*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0e0e0f;--surface:#181819;--surface-modal:#1e1e21;--surface-elevated:#2c2c30;--border:#2a2a2d;--border-modal:#3e3e43;--text:#e8e6e0;--text-secondary:#b0aea8;--muted:#6b6b72;--placeholder:#888894;--accent:#ffcb03;--green:#3ddc84;--blue:#5b9cf6;--red:#f25f5c;--yellow:#f7c948;--yellow-dark:#d4a800;--bm-bg:#fff;--bm-fg:#000;--action-sheet-bg:var(--yellow);--action-icon:#333;--danger-border:#c0392b;--danger-text:#e74c3c;--font-ui:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}html,body{background:var(--bg);height:100dvh;color:var(--text);font-family:var(--font-ui);font-size:13px;overflow:hidden}#app{flex-direction:column;height:100dvh;padding-bottom:56px;display:flex;overflow:hidden}#tab-bar{background:var(--surface);border-top:1px solid var(--border);z-index:90;grid-template-columns:1fr 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8px 36px #000000a6}#filtersort-form.open{display:flex}.fs-divider{background:var(--border-modal);flex-shrink:0;width:1px;margin:0 18px}.fs-section{flex-direction:column;gap:12px;min-width:110px;display:flex}.fs-heading{color:var(--muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:2px;font-size:10px;font-weight:600}.fs-label{cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;align-items:center;gap:10px;display:flex}.fs-label input{opacity:0;width:0;height:0;position:absolute}.fs-box{border:1.5px solid var(--muted);background:var(--bg);flex-shrink:0;width:16px;height:16px;transition:border-color .13s,background .13s;position:relative}.fs-label input[type=checkbox]~.fs-box{border-radius:3px}.fs-label input[type=radio]~.fs-box{border-radius:50%}.fs-label input:checked~.fs-box{background:var(--accent);border-color:var(--accent)}.fs-label input[type=checkbox]:checked~.fs-box:after{content:"";border:2px solid 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sheet-in{0%{opacity:0;transform:scale(.93)translateY(-4px)}to{opacity:1;transform:scale(1)translateY(0)}}.action-item{height:44px;font-family:var(--font-ui);color:var(--bm-fg);cursor:pointer;text-align:left;letter-spacing:.02em;-webkit-tap-highlight-color:transparent;white-space:nowrap;background:0 0;border:none;align-items:center;gap:10px;padding:0 14px;font-size:13px;font-weight:500;transition:background .1s;display:flex}.action-item:not(:last-child){border-bottom:1px solid #00000026}.action-item:hover{background:#0000001a}.action-item svg{width:16px;height:16px;color:var(--action-icon);flex-shrink:0}#board-modal{z-index:100;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#board-modal.open{animation:.22s modal-in;display:flex}@keyframes modal-in{0%{opacity:0}to{opacity:1}}#board-modal-backdrop{-webkit-backdrop-filter:blur(6px);background:#000000c7;position:absolute;inset:0}#board-modal-content{z-index:1;background:var(--bg);border:1px solid var(--border);border-radius:10px;flex-direction:column;align-items:center;width:min(680px,92vw);height:92vh;max-height:92vh;padding:10px 4px 8px;display:flex;position:relative;overflow:hidden}#board-modal-header{border-bottom:1px solid var(--border);flex-shrink:0;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;width:100%;margin-bottom:2px;padding:10px 14px;display:grid}#board-modal-info{min-width:0}#info-name{font-family:var(--font-ui);letter-spacing:.01em;color:var(--text);font-size:14px;font-weight:500;line-height:1.3}#info-grade{letter-spacing:.04em;vertical-align:middle;border-radius:3px;margin-left:6px;padding:1px 7px;font-size:12px;font-weight:600;display:inline-block}#info-sub,#info-type{color:var(--text-secondary);margin-top:3px;font-size:13px;line-height:1.5}#board-close-btn{color:var(--muted);cursor:pointer;font-family:var(--font-ui);-webkit-tap-highlight-color:transparent;letter-spacing:.02em;white-space:nowrap;background:0 0;border:none;flex-shrink:0;align-items:center;gap:4px;padding:4px 0;font-size:13px;font-weight:500;display:flex}.board-close-btn:hover,.board-close-btn:active{color:var(--accent)}#board-close-btn svg{flex-shrink:0;width:16px;height:16px}#main{flex-direction:column;flex:1;justify-content:center;align-items:center;width:100%;display:flex;position:relative;overflow:hidden}#board-wrap{flex-direction:column;align-items:center;max-height:100%;display:flex;position:relative}#board-canvas{display:block}#col-labels-outer{padding-left:28px}#col-labels{color:var(--muted);letter-spacing:.04em;-webkit-user-select:none;user-select:none;grid-template-columns:repeat(11,1fr);margin-bottom:3px;font-size:13px;display:grid}#col-labels