/* Control center (control.mandarinlearning.tw). Same palette as the site. */
:root {
  --blue: #1E55B0; --blue-d: #163F86; --blue-l: #EAF1FB; --yolk: #F2B420; --yolk-l: #FFF4D6; --yolk-ink: #3A2900;
  --ink: #122036; --sub: #3D4C64; --mute: #5A6880; --line: #DDE5F0; --bg: #F4F7FC; --card: #FFFFFF;
  --ok: #1B7A45; --ok-l: #E3F4EA; --warn: #9A5B00; --warn-l: #FFF1D9; --bad: #B3261E; --bad-l: #FCE8E6;
  --f-head: 'Outfit', 'Noto Sans TC', system-ui, sans-serif;
  --f-body: 'DM Sans', 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', system-ui, sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--f-body); }
a { color: var(--blue); }
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.muted { color: var(--mute); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 24px max(16px, env(safe-area-inset-right, 0px)) 64px max(16px, env(safe-area-inset-left, 0px)); }

/* top bar */
.top { position: sticky; top: 0; z-index: 10; background: #fff; border-bottom: 1px solid var(--line); }
.top-in { max-width: 1120px; margin: 0 auto; padding: 10px max(16px, env(safe-area-inset-right, 0px)) 10px max(16px, env(safe-area-inset-left, 0px)); display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font: 700 19px/1 var(--f-head); }
.tabs { display: flex; gap: 4px; flex: 1; overflow-x: auto; }
.tabs a { padding: 8px 14px; border-radius: 10px; text-decoration: none; color: var(--sub); font-weight: 700; white-space: nowrap; }
.tabs a:hover { background: var(--blue-l); }
.tabs a.on { background: var(--blue); color: #fff; }
.who { display: flex; align-items: center; gap: 10px; color: var(--mute); font-size: 14px; }
@media (max-width: 720px) { .tabs { order: 3; flex-basis: 100%; } .who span { display: none; } }

/* type */
h1 { font: 800 28px/1.25 var(--f-head); margin: 0 0 4px; text-wrap: balance; }
h2 { font: 700 20px/1.3 var(--f-head); margin: 0 0 12px; }
h3 { font-size: 17px; margin: 0 0 6px; }
.lead { color: var(--sub); margin: 0 0 22px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }

/* building blocks */
.grid { display: grid; gap: 14px; }
.kpis { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin-bottom: 18px; }
.cols2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; min-width: 0; }
.kpi .lab { color: var(--mute); font-size: 14px; font-weight: 700; }
.kpi .num { font: 800 34px/1.1 var(--f-head); margin: 6px 0 2px; }
.kpi .hint { color: var(--sub); font-size: 14px; }
.kpi.alert { border-color: var(--yolk); background: var(--yolk-l); }
.section { margin-top: 22px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 12px; padding: 11px 18px; font-weight: 700; cursor: pointer; text-decoration: none; background: var(--blue); color: #fff; }
.btn:hover { background: var(--blue-d); }
.btn:disabled { opacity: .6; cursor: default; }
.btn-sec { background: var(--blue-l); color: var(--blue); }
.btn-sec:hover { background: #DCE7F8; }
.btn-ghost { border: 1px solid var(--line); background: #fff; border-radius: 10px; padding: 6px 12px; font-weight: 700; cursor: pointer; color: var(--sub); }
.btn-ghost:hover { background: var(--bg); }

.chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-size: 13px; font-weight: 700; white-space: nowrap; }
.c-ok { background: var(--ok-l); color: var(--ok); }
.c-wait { background: var(--blue-l); color: var(--blue); }
.c-warn { background: var(--warn-l); color: var(--warn); }
.c-bad { background: var(--bad-l); color: var(--bad); }
.c-off { background: #EEF1F5; color: var(--mute); }

/* login */
.login { max-width: 440px; margin: 8vh auto 0; }
.login .card { padding: 28px; }
label { display: block; font-weight: 700; margin: 0 0 6px; }
input[type=email], input[type=text], select, textarea { width: 100%; border: 1.5px solid var(--line); border-radius: 12px; padding: 11px 13px; background: #fff; }
input:focus, select:focus, textarea:focus { outline: 3px solid #B9D0F2; border-color: var(--blue); }
.msg { margin-top: 14px; padding: 12px 14px; border-radius: 12px; }
.msg.ok { background: var(--ok-l); color: var(--ok); }
.msg.err { background: var(--bad-l); color: var(--bad); }

/* workflow */
.slots { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.slot .when { display: flex; justify-content: space-between; align-items: center; gap: 8px; color: var(--mute); font-size: 14px; font-weight: 700; }
.slot .word { display: flex; align-items: baseline; gap: 12px; margin: 10px 0 2px; flex-wrap: wrap; }
.slot .zh { font: 700 40px/1.1 'Noto Sans TC', serif; }
.slot .py { color: var(--blue); font-weight: 700; font-size: 18px; }
.slot .en { color: var(--sub); margin-bottom: 10px; }
.slot .list { font-size: 14px; color: var(--sub); padding-top: 10px; border-top: 1px dashed var(--line); margin-bottom: 10px; }
.posts { display: flex; flex-wrap: wrap; gap: 6px; }
.tbl-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--mute); font-size: 13px; font-weight: 700; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px; font-size: 15px; }
.kv dt { color: var(--mute); font-weight: 700; }
.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.links { display: flex; gap: 10px; flex-wrap: wrap; }

/* bars */
.bars { display: flex; align-items: flex-end; gap: 6px; height: 120px; padding-top: 8px; }
.bars .b { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 4px; height: 100%; min-width: 0; }
.bars .v { width: 100%; max-width: 30px; background: var(--blue); border-radius: 6px 6px 2px 2px; min-height: 2px; }
.bars .v.zero { background: var(--line); }
.bars .n { font-size: 12px; color: var(--sub); font-weight: 700; }
.bars .d { font-size: 11px; color: var(--mute); }

/* tutor center */
.subtabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.subtabs button { border: 1.5px solid var(--line); background: #fff; border-radius: 999px; padding: 8px 16px; font-weight: 700; cursor: pointer; color: var(--sub); }
.subtabs button.on { border-color: var(--blue); background: var(--blue); color: #fff; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.filters select { width: auto; }
.items { display: grid; gap: 12px; }
.item-head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: flex-start; }
.item-head .name { font-weight: 700; font-size: 18px; }
.item-head .meta { color: var(--mute); font-size: 14px; }
.item details { margin-top: 10px; }
.item summary { cursor: pointer; color: var(--blue); font-weight: 700; }
.long { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--bg); border-radius: 10px; padding: 10px 12px; margin: 6px 0 10px; }
.item-actions { display: grid; grid-template-columns: 200px 1fr auto; gap: 10px; align-items: start; margin-top: 12px; }
@media (max-width: 640px) { .item-actions { grid-template-columns: 1fr; } }
.item-actions textarea { min-height: 44px; resize: vertical; }
.copy { border: 0; background: none; color: var(--blue); font-weight: 700; cursor: pointer; padding: 0 4px; }
.empty { text-align: center; padding: 36px 16px; color: var(--mute); }

/* finance */
.banner { display: flex; gap: 14px; align-items: flex-start; background: var(--yolk-l); border: 1px solid #F3D78A; color: var(--yolk-ink); border-radius: 16px; padding: 16px 18px; margin-bottom: 18px; }
.banner b { display: block; margin-bottom: 2px; }
.locked { position: relative; opacity: .72; }
.toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); background: var(--ink); color: #fff; padding: 10px 18px; border-radius: 12px; font-weight: 700; z-index: 50; max-width: calc(100% - 32px); }