*,:before,:after{box-sizing:border-box}:root{--bg:#f4f5f7;--surface:#fff;--text:#172b4d;--text-muted:#5e6c84;--border:#dfe1e6;--primary:#0079bf;--primary-hover:#026aa7;--danger:#eb5a46;--shadow:0 1px 3px #091e4226;--shadow-lg:0 8px 24px #091e4226;--radius:8px;--radius-sm:4px;color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;line-height:1.5}body{min-height:100vh;margin:0}button,input,textarea{font:inherit}a{color:var(--primary)}.btn{border-radius:var(--radius-sm);cursor:pointer;border:none;justify-content:center;align-items:center;gap:.4rem;padding:.5rem 1rem;font-weight:500;transition:background .15s;display:inline-flex}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-ghost{color:var(--text);background:0 0}.btn-ghost:hover:not(:disabled){background:#091e4214}.btn-danger{background:var(--danger);color:#fff}.btn-sm{padding:.25rem .5rem;font-size:.875rem}.icon-btn{justify-content:center;align-items:center;display:inline-flex}.btn svg,.add-card-btn svg,.add-list-btn svg,.section-header .btn svg,.header-left .btn svg{flex-shrink:0}.add-card-btn,.add-list-btn{align-items:center;gap:.35rem;display:flex}.btn-google{border:1px solid var(--border);width:100%;color:var(--text);background:#fff}.link-btn{color:var(--primary);cursor:pointer;background:0 0;border:none;padding:0;text-decoration:underline}.auth-page{background:linear-gradient(135deg,#0079bf 0%,#5067c5 100%);justify-content:center;align-items:center;min-height:100vh;padding:1rem;display:flex}.auth-card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:400px;padding:2rem}.auth-card h1{margin:0;font-size:2rem}.auth-brand{flex-direction:column;align-items:center;gap:.75rem;margin-bottom:.25rem;display:flex}.auth-brand h1{margin:0}.app-logo{object-fit:contain;border-radius:18%;display:block}.header-logo{border-radius:6px}.auth-subtitle{color:var(--text-muted);margin:0 0 .75rem}.auth-note{color:var(--text-muted);margin:0 0 1.5rem;font-size:.8rem;line-height:1.4}.auth-card form label{margin-bottom:1rem;font-size:.875rem;font-weight:500;display:block}.auth-card input[type=email],.auth-card input[type=password]{border:2px solid var(--border);border-radius:var(--radius-sm);width:100%;margin-top:.35rem;padding:.6rem .75rem;display:block}.auth-card input:focus{border-color:var(--primary);outline:none}.auth-card .btn-primary{width:100%;margin-top:.5rem}.auth-divider{text-align:center;color:var(--text-muted);margin:1.25rem 0;font-size:.875rem}.auth-toggle{text-align:center;color:var(--text-muted);margin:1.25rem 0 0;font-size:.875rem}.error{color:var(--danger);margin:0 0 .5rem;font-size:.875rem}.app-header{color:#fff;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0000003d;justify-content:space-between;align-items:center;padding:.5rem 1rem;display:flex}.header-left,.header-right{align-items:center;gap:.75rem;display:flex}.header-left .header-logo{flex-shrink:0}.header-title{margin:0;font-size:1.125rem;font-weight:600}.app-header .btn-ghost{color:#fff}.app-header .btn-ghost:hover{background:#fff3}.user-email{opacity:.85;font-size:.8rem}.account-email{color:var(--text);word-break:break-word;margin:0 0 .75rem;font-size:.9rem}.public-badge{opacity:.9;font-size:.8rem}.project-list-page{background:var(--bg);min-height:100vh}.project-list-page .app-header{background:var(--primary)}.project-list-main{max-width:900px;margin:0 auto;padding:2rem 1rem}.account-notice{color:var(--text-muted);margin:0 0 1.25rem;font-size:.875rem}.boards-error{margin-bottom:1rem}.empty-state-panel{margin-top:1rem}.empty-state-hint{color:var(--text-muted);max-width:560px;margin:.5rem auto 1.25rem;font-size:.875rem;line-height:1.5}.board-link-form{max-width:420px;margin:0 auto}.board-link-form label{margin-bottom:.5rem;font-size:.875rem;font-weight:500;display:block}.board-link-form input{border:2px solid var(--border);border-radius:var(--radius-sm);width:100%;margin-bottom:.5rem;padding:.6rem .75rem}.new-board-form{gap:.75rem;margin-bottom:2rem;display:flex}.new-board-form input{border:2px solid var(--border);border-radius:var(--radius-sm);flex:1;padding:.6rem .75rem}.board-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;display:grid}.board-tile{border-radius:var(--radius);cursor:pointer;text-align:left;color:#fff;height:96px;box-shadow:var(--shadow);background-position:50%;background-size:cover;border:none;padding:.75rem;transition:transform .15s,box-shadow .15s;position:relative}.board-tile:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.board-tile-title{font-size:1rem;font-weight:600;display:block}.board-tile-meta{opacity:.85;font-size:.75rem}.empty-state,.empty-hint{color:var(--text-muted);text-align:center}.loading-screen,.error-page{flex-direction:column;justify-content:center;align-items:center;gap:1rem;min-height:100vh;display:flex}.board-page{background-position:50%;background-size:cover;background-attachment:scroll;flex-direction:column;height:100dvh;display:flex;overflow:hidden}.board-lists{flex:1;align-items:flex-start;gap:.75rem;min-height:0;padding:.75rem 1rem 1.5rem;display:flex;overflow:auto hidden}.list-column{border-radius:var(--radius);isolation:isolate;background:#ebecf0;flex-direction:column;flex:0 0 272px;max-height:100%;padding:.5rem;transition:background-color .12s;display:flex}.list-column-drop-target{background:#dfe3ea}.list-column-cols-2{flex:0 0 504px}.list-column-cols-3{flex:0 0 704px}.list-column-cols-4{flex:0 0 872px}.list-header{justify-content:space-between;align-items:center;gap:.25rem;margin-bottom:.5rem;padding:.25rem .5rem;display:flex}.list-header h3{cursor:grab;flex:1;min-width:0;margin:0;font-size:.875rem;font-weight:600}.list-menu{flex-shrink:0;position:relative}.list-menu-trigger{color:var(--text-muted)}.list-menu-popup{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);min-width:180px;box-shadow:var(--shadow-lg);z-index:50;padding:.35rem 0;position:absolute;top:calc(100% + 4px);right:0}.list-menu-item-submenu{position:relative}.list-menu-item-btn{width:100%;font:inherit;text-align:left;cursor:pointer;color:var(--text);background:0 0;border:none;align-items:center;gap:.5rem;padding:.45rem .75rem;font-size:.875rem;display:flex}.list-menu-item-btn:hover,.list-menu-item-btn.selected{background:var(--bg)}.list-menu-item-meta{color:var(--text-muted);margin-left:auto;font-size:.8rem}.list-menu-submenu{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);min-width:120px;box-shadow:var(--shadow-lg);z-index:51;padding:.35rem 0;position:absolute;top:0;left:calc(100% - 2px)}.list-menu-check{flex-shrink:0;justify-content:center;width:1rem;display:inline-flex}.list-menu-divider{background:var(--border);height:1px;margin:.35rem 0}.list-menu-item-danger{color:var(--danger)}.list-menu-item-danger:hover{background:#b4373014}.list-cards{flex-direction:column;flex:1;gap:.5rem;min-height:4px;display:flex;overflow-y:auto}.list-cards-cols-2,.list-cards-cols-3,.list-cards-cols-4{gap:.5rem;display:grid}.list-cards-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.list-cards-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.list-cards-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.sortable-card-shell{backface-visibility:hidden}.card-item{background:var(--surface);border-radius:var(--radius-sm);box-shadow:var(--shadow);cursor:pointer;isolation:isolate;backface-visibility:hidden;transition:background .15s;overflow:hidden}.card-item:hover{background:#f4f5f7}.card-item-shaded:hover{background-color:color-mix(in srgb, var(--card-accent) 22%, white)}.card-item-body{padding:.5rem .6rem}.card-title{cursor:grab;font-size:.875rem}.card-desc-preview{color:var(--text-muted);margin-top:.35rem;font-size:.8rem}.card-desc-preview p{margin:0}.expand-btn{font-size:.75rem}.card-checklist-preview{margin-top:.35rem}.checklist-toggle{color:var(--text-muted);cursor:pointer;background:0 0;border:none;align-items:center;gap:.35rem;padding:0;font-size:.75rem;display:flex}.checklist-icon,.chevron{color:var(--text-muted)}.checklist-inline{margin:.35rem 0 0;padding:0;font-size:.75rem;list-style:none}.checklist-inline li{align-items:center;gap:.35rem;padding:.15rem 0;display:flex}.checklist-inline