/* =========================================================
   Alpterm – Stylesheet
   Ruhig, viel Weißraum, neutrale Farben. Akzent nur im Logo.
   ========================================================= */
:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --ink: #1d1d1f;
  --ink-soft: #515154;
  --line: #d2d2d7;
  --dark: #000000;
  --dark-soft: #a1a1a6;
  --accent: #d71f27;       /* Logo-Rot, sehr sparsam */
  --link: #0066cc;
  --radius: 22px;
  --max: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI Variable Display", "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 60px; }
body {
  margin: 0; font-family: var(--font); font-size: 17px; line-height: 1.47;
  color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased; letter-spacing: -.01em;
}
img { max-width: 100%; display: block; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; font-weight: 800; letter-spacing: -.035em; line-height: 1.05; }
h1 { font-size: clamp(2.8rem, 7.5vw, 5.4rem); }
h2 { font-size: clamp(2rem, 5vw, 3.4rem); }
h3 { font-size: 1.3rem; letter-spacing: -.02em; }
p { margin: 0; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 760px; }
.center { text-align: center; }
.section { padding: 110px 0; }
.alt { background: var(--bg-alt); }
.dark { background: var(--dark); color: #f5f5f7; }
.kicker { font-size: .82rem; font-weight: 700; color: var(--accent); margin-bottom: 14px; letter-spacing: .14em; text-transform: uppercase; }
.dark .kicker { color: #ff5a5f; }
.sub { font-size: clamp(1.15rem, 2.2vw, 1.5rem); color: var(--ink-soft); margin-top: 16px; font-weight: 600; letter-spacing: -.015em; }
.dark .sub { color: var(--dark-soft); }
.head { margin-bottom: 56px; }
.fine { font-size: .9rem; color: var(--ink-soft); margin-top: 40px; }
.dark .fine { color: #86868b; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--ink); color: #fff; border: 0; border-radius: 980px;
  padding: 13px 26px; font: inherit; font-size: 1.02rem; font-weight: 600; cursor: pointer;
  transition: background .2s, transform .2s;
}
.btn:hover { background: #3a3a3c; text-decoration: none; }
.btn:active { transform: scale(.98); }
.btn-light { background: #f5f5f7; color: var(--ink); }
.btn-light:hover { background: #fff; }
.btn-block { width: 100%; padding: 15px; }
.link { font-size: 1.05rem; font-weight: 600; }
.dark .link { color: #2997ff; }
.actions { display: flex; gap: 26px; align-items: center; justify-content: center; flex-wrap: wrap; margin-top: 28px; }

/* ---------- Navigation ---------- */
.nav {
  position: sticky; top: 0; z-index: 50; height: 52px;
  background: rgba(22,22,23,.92); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav-inner { display: flex; align-items: center; height: 100%; gap: 24px; }
.logo { display: flex; align-items: center; color: var(--ink); }
.nav .logo { color: #fff; }
.logo svg, .logo img { height: 26px; width: 88px; }
.nav-links { display: flex; gap: 30px; margin: 0 auto; }
.nav-links a { color: #f5f5f7; font-size: .9rem; font-weight: 600; opacity: .85; }
.nav-links a:hover { opacity: 1; text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.lang-switch { display: flex; gap: 2px; }
.lang-switch button {
  border: 0; background: transparent; font: inherit; font-size: .78rem; font-weight: 700; color: #a1a1a6;
  padding: 4px 7px; border-radius: 6px; cursor: pointer;
}
.lang-switch button.active { color: #161617; background: #f5f5f7; }
.menu-toggle { display: none; border: 0; background: none; padding: 6px; cursor: pointer; color: #f5f5f7; }
.menu-toggle svg { width: 22px; height: 22px; }

.ribbon { background: var(--bg-alt); text-align: center; font-size: .9rem; font-weight: 600; padding: 12px 16px; color: var(--ink); }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 0; overflow: hidden; }
.hero .sub { font-size: clamp(1.25rem, 2.6vw, 1.75rem); }
.price { margin-top: 20px; font-size: 1.2rem; font-weight: 600; color: var(--ink); }
.price #heroFrom { font-weight: 800; }
.stage {
  margin-top: 56px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
}
.stage figure { margin: 0; border-radius: var(--radius) var(--radius) 0 0; overflow: hidden; aspect-ratio: 4 / 5; background: var(--bg-alt); }
.stage img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 45%; transform: scale(1.12); }

/* ---------- Kennzahlen ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat { background: #fff; border-radius: var(--radius); padding: 34px 26px; }
.stat strong { display: block; font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -.04em; line-height: 1; margin-bottom: 10px; }
.stat span { color: var(--ink-soft); font-size: .98rem; font-weight: 500; }

/* ---------- Gewerbe ---------- */
.scale { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 56px; text-align: left; }
.scale > div { background: #1d1d1f; border-radius: var(--radius); padding: 30px 26px; }
.scale h3 { margin: 18px 0 6px; font-size: 1.5rem; }
.scale p { color: var(--dark-soft); }
.dots { display: flex; gap: 6px; }
.dots i { width: 10px; height: 10px; border-radius: 50%; background: #3a3a3c; }
.dots i.on { background: #f5f5f7; }

