/* ===== RipplesX To do — Microsoft To Do inspired theme ===== */
:root{--bg:#faf9f8;--panel:#fff;--side:#f3f2f1;--border:#e1dfdd;--text:#323130;--muted:#605e5c;--accent:#2564cf;--accent-bg:#e8f0fe;--danger:#d13438;--ok:#107c10;--warn:#ca5010;--star:#2564cf;--radius:4px;--shadow:0 1.6px 3.6px rgba(0,0,0,.13),0 .3px .9px rgba(0,0,0,.11);--hero1:#2564cf;--hero2:#4a8ff0}
@media (prefers-color-scheme:dark){:root{--bg:#1f1f1f;--panel:#292929;--side:#1b1b1b;--border:#3b3a39;--text:#f3f2f1;--muted:#a19f9d;--accent:#78a9ff;--accent-bg:#1f2d4a;--star:#78a9ff;--shadow:0 1.6px 3.6px rgba(0,0,0,.5)}}
*{box-sizing:border-box}html,body{margin:0;height:100%}
body{font:14px/1.45 "Segoe UI",-apple-system,system-ui,Roboto,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--accent);cursor:pointer;text-decoration:none}
input,select,textarea,button{font:inherit;color:inherit}
input:not([type=checkbox]):not([type=file]),select,textarea{width:100%;padding:7px 10px;border:1px solid var(--border);border-radius:var(--radius);background:var(--panel)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
textarea{resize:vertical}
.btn{padding:6px 14px;border:1px solid var(--border);background:var(--panel);border-radius:var(--radius);cursor:pointer}.btn:hover{background:var(--bg)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.danger{color:var(--danger)}.btn.full{width:100%}.btn.sm{padding:3px 10px;font-size:13px}
.icon-btn{border:0;background:transparent;cursor:pointer;font-size:16px;padding:4px 8px;border-radius:var(--radius);color:var(--muted)}.icon-btn:hover{background:rgba(0,0,0,.06);color:var(--text)}.icon-btn.danger:hover{color:var(--danger)}.icon-btn.light{color:#fff}
.muted{color:var(--muted)}.small{font-size:12px}.spacer{flex:1}.row{display:flex;gap:8px;align-items:center}.hidden{display:none!important}
.ico{width:22px;display:inline-grid;place-items:center;font-size:15px;flex:none}
h4{margin:18px 0 8px;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}

/* ===== layout ===== */
#app{display:grid;grid-template-columns:290px 1fr;height:100vh;height:100dvh}
#sidebar{background:var(--side);display:flex;flex-direction:column;overflow-y:auto;border-right:1px solid var(--border)}
.side-user{display:flex;align-items:center;gap:10px;padding:16px 16px 8px}.side-user .icon-btn{display:none;margin-left:auto}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:600;flex:none}
.side-user-txt{display:flex;flex-direction:column;min-width:0}.side-user-txt b{font-size:14px;font-weight:600}.side-user-txt span{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.side-search{display:flex;align-items:center;gap:6px;margin:8px 16px 10px;background:var(--panel);border-bottom:2px solid var(--border);padding:0 6px}.side-search input{border:0;background:transparent;padding:7px 4px}.side-search input:focus{outline:0}.side-search:focus-within{border-color:var(--accent)}
#sidebar nav a{display:flex;align-items:center;gap:10px;padding:9px 16px;color:var(--text);font-size:14px;border-left:3px solid transparent}
#sidebar nav a:hover{background:rgba(0,0,0,.05)}#sidebar nav a.on{background:var(--panel);border-left-color:var(--accent)}
#sidebar nav a b{margin-left:auto;font-weight:400;font-size:12px;color:var(--muted)}
#sidebar nav a .dot{width:10px;height:10px;border-radius:50%;flex:none;margin:0 6px}
.side-divider{height:1px;background:var(--border);margin:8px 16px}
#listNav a.main{font-weight:600}#listNav a.sub{padding-left:26px;font-weight:400}#listNav a .caret{width:14px;color:var(--muted);font-size:10px;transition:transform .15s;display:inline-block}#listNav a .caret.open{transform:rotate(90deg)}
#listNav a.drop-ok{outline:2px dashed var(--accent);outline-offset:-2px;background:var(--accent-bg)}
.side-section{display:flex;align-items:center;justify-content:space-between;padding:14px 16px 4px;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
nav.tags{display:flex;flex-wrap:wrap;gap:6px;padding:4px 16px}nav.tags a{padding:2px 10px!important;border-radius:999px!important;font-size:12px!important;background:var(--panel);border:1px solid var(--border);border-left:1px solid var(--border)!important}
.side-foot{margin-top:auto;padding:8px 0 10px;border-top:1px solid var(--border)}.side-foot a{display:flex;align-items:center;gap:10px;padding:9px 16px;color:var(--text)}.side-foot a:hover{background:rgba(0,0,0,.05)}

