/* ==========================================================================
   Baugeschichte – große Meilensteine als ein Beitrag mit allen Phasen
   (Neues Schulgebäude, Haus der Lehrer). Seiten erzeugt von scripts/baugeschichte.py,
   Verhalten in js/baugeschichte.js: Die Zeichnung links baut sich beim Scrollen auf.
   ========================================================================== */

.bau{--bau-top:96px;--ziegel:#c46a3a;--ziegel-dunkel:#8f4523;--creme:#fff8ec;--sand:#f3e2c4;}

/* ---------- Einstieg ---------- */
.bau-intro{max-width:860px;margin:0 auto;text-align:center;}
.bau-intro .post-meta{justify-content:center;}
.bau-lead{font-size:20px;line-height:1.6;color:#3b4046;margin:10px 0 0;}
.bau-fakten{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin:28px 0 0;padding:0;list-style:none;}
.bau-fakten li{background:#fff;border-radius:16px;padding:12px 18px 11px;box-shadow:0 12px 30px -18px rgba(18,40,30,.35);border:1px solid #eef0ec;min-width:132px;}
.bau-fakten b{display:block;font-family:'Baloo 2',sans-serif;font-weight:800;font-size:26px;line-height:1.05;color:var(--green);}
.bau-fakten span{font-size:13px;color:#6a7178;}

/* ---------- Bühne + Phasen ---------- */
.bau-layout{display:grid;grid-template-columns:minmax(300px,430px) minmax(0,1fr);gap:56px;align-items:start;margin-top:56px;}
.bau-buehne{position:sticky;top:var(--bau-top);z-index:4;}
.bau-karte{background:linear-gradient(180deg,#fdf1dc 0%,#fff8ec 55%,#fff 100%);border-radius:24px;padding:22px 22px 18px;box-shadow:0 30px 70px -36px rgba(80,45,10,.45);border:1px solid #f1e3c8;}
.bau-svg{display:block;width:100%;height:auto;overflow:visible;}
.bau-titel{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin:12px 4px 12px;min-height:26px;}
.bau-titel b{font-family:'Baloo 2',sans-serif;font-weight:800;font-size:19px;color:var(--ink);line-height:1.15;}
.bau-titel span{font-size:13px;color:#8a6a45;white-space:nowrap;}
.bau-balken{height:6px;border-radius:99px;background:#f0e2c8;overflow:hidden;margin:0 4px 14px;}
.bau-balken i{display:block;height:100%;width:0;border-radius:inherit;background:linear-gradient(90deg,var(--green),#5fe0a3);transition:width .35s ease;}
.bau-schritte{list-style:none;margin:0;padding:0;display:grid;gap:4px;}
.bau-schritte a{display:flex;align-items:center;gap:10px;padding:7px 8px;border-radius:12px;color:#4a5056;font-size:14.5px;text-decoration:none;transition:background .2s,color .2s;}
.bau-schritte a:hover{background:rgba(23,155,103,.08);}
.bau-schritte i{flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-weight:700;font-size:12.5px;border:2px solid #d9cdb6;color:#9a8a6e;background:#fff;transition:all .3s;}
.bau-schritte .aktiv a{background:rgba(245,166,35,.12);color:var(--ink);font-weight:600;}
.bau-schritte .aktiv i{border-color:var(--orange);color:var(--orange);}
.bau-schritte .fertig i{background:var(--green);border-color:var(--green);color:#fff;}
.bau-schritte .offen i{border-style:dashed;}
.bau-schritte small{margin-left:auto;font-size:12px;color:#9a8a6e;}

