/* styles.css — 智能 To-Do Calendar */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0f1419;
  --panel: #1a212b;
  --panel2: #222b38;
  --line: #2e3946;
  --text: #e6edf3;
  --dim: #8b98a5;
  --accent: #4c8bf5;
  --accent2: #386fd6;
  --ok: #3fb96a;
  --warn: #e8a13a;
  --bad: #e5534b;
  --fixed: #5b5f66;
  --mono: "SF Mono", Menlo, Consolas, monospace;
}
html, body { height: 100%; }
body {
  font-family: -apple-system, "PingFang TC", "Microsoft JhengHei", "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.5;
}
a { color: var(--accent); }
button { font: inherit; }
input, select, textarea { font: inherit; color: var(--text); background: var(--panel2);
  border: 1px solid var(--line); border-radius: 6px; padding: 6px 10px; }
input:focus, select:focus, textarea:focus { outline: 1px solid var(--accent); }

/* layout */
#app { display: flex; min-height: 100vh; }
#sidebar {
  width: 210px; background: var(--panel); border-right: 1px solid var(--line);
  padding: 16px 12px; position: fixed; top: 0; bottom: 0; display: flex;
  flex-direction: column; gap: 4px; z-index: 5;
}
#sidebar .brand { font-weight: 700; font-size: 15px; padding: 6px 10px 14px; }
#sidebar .brand small { display: block; color: var(--dim); font-weight: 400; font-size: 11px; margin-top: 2px; }
.navbtn {
  background: none; border: 0; color: var(--dim); text-align: left; padding: 9px 12px;
  border-radius: 7px; cursor: pointer; font-size: 14px; width: 100%;
}
.navbtn:hover { background: var(--panel2); color: var(--text); }
.navbtn.active { background: var(--accent); color: #fff; font-weight: 600; }
#sidebar .spacer { flex: 1; }
#sidebar .meta { color: var(--dim); font-size: 11px; padding: 8px 10px; border-top: 1px solid var(--line); }
#main { margin-left: 210px; flex: 1; padding: 22px 28px; max-width: 1100px; }
h1 { font-size: 20px; font-weight: 700; margin-bottom: 16px; }
h2 { font-size: 15px; font-weight: 600; margin: 22px 0 10px; color: var(--text); }
h2 .cnt { color: var(--dim); font-weight: 400; font-size: 12px; margin-left: 6px; }

/* cards / panels */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin-bottom: 12px; }
.card.row { display: flex; align-items: center; gap: 12px; }
.muted { color: var(--dim); font-size: 12px; }
.small { font-size: 12px; }

/* tags */
.tag { display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 10px; background: var(--panel2); color: var(--dim); border: 1px solid var(--line); white-space: nowrap; }
.tag.st-ok   { background: rgba(63,185,106,.15); color: var(--ok); border-color: transparent; }
.tag.st-warn { background: rgba(232,161,58,.15); color: var(--warn); border-color: transparent; }
.tag.st-bad  { background: rgba(229,83,75,.15); color: var(--bad); border-color: transparent; }
.tag.st-info { background: rgba(76,139,245,.15); color: var(--accent); border-color: transparent; }
.tag.st-fixed{ background: var(--fixed); color: #fff; border-color: transparent; }

/* timeline / schedule blocks */
.slot { display: flex; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.slot:last-child { border-bottom: 0; }
.slot .time { width: 120px; color: var(--dim); font-size: 12px; font-family: var(--mono); flex-shrink: 0; padding-top: 2px; }
.slot .body { flex: 1; }
.slot.fixed .body { background: rgba(91,95,102,.18); border-left: 3px solid var(--fixed); padding: 6px 10px; border-radius: 4px; }
.slot.planned .body { background: rgba(76,139,245,.08); border-left: 3px solid var(--accent); padding: 6px 10px; border-radius: 4px; }
.slot .title { font-weight: 600; }
.slot .meta-line { display: flex; gap: 10px; align-items: center; margin-top: 3px; flex-wrap: wrap; }

/* week grid */
.weekgrid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.wday { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; min-height: 120px; }
.wday .dhead { padding: 8px 10px; border-bottom: 1px solid var(--line); font-size: 12px; color: var(--dim); font-weight: 600; }
.wday.today .dhead { color: var(--accent); }
.wday .dbody { padding: 6px; display: flex; flex-direction: column; gap: 4px; }
.chip { font-size: 11px; padding: 3px 6px; border-radius: 4px; border-left: 2px solid var(--accent); background: rgba(76,139,245,.1); }
.chip.fixed { border-left-color: var(--fixed); background: rgba(91,95,102,.2); }
.chip .t { font-family: var(--mono); color: var(--dim); margin-right: 4px; }

