:root {
    font-family: "Segoe UI", Arial, sans-serif;
    color: #1f2937;
    background: #f4f6f8;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: linear-gradient(180deg,#f7f8fa,#eef1f4); }
.shell { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.card {
    width: min(100%, 620px);
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 18px;
    padding: 34px;
    box-shadow: 0 18px 50px rgba(0,0,0,.08);
}
.brand { font-size: 14px; font-weight: 800; letter-spacing: .12em; }
.step { margin-top: 28px; font-size: 13px; font-weight: 700; color: #606b78; }
h1 { margin: 8px 0 10px; font-size: clamp(28px, 6vw, 40px); line-height: 1.15; }
.intro { margin: 0 0 28px; color: #56606d; line-height: 1.55; }
.field { margin: 0 0 22px; }
label { display: block; font-weight: 700; margin-bottom: 8px; }
input[type="tel"], input[type="file"] {
    width: 100%; border: 1px solid #cfd5dc; border-radius: 10px; background: #fff;
    padding: 12px 14px; font: inherit;
}
input:focus { outline: 3px solid rgba(0,95,184,.16); border-color: #0067b8; }
.help { margin-top: 7px; color: #687382; font-size: 13px; }
.validation { color: #b42318; font-size: 13px; margin-top: 7px; }
button {
    width: 100%; border: 0; border-radius: 10px; padding: 14px 18px;
    font: inherit; font-weight: 800; cursor: pointer; background: #0067b8; color: #fff;
}
button:hover { background: #005a9e; }
.privacy { margin: 22px 0 0; color: #687382; font-size: 12px; line-height: 1.5; }
.hp { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; overflow: hidden; }
.success { text-align: center; }
.check { margin: 12px auto; width: 64px; height: 64px; display: grid; place-items: center; border-radius: 50%; background: #eaf7ee; font-size: 38px; font-weight: 800; color: #107c41; }
.code { margin-top: 24px; color: #59636f; font-size: 14px; }
@media (max-width: 520px) { .card { padding: 24px 20px; border-radius: 14px; } }