:root{--neon-purple:#b44dff;--neon-cyan:#00f0ff;--bg-dark:#0a0a0f;--bg-card:#12121a;--text-primary:#e0e0f0;--text-secondary:#8888aa;--glass-bg:rgba(255,255,255,.04);--glass-border:rgba(255,255,255,.08)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Inter','SF Pro Display','Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg-dark);color:var(--text-primary);min-height:100vh;overflow-x:hidden}
a{color:inherit;text-decoration:none}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}

.back-link{position:fixed;bottom:20px;right:20px;z-index:99;padding:8px 16px;background:rgba(255,255,255,.04);border:1px solid var(--glass-border);border-radius:10px;color:var(--text-secondary);font-size:12px;font-family:inherit;cursor:pointer;transition:all .3s;backdrop-filter:blur(10px);text-decoration:none}
.back-link:hover{background:rgba(180,77,255,.1);border-color:rgba(180,77,255,.25);color:var(--neon-cyan);transform:translateY(-2px)}
.header{background:rgba(10,10,15,.7);backdrop-filter:blur(20px) saturate(1.4);-webkit-backdrop-filter:blur(20px) saturate(1.4);border-bottom:1px solid var(--glass-border);color:#fff;padding:10px 20px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100;opacity:.8}
.header-left{display:flex;align-items:center;gap:12px}
.header-title{font-size:20px;font-weight:700;background:linear-gradient(135deg,var(--neon-purple),var(--neon-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.header-subtitle{font-size:13px;opacity:.6;color:var(--text-secondary)}
.header-right{display:flex;gap:8px}

.btn{padding:7px 16px;border:none;border-radius:8px;cursor:pointer;font-size:13px;font-family:inherit;transition:all .2s;white-space:nowrap;font-weight:500}
.btn-primary{background:linear-gradient(135deg,var(--neon-purple),#8833cc);color:#fff}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 20px rgba(180,77,255,.3)}
.btn-secondary{background:rgba(255,255,255,.06);border:1px solid var(--glass-border);color:var(--text-secondary)}
.btn-secondary:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(180,77,255,.3)}
.btn-danger{background:rgba(255,50,50,.15);border:1px solid rgba(255,50,50,.2);color:#ff6b6b}
.btn-danger:hover{background:rgba(255,50,50,.25)}
.btn-sm{padding:5px 12px;font-size:12px}

.board{display:flex;gap:12px;padding:20px;align-items:flex-start;min-height:calc(100vh - 60px);overflow-x:auto;overflow-y:hidden;white-space:nowrap;padding-bottom:40px;width:100%;opacity:.8}
.board::-webkit-scrollbar{height:8px}
.board::-webkit-scrollbar-track{background:transparent}
.board::-webkit-scrollbar-thumb{background:rgba(180,77,255,.2);border-radius:4px}
.board::-webkit-scrollbar-thumb:hover{background:rgba(180,77,255,.35)}

.list{background:rgba(255,255,255,.03);border:1px solid var(--glass-border);border-radius:12px;width:280px;min-width:280px;display:inline-flex;flex-direction:column;max-height:calc(100vh - 80px);position:relative;vertical-align:top;white-space:normal;backdrop-filter:blur(10px)}
.list-header{padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.list-title{font-size:14px;font-weight:600;color:var(--text-primary);flex:1;border:none;background:transparent;padding:2px 4px;border-radius:4px;outline:none;cursor:pointer;font-family:inherit;min-width:0}
.list-title:hover{background:rgba(255,255,255,.05)}
.list-title:focus{background:rgba(180,77,255,.1);box-shadow:0 0 0 2px rgba(180,77,255,.3);cursor:text;color:#fff}
.list-card-count{font-size:12px;color:var(--text-secondary);background:rgba(255,255,255,.06);padding:1px 8px;border-radius:20px;flex-shrink:0}
.list-actions{display:flex;gap:2px;align-items:center;flex-shrink:0}
.list-btn-add{width:28px;height:28px;border:none;border-radius:6px;background:transparent;cursor:pointer;font-size:20px;font-weight:bold;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;transition:all .15s;line-height:1}
.list-btn-add:hover{background:rgba(180,77,255,.15);color:var(--neon-purple)}
.list-btn-collapse{width:24px;height:24px;border:none;border-radius:4px;background:transparent;cursor:pointer;font-size:10px;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;transition:all .15s;flex-shrink:0;padding:0}
.list-btn-collapse:hover{background:rgba(180,77,255,.15);color:var(--neon-cyan)}
.list.collapsed .cards-container{display:none}
.list.collapsed .list-add-bottom{display:none}
.list.collapsed .list{width:280px;min-width:280px}
.list.collapsed .list-header{opacity:.7}

