/* ============ HERO KB ============ */
  .kb-hero {
    padding: 96px 0 40px;
  }
  .kb-hero .eyebrow { margin-bottom: 20px; }
  .kb-hero h1 {
    font-size: clamp(40px, 6vw, 68px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.05;
    margin: 0 0 24px;
    max-width: 900px;
  }
  .kb-hero h1 .a { color: var(--accent); }
  .kb-hero h1 .b { color: var(--accent-2); }
  .kb-hero .lead {
    font-size: 18px;
    line-height: 1.6;
    color: var(--ink-3);
    max-width: 720px;
    margin: 0;
  }
  .kb-hero .meta-line {
    display: flex;
    gap: 32px;
    margin-top: 40px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--muted);
    letter-spacing: .06em;
    text-transform: uppercase;
    flex-wrap: wrap;
  }
  .kb-hero .meta-line b { color: var(--ink); font-weight: 600; }

  /* ============ BENTO ============ */
  .kb-bento {
    padding: 40px 0 60px;
  }
  .bento-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: minmax(220px, auto);
    gap: 20px;
  }

  .kb-card {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 28px;
    background: var(--bg-panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
  }
  .kb-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--line-strong);
  }
  .kb-card:hover .kb-arrow {
    transform: translate(4px, -4px);
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
  }

  /* Rozmiary bento */
  .c-3x2 { grid-column: span 3; grid-row: span 2; }      /* feature */
  .c-3x1 { grid-column: span 3; grid-row: span 1; }
  .c-2x1 { grid-column: span 2; grid-row: span 1; }
  .c-4x1 { grid-column: span 4; grid-row: span 1; }
  .c-6x1 { grid-column: span 6; grid-row: span 1; }

  /* Warianty kolorystyczne */
  .kb-card.violet { background: linear-gradient(135deg, #f6efff 0%, #ffffff 65%); }
  .kb-card.cyan   { background: linear-gradient(135deg, #e6f4fb 0%, #ffffff 65%); }
  .kb-card.dark   { background: var(--ink); color: #fff; border-color: transparent; }
  .kb-card.dark .kb-meta,
  .kb-card.dark .kb-desc { color: rgba(255,255,255,.75); }
  .kb-card.dark .kb-tag {
    background: rgba(255,255,255,.08);
    color: #fff;
    border-color: rgba(255,255,255,.14);
  }
  .kb-card.dark .kb-arrow {
    background: rgba(255,255,255,.08);
    color: #fff;
    border-color: rgba(255,255,255,.16);
  }
  .kb-card.dark .kb-metric { color: #fff; }
  .kb-card.dark .kb-metric-label { color: rgba(255,255,255,.6); }

  /* Zawartość karty */
  .kb-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
  }
  .kb-tag {
    display: inline-block;
    padding: 5px 10px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--ink-2);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 6px;
  }
  .kb-arrow {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--ink);
    transition: transform .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
    flex-shrink: 0;
  }
  .kb-client {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: .06em;
    margin-bottom: 10px;
    text-transform: uppercase;
  }
  .kb-title {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.01em;
    margin: 0 0 12px;
  }
  .c-3x2 .kb-title { font-size: 30px; }
  .c-6x1 .kb-title { font-size: 26px; }
  .kb-desc {
    font-size: 14px;
    line-height: 1.55;
    color: var(--ink-3);
    margin: 0 0 20px;
  }
  .kb-bottom {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-top: auto;
  }
  .kb-metric {
    display: flex;
    flex-direction: column;
  }
  .kb-metric-value {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.01em;
    line-height: 1;
  }
  .c-3x2 .kb-metric-value { font-size: 34px; }
  .kb-metric-value.pos { color: var(--success); }
  .kb-metric-value.neg { color: var(--accent); }
  .kb-metric-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    letter-spacing: .1em;
    text-transform: uppercase;
    margin-top: 4px;
  }
  .kb-meta {
    display: flex;
    gap: 14px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--muted);
  }
  .kb-meta span::before {
    content: "·";
    margin-right: 14px;
    opacity: .5;
  }
  .kb-meta span:first-child::before { content: none; margin: 0; }

  /* Wykresik/wizualizacja w feature */
  .kb-glyph {
    position: absolute;
    right: -30px;
    bottom: -30px;
    width: 220px;
    height: 220px;
    opacity: .12;
    pointer-events: none;
  }
  .c-3x2 .kb-glyph { width: 260px; height: 260px; opacity: .16; }

  /* Extra info: technologie */
  .kb-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 14px;
  }
  .kb-tech span {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: .04em;
    color: var(--ink-3);
    background: rgba(14,19,48,.04);
    padding: 4px 8px;
    border-radius: 4px;
  }
  .kb-card.dark .kb-tech span {
    background: rgba(255,255,255,.08);
    color: rgba(255,255,255,.85);
  }

  /* ============ CTA STRIP ============ */
  .cta-strip {
    margin: 80px 0 40px;
    padding: 48px;
    background: var(--ink);
    color: #fff;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
  }
  .cta-strip h3 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0 0 8px;
    max-width: 620px;
  }
  .cta-strip p {
    margin: 0;
    color: rgba(255,255,255,.7);
    font-size: 15px;
    max-width: 620px;
  }
  .cta-strip .btn-primary {
    background: #fff;
    color: var(--ink);
  }
  .cta-strip .btn-primary:hover { background: var(--accent); color: #fff; }

  /* ============ RESPONSIVE ============ */
  @media (max-width: 1100px) {
    .bento-grid { grid-template-columns: repeat(4, 1fr); }
    .c-3x2 { grid-column: span 4; grid-row: span 2; }
    .c-3x1 { grid-column: span 2; }
    .c-2x1 { grid-column: span 2; }
    .c-4x1 { grid-column: span 4; }
    .c-6x1 { grid-column: span 4; }
  }
  @media (max-width: 640px) {
    .bento-grid { grid-template-columns: 1fr; grid-auto-rows: auto; }
    .c-3x2, .c-3x1, .c-2x1, .c-4x1, .c-6x1 { grid-column: span 1; grid-row: auto; }
    .kb-card { padding: 22px; }
    .kb-hero { padding: 60px 0 20px; }
    .cta-strip { padding: 32px; }
    .cta-strip h3 { font-size: 22px; }
  }