/* ============ 莫兰迪色调 ============ */
:root {
  --bg: #efebe6;           /* 燕麦灰 */
  --panel: #faf8f5;        /* 米白 */
  --panel-2: #f3efea;
  --text: #4a4541;         /* 暖炭灰 */
  --muted: #8f8780;
  --line: #e2dcd5;
  --line-soft: #ece7e1;
  --accent: #6e8090;       /* 雾霾蓝 */
  --accent-soft: #e3e8ec;
  --accent-text: #ffffff;
  --danger: #a65d55;       /* 砖粉 */
  --danger-bg: #f3e4e1;
  --ok: #5d7556;           /* 灰绿 */
  --ok-bg: #e4ebe0;
  --warn: #9a7a4c;         /* 驼色 */
  --warn-bg: #f2e9da;
  --today: #f5ede2;
  --shadow: 0 1px 2px rgba(74, 69, 65, .05), 0 4px 16px rgba(74, 69, 65, .06);
  --radius: 14px;
  --ev-text: #4a4541;
  color-scheme: light;
}
/* 课程颜色：8 种莫兰迪色 */
.c0 { --ev-bg: #dfe5da; --ev-bd: #8f9e89; }  /* 灰豆绿 */
.c1 { --ev-bg: #dbe2e9; --ev-bd: #7f93a6; }  /* 雾蓝 */
.c2 { --ev-bg: #eddcd8; --ev-bd: #b48f8a; }  /* 脏粉 */
.c3 { --ev-bg: #e9e0d5; --ev-bd: #a8927c; }  /* 奶茶 */
.c4 { --ev-bg: #e3dee9; --ev-bd: #9488a6; }  /* 灰紫 */
.c5 { --ev-bg: #e7e3d3; --ev-bd: #a39b78; }  /* 卡其 */
.c6 { --ev-bg: #d9e4e2; --ev-bd: #7c9c97; }  /* 青灰 */
.c7 { --ev-bg: #e8dae0; --ev-bd: #a8848f; }  /* 藕荷 */

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #23211f; --panel: #2c2a27; --panel-2: #32302c; --text: #e8e2db; --muted: #a39b93;
    --line: #3d3a36; --line-soft: #36332f; --accent: #94a6b6; --accent-soft: #343b41; --accent-text: #1f2328;
    --danger: #d49a92; --danger-bg: #3e2c29; --ok: #a6c09d; --ok-bg: #2c3529; --warn: #d2b386; --warn-bg: #3b3327;
    --today: #34302a; --shadow: 0 1px 2px rgba(0,0,0,.2), 0 4px 16px rgba(0,0,0,.25); --ev-text: #ece6df;
    color-scheme: dark;
  }
  .c0 { --ev-bg: #3a4237; --ev-bd: #9fb099; } .c1 { --ev-bg: #363f48; --ev-bd: #95a8bb; }
  .c2 { --ev-bg: #4a3a38; --ev-bd: #c9a39e; } .c3 { --ev-bg: #463d34; --ev-bd: #bea58d; }
  .c4 { --ev-bg: #3f3a47; --ev-bd: #ab9fbd; } .c5 { --ev-bg: #433f33; --ev-bd: #b8af8b; }
  .c6 { --ev-bg: #34423f; --ev-bd: #92b3ad; } .c7 { --ev-bg: #463840; --ev-bd: #bd99a4; }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.55 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; color: inherit; }
.boot { padding: 60px; text-align: center; color: var(--muted); }

/* ---------- 按钮与表单 ---------- */
.btn {
  border: 1px solid var(--line); background: var(--panel); border-radius: 999px;
  padding: 6px 14px; cursor: pointer; white-space: nowrap; transition: background .15s, border-color .15s;
}
.btn:hover { border-color: var(--muted); background: var(--panel-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { filter: brightness(1.06); }
.btn.danger { color: var(--danger); }
.btn.ok { color: var(--ok); }
.btn.small { padding: 3px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.seg { display: inline-flex; background: var(--panel-2); border: 1px solid var(--line); border-radius: 999px; padding: 2px; }
.seg button { border: 0; background: none; padding: 4px 12px; border-radius: 999px; cursor: pointer; color: var(--muted); }
.seg button.on { background: var(--panel); color: var(--text); box-shadow: var(--shadow); }
input[type=text], input[type=password], input[type=date], input[type=time], input[type=number], select, textarea {
  border: 1px solid var(--line); background: var(--panel); border-radius: 10px; padding: 7px 11px; width: 100%;
  outline: none; transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
textarea { resize: vertical; min-height: 64px; }
label.field, .field { display: block; margin-bottom: 14px; }
label.field > span, .field > .lbl { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; min-width: 0; }
.err { background: var(--danger-bg); color: var(--danger); padding: 9px 13px; border-radius: 10px; margin-bottom: 12px; }
.okbox { background: var(--ok-bg); color: var(--ok); padding: 9px 13px; border-radius: 10px; margin-bottom: 12px; }
.muted { color: var(--muted); }

