:root{--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-display: "Outfit", sans-serif;--bg-deep: #080a10;--bg-glass: rgba(16, 20, 32, .7);--bg-glass-active: rgba(28, 34, 54, .85);--bg-glass-panel: rgba(12, 16, 26, .85);--border-glass: rgba(255, 255, 255, .07);--border-glass-bright: rgba(255, 255, 255, .15);--accent-purple: #8b5cf6;--accent-purple-glow: rgba(139, 92, 246, .35);--accent-cyan: #06b6d4;--accent-cyan-glow: rgba(6, 182, 212, .35);--accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);--text-primary: #f3f4f6;--text-secondary: #9ca3af;--text-muted: #6b7280;--status-unread: #3b82f6;--status-unread-glow: rgba(59, 130, 246, .5);--status-sent: #10b981;--status-received: #8b5cf6;--status-error: #ef4444;--shadow-premium: 0 8px 32px 0 rgba(0, 0, 0, .37);--sidebar-width: 260px;--threadlist-width: 360px;--transition-smooth: all .25s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-deep);color:var(--text-primary);height:100vh;overflow:hidden;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#ffffff40}.app-container{display:flex;height:100vh;width:100vw;background:radial-gradient(circle at 10% 20%,#1a14324d,#05050a00 60%),radial-gradient(circle at 90% 80%,#063c5026,#05050a00 50%);position:relative}.panel{background:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-right:1px solid var(--border-glass);height:100%;display:flex;flex-direction:column}.sidebar{width:var(--sidebar-width);flex-shrink:0}.sidebar-header{padding:24px 20px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--border-glass)}.sidebar-logo{font-family:var(--font-display);font-weight:800;font-size:20px;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.5px}.sidebar-content{flex:1;overflow-y:auto;padding:16px 12px;display:flex;flex-direction:column;gap:20px}.sidebar-section-title{font-family:var(--font-display);font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:1.5px;margin-left:8px;margin-bottom:8px}.inbox-list{display:flex;flex-direction:column;gap:4px}.inbox-item{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:8px;cursor:pointer;transition:var(--transition-smooth);color:var(--text-secondary)}.inbox-item:hover{background:#ffffff0a;color:var(--text-primary)}.inbox-item.active{background:var(--bg-glass-active);border:1px solid var(--border-glass-bright);color:var(--text-primary);box-shadow:0 4px 12px #0000001a}.inbox-info{display:flex;align-items:center;gap:10px;min-width:0}.inbox-avatar{width:28px;height:28px;border-radius:6px;background:var(--accent-gradient);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;flex-shrink:0}.inbox-name-container{display:flex;flex-direction:column;min-width:0}.inbox-display-name{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.inbox-email-addr{font-size:10.5px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.delete-inbox-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:4px;opacity:0;transition:var(--transition-smooth)}.inbox-item:hover .delete-inbox-btn{opacity:1}.delete-inbox-btn:hover{color:var(--status-error);background:#ef444426}.btn-primary{background:var(--accent-gradient);border:none;color:#fff;padding:11px 16px;border-radius:8px;font-weight:600;font-size:13.5px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:var(--transition-smooth);box-shadow:0 4px 14px var(--accent-purple-glow)}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 18px #8b5cf680}.btn-secondary{background:#ffffff0d;border:1px solid var(--border-glass);color:var(--text-primary);padding:10px 16px;border-radius:8px;font-weight:500;font-size:13.5px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:var(--transition-smooth)}.btn-secondary:hover{background:#ffffff1a;border-color:var(--border-glass-bright)}.compose-btn-container{padding:0 8px}.thread-list-pane{width:var(--threadlist-width);flex-shrink:0}.thread-list-header{padding:20px 16px;border-bottom:1px solid var(--border-glass);display:flex;flex-direction:column;gap:12px}.search-container{position:relative;width:100%}.search-input{width:100%;background:#ffffff08;border:1px solid var(--border-glass);border-radius:8px;padding:9px 12px 9px 