:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --text: #1c1f24;
  --muted: #6b7280;
  --border: #e3e6eb;
  --accent: #1f6feb;
  --accent-soft: #e7f0ff;
  --out: #1f6feb;
  --out-text: #ffffff;
  --in: #eef0f3;
  --danger: #c62828;
  --messenger: #0866ff;
  --instagram: #d62976;
  --whatsapp: #128c3e;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --panel: #171a20;
    --text: #e7e9ee;
    --muted: #9aa1ad;
    --border: #2a2f38;
    --accent: #4c8dff;
    --accent-soft: #1c2a44;
    --out: #2f6fe0;
    --in: #232832;
  }
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Bengali", sans-serif; background: var(--bg); color: var(--text); }
[hidden] { display: none !important; }
button { font: inherit; cursor: pointer; border: 0; border-radius: 8px; padding: 8px 14px; background: var(--accent); color: #fff; }
button.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
button.link { background: none; color: var(--accent); padding: 4px 0; }
input, select, textarea { font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--danger); }
.spacer { flex: 1; }

.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 28px; width: min(380px, 100%); display: grid; gap: 12px; }
.card h1 { margin: 0; }
.card label { display: grid; gap: 4px; font-weight: 500; }
.legal-links { text-align: center; margin: 0; }
.legal-links a { color: inherit; }

.app { height: 100vh; display: grid; grid-template-columns: 320px 1fr; grid-template-rows: 52px 1fr; }
.topbar { grid-column: 1 / -1; display: flex; align-items: center; gap: 12px; padding: 0 16px; background: var(--panel); border-bottom: 1px solid var(--border); }
.duty { display: flex; gap: 6px; align-items: center; font-weight: 500; }

.sidebar { background: var(--panel); border-right: 1px solid var(--border); display: flex; flex-direction: column; min-height: 0; }
.tabs { display: flex; gap: 4px; padding: 10px; }
.tabs button { flex: 1; background: transparent; color: var(--muted); padding: 6px; }
.tabs button.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.status-switch { padding: 0 10px 8px; }
.status-switch select { width: 100%; }
.conversation-list { list-style: none; margin: 0; padding: 0; overflow-y: auto; flex: 1; }
.conversation-list li { padding: 10px 14px; border-top: 1px solid var(--border); cursor: pointer; display: grid; gap: 2px; }
.conversation-list li.active { background: var(--accent-soft); }
.conversation-list .row { display: flex; gap: 8px; align-items: center; }
.conversation-list .name { font-weight: 600; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conversation-list .preview { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.badge { font-size: 11px; font-weight: 600; padding: 1px 7px; border-radius: 99px; color: #fff; }
.badge.messenger { background: var(--messenger); }
.badge.instagram { background: var(--instagram); }
.badge.whatsapp { background: var(--whatsapp); }
.tab-count { margin-left: 6px; }
.name-extra { font-weight: 400; }
.unread { background: var(--danger); color: #fff; border-radius: 99px; font-size: 11px; padding: 0 7px; font-weight: 600; }

.chat { min-height: 0; display: flex; }
.empty { margin: auto; color: var(--muted); }
.chat-inner { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.chat-header { display: flex; gap: 10px; align-items: center; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--border); }
.chat-title { font-weight: 600; font-size: 16px; }
.messages { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 6px; }
.bubble { max-width: min(70%, 520px); padding: 8px 12px; border-radius: 14px; white-space: pre-wrap; word-wrap: break-word; }
.bubble.in { align-self: flex-start; background: var(--in); border-bottom-left-radius: 4px; }
.bubble.out { align-self: flex-end; background: var(--out); color: var(--out-text); border-bottom-right-radius: 4px; }
.bubble.failed { background: var(--danger); }
.bubble .meta { font-size: 11px; opacity: .75; margin-top: 2px; }
.bubble a { color: inherit; }
.notice { margin: 0; padding: 8px 16px; background: var(--accent-soft); color: var(--text); font-size: 13px; }
.composer { display: flex; gap: 8px; padding: 12px 16px; background: var(--panel); border-top: 1px solid var(--border); }
.composer textarea { flex: 1; resize: none; }

dialog { border: 1px solid var(--border); border-radius: 14px; background: var(--panel); color: var(--text); width: min(860px, calc(100vw - 32px)); padding: 20px 24px; }
dialog::backdrop { background: rgb(0 0 0 / .4); }
dialog h2 { font-size: 16px; margin: 20px 0 8px; }
.dialog-close { float: right; }
.table { width: 100%; border-collapse: collapse; }
.table td { padding: 6px 8px; border-top: 1px solid var(--border); }
.inline-form { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.inline-form input { flex: 1; min-width: 140px; }

