@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--bg-app:#f0f4f8;--bg-surface:#fff;--bg-elevated:#fff;--bg-subtle:#f7f9fc;--bg-active:#eef4ff;--bg-active-strong:#dbeafe;--border:#e2e8f0;--border-strong:#cbd5e1;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--text-on-accent:#fff;--accent:#3b82f6;--accent-dark:#1d4ed8;--accent-light:#eff6ff;--accent-glow:#3b82f633;--danger:#ef4444;--danger-light:#fef2f2;--success:#22c55e;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 16px #00000014, 0 2px 6px #0000000a;--shadow-lg:0 20px 40px #0000001f, 0 8px 16px #0000000f;--shadow-xl:0 32px 64px #0000002e;--font:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--sidebar-width:240px;--list-width:360px;--header-h:60px;--bottomnav-h:64px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{height:100%}body{font-family:var(--font);background:var(--bg-app);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;height:100%;overflow:hidden}#root{height:100%}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:99px}.login-page{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex;position:relative;overflow:hidden}.login-page:before{content:"";background:#ffffff0d;border-radius:50%;width:600px;height:600px;position:absolute;top:-200px;right:-200px}.login-page:after{content:"";background:#ffffff0d;border-radius:50%;width:400px;height:400px;position:absolute;bottom:-150px;left:-150px}.login-card{-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);border-radius:var(--radius-xl);width:100%;max-width:420px;box-shadow:var(--shadow-xl);z-index:1;background:#fffffff2;border:1px solid #fffc;padding:48px 40px;animation:.5s cubic-bezier(.16,1,.3,1) floatIn;position:relative}@keyframes floatIn{0%{opacity:0;transform:translateY(24px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.login-logo{background:linear-gradient(135deg, var(--accent), var(--accent-dark));border-radius:var(--radius-md);width:56px;height:56px;box-shadow:0 8px 24px var(--accent-glow);justify-content:center;align-items:center;margin:0 auto 24px;display:flex}.login-card h1{color:var(--text-primary);text-align:center;margin-bottom:6px;font-size:26px;font-weight:700}.login-card .subtitle{color:var(--text-secondary);text-align:center;margin-bottom:36px;font-size:14px}.input-group{margin-bottom:16px;position:relative}.input-group label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px;font-size:12px;font-weight:600;display:block}.input-group input{border:1.5px solid var(--border);border-radius:var(--radius-md);width:100%;font-size:15px;font-family:var(--font);color:var(--text-primary);background:var(--bg-surface);outline:none;padding:14px 16px;transition:all .2s}.input-group input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.btn-primary{background:linear-gradient(135deg, var(--accent), var(--accent-dark));width:100%;color:var(--text-on-accent);border-radius:var(--radius-md);font-size:15px;font-weight:600;font-family:var(--font);cursor:pointer;box-shadow:0 4px 14px var(--accent-glow);border:none;margin-top:8px;padding:15px;transition:all .2s}.btn-primary:hover{box-shadow:0 8px 20px var(--accent-glow);transform:translateY(-1px)}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.app-shell{background:var(--bg-app);width:100vw;height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--bg-surface);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;padding:20px 12px;display:flex;overflow:hidden}.sidebar-brand{color:var(--text-primary);align-items:center;gap:10px;padding:4px 8px 20px;font-size:20px;font-weight:700;display:flex}.sidebar-brand .brand-icon{background:linear-gradient(135deg, var(--accent), var(--accent-dark));border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.compose-btn{background:linear-gradient(135deg, var(--accent), var(--accent-dark));color:#fff;border-radius:var(--radius-md);font-size:14px;font-weight:600;font-family:var(--font);cursor:pointer;width:100%;box-shadow:0 4px 12px var(--accent-glow);border:none;justify-content:center;align-items:center;gap:8px;margin-bottom:16px;padding:12px 16px;transition:all .2s;display:flex}.compose-btn:hover{box-shadow:0 6px 16px var(--accent-glow);transform:translateY(-1px)}.nav-section-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.6px;margin-top:8px;margin-bottom:4px;padding:4px 8px;font-size:11px;font-weight:600}.nav-item{border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);-webkit-user-select:none;user-select:none;align-items:center;gap:10px;padding:10px 