/* Schriften lokal (SIL Open Font License), keine Verbindung zu Google */
@font-face{font-family:"Cormorant Garamond";font-style:italic;font-weight:300;font-display:swap;src:url("../fonts/CormorantGaramond-300-italic.woff2") format("woff2")}
@font-face{font-family:"Cormorant Garamond";font-style:normal;font-weight:300;font-display:swap;src:url("../fonts/CormorantGaramond-300-normal.woff2") format("woff2")}
@font-face{font-family:"Cormorant Garamond";font-style:normal;font-weight:400;font-display:swap;src:url("../fonts/CormorantGaramond-400-normal.woff2") format("woff2")}
@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:400;font-display:swap;src:url("../fonts/SourceSans3-400-normal.woff2") format("woff2")}
@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:600;font-display:swap;src:url("../fonts/SourceSans3-600-normal.woff2") format("woff2")}

/* collmann-online.de – Gestaltung
   Farben: Nachtblau-Grund, warmes Orange als einziger Akzent (Seezeichen), helle Schrift.
   Schriften: Cormorant Garamond (Überschriften), Source Sans 3 (Text). */
:root{
  --ground:#050A10; --panel:#0B1420; --line:rgba(255,255,255,.08);
  --ink:#F2F4F6; --muted:#C9D3DD; --dim:#8E9BAD; --warm:#FFB27A; --warm-deep:#E3660C;
  --serif:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --sans:"Source Sans 3","Segoe UI",system-ui,sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:18px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--warm);text-decoration:none}
a:hover{color:#fff}
h1,h2,h3{font-family:var(--serif);font-weight:400;letter-spacing:-.01em;margin:0;text-wrap:balance}
p{margin:0 0 14px}
.wrap{max-width:1100px;margin:0 auto;padding:0 64px}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--warm)}

/* Kopf */
.top{position:absolute;left:0;right:0;top:0;z-index:3;padding:36px 64px;display:flex;justify-content:space-between;align-items:baseline;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.top .brand{color:var(--ink)}
.top .brand small{display:block;font-size:10px;letter-spacing:.14em;color:var(--dim);margin-top:4px}
.top nav{display:flex;gap:22px}
.top nav a{color:var(--muted)}
.top nav a:hover{color:var(--warm)}

/* Hero: die See */
.hero{position:relative;height:100vh;min-height:640px;overflow:hidden;background:var(--ground)}
#sea{position:absolute;inset:0;width:100%;height:100%;display:block}
.shade{position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(5,10,16,.82) 0%,rgba(5,10,16,.35) 45%,rgba(5,10,16,0) 70%),linear-gradient(0deg,rgba(5,10,16,.75) 0%,rgba(5,10,16,0) 35%)}
.copy{position:absolute;left:64px;bottom:72px;width:min(640px,80vw);display:flex;flex-direction:column;gap:22px;z-index:3}
.copy h1{font-weight:300;font-size:clamp(48px,6.6vw,84px);line-height:.98}
.copy h1 em{font-style:italic}
.lead{font-size:20px;color:var(--muted);max-width:46ch;margin:0}
.cta{display:inline-flex;align-items:center;gap:16px;margin-top:8px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink)}
.cta i{display:block;width:48px;height:1px;background:var(--warm);transition:width .35s}
.cta:hover i{width:72px}
.reveal{opacity:0;transform:translateY(14px);animation:up 1.1s cubic-bezier(.2,.7,.2,1) forwards}
.reveal:nth-child(1){animation-delay:.4s}.reveal:nth-child(2){animation-delay:.7s}.reveal:nth-child(3){animation-delay:1.1s}.reveal:nth-child(4){animation-delay:1.5s}
@keyframes up{to{opacity:1;transform:none}}
.hint{position:absolute;right:64px;bottom:40px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:rgba(201,211,221,.5);z-index:3}

/* Abschnitte */
section.block{padding:96px 0;border-top:1px solid var(--line)}
section.block h2{font-size:clamp(32px,3.6vw,44px);margin-bottom:12px}
section.block .intro{color:var(--muted);max-width:62ch;font-size:19px;margin-bottom:48px}
.cols{display:grid;grid-template-columns:repeat(4,1fr);gap:40px}
.cols h3{font-size:26px;margin-bottom:10px}
.cols p{color:var(--muted);max-width:34ch;font-size:16px}
.cols .n{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--warm);margin-bottom:16px}

/* Referenzen als Liste, keine Kacheln */
.refs{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line)}
.ref{display:grid;grid-template-columns:260px 1fr 220px;gap:32px;padding:26px 0;border-bottom:1px solid var(--line);align-items:baseline}
.ref h3{font-size:26px}
.ref p{color:var(--muted);margin:0;max-width:60ch}
.ref .tech{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);text-align:right}

/* Ablauf */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:56px;counter-reset:s}
.step{counter-increment:s}
.step::before{content:counter(s,decimal-leading-zero);display:block;font-family:var(--serif);font-size:44px;font-weight:300;color:var(--warm);margin-bottom:10px;line-height:1}
.step h3{font-size:28px;margin-bottom:8px}
.step p{color:var(--muted);max-width:34ch}

/* Über mich */
.about{display:grid;grid-template-columns:320px 1fr;gap:64px;align-items:start}
.portrait{aspect-ratio:4/5;background:var(--panel);border:1px solid var(--line);overflow:hidden}
.portrait img{display:block;width:100%;height:100%;object-fit:cover;object-position:50% 20%}
.about p{color:var(--muted);max-width:60ch}
.about .facts{display:flex;gap:40px;margin-top:28px;padding-top:22px;border-top:1px solid var(--line);color:var(--dim);font-size:15px}
.about .facts b{display:block;font-family:var(--serif);font-size:30px;font-weight:400;color:var(--ink);line-height:1.1}

