:root{--bg: #f7f8fa;--bg-card: #ffffff;--bg-input: #f1f3f5;--bg-hover: #ebf2ee;--bg-active: #d3eadd;--line: #e6e8ec;--line-soft: #eef0f3;--text: #1a1f24;--text-soft: #5a6369;--text-muted: #9ba1a8;--green: #51c98b;--green-soft: #c2eedb;--green-tint: #eaf6f0;--green-deep: #2e9c64;--warn: #d97a3b;--bad: #d04545;--shadow: 0 1px 3px rgba(20,24,32,.05);--radius: 8px;--radius-sm: 4px}*{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text);font:14px/1.55 -apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font:inherit;cursor:pointer}input,textarea{font:inherit}a{color:inherit;cursor:pointer}#root{height:100vh;overflow:hidden}*::-webkit-scrollbar{width:8px;height:8px}*::-webkit-scrollbar-thumb{background:#1418201a;border-radius:4px}*::-webkit-scrollbar-thumb:hover{background:#14182033}*::-webkit-scrollbar-track{background:transparent}.auth-screen{display:flex;align-items:center;justify-content:center;height:100vh;padding:20px}.auth-card{background:var(--bg-card);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:36px 40px 28px;width:100%;max-width:380px}.auth-brand{text-align:center;margin-bottom:24px}.auth-logo{font-size:42px;margin-bottom:8px}.auth-brand h1{margin:0 0 4px;font-size:20px;font-weight:600}.auth-tagline{margin:0;font-size:12px;color:var(--text-muted)}.auth-tabs{display:flex;gap:4px;margin-bottom:24px;border-bottom:1px solid var(--line)}.auth-tab{flex:1;background:transparent;border:0;border-bottom:2px solid transparent;padding:10px 0;font-size:14px;color:var(--text-muted);transition:color .12s,border-color .12s}.auth-tab.active{color:var(--green-deep);border-bottom-color:var(--green);font-weight:500}.auth-form{display:flex;flex-direction:column;gap:14px}.auth-form label{display:block}.auth-form label>span{display:block;font-size:11px;color:var(--text-muted);margin-bottom:6px;letter-spacing:.02em}.auth-form input{width:100%;background:var(--bg-input);border:1px solid transparent;border-radius:var(--radius);padding:10px 12px;font-size:14px;color:var(--text);transition:border-color .12s,background-color .12s}.auth-form input:focus{outline:none;background:var(--bg-card);border-color:var(--green)}.auth-submit{margin-top:8px;background:var(--green);color:#fff;border:0;border-radius:var(--radius);padding:11px;font-size:14px;font-weight:500;letter-spacing:.02em;transition:background-color .12s}.auth-submit:hover{background:var(--green-deep)}.auth-submit:disabled{background:var(--text-muted);cursor:not-allowed}.auth-link-row{display:flex;justify-content:space-between;align-items:center;font-size:11.5px;color:var(--text-muted);margin-top:6px}.auth-link-row a{color:var(--green-deep);text-decoration:none}.auth-link-row a:hover{text-decoration:underline}.auth-info{font-size:12.5px;color:var(--text-soft);line-height:1.6;margin:0}.auth-error{margin-top:12px;background:#fdebeb;border:1px solid #f3b8b8;border-radius:var(--radius-sm);color:var(--bad);font-size:12px;padding:8px 10px}.muted{color:var(--text-muted)}.app{display:grid;grid-template-columns:260px 1fr;height:100vh}.sidebar{background:var(--bg-card);border-right:1px solid var(--line);display:flex;flex-direction:column;overflow-y:auto;padding:20px 18px 14px}.brand{display:flex;align-items:baseline;gap:6px;margin-bottom:18px}.brand-name{font-size:22px;font-weight:600;letter-spacing:-.01em}.brand-tag{font-size:9px;font-weight:600;letter-spacing:.1em;background:var(--text);color:#fff;padding:2px 5px;border-radius:3px;position:relative;top:-2px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin-bottom:12px}.stat-num{font-size:22px;font-weight:600;line-height:1.2;letter-spacing:-.01em}.stat-label{font-size:11px;color:var(--text-muted)}.heatmap{display:grid;grid-template-columns:repeat(13,1fr);grid-auto-rows:8px;grid-auto-flow:column;gap:2px;margin-bottom:4px;padding:4px 0}.hm-day{width:100%;aspect-ratio:1;border-radius:1.5px;background:var(--line-soft)}.hm-day.l1{background:#c5e7d5}.hm-day.l2{background:#8ed6b1}.hm-day.l3{background:var(--green)}.hm-day.l4{background:var(--green-deep)}.heatmap-footer{display:flex;justify-content:space-between;font-size:10px;color:var(--text-muted);letter-spacing:.04em;margin-bottom:16px}.nav{display:flex;flex-direction:column;gap:2px;margin-bottom:18px}.nav-item{display:flex;align-items:center;gap:10px;background:transparent;border:0;padding:8px 10px;border-radius:var(--radius-sm);font-size:13px;color:var(--text-soft);text-align:left;width:100%;transition:background .1s,color .1s}.nav-item:hover{background:var(--bg-hover)}.nav-item.active{background:var(--green-tint);color:var(--green-deep);font-weight:500}.nav-icon{font-size:14px;width:16px;text-align:center;opacity:.8}.tag-tree-wrap{flex:1;overflow-y:auto;margin-bottom:12px}.tag-tree-title{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin:8px 0 6px;padding:0 10px}.tag-row{display:flex;align-items:center;justify-content:space-between;padding:5px 10px;font-size:12.5px;color:var(--text-soft);cursor:pointer;border-radius:var(--radius-sm);user-select:none}.tag-row:hover{background:var(--bg-hover)}.tag-row.active{background:var(--green-tint);color:var(--green-deep)}.tag-row .tag-count{font-size:11px;color:var(--text-muted);background:var(--bg-input);padding:1px 6px;border-radius:8px;min-width:18px;text-align:center}.tag-row.active .tag-count{background:var(--green-soft);color:var(--green-deep)}.sidebar-footer{display:flex;gap:8px;border-top:1px solid var(--line-soft);padding-top:10px}.footer-link{background:transparent;border:0;color:var(--text-muted);padding:4px 6px;font-size:11.5px;border-radius:var(--radius-sm)}.footer-link:hover{background:var(--bg-hover);color:var(--text-soft)}.main{display:flex;flex-direction:column;overflow:hidden}.main-header{display:flex;align-items:center;justify-content:space-between;padding:14px 28px;border-bottom:1px solid var(--line);gap:16px}.