:root {
  --bg: #F3F6FA; --surface: #FFFFFF; --ink: #1F3A5F; --muted: #5F7189; --line: #DDE4EE;
  --green: #33A852; --teal: #0EA2A7; --red: #D61F4C; --orange: #E8870E; --slate: #4D6382;
  --soft-green: #E7F6EC; --soft-red: #FBE6EC; --soft-orange: #FDF1E1;
  --bar-before: #C9D4E3;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F1724; --surface: #18233A; --ink: #E8EEF7; --muted: #9AABC3; --line: #2A3854;
    --soft-green: #17352A; --soft-red: #3A1C28; --soft-orange: #3A2A15; --bar-before: #34445F;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
[hidden] { display: none !important; }
h1, h2, h3 { margin: 0 0 6px; line-height: 1.2; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.error { color: var(--red); min-height: 1.2em; margin: 4px 0; }

.btn { border: 0; border-radius: 8px; padding: 10px 16px; font: inherit; font-weight: 600; cursor: pointer; background: var(--slate); color: #fff; }
.btn.primary, .btn.approve { background: var(--green); }
.btn.decline { background: var(--red); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.small { padding: 6px 10px; font-size: 13px; }
.btn.wide { width: 100%; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }

/* sign in */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(400px, 100%); display: grid; gap: 12px; }
.login-icon { width: 56px; height: 56px; }
.login-card label { display: grid; gap: 4px; font-weight: 600; font-size: 14px; }
input, textarea { font: inherit; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); width: 100%; }
input:focus, textarea:focus { outline: 2px solid var(--teal); outline-offset: 1px; }

/* frame */
.top { position: sticky; top: 0; z-index: 5; background: var(--ink); color: #fff; display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; padding: 10px 16px; align-items: center; }
@media (prefers-color-scheme: dark) { .top { background: #111B2E; border-bottom: 1px solid var(--line); } }
.brand { display: flex; gap: 10px; align-items: center; min-width: 0; }
.logo { width: 34px; height: 34px; flex: none; }
.company { font-weight: 700; font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fresh { font-size: 12px; opacity: .85; }
.fresh.stale { color: #FFC56B; opacity: 1; font-weight: 600; }
.me { display: flex; gap: 10px; align-items: center; justify-self: end; }
.me .muted { color: #C9D4E3; font-size: 13px; }
.me .btn.ghost { color: #fff; border-color: rgba(255,255,255,.35); }
.tabs { grid-column: 1 / -1; display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar, .periods::-webkit-scrollbar { display: none; }
.tab { background: transparent; color: #C9D4E3; border: 0; padding: 8px 12px; border-radius: 8px; font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; }
.tab.active { background: rgba(255,255,255,.14); color: #fff; }
.badge { display: inline-block; min-width: 20px; padding: 0 6px; border-radius: 10px; background: var(--orange); color: #fff; font-size: 12px; text-align: center; }
@media (min-width: 900px) {
  .top { grid-template-columns: auto 1fr auto; }
  .tabs { grid-column: auto; justify-content: center; }
}
main { padding: 16px; max-width: 1200px; margin: 0 auto; }
.page { display: grid; gap: 16px; }

/* dashboard */
.periods { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 2px; scrollbar-width: none; }
.chip { border: 1px solid var(--line); background: var(--surface); color: var(--ink); border-radius: 18px; padding: 6px 12px; font: inherit; font-size: 14px; cursor: pointer; white-space: nowrap; }
.chip.active { background: var(--ink); color: var(--surface); border-color: var(--ink); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(165px, 1fr)); gap: 10px; }
.stat .label { font-size: 13px; color: var(--muted); }
.stat .value { font-size: 22px; font-weight: 700; margin: 2px 0; white-space: nowrap; }
.stat .change { font-size: 12px; font-weight: 600; }
.up { color: var(--green); } .down { color: var(--red); }
.panels { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .panels { grid-template-columns: 1fr 1fr; } }
.panel h2 { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.chart { width: 100%; height: 190px; display: block; }
.chart text { fill: var(--muted); font-size: 10px; }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: -1px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12px; padding: 6px 4px; border-bottom: 1px solid var(--line); }
td { padding: 8px 4px; border-bottom: 1px solid var(--line); vertical-align: top; }
td.num, th.num { text-align: right; white-space: nowrap; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; background: var(--muted); }
.dot.on { background: var(--green); } .dot.off { background: var(--red); }
.level { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; margin-top: 4px; }
.level > i { display: block; height: 100%; background: var(--orange); }
.empty { color: var(--muted); padding: 24px 8px; text-align: center; }

/* approvals */
.ask { display: grid; gap: 10px; border-left: 4px solid var(--orange); }
.ask.done { border-left-color: var(--green); }
.ask.failed { border-left-color: var(--red); }
.ask .head { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.ask .what { font-size: 17px; font-weight: 700; }
.ask .actions { display: flex; gap: 8px; flex-wrap: wrap; }
.ask .actions .btn { flex: 1 1 120px; }
.countdown { font-weight: 700; color: var(--orange); white-space: nowrap; }
.countdown.late { color: var(--red); }
.lines { font-size: 13px; }
.note { font-size: 13px; color: var(--muted); }
.result { font-size: 13px; padding: 8px 10px; border-radius: 8px; }
.result.ok { background: var(--soft-green); }
.result.bad { background: var(--soft-red); }
.result.wait { background: var(--soft-orange); }
.banner { padding: 10px 12px; border-radius: 8px; background: var(--soft-orange); font-size: 14px; }

/* attention */
.item { display: flex; gap: 10px; align-items: flex-start; }
.item .sev { width: 10px; height: 10px; border-radius: 50%; background: var(--orange); margin-top: 6px; flex: none; }
.item.serious .sev { background: var(--red); }
.item .branch { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }

.dialog { border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); width: min(440px, calc(100% - 32px)); padding: 18px; }
.dialog::backdrop { background: rgba(10, 20, 35, .5); }
.dialog-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 12px; }