.bk-utm-page {
  --utm-ink: #17243a;
  --utm-muted: #68788f;
  --utm-line: #dfe7f1;
  --utm-soft: #f5f8fc;
  --utm-blue: #1769e0;
  --utm-blue-dark: #1056bf;
  --utm-green: #0f9f6e;
  color: var(--utm-ink);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}
.bk-utm-page, .bk-utm-page * { box-sizing: border-box; }
.bk-utm-page button, .bk-utm-page input, .bk-utm-page textarea { font-family: inherit; }
.bk-utm-page__main { width: 100%; margin: 0 auto; padding: 18px 0 50px; }
.bk-utm-hero { margin: 0 auto 32px; text-align: center; }
.bk-utm-hero__eyebrow { display: inline-block; margin-bottom: 12px; color: var(--utm-blue); font-size: 11px; font-weight: 800; letter-spacing: .13em; }
.bk-utm-hero h1 { margin: 0; color: var(--utm-ink); font-size: clamp(30px, 5vw, 46px); font-weight: 800; letter-spacing: -.04em; line-height: 1.12; }
.bk-utm-hero p { max-width: 720px; margin: 14px auto 0; color: var(--utm-muted); font-size: 16px; line-height: 1.65; }
.bk-utm-card { overflow: hidden; border: 1px solid var(--utm-line); border-radius: 20px; background: #fff; box-shadow: 0 18px 50px rgba(31, 54, 88, .09); }
.bk-utm-step { display: flex; align-items: flex-start; gap: 15px; padding: 28px 32px 20px; }
.bk-utm-step--compact { padding: 0; }
.bk-utm-step__number { display: flex; flex: 0 0 32px; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%; color: #fff; background: var(--utm-blue); font-size: 14px; font-weight: 800; }
.bk-utm-step__text h2, .bk-utm-result h2, .bk-utm-help h2 { margin: 1px 0 0; color: var(--utm-ink); font-size: 20px; font-weight: 750; letter-spacing: -.02em; }
.bk-utm-step__text p, .bk-utm-result__title-row p { margin: 6px 0 0; color: var(--utm-muted); font-size: 13px; line-height: 1.5; }
.bk-utm-source-picker { padding: 0 32px 30px; }
.bk-utm-source-picker__tools { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.bk-utm-source-search { position: relative; display: block; width: min(100%, 450px); }
.bk-utm-source-search span { position: absolute; z-index: 1; top: 50%; left: 15px; color: #7c8da3; font-size: 22px; transform: translateY(-52%); }
.bk-utm-source-search input { display: block; width: 100%; min-height: 45px; padding: 10px 15px 10px 43px; border: 1px solid var(--utm-line); border-radius: 10px; outline: none; color: var(--utm-ink); background: var(--utm-soft); font-size: 13px; transition: border-color .18s, box-shadow .18s, background .18s; }
.bk-utm-source-search input:focus { border-color: var(--utm-blue); background: #fff; box-shadow: 0 0 0 4px rgba(23,105,224,.1); }
.bk-utm-source-count { color: #8c9bad; font-size: 12px; white-space: nowrap; }
.bk-utm-source-tabs { display: flex; gap: 7px; overflow-x: auto; margin: 0 -2px 18px; padding: 2px 2px 7px; scrollbar-width: thin; }
.bk-utm-source-tab { flex: 0 0 auto; min-height: 34px; padding: 6px 12px; border: 1px solid #e4eaf2; border-radius: 18px; color: #65758c; background: #fff; cursor: pointer; font-size: 12px; font-weight: 650; transition: all .16s; }
.bk-utm-source-tab:hover { color: var(--utm-blue); border-color: #bcd2f2; }
.bk-utm-source-tab.is-active { color: #fff; border-color: var(--utm-blue); background: var(--utm-blue); box-shadow: 0 5px 13px rgba(23,105,224,.18); }
.bk-utm-source-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.bk-utm-source-card { position: relative; display: flex; align-items: center; gap: 10px; min-width: 0; min-height: 68px; padding: 10px 28px 10px 10px; border: 1px solid var(--utm-line); border-radius: 11px; color: var(--utm-ink); background: #fff; cursor: pointer; text-align: left; transition: border-color .17s, box-shadow .17s, transform .17s, background .17s; }
