:root{--accent:#2f6db5;--accent-bg:#eaf1fa;--text-h:#1b2230;--text:#56607a;--muted:#8b94a3;--border:#e3e7ee;--border-soft:#f3f4f8;--bg:#f4f5f7;--panel:#fff;--row-read:#fcfcfd;--danger:#c0392b;--sans:"IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--mono:"IBM Plex Mono", ui-monospace, Consolas, monospace;font-family:var(--sans);color:var(--text-h);background:var(--bg);-webkit-font-smoothing:antialiased;font-size:14px}*{box-sizing:border-box}body{font-family:var(--sans);margin:0}button{font:inherit;font-family:var(--sans);cursor:pointer;border:1px solid var(--border);background:var(--panel);color:var(--text-h);border-radius:8px;padding:8px 14px}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}button.primary:hover{filter:brightness(1.05)}button.ghost{color:var(--text);background:0 0;border-color:#0000}button.ghost:hover{background:var(--border-soft)}button:disabled{opacity:.5;cursor:default}input,select,textarea{font:inherit;font-family:var(--sans);border:1px solid var(--border);background:var(--panel);width:100%;color:var(--text-h);border-radius:8px;padding:9px 11px}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg);outline:none}.muted{color:var(--muted)}.small{font-size:12px}.pad{padding:28px}.error{color:var(--danger);margin:4px 0}.brand{color:var(--accent);letter-spacing:-.01em;font-weight:700}.boot{height:100vh;color:var(--muted);place-items:center;display:grid}.avatar{color:#fff;font-weight:600;font-family:var(--sans);border-radius:50%;flex:none;place-items:center;width:36px;height:36px;font-size:13px;display:grid}.avatar.lg{width:44px;height:44px;font-size:15px}.avatar.sm{width:30px;height:30px;font-size:12px}.dot{border-radius:50%;flex:none;width:9px;height:9px}.count{font-family:var(--mono);color:var(--muted);font-size:11px;font-weight:700}.tag{border-radius:6px;padding:2px 8px;font-size:11px;font-weight:600}.badge{background:var(--accent-bg);color:var(--accent);border-radius:999px;margin-left:4px;padding:2px 8px;font-size:11px}.badge.off{color:var(--muted);background:#f0f2f6}.login-wrap{background:#172033;place-items:center;min-height:100vh;padding:16px;display:grid}.login-card{background:var(--panel);border-radius:16px;flex-direction:column;gap:14px;width:100%;max-width:360px;padding:32px 28px;display:flex;box-shadow:0 20px 50px #00000040}.login-card h1{margin:0;font-size:26px}.login-logo{width:48px;height:48px;margin-bottom:4px}.login-card label{color:var(--text);flex-direction:column;gap:6px;font-size:12.5px;font-weight:500;display:flex}.app{background:var(--panel);grid-template-columns:248px 380px 1fr;height:100vh;display:grid}.sidebar{border-right:1px solid var(--border);background:#fbfbfc;flex-direction:column;min-height:0;display:flex}.sidebar-head{align-items:center;gap:8px;padding:16px 16px 8px;display:flex}.sidebar-head img{width:24px;height:24px}.sidebar-head .brand{font-size:17px}.side-user{align-items:center;gap:10px;padding:8px 16px 14px;display:flex}.side-user .who{min-width:0}.side-user .who .nm{color:var(--text-h);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.side-user .who .rl{color:var(--muted);font-size:11px}.side-scroll{flex:1;min-height:0;padding:4px 12px;overflow-y:auto}.compose-btn{width:calc(100% - 24px);margin:0 12px 8px}.nav-label{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:14px 10px 6px;font-size:10.5px;font-weight:700}.nav{width:100%;height:36px;color:var(--text);text-align:left;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;padding:0 10px;font-size:13.5px;font-weight:500;display:flex}.nav:hover{background:var(--border-soft)}.nav.active{background:var(--accent-bg);color:var(--text-h);font-weight:600}.nav .ic{text-align:center;width:18px;color:var(--muted)}.nav .lbl{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.nav.active .count{color:var(--accent)}.sidebar-foot{border-top:1px solid var(--border);gap:6px;padding:10px 12px;display:flex}.sidebar-foot .nav{height:34px}.list{border-right:1px solid var(--border);background:var(--panel);flex-direction:column;min-height:0;display:flex}.list-head{border-bottom:1px solid var(--border-soft);padding:16px 16px 12px}.list-title-row{align-items:baseline;gap:8px;margin-bottom:12px;display:flex}.list-title-row h2{margin:0;font-size:17px}.search-input{margin-bottom:10px}.chips{gap:8px;display:flex}.chip{border:1px solid var(--border);background:var(--panel);height:28px;color:var(--text);border-radius:7px;padding:0 11px;font-size:12px;font-weight:600}.chip.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent)}.list-scroll{flex:1;min-height:0;overflow-y:auto}.row{cursor:pointer;border-bottom:1px solid var(--border-soft);background:var(--row-read);border-left:3px solid #0000;align-items:flex-start;gap:11px;padding:11px 14px;display:flex}.row.unread{background:var(--panel)}.row.selected{background:var(--accent-bg);border-left-color:var(--accent)}.row:focus-visible{background:var(--accent-bg);outline:none}.row-main{flex:1;min-width:0}.row-top{justify-content:space-between;align-items:center;gap:8px;display:flex}.row-from{color:var(--text-h);text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:7px;display:flex;overflow:hidden}.row.unread .row-from{font-weight:700}.row-time{color:var(--muted);flex:none;font-size:11px}.row-subject{color:var(--text-h);text-overflow:ellipsis;white-space:nowrap;margin-top:2px;font-size:13px;overflow:hidden}.row.unread .row-subject{font-weight:600}.row-preview{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;margin-top:2px;font-size:12px;overflow:hidden}.row-foot{align-items:center;gap:8px;margin-top:6px;display:flex}.unread-dot{background:var(--accent);border-radius:50%;flex:none;width:8px;height:8px}.reader{background:var(--panel);min-height:0;overflow-y:auto}.detail{padding:24px 28px}.detail-subject{color:var(--text-h);margin:0 0 14px;font-size:20px}.detail-from{border-bottom:1px solid var(--border-soft);align-items:center;gap:12px;padding-bottom:16px;display:flex}.detail-from .who{flex:1;min-width:0}.detail-from .nm{color:var(--text-h);font-weight:600}.detail-from .ad{color:var(--muted);font-size:12px}.detail-actions{gap:8px;padding:14px 0;display:flex}.attachments{flex-wrap:wrap;gap:8px;padding:4px 0 14px;display:flex}.attachment{background:var(--bg);border:1px solid var(--border);color:var(--text-h);border-radius:8px;padding:7px 11px;font-size:13px;text-decoration:none}.detail-body{padding-top:6px}.text-body{white-space:pre-wrap;word-break:break-word;font:inherit;font-family:var(--sans);color:#2b3240;margin:0;line-height:1.55}.html-body{border:none;width:100%;min-height:420px}.modal-overlay{z-index:10;background:#0f162673;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.modal{background:var(--panel);border-radius:14px;flex-direction:column;gap:12px;width:100%;max-width:620px;max-height:90vh;padding:20px;display:flex;overflow-y:auto;box-shadow:0 24px 60px #0000004d}.modal-head{justify-content:space-between;align-items:center;display:flex}.modal-head h2{margin:0;font-size:18px}.icon-btn{background:0 0;border:none;font-size:16px}.modal label{color:var(--text);flex-direction:column;gap:6px;font-size:12.5px;font-weight:500;display:flex}.modal-foot{justify-content:flex-end;gap:8px;display:flex}.compose-overlay{z-index:50;background:#141c2c6b;justify-content:flex-end;align-items:flex-end;padding:0 28px 0 0;display:flex;position:fixed;inset:0}.compose-panel{background:#fff;border-radius:12px 