/* =========================
   Variables
   ========================= */
   :root{
    --bg:#ffffff; --surface:#f8fafc; --text:#0f172a; --muted:#475569; --border:#e5e7eb;
    --accent:#0ea5a6; --accent-contrast:#ffffff;
    --maxw:1100px; --radius:14px; --shadow:0 6px 24px rgba(2,6,23,.06);
  
    /* Marca y portada */
    --logo-h:28px;
    --cover-w:340px;          /* ancho máx. de la portada */
    --cover-max-vh: 60vh;   /* altura máx. de la portada respecto a la ventana */
    --book-radius:14px;       /* esquinas del libro */
    --cover-fit:cover;        /* cover (llena con recorte) | contain (entera) */
    --cover-shadow:0 18px 38px rgba(2,6,23,.12);
    --cover-radius: 16px;
   
    /* Amazon */
    --amazon:#ff9900; --amazon-hover:#f59e0b; --amazon-text:#111827;

    --avatar-size: 100px;         /* cambia a 120–160px a tu gusto */

    --gutter: clamp(20px, 5vw, 64px);    /* margen interior lateral */
    
  }
  
  /* =========================
     Base
     ========================= */
  *{box-sizing:border-box}
  html,body{
    margin:0; padding:0;
    background:linear-gradient(180deg,#fff,#fafafa 60%,#f9fafb);
    color:var(--text);
    font-family:Poppins,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
    overflow-x:hidden;
  }
  a{color:inherit;text-decoration:none}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
  html{scroll-behavior:smooth}
  
  /* =========================
     Header y navegación
     ========================= */
  header{
    position:sticky;top:0;
    backdrop-filter:saturate(120%) blur(8px);
    background:rgba(255,255,255,.7);
    z-index:50;border-bottom:1px solid var(--border);
  }
  .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
  .brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.3px}
  .brand .logo{height:var(--logo-h);width:auto;object-fit:contain;display:block}
  
  /* Menú: todos los ítems con la misma altura */
  .menu{display:flex;align-items:center;gap:22px}
  .menu .nav-link{
    display:inline-flex;align-items:center;justify-content:center;
    padding:10px 14px;border-radius:12px;border:1px solid transparent;
    line-height:1;font-weight:600;
  }
  .menu .nav-link:hover{background:rgba(2,6,23,.04)}
  .menu .nav-link.cta{border:1px solid var(--border);background:#fff}
  
  /* =========================
     Botones
     ========================= */
  .btn{
    padding:12px 16px;border-radius:10px;border:1px solid var(--border);
    transition:.2s;background:#fff;cursor:pointer
  }
  .btn.primary{background:var(--accent);color:var(--accent-contrast);font-weight:700;border-color:transparent}
  .btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
  /* Amazon */
  .btn.amazon{background:var(--amazon);color:var(--amazon-text);border-color:transparent;font-weight:700}
  .btn.amazon:hover{background:var(--amazon-hover);box-shadow:var(--shadow)}
  /* Grupo de CTAs */
  .buttons{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
  .buttons .btn{white-space:nowrap}
  
  /* =========================
     Hero (dos columnas)
     ========================= */
  .hero{
    display:grid;grid-template-columns:1.1fr .9fr;
    gap:36px;align-items:center;padding:64px 0;
  }
  .hero h1{
    font-family:Merriweather,serif;font-weight:700;
    font-size:clamp(34px,5vw,64px);line-height:1.1;margin:0 0 14px
  }
  .hero p{color:var(--muted);max-width:62ch;margin:0 0 10px}
  .tag{
    display:inline-flex;gap:8px;align-items:center;border:1px solid var(--border);
    padding:6px 10px;border-radius:999px;font-size:13px;color:var(--muted);margin-bottom:12px
  }
  .tag .spark{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(14,165,166,.6)}
  
  /* =========================
     Portada (redondeo real)
     ========================= 
  */
  .coverbox{
    display:inline-block;
    width:min(var(--cover-w), 100%);   /* ancho controlado por variable */
    border:1px solid var(--border);
    border-radius:var(--cover-radius);
    background:#fff;
    box-shadow:0 18px 38px rgba(2,6,23,.12);
    overflow:hidden;
  }
  
