:root{--bg:#0f1117;--bg-soft:#161a23;--bg-panel:#1b2030;--bg-raised:#232a3d;--border:#2c3550;--border-soft:#232b42;--text:#e8ecf6;--text-dim:#9aa5c0;--text-faint:#5f6a88;--accent:#6c8cff;--accent-soft:#6c8cff29;--danger:#ff6b81;--ok:#4cd7a2;--radius:10px;--shadow:0 8px 30px #00000073;--font:"Instrument Sans", ui-sans-serif, system-ui, -apple-system, sans-serif}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;overflow:hidden}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit}.btn{border:1px solid var(--border);background:var(--bg-raised);color:var(--text);border-radius:8px;align-items:center;gap:6px;padding:7px 14px;font-size:13px;font-weight:500;transition:background .15s,border-color .15s;display:inline-flex}.btn:hover{background:#2b3348}.btn.primary{background:var(--accent);border-color:var(--accent);color:#0d1020;font-weight:600}.btn.primary:hover{background:#82a0ff}.btn.danger:hover{border-color:var(--danger);color:var(--danger)}.btn.ghost{color:var(--text-dim);background:0 0;border-color:#0000}.btn.ghost:hover{color:var(--text);background:var(--bg-raised)}.text-input{background:var(--bg-soft);border:1px solid var(--border);color:var(--text);border-radius:8px;outline:none;width:100%;padding:8px 10px;font-size:13px}.text-input:focus{border-color:var(--accent)}.login-page{justify-content:center;align-items:center;height:100%;display:flex}.login-card{background:var(--bg-panel);border:1px solid var(--border-soft);width:380px;max-width:calc(100vw - 40px);box-shadow:var(--shadow);border-radius:16px;padding:36px 32px}.login-card h1{letter-spacing:-.02em;margin:0 0 4px;font-size:22px;font-weight:650}.login-sub{color:var(--text-dim);margin:0 0 24px;font-size:13px}.login-card label{color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em;margin:14px 0 6px;font-size:12px;font-weight:600;display:block}.login-error{color:var(--danger);margin:12px 0 0;font-size:12.5px}.login-btn{justify-content:center;width:100%;margin-top:22px;padding:10px}.header-actions{align-items:center;gap:10px;display:flex}.user-chip{color:var(--text-dim);align-items:center;gap:8px;margin-right:4px;font-size:13px;display:inline-flex}.role-tag{text-transform:uppercase;letter-spacing:.06em;border-radius:20px;padding:3px 8px;font-size:10.5px;font-style:normal;font-weight:700}.role-tag.admin{color:#ff8fa0;background:#ff6b8126}.role-tag.editor{color:#8fa8ff;background:#6c8cff26}.role-tag.viewer{color:var(--text-dim);background:#9aa5c026}.user-form{grid-template-columns:1fr 1.3fr 1fr .8fr auto;gap:10px;margin-bottom:24px;display:grid}.users-table{border-collapse:collapse;width:100%;font-size:13.5px}.users-table th{text-align:left;text-transform:uppercase;letter-spacing:.06em;color:var(--text-faint);border-bottom:1px solid var(--border-soft);padding:8px 12px;font-size:11px}.users-table td{border-bottom:1px solid var(--border-soft);padding:10px 12px}.users-table .dim{color:var(--text-dim)}.role-select{width:110px;padding:5px 8px}.you-tag{color:var(--accent);background:var(--accent-soft);border-radius:10px;margin-left:6px;padding:2px 8px;font-size:10.5px}.role-legend{color:var(--text-faint);margin-top:28px;font-size:12.5px;line-height:1.5}.role-legend p{margin:4px 0}.role-legend strong{color:var(--text-dim)}.home{height:100%;padding:48px 32px;overflow-y:auto}.home-inner{max-width:960px;margin:0 auto}.home-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.home-header h1{letter-spacing:-.02em;margin:0;font-size:26px;font-weight:650}.home-sub{color:var(--text-dim);margin:0 0 32px;font-size:14px}.diagram-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;display:grid}.diagram-card{background:var(--bg-panel);border:1px solid var(--border-soft);border-radius:var(--radius);cursor:pointer;padding:18px;transition:border-color .15s,transform .15s;position:relative}.diagram-card:hover{border-color:var(--accent);transform:translateY(-2px)}.diagram-card h3{text-overflow:ellipsis;white-space:nowrap;margin:0 0 6px;padding-right:24px;font-size:15px;font-weight:600;overflow:hidden}.diagram-card .meta{color:var(--text-faint);font-size:12px}.type-badge{letter-spacing:.02em;border-radius:20px;margin-bottom:12px;padding:3px 9px;font-size:11px;font-weight:600;display:inline-block}.type-badge.flow{color:#8fa8ff;background:#6c8cff26}.type-badge.feature{color:#5fe0af;background:#4cd7a221}.type-badge.server{color:#ffb26b;background:#ffb26b21}.card-menu-btn{color:var(--text-faint);background:0 0;border:none;border-radius:6px;padding:4px 8px;font-size:18px;line-height:1;position:absolute;top:12px;right:12px}.card-menu-btn:hover{background:var(--bg-raised);color:var(--text)}.card-menu{background:var(--bg-raised);border:1px solid var(--border);box-shadow:var(--shadow);z-index:20;border-radius:8px;min-width:140px;position:absolute;top:38px;right:12px;overflow:hidden}.card-menu button{text-align:left;width:100%;color:var(--text);background:0 0;border:none;padding:9px 14px;font-size:13px;display:block}.card-menu button:hover{background:var(--accent-soft)}.card-menu button.danger{color:var(--danger)}.empty-state{text-align:center;color:var(--text-faint);padding:80px 0}.empty-state p{margin:0 0 16px;font-size:14px}.modal-overlay{z-index:100;background:#05070cb3;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--bg-panel);border:1px solid var(--border);width:460px;max-width:calc(100vw - 40px);box-shadow:var(--shadow);border-radius:14px;padding:24px}.modal h2{margin:0 0 18px;font-size:17px;font-weight:600}.modal label{color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em;margin:16px 0 6px;font-size:12px;font-weight:600;display:block}.type-options{grid-template-columns:1fr 1fr 1fr;gap:10px;display:grid}.type-option{background:var(--bg-soft);border:1px solid var(--border);text-align:center;color:var(--text-dim);border-radius:10px;padding:14px 10px;font-size:12px;font-weight:500}.type-option .icon{margin-bottom:6px;font-size:22px;display:block}.type-option.selected{border-color:var(--accent);background:var(--accent-soft);color:var(--text)}.modal-actions{justify-content:flex-end;gap:10px;margin-top:24px;display:flex}.editor{flex-direction:column;height:100%;display:flex;position:relative}.editor-topbar{background:var(--bg-panel);border-bottom:1px solid var(--border-soft);z-index:10;align-items:center;gap:12px;padding:10px 14px;display:flex}.title-input{color:var(--text);background:0 0;border:1px solid #0000;border-radius:7px;outline:none;width:260px;padding:6px 10px;font-size:14px;font-weight:600}.title-input:hover{border-color:var(--border)}.title-input:focus{border-color:var(--accent);background:var(--bg-soft)}.save-status{color:var(--text-faint);min-width:70px;font-size:12px}.save-status.saved{color:var(--ok)}.topbar-spacer{flex:1}.zoom-label{color:var(--text-dim);text-align:center;min-width:42px;font-size:12px}.editor-body{flex:1;min-height:0;display:flex}.palette{background:var(--bg-panel);border-right:1px solid var(--border-soft);flex-shrink:0;width:200px;padding:14px 12px;overflow-y:auto}.palette h4{text-transform:uppercase;letter-spacing:.07em;color:var(--text-faint);margin:18px 4px 8px;font-size:11px;font-weight:600}.palette h4:first-child{margin-top:0}.palette-header{cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:6px;align-items:center;gap:6px;padding:4px 6px;display:flex}.palette-header:hover{color:var(--text-dim);background:var(--bg-raised)}.chevron{font-size:10px;transition:transform .15s;display:inline-block}.chevron.collapsed{transform:rotate(-90deg)}.palette-item{cursor:grab;color:var(--text-dim);-webkit-user-select:none;user-select:none;border:1px solid #0000;border-radius:8px;align-items:center;gap:10px;padding:8px 10px;font-size:13px;display:flex}.palette-item:hover{background:var(--bg-raised);color:var(--text);border-color:var(--border)}.palette-item svg{flex-shrink:0}.canvas-wrap{background:var(--bg);flex:1;position:relative;overflow:hidden}.diagram-svg{cursor:default;width:100%;height:100%;display:block}.diagram-svg.panning{cursor:grabbing}.diagram-svg.connecting{cursor:crosshair}.node{cursor:move}.node