12px 0 0;flex-direction:column;width:560px;max-width:100%;max-height:88vh;display:flex;box-shadow:0 -8px 40px #141c2c47}.compose-head{background:#172033;border-radius:12px 12px 0 0;flex:none;justify-content:space-between;align-items:center;height:46px;padding:0 16px;display:flex}.compose-head .t{color:#fff;font-size:14px;font-weight:600}.compose-head-actions{align-items:center;gap:2px;display:flex}.compose-head .x{color:#aeb9cc;background:0 0;border:none;padding:4px 6px;font-size:16px}.compose-head .x:hover{color:#fff}.compose-overlay.expanded{justify-content:center;align-items:center;padding:24px}.compose-overlay.expanded .compose-panel{border-radius:12px;width:960px;max-width:95vw;height:90vh;max-height:90vh}.compose-overlay.expanded .compose-head{border-radius:12px 12px 0 0}.compose-fields{flex:none;padding:6px 18px 0}.compose-field{border-bottom:1px solid #eef0f4;align-items:center;gap:10px;padding:9px 0;display:flex}.compose-field .k{color:#7c869a;flex:none;width:46px;font-size:12px;font-weight:600}.compose-field input,.compose-field select{height:30px;box-shadow:none;color:var(--text-h);background:0 0;border:none;border-radius:0;outline:none;flex:1;padding:0;font-size:13px}.compose-field input:focus{box-shadow:none}.compose-error{padding:0 18px}.compose-foot{border-top:1px solid #eef0f4;flex:none;align-items:center;gap:10px;padding:12px 18px;display:flex}.rte{flex-direction:column;flex:1;min-width:0;min-height:200px;margin:6px 18px 0;display:flex}.rte-toolbar{border-bottom:1px solid #eef0f4;flex-wrap:wrap;align-items:center;gap:2px;padding-bottom:8px;display:flex}.rte-btn{width:30px;height:30px;color:var(--text);background:0 0;border:none;border-radius:6px;place-items:center;padding:0;font-size:14px;display:grid}.rte-btn:hover{background:var(--border-soft)}.rte-sep{background:var(--border);width:1px;height:18px;margin:0 4px}.rte-body{color:#2a3346;outline:none;flex:1;min-height:150px;padding:12px 2px;font-size:14px;line-height:1.6;overflow-y:auto}.rte-body:empty:before{content:attr(data-placeholder);color:var(--muted)}.admin{background:var(--bg);min-height:100vh}.topbar{background:var(--panel);border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:12px 18px;display:flex}.topbar .spacer{flex:1}.admin-body{flex-direction:column;gap:20px;max-width:840px;margin:0 auto;padding:24px 16px;display:flex}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:20px}.card h2{margin:0 0 4px}.admin-list{margin:12px 0;padding:0;list-style:none}.admin-row{border-bottom:1px solid var(--border-soft);justify-content:space-between;align-items:center;padding:9px 0;display:flex}.inline-form{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.inline-form input{flex:1;min-width:160px}.inline-form button{white-space:nowrap}.danger-text{color:var(--danger)}.user-cards{flex-direction:column;gap:12px;margin:12px 0;display:flex}.user-card{border:1px solid var(--border);border-radius:10px;padding:12px 14px}.user-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.user-actions{gap:6px;display:flex}.addr-editor{color:var(--muted);flex-direction:column;gap:6px;margin-top:12px;font-size:13px;display:flex}.addr-row{gap:8px;display:flex}.addr-row input{flex:1}.addr-row button{white-space:nowrap}.user-form{border-top:1px solid var(--border);margin-top:16px;padding-top:16px}.user-form>input{margin-bottom:10px}.user-form h3{margin:0 0 10px}.user-form-grid{grid-template-columns:2fr 1.5fr 1fr;gap:8px;margin-bottom:10px;display:grid}.user-form>button{margin-top:12px}@media (width<=900px){.app{grid-template-columns:1fr;grid-auto-rows:min-content}.reader{display:none}.user-form-grid{grid-template-columns:1fr}}