.bb {
  --bb-bg: #0d0f17;
  --bb-card: #151826;
  --bb-line: #2a2f45;
  --bb-text: #eef1ff;
  --bb-dim: #9aa2c2;
  --bb-accent: #19e6ff;
  --bb-accent2: #ff3ea5;
  --bb-good: #4be38a;
  --bb-warn: #ffc94b;
  --bb-err: #ff6b7d;
  max-width: 640px;
  margin: 0 auto;
  color: var(--bb-text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.bb *, .bb *::before, .bb *::after { box-sizing: border-box; }
.bb-form { background: var(--bb-card); border: 1px solid var(--bb-line); border-radius: 18px; padding: 22px 20px 24px; box-shadow: 0 20px 60px rgba(0,0,0,.35); }
.bb h2 { font-size: 1.6rem; line-height: 1.15; margin: 6px 0 8px; color: var(--bb-text); letter-spacing: -.01em; }
.bb-lead { color: var(--bb-dim); margin: 0 0 18px; }
.bb-lead b { color: var(--bb-text); }
.bb-hint { color: var(--bb-dim); font-size: .88rem; margin: -6px 0 10px; }

.bb-steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; padding: 0; margin: 0 0 20px; }
.bb-steps li { font-size: .78rem; color: var(--bb-dim); display: flex; flex-direction: column; gap: 6px; text-transform: uppercase; letter-spacing: .06em; }
.bb-steps li span { display: none; }
.bb-steps li::before { content: ""; height: 4px; border-radius: 4px; background: var(--bb-line); }
.bb-steps li.is-done::before { background: var(--bb-accent); opacity: .55; }
.bb-steps li.is-on { color: var(--bb-text); }
.bb-steps li.is-on::before { background: linear-gradient(90deg, var(--bb-accent), var(--bb-accent2)); }

.bb-step { display: none; }
.bb-step.is-on { display: block; animation: bb-in .25s ease-out; }
@keyframes bb-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .bb-step.is-on { animation: none; } }

.bb-field { display: block; margin: 0 0 16px; font-weight: 600; font-size: .95rem; border: 0; padding: 0; min-width: 0; }
.bb-field legend { padding: 0; margin-bottom: 8px; }
.bb-field em, .bb-soft em { font-weight: 400; color: var(--bb-dim); font-style: normal; }
.bb-soft { font-weight: 500; }
.bb input[type=text], .bb input[type=email], .bb input[type=url], .bb textarea {
  display: block; width: 100%; margin-top: 6px; padding: 12px 14px; font: inherit; font-weight: 400;
  color: var(--bb-text); background: var(--bb-bg); border: 1px solid var(--bb-line); border-radius: 10px; outline: none;
}
.bb textarea { resize: vertical; min-height: 96px; }
.bb input:focus, .bb textarea:focus { border-color: var(--bb-accent); box-shadow: 0 0 0 3px rgba(25,230,255,.18); }
.bb ::placeholder { color: #5d6688; }

.bb-drop { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; min-height: 150px; padding: 20px; border: 2px dashed var(--bb-line); border-radius: 14px; background: var(--bb-bg); cursor: pointer; text-align: center; transition: border-color .15s, background .15s; }
.bb-drop:hover, .bb-drop.is-over { border-color: var(--bb-accent); background: #0f1626; }
.bb-drop.has-files { min-height: 90px; }
.bb-drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.bb-drop-big { font-size: 1.15rem; font-weight: 700; }
.bb-drop-small { color: var(--bb-dim); font-size: .9rem; }

