:root {
    --primary: #17171c;
    --deep-green: #003c33;
    --ink: #212121;
    --canvas: #ffffff;
    --soft-stone: #eeece7;
    --pale-green: #edfce9;
    --hairline: #d9d9dd;
    --border-light: #e5e7eb;
    --muted: #93939f;
    --slate: #75758a;
    --action-blue: #1863dc;
    --coral: #ff7759;
    --coral-soft: #ffad9b;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.bdr-body { font-family: 'Inter', 'Arial', ui-sans-serif, system-ui, sans-serif; color: var(--ink); margin: 0; background: var(--canvas); }
img { max-width: 100%; height: auto; display: block; border-radius: 22px; }
a { color: var(--action-blue); }
h1, h2, h3 { font-weight: 400; color: var(--ink); margin: 0 0 16px; letter-spacing: -0.02em; }
h1 { font-size: 44px; line-height: 1.05; }
h2 { font-size: 30px; margin-top: 48px; letter-spacing: -0.01em; }
p { line-height: 1.55; margin: 0 0 16px; }

.bdr-skip { position: absolute; left: -9999px; top: 0; background: var(--primary); color: #fff; padding: 8px 16px; z-index: 999; border-radius: 8px; }
.bdr-skip:focus { left: 8px; top: 8px; }

.bdr-shell { display: flex; min-height: 100vh; }
.bdr-sidebar { width: 240px; flex-shrink: 0; background: var(--canvas); border-right: 1px solid var(--hairline); padding: 32px 24px; position: sticky; top: 0; height: 100vh; }
.bdr-logo { font-size: 18px; font-weight: 500; color: var(--ink); text-decoration: none; display: block; margin-bottom: 40px; }
.bdr-logo span { color: var(--muted); font-weight: 400; }
.bdr-side-nav { display: flex; flex-direction: column; gap: 4px; }
.bdr-side-nav a { color: var(--ink); text-decoration: none; font-size: 15px; padding: 10px 12px; border-radius: 8px; }
.bdr-side-nav a:hover { background: var(--soft-stone); }
.bdr-side-foot { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--hairline); }
.bdr-side-foot a { color: var(--muted); text-decoration: none; font-size: 14px; }

.bdr-nav-toggle { display: none; position: fixed; top: 12px; right: 16px; z-index: 60; background: var(--primary); color: #fff; border: none; border-radius: 32px; padding: 10px 18px; font-size: 14px; }
.bdr-mobile-nav { display: none; position: fixed; top: 56px; right: 16px; left: 16px; background: var(--canvas); border: 1px solid var(--hairline); border-radius: 16px; padding: 12px; flex-direction: column; z-index: 60; box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.bdr-mobile-nav.open { display: flex; }
.bdr-mobile-nav a { padding: 10px 8px; color: var(--ink); text-decoration: none; }

.bdr-main { flex: 1; padding: 48px 56px 80px; min-width: 0; max-width: 980px; }

.bdr-hero { padding: 8px 0 24px; }
.bdr-hero h1 { max-width: 720px; }
.bdr-hero p { font-size: 19px; max-width: 620px; color: var(--slate); }

.btn-pill { display: inline-block; padding: 12px 24px; border-radius: 32px; font-size: 14px; font-weight: 500; text-decoration: none; border: none; cursor: pointer; }
.btn-pill-primary { background: var(--primary); color: #fff; }
.btn-pill-primary:hover { background: #000; }
.btn-pill-outline { background: transparent; color: var(--primary); border: 1px solid var(--primary); border-radius: 30px; padding: 6px 16px; }

.bdr-dark-band { background: var(--deep-green); color: #fff; border-radius: 22px; padding: 56px; margin: 40px 0; }
.bdr-dark-band h2 { color: #fff; margin-top: 0; }
.bdr-dark-band p { color: rgba(255,255,255,0.85); }

.bdr-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; margin-top: 24px; }
.bdr-card { background: var(--soft-stone); border-radius: 8px; padding: 28px; display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.bdr-card:hover { box-shadow: 0 4px 14px rgba(0,0,0,0.06); }
.bdr-chip { display: inline-block; color: var(--coral); border: 1px solid var(--coral-soft); font-size: 12px; font-weight: 500; padding: 6px 14px; border-radius: 30px; margin-bottom: 14px; align-self: flex-start; }
.bdr-card h3 { font-size: 20px; margin-bottom: 10px; }
.bdr-card p { font-size: 14px; margin-bottom: 0; color: var(--slate); }
.bdr-card .bdr-date { font-size: 12px; color: var(--muted); margin-top: 18px; }

