.birki-landing .section{padding:22px 0}
.birki-landing .section--soft{background:linear-gradient(180deg,#f8fbff 0%,#f3f7ff 100%);border-top:1px solid rgba(0,0,0,.05);border-bottom:1px solid rgba(0,0,0,.05)}
.birki-landing .section__head{margin-bottom:14px}
.birki-landing .section__head h2{margin:0 0 8px}
.birki-inner-page .section{padding:18px 0}

.birki-breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:12px;font-size:13px;color:var(--muted)}
.birki-breadcrumbs a{text-decoration:none;color:#194e9d}
.birki-breadcrumbs a:hover{text-decoration:underline}

.birki-hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px;align-items:stretch}
.birki-hero__copy{display:flex;flex-direction:column;gap:12px}
.birki-hero__copy h1{margin:0;font-size:44px;line-height:1.04}
.birki-hero__copy .lead{margin:0;font-size:19px;line-height:1.45;color:var(--muted)}
.birki-hero__cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.birki-offer-note{display:flex;flex-direction:column;gap:4px;margin-top:4px;padding:10px 12px;border-radius:12px;background:#fff3df;border:1px solid #f4d6a2}
.birki-offer-note strong{font-size:15px;line-height:1.2;color:#7e4b00}
.birki-offer-note span{font-size:13px;color:#8a5a0f}
.birki-hero__media{border-radius:var(--r2);overflow:hidden;border:1px solid rgba(0,0,0,.10);box-shadow:var(--shadow);background:#e9eef8;min-height:420px}
.birki-hero__media img{width:100%;height:100%;object-fit:cover;display:block}

.birki-kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:12px}
.birki-kpi article{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:14px;padding:12px;box-shadow:0 8px 20px rgba(0,0,0,.04)}
.birki-kpi strong{display:block;font-size:26px;line-height:1;color:#0b4aa6;font-weight:900}
.birki-kpi span{display:block;margin-top:6px;color:var(--muted);font-size:13px}

.birki-builder{display:grid;grid-template-columns:1.15fr .85fr;gap:14px}
.birki-builder__form{display:grid;gap:12px;padding:14px}
.birki-builder__summary{padding:14px;position:sticky;top:110px;height:fit-content}
.birki-builder__summary h3{margin:0 0 8px}

.birki-step{padding:10px;border:1px solid rgba(0,0,0,.08);border-radius:12px;background:#fff}
.birki-step h3{margin:0 0 10px;font-size:18px;line-height:1.2}
.birki-step-hint{margin:8px 0 0;font-size:13px}

.birki-step--inline{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.birki-step--inline label{display:block;margin:0 0 6px;font-weight:800;font-size:14px}
.birki-select{width:100%;height:42px;border-radius:10px;border:1px solid rgba(0,0,0,.16);padding:0 10px;background:#fff}

.birki-choice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.birki-choice{display:flex;align-items:flex-start;gap:8px;padding:10px;border:1px solid rgba(0,0,0,.14);border-radius:10px;cursor:pointer;background:#fff}
.birki-choice input{margin-top:3px}
.birki-choice span{font-size:14px;line-height:1.35}
.birki-choice:hover{border-color:rgba(25,78,157,.35)}
.birki-choice input:checked + span{font-weight:800;color:#133f83}

.birki-choice-grid--extras{grid-template-columns:repeat(3,1fr)}
.birki-choice--media{display:grid;gap:8px;grid-template-rows:auto 76px auto}
.birki-choice--media img{width:100%;height:76px;object-fit:cover;border-radius:8px;border:1px solid rgba(0,0,0,.08)}
.birki-choice--check input{margin-top:2px}

.birki-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.birki-card{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:16px;overflow:hidden;box-shadow:0 10px 22px rgba(0,0,0,.05)}
.birki-card__img{display:block;height:200px;background:#eef2f8}
.birki-card__img--cover{background-size:cover;background-position:center}
.birki-card__img img{width:100%;height:100%;object-fit:cover;display:block}
.birki-card__body{padding:12px}
.birki-card__body h3{margin:0 0 6px;font-size:20px;line-height:1.2}
.birki-card__body h3 a{text-decoration:none;color:inherit}
.birki-card__body p{margin:0;color:var(--muted)}
.birki-card__body .birki-cta__actions{margin-top:10px}
.birki-card__link{display:inline-block;margin-top:10px;color:#194e9d;font-weight:800;text-decoration:none}
.birki-card__link:hover{text-decoration:underline}

.birki-materials{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}

.birki-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.birki-gallery a{display:block;border-radius:14px;overflow:hidden;border:1px solid rgba(0,0,0,.08);background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.05)}
.birki-gallery a.is-wide{grid-column:span 2}
.birki-gallery img{width:100%;height:220px;object-fit:cover;display:block}

.birki-faq{display:grid;gap:10px}
.birki-faq details{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:12px;padding:10px 12px}
.birki-faq summary{cursor:pointer;font-weight:800;list-style:none}
.birki-faq summary::-webkit-details-marker{display:none}
.birki-faq p{margin:8px 0 0;color:var(--muted)}

.birki-split-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.birki-split-card{padding:14px;border-radius:14px;border:1px solid rgba(0,0,0,.09);background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.04)}
.birki-split-card h3{margin:0 0 8px;font-size:22px;line-height:1.2}
.birki-split-card p{margin:0 0 8px}