  /* ENTREGAR ENTERA (sin recorte) */
  .cover--contain > img{
    display:block;
    width:100%;
    height:auto;                /* mantiene proporción automáticamente */
    max-height:var(--cover-max-h);
    object-fit:contain;
    border-radius:inherit;
  }
  .book-card{ background:transparent; border:0; padding:0; box-shadow:none; display:grid; gap:12px; }

  /* =========================
     Sobre mí (foto + texto)
     ========================= */
     /* === SOBRE MÍ: foto izq + texto dcha (override fuerte) === */
section#sobre-mi .author-card{
    display:grid !important;
    grid-template-columns: 140px 1fr !important; /* cambia 120–160px si quieres */
    gap:22px !important;
    align-items:center !important;
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:18px;
    box-shadow:var(--shadow);
    max-width:880px;
  }
  
  section#sobre-mi .author-card .avatar{
    width:140px !important;
    height:140px !important;
    object-fit:cover !important;   /* usa contain si no quieres recorte */
    border-radius:9999px;
    border:1px solid var(--border);
    box-shadow:0 6px 18px rgba(2,6,23,.08);
  }
  
  section#sobre-mi .author-card .bio{
    margin:0;
    color:var(--muted);
    line-height:1.6;
  }
  
  /* Responsive: en móvil apila */
  @media (max-width: 700px){
    section#sobre-mi .author-card{
      grid-template-columns:1fr !important;
      text-align:left;
    }
    section#sobre-mi .author-card .avatar{ justify-self:start; }
  }
  
  /* =========================
     Secciones, tipografía y pie
     ========================= */
  section{padding:42px 0;border-top:1px solid var(--border)}
  h2{font-family:Merriweather,serif;font-size:clamp(22px,3vw,32px);margin:0 0 8px}
  .lead{color:var(--muted);margin:0 0 18px}
  footer{padding:36px 0;color:var(--muted);font-size:14px}
  
  /* Anclas con header sticky */
  #contacto, #sobre-mi{scroll-margin-top:90px}
  
  /* =========================
     Utilidades de grid
     ========================= */
  .grid{display:grid;gap:18px}
  @media(min-width:860px){ .grid.cols-3{grid-template-columns:repeat(3,1fr)} }
  
  /* =========================
     Página de Recursos
     ========================= */
  .tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:12px 0 24px}
  .input{padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#fff;min-width:260px}
  .chips{display:flex;gap:8px;flex-wrap:wrap}
  .chip{padding:6px 10px;border-radius:999px;border:1px solid var(--border);font-size:12px;color:var(--muted);cursor:pointer}
  .chip.active{background:var(--accent);color:var(--accent-contrast);border-color:transparent}
  
  details.acc{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
  details.acc summary{list-style:none;cursor:pointer;padding:18px;display:flex;align-items:center;gap:10px}
  details.acc summary::-webkit-details-marker{display:none}
  .caret{width:18px;height:18px;flex:0 0 18px;border-radius:4px;border:1px solid var(--border);
    display:inline-flex;align-items:center;justify-content:center}
  .caret:before{content:"›";display:block;transform:rotate(90deg)}
  details[open] .caret:before{transform:rotate(270deg)}
  .summary-text{display:flex;flex-direction:column}
  .summary-text h2{margin:0;font-size:18px}
  .summary-text .meta{color:var(--muted);font-size:13px}
  .panel{padding:0 18px 18px}
  .panel ul{margin:10px 0 0 16px}
  .panel li{color:var(--muted);margin:8px 0}
  .links{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}
  .link{padding:4px 8px;border:1px solid var(--border);border-radius:8px;font-size:12px}
  
  /* =========================
     Responsive Hero
     ========================= */
  @media(max-width:900px){
    .hero{grid-template-columns:1fr}
    .book-card{justify-self:center}
  }
  
.wrap{ padding-inline: var(--gutter); }

.hero{
  gap: clamp(24px, 5vw, 60px);         /* más separación entre columnas */
  justify-content: center;             /* centra el conjunto dentro del wrap */
  align-items: start;
}

/* La portada no se pega al borde y se centra en su columna */
.hero aside.book-card{ justify-self: center; }

/* En móvil, la portada se limita al ancho visual y se centra */
@media (max-width: 900px){
  .hero{ grid-template-columns: 1fr; }
  .hero aside.book-card .book-cover-wrap{
    width: min(92vw, var(--cover-w));
  }
}