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted)}.crumb-current{color:var(--text);font-weight:500}.search-input{flex:0 1 320px;background:var(--bg-input);border:1px solid transparent;border-radius:var(--radius);padding:8px 12px;font-size:13px;color:var(--text);transition:border-color .12s}.search-input:focus{outline:none;background:var(--bg-card);border-color:var(--green)}.composer{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);margin:16px 28px 12px;padding:14px 16px 10px}.composer-input{width:100%;background:transparent;border:0;resize:vertical;min-height:64px;font-size:14.5px;color:var(--text);font-family:inherit;line-height:1.6}.composer-input:focus{outline:none}.composer-bar{display:flex;align-items:center;justify-content:space-between;margin-top:8px;padding-top:8px;border-top:1px solid var(--line-soft)}.composer-hint{font-size:11.5px;color:var(--text-muted)}.composer-actions{display:flex;gap:6px}.btn-primary{background:var(--green);color:#fff;border:0;border-radius:var(--radius-sm);padding:7px 18px;font-size:13px;font-weight:500;transition:background-color .1s}.btn-primary:hover{background:var(--green-deep)}.btn-primary:disabled{background:var(--text-muted);cursor:not-allowed}.btn-ghost{background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);padding:6px 14px;font-size:12.5px;color:var(--text-soft);transition:background .1s,border-color .1s}.btn-ghost:hover{background:var(--bg-hover);border-color:var(--text-muted)}.btn-ghost.small{padding:2px 8px;font-size:11px}.notes-pane{flex:1;overflow-y:auto;padding:0 28px 28px}.notes-meta{display:flex;align-items:center;justify-content:space-between;font-size:11.5px;color:var(--text-muted);margin-bottom:6px;padding:6px 4px;border-bottom:1px solid var(--line-soft)}.notes-list{display:flex;flex-direction:column;gap:12px;padding-top:12px}.note{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;transition:border-color .12s}.note:hover{border-color:var(--text-muted)}.note-header{display:flex;justify-content:space-between;align-items:center;font-size:11.5px;color:var(--text-muted);margin-bottom:8px}.note-time{font-family:ui-monospace,SF Mono,monospace;letter-spacing:.02em}.note-actions{display:flex;gap:4px;opacity:0;transition:opacity .1s}.note:hover .note-actions{opacity:1}.note-act{background:transparent;border:0;padding:2px 6px;border-radius:var(--radius-sm);color:var(--text-muted);font-size:12px}.note-act:hover{background:var(--bg-hover);color:var(--text)}.note-act.danger:hover{color:var(--bad)}.note-tags{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:8px}.note-tag{font-size:11.5px;color:var(--green-deep);background:var(--green-tint);padding:2px 8px;border-radius:8px;cursor:pointer;user-select:none}.note-tag:hover{background:var(--green-soft)}.note-content{font-size:14.5px;line-height:1.75;color:var(--text);white-space:pre-wrap;word-break:break-word}.note-content code{background:var(--bg-input);padding:1px 5px;border-radius:3px;font-family:ui-monospace,SF Mono,monospace;font-size:12.5px}.note-content .inline-tag{color:var(--green-deep);background:var(--green-tint);padding:0 4px;border-radius:3px;cursor:pointer}.notes-bottom{text-align:center;margin-top:16px;padding:8px}.empty-state{text-align:center;padding:40px 20px;color:var(--text-muted)}.toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%);background:var(--text);color:#fff;padding:9px 18px;border-radius:100px;font-size:13px;z-index:100;box-shadow:var(--shadow)}.toast.bad{background:var(--bad)}.toast.warn{background:var(--warn)}.toast.ok{background:var(--green-deep)}@media(max-width:720px){.app{grid-template-columns:1fr;grid-template-rows:auto 1fr}.sidebar{position:fixed;left:0;top:0;bottom:0;width:280px;transform:translate(-100%);transition:transform .2s ease;z-index:50;box-shadow:var(--shadow)}.app.sidebar-open .sidebar{transform:translate(0)}.app.sidebar-open:after{content:"";position:fixed;inset:0;background:#14182066;z-index:40}.main-header{padding:12px 16px}.menu-toggle{display:inline-flex!important}.composer{margin:12px 16px}.notes-pane{padding:0 16px 20px}.search-input{flex:1 1 auto}}.menu-toggle{display:none;background:transparent;border:0;width:32px;height:32px;align-items:center;justify-content:center;font-size:18px;color:var(--text-soft)}.menu-toggle:hover{background:var(--bg-hover);border-radius:var(--radius-sm)}