:root {
  --ground: #f4f5f2;
  --card: #ffffff;
  --ink: #1b2421;
  --muted: #56605b;
  --line: #dde0da;
  --line-soft: #eceee9;
  --field: #c9cec6;
  --accent: #1f5fae;
  --accent-ink: #123b6b;
  --accent-soft: #eaf1fa;
  --accent-line: #a9c6ea;
  --bar: #2a78d6;
  --warn-soft: #fbf3e2;
  --warn-line: #e3c27a;
  --warn-ink: #5c3d00;
  --warn-strong: #8a5a00;
  --gap-fill: #fbefd5;
  --gap-line: #b07400;
  --ok: #1e6b3a;
  --error: #a12a2a;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: var(--accent); }
a:hover { color: #174a88; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }

header.top { background: var(--card); border-bottom: 1px solid var(--line); }
.top-inner {
  max-width: 1120px; margin: 0 auto; padding: 12px 24px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 17px; color: var(--ink); text-decoration: none; }
.brand svg { color: var(--accent); }
nav.main { display: flex; flex-wrap: wrap; gap: 4px; font-size: 14px; }
nav.main a { padding: 10px 12px; border-radius: 8px; text-decoration: none; color: #3e4743; }
nav.main a.on { background: var(--accent-soft); color: var(--accent-ink); font-weight: 500; }
.who { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: 14px; color: var(--muted); }

main { max-width: 1120px; margin: 0 auto; padding: 24px 24px 48px; display: flex; flex-direction: column; gap: 20px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 44px; padding: 0 16px; border: 1px solid var(--field); border-radius: 8px;
  background: var(--card); color: var(--ink); font: inherit; font-size: 14px; text-decoration: none; cursor: pointer;
}
.btn:hover { border-color: #9aa198; color: var(--ink); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-size: 16px; font-weight: 500; }
.btn.primary:hover { background: #174a88; color: #fff; }
.btn.icon { width: 44px; padding: 0; }

.notice { display: flex; gap: 14px; border-radius: 12px; padding: 14px 20px; font-size: 14px; }
.notice svg { flex: none; margin-top: 2px; }
.notice strong { display: block; font-size: 15px; margin-bottom: 2px; }
.notice.info { background: var(--accent-soft); border: 1px solid var(--accent-line); color: var(--accent-ink); }
.notice.warn { background: var(--warn-soft); border: 1px solid var(--warn-line); color: var(--warn-ink); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.card, .panel { background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.card { padding: 16px 20px; }
.card .label { font-size: 13px; color: var(--muted); }
.card .value { font-family: var(--mono); font-size: 24px; font-weight: 500; margin-top: 4px; }
.card .value small { font-size: 14px; color: var(--muted); font-weight: 400; }
.card .sub { font-size: 12px; color: var(--muted); margin-top: 4px; }
.card .ref { font-size: 12px; margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--line-soft); }

.panel { padding: 20px 22px; display: flex; flex-direction: column; gap: 14px; }
.panel h1, .panel h2 { margin: 0; font-size: 19px; font-weight: 600; }

.toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.tabs { display: flex; border: 1px solid var(--field); border-radius: 8px; overflow: hidden; }
.tabs a {
  min-height: 44px; min-width: 76px; padding: 0 18px; display: flex; align-items: center; justify-content: center;
  text-decoration: none; color: var(--ink); font-size: 14px; font-weight: 500; background: var(--card);
}
.tabs a.on { background: var(--accent); color: #fff; }
.nav-period { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.nav-period .title { min-width: 150px; text-align: center; font-weight: 600; font-size: 16px; }
.btn.disabled { opacity: .4; pointer-events: none; }
.meter-pick { display: flex; flex-wrap: wrap; gap: 6px; }
.meter-pick a { padding: 8px 12px; border: 1px solid var(--field); border-radius: 8px; text-decoration: none; color: var(--ink); font-size: 14px; }
.meter-pick a.on { background: var(--accent-soft); border-color: var(--accent-line); color: var(--accent-ink); font-weight: 500; }

.legend { display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend .total { margin-left: auto; color: var(--ink); }
.sw { width: 12px; height: 12px; border-radius: 3px; background: var(--bar); display: inline-block; }
.sw.gap { background: var(--gap-fill); border: 1.5px dashed var(--gap-line); }

