:root{
    /* ---------- Sistema de color — editorial oscuro ---------- */
    --bg:#253237;            /* negro azabache — fondo principal */
    --bg-alt:#5C6B73;        /* gris azulado — fondo secundario / superficies elevadas */
    --bg-raised:#2C3A40;     /* variante intermedia para tarjetas sobre --bg */
    --text:#E0FBFC;          /* cian claro — texto principal */
    --text-secondary:#9DB4C0;/* acero frío — texto secundario */
    --accent:#C2DFE3;        /* azul claro — CTA y foco */
    --accent-strong:#EAF9FA; /* variante clara del acento para hover */
    --line:rgba(224,251,252,0.12);
    --line-strong:rgba(157,180,192,0.4);
    --frame-bg:#1C2629;      /* gris topo, más oscuro que --bg — marco de la portada */
    --shadow:rgba(0,0,0,0.55);
    --max:1080px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text-secondary);
    font-family:'Public Sans', sans-serif;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,.display{
    font-family:'Fraunces', serif;
    font-weight:500;
    letter-spacing:0.01em;
    margin:0;
    color:var(--text);
  }
  .wrap{max-width:var(--max);margin:0 auto;padding:0 28px;}
  a{color:inherit;}

  ::selection{background:var(--accent);color:var(--bg);}

  /* ---------- Reveal on scroll ---------- */
  .reveal{
    opacity:0;
    transform:translateY(26px);
    transition:opacity 0.9s ease, transform 0.9s ease;
    will-change:opacity, transform;
  }
  .reveal.is-visible{opacity:1;transform:translateY(0);}

  /* ---------- Top bar ---------- */
  .topbar{
    display:flex;align-items:center;justify-content:space-between;
    padding:26px 28px;
    max-width:var(--max);margin:0 auto;
    border-bottom:1px solid var(--line);
  }
  .brand{
    font-family:'Fraunces', serif;
    font-size:15px;
    letter-spacing:0.24em;
    text-transform:uppercase;
    color:var(--text);
  }
  .topbar nav a{
    font-size:12.5px;
    letter-spacing:0.12em;
    text-transform:uppercase;
    text-decoration:none;
    color:var(--text-secondary);
    margin-left:30px;
    transition:color 0.25s ease;
    border-bottom:1px solid transparent;
    padding-bottom:2px;
  }
  .topbar nav a:hover,
  .topbar nav a:focus-visible{
    color:var(--accent);
    border-bottom-color:var(--accent);
  }

  /* ---------- Hero ---------- */
  .hero{
    max-width:var(--max);margin:0 auto;
    padding:80px 28px 110px;
    display:grid;
    grid-template-columns:0.85fr 1.15fr;
    gap:64px;
    align-items:center;
    position:relative;
  }
  .hero::before{
    content:"";
    position:absolute;
    inset:-40px 0 auto 0;
    height:520px;
    background:radial-gradient(60% 60% at 30% 20%, rgba(194,223,227,0.08), transparent 70%);
    pointer-events:none;
    z-index:0;
  }
  .hero-copy{position:relative;z-index:1;}
  .eyebrow{
    font-size:12.5px;
    letter-spacing:0.3em;
    text-transform:uppercase;
    color:var(--accent);
    font-weight:600;
    margin-bottom:26px;
    display:block;
    opacity:0;
    animation:reveal-up 0.8s ease 0.05s forwards;
  }
  .hero h1{
    font-size:clamp(32px, 4.6vw, 58px);
    line-height:1.16;
    letter-spacing:0.005em;
    text-transform:uppercase;
    font-weight:600;
    color:var(--text);
    text-shadow:0 2px 0 rgba(0,0,0,0.35), 0 40px 80px rgba(194,223,227,0.16);
    max-width:17ch;
    text-wrap:balance;
    opacity:0;
    animation:reveal-up 0.9s ease 0.18s forwards;
  }
  .hero h1 .hero-title-small{
    font-size:0.62em;
  }
  .hero .sub{
    margin-top:26px;
    font-size:19px;
    font-style:italic;
    font-family:'Fraunces', serif;
    color:var(--accent);
    max-width:46ch;
    opacity:0;
    animation:reveal-up 0.9s ease 0.34s forwards;
  }
  .hero .lede{
    margin-top:22px;
    font-size:16px;
    color:var(--text-secondary);
    max-width:52ch;
    opacity:0;
    animation:reveal-up 0.9s ease 0.46s forwards;
  }
  .cta-row{
    margin-top:38px;
    display:flex;
    gap:16px;
    flex-wrap:wrap;
    opacity:0;
    animation:reveal-up 0.9s ease 0.58s forwards;
  }
  .btn{
    display:inline-flex;
    align-items:center;
    gap:10px;
    padding:17px 30px;
    border-radius:2px;
    font-size:14px;
    font-weight:600;
    letter-spacing:0.06em;
    text-transform:uppercase;
    text-decoration:none;
    border:1px solid transparent;
    cursor:pointer;
    transition:background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
  }
  .btn:active{transform:translateY(1px);}
  .btn-primary{
    background:var(--accent);
    color:var(--bg);
  }
  .btn-primary:hover,
  .btn-primary:focus-visible{background:var(--accent-strong);}
  .btn-ghost{
    background:transparent;
    border-color:var(--line-strong);
    color:var(--text);
  }
  .btn-ghost:hover,
  .btn-ghost:focus-visible{
    background:var(--bg-alt);
    border-color:var(--bg-alt);
    color:var(--text);
  }
  .status-note{
    margin-top:20px;
    font-size:12.5px;
    color:var(--text-secondary);
    letter-spacing:0.02em;
    opacity:0;
    animation:reveal-up 0.9s ease 0.7s forwards;
  }
  .status-dot{
    display:inline-block;width:7px;height:7px;border-radius:50%;
    background:var(--accent);margin-right:8px;
    box-shadow:0 0 0 3px rgba(194,223,227,0.18);
  }

