:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #818cf8;--secondary: #0ea5e9;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--bg-dark: #0f172a;--bg-card: #1e293b;--bg-card-hover: #334155;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--border: #334155;--shadow: 0 10px 40px rgba(0, 0, 0, .3);--radius: 12px;--transition: all .3s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-dark);color:var(--text-primary);min-height:100vh;line-height:1.6}.header{text-align:center;padding:15px 20px 12px;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);margin-bottom:20px;position:relative;overflow:hidden}.header:before{content:"";position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}.header-content{position:relative;z-index:1}.header-logo{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:#fff;font-size:1.4rem;font-weight:700;margin-bottom:4px}.logo-icon{font-size:1.5rem}.header-tagline{font-size:.85rem;opacity:.9;margin-bottom:10px}.header-nav{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.user-info{display:flex;align-items:center;gap:8px;background:#ffffff26;padding:6px 12px;border-radius:20px}.user-badge{background:var(--success);color:#fff;padding:2px 8px;border-radius:10px;font-size:.75rem;font-weight:600}.user-name{font-weight:500}.logout-form{display:inline}.auth-benefit,.guest-notice{margin-top:8px;padding:6px 14px;border-radius:15px;display:inline-flex;align-items:center;gap:6px;font-size:.8rem}.auth-benefit{background:#10b98133;color:#6ee7b7}.guest-notice{background:#fbbf2433;color:#fcd34d}.guest-notice a{color:#fff;font-weight:600}.container{max-width:1200px;margin:0 auto;padding:0 20px 40px}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border:none;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:var(--transition);text-decoration:none;font-family:inherit}.btn-sm{padding:8px 16px;font-size:.85rem}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 5px 20px #6366f166}.btn-secondary{background:#ffffff26;color:#fff;border:1px solid rgba(255,255,255,.2)}.btn-secondary:hover{background:#ffffff40}.btn-success{background:linear-gradient(135deg,var(--success) 0%,#059669 100%);color:#fff}.btn-danger{background:linear-gradient(135deg,var(--danger) 0%,#dc2626 100%);color:#fff}.btn-full{width:100%;justify-content:center}.email-box{background:var(--bg-card);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);margin-bottom:30px;border:1px solid var(--border)}.domain-picker{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid var(--border)}.domain-picker label{color:var(--text-secondary);font-size:.9rem;font-weight:600}.domain-select{min-width:220px;padding:10px 14px;border:1px solid var(--border);border-radius:8px;background:var(--bg-dark);color:var(--text-primary);font-size:.95rem;cursor:pointer}.domain-select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #6366f133}.domain-hint{color:var(--text-muted);font-size:.85rem}.email-display{display:flex;align-items:center;gap:15px;flex-wrap:wrap}.email-address{flex:1;min-width:250px;background:var(--bg-dark);border:2px solid var(--primary);border-radius:8px;padding:15px 20px;font-size:1.2rem;font-weight:600;color:var(--primary-light);letter-spacing:.5px}.timer-section{display:flex;align-items:center;justify-content:space-between;margin-top:20px;padding-top:20px;border-top:1px solid var(--border);flex-wrap:wrap;gap:15px}.timer{display:flex;align-items:center;gap:10px;color:var(--text-secondary)}.timer-icon{width:20px;height:20px}.main-content{display:grid;grid-template-columns:400px 1fr;gap:25px}@media(max-width:900px){.main-content{grid-template-columns:1fr}}.email-list{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden}.email-list-header{padding:20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.email-list-header h2{font-size:1.1rem;font-weight:600}.header-left{display:flex;align-items:center;gap:12px}.header-left input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--primary)}.email-count{background:var(--primary);color:#fff;padding:4px 12px;border-radius:20px;font-size:.85rem;font-weight:600}.email-items{max-height:500px;overflow-y:auto}.email-item{padding:15px 20px;border-bottom:1px solid var(--border);cursor:pointer;transition:var(--transition);display:flex;align-items:flex-start;gap:15px}.email-item-checkbox{padding-top:2px}.email-item-checkbox input[type=checkbox]{width:16px;height:16px;cursor:pointer;accent-color:var(--primary)}.email-item-content{flex:1;min-width:0}.email-item:hover{background:var(--bg-card-hover)}.email-item.active{background:var(--bg-card-hover);border-left:3px solid var(--primary)}.email-item.unread{background:#6366f11a}.email-item.unread .email-from{font-weight:600}.email-from{font-size:.95rem;color:var(--text-primary);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.email-subject{font-size:.9rem;color:var(--text-secondary);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.email-meta{display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:var(--text-muted)}.email-attachment-badge{display:inline-flex;align-items:center;gap:4px;background:var(--bg-dark);padding:2px 8px;border-radius:4px}.empty-state{padding:60px 20px;text-align:center;color:var(--text-muted)}.empty-state svg{width:80px;height:80px;margin-bottom:20px;opacity:.5}.email-viewer{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);min-height:400px}.email-viewer-header{padding:20px;border-bottom:1px solid var(--border)}.email-viewer-subject{font-size:1.3rem;font-weight:600;margin-bottom:15px}.email-viewer-from{display:flex;align-items:center;gap:12px}.avatar{width:45px;height:45px;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:1.1rem}.email-viewer-from-info h4{font-size:1rem;font-weight:600}.email-viewer-from-info p{font-size:.85rem;color:var(--text-muted)}.email-viewer-body{padding:25px;line-height:1.8}.email-body-content{background:var(--bg-dark);border-radius:8px;padding:20px;min-height:200px}.email-body-content iframe{width:100%;min-height:300px;border:none;background:#fff;border-radius:8px}.attachments-section{padding:20px;border-top:1px solid var(--border)}.attachments-section h4{font-size:.9rem;color:var(--text-secondary);margin-bottom:10px}.attachment-list{display:flex;flex-wrap:wrap;gap:10px}.attachment-item{display:flex;align-items:center;gap:8px;background:var(--bg-dark);padding:10px 15px;border-radius:8px;border:1px solid var(--border);cursor:pointer;transition:var(--transition)}.attachment-item:hover{border-color:var(--primary)}.toast-container{position:fixed;top:20px;right:20px;z-index:1000;display:flex;flex-direction:column;gap:10px}.toast{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:15px 20px;box-shadow:var(--shadow);display:flex;align-items:center;gap:12px;animation:slideIn .3s ease;min-width:300px}.toast.success{border-left:4px solid var(--success)}.toast.error{border-left:4px solid var(--danger)}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.realtime-indicator{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--success)}.pulse{width:8px;height:8px;background:var(--success);border-radius:50%;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.2)}}.hidden{display:none!important}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-dark)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@keyframes newEmail{0%{background:#6366f14d}to{background:transparent}}.email-item.new{animation:newEmail 2s ease-out}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}