:root {
    --bg: #ffffff;
    --bg-alt: #f5f5f7;
    --ink: #1d1d1f;
    --ink-soft: #86868b;
    --line: #d2d2d7;
    --accent: #0071e3;
    --accent-ink: #ffffff;
    --card-1: #ffffff;
    --card-border: rgba(0,0,0,.06);
    --shadow: 0 2px 6px rgba(0,0,0,.04), 0 20px 40px rgba(0,0,0,.06);
    --nav-bg: rgba(255,255,255,.8);
  }
  @media (prefers-color-scheme: dark) {
    :root {
      --bg: #000000;
      --bg-alt: #1c1c1e;
      --ink: #f5f5f7;
      --ink-soft: #98989d;
      --line: #38383a;
      --accent: #2997ff;
      --accent-ink: #ffffff;
      --card-1: #1c1c1e;
      --card-border: rgba(255,255,255,.08);
      --shadow: 0 2px 6px rgba(0,0,0,.3), 0 20px 40px rgba(0,0,0,.4);
      --nav-bg: rgba(0,0,0,.7);
    }
  }
  :root[data-theme="dark"] {
    --bg: #000000; --bg-alt: #1c1c1e; --ink: #f5f5f7; --ink-soft: #98989d;
    --line: #38383a; --accent: #2997ff; --accent-ink: #ffffff; --card-1: #1c1c1e;
    --card-border: rgba(255,255,255,.08);
    --shadow: 0 2px 6px rgba(0,0,0,.3), 0 20px 40px rgba(0,0,0,.4);
    --nav-bg: rgba(0,0,0,.7);
  }
  :root[data-theme="light"] {
    --bg: #ffffff; --bg-alt: #f5f5f7; --ink: #1d1d1f; --ink-soft: #86868b;
    --line: #d2d2d7; --accent: #0071e3; --accent-ink: #ffffff; --card-1: #ffffff;
    --card-border: rgba(0,0,0,.06);
    --shadow: 0 2px 6px rgba(0,0,0,.04), 0 20px 40px rgba(0,0,0,.06);
    --nav-bg: rgba(255,255,255,.8);
  }

  * { box-sizing: border-box; }
  html { scroll-behavior: auto; }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 17px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    transition: background .3s ease, color .3s ease;
  }

  h1, h2, h3, h4 { margin: 0; text-wrap: balance; font-weight: 600; letter-spacing: 0.01em; text-transform: uppercase; }
  p { margin: 0; }
  a { color: inherit; text-decoration: none; }
  ul { margin: 0; padding: 0; list-style: none; }
  button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
  img, svg { display: block; max-width: 100%; }

  .container {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 5vw, 2.5rem);
  }
  .narrow { max-width: 780px; margin: 0 auto; text-align: center; }

  .eyebrow {
    display: block;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: .6rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .link-chevron {
    display: inline-flex;
    align-items: center;
    gap: .2rem;
    color: var(--accent);
    font-size: 1.15rem;
    font-weight: 400;
    transition: gap .2s ease;
  }
  .link-chevron:hover { gap: .4rem; text-decoration: underline; }
  .link-chevron svg { width: 15px; height: 15px; }

  .btn-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .7rem 1.6rem;
    border-radius: 980px;
    font-size: .95rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: var(--accent);
    color: var(--accent-ink);
    transition: opacity .2s ease, transform .2s ease;
  }
  .btn-pill:hover { opacity: .85; }
  .btn-pill:active { transform: scale(.97); }
  .btn-pill.ghost {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line);
  }
  .btn-pill.ghost:hover { border-color: var(--ink-soft); opacity: 1; }