  @keyframes reveal-up{
    from{opacity:0;transform:translateY(18px);}
    to{opacity:1;transform:translateY(0);}
  }

  .hero-art{
    position:relative;
    display:flex;
    justify-content:center;
    z-index:1;
  }
  .cover-shot{
    position:relative;
    width:100%;
    max-width:580px;
    padding:clamp(16px, 2.4vw, 28px);
    background:var(--frame-bg);
    border:1px solid var(--line-strong);
    opacity:0;
    animation:reveal-up 1s ease 0.3s forwards;
  }
  .cover-shot::after{
    content:"";
    position:absolute;
    left:14%;right:14%;bottom:-24px;
    height:40px;
    background:radial-gradient(50% 100% at 50% 0%, rgba(0,0,0,0.5), transparent 75%);
    filter:blur(7px);
    z-index:-1;
  }
  .cover-shot img{
    width:100%;
    height:auto;
    max-width:100%;
    aspect-ratio:552/837;
    object-fit:contain;
    display:block;
    box-shadow: 0 40px 80px var(--shadow), 0 10px 20px rgba(0,0,0,0.4);
    border:1px solid var(--line-strong);
  }
  .book-tag{
    text-align:center;
    margin-top:22px;
    color:var(--text-secondary);
    font-family:'Fraunces', serif;
    font-style:italic;
    font-size:13.5px;
    letter-spacing:0.02em;
  }

  @media (prefers-reduced-motion:reduce){
    .eyebrow,.hero h1,.hero .sub,.hero .lede,.cta-row,.status-note,.cover-shot{
      animation:none !important;opacity:1 !important;transform:none !important;
    }
    .reveal{opacity:1;transform:none;transition:none;}
  }

  /* ---------- Divider: blueprint line motif ---------- */
  .blueprint-divider{
    height:64px;
    max-width:var(--max);margin:0 auto;
    display:flex;align-items:center;
    padding:0 28px;
  }
  .blueprint-divider svg{width:100%;height:100%;display:block;}

