:root {
  --bg: #0f1113;
  --surface: #171a1d;
  --surface-2: #1e2226;
  --line: #2a2f34;
  --text: #e8eaec;
  --muted: #9aa3ab;
  --accent: #d4761a;
  --accent-soft: rgba(212, 118, 26, 0.12);
  --ok: #3fa66b;
  --warn: #d9a441;
  --radius: 14px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; max-width: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: 'Inter Tight', Inter, sans-serif; margin: 0; letter-spacing: -0.02em; line-height: 1.1; }
h1 { font-size: clamp(38px, 6vw, 64px); font-weight: 800; }
h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 700; }
h3 { font-size: 20px; font-weight: 700; }
p { margin: 0; }
a { color: inherit; }
.wrap { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.accent { color: var(--accent); }

/* Kopf */
header { position: sticky; top: 0; z-index: 10; background: rgba(15, 17, 19, 0.85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 24px; }
.wordmark { font-family: 'Inter Tight', sans-serif; font-weight: 800; letter-spacing: 0.06em; font-size: 18px; text-decoration: none; }
nav { display: flex; gap: 22px; align-items: center; font-size: 15px; }
nav a { text-decoration: none; color: var(--muted); }
nav a:hover { color: var(--text); }
.btn { display: inline-block; padding: 12px 20px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid var(--line); color: var(--text); background: var(--surface-2); white-space: nowrap; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #0f1113; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.big { padding: 16px 26px; font-size: 18px; }

/* Hero */
.hero { padding: 96px 0 72px; border-bottom: 1px solid var(--line); }
.hero .kicker { color: var(--accent); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; font-size: 13px; margin-bottom: 18px; }
.hero h1 { max-width: 15ch; }
.hero .lead { font-size: 21px; color: var(--muted); max-width: 56ch; margin-top: 24px; }
.hero .cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 36px; align-items: center; }
.hero .cta small { color: var(--muted); }

/* Abschnitte */
section { padding: 88px 0; border-bottom: 1px solid var(--line); }
.eyebrow { color: var(--accent); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; font-size: 13px; margin-bottom: 14px; }
.sub { color: var(--muted); font-size: 19px; max-width: 62ch; margin-top: 16px; }
.grid { display: grid; gap: 20px; margin-top: 44px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 16px; }

/* Das Loch */
.loch { background: var(--surface); }
.loch .zahl { font-family: 'Inter Tight', sans-serif; font-size: clamp(72px, 14vw, 160px); font-weight: 800; line-height: 0.95; color: var(--accent); letter-spacing: -0.04em; }
.loch .split { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; align-items: center; }
.beleg { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 26px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 14px; color: var(--muted); }
.beleg .row { display: flex; justify-content: space-between; gap: 16px; padding: 6px 0; border-bottom: 1px dashed var(--line); }
.beleg .row.fehlt { color: var(--warn); }
.beleg .row.total { color: var(--text); font-weight: 600; border-bottom: 0; padding-top: 12px; }

/* Ablauf */
.ablauf { counter-reset: schritt; display: grid; gap: 14px; margin-top: 44px; grid-template-columns: repeat(4, 1fr); }
@media (max-width: 700px) { .ablauf { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .ablauf { grid-template-columns: 1fr; } }
.schritt { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; position: relative; }
.schritt::before { counter-increment: schritt; content: counter(schritt); display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 14px; margin-bottom: 14px; }
.schritt h3 { font-size: 17px; }
.schritt p { color: var(--muted); font-size: 15px; margin-top: 6px; }

/* Fünf Systeme */
.fuenf { display: grid; grid-template-columns: 1fr auto 1fr; gap: 28px; align-items: center; margin-top: 44px; }
.fuenf ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.fuenf li { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; color: var(--muted); text-decoration: line-through; text-decoration-color: rgba(216, 86, 75, 0.7); }
.fuenf .pfeil { font-size: 40px; color: var(--accent); }
.fuenf .eins { background: var(--accent-soft); border: 1px solid var(--accent); border-radius: var(--radius); padding: 28px; }
.fuenf .eins strong { display: block; font-size: 22px; font-family: 'Inter Tight', sans-serif; }

