/* ============================================================
   URBANSTREET · Bildarchiv
   Aufbauend auf dem Erscheinungsbild von www.urbanstreet.ch.
   ============================================================ */

:root{
  --dawn:#f6f7ec; --dawn2:#ebeeda; --cloud:#ffffff;
  --line:#dde3c9; --line2:#c6cfaa;
  --ink:#1f261a; --ink2:#68705f; --ink3:#8b9182;
  --brand:#5d603e; --brand-deep:#464930; --brand-bg:#eceedd; --brand-light:#b3b88a; --brand-fill:#5d603e;
  --graphite:#2e3234; --graphite-deep:#1f2325;
  --leaf:#7ba32f; --leaf-deep:#5a7d20; --leaf-bg:#edf3da;
  --sun:#d9a93a;  --sun-deep:#b18726;  --sun-bg:#f8efd4;
  --bark:#8a5a33; --bark-deep:#66401f; --bark-bg:#f2e7da;

  --maxw:1320px;
  --r-card:14px; --r-small:13px; --r-btn:9px; --r-note:12px;
  --sh-calm:0 1px 3px rgba(46,50,52,.06);
  --sh-hover:0 10px 26px rgba(46,50,52,.12);

  --nav-bg:rgba(246,247,236,.94);
  --serif:Georgia,"Times New Roman",serif;
  --sans:"Helvetica Neue",Arial,-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
}

/* ---------- DUNKELMODUS ----------
   Aus der bestehenden Palette abgeleitet: dieselben Farbfamilien (Olivgrün,
   Graphit, Gold), nur die Flächen- und Schriftrollen getauscht. Keine
   systemfremden Farben. Gilt automatisch nach Systemeinstellung, per
   data-theme lässt sich das übersteuern. */
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --dawn:#1b2018; --dawn2:#242a1f; --cloud:#242a1f;
    --line:#3a4232; --line2:#4c5642;
    --ink:#eef0e4; --ink2:#b7bfa9; --ink3:#8b9182;
    --brand:#a8af86; --brand-deep:#c4c9a3; --brand-bg:#2c3327; --brand-light:#b3b88a; --brand-fill:#5f6440;
    --graphite:#121512; --graphite-deep:#0b0d0b;
    --leaf:#8fbf3d; --leaf-deep:#9ccb4c; --leaf-bg:#2a3320;
    --sun:#e0b34c;  --sun-deep:#e6c069;  --sun-bg:#332a17;
    --bark:#c98f5d; --bark-deep:#d6a274; --bark-bg:#332920;
    --sh-calm:0 1px 3px rgba(0,0,0,.35);
    --sh-hover:0 14px 32px rgba(0,0,0,.5);
    --nav-bg:rgba(27,32,24,.9);
  }
}
:root[data-theme="dark"]{
  --dawn:#1b2018; --dawn2:#242a1f; --cloud:#242a1f;
  --line:#3a4232; --line2:#4c5642;
  --ink:#eef0e4; --ink2:#b7bfa9; --ink3:#8b9182;
  --brand:#a8af86; --brand-deep:#c4c9a3; --brand-bg:#2c3327; --brand-light:#b3b88a; --brand-fill:#5f6440;
  --graphite:#121512; --graphite-deep:#0b0d0b;
  --leaf:#8fbf3d; --leaf-deep:#9ccb4c; --leaf-bg:#2a3320;
  --sun:#e0b34c;  --sun-deep:#e6c069;  --sun-bg:#332a17;
  --bark:#c98f5d; --bark-deep:#d6a274; --bark-bg:#332920;
  --sh-calm:0 1px 3px rgba(0,0,0,.35);
  --sh-hover:0 14px 32px rgba(0,0,0,.5);
  --nav-bg:rgba(27,32,24,.9);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--dawn);color:var(--ink);font-family:var(--sans);
  transition:background .25s ease,color .25s ease;
  line-height:1.62;font-size:16px;font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-deep)}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);outline-offset:3px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:0}

