/* Bauplanblick – Webseite. Keine externen Schriften oder Bibliotheken (Datenschutz). */

:root {
  --blau: #1d3a66;
  --blau-dunkel: #12264a;
  --blau-hell: #e9eff8;
  --akzent: #f5a524;
  --akzent-dunkel: #dc8d0c;
  --text: #1c2430;
  --text-leise: #5a6575;
  --grau: #f4f6f9;
  --rand: #dde3ea;
  --rot: #b42318;
  --gruen: #1f7a4d;
  --radius: 12px;
  --schatten: 0 1px 2px rgba(16, 32, 64, .06), 0 8px 24px rgba(16, 32, 64, .08);
  --schatten-bild: 0 2px 6px rgba(16, 32, 64, .08), 0 24px 60px rgba(16, 32, 64, .18);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font: 17px/1.6 "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blau); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; color: var(--blau-dunkel); }
h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -.01em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

.rahmen { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.schmal { max-width: 720px; }
.mittig { text-align: center; }

.springen { position: absolute; left: -999px; }
.springen:focus { left: 16px; top: 16px; z-index: 100; background: #fff; padding: 8px 12px; }

/* --- Knöpfe -------------------------------------------------------------------------------- */
.knopf {
  display: inline-block;
  padding: 10px 18px;
  border: 2px solid transparent;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background .15s, transform .15s, box-shadow .15s;
}
.knopf:hover { transform: translateY(-1px); }
.knopf:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--akzent); outline-offset: 2px;
}
.knopf-akzent { background: var(--akzent); color: var(--blau-dunkel); box-shadow: 0 4px 14px rgba(245, 165, 36, .35); }
.knopf-akzent:hover { background: var(--akzent-dunkel); }
.knopf-dunkel { background: var(--blau); color: #fff; }
.knopf-dunkel:hover { background: var(--blau-dunkel); }
.knopf-hell { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .35); }
.knopf-hell:hover { background: rgba(255, 255, 255, .2); }
.knopf-rand { border-color: var(--blau); color: var(--blau); background: #fff; }
.knopf-rand:hover { background: var(--blau-hell); }
.knopf-gross { padding: 14px 26px; font-size: 1.05rem; }
.knopf-breit { width: 100%; }

/* --- Kopf ---------------------------------------------------------------------------------- */
.kopf {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rand);
}
.kopf-innen { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.marke { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--blau-dunkel); font-size: 1.35rem; letter-spacing: -.01em; }
.marke b { color: var(--akzent-dunkel); }
.marke-hell { color: #fff; }
.marke-hell b { color: var(--akzent); }
.menue { display: flex; align-items: center; gap: 28px; }
.menue a:not(.knopf) { color: var(--text); text-decoration: none; font-weight: 500; }
.menue a:not(.knopf):hover { color: var(--blau); text-decoration: underline; text-underline-offset: 4px; }
.menue-knopf { display: none; }

@media (max-width: 800px) {
  .menue-knopf {
    display: block; background: none; border: 1px solid var(--rand); border-radius: 8px;
    padding: 6px 12px; font: inherit; color: var(--text);
  }
  .menue {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--rand); padding: 8px 20px 16px;
  }
  .menue.offen { display: flex; }
  .menue a:not(.knopf) { padding: 12px 0; border-bottom: 1px solid var(--grau); }
  .menue .knopf { margin-top: 12px; text-align: center; }
}

/* --- Einstieg ------------------------------------------------------------------------------ */
.einstieg {
  background:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(160deg, var(--blau) 0%, var(--blau-dunkel) 100%);
  color: #fff;
  padding: 72px 0 88px;
  overflow: hidden;
}
.einstieg h1 { color: #fff; }
.einstieg-innen { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; }
.vorzeile { text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; font-weight: 600; color: var(--akzent); }
.einleitung { font-size: 1.15rem; color: #d8e2f0; max-width: 34em; }
.knoepfe { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 16px; }
.einstieg .kleingedruckt { color: #aebdd3; }
.bild-einstieg { transform: perspective(1600px) rotateY(-6deg) rotateX(2deg); transform-origin: left center; }