text{-webkit-user-select:none;user-select:none;pointer-events:none}.port{fill:var(--accent);stroke:#0d1020;stroke-width:1.5px;cursor:crosshair;opacity:0;transition:opacity .12s}.node-group:hover .port,.port.visible{opacity:1}.resize-handle{fill:#e8ecf6;stroke:var(--accent);stroke-width:1.5px}.edge-path{fill:none;stroke-width:2px;cursor:pointer}.edge-hit{fill:none;stroke:#0000;stroke-width:14px;cursor:pointer}.edge-label{fill:var(--text-dim);-webkit-user-select:none;user-select:none;font-size:11px}.canvas-hint{background:var(--bg-panel);border:1px solid var(--border-soft);color:var(--text-faint);pointer-events:none;white-space:nowrap;border-radius:20px;padding:6px 16px;font-size:12px;position:absolute;bottom:14px;left:50%;transform:translate(-50%)}.label-editor{z-index:30;background:var(--bg-raised);border:1px solid var(--accent);color:var(--text);text-align:center;min-width:80px;font-size:13px;font-family:var(--font);border-radius:6px;outline:none;padding:4px 8px;position:absolute}.presence{align-items:center;margin-right:4px;display:flex}.presence-avatar{color:#0d1020;border:2px solid var(--bg-panel);cursor:default;border-radius:50%;justify-content:center;align-items:center;width:26px;height:26px;margin-left:-6px;font-size:10px;font-weight:700;display:inline-flex}.presence-avatar:first-child{margin-left:0}.collab-toast{background:var(--bg-raised);border:1px solid var(--border);color:var(--text-dim);z-index:40;box-shadow:var(--shadow);pointer-events:none;border-radius:20px;padding:6px 16px;font-size:12.5px;position:absolute;top:56px;left:50%;transform:translate(-50%)}.fade-enter-active,.fade-leave-active{transition:opacity .25s}.fade-enter-from,.fade-leave-to{opacity:0}.peer-cursor text{-webkit-user-select:none;user-select:none}.btn.active{border-color:var(--accent);color:var(--accent)}.preview-banner{border-bottom:1px solid var(--accent);color:var(--text-dim);z-index:9;background:#6c8cff1a;justify-content:space-between;align-items:center;gap:12px;padding:8px 14px;font-size:12.5px;display:flex}.preview-banner strong{color:var(--text);font-weight:600}.preview-banner-actions{flex-shrink:0;gap:8px;display:flex}.history-panel{width:260px}.version-item{border:1px solid var(--border-soft);cursor:pointer;border-radius:10px;margin-bottom:10px;padding:10px 12px;transition:border-color .15s;position:relative}.version-item:hover{border-color:var(--border)}.version-item.active{border-color:var(--accent);background:var(--accent-soft)}.version-head{justify-content:space-between;align-items:center;margin-bottom:4px;display:flex}.version-action{text-transform:uppercase;letter-spacing:.06em;border-radius:12px;padding:2px 8px;font-size:10px;font-weight:700}.version-action.created{color:#5fe0af;background:#4cd7a221}.version-action.updated{color:#8fa8ff;background:#6c8cff26}.version-action.reverted{color:#ffb26b;background:#ffb26b24}.version-time{color:var(--text-faint);font-size:11px}.version-user{margin-bottom:2px;font-size:12.5px;font-weight:600}.version-meta{color:var(--text-faint);font-size:11.5px}.version-restore{justify-content:center;width:100%;margin-top:8px;padding:5px 10px;font-size:12px}.inspector{background:var(--bg-panel);border-left:1px solid var(--border-soft);flex-shrink:0;width:230px;padding:16px 14px;overflow-y:auto}.inspector h4{text-transform:uppercase;letter-spacing:.07em;color:var(--text-faint);margin:0 0 12px;font-size:11px;font-weight:600}.inspector .field{margin-bottom:14px}.inspector .field>span{color:var(--text-dim);margin-bottom:6px;font-size:12px;display:block}.swatches{grid-template-columns:repeat(6,1fr);gap:6px;display:grid}.swatch{aspect-ratio:1;cursor:pointer;border:2px solid #0000;border-radius:6px;padding:0}.swatch.selected{border-color:#fff}.inspector-empty{color:var(--text-faint);font-size:12.5px;line-height:1.6}.kbd-row{color:var(--text-faint);justify-content:space-between;margin-bottom:7px;font-size:11.5px;display:flex}kbd{background:var(--bg-raised);border:1px solid var(--border);color:var(--text-dim);border-radius:4px;padding:1px 6px;font-family:inherit;font-size:10.5px}