  :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

  /* ---------- Nav ---------- */
  header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--nav-bg);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color .3s ease;
  }
  header.scrolled { border-bottom-color: var(--line); }
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 clamp(1.25rem, 5vw, 2.5rem);
  }
  .nav-logo { display: flex; align-items: center; gap: .6rem; font-weight: 600; font-size: 1.4rem; text-transform: uppercase; letter-spacing: 0.03em; }
  .nav-logo svg { width: 30px; height: 30px; }
  .nav-logo img.logo-icon { height: 42px; width: auto; flex: none; }
  nav.main-nav { display: flex; align-items: center; gap: 2.2rem; }
  nav.main-nav a { font-size: .8rem; color: var(--ink); opacity: .8; transition: opacity .15s ease; text-transform: uppercase; letter-spacing: 0.04em; }
  nav.main-nav a:hover { opacity: 1; }
  .nav-dropdown { position: relative; }
  .nav-dropdown-trigger { display: inline-block; }
  .nav-dropdown-panel {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    margin-top: 8px;
    min-width: 220px;
    background: var(--card-1);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: .55rem;
    display: flex;
    flex-direction: column;
    gap: .1rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity .15s ease, transform .15s ease, visibility 0s linear .15s;
    z-index: 120;
  }
  .nav-dropdown-panel a {
    padding: .55rem .75rem;
    border-radius: 10px;
    font-size: .85rem;
    white-space: nowrap;
  }
  .nav-dropdown-panel a:hover { background: var(--bg-alt); opacity: 1; }
  .nav-dropdown:hover .nav-dropdown-panel,
  .nav-dropdown:focus-within .nav-dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    transition: opacity .15s ease, transform .15s ease;
  }
  .nav-dropdown-panel-wide {
    flex-direction: row;
    gap: 2rem;
    min-width: 600px;
    padding: 1rem 1.2rem;
  }
  .nav-dropdown-col { display: flex; flex-direction: column; gap: .1rem; min-width: 150px; }
  .nav-dropdown-heading {
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--ink-soft);
    padding: .4rem .75rem .35rem;
  }
  .nav-right { display: flex; align-items: center; gap: .9rem; }
  .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .5rem 1.15rem;
    border-radius: 980px;
    background: var(--accent);
    color: var(--accent-ink);
    font-size: .78rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    transition: opacity .2s ease;
  }
  .nav-cta:hover { opacity: .85; }
  .nav-toggle { position: relative; z-index: 210; display: none; width: 32px; height: 32px; align-items: center; justify-content: center; }
  .nav-toggle svg { width: 18px; height: 18px; }
  .nav-toggle .icon-close { display: none; }
  .nav-toggle[aria-expanded="true"] .icon-burger { display: none; }
  .nav-toggle[aria-expanded="true"] .icon-close { display: block; }
  @media (max-width: 900px) {
    nav.main-nav { display: none; }
    .nav-toggle { display: flex; }
  }
  @media (min-width: 901px) { .nav-overlay { display: none; } }

  /* ---------- Nav overlay menu ---------- */
  .nav-overlay {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 150;
    background: var(--bg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .25s ease, transform .25s ease, visibility 0s linear .25s;
    overflow-y: auto;
  }
  .nav-overlay.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity .25s ease, transform .25s ease;
  }
  .nav-overlay-inner {
    max-width: 640px;
    margin: 0 auto;
    padding: 2.5rem clamp(1.25rem, 6vw, 2.5rem) 3rem;
    display: flex;
    flex-direction: column;
    gap: 2.6rem;
  }
  .nav-overlay-group { display: flex; flex-direction: column; gap: .9rem; }
  .nav-overlay-label {
    font-size: .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--accent);
  }
  .nav-overlay-group a { font-size: clamp(1.3rem, 4vw, 1.6rem); font-weight: 600; letter-spacing: -0.01em; transition: color .15s ease; }
  .nav-overlay-group a:hover { color: var(--accent); }
  .nav-overlay-cta { align-self: flex-start; }

  /* ---------- Hero category row ---------- */
  .hero-category-row { margin-bottom: 1.75rem; padding-top: 0; }

  /* ---------- Reveal ---------- */
  .reveal {
    opacity: 0;
    transform: translateY(36px) scale(.98);
    transition: opacity 1s cubic-bezier(.16,1,.3,1), transform 1s cubic-bezier(.16,1,.3,1);
  }
  .reveal.is-visible { opacity: 1; transform: translateY(0) scale(1); }
  @media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

  /* ---------- Hero ---------- */
  .hero {
    padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(3rem, 6vw, 5rem);
    text-align: center;
  }
  .hero .eyebrow {
    margin-top: clamp(2.5rem, 6vw, 4rem);
  }
  .hero h1 {
    font-size: clamp(2.75rem, 7vw, 5.75rem);
    font-weight: 700;
    line-height: 1.04;
    max-width: 16ch;
    margin: 0 auto;
  }
  .hero .lead {
    font-size: clamp(1.15rem, 2vw, 1.5rem);
    color: var(--ink-soft);
    max-width: 40ch;
    margin: 1.4rem auto 0;
  }
  .hero-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 2.2rem;
    flex-wrap: wrap;
  }