/* ---------- Phasen-Spalte ---------- */
.bau-phasen{position:relative;}
.bau-phase{position:relative;padding:0 0 70px 66px;scroll-margin-top:calc(var(--bau-top) + 10px);}
.bau-phase::before{content:"";position:absolute;left:21px;top:48px;bottom:0;width:3px;border-radius:3px;background:linear-gradient(#e7dcc8,#efe6d6);}
.bau-phase:last-child::before{display:none;}
.bau-nr{position:absolute;left:0;top:0;width:45px;height:45px;border-radius:50%;display:grid;place-items:center;font-family:'Baloo 2',sans-serif;font-weight:800;font-size:20px;color:#fff;background:var(--green);box-shadow:0 0 0 6px #fff,0 10px 22px -8px rgba(23,155,103,.6);}
.bau-phase.ist-offen .bau-nr{background:#fff;color:var(--orange);border:2.5px dashed var(--orange);box-shadow:0 0 0 6px #fff;}
.bau-kopf{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin:4px 0 6px;}
.bau-datum{font-size:13px;font-weight:600;color:#8a6a45;background:var(--sand);padding:4px 11px;border-radius:99px;}
.bau-status{font-size:12px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;padding:4px 10px;border-radius:99px;background:rgba(23,155,103,.12);color:var(--green);}
.ist-offen .bau-status{background:rgba(245,166,35,.16);color:#b36f00;}
.bau-phase h2{font-family:'Baloo 2',sans-serif;font-weight:800;font-size:clamp(26px,3vw,34px);line-height:1.1;color:var(--ink);margin:6px 0 12px;}
.bau-phase p{font-size:17px;line-height:1.7;color:#3b4046;margin:0 0 14px;}
.bau-phase ul{margin:0 0 16px;padding-left:20px;font-size:17px;line-height:1.7;color:#3b4046;}

/* kleine Einträge mit Datum innerhalb einer Phase */
.bau-eintraege{list-style:none;margin:6px 0 18px;padding:0;display:grid;gap:12px;}
.bau-eintraege li{position:relative;background:#fff;border:1px solid #efe6d6;border-radius:16px;padding:14px 16px 12px;box-shadow:0 12px 26px -22px rgba(80,45,10,.5);}
.bau-eintraege time{display:inline-block;font-size:12.5px;font-weight:700;color:var(--orange);margin-bottom:3px;letter-spacing:.3px;}
.bau-eintraege p{margin:0;font-size:16px;}

/* Fotos */
.bau-fotos{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:16px 0 6px;}
.bau-fotos img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px;cursor:zoom-in;display:block;transition:transform .35s ease,box-shadow .35s ease;box-shadow:0 10px 24px -18px rgba(0,0,0,.6);}
.bau-fotos img:hover{transform:translateY(-3px);box-shadow:0 18px 30px -18px rgba(0,0,0,.6);}
.bau-fotos img:first-child{grid-column:1 / -1;aspect-ratio:16/9;}
.bau-mehr{margin:4px 0 0;}
.bau-mehr summary{display:inline-flex;align-items:center;gap:6px;cursor:pointer;list-style:none;font-weight:600;font-size:14.5px;color:var(--green);padding:8px 14px;border-radius:99px;background:rgba(23,155,103,.08);}
.bau-mehr summary::-webkit-details-marker{display:none;}
.bau-mehr summary::after{content:"＋";font-weight:700;}
.bau-mehr[open] summary::after{content:"－";}
.bau-fotos.zwei img:first-child{grid-column:auto;aspect-ratio:4/3;}
.bau-fotos.letzte-breit img:last-child{grid-column:1 / -1;aspect-ratio:16/9;}
.bau-mehr .bau-fotos{grid-template-columns:repeat(3,1fr);}
.bau-mehr .bau-fotos img:first-child{grid-column:auto;aspect-ratio:4/3;}

/* Abschluss */
.bau-ende{margin:10px 0 0 66px;background:linear-gradient(135deg,#127a51,#179b67 60%,#36c98a);color:#fff;border-radius:22px;padding:28px 30px;box-shadow:0 26px 60px -30px rgba(23,155,103,.8);}
.bau-ende h2{font-family:"Baloo 2",sans-serif;font-weight:800;font-size:28px;line-height:1.15;margin:0 0 10px;color:#fff;}
.bau-ende p{margin:0 0 18px;font-size:17px;line-height:1.6;color:#e6fff3;}
.bau-ende .btn-orange{display:inline-block;}

