src/app.css

/* Paper-white research-tool palette. */
:root {
  --bg: #ffffff;
  --panel: #ffffff;
  --panel-2: #f7f8fa;
  --panel-3: #eef1f5;
  --border: #dfe3e9;
  --border-strong: #c3cad4;
  --text: #14181f;
  --text-dim: #5f6b7a;
  --text-faint: #8b95a3;
  --accent: #1d5fd0;
  --accent-soft: #e8effc;
  --green: #1f7a45;
  --green-bg: #e2f3e9;
  --green-border: #a9d8bd;
  --red: #b3392f;
  --red-bg: #fbe9e7;
  --red-border: #eebbb5;
  --amber: #9a6a10;
  --amber-bg: #fdf2dc;
  --mono: 'SF Mono', ui-monospace, 'Cascadia Code', Menlo, Consolas, monospace;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  line-height: 1.25;
  font-weight: 650;
}

button {
  font: inherit;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
button:hover:not(:disabled) {
  background: var(--panel-2);
  border-color: var(--accent);
}
button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
button.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 600;
}
button.primary:hover:not(:disabled) {
  background: #1a54ba;
  border-color: #1a54ba;
}

input,
textarea,
select {
  font: inherit;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 6px 9px;
}
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}
textarea {
  width: 100%;
  resize: vertical;
}
input[type='range'] {
  padding: 0;
  border: none;
  accent-color: var(--accent);
}

code,
.mono {
  font-family: var(--mono);
  font-size: 0.86em;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}

.dim {
  color: var(--text-dim);
}
.small {
  font-size: 12.5px;
}

.badge {
  display: inline-block;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 11.5px;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  background: var(--panel-2);
  white-space: nowrap;
}
.badge.ok {
  color: var(--green);
  border-color: var(--green-border);
  background: var(--green-bg);
}
.badge.bad {
  color: var(--red);
  border-color: var(--red-border);
  background: var(--red-bg);
}
.badge.warn {
  color: var(--amber);
  border-color: #e6cd94;
  background: var(--amber-bg);
}

/* token classification */
.tok-green {
  background: var(--green-bg);
  box-shadow: inset 0 -2px 0 var(--green-border);
  border-radius: 2px;
}
.tok-red {
  background: var(--red-bg);
  box-shadow: inset 0 -2px 0 var(--red-border);
  border-radius: 2px;
}
.tok-neutral {
  background: var(--panel-3);
  border-radius: 2px;
}
.tok-skip {
  opacity: 0.5;
  text-decoration: underline dotted;
}

/**
 * Any box showing generated text. Fixed height rather than max-height so the
 * baseline and the watermarked output line up whatever their lengths are —
 * the two panels are meant to be read against each other.
 */
:root {
  --text-box-h: 268px;
}
.text-box {
  height: var(--text-box-h);
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-2);
  padding: 10px 12px;
  margin: 0;
  white-space: pre-wrap;
  font-size: 14px;
  line-height: 1.9;
}
.text-box.plain {
  background: #fff;
}
/** Sentence-list variant: same footprint, but the children lay themselves out. */
.text-box.list {
  white-space: normal;
  line-height: 1.55;
  display: flex;
  flex-direction: column;
  gap: 5px;
  list-style: none;
  padding: 8px;
}
/* Keep rows at their natural size instead of squashing them to fit. */
.text-box.list > * {
  flex: 0 0 auto;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.data th,
table.data td {
  text-align: left;
  padding: 5px 9px;
  border-bottom: 1px solid var(--border);
}
table.data th {
  color: var(--text-dim);
  font-weight: 550;
  background: var(--panel-2);
}
table.data tr.hl {
  background: var(--accent-soft);
}

/* caret hint for the seed input that invites the user to type */
@keyframes caret-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(29, 95, 208, 0.35);
  }
  50% {
    box-shadow: 0 0 0 5px rgba(29, 95, 208, 0);
  }
}
.awaiting-input {
  animation: caret-pulse 1.4s ease-in-out infinite;
  border-color: var(--accent) !important;
}