:root{
  --bg:#0f1115; --bg-soft:#151922; --panel:#1a1f2b; --panel-2:#212836;
  --line:#2a3141; --line-soft:#232936;
  --text:#e6e9f0; --text-dim:#9aa4b8; --text-mute:#6b7588;
  --accent:#6ea8fe; --accent-2:#8b7cf6;
  --green:#7ee787; --amber:#f2b95c; --red:#ff7b72; --pink:#f778ba;
  --radius:10px; --radius-sm:7px;
  --shadow:0 8px 28px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#2b3342;border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:#364054}
::-webkit-scrollbar-track{background:transparent}

/* ---------- 登录 ---------- */
.login-wrap{min-height:100%;display:grid;place-items:center;padding:24px;
  background:radial-gradient(1200px 600px at 70% -10%,#1b2436 0%,var(--bg) 60%)}
.login-card{width:100%;max-width:360px;background:var(--panel);border:1px solid var(--line);
  border-radius:14px;padding:28px;box-shadow:var(--shadow)}
.login-card h1{margin:0 0 4px;font-size:19px;letter-spacing:.3px}
.login-card .sub{color:var(--text-mute);font-size:12.5px;margin-bottom:22px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;color:var(--text-dim);margin-bottom:6px}
.input{width:100%;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:9px 11px;outline:none;transition:border-color .15s}
.input:focus{border-color:var(--accent)}
textarea.input{resize:vertical;min-height:80px;font-family:inherit}
.btn{background:var(--accent);color:#0d1117;border:none;border-radius:var(--radius-sm);
  padding:9px 16px;font-weight:600;transition:filter .15s}
.btn:hover{filter:brightness(1.08)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.block{width:100%}
.btn.ghost{background:transparent;color:var(--text-dim);border:1px solid var(--line);font-weight:500}
.btn.ghost:hover{background:var(--panel-2);color:var(--text)}
.btn.danger{background:transparent;color:var(--red);border:1px solid #4a2a2a}
.btn.sm{padding:5px 10px;font-size:12.5px}
.err{color:var(--red);font-size:12.5px;min-height:18px;margin-top:6px}

/* ---------- 应用布局 ---------- */
.app{display:grid;grid-template-columns:210px 1fr;min-height:100vh}
.sidebar{background:var(--bg-soft);border-right:1px solid var(--line);padding:18px 12px;
  display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh;overflow:auto}
.brand{display:flex;align-items:center;gap:9px;padding:4px 8px 16px;font-weight:600;letter-spacing:.2px}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 12px var(--accent)}
.nav-item{display:flex;align-items:center;gap:9px;padding:9px 10px;border-radius:var(--radius-sm);
  color:var(--text-dim);cursor:pointer;transition:.15s;border:none;background:none;width:100%;text-align:left}
.nav-item:hover{background:var(--panel);color:var(--text)}
.nav-item.active{background:var(--panel-2);color:var(--text);font-weight:600}
.nav-item .ic{width:17px;text-align:center;font-size:14px;opacity:.9}
.sidebar .spacer{flex:1}
.sidebar .user{font-size:12px;color:var(--text-mute);padding:10px 10px 0;border-top:1px solid var(--line);
  margin-top:10px;display:flex;justify-content:space-between;align-items:center;gap:8px}