.bk-utm-source-card:hover { border-color: #b9cce6; box-shadow: 0 7px 18px rgba(31,54,88,.09); transform: translateY(-1px); }
.bk-utm-source-card.is-active { border-color: var(--utm-blue); background: #f7fbff; box-shadow: 0 0 0 2px rgba(23,105,224,.09); }
.bk-utm-source-card__icon { display: flex; flex: 0 0 40px; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 10px; color: #fff; background: var(--source-color); font-size: 12px; font-weight: 850; letter-spacing: -.04em; }
.bk-utm-source-card__icon.is-dark { color: #1d2734; }
.bk-utm-source-card__text { display: block; overflow: hidden; min-width: 0; }
.bk-utm-source-card__text strong, .bk-utm-source-card__text small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bk-utm-source-card__text strong { color: var(--utm-ink); font-size: 12px; font-weight: 700; }
.bk-utm-source-card__text small { margin-top: 4px; color: #8c9bad; font-size: 10px; }
.bk-utm-source-card__check { position: absolute; top: 7px; right: 7px; display: none; align-items: center; justify-content: center; width: 17px; height: 17px; border-radius: 50%; color: #fff; background: var(--utm-blue); font-size: 10px; }
.bk-utm-source-card.is-active .bk-utm-source-card__check { display: flex; }
.bk-utm-show-more { display: block; margin: 18px auto 0; padding: 9px 15px; border: 1px solid #cdd9e8; border-radius: 8px; color: var(--utm-blue); background: #fff; cursor: pointer; font-size: 12px; font-weight: 700; }
.bk-utm-show-more:hover { background: #f4f8fe; }
.bk-utm-source-empty { padding: 22px; border: 1px dashed #ccd7e5; border-radius: 10px; color: var(--utm-muted); background: var(--utm-soft); text-align: center; font-size: 13px; }
.bk-utm-divider { height: 1px; background: #edf1f6; }
.bk-utm-card__head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 28px 32px 8px; }
.bk-utm-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 21px 24px; padding: 24px 32px 32px; }
.bk-utm-field { min-width: 0; }
.bk-utm-field--full { grid-column: 1 / -1; }
.bk-utm-field label { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; color: #34455e; font-size: 13px; font-weight: 700; }
.bk-utm-field label span { color: #df4f57; }
.bk-utm-field label em { color: #94a3b8; font-size: 10px; font-style: normal; font-weight: 500; }
.bk-utm-field code, .bk-utm-help code { padding: 2px 5px; border-radius: 4px; color: var(--utm-blue); background: #edf5ff; font-family: inherit; font-size: 10px; font-weight: 700; }
.bk-utm-field input, .bk-utm-result__row textarea { display: block; width: 100%; min-height: 50px; margin: 0; padding: 13px 15px; border: 1px solid var(--utm-line); border-radius: 10px; outline: none; color: var(--utm-ink); background: #fff; font-size: 14px; line-height: 1.45; transition: border-color .18s, box-shadow .18s; }
.bk-utm-field input::placeholder, .bk-utm-result__row textarea::placeholder { color: #a1afbf; }
.bk-utm-field input:hover { border-color: #b9c8d9; }
.bk-utm-field input:focus, .bk-utm-result__row textarea:focus { border-color: var(--utm-blue); box-shadow: 0 0 0 4px rgba(23,105,224,.11); }
.bk-utm-input-wrap { position: relative; }
.bk-utm-input-wrap input { padding-left: 43px; }
.bk-utm-input-icon { position: absolute; z-index: 1; top: 50%; left: 15px; color: var(--utm-blue); font-size: 17px; pointer-events: none; transform: translateY(-50%); }
.bk-utm-field__hint { display: block; margin-top: 7px; color: #91a0b2; font-size: 10px; line-height: 1.4; }
