/* Layout: eine Spalte, oben Erfassung + Kennzahlen, darunter Verlauf, Details klappbar.
   Strom = Bernstein, Gas = Flammenblau; Neutraltöne leicht kühl. Keine externen Schriften (Datenschutz). */
:root {
  /* festes dunkles Design */
  --bg: #0d1117;
  --surface: #151b23;
  --surface-2: #1c232d;
  --ink: #e6ebf0;
  --muted: #8f9cab;
  --line: #29333f;
  --strom: #f2b538;
  --strom-soft: #4a3912;
  --gas: #6c9dff;
  --gas-soft: #1c2d52;
  --good: #4cc27f;
  --good-soft: #15352a;
  --warn: #f2b538;
  --warn-soft: #3b2f15;
  --bad: #ff7a63;
  --bad-soft: #42201b;
  --temp: #ff8a70;
  --on-accent: #10151b;
  --accent: var(--strom);
  --accent-soft: var(--strom-soft);
  --radius: 10px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Roboto Mono", Menlo, Consolas, monospace;
  color-scheme: dark;
}
body.gas { --accent: var(--gas); --accent-soft: var(--gas-soft); }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 var(--font);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.num, td.num, .kpi .value { font-variant-numeric: tabular-nums; }
h1, h2, h3 { line-height: 1.2; text-wrap: balance; margin: 0; }
h2 { font-size: 1.05rem; font-weight: 650; }
h3 { font-size: .95rem; font-weight: 650; }
a { color: var(--accent); }
code { font-family: var(--mono); font-size: .9em; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.boot { padding: 40px 16px; color: var(--muted); }

/* Kopfzeile */
.top {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top, 0px);
}
.top-inner, .wrap {
  max-width: 1080px; margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.top-inner { display: flex; align-items: center; gap: 16px; min-height: 56px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .01em; }
.brand svg { width: 26px; height: 26px; }
.tabs { display: flex; gap: 4px; margin-left: auto; }
.tab {
  appearance: none; border: 1px solid transparent; background: none; color: var(--muted);
  font: inherit; font-weight: 600; padding: 7px 14px; border-radius: 999px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 7px;
}
.tab:hover { color: var(--ink); background: var(--surface-2); }
.tab[aria-selected="true"] { color: var(--ink); background: var(--surface); border-color: var(--line); }
.tab .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.tab.t-strom .dot { background: var(--strom); }
.tab.t-gas .dot { background: var(--gas); }
@media (max-width: 560px) {
  .tabs { margin-left: 0; width: 100%; padding-bottom: 8px; }
  .tab { flex: 1; justify-content: center; padding: 7px 8px; }
}

.wrap { padding-block: 20px 48px; display: grid; gap: 18px; }

/* Karten */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; min-width: 0; }
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 18px; }
.grid2 > * { min-width: 0; }

/* Erfassung */
.entry { display: grid; grid-template-columns: 1fr; gap: 12px; border-top: 3px solid var(--accent); }
.entry form { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.entry label { flex: 1 1 160px; }
.entry label.note { flex: 2 1 200px; }
.entry .last { color: var(--muted); font-size: .9rem; }
.entry .last strong { color: var(--ink); font-variant-numeric: tabular-nums; }

label { display: grid; gap: 4px; align-content: end; font-size: .82rem; font-weight: 600; color: var(--muted); }
label.check { display: flex; align-items: center; gap: 8px; font-weight: 500; color: var(--ink); font-size: .9rem; }
input, select {
  font: inherit; font-size: 1rem; color: var(--ink); background: var(--surface-2);
  border: 1px solid var(--line); border-radius: 8px; padding: 9px 11px; width: 100%; min-width: 0;
}
input:focus-visible, select:focus-visible, .btn:focus-visible, .tab:focus-visible, summary:focus-visible, .icon-btn:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
input.big { font-size: 1.25rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.btn {
  appearance: none; font: inherit; font-weight: 650; border-radius: 8px; padding: 10px 16px; cursor: pointer;
  border: 1px solid var(--line); background: var(--surface-2); color: var(--ink); text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
}
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { filter: brightness(1.06); }
.btn.danger { color: var(--bad); }
.btn:disabled { opacity: .6; cursor: progress; }
.icon-btn { appearance: none; border: 0; background: none; color: var(--muted); cursor: pointer; padding: 4px 6px; border-radius: 6px; font: inherit; }
.icon-btn:hover { color: var(--ink); background: var(--surface-2); }

