/* Fördercheck Heizung – Gestaltung
   Idee: amtlich-klar wie ein Energielabel. Ruhige, kühle Fläche, eine einzige
   auffällige Form: die gestuften Förder-Pfeile im Ergebnis des Rechners. */

@font-face { font-family: "Atkinson"; src: url("/fonts/ah-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Atkinson"; src: url("/fonts/ah-400i.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Atkinson"; src: url("/fonts/ah-700.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }

:root {
  --ink: #17283b;
  --ink-soft: #46586b;
  --paper: #f3f6f7;
  --sheet: #ffffff;
  --line: #cfd8de;
  --line-strong: #9fb0bc;
  --green-1: #0a6b55;   /* Grundförderung */
  --green-2: #3e9a4f;   /* Klimabonus */
  --green-3: #9cc23f;   /* Einkommensbonus */
  --amber: #e9a72c;
  --focus: #1f6fd1;
  --error: #b42318;
  --radius-s: 6px;
  --radius-m: 10px;
  --measure: 68ch;
  --step--1: 0.889rem;
  --step-0: 1.125rem;
  --step-1: 1.333rem;
  --step-2: 1.777rem;
  --step-3: 2.369rem;
  --step-4: 3.157rem;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Atkinson", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: var(--step-0);
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  font-variant-numeric: tabular-nums;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 2px; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.01em; overflow-wrap: break-word; }
h1 { font-size: clamp(2.1rem, 5vw, var(--step-4)); }
h2 { font-size: clamp(1.6rem, 3.2vw, var(--step-3)); }
h3 { font-size: var(--step-1); }
p { margin: 0 0 1em; max-width: var(--measure); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--sheet); padding: 8px 12px; z-index: 10; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }

/* Kopf */
.site-head { background: var(--sheet); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: var(--step-1); }
.brand svg { width: 34px; height: 34px; }
.nav { display: flex; gap: 20px; flex-wrap: wrap; }
.nav a { white-space: nowrap; text-decoration: none; color: var(--ink-soft); padding: 6px 0; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; }

/* Startbereich */
.hero { padding: 48px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: start; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 0.9fr 1.1fr; gap: 56px; } }
.lede { font-size: var(--step-1); color: var(--ink-soft); max-width: 34ch; }
.facts { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 10px; }
.facts li { padding-left: 28px; position: relative; max-width: 40ch; }
.facts li::before { content: ""; position: absolute; left: 0; top: .45em; width: 14px; height: 10px; border-left: 3px solid var(--green-1); border-bottom: 3px solid var(--green-1); transform: rotate(-45deg); }
.stand { font-size: var(--step--1); color: var(--ink-soft); }

/* Rechner */
.calc { background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 24px; }
.calc h2 { font-size: var(--step-2); }
.field { margin: 0 0 18px; border: 0; padding: 0; min-width: 0; }
.field > label, .field > legend { display: block; font-weight: 700; margin-bottom: 6px; padding: 0; }
.hint { display: block; font-size: var(--step--1); color: var(--ink-soft); font-weight: 400; margin-top: 2px; }
.choices { display: flex; flex-wrap: wrap; gap: 8px; }
.choices label { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line-strong); border-radius: var(--radius-s); padding: 9px 12px; cursor: pointer; background: var(--sheet); min-height: 44px; }
.choices input { accent-color: var(--green-1); width: 18px; height: 18px; margin: 0; }
.choices label:has(input:checked) { border-color: var(--green-1); box-shadow: inset 0 0 0 1px var(--green-1); background: #eef6f2; }
input[type=text], input[type=email], input[type=tel], input[type=number], select, textarea {
  font: inherit; color: inherit; width: 100%; max-width: 28rem; padding: 10px 12px; min-height: 46px;
  border: 1px solid var(--line-strong); border-radius: var(--radius-s); background: var(--sheet);
}
textarea { max-width: 40rem; min-height: 120px; }
input.short { max-width: 10rem; }
.row2 { display: grid; gap: 0 16px; grid-template-columns: 1fr; }
@media (min-width: 620px) { .row2 { grid-template-columns: 1fr 1fr; } }

.btn { font: inherit; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 50px; padding: 12px 22px; border-radius: var(--radius-s); border: 2px solid var(--ink); background: var(--ink); color: #fff; cursor: pointer; text-decoration: none; }
.btn:hover { background: #0f1c2a; }
.btn.secondary { background: transparent; color: var(--ink); }
.btn.secondary:hover { background: #e6ecef; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 8px; }

/* Ergebnis: gestufte Förder-Pfeile wie ein Energielabel */
.result { margin-top: 24px; border-top: 1px solid var(--line); padding-top: 20px; }
.result-sum { font-size: var(--step-3); font-weight: 700; line-height: 1.1; margin: 0; }
.result-sub { color: var(--ink-soft); margin: 4px 0 16px; }
.ladder { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 6px; }
.ladder li { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 12px; }
.arrow { position: relative; color: #fff; font-weight: 700; padding: 8px 14px; min-height: 44px; display: flex; align-items: center; justify-content: space-between; gap: 8px; clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 50%, calc(100% - 18px) 100%, 0 100%); padding-right: 30px; transition: width .4s ease; min-width: 12.5rem; max-width: 100%; }
.arrow.g1 { background: var(--green-1); }
.arrow.g2 { background: var(--green-2); }
.arrow.g3 { background: var(--green-3); color: var(--ink); }
.arrow.off { background: #dfe6ea; color: var(--ink-soft); }
.ladder .pct { font-weight: 700; font-size: var(--step-1); min-width: 4ch; text-align: right; }
.ladder .why { font-size: var(--step--1); color: var(--ink-soft); grid-column: 1 / -1; margin-top: -2px; }
@media (prefers-reduced-motion: reduce) { .arrow { transition: none; } }
.notice { border-left: 4px solid var(--amber); background: #fdf6e7; padding: 12px 16px; margin: 16px 0; font-size: var(--step--1); }
.notice p { margin-bottom: .5em; }
.notice p:last-child { margin-bottom: 0; }
details { margin: 12px 0; }
summary { cursor: pointer; font-weight: 700; }