/* ---------- KOPF ---------- */
header.nav{position:sticky;top:0;z-index:50;background:var(--nav-bg);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:14px}
.nav .wrap>*{min-width:0}
.wordmark{display:flex;align-items:baseline;gap:10px;white-space:nowrap;flex:0 0 auto}
.wordmark b{font-size:13px;letter-spacing:.22em;text-transform:uppercase;font-weight:700;color:var(--ink)}
.wordmark b span{color:var(--brand)}
.wordmark small{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink3);font-weight:700}
.nav-right{display:flex;align-items:center;gap:16px}
.nav-right a{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink2);font-weight:700}
.nav-right a:hover{color:var(--brand)}
.theme-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;
  border:1px solid var(--line2);border-radius:50%;background:var(--cloud);color:var(--ink2);
  cursor:pointer;flex:0 0 auto;transition:border-color .2s ease,color .2s ease,transform .2s ease}
.theme-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.theme-btn svg{width:17px;height:17px}
.theme-btn .i-moon{display:none}
:root[data-theme="dark"] .theme-btn .i-sun{display:none}
:root[data-theme="dark"] .theme-btn .i-moon{display:block}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .theme-btn .i-sun{display:none}
  :root:not([data-theme="light"]) .theme-btn .i-moon{display:block}
}

/* ---------- HERO-SLIDESHOW ---------- */
.hero{position:relative;height:min(86vh,860px);min-height:440px;overflow:hidden;
  background:var(--graphite)}
.hero.hidden{display:none}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease}
.hero-slide.active{opacity:1}
.hero-slide img{width:100%;height:100%;object-fit:cover;
  animation:heroZoom 9s ease-out forwards}
.hero-slide::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,21,18,.15) 0%,rgba(18,21,18,.12) 38%,rgba(18,21,18,.86) 100%)}
@keyframes heroZoom{from{transform:scale(1.06)}to{transform:scale(1)}}

.hero-content{position:absolute;left:0;right:0;bottom:0;z-index:5;color:#f2f3ea;
  padding:0 0 clamp(30px,5vw,58px)}
.hero-content .wrap{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.hero-k{font-size:11px;letter-spacing:.24em;text-transform:uppercase;font-weight:700;color:var(--sun)}
.hero-title{font-family:var(--serif);font-weight:400;font-size:clamp(30px,5.2vw,58px);
  line-height:1.1;color:#fdfdf7;margin:0;max-width:16ch;text-shadow:0 2px 18px rgba(0,0,0,.3)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.hero-btn{display:inline-flex;align-items:center;gap:9px;background:#fff;color:var(--graphite-deep);
  border:none;border-radius:var(--r-btn);padding:13px 22px;font-size:11.5px;letter-spacing:.14em;
  text-transform:uppercase;font-weight:700;cursor:pointer;transition:transform .2s ease,background .2s ease}
.hero-btn:hover{transform:translateY(-2px);background:#fff}
.hero-btn.ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.4)}
.hero-btn.ghost:hover{background:rgba(255,255,255,.18)}

.hero-dots{position:absolute;left:0;right:0;bottom:16px;z-index:6;display:flex;justify-content:center;gap:8px}
.hero-dot{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.4);border:none;padding:0;
  cursor:pointer;transition:background .2s ease,transform .2s ease}
.hero-dot.active{background:#fff;transform:scale(1.3)}

.hero-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:6;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.25);color:#fff;border-radius:50%;width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s ease}
.hero-nav:hover{background:rgba(255,255,255,.2)}
.hero-prev{left:18px}
.hero-next{right:18px}

.hero-scrolldown{position:absolute;right:22px;bottom:20px;z-index:6;display:flex;align-items:center;gap:8px;
  color:rgba(255,255,255,.85);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;
  background:none;border:none;cursor:pointer}
.hero-scrolldown svg{width:15px;height:15px;animation:bounce 1.8s ease-in-out infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}