#main{display:flex;flex-direction:column;min-width:0;overflow:hidden;position:relative}
.hero{background:linear-gradient(135deg,var(--hero1),var(--hero2));color:#fff;padding:18px 28px 16px}
.hero-top{display:flex;align-items:center;gap:12px}.hero-title{display:flex;align-items:center;gap:10px}.hero-ico{font-size:24px}
.hero h1{font-size:26px;font-weight:600;margin:0;letter-spacing:-.01em}.hero-sub{font-size:13px;opacity:.85;margin-top:2px;padding-left:2px}
.hero-btn{background:rgba(255,255,255,.18);border:0;color:#fff;padding:6px 12px;border-radius:var(--radius);cursor:pointer;font-size:13px}.hero-btn:hover,.hero-btn.on{background:rgba(255,255,255,.32)}
#openSide{display:none}
.seg{display:flex;background:rgba(255,255,255,.18);border-radius:var(--radius);overflow:hidden}.seg button{border:0;background:transparent;padding:6px 12px;cursor:pointer;font-size:13px;color:#fff}.seg button.on{background:#fff;color:var(--accent)}
.filters{display:flex;flex-wrap:wrap;gap:6px;align-items:center;padding:10px 28px 0}
.filters select,.filters input[type=date]{width:auto;padding:4px 8px;font-size:13px}.filters .chk{display:flex;align-items:center;gap:4px;font-size:13px;margin:0;color:var(--text)}
.filters select.set,.filters input.set{border-color:var(--accent);background:var(--accent-bg)}
#content{flex:1;overflow:auto;padding:14px 28px 90px}
.quick-add{position:absolute;left:28px;right:28px;bottom:18px;display:flex;align-items:center;gap:6px;background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);padding:4px 8px 4px 14px}
.qa-plus{color:var(--accent);font-size:20px;width:22px}.quick-add input{border:0;background:transparent;padding:12px 6px}.quick-add input:focus{outline:0}.quick-add select{width:auto;max-width:200px;border:0;background:transparent;color:var(--muted);font-size:13px}

/* ===== task rows ===== */
.task{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:3px;cursor:pointer;min-height:52px}
.task:hover{background:var(--accent-bg)}.task.done .t-title{text-decoration:line-through;color:var(--muted)}.task.dragging{opacity:.5}.task.sel{background:var(--accent-bg)}
.circle{width:20px;height:20px;border-radius:50%;border:1.5px solid var(--muted);background:transparent;cursor:pointer;flex:none;display:grid;place-items:center;color:transparent;font-size:12px;padding:0}
.circle:hover{color:var(--accent);border-color:var(--accent)}.circle:hover::after,.circle.on::after{content:"✓"}.circle.on{background:var(--accent);border-color:var(--accent);color:#fff}
.t-main{flex:1;min-width:0}.t-title{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.t-sub{display:flex;gap:6px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-top:2px;align-items:center}.t-sub>span+span::before{content:"•";margin-right:6px;color:var(--border)}
.t-sub .dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:4px}
.t-sub .overdue{color:var(--danger)}.t-sub .today{color:var(--accent)}
.pill{padding:0 6px;border-radius:999px;font-size:11px;background:var(--bg);border:1px solid var(--border)}.pill.rep{color:var(--accent)}
.star{border:0;background:transparent;cursor:pointer;font-size:18px;color:var(--muted);padding:2px 6px;flex:none;line-height:1}.star:hover,.star.on{color:var(--star)}
.prio{width:3px;align-self:stretch;border-radius:2px;flex:none;margin:-10px 0 -10px -16px}.prio.p3{background:var(--danger)}.prio.p2{background:var(--warn)}.prio.p1{background:var(--accent)}
.group-title{margin:16px 0 6px;font-size:13px;color:var(--text);font-weight:600;display:flex;align-items:center;gap:8px;cursor:pointer;user-select:none}.group-title .caret{font-size:10px;color:var(--muted);transition:transform .15s}.group-title.closed .caret{transform:rotate(-90deg)}.group-title .n{color:var(--muted);font-weight:400}
.empty{text-align:center;color:var(--muted);padding:80px 20px}.empty .big{font-size:48px;margin-bottom:8px}

