:root {
  --bg: #f7f4ec;
  --panel: #fffdf7;
  --ink: #1f2a2e;
  --muted: #5e6b71;
  --accent: #005f73;
  --accent-soft: #d9f4f6;
  --danger: #8f2d2d;
  --radius: 18px;
  --shadow: 0 18px 40px rgba(8, 23, 31, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 10% 10%, #ffecd9 0, rgba(255, 236, 217, 0.2) 35%, transparent 55%),
    radial-gradient(circle at 90% 30%, #c7ecee 0, rgba(199, 236, 238, 0.15) 30%, transparent 55%),
    var(--bg);
  color: var(--ink);
  font-family: "Manrope", "Segoe UI", sans-serif;
  line-height: 1.45;
}

.bg-shape {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(2px);
  z-index: 0;
}

.shape-a {
  width: 300px;
  height: 300px;
  left: -80px;
  top: 18vh;
  background: rgba(255, 196, 131, 0.24);
}

.shape-b {
  width: 220px;
  height: 220px;
  right: 3vw;
  bottom: 8vh;
  background: rgba(93, 178, 191, 0.2);
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(980px, 94vw);
  margin: 24px auto;
  display: grid;
  gap: 14px;
}

.top h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  letter-spacing: 0.02em;
}

.top p {
  margin: 4px 0 0;
  color: var(--muted);
}

.chat-id {
  margin-top: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.84rem;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  border: 1px solid rgba(31, 42, 46, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.controls {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
}

.controls label {
  font-weight: 700;
  color: var(--muted);
}

.controls select,
.controls button,
.actions button {
  border: 0;
  border-radius: 12px;
  padding: 10px 14px;
  font: inherit;
}

.controls select {
  background: #ecf4f7;
  color: var(--ink);
}

.controls button {
  background: #f0ebe0;
  color: #34414a;
  cursor: pointer;
}

.chat {
  min-height: 52vh;
  max-height: 56vh;
  overflow: auto;
  padding: 14px;
  display: grid;
  gap: 10px;
}

.message {
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(31, 42, 46, 0.1);
  background: #ffffff;
  animation: rise 0.22s ease;
}

.message.user {
  background: #e8f7f8;
  border-color: rgba(0, 95, 115, 0.25);
}

.message.assistant {
  background: #fff;
}

.meta {
  color: var(--muted);
  font-size: 0.86rem;
  margin-bottom: 6px;
}

.content {
  white-space: pre-wrap;
}

.content code,
.content pre {
  font-family: "JetBrains Mono", monospace;
}

.sources {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed rgba(31, 42, 46, 0.14);
  display: grid;
  gap: 6px;
}

.source-item {
  font-size: 0.9rem;
}

.source-item a {
  color: var(--accent);
  text-decoration: none;
}

.warn {
  margin-top: 10px;
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--danger);
  background: #fef2f1;
  border: 1px solid rgba(143, 45, 45, 0.2);
  font-size: 0.92rem;
}

.feedback-row {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.feedback-label {
  font-size: 0.88rem;
  color: var(--muted);
}

.feedback-btn {
  border: 1px solid rgba(31, 42, 46, 0.15);
  background: #f7fafb;
  color: var(--ink);
  border-radius: 10px;
  padding: 4px 10px;
  cursor: pointer;
}

.feedback-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.feedback-note {
  font-size: 0.84rem;
  color: var(--muted);
}

.feedback-error {
  color: var(--danger);
}

.composer {
  padding: 12px;
}

.composer textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid rgba(31, 42, 46, 0.2);
  border-radius: 14px;
  padding: 12px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

.actions {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.state {
  color: var(--muted);
  font-size: 0.9rem;
}

.actions button {
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.actions button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@keyframes rise {
  from {
    transform: translateY(6px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@media (max-width: 780px) {
  .chat {
    min-height: 48vh;
    max-height: 52vh;
  }

  .controls {
    flex-wrap: wrap;
  }

  .controls button {
    margin-left: 0;
  }
}

/* ── Markdown rendered content ─────────────────────────────────────────────── */

.content.markdown-rendered {
  white-space: normal;
  line-height: 1.65;
}

.content.markdown-rendered > :first-child { margin-top: 0; }
.content.markdown-rendered > :last-child  { margin-bottom: 0; }

.content.markdown-rendered h1,
.content.markdown-rendered h2,
.content.markdown-rendered h3 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--accent);
  margin: 0.9em 0 0.35em;
}

.content.markdown-rendered h1 { font-size: 1.18rem; }
.content.markdown-rendered h2 { font-size: 1.06rem; }
.content.markdown-rendered h3 { font-size: 0.97rem; }

.content.markdown-rendered p {
  margin: 0.4em 0;
}

.content.markdown-rendered ul,
.content.markdown-rendered ol {
  margin: 0.4em 0;
  padding-left: 1.55em;
}

.content.markdown-rendered li {
  margin: 0.18em 0;
}

.content.markdown-rendered blockquote {
  margin: 0.55em 0;
  padding: 0.4em 0.85em;
  border-left: 3px solid var(--accent-soft);
  background: #f2fafc;
  border-radius: 0 8px 8px 0;
  color: var(--muted);
}

.content.markdown-rendered hr {
  border: none;
  border-top: 1px solid rgba(31, 42, 46, 0.12);
  margin: 0.75em 0;
}

.content.markdown-rendered a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.content.markdown-rendered a:hover {
  opacity: 0.8;
}

.content.markdown-rendered table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
  margin: 0.6em 0;
}

.content.markdown-rendered th,
.content.markdown-rendered td {
  border: 1px solid rgba(31, 42, 46, 0.13);
  padding: 5px 10px;
  text-align: left;
}

.content.markdown-rendered th {
  background: #ecf4f7;
  font-weight: 600;
}

/* Inline code */
.content code.inline-code,
.content.markdown-rendered :not(pre) > code {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.87em;
  background: #ecf4f7;
  border: 1px solid rgba(0, 95, 115, 0.14);
  border-radius: 5px;
  padding: 1px 5px;
  color: var(--accent);
}

/* Code blocks */
.content.markdown-rendered pre {
  margin: 0.55em 0;
  border-radius: 10px;
  overflow: auto;
  border: 1px solid rgba(31, 42, 46, 0.1);
}

.content.markdown-rendered pre code.hljs {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.86em;
  padding: 14px 18px;
  border-radius: 10px;
  display: block;
  overflow-x: auto;
  background: #f5f7f9;
}

/* highlight.js overrides — stay in app's colour palette */
.hljs                { background: #f5f7f9; color: #1f2a2e; }
.hljs-comment        { color: #7a8b90; font-style: italic; }
.hljs-keyword,
.hljs-selector-tag   { color: #005f73; font-weight: 600; }
.hljs-string,
.hljs-attr           { color: #2a7a3b; }
.hljs-number         { color: #7c4d00; }
.hljs-title,
.hljs-section        { color: #005f73; font-weight: 700; }
.hljs-built_in,
.hljs-type           { color: #5a4fcf; }
.hljs-variable       { color: #1f2a2e; }
.hljs-literal        { color: #b85000; }