*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--nav-width: 220px;--header-height: 50px;--statusbar-height: 28px;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;--color-bg: #f8f9fa;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1a202c;--color-text-secondary: #64748b;--color-text-muted: #94a3b8;--color-accent: #3b82f6;--color-accent-light: #eff6ff;--color-accent-dark: #1d4ed8;--color-success: #22c55e;--color-success-light: #f0fdf4;--color-warning: #f59e0b;--color-warning-light: #fffbeb;--color-error: #ef4444;--color-error-light: #fef2f2;--color-info: #3b82f6;--color-info-light: #eff6ff}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);line-height:1.5;-webkit-font-smoothing:antialiased}.shell{display:grid;grid-template-columns:var(--nav-width) 1fr;grid-template-rows:var(--header-height) 1fr var(--statusbar-height);height:100vh;overflow:hidden}.shell-header{grid-column:1 / -1;display:flex;align-items:center;gap:12px;padding:0 20px;background:var(--color-surface);border-bottom:1px solid var(--color-border);z-index:10}.shell-header__logo{font-size:15px;font-weight:700;letter-spacing:-.02em}.shell-header__badge{font-size:11px;font-weight:500;color:var(--color-accent);background:var(--color-accent-light);padding:2px 8px;border-radius:10px}.shell-header__spacer{flex:1}.shell-header__meta{display:flex;gap:16px;font-size:11px;font-family:var(--font-mono);color:var(--color-text-secondary)}.shell-header__meta-item{display:flex;align-items:center;gap:4px}.shell-sidebar{background:var(--color-surface);border-right:1px solid var(--color-border);padding:12px 0;overflow-y:auto}.nav-section{padding:0 12px;margin-bottom:4px}.nav-section__title{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted);padding:8px 8px 4px}.nav-item{display:flex;align-items:center;gap:8px;width:100%;padding:7px 10px;border:none;border-radius:6px;background:transparent;color:var(--color-text-secondary);font-size:13px;font-family:var(--font-sans);cursor:pointer;text-align:left;transition:all .15s}.nav-item:hover{background:var(--color-bg);color:var(--color-text)}.nav-item--active{background:var(--color-accent-light);color:var(--color-accent-dark);font-weight:600}.nav-item__icon{width:18px;text-align:center;font-size:14px;flex-shrink:0}.shell-main{overflow:hidden;padding:0}.shell-main--padded{overflow-y:auto;padding:24px 32px;height:100%}.shell-statusbar{grid-column:1 / -1;display:flex;align-items:center;gap:16px;padding:0 16px;background:#1e293b;color:#94a3b8;font-size:11px;font-family:var(--font-mono);border-top:1px solid #334155}.shell-statusbar__item{display:flex;align-items:center;gap:4px}.shell-statusbar__dot{width:6px;height:6px;border-radius:50%;background:var(--color-success)}.shell-statusbar__dot--warning{background:var(--color-warning)}.shell-statusbar__dot--error{background:var(--color-error)}.shell-statusbar__spacer{flex:1}.shell-statusbar__notif-btn{all:unset;display:flex;align-items:center;gap:4px;cursor:pointer;padding:2px 8px;border-radius:3px;font-size:11px;font-family:var(--font-mono);color:#94a3b8;transition:background .15s}.shell-statusbar__notif-btn:hover{background:#334155;color:#e2e8f0}.notification-toasts{position:fixed;top:16px;right:16px;z-index:9999;display:flex;flex-direction:column;gap:8px;max-width:400px;pointer-events:none}.notification-toast{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:8px;background:#1e293b;color:#e2e8f0;font-size:13px;box-shadow:0 4px 16px #0000004d;pointer-events:auto;animation:toast-slide-in .25s ease-out;border-left:3px solid #94a3b8}.notification-toast--success{border-left-color:var(--color-success)}.notification-toast--error{border-left-color:var(--color-error)}.notification-toast--warning{border-left-color:var(--color-warning)}.notification-toast--info{border-left-color:var(--color-accent)}.notification-toast__icon{flex-shrink:0;font-size:14px}.notification-toast--success .notification-toast__icon{color:var(--color-success)}.notification-toast--error .notification-toast__icon{color:var(--color-error)}.notification-toast--warning .notification-toast__icon{color:var(--color-warning)}.notification-toast--info .notification-toast__icon{color:var(--color-accent)}.notification-toast__message{flex:1;line-height:1.4}.notification-toast__close{all:unset;cursor:pointer;font-size:16px;color:#64748b;padding:2px 4px;line-height:1;border-radius:4px}.notification-toast__close:hover{color:#e2e8f0;background:#334155}@keyframes