/* ===== Seite Dachbeschichtung ===== */
.bs { --stein-rot: #a42423; }
/* clip statt hidden: kein Scroll-Container, damit das Dach beim Scrollen stehen bleiben kann */
html:has(body.bs), body.bs { overflow-x: clip; overflow-y: visible; }
.bs .text-link { color: #a42423; font-weight: 700; text-decoration: none; border-bottom: 2px solid currentColor; }
.bs .giebel--dunkel .text-link { color: #ef6a60; }

/* Hero */
.bs-hero { position: relative; isolation: isolate; overflow: hidden; background: #0e1418; padding: 130px 0 calc(var(--giebel) + 70px); }
.bs-hero > .bs-hero-bild { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; filter: saturate(.85); }
.bs-hero-schleier { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(14,20,24,.96) 0, rgba(14,20,24,.86) 42%, rgba(14,20,24,.35) 75%, rgba(14,20,24,.2)), linear-gradient(0deg, #0e1418 0, transparent 30%); }
.bs-hero .h1 { margin-top: 14px; }
.bs-hero .lead { max-width: 560px; margin-top: 18px; color: #dfe5e8; }
.bs-hero .knoepfe { margin-top: 26px; }
.krumen { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; font-size: .8rem; color: #a8b3b9; }
.krumen a { color: #a8b3b9; text-decoration: none; }
.krumen a:hover { color: #fff; }
.bs-fakten { list-style: none; margin: 36px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); max-width: 760px; border-top: 1px solid rgba(255,255,255,.14); }
.bs-fakten li { min-width: 0; padding: 16px 16px 0 0; }
.bs-fakten li + li { padding-left: 16px; border-left: 1px solid rgba(255,255,255,.14); }
.bs-fakten b { display: block; font: 700 1.9rem/1 var(--titel); color: #fff; }
.bs-fakten span { display: block; margin-top: 6px; font-size: .82rem; color: #a8b3b9; }

/* Material-Ampel */
.ampel { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(0,1fr); gap: clamp(20px,4vw,48px); margin-top: 36px; align-items: start; }
.ampel-wahl { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; }
.ampel-wahl button { position: relative; display: flex; flex-direction: column; min-width: 0; padding: 0; overflow: hidden; border-radius: 14px; border: 2px solid #d3c9ba; background: #fff; cursor: pointer; text-align: left; font: inherit; color: #1b2227; box-shadow: 0 4px 0 #d3c9ba; transition: transform .2s, box-shadow .2s, border-color .2s; }
.ampel-wahl button:hover { transform: translateY(-3px); box-shadow: 0 7px 0 #d3c9ba; }
.ampel-wahl button:active { transform: translateY(3px); box-shadow: 0 1px 0 #d3c9ba; }
.ampel-wahl button[aria-selected="true"] { border-color: #a42423; box-shadow: 0 4px 0 #a42423; }
.ampel-wahl img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.ampel-wahl .ki { position: absolute; left: 6px; top: 6px; padding: 2px 6px; border-radius: 4px; background: rgba(14,20,24,.75); color: #fff; font: 600 .58rem/1.3 var(--text-font); font-style: normal; }
.am-asbest { display: grid; place-items: center; aspect-ratio: 4 / 3; background: repeating-linear-gradient(-45deg, #f3d23c 0 14px, #1b2227 14px 28px); font: 700 3rem/1 var(--titel); color: #fff; text-shadow: 0 2px 6px rgba(0,0,0,.6); }
.ampel-wahl button > span:last-child { display: flex; align-items: center; gap: 8px; padding: 10px 12px; font-weight: 700; font-size: .9rem; line-height: 1.2; }
.ampel-wahl i, .ampel-text .am-urteil::before { flex: none; width: 12px; height: 12px; border-radius: 50%; background: var(--am); box-shadow: 0 0 0 3px color-mix(in srgb, var(--am) 25%, transparent); }
.gruen { --am: #2e9e62; } .gelb { --am: #d99a1e; } .rot { --am: #c4342d; }