/* Kontakt */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.contact .big{font-family:var(--serif);font-size:clamp(28px,3vw,40px);line-height:1.15}
.contact .big a{color:var(--ink)}
.contact .big a:hover{color:var(--warm)}
.contact address{font-style:normal;color:var(--muted);line-height:1.7}

footer{border-top:1px solid var(--line);padding:36px 0 60px;font-size:13px;letter-spacing:.06em;color:var(--dim);display:flex;justify-content:space-between;gap:24px}
footer a{color:var(--dim)}
footer a:hover{color:var(--warm)}

/* Kontaktformular */
form .field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
form label{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
form label .opt{text-transform:none;letter-spacing:0;color:var(--dim)}
form input,form textarea{font:inherit;color:var(--ink);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);padding:12px 14px;border-radius:0;width:100%}
form input:focus,form textarea:focus{outline:none;border-color:var(--warm)}
form textarea{resize:vertical;min-height:140px}
form .hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
form .dsg{font-size:14px;color:var(--dim);margin:6px 0 16px}
form button{font:inherit;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:#1A0B00;background:var(--warm);border:0;padding:14px 22px;cursor:pointer}
form button:hover{background:#fff}
form button:disabled{opacity:.6;cursor:wait}
.formstatus{margin-top:14px;font-size:15px;min-height:1.4em}
.formstatus.ok{color:#4FD695}
.formstatus.fehler{color:var(--warm)}

/* Projektseite */
.page.wide{max-width:1100px}
.page.wide .eyebrow{margin-bottom:14px}
.page .intro{font-size:19px;color:var(--muted);max-width:62ch;margin-bottom:56px}
.group{margin-bottom:72px}
.ghead{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:end;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:8px}
.ghead h2{font-size:clamp(28px,3.2vw,38px);margin:0}
.ghead p{color:var(--dim);margin:0;font-size:16px}
.proj{display:grid;grid-template-columns:300px 1fr;gap:40px;padding:28px 0;border-bottom:1px solid var(--line)}
.proj h3{font-size:26px;grid-column:1}
.proj p{grid-column:2;color:var(--muted);margin:0;max-width:66ch}
.proj .more{grid-column:2;margin:12px 0 0;font-size:15px}
.proj .more a{color:var(--warm)}
.proj .more a:hover{color:#fff}
.proj .tech{grid-column:2;margin-top:10px;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim)}
.pagecta{padding:20px 0 40px}
.moreref{margin-top:28px}
@media (max-width:900px){.ghead{grid-template-columns:1fr;gap:8px}.proj{grid-template-columns:1fr;gap:10px}.proj h3,.proj p,.proj .tech,.proj .more{grid-column:1}}

/* KI-Videos */
.videos{margin-top:24px}
.vgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:28px}
.yt{margin:0}
.ytplay{display:block;position:relative;width:100%;padding:0;border:1px solid var(--line);background:var(--panel);cursor:pointer;aspect-ratio:16/9;overflow:hidden}
.ytplay img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.ytplay:hover img{transform:scale(1.03)}
.ytplay .play{position:absolute;left:50%;top:50%;width:64px;height:64px;margin:-32px 0 0 -32px;border-radius:50%;background:rgba(5,10,16,.7);border:1px solid rgba(255,255,255,.5)}
.ytplay .play::after{content:"";position:absolute;left:26px;top:20px;border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent}
.ytplay:hover .play{background:var(--warm-deep);border-color:var(--warm-deep)}
.yt iframe{display:block;width:100%;aspect-ratio:16/9;border:0;background:#000}
.yt figcaption{padding:12px 2px 0}
.yt figcaption b{display:block;font-family:var(--serif);font-weight:400;font-size:22px;line-height:1.2}
.yt figcaption span{display:block;color:var(--muted);font-size:15px;margin-top:4px}
.channel{margin-top:28px;color:var(--muted)}
.videos .ghead{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:end;border-bottom:1px solid var(--line);padding-bottom:16px}
.videos .ghead h2{font-size:clamp(28px,3.2vw,38px);margin:0}
.videos .ghead p{color:var(--dim);margin:0;font-size:15px}
.page.wide section.block{border-top:1px solid var(--line);padding:72px 0}
@media (max-width:1100px){.cols{grid-template-columns:repeat(2,1fr)}}
@media (max-width:900px){.vgrid{grid-template-columns:1fr}.videos .ghead{grid-template-columns:1fr;gap:8px}}

/* Unterseiten (Impressum, Datenschutz) */
.page{padding-top:140px;padding-bottom:100px;max-width:760px}
.page h1{font-size:clamp(36px,4vw,52px);margin-bottom:28px;font-weight:300}
.page h2{font-size:26px;margin:38px 0 10px}
.page p,.page li{color:var(--muted)}
.page ul{padding-left:20px}
.page .back{display:inline-block;margin-bottom:40px;font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.todo{border-left:2px solid var(--warm-deep);padding:10px 16px;color:var(--warm);font-size:15px;margin:18px 0}

@media (max-width:900px){
  .wrap{padding-left:28px;padding-right:28px}
  .top{padding:22px 28px;flex-direction:column;align-items:flex-start;gap:10px}
  .top nav{flex-wrap:wrap;gap:8px 18px}
  .page{padding-top:170px}
  .copy{left:28px;right:28px;bottom:56px;width:auto}
  .hint{display:none}
  .cols,.steps{grid-template-columns:1fr!important;gap:36px}
  .ref{grid-template-columns:1fr;gap:6px}
  .ref .tech{text-align:left}
  .about,.contact{grid-template-columns:1fr;gap:32px}
  .portrait{max-width:280px}
  section.block{padding:64px 0}
  footer{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){.reveal{animation:none;opacity:1;transform:none}}