span{text-align:center}#col-labels span.lit,#row-labels span.lit{color:var(--bm-bg);font-weight:600}#board-canvas-row{flex-direction:row;align-items:flex-start;display:flex}#row-labels{width:28px;color:var(--muted);letter-spacing:.02em;-webkit-user-select:none;user-select:none;flex-direction:column;flex-shrink:0;font-size:13px;display:flex;overflow:hidden}#row-labels span{flex-shrink:0;justify-content:flex-end;align-items:center;padding-right:5px;display:flex}#info-legend{text-align:right;flex-direction:column;gap:4px;font-size:11px;display:flex}.legend-item{justify-content:flex-end;align-items:center;gap:6px;display:flex}.legend-dot{border-radius:50%;flex-shrink:0;width:10px;height:10px}@media (width<=767px){#board-modal-content{border:none;border-radius:0;width:100%;max-width:100%;height:100%;max-height:100%;padding:0 4px 8px}#board-modal-content:before{content:none}#col-labels,#row-labels{font-size:13px}}#sidebar.hidden{display:none}#lists-page,#list-detail-page{background:var(--surface);scrollbar-width:thin;scrollbar-color:var(--border) transparent;flex-direction:column;flex:1;display:none;overflow:hidden auto}#lists-page.active,#list-detail-page.active{display:flex}#lists-controls{z-index:10;background:var(--surface);border-bottom:1px solid var(--border);flex-direction:column;flex-shrink:0;gap:8px;padding:10px 14px;display:flex;position:sticky;top:0}#lists-search-row{align-items:center;gap:8px;display:flex}#lists-search{background:var(--bg);border:1px solid var(--border);color:var(--text);font-family:var(--font-ui);outline:none;flex:1;padding:8px 10px;font-size:14px;transition:border-color .15s}#lists-search:focus{border-color:var(--accent)}#lists-search::placeholder{color:var(--placeholder)}#lists-filter-panel{flex-direction:column;gap:8px;display:none}#lists-filter-panel.open{display:flex}.page-header{z-index:10;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:10px;padding:14px 14px 12px;display:flex;position:sticky;top:0}.page-header-info{flex-direction:column;flex:1;gap:1px;min-width:0;display:flex}.page-title{color:var(--text);letter-spacing:.01em;flex-wrap:wrap;flex:1;align-items:center;gap:0;font-size:14px;font-weight:500;display:flex}.page-subtitle{color:var(--text-secondary);letter-spacing:.01em;margin-top:4px;font-size:13px}.back-btn{color:var(--muted);cursor:pointer;-webkit-tap-highlight-color:transparent;letter-spacing:.02em;background:0 0;border:none;align-items:center;gap:4px;padding:4px 0;font-size:13px;font-weight:400;display:flex}.back-btn:hover,.back-btn:active{color:var(--accent)}.back-btn svg{flex-shrink:0;width:18px;height:18px}.list-edit-btn{color:var(--muted);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;padding:6px;transition:color .15s,background .15s;display:flex}.list-edit-btn:hover{color:var(--text);background:#ffffff12}#edit-list-modal{z-index:400;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#edit-list-modal.open{display:flex}#edit-list-backdrop{background:#0009;position:absolute;inset:0}#edit-list-content{background:var(--surface-elevated);border:1px solid var(--border-modal);border-radius:12px;flex-direction:column;gap:14px;width:min(320px,88vw);padding:20px;display:flex;position:relative;box-shadow:0 8px 32px #00000080}.edit-list-heading{color:var(--text);text-transform:uppercase;letter-spacing:.08em;font-size:14px;font-weight:600}.edit-list-field{flex-direction:column;gap:5px;display:flex}.edit-list-label{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:11px}#edit-list-name,#edit-list-desc{border:1px solid var(--border);color:var(--text);font-family:var(--font-ui);box-sizing:border-box;background:#ffffff0d;border-radius:6px;outline:none;width:100%;padding:9px 10px;font-size:14px;transition:border-color .15s}#edit-list-name:focus,#edit-list-desc:focus{border-color:var(--accent)}#edit-list-desc{resize:none;line-height:1.5}.edit-list-btns{justify-content:flex-end;gap:8px;display:flex}.edit-list-btn{border:1px solid var(--border);color:var(--text);font-family:var(--font-ui);cursor:pointer;background:0 0;border-radius:6px;padding:7px 18px;font-size:13px;transition:background .12s}.edit-list-btn:hover{background:#ffffff0f}.edit-list-btn.save{border-color:var(--accent);color:var(--accent)}.edit-list-btn.save:hover{background:#d4c89a1a}#list-detail-title{text-transform:uppercase}.list-detail-desc-display{color:var(--text-secondary);white-space:pre-wrap;word-break:break-word;margin-top:4px;font-size:12px;font-style:italic;line-height:1.5}#confirm-remove-modal{z-index:300;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#confirm-remove-modal.open{display:flex}#confirm-remove-backdrop{background:#0000008c;position:absolute;inset:0}#confirm-remove-content{background:var(--surface);border-radius:12px;flex-direction:column;gap:14px;width:min(300px,90vw);padding:20px 20px 16px;display:flex;position:relative;box-shadow:0 8px 32px #00000080}#confirm-remove-title{color:var(--text);font-size:13px;font-weight:400;line-height:1.4}#confirm-remove-name{color:var(--accent);font-weight:400}#confirm-remove-check-row{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:8px;display:flex}#confirm-remove-check-row input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent);cursor:pointer;flex-shrink:0}#confirm-remove-check-label{color:var(--muted);font-size:12px}#confirm-remove-btns{justify-content:flex-end;gap:8px;display:flex}.confirm-remove-btn{border:1px solid var(--border);color:var(--text);font-family:var(--font-ui);cursor:pointer;background:0 0;border-radius:6px;padding:7px 16px;font-size:13px;transition:background .12s}.confirm-remove-btn:hover{background:#ffffff0f}.confirm-remove-btn.danger{border-color:var(--danger-border);color:var(--danger-text)}.confirm-remove-btn.danger:hover{background:#e74c3c1a}.list-card{border-bottom:1px solid var(--border);cursor:pointer;-webkit-tap-highlight-color:transparent;align-items:center;gap:10px;padding:10px 14px;transition:background .1s;display:flex}.list-card:hover{background:#d4c89a0d}.list-card.active{border-left:2px solid var(--accent);background:#d4c89a1a;padding-left:12px}.list-card-info{flex:1;min-width:0}.list-card-name{color:var(--text);letter-spacing:.01em;text-transform:uppercase;flex-wrap:wrap;align-items:center;gap:0;font-size:14px;font-weight:500;line-height:1.3;display:flex}.list-card-meta{color:var(--text-secondary);margin-top:4px;font-size:13px}.list-card-chevron{color:var(--muted);flex-shrink:0;margin-left:8px}.list-card-chevron svg{width:16px;height:16px;display:block}.list-problem-row{border-bottom:1px solid var(--border);cursor:pointer;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;align-items:center;gap:10px;padding:10px 14px;transition:background .1s;display:flex}.list-problem-row:hover{background:#d4c89a0d}.list-problem-row.active{border-left:2px solid var(--accent);background:#d4c89a1a;padding-left:12px}.list-problem-row.drag-over{background:#d4c89a00}.list-problem-row.dragging{opacity:1;background:#d4c89a2e;box-shadow:0 2px 10px #0006}.list-problem-row .problem-item-content{flex:1;min-width:0}.drag-handle{width:24px;height:30px;color:var(--muted);cursor:grab;opacity:1;touch-action:none;flex-shrink:0;justify-content:center;align-items:center;display:flex}.drag-handle:active{cursor:grabbing}.drag-handle svg{width:19px;height:19px}.list-remove-btn{width:30px;height:30px;color:var(--muted);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:20px;transition:color .12s,background .12s;display:flex}.list-remove-btn:hover{color:var(--red);background:#f25f5c1a}.empty-state{text-align:center;color:var(--muted);flex-direction:column;flex:1;justify-content:center;align-items:center;padding:56px 24px;display:flex}.empty-state svg{opacity:.35;width:48px;height:48px;margin-bottom:14px}.empty-state-msg{max-width:220px;font-size:13px;line-height:1.6}#list-selector-backdrop{z-index:300;background:#0000008c;display:none;position:fixed;inset:0}#list-selector-backdrop.open{display:block}#list-selector-sheet{z-index:301;background:var(--surface);border-top:1px solid var(--border);border-radius:16px 16px 0 0;flex-direction:column;max-height:74vh;padding-bottom:28px;transition:transform .28s cubic-bezier(.32,.94,.6,1);display:flex;position:fixed;bottom:0;left:0;right:0;transform:translateY(100%)}#list-selector-sheet.open{transform:translateY(0)}.sheet-pill{background:var(--border);border-radius:2px;flex-shrink:0;width:36px;height:4px;margin:10px auto 0}.list-selector-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:12px 16px 