/* ---------- 徽标 ---------- */
.tag { display: inline-block; font-size: 12px; line-height: 18px; padding: 0 8px; border-radius: 999px; background: var(--line-soft); color: var(--muted); white-space: nowrap; }
.tag.pending { background: var(--warn-bg); color: var(--warn); }
.tag.approved { background: var(--ok-bg); color: var(--ok); }
.tag.rejected { background: var(--danger-bg); color: var(--danger); }
.tag.cancel { background: var(--line-soft); color: var(--muted); }
.badge { display: inline-block; min-width: 18px; height: 18px; line-height: 18px; padding: 0 5px; border-radius: 9px; background: var(--danger); color: #fff; font-size: 11px; text-align: center; margin-left: 4px; }

/* ---------- 登录 ---------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px;
  background: radial-gradient(circle at 20% 15%, #e4e9e0 0, transparent 40%), radial-gradient(circle at 85% 85%, #ecdfda 0, transparent 40%), var(--bg); }
.login-card { width: 100%; max-width: 380px; background: var(--panel); border-radius: 20px; padding: 32px; box-shadow: var(--shadow); }
.login-card .logo { width: 42px; height: 42px; border-radius: 12px; background: linear-gradient(135deg, #8f9e89, #7f93a6); margin-bottom: 16px; }
.login-card h1 { margin: 0 0 4px; font-size: 22px; font-weight: 600; }
.login-card p { margin: 0 0 22px; color: var(--muted); }
.login-card .btn { width: 100%; padding: 10px; margin-top: 4px; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; gap: 18px; padding: 10px 24px;
  background: color-mix(in srgb, var(--panel) 88%, transparent); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20;
}
.brand { font-weight: 600; font-size: 16px; display: flex; align-items: center; gap: 8px; }
.brand i { width: 22px; height: 22px; border-radius: 7px; background: linear-gradient(135deg, #8f9e89, #7f93a6); display: inline-block; }
.nav { display: flex; gap: 4px; flex: 1; }
.nav a { padding: 6px 12px; border-radius: 999px; color: var(--muted); text-decoration: none; white-space: nowrap; }
.nav a:hover { color: var(--text); }
.nav a.active { background: var(--accent-soft); color: var(--text); font-weight: 500; }
.who { display: flex; align-items: center; gap: 8px; color: var(--muted); }
main { padding: 20px 24px 48px; max-width: 1280px; margin: 0 auto; }

/* ---------- 工具栏 ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 14px; }
.toolbar .range { font-weight: 600; font-size: 17px; margin: 0 8px; }
.toolbar .spacer { flex: 1; }
.toolbar select { width: auto; max-width: 200px; border-radius: 999px; }
.toolbar label.check { display: flex; gap: 5px; align-items: center; color: var(--muted); cursor: pointer; }
.hint { color: var(--muted); font-size: 13px; margin: -4px 0 12px; }