/* Kennzahlen */
.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.kpi { background: var(--surface); padding: 16px 18px; display: grid; gap: 4px; align-content: start; min-width: 0; }
.kpi .label { font-size: .78rem; font-weight: 650; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.kpi .value { font-size: 1.6rem; font-weight: 700; letter-spacing: -.01em; line-height: 1.15; overflow-wrap: anywhere; }
.kpi .value small { font-size: .9rem; font-weight: 600; color: var(--muted); margin-left: 3px; }
.kpi .sub { font-size: .85rem; color: var(--muted); }
.kpi .value.good { color: var(--good); }
.kpi .value.bad { color: var(--bad); }
@media (max-width: 860px) { .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 420px) { .kpi .value { font-size: 1.35rem; } }

.pills { display: flex; gap: 8px; flex-wrap: wrap; }
.pill { display: inline-flex; align-items: center; gap: 6px; font-size: .8rem; font-weight: 600; padding: 3px 10px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--line); color: var(--muted); }
.pill.good { background: var(--good-soft); color: var(--good); border-color: transparent; }
.pill.warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.pill.bad { background: var(--bad-soft); color: var(--bad); border-color: transparent; }
.pill.accent { background: var(--accent-soft); color: var(--ink); border-color: transparent; }

.notice { padding: 10px 14px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--line); margin: 0; }
.notice.good { background: var(--good-soft); border-color: transparent; }
.notice.bad { background: var(--bad-soft); border-color: transparent; }
.notice.warn { background: var(--warn-soft); border-color: transparent; }

/* Fortschritt Abrechnungsjahr */
.progress { display: grid; gap: 10px; }
.bar { display: flex; height: 18px; border-radius: 5px; overflow: hidden; background: var(--surface-2); border: 1px solid var(--line); }
.bar span { display: block; height: 100%; }
.seg-meas { background: var(--accent); }
.seg-est { background: color-mix(in srgb, var(--accent) 55%, var(--surface)); }
.seg-fc { background: repeating-linear-gradient(135deg, var(--accent-soft) 0 6px, transparent 6px 10px); }
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: .85rem; color: var(--muted); }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -1px; margin-right: 6px; border: 1px solid var(--line); }
.legend b { color: var(--ink); font-variant-numeric: tabular-nums; font-weight: 650; }

/* Diagramm */
.chart { width: 100%; overflow-x: auto; }
.chart svg { display: block; width: 100%; min-width: 560px; height: auto; }
.chart text { fill: var(--muted); font: 11px var(--font); }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .b-meas { fill: var(--accent); }
.chart .b-est { fill: color-mix(in srgb, var(--accent) 50%, var(--surface)); }
.chart .b-fc { fill: url(#hatch); stroke: color-mix(in srgb, var(--accent) 60%, transparent); stroke-width: 1; }
.chart .hatch-line { stroke: color-mix(in srgb, var(--accent) 70%, transparent); stroke-width: 2; }
.chart .period { fill: var(--accent-soft); opacity: .35; }
.chart .tline { fill: none; stroke: var(--temp); stroke-width: 2; }
.chart .tdot { fill: var(--surface); stroke: var(--temp); stroke-width: 2; }
.chart .tlabel { fill: var(--temp); }
.chart .val { fill: var(--ink); font-weight: 600; font-size: 10.5px; }

/* Modell */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px 18px; margin: 0; }
.facts div { display: grid; gap: 2px; min-width: 0; }
.facts dt { font-size: .78rem; color: var(--muted); font-weight: 600; }
.facts dd { margin: 0; font-weight: 650; font-variant-numeric: tabular-nums; }
.explain { font-size: .9rem; color: var(--muted); max-width: 70ch; margin: 12px 0 0; }