  .hero-visual {
    margin-top: 0;
    max-width: 880px;
    margin-left: auto;
    margin-right: auto;
  }

  /* ---------- Hero video ---------- */
  .hero-video-frame {
    position: relative;
    border-radius: 32px;
    overflow: hidden;
    aspect-ratio: 16/9;
    box-shadow: var(--shadow);
    border: 1px solid var(--card-border);
    background: var(--bg-alt);
  }
  .hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0;
    transition: opacity .6s ease;
  }
  .hero-video.is-active { opacity: 1; }
  .hero-video-fallback { display: none; position: absolute; inset: 0; }
  @media (prefers-reduced-motion: reduce) {
    .hero-video { display: none; }
    .hero-video-fallback { display: block; }
  }

  /* ---------- Glow product card ---------- */
  .glow-card {
    position: relative;
    border-radius: 32px;
    overflow: hidden;
    background: linear-gradient(180deg, var(--card-1), var(--bg-alt));
    border: 1px solid var(--card-border);
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
  }
  .glow-card::before {
    content: "";
    position: absolute;
    width: 60%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle, var(--glow, var(--accent)) 0%, transparent 72%);
    filter: blur(50px);
    opacity: .55;
  }
  .glow-card .glyph {
    position: relative;
    width: clamp(90px, 16vw, 160px);
    height: clamp(90px, 16vw, 160px);
    color: var(--ink);
  }
  .glow-card .glyph svg { width: 100%; height: 100%; }
  .hero-visual .glow-card { aspect-ratio: 21/10; }
  .hero-visual .glyph { width: clamp(140px, 22vw, 240px); height: clamp(140px, 22vw, 240px); }

  /* ---------- Store: category row ---------- */
  .store-section { padding: clamp(2.5rem, 5vw, 3.5rem) 0 clamp(4rem, 8vw, 6rem); }
  .store-section h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); text-align: center; margin-bottom: 2.2rem; }
  .category-row {
    display: flex;
    gap: clamp(1.25rem, 3vw, 2.25rem);
    overflow-x: auto;
    justify-content: flex-start;
    padding: .25rem clamp(1.25rem, 5vw, 2.5rem) 1rem;
    margin: 0 clamp(-1.25rem, -5vw, -2.5rem);
  }
  @media (min-width: 900px) { .category-row { justify-content: center; flex-wrap: wrap; } }
  .category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .65rem;
    width: 82px;
    flex: none;
    text-align: center;
  }
  .category-icon {
    width: 58px; height: 58px;
    border-radius: 50%;
    background: var(--bg-alt);
    display: flex; align-items: center; justify-content: center;
    color: var(--ink);
    overflow: hidden;
    box-shadow: 0 0 0 1px var(--card-border);
    transition: transform .2s ease, box-shadow .2s ease;
  }
  .category-item:hover .category-icon { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,.15), 0 0 0 1px var(--card-border); }
  .category-icon svg { width: 26px; height: 26px; }
  .category-icon img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .category-item span { font-size: .72rem; color: var(--ink-soft); line-height: 1.25; text-transform: uppercase; letter-spacing: 0.03em; }

  /* ---------- Store: banner grid ---------- */
  .banner-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
  }
  @media (max-width: 760px) { .banner-grid { grid-template-columns: 1fr; } }
  .banner-card {
    position: relative;
    border-radius: 28px;
    padding: clamp(1.75rem, 3vw, 2.5rem);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    color: #fff;
    isolation: isolate;
  }
  .banner-card .b-eyebrow { font-size: .82rem; opacity: .85; }
  .banner-card h3 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); color: #fff; max-width: 15ch; margin-top: .3rem; }
  .banner-card p { font-size: .93rem; opacity: .88; margin-top: .5rem; max-width: 26ch; }
  .banner-card .link-chevron { color: #fff; margin-top: 1.3rem; position: relative; z-index: 1; }
  .banner-card .b-icon {
    position: absolute; right: -6%; bottom: -8%;
    width: 46%; color: rgba(255,255,255,.5);
    z-index: 0;
  }
  .banner-card .b-icon svg { width: 100%; height: 100%; }
  .banner-card.bc-1 { background: linear-gradient(160deg, #ff9d4d, #7a3b0a); }
  .banner-card.bc-2 { background: linear-gradient(160deg, #ffe08a, #a8720a); }
  .banner-card.bc-3 { background: linear-gradient(160deg, #8fdcff, #0a5c8a); }
  .banner-card.bc-4 { background: linear-gradient(160deg, #7fe8ac, #0a6b3f); }