@media (max-width:720px){
  .hero{height:min(78vh,620px)}
  .hero-nav{width:38px;height:38px}
  .hero-scrolldown span{display:none}
  .hero-actions .hero-btn.ghost{display:none}
}
@media (prefers-reduced-motion:reduce){
  .hero-slide img{animation:none}
  .hero-scrolldown svg{animation:none}
}

/* ---------- EINLEITUNG ---------- */
.intro{padding:52px 0 30px}
h2.sec{font-size:11.5px;letter-spacing:.28em;text-transform:uppercase;color:var(--ink);
  font-weight:700;margin:0 0 10px}
h1.lede{font-family:var(--serif);font-weight:400;font-size:clamp(26px,3.4vw,40px);
  line-height:1.24;color:var(--ink);margin:0 0 14px;max-width:22ch}
p.body{color:var(--ink2);max-width:64ch;margin:0}

/* ---------- WERKZEUGLEISTE ---------- */
.toolbar{position:sticky;top:66px;z-index:40;background:var(--dawn);
  border-bottom:1px solid var(--line);padding:16px 0}
.toolbar-inner{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.search-field{position:relative;flex:1 1 260px;min-width:200px}
.search-field input{width:100%;padding:11px 14px 11px 38px;border:1px solid var(--line2);
  border-radius:var(--r-btn);background:var(--cloud);font-size:14.5px;color:var(--ink);
  font-family:var(--sans)}
.search-field input::placeholder{color:var(--ink3)}
.search-field svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--ink3)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line2);background:var(--cloud);border-radius:999px;
  padding:8px 15px;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;font-weight:700;
  color:var(--ink2);cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,border-color .2s ease,background .2s ease,color .2s ease}
.chip:hover{border-color:var(--brand);color:var(--brand-deep)}
.chip.active{background:var(--brand-fill);border-color:var(--brand-fill);color:#fff}
.result-count{font-size:12.5px;color:var(--ink3);white-space:nowrap;margin-left:auto;padding-left:8px}

/* ---------- PROJEKT-RASTER ---------- */
main{padding:38px 0 90px}
.kat-block{margin-bottom:52px}
.kat-block:last-child{margin-bottom:0}
.kat-head{display:flex;align-items:baseline;gap:12px;margin-bottom:18px;
  border-bottom:1px solid var(--line);padding-bottom:12px}
.kat-head h3{font-family:var(--serif);font-weight:400;font-size:22px;color:var(--ink);margin:0}
.kat-head .n{font-size:12px;color:var(--ink3);font-variant-numeric:tabular-nums}

.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.pcard{cursor:pointer;background:var(--cloud);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-calm);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease}
.pcard:hover{transform:translateY(-4px);border-color:var(--line2);box-shadow:var(--sh-hover)}
.pcard .thumb-wrap{aspect-ratio:4/3;background:var(--dawn2);overflow:hidden;position:relative}
.pcard .thumb-wrap img{width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease}
.pcard:hover .thumb-wrap img{transform:scale(1.045)}
.pcard .badge{position:absolute;top:10px;right:10px;background:rgba(31,38,26,.72);color:#fff;
  font-size:10.5px;letter-spacing:.06em;padding:4px 9px;border-radius:999px;font-variant-numeric:tabular-nums}
.pcard .meta{padding:14px 16px 16px}
.pcard .meta .k{font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;
  color:var(--sun-deep);margin-bottom:5px}
.pcard .meta h4{font-family:var(--serif);font-weight:400;font-size:16.5px;color:var(--ink);margin:0;
  line-height:1.3}

.empty{padding:70px 0;text-align:center;color:var(--ink2)}
.empty p{margin:0 0 6px}