12px;font-size:14px;font-weight:500;transition:all .15s;display:flex;position:relative}.nav-item:hover{background:var(--bg-subtle);color:var(--text-primary)}.nav-item.active{background:var(--bg-active);color:var(--accent);font-weight:600}.nav-item.active .nav-icon{color:var(--accent)}.nav-badge{background:var(--accent);color:#fff;border-radius:var(--radius-full);text-align:center;min-width:20px;margin-left:auto;padding:2px 7px;font-size:11px;font-weight:700}.nav-badge.muted{background:var(--bg-subtle);color:var(--text-muted)}.sidebar-footer{border-top:1px solid var(--border);margin-top:auto;padding-top:12px}.logout-btn{width:100%;color:var(--text-secondary);font-size:14px;font-weight:500;font-family:var(--font);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;align-items:center;gap:10px;padding:10px 12px;transition:all .15s;display:flex}.logout-btn:hover{background:var(--danger-light);color:var(--danger)}.main-content{flex-direction:column;flex:1;display:flex;overflow:hidden}.topbar{height:var(--header-h);background:var(--bg-surface);border-bottom:1px solid var(--border);z-index:20;flex-shrink:0;align-items:center;gap:12px;padding:0 16px;display:flex}.topbar-brand{color:var(--text-primary);flex:1;align-items:center;gap:8px;font-size:18px;font-weight:700;display:flex}.topbar-actions{align-items:center;gap:4px;display:flex}.icon-btn{width:38px;height:38px;color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;transition:all .15s;display:flex}.icon-btn:hover{background:var(--bg-subtle);color:var(--text-primary)}.topbar-folder-name{color:var(--text-primary);flex:1;font-size:16px;font-weight:600}.split-view{flex:1;display:flex;overflow:hidden}.email-list-pane{width:var(--list-width);background:var(--bg-surface);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;display:flex;overflow:hidden}.list-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:14px 16px 10px;display:flex}.list-header-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-size:13px;font-weight:600}.email-list{flex:1;overflow-y:auto}.empty-state{color:var(--text-muted);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;padding:48px 24px;display:flex}.empty-state-icon{background:var(--bg-subtle);border-radius:var(--radius-lg);justify-content:center;align-items:center;width:56px;height:56px;display:flex}.empty-state p{font-size:14px;font-weight:500}.empty-state span{text-align:center;font-size:13px}.email-item{border-bottom:1px solid var(--border);cursor:pointer;flex-direction:column;gap:5px;padding:14px 16px;transition:background .15s;display:flex;position:relative}.email-item:hover{background:var(--bg-subtle)}.email-item.selected{background:var(--bg-active);border-left:3px solid var(--accent);padding-left:13px}.item-row1{justify-content:space-between;align-items:center;gap:8px;display:flex}.item-sender{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;flex:1;align-items:center;gap:6px;font-size:14px;font-weight:600;display:flex;overflow:hidden}.item-sender-avatar{background:linear-gradient(135deg, var(--accent), var(--accent-dark));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:13px;font-weight:700;display:flex}.item-date{color:var(--text-muted);white-space:nowrap;flex-shrink:0;font-size:11px;font-weight:500}.item-subject{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500;overflow:hidden}.item-preview{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:12.5px;overflow:hidden}.item-meta{align-items:center;gap:6px;display:flex}.attachment-chip{background:var(--bg-subtle);border:1px solid var(--border);color:var(--text-muted);border-radius:var(--radius-full);align-items:center;gap:3px;padding:2px 7px;font-size:11px;font-weight:500;display:inline-flex}.email-detail-pane{background:var(--bg-app);flex-direction:column;flex:1;display:flex;overflow:hidden}.detail-empty{color:var(--text-muted);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;display:flex}.detail-empty-icon{background:var(--bg-surface);border-radius:var(--radius-xl);width:72px;height:72px;box-shadow:var(--shadow-sm);justify-content:center;align-items:center;display:flex}.detail-empty p{font-size:16px;font-weight:600}.detail-empty span{font-size:14px}.detail-inner{flex-direction:column;flex:1;display:flex;overflow:hidden}.detail-toolbar{height:var(--header-h);background:var(--bg-surface);border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:8px;padding:0 