li.checked{color:var(--text-muted);text-decoration:line-through}.check-box{border:1px solid var(--border);border-radius:2px;flex-shrink:0;justify-content:center;align-items:center;width:14px;height:14px;display:inline-flex}.card-image-preview{position:relative}.image-thumb-btn{cursor:pointer;background:0 0;border:none;width:100%;padding:0;display:block}.image-thumb-btn img{object-fit:cover;width:100%;height:120px;display:block}.image-thumb-btn.expanded img{height:auto;max-height:300px}.image-lightbox{z-index:200;background:#000c;justify-content:center;align-items:center;padding:1rem;display:flex;position:fixed;inset:0}.image-lightbox img{object-fit:contain;max-width:90vw;max-height:90vh}.card-badges{gap:.5rem;margin-top:.35rem;display:flex}.badge{color:var(--text-muted);align-items:center;gap:.2rem;font-size:.7rem;display:inline-flex}.add-card-btn,.add-list-btn{border-radius:var(--radius-sm);text-align:left;cursor:pointer;width:100%;color:var(--text-muted);background:#091e4214;border:none;padding:.5rem;font-size:.875rem}.add-card-btn,.add-card-form{margin-top:.5rem}.add-card-btn:hover,.add-list-btn:hover{color:var(--text);background:#091e4221}.add-list-btn{color:#fff;background:#ffffff3d;flex:0 0 272px;margin-top:.25rem}.add-list-btn:hover{color:#fff;background:#ffffff52}.add-list-form{background:#ebecf0;flex:0 0 272px}.add-card-form textarea,.add-list-form input{border:2px solid var(--primary);border-radius:var(--radius-sm);resize:none;width:100%;min-height:54px;padding:.5rem}.add-card-actions{gap:.5rem;margin-top:.5rem;display:flex}.drag-overlay-card{box-shadow:var(--shadow-lg);padding:.6rem;transform:rotate(3deg)}.modal-overlay{z-index:100;background:#00000080;justify-content:center;align-items:flex-start;padding:3rem 1rem;display:flex;position:fixed;inset:0;overflow-y:auto}.modal{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:560px;padding:1.25rem}.modal-header{justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1rem;display:flex}.modal-header h2{margin:0;font-size:1.25rem}.modal-close{justify-content:center;align-items:center;padding:.25rem .5rem;display:inline-flex}.card-modal-title{background:0 0;border:none;flex:1;padding:0;font-size:1.25rem;font-weight:600}.card-modal-title:focus{background:var(--bg);border-radius:var(--radius-sm);outline:none;padding:.25rem .5rem}.read-only-banner{border-radius:var(--radius-sm);background:#fff7e6;border:1px solid #ffe58f;margin-bottom:1rem;padding:.5rem .75rem;font-size:.875rem}.modal-section{margin-bottom:1.25rem}.modal-section h3{color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;margin:0 0 .5rem;font-size:.875rem}.section-header{align-items:center;gap:.5rem;margin-bottom:.75rem;display:flex}.section-header h3{flex:1;margin:0}.description-input{border:2px solid var(--border);border-radius:var(--radius-sm);resize:vertical;width:100%;min-height:80px;padding:.6rem}.description-input:focus{border-color:var(--primary);outline:none}.checklist-editor{background:var(--bg);border-radius:var(--radius-sm);margin-bottom:.75rem;padding:.75rem}.checklist-editor-header{align-items:center;gap:.5rem;margin-bottom:.5rem;display:flex}.checklist-editor-header h4{cursor:pointer;flex:1;margin:0;font-size:.9rem}.checklist-progress{color:var(--text-muted);font-size:.75rem}.checklist-items{margin:0;padding:0;list-style:none}.checklist-items li{align-items:center;gap:.5rem;padding:.35rem 0;display:flex}.checklist-items li.checked .check-item-text{color:var(--text-muted);text-decoration:line-through}.check-item-text{cursor:grab;flex:1;font-size:.875rem}.add-check-item{gap:.5rem;margin-top:.5rem;display:flex}.add-check-item input{border:2px solid var(--border);border-radius:var(--radius-sm);flex:1;padding:.4rem .5rem}.attachment-images{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:.75rem;margin-bottom:.75rem;display:grid}.attachment-image-item{border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.attachment-thumb{cursor:pointer;background:0 0;border:none;width:100%;padding:0;display:block}.attachment-thumb