  /* ---------- Adelanto (preview) ---------- */
  .preview{padding:96px 0 40px;}
  .preview-row{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:48px;
    align-items:center;
  }
  .preview-row.reverse .preview-img{order:2;}
  .preview-row.reverse .preview-text{order:1;}
  .preview-img{
    justify-self:end;
    width:280px;
    max-width:100%;
    background:var(--frame-bg);
    border:1px solid var(--line-strong);
    padding:20px;
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .preview-row.reverse .preview-img{justify-self:start;}
  .preview-img img{
    display:block;
    max-width:100%;
    max-height:340px;
    width:auto;
    height:auto;
    object-fit:contain;
    border:1px solid var(--line);
    box-shadow:0 24px 50px rgba(0,0,0,0.45);
    filter:grayscale(0.15) contrast(1.03);
  }
  .preview-chapter{
    font-size:12px;letter-spacing:0.2em;text-transform:uppercase;
    color:var(--accent);font-weight:600;margin-bottom:12px;display:block;
  }
  .preview-quote{
    font-family:'Fraunces', serif;
    font-style:italic;
    font-size:20px;
    line-height:1.55;
    color:var(--text);
  }
  .preview-quote span{color:var(--accent);}

  /* ---------- Carrusel de adelanto ---------- */
  .carousel{
    position:relative;
    margin-top:8px;
  }
  .carousel-viewport{
    overflow:hidden;
  }
  .carousel-track{
    display:flex;
    align-items:center;
    transition:transform 0.6s ease;
  }
  .carousel-slide{
    flex:0 0 100%;
    width:100%;
    padding:0 2px;
    box-sizing:border-box;
  }
  .carousel-controls{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:24px;
    margin-top:24px;
  }

  @media (min-width:821px){
    .carousel-viewport{height:440px;}
    .carousel-track{height:100%;}
  }
  .carousel-arrow{
    width:42px;height:42px;
    flex-shrink:0;
    display:flex;align-items:center;justify-content:center;
    background:transparent;
    border:1px solid var(--line-strong);
    color:var(--text);
    font-size:18px;
    line-height:1;
    cursor:pointer;
    transition:background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
  }
  .carousel-arrow:hover,
  .carousel-arrow:focus-visible{
    background:var(--accent);
    color:var(--bg);
    border-color:var(--accent);
  }
  .carousel-dots{
    display:flex;
    align-items:center;
    gap:11px;
  }
  .carousel-dot{
    width:9px;height:9px;
    border-radius:50%;
    background:var(--line-strong);
    border:none;
    padding:0;
    cursor:pointer;
    transition:background 0.25s ease, transform 0.25s ease;
  }
  .carousel-dot:hover{background:var(--text-secondary);}
  .carousel-dot.is-active{background:var(--accent);transform:scale(1.3);}

  @media (max-width:820px){
    .preview-img,
    .preview-row.reverse .preview-img{justify-self:center;}
  }

  /* ---------- Synopsis ---------- */
  .synopsis{
    background:var(--bg-alt);
    color:var(--text);
    padding:80px 0 86px;
  }
  .synopsis .wrap{
    display:grid;
    grid-template-columns:0.7fr 1.3fr;
    gap:56px;
  }
  .synopsis h2{
    color:var(--text);
    font-size:30px;
    line-height:1.2;
  }
  .synopsis .hook{
    font-family:'Fraunces', serif;
    font-style:italic;
    font-size:22px;
    color:var(--accent);
    line-height:1.4;
    margin-bottom:24px;
  }
  .synopsis p{
    font-size:15.5px;
    color:var(--text);
    opacity:0.85;
    max-width:58ch;
  }
  .synopsis p + p{margin-top:14px;}

  /* ---------- Próximamente Libro 2 ---------- */
  .next-book{
    background:var(--bg-alt);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:88px 0 96px;
  }
  .next-badge{
    display:inline-block;
    font-size:11.5px;letter-spacing:0.24em;text-transform:uppercase;
    background:var(--accent);color:var(--bg);
    padding:7px 14px;margin-bottom:18px;
    font-weight:600;
  }
  .next-book h3{font-size:30px;margin-bottom:44px;color:var(--text);}
  .next-inner{
    display:grid;
    grid-template-columns:0.85fr 1.15fr;
    gap:48px;
    align-items:center;
  }
  .next-img{
    justify-self:end;
    width:280px;
    max-width:100%;
    background:var(--frame-bg);
    border:1px solid var(--line-strong);
    padding:20px;
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .next-text{
    min-width:0;
    max-width:100%;
  }
  .next-img img{
    display:block;
    max-width:100%;
    max-height:340px;
    width:auto;
    height:auto;
    object-fit:contain;
    border:1px solid var(--line);
    box-shadow:0 24px 50px rgba(0,0,0,0.45);
  }
  .next-lede{
    font-family:'Fraunces', serif;font-style:italic;
    font-size:19px;line-height:1.5;color:var(--text);
    margin-bottom:30px;
  }
  .next-bridge{
    font-family:'Public Sans', sans-serif;
    font-style:normal;
    font-weight:400;
    font-size:15px;
    line-height:1.6;
    color:var(--text-secondary);
    margin:0 0 30px;
    padding-top:24px;
    border-top:1px solid var(--line);
  }
  .next-close{
    font-family:'Fraunces', serif;font-style:italic;
    font-size:15.5px;color:var(--text);margin:0;
  }