/* Abschnitte */
.band { padding: 56px 0; border-top: 1px solid var(--line); }
.band.white { background: var(--sheet); }
.steps { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 28px; counter-reset: s; }
@media (min-width: 820px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { counter-increment: s; border-top: 3px solid var(--ink); padding-top: 14px; }
.steps li::before { content: counter(s); font-weight: 700; font-size: var(--step-2); display: block; line-height: 1; margin-bottom: 8px; color: var(--green-1); }
.cols { display: grid; gap: 32px; }
@media (min-width: 820px) { .cols { grid-template-columns: 1fr 1fr; } }
.plain-list { padding-left: 1.2em; }
.plain-list li { margin-bottom: .4em; max-width: var(--measure); }

/* Tabellen */
table { border-collapse: collapse; width: 100%; max-width: 46rem; margin: 0 0 1.2em; font-size: var(--step--1); }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 700; }
.table-scroll { overflow-x: auto; }

/* Anfrage-Strecke */
.flow { background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 24px; max-width: 760px; }
.progress { list-style: none; display: flex; gap: 6px; padding: 0; margin: 0 0 20px; flex-wrap: wrap; }
.progress li { font-size: var(--step--1); color: var(--ink-soft); padding: 4px 10px; border-radius: 99px; border: 1px solid var(--line); }
.progress li[aria-current="step"] { color: #fff; background: var(--ink); border-color: var(--ink); }
.progress li.done { color: var(--green-1); border-color: var(--green-1); }
.betrieb { border: 1px solid var(--line-strong); border-radius: var(--radius-s); padding: 12px 14px; margin-bottom: 8px; display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; align-items: start; cursor: pointer; }
.betrieb input { width: 20px; height: 20px; margin-top: 3px; accent-color: var(--green-1); }
.betrieb:has(input:checked) { border-color: var(--green-1); box-shadow: inset 0 0 0 1px var(--green-1); }
.betrieb .name { font-weight: 700; }
.betrieb .meta { color: var(--ink-soft); font-size: var(--step--1); grid-column: 2; }
.betrieb .status { grid-column: 2; font-size: var(--step--1); }
.betrieb .np-hint { grid-column: 1 / -1; font-size: var(--step--1); background: #f1f5f7; padding: 10px 12px; margin-top: 6px; display: none; }
.betrieb:has(input:checked) .np-hint { display: block; }
.consent { border: 2px solid var(--ink); border-radius: var(--radius-s); padding: 14px; display: grid; grid-template-columns: auto 1fr; gap: 12px; }
.consent input { width: 22px; height: 22px; margin-top: 3px; accent-color: var(--green-1); }
.error-msg { color: var(--error); font-weight: 700; }
.ok-box { border-left: 4px solid var(--green-1); background: #eef6f2; padding: 16px 18px; }
.muted { color: var(--ink-soft); }
.hidden { display: none !important; }

/* Rechtstexte */
.legal { background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 28px clamp(18px, 4vw, 48px); margin: 32px 0 56px; }
.legal h1 { font-size: clamp(1.7rem, 6vw, var(--step-3)); hyphens: auto; }
.legal h2 { font-size: var(--step-2); margin-top: 1.4em; }
.legal h3 { margin-top: 1.2em; }
.legal blockquote { margin: 1em 0; padding: 4px 16px; border-left: 4px solid var(--line-strong); }
.legal hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
.legal li { max-width: var(--measure); }

/* Partnerseite */
.price-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; max-width: 46rem; }
.price-list li { display: grid; grid-template-columns: 1fr auto; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.price-list .p { font-weight: 700; white-space: nowrap; }
.price-list .d { grid-column: 1 / -1; color: var(--ink-soft); font-size: var(--step--1); margin-top: -8px; }
.free-mark { display: inline-block; background: var(--green-1); color: #fff; font-weight: 700; padding: 2px 10px; border-radius: 4px; }
.person { display: flex; gap: 14px; align-items: center; margin-top: 16px; }
.person .initials { width: 52px; height: 52px; border-radius: 50%; background: #dce7e3; color: var(--green-1); display: grid; place-items: center; font-weight: 700; }

/* Fuß */
.site-foot { background: var(--ink); color: #d7e0e7; padding: 40px 0; font-size: var(--step--1); }
.site-foot a { color: #fff; }
.foot-grid { display: grid; gap: 24px; }
@media (min-width: 820px) { .foot-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.site-foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.site-foot p { max-width: 52ch; }
.linkbtn { background: none; border: 0; padding: 0; font: inherit; color: #fff; text-decoration: underline; cursor: pointer; }
dialog { border: 1px solid var(--line); border-radius: var(--radius-m); max-width: 32rem; padding: 24px; }
dialog::backdrop { background: rgba(23, 40, 59, .45); }

@media (max-width: 600px) { .nav { gap: 14px; font-size: var(--step--1); } .site-head .wrap { padding: 8px 0; } .calc, .flow { padding: 18px; } }
.field > label.consent { display: grid; font-weight: 400; margin: 0; padding: 14px; }