.ampel-text { position: relative; padding: 26px; border-radius: 18px; background: #fff; border: 2px solid #d3c9ba; box-shadow: 0 18px 40px -26px rgba(40,30,20,.45); }
.ampel-text [role="tabpanel"] { border-left: 5px solid var(--am); padding-left: 18px; }
.am-urteil { display: flex; align-items: center; gap: 10px; margin: 0; font: 700 .8rem/1 var(--text-font); letter-spacing: .14em; text-transform: uppercase; color: var(--am); }
.am-urteil::before { content: ""; display: block; }
.ampel-text .h3 { margin-top: 10px; }
.ampel-text p:not(.am-urteil) { margin-top: 10px; }
.ampel-text .knopf-2z { margin-top: 22px; }

/* Schicht für Schicht */
.schicht-buehne { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0,1fr); gap: clamp(28px,5vw,72px); margin-top: 40px; }
.schicht-bild-spalte { position: sticky; top: 100px; align-self: start; }
.schicht-bild { position: relative; margin: 0; border-radius: 18px; overflow: hidden; aspect-ratio: 4 / 3; box-shadow: 0 40px 70px -40px rgba(0,0,0,.9), 0 0 0 1px rgba(255,255,255,.08); }
.schicht-bild > img, .schicht-bild .sb, .schicht-bild .sb-sauber img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.schicht-bild > img { filter: saturate(.55) brightness(.75) contrast(1.05); }
.sb { display: block; transition: clip-path 1s cubic-bezier(.6,0,.2,1), opacity .8s; clip-path: inset(0 0 100% 0); }
.sb-moos { clip-path: none; background: radial-gradient(60% 40% at 30% 60%, rgba(78,96,36,.55), transparent 70%), radial-gradient(50% 35% at 75% 35%, rgba(60,80,30,.5), transparent 70%), rgba(70,80,40,.28); mix-blend-mode: multiply; transition: opacity .8s; }
.sb-sauber img { filter: saturate(1.05) brightness(1.02); }
.sb-sauber { filter: none; }
.sb-grund { background: rgba(185,182,176,.92); mix-blend-mode: color; }
.sb-farbe1 { background: var(--f); mix-blend-mode: color; opacity: .9; }
.sb-farbe2 { background: var(--f); mix-blend-mode: multiply; opacity: .7; }
.sb-nano { mix-blend-mode: screen; background: linear-gradient(115deg, transparent 35%, rgba(255,255,255,.28) 48%, transparent 60%) 0 0 / 250% 100%; }
.sb-nano i { position: absolute; width: 14px; height: 14px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #fff, rgba(255,255,255,.35) 40%, rgba(255,255,255,.05) 70%); box-shadow: 0 2px 3px rgba(0,0,0,.35); opacity: 0; transform: scale(.4); transition: opacity .5s, transform .6s cubic-bezier(.3,1.6,.5,1); }
.sb-nano i:nth-child(1) { left: 22%; top: 30%; } .sb-nano i:nth-child(2) { left: 48%; top: 52%; width: 18px; height: 18px; } .sb-nano i:nth-child(3) { left: 70%; top: 26%; } .sb-nano i:nth-child(4) { left: 34%; top: 68%; width: 10px; height: 10px; } .sb-nano i:nth-child(5) { left: 80%; top: 60%; } .sb-nano i:nth-child(6) { left: 58%; top: 18%; width: 11px; height: 11px; }
.schicht-bild[data-stufe="1"] .sb-moos, .schicht-bild[data-stufe="2"] .sb-moos, .schicht-bild[data-stufe="3"] .sb-moos, .schicht-bild[data-stufe="4"] .sb-moos, .schicht-bild[data-stufe="5"] .sb-moos, .schicht-bild[data-stufe="6"] .sb-moos, .schicht-bild[data-stufe="7"] .sb-moos { opacity: 0; }
.schicht-bild:is([data-stufe="1"],[data-stufe="2"],[data-stufe="3"],[data-stufe="4"],[data-stufe="5"],[data-stufe="6"],[data-stufe="7"]) .sb-sauber,
.schicht-bild:is([data-stufe="4"],[data-stufe="5"],[data-stufe="6"],[data-stufe="7"]) .sb-grund,
.schicht-bild:is([data-stufe="5"],[data-stufe="6"],[data-stufe="7"]) .sb-farbe1,
.schicht-bild:is([data-stufe="6"],[data-stufe="7"]) .sb-farbe2,
.schicht-bild[data-stufe="7"] .sb-nano { clip-path: inset(0 0 0 0); }
.schicht-bild[data-stufe="2"] .sb-sauber img { filter: saturate(.9) brightness(1.08) hue-rotate(-8deg); }
