:root{--bg-primary: #0F0F0F;--bg-secondary: #171717;--bg-tertiary: #262626;--bg-elevated: #1F1F1F;--border: #2A2A2A;--text-primary: #F5F5F5;--text-secondary: #A3A3A3;--text-tertiary: #737373}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg-primary)}.login-box{background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;padding:40px;width:100%;max-width:380px;box-shadow:0 0 60px #00000080}.login-box h1{font-size:28px;font-weight:700;margin-bottom:4px}.login-box .subtitle{color:var(--text-tertiary);font-size:14px;margin-bottom:32px}.user-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.user-pick{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 8px;background:var(--bg-tertiary);border:2px solid transparent;border-radius:12px;cursor:pointer;font-family:inherit;font-size:13px;font-weight:500;color:var(--text-primary);transition:all .2s}.user-pick:hover{border-color:var(--user-color);background:var(--bg-elevated);transform:translateY(-2px)}.user-pick-avatar{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:20px}.login-box input{width:100%;padding:12px 16px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:10px;color:var(--text-primary);font-size:14px;font-family:inherit;margin-bottom:12px;outline:none;transition:border-color .2s}.login-box input:focus{border-color:#60a5fa}.login-box button{width:100%;padding:12px;background:linear-gradient(135deg,#60a5fa,#a78bfa);border:none;border-radius:10px;color:#fff;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;margin-top:8px;transition:opacity .2s}.login-box button:hover{opacity:.9}.login-error{color:#f87171;font-size:13px;margin-top:12px;text-align:center}.app-layout{display:flex;height:100vh}.sidebar{width:280px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}.sidebar-header{padding:20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.sidebar-header h2{font-size:18px;font-weight:700}.btn-new-note{padding:6px 14px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:13px;cursor:pointer;font-family:inherit;transition:background .2s}.btn-new-note:hover{background:var(--bg-elevated)}.note-list{flex:1;overflow-y:auto;padding:8px}.note-item{padding:12px 14px;border-radius:10px;cursor:pointer;margin-bottom:2px;transition:background .15s;position:relative}.note-item:hover,.note-item.active{background:var(--bg-tertiary)}.note-item-title{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.note-item-meta{font-size:12px;color:var(--text-tertiary);margin-top:4px;display:flex;align-items:center;gap:6px}.note-item-dot{width:8px;height:8px;border-radius:50%;display:inline-block}.flash-badge{font-size:11px;background:#fbbf2426;color:#fbbf24;padding:1px 6px;border-radius:4px;margin-left:auto}.sidebar-user{padding:16px 20px;border-top:1px solid var(--border);display:flex;align-items:center;gap:10px}.user-avatar{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:14px}.sidebar-user span{font-size:14px;font-weight:500}.btn-logout{margin-left:auto;padding:4px 10px;background:none;border:1px solid var(--border);border-radius:6px;color:var(--text-tertiary);font-size:12px;cursor:pointer;font-family:inherit}.btn-logout:hover{color:#f87171;border-color:#f87171}.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.main-header{padding:14px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--bg-secondary)}.activity-stats{font-size:13px;color:var(--text-tertiary);display:flex;gap:12px;align-items:center}.online-dot{width:8px;height:8px;border-radius:50%;background:#34d399;display:inline-block}.editor-container{flex:1;overflow-y:auto;padding:32px 48px;max-width:800px;margin:0 auto;width:100%}.note-title-input{width:100%;background:none;border:none;outline:none;color:var(--text-primary);font-size:32px;font-weight:700;font-family:inherit;margin-bottom:24px}.note-title-input::placeholder{color:var(--text-tertiary)}.empty-state{display:flex;align-items:center;justify-content:center;flex:1;color:var(--text-tertiary);font-size:15px}.ProseMirror{outline:none;min-height:300px;font-size:15px;line-height:1.7;color:var(--text-primary)}.ProseMirror