/* Wiener Zinshausforum – neutrales Veranstaltungsdesign
   Farben aus dem Forum-Logo: Grau + Hellblau. Schrift: Montserrat (lokal). */

@font-face{font-family:"Montserrat";font-weight:400;font-style:normal;font-display:swap;src:url("fonts/montserrat-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Montserrat";font-weight:500;font-style:normal;font-display:swap;src:url("fonts/montserrat-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Montserrat";font-weight:600;font-style:normal;font-display:swap;src:url("fonts/montserrat-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Montserrat";font-weight:700;font-style:normal;font-display:swap;src:url("fonts/montserrat-latin-700-normal.woff2") format("woff2")}

:root{
  --grey:#78726f;
  --ink:#45413f;
  --ink-soft:#5f5a57;
  --blue:#cce6f3;
  --blue-soft:#e9f4fa;
  --blue-deep:#2f6f90;
  --line:#e4e0dd;
  --paper:#ffffff;
  --maxw:1080px;
  --gutter:20px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Montserrat",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;line-height:1.65;font-weight:400;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-deep);text-underline-offset:3px}
a:hover{color:var(--ink)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 14px;z-index:20}
.skip:focus{left:8px;top:8px}

/* Header */
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.brand img{height:52px;width:auto}
.nav{display:none;gap:26px;font-size:13px;letter-spacing:.06em;text-transform:uppercase;font-weight:500}
.nav a{color:var(--grey);text-decoration:none;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover{color:var(--ink);border-color:var(--blue)}
.header-cta{font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--ink);background:var(--blue);padding:10px 16px;text-decoration:none}
.header-cta:hover{background:#b9dcee;color:var(--ink)}
@media(min-width:860px){.nav{display:flex}.brand img{height:60px}}

/* Typografie */
h1,h2,h3{font-weight:600;line-height:1.18;margin:0 0 .5em;color:var(--grey);letter-spacing:.01em}
h1{font-size:clamp(34px,7.5vw,68px);text-transform:uppercase;letter-spacing:.02em;font-weight:500}
h2{font-size:clamp(24px,4.2vw,36px);text-transform:uppercase;font-weight:500}
h3{font-size:18px;color:var(--ink)}
p{margin:0 0 1em}
.eyebrow{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--grey);font-weight:600;margin-bottom:18px}
.lead{font-size:clamp(17px,2.4vw,21px);line-height:1.6;color:var(--ink-soft);max-width:44ch}

/* Hellblauer Balken hinter Überschriften (Motiv aus dem Logo) */
.bar{background:linear-gradient(transparent 52%,var(--blue) 52%,var(--blue) 92%,transparent 92%);padding:0 .12em;margin:0 -.12em;box-decoration-break:clone;-webkit-box-decoration-break:clone}

/* Sektionen */
section{padding:56px 0}
section.tint{background:var(--blue-soft)}
.section-head{margin-bottom:28px}
@media(min-width:860px){section{padding:84px 0}}

/* Hero */
.hero{padding:44px 0 56px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-8%;top:0;bottom:0;width:38%;background:var(--blue-soft);z-index:0}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;gap:36px}
.event-card{background:#fff;border:1px solid var(--line);padding:26px 24px;box-shadow:0 10px 30px rgba(69,65,63,.07)}
.event-card dl{margin:0}
.event-card dt{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--grey);font-weight:600;margin-top:18px}
.event-card dt:first-child{margin-top:0}
.event-card dd{margin:4px 0 0;font-size:17px;font-weight:500;color:var(--ink)}
.event-card dd.big{font-size:22px;line-height:1.35}
.event-card .cta{margin-top:26px}
@media(min-width:860px){.hero{padding:76px 0 92px}.hero-grid{grid-template-columns:1.25fr 1fr;align-items:center;gap:64px}}

/* Buttons */
.btn{display:inline-block;background:var(--ink);color:#fff;border:0;font:600 14px/1 "Montserrat",sans-serif;letter-spacing:.08em;text-transform:uppercase;padding:18px 26px;cursor:pointer;text-decoration:none;min-height:48px}
.btn:hover{background:#2c2927;color:#fff}
.btn:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--blue-deep);outline-offset:2px}

/* Karten / Raster */
.cols{display:grid;gap:22px}
@media(min-width:760px){.cols.three{grid-template-columns:repeat(3,1fr)}.cols.two{grid-template-columns:1fr 1fr}}
.card{background:#fff;border:1px solid var(--line);padding:26px 24px}
.card .num{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--grey);background:var(--blue);padding:4px 10px;margin-bottom:14px}
.card p{margin:0;color:var(--ink-soft)}

/* Thema */
.topic{display:grid;gap:28px;align-items:start}
.topic blockquote{margin:0;padding:26px 26px 26px 28px;border-left:6px solid var(--blue);background:#fff;font-size:clamp(20px,3vw,26px);line-height:1.4;font-weight:500;color:var(--ink)}
@media(min-width:860px){.topic{grid-template-columns:1fr 1fr;gap:56px}}

