/* Svar — one stylesheet, no framework, no font from anywhere else.
   The type stack is whatever the reader's system already has. */

:root {
  --ink: #1b1d1f;
  --ink-soft: #5b6167;
  --paper: #fbfaf8;
  --panel: #ffffff;
  --line: #ddd8d0;
  --accent: #2f5d50;
  --warn: #7a5a12;
  --error: #8c2f22;
  --human: #2f5d50;
  --agent: #3c5a7a;
  --inbox: #8a5a1e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 2rem 1rem 4rem;
  background: var(--paper);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

main {
  max-width: 44rem;
  margin: 0 auto;
}

h1 {
  margin: 0 0 .4rem;
  font-size: 1.9rem;
  letter-spacing: -.01em;
}

h2 {
  margin: 0 0 .6rem;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-soft);
}

h3 {
  margin: 1.4rem 0 .5rem;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-soft);
}

.lead {
  margin: 0 0 1.8rem;
  color: var(--ink-soft);
  max-width: 40rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1.1rem 1.2rem;
  margin-bottom: 1.2rem;
}

.note {
  color: var(--ink-soft);
  font-size: .87rem;
  margin: .4rem 0 0;
}

/* --- Language switch --- */

.language {
  display: flex;
  justify-content: flex-end;
  margin-bottom: .6rem;
}

.language-button {
  padding: .2rem .7rem;
  font-size: .8rem;
  letter-spacing: .05em;
  border-radius: 0;
  background: transparent;
  color: var(--accent);
}

.language-button:first-child { border-radius: 4px 0 0 4px; }
.language-button:last-child { border-radius: 0 4px 4px 0; margin-left: -1px; }

.language-button[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
}

/* --- Workspace and key --- */

.fields {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  align-items: flex-end;
  margin-top: .8rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  margin: 0;
  flex: 1 1 12rem;
}

.field--button { flex: 0 0 auto; }

label {
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--ink-soft);
}

input, textarea {
  font: inherit;
  color: inherit;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: .5rem .6rem;
  width: 100%;
}

textarea {
  resize: vertical;
  min-height: 4.5rem;
}

input:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

button {
  font: inherit;
  padding: .5rem 1.1rem;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

button:hover { filter: brightness(1.1); }

button:disabled {
  cursor: default;
  filter: grayscale(.6) brightness(1.25);
}

#forget {
  background: transparent;
  color: var(--accent);
}

/* --- Asking --- */

.actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: .7rem;
}

.actions .note { margin: 0; }

/* --- Messages --- */

.message {
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-radius: 4px;
  padding: .7rem .9rem;
  margin: 0 0 1.2rem;
  background: var(--panel);
}

.message--warn { border-left-color: var(--warn); }
.message--error { border-left-color: var(--error); }

/* --- The answer --- */

.answer {
  margin: 0 0 .8rem;
  font-size: 1.05rem;
}

/* Paragraphs and lists built by markdown.js. pre-wrap keeps the spaces the
   model wrote; line breaks inside a paragraph are <br> elements. */
.answer p,
.answer li {
  white-space: pre-wrap;
}

.answer p { margin: 0 0 .6rem; }
.answer ul,
.answer ol { margin: 0 0 .6rem; padding-left: 1.4rem; }
.answer li { margin-bottom: .2rem; }
.answer > :last-child { margin-bottom: 0; }

.layers {
  margin: 0;
  font-size: .9rem;
  color: var(--ink-soft);
}

.sources {
  margin: 0;
  padding-left: 1.6rem;
}

.source {
  margin-bottom: .9rem;
  color: var(--ink-soft);
}

.source--cited { color: var(--ink); }

.source > span { margin-right: .6rem; }

.layer {
  display: inline-block;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .1rem .45rem;
  border-radius: 3px;
  color: #fff;
  background: var(--ink-soft);
}

.layer--human { background: var(--human); }
.layer--agent { background: var(--agent); }
.layer--inbox { background: var(--inbox); }

.file {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .85rem;
  word-break: break-all;
}

.excerpt {
  margin: .3rem 0 0;
  font-size: .87rem;
  border-left: 2px solid var(--line);
  padding-left: .7rem;
}

.cost { margin-top: 1.2rem; }