/* ══════════════════════════════════════════════════════
   RBQC — about.html (À propos)
   ─────────────────────────────────────────────────────
   Sections :
     1. Hero
     2. Mission (mission-body, mission-text, mission-quote)
     3. Chiffres (chiffres-grid, chiffre-card, chiffre-num)
     4. Approche pipeline (approche-grid, approche-card, approche-icon)
     5. Niche QC (niche-content, niche-stats, niche-stat)
     6. CTA section
     7. @media ≤ 768px
     8. @media ≤ 480px
   ══════════════════════════════════════════════════════ */

    .hero {
      min-height: auto;
      display: flex; flex-direction: column;
      justify-content: flex-end;
      padding: 80px 64px 60px;
      position: relative; overflow: hidden;
      background: var(--paper);
    }
    .hero::before {
      content: '';
      position: absolute; top: 0; left: 0;
      width: 60%; height: 100%;
      background: radial-gradient(ellipse 50% 60% at 10% -5%, rgba(245,196,0,0.16) 0%, transparent 65%);
      pointer-events: none;
    }
    .hero-eyebrow {
      font-size: 0.7rem; font-weight: 500;
      letter-spacing: 0.3em; text-transform: uppercase;
      color: var(--muted); margin-bottom: 24px;
      display: flex; align-items: center; gap: 14px;
      opacity: 0; animation: fadeUp 0.7s ease 0.2s forwards;
    }
    .hero-eyebrow::before {
      content: ''; width: 22px; height: 2px;
      background: var(--red); display: block; flex-shrink: 0;
    }
    .hero-title {
      font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 900; font-size: clamp(1.5rem, 2.2vw, 2.5rem);
      text-transform: uppercase; line-height: 0.88;
      letter-spacing: -0.02em; color: var(--dark);
      opacity: 0; animation: fadeUp 0.7s ease 0.35s forwards;
      margin-bottom: 24px; position: relative; z-index: 1;
    }
    .hero-title .accent { color: var(--red); }
    .hero-sub {
      font-size: clamp(1rem, 1.8vw, 1.2rem);
      color: var(--muted); line-height: 1.75; max-width: 560px;
      opacity: 0; animation: fadeUp 0.7s ease 0.5s forwards;
    }

    /* Mission */
    .mission { background: var(--dark); }
    .mission h2 {
      font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 900; font-size: clamp(2.5rem, 5vw, 5rem);
      text-transform: uppercase; line-height: 0.9;
      letter-spacing: -0.02em; color: white; margin-bottom: 48px;
    }
    .mission-body {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 64px; align-items: start;
    }
    .mission-text p {
      font-size: 1rem; color: rgba(255,255,255,0.55);
      line-height: 1.85; margin-bottom: 20px;
    }
    .mission-text p strong { color: white; }
    .mission-quote {
      border-left: 4px solid var(--mustard);
      padding: 28px 32px;
      background: rgba(212,144,10,0.08);
    }
    .mission-quote-text {
      font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 700; font-size: clamp(1.3rem, 2.5vw, 2rem);
      text-transform: uppercase; color: var(--amber);
      line-height: 1.1; margin-bottom: 20px;
    }
    .mission-quote-sub {
      font-size: 0.88rem; color: rgba(255,255,255,0.4); line-height: 1.7;
    }

    /* Chiffres */
    .chiffres { background: var(--surface); }
    .chiffres h2 {
      font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 900; font-size: clamp(2.5rem, 5vw, 5rem);
      text-transform: uppercase; line-height: 0.9;
      letter-spacing: -0.02em; margin-bottom: 64px;
    }
    .chiffres-grid {
      display: grid; grid-template-columns: repeat(3, 1fr);
      gap: 2px; background: var(--border); border: 1px solid var(--border);
    }
    .chiffre-card {
      background: var(--card); padding: 44px 36px;
      border-top: 3px solid transparent;
      transition: border-color 0.3s, background 0.3s;
    }
    .chiffre-card:hover { border-top-color: var(--red); background: var(--paper); }
    .chiffre-card.feat { border-top-color: var(--mustard); background: rgba(212,144,10,0.06); }
    .chiffre-num {
      font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 900; font-size: clamp(3rem, 5vw, 5rem);
      color: var(--dark); line-height: 1; display: block; letter-spacing: -0.02em;
    }
    .chiffre-card.feat .chiffre-num { color: var(--mustard); }
    .chiffre-lbl {
      font-size: 0.7rem; font-weight: 500;
      letter-spacing: 0.12em; text-transform: uppercase;
      color: var(--muted); margin-top: 12px; display: block;
    }