/* ---------- Zeichnung: Bauteile ---------- */
.bau-svg .boden{fill:#c9a27a;}
.bau-svg .gras{fill:#7cbf5a;}
.bau-svg .baum{fill:#5aa046;}
.bau-svg .stamm{fill:#7a5532;}
.bau-svg .sonne{fill:#ffd66e;opacity:.85;}
.bau-svg .plan{fill:none;stroke:#b79a72;stroke-width:1.4;stroke-dasharray:5 4;}
.bau-svg .offen-teil{fill:rgba(245,166,35,.08);stroke:var(--orange);stroke-width:1.6;stroke-dasharray:5 4;}
.bau-svg .loch{fill:#4a2a18;}
.bau-svg .beton{fill:#a9a49b;}
.bau-svg .stahl{fill:#8fa3b3;}
.bau-svg .rille{stroke:#6f8597;stroke-width:1;}
.bau-svg .rot{fill:#b8452e;}
.bau-svg .holz{stroke:#a87a45;stroke-width:2.2;fill:none;stroke-linecap:round;}
.bau-svg .saeule{fill:#f4efe6;stroke:#d8cfbf;stroke-width:1;}
.bau-svg .tuer{fill:#3d5a46;}
.bau-svg .fenster{fill:#2f6b55;stroke:#e9e2d4;stroke-width:1.4;}
.bau-svg .laden{fill:#34414c;stroke:#56636e;stroke-width:1;}
.bau-svg .licht{fill:#ffd98a;}

/* Aufbau-Animation: jedes Teil mit data-stufe ist erst unsichtbar und erscheint, sobald es dran ist */
.bau-js .bau-svg [data-stufe]{opacity:0;transform-box:fill-box;transform-origin:50% 100%;
  transition:opacity .35s ease,transform .5s cubic-bezier(.34,1.45,.6,1);}
.bau-js .bau-svg .reihe{transform:scaleY(0);}
.bau-js .bau-svg .von-oben{transform:translateY(-26px);}
.bau-js .bau-svg .pop{transform-origin:50% 50%;transform:scale(.3);}
.bau-js .bau-svg [data-stufe].an{opacity:1;transform:none;}
.bau-js .bau-svg .plan[data-stufe].an{opacity:.9;}
.bau-svg .offen-teil.an{animation:bau-ameise 1.2s linear infinite;}
@keyframes bau-ameise{to{stroke-dashoffset:-18;}}

/* Staubwolke beim Setzen einer Ziegelreihe */
.bau-staub circle{fill:rgba(205,170,130,.7);opacity:0;}
.bau-staub.puff circle{animation:bau-puff .6s ease-out;}
.bau-staub.puff circle:nth-child(2){animation-delay:.05s}.bau-staub.puff circle:nth-child(3){animation-delay:.1s}
@keyframes bau-puff{0%{opacity:.9;transform:translate(0,0) scale(.4)}100%{opacity:0;transform:translate(var(--dx,0),-10px) scale(1.8)}}
.bau-staub circle{transform-box:fill-box;transform-origin:center;}

/* ---------- Handy / Tablet ---------- */
@media (max-width:900px){
  .bau-layout{grid-template-columns:1fr;gap:18px;margin-top:34px;}
  .bau-buehne{top:var(--bau-top);margin:0 -16px;padding:8px 16px 10px;background:rgba(255,248,236,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid #f1e3c8;}
  .bau-karte{display:grid;grid-template-columns:150px 1fr;align-items:center;gap:4px 14px;padding:0;background:none;border:0;box-shadow:none;border-radius:0;}
  .bau-svg{grid-row:1 / span 2;}
  .bau-titel{margin:0;min-height:0;flex-direction:column;align-items:flex-start;gap:2px;}
  .bau-titel b{font-size:16px;}
  .bau-titel span{font-size:12px;}
  .bau-balken{margin:6px 0 0;}
  .bau-schritte{display:none;}
  .bau-phase{padding:0 0 46px 0;}
  .bau-phase::before{display:none;}
  .bau-nr{position:static;width:34px;height:34px;font-size:16px;box-shadow:none;}
  .bau-kopf{margin-top:0;}
  .bau-phase h2{margin-top:8px;}
  .bau-fotos,.bau-mehr .bau-fotos{grid-template-columns:repeat(2,1fr);gap:8px;}
  .bau-ende{margin-left:0;padding:22px 20px;}
  .bau-lead{font-size:18px;}
  .bau-fakten li{min-width:0;flex:1 1 40%;}
}
@media (prefers-reduced-motion:reduce){
  .bau-js .bau-svg [data-stufe]{transition:opacity .2s linear;transform:none!important;}
  .bau-svg .offen-teil.an,.bau-staub.puff circle{animation:none;}
}