:root {
  --crimson: #942B43;
  --purple: #8A6FB0;
  --ink: #222;
  --muted: #666;
  --line: #d9d9d9;
  --bg: #f6f6f8;
  --brand: #942B43;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; color: var(--ink); background: var(--bg); line-height: 1.45; }
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 0.9rem; }

.header { display: flex; align-items: center; gap: 14px; padding: 10px 24px; background: #fff; }
.logo { height: 38px; }
.portal-name { font-size: 1.05rem; color: var(--muted); border-left: 1px solid var(--line); padding-left: 14px; }
.spacer { flex: 1; }
.who { font-size: 0.95rem; }
.topbar { height: 8px; background: var(--purple); }

.banner { padding: 8px 24px; font-size: 0.88rem; background: #eef0f6; color: #333; border-bottom: 1px solid var(--line); }
.banner.demo { background: #fff4d6; }

.layout { display: flex; min-height: calc(100vh - 140px); }
.sidebar { width: 260px; background: #fff; border-right: 1px solid var(--line); padding: 16px; }
.sidebar h2 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 0 0 10px; }
.sidebar ul { list-style: none; padding: 0; margin: 0; }
.sidebar li button { width: 100%; text-align: left; background: none; border: 1px solid transparent; border-radius: 6px;
  padding: 9px 10px; cursor: pointer; font-size: 0.95rem; display: flex; gap: 8px; align-items: center; }
.sidebar li button:hover { background: #f1eef6; }
.sidebar li button.active { background: #efe9f6; border-color: var(--purple); }
.sidebar .pname { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.chip { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 0.75rem; font-weight: bold; color: #fff; background: var(--brand); }
.chip.ro { background: #888; }

.main { flex: 1; padding: 22px 28px; max-width: 1000px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 16px; margin: 12px 0; }
.project-head { display: flex; align-items: center; gap: 12px; }
.project-head h2 { margin: 0; }
.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--line); margin: 14px 0 16px; }
.tab { background: none; border: none; padding: 9px 16px; cursor: pointer; font-size: 0.95rem; color: var(--muted); border-bottom: 3px solid transparent; margin-bottom: -2px; }
.tab.active { color: var(--ink); border-bottom-color: var(--brand); font-weight: bold; }

.messages { background: #fff; border: 1px solid var(--line); border-radius: 8px; min-height: 280px; max-height: 52vh; overflow-y: auto; padding: 12px; }
.msg { padding: 9px 12px; margin: 8px 0; border-radius: 8px; white-space: pre-wrap; word-wrap: break-word; }
.msg.user { background: #efe9f6; margin-left: 12%; }
.msg.assistant { background: #f4f4f4; margin-right: 6%; }
.msg.error { background: #fbeaea; color: #8a1c14; }
.composer { display: flex; gap: 10px; margin: 12px 0 6px; }
.composer textarea { flex: 1; }

label { display: block; font-weight: bold; font-size: 0.9rem; margin: 12px 0 5px; }
input[type=text], textarea, select { width: 100%; padding: 9px 10px; border: 1px solid #bbb; border-radius: 6px; font: inherit; }
.row { display: flex; align-items: center; gap: 14px; margin-top: 12px; }

.btn { background: var(--crimson); color: #fff; border: none; border-radius: 6px; padding: 10px 20px; font-size: 0.95rem; cursor: pointer; text-decoration: none; display: inline-block; }
.btn:hover { filter: brightness(1.08); }
.btn:disabled { opacity: 0.5; cursor: wait; }
.btn.small { padding: 6px 12px; font-size: 0.85rem; }
.btn.ghost { background: #fff; color: var(--crimson); border: 1px solid var(--crimson); }

table.docs { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); }
table.docs th { text-align: left; background: #efe9f6; padding: 9px 12px; font-size: 0.85rem; }
table.docs td { padding: 9px 12px; border-top: 1px solid var(--line); font-size: 0.92rem; }
table.docs a { color: var(--crimson); }

.login-body { background: #fff; }
.login-card { max-width: 420px; margin: 9vh auto; padding: 0 24px; text-align: center; }
.login-logo { width: 240px; }
.login-card h1 { margin: 18px 0 6px; }
.login-card form { text-align: left; margin-top: 16px; }
.login-card select { margin-bottom: 14px; }
.demo-note { background: #fff4d6; padding: 8px; border-radius: 6px; font-size: 0.88rem; }
.fine { color: var(--muted); font-size: 0.8rem; margin-top: 28px; }