code { background: var(--in); padding: 0 4px; border-radius: 4px; }
.field { display: grid; gap: 4px; font-size: 13px; font-weight: 500; }
.order-strip { display: flex; gap: 6px; flex-wrap: wrap; padding: 8px 16px; background: var(--panel); border-bottom: 1px solid var(--border); font-size: 13px; }
.order-chip { border: 1px solid var(--border); border-radius: 99px; padding: 2px 10px; }
.status-confirmed { color: var(--accent); }
.status-shipped { color: #b26a00; }
.status-delivered { color: var(--whatsapp); }
.status-cancelled, .status-returned { color: var(--danger); }
.saved-picker { list-style: none; margin: 0; padding: 4px; background: var(--panel); border-top: 1px solid var(--border); max-height: 180px; overflow-y: auto; }
.saved-picker li { padding: 6px 10px; border-radius: 6px; cursor: pointer; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.saved-picker li.active { background: var(--accent-soft); }
.order-form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.order-form .wide { grid-column: 1 / -1; }
.order-form .check { display: flex; gap: 8px; align-items: center; }
.items-head, .item-row { display: grid; grid-template-columns: 1fr 70px 110px 32px; gap: 8px; align-items: center; }
.item-row { margin-top: 6px; }
.item-row button { padding: 6px; }
.totals { background: var(--bg); border-radius: 8px; padding: 10px 12px; display: grid; gap: 2px; }
.totals .row { display: flex; justify-content: space-between; }
.totals .cod { font-weight: 700; font-size: 16px; }
.wide-dialog { width: min(1100px, calc(100vw - 32px)); }
.table-scroll { overflow-x: auto; }
.table th { text-align: left; font-size: 12px; color: var(--muted); padding: 6px 8px; font-weight: 600; }
.table td.num { text-align: right; white-space: nowrap; }

button:disabled { opacity: .6; cursor: progress; }
.connect-buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.brand-facebook { background: var(--messenger); }
.brand-whatsapp { background: var(--whatsapp); }
.manual-connect { margin-top: 12px; }
.manual-connect summary { cursor: pointer; }
.connect-pages { display: grid; gap: 10px; margin: 12px 0; }
.connect-page { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; display: grid; gap: 6px; }
.connect-page label { display: flex; gap: 8px; align-items: center; }
.warn { color: #b26a00; font-weight: 600; }

@media (max-width: 760px) {
  .order-form { grid-template-columns: 1fr; }
  .app { grid-template-columns: 1fr; grid-template-rows: 52px auto 1fr; }
  .sidebar { max-height: 40vh; border-right: 0; border-bottom: 1px solid var(--border); }
  #me-name { display: none; }
  .topbar { gap: 8px; padding: 0 10px; }
  .topbar button { padding: 6px 10px; }
}

/* ---- Onboarding ---- */
.brand-link { color: inherit; text-decoration: none; }
.onboarding { min-height: 100vh; background: var(--bg); }
.onb-header { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: var(--panel); border-bottom: 1px solid var(--border); }
.onb-wrap { max-width: 760px; margin: 0 auto; padding: 24px 16px 48px; }
.onb-steps { list-style: none; display: flex; gap: 8px; padding: 0; margin: 0 0 20px; flex-wrap: wrap; }
.onb-steps li { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; flex: 1; min-width: 130px; padding-bottom: 8px; border-bottom: 3px solid var(--border); }
.onb-steps li span { display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--border); color: var(--text); font-size: 12px; font-weight: 700; }
.onb-steps li.current { color: var(--text); font-weight: 600; border-color: var(--accent); }
.onb-steps li.current span { background: var(--accent); color: #fff; }
.onb-steps li.complete { border-color: var(--whatsapp); }
.onb-steps li.complete span { background: var(--whatsapp); color: #fff; }
.onb-card { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 24px; display: grid; gap: 14px; }
.onb-card h1 { margin: 0; font-size: 22px; }
.onb-card > p { margin: 0; }
.onb-two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.onb-actions { display: flex; gap: 8px; align-items: center; margin-top: 4px; }
.onb-subhead { margin: 4px 0 0; font-size: 15px; }
.onb-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.onb-list li { padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; }
.channel-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.channel-card { border: 1px solid var(--border); border-radius: 12px; padding: 16px; display: grid; gap: 8px; align-content: start; }
.channel-card h3 { margin: 0; font-size: 16px; }
.channel-card p { margin: 0; }
.onb-checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.onb-checklist li { padding: 10px 12px; border-radius: 8px; background: var(--bg); }
.onb-checklist li.ok { color: var(--text); }
.onb-checklist li.todo { color: var(--muted); }
.onb-tips { border-left: 3px solid var(--accent); padding: 4px 12px; }
.onb-tips ul { margin: 6px 0 0; padding-left: 18px; display: grid; gap: 4px; }
@media (max-width: 640px) {
  .channel-cards, .onb-two { grid-template-columns: 1fr; }
  .onb-card { padding: 18px; }
}