toast-slide-in{0%{opacity:0;transform:translate(24px)}to{opacity:1;transform:translate(0)}}.notification-panel{position:fixed;bottom:var(--statusbar-height);right:16px;width:380px;max-height:400px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px 8px 0 0;box-shadow:0 -4px 24px #0000001f;z-index:9000;display:flex;flex-direction:column;overflow:hidden}.notification-panel__header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--color-border);background:var(--color-bg)}.notification-panel__title{font-size:13px;font-weight:600}.notification-panel__actions{display:flex;gap:8px;align-items:center}.notification-panel__close{all:unset;cursor:pointer;font-size:18px;color:var(--color-text-secondary);line-height:1;padding:2px 4px;border-radius:4px}.notification-panel__close:hover{color:var(--color-text);background:var(--color-border)}.notification-panel__body{overflow-y:auto;flex:1;padding:4px 0}.notification-panel__empty{padding:24px 16px;text-align:center;color:var(--color-text-muted);font-size:13px}.notification-panel__item{display:flex;align-items:flex-start;gap:10px;padding:8px 14px;border-bottom:1px solid var(--color-border)}.notification-panel__item:last-child{border-bottom:none}.notification-panel__item-icon{flex-shrink:0;font-size:13px;margin-top:2px}.notification-panel__item--success .notification-panel__item-icon{color:var(--color-success)}.notification-panel__item--error .notification-panel__item-icon{color:var(--color-error)}.notification-panel__item--warning .notification-panel__item-icon{color:var(--color-warning)}.notification-panel__item--info .notification-panel__item-icon{color:var(--color-accent)}.notification-panel__item-body{flex:1;min-width:0}.notification-panel__item-msg{display:block;font-size:13px;line-height:1.4;color:var(--color-text)}.notification-panel__item-time{display:block;font-size:11px;color:var(--color-text-muted);margin-top:2px}.notification-panel__item-dismiss{all:unset;cursor:pointer;font-size:14px;color:var(--color-text-muted);padding:2px 4px;border-radius:4px;line-height:1}.notification-panel__item-dismiss:hover{color:var(--color-text);background:var(--color-border)}.page-header{margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--color-border)}.page-header__title{font-size:20px;font-weight:700;letter-spacing:-.02em;margin-bottom:4px}.page-header__desc{font-size:13px;color:var(--color-text-secondary)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;margin-bottom:16px}.card__header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--color-border)}.card__title{font-size:13px;font-weight:600}.card__badge{font-size:11px;font-family:var(--font-mono);color:var(--color-text-muted)}.card__body{padding:16px}.card__body--compact{padding:8px 16px}.card__body--scroll{max-height:300px;overflow-y:auto}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.metric{padding:12px 14px;background:var(--color-bg);border-radius:8px;text-align:center}.metric__value{font-size:20px;font-weight:700;font-family:var(--font-mono);color:var(--color-text)}.metric__label{font-size:11px;color:var(--color-text-muted);margin-top:2px}.btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border:1px solid var(--color-border);border-radius:6px;background:var(--color-surface);color:var(--color-text);font-size:13px;font-family:var(--font-sans);cursor:pointer;transition:all .15s;white-space:nowrap}.btn:hover{background:var(--color-bg);border-color:#cbd5e1}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--primary{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}.btn--primary:hover{background:var(--color-accent-dark)}.btn--danger{color:var(--color-error);border-color:#fca5a5}.btn--danger:hover{background:var(--color-error-light)}.btn--success{color:#16a34a;border-color:#86efac}.btn--success:hover{background:var(--color-success-light)}.btn--warning{color:#d97706;border-color:#fcd34d}.btn--warning:hover{background:var(--color-warning-light)}.btn--small{padding:3px 10px;font-size:12px}.btn-group{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.code-block{background:#1e293b;color:#e2e8f0;padding:12px 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8px;border-radius:10px;font-size:11px;font-weight:500}.tag--active{background:var(--color-success-light);color:#16a34a}.tag--idle{background:var(--color-bg);color:var(--color-text-muted)}.tag--loading{background:var(--color-warning-light);color:#d97706}.tag--error{background:var(--color-error-light);color:var(--color-error)}.tag--info{background:var(--color-info-light);color:#1e40af}.data-row{display:flex;justify-content:space-between;align-items:center;padding:6px 