20px;display:flex}.detail-toolbar-title{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:14px;font-weight:500;overflow:hidden}.detail-actions{flex-shrink:0;align-items:center;gap:6px;display:flex}.action-btn{border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-surface);color:var(--text-secondary);font-size:13px;font-weight:500;font-family:var(--font);cursor:pointer;white-space:nowrap;align-items:center;gap:6px;padding:8px 14px;transition:all .15s;display:inline-flex}.action-btn:hover{background:var(--bg-subtle);color:var(--text-primary);border-color:var(--border-strong)}.action-btn.danger:hover{background:var(--danger-light);color:var(--danger);border-color:var(--danger)}.detail-scroll{flex-direction:column;flex:1;gap:20px;padding:24px;display:flex;overflow-y:auto}.detail-card{background:var(--bg-surface);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden}.detail-card-head{border-bottom:1px solid var(--border);padding:24px 28px 20px}.detail-subject{color:var(--text-primary);margin-bottom:16px;font-size:22px;font-weight:700;line-height:1.3}.detail-participants{flex-direction:column;gap:6px;display:flex}.participant-row{align-items:center;gap:8px;font-size:13px;display:flex}.participant-label{color:var(--text-muted);flex-shrink:0;width:28px;font-weight:500}.participant-value{color:var(--text-primary);background:var(--bg-subtle);border-radius:var(--radius-full);border:1px solid var(--border);padding:3px 10px;font-weight:500}.detail-date{color:var(--text-muted);margin-top:10px;font-size:12px}.attachments-section{border-bottom:1px solid var(--border);background:var(--bg-subtle);padding:16px 28px}.attachments-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px;font-size:12px;font-weight:600}.attachments-grid{flex-wrap:wrap;gap:10px;display:flex}.attachment-card{background:var(--bg-surface);border:1.5px solid var(--border);border-radius:var(--radius-md);width:200px;box-shadow:var(--shadow-sm);transition:all .2s;overflow:hidden}.attachment-card:hover{box-shadow:var(--shadow-md);border-color:var(--accent)}.attachment-card-top{background:var(--bg-subtle);border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:12px;display:flex}.attachment-icon-wrap{background:var(--accent-light);border-radius:var(--radius-sm);width:36px;height:36px;color:var(--accent);flex-shrink:0;justify-content:center;align-items:center;display:flex}.attachment-info{flex:1;min-width:0}.attachment-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:12px;font-weight:600;overflow:hidden}.attachment-type{color:var(--text-muted);margin-top:2px;font-size:11px}.attachment-btns{border-top:1px solid var(--border);display:flex}.attachment-btn{color:var(--text-secondary);font-size:12px;font-weight:500;font-family:var(--font);cursor:pointer;border:none;border-right:1px solid var(--border);background:0 0;flex:1;justify-content:center;align-items:center;gap:5px;padding:9px 6px;transition:all .15s;display:flex}.attachment-btn:last-child{border-right:none}.attachment-btn:hover{background:var(--bg-active);color:var(--accent)}.detail-body{color:var(--text-primary);padding:28px;font-size:15px;line-height:1.75}.detail-body a{color:var(--accent)}.loader-wrap{flex:1;justify-content:center;align-items:center;padding:48px;display:flex}.loader{border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.bottom-nav{height:var(--bottomnav-h);background:var(--bg-surface);border-top:1px solid var(--border);z-index:30;flex-shrink:0;display:none}.bottom-nav-inner{height:100%;display:flex}.bottom-tab{cursor:pointer;font-family:var(--font);color:var(--text-muted);padding-bottom:env(safe-area-inset-bottom);background:0 0;border:none;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:4px;font-size:11px;font-weight:500;transition:all .15s;display:flex;position:relative}.bottom-tab.active{color:var(--accent)}.bottom-tab-icon{position:relative}.bottom-tab-dot{background:var(--accent);border:2px solid var(--bg-surface);border-radius:50%;width:8px;height:8px;position:absolute;top:-3px;right:-6px}.fab{right:20px;bottom:calc(var(--bottomnav-h) + 16px);background:linear-gradient(135deg, var(--accent), var(--accent-dark));color:#fff;cursor:pointer;width:52px;height:52px;box-shadow:0 6px 20px var(--accent-glow);z-index:25;border:none;border-radius:50%;justify-content:center;align-items:center;transition:all .2s;display:none;position:fixed}.fab:hover{transform:scale(1.08)}.modal-overlay{-webkit-backdrop-filter:blur(6px);z-index:100;background:#0f172a80;justify-content:center;align-items:flex-end;padding:0;animation:.2s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-sheet{background:var(--bg-surface);border-radius:var(--radius-xl) var(--radius-xl) 