.bk-utm-button { border: 0; border-radius: 9px; cursor: pointer; font-family: inherit; font-weight: 700; transition: background .18s, box-shadow .18s, transform .1s; }
.bk-utm-button:focus-visible { outline: 3px solid rgba(23,105,224,.27); outline-offset: 2px; }
.bk-utm-button:active:not(:disabled) { transform: translateY(1px); }
.bk-utm-button--ghost { flex: 0 0 auto; padding: 9px 13px; color: #60738d; background: #f1f5f9; font-size: 11px; }
.bk-utm-button--ghost:hover { color: var(--utm-blue); background: #e7eef8; }
.bk-utm-result { margin: 0 32px 32px; padding: 24px; border: 1px solid #cfe0f6; border-radius: 13px; background: linear-gradient(135deg,#f7fbff,#f0f6ff); }
.bk-utm-result__title-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.bk-utm-result__counter { padding-top: 4px; color: #8ea1b7; font-size: 10px; white-space: nowrap; }
.bk-utm-result__row { display: flex; align-items: stretch; gap: 10px; }
.bk-utm-result__row textarea { min-height: 56px; resize: vertical; background: #fff; font-size: 12px; word-break: break-all; }
.bk-utm-result__row textarea[readonly] { cursor: text; }
.bk-utm-button--primary { min-width: 150px; padding: 12px 18px; color: #fff; background: var(--utm-blue); font-size: 12px; }
.bk-utm-button--primary:hover:not(:disabled) { background: var(--utm-blue-dark); box-shadow: 0 7px 18px rgba(23,105,224,.25); }
.bk-utm-button--primary:disabled { color: #9aa9ba; background: #dce5ef; cursor: not-allowed; }
.bk-utm-button--primary.is-success { background: var(--utm-green); }
.bk-utm-toast { min-height: 17px; margin-top: 8px; color: var(--utm-green); font-size: 11px; }
.bk-utm-toast.is-error { color: #d64752; }
.bk-utm-help { margin-top: 24px; padding: 28px 30px; border: 1px solid var(--utm-line); border-radius: 16px; background: #fff; }
.bk-utm-help > h2 { margin-bottom: 20px; text-align: center; }
.bk-utm-help__grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 20px; }
.bk-utm-help article { min-width: 0; }
.bk-utm-help h3 { margin: 9px 0 5px; color: var(--utm-ink); font-size: 13px; }
.bk-utm-help p { margin: 0; color: var(--utm-muted); font-size: 11px; line-height: 1.55; }
@media (max-width: 1050px) { .bk-utm-source-grid { grid-template-columns: repeat(3,minmax(0,1fr)); } }
@media (max-width: 760px) {
  .bk-utm-page__main { padding: 8px 0 35px; }
  .bk-utm-hero { margin-bottom: 23px; }
  .bk-utm-hero p { font-size: 14px; }
  .bk-utm-card { border-radius: 14px; }
  .bk-utm-step { padding: 21px 19px 16px; }
  .bk-utm-step--compact { padding: 0; }
  .bk-utm-source-picker { padding: 0 19px 22px; }
  .bk-utm-source-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .bk-utm-card__head { align-items: flex-start; padding: 22px 19px 4px; }
  .bk-utm-form-grid { grid-template-columns: 1fr; gap: 18px; padding: 22px 19px 24px; }
  .bk-utm-field--full { grid-column: auto; }
  .bk-utm-result { margin: 0 19px 22px; padding: 18px; }
  .bk-utm-result__row { flex-direction: column; }
  .bk-utm-button--primary { width: 100%; min-height: 48px; }
  .bk-utm-help { padding: 22px 19px; }
  .bk-utm-help__grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 480px) {
  .bk-utm-source-picker__tools { align-items: flex-start; flex-direction: column; gap: 7px; }
  .bk-utm-source-search { width: 100%; }
  .bk-utm-source-grid { grid-template-columns: 1fr; }
  .bk-utm-source-card { min-height: 62px; }
  .bk-utm-card__head { flex-direction: column; }
  .bk-utm-button--ghost { margin-left: 47px; }
  .bk-utm-result__title-row { flex-direction: column; }
  .bk-utm-help__grid { grid-template-columns: 1fr; }
}