.list-more-wrap{position:relative}
.list-btn-more{width:28px;height:28px;border:none;border-radius:6px;background:transparent;cursor:pointer;font-size:16px;font-weight:bold;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;transition:all .15s;letter-spacing:1px}
.list-btn-more:hover{background:rgba(180,77,255,.15);color:var(--neon-purple)}
.list-more-menu{position:absolute;top:100%;right:0;background:var(--bg-card);border:1px solid var(--glass-border);border-radius:10px;box-shadow:0 8px 32px rgba(0,0,0,.4);min-width:160px;padding:4px 0;display:none;z-index:50;backdrop-filter:blur(20px)}
.list-more-menu.show{display:block}
.list-menu-item{padding:8px 14px;font-size:13px;color:var(--text-primary);cursor:pointer;display:flex;align-items:center;gap:8px;transition:background .1s}
.list-menu-item:hover{background:rgba(255,255,255,.05)}
.list-menu-item.menu-delete{color:#ff6b6b}
.list-menu-item.menu-delete:hover{background:rgba(255,50,50,.1)}

.cards-container{padding:0 8px 8px;flex:1;overflow-y:auto;min-height:8px}
.cards-container.drag-over{background:rgba(180,77,255,.06);border-radius:8px}

.card{background:rgba(255,255,255,.04);border:1px solid var(--glass-border);border-radius:10px;padding:10px 12px;margin-bottom:8px;cursor:pointer;transition:all .2s;position:relative}
.card:hover{border-color:rgba(180,77,255,.25);background:rgba(255,255,255,.06);transform:translateY(-1px)}
.card.dragging{opacity:.4;transform:rotate(2deg);box-shadow:0 8px 32px rgba(0,0,0,.3)}
.card-del-btn{position:absolute;top:4px;right:4px;width:24px;height:24px;border:none;border-radius:6px;background:rgba(255,50,50,.2);color:#ff6b6b;font-size:16px;line-height:1;cursor:pointer;display:none;align-items:center;justify-content:center;z-index:5;transition:all .15s;padding:0}
.card-del-btn:hover{background:rgba(255,50,50,.4);color:#fff}
.card:hover .card-del-btn{display:flex}
.card.drag-over-me{opacity:.7}
.card.drag-before{border-top:3px solid var(--neon-purple);border-bottom:none;border-radius:8px 8px 0 0}
.card.drag-after{border-bottom:3px solid var(--neon-purple);border-top:none;border-radius:0 0 8px 8px}

.card-labels{display:flex;gap:4px;margin-bottom:6px;flex-wrap:wrap}
.card-label{font-size:11px;padding:2px 8px;border-radius:4px;color:#fff;font-weight:500;letter-spacing:.3px}
.card-title{font-size:14px;line-height:1.4;color:var(--text-primary);word-break:break-word}
.card-footer{display:flex;align-items:center;gap:8px;margin-top:8px;font-size:12px;color:var(--text-secondary)}

.add-list-placeholder{background:rgba(255,255,255,.03);border:1px dashed var(--glass-border);border-radius:12px;width:280px;min-width:280px;padding:12px 16px;cursor:pointer;color:var(--text-secondary);font-size:14px;transition:all .2s;display:inline-flex;align-items:center;gap:6px;vertical-align:top;white-space:normal}
.add-list-placeholder:hover{background:rgba(180,77,255,.06);border-color:rgba(180,77,255,.25);color:var(--neon-purple)}

.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;z-index:200;backdrop-filter:blur(4px)}
.modal-overlay.active{display:flex}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}

