/* Wattklar – ein Stylesheet, keine externen Schriften, kein Tracking */
:root {
  --bg: #f7f7f4;
  --card: #ffffff;
  --ink: #15201d;
  --ink-2: #44514d;
  --ink-3: #6b7774;
  --line: #e3e6e2;
  --brand: #0f6b5c;
  --brand-2: #0b5247;
  --brand-soft: #e7f3ef;
  --sun: #f2a516;
  --sun-soft: #fff5df;
  --cta: #d9480f;
  --cta-2: #b83c0c;
  --warn-soft: #fff4f0;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 20, .05), 0 4px 16px rgba(16, 24, 20, .04);
  --max: 1080px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--brand); text-underline-offset: 2px; }
a:hover { color: var(--brand-2); }
img { max-width: 100%; height: auto; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.top { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.top-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; font-size: 20px; color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.brand-dot { width: 22px; height: 22px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #ffd36b, var(--sun) 60%, #e08a00); box-shadow: 0 0 0 3px var(--sun-soft); }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: 14.5px; font-weight: 600; padding: 6px 10px; border-radius: 8px; }
.nav a:hover, .nav a[aria-current="page"] { background: var(--brand-soft); color: var(--brand-2); }

/* Typo */
h1 { font-size: clamp(28px, 4vw, 40px); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 12px; }
h2 { font-size: clamp(21px, 2.6vw, 26px); line-height: 1.25; letter-spacing: -.01em; margin: 34px 0 12px; }
h3 { font-size: 18px; line-height: 1.3; margin: 24px 0 8px; }
p { margin: 0 0 14px; }
.lead { font-size: 18px; color: var(--ink-2); max-width: 760px; }
.muted { color: var(--ink-3); }
.small { font-size: 14px; }
.crumbs { font-size: 13.5px; color: var(--ink-3); margin: 22px 0 10px; }
.crumbs a { color: var(--ink-3); }
.page-head { padding: 6px 0 10px; }
.meta-line { font-size: 13.5px; color: var(--ink-3); margin-bottom: 14px; }

/* Layout */
main { padding-bottom: 40px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.article { max-width: 760px; }
.article .card { margin: 18px 0; }
@media (max-width: 880px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* Tool tiles */
.tile { display: block; text-decoration: none; color: inherit; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); transition: transform .12s, border-color .12s; }
.tile:hover { transform: translateY(-2px); border-color: var(--brand); color: inherit; }
.tile strong { display: block; font-size: 17px; margin-bottom: 4px; }
.tile span { color: var(--ink-2); font-size: 14.5px; }
.tile .tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--brand-2); background: var(--brand-soft); padding: 2px 8px; border-radius: 99px; margin-bottom: 8px; }

/* Calculator */
.calc { display: grid; grid-template-columns: 1.05fr 1fr; gap: 18px; align-items: start; margin: 18px 0 8px; }
@media (max-width: 880px) { .calc { grid-template-columns: 1fr; } }
.field { margin-bottom: 16px; }
.field label, .field .label { display: flex; justify-content: space-between; gap: 10px; font-weight: 650; font-size: 14.5px; margin-bottom: 6px; }
.field output, .field .val { font-weight: 700; color: var(--brand-2); white-space: nowrap; }
.field .hint { font-size: 13px; color: var(--ink-3); margin-top: 4px; }
input[type="range"] { width: 100%; accent-color: var(--brand); }
select, input[type="number"] {
  width: 100%; font: inherit; font-size: 15px; padding: 9px 11px; border: 1px solid #cfd5d1; border-radius: 10px; background: #fff; color: var(--ink);
}
select:focus, input:focus { outline: 2px solid var(--brand); outline-offset: 1px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; margin: 8px 0; cursor: pointer; }
.check input { margin-top: 4px; accent-color: var(--brand); width: 17px; height: 17px; flex: none; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
details.more { margin-top: 6px; border-top: 1px dashed var(--line); padding-top: 10px; }
details.more summary { cursor: pointer; font-weight: 650; font-size: 14.5px; color: var(--brand-2); }

