.bir-lead-page { background: #f5f8f9; }
.bir-page-intro { padding: clamp(2.4rem, 5vw, 4.5rem) 0 2rem; background: linear-gradient(135deg, #eef4f6, #fff 68%); border-bottom: 1px solid var(--bir-line); }
.bir-page-intro .bir-wrap { max-width: 960px; }
.bir-page-intro h1 { max-width: 760px; margin-bottom: .8rem; }
.bir-page-intro p { max-width: 720px; color: var(--bir-muted); font-size: 1.08rem; }
.bir-form-shell { width: min(1120px, calc(100% - 36px)); margin: 2.25rem auto 4rem; display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 2rem; align-items: start; }
.bir-form-shell--single { grid-template-columns: minmax(0, 860px); justify-content: center; }
.bir-form-card, .bir-info-card { background: #fff; border: 1px solid var(--bir-line); border-radius: 10px; box-shadow: 0 16px 45px rgba(21,47,58,.08); }
.bir-form-card { padding: clamp(1.25rem, 3.5vw, 2.5rem); }
.bir-info-card { padding: 1.5rem; position: sticky; top: 1.5rem; }
.bir-info-card h2 { font-size: 1.15rem; margin-bottom: .8rem; }
.bir-info-card ul { margin: 0; padding-left: 1.15rem; color: var(--bir-muted); }
.bir-info-card li + li { margin-top: .65rem; }
.bir-form-section { border: 0; padding: 0; margin: 0 0 2.2rem; }
.bir-form-section + .bir-form-section { border-top: 1px solid var(--bir-line); padding-top: 2rem; }
.bir-form-section legend { width: 100%; padding: 0; margin: 0 0 1rem; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(1.35rem, 2vw, 1.75rem); font-weight: 700; color: var(--bir-ink); }
.bir-field-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1rem 1.25rem; }
.bir-field-grid--three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.bir-field { display: flex; flex-direction: column; gap: .42rem; min-width: 0; }
.bir-field--full { grid-column: 1 / -1; }
.bir-field label, .bir-group-label { font-size: .9rem; font-weight: 700; color: var(--bir-ink); }
.bir-field input, .bir-field select, .bir-field textarea { width: 100%; min-height: 48px; border: 1px solid #aebdc4; border-radius: 5px; padding: .72rem .8rem; background: #fff; color: var(--bir-ink); font: inherit; }
.bir-field textarea { min-height: 110px; resize: vertical; }
.bir-field input:focus, .bir-field select:focus, .bir-field textarea:focus { outline: 3px solid rgba(173,139,66,.28); border-color: var(--bir-brand); }
.bir-help { margin: .15rem 0 0; font-size: .79rem; color: var(--bir-muted); }
.bir-choice-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .75rem; }
.bir-choice { display: flex; gap: .65rem; align-items: flex-start; padding: .8rem; border: 1px solid var(--bir-line); border-radius: 6px; background: #fbfcfd; }
.bir-choice input { flex: 0 0 auto; width: 18px; height: 18px; margin-top: .15rem; }
.bir-choice span { line-height: 1.35; }
.bir-consent { display: flex; gap: .7rem; align-items: flex-start; margin: 1rem 0; font-size: .9rem; }
.bir-consent input { flex: 0 0 auto; width: 19px; height: 19px; margin-top: .15rem; }
.bir-form-actions { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; margin-top: 1.4rem; }
.bir-form-note { color: var(--bir-muted); font-size: .83rem; max-width: 640px; }
.bir-honeypot { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.bir-calculator { padding: 1.15rem; background: #eef4f6; border: 1px solid #c9d8dd; border-radius: 7px; }
.bir-calculator h3 { margin-bottom: .8rem; font-size: 1.1rem; }
.bir-calculator-result { min-height: 1.6rem; margin: .8rem 0 0; font-weight: 700; color: var(--bir-brand-dark); }
.bir-progress { display: flex; gap: .5rem; margin-bottom: 1.5rem; }
.bir-progress span { flex: 1; height: 5px; border-radius: 4px; background: #d9e2e5; }
.bir-progress span.is-active { background: var(--bir-brand); }
.bir-success-card { width: min(720px, calc(100% - 36px)); margin: 4rem auto; padding: clamp(1.5rem, 5vw, 3.5rem); text-align: center; background: #fff; border: 1px solid var(--bir-line); border-radius: 10px; box-shadow: 0 18px 50px rgba(21,47,58,.1); }
.bir-success-mark { width: 58px; height: 58px; border-radius: 50%; margin: 0 auto 1.2rem; display: grid; place-items: center; background: var(--bir-brand); color: #fff; font-size: 1.8rem; }
@media (max-width: 860px) { .bir-form-shell { grid-template-columns: 1fr; } .bir-info-card { position: static; } }
@media (max-width: 640px) { .bir-field-grid, .bir-field-grid--three, .bir-choice-grid { grid-template-columns: 1fr; } .bir-form-shell { width: min(100% - 24px,1120px); margin-top: 1rem; } .bir-form-card { padding: 1.1rem; } .bir-page-intro { padding-top: 2rem; } }
@media (min-width: 1400px) { .bir-form-shell { max-width: 1180px; } }