/* ===== board ===== */
.board{display:grid;grid-template-columns:repeat(3,minmax(240px,1fr));gap:14px;min-height:60vh;align-items:start}
.col{background:rgba(0,0,0,.03);border-radius:var(--radius);padding:10px;min-height:200px}.col h3{margin:4px 4px 10px;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.col.over{outline:2px dashed var(--accent)}.col .task{cursor:grab}

/* ===== detail pane ===== */
#detail{position:fixed;top:0;right:0;width:400px;max-width:100%;height:100%;background:var(--side);border-left:1px solid var(--border);display:flex;flex-direction:column;z-index:30}
.detail-body{padding:14px 16px;overflow:auto;flex:1}
.d-group{background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);margin:12px 0;padding:2px 0}
.d-title-row{display:flex;align-items:center;gap:12px;background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);padding:12px 14px 8px}
.title-input{font-size:17px;font-weight:600;border:0!important;padding:4px 0!important;background:transparent!important;flex:1}
.steps{list-style:none;padding:0 14px;margin:0;background:var(--panel);box-shadow:var(--shadow)}.steps li{display:flex;align-items:center;gap:12px;padding:8px 0;border-bottom:1px solid var(--border)}.steps li.done span{text-decoration:line-through;color:var(--muted)}.steps li span{flex:1}.steps li .circle{width:16px;height:16px;font-size:10px}
.add-step{background:var(--panel);box-shadow:var(--shadow);border-radius:0 0 var(--radius) var(--radius)}.add-step .ico{color:var(--accent)}.add-step input{border:0;background:transparent;padding:6px 0}.add-step input:focus{outline:0}
.d-row{display:flex;align-items:center;gap:10px;padding:9px 14px;min-height:44px;border-bottom:1px solid var(--border)}.d-group .d-row:last-child{border-bottom:0}
.d-row.clickable{cursor:pointer}.d-row.clickable:hover{background:var(--accent-bg)}.d-row .d-lbl{flex:1;min-width:0;color:var(--text)}
.d-row .inline-input{width:auto;flex:1;border:0;background:transparent;padding:4px 0;min-width:0}.d-row .inline-input:focus{outline:0}
.d-sub-lbl{padding:8px 14px 2px;font-size:12px;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:6px}.chips.indent{padding:0 14px 8px 46px}.chips.indent:empty{display:none}
.chip{display:inline-flex;align-items:center;gap:4px;padding:2px 8px 2px 10px;border-radius:999px;font-size:12px;background:var(--bg);border:1px solid var(--border)}.chip a{color:var(--muted);font-size:13px;line-height:1}.chip a:hover{color:var(--danger)}.chip.person{background:var(--accent-bg);border-color:transparent;color:var(--accent)}
.folder-txt{display:flex;flex-direction:column}.folder-txt>span:first-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}
.drop{cursor:pointer}.drop.over{background:var(--accent-bg)}
.attachments{list-style:none;padding:0 14px 8px;margin:0}.attachments li{display:flex;align-items:center;gap:10px;padding:6px 0;border-top:1px solid var(--border)}
.attachments .f-icon{font-size:20px}.attachments .f-main{flex:1;min-width:0}.attachments .f-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}
.progress{height:4px;background:var(--border);margin:0 14px;overflow:hidden}.progress div{height:100%;width:0;background:var(--accent);transition:width .2s}
.d-group textarea{border:0;background:transparent;padding:10px 14px}.d-group textarea:focus{outline:0}
.comments{list-style:none;padding:0 14px;margin:0 0 8px}.comments li{padding:6px 8px;background:var(--bg);border-radius:var(--radius);margin-bottom:6px;font-size:13px}.comments li b{font-size:11px;color:var(--muted);display:block}
.d-group .row{padding:4px 14px 10px}
.series{list-style:none;padding:0 14px 6px;margin:0}.series li{display:flex;align-items:center;gap:8px;padding:5px 8px;border-radius:var(--radius);font-size:13px;cursor:pointer}.series li:hover{background:var(--bg)}.series li.cur{background:var(--accent-bg);cursor:default}
.series li .st{width:8px;height:8px;border-radius:50%;background:var(--border)}.series li.done .st{background:var(--ok)}.series li .n{flex:1}
.detail-foot{display:flex;align-items:center;gap:8px;padding:8px 10px;border-top:1px solid var(--border);background:var(--side)}
#overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.25);z-index:20}#overlay.on{display:block}