.schicht-bild[data-stufe="7"] .sb-nano { animation: nano-glanz 3.2s ease-in-out infinite; }
.schicht-bild[data-stufe="7"] .sb-nano i { opacity: 1; transform: none; }
@keyframes nano-glanz { from { background-position: 120% 0; } to { background-position: -120% 0; } }
.schicht-bild figcaption { position: absolute; left: 14px; bottom: 14px; z-index: 3; display: flex; flex-direction: column; gap: 2px; padding: 10px 14px; border-radius: 10px; background: rgba(14,20,24,.82); }
.schicht-bild figcaption b { font: 700 1.2rem/1 var(--titel); letter-spacing: .04em; text-transform: uppercase; color: #fff; }
.schicht-bild figcaption span { font-size: .7rem; color: #a8b3b9; }
.stapel { position: absolute; right: 14px; bottom: 14px; z-index: 3; list-style: none; margin: 0; padding: 8px; width: 132px; border-radius: 10px; background: rgba(14,20,24,.82); display: flex; flex-direction: column; gap: 3px; }
.stapel li { padding: 4px 8px; border-radius: 4px; font: 600 .66rem/1.2 var(--text-font); color: #fff; opacity: .18; transform: translateX(12px); transition: opacity .5s, transform .5s cubic-bezier(.3,1.4,.5,1); }
.stapel .st-s { background: #6b5d55; opacity: 1; transform: none; }
.stapel .st-g { background: #8d8a84; }
.stapel .st-1 { background: color-mix(in srgb, var(--f) 75%, #fff); }
.stapel .st-2 { background: var(--f); }
.stapel .st-n { background: linear-gradient(90deg, #3b6f7a, #7fb7c2); }
.schicht-bild:is([data-stufe="4"],[data-stufe="5"],[data-stufe="6"],[data-stufe="7"]) .st-g,
.schicht-bild:is([data-stufe="5"],[data-stufe="6"],[data-stufe="7"]) .st-1,
.schicht-bild:is([data-stufe="6"],[data-stufe="7"]) .st-2,
.schicht-bild[data-stufe="7"] .st-n { opacity: 1; transform: none; }
.schicht-farbe { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px 16px; margin-top: 14px; }
.schicht-farbe p { margin: 0; font-size: .9rem; color: #a8b3b9; }
.schicht-farbe b { color: #fff; }
.mini-steine { display: flex; gap: 6px; }
.mini-steine button { width: 30px; height: 38px; padding: 0; border: 2px solid rgba(255,255,255,.25); border-radius: 5px 5px 40% 40% / 5px 5px 18% 18%; background: linear-gradient(90deg, rgba(255,255,255,.22), transparent 30%, transparent 55%, rgba(0,0,0,.25)), var(--f); cursor: pointer; transition: transform .2s, border-color .2s; }
.mini-steine button:hover { transform: translateY(-3px); }
.mini-steine button[aria-pressed="true"] { border-color: #fff; box-shadow: 0 0 0 2px #a42423; transform: translateY(-3px); }
.schicht-schritte { list-style: none; margin: 0; padding: 0; }
.schicht-schritte li { position: relative; min-height: 42vh; padding: 22px 0 22px 34px; border-left: 2px solid rgba(255,255,255,.1); opacity: .38; transition: opacity .4s, border-color .4s; }
.schicht-schritte li:last-child { min-height: 0; }
.shot .schicht-schritte li { min-height: 300px; } .shot .schicht-schritte li:last-child { min-height: 0; }
.schicht-schritte li::before { content: ""; position: absolute; left: -9px; top: 28px; width: 16px; height: 16px; border-radius: 50%; background: #0e1418; border: 2px solid rgba(255,255,255,.3); transition: background .3s, border-color .3s; }
.schicht-schritte li.an { opacity: 1; border-left-color: #a42423; }
.schicht-schritte li.an::before { background: #a42423; border-color: #a42423; box-shadow: 0 0 0 5px rgba(164,36,35,.25); }
.ss-tag { display: inline-block; font: 600 .7rem/1 var(--text-font); letter-spacing: .12em; text-transform: uppercase; color: #ef6a60; }
