:root{--bg: #f7f5f8;--surface: #ffffff;--text-primary: #241b2b;--text-secondary: #6e6478;--border: #e6dfea;--accent: #a2549a;--accent-strong: #6b2f63;--accent-soft: rgba(162, 84, 154, .1);--grad: linear-gradient(135deg, #a2549a, #6b2f63);--shadow-sm: 0 1px 3px rgba(36, 27, 43, .08);--shadow-md: 0 6px 24px rgba(36, 27, 43, .12);--island-bg: rgba(255, 255, 255, .82);--canvas-dot: #d9d0de;--danger: #c93b52;color-scheme:light}:root[data-theme=dark]{--bg: #16131a;--surface: #211c27;--text-primary: #efeaf2;--text-secondary: #a79fb0;--border: #37303f;--accent: #bc6db3;--accent-strong: #a2549a;--accent-soft: rgba(188, 109, 179, .14);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow-md: 0 6px 24px rgba(0, 0, 0, .45);--island-bg: rgba(33, 28, 39, .85);--canvas-dot: #322b3a;--danger: #e46a7e;color-scheme:dark}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%}body{font-family:Inter,system-ui,-apple-system,sans-serif;font-weight:400;background:var(--bg);color:var(--text-primary);transition:background .25s ease,color .25s ease;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-weight:500;margin:0}a{color:var(--accent);text-decoration:none}button{font-family:inherit;font-size:inherit;cursor:pointer}input,textarea,select{font-family:inherit}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:12px;border:1px solid transparent;font-size:15px;font-weight:500;transition:filter .15s ease,background .15s ease,border-color .15s ease;text-decoration:none}.btn-primary{background:var(--grad);color:#fff}.btn-primary:hover{filter:brightness(1.1)}.btn-secondary{background:var(--surface);color:var(--text-primary);border-color:var(--border)}.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}.btn-ghost{background:transparent;color:var(--text-secondary);border:none;padding:8px 12px;border-radius:10px}.btn-ghost:hover,.btn-ghost.active{background:var(--accent-soft);color:var(--accent)}.btn-danger{background:transparent;color:var(--danger);border-color:var(--border)}.btn-danger:hover{border-color:var(--danger);background:#c93b5214}.btn:disabled{opacity:.5;cursor:not-allowed}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;border:none;background:transparent;color:var(--text-secondary);font-size:19px;transition:background .15s ease,color .15s ease}.icon-btn:hover{background:var(--accent-soft);color:var(--accent)}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.field label{font-size:13px;font-weight:500;color:var(--text-secondary)}.field input,.field select,.field textarea{padding:10px 14px;border-radius:10px;border:1px solid var(--border);background:var(--bg);color:var(--text-primary);font-size:15px;outline:none;transition:border-color .15s ease}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}.form-error{color:var(--danger);font-size:13px;margin:4px 0 12px}.app-header{display:flex;align-items:center;justify-content:space-between;padding:14px 32px;width:100%}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-primary);font-size:19px;font-weight:500;letter-spacing:-.02em}.header-nav{display:flex;align-items:center;gap:8px}.landing{min-height:100%;display:flex;flex-direction:column;overflow-x:hidden}.hero{position:relative;text-align:center;padding:72px 24px 56px;max-width:760px;margin:0 auto}.hero>*{position:relative;z-index:1;animation:rise-in .6s ease-out both}.hero h1{animation-delay:.08s}.hero .subtitle{animation-delay:.16s}.hero .hero-actions{animation-delay:.26s}@keyframes rise-in{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}.hero .hero-blob{position:absolute;z-index:0;border-radius:50%;filter:blur(80px);pointer-events:none;animation:blob-float 12s ease-in-out infinite alternate}.hero .hero-blob-a{width:360px;height:360px;background:var(--accent);opacity:.3;top:-80px;left:-140px}.hero .hero-blob-b{width:300px;height:300px;background:#3b82f6;opacity:.18;right:-120px;top:140px;animation-duration:15s;animation-direction:alternate-reverse}@keyframes blob-float{0%{transform:translate(0) scale(1)}to{transform:translate(50px,34px) scale(1.18)}}.hero h1{font-size:52px;letter-spacing:-.03em;margin:28px 0 12px}.hero .subtitle{font-size:19px;color:var(--text-secondary);margin:0 0 32px;line-height:1.55}.