:root{--bg: #f4f6f8;--card: #ffffff;--ink: #111827;--mut: #6b7280;--line: #e4e8ec;--brand: #22c55e;--brand2: #4f8cff;--danger: #ef4444;--warn: #f59e0b;--brand-soft: rgba(34, 197, 94, .14);--brand2-soft: rgba(79, 140, 255, .14);--danger-soft: rgba(239, 68, 68, .12);--warn-soft: rgba(245, 158, 11, .14);--out-bg: #dcfbe7;--note-bg: #fdf6d8;--note-line: #e5c95c;--radius: 10px;--radius-sm: 7px;--shadow: 0 4px 18px rgba(15, 23, 42, .1);--shadow-sm: 0 1px 3px rgba(15, 23, 42, .08);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans Bengali", "Hind Siliguri", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji"}@media (prefers-color-scheme: dark){:root{--bg: #0b0f14;--card: #151c24;--ink: #e6edf3;--mut: #8b98a5;--line: #26313d;--brand-soft: rgba(34, 197, 94, .18);--brand2-soft: rgba(79, 140, 255, .2);--danger-soft: rgba(239, 68, 68, .18);--warn-soft: rgba(245, 158, 11, .18);--out-bg: #143424;--note-bg: #33301a;--note-line: #857a34;--shadow: 0 4px 18px rgba(0, 0, 0, .45);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4)}}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:14px;line-height:1.45;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}h1,h2,h3,h4,p{margin:0}h1{font-size:20px}h2{font-size:16px}h3{font-size:14px}a{color:var(--brand2);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;color:inherit;background:none;border:none;padding:0;cursor:pointer}img{max-width:100%}*{scrollbar-width:thin;scrollbar-color:var(--line) transparent}*::-webkit-scrollbar{width:8px;height:8px}*::-webkit-scrollbar-track{background:transparent}*::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}*::-webkit-scrollbar-thumb:hover{background:var(--mut)}.muted{color:var(--mut)}.small{font-size:12px}.flex{display:flex;align-items:center;gap:8px}.spread{display:flex;align-items:center;justify-content:space-between;gap:8px}.stack{display:flex;flex-direction:column;gap:8px}.grow{flex:1;min-width:0}.ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.page-center{height:100%;display:grid;place-items:center;padding:24px}.scroll-x{overflow-x:auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--card);color:var(--ink);font-weight:600;font-size:13px;line-height:1.2;white-space:nowrap;transition:background .12s,border-color .12s,opacity .12s;-webkit-user-select:none;user-select:none}.btn:hover{border-color:var(--mut)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn-primary:hover{filter:brightness(1.06);border-color:var(--brand)}.btn-ghost{background:transparent;border-color:transparent;color:var(--ink)}.btn-ghost:hover{background:var(--brand2-soft);border-color:transparent}.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn-danger:hover{filter:brightness(1.08);border-color:var(--danger)}.btn-sm{padding:4px 9px;font-size:12px;border-radius:6px}.btn-md{padding:8px 14px;font-size:13px}.btn-block{width:100%}input,select,textarea{font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:8px 10px;width:100%;outline:none;transition:border-color .12s,box-shadow 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8px;border-radius:999px;font-size:11px;font-weight:600;color:#fff}.win-open,.win-closing,.win-expired,.win-none{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:700;white-space:nowrap}.win-open{background:var(--brand-soft);color:#15803d}.win-closing{background:var(--warn-soft);color:#b45309}.win-expired{background:var(--danger-soft);color:var(--danger)}.win-none{background:transparent;color:var(--mut);border:1px dashed var(--line)}@media (prefers-color-scheme: dark){.win-open{color:#4ade80}.win-closing{color:#fbbf24}.win-expired{color:#f87171}}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow-sm)}.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px 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10px;border-radius:var(--radius-sm);font-size:13px;color:var(--ink)}.menu-item:hover{background:var(--brand2-soft)}.menu-item.danger{color:var(--danger)}.menu-sep{height:1px;background:var(--line);margin:4px 0}.inbox-grid{display:grid;grid-template-columns:340px minmax(0,1fr) 320px;flex:1;min-height:0;height:100%}.pane-list{border-right:1px solid var(--line);overflow-y:auto;min-height:0;background:var(--card);display:flex;flex-direction:column}.pane-thread{display:flex;flex-direction:column;min-width:0;min-height:0}.pane-side{border-left:1px solid var(--line);overflow-y:auto;min-height:0;background:var(--card);padding:12px}.pane-head{position:sticky;top:0;background:inherit;border-bottom:1px solid var(--line);padding:10px 12px;z-index:5}.filter-bar{display:flex;gap:6px;flex-wrap:wrap;padding:8px 12px;border-bottom:1px solid var(--line)}@media (max-width: 