.modal{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:16px;width:520px;max-width:92vw;max-height:85vh;display:flex;flex-direction:column;animation:slideUp .25s;box-shadow:0 24px 80px rgba(0,0,0,.5);backdrop-filter:blur(20px)}
.modal-sm{width:380px}
.modal-lg{width:600px}
.modal-header{padding:18px 20px 12px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--glass-border)}
.modal-header h2{font-size:18px;font-weight:600;color:var(--text-primary)}
.modal-close{background:none;border:none;font-size:24px;cursor:pointer;color:var(--text-secondary);padding:4px 8px;border-radius:6px;line-height:1;transition:all .15s}
.modal-close:hover{background:rgba(255,255,255,.08);color:#fff}
.modal-body{padding:16px 20px;overflow-y:auto;flex:1}
.modal-footer{padding:12px 20px 16px;display:flex;gap:8px;justify-content:flex-end;border-top:1px solid var(--glass-border)}
.modal-footer .btn-danger{margin-right:auto}
.modal-footer .btn-primary{background:linear-gradient(135deg,var(--neon-purple),#8833cc);color:#fff}
.modal-footer .btn-primary:hover{box-shadow:0 4px 20px rgba(180,77,255,.3)}
.modal-footer .btn-secondary{background:rgba(255,255,255,.06);border:1px solid var(--glass-border);color:var(--text-secondary)}
.modal-footer .btn-secondary:hover{background:rgba(255,255,255,.1);color:#fff}

.field{margin-bottom:14px}
.field label{display:block;font-size:12px;font-weight:600;color:var(--text-secondary);margin-bottom:4px;text-transform:uppercase;letter-spacing:.5px}
.field input,.field textarea,.field select{width:100%;padding:8px 10px;border:1px solid var(--glass-border);border-radius:8px;font-size:14px;font-family:inherit;outline:none;transition:all .2s;background:rgba(255,255,255,.04);color:var(--text-primary)}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--neon-purple);box-shadow:0 0 0 3px rgba(180,77,255,.1);background:rgba(255,255,255,.06)}
.field textarea{resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field-row .field{margin-bottom:0}

.detail-title-input{width:100%;font-size:16px;font-weight:600;padding:8px 10px;border:1px solid var(--glass-border);border-radius:8px;background:rgba(255,255,255,.04);color:var(--text-primary);outline:none;transition:all .2s;box-sizing:border-box}
.detail-title-input:focus{border-color:var(--neon-purple);box-shadow:0 0 0 3px rgba(180,77,255,.1)}
.detail-section{margin-bottom:20px}
.detail-label{font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
.detail-labels{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:8px}
.detail-label-badge{font-size:12px;padding:3px 10px;border-radius:4px;color:#fff;font-weight:500;display:inline-flex;align-items:center;gap:6px}
.detail-label-badge .remove-label{cursor:pointer;font-size:14px;opacity:.7;transition:opacity .15s}
.detail-label-badge .remove-label:hover{opacity:1}
.detail-add-label select{width:100%;padding:6px 10px;border:1px solid var(--glass-border);border-radius:8px;font-size:13px;font-family:inherit;outline:none;background:rgba(255,255,255,.04);color:var(--text-primary)}
#detailDesc{width:100%;padding:8px 10px;border:1px solid var(--glass-border);border-radius:8px;font-size:14px;font-family:inherit;outline:none;resize:vertical;background:rgba(255,255,255,.04);color:var(--text-primary);min-height:60px}
#detailDesc:focus{border-color:var(--neon-purple);box-shadow:0 0 0 3px rgba(180,77,255,.1)}

.detail-comments{margin-bottom:12px}
.comment{background:rgba(255,255,255,.03);border:1px solid var(--glass-border);border-radius:10px;padding:10px 12px;margin-bottom:8px}
.comment-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}
.comment-author{font-size:12px;font-weight:600;color:var(--text-primary)}
.comment-time{font-size:11px;color:var(--text-secondary)}
.comment-text{font-size:13px;line-height:1.4;color:var(--text-primary);white-space:pre-wrap;word-break:break-word}
.no-comments{font-size:13px;color:var(--text-secondary);font-style:italic}

.detail-add-comment{display:flex;gap:8px;align-items:flex-start}
.detail-add-comment textarea{flex:1;padding:8px 10px;border:1px solid var(--glass-border);border-radius:8px;font-size:13px;font-family:inherit;outline:none;resize:none;background:rgba(255,255,255,.04);color:var(--text-primary)}
.detail-add-comment textarea:focus{border-color:var(--neon-purple);box-shadow:0 0 0 3px rgba(180,77,255,.1)}
.detail-add-comment .btn{margin-top:2px}

.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--bg-card);border:1px solid var(--glass-border);color:var(--text-primary);padding:10px 20px;border-radius:10px;font-size:13px;z-index:999;opacity:0;transition:all .3s;pointer-events:none;box-shadow:0 8px 32px rgba(0,0,0,.4);display:flex;align-items:center;gap:14px;backdrop-filter:blur(20px)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:all}
.toast-undo-btn{background:rgba(180,77,255,.15);border:1px solid rgba(180,77,255,.25);border-radius:8px;color:var(--neon-purple);padding:4px 14px;cursor:pointer;font-size:12px;font-weight:600;font-family:inherit;transition:all .15s;white-space:nowrap}
.toast-undo-btn:hover{background:rgba(180,77,255,.25)}