.chart { display: flex; gap: 10px; }
.yaxis { display: flex; flex-direction: column; justify-content: space-between; height: 220px; min-width: 52px; font-family: var(--mono); font-size: 11px; color: var(--muted); text-align: right; }
.plot { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.bars {
  height: 220px; display: flex; align-items: flex-end; gap: 3px; border-bottom: 1px solid #b9bfb5;
  background: linear-gradient(var(--line-soft) 1px, transparent 1px) 0 0 / 100% 110px;
}
.bars .bar {
  flex: 1; min-width: 0; height: 100%; position: relative;
  display: flex; flex-direction: column; justify-content: flex-end; outline: none; cursor: default;
}
.bars .bar i { display: block; width: 100%; flex: none; background: var(--bar); }
.bars .bar i:first-child { border-radius: 4px 4px 0 0; }
.bars .bar i.est { background: var(--gap-fill); border: 1.5px dashed var(--gap-line); border-bottom: 0; }
.bars .bar:hover i:not(.est), .bars .bar:focus i:not(.est) { background: #1f5fae; }
.bars .bar:hover, .bars .bar:focus-visible { background-color: rgba(31, 95, 174, .06); }
.bars .bar::after {
  content: attr(data-tip); position: absolute; bottom: calc(100% + 6px); left: 50%; transform: translateX(-50%);
  z-index: 5; width: max-content; max-width: 240px; padding: 6px 10px; border-radius: 6px;
  background: var(--ink); color: #fff; font-size: 12px; line-height: 1.4; white-space: normal; text-align: left;
  pointer-events: none; opacity: 0;
}
.bars .bar.tip-left::after { left: 0; transform: none; }
.bars .bar.tip-right::after { left: auto; right: 0; transform: none; }
.bars .bar:hover::after, .bars .bar:focus::after { opacity: 1; }
.chart { padding-top: 44px; margin-top: -44px; }
.sub.est { color: var(--warn-strong); }
.gap-item { display: grid; gap: 4px; padding-top: 6px; }
.gap-item + .gap-item { border-top: 1px solid var(--warn-line); padding-top: 10px; }
.gap-figures { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.bars .bar.missing { background: repeating-linear-gradient(135deg, transparent 0 4px, var(--line-soft) 4px 8px); }
.xaxis { display: flex; gap: 3px; font-size: 11px; color: var(--muted); }
.xaxis span { flex: 1; min-width: 0; text-align: center; white-space: nowrap; overflow: visible; }

.gaps { display: grid; gap: 6px; font-size: 14px; }

.layout { display: flex; flex-wrap: wrap; gap: 24px; align-items: flex-start; }
.layout > .form { flex: 1 1 320px; }
.layout > .list { flex: 999 1 560px; min-width: 0; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 14px; color: #3e4743; }
.field input, .field select {
  min-height: 44px; padding: 0 12px; border: 1px solid var(--field); border-radius: 8px;
  background: var(--card); color: var(--ink); font: inherit; font-size: 16px; min-width: 0;
}
.field input:focus, .field select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.row2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.msg { font-size: 14px; }
.msg.error { color: var(--error); }
.msg.ok { color: var(--ok); }
.msg.warn { background: var(--warn-soft); border: 1px solid var(--warn-line); border-radius: 8px; padding: 10px 12px; color: var(--warn-ink); }

.scroll { overflow-x: auto; }
table { width: 100%; min-width: 640px; border-collapse: collapse; font-size: 14px; }
th { text-align: left; color: var(--muted); font-size: 13px; font-weight: 500; padding: 8px 10px; border-bottom: 1px solid var(--line); }
td { padding: 10px; border-bottom: 1px solid var(--line-soft); }
td.num, th.num { text-align: right; font-family: var(--mono); white-space: nowrap; }
td.dev-warn { color: var(--warn-strong); }
td.dev-ok { color: var(--ok); }
td form { margin: 0; }

.login-wrap { min-height: 100vh; display: flex; align-items: flex-start; justify-content: center; padding: 64px 20px 32px; }
.login { width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: 24px; }
.login form { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px 20px; display: flex; flex-direction: column; gap: 16px; }
.login h1 { margin: 0; font-size: 22px; font-weight: 600; }
.small { font-size: 13px; color: var(--muted); line-height: 1.5; }

@media (max-width: 640px) {
  main { padding: 16px 16px 40px; }
  .top-inner { padding: 10px 16px; }
  .legend .total { margin-left: 0; width: 100%; }
  .yaxis { min-width: 40px; }
}