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}.benefits{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;max-width:960px;margin:0 auto;padding:24px}.benefit-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:26px}.benefit-card i{font-size:28px;color:var(--accent)}.benefit-card h3{margin:14px 0 8px;font-size:17px}.benefit-card p{margin:0;color:var(--text-secondary);font-size:14.5px;line-height:1.55}.demo-section{max-width:960px;margin:40px auto;padding:0 24px;width:100%}.demo-section h2{text-align:center;font-size:26px;margin-bottom:24px;letter-spacing:-.02em}.demo-frame{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:16px;box-shadow:var(--shadow-md);overflow-x:auto}.demo-frame svg{display:block;width:100%;height:auto;min-width:560px}.demo-anim .da-lane,.demo-anim .da-node,.demo-anim .da-edge{opacity:0}.demo-anim .da-node{transform-box:fill-box;transform-origin:center}.demo-anim.animate .da-lane{animation:rise-in .7s ease-out both}.demo-anim.animate .da-node{animation:demo-pop .5s cubic-bezier(.34,1.56,.64,1) both}.demo-anim.animate .da-edge{stroke-dasharray:1;animation:demo-draw .45s ease-out both}@keyframes demo-pop{0%{opacity:0;transform:scale(.55)}to{opacity:1;transform:scale(1)}}@keyframes demo-draw{0%{opacity:1;stroke-dashoffset:1}to{opacity:1;stroke-dashoffset:0}}@media(prefers-reduced-motion:reduce){.hero>*,.hero .hero-blob,.demo-anim.animate .da-lane,.demo-anim.animate .da-node,.demo-anim.animate .da-edge{animation:none!important}.demo-anim .da-lane,.demo-anim .da-node,.demo-anim .da-edge{opacity:1}}.landing-footer{margin-top:auto;border-top:1px solid var(--border);padding:28px 24px;text-align:center;color:var(--text-secondary);font-size:14px}.auth-page{min-height:100%;display:flex;flex-direction:column}.auth-card-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:36px;box-shadow:var(--shadow-sm)}.auth-card h2{font-size:24px;margin-bottom:6px;letter-spacing:-.02em}.auth-card .auth-hint{color:var(--text-secondary);font-size:14px;margin:0 0 24px}.auth-switch{margin-top:20px;font-size:14px;color:var(--text-secondary);text-align:center}.demo-tip{margin-top:18px;padding:10px 14px;border-radius:10px;background:var(--accent-soft);font-size:13px;color:var(--text-secondary);line-height:1.5}.page-body{max-width:1100px;margin:0 auto;padding:12px 28px 60px;width:100%}.page-title-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:18px 0 24px;flex-wrap:wrap}.page-title-row h2{font-size:26px;letter-spacing:-.02em}.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}.diagram-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:border-color .15s ease,box-shadow .15s ease;display:flex;flex-direction:column}.diagram-card:hover{border-color:var(--accent);box-shadow:var(--shadow-sm)}.diagram-card .thumb{background:var(--bg);border-bottom:1px solid var(--border);display:block;cursor:pointer}.diagram-card .thumb svg{display:block;width:100%;height:130px}.diagram-card .card-info{padding:14px 16px;display:flex;flex-direction:column;gap:6px;flex:1}.diagram-card .card-name{font-weight:500;color:var(--text-primary);font-size:15px}.card-meta-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.card-date{font-size:12.5px;color:var(--text-secondary)}.dash-filters{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:14px}.segmented{display:inline-flex;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--surface)}.segmented button{padding:9px 18px;border:none;background:transparent;color:var(--text-secondary);font-size:14px;font-weight:500;transition:background .15s ease,color .15s ease}.segmented button.active{background:var(--grad);color:#fff}.search-box{display:inline-flex;align-items:center;gap:8px;padding:0 12px;border:1px solid var(--border);border-radius:12px;background:var(--surface);color:var(--text-secondary)}.search-box input{border:none;background:transparent;color:var(--text-primary);font-size:14px;padding:9px 0;outline:none;min-width:190px}.tag-filter-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.tag-chip{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:500;border:1px solid transparent}.tag-chip.clickable{cursor:pointer;transition:border-color .15s ease}.tag-chip.clickable:hover{border-color:var(--accent)}.tag-chip.active{background:var(--grad);color:#fff}.tag-chip button{border:none;background:transparent;color:inherit;padding:0;font-size:11px;display:inline-flex}.card-tags{display:flex;flex-wrap:wrap;gap:5px}.owner-chip{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;color:var(--text-secondary)}.card-actions{display:flex;gap:2px;padding:0 8px 8px;justify-content:flex-end}.empty-state{text-align:center;padding:70px 20px;color:var(--text-secondary)}.empty-state i{font-size:44px;color:var(--accent);opacity:.6}.modal-backdrop{position:fixed;inset:0;background:#140c1880;display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}.modal{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:28px;width:100%;max-width:440px;box-shadow:var(--shadow-md)}.modal