/* Tabelle */
.table-wrap { overflow-x: auto; margin: 0 -18px; padding: 0 18px; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 650; }
td.num, th.num { text-align: right; }
tr.warn td { background: var(--warn-soft); }
td .w { color: var(--bad); font-size: .8rem; white-space: normal; }
td.note { white-space: normal; min-width: 120px; color: var(--muted); }

/* Klappbereiche */
details.card { padding: 0; }
details.card > summary {
  list-style: none; cursor: pointer; padding: 16px 18px; display: flex; justify-content: space-between; gap: 12px; align-items: baseline; flex-wrap: wrap;
}
details.card > summary::-webkit-details-marker { display: none; }
details.card > summary::after { content: "▾"; color: var(--muted); margin-left: auto; transition: transform .15s; }
details.card[open] > summary::after { transform: rotate(180deg); }
details.card > .body { padding: 0 18px 18px; display: grid; gap: 16px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px 14px; }
.form-grid h3 { grid-column: 1 / -1; margin-top: 6px; color: var(--ink); }
.unit { font-weight: 500; color: var(--muted); }
.actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

.compare { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.compare .box { background: var(--surface-2); border-radius: 8px; padding: 12px 14px; display: grid; gap: 2px; }
.compare .box span { font-size: .78rem; color: var(--muted); font-weight: 600; }
.compare .box strong { font-size: 1.15rem; font-variant-numeric: tabular-nums; }
.compare .box strong.good { color: var(--good); }
.compare .box strong.bad { color: var(--bad); }

.results { display: grid; gap: 6px; }
.results button { text-align: left; justify-content: flex-start; }

.toast {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 8px; font-weight: 600; z-index: 20;
  max-width: calc(100% - 32px);
}
.toast.bad { background: var(--bad); color: #fff; }

/* Login */
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: grid; gap: 14px; }
.login-card h1 { font-size: 1.4rem; }
.login-card p { margin: 0; }
.stack { display: grid; gap: 12px; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* Ergänzungen */
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); margin-right: 8px; vertical-align: 1px; }
.s-strom .dot, .seg-strom .dot, .d-strom { background: var(--strom); }
.s-gas .dot, .seg-gas .dot, .d-gas { background: var(--gas); }
.summary { border-top: 3px solid var(--strom); }
.summary.s-gas { border-top-color: var(--gas); }
dd.good { color: var(--good); }
dd.bad { color: var(--bad); }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; background: var(--surface-2); }
.seg button { appearance: none; border: 0; background: none; font: inherit; font-weight: 650; color: var(--muted); padding: 6px 14px; border-radius: 999px; cursor: pointer; display: inline-flex; align-items: center; }
.seg button[aria-checked="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px rgb(0 0 0 / .5); }
.deadlines { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.deadlines li { display: grid; grid-template-columns: auto 1fr auto auto; gap: 10px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); }
.deadlines li:last-child { border-bottom: 0; }
.deadlines .dot { margin: 0; }
@media (max-width: 480px) { .deadlines li { grid-template-columns: auto 1fr auto; } .deadlines li .pill { grid-column: 2 / -1; justify-self: start; } }
.copy { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.copy code { background: var(--surface-2); border: 1px solid var(--line); border-radius: 6px; padding: 8px 10px; overflow-wrap: anywhere; flex: 1 1 260px; min-width: 0; }
details.sub { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 12px; }
details.sub > summary { cursor: pointer; font-weight: 650; }
.compare .box small { font-size: .8rem; }
.legend i.sw-period { background: var(--accent-soft); }
.legend i.sw-dash { background: repeating-linear-gradient(90deg, var(--muted) 0 4px, transparent 4px 7px); height: 3px; border: 0; vertical-align: 3px; }
.icon-btn.danger { color: var(--bad); }
.icon-btn.confirm { background: var(--bad); color: #fff; }
body.busy { cursor: progress; }
body.busy .btn.primary { opacity: .7; }
.entry .card-head { margin-bottom: 0; }
.entry input { height: 46px; padding-block: 0; }