*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--sidebar-w: 230px;--blue: #2563eb;--blue-dk: #1d4ed8;--navy: #0f172a;--navy-2: #1e293b;--navy-3: #334155;--slate: #64748b;--border: #e2e8f0;--bg: #f1f5f9;--white: #ffffff;--green: #16a34a;--red: #dc2626;--purple: #7c3aed;--amber: #d97706;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 16px rgba(0,0,0,.1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;font-size:14px;background:var(--bg);color:var(--navy);line-height:1.5;-webkit-font-smoothing:antialiased}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#1e3a8a,#2563eb 60%,#38bdf8)}.login-card{background:#fff;border-radius:16px;padding:52px 44px;text-align:center;width:380px;box-shadow:0 24px 64px #0000002e}.login-logo{margin-bottom:24px;display:flex;justify-content:center}.login-brand-logo{width:80px;height:80px;object-fit:contain}.login-card h1{font-size:24px;font-weight:700;letter-spacing:-.4px;margin-bottom:8px}.login-card p{color:var(--slate);margin-bottom:32px;font-size:14px;line-height:1.6}.btn-microsoft{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:11px 20px;background:#fff;border:1.5px solid var(--border);border-radius:var(--radius);font-size:14px;font-weight:600;color:var(--navy);text-decoration:none;cursor:pointer;transition:border-color .15s,box-shadow .15s}.btn-microsoft:hover{border-color:#94a3b8;box-shadow:var(--shadow)}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);min-height:100vh;background:var(--navy);display:flex;flex-direction:column;flex-shrink:0;position:fixed;top:0;left:0;z-index:20}.sidebar-brand{display:flex;align-items:center;gap:10px;padding:18px 20px;font-size:16px;font-weight:700;color:#fff;letter-spacing:-.3px;border-bottom:1px solid rgba(255,255,255,.07)}.brand-logo{width:36px;height:36px;object-fit:contain;filter:brightness(0) invert(1);flex-shrink:0}.sidebar-nav{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:2px}.nav-section-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:#ffffff4d;padding:0 8px 8px}.nav-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:6px;color:#fff9;font-weight:500;font-size:13.5px;text-decoration:none;transition:background .15s,color .15s}.nav-item:hover{background:#ffffff12;color:#fff}.nav-item.active{background:var(--blue);color:#fff}.sidebar-footer{padding:16px 12px;border-top:1px solid rgba(255,255,255,.07);display:flex;flex-direction:column;gap:10px}.sidebar-user{display:flex;align-items:center;gap:10px}.avatar{width:32px;height:32px;background:var(--blue);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;flex-shrink:0}.sidebar-user-name{font-size:13px;font-weight:600;color:#fff}.sidebar-user-email{font-size:11px;color:#fff6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:140px}.sidebar-logout{display:flex;align-items:center;gap:7px;background:none;border:1px solid rgba(255,255,255,.12);border-radius:6px;color:#ffffff80;font-size:12px;font-weight:500;padding:7px 10px;cursor:pointer;width:100%;transition:border-color .15s,color .15s}.sidebar-logout:hover{border-color:#ffffff4d;color:#fff}.sidebar-main{margin-left:var(--sidebar-w);flex:1;padding:32px;min-width:0}.page-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:24px}.page-title{font-size:22px;font-weight:700;letter-spacing:-.4px}.page-subtitle{font-size:13px;color:var(--slate);margin-top:2px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.stat-card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);border:1px solid var(--border);display:flex;flex-direction:column;gap:8px;position:relative;overflow:hidden}.stat-card:after{content:"";position:absolute;top:0;left:0;width:4px;height:100%;border-radius:8px 0 0 8px}.stat-blue:after{background:var(--blue)}.stat-green:after{background:var(--green)}.stat-purple:after{background:var(--purple)}.stat-red:after{background:var(--red)}.stat-icon{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center}.stat-blue .stat-icon{background:#dbeafe;color:var(--blue)}.stat-green .stat-icon{background:#dcfce7;color:var(--green)}.stat-purple .stat-icon{background:#ede9fe;color:var(--purple)}.stat-red .stat-icon{background:#fee2e2;color:var(--red)}.stat-value{font-size:28px;font-weight:700;letter-spacing:-.5px;line-height:1}.stat-label{font-size:12px;font-weight:500;color:var(--slate);text-transform:uppercase;letter-spacing:.06em}.card{background:#fff;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);overflow:hidden}.card-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.card-title{font-size:15px;font-weight:600}.card-count{font-size:12px;color:var(--slate);background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:2px 10px}.data-table{width:100%;border-collapse:collapse}.data-table th{text-align:left;padding:10px 16px;font-size:11px;font-weight:600;color:var(--slate);text-transform:uppercase;letter-spacing:.07em;background:#f8fafc;border-bottom:1px solid var(--border);white-space:nowrap}.data-table td{padding:13px 16px;border-bottom:1px solid #f1f5f9;color:#374151;vertical-align:middle}.data-table tr:last-child td{border-bottom:none}.data-table tbody tr:hover td{background:#fafbff}.td-recipient{font-weight:500;color:var(--navy);max-width:180px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.td-subject{max-width:200px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--slate)}.td-mono{font-family:SF Mono,Consolas,monospace;font-size:12px;color:var(--slate);white-space:nowrap}.td-center{text-align:center}.td-none{color:#cbd5e1;font-size:12px}.badge{display:inline-flex;align-items:center;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:600;white-space:nowrap}.badge-pending{background:#dbeafe;color:#1d4ed8}.badge-processing{background:#fef9c3;color:#92400e}.badge-sent{background:#dcfce7;color:#15803d}.badge-failed{background:#fee2e2;color:#b91c1c}.badge-cancelled{background:#f1f5f9;color:#94a3b8}.tag{display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:500;background:#f0f4ff;color:#3b5bdb;border:1px solid #c5d0fc}.table-empty{display:flex;flex-direction:column;align-items:center;gap:14px;padding:56px 24px;color:var(--slate);font-size:14px}.btn-primary{display:inline-flex;align-items:center;gap:6px;background:var(--blue);color:#fff;border:none;border-radius:var(--radius);padding:9px 16px;font-size:13px;font-weight:600;cursor:pointer;transition:background .15s,box-shadow .15s;white-space:nowrap}.btn-primary:hover{background:var(--blue-dk);box-shadow:0 2px 8px #2563eb59}.btn-primary:disabled{background:#93c5fd;cursor:not-allowed;box-shadow:none}.btn-secondary{display:inline-flex;align-items:center;gap:6px;background:#fff;color:var(--navy-3);border:1.5px solid var(--border);border-radius:var(--radius);padding:9px 16px;font-size:13px;font-weight:600;cursor:pointer;transition:border-color .15s,background .15s;white-space:nowrap}.btn-secondary:hover{border-color:#94a3b8;background:#f8fafc}.btn-cancel{background:none;border:1px solid #fca5a5;color:#dc2626;border-radius:5px;padding:4px 10px;font-size:11px;font-weight:500;cursor:pointer;transition:background .15s;white-space:nowrap}.btn-cancel:hover{background:#fef2f2}.compose-card{padding:28px}.compose-form{display:flex;flex-direction:column;gap:20px}.field{display:flex;flex-direction:column;gap:6px}.field label{display:flex;align-items:center;gap:8px;font-weight:600;font-size:13px;color:var(--navy)}.field-hint{font-size:11px;font-weight:400;color:var(--slate)}.field input,.field textarea,.field select{border:1.5px solid var(--border);border-radius:var(--radius);padding:9px 12px;font-size:14px;color:var(--navy);background:#fff;font-family:inherit;width:100%;transition:border-color .15s,box-shadow .15s}.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px #2563eb1f}.field textarea{resize:vertical;line-height:1.6}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.recurrence-hint{display:flex;align-items:center;gap:8px;background:#f0f4ff;border:1px solid #c5d0fc;border-radius:6px;padding:10px 14px;font-size:13px;color:#3b5bdb}.form-actions{display:flex;justify-content:flex-end;gap:10px;padding-top:4px}.error-banner{background:#fef2f2;border:1px solid #fca5a5;color:#b91c1c;border-radius:6px;padding:11px 14px;font-size:13px;margin-bottom:4px}.loading-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}.spinner{width:28px;height:28px;border:2.5px solid var(--border);border-top-color:var(--blue);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}