:root {
  --bg: #0f0b1a;
  --panel: #1a1430;
  --panel-2: #231b40;
  --line: #34295c;
  --text: #ece6ff;
  --muted: #a99ccc;
  --gold: #e6c068;
  --gold-2: #f3d98f;
  --purple: #7c5cff;
  --green: #3ecf8e;
  --red: #ff6b7a;
  --radius: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: radial-gradient(1200px 600px at 10% -10%, #2a1d55 0%, var(--bg) 55%) fixed; color: var(--text); font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans Bengali", sans-serif; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small-text { font-size: 13px; }
.error { color: var(--red); min-height: 1.2em; }
h1, h2 { font-family: Georgia, "Times New Roman", serif; font-weight: 600; letter-spacing: .3px; }
h2 { font-size: 18px; margin: 0 0 12px; color: var(--gold-2); }

button { background: linear-gradient(135deg, var(--gold), #c99a3a); color: #1b1300; border: 0; border-radius: 10px; padding: 10px 16px; font-weight: 600; cursor: pointer; }
button:hover { filter: brightness(1.07); }
button:disabled { opacity: .6; cursor: wait; }
button.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
button.danger { background: transparent; color: var(--red); border: 1px solid #5a2a3a; }
button.small { padding: 6px 12px; font-size: 13px; }
input, select, textarea { width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font: inherit; margin-top: 6px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--purple); border-color: transparent; }

.card { background: linear-gradient(180deg, var(--panel), #150f28); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: 0 10px 30px #0006; }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { width: min(380px, 100%); text-align: center; display: grid; gap: 12px; }
.login-card h1 { margin: 0; font-size: 34px; color: var(--gold-2); }
.crest { font-size: 52px; filter: drop-shadow(0 4px 14px #e6c06866); }

/* Layout */
.topbar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 16px; padding: 12px 20px; background: #0f0b1acc; backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { font-family: Georgia, serif; font-size: 20px; color: var(--gold-2); white-space: nowrap; }
nav { display: flex; gap: 4px; flex: 1; overflow-x: auto; }
.tab { background: transparent; color: var(--muted); padding: 8px 12px; white-space: nowrap; }
.tab.active { color: var(--text); background: var(--panel-2); }
.page { max-width: 1100px; margin: 24px auto; padding: 0 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.split { display: grid; grid-template-columns: 320px 1fr; gap: 16px; }
@media (max-width: 800px) { .split { grid-template-columns: 1fr; } .brand { display: none; } }

/* Status */
.status { display: flex; align-items: center; gap: 10px; font-weight: 600; margin-bottom: 10px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); box-shadow: 0 0 0 4px #ffffff10; }
.dot.on { background: var(--green); box-shadow: 0 0 0 4px #3ecf8e22; }
.dot.warn { background: var(--gold); box-shadow: 0 0 0 4px #e6c06822; }
.dot.off { background: var(--red); box-shadow: 0 0 0 4px #ff6b7a22; }
.qr { text-align: center; }
.qr img { width: 260px; max-width: 100%; background: #fff; border-radius: 12px; padding: 10px; }
.big { font-size: 30px; font-weight: 700; }
.bar { height: 8px; background: var(--bg); border-radius: 99px; overflow: hidden; margin: 10px 0; }
.bar div { height: 100%; width: 0; background: linear-gradient(90deg, var(--purple), var(--gold)); transition: width .4s; }
.usage { width: 100%; font-size: 13px; color: var(--muted); border-collapse: collapse; }
.usage td { padding: 3px 0; }
.usage td:last-child { text-align: right; }

/* Chat */
.chat-card { display: flex; flex-direction: column; height: calc(100vh - 120px); }
.chat-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.chat-log { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; padding: 8px 2px; min-height: 300px; max-height: calc(100vh - 220px); }
.msg { max-width: 78%; padding: 10px 14px; border-radius: 14px; white-space: pre-wrap; word-wrap: break-word; }
.msg.user { align-self: flex-end; background: #2d2457; border-bottom-right-radius: 4px; }
.msg.assistant { align-self: flex-start; background: #1f1838; border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.msg .meta { display: block; font-size: 11px; color: var(--muted); margin-top: 4px; }
.msg.typing { color: var(--muted); font-style: italic; }
.chat-form { display: flex; gap: 8px; margin-top: 10px; }
.chat-form input { margin: 0; }

.list-card { max-height: calc(100vh - 120px); overflow-y: auto; }
.chat-item { padding: 10px; border-radius: 10px; cursor: pointer; border: 1px solid transparent; }
.chat-item:hover { background: var(--panel-2); }
.chat-item.active { border-color: var(--purple); background: var(--panel-2); }
.chat-item .name { font-weight: 600; }
.chat-item .sub { font-size: 12px; color: var(--muted); }

/* Settings */
.settings { display: grid; gap: 16px; max-width: 760px; margin: 0 auto; }
.settings label { display: block; }
fieldset { border: 1px solid var(--line); border-radius: 12px; padding: 14px; display: grid; gap: 12px; }
legend { color: var(--gold-2); padding: 0 6px; }
.switch, .radio { display: flex !important; align-items: flex-start; gap: 10px; cursor: pointer; }
.switch input, .radio input { width: auto; margin: 4px 0 0; accent-color: var(--gold); }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.actions { display: flex; align-items: center; gap: 12px; }

/* Rule Book */
.rules-list { display: flex; flex-direction: column; gap: 12px; margin-top: 12px; }
.rule-card { background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; display: flex; flex-direction: column; gap: 8px; transition: border-color .2s; }
.rule-card.disabled { opacity: .55; }
.rule-card-header { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.rule-badges { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 8px; border-radius: 6px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.badge.instant { background: #3ecf8e22; color: var(--green); border: 1px solid #3ecf8e44; }
.badge.guideline { background: #7c5cff22; color: var(--gold-2); border: 1px solid #7c5cff44; }
.rule-controls { display: flex; align-items: center; gap: 12px; }
.rule-triggers-preview { font-size: 13px; color: var(--gold-2); font-weight: 500; word-break: break-word; }
.rule-response-preview { font-size: 14px; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; white-space: pre-wrap; word-break: break-word; }