:root {
  --ms-blue: #0078d4;
  --ms-blue-dark: #106ebe;
  --ms-text: #242424;
  --ms-subtle: #616161;
  --ms-border: #d1d1d1;
  --ms-bg: #f5f5f5;
  --ms-error: #c50f1f;
  --ms-success: #107c10;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "Segoe UI Web (West European)", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif;
  color: var(--ms-text);
  background: var(--ms-bg);
  font-size: 15px;
  line-height: 1.5;
}
.ms-header { background: #fff; border-bottom: 1px solid #e6e6e6; }
.ms-header-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; height: 54px; display: flex; align-items: center; gap: 12px; }
.ms-logo { display: grid; grid-template-columns: 11px 11px; gap: 2px; }
.ms-logo i { width: 11px; height: 11px; display: block; }
.ms-logo i:nth-child(1) { background: #f25022; }
.ms-logo i:nth-child(2) { background: #7fba00; }
.ms-logo i:nth-child(3) { background: #00a4ef; }
.ms-logo i:nth-child(4) { background: #ffb900; }
.ms-brand { font-weight: 600; font-size: 18px; color: #737373; letter-spacing: -0.2px; }
.ms-divider { width: 2px; height: 22px; background: #2f2f2f; margin: 0 4px; }
.ms-product { font-weight: 600; font-size: 17px; }

main { max-width: 760px; margin: 0 auto; padding: 32px 20px 48px; }
.hero h1 { font-size: 32px; font-weight: 600; margin: 0 0 12px; }
.hero p { margin: 0 0 8px; color: var(--ms-text); }
.req-note { color: var(--ms-subtle); font-size: 14px; }
.req { color: var(--ms-error); }

.card { background: #fff; border-radius: 4px; box-shadow: 0 1.6px 3.6px rgba(0,0,0,.13), 0 .3px .9px rgba(0,0,0,.11); padding: 28px 32px; margin-top: 20px; }
.field { margin: 0 0 26px; border: 0; padding: 0; }
.field > label, legend { display: block; font-weight: 600; font-size: 16px; margin-bottom: 2px; padding: 0; }
.hint { margin: 0 0 8px; color: var(--ms-subtle); font-size: 14px; }
.hint.small { font-size: 13px; margin-top: 6px; }

input[type=text], input[type=email], textarea {
  width: 100%; font: inherit; color: inherit; padding: 7px 10px;
  border: 1px solid var(--ms-border); border-bottom-color: #616161; border-radius: 4px; background: #fff;
}
input[type=text]:focus, input[type=email]:focus, textarea:focus { outline: none; border-bottom: 2px solid var(--ms-blue); }
textarea { resize: vertical; }
.choice { display: flex; gap: 10px; align-items: flex-start; padding: 6px 0; font-weight: 400; cursor: pointer; }
.choice input { margin-top: 5px; accent-color: var(--ms-blue); }
input[type=file] { font: inherit; }
.invalid input[type=text], .invalid input[type=email], .invalid textarea { border-color: var(--ms-error); }
.invalid > label, .invalid legend { color: var(--ms-error); }
.field-error { color: var(--ms-error); font-size: 13px; margin: 4px 0 0; }
.file-list { margin: 6px 0 0; padding-left: 18px; font-size: 14px; color: var(--ms-subtle); }

.btn-primary, .btn-secondary { font: inherit; font-weight: 600; border-radius: 4px; padding: 7px 22px; cursor: pointer; min-width: 96px; }
.btn-primary { background: var(--ms-blue); color: #fff; border: 1px solid var(--ms-blue); }
.btn-primary:hover { background: var(--ms-blue-dark); }
.btn-primary:disabled { background: #c7c7c7; border-color: #c7c7c7; cursor: default; }
.btn-secondary { background: #fff; color: var(--ms-text); border: 1px solid var(--ms-border); }
.status { min-height: 1em; margin-bottom: 12px; font-size: 14px; }
.status.error { color: var(--ms-error); }
.done h2 { color: var(--ms-success); font-weight: 600; font-size: 22px; margin-top: 0; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.ms-footer { text-align: center; color: var(--ms-subtle); font-size: 13px; padding: 0 20px 32px; }
@media (max-width: 600px) { .card { padding: 20px; } .hero h1 { font-size: 26px; } }