/* ===== settings ===== */
.card{background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px;margin-bottom:16px;max-width:900px}.card h3{margin:0 0 10px;font-size:16px;font-weight:600}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--border);vertical-align:middle}th{font-size:12px;color:var(--muted);text-transform:uppercase}
td input,td select{padding:5px 8px}td.row{display:flex;gap:6px;align-items:center;border-bottom:0}tr{border-bottom:1px solid var(--border)}td.row input{min-width:140px}
.status-ok{color:var(--ok);font-weight:600}.status-bad{color:var(--danger);font-weight:600}
.folder-row{display:flex;align-items:center;gap:8px;padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:10px}.folder-row .f-ico{font-size:20px}.folder-row .f-path{flex:1;min-width:0;display:flex;flex-direction:column}.folder-row .f-path>span:first-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}

/* ===== modal / picker ===== */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:50;display:flex;align-items:center;justify-content:center;padding:16px}
.modal-card{background:var(--panel);border-radius:8px;width:640px;max-width:100%;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 8px 32px rgba(0,0,0,.3)}
.modal-head{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border)}
.crumbs{display:flex;flex-wrap:wrap;gap:2px;align-items:center;padding:8px 16px;font-size:13px;border-bottom:1px solid var(--border)}.crumbs a{padding:2px 6px;border-radius:var(--radius);color:var(--text)}.crumbs a:hover{background:var(--accent-bg)}.crumbs span{color:var(--muted)}.crumbs a.cur{font-weight:600;color:var(--accent)}
.pk-list{flex:1;overflow:auto;min-height:260px;max-height:50vh}
.pk-item{display:flex;align-items:center;gap:10px;padding:8px 16px;cursor:pointer;border-bottom:1px solid var(--border)}.pk-item:hover{background:var(--bg)}.pk-item.sel{background:var(--accent-bg)}
.pk-item .n{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pk-item .go{color:var(--muted);font-size:12px;padding:2px 8px;border:1px solid var(--border);border-radius:var(--radius)}.pk-item .go:hover{color:var(--accent);border-color:var(--accent)}
.modal-foot{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:10px 16px;border-top:1px solid var(--border)}.modal-foot input{width:180px}

/* ===== login ===== */
.login-body{display:grid;place-items:center;padding:20px;background:linear-gradient(135deg,#2564cf,#4a8ff0)}
.login-card{background:var(--panel);border-radius:8px;padding:28px;width:360px;max-width:100%;box-shadow:0 8px 32px rgba(0,0,0,.3)}
.login-card .logo{margin-bottom:18px;justify-content:center;display:flex;align-items:center;gap:8px;font-weight:600;font-size:17px}.logo-mark{background:var(--accent);color:#fff;width:26px;height:26px;border-radius:6px;display:inline-grid;place-items:center;font-size:15px}
.login-card label{display:block;font-size:13px;color:var(--muted);margin-bottom:10px}.login-card label input{margin-top:4px;color:var(--text)}
.alert{background:#fde7e9;color:#a4262c;padding:8px 12px;border-radius:var(--radius);font-size:13px;margin-bottom:12px}
#toast{position:fixed;bottom:80px;left:50%;transform:translateX(-50%);background:#323130;color:#fff;padding:10px 16px;border-radius:var(--radius);font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:99;max-width:90vw;box-shadow:var(--shadow)}#toast.on{opacity:1}

@media (max-width:900px){
  #app{grid-template-columns:1fr}
  #sidebar{position:fixed;inset:0 auto 0 0;width:290px;z-index:40;transform:translateX(-100%);transition:transform .2s}#sidebar.open{transform:none}
  .side-user .icon-btn,#openSide{display:inline-block}
  .board{grid-template-columns:1fr}
  #detail{width:100%}.hero{padding:14px 14px 12px}.hero h1{font-size:22px}.filters{padding:8px 14px 0}#content{padding:12px 14px 90px}.quick-add{left:12px;right:12px;bottom:12px}
  .hero-btn{display:none}
}
/* detail pane pushes content on desktop */
@media (min-width:901px){ #app.detail-open #main{margin-right:400px} #detail{position:fixed} }