  /* ---------- Carrusel de fragmentos — Libro II ---------- */
  .next-carousel{margin:0 0 30px;}
  .next-carousel .carousel-viewport{height:auto;}
  .next-carousel .carousel-track{height:auto;align-items:stretch;}
  .next-carousel .carousel-slide{display:flex;}
  .next-carousel-card{
    position:relative;
    flex:1;
    background:var(--frame-bg);
    border:1px solid var(--line);
    border-left:3px solid var(--accent);
    padding:30px 34px 30px 28px;
    min-height:190px;
    display:flex;
    flex-direction:column;
    justify-content:center;
    gap:14px;
    overflow:hidden;
  }
  .next-carousel-card::before{
    content:'\201C';
    position:absolute;
    top:-30px;
    right:16px;
    font-family:'Fraunces', serif;
    font-size:130px;
    line-height:1;
    color:var(--accent);
    opacity:0.08;
    pointer-events:none;
  }
  .next-carousel-card .preview-chapter{position:relative;z-index:1;margin-bottom:0;}
  .next-carousel-card .preview-quote{position:relative;z-index:1;font-size:17px;line-height:1.5;}

  @media (max-width:820px){
    .preview-row{grid-template-columns:1fr;gap:22px;}
    .preview-row.reverse .preview-img{order:1;}
    .preview-row.reverse .preview-text{order:2;}
    .next-inner{grid-template-columns:1fr;}
    .next-img{justify-self:center;}
  }

  /* ---------- How to get it ---------- */
  .getit{padding:96px 0 100px;}
  .section-head{
    max-width:56ch;
    margin-bottom:52px;
  }
  .eyebrow-2{
    font-size:12.5px;letter-spacing:0.24em;text-transform:uppercase;
    color:var(--accent);font-weight:600;display:block;margin-bottom:14px;
  }
  .getit h2{font-size:32px;}
  .cards{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:26px;
  }
  .card{
    border:1px solid var(--line);
    background:var(--bg-raised);
    padding:36px 32px;
    display:flex;
    flex-direction:column;
    gap:16px;
    transition:border-color 0.25s ease, transform 0.25s ease;
  }
  .card:hover{border-color:var(--line-strong);transform:translateY(-4px);}
  .card .num{
    font-family:'Fraunces', serif;
    font-style:italic;
    font-size:14px;
    color:var(--accent);
  }
  .card h3{font-size:21px;color:var(--text);}
  .card p{font-size:14.5px;color:var(--text-secondary);margin:0;flex:1;}
  .card .btn{align-self:flex-start;margin-top:6px;}

  /* ---------- Testimonios ---------- */
  .testimonials{
    background:var(--bg-alt);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:88px 0 96px;
  }
  .testi-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:26px;
    margin-top:52px;
  }
  .testi-card{
    background:var(--bg);
    border:1px solid var(--line);
    padding:32px 30px;
    display:flex;
    flex-direction:column;
    gap:16px;
    position:relative;
  }
  .testi-mark{
    font-family:'Fraunces', serif;
    font-size:44px;
    line-height:1;
    color:var(--accent);
    opacity:0.6;
  }
  .testi-quote{
    font-family:'Fraunces', serif;
    font-style:italic;
    font-size:16.5px;
    line-height:1.6;
    color:var(--text);
  }
  .testi-foot{
    display:flex;
    align-items:center;
    gap:12px;
    margin-top:4px;
  }
  .testi-avatar{
    width:36px;height:36px;border-radius:50%;
    background:var(--accent);
    color:var(--bg);
    display:flex;align-items:center;justify-content:center;
    font-family:'Fraunces', serif;font-size:13px;font-weight:600;
    flex-shrink:0;
  }
  .testi-name{font-size:13.5px;font-weight:600;color:var(--text);}
  .testi-source{font-size:12px;color:var(--text-secondary);display:block;}
  .testi-card.placeholder{
    justify-content:center;
    align-items:flex-start;
    color:var(--text-secondary);
    border-style:dashed;
    border-color:var(--line-strong);
    background:transparent;
  }
  .testi-card.placeholder p{font-size:14px;font-style:italic;margin:0;}