10px;margin-bottom:2px;border-radius:4px;font-size:12px;background:var(--color-bg)}.data-row__label{font-weight:500}.tree-node__row{display:flex;align-items:center;gap:6px;padding:2px 10px;border-bottom:1px solid 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20px;text-align:center}.placeholder__icon{font-size:48px;margin-bottom:16px;opacity:.3}.placeholder__title{font-size:16px;font-weight:600;color:var(--color-text-secondary);margin-bottom:4px}.placeholder__desc{font-size:13px;color:var(--color-text-muted)}.validator-workspace{display:flex;flex-direction:column;height:calc(100vh - var(--header-height) - var(--statusbar-height));overflow:hidden}.validator-workspace__header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px 12px;border-bottom:1px solid var(--color-border);flex-shrink:0}.validator-workspace__title-row{display:flex;flex-direction:column}.validator-workspace__title{font-size:18px;font-weight:700;letter-spacing:-.02em;margin-bottom:2px}.validator-workspace__desc{font-size:12px;color:var(--color-text-secondary)}.validator-workspace__body{display:flex;flex-direction:column;flex:1;min-height:0}.validator-workspace__layer{display:flex;min-height:0}.validator-workspace__layer--schema{flex:1;border-bottom:2px solid var(--color-border)}.validator-workspace__layer--validation{flex:1}.validator-workspace__resource-list{width:200px;flex-shrink:0;border-right:1px solid var(--color-border);overflow:hidden}.validator-workspace__schema{flex:1;min-width:0;border-right:1px solid var(--color-border);overflow:hidden}.validator-workspace__detail{width:280px;flex-shrink:0;overflow-y:auto;border-left:none}.validator-workspace__editor{flex:1;min-width:0;border-right:1px solid var(--color-border);overflow:hidden}.validator-workspace__result{width:360px;flex-shrink:0;overflow:hidden}.package-selector{display:flex;align-items:center;gap:8px}.package-selector__label{font-size:12px;font-weight:500;color:var(--color-text-secondary);white-space:nowrap}.package-selector__select{padding:4px 10px;border:1px solid var(--color-border);border-radius:6px;font-size:12px;font-family:var(--font-sans);background:var(--color-surface);color:var(--color-text);cursor:pointer}.package-selector__select:focus{outline:none;border-color:var(--color-accent)}.resource-list{display:flex;flex-direction:column;height:100%}.resource-list__header{display:flex;align-items:center;justify-content:space-between;padding:10px 12px 6px}.resource-list__title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted)}.resource-list__count{font-size:10px;color:var(--color-text-muted);background:var(--color-bg);padding:1px 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12px;text-align:center;font-size:12px;color:var(--color-text-muted)}.schema-viewer{display:flex;flex-direction:column;height:100%}.schema-viewer--empty{justify-content:center}.schema-viewer__tree-panel{display:flex;flex-direction:column;flex:1;min-height:0}.schema-viewer__tree-header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px 6px}.schema-viewer__tree-title{font-size:13px;font-weight:700;color:var(--color-text)}.schema-viewer__tree-count{font-size:10px;color:var(--color-text-muted);background:var(--color-bg);padding:1px 6px;border-radius:8px}.schema-viewer__tree-body{flex:1;overflow-y:auto;padding:0 4px 8px}.schema-viewer__detail-panel{border-top:1px solid var(--color-border);max-height:200px;overflow-y:auto}.schema-tree-node__row{display:flex;align-items:center;gap:4px;padding:3px 8px;border-radius:4px;font-size:12px;font-family:var(--font-mono);cursor:pointer;transition:background 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6px;border-radius:4px;font-size:11px;font-family:var(--font-mono);background:var(--color-accent-light);color:var(--color-accent-dark)}.element-detail__type-badge--backbone{background:var(--color-bg);color:var(--color-text-secondary)}.element-detail__cardinality{font-family:var(--font-mono);font-size:11px}.element-detail__cardinality--required{color:#dc2626;font-weight:600}.element-detail__required-badge{font-size:10px;font-weight:500;color:#dc2626;background:var(--color-error-light);padding:1px 6px;border-radius:4px}.element-detail__binding-badge{display:inline-block;padding:1px 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