/* ── Hero ── */
  .page-hero {
    position:relative; text-align:center; margin:0 0 2rem 0;
    background-image: linear-gradient(135deg, rgba(11,102,255,0.15), rgba(42,160,255,0.15)),
                      url('/static/hero/about.jpg');
    background-size:cover; background-position:center; border-radius:12px; color:#fff;
    min-height:340px; display:flex; align-items:center; overflow:hidden;
    box-shadow:0 12px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.08);
  }
  .page-hero::before {
    content:""; position:absolute; inset:0;
    background:linear-gradient(180deg, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0.6) 100%); z-index:1;
  }
  .page-hero .hero-content { position:relative; z-index:2; width:100%;
    padding:3rem 1.5rem; max-width:900px; margin:0 auto; }
  .page-hero h1 { margin:0 0 1rem 0; font-size:2.75rem; font-weight:800;
    letter-spacing:-0.02em; text-shadow:0 2px 12px rgba(0,0,0,0.3); line-height:1.15; }
  .page-hero .hero-tagline { font-size:1.25rem; font-weight:500;
    color:rgba(255,255,255,0.98); max-width:64ch; margin:0 auto 1.5rem;
    text-shadow:0 1px 6px rgba(0,0,0,0.3); }
  .page-hero .hero-subtext { font-size:1rem; color:rgba(255,255,255,0.85);
    max-width:58ch; margin:0 auto; text-shadow:0 1px 4px rgba(0,0,0,0.25); }
  @media (max-width:768px) {
    .page-hero { min-height:260px; }
    .page-hero h1 { font-size:2rem; }
    .page-hero .hero-tagline { font-size:1.1rem; }
    .page-hero .hero-content { padding:2rem 1rem; }
  }

  /* ── Sections ── */
  .wwf-section { margin:0 0 2.5rem 0; }
  .wwf-section h2 { font-size:1.5rem; font-weight:700; margin:0 0 1rem 0; padding-bottom:0.5rem; border-bottom:2px solid rgba(11,102,255,0.15); }
  .wwf-section h3 { font-size:1.15rem; font-weight:600; margin:1.5rem 0 0.5rem 0; }
  .wwf-section p { max-width:72ch; line-height:1.7; }

  /* ── Origin block (quote) ── */
  .origin-block {
    background:linear-gradient(135deg, rgba(11,102,255,0.05), rgba(42,160,255,0.05));
    border-left:3px solid rgba(11,102,255,0.4); border-radius:0 10px 10px 0;
    padding:1.25rem 1.5rem; margin:1.25rem 0;
  }
  .origin-block p { margin:0; font-size:0.95rem; color:var(--muted); line-height:1.7; }

  /* ── Problem cards (red-tinted) ── */
  .gap-grid {
    display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:1rem; margin:1.25rem 0;
  }
  .gap-card {
    border:1px solid rgba(220,38,38,0.1); border-radius:10px; padding:1.25rem;
    background:linear-gradient(180deg,#fef2f2,#fff);
    transition:transform 0.2s ease, box-shadow 0.2s ease;
  }
  .gap-card:hover { transform:translateY(-3px); box-shadow:0 6px 18px rgba(220,38,38,0.08); }
  .gap-card .icon { font-size:1.5rem; margin-bottom:0.4rem; }
  .gap-card strong { display:block; margin-bottom:0.25rem; font-size:1.02rem; color:#991b1b; }
  .gap-card p { font-size:0.93rem; color:var(--muted); margin:0; line-height:1.6; }

  /* ── Principle cards (blue-tinted) ── */
  .principle-grid {
    display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:1rem; margin:1.25rem 0;
  }
  .principle-card {
    border:1px solid rgba(11,102,255,0.1); border-radius:10px; padding:1.25rem;
    background:linear-gradient(180deg,#f0f5ff,#fff);
    transition:transform 0.2s ease, box-shadow 0.2s ease;
  }
  .principle-card:hover { transform:translateY(-3px); box-shadow:0 6px 18px rgba(11,102,255,0.08); }
  .principle-card .icon { font-size:1.5rem; margin-bottom:0.4rem; }
  .principle-card strong { display:block; margin-bottom:0.25rem; font-size:1.02rem; }
  .principle-card p { font-size:0.93rem; color:var(--muted); margin:0; line-height:1.6; }