36px;color:var(--text-primary);font-size:13px;outline:none;transition:var(--transition-smooth)}.search-input:focus{border-color:var(--accent-purple);box-shadow:0 0 0 3px var(--accent-purple-glow);background:#ffffff0f}.search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-muted);pointer-events:none}.filter-tabs{display:flex;gap:4px}.filter-tab{background:transparent;border:none;color:var(--text-secondary);padding:6px 12px;font-size:12.5px;font-weight:500;cursor:pointer;border-radius:6px;transition:var(--transition-smooth)}.filter-tab:hover{color:var(--text-primary);background:#ffffff0a}.filter-tab.active{color:var(--text-primary);background:#ffffff12}.threads-scroll-area{flex:1;overflow-y:auto;padding:8px;display:flex;flex-direction:column;gap:6px}.thread-card{padding:14px 12px;border-radius:8px;background:transparent;border:1px solid transparent;cursor:pointer;transition:var(--transition-smooth);display:flex;flex-direction:column;gap:6px;position:relative}.thread-card:hover{background:#ffffff08;border-color:#ffffff0a}.thread-card.active{background:var(--bg-glass-active);border-color:var(--border-glass-bright);box-shadow:var(--shadow-premium)}.thread-card-row1{display:flex;justify-content:space-between;align-items:center;min-width:0;gap:8px}.thread-sender{font-size:13px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.thread-card.unread .thread-sender{color:#fff}.thread-date{font-size:11px;color:var(--text-muted);white-space:nowrap;flex-shrink:0}.thread-card-row2{display:flex;align-items:center;justify-content:space-between;gap:8px}.thread-subject{font-size:12.5px;font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}.thread-card.unread .thread-subject{font-weight:600}.thread-unread-dot{width:7px;height:7px;border-radius:50%;background-color:var(--status-unread);box-shadow:0 0 8px var(--status-unread-glow);flex-shrink:0}.thread-preview{font-size:11.5px;color:var(--text-secondary);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.thread-card-row3{display:flex;gap:6px;flex-wrap:wrap;margin-top:2px}.thread-badge{font-size:9.5px;padding:2px 6px;border-radius:4px;font-weight:600;text-transform:capitalize;border:1px solid transparent}.thread-badge.badge-received{background:#8b5cf61f;color:#a78bfa;border-color:#8b5cf640}.thread-badge.badge-sent{background:#10b9811f;color:#34d399;border-color:#10b98140}.thread-badge.badge-unread{background:#3b82f61f;color:#60a5fa;border-color:#3b82f640}.detail-pane{flex:1;display:flex;flex-direction:column;height:100%}.detail-placeholder{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-muted);gap:16px}.detail-placeholder-icon{opacity:.15;animation:pulse-glow 3s infinite ease-in-out}.detail-placeholder p{font-family:var(--font-display);font-size:15px;font-weight:500;letter-spacing:.5px}.detail-header{padding:24px 28px;border-bottom:1px solid var(--border-glass);background:#0c101a4d;display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.detail-subject-container{display:flex;flex-direction:column;gap:8px;min-width:0}.detail-subject-title{font-family:var(--font-display);font-size:19px;font-weight:700;line-height:1.3}.detail-thread-tags{display:flex;gap:6px}.detail-header-actions{display:flex;gap:8px;flex-shrink:0}.messages-list{flex:1;overflow-y:auto;padding:24px 28px;display:flex;flex-direction:column;gap:20px}.message-card{background:var(--bg-glass-panel);border:1px solid var(--border-glass);border-radius:12px;overflow:hidden;box-shadow:0 4px 20px #00000026}.message-card-header{padding:16px 20px;background:#ffffff04;border-bottom:1px solid var(--border-glass);display:flex;justify-content:space-between;align-items:center;gap:16px}.message-sender-details{display:flex;align-items:center;gap:12px;min-width:0}.message-sender-avatar{width:36px;height:36px;border-radius:50%;background:var(--accent-gradient);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}.message-sender-info{display:flex;flex-direction:column;min-width:0}.message-from-name{font-size:13.5px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-to-name{font-size:11px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message-time-meta{display:flex;align-items:center;gap:12px;font-size:11.5px;color:var(--text-muted)}.message-card-body{padding:24px 