/* Konfigurator */
.satz { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 26px; font-size: 18px; line-height: 1.6; }
.satz .q { color: var(--accent); }
.konfig { display: grid; gap: 20px; margin-top: 44px; grid-template-columns: 1.2fr 1fr; align-items: start; }
.ergebnis { display: grid; gap: 10px; grid-template-columns: repeat(5, 1fr); margin-top: 18px; }
.stat { background: var(--surface-2); border: 1px solid var(--line); border-radius: 12px; padding: 14px 14px; min-width: 0; }
.stat .label { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; white-space: nowrap; }
.stat .value { font-family: 'Inter Tight', sans-serif; font-size: 22px; font-weight: 700; margin-top: 4px; white-space: nowrap; }
@media (max-width: 900px) { .konfig { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .ergebnis { grid-template-columns: repeat(3, 1fr); } }

/* Preise */
.preise .grid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 700px) { .preise .grid { grid-template-columns: 1fr; } }
.preis { display: flex; flex-direction: column; gap: 14px; }
.preis .name { font-family: 'Inter Tight', sans-serif; font-size: 22px; font-weight: 700; }
.preis .betrag { font-family: 'Inter Tight', sans-serif; font-size: 44px; font-weight: 800; letter-spacing: -0.03em; display: flex; align-items: baseline; gap: 8px; white-space: nowrap; }
.preis .betrag small { font-size: 16px; font-weight: 500; color: var(--muted); letter-spacing: 0; font-family: Inter, sans-serif; }
.preis ul { list-style: none; padding: 0; margin: 6px 0 0; display: grid; gap: 8px; color: var(--muted); font-size: 15px; }
.preis li::before { content: '✓'; color: var(--ok); margin-right: 10px; font-weight: 700; }
.preis.empfohlen { border-color: var(--accent); background: linear-gradient(180deg, var(--accent-soft), var(--surface)); }
.preis .tag { align-self: flex-start; background: var(--accent); color: #0f1113; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; letter-spacing: 0.04em; text-transform: uppercase; }
.rechnung { margin-top: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 26px; color: var(--muted); }
.rechnung strong { color: var(--text); }

/* FAQ */
details { border-top: 1px solid var(--line); padding: 18px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; font-size: 18px; list-style: none; display: flex; justify-content: space-between; gap: 20px; }
summary::after { content: '+'; color: var(--accent); font-weight: 700; }
details[open] summary::after { content: '–'; }
details p { color: var(--muted); margin-top: 12px; max-width: 70ch; }

/* Schluss */
.schluss { text-align: center; padding: 110px 0; }
.schluss h2 { max-width: 20ch; margin: 0 auto; }
footer { padding: 36px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--muted); }

@media (max-width: 800px) {
  nav .nurgross { display: none; }
  .loch .split, .fuenf { grid-template-columns: 1fr; }
  .fuenf .pfeil { transform: rotate(90deg); text-align: center; }
  .hero { padding: 64px 0 56px; }
  section { padding: 64px 0; }
}

/* Textseiten: Impressum, Datenschutz */
main.prosa { padding: 64px 0 96px; max-width: 760px; }
.prosa h1 { margin-bottom: 24px; }
.prosa h2 { font-size: 22px; margin: 36px 0 10px; }
.prosa p, .prosa li { color: var(--muted); }
.prosa strong { color: var(--text); }
.prosa ul { padding-left: 22px; }
.prosa a { color: var(--text); }


/* Hero-Hintergrund: Foto aus der Werkstatt, links dunkel abgedeckt fuer den
   Text, rechts der Schweisser. Das Bild ist 140 % breit und links buendig,
   damit die Person (in der Bildmitte) rechts vom Text zu stehen kommt. */
.hero { position: relative; overflow: hidden; min-height: 78vh; display: flex; align-items: center; }
.hero-bg { position: absolute; inset: 0; z-index: -2; background: var(--bg) url(img/hero.jpg) 0% 30% / 140% auto no-repeat; filter: saturate(0.8) contrast(1.05); }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(15,17,19,0.97) 0%, rgba(15,17,19,0.9) 35%, rgba(15,17,19,0.55) 65%, rgba(15,17,19,0.35) 100%), linear-gradient(180deg, rgba(15,17,19,0) 70%, rgba(15,17,19,0.9) 100%); }
.hero .wrap { position: relative; }
@media (min-width: 1500px) { .hero-bg { background-size: 120% auto; background-position: 10% 30%; } }
@media (max-width: 800px) { .hero { min-height: 0; } .hero-bg { background-size: cover; background-position: 60% center; } .hero-bg::after { background: rgba(15,17,19,0.86); } }