/* ---------- Produkte ---------- */
.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px 14px; }
.product { display: flex; flex-direction: column; }
.product .img { aspect-ratio: 1 / 1; background: var(--bg-alt); border-radius: 18px; overflow: hidden; }
.product .img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.product:hover .img img { transform: scale(1.04); }
.product .body { padding: 14px 4px 22px; display: flex; flex-direction: column; flex: 1; }
.product .name { font-weight: 700; font-size: 1.05rem; }
.product .meta { color: var(--ink-soft); font-size: .86rem; margin-top: 2px; }
.product .price-line { margin-top: 10px; display: flex; align-items: baseline; gap: 8px; }
.product .now { font-size: 1.15rem; font-weight: 800; }
.product .was { font-size: .82rem; color: var(--ink-soft); }
.product .was s { text-decoration-thickness: 1px; }
.product .links { margin-top: 10px; display: flex; gap: 16px; font-size: .92rem; font-weight: 600; }
.product .links button { border: 0; background: none; padding: 0; font: inherit; font-weight: 600; color: var(--link); cursor: pointer; }
.product .links button:hover { text-decoration: underline; }
.swatch { display: inline-block; width: 11px; height: 11px; border-radius: 50%; border: 1px solid rgba(0,0,0,.25); vertical-align: -1px; margin-right: 5px; }
.swatch.white { background: #fff; }
.swatch.black { background: #1d1d1f; }

.specs { margin: 40px auto 0; max-width: 760px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.specs summary { cursor: pointer; list-style: none; padding: 18px 0; font-weight: 600; display: flex; justify-content: space-between; }
.specs summary::-webkit-details-marker, .faq summary::-webkit-details-marker { display: none; }
.specs summary::after, .faq summary::after { content: "+"; font-weight: 300; font-size: 1.5rem; line-height: 1; color: var(--ink-soft); transition: transform .2s; }
.specs[open] summary::after, .faq details[open] summary::after { transform: rotate(45deg); }
.specs dl { display: grid; grid-template-columns: auto 1fr; gap: 10px 28px; margin: 0 0 22px; font-size: .95rem; }
.specs dt { color: var(--ink-soft); }
.specs dd { margin: 0; }

/* ---------- FAQ ---------- */
.faq { margin-top: 44px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 22px 0; font-size: 1.15rem; font-weight: 700; display: flex; justify-content: space-between; gap: 20px; }
.faq details p { padding: 0 0 22px; color: var(--ink-soft); }

/* ---------- Kontakt ---------- */
.quick { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 18px; }
.quick a {
  display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 22px 10px;
  background: #fff; border-radius: 18px; color: var(--ink); font-weight: 700; transition: transform .2s;
}
.quick a:hover { text-decoration: none; transform: translateY(-2px); }
.quick svg { width: 26px; height: 26px; }
.form-card { background: #fff; border-radius: var(--radius); padding: 30px; }
.form-tabs { display: inline-grid; grid-template-columns: 1fr 1fr; background: var(--bg-alt); border-radius: 10px; padding: 3px; margin-bottom: 24px; }
.form-tabs button { border: 0; background: transparent; font: inherit; font-size: .92rem; font-weight: 500; padding: 7px 26px; border-radius: 8px; cursor: pointer; color: var(--ink-soft); }
.form-tabs button.active { background: #fff; color: var(--ink); box-shadow: 0 1px 3px rgba(0,0,0,.1); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .82rem; font-weight: 600; color: var(--ink-soft); }
.field input, .field select, .field textarea {
  font: inherit; font-size: 1rem; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: #fff; color: var(--ink); width: 100%;
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--link); box-shadow: 0 0 0 3px rgba(0,102,204,.15); }
.biz-only { display: none; }
.form-card.is-business .biz-only { display: flex; }
.form-card.is-business .private-only { display: none; }
.consent { grid-column: 1 / -1; display: flex; gap: 10px; align-items: flex-start; font-size: .85rem; color: var(--ink-soft); }
.consent input { margin-top: 3px; width: 17px; height: 17px; flex: none; accent-color: var(--ink); }
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.form-status { grid-column: 1 / -1; display: none; padding: 12px 14px; border-radius: 12px; font-size: .93rem; }
.form-status.ok { display: block; background: #e8f5ec; color: #1d6b3a; }
.form-status.err { display: block; background: #fdecec; color: #8c1d1d; }

/* ---------- Footer ---------- */
.footer { background: #161617; padding: 34px 0 28px; font-size: .8rem; color: #a1a1a6; }
.footer a { color: #d2d2d7; }
.footer .logo { color: #fff; }
.footer-top { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; padding-bottom: 18px; border-bottom: 1px solid #333336; }
.footer-top nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: .88rem; font-weight: 600; }
.footer-bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 16px; }

/* ---------- WhatsApp ---------- */
.wa-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 60; width: 52px; height: 52px; border-radius: 50%;
  background: var(--ink); color: #fff; display: grid; place-items: center; box-shadow: 0 6px 20px rgba(0,0,0,.18);
}
.wa-float:hover { background: #25d366; }
.wa-float svg { width: 26px; height: 26px; }

/* ---------- Rechtstexte ---------- */
.legal { padding: 70px 0 100px; }
.legal h1 { font-size: 2.6rem; margin-bottom: 30px; }
.legal h2 { font-size: 1.3rem; margin: 34px 0 10px; }
.legal p, .legal li { color: var(--ink-soft); }

/* ---------- Animation ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav-links {
    display: none; position: absolute; top: 52px; left: 0; right: 0; flex-direction: column; gap: 0;
    background: rgba(22,22,23,.98); padding: 8px 22px 18px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1.2rem; padding: 12px 0; font-weight: 600; }
  .menu-toggle { display: block; }
  .nav-actions { margin-left: auto; }
  .products { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: 1fr 1fr; }
  .scale { grid-template-columns: 1fr; }
  .section { padding: 80px 0; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .hero { padding-top: 48px; }
  .stage { margin-top: 40px; gap: 8px; }
  .stage figure { border-radius: 16px 16px 0 0; }
  .stat { padding: 24px 18px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 20px; }
  .quick a { padding: 16px 6px; font-size: .9rem; }
  .specs dl { grid-template-columns: 1fr; gap: 2px; }
  .specs dd { margin-bottom: 10px; }
  .section { padding: 64px 0; }
}