1200px){.inbox-grid{grid-template-columns:320px minmax(0,1fr) 300px}}@media (max-width: 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var(--line);border-bottom-left-radius:5px}.msg.out{align-self:flex-end;background:var(--out-bg);border:1px solid transparent;border-bottom-right-radius:5px}.msg.internal{align-self:center;max-width:88%;background:var(--note-bg);border:1px dashed var(--note-line);border-radius:var(--radius);font-size:13px}.msg.deleted{font-style:italic;color:var(--mut);background:transparent;border:1px dashed var(--line)}.msg.failed{border-color:var(--danger)}.msg .sender{font-size:11px;font-weight:700;color:var(--brand2);margin-bottom:2px}.msg .meta{display:flex;align-items:center;justify-content:flex-end;gap:5px;font-size:10.5px;color:var(--mut);margin-top:3px;-webkit-user-select:none;user-select:none}.msg .meta .tick{letter-spacing:-2px}.msg .meta .tick.read{color:var(--brand2)}.msg .meta .tick.failed{color:var(--danger);letter-spacing:0}.msg .edited-flag{font-style:italic}.msg .attachment{display:flex;align-items:center;gap:6px;padding:6px 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dark){.composer-lockbar.warn{color:#fbbf24}.composer-lockbar.expired{color:#f87171}}.composer-tools{display:flex;align-items:center;gap:4px;padding-top:6px}.composer.locked textarea{opacity:.5;pointer-events:none}.presence-bar{font-size:11.5px;color:var(--mut);padding:2px 14px;min-height:18px}.typing-dots:after{content:"…";animation:blink 1.2s infinite}@keyframes blink{50%{opacity:.3}}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0e128c;display:grid;place-items:center;padding:16px;z-index:50;animation:fade-in .12s ease-out}.modal{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-width:460px;max-height:calc(100dvh - 48px);display:flex;flex-direction:column;animation:pop-in .14s ease-out}.modal-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line)}.modal-body{padding:16px;overflow-y:auto}.modal-foot{display:flex;justify-content:flex-end;gap:8px;padding:12px 16px;border-top:1px solid var(--line)}@keyframes fade-in{0%{opacity:0}}@keyframes pop-in{0%{opacity:0;transform:translateY(8px) scale(.98)}}.toast-stack{position:fixed;right:14px;bottom:14px;display:flex;flex-direction:column;gap:8px;z-index:60;max-width:min(340px,calc(100vw - 28px))}.toast{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--brand2);border-radius:var(--radius-sm);box-shadow:var(--shadow);padding:10px 30px 10px 12px;cursor:pointer;position:relative;animation:toast-in .16s ease-out}.toast.error{border-left-color:var(--danger)}.toast.success{border-left-color:var(--brand)}.toast-title{font-weight:700;font-size:13px}.toast-body{font-size:12.5px;color:var(--mut);margin-top:2px}.toast-x{position:absolute;top:6px;right:6px;color:var(--mut);font-size:12px;padding:3px;border-radius:4px}.toast-x:hover{color:var(--ink);background:var(--brand2-soft)}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}}.empty-state,.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:40px 20px;text-align:center;color:var(--mut);height:100%;min-height:180px}.empty-state svg{width:44px;height:44px;opacity:.4}.empty-title{font-size:15px;font-weight:700;color:var(--ink)}.empty-hint{font-size:13px;max-width:340px}.spinner{width:22px;height:22px;border-radius:50%;border:2.5px solid var(--line);border-top-color:var(--brand);animation:spin .7s linear infinite;display:inline-block}.spinner.sm{width:14px;height:14px;border-width:2px}@keyframes spin{to{transform:rotate(360deg)}}.auth-page{min-height:100dvh;display:grid;place-items:center;padding:16px}.auth-card{width:100%;max-width:380px;padding:24px}.auth-brand{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:18px;font-size:20px;font-weight:800}.auth-brand svg{width:30px;height:30px}.auth-hint{margin-top:14px;padding:8px 10px;border-radius:var(--radius-sm);background:var(--brand-soft);font-size:12.5px;text-align:center}.auth-alt{text-align:center;margin-top:14px;font-size:13px;color:var(--mut)}.page{flex:1;min-height:0;overflow-y:auto;padding:16px}.page-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px;flex-wrap:wrap}@media (max-width: 900px){.app-shell{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr) auto}.app-main{grid-row:1}.rail{grid-row:2;flex-direction:row;align-items:center;border-right:none;border-top:1px solid var(--line);padding:4px 6px calc(4px + env(safe-area-inset-bottom));gap:0}.rail-brand{display:none}.rail-link{flex:1;padding:5px 0;gap:2px}.rail-spacer{display:none}.rail-foot{padding:0 4px}.menu{left:auto;right:0;bottom:calc(100% + 10px)}.toast-stack{bottom:calc(64px + env(safe-area-inset-bottom))}.msg{max-width:86%}.page{padding:12px}}