  /* ---------- Store: secondary info cards ---------- */
  .secondary-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.25rem;
    margin-top: 1.25rem;
  }
  @media (max-width: 980px) { .secondary-row { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 700px) { .secondary-row { grid-template-columns: 1fr; } }
  .secondary-card {
    display: flex;
    align-items: flex-start;
    gap: 1.1rem;
    background: var(--bg-alt);
    border-radius: 22px;
    padding: 1.6rem 1.75rem;
  }
  .secondary-card .s-icon { width: 36px; height: 36px; flex: none; color: var(--accent); }
  .secondary-card .s-icon svg { width: 100%; height: 100%; }
  .secondary-card h4 { font-size: 1.02rem; margin-bottom: .35rem; }
  .secondary-card p { font-size: .88rem; color: var(--ink-soft); margin-bottom: .65rem; line-height: 1.5; }
  .secondary-card .link-chevron { font-size: .95rem; }

  /* ---------- Energiehaus (Reonic) ---------- */
  .energyhouse-section { background: var(--bg-alt); padding: clamp(5rem, 10vw, 7rem) 0; }
  .energyhouse-card {
    max-width: 900px;
    margin: 3rem auto 0;
    background: var(--bg);
    border: 1px solid var(--card-border);
    border-radius: 28px;
    padding: clamp(1rem, 3vw, 2rem);
    box-shadow: var(--shadow);
    overflow: hidden;
  }
  .energyhouse-card > div[data-reonic-type] {
    border-radius: 18px;
    overflow: hidden;
  }
  .energyhouse-card iframe {
    display: block;
    border-radius: 18px;
  }

  /* ---------- Feature section ---------- */
  .feature {
    padding: clamp(5rem, 10vw, 8rem) 0;
    text-align: center;
  }
  .feature.on-alt { background: var(--bg-alt); }
  .feature .eyebrow { font-size: 1.05rem; }
  .feature h1, .feature h2 { font-size: clamp(2.5rem, 5.5vw, 4rem); }
  .feature .sub {
    font-size: clamp(1.3rem, 2.4vw, 1.7rem);
    color: var(--ink-soft);
    font-weight: 400;
    margin-top: .6rem;
    max-width: 30ch;
    margin-left: auto;
    margin-right: auto;
  }
  .feature .body-copy {
    font-size: 1.1rem;
    color: var(--ink-soft);
    max-width: 46ch;
    margin: 1.3rem auto 0;
  }
  .feature .link-chevron { margin-top: 1.6rem; }
  .feature .glow-card { margin-top: clamp(2.5rem, 5vw, 3.5rem); }

  .spec-row {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
    margin-top: 1.6rem;
  }
  .spec-row div { text-align: center; }
  .spec-row .num {
    font-size: 1.9rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
  }
  .spec-row .cap { font-size: .8rem; color: var(--ink-soft); margin-top: .2rem; }

  /* ---------- Stats (fixed dark band) ---------- */
  .stats-band {
    background: #000;
    color: #f5f5f7;
    padding: clamp(4.5rem, 9vw, 7rem) 0;
    text-align: center;
  }
  .stats-band h2 { color: #fff; font-size: clamp(2rem, 4vw, 2.75rem); margin-bottom: 3rem; }
  .stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
  @media (max-width: 760px) { .stat-grid { grid-template-columns: 1fr 1fr; } }
  .stat-num {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    background: linear-gradient(180deg, #fff, #98989d);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .stat-label { font-size: .85rem; color: #98989d; margin-top: .5rem; text-transform: uppercase; letter-spacing: 0.03em; }

  /* ---------- Process ---------- */
  .process { padding: clamp(5rem, 10vw, 7rem) 0; }
  .process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2.5rem;
    margin-top: 3rem;
  }
  @media (max-width: 860px) { .process-grid { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 560px) { .process-grid { grid-template-columns: 1fr; } }
  .process-step { text-align: left; }
  .process-num {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--line);
    margin-bottom: .8rem;
    font-variant-numeric: tabular-nums;
  }
  .process-step h4 { font-size: 1.15rem; margin-bottom: .5rem; }
  .process-step p { color: var(--ink-soft); font-size: .95rem; }