/* Rollen */
.rollen { display: grid; gap: 18px; margin-top: 44px; grid-template-columns: repeat(2, 1fr); }
.rolle { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.rolle .wer { color: var(--accent); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; font-size: 12px; margin-bottom: 10px; }
.rolle h3 { font-size: 21px; margin-bottom: 14px; }
.rolle ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; color: var(--muted); font-size: 15px; }
.rolle li { padding-left: 18px; position: relative; }
.rolle li::before { content: ''; position: absolute; left: 0; top: 9px; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); opacity: 0.8; }
@media (max-width: 800px) { .rollen { grid-template-columns: 1fr; } }

/* Zeichnung */
section.dunkel { background: var(--surface); }
.blatt { margin: 28px 0 0; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 26px 14px; }
.blatt img { display: block; width: 100%; height: auto; }
.blatt figcaption { color: var(--muted); font-size: 14px; margin-top: 10px; }
.blaetter { display: grid; gap: 18px; grid-template-columns: 1.6fr 1fr; margin-top: 18px; }
.blatt.klein { margin: 0; }
.blatt.klein img { max-height: 260px; margin: 0 auto; width: auto; max-width: 100%; }
@media (max-width: 800px) { .blaetter { grid-template-columns: 1fr; } }
section.dunkel .satz { background: var(--bg); margin-top: 28px; }
section.dunkel .ergebnis { margin-top: 18px; }
section.dunkel .stat { background: var(--bg); }
section.dunkel .card { background: var(--bg); }

/* Formular */
.formular { max-width: 640px; margin: 32px auto 0; text-align: left; display: grid; gap: 14px; }
.formular label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); font-weight: 500; }
.formular input, .formular textarea { width: 100%; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 13px 14px; color: var(--text); font: inherit; font-size: 16px; }
.formular input:focus, .formular textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.formular .zeile { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
.formular .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.formular .senden { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; }
.formular button { cursor: pointer; font: inherit; }
.antwort { margin: 0; min-height: 1.5em; color: var(--muted); font-size: 15px; }
.antwort.ok { color: var(--ok); }
.antwort.fehler { color: var(--warn); }
@media (max-width: 600px) { .formular .zeile { grid-template-columns: 1fr; } }

/* Bildbänder: ein Foto in voller Breite, dunkel abgedeckt, Text links.
   Fehlt das Foto, bleibt ein dunkler Band mit Text, nichts bricht. */
.band { position: relative; padding: 140px 0; background: var(--surface-2); overflow: hidden; isolation: isolate; }
.band::before { content: ''; position: absolute; inset: 0; background: var(--foto) var(--pos, center) / cover no-repeat; filter: saturate(0.75) contrast(1.05); z-index: -2; }
.band::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(15,17,19,0.94) 0%, rgba(15,17,19,0.75) 45%, rgba(15,17,19,0.35) 100%); z-index: -1; }
.band.rechts::after { background: linear-gradient(270deg, rgba(15,17,19,0.94) 0%, rgba(15,17,19,0.75) 45%, rgba(15,17,19,0.35) 100%); }
.band.rechts .wrap { display: flex; flex-direction: column; align-items: flex-end; text-align: right; }
.band h2 { max-width: 22ch; }
.band .sub { max-width: 52ch; }
@media (max-width: 800px) { .band { padding: 96px 0; } .band::after { background: rgba(15,17,19,0.82); } .band.rechts .wrap { align-items: flex-start; text-align: left; } }

/* Wer dahinter steht */
.dahinter { display: grid; gap: 20px; margin-top: 44px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .dahinter { grid-template-columns: 1fr; } }