    /* Approche */
    .approche { background: var(--paper); }
    .approche h2 {
      font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 900; font-size: clamp(2.5rem, 5vw, 5rem);
      text-transform: uppercase; line-height: 0.9;
      letter-spacing: -0.02em; margin-bottom: 64px;
    }
    .approche-grid {
      display: grid; grid-template-columns: repeat(2, 1fr);
      gap: 2px; background: var(--border); border: 1px solid var(--border);
    }
    .approche-card {
      background: var(--card); padding: 48px 40px;
      border-top: 3px solid transparent;
      transition: border-color 0.3s, background 0.3s;
    }
    .approche-card:hover { border-top-color: var(--red); background: var(--surface); }
    .approche-icon {
      font-size: 0; /* SVG only */
      display: block; margin-bottom: 20px;
    }
    .approche-title {
      font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 700; font-size: 1.35rem;
      text-transform: uppercase; color: var(--dark); margin-bottom: 12px;
    }
    .approche-text { font-size: 0.9rem; color: var(--muted); line-height: 1.8; }

    /* Niche */
    .niche { background: var(--dark); }
    .niche h2 {
      font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 900; font-size: clamp(2.5rem, 5vw, 5rem);
      text-transform: uppercase; line-height: 0.9;
      letter-spacing: -0.02em; color: white; margin-bottom: 48px;
    }
    .niche-content {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 64px; align-items: start;
    }
    .niche-text p {
      font-size: 0.95rem; color: rgba(255,255,255,0.55);
      line-height: 1.85; margin-bottom: 20px;
    }
    .niche-text p strong { color: white; }
    .niche-stats { display: flex; flex-direction: column; gap: 2px; }
    .niche-stat {
      background: rgba(255,255,255,0.04);
      padding: 24px 28px;
      border-left: 3px solid var(--mustard);
      display: flex; gap: 20px; align-items: baseline;
    }
    .niche-stat-num {
      font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 900; font-size: 2.2rem;
      color: var(--amber); line-height: 1; flex-shrink: 0;
    }
    .niche-stat-info { font-size: 0.82rem; color: rgba(255,255,255,0.4); line-height: 1.5; }
    .niche-stat-info strong { color: rgba(255,255,255,0.8); display: block; margin-bottom: 2px; }

    /* CTA */
    .cta-section {
      background: var(--red); padding: 100px 64px;
      text-align: center; position: relative; overflow: hidden;
    }
    .cta-section::before {
      content: 'RBQC'; font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 900; font-size: 32vw; color: rgba(0,0,0,0.06);
      position: absolute; top: 50%; left: 50%;
      transform: translate(-50%, -50%);
      pointer-events: none; white-space: nowrap; line-height: 1;
    }
    .cta-label {
      font-size: 0.68rem; font-weight: 500;
      letter-spacing: 0.3em; text-transform: uppercase;
      color: rgba(255,255,255,0.5); margin-bottom: 20px; position: relative;
    }
    .cta-title {
      font-family: 'Big Shoulders Display', sans-serif;
      font-weight: 900; font-size: clamp(3rem, 7vw, 7rem);
      color: white; text-transform: uppercase;
      line-height: 0.87; letter-spacing: -0.02em;
      margin-bottom: 48px; position: relative;
    }
    .cta-sub { margin-top: 24px; font-size: 0.72rem; color: rgba(255,255,255,0.4); position: relative; }

    @media (max-width: 768px) {
      .hero { padding: 96px 24px 52px; }
      .mission-body { grid-template-columns: 1fr; gap: 40px; }
      .mission-quote { padding: 20px 24px; }
      .chiffres-grid { grid-template-columns: repeat(2, 1fr); }
      .chiffre-card  { padding: 32px 24px; }
      .approche-grid { grid-template-columns: 1fr; }
      .approche-card { padding: 36px 24px; }
      .niche-content { grid-template-columns: 1fr; gap: 40px; }
      .niche-stat    { padding: 16px 20px; }
      .cta-section { padding: 72px 24px; }
      .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
    }
    @media (max-width: 480px) {
      .hero { padding: 80px 20px 44px; }
      .chiffres-grid { grid-template-columns: 1fr; }
      .chiffre-num { font-size: clamp(2.5rem, 12vw, 3.5rem); }
      .niche-stat-num { font-size: 1.8rem; }
    }