  /* ---------- Testimonials ---------- */
  .testi { background: var(--bg-alt); padding: clamp(5rem, 10vw, 7rem) 0; }
  .testi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
  }
  @media (max-width: 900px) { .testi-grid { grid-template-columns: 1fr; } }
  .testi-card {
    background: var(--bg);
    border: 1px solid var(--card-border);
    border-radius: 22px;
    padding: 2rem;
    text-align: left;
    box-shadow: var(--shadow);
  }
  .stars { color: #fbbc04; font-size: .95rem; letter-spacing: .12em; margin-bottom: 1rem; display: block; }
  .testi-card p.quote { font-size: 1rem; line-height: 1.6; margin-bottom: 1.4rem; }
  .testi-who { display: flex; align-items: center; gap: .8rem; }
  .avatar {
    position: relative;
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--bg-alt); border: 1px solid var(--card-border);
    display: flex; align-items: center; justify-content: center;
    font-size: .72rem; font-weight: 600; color: var(--ink-soft);
  }
  .avatar .g-badge {
    position: absolute; right: -3px; bottom: -3px;
    width: 15px; height: 15px; border-radius: 50%;
    background: var(--bg); border: 1px solid var(--card-border);
    display: flex; align-items: center; justify-content: center;
  }
  .avatar .g-badge svg { width: 9px; height: 9px; }
  .testi-who .name { font-size: .9rem; font-weight: 600; }
  .testi-who .meta { font-size: .8rem; color: var(--ink-soft); }

  /* ---------- Google rating badge ---------- */
  .rating-badge {
    display: inline-flex;
    align-items: center;
    gap: .7rem;
    margin-top: 1.4rem;
    padding: .6rem 1.1rem .6rem .8rem;
    background: var(--bg);
    border: 1px solid var(--card-border);
    border-radius: 980px;
    box-shadow: var(--shadow);
  }
  .rating-badge .g-logo { width: 22px; height: 22px; flex: none; }
  .rating-badge .rb-score { font-size: 1.05rem; font-weight: 700; }
  .rating-badge .rb-stars { color: #fbbc04; font-size: .82rem; letter-spacing: .1em; }
  .rating-badge .rb-count { font-size: .82rem; color: var(--ink-soft); }
  .rating-badge .rb-divider { width: 1px; height: 22px; background: var(--line); }

  /* ---------- FAQ ---------- */
  .faq-section { padding: clamp(5rem, 10vw, 7rem) 0; }
  .faq-groups {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 3rem;
  }
  @media (max-width: 900px) { .faq-groups { grid-template-columns: 1fr; gap: 2.75rem; } }
  .faq-group h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 1rem; }
  .faq-group details {
    border-top: 1px solid var(--line);
    padding: .9rem 0;
  }
  .faq-group details:last-of-type { border-bottom: 1px solid var(--line); }
  .faq-group summary {
    cursor: pointer;
    font-size: .92rem;
    font-weight: 500;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
  }
  .faq-group summary::-webkit-details-marker { display: none; }
  .faq-group summary::after {
    content: "+";
    flex: none;
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--ink-soft);
    transition: transform .2s ease;
  }
  .faq-group details[open] summary::after { content: "−"; }
  .faq-group details p {
    font-size: .88rem;
    line-height: 1.6;
    color: var(--ink-soft);
    margin-top: .75rem;
  }

  /* ---------- CTA + form ---------- */
  .cta-section { padding: clamp(5rem, 10vw, 7rem) 0 clamp(4rem, 8vw, 5rem); }
  .cta-section h2 { font-size: clamp(2.4rem, 5vw, 3.5rem); }
  .contact-tiles {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin: 3rem 0 4rem;
  }
  @media (max-width: 860px) { .contact-tiles { grid-template-columns: 1fr 1fr; } }
  .contact-tile {
    background: var(--bg-alt);
    border-radius: 18px;
    padding: 1.5rem 1.25rem;
    text-align: center;
  }
  .contact-tile svg { width: 22px; height: 22px; color: var(--accent); margin: 0 auto .8rem; }
  .contact-tile .t-label { font-size: .74rem; color: var(--ink-soft); margin-bottom: .3rem; text-transform: uppercase; letter-spacing: 0.03em; }
  .contact-tile .t-value { font-size: .95rem; font-weight: 600; }

  form.quote-form {
    max-width: 620px;
    margin: 0 auto;
    text-align: left;
  }
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
  @media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
  .field { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1rem; }
  .field label { font-size: .78rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.03em; }
  .field input, .field select, .field textarea {
    font: inherit;
    font-size: .98rem;
    padding: .8rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--ink);
    transition: border-color .15s ease, box-shadow .15s ease;
  }
  .field input:focus, .field select:focus, .field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
  }
  .field textarea { resize: vertical; min-height: 100px; }
  .field-hint { color: var(--ink-soft); font-weight: 400; }