.schicht-schritte h3 { margin: 8px 0 0; font-size: clamp(1.6rem, 2.6vw, 2.2rem); line-height: 1; text-transform: uppercase; color: #fff; }
.schicht-schritte p { margin: 10px 0 0; color: #c3ccd1; max-width: 46ch; }
.schicht-schritte a { color: #ef6a60; }
.ss-mehr { display: inline-block; margin-top: 16px; font-weight: 700; text-decoration: none; }

/* Kann / kann nicht */
.waage { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0; margin-top: 36px; border-radius: 18px; overflow: hidden; box-shadow: 0 30px 60px -40px rgba(40,30,20,.6); }
.waage-seite { min-width: 0; padding: clamp(22px,3vw,36px); }
.waage--ja { background: #eef6f0; }
.waage--nein { background: #fbeceb; }
.w-kopf { display: flex; align-items: center; gap: 12px; margin: 0; font: 700 1.5rem/1 var(--titel); text-transform: uppercase; color: #1b2227; }
.w-kopf i { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; font-style: normal; font-size: 1.1rem; color: #fff; }
.waage--ja .w-kopf i { background: #2e9e62; } .waage--nein .w-kopf i { background: #c4342d; }
.waage ul { list-style: none; margin: 18px 0 0; padding: 0; }
.waage li { padding: 12px 0; border-top: 1px solid rgba(27,34,39,.1); font-weight: 600; color: #26313a; }

/* Garantie */
.garantie-raster { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0,.9fr); gap: clamp(28px,5vw,72px); align-items: center; }
.urkunde { position: relative; padding: 34px 32px 30px; border-radius: 6px; background: linear-gradient(180deg, #fffdf8, #f7f1e6); border: 1px solid #d9cdb8; box-shadow: 0 30px 50px -30px rgba(40,30,20,.55), inset 0 0 0 8px #fffdf8, inset 0 0 0 9px #c9a24a; transform: rotate(1.5deg); text-align: center; color: #1b2227; }
.u-kopf { margin: 0; font: 700 .8rem/1 var(--text-font); letter-spacing: .3em; text-transform: uppercase; color: #8c1d1a; }
.u-zahl { margin: 14px 0 0; font-size: 1.6rem; text-transform: uppercase; }
.u-zahl b { display: block; font-size: 6rem; line-height: .9; color: #a42423; }
.u-text { margin: 8px auto 0; max-width: 28ch; font-size: .9rem; color: #4d5960; }
.u-daten { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; margin: 22px 0 0; padding-top: 16px; border-top: 1px dashed #c9bda6; text-align: left; }
.u-daten dt { font-size: .66rem; letter-spacing: .14em; text-transform: uppercase; color: #6f7a80; }
.u-daten dd { margin: 4px 0 0; font-size: .86rem; font-weight: 700; }
.u-sign { display: block; margin-top: 18px; font: 600 2rem/1 'Dancing Script', cursive; color: #1d3a7a; }
.u-siegel { position: absolute; right: -14px; top: -14px; display: grid; place-items: center; width: 84px; height: 84px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #d04640, #a42423 60%, #7c1715); color: #fff; font: 600 .7rem/1.05 var(--text-font); letter-spacing: .1em; text-transform: uppercase; box-shadow: 0 8px 18px rgba(0,0,0,.3); transform: rotate(-10deg); }
.u-siegel b { font: 700 1.5rem/1 var(--titel); letter-spacing: .02em; }
/* Urkunde als Canva-Design: Szene mit echtem Hausfoto, Urkunde schräg davor */
.ub-buehne { position: relative; margin: 0; min-width: 0; padding: 0 0 60px; }
.ub-haus { display: block; width: 86%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; object-position: 60% 50%; border-radius: 18px; box-shadow: 0 40px 70px -40px rgba(0,0,0,.7); }
.ub-buehne .urkunde-bild { position: absolute; right: 0; bottom: 0; width: 46%; max-width: 270px; transform: rotate(-7deg); transform-origin: 60% 90%; transition: transform .5s cubic-bezier(.3,1.4,.5,1); }
.ub-buehne:hover .urkunde-bild { transform: rotate(-2deg) translateY(-10px) scale(1.04); }