img{object-fit:cover;width:100%;height:100px;display:block}.attachment-meta{justify-content:space-between;align-items:center;gap:.25rem;padding:.35rem .5rem;font-size:.75rem;display:flex}.attachment-files{margin:0;padding:0;list-style:none}.attachment-files li{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:.35rem 0;display:flex}.attachment-files a{align-items:center;gap:.35rem;display:inline-flex}.image-preview-overlay img{object-fit:contain;border-radius:var(--radius);max-width:90vw;max-height:85vh}.modal-footer{border-top:1px solid var(--border);justify-content:flex-start;align-items:center;gap:.75rem;padding-top:.5rem;display:flex}.save-indicator{color:var(--text-muted);margin-left:auto;font-size:.8rem}.upload-error{margin-top:.5rem}.settings-sidebar-overlay{z-index:100;background:#0006;position:fixed;inset:0}.settings-sidebar{background:var(--surface);width:min(400px,100vw);box-shadow:var(--shadow-lg);z-index:101;flex-direction:column;animation:.2s ease-out settings-sidebar-in;display:flex;position:fixed;top:0;bottom:0;right:0}@keyframes settings-sidebar-in{0%{transform:translate(100%)}to{transform:translate(0)}}.settings-sidebar-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 1.25rem;display:flex}.settings-sidebar-header h2{margin:0;font-size:1.25rem}.settings-sidebar-content{flex:1;padding:1.25rem;overflow-y:auto}.settings-section{margin-bottom:1.5rem}.settings-section:last-child{margin-bottom:0}.settings-section h3{text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);margin:0 0 .75rem;font-size:.75rem;font-weight:600}.board-settings-section{border-top:1px solid var(--border);padding-top:1.5rem}.settings-sidebar label{margin-bottom:1rem;font-size:.875rem;font-weight:500;display:block}.settings-sidebar input[type=text],.settings-sidebar input[type=url]{border:2px solid var(--border);border-radius:var(--radius-sm);width:100%;margin-top:.35rem;padding:.5rem .75rem;display:block}.settings-sidebar fieldset{border:none;margin:0 0 1rem;padding:0}.settings-sidebar legend{margin-bottom:.5rem;font-size:.875rem;font-weight:500}.color-picker{flex-wrap:wrap;gap:.5rem;display:flex}.color-swatch{border-radius:var(--radius-sm);cursor:pointer;border:2px solid #0000;width:32px;height:32px}.color-swatch.selected{border-color:var(--text);box-shadow:0 0 0 2px white, 0 0 0 4px var(--text)}.settings-preview{border-radius:var(--radius-sm);background-position:50%;background-size:cover;height:80px;margin-bottom:1rem}.checkbox-label{cursor:pointer;align-items:center;gap:.5rem;display:flex!important}.settings-actions{justify-content:flex-end;gap:.5rem;margin-top:1rem;display:flex}.settings-sidebar-footer{border-top:1px solid var(--border);flex-shrink:0;padding:1.25rem}.settings-danger-zone p{color:var(--text-muted);margin:0 0 .75rem;font-size:.875rem}.settings-sidebar-header-main{align-items:center;gap:.5rem;min-width:0;display:flex}.settings-back-btn{flex-shrink:0}.settings-section-header{justify-content:space-between;align-items:center;gap:.75rem;margin-bottom:.75rem;display:flex}.settings-section-header h3{margin:0}.archive-empty{color:var(--text-muted);margin:0;font-size:.9rem}.archived-card-list{flex-direction:column;gap:.75rem;margin:0;padding:0;list-style:none;display:flex}.archived-card-item{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);justify-content:space-between;align-items:flex-start;gap:.75rem;padding:.75rem;display:flex}.archived-card-info{flex:1;min-width:0}.archived-card-title{word-break:break-word;font-weight:500;display:block}.archived-card-meta{color:var(--text-muted);margin-top:.25rem;font-size:.8rem;display:block}.modules-section{border-top:1px solid var(--border);padding-top:1.5rem}.module-list{flex-direction:column;gap:.75rem;margin:0;padding:0;list-style:none;display:flex}.module-item{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);justify-content:space-between;align-items:flex-start;gap:.75rem;padding:.75rem;display:flex}.module-info{flex:1;min-width:0}.module-name{font-weight:500;display:block}.module-description{color:var(--text-muted);margin-top:.25rem;font-size:.8rem;display:block}.module-actions{flex-shrink:0;align-items:center;gap:.35rem;display:flex}.module-settings-btn{color:var(--text-muted)}.module-toggle{cursor:pointer;align-items:center;display:inline-flex;position:relative}.module-toggle