  .file-drop {
    position: relative;
    border: 1.5px dashed var(--line);
    border-radius: 14px;
    padding: 1.5rem 1rem;
    text-align: center;
    transition: border-color .15s ease, background .15s ease;
  }
  .file-drop:hover, .file-drop.is-dragover { border-color: var(--accent); background: var(--bg-alt); }
  .file-drop input[type="file"] {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
  }
  .file-drop-hint { display: flex; flex-direction: column; align-items: center; gap: .5rem; color: var(--ink-soft); font-size: .85rem; pointer-events: none; }
  .file-drop-hint svg { width: 24px; height: 24px; color: var(--ink-soft); }
  .file-list { list-style: none; margin: .75rem 0 0; padding: 0; display: flex; flex-direction: column; gap: .5rem; }
  .file-list:empty { margin: 0; }
  .file-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: .55rem .8rem;
    border-radius: 10px;
    background: var(--bg-alt);
    font-size: .82rem;
  }
  .file-list .file-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .file-list .file-size { color: var(--ink-soft); flex: none; margin-left: .5rem; }
  .file-list .file-remove {
    flex: none;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--ink-soft);
  }
  .file-list .file-remove:hover { background: var(--line); color: var(--ink); }
  .file-list .file-remove svg { width: 12px; height: 12px; }
  .file-error { display: none; color: #ff6b6b; font-size: .8rem; margin: .5rem 0 0; }
  .file-error.is-visible { display: block; }

  .form-section-title {
    font-size: .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--accent);
    margin: 2rem 0 .9rem;
  }
  .form-fields > .form-section-title:first-child { margin-top: 0; }
  .checkbox-field {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: .9rem;
    color: var(--ink);
    margin-bottom: 1rem;
    cursor: pointer;
  }
  .checkbox-field input { width: 17px; height: 17px; accent-color: var(--accent); flex: none; }
  .site-fields { margin-top: .25rem; }
  .site-fields.is-hidden { display: none; }
  .date-wish-box {
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.25rem 1.25rem .5rem;
    background: var(--bg-alt);
  }
  .date-wish-note { font-size: .78rem; line-height: 1.55; color: var(--ink-soft); margin: .25rem 0 1rem; }

  form.quote-form .btn-pill { width: 100%; margin-top: .3rem; }
  .form-success { display: none; text-align: center; padding: 3rem 1rem; }
  .form-success svg { width: 44px; height: 44px; color: var(--accent); margin: 0 auto 1rem; }
  .form-success h3 { font-size: 1.3rem; margin-bottom: .5rem; }
  .form-success p { color: var(--ink-soft); }
  form.quote-form.is-sent .form-fields { display: none; }
  form.quote-form.is-sent .form-success { display: block; }

  /* ---------- Footer ---------- */
  footer { background: var(--bg-alt); padding: clamp(2.5rem, 5vw, 3.5rem) 0 1.75rem; }
  .footer-top {
    font-size: .78rem;
    color: var(--ink-soft);
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--line);
  }
  .footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--line);
  }
  @media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
  .footer-col h5 { font-size: .78rem; font-weight: 600; margin-bottom: .9rem; text-transform: uppercase; letter-spacing: 0.03em; }
  .footer-col ul { display: flex; flex-direction: column; gap: .65rem; }
  .footer-col a, .footer-col span { font-size: .8rem; color: var(--ink-soft); }
  .footer-col a:hover { color: var(--ink); }
  .footer-bottom {
    display: flex; justify-content: space-between; flex-wrap: wrap; gap: .75rem;
    padding-top: 1.25rem;
    font-size: .78rem; color: var(--ink-soft);
  }
  .footer-bottom ul { display: flex; gap: 1.25rem; }
  .footer-bottom a:hover { color: var(--ink); }