20px;line-height:1.6;font-size:13.5px}.html-iframe-container{width:100%;border:none;min-height:250px;background:transparent}.plain-text-body{white-space:pre-wrap;word-break:break-word;color:#e5e7eb}.reply-composer-area{padding:16px 28px 24px;border-top:1px solid var(--border-glass);background:#0c101a66}.reply-input-wrapper{background:var(--bg-glass-panel);border:1px solid var(--border-glass);border-radius:12px;padding:14px 16px;display:flex;flex-direction:column;gap:12px;transition:var(--transition-smooth)}.reply-input-wrapper:focus-within{border-color:var(--accent-purple);box-shadow:0 0 0 3px var(--accent-purple-glow)}.reply-textarea{width:100%;min-height:90px;max-height:250px;background:transparent;border:none;outline:none;resize:vertical;color:var(--text-primary);font-family:var(--font-sans);font-size:13.5px;line-height:1.5}.reply-composer-footer{display:flex;justify-content:flex-end;align-items:center;gap:12px}.modal-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#040508bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:100;animation:fade-in .2s ease-out}.modal-content{background:#101420d9;border:1px solid var(--border-glass-bright);border-radius:16px;width:100%;max-width:580px;box-shadow:var(--shadow-premium);display:flex;flex-direction:column;animation:scale-up .25s cubic-bezier(.34,1.56,.64,1);overflow:hidden}.modal-header{padding:20px 24px;border-bottom:1px solid var(--border-glass);display:flex;justify-content:space-between;align-items:center}.modal-title{font-family:var(--font-display);font-weight:700;font-size:18px;color:#fff}.modal-close-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:6px;border-radius:6px;transition:var(--transition-smooth)}.modal-close-btn:hover{color:#fff;background:#ffffff0f}.modal-body{padding:24px;display:flex;flex-direction:column;gap:16px}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:11.5px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.form-input{width:100%;background:#ffffff08;border:1px solid var(--border-glass);border-radius:8px;padding:10px 14px;color:var(--text-primary);font-size:13.5px;outline:none;transition:var(--transition-smooth)}.form-input:focus{border-color:var(--accent-cyan);box-shadow:0 0 0 3px var(--accent-cyan-glow);background:#ffffff0f}.form-textarea{width:100%;min-height:180px;max-height:350px;resize:vertical;background:#ffffff08;border:1px solid var(--border-glass);border-radius:8px;padding:10px 14px;color:var(--text-primary);font-family:var(--font-sans);font-size:13.5px;line-height:1.5;outline:none;transition:var(--transition-smooth)}.form-textarea:focus{border-color:var(--accent-cyan);box-shadow:0 0 0 3px var(--accent-cyan-glow);background:#ffffff0f}.modal-footer{padding:18px 24px;border-top:1px solid var(--border-glass);display:flex;justify-content:flex-end;gap:12px}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;flex:1}.spinner{width:32px;height:32px;border:3px solid rgba(139,92,246,.15);border-radius:50%;border-top-color:var(--accent-purple);animation:spin 1s linear infinite}.spinner-cyan{width:20px;height:20px;border:2px solid rgba(6,182,212,.15);border-radius:50%;border-top-color:var(--accent-cyan);animation:spin 1s linear infinite}.loading-text{font-size:13px;color:var(--text-secondary);font-weight:500}.skeleton-card{padding:14px 12px;border-radius:8px;background:#ffffff04;border:1px solid rgba(255,255,255,.02);display:flex;flex-direction:column;gap:8px;animation:skeleton-pulse 1.5s infinite ease-in-out}.skeleton-text{height:12px;background:#ffffff0a;border-radius:4px}.skeleton-name{width:40%;height:14px}.skeleton-date{width:15%}.skeleton-sub{width:75%;height:13px}.skeleton-body{width:95%;height:11px}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse-glow{0%,to{transform:scale(1);filter:drop-shadow(0 0 0px transparent)}50%{transform:scale(1.05);filter:drop-shadow(0 0 15px var(--accent-purple-glow))}}@keyframes skeleton-pulse{0%,to{opacity:.6}50%{opacity:.95}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes scale-up{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.stats-container{display:flex;flex-direction:column;gap:8px}.stat-item{background:#ffffff05;border:1px solid var(--border-glass);padding:12px;border-radius:8px;display:flex;flex-direction:column;gap:4px}.stat-label{font-size:11px;font-weight:600;color:var(--text-secondary)}.stat-value{font-family:var(--font-display);font-size:20px;font-weight:700;color:#fff;display:flex;align-items:baseline;gap:6px}.stat-sub{font-size:10px;color:var(--text-muted);font-weight:400}@media (max-width: 768px){.sidebar-wrapper,.threadlist-wrapper,.detail-wrapper,.analytics-wrapper{width:100%!important;max-width:100%!important;height:100%!important;flex:1!important;display:flex}.mobile-inactive{display:none!important}.mobile-active{display:flex!important}.sidebar,.thread-list-pane,.detail-pane{width:100%!important}body{padding-bottom:env(safe-area-inset-bottom);padding-top:env(safe-area-inset-top)}.app-container{height:100vh}.detail-header{padding:16px!important;flex-direction:column!important;align-items:stretch!important;gap:12px!important}.detail-header-actions{justify-content:space-between!important}.detail-header-actions button{flex:1;font-size:11px!important;padding:8px 6px!important}.messages-list{padding:16px!important}.message-card-header{padding:12px 14px!important;flex-direction:column!important;align-items:flex-start!important;gap:8px!important}.message-time-meta{width:100%;justify-content:space-between}.reply-composer-area{padding:12px 16px 20px!important}.modal-content{width:96%!important;max-height:90vh!important;border-radius:12px!important}.modal-body{padding:16px!important}.modal-footer{padding:12px 16px!important}}@media (min-width: 769px){.mobile-back-btn{display:none!important}.sidebar-wrapper{width:var(--sidebar-width);flex-shrink:0}.threadlist-wrapper{width:var(--threadlist-width);flex-shrink:0}.detail-wrapper,.analytics-wrapper{flex:1}}.lock-screen-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:#040508d9;backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);animation:fadeIn .3s ease}.lock-screen-card{width:100%;max-width:400px;padding:40px;background:var(--bg-glass-panel);border:1px solid var(--border-glass-bright);border-radius:20px;box-shadow:var(--shadow-premium),0 0 40px #8b5cf61a;display:flex;flex-direction:column;align-items:center;text-align:center;animation:slideUp .4s cubic-bezier(.16,1,.3,1);margin:16px}.lock-screen-logo{width:60px;height:60px;border-radius:16px;background:var(--accent-gradient);display:flex;align-items:center;justify-content:center;color:#fff;margin-bottom:24px;box-shadow:0 8px 20px var(--accent-purple-glow)}.lock-screen-title{font-family:var(--font-display);font-size:24px;font-weight:700;color:#fff;margin-bottom:8px}.lock-screen-subtitle{font-size:13.5px;color:var(--text-secondary);margin-bottom:32px}.lock-screen-form{width:100%;display:flex;flex-direction:column;gap:16px}.lock-screen-input-wrapper{position:relative;width:100%}.lock-screen-input{width:100%;padding:14px 16px 14px 44px;background:#0006;border:1px solid var(--border-glass);border-radius:10px;color:#fff;font-size:15px;outline:none;transition:var(--transition-smooth);text-align:left}.lock-screen-input:focus{border-color:var(--accent-purple);box-shadow:0 0 12px var(--accent-purple-glow)}.lock-screen-input-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-muted)}.lock-screen-btn{width:100%;padding:14px;background:var(--accent-gradient);border:none;border-radius:10px;color:#fff;font-weight:600;font-size:15px;cursor:pointer;box-shadow:0 4px 12px var(--accent-purple-glow);transition:var(--transition-smooth);display:flex;align-items:center;justify-content:center;gap:8px}.lock-screen-btn:hover:not(:disabled){opacity:.9;transform:translateY(-1px)}.lock-screen-btn:disabled{opacity:.6;cursor:not-allowed}.lock-screen-error{margin-top:16px;font-size:12px;color:var(--status-error);display:flex;align-items:center;justify-content:center;gap:6px;background:#ef44441a;padding:10px;border-radius:8px;border:1px solid rgba(239,68,68,.2);width:100%}@keyframes slideUp{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}