@media (max-width: 960px) {
  .einstieg { padding: 48px 0 56px; }
  .einstieg-innen { grid-template-columns: 1fr; gap: 40px; }
  .bild-einstieg { transform: none; }
}

/* --- Bildschirmfotos im Browserrahmen ------------------------------------------------------ */
.bild { margin: 0; border-radius: 10px; overflow: hidden; background: #fff; box-shadow: var(--schatten-bild); border: 1px solid rgba(16, 32, 64, .08); }
.browser { height: 26px; background: #eef1f5; border-bottom: 1px solid var(--rand); display: flex; align-items: center; gap: 6px; padding: 0 12px; }
.browser span { width: 10px; height: 10px; border-radius: 50%; background: #cfd6df; }
.browser span:first-child { background: #f2766b; }
.browser span:nth-child(2) { background: #f5c04e; }
.browser span:nth-child(3) { background: #5cc27a; }

/* --- Abschnitte ---------------------------------------------------------------------------- */
.abschnitt { padding: 88px 0; }
.abschnitt-grau { background: var(--grau); }
.abschnitt-dunkel { background: var(--blau-dunkel); color: #d8e2f0; }
.abschnitt-dunkel h2, .abschnitt-dunkel h3 { color: #fff; }
.unterzeile { font-size: 1.1rem; color: var(--text-leise); max-width: 40em; margin: 0 auto 48px; }
.abschnitt-dunkel .unterzeile { color: #aebdd3; }
.hinweis-mitte { text-align: center; margin: 40px auto 0; font-weight: 600; color: var(--blau); max-width: 36em; }
.kleingedruckt { font-size: .875rem; color: var(--text-leise); }

@media (max-width: 700px) { .abschnitt { padding: 56px 0; } }

.raster { display: grid; gap: 24px; }
.raster-3 { grid-template-columns: repeat(3, 1fr); }
.raster-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) { .raster-3, .raster-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .raster-3, .raster-4 { grid-template-columns: 1fr; } }

.karte { background: #fff; border: 1px solid var(--rand); border-radius: var(--radius); padding: 28px; box-shadow: var(--schatten); }
.karte p:last-child { margin-bottom: 0; }
.karte-problem { border-top: 4px solid var(--rot); }
.symbol {
  width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center;
  background: var(--blau-hell); color: var(--blau); font-size: 1.3rem; font-weight: 700; margin-bottom: 16px;
}
.punkt { border-left: 3px solid var(--akzent); padding-left: 18px; }

/* --- Funktionen im Bild -------------------------------------------------------------------- */
.zeigen { display: grid; grid-template-columns: 1fr 1.3fr; gap: 64px; align-items: center; }
.zeigen + .zeigen { margin-top: 96px; }
.zeigen-gedreht .zeigen-text { order: 2; }
.haken { list-style: none; padding: 0; margin: 0; }
.haken li { padding-left: 30px; position: relative; margin-bottom: 8px; }
.haken li::before { content: "✓"; position: absolute; left: 0; color: var(--gruen); font-weight: 700; }
@media (max-width: 900px) {
  .zeigen { grid-template-columns: 1fr; gap: 32px; }
  .zeigen-gedreht .zeigen-text { order: 0; }
  .zeigen + .zeigen { margin-top: 64px; }
}

/* --- Preise -------------------------------------------------------------------------------- */
.preise { max-width: 960px; margin: 0 auto 24px; }
.preis { text-align: center; display: flex; flex-direction: column; }
.preis .knopf { margin-top: auto; }
.betrag { color: var(--text-leise); }
.betrag span { display: block; font-size: 2.6rem; font-weight: 700; color: var(--blau-dunkel); letter-spacing: -.02em; }
.volumen { font-weight: 600; margin-bottom: 24px; }
.preis-hervor { border: 2px solid var(--akzent); transform: translateY(-8px); }
@media (max-width: 640px) { .preis-hervor { transform: none; } }

