.collab-main{background:#fff;color:#111;padding:130px 5% 100px;min-height:100vh;position:relative;z-index:5}
.collab-tabs{display:flex;max-width:560px;margin:0 auto 105px;border-bottom:1px solid #ededed}
.collab-tabs button{flex:1;border:0;border-bottom:2px solid transparent;background:none;color:#777;text-transform:uppercase;font-size:16px;padding:12px 8px 20px;cursor:pointer}
.collab-tabs button[aria-selected=true]{border-bottom-color:#888;color:#222;font-weight:700}
.collab-panel h1{color:#000;text-align:center;font-family:Arial,sans-serif;font-size:40px;letter-spacing:0;line-height:1.25;margin:0 auto 42px;max-width:1000px}
.collab-intro{font-size:24px;line-height:1.5;max-width:560px;text-align:center;margin:0 auto 80px;font-weight:300}
.collab-form{max-width:760px;margin:auto}.collab-form label{display:block;font-size:20px;line-height:1.5;margin-bottom:28px}
.collab-form input,.collab-form textarea{display:block;width:100%;border:1px solid #777;border-radius:0;background:#fff;color:#111;font:inherit;padding:16px;margin-top:5px;min-height:58px}.collab-form textarea{resize:vertical}
.collab-submit{display:block;margin:36px auto 24px;background:#000;color:#fff;border:0;padding:20px 65px;font-size:16px;font-weight:700}.collab-submit:disabled{opacity:.5}
.collab-status{font-size:14px;text-align:center;color:#666;line-height:1.6}.collab-status a{text-decoration:underline}
header nav{gap:clamp(12px,1.8vw,28px)}
@media(max-width:800px){header nav{flex-wrap:wrap}.collab-main{padding:70px 6%}.collab-tabs{margin-bottom:60px}.collab-panel h1{font-size:30px}.collab-intro{font-size:20px;margin-bottom:50px}.collab-form label{font-size:18px}}

.collab-main{background:linear-gradient(rgba(15,11,9,.62),rgba(15,11,9,.85)),url('collaboration-background.png') center top/cover no-repeat;color:#f2e8d5}
.collab-tabs{border-bottom-color:#f2e8d533}
.collab-tabs button{color:#e1d3bf}
.collab-tabs button[aria-selected=true]{color:#d7b16b;border-bottom-color:#d7b16b}
.collab-panel h1{color:#f2e8d5}
.collab-form input,.collab-form textarea{background:rgba(20,15,12,.72);border-color:#b29a78;color:#f2e8d5}
.collab-form input::placeholder{color:#b9aa97}
.collab-form input:focus,.collab-form textarea:focus{outline:2px solid #d7b16b;outline-offset:2px}
.collab-submit{background:#d7b16b;color:#211713}
.collab-status{color:#e1d3bf}
.collab-status a{color:#d7b16b}

html:has(.collab-main){scroll-behavior:auto}