0 0;width:100%;max-width:640px;max-height:90vh;box-shadow:var(--shadow-xl);flex-direction:column;animation:.3s cubic-bezier(.16,1,.3,1) slideUp;display:flex;overflow:hidden}@media (width>=640px){.modal-overlay{align-items:center;padding:24px}.modal-sheet{border-radius:var(--radius-xl);max-height:85vh}}@keyframes slideUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}.modal-handle{background:var(--border-strong);border-radius:99px;flex-shrink:0;width:36px;height:4px;margin:12px auto 0}.modal-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.modal-header h3{font-size:16px;font-weight:700}.modal-body{flex:1;padding:4px 20px 20px;overflow-y:auto}.modal-field{border-bottom:1px solid var(--border);align-items:flex-start;gap:12px;padding:12px 0;display:flex}.modal-field-label{color:var(--text-muted);flex-shrink:0;width:52px;padding-top:2px;font-size:13px;font-weight:600}.modal-field input,.modal-field textarea{font-family:var(--font);color:var(--text-primary);resize:none;background:0 0;border:none;outline:none;flex:1;font-size:14px}.modal-field textarea{min-height:160px;line-height:1.6}.attachment-pills{flex-wrap:wrap;gap:6px;padding:10px 0 0;display:flex}.attachment-pill{background:var(--bg-active);border:1px solid var(--accent-light);color:var(--accent);border-radius:var(--radius-full);align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:500;display:inline-flex}.pill-remove{cursor:pointer;color:inherit;opacity:.6;background:0 0;border:none;padding:0;display:flex}.pill-remove:hover{opacity:1}.modal-footer{border-top:1px solid var(--border);background:var(--bg-subtle);padding:12px 20px;padding-bottom:calc(12px + env(safe-area-inset-bottom));flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;display:flex}.modal-attach-btn{border:1.5px solid var(--border);color:var(--text-secondary);border-radius:var(--radius-sm);font-size:13px;font-weight:500;font-family:var(--font);cursor:pointer;background:0 0;align-items:center;gap:6px;padding:8px 14px;transition:all .15s;display:flex}.modal-attach-btn:hover{background:var(--bg-subtle);color:var(--text-primary)}.modal-send-btn{background:linear-gradient(135deg, var(--accent), var(--accent-dark));color:#fff;border-radius:var(--radius-sm);font-size:14px;font-weight:600;font-family:var(--font);cursor:pointer;box-shadow:0 3px 10px var(--accent-glow);border:none;align-items:center;gap:6px;padding:10px 24px;transition:all .15s;display:flex}.modal-send-btn:hover{transform:translateY(-1px)}.modal-send-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.preview-overlay{z-index:200;background:#000000eb;flex-direction:column;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.preview-bar{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffff0f;border-bottom:1px solid #ffffff1a;flex-shrink:0;align-items:center;gap:14px;height:60px;padding:0 20px;display:flex}.preview-bar-name{color:#ffffffe6;text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:14px;font-weight:600;overflow:hidden}.preview-close-btn{border-radius:var(--radius-sm);color:#fff;font-size:13px;font-weight:600;font-family:var(--font);cursor:pointer;background:#ffffff1a;border:1px solid #fff3;align-items:center;gap:6px;padding:7px 16px;transition:background .15s;display:flex}.preview-close-btn:hover{background:#fff3}.preview-body{flex:1;justify-content:center;align-items:center;padding:24px;display:flex;overflow:hidden}.preview-img{object-fit:contain;border-radius:var(--radius-md);max-width:100%;max-height:100%;box-shadow:0 24px 64px #00000080}.preview-iframe{border-radius:var(--radius-md);border:none;width:100%;max-width:900px;height:100%;box-shadow:0 24px 64px #00000080}@media (width<=768px){body{overflow:hidden}.app-shell{flex-direction:column}.sidebar{display:none}.topbar{display:flex}.bottom-nav{display:block}.fab{display:flex}.main-content{flex:1;height:0}.split-view{flex-direction:column}.email-list-pane{border-right:none;flex:1;width:100%}.split-view.has-detail .email-list-pane,.split-view:not(.has-detail) .email-detail-pane{display:none}.detail-toolbar{padding:0 12px}.detail-scroll{padding:12px}.detail-card-head{padding:16px 18px}.detail-subject{font-size:18px}.detail-body{padding:18px}.attachments-section{padding:14px 18px}.attachment-card{width:100%}}@media (width>=769px){.topbar,.bottom-nav,.fab{display:none}}