:root{
  --hd-fg:#ffffff;
  --hd-accent:#FF4D4D;
  --hd-accent-strong:#e04343;
  --hd-border:rgba(255,255,255,.18);
  --hd-grad:linear-gradient(135deg,#5b2acc 0%,#2a7bff 100%);
  --muted:#6b7280;
  --ok:#15803d;
  --warn:#b45309;
  --err:#b91c1c;
}

/* Layout général */
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  font-family:Segoe UI,Roboto,Inter,Arial,Helvetica,sans-serif;
  color:#111;
  line-height:1.55;
  background:#fff;
}
main, .page-main{flex:1}

.container{width:1200px;max-width:96vw;margin:24px auto}
.row{display:flex;gap:10px;flex-wrap:wrap}
.row>*{flex:1}

a{color:#0a58ca;text-decoration:none}
a:hover{text-decoration:underline}

/* Header (barre haute) */
.site-header .bar{
  background:var(--hd-grad);
  color:#fff;
  border-bottom:1px solid var(--hd-border);
  padding:10px 16px;
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  justify-content:space-between;
}
.site-header .nav{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.site-header .nav a{
  color:#f1f5f9;
  padding:8px 10px;
  border-radius:8px;
}
.site-header .nav a[aria-current="page"],
.site-header .nav a:hover{
  background:rgba(255,255,255,.12);
  text-decoration:none;
}

/* Cards / tables / boutons */
.card{
  border:1px solid #e5e7eb;
  border-radius:12px;
  background:#fff;
  overflow:hidden;
}
.card header,
.card h3,
.card h4{
  margin:0;
  padding:12px 14px;
  background:#f3f4f6;
  border-bottom:1px solid #e5e7eb;
}
.card .content{padding:14px}

.table{width:100%;border-collapse:collapse;margin:8px 0}
.table th,.table td{
  border:1px solid #e5e7eb;
  padding:8px 10px;
  text-align:left;
}
.table th{background:#f9fafb}

.badge{
  display:inline-block;
  padding:2px 8px;
  border-radius:999px;
  font-size:.8rem;
}
.badge.ok{background:#e6f4ea;color:var(--ok)}
.badge.warn{background:#fff4e5;color:var(--warn)}
.badge.err{background:#fee2e2;color:var(--err)}

.btn{
  display:inline-block;
  padding:10px 14px;
  border-radius:8px;
  font-weight:700;
  border:1px solid #d1d5db;
  background:#fff;
  color:#111;
  cursor:pointer;
}
.btn.primary{
  background:var(--hd-accent);
  color:#fff;
  border-color:var(--hd-accent);
}
.btn.primary:hover{
  background:var(--hd-accent-strong);
  border-color:var(--hd-accent-strong);
}
.btn.danger{
  background:#b91c1c;
  color:#fff;
  border-color:#b91c1c;
}

input,select,textarea{
  border:1px solid #d1d5db;
  border-radius:8px;
  padding:10px;
  font:inherit;
}

/* Footer : collé en bas mais non sticky */
.site-footer{
  margin-top:auto;
}
.site-footer a{
  color:#fff;
  text-decoration:underline;
  text-underline-offset:2px;
}
.site-footer a:hover{
  opacity:.9;
  text-decoration:none;
}
.chats-section {
  margin-top: 2rem;
  padding: 1.5rem;
  border-radius: 12px;
  background: linear-gradient(135deg, #fce4ff, #f3e6ff);
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.chats-section h2 {
  margin-bottom: 0.75rem;
}

.section-intro {
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

.chat-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chat-item {
  background: #ffffff;
  border-radius: 10px;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(160, 120, 200, 0.2);
}

.chat-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.chat-date {
  font-weight: 600;
  color: #8241b8;
}

.chat-topic {
  font-style: italic;
  color: #555;
}

.chat-summary {
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.chat-details summary {
  cursor: pointer;
  font-size: 0.9rem;
  color: #8241b8;
  font-weight: 600;
}

.chat-content {
  margin-top: 0.5rem;
  max-height: 250px;
  overflow: auto;
  font-size: 0.85rem;
  background: #f8f4ff;
  padding: 0.75rem;
  border-radius: 8px;
  white-space: pre-wrap;
}