:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e2229;
  --border: #2a2e37;
  --text: #e8e9ec;
  --muted: #9aa0ab;
  --accent: #d97757;
  --accent-hover: #c96545;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.hidden { display: none !important; }

.screen { min-height: 100vh; }

/* ---- Login ---- */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 320px;
  text-align: center;
}
.login-box h1 { margin: 0 0 4px; font-size: 22px; }
.subtitle { color: var(--muted); margin: 0 0 24px; font-size: 14px; }
.login-box input {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
}
.login-box button {
  width: 100%;
  padding: 10px;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 14px;
  cursor: pointer;
}
.login-box button:hover { background: var(--accent-hover); }
.error { color: #e05252; font-size: 13px; margin-top: 8px; min-height: 16px; }

/* ---- App layout ---- */
#app-screen { display: flex; }
.sidebar {
  width: 220px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px 12px;
  height: 100vh;
  position: sticky;
  top: 0;
}
.brand { font-weight: 600; padding: 0 8px 20px; }
.nav-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  background: transparent;
  border: none;
  color: var(--muted);
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  margin-bottom: 4px;
}
.nav-btn:hover { background: var(--panel-2); color: var(--text); }
.nav-btn.active { background: var(--panel-2); color: var(--text); }
.nav-link {
  display: block;
  padding: 10px 12px;
  color: var(--muted);
  text-decoration: none;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 4px;
}
.nav-link:hover { background: var(--panel-2); color: var(--text); }
.sidebar-footer {
  margin-top: auto;
  padding: 12px 8px 0;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}
.sidebar-footer button {
  display: block;
  margin-top: 8px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
}

.content { flex: 1; padding: 24px 32px; max-width: 900px; }
.tab h2 { margin-top: 0; }

/* ---- Chat ---- */
#tab-chat { display: flex; flex-direction: column; height: calc(100vh - 48px); max-width: 700px; }
.chat-messages { flex: 1; overflow-y: auto; padding-bottom: 16px; }
.msg { margin-bottom: 14px; padding: 10px 14px; border-radius: 10px; max-width: 80%; white-space: pre-wrap; line-height: 1.4; font-size: 14px; }
.msg.user { background: var(--accent); color: white; margin-left: auto; }
.msg.assistant { background: var(--panel-2); border: 1px solid var(--border); }
.msg .sources { display: block; margin-top: 6px; font-size: 11px; color: var(--muted); }
.chat-form { display: flex; gap: 8px; }
.chat-form input {
  flex: 1;
  padding: 12px 14px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
}
.chat-form button {
  padding: 12px 18px;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: white;
  cursor: pointer;
}
.chat-form button:hover { background: var(--accent-hover); }

/* ---- Forms generiques ---- */
.kb-form, .task-form, .user-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
  max-width: 500px;
}
.task-form, .user-form { flex-direction: row; flex-wrap: wrap; }
.kb-form input, .kb-form textarea,
.task-form input, .task-form select,
.user-form input, .user-form select {
  padding: 10px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
}
.task-form input { flex: 1; }
.kb-form button, .task-form button, .user-form button {
  padding: 10px 16px;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: white;
  cursor: pointer;
  align-self: flex-start;
}
.kb-form button:hover, .task-form button:hover, .user-form button:hover { background: var(--accent-hover); }

/* ---- Section header ---- */
.section-header { display: flex; justify-content: space-between; align-items: center; }
.section-header button, #back-to-tickets {
  padding: 8px 14px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
}
#back-to-tickets { margin-bottom: 14px; }

/* ---- Tickets ---- */
.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  margin-left: 8px;
}
.status-badge.open { background: #3a2a1a; color: #e0a052; }
.status-badge.in_progress { background: #1a2a3a; color: #52a0e0; }
.status-badge.closed { background: #1a3a22; color: #52e082; }
.ticket-thread { max-width: 700px; margin: 16px 0; }
.ticket-thread .tmsg {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 14px;
  white-space: pre-wrap;
  max-width: 85%;
}
.ticket-thread .tmsg.in { background: var(--panel-2); border: 1px solid var(--border); }
.ticket-thread .tmsg.out { background: var(--accent); color: white; margin-left: auto; }
.ticket-meta-row { display: flex; gap: 8px; align-items: center; margin-top: 6px; }
.ticket-meta-row select { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); border-radius: 6px; padding: 4px 8px; font-size: 12px; }

/* ---- Rapports ---- */
.template-box { max-width: 700px; margin-bottom: 20px; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; }
.template-box summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.template-box textarea { width: 100%; margin-top: 10px; padding: 10px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-family: monospace; font-size: 13px; }
.template-box button { margin-top: 8px; padding: 8px 14px; background: var(--accent); border: none; border-radius: 8px; color: white; cursor: pointer; }
.report-result { max-width: 700px; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin-bottom: 20px; }
.report-result pre { white-space: pre-wrap; font-family: inherit; font-size: 14px; margin: 0; }
select { padding: 10px 12px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 14px; }

/* ---- Listes ---- */
.item-list { list-style: none; padding: 0; margin: 0; max-width: 700px; }
.item-list li {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
}
.item-list .item-title { font-weight: 500; }
.item-list .item-meta { color: var(--muted); font-size: 12px; margin-top: 2px; }
.item-list select {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 12px;
}
.item-list .del-btn {
  background: none;
  border: none;
  color: #e05252;
  cursor: pointer;
  font-size: 13px;
  margin-left: 10px;
}