input{opacity:0;width:0;height:0;position:absolute}.module-toggle-track{background:var(--border);border-radius:999px;width:36px;height:20px;transition:background .15s;display:block;position:relative}.module-toggle-track:after{content:"";background:#fff;border-radius:50%;width:16px;height:16px;transition:transform .15s;position:absolute;top:2px;left:2px;box-shadow:0 1px 2px #00000026}.module-toggle input:checked+.module-toggle-track{background:var(--primary)}.module-toggle input:checked+.module-toggle-track:after{transform:translate(16px)}.module-toggle input:disabled+.module-toggle-track{opacity:.6;cursor:not-allowed}.module-settings-intro{color:var(--text-muted);margin:0 0 1rem;font-size:.9rem}.module-setting-toggle{margin-top:1rem}.card-color-palette-editor{flex-direction:column;gap:.75rem;display:flex}.module-palette-picker{gap:.65rem}.palette-swatch-wrap{position:relative}.palette-swatch{pointer-events:none;display:block}.palette-remove-btn{background:var(--surface);width:18px;height:18px;box-shadow:var(--shadow);color:var(--text-muted);cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;padding:0;display:inline-flex;position:absolute;top:-6px;right:-6px}.palette-remove-btn:disabled{opacity:.4;cursor:not-allowed}.palette-add{align-items:center;gap:.5rem;display:flex}.palette-add input[type=color]{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;background:0 0;width:36px;height:32px;padding:0}.card-color-picker{flex-wrap:wrap;gap:.5rem;display:flex}.card-color-swatch{width:28px;height:28px}.card-color-none{background:var(--surface);border:2px solid var(--border);position:relative}.card-color-none:after{content:"";background:var(--danger);height:2px;position:absolute;inset:45% -10%;transform:rotate(-45deg)}.card-tag-list{flex-wrap:wrap;gap:.3rem;margin:.35rem 0 0;padding:0;list-style:none;display:flex}.card-tag-list-compact{margin-top:.35rem}.card-tag-pill{background:color-mix(in srgb, var(--tag-color) 22%, white);max-width:100%;color:color-mix(in srgb, var(--tag-color) 75%, black);border:1px solid color-mix(in srgb, var(--tag-color) 35%, transparent);word-break:break-word;border-radius:999px;align-items:center;padding:.1rem .45rem;font-size:.7rem;font-weight:600;line-height:1.3;display:inline-flex}.card-tag-picker{flex-wrap:wrap;gap:.4rem;display:flex}.card-tag-picker-empty{color:var(--text-muted);margin:0;font-size:.875rem}.card-tag-pill-selectable{cursor:pointer;background:var(--bg);color:var(--text);border:1px solid var(--border);font:inherit;font-size:.8rem;font-weight:500}.card-tag-pill-selectable.selected{background:var(--tag-color);color:#fff;border-color:var(--tag-color)}.card-tag-pill-selectable:disabled{opacity:.6;cursor:not-allowed}.board-tags-editor{flex-direction:column;gap:.75rem;display:flex}.tag-editor-empty{color:var(--text-muted);margin:0;font-size:.875rem}.tag-editor-list{flex-direction:column;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.tag-editor-item,.tag-editor-add{align-items:center;gap:.5rem;display:flex}.tag-editor-item input[type=text],.tag-editor-add input[type=text]{border:2px solid var(--border);border-radius:var(--radius-sm);min-width:0;font:inherit;flex:1;margin:0;padding:.4rem .6rem}.tag-editor-item input[type=color],.tag-editor-add input[type=color]{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;background:0 0;flex-shrink:0;width:36px;height:32px;padding:0}.archive-drop-zone{color:#fff;border-radius:var(--radius);width:fit-content;box-shadow:var(--shadow-lg);z-index:90;pointer-events:auto;background:#b43730e6;border:2px dashed #ffc8c38c;align-items:center;gap:.5rem;margin:0 auto;padding:.85rem 1.5rem;transition:background .15s,border-color .15s,transform .15s;display:flex;position:fixed;bottom:1.5rem;left:0;right:0}.archive-drop-zone-over{background:var(--danger);box-shadow:0 0 0 2px #ffffff59, var(--shadow-lg);border-color:#fff}