.loading{display:flex;align-items:center;justify-content:center;min-height:200px;color:var(--text-secondary);font-size:16px}
.empty-list{text-align:center;color:var(--text-secondary);font-size:13px;padding:16px 0}
.list-add-bottom{padding:8px 10px;margin-top:2px;border-radius:8px;color:var(--text-secondary);font-size:13px;cursor:pointer;transition:all .15s;user-select:none}
.list-add-bottom:hover{background:rgba(180,77,255,.1);color:var(--neon-purple)}

@media(max-width:1024px){.board{padding:14px;gap:10px}.list{width:260px;min-width:260px}}

@media(max-width:640px){
body{overflow-x:hidden}
.header{flex-wrap:wrap;gap:8px;padding:8px 12px}
.header-left{width:100%;justify-content:center}
.header-title{font-size:17px}
.header-subtitle{display:none}
.header-right{width:100%;justify-content:center;gap:6px}
.header-right .btn{padding:8px 14px;font-size:14px;flex:1;text-align:center;max-width:120px}
.board{padding:10px;gap:10px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;padding-bottom:60px}
.board::-webkit-scrollbar{height:4px}
.list{width:82vw;min-width:82vw;max-height:calc(100vh - 130px);scroll-snap-align:start}
.list.collapsed{width:82vw;min-width:82vw}
.card{padding:12px 14px;min-height:44px}
.card-title{font-size:15px}
.card-del-btn{display:flex!important;width:32px;height:32px;font-size:20px;top:2px;right:2px}
.card-labels{margin-bottom:8px}
.card-label{font-size:12px;padding:3px 10px}
.card-footer{margin-top:10px}
.card-footer-icon{font-size:13px}
.list-header{padding:10px}
.list-title{font-size:15px}
.list-btn-add{width:36px;height:36px;font-size:22px}
.list-btn-more{width:36px;height:36px;font-size:18px}
.list-btn-collapse{width:30px;height:30px;font-size:12px}
.list-card-count{font-size:13px;padding:2px 10px}
.list-add-bottom{padding:12px 10px;font-size:14px}
.add-list-placeholder{width:82vw;min-width:82vw;padding:14px 16px;font-size:15px;scroll-snap-align:start}
.modal-overlay{align-items:flex-end}
.modal-overlay.active .modal{animation:slideUpMobile .25s}
@keyframes slideUpMobile{from{transform:translateY(100%)}to{transform:translateY(0)}}
.modal{width:100vw;max-width:100vw;max-height:90vh;border-radius:16px 16px 0 0;margin:0}
.modal-sm,.modal-lg{width:100vw}
.modal-header{padding:16px 16px 12px}
.modal-header h2{font-size:17px}
.modal-body{padding:12px 16px}
.modal-footer{padding:12px 16px 20px}
.modal-footer .btn{padding:10px 20px;font-size:15px;flex:1;text-align:center}
.modal-footer .btn-danger{margin-right:0}
.modal-close{font-size:28px;padding:4px 12px}
.field{margin-bottom:16px}
.field label{font-size:13px}
.field input,.field textarea,.field select{padding:10px 12px;font-size:16px}
.field-row{gap:10px}
.detail-label{font-size:13px}
.detail-section{margin-bottom:18px}
#detailDesc{padding:10px 12px;font-size:15px;min-height:80px}
.detail-label-badge{font-size:13px;padding:4px 12px}
.detail-add-label select{padding:10px 12px;font-size:15px}
.comment{padding:12px}
.comment-author{font-size:13px}
.comment-text{font-size:14px}
.detail-add-comment textarea{font-size:15px;padding:10px 12px}
.detail-add-comment .btn{padding:8px 16px;font-size:14px}
.no-comments{font-size:14px}
.toast{bottom:16px;left:16px;right:16px;transform:translateY(20px);padding:12px 16px;font-size:14px;border-radius:10px;gap:12px;max-width:none}
.toast.show{transform:translateY(0)}
.toast-undo-btn{padding:6px 16px;font-size:13px;white-space:nowrap}
}
@media(max-width:380px){.list{width:88vw;min-width:88vw}.header-right .btn{max-width:100px;padding:8px 10px;font-size:13px}.header-title{font-size:15px}}