/* table */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; color: var(--dim); font-weight: 600; font-size: 12px; padding: 8px 10px; border-bottom: 1px solid var(--line); }
td { padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:hover td { background: var(--panel); }

/* kanban */
.kanban { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.kcol { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 10px; }
.kcol .khead { font-size: 12px; font-weight: 600; padding: 4px 6px 10px; color: var(--dim); border-bottom: 1px solid var(--line); margin-bottom: 10px; }
.kcard { background: var(--panel2); border: 1px solid var(--line); border-radius: 7px; padding: 9px 11px; margin-bottom: 8px; cursor: pointer; }
.kcard:hover { border-color: var(--accent); }
.kcard .ktitle { font-weight: 600; font-size: 13px; }
.kcard .kmeta { display: flex; gap: 8px; margin-top: 6px; flex-wrap: wrap; }

/* buttons */
.btn { background: var(--accent); color: #fff; border: 0; border-radius: 7px; padding: 7px 14px; cursor: pointer; font-size: 13px; }
.btn:hover { background: var(--accent2); }
.btn.ghost { background: none; border: 1px solid var(--line); color: var(--text); }
.btn.ghost:hover { border-color: var(--accent); }
.btn.danger { background: var(--bad); }
.btn.sm { padding: 4px 9px; font-size: 12px; border-radius: 5px; }

/* modal */
#modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: none; z-index: 50; align-items: flex-start; justify-content: center; padding-top: 60px; }
#modal-bg.show { display: flex; }
#modal { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; width: 640px; max-width: 94vw; max-height: 80vh; overflow: auto; padding: 20px 22px; }
#modal h3 { font-size: 16px; margin-bottom: 14px; }
#modal .mclose { float: right; background: none; border: 0; color: var(--dim); font-size: 20px; cursor: pointer; }

/* forms */
.formrow { margin-bottom: 12px; display: flex; gap: 10px; }
.formrow label { flex: 0 0 92px; color: var(--dim); font-size: 12px; padding-top: 7px; }
.formrow > * { flex: 1; }
.formgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }

/* progress */
.bar { height: 6px; background: var(--panel2); border-radius: 3px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--accent); }
.bar > span.ok { background: var(--ok); }
.bar > span.bad { background: var(--bad); }

/* adaptation history */
.adp { border-left: 3px solid var(--warn); background: var(--panel); border-radius: 6px; padding: 10px 12px; margin-bottom: 10px; }
.adp .adp-h { display: flex; gap: 10px; align-items: center; margin-bottom: 6px; }
.adp .adp-diff { font-size: 11px; font-family: var(--mono); color: var(--dim); }
.diff-del { color: var(--bad); }
.diff-add { color: var(--ok); }

/* burn-down svg */
.bd { width: 100%; height: 120px; }
.bd .line { stroke: var(--accent); fill: none; stroke-width: 2; }
.bd .dl { stroke: var(--bad); stroke-dasharray: 4 3; stroke-width: 1; }
.bd .txt { fill: var(--dim); font-size: 10px; }

/* check-in banner */
.checkin { background: linear-gradient(135deg, var(--panel), var(--panel2)); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin-bottom: 18px; }
.checkin h2 { margin: 0 0 10px; }
.warn-item { padding: 7px 10px; border-radius: 6px; margin-bottom: 6px; font-size: 13px; }
.warn-item.urgent { background: rgba(229,83,75,.14); border-left: 3px solid var(--bad); }
.warn-item.high { background: rgba(232,161,58,.14); border-left: 3px solid var(--warn); }
.warn-item.normal { background: rgba(76,139,245,.10); border-left: 3px solid var(--accent); }

/* subtask list */
.sub { display: flex; align-items: center; gap: 10px; padding: 7px 0; border-bottom: 1px solid var(--line); }
.sub:last-child { border-bottom: 0; }
.sub .s-title { flex: 1; }
.sub .s-hrs { font-family: var(--mono); font-size: 12px; color: var(--dim); }
.chk { width: 17px; height: 17px; accent-color: var(--accent); cursor: pointer; flex-shrink: 0; }

/* toasts */
#toasts { position: fixed; bottom: 20px; right: 20px; z-index: 99; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--panel2); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 7px; padding: 10px 14px; font-size: 13px; box-shadow: 0 4px 18px rgba(0,0,0,.4); max-width: 340px; }
.toast.err { border-left-color: var(--bad); }
.toast.ok { border-left-color: var(--ok); }

.empty { color: var(--dim); text-align: center; padding: 30px; font-size: 13px; }
.flex { display: flex; gap: 10px; align-items: center; }
.flex.wrap { flex-wrap: wrap; }
.mt { margin-top: 10px; }
.mb { margin-bottom: 10px; }
.right { margin-left: auto; }