/* ---------- PROJEKT-ANSICHT ---------- */
.proj-view{display:none}
.proj-view.active{display:block}
.browse-view.hidden{display:none}
.back-link{display:inline-flex;align-items:center;gap:7px;font-size:11.5px;letter-spacing:.12em;
  text-transform:uppercase;font-weight:700;color:var(--ink2);margin-bottom:22px;cursor:pointer;
  background:none;border:none;padding:0;font-family:var(--sans)}
.back-link:hover{color:var(--brand)}
.proj-head{margin-bottom:28px}
.proj-head .k{font-size:11px;letter-spacing:.2em;text-transform:uppercase;font-weight:700;
  color:var(--sun-deep);margin-bottom:8px}
.proj-head h2{font-family:var(--serif);font-weight:400;font-size:clamp(24px,3.4vw,36px);
  color:var(--ink);margin:0 0 6px}
.proj-head .n{font-size:13px;color:var(--ink3)}
.proj-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}

.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line2);background:var(--cloud);
  border-radius:var(--r-btn);padding:10px 17px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  font-weight:700;color:var(--ink);cursor:pointer;white-space:nowrap;font-family:var(--sans);
  transition:transform .2s ease,border-color .2s ease,color .2s ease,background .2s ease}
.btn:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand-deep)}
.btn svg{width:14px;height:14px}
.btn[disabled]{opacity:.55;cursor:default;transform:none}
.btn .spin{width:13px;height:13px;border-radius:50%;border:2px solid currentColor;border-top-color:transparent;
  animation:spin .7s linear infinite;display:none}
.btn.loading .spin{display:inline-block}
.btn.loading .lbl-idle{display:none}
@keyframes spin{to{transform:rotate(360deg)}}

.igrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.itile{cursor:pointer;border-radius:var(--r-small);overflow:hidden;background:var(--dawn2);
  aspect-ratio:4/3;position:relative;box-shadow:var(--sh-calm);
  transition:transform .25s ease,box-shadow .25s ease}
.itile:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.itile img{width:100%;height:100%;object-fit:cover}

/* ---------- LIGHTBOX ---------- */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(31,35,37,.94);
  display:none;align-items:center;justify-content:center;padding:min(6vh,40px) min(4vw,30px)}
.lightbox.open{display:flex}
.lightbox figure{margin:0;max-width:100%;max-height:100%;display:flex;flex-direction:column;
  align-items:center;gap:14px}
.lightbox img{max-width:100%;max-height:78vh;width:auto;height:auto;border-radius:4px;
  box-shadow:0 20px 60px rgba(0,0,0,.5);background:#111}
.lightbox figcaption{color:#e8e9df;font-size:13px;text-align:center}
.lightbox figcaption b{font-family:var(--serif);font-weight:400;font-size:16px;color:#fff;
  display:block;margin-bottom:3px}
.lb-btn{position:absolute;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);
  color:#fff;border-radius:50%;width:46px;height:46px;display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .2s ease}
.lb-btn:hover{background:rgba(255,255,255,.2)}
.lb-close{top:18px;right:18px}
.lb-download{top:18px;right:76px}
.lb-prev{left:18px;top:50%;transform:translateY(-50%)}
.lb-next{right:18px;top:50%;transform:translateY(-50%)}
@media (max-width:720px){
  .lb-prev{left:8px}
  .lb-next{right:8px}
  .lb-close{top:10px;right:10px}
  .lb-download{top:10px;right:66px}
}

/* ---------- FUSS ---------- */
footer{padding:36px 0 50px;color:var(--ink2);font-size:12.5px;background:var(--dawn2);
  border-top:1px solid var(--line)}
footer .fwrap{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center}
footer a{color:var(--ink2)}
footer a:hover{color:var(--brand)}

/* ---------- SCHMALE BILDSCHIRME ---------- */
@media (max-width:720px){
  .toolbar{top:60px}
  .nav .wrap{height:60px}
  .result-count{margin-left:0;width:100%;order:3}
  .pgrid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
  .igrid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}
  .full-label{display:none}
  .nav-right a{font-size:15px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}