/* Anmeldung */
.signup{background:#fff;border:1px solid var(--line);padding:28px 24px;max-width:640px}
.field{margin-bottom:16px}
label{display:block;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--ink);margin-bottom:6px}
input[type=text],input[type=email]{width:100%;font:400 16px "Montserrat",sans-serif;padding:14px;border:1px solid #bdb7b3;background:#fff;color:var(--ink);border-radius:0;min-height:48px}
.row{display:grid;gap:16px}
@media(min-width:560px){.row{grid-template-columns:1fr 1fr}}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--ink-soft);margin:6px 0 20px}
.consent input{margin-top:4px;width:20px;height:20px;flex:none}
.hp{position:absolute;left:-9999px}
.fineprint{font-size:13px;color:var(--grey);margin-top:14px}

/* Rückblick */
.stats{display:grid;gap:18px;grid-template-columns:repeat(2,1fr);margin:6px 0 40px}
@media(min-width:760px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{border-top:3px solid var(--blue);padding-top:12px}
.stat b{display:block;font-size:clamp(28px,5vw,40px);font-weight:600;color:var(--grey);line-height:1.1}
.stat span{font-size:14px;color:var(--ink-soft)}
.program{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.program li{display:grid;grid-template-columns:64px 1fr;gap:6px 16px;padding:16px 0;border-bottom:1px solid var(--line)}
.program time{font-weight:700;color:var(--grey);font-size:15px;background:linear-gradient(transparent 60%,var(--blue) 60%);align-self:start;width:max-content;padding:0 4px}
.program .t{font-weight:600;color:var(--ink)}
.program .s{font-size:14px;color:var(--ink-soft);display:block;margin-top:2px}
.venue-list{margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:10px}
.venue-list li{background:#fff;border:1px solid var(--line);padding:8px 14px;font-size:14px;font-weight:500}

/* Partner */
.logos{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(min-width:760px){.logos{grid-template-columns:repeat(3,1fr)}}
.logo-tile{background:#fff;border:1px solid var(--line);aspect-ratio:3/2;display:flex;align-items:center;justify-content:center;padding:22px}
.logo-tile img{max-height:100%;max-width:100%;width:auto;object-fit:contain}
.note{font-size:14px;color:var(--grey);margin-top:16px}

/* Footer */
.site-footer{background:var(--ink);color:#e9e6e4;padding:44px 0 36px;font-size:14px}
.site-footer a{color:#fff}
.footer-grid{display:grid;gap:26px}
@media(min-width:760px){.footer-grid{grid-template-columns:2fr 1fr 1fr}}
.site-footer h3{color:#fff;font-size:13px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:6px}

/* Textseiten */
.prose{max-width:720px;padding:48px 0 72px}
.prose h1{font-size:clamp(28px,5vw,40px)}
.prose h2{font-size:20px;text-transform:none;font-weight:600;margin-top:2em;color:var(--ink)}
.prose .todo{background:#fff6d6;padding:0 4px}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Foto-Hintergründe: Altbau-Fotos, dezent unter hellem Schleier */
.has-photo{position:relative;isolation:isolate;overflow:hidden}
.has-photo::before{content:"";position:absolute;inset:0;z-index:-1;background-repeat:no-repeat;background-size:cover;pointer-events:none}
.has-photo::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none}

/* Hero: Querformat, Schleier links dichter, damit Text gut lesbar bleibt */
.hero.has-photo::before{background-image:url("photos/altbau-ecke-quer.webp");background-position:center 38%;opacity:.55}
.hero.has-photo::after{background:linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.88) 45%,rgba(255,255,255,.55) 100%)}
.hero.has-photo::before{left:0;right:0;width:auto;background-color:transparent}

/* Thema: Hochformat-Foto rechts, blendet nach links aus */
.photo-right::before{left:auto;width:58%;background-image:url("photos/altbau-ecke-hochformat-1.webp");background-size:cover;background-position:center 30%;opacity:.3;-webkit-mask-image:linear-gradient(270deg,#000 25%,transparent 100%);mask-image:linear-gradient(270deg,#000 25%,transparent 100%)}
.photo-right::after{display:none}

/* Gastgeber: zweites Hochformat-Foto links, blendet nach rechts aus */
.photo-left::before{right:auto;width:55%;background-image:url("photos/altbau-ecke-hochformat-2.webp");background-size:cover;background-position:center 40%;opacity:.26;-webkit-mask-image:linear-gradient(90deg,#000 25%,transparent 100%);mask-image:linear-gradient(90deg,#000 25%,transparent 100%)}
.photo-left::after{display:none}

@media(max-width:859px){
  .hero.has-photo::after{background:rgba(255,255,255,.82)}
  .photo-right::before,.photo-left::before{left:0;right:0;width:auto;opacity:.18;-webkit-mask-image:none;mask-image:none}
}