:root{--bg:#F3F6FB;--surface:#fff;--ink:#12203F;--muted:#5B6783;--line:#DCE3F0;--brand:#1E3A8A;--accent:#F2A33A;color-scheme:light}
:root[data-theme="dark"]{--bg:#0C1428;--surface:#141F3A;--ink:#E8EDF9;--muted:#9AA7C7;--line:#26335A;--brand:#7C9BFF;color-scheme:dark}
:root[data-theme="light"]{--bg:#F3F6FB;--surface:#fff;--ink:#12203F;--muted:#5B6783;--line:#DCE3F0;--brand:#1E3A8A;color-scheme:light}
*{box-sizing:border-box}
body{min-height:100vh;margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,"Segoe UI",sans-serif}
a{color:var(--brand)}
.contact-shell{width:min(100% - 32px,920px);margin:0 auto;padding:24px 0 56px}
.contact-nav{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:44px}
.contact-logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:21px;font-weight:800;text-decoration:none}
.contact-logo img{width:38px;height:38px;border-radius:10px}
.contact-nav-actions{display:flex;align-items:center;gap:12px}
.theme-button{display:grid;place-items:center;width:42px;height:42px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--ink);cursor:pointer}
.theme-button svg{width:20px;height:20px}
.contact-back{font-weight:700;text-decoration:none}
.contact-panel{width:min(100%,620px);margin:0 auto;padding:clamp(22px,5vw,40px);border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.contact-eyebrow{margin:0 0 8px;color:var(--brand);font-size:13px;font-weight:800;text-transform:uppercase}
h1{margin:0;font-size:36px;line-height:1.15}
.contact-intro{margin:12px 0 26px;color:var(--muted)}
form{display:grid;gap:9px}
label{margin-top:8px;font-size:14px;font-weight:750}
input,textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font:inherit}
input{min-height:46px}
textarea{min-height:160px;resize:vertical}
input:focus-visible,textarea:focus-visible,.contact-submit:focus-visible,.theme-button:focus-visible{outline:3px solid color-mix(in srgb,var(--brand) 40%,transparent);outline-offset:2px}
.contact-privacy,.contact-status{margin:3px 0 0;color:var(--muted);font-size:13px}
.contact-status{min-height:1.5em}
.contact-submit{min-height:46px;padding:11px 16px;border:0;border-radius:8px;background:var(--brand);color:#fff;font:inherit;font-weight:750;cursor:pointer}
.contact-submit:disabled{cursor:wait;opacity:.65}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0C1428;--surface:#141F3A;--ink:#E8EDF9;--muted:#9AA7C7;--line:#26335A;--brand:#7C9BFF;color-scheme:dark}}
@media(max-width:600px){.contact-shell{width:min(100% - 24px,920px);padding-top:16px}.contact-nav{margin-bottom:28px}.contact-nav-actions{gap:9px}.contact-panel{padding:22px 18px}h1{font-size:32px}}