rem; }

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

@media (max-width: 520px) {
  .page { padding: 2rem 1rem 4rem; }
  h1 { font-size: 1.9rem; }
  .channels { gap: 0.3rem; }
  .channel { font-size: 0.7rem; padding: 0.35rem 0.2rem; }
}