.birki-next-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.birki-next{display:flex;flex-direction:column;gap:6px;padding:12px;border:1px solid rgba(0,0,0,.08);border-radius:14px;background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.04);text-decoration:none;color:inherit}
.birki-next strong{font-size:17px;line-height:1.2}
.birki-next span{color:var(--muted);font-size:14px;line-height:1.35}
.birki-next:hover{border-color:rgba(27,84,166,.35);box-shadow:0 10px 22px rgba(13,62,141,.11)}

.birki-cta__box{display:flex;align-items:center;justify-content:space-between;gap:16px}
.birki-cta__box h2{margin:0 0 8px}
.birki-cta__box p{margin:0}
.birki-cta__meta{margin-top:10px;font-size:14px;font-weight:800;color:#7e4b00}
.birki-cta__actions{display:flex;flex-wrap:wrap;gap:10px}

.birki-lead-modal[hidden]{display:none}
.birki-lead-modal{position:fixed;inset:0;z-index:150;background:rgba(2,6,23,.64);display:grid;place-items:center;padding:16px}
.birki-lead-modal__card{width:min(760px,100%);max-height:calc(100vh - 32px);overflow:auto;background:#fff;border-radius:16px;border:1px solid rgba(0,0,0,.12);padding:14px}
.birki-lead-modal__head{display:flex;justify-content:space-between;align-items:center;gap:10px}
.birki-lead-modal__head h3{margin:0;font-size:24px;line-height:1.1}
.birki-lead-modal__close{border:1px solid rgba(0,0,0,.16);background:#fff;border-radius:10px;padding:8px 11px;cursor:pointer}

.birki-lead-form{margin-top:10px}
.birki-form-note{margin:0 0 10px;padding:10px 12px;border-radius:10px;background:#f6f9ff;border:1px solid rgba(25,78,157,.18);font-size:13px;color:#355b96}
.birki-form-note span{font-weight:900;color:#cb2f2f}
.birki-lead-modal__grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.birki-lead-modal__grid .full{grid-column:1 / -1}
.birki-lead-modal__grid label{display:block;margin-bottom:6px;font-size:13px;font-weight:800;color:rgba(0,0,0,.72)}
.birki-lead-modal__grid input,.birki-lead-modal__grid textarea{display:block;width:100%;box-sizing:border-box;border:1px solid rgba(0,0,0,.14);border-radius:10px;padding:10px 11px;font:inherit;background:#fff}
.birki-lead-modal__grid input:focus,.birki-lead-modal__grid textarea:focus{outline:none;border-color:rgba(25,78,157,.45);box-shadow:0 0 0 4px rgba(25,78,157,.12)}
.birki-required::after{content:" *";color:#cb2f2f;font-weight:900}
.birki-lead-modal__grid textarea{min-height:96px;resize:vertical}
.birki-lead-modal__grid input.is-error,.birki-lead-modal__grid textarea.is-error{border-color:#cb2f2f;background:#fff6f6;box-shadow:0 0 0 3px rgba(203,47,47,.12)}
.birki-policy label{display:flex;align-items:flex-start;gap:8px;margin:0}
.birki-policy input{width:auto;margin-top:2px}
.birki-policy em{color:#cb2f2f;font-style:normal;font-weight:900}
.birki-policy.is-error{padding:8px;border:1px solid rgba(203,47,47,.32);border-radius:10px;background:#fff6f6}
.birki-lead-msg{margin-top:8px;font-size:13px}
.birki-lead-msg.is-error{color:#b71f1f;font-weight:700}
.birki-lead-msg.is-ok{color:#1c7c3c;font-weight:700}

@media (max-width: 1100px){
  .birki-hero__grid{grid-template-columns:1fr}
  .birki-kpi{grid-template-columns:repeat(2,1fr)}
  .birki-builder{grid-template-columns:1fr}
  .birki-builder__summary{position:static}
  .birki-grid{grid-template-columns:repeat(2,1fr)}
  .birki-materials{grid-template-columns:repeat(2,1fr)}
  .birki-gallery{grid-template-columns:repeat(3,1fr)}
  .birki-split-grid{grid-template-columns:1fr}
  .birki-next-grid{grid-template-columns:repeat(2,1fr)}
}

@media (max-width: 760px){
  .birki-landing .section{padding:16px 0}
  .birki-hero__copy h1{font-size:34px}
  .birki-hero__copy .lead{font-size:17px}
  .birki-kpi{grid-template-columns:1fr}
  .birki-step--inline{grid-template-columns:1fr}
  .birki-choice-grid{grid-template-columns:1fr}
  .birki-choice-grid--extras{grid-template-columns:repeat(2,1fr)}
  .birki-lead-modal__grid{grid-template-columns:1fr}
  .birki-grid{grid-template-columns:1fr}
  .birki-materials{grid-template-columns:1fr}
  .birki-gallery{grid-template-columns:repeat(2,1fr)}
  .birki-gallery a.is-wide{grid-column:auto}
  .birki-gallery img{height:170px}
  .birki-next-grid{grid-template-columns:1fr}
  .birki-cta__box{flex-direction:column;align-items:flex-start}
}