:root {
  --bg: #f7f8fa; --panel: #fff; --line: #e3e6ea; --text: #333; --muted: #8a8f98;
  --in: #1fa8e6; --out: #e5533d; --brk: #f29a2e; --back: #35b26a; --paid: #8a5cd6; --half: #b99be8;
  --late: #fff2cc; --early: #fce4d6; --paidbg: #ece3f8; --absent: #f8d0c8; --holiday: #ececec; --ot: #dcebf8; --note: #d9f0f7;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif; background: var(--bg); color: var(--text); font-size: 15px; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
input:focus, select:focus, textarea:focus { outline: 2px solid #bcdcf5; border-color: #7fb6e6; }
.btn { border: 0; border-radius: 6px; padding: 8px 14px; background: #2d6cdf; color: #fff; }
.btn.secondary { background: #e9ecf0; color: #333; }
.btn.danger { background: var(--out); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: .45; cursor: default; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; }
.muted { color: var(--muted); }
.err { color: #c0392b; font-size: 14px; min-height: 1.2em; }
.ok { color: #1e8e4a; }
table.tc { border-collapse: collapse; width: 100%; font-size: 14px; background: #fff; }
table.tc th, table.tc td { border: 1px solid var(--line); padding: 5px 8px; text-align: center; white-space: nowrap; }
table.tc th { background: #f1f3f6; font-weight: 600; }
table.tc td.l { text-align: left; }
table.tc tr.late { background: var(--late); }
table.tc tr.early { background: var(--early); }
table.tc tr.paid, table.tc tr.am_off, table.tc tr.pm_off { background: var(--paidbg); }
table.tc tr.absent { background: var(--absent); }
table.tc tr.holiday, table.tc tr.special { background: var(--holiday); }
table.tc td.ot { background: var(--ot); font-weight: 600; }
table.tc td.note { background: var(--note); text-align: left; max-width: 240px; white-space: normal; }
table.tc td.missing { color: #c0392b; font-weight: 600; }
table.tc .sat { color: #1f6fd0; }
table.tc .sun { color: #d0321f; }
table.tc tr.sum td { font-weight: 600; background: #e8f5ec; }
.legend { display: flex; flex-wrap: wrap; gap: 10px; font-size: 13px; margin: 8px 0; }
.legend span { padding: 2px 10px; border-radius: 4px; border: 1px solid var(--line); }
.modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,.35); display: none; align-items: center; justify-content: center; z-index: 50; }
.modal-bg.show { display: flex; }
.modal { background: #fff; border-radius: 12px; padding: 22px; min-width: 340px; max-width: 94vw; max-height: 92vh; overflow: auto; }
.modal h3 { margin: 0 0 12px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: 13px; }
.chip { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 12px; background: #eef; }
.chip.pending { background: #fff2cc; } .chip.approved { background: #d9f2e1; } .chip.rejected { background: #f8d0c8; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.tabs button { background: none; border: 0; padding: 10px 16px; border-bottom: 3px solid transparent; color: var(--muted); }
.tabs button.active { color: var(--text); border-bottom-color: #2d6cdf; font-weight: 600; }
.login { max-width: 380px; margin: 10vh auto; }
.login h1 { font-size: 20px; margin: 0 0 16px; }
.login .field { margin-bottom: 12px; }
.login input { width: 100%; padding: 10px; }