  /* ── Solution cards (green-tinted) ── */
  .solution-grid {
    display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:1rem; margin:1.25rem 0;
  }
  .solution-card {
    border:1px solid rgba(16,185,129,0.15); border-radius:10px; padding:1.25rem;
    background:linear-gradient(180deg,#f0fdf4,#fff);
    transition:transform 0.2s ease, box-shadow 0.2s ease;
  }
  .solution-card:hover { transform:translateY(-3px); box-shadow:0 6px 18px rgba(16,185,129,0.1); }
  .solution-card .icon { font-size:1.5rem; margin-bottom:0.4rem; }
  .solution-card strong { display:block; margin-bottom:0.25rem; }
  .solution-card p { font-size:0.93rem; color:var(--muted); margin:0; line-height:1.6; }

  /* ── Audience cards ── */
  .audience-grid {
    display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:1rem; margin:1.25rem 0;
  }
  .audience-card {
    border:1px solid rgba(15,23,42,0.08); border-radius:10px; padding:1.25rem;
    background:#fff; transition:transform 0.2s ease, box-shadow 0.2s ease;
  }
  .audience-card:hover { transform:translateY(-3px); box-shadow:0 6px 18px rgba(0,0,0,0.06); }
  .audience-card .icon { font-size:1.5rem; margin-bottom:0.4rem; }
  .audience-card strong { display:block; margin-bottom:0.25rem; font-size:1.02rem; }
  .audience-card p { font-size:0.93rem; color:var(--muted); margin:0; line-height:1.6; }

  /* ── Screenshots ── */
  .screenshot-strip {
    display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:1rem; margin:1.25rem 0;
  }
  .screenshot-strip img {
    width:100%; border-radius:10px; border:1px solid rgba(0,0,0,0.08);
    box-shadow:0 4px 12px rgba(0,0,0,0.06); cursor:pointer; transition:transform 0.15s ease, box-shadow 0.15s ease;
  }
  .screenshot-strip img:hover { transform:scale(1.02); box-shadow:0 6px 20px rgba(0,0,0,0.12); }
  .screenshot-strip figcaption { text-align:center; font-size:0.85rem; color:var(--muted); margin-top:0.4rem; }

  /* ── FAQ ── */
  .faq-list { margin:1rem 0; }
  .faq-item {
    border:1px solid rgba(15,23,42,0.08); border-radius:10px; padding:1.25rem;
    margin-bottom:0.75rem; background:#fff;
  }
  .faq-item summary {
    font-weight:600; font-size:1.05rem; cursor:pointer; list-style:none;
    display:flex; align-items:center; gap:0.5rem;
  }
  .faq-item summary::before { content:"▸"; font-size:0.85rem; color:var(--brand,#0b66ff); transition:transform 0.2s; }
  .faq-item[open] summary::before { transform:rotate(90deg); }
  .faq-item p { margin:0.75rem 0 0 0; font-size:0.95rem; line-height:1.7; color:var(--muted); max-width:72ch; }

  /* ── CTA ── */
  .cta-section {
    background:linear-gradient(135deg, rgba(11,102,255,0.08), rgba(42,160,255,0.08));
    border-radius:10px; padding:2rem; margin:2rem 0 0; text-align:center;
  }
  .cta-section h2 { font-size:1.4rem; font-weight:700; margin:0 0 0.5rem 0; border:none; padding:0; }
  .cta-section p { margin:0 0 1rem 0; color:var(--muted); max-width:56ch; display:inline-block; }
  .cta-actions { margin-top:0.5rem; display:flex; gap:12px; flex-wrap:wrap; justify-content:center; }

  /* ── Lightbox ── */
  .lightbox-overlay {
    display:none; position:fixed; inset:0; z-index:9999;
    background:rgba(0,0,0,0.85); align-items:center; justify-content:center;
    cursor:zoom-out; padding:1.5rem;
  }
  .lightbox-overlay.active { display:flex; }
  .lightbox-overlay img {
    max-width:95vw; max-height:92vh; border-radius:10px;
    box-shadow:0 8px 40px rgba(0,0,0,0.4); object-fit:contain;
  }
  .lightbox-close {
    position:absolute; top:1rem; right:1.5rem; background:none; border:none;
    color:#fff; font-size:2rem; cursor:pointer; line-height:1; opacity:0.8;
  }
  .lightbox-close:hover { opacity:1; }
  .lightbox-caption {
    position:absolute; bottom:1.25rem; left:50%; transform:translateX(-50%);
    color:rgba(255,255,255,0.9); font-size:0.95rem; text-align:center;
    background:rgba(0,0,0,0.5); padding:0.4rem 1rem; border-radius:6px;
    max-width:90vw;
  }