.ub-buehne figcaption { position: absolute; left: 14px; top: 14px; display: flex; flex-direction: column; gap: 2px; padding: 10px 14px; border-radius: 10px; background: rgba(14,20,24,.84); color: #fff; }
.ub-buehne figcaption b { font: 700 1.3rem/1 var(--titel); text-transform: uppercase; letter-spacing: .03em; color: #fff; }
.ub-buehne figcaption span { font-size: .78rem; color: #c3ccd1; }
.urkunde-bild { margin: 0; }
.urkunde-bild img { display: block; width: 100%; height: auto; border-radius: 4px; box-shadow: 0 2px 0 #e7dfcf, 0 30px 50px -18px rgba(0,0,0,.65), 0 10px 20px -10px rgba(0,0,0,.4); }
.urkunde-bild { position: relative; }
/* „Muster“ dünn und senkrecht am linken Rand der Urkunde (Garantie- und Dachbeschichtungsseite) */
.u-muster { position: absolute; left: 3.2%; top: 50%; transform: translate(-50%, -50%) rotate(-90deg); font: 300 clamp(.5rem, 1.6vw, .72rem)/1 var(--text-font); letter-spacing: .55em; text-transform: uppercase; color: rgba(164,36,35,.55); pointer-events: none; white-space: nowrap; }

/* Seriös erkennen */
.gegenueber { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; margin-top: 36px; }
.g-seite { min-width: 0; padding: 26px; border-radius: 18px; background: #fff; border: 2px solid #d3c9ba; }
.g-gut { border-color: #2e9e62; box-shadow: 0 5px 0 #2e9e62; }
.g-schlecht { background: #faf6f0; border-style: dashed; }
.g-kopf { margin: 0; font-size: 1.5rem; text-transform: uppercase; }
.g-gut .g-kopf { color: #1f7a4a; } .g-schlecht .g-kopf { color: #a42423; }
.gegenueber ul { list-style: none; margin: 14px 0 0; padding: 0; }
.gegenueber li { position: relative; padding: 10px 0 10px 30px; border-top: 1px solid rgba(27,34,39,.08); }
.gegenueber li::before { position: absolute; left: 0; top: 10px; font-weight: 700; }
.g-gut li::before { content: "✓"; color: #2e9e62; } .g-schlecht li::before { content: "✕"; color: #c4342d; }
.g-schlecht li { color: #4d5960; }

/* Fragen als Zettel */
.zettel-wand { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; margin-top: 36px; align-items: start; }
.zettel { position: relative; min-width: 0; padding: 26px 22px 20px; background: #fffbea; border-radius: 2px; box-shadow: 0 14px 24px -14px rgba(40,30,20,.5); transform: rotate(var(--dreh, -1deg)); transition: transform .3s; }
.zettel:nth-child(2n) { --dreh: 1.2deg; background: #fff; } .zettel:nth-child(3n) { --dreh: -.6deg; background: #f6efe3; }
.zettel { transition: transform .4s cubic-bezier(.3,1.4,.5,1), box-shadow .4s, background-color .3s; }
.zettel::before { transition: transform .4s cubic-bezier(.3,1.4,.5,1), background-color .3s; }
.zettel summary { transition: color .25s; }
@media (hover: hover) {
  .zettel:hover, .zettel:focus-within { z-index: 2; transform: rotate(0) translateY(-8px) scale(1.025); box-shadow: 0 34px 44px -24px rgba(40,30,20,.55), 0 0 0 1px rgba(164,36,35,.18); }
  .zettel:hover::before, .zettel:focus-within::before { transform: rotate(2deg) scaleX(1.12); background: rgba(164,36,35,.4); }
  .zettel:hover summary { color: #a42423; }
}
.zettel::before { content: ""; position: absolute; left: 50%; top: -10px; width: 84px; height: 22px; margin-left: -42px; background: rgba(164,36,35,.22); transform: rotate(-3deg); }
.zettel summary { position: relative; list-style: none; cursor: default; font: 700 1.25rem/1.15 var(--titel); text-transform: uppercase; color: #1b2227; }
.zettel summary:focus-visible { outline: 3px solid #a42423; outline-offset: 4px; }
.zettel summary::-webkit-details-marker { display: none; }
.zettel p { margin: 12px 0 0; color: #3c4a52; }

@media (max-width: 960px) {