p{margin-bottom:8px}.ProseMirror h2{font-size:24px;font-weight:700;margin:24px 0 8px}.ProseMirror h3{font-size:18px;font-weight:600;margin:16px 0 6px;color:var(--text-secondary)}.ProseMirror ul,.ProseMirror ol{padding-left:24px;margin-bottom:8px}.ProseMirror blockquote{border-left:3px solid #A78BFA;padding-left:16px;color:var(--text-secondary);margin:12px 0}.ProseMirror pre{background:var(--bg-tertiary);border-radius:8px;padding:16px;font-family:JetBrains Mono,monospace;font-size:13px;overflow-x:auto;margin:12px 0}.ProseMirror code{background:var(--bg-tertiary);padding:2px 6px;border-radius:4px;font-family:JetBrains Mono,monospace;font-size:13px}.ProseMirror hr{border:none;border-top:1px solid var(--border);margin:24px 0}.ProseMirror ul[data-type=taskList]{list-style:none;padding-left:0}.ProseMirror ul[data-type=taskList] li{display:flex;align-items:flex-start;gap:8px;margin-bottom:4px}.ProseMirror ul[data-type=taskList] li label input[type=checkbox]{margin-top:4px;accent-color:#60A5FA}.ProseMirror p.is-editor-empty:first-child:before{content:attr(data-placeholder);color:var(--text-tertiary);pointer-events:none;float:left;height:0}.mention{padding:2px 6px;border-radius:4px;font-weight:500;font-size:14px}.reactions-bar{display:flex;gap:6px;padding:16px 0;margin-top:16px;border-top:1px solid var(--border);flex-wrap:wrap}.reaction-btn{padding:4px 10px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:20px;cursor:pointer;font-size:14px;display:flex;align-items:center;gap:4px;transition:all .15s}.reaction-btn:hover{background:var(--bg-elevated)}.reaction-btn.active{border-color:#60a5fa;background:#60a5fa1a}.reaction-count{font-size:12px;color:var(--text-secondary)}.reaction-users{display:flex;margin-left:2px}.reaction-user-dot{width:6px;height:6px;border-radius:50%;margin-left:-2px}.slash-menu{background:var(--bg-elevated);border:1px solid var(--border);border-radius:12px;box-shadow:0 8px 30px #0006;width:280px;max-height:360px;overflow-y:auto;padding:6px;animation:slideUp .15s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.slash-menu-category{font-size:11px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.5px;padding:8px 10px 4px}.slash-menu-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;cursor:pointer;transition:background .1s}.slash-menu-item:hover,.slash-menu-item.selected{background:var(--bg-tertiary)}.slash-menu-icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--bg-tertiary);border-radius:6px;font-size:16px;flex-shrink:0}.slash-menu-text{flex:1;min-width:0}.slash-menu-name{font-size:13px;font-weight:500}.slash-menu-desc{font-size:11px;color:var(--text-tertiary)}.mention-menu{background:var(--bg-elevated);border:1px solid var(--border);border-radius:10px;box-shadow:0 8px 30px #0006;padding:6px;animation:slideUp .15s ease-out}.mention-item{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:8px;cursor:pointer;font-size:14px}.mention-item:hover,.mention-item.selected{background:var(--bg-tertiary)}.mention-avatar{width:24px;height:24px;border-radius:6px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:11px}.effect-toasts{position:fixed;bottom:20px;right:20px;z-index:10000;display:flex;flex-direction:column-reverse;gap:8px}.effect-toast{background:var(--bg-elevated);border-radius:8px;padding:10px 16px;font-size:13px;display:flex;align-items:center;gap:8px;animation:toastIn .3s ease-out;box-shadow:0 4px 20px #0000004d}.effect-toast.leaving{animation:toastOut .3s ease-in forwards}@keyframes toastIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes toastOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(10px)}}.toast-dot{width:8px;height:8px;border-radius:50%}.effect-overlay{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:9999}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#333;border-radius:3px}