  /* ---------- Legal (Impressum) ---------- */
  .legal-section {
    display: none;
    background: var(--bg);
    padding: clamp(3.5rem, 7vw, 5rem) 0 5rem;
  }
  .legal-section:target {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 200;
    overflow-y: auto;
  }
  .legal-box { max-width: 680px; }
  .legal-box .back-link { margin-bottom: 2rem; }
  .legal-box h2 { font-size: clamp(1.8rem, 3.4vw, 2.3rem); margin-bottom: 2.2rem; }
  .legal-box h3 { font-size: .95rem; font-weight: 600; margin: 2rem 0 .6rem; }
  .legal-box h3:first-of-type { margin-top: 0; }
  .legal-box p, .legal-box address { font-size: .92rem; line-height: 1.7; color: var(--ink-soft); font-style: normal; margin: 0 0 .3rem; }
  .legal-box .bildquellen { font-size: .8rem; color: var(--ink-soft); opacity: .8; line-height: 1.7; }
  .legal-box a.inline-link { color: var(--accent); }
  .legal-box ul, .legal-box ol { margin: 0 0 1rem; padding-left: 1.3rem; color: var(--ink-soft); font-size: .92rem; line-height: 1.7; }
  .legal-box li { margin-bottom: .5rem; }
  .legal-box strong, .legal-box b { color: var(--ink); font-weight: 600; }
  .legal-box .updated-note { font-size: .8rem; color: var(--ink-soft); opacity: .8; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }

  /* ---------- WhatsApp widget ---------- */
  .whatsapp-widget {
    position: fixed;
    right: clamp(1.1rem, 3vw, 1.75rem);
    bottom: clamp(1.1rem, 3vw, 1.75rem);
    z-index: 90;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: .75rem;
  }
  .whatsapp-fab {
    width: 56px;
    height: 56px;
    flex: none;
    border-radius: 50%;
    background: #25d366;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(0,0,0,.22), 0 2px 4px rgba(0,0,0,.15);
    transition: transform .2s ease, box-shadow .2s ease;
    animation: fab-in .5s cubic-bezier(.16,1,.3,1) .3s backwards;
  }
  .whatsapp-fab:hover { transform: scale(1.06); box-shadow: 0 6px 18px rgba(0,0,0,.28), 0 3px 6px rgba(0,0,0,.18); }
  .whatsapp-fab:active { transform: scale(.96); }
  .whatsapp-fab svg { width: 28px; height: 28px; color: #fff; }
  @keyframes fab-in { from { opacity: 0; transform: translateY(16px) scale(.9); } to { opacity: 1; transform: translateY(0) scale(1); } }
  @media (prefers-reduced-motion: reduce) { .whatsapp-fab { animation: none; } }

  .whatsapp-bubble {
    position: relative;
    width: min(272px, 78vw);
    background: var(--card-1);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    box-shadow: var(--shadow);
    padding: 1rem 1.1rem 1.1rem;
    animation: fab-in .5s cubic-bezier(.16,1,.3,1) .6s backwards;
  }
  .whatsapp-bubble.is-hidden { display: none; }
  .whatsapp-bubble-close {
    position: absolute;
    top: .55rem;
    right: .55rem;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ink-soft);
    border-radius: 50%;
    transition: background .15s ease;
  }
  .whatsapp-bubble-close:hover { background: var(--bg-alt); }
  .whatsapp-bubble-close svg { width: 13px; height: 13px; }
  .whatsapp-bubble-head { display: flex; align-items: center; gap: .65rem; margin-bottom: .65rem; padding-right: 1.4rem; }
  .whatsapp-avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--bg-alt);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    flex: none;
  }
  .whatsapp-avatar img { width: 22px; height: 22px; object-fit: contain; }
  .whatsapp-name { font-size: .88rem; font-weight: 600; }
  .whatsapp-status { font-size: .74rem; color: var(--ink-soft); }
  .whatsapp-bubble-text { font-size: .85rem; line-height: 1.5; color: var(--ink); margin-bottom: .9rem; }
  .whatsapp-bubble-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: .6rem;
    border-radius: 980px;
    background: #25d366;
    color: #fff;
    font-size: .85rem;
    font-weight: 600;
    transition: opacity .2s ease;
  }
  .whatsapp-bubble-cta:hover { opacity: .88; }