  @media (max-width:820px){
    .testi-grid{grid-template-columns:1fr;}
  }

  /* ---------- Avisame cuando salga ---------- */
  .notify{padding:88px 0 100px;}
  .notify-box{
    background:var(--bg-raised);
    border:1px solid var(--line);
    padding:52px 48px;
    display:grid;
    grid-template-columns:1.1fr 1fr;
    gap:40px;
    align-items:center;
  }
  .notify-copy h2{color:var(--text);font-size:26px;line-height:1.25;}
  .notify-copy p{
    color:var(--text-secondary);font-size:14.5px;margin-top:14px;max-width:46ch;
  }
  .notify-form{
    display:flex;
    flex-direction:column;
    gap:12px;
  }
  .notify-row{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
  }
  .notify-input{
    flex:1;
    min-width:180px;
    padding:15px 18px;
    border:1px solid var(--line-strong);
    background:rgba(224,251,252,0.04);
    color:var(--text);
    font-family:'Public Sans', sans-serif;
    font-size:14.5px;
    border-radius:2px;
    transition:border-color 0.25s ease;
  }
  .notify-input::placeholder{color:var(--text-secondary);opacity:0.7;}
  .notify-input:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent);}
  .notify-btn{
    padding:15px 24px;
    border-radius:2px;
    border:none;
    background:var(--accent);
    color:var(--bg);
    font-size:14px;font-weight:600;letter-spacing:0.04em;text-transform:uppercase;
    cursor:pointer;
    white-space:nowrap;
    transition:background 0.25s ease;
  }
  .notify-btn:hover{background:var(--accent-strong);}
  .notify-fine{font-size:11.5px;color:var(--text-secondary);opacity:0.75;}

  @media (max-width:820px){
    .notify-box{grid-template-columns:1fr;padding:38px 28px;}
  }

  /* ---------- Author ---------- */
  .author{
    max-width:var(--max);margin:0 auto;
    padding:96px 28px 110px;
    display:grid;
    grid-template-columns:0.7fr 1.3fr;
    gap:48px;
    align-items:start;
  }
  .author-badge{
    width:100%;
    max-width:340px;
    aspect-ratio:1/1;
    background:var(--bg-raised);
    border:1px solid var(--line-strong);
    display:flex;align-items:center;justify-content:center;
    overflow:hidden;
  }
  .author-badge span{
    font-family:'Fraunces', serif;
    color:var(--text);
    font-size:15px;
    letter-spacing:0.16em;
    text-align:center;
    line-height:1.6;
    padding:0 18px;
    text-transform:uppercase;
  }
  .author-badge img{
    width:100%;
    height:100%;
    object-fit:cover;
    display:block;
  }
  .author h2{font-size:26px;margin-bottom:16px;}
  .author p{font-size:15.5px;color:var(--text-secondary);max-width:62ch;}
  .author p+p{margin-top:14px;}
  .author em{color:var(--text);font-style:italic;}

  footer{
    border-top:1px solid var(--line);
    padding:34px 0 44px;
  }
  footer .wrap{
    display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
  }
  footer p{font-size:12.5px;color:var(--text-secondary);margin:0;letter-spacing:0.02em;}
  footer a{transition:color 0.25s ease;}
  footer a:hover{color:var(--accent);}

  @media (max-width:820px){
    .hero{grid-template-columns:1fr;padding:56px 24px 80px;}
    .hero-art{order:-1;}
    .synopsis .wrap{grid-template-columns:1fr;}
    .cards{grid-template-columns:1fr;}
    .author{grid-template-columns:1fr;}
    .author-badge{max-width:240px;margin:0 auto;}
    .cta-row .btn{width:100%;justify-content:center;}
  }

  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
  @media (prefers-reduced-motion:reduce){*{scroll-behavior:auto !important;}}