10px;display:flex}.list-selector-title{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:11px;font-weight:600}.sheet-close-btn{color:var(--muted);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;padding:0 2px;font-size:22px;line-height:1}#list-selector-items{overflow-y:auto}.list-sel-item{cursor:pointer;-webkit-tap-highlight-color:transparent;border-bottom:1px solid #2a2a2db3;align-items:center;gap:12px;padding:13px 16px;transition:background .1s;display:flex}.list-sel-item:hover{background:#d4c89a0d}.list-check{border:2px solid #ffffff59;border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;transition:all .15s;display:flex;position:relative}.list-check.on{background:var(--accent);border-color:var(--accent)}.list-check.on:after{content:"";border:2.2px solid var(--bg);border-top:none;border-left:none;width:5px;height:9px;display:block;transform:rotate(42deg)translate(-1px,-1px)}.list-sel-name{color:var(--text);flex:1;font-size:14px;font-weight:500}.list-sel-count{color:var(--muted);font-size:12px}#list-sel-create-row{border-top:1px solid #2a2a2de6;flex-shrink:0;align-items:center;gap:8px;padding:10px 14px;display:flex}#list-sel-new-name{background:var(--surface-modal);border:1px solid var(--border-modal);color:var(--text);font-family:var(--font-ui);box-sizing:border-box;border-radius:6px;outline:none;flex:1;padding:7px 10px;font-size:13px;transition:border-color .15s}#list-sel-new-name:focus{border-color:var(--accent)}#list-sel-create-confirm{background:var(--accent);color:var(--bm-fg);font-family:var(--font-ui);cursor:pointer;-webkit-tap-highlight-color:transparent;border:none;border-radius:6px;flex-shrink:0;padding:7px 14px;font-size:13px;font-weight:500;transition:opacity .12s}#list-sel-create-confirm:active{opacity:.75}@keyframes _spin{to{transform:rotate(360deg)}}#loading,.list-loading{background:var(--bg);z-index:9;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}#loading{z-index:10;transition:opacity .4s}#loading.done{opacity:0;pointer-events:none}.loading-inner{font-family:var(--font-ui);letter-spacing:.1em;color:var(--muted);text-transform:uppercase;flex-direction:column;align-items:center;gap:16px;font-size:14px;display:flex}.loading-inner svg{width:28px;height:28px;animation:.85s linear infinite _spin}.spinner-track{stroke:var(--border)}.spinner-head{stroke:var(--accent)}.bm-badge{background:var(--bm-bg);height:18px;color:var(--bm-fg);vertical-align:middle;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;margin-left:4px;padding:0 6px;font-size:10px;font-weight:700;line-height:1;display:inline-flex}.grade-plus{vertical-align:2.5px;font-size:1em;line-height:0;font-weight:inherit}#logo-emoji,#lists-logo-emoji,#profile-logo-emoji{object-fit:contain;opacity:.9;cursor:pointer;background:0 0;flex-shrink:0;width:32px;height:32px}#lists-logo-placeholder{flex-shrink:0;width:32px;height:32px}#lists-filter-panel #grade-filter-row{align-items:center;gap:8px;padding:8px 4px;display:flex}#lists-grade-dual-range{flex:1;align-items:center;height:28px;display:flex;position:relative}#lgdr-track{background:var(--border);pointer-events:none;border-radius:3px;height:6px;position:absolute;left:0;right:0}#lgdr-fill{pointer-events:none;border-radius:3px;height:6px;position:absolute}#lists-filter-close-pill{cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:6px;justify-content:center;align-items:center;width:100%;height:28px;margin:8px 0 4px;display:flex}#username-modal-content .edit-list-heading,#username-modal-heading{justify-content:space-between;align-items:center;display:flex}#username-modal-close{cursor:pointer;color:var(--muted);background:0 0;border:none;padding:0 2px;font-size:20px;line-height:1}.username-input-wrap{position:relative}#username-modal .edit-list-btns,.username-confirm-btns{margin-top:4px}#tab-bar{grid-template-columns:1fr 1fr 1fr}.info-modal-header{margin-bottom:16px}.info-modal-title{color:var(--text);letter-spacing:.01em;font-size:14px;font-weight:500}#auth-page{z-index:450;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#auth-page.open{display:flex}#auth-page-backdrop{background:#0009;position:absolute;inset:0}#auth-page-content{background:var(--surface-modal);border:1px solid var(--border-modal);border-radius:12px;flex-direction:column;gap:0;width:min(340px,90vw);padding:22px 20px 20px;display:flex;position:relative;box-shadow:0 12px 40px #0009}.auth-step{flex-direction:column;gap:18px;width:100%;max-width:380px;display:flex}.auth-blurb{color:var(--text-secondary);letter-spacing:.01em;font-size:13px;font-weight:400}.auth-field{flex-direction:column;gap:6px;display:flex}.auth-label{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:11px}#auth-email-input{border:1px solid var(--border);color:var(--text);font-family:var(--font-ui);background:#ffffff0d;border-radius:6px;outline:none;width:100%;padding:11px 12px;font-size:15px;transition:border-color .15s}#auth-email-input:focus{border-color:var(--accent)}#auth-email-input::placeholder{color:var(--muted)}.auth-submit-btn{background:var(--accent);color:var(--bg);font-family:var(--font-ui);cursor:pointer;letter-spacing:.04em;-webkit-tap-highlight-color:transparent;border:none;border-radius:7px;padding:12px 20px;font-size:14px;font-weight:600;transition:opacity .15s,transform .1s}.auth-submit-btn:hover{opacity:.88}.auth-submit-btn:active{transform:scale(.97)}.auth-submit-btn:disabled{opacity:.35;cursor:not-allowed;transform:none}.auth-error{color:var(--red);min-height:16px;font-size:12px;line-height:1.4}.auth-sent-icon{width:48px;height:48px;color:var(--accent)}.auth-sent-icon svg{width:100%;height:100%}.auth-sent-msg{color:var(--text);font-size:14px;line-height:1.6}.auth-sent-msg strong{color:var(--accent);font-weight:600}.auth-resend-btn{border:1px solid var(--border);color:var(--muted);font-family:var(--font-ui);cursor:pointer;background:0 0;border-radius:6px;width:fit-content;padding:8px 16px;font-size:13px;transition:border-color .15s,color .15s}.auth-resend-btn:hover{border-color:var(--accent);color:var(--accent)}#profile-page{z-index:450;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#profile-page.open{display:flex}#profile-page-backdrop{background:#0009;position:absolute;inset:0}#profile-page-content{background:var(--surface-elevated);border:1px solid var(--border-modal);border-radius:12px;flex-direction:column;gap:0;width:min(340px,90vw);padding:22px 20px 20px;display:flex;position:relative;box-shadow:0 12px 40px #0009}.profile-loading{color:var(--muted);font-size:13px}.profile-own-wrap,.profile-other-wrap{flex-direction:column;gap:10px;display:flex}.profile-top-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.profile-username{color:var(--text);letter-spacing:.01em;font-size:14px;font-weight:500}.profile-action-logout{color:var(--text-secondary);font-family:var(--font-ui);text-transform:uppercase;letter-spacing:.06em;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;flex-shrink:0;margin-left:auto;padding:2px 0;font-size:11px;font-weight:600;text-decoration:none;transition:color .12s}.profile-action-logout:hover{color:var(--text)}.profile-action-lists{color:var(--text-secondary);font-family:var(--font-ui);text-transform:uppercase;letter-spacing:.06em;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;flex-shrink:0;padding:2px 0;font-size:11px;font-weight:600;text-decoration:none;transition:color .12s}.profile-action-lists:hover{color:var(--text)}#username-modal{z-index:500;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#username-modal.open{display:flex}#username-modal-backdrop{background:#000000b8;position:absolute;inset:0}#username-modal-content{background:var(--surface-elevated);border:1px solid var(--border-modal);border-radius:12px;flex-direction:column;gap:14px;width:min(340px,90vw);padding:22px 20px 20px;display:flex;position:relative;box-shadow:0 12px 40px #0009}.username-modal-blurb{color:var(--muted);margin-top:-6px;font-size:12px;line-height:1.55}#username-input{border:1px solid var(--border);color:var(--text);font-family:var(--font-ui);background:#ffffff0d;border-radius:6px;outline:none;width:100%;padding:9px 36px 9px 10px;font-size:14px;transition:border-color .15s}#username-input:focus{border-color:var(--accent)}#username-input::placeholder{color:var(--muted)}#username-input.valid{border-color:var(--green)}#username-input.invalid{border-color:var(--red)}.username-status{pointer-events:none;font-size:13px;transition:opacity .15s;position:absolute;top:50%;right:10px;transform:translateY(-50%)}.username-status.available{color:var(--green)}.username-status.taken{color:var(--red)}.username-status.checking{color:var(--muted)}.username-hint{color:var(--muted);font-size:11px;line-height:1.4}#tab-profile.authed{color:var(--accent)}