:root{--ink:#12151c;--muted:#4e5563;--line:#e2e5eb;--accent:#d6402b;--accent-d:#b8331f;--soft:#f3f5f8;--green:#12805c;--green-soft:#e4f4ee}
*{margin:0;padding:0;box-sizing:border-box}
html{color-scheme:light}
body{font-family:'Plus Jakarta Sans',-apple-system,'Segoe UI',sans-serif;color:var(--ink);background:var(--soft);line-height:1.6;padding:38px 20px 70px}
.wrap{max-width:560px;margin:0 auto}
.brand{display:flex;align-items:center;gap:11px;margin-bottom:26px}
.tile{width:38px;height:38px;border-radius:12px;background:var(--accent);display:flex;align-items:center;justify-content:center}
.tile span{font-family:'Space Grotesk',sans-serif;font-weight:700;color:#f4f0e7;font-size:15px;letter-spacing:1.4px}
.brand b{font-family:'Space Grotesk',sans-serif;font-size:22px;letter-spacing:-1px}
.brand .who{margin-left:auto;font-size:.82rem;color:var(--muted);font-weight:600}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px 28px;box-shadow:0 18px 40px -30px rgba(20,23,31,.3)}
h1{font-size:1.45rem;font-weight:800;letter-spacing:-.02em;margin-bottom:6px}
p.lead{color:var(--muted);margin-bottom:22px}
label{display:block;font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin:16px 0 6px}
input,textarea,select{width:100%;padding:12px 14px;border:1px solid #d9dde4;border-radius:10px;font:inherit;font-size:1rem;background:#fff;color:var(--ink)}
input:focus,textarea:focus{outline:none;border-color:var(--accent)}
textarea{resize:vertical}
.row{display:flex;gap:12px}.row>div{flex:1}
button{margin-top:24px;width:100%;background:var(--accent);color:#fff;border:none;font:inherit;font-weight:800;font-size:1.02rem;padding:15px;border-radius:11px;cursor:pointer;transition:background .15s}
button:hover{background:var(--accent-d)}
button.alt{background:var(--ink)}
.ok{display:none;background:var(--green-soft);border:1px solid var(--green);border-radius:12px;padding:20px;color:#0c5c43;font-weight:700;text-align:center}
.note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:.86rem;color:var(--muted)}
.note b{color:var(--ink)}
.back{display:inline-block;margin-top:22px;color:var(--muted);font-size:.9rem;font-weight:600;text-decoration:none}
.back:hover{color:var(--accent)}
.demo{background:#fff7ed;border:1px solid #fcd9b6;border-radius:11px;padding:12px 15px;font-size:.87rem;color:#8a4b12;margin-bottom:20px}