.result-big { background: var(--brand-soft); border: 1px solid #c8e3da; border-radius: 12px; padding: 16px 18px; margin-bottom: 12px; }
.result-big .k { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--brand-2); }
.result-big .v { font-size: clamp(30px, 4.4vw, 40px); font-weight: 800; letter-spacing: -.02em; color: var(--brand-2); line-height: 1.15; }
.result-big .s { font-size: 14px; color: var(--ink-2); }
.rows { margin: 6px 0 14px; }
.rows div { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.rows div span:first-child { color: var(--ink-2); }
.rows div span:last-child { font-weight: 700; text-align: right; }
.verdict { border-radius: 10px; padding: 12px 14px; font-size: 14.5px; margin: 10px 0 14px; background: var(--sun-soft); border: 1px solid #f6dca3; }
.verdict.good { background: #ecf8f0; border-color: #bfe5cc; }
.verdict.bad { background: var(--warn-soft); border-color: #f5cdbd; }

/* Monthly bars */
.bars { display: grid; grid-template-columns: repeat(12, 1fr); gap: 4px; align-items: end; height: 110px; margin: 8px 0 2px; }
.bars div { background: var(--sun); border-radius: 4px 4px 0 0; min-height: 2px; position: relative; }
.bars-x { display: grid; grid-template-columns: repeat(12, 1fr); gap: 4px; font-size: 11px; color: var(--ink-3); text-align: center; }

/* CTA */
.cta { display: block; text-align: center; text-decoration: none; font-weight: 750; font-size: 16px; padding: 13px 16px; border-radius: 11px; background: var(--cta); color: #fff; box-shadow: 0 2px 0 var(--cta-2); }
.cta:hover { background: var(--cta-2); color: #fff; }
.cta-2 { display: block; text-align: center; text-decoration: none; font-weight: 650; font-size: 15px; padding: 11px 14px; border-radius: 11px; border: 1.5px solid var(--brand); color: var(--brand-2); margin-top: 8px; background: #fff; }
.cta-2:hover { background: var(--brand-soft); }
.ad-note { font-size: 12.5px; color: var(--ink-3); margin-top: 8px; text-align: center; }
.cta-box { background: var(--card); border: 1.5px solid var(--sun); border-radius: var(--radius); padding: 18px 20px; margin: 22px 0; box-shadow: var(--shadow); }
.cta-box h3 { margin-top: 0; }
.cta-box ul { margin: 6px 0 14px; padding-left: 20px; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 10px 0 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { padding: 9px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: #f2f4f1; font-weight: 700; white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
th button { font: inherit; font-weight: 700; background: none; border: 0; padding: 0; cursor: pointer; color: inherit; }

/* Boxes */
.box { border-left: 4px solid var(--brand); background: var(--card); padding: 12px 16px; border-radius: 0 10px 10px 0; margin: 16px 0; }
.box.warn { border-color: var(--sun); background: var(--sun-soft); }
.keyfacts { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; margin: 16px 0; }
.keyfacts ul { margin: 0; padding-left: 20px; }
.keyfacts li { margin: 4px 0; }
ol.steps { padding-left: 22px; }
ol.steps li { margin: 8px 0; }
.faq h3 { font-size: 17px; margin-top: 18px; }
.links { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.links a { background: var(--card); border: 1px solid var(--line); padding: 6px 12px; border-radius: 99px; text-decoration: none; font-size: 14px; color: var(--ink-2); }
.links a:hover { border-color: var(--brand); color: var(--brand-2); }

/* Hero */
.hero { padding: 34px 0 10px; }
.hero h1 { max-width: 780px; }
.trust { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 14px; color: var(--ink-2); margin: 10px 0 24px; }
.trust span::before { content: "✓ "; color: var(--brand); font-weight: 800; }

/* Footer */
.foot { border-top: 1px solid var(--line); margin-top: 40px; padding: 26px 0 40px; font-size: 14px; color: var(--ink-3); }
.foot p { margin-bottom: 10px; }
.foot-links { display: flex; gap: 16px; flex-wrap: wrap; }
.foot-links a { color: var(--ink-2); }

/* Mobil: Header nicht kleben lassen, Navigation einzeilig scrollbar, Formularzeilen untereinander */
@media (max-width: 640px) {
  .top { position: static; }
  .top-inner { flex-wrap: nowrap; gap: 10px; min-height: 54px; }
  .nav { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { white-space: nowrap; padding: 6px 8px; }
  .row-2 { grid-template-columns: 1fr; gap: 0; }
  .card { padding: 18px 16px; }
  .lead { font-size: 16.5px; }
}