:root{--bg:#f4f5f7;--panel:#fff;--ink:#172b4d;--muted:#5e6c84;--line:#dfe1e6;--accent:#3b6ea5;--accent-ink:#fff;--danger:#d9534f;--ok:#2e8b57;--list:#ebecf0;--shadow:0 1px 2px rgba(9,30,66,.2);--radius:8px}
@media (prefers-color-scheme:dark){:root{--bg:#1d2125;--panel:#282e33;--ink:#e6edf3;--muted:#9aa5b1;--line:#3a434b;--list:#101204;--shadow:0 1px 3px rgba(0,0,0,.5)}}
*{box-sizing:border-box}html,body{margin:0;height:100%}
body{font:14px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--accent)}button,input,select,textarea{font:inherit;color:inherit}
input[type=text],input[type=email],input[type=password],input[type=date],select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:6px;background:var(--panel);color:var(--ink)}
input:focus,textarea:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px}
textarea{min-height:90px;resize:vertical}
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border:1px solid var(--line);border-radius:6px;background:var(--panel);cursor:pointer;white-space:nowrap}
.btn:hover{filter:brightness(.96)}.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:transparent}.btn.danger{color:var(--danger)}.btn.small{padding:3px 8px;font-size:12px}
.btn.ghost{background:transparent;border-color:transparent}.btn:disabled{opacity:.5;cursor:default}
.muted{color:var(--muted)}.small{font-size:12px}.center{text-align:center;padding:40px}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.grow{flex:1}.right{margin-left:auto}
.err{color:var(--danger);margin:6px 0}.ok{color:var(--ok)}
#toasts{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:8px;z-index:50}
.toast{background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:6px;box-shadow:var(--shadow);max-width:360px}.toast.err{background:var(--danger);color:#fff}
/* top bar */
.top{display:flex;align-items:center;gap:10px;padding:8px 16px;background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top .brand{font-weight:700;text-decoration:none;color:var(--ink);display:flex;gap:8px;align-items:center}.top .brand i{width:22px;height:22px;border-radius:5px;background:var(--accent);display:inline-block}
.top nav a{margin-right:10px;text-decoration:none;color:var(--muted)}.top nav a.on{color:var(--ink);font-weight:600}
.top .search{width:240px}
.avatar{width:26px;height:26px;border-radius:50%;background:var(--accent);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex:none}
/* pages */
.page{max-width:1000px;margin:0 auto;padding:24px 16px}
.authbox{max-width:380px;margin:60px auto;background:var(--panel);padding:28px;border-radius:var(--radius);box-shadow:var(--shadow)}
.authbox h1{margin:0 0 16px;font-size:20px}.authbox label{display:block;margin:10px 0 4px;font-size:12px;color:var(--muted)}
.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.tile{display:block;text-decoration:none;color:#fff;padding:14px;border-radius:var(--radius);min-height:92px;box-shadow:var(--shadow);position:relative}.tile b{font-size:15px}.tile .small{opacity:.85}
.tile.new{background:var(--panel);color:var(--ink);border:2px dashed var(--line);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:none}
h2{font-size:17px;margin:20px 0 10px}
table{width:100%;border-collapse:collapse;background:var(--panel);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}th,td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:12px;color:var(--muted);font-weight:600}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:14px}.tabs a{padding:8px 12px;text-decoration:none;color:var(--muted);border-bottom:2px solid transparent}.tabs a.on{color:var(--ink);border-color:var(--accent)}
.card-panel{background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:14px}
pre.mail{white-space:pre-wrap;background:var(--bg);padding:8px;border-radius:6px;font-size:12px;max-height:200px;overflow:auto}
/* board */
.board{display:flex;flex-direction:column;height:calc(100vh - 47px)}
.board-head{display:flex;align-items:center;gap:10px;padding:8px 16px;color:#fff;flex-wrap:wrap}
.board-head h1{font-size:17px;margin:0;cursor:text}.board-head .btn{background:rgba(255,255,255,.2);border-color:transparent;color:#fff}
.board-head .facepile{display:flex}.facepile .avatar{margin-left:-6px;border:2px solid rgba(255,255,255,.7)}
.lists{display:flex;gap:10px;padding:10px 16px;overflow-x:auto;flex:1;align-items:flex-start}
.list{background:var(--list);border-radius:var(--radius);width:272px;flex:none;max-height:100%;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.list.dragover{outline:2px dashed var(--accent)}