h3{font-size:19px;margin-bottom:18px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}.import-errors{background:#c93b5214;border:1px solid var(--danger);border-radius:10px;padding:10px 14px;margin-top:12px;font-size:13px;color:var(--danger)}.import-errors ul{margin:4px 0 0;padding-left:18px}.profile-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:28px;max-width:520px;margin-bottom:28px}.profile-avatar{width:56px;height:56px;border-radius:16px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:500;margin-bottom:16px}.profile-card .email{color:var(--text-secondary);font-size:14.5px}.editor-page{height:100%;display:flex;flex-direction:column;overflow:hidden}.editor-topbar{display:flex;align-items:center;gap:10px;padding:8px 14px;background:var(--surface);border-bottom:1px solid var(--border);z-index:20;flex-wrap:wrap}.editor-topbar .title-input{border:1px solid transparent;background:transparent;color:var(--text-primary);font-size:15.5px;font-weight:500;padding:6px 10px;border-radius:8px;min-width:120px;max-width:300px;outline:none}.editor-topbar .title-input:hover,.editor-topbar .title-input:focus{border-color:var(--border);background:var(--bg)}.editor-topbar .spacer{flex:1}.avatar-img{width:22px;height:22px;border-radius:50%;object-fit:cover}.save-status{font-size:12.5px;color:var(--text-secondary);padding:0 6px;white-space:nowrap}.save-status.error{color:var(--danger)}.readonly-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:500}.editor-main{flex:1;position:relative;overflow:hidden;display:flex}.canvas-wrap{flex:1;position:relative;overflow:hidden;background:var(--bg)}.canvas-wrap svg.canvas-svg{display:block;width:100%;height:100%;touch-action:none;user-select:none;-webkit-user-select:none}.toolbar-island{position:absolute;display:flex;align-items:center;gap:4px;padding:8px 10px;border-radius:22px;background:var(--island-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);box-shadow:var(--shadow-md);z-index:30;-webkit-user-select:none;user-select:none;touch-action:none}.toolbar-island .drag-handle{color:var(--text-secondary);font-size:16px;padding:0 4px;cursor:grab;display:flex;align-items:center}.toolbar-island .separator{width:1px;height:24px;background:var(--border);margin:0 4px}.tool-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;border:none;background:transparent;color:var(--text-primary);font-size:19px;transition:background .12s ease,color .12s ease}.tool-btn:hover{background:var(--accent-soft)}.tool-btn.active{background:var(--grad);color:#fff}.tool-btn:disabled{opacity:.35;cursor:default}.tool-btn:disabled:hover{background:transparent}.zoom-controls{position:absolute;left:16px;bottom:16px;display:flex;align-items:center;gap:2px;padding:4px 6px;border-radius:14px;background:var(--island-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--border);box-shadow:var(--shadow-sm);z-index:30}.zoom-controls .zoom-value{font-size:13px;color:var(--text-secondary);min-width:46px;text-align:center;border:none;background:transparent;padding:4px;border-radius:8px}.zoom-controls .zoom-value:hover{background:var(--accent-soft);color:var(--accent)}.lane-panel{width:270px;background:var(--surface);border-left:1px solid var(--border);padding:18px;overflow-y:auto;z-index:25}.lane-panel h3{font-size:15px;margin-bottom:4px}.lane-panel .panel-sub{font-size:12.5px;color:var(--text-secondary);margin:0 0 16px;line-height:1.5}.lane-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}.lane-row input{flex:1;min-width:0;padding:8px 10px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text-primary);font-size:14px;outline:none}.lane-row input:focus{border-color:var(--accent)}.info-panel{width:320px}.info-panel h4{font-size:13.5px;margin:18px 0 6px;color:var(--text-primary)}.info-textarea,.info-input{width:100%;padding:9px 11px;border-radius:10px;border:1px solid var(--border);background:var(--bg);color:var(--text-primary);font-size:13.5px;outline:none;resize:vertical}.info-textarea:focus,.info-input:focus{border-color:var(--accent)}.info-input{margin-top:8px}.info-preview{margin-top:12px;padding:10px 12px;border-radius:10px;background:var(--accent-soft);font-size:13.5px;line-height:1.7;white-space:pre-wrap;word-break:break-word}.ref-chip{display:inline-flex;align-items:center;gap:3px;padding:1px 8px;margin:0 1px;border-radius:999px;border:1px solid var(--accent);background:var(--surface);color:var(--accent);font-size:12.5px;font-weight:500;cursor:pointer;vertical-align:baseline;transition:background .15s ease,color .15s ease}.ref-chip:hover{background:var(--accent);color:#fff}.tag-row{display:flex;flex-wrap:wrap;gap:6px}.toggle-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;cursor:pointer}.toggle-row