/* Chat Interface Styling - Matching Landing Page Design */

:root {
  --brand-50: #eff6ff;
  --brand-100: #dbeafe;
  --brand-600: #2563eb;
  --brand-700: #1d4ed8;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
}

/* Typography */
body {
  font-family: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--slate-900);
}

/* Layout */
.h-screen.w-full.flex.bg-white {
  background-color: white;
}

/* Sidebar Styling */
aside.hidden.md\:flex {
  background-color: white;
  border-right: 1px solid var(--slate-200);
}

aside .text-lg.font-semibold {
  font-family: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--slate-900);
}

aside .text-xs.text-slate-500 {
  color: var(--slate-500);
}

#new-session {
  background-color: var(--brand-600);
  color: white;
  border-radius: 9999px;
  padding: 0.5rem 1rem;
  font-weight: 500;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
  transition: background-color 0.2s;
}

#new-session:hover {
  background-color: var(--brand-700);
}

/* Session List */
#session-list li {
  border-radius: 0.5rem;
  transition: all 0.2s;
}

#session-list li.active,
#session-list li:hover {
  background-color: var(--slate-100);
}

/* Empty State */
#empty-state {
  background: linear-gradient(to bottom, var(--brand-50), white);
}

#empty-state .text-2xl,
#empty-state .text-3xl {
  color: var(--slate-900);
  font-weight: 600;
}

#empty-state .text-slate-500 {
  color: var(--slate-600);
}

/* Textarea in Empty State */
#prompt-empty {
  background-color: white;
  border: 1px solid var(--slate-200);
  border-radius: 1rem;
  padding: 0.75rem 1.25rem;
  padding-right: 3.5rem;
  color: var(--slate-900);
  transition: all 0.2s;
}

#prompt-empty:focus {
  outline: none;
  border-color: var(--brand-600);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

#prompt-empty::placeholder {
  color: var(--slate-500);
}

/* Send Button in Empty State */
#composer-empty button[type="submit"] {
  background-color: var(--brand-600);
  border-radius: 9999px;
  transition: background-color 0.2s;
}

#composer-empty button[type="submit"]:hover {
  background-color: var(--brand-700);
}

/* Messages */
#messages {
  padding: 1rem;
}

/* User Message Bubbles */
#messages .justify-end > div {
  background-color: var(--brand-600);
  color: white;
  border-radius: 1rem;
  padding: 0.75rem 1rem;
  max-width: 80%;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
}

/* Assistant Message Bubbles */
#messages .justify-start > div {
  background-color: white;
  color: var(--slate-900);
  border: 1px solid var(--slate-200);
  border-radius: 1rem;
  padding: 0.75rem 1rem;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
}

/* Composer */
#composer {
  padding: 1rem;
}

/* Textarea in Composer */
#prompt {
  background-color: white;
  border: 1px solid var(--slate-200);
  border-radius: 1rem;
  padding: 0.75rem 1.25rem;
  padding-right: 3.5rem;
  color: var(--slate-900);
  transition: all 0.2s;
}

#prompt:focus {
  outline: none;
  border-color: var(--brand-600);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

#prompt::placeholder {
  color: var(--slate-500);
}

/* Send Button in Composer */
#composer button[type="submit"] {
  background-color: var(--brand-600);
  border-radius: 9999px;
  transition: background-color 0.2s;
}

#composer button[type="submit"]:hover {
  background-color: var(--brand-700);
}

/* Download PDF Button */
#download-pdf {
  border: 1px solid var(--slate-200);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  color: var(--slate-700);
  background-color: white;
  transition: all 0.2s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
}

#download-pdf:hover {
  background-color: var(--slate-50);
}

/* Tables in Messages */
.markdown-body table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
  border: 1px solid var(--slate-200);
  border-radius: 0.75rem;
  overflow: hidden;
}

.markdown-body thead {
  background-color: var(--slate-50);
}

.markdown-body th {
  padding: 0.5rem 0.75rem;
  text-align: left;
  font-weight: 600;
  color: var(--slate-700);
  border-bottom: 1px solid var(--slate-200);
}

.markdown-body td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--slate-200);
  color: var(--slate-700);
}

.markdown-body tr:last-child td {
  border-bottom: none;
}

/* Headings in Messages */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  color: var(--slate-900);
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

/* Paragraphs in Messages */
.markdown-body p {
  color: var(--slate-800);
  line-height: 1.5;
  margin: 0.75rem 0;
}

/* Links in Messages */
.markdown-body a {
  color: var(--brand-600);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.markdown-body a:hover {
  color: var(--brand-700);
}