.bb-filelist, .bb-chips { list-style: none; padding: 0; margin: 10px 0 14px; display: grid; gap: 8px; }
.bb-file, .bb-chips li { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2px 10px; padding: 10px 12px; border-radius: 10px; background: var(--bb-bg); border: 1px solid var(--bb-line); }
.bb-fname { font-weight: 600; overflow-wrap: anywhere; }
.bb-fmeta { grid-column: 1; font-size: .82rem; color: var(--bb-dim); }
.bb-file button, .bb-chips button { grid-row: 1 / span 2; grid-column: 2; background: none; border: 0; color: var(--bb-dim); font-size: 1.3rem; line-height: 1; cursor: pointer; padding: 4px 6px; }
.bb-great { border-left: 3px solid var(--bb-good); }
.bb-good { border-left: 3px solid var(--bb-accent); }
.bb-ok { border-left: 3px solid var(--bb-warn); }
.bb-chips li { grid-template-columns: auto 1fr auto; }
.bb-chips b { color: var(--bb-accent); font-size: .85rem; }
.bb-chips span { overflow-wrap: anywhere; font-size: .9rem; color: var(--bb-dim); }
.bb-chips button { grid-row: 1; grid-column: 3; }

.bb-addrow { display: flex; gap: 8px; margin-top: 6px; }
.bb-addrow input { margin-top: 0 !important; }
.bb-addrow button { flex: none; }

.bb-more { margin: 4px 0 16px; border: 1px solid var(--bb-line); border-radius: 10px; padding: 0 14px; }
.bb-more summary { cursor: pointer; padding: 12px 0; font-weight: 600; color: var(--bb-dim); }
.bb-more summary em { font-style: normal; font-weight: 400; }
.bb-more[open] { padding-bottom: 6px; }

.bb-check { display: flex; gap: 10px; align-items: flex-start; margin: 0 0 14px; font-size: .95rem; cursor: pointer; }
.bb-check input { width: 20px; height: 20px; margin: 2px 0 0; flex: none; accent-color: var(--bb-accent); }
.bb-check a { color: var(--bb-accent); }
.bb-must { padding: 12px; border-radius: 10px; background: rgba(25,230,255,.06); border: 1px solid rgba(25,230,255,.2); }

.bb-pills, .bb-seg { display: flex; flex-wrap: wrap; gap: 8px; }
.bb-pills button, .bb-seg button {
  font: inherit; font-size: .92rem; font-weight: 500; padding: 9px 14px; border-radius: 999px; cursor: pointer;
  color: var(--bb-text); background: var(--bb-bg); border: 1px solid var(--bb-line);
}
.bb-pills button.is-on, .bb-seg button.is-on { border-color: var(--bb-accent); background: rgba(25,230,255,.14); color: #fff; }
.bb-seg button { border-radius: 10px; }

.bb-row2, .bb-row3 { display: grid; gap: 0 12px; }
@media (min-width: 560px) { .bb-row2 { grid-template-columns: 1fr 1fr; } .bb-row3 { grid-template-columns: 1.2fr .6fr 1.2fr; } }

.bb-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 22px; gap: 12px; }
.bb button.bb-next, .bb button.bb-send, .bb .bb-btn, .bb-addrow button {
  font: inherit; font-weight: 700; padding: 12px 22px; border-radius: 12px; border: 0; cursor: pointer; text-decoration: none; display: inline-block;
  color: #061016; background: linear-gradient(90deg, var(--bb-accent), #6bf3ff);
}
.bb button.bb-send { background: linear-gradient(90deg, var(--bb-accent), var(--bb-accent2)); color: #fff; min-width: 140px; }
.bb button.bb-send:disabled { opacity: .7; cursor: progress; }
.bb button.bb-back { font: inherit; background: none; border: 0; color: var(--bb-dim); cursor: pointer; padding: 12px 4px; }
.bb-hide { display: none !important; }
.bb-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.bb-inline-err, .bb-error { color: var(--bb-err); font-weight: 600; margin: 8px 0 0; }
.bb-done { text-align: center; padding: 20px 0; }
.bb-done h2 { font-size: 2rem; }
.bb-foot { text-align: center; color: var(--bb-dim); font-size: .8rem; margin-top: 12px; }
.bb button:focus-visible, .bb a:focus-visible, .bb summary:focus-visible { outline: 2px solid var(--bb-accent); outline-offset: 2px; }