input{margin-top:3px;accent-color:var(--accent)}.toggle-row small{display:block;color:var(--text-secondary);font-size:12.5px}.editor-email-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:4px 0 4px 10px;border:1px solid var(--border);border-radius:10px;margin-bottom:6px;font-size:13.5px}.icon-dock{position:absolute;left:14px;top:74px;z-index:30;display:flex;flex-direction:column;width:56px;max-height:min(340px,calc(100% - 190px));border-radius:16px;background:var(--island-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);box-shadow:var(--shadow-md)}.icon-dock-grip{display:flex;justify-content:center;padding:5px 0 2px;color:var(--text-secondary);font-size:14px;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none}.icon-dock-upload{display:flex;align-items:center;justify-content:center;flex:0 0 auto;margin:2px 10px 4px;padding:5px 0;border:1px dashed var(--border);border-radius:9px;background:transparent;color:var(--text-secondary);font-size:15px;cursor:pointer;transition:color .15s ease,border-color .15s ease,background .15s ease}.icon-dock-upload:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}.icon-dock-list{display:flex;flex-direction:column;gap:3px;padding:3px 10px 10px;min-height:0;overflow-y:auto;scrollbar-width:thin;scrollbar-color:rgba(128,118,136,.28) transparent}.icon-dock-list::-webkit-scrollbar{width:5px}.icon-dock-list::-webkit-scrollbar-track{background:transparent}.icon-dock-list::-webkit-scrollbar-thumb{background:#80768847;border-radius:999px}.icon-dock-list img{width:32px;height:32px;border-radius:8px;cursor:grab;flex:0 0 auto;filter:grayscale(1);opacity:.8;transition:filter .15s ease,opacity .15s ease,transform .15s ease}.icon-dock-list img:hover{filter:none;opacity:1;transform:scale(1.2)}.icon-dock-preview{position:absolute;z-index:31;transform:translateY(-50%);display:flex;align-items:center;gap:10px;padding:8px 14px 8px 8px;border-radius:14px;background:var(--island-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);box-shadow:var(--shadow-md);pointer-events:none}.icon-dock-preview img{width:52px;height:52px;border-radius:10px}.icon-dock-preview span{font-size:13px;font-weight:500;white-space:nowrap}.color-island{position:absolute;top:14px;right:16px;z-index:30;display:flex;align-items:center;gap:6px;padding:8px 10px;border-radius:16px;background:var(--island-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);box-shadow:var(--shadow-md)}.color-swatch{width:21px;height:21px;border-radius:50%;border:2px solid var(--surface);outline:1px solid var(--border);padding:0;transition:transform .12s ease}.color-swatch:hover{transform:scale(1.2)}.color-swatch.active{outline:2px solid var(--text-primary)}.id-badge{position:absolute;z-index:35;transform:translate(-50%,-100%);display:flex;align-items:center;gap:6px;padding:4px 6px 4px 10px;border-radius:10px;background:var(--island-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);box-shadow:var(--shadow-sm);font-size:12px}.id-badge code{color:var(--text-secondary);font-family:Consolas,monospace}.id-badge button{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border:none;border-radius:7px;background:transparent;color:var(--accent);font-size:14px}.id-badge button:hover{background:var(--accent-soft)}.flash-ring{animation:flash-pulse .95s ease-in-out 2}@keyframes flash-pulse{0%,to{opacity:1}50%{opacity:.12}}.inline-editor{position:absolute;z-index:40;transform:translate(-50%,-50%)}.inline-editor textarea{background:var(--surface);color:var(--text-primary);border:1.5px solid var(--accent);border-radius:8px;padding:6px 8px;font-size:13.5px;font-family:inherit;text-align:center;resize:none;outline:none;box-shadow:var(--shadow-md)}.readonly-banner{position:absolute;bottom:16px;left:50%;transform:translate(-50%);background:var(--island-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:14px;padding:10px 18px;font-size:13.5px;color:var(--text-secondary);box-shadow:var(--shadow-sm);z-index:30;display:flex;align-items:center;gap:10px}.toast-stack{position:fixed;bottom:24px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:8px;z-index:200;align-items:center}.toast{background:var(--text-primary);color:var(--bg);padding:10px 20px;border-radius:12px;font-size:14px;box-shadow:var(--shadow-md);animation:toast-in .2s ease}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media(max-width:640px){.hero h1{font-size:38px}.app-header{padding:12px 16px}.page-body{padding:12px 16px 40px}.lane-panel{position:absolute;right:0;top:0;bottom:0}}
