:root{--primary:#3a56d4;--secondary:#4cc9f0;--accent:#f72585;--bg:#ffffff;--card-bg:#f8f9fa;--text:#212529;--text-light:#495057;--gradient:linear-gradient(135deg, var(--primary), var(--secondary));--cyan:#00CFFF}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--card-bg);color:var(--text);line-height:1.6}h1,h2,h3{font-family:"Segoe UI",Roboto,Helvetica,Arial,sans-serif;font-weight:700}a{text-decoration:none;color:inherit}.container{max-width:1100px;margin:auto;padding:0 2rem}.icon{display:inline-block;width:1em;height:1em;vertical-align:-.125em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.icon-spin{animation:iconSpin 1s linear infinite}@keyframes iconSpin{to{transform:rotate(360deg)}}header{padding:1.5rem 0;background:rgba(255,255,255,.98);backdrop-filter:blur(10px);position:sticky;top:0;z-index:1000;border-bottom:1px solid rgba(108,99,255,.1);box-shadow:0 2px 10px rgba(0,0,0,.05)}.navbar{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:.75rem;font-size:1.8rem;font-weight:700}.logo-icon{background:var(--gradient);width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.logo-icon img{width:100%;height:100%;object-fit:cover}.logout-btn{background:rgba(247,37,133,.1);color:var(--accent);border:1px solid var(--accent);padding:.5rem 1.2rem;border-radius:50px;font-weight:600;font-size:.85rem;cursor:pointer;transition:all .3s;display:none}.logout-btn:hover{background:var(--accent);color:#fff}.logout-btn.show{display:inline-flex;align-items:center;gap:.35rem}.login-screen{min-height:80vh;display:flex;align-items:center;justify-content:center;padding:2rem}.login-box{background:#fff;border-radius:20px;padding:3rem;max-width:420px;width:100%;box-shadow:0 10px 40px rgba(0,0,0,.08);text-align:center}.login-box .lock-icon{width:70px;height:70px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem}.login-box .lock-icon .icon{width:1.8rem;height:1.8rem;color:#fff}.login-box h2{font-size:1.5rem;margin-bottom:.5rem}.login-box p{color:var(--text-light);margin-bottom:1.5rem;font-size:.95rem}.login-input{width:100%;padding:.85rem 1rem;border:2px solid #e9ecef;border-radius:12px;font-size:.95rem;outline:0;font-family:inherit;margin-bottom:1rem;transition:border-color .3s}.login-input:focus{border-color:var(--cyan)}.login-btn{width:100%;padding:.9rem;background:var(--gradient);color:#fff;border:none;border-radius:12px;font-family:inherit;font-size:1rem;font-weight:700;cursor:pointer;transition:transform .3s,box-shadow .3s;box-shadow:0 4px 15px rgba(58,86,212,.3);display:inline-flex;align-items:center;justify-content:center;gap:.4rem}.login-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(58,86,212,.4)}.login-btn:disabled{opacity:.6;cursor:not-allowed}.login-error{color:var(--accent);font-size:.85rem;margin-top:.75rem;display:none}.login-error.show{display:block}.dashboard{display:none;padding:2rem 0 4rem}.dashboard.show{display:block}.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background:#fff;border-radius:16px;padding:1.5rem;box-shadow:0 3px 12px rgba(0,0,0,.04);border:1px solid rgba(0,0,0,.04)}.stat-card .stat-num{font-size:2rem;font-weight:700;font-family:inherit;background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}.stat-card .stat-label{color:var(--text-light);font-size:.85rem;text-transform:uppercase;letter-spacing:.5px}.section-title{font-size:1.3rem;margin-bottom:1.25rem;display:flex;align-items:center;gap:.5rem}.section-title .icon{color:var(--primary)}.msg-list{display:flex;flex-direction:column;gap:1rem}.msg-card{background:#fff;border-radius:16px;padding:1.5rem;box-shadow:0 3px 12px rgba(0,0,0,.04);border:1px solid rgba(0,0,0,.04);border-left:4px solid var(--primary);transition:box-shadow .3s;position:relative}.msg-card:hover{box-shadow:0 8px 25px rgba(0,0,0,.08)}.msg-card.unread{border-left-color:var(--accent)}.msg-card.unread::after{content:'NEW';position:absolute;top:1rem;right:1rem;background:var(--accent);color:#fff;font-size:.65rem;font-weight:700;padding:.2rem .6rem;border-radius:50px;letter-spacing:.5px}.msg-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem;flex-wrap:wrap;gap:.5rem}.msg-subject{font-weight:700;font-size:1.05rem}.msg-time{color:var(--text-light);font-size:.8rem}.msg-meta{display:flex;gap:1.5rem;margin-bottom:.75rem;font-size:.9rem;color:var(--text-light)}.msg-meta span{display:inline-flex;align-items:center;gap:.3rem}.msg-meta span .icon{color:var(--primary);width:.85em;height:.85em}.msg-body{background:var(--card-bg);border-radius:10px;padding:1rem;font-size:.95rem;line-height:1.7;color:var(--text-light);white-space:pre-wrap;margin-bottom:1rem}.msg-actions{display:flex;gap:.75rem}.msg-actions button{padding:.4rem 1rem;border-radius:8px;font-size:.8rem;font-weight:600;cursor:pointer;border:none;transition:all .3s;display:inline-flex;align-items:center;gap:.3rem}.btn-read{background:rgba(58,86,212,.1);color:var(--primary)}.btn-read:hover{background:var(--primary);color:#fff}.btn-delete{background:rgba(247,37,133,.1);color:var(--accent)}.btn-delete:hover{background:var(--accent);color:#fff}.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-light)}.empty-state .icon{width:3rem;height:3rem;margin-bottom:1rem;color:#dee2e6}.empty-state p{font-size:1.1rem}.refresh-btn{background:rgba(58,86,212,.1);color:var(--primary);border:1px solid var(--primary);padding:.5rem 1.2rem;border-radius:50px;font-weight:600;font-size:.85rem;cursor:pointer;transition:all .3s;display:inline-flex;align-items:center;gap:.35rem}.refresh-btn:hover{background:var(--primary);color:#fff}footer{background:#f8f9fa;padding:2rem 0;text-align:center;border-top:1px solid rgba(0,0,0,.05);color:var(--text-light);font-size:.9rem}@media (max-width:768px){.stats-row{grid-template-columns:1fr 1fr}.msg-meta{flex-direction:column;gap:.25rem}.login-box{padding:2rem}}