/*Tema Sensoo sopra Bootstrap*/
  :root {
    --s-bg: #faf8f4;
    --s-bg-alt: #f3efe7;
    --s-ink: #211d17;
    --s-ink-soft: #55503f;
    --s-accent: #a06b3c;
    --s-accent-soft: #c9a374;
    --s-line: #e2dccf;
  }
  body {
    background: var(--s-bg);
    color: var(--s-ink);
    font-family: "Work Sans", sans-serif;
    font-weight: 300;
    line-height: 1.75;
    font-size: 1.06rem;
  }
  h1, h2, h3, .serif { font-family: "Work Sans", sans-serif;; font-weight: 300; }
  .text-accent { color: var(--s-accent) !important; }
  .bg-alt { background: var(--s-bg-alt); }
  .kicker { font-size: .78rem; letter-spacing: .35em; text-transform: uppercase; color: var(--s-accent); }
  .num { font-family: "Work Sans", sans-serif; font-style: italic; color: var(--s-accent-soft); letter-spacing: .1em; }
  .lead-serif { font-family: "Work Sans", sans-serif; font-size: 1.25rem; line-height: 1.65; }
  em.q { font-family: "Work Sans", sans-serif; color: var(--s-accent); }
  .text-soft { color: var(--s-ink-soft) !important; }

  /* Navbar */
  .navbar { backdrop-filter: blur(12px); background: color-mix(in srgb, var(--s-bg) 85%, transparent); transition: border-color .4s; border-bottom: 1px solid transparent; }
  .navbar.scrolled { border-bottom-color: var(--s-line); }
  .navbar-brand { font-family: "Work Sans", sans-serif; font-size: 1.25rem; letter-spacing: .04em; color: var(--s-ink); }
  .navbar-brand span { color: var(--s-accent); }
  .navbar .nav-link { font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; color: var(--s-ink-soft); }
  .navbar .nav-link:hover { color: var(--s-accent); }

  /* Hero */
  header.hero { min-height: 100svh; position: relative; overflow: hidden; }
  #field { position: absolute; inset: 0; z-index: 0; opacity: .9; width: 100%; height: 100%; }
  .hero h1 { font-size: clamp(3.4rem, 9vw, 6.2rem); line-height: 1.05; }
  .hero h1 .oo { color: var(--s-accent); font-style: italic; }
  .hero-sub { font-family: "Work Sans", sans-serif; font-style: italic; font-size: clamp(1.2rem, 2.6vw, 1.6rem); color: var(--s-ink-soft); }
  .scroll-hint {
    position: absolute; bottom: 2.2rem; left: 50%; transform: translateX(-50%);
    z-index: 1; color: var(--s-accent); font-size: .75rem; letter-spacing: .3em;
    text-transform: uppercase; text-decoration: none;
    animation: drift 3s ease-in-out infinite;
  }
  @keyframes drift { 0%,100% { transform: translate(-50%,0);} 50% { transform: translate(-50%,8px);} }

  h2 { font-size: clamp(1.9rem, 4.5vw, 2.7rem); line-height: 1.2; }

  /* Reveal on scroll */
  .reveal { opacity: 0; transform: translateY(28px); transition: opacity 1s ease, transform 1s ease; }
  .reveal.visible { opacity: 1; transform: none; }

  /* Significato vs Senso */
  .duo { border-top: 1px solid var(--s-line); border-bottom: 1px solid var(--s-line); }
  .duo .col-duo { padding: 2.4rem 2rem; }
  @media (min-width: 768px) { .duo .col-duo:first-child { border-right: 1px solid var(--s-line); } }
  @media (max-width: 767.98px) { .duo .col-duo:first-child { border-bottom: 1px solid var(--s-line); } }
  .duo h3 { font-size: 1.35rem; font-weight: 400; }
  .duo .domanda { font-family: "Work Sans", sans-serif; font-style: italic; font-size: 1.5rem; color: var(--s-accent); display: block; }

  /* Parole emergenti */
  .emergenze { font-family: "Work Sans", sans-serif; font-style: italic; font-size: clamp(1.1rem, 2.5vw, 1.45rem); color: var(--s-ink-soft); }
  .emergenze span { transition: color .4s; }
  .emergenze span:hover { color: var(--s-accent); }

  /* Copertina libro */
  .cover {
    aspect-ratio: 2/3; max-width: 220px;
    background: linear-gradient(160deg, #2a251d, #4a3d2c);
    border-radius: 3px; box-shadow: 24px 30px 60px -20px rgba(33,29,23,.35);
    color: #e8e0d0; padding: 1.6rem 1.2rem;
  }
  .cover .t { font-family: "Work Sans", sans-serif; font-size: 1.5rem; }
  .cover .t span { color: var(--s-accent-soft); font-style: italic; }
  .cover .s { font-size: .62rem; letter-spacing: .22em; text-transform: uppercase; color: #b7ab92; }
  .cover .a { font-size: .72rem; letter-spacing: .15em; text-transform: uppercase; }
  .badge-prep { font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; border: 1px solid var(--s-accent-soft); color: var(--s-accent); border-radius: 99px; padding: .35rem 1rem; }

  /* Formula */
  .formula { background: var(--s-ink); color: #efe9dd; }
  .formula p { font-family: "Work Sans", sans-serif; font-weight: 300; font-size: clamp(1.4rem, 3.2vw, 1.9rem); line-height: 1.55; }
  .formula .accent { color: var(--s-accent-soft); font-style: italic; }
  .formula .kicker { color: var(--s-accent-soft); }

  /* Bottone contatto */
  .btn-sensoo {
    font-family: "Work Sans", sans-serif; font-size: 1.05rem;
    color: var(--s-bg); background: var(--s-ink);
    padding: .95rem 2.4rem; border-radius: 99px;
    transition: background .3s, transform .3s;
  }
  .btn-sensoo:hover { background: var(--s-accent); color: var(--s-bg); transform: translateY(-2px); }

  footer { border-top: 1px solid var(--s-line); font-size: .82rem; color: var(--s-ink-soft); }
  footer a { color: var(--s-accent); text-decoration: none; }