/* iSTEP Contact Us popup - requires fonts: PT Serif (headings), body font inherits from page */
:root {
  --bk-brand: #26075b;
  --bk-lilac: #ece4f7;
  --bk-line: #ddd3ec;
  --bk-ink: #241839;
  --bk-muted: #6b5f80;
  --bk-white: #ffffff;
  --bk-serif: 'PT Serif', Georgia, serif;
}
.bk-overlay { position: fixed; inset: 0; z-index: 1000; background: rgba(25,7,47,.6);
  display: flex; align-items: center; justify-content: center; padding: 20px;
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  animation: bkFade .25s ease; }
.bk-overlay[hidden] { display: none; }
@keyframes bkFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes bkRise { from { opacity: 0; transform: translateY(18px) scale(.98); }
                    to   { opacity: 1; transform: translateY(0) scale(1); } }
.bk-modal { background: var(--bk-white); border-radius: 14px; width: min(560px, 100%);
  max-height: calc(100vh - 40px); overflow-y: auto; overflow-x: hidden;
  box-shadow: 0 32px 80px rgba(25,7,47,.4); position: relative;
  animation: bkRise .32s cubic-bezier(.22,1,.36,1); }
.bk-head { padding: 34px 36px 26px; color: var(--bk-white); position: relative;
  background: linear-gradient(135deg, #1e064b 0%, #2d075f 55%, #48118b 100%); }
.bk-head::after { content: ''; position: absolute; right: -40px; top: -60px;
  width: 200px; height: 200px; border-radius: 50%;
  background: rgba(255,255,255,.07); pointer-events: none; }
.bk-head::before { content: ''; position: absolute; right: 60px; bottom: -70px;
  width: 140px; height: 140px; border-radius: 50%;
  background: rgba(255,255,255,.05); pointer-events: none; }
.bk-eyebrow { font-size: 11.5px; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: #c9b3ec; margin: 0 0 8px; }
.bk-title { font-family: var(--bk-serif); font-size: 28px; line-height: 1.15;
  color: var(--bk-white); margin: 0; }
.bk-sub { font-size: 14px; color: #d9cbf0; margin: 8px 0 0; max-width: 380px; }
.bk-close { position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; z-index: 2;
  border: none; cursor: pointer; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.85); font-size: 21px; line-height: 1;
  background: rgba(255,255,255,.12); transition: background .18s, transform .18s; }
.bk-close:hover { background: rgba(255,255,255,.24); transform: rotate(90deg); }
.bk-form { padding: 28px 36px 34px; display: flex; flex-direction: column; gap: 18px; }
.bk-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.bk-field label { display: block; font-size: 12.5px; font-weight: 700; color: var(--bk-brand);
  letter-spacing: .04em; text-transform: uppercase; margin-bottom: 7px; }
.bk-field label .opt { font-weight: 500; color: var(--bk-muted); text-transform: none; letter-spacing: 0; }
.bk-input { width: 100%; height: 48px; padding: 0 15px; border: 1.5px solid var(--bk-line);
  border-radius: 8px; font: inherit; font-size: 14.5px; color: var(--bk-ink);
  background: #fbf9fe; box-sizing: border-box;
  transition: border-color .18s, box-shadow .18s, background .18s; }
.bk-input::placeholder { color: #a89cbc; }
textarea.bk-input { height: auto; min-height: 104px; padding: 13px 15px; resize: vertical; }
.bk-input:focus { outline: none; border-color: var(--bk-brand); background: var(--bk-white);
  box-shadow: 0 0 0 4px rgba(38,7,91,.1); }
.bk-role { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.bk-role-btn { display: flex; align-items: center; gap: 12px; padding: 13px 16px;
  border: 1.5px solid var(--bk-line); border-radius: 8px; text-align: left; cursor: pointer;
  font: inherit; font-size: 14.5px; font-weight: 600; color: var(--bk-ink);
  background: #fbf9fe; transition: all .18s; }
.bk-role-btn .ri { width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--bk-lilac); transition: background .18s; }
.bk-role-btn .ri svg { width: 19px; height: 19px; stroke: var(--bk-brand); stroke-width: 2;
  fill: none; stroke-linecap: round; stroke-linejoin: round; transition: stroke .18s; }
.bk-role-btn small { display: block; font-size: 12px; font-weight: 400; color: var(--bk-muted); }
.bk-role-btn:hover { border-color: var(--bk-brand); transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(38,7,91,.1); }
.bk-role-btn.on { background: var(--bk-brand); border-color: var(--bk-brand); color: var(--bk-white);
  box-shadow: 0 8px 20px rgba(38,7,91,.28); }
.bk-role-btn.on small { color: #cdb9ee; }
.bk-role-btn.on .ri { background: rgba(255,255,255,.16); }
.bk-role-btn.on .ri svg { stroke: var(--bk-white); }
.bk-error { font-size: 13.5px; color: #b3261e; background: #fdf1f0;
  border: 1px solid #f3d2cf; border-radius: 8px; padding: 10px 14px; margin: 0; }
.bk-error[hidden] { display: none; }
.bk-submit { height: 52px; border: none; cursor: pointer; border-radius: 8px; color: var(--bk-white);
  background: linear-gradient(135deg, #2d075f, #48118b);
  font: inherit; font-weight: 600; font-size: 15px; letter-spacing: .02em;
  box-shadow: 0 10px 24px rgba(45,7,95,.28);
  transition: box-shadow .2s, transform .2s, filter .2s; }
.bk-submit:hover { transform: translateY(-2px); filter: brightness(1.12);
  box-shadow: 0 14px 30px rgba(45,7,95,.36); }
.bk-submit:disabled { cursor: wait; opacity: .72; transform: none; filter: none; }
.bk-privacy { font-size: 12px; color: var(--bk-muted); text-align: center; margin: -6px 0 0; }
.bk-done { padding: 56px 40px 60px; text-align: center; }
.bk-done[hidden] { display: none; }
.bk-done-icon { width: 72px; height: 72px; margin: 0 auto 22px; border-radius: 50%;
  background: linear-gradient(135deg, #2d075f, #48118b);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 28px rgba(45,7,95,.3); animation: bkRise .4s cubic-bezier(.22,1,.36,1); }
.bk-done-icon svg { width: 32px; height: 32px; stroke: var(--bk-white); stroke-width: 2.5;
  fill: none; stroke-linecap: round; stroke-linejoin: round; }
.bk-done h3 { font-family: var(--bk-serif); font-size: 26px; color: var(--bk-brand); margin: 0 0 10px; }
.bk-done p { font-size: 14.5px; color: var(--bk-muted); max-width: 360px; margin: 0 auto; }
@media (max-width: 560px) {
  .bk-row, .bk-role { grid-template-columns: 1fr; }
  .bk-head, .bk-form { padding-left: 24px; padding-right: 24px; }
}