.list-head{display:flex;align-items:center;padding:8px 8px 4px 12px;font-weight:600;cursor:grab}.list-head input{font-weight:600;padding:3px 6px}
.list-cards{padding:0 8px;overflow-y:auto;min-height:12px;display:flex;flex-direction:column;gap:6px}
.card{background:var(--panel);border-radius:6px;padding:8px 10px;box-shadow:var(--shadow);cursor:pointer;position:relative}.card:hover{filter:brightness(.98)}
.card.dragging{opacity:.4}.card.done .title{text-decoration:line-through;color:var(--muted)}
.card .labels{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:5px}.label-chip{height:8px;min-width:36px;border-radius:4px;display:inline-block}
.card .meta{display:flex;gap:8px;align-items:center;margin-top:6px;font-size:11px;color:var(--muted);flex-wrap:wrap}
.due{padding:1px 5px;border-radius:4px}.due.over{background:var(--danger);color:#fff}.due.soon{background:#f0ad4e;color:#000}.due.done{background:var(--ok);color:#fff}
.card .meta .avatar{width:20px;height:20px;font-size:9px}
.placeholder{height:40px;border-radius:6px;background:rgba(9,30,66,.12);border:1px dashed var(--accent)}
.list-foot{padding:6px 8px 8px}.list-foot textarea{min-height:56px}
.add-list{background:rgba(255,255,255,.25);border-radius:var(--radius);width:272px;flex:none;padding:8px}
.add-list button{width:100%;text-align:left;background:transparent;border:0;color:#fff;cursor:pointer;padding:6px}
.add-list input{background:var(--panel)}
.filterbar{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.filterbar .chip{padding:2px 8px;border-radius:12px;border:1px solid rgba(255,255,255,.5);cursor:pointer;font-size:12px;color:#fff}.filterbar .chip.on{background:#fff;color:var(--ink)}
/* modal */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:flex-start;justify-content:center;padding:40px 12px;overflow:auto;z-index:20}
.modal{background:var(--bg);border-radius:var(--radius);width:100%;max-width:760px;box-shadow:0 8px 30px rgba(0,0,0,.35);padding:20px 22px;position:relative}
.modal .close{position:absolute;right:10px;top:10px}
.modal h2{margin:0 0 4px;font-size:19px}.modal h2 input{font-size:19px;font-weight:600;padding:3px 6px}
.modal .cols{display:grid;grid-template-columns:1fr 180px;gap:20px}@media(max-width:640px){.modal .cols{grid-template-columns:1fr}}
.modal h3{font-size:13px;margin:16px 0 6px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.side .btn{width:100%;justify-content:flex-start;margin-bottom:6px}
.desc{white-space:pre-wrap;background:var(--panel);padding:10px;border-radius:6px;cursor:text;min-height:40px;border:1px solid transparent}.desc:hover{border-color:var(--line)}.desc .ph{color:var(--muted)}
.checklist li{list-style:none;display:flex;gap:8px;align-items:center;padding:3px 0}.checklist li.done span{text-decoration:line-through;color:var(--muted)}.checklist{padding:0;margin:0}
.progress{height:6px;background:var(--line);border-radius:3px;overflow:hidden;margin:4px 0 8px}.progress i{display:block;height:100%;background:var(--ok)}
.comment{background:var(--panel);padding:8px 10px;border-radius:6px;margin-bottom:6px}.comment .who{font-weight:600;font-size:12px}.comment .body{white-space:pre-wrap}
.pop{position:absolute;background:var(--panel);border:1px solid var(--line);border-radius:6px;box-shadow:0 4px 16px rgba(0,0,0,.25);padding:8px;z-index:30;min-width:220px}
.pop .item{display:flex;align-items:center;gap:8px;padding:5px 6px;border-radius:4px;cursor:pointer}.pop .item:hover{background:var(--bg)}.pop .item.on{font-weight:600}
.act{font-size:12px;color:var(--muted);padding:3px 0;border-bottom:1px solid var(--line)}.act b{color:var(--ink)}
.kbd{border:1px solid var(--line);border-radius:3px;padding:0 4px;font-size:11px}
.badge{display:inline-block;padding:1px 6px;border-radius:10px;font-size:11px;background:var(--line)}.badge.admin{background:var(--accent);color:#fff}.badge.warn{background:#f0ad4e;color:#000}.badge.off{background:var(--danger);color:#fff}
.mycards li{list-style:none;background:var(--panel);padding:8px 10px;border-radius:6px;margin-bottom:6px;display:flex;gap:10px;align-items:center;border-left:4px solid var(--accent)}
.mycards{padding:0}
/* clickable things should not select text */
.btn,.chip,.filterbar .chip,.tabs a,.top nav a,.tile,.card,.list-head,.add-list button,.list-foot button,.pop .item,.badge,.avatar,.facepile,.label-chip,.due,.checklist li>span,.board-head h1,.modal .close,.side .btn,.desc .ph,.act,.mycards li,th,summary{user-select:none;-webkit-user-select:none}
.card .title{user-select:none}
.desc,.comment .body,pre.mail,.modal h2,.card-panel p,td{user-select:text;-webkit-user-select:text}