/* ---------- 周课表 ---------- */
.week-scroll { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); background: var(--panel); }
.week { min-width: 720px; }
.week-head, .week-body { display: grid; grid-template-columns: 54px repeat(7, 1fr); }
.week-head { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--panel); }
.week-head div { padding: 10px 4px; text-align: center; font-size: 12px; color: var(--muted); }
.week-head .d { display: block; font-size: 18px; color: var(--text); font-weight: 600; line-height: 1.3; }
.week-head .is-today .d { width: fit-content; min-width: 30px; margin: 0 auto; background: var(--accent); color: var(--accent-text); border-radius: 999px; padding: 0 6px; }
.time-col { position: sticky; left: 0; z-index: 7; background: var(--panel); border-right: 1px solid var(--line-soft); }
.week-head > div:first-child { position: sticky; left: 0; z-index: 7; background: var(--panel); }
.time-col span { position: absolute; right: 8px; font-size: 11px; color: var(--muted); transform: translateY(-50%); }
.day-col { position: relative; border-left: 1px solid var(--line-soft); }
.day-col.is-today { background: var(--today); }
.day-col.weekend { background: color-mix(in srgb, var(--panel-2) 60%, transparent); }
.day-col.is-today.weekend { background: var(--today); }
.hour-line { position: absolute; left: 0; right: 0; border-top: 1px solid var(--line-soft); }
.now-line { position: absolute; left: -1px; right: 0; border-top: 2px solid var(--danger); z-index: 4; }
.now-line::before { content: ""; position: absolute; left: -4px; top: -5px; width: 8px; height: 8px; border-radius: 50%; background: var(--danger); }
.ev {
  position: absolute; border-radius: 8px; padding: 4px 7px; font-size: 12px; line-height: 1.4;
  overflow: hidden; cursor: pointer; border-left: 3px solid var(--ev-bd); background: var(--ev-bg); color: var(--ev-text);
  transition: transform .1s, box-shadow .1s;
}
.ev:hover { z-index: 6; box-shadow: var(--shadow); transform: translateY(-1px); }
.ev b { display: block; font-weight: 600; }
.ev .tag { float: right; font-size: 10px; line-height: 15px; padding: 0 5px; margin: 1px 0 0 4px; }
.ev.cancelled, .ev.onleave { opacity: .55; background: repeating-linear-gradient(135deg, var(--ev-bg), var(--ev-bg) 6px, var(--panel) 6px, var(--panel) 12px); }
.ev.cancelled b { text-decoration: line-through; }
.ev.other { border-left-style: dashed; opacity: .75; }
.empty-week { padding: 14px; color: var(--muted); text-align: center; font-size: 13px; }

/* ---------- 列表视图 ---------- */
.agenda .day { background: var(--panel); border-radius: var(--radius); margin-bottom: 10px; overflow: hidden; box-shadow: var(--shadow); }
.agenda .day h3 { margin: 0; padding: 9px 14px; font-size: 14px; font-weight: 600; border-bottom: 1px solid var(--line-soft); }
.agenda .day.is-today h3 { background: var(--today); }
.agenda .empty { padding: 10px 14px; color: var(--muted); font-size: 13px; }
.agenda .item { display: flex; gap: 12px; padding: 11px 14px; border-top: 1px solid var(--line-soft); cursor: pointer; align-items: flex-start; }
.agenda .item:first-of-type { border-top: 0; }
.agenda .item:hover { background: var(--panel-2); }
.agenda .item .t { width: 92px; flex: none; font-variant-numeric: tabular-nums; }
.agenda .item .bar { width: 4px; align-self: stretch; border-radius: 2px; flex: none; background: var(--ev-bd); }
.agenda .item.cancelled .main b { text-decoration: line-through; }
.agenda .item.cancelled, .agenda .item.onleave { opacity: .6; }

/* ---------- 卡片 / 表格 ---------- */
.card { background: var(--panel); border-radius: var(--radius); padding: 18px; margin-bottom: 16px; box-shadow: var(--shadow); }
.card h2 { margin: 0 0 14px; font-size: 16px; font-weight: 600; }
table.list { width: 100%; border-collapse: collapse; }
table.list th, table.list td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line-soft); vertical-align: middle; }
table.list tr:last-child td { border-bottom: 0; }
table.list th { font-weight: 500; color: var(--muted); font-size: 13px; }
table.list tr.inactive td { color: var(--muted); }
table.list td.actions { text-align: right; white-space: nowrap; }
table.list td.actions .btn { margin-left: 4px; }
.table-scroll { overflow-x: auto; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.inline-form { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.inline-form > * { flex: 1; min-width: 120px; }
.inline-form .btn { flex: none; }