.bdr-breadcrumb { margin: 0 0 20px; font-size: 13px; color: var(--muted); }
.bdr-breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; padding: 0; margin: 0; gap: 4px; }
.bdr-breadcrumb a { color: var(--muted); text-decoration: none; }
.bdr-breadcrumb .sep { margin: 0 4px; }

.bdr-toc { background: var(--pale-green); border-radius: 16px; padding: 24px; margin: 24px 0 32px; }
.bdr-toc h2 { margin: 0 0 12px; font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; }
.bdr-toc ul { margin: 0; padding-left: 20px; }

.bdr-faq-item { border-bottom: 1px solid var(--hairline); padding: 16px 0; }
.bdr-faq-item summary { cursor: pointer; font-weight: 500; font-size: 16px; list-style: none; }
.bdr-faq-item summary::-webkit-details-marker { display: none; }
.bdr-faq-item summary::before { content: '+ '; }
.bdr-faq-item[open] summary::before { content: '– '; }
.bdr-faq-item p { margin-top: 12px; }

.bdr-disclaimer { background: var(--soft-stone); border-radius: 16px; padding: 20px 24px; font-size: 14px; color: #333; margin: 24px 0; border: 1px solid var(--border-light); }

.bdr-rubric-list { border: 1px solid var(--hairline); border-radius: 16px; padding: 24px; margin-bottom: 32px; }
.bdr-rubric-list h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 16px; margin-top: 0; }
.bdr-rubric-list ul { list-style: none; margin: 0; padding: 0; }
.bdr-rubric-list li { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--hairline); font-size: 14px; }
.bdr-count { color: var(--muted); }

.bdr-related { margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--hairline); }
.bdr-related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin-top: 16px; }
.bdr-related-card { display: block; background: var(--soft-stone); border-radius: 8px; padding: 16px; text-decoration: none; color: inherit; }
.bdr-related-cat { font-size: 11px; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 6px; }
.bdr-related-title { font-size: 14px; color: var(--ink); }

.bdr-research-table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.bdr-research-table th, .bdr-research-table td { text-align: left; padding: 14px 12px; border-bottom: 1px solid var(--hairline); font-size: 15px; }
.bdr-research-table th { color: var(--muted); font-weight: 500; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; }

form.bdr-form { max-width: 520px; }
.bdr-form-group { margin-bottom: 20px; }
.bdr-form-group label { display: block; margin-bottom: 6px; font-size: 14px; }
.bdr-form-group input, .bdr-form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid var(--hairline); border-radius: 8px; font-family: inherit; font-size: 15px; }
.bdr-form-group input:focus, .bdr-form-group textarea:focus { outline: none; border-color: #9b60aa; }
.bdr-form-status { font-size: 14px; margin-top: 12px; }
.bdr-form-status.success { color: #1a7f43; }
.bdr-form-status.loading { color: var(--muted); }

.bdr-cookie-banner { position: fixed; bottom: 0; left: 0; right: 0; background: var(--primary); color: #fff; padding: 20px 24px; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; z-index: 100; }
.bdr-cookie-banner p { color: #fff; margin: 0; font-size: 14px; max-width: 640px; }
.bdr-cookie-actions { display: flex; gap: 12px; }
.bdr-cookie-actions button { border-radius: 32px; padding: 8px 18px; border: none; cursor: pointer; font-size: 14px; }
#cookie-accept { background: #fff; color: var(--ink); }
#cookie-reject { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.4); }

.bdr-footer { background: var(--canvas); border-top: 1px solid var(--hairline); padding: 56px 56px 32px; margin-top: 40px; }
.bdr-footer-inner { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; max-width: 980px; margin: 0 auto 32px; }
.bdr-footer-col h3, .bdr-footer-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; }
.bdr-footer-col ul { list-style: none; padding: 0; margin: 0; }
.bdr-footer-col li { margin-bottom: 8px; }
.bdr-footer-col a { font-size: 14px; color: var(--muted); text-decoration: none; }
.bdr-footer-col p { font-size: 13px; color: var(--muted); }
.bdr-footer-bottom { max-width: 980px; margin: 0 auto; border-top: 1px solid var(--hairline); padding-top: 24px; font-size: 12px; color: var(--muted); }
.bdr-footer-bottom a { color: var(--muted); }

@media (max-width: 900px) {
    .bdr-sidebar { display: none; }
    .bdr-nav-toggle { display: block; }
    .bdr-main { padding: 72px 20px 60px; }
    .bdr-hero h1 { font-size: 30px; }
    .bdr-dark-band { padding: 28px; }
    .bdr-footer { padding: 40px 20px 24px; }
    .bdr-footer-inner { grid-template-columns: 1fr; }
}