.main{padding:22px 26px 60px;min-width:0}
.page-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.page-head h2{margin:0;font-size:20px;letter-spacing:.2px}
.page-head .date{color:var(--text-dim);font-size:13px}
.head-actions{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- 卡片 ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.card h3{margin:0 0 12px;font-size:13px;text-transform:uppercase;letter-spacing:.9px;color:var(--text-mute);font-weight:600}
.grid-2{display:grid;grid-template-columns:1fr 320px;gap:18px;align-items:start}
@media(max-width:1080px){.grid-2{grid-template-columns:1fr}}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden}
.tl-scroll{max-height:calc(100vh - 210px);overflow:auto;position:relative}
.tl-inner{position:relative;padding-left:58px}
.hour{height:52px;border-top:1px solid var(--line-soft);position:relative}
.hour:first-child{border-top:none}
.hour .lbl{position:absolute;left:-52px;top:-9px;font-size:11.5px;color:var(--text-mute);
  width:46px;text-align:right;font-variant-numeric:tabular-nums}
.hour.half::after{content:"";position:absolute;left:0;right:0;top:26px;border-top:1px dashed #1e2431}
.now-line{position:absolute;left:58px;right:0;height:0;border-top:2px solid var(--red);z-index:5;pointer-events:none}
.now-line::before{content:"";position:absolute;left:-4px;top:-4px;width:8px;height:8px;border-radius:50%;background:var(--red)}
.ev{position:absolute;left:8px;right:10px;border-radius:6px;padding:4px 8px;font-size:12.5px;
  overflow:hidden;cursor:pointer;border-left:3px solid var(--accent);
  background:linear-gradient(180deg,rgba(110,168,254,.22),rgba(110,168,254,.10));
  transition:box-shadow .15s,transform .1s;z-index:3;min-height:20px}
.ev:hover{box-shadow:0 3px 14px rgba(0,0,0,.4);z-index:6}
.ev.dragging{opacity:.85;z-index:10;transform:scale(1.01)}
.ev .t{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ev .m{color:var(--text-dim);font-size:11px;font-variant-numeric:tabular-nums}
.ev.done{opacity:.55}
.ev.done .t{text-decoration:line-through}
.ev.p1{border-left-color:var(--red);background:linear-gradient(180deg,rgba(255,123,114,.20),rgba(255,123,114,.08))}
.ev.p3{border-left-color:var(--text-mute);background:linear-gradient(180deg,rgba(140,150,170,.16),rgba(140,150,170,.07))}
.ev.grab{cursor:grab}

/* ---------- 侧栏小卡 ---------- */
.side-col{display:flex;flex-direction:column;gap:14px}
.stat-row{display:flex;justify-content:space-between;align-items:baseline;padding:6px 0;font-size:13px}
.stat-row + .stat-row{border-top:1px solid var(--line-soft)}
.stat-row .k{color:var(--text-dim)}
.stat-row .v{font-weight:600;font-variant-numeric:tabular-nums}
.mini-list{display:flex;flex-direction:column;gap:7px;max-height:260px;overflow:auto}
.mini-item{display:flex;align-items:flex-start;gap:9px;font-size:13px;padding:5px 0;cursor:pointer;
  border-radius:6px}
.mini-item:hover{background:var(--panel-2)}
.mini-item .chk{width:15px;height:15px;border-radius:4px;border:1.5px solid var(--line);
  flex:0 0 auto;margin-top:2px;display:grid;place-items:center;font-size:10px;color:transparent}
.mini-item .chk.on{background:var(--green);border-color:var(--green);color:#0d1117}
.mini-item .txt{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis}
.mini-item.done .txt{text-decoration:line-through;color:var(--text-mute)}
.empty{color:var(--text-mute);font-size:12.5px;padding:8px 0}

/* ---------- 日历 ---------- */
.cal-toolbar{display:flex;align-items:center;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{background:none;border:none;padding:6px 13px;color:var(--text-dim);font-size:13px}
.seg button.active{background:var(--panel-2);color:var(--text);font-weight:600}
.month-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.month-dow{background:var(--panel);padding:8px;text-align:center;font-size:11.5px;color:var(--text-mute);
  text-transform:uppercase;letter-spacing:.6px}
.month-cell{background:var(--panel);min-height:104px;padding:7px;cursor:pointer;position:relative;transition:.12s}
.month-cell:hover{background:var(--panel-2)}
.month-cell.out{background:#12161e;color:var(--text-mute);opacity:.6}
.month-cell.today{box-shadow:inset 0 0 0 1.5px var(--accent)}
.month-cell .d{font-size:12px;color:var(--text-dim);font-variant-numeric:tabular-nums;margin-bottom:5px}
.month-cell.today .d{color:var(--accent);font-weight:700}
.month-cell .pill{font-size:11px;padding:2px 6px;border-radius:4px;margin-bottom:3px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  background:rgba(110,168,254,.16);border-left:2px solid var(--accent)}
.month-cell .more{font-size:10.5px;color:var(--text-mute)}