/* --- Formulare ----------------------------------------------------------------------------- */
.zwei-spalten { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
@media (max-width: 900px) { .zwei-spalten { grid-template-columns: 1fr; gap: 32px; } }

.schritte { list-style: none; counter-reset: schritt; padding: 0; margin: 32px 0 0; }
.schritte li { counter-increment: schritt; position: relative; padding-left: 56px; margin-bottom: 24px; }
.schritte li::before {
  content: counter(schritt); position: absolute; left: 0; top: 0;
  width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center;
  background: var(--blau); color: #fff; font-weight: 700;
}
.schritte b { display: block; color: var(--blau-dunkel); }
.schritte span { color: var(--text-leise); }

.formular .feld { margin-bottom: 18px; }
.formular label { display: block; font-weight: 600; margin-bottom: 6px; }
.formular label small { font-weight: 400; color: var(--text-leise); }
.formular input[type=text], .formular input[type=email], .formular textarea {
  width: 100%; padding: 11px 14px; font: inherit; color: var(--text);
  border: 1px solid #c5cfdb; border-radius: 8px; background: #fff;
}
.formular input:focus, .formular textarea:focus { border-color: var(--blau); outline: 3px solid var(--blau-hell); }
.feld-haken label { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; font-size: .95rem; }
.feld-haken input { margin-top: 5px; width: 18px; height: 18px; flex: none; accent-color: var(--blau); }
.feld-fehler input, .feld-fehler textarea { border-color: var(--rot); }
.fehler { color: var(--rot); font-size: .9rem; margin: 6px 0 0; }
.fehler-box { background: #fdecea; border: 1px solid #f5c2bc; color: var(--rot); border-radius: 8px; padding: 12px 16px; margin-bottom: 18px; }
.fehler-box p { margin: 0; }
.honig { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.formular .knopf { margin: 8px 0 12px; }
.kontaktdaten { margin-top: 24px; }

/* --- Meldungen (Bestätigung, Status) ------------------------------------------------------- */
.meldung { text-align: center; padding: 48px 40px; }
.meldung h1 { font-size: 1.9rem; }
.meldung form, .meldung .knopf { margin: 16px 0; }
.meldung-symbol {
  width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 50%;
  display: grid; place-items: center; font-size: 1.8rem; background: var(--blau-hell); color: var(--blau);
}
.meldung-gut { background: #e3f4ea; color: var(--gruen); }
.laden {
  width: 56px; height: 56px; margin: 0 auto 24px; border-radius: 50%;
  border: 5px solid var(--blau-hell); border-top-color: var(--akzent);
  animation: drehen 1s linear infinite;
}
@keyframes drehen { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .laden { animation: none; } html { scroll-behavior: auto; } }

.zugang { display: grid; grid-template-columns: auto 1fr; gap: 10px 20px; text-align: left; max-width: 480px; margin: 24px auto; background: var(--grau); border-radius: 10px; padding: 20px 24px; }
.zugang dt { font-weight: 600; color: var(--text-leise); }
.zugang dd { margin: 0; overflow-wrap: anywhere; }
.zugang code { font-size: 1.1rem; background: #fff; border: 1px solid var(--rand); border-radius: 6px; padding: 2px 8px; }

/* --- Textseiten ---------------------------------------------------------------------------- */
.text h2 { font-size: 1.3rem; margin-top: 2em; }

/* --- Fuß ----------------------------------------------------------------------------------- */
.fuss { background: var(--blau-dunkel); color: #aebdd3; padding: 48px 0 24px; font-size: .95rem; }
.fuss-innen { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.fuss p { margin-top: 12px; }
.fuss nav { display: flex; flex-direction: column; gap: 8px; }
.fuss a:not(.marke) { color: #d8e2f0; }
.fuss-unten { border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 32px; padding-top: 20px; font-size: .85rem; }