  .ampel, .schicht-buehne, .garantie-raster { grid-template-columns: 1fr; }
  .ampel-wahl { grid-template-columns: repeat(5, minmax(150px,1fr)); overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; }
  .ampel-wahl button { scroll-snap-align: start; }
  .schicht-bild-spalte { top: 76px; z-index: 2; background: #0e1418; padding-bottom: 10px; }
  .schicht-schritte li { min-height: 0; padding-block: 18px 26px; }
  .zettel-wand { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .urkunde { max-width: 440px; justify-self: center; }
  .ub-buehne { max-width: 560px; justify-self: center; width: 100%; }
}
@media (max-width: 600px) {
  .bs-hero { padding: 110px 0 calc(var(--giebel) + 50px); }
  .bs-hero .h1 { max-width: calc(100vw - 80px); }
  .bs-hero .knoepfe .knopf { width: 100%; }
  .bs-fakten { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .bs-fakten { position: relative; grid-auto-rows: 1fr; border-bottom: 1px solid rgba(255,255,255,.14); }
  .bs-fakten li, .bs-fakten li + li { display: flex; flex-direction: column; align-items: center; padding: 18px 8px; text-align: center; }
  .bs-fakten li:nth-child(3) { border-left: 0; }
  .bs-fakten li:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.14); }
  .bs-fakten li::before { content: ""; width: 20px; height: 3px; margin-bottom: 12px; border-radius: 2px; background: #a42423; }
  .bs-fakten::after { content: ""; position: absolute; left: 50%; top: 50%; width: 9px; height: 9px; margin: -4.5px 0 0 -4.5px; background: #a42423; transform: rotate(45deg); }
  .bs-fakten b { font-size: 1.5rem; }
  .ampel-wahl { grid-template-columns: repeat(5, minmax(140px,1fr)); }
  .ampel-wahl button > span:last-child { font-size: .8rem; padding: 9px 10px; }
  .ampel-text { padding: 20px; }
  .schicht-bild { aspect-ratio: 16 / 9; }
  .stapel { width: 104px; padding: 6px; right: 8px; bottom: 8px; }
  .stapel li { font-size: .58rem; padding: 2px 6px; }
  .schicht-bild figcaption { left: 8px; bottom: 8px; padding: 6px 10px; }
  .schicht-bild figcaption b { font-size: 1rem; }
  .schicht-bild figcaption span { display: none; }
  .mini-steine button { width: 26px; height: 32px; }
  .schicht-schritte h3 { font-size: 1.4rem; }
  .waage, .gegenueber, .zettel-wand { grid-template-columns: 1fr; }
  .zettel { padding: 20px 18px 16px; }
  .zettel summary { cursor: pointer; padding-right: 40px; }
  .zettel summary::after { content: ""; position: absolute; right: 0; top: -2px; width: 28px; height: 28px; border-radius: 50%; background: #a42423 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M12 6v12M6 12h12'/%3E%3C/svg%3E") center / 14px no-repeat; transition: transform .25s; }
  .zettel[open] summary::after { transform: rotate(45deg); }
  .zettel summary { font-size: 1.1rem; }
  .u-zahl b { font-size: 4.5rem; }
  .u-siegel { right: -6px; width: 68px; height: 68px; }
}
@media (prefers-reduced-motion: reduce) { .sb, .stapel li, .zettel, .zettel::before { transition: none; } .schicht-bild[data-stufe="7"] .sb-nano { animation: none; } }

/* Zentriert: kurze Kacheln mit Symbol, Titel und ein bis zwei Sätzen sowie die Weiter-Links am Seitenende.
   Längere Texte, Listen, Preise und Zeitstrahlen bleiben linksbündig. */
.faktoren li, .dachtypen li, .ms-weg li, .hs-weg li, .ab-fakten li { text-align: center; }
.faktoren .fk-ic, .dachtypen .fk-ic, .ms-weg .fk-ic, .hs-weg .fk-ic, .ab-fakten .fk-ic { margin-inline: auto; }
.fd-weiter a, .fa-weiter a, .ms-weiter a, .hs-weiter a, .bv-weiter a, .ab-weiter a { align-items: center; text-align: center; }