.week-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
.week-col{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:9px;min-height:420px}
.week-col.today{border-color:var(--accent)}
.week-col .h{font-size:12px;color:var(--text-dim);margin-bottom:9px;display:flex;
  justify-content:space-between;align-items:center}
.week-col .h b{color:var(--text);font-size:14px;font-variant-numeric:tabular-nums}
.week-col .e{font-size:11.5px;padding:3px 6px;border-radius:4px;margin-bottom:4px;cursor:pointer;
  background:rgba(110,168,254,.14);border-left:2px solid var(--accent);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- 任务 ---------- */
.task-filters{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.chip{padding:5px 12px;border-radius:16px;border:1px solid var(--line);background:var(--panel);
  font-size:12.5px;color:var(--text-dim)}
.chip.active{background:var(--panel-2);color:var(--text);border-color:#3a4356;font-weight:600}
.task{display:flex;align-items:flex-start;gap:11px;padding:11px 6px;border-bottom:1px solid var(--line-soft)}
.task:last-child{border-bottom:none}
.task .chk{width:17px;height:17px;border-radius:5px;border:1.6px solid #3c465a;flex:0 0 auto;
  margin-top:2px;display:grid;place-items:center;cursor:pointer;font-size:11px;color:transparent;transition:.12s}
.task .chk:hover{border-color:var(--green)}
.task .chk.on{background:var(--green);border-color:var(--green);color:#0d1117}
.task .body{flex:1;min-width:0}
.task .title{font-size:13.5px;cursor:pointer}
.task.done .title{text-decoration:line-through;color:var(--text-mute)}
.task .meta{font-size:11.5px;color:var(--text-mute);display:flex;gap:10px;flex-wrap:wrap;margin-top:3px}
.task .meta .overdue{color:var(--red)}
.task .meta .tag{background:var(--panel-2);padding:1px 7px;border-radius:9px}
.task .del{opacity:0;color:var(--text-mute);background:none;border:none;font-size:15px;padding:0 4px}
.task:hover .del{opacity:1}
.task .del:hover{color:var(--red)}
.subtasks{margin:4px 0 0 28px;border-left:1px solid var(--line);padding-left:12px}

/* ---------- 弹窗 ---------- */
.modal-bg{position:fixed;inset:0;background:rgba(4,6,10,.66);backdrop-filter:blur(3px);
  display:grid;place-items:center;z-index:100;padding:20px}
.modal{background:var(--panel);border:1px solid var(--line);border-radius:13px;width:100%;
  max-width:520px;max-height:90vh;overflow:auto;box-shadow:var(--shadow)}
.modal .m-head{display:flex;justify-content:space-between;align-items:center;padding:16px 18px;
  border-bottom:1px solid var(--line)}
.modal .m-head h3{margin:0;font-size:15px}
.modal .m-body{padding:16px 18px}
.modal .m-foot{display:flex;justify-content:flex-end;gap:9px;padding:13px 18px;
  border-top:1px solid var(--line)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.close-x{background:none;border:none;color:var(--text-mute);font-size:19px;line-height:1;padding:2px 6px}
.close-x:hover{color:var(--text)}

/* ---------- 杂项 ---------- */
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(12px);
  background:var(--panel-2);border:1px solid var(--line);color:var(--text);padding:10px 18px;
  border-radius:9px;font-size:13px;opacity:0;transition:.22s;z-index:200;pointer-events:none;box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.bad{border-color:#5a2b2b;color:#ffb4ad}
.hint{color:var(--text-mute);font-size:12px;margin-top:5px}
.code-box{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:22px;letter-spacing:5px;
  background:var(--bg-soft);border:1px dashed var(--line);border-radius:8px;padding:13px;
  text-align:center;margin:10px 0;color:var(--accent)}
@media(max-width:760px){
  .app{grid-template-columns:1fr}
  .sidebar{position:fixed;bottom:0;left:0;right:0;top:auto;height:auto;z-index:50;
    flex-direction:row;overflow-x:auto;padding:7px;border-right:none;border-top:1px solid var(--line)}
  .sidebar .brand,.sidebar .user,.sidebar .spacer{display:none}
  .nav-item{flex-direction:column;gap:2px;font-size:10.5px;padding:6px 10px;white-space:nowrap}
  .main{padding:14px 14px 84px}
  .grid-2{grid-template-columns:1fr}
  .month-cell{min-height:72px}
}