:root {
  --bg: #0f172a;
  --panel: #111827;
  --muted: #94a3b8;
  --text: #e2e8f0;
  --accent: #22d3ee;
  --accent-2: #38bdf8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top left, #1e293b, #0f172a 45%, #0b1120 100%);
  color: var(--text);
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

.app {
  width: min(900px, 100%);
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 20px;
  padding: 24px;
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 60px rgba(2, 6, 23, 0.5);
  display: grid;
  gap: 16px;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.header h1 {
  margin: 0 0 4px;
  font-size: 24px;
  letter-spacing: 0.4px;
}

.header p {
  margin: 0;
  color: var(--muted);
}

.status {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.2);
  color: var(--muted);
  font-size: 12px;
}

.chat {
  min-height: 360px;
  max-height: 360px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-right: 6px;
}

.message {
  padding: 12px 14px;
  border-radius: 14px;
  line-height: 1.4;
  background: rgba(148, 163, 184, 0.15);
  max-width: 80%;
}

.message.user {
  align-self: flex-end;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.3), rgba(56, 189, 248, 0.2));
}

.message.agent {
  align-self: flex-start;
  background: rgba(30, 41, 59, 0.6);
}

.message.pending {
  opacity: 0.7;
  font-style: italic;
}

.message pre {
  margin: 10px 0;
  padding: 10px 12px;
  background: rgba(15, 23, 42, 0.9);
  border-radius: 10px;
  overflow-x: auto;
}

.message code {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
}

.message a {
  color: var(--accent);
  text-decoration: underline;
}

.auth-button {
  margin-top: 8px;
  padding: 8px 12px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b1120;
  font-weight: 600;
  cursor: pointer;
}

.auth-link {
  display: inline-block;
  margin-top: 6px;
  color: var(--accent);
  text-decoration: underline;
}

.composer {
  display: flex;
  gap: 12px;
}

.composer input {
  flex: 1;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: #0b1120;
  color: var(--text);
}

.composer button {
  padding: 12px 16px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b1120;
  font-weight: 600;
  cursor: pointer;
}

.footer {
  color: var(--muted);
  font-size: 12px;
}

.auth-section button {
  padding: 8px 16px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b1120;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
}

.auth-section button:hover {
  opacity: 0.9;
}

#user-info {
  font-size: 13px;
  font-weight: 400;
  color: var(--accent);
}

code {
  color: var(--accent);
}

.login-prompt {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  max-height: 360px;
  background: rgba(30, 41, 59, 0.4);
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  text-align: center;
  width: 100%;
}

.login-prompt p {
  font-size: 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
  margin: 0;
  padding: 0;
  line-height: 1;
}

/* Markdown table styling */
.message table {
  border-collapse: collapse;
  width: 100%;
  margin: 10px 0;
  background: rgba(15, 23, 42, 0.5);
}

.message th,
.message td {
  border: 1px solid rgba(148, 163, 184, 0.3);
  padding: 8px 12px;
  text-align: left;
}

.message th {
  background: rgba(30, 41, 59, 0.8);
  font-weight: 600;
  color: var(--accent);
}

.message tr:hover {
  background: rgba(30, 41, 59, 0.4);
}

/* Markdown blockquote styling */
.message blockquote {
  border-left: 3px solid var(--accent);
  margin: 10px 0;
  padding-left: 15px;
  color: var(--muted);
  font-style: italic;
}

/* Markdown horizontal rule styling */
.message hr {
  border: none;
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  margin: 16px 0;
}

/* Markdown list styling */
.message ul,
.message ol {
  margin: 10px 0;
  padding-left: 24px;
}

.message li {
  margin: 4px 0;
}

/* Markdown heading styling */
.message h1,
.message h2,
.message h3,
.message h4,
.message h5,
.message h6 {
  margin: 16px 0 8px;
  color: var(--accent);
  font-weight: 600;
}

.message h1 { font-size: 1.8em; }
.message h2 { font-size: 1.5em; }
.message h3 { font-size: 1.3em; }
.message h4 { font-size: 1.1em; }
.message h5 { font-size: 1em; }
.message h6 { font-size: 0.9em; }

/* Markdown paragraph spacing */
.message p {
  margin: 8px 0;
}

/* Strikethrough styling */
.message del,
.message s {
  opacity: 0.7;
}