/* ---------- 请假列表 ---------- */
.leave-item { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line-soft); align-items: flex-start; }
.leave-item:last-child { border-bottom: 0; }
.leave-item .bar { width: 4px; align-self: stretch; border-radius: 2px; background: var(--ev-bd); flex: none; }
.leave-item .body { flex: 1; min-width: 0; }
.leave-item .title { font-weight: 600; }
.leave-item .meta { color: var(--muted); font-size: 13px; }
.leave-item .reason { margin-top: 6px; background: var(--panel-2); padding: 7px 11px; border-radius: 10px; }
.leave-item .reply { margin-top: 4px; font-size: 13px; color: var(--muted); }
.leave-item .acts { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; flex: none; }
.empty-state { text-align: center; color: var(--muted); padding: 30px 0; }

/* ---------- 弹窗 ---------- */
.overlay { position: fixed; inset: 0; background: rgba(60, 55, 50, .35); backdrop-filter: blur(2px); display: flex; align-items: flex-start; justify-content: center; padding: 6vh 16px; z-index: 50; overflow-y: auto; }
.modal { background: var(--panel); border-radius: 20px; width: 100%; max-width: 520px; padding: 24px; box-shadow: 0 24px 60px rgba(40, 35, 30, .25); }
.modal h2 { margin: 0 0 18px; font-size: 18px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.modal .foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
.modal .foot .left { margin-right: auto; display: flex; gap: 8px; flex-wrap: wrap; }
dl.detail { display: grid; grid-template-columns: 64px 1fr; gap: 8px 12px; margin: 0; }
dl.detail dt { color: var(--muted); }
dl.detail dd { margin: 0; }
.stu-list { display: flex; flex-direction: column; gap: 6px; }
.stu-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.leave-box { margin-top: 14px; padding: 12px 14px; border-radius: 12px; background: var(--panel-2); }
.leave-box .reason { margin: 4px 0 8px; }
.leave-box .acts { display: flex; gap: 6px; flex-wrap: wrap; }
.leave-box input { margin-bottom: 8px; }
.leave-box[hidden], .btn[hidden] { display: none; }
.reason-opts { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.reason-opt { border: 1px solid var(--line); background: var(--panel); border-radius: 999px; padding: 5px 14px; cursor: pointer; }
.reason-opt:hover { border-color: var(--muted); }
.reason-opt.on { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }

.picker { border: 1px solid var(--line); border-radius: 10px; background: var(--panel); }
.picker input[type=text] { border: 0; border-bottom: 1px solid var(--line-soft); border-radius: 10px 10px 0 0; box-shadow: none; }
.picker .opts { max-height: 150px; overflow-y: auto; padding: 4px 0; }
.picker label { display: flex; gap: 8px; align-items: center; padding: 5px 12px; cursor: pointer; }
.picker label:hover { background: var(--panel-2); }
.chips { display: flex; flex-wrap: wrap; gap: 4px; padding: 7px 9px 0; }
.chip { background: var(--accent-soft); border-radius: 999px; padding: 1px 10px; font-size: 12px; }

.conflicts { background: var(--danger-bg); color: var(--danger); border-radius: 12px; padding: 11px 14px; margin-top: 4px; font-size: 13px; }
.conflicts ul { margin: 6px 0 0; padding-left: 18px; }
.conflicts li { margin-bottom: 4px; }
.checkok { background: var(--ok-bg); color: var(--ok); border-radius: 12px; padding: 9px 14px; margin-top: 4px; font-size: 13px; }

.toast { position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%); background: #4a4541; color: #faf8f5; padding: 10px 20px; border-radius: 999px; z-index: 100; box-shadow: 0 8px 24px rgba(0,0,0,.2); }

@media (max-width: 760px) {
  .topbar { flex-wrap: wrap; gap: 8px; padding: 10px 16px; }
  .nav { order: 3; flex-basis: 100%; overflow-x: auto; }
  .who .name { display: none; }
  main { padding: 14px 16px 48px; }
  .grid2 { grid-template-columns: 1fr; }
  .toolbar .range { flex-basis: 100%; order: -1; margin: 0 0 4px; }
  .toolbar select { max-width: none; flex: 1; }
  .hide-sm { display: none; }
  .week { min-width: 640px; }
  .leave-item { flex-wrap: wrap; }
  .leave-item .acts { flex-direction: row; width: 100%; justify-content: flex-end; }
}