/*--------------------------------------------------------------
# form
--------------------------------------------------------------*/
  /* subtitle */
  .bk-subtitle {
    text-align: center;
    color: #9f9f9f;
    font-size: 15px;
    margin-bottom: 36px;
    line-height: 1.7;
  }
  .bk-wa-label {
    color: #25d366;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
  }

  /* card */
  .bk-card {
    background: #1a1a1a;
    border: 1px solid rgba(201,169,110,0.2);
    padding: 40px 44px 44px;
    position: relative;
  }
  .bk-card::before {
    content: '';
    position: absolute;
    top: 0; left: 10%; right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #c9a96e, transparent);
  }

  /* field */
  .bk-field-wrap {
    margin-bottom: 22px;
  }
  .bk-label {
    display: block;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: #888;
    margin-bottom: 8px;
    transition: color .2s;
  }
  .bk-field-wrap:focus-within .bk-label { color: #c9a96e; }

  /* base input — no border of its own; wrapper provides it */
  .bk-input {
    width: 100%;
    background: transparent;
    border: none;
    color: #d4cfc8;
    font-size: 14px;
    padding: 13px 16px;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    font-family: inherit;
    box-shadow: none !important;
    border-radius: 0;
  }
  .bk-input::placeholder { color: #444; }

  /* shared field wrapper — all fields get same border & focus ring */
  .bk-input-wrap,
  .bk-phone-row,
  .bk-select-wrap {
    display: flex;
    align-items: stretch;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.04);
    transition: border-color .25s, box-shadow .25s, background .25s;
  }
  .bk-input-wrap:focus-within,
  .bk-phone-row:focus-within,
  .bk-select-wrap:focus-within {
    border-color: rgba(201,169,110,0.7);
    background: rgba(201,169,110,0.04);
    box-shadow: 0 0 0 3px rgba(201,169,110,0.08);
  }
  .bk-input-wrap.bk-error,
  .bk-phone-row.bk-error,
  .bk-select-wrap.bk-error { border-color: rgba(220,80,70,0.7); }

  .bk-invalid {
    display: none;
    font-size: 11px;
    color: #e05050;
    margin-top: 5px;
    letter-spacing: .5px;
  }
  .show-error .bk-invalid { display: block; }

  /* phone prefix badge */
  .bk-phone-prefix {
    display: flex;
    align-items: center;
    padding: 0 15px;
    background: rgba(201,169,110,0.08);
    border-right: 1px solid rgba(255,255,255,0.08);
    color: #c9a96e;
    font-size: 13px;
    white-space: nowrap;
    user-select: none;
    flex-shrink: 0;
  }

  /* select */
  .bk-select-wrap { position: relative; }
  .bk-select { cursor: pointer; padding-right: 40px; flex: 1; }
  .bk-select option { background: #1a1a1a; color: #d4cfc8; }
  .bk-chevron {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #c9a96e;
    pointer-events: none;
  }

  /* location */
  .bk-location {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    border: 1px solid rgba(201,169,110,0.35);
    background: rgba(201,169,110,0.06);
  }
  .bk-loc-name {
    font-size: 14px;
    font-weight: 500;
    color: #e2cfa0;
    letter-spacing: .5px;
  }
  .bk-loc-sub {
    font-size: 10px;
    color: #888;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 3px;
  }

  /* button */
  .bk-btn {
    width: 100%;
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    background: transparent;
    border: 1px solid #c9a96e;
    color: #c9a96e;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    cursor: pointer;
    font-family: inherit;
    position: relative;
    overflow: hidden;
    transition: color .3s;
  }
  .bk-btn::before {
    content: '';
    position: absolute; inset: 0;
    background: #c9a96e;
    transform: translateX(-101%);
    transition: transform .35s cubic-bezier(.4,0,.2,1);
  }
  .bk-btn:hover::before { transform: translateX(0); }
  .bk-btn:hover { color: #111; }
  .bk-btn > * { position: relative; z-index: 1; }

  /* success */
  .bk-success {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 22px;
    border: 1px solid rgba(37,211,102,0.3);
    background: rgba(37,211,102,0.07);
    color: #aaa;
    font-size: 14px;
    line-height: 1.6;
    margin-top: 4px;
    animation: bkFadeUp .4s ease;
  }
  .bk-success strong { color: #4cdb82; }

  @keyframes bkFadeUp {
    from { opacity:0; transform:translateY(10px); }
    to   { opacity:1; transform:translateY(0); }
  }

  @media (max-width: 576px) {
    .bk-card { padding: 28px 20px 32px; }
  }