/* =========================
   MENÚ HAMBURGUESA - VERSIÓN FINAL
   ========================= */

.hamburger{
  display:none;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  width:44px;
  height:44px;
  background:transparent;
  border:1px solid var(--border);
  border-radius:10px;
  cursor:pointer;
  padding:0;
  transition: all 0.3s ease;
  z-index: 1002;
}

.hamburger:hover{
  background:var(--surface);
  border-color:var(--accent);
}

.hamburger .bar{
  display:block;
  width:20px;
  height:2px;
  background:var(--text);
  margin:3px 0;
  transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
  border-radius:2px;
}

/* Animación del botón hamburguesa */
.hamburger.active .bar:nth-child(1){
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active .bar:nth-child(2){
  opacity: 0;
}
.hamburger.active .bar:nth-child(3){
  transform: rotate(-45deg) translate(7px, -6px);
}

/* BACKDROP */
.backdrop{
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  background:rgba(15,23,42,.35);
  opacity:0;
  visibility:hidden;
  transition: all 0.3s ease;
  z-index:1000;
}
.backdrop.show{
  opacity:1;
  visibility:visible;
}

/* MENÚ MÓVIL - VERSIÓN FINAL */
@media (max-width: 900px){
  .hamburger{
    display:flex !important;
  }

  .menu{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    width:min(75vw, 280px);
    background:var(--bg);
    border-left:1px solid var(--border);
    box-shadow:-8px 0 32px rgba(2,6,23,.15);
    
    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:stretch;
    gap:8px;
    padding:20px 0;
    
    transform:translateX(100%);
    transition: transform 0.3s ease;
    z-index:1001;
  }

  .menu.open{
    transform: translateX(0) !important;
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
  }

  .menu .nav-link{
    display:block;
    padding:20px 24px;
    font-size:18px;
    text-align:left;
    font-weight:600;
    background:transparent;
    color:var(--text);
    transition: all 0.3s ease;
    border:none;
  }

  .menu .nav-link:hover{
    background:var(--surface);
    padding-left:32px;
  }

  .menu .nav-link.cta{
    background:transparent;
    color:var(--text);
    margin:0;
  }

  .menu .nav-link.cta:hover{
    background:var(--surface);
    padding-left:32px;
    color:var(--text);
  }
}

/* Control de scroll */
body.nav-open{
  overflow:hidden;
}

/* Estilo suave para blockquotes en Recursos */
.panel blockquote{
  margin: 0;
  padding: 8px 0 8px 14px;
  border-left: 3px solid var(--border);
  color: var(--muted);
  font-style: italic;
}
.panel blockquote cite{
  font-style: normal;
  color: var(--text);
}

/* === Recursos: layout simple con tarjetas === */
.cards{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

/* Tarjeta (usa <details>) */
.card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card summary{
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 22px 1fr;
  align-items: center;
  gap: 10px;
  padding: 16px 16px;
}
.card summary::-webkit-details-marker{ display:none; }

.card .caret{
  width:18px; height:18px; border-radius:4px;
  border:1px solid var(--border);
  display:inline-flex; align-items:center; justify-content:center;
  font-weight:700; color: var(--muted);
}
.card .caret::before{ content: "›"; transform: rotate(90deg); }
.card[open] .caret::before{ transform: rotate(270deg); }

.card .head h2{ margin:0; font-size:18px; }
.card .head .meta{ margin:2px 0 0; color:var(--muted); font-size:13px; }

.card .panel{ padding: 0 16px 16px; }
.card .panel ul{ margin:10px 0 0 18px; }
.card .panel li{ margin:8px 0; color:var(--text); }

/* Citas con un toque tipográfico */
.card blockquote{
  margin:0; padding:8px 0 8px 12px;
  border-left:3px solid var(--border);
  color:var(--muted); font-style: italic;
}
.card blockquote cite{ font-style: normal; color: var(--text); }

/* Buscador compacto */
.tools{ display:flex; justify-content:flex-start; margin:12px 0 18px; }
.input{ min-width: 280px; }

/* === Tabs: sencillos y limpios === */
.tabs{ margin-top: 10px; }
.tabs-nav{
  display:flex; gap:10px; flex-wrap:wrap; margin:0 0 14px;
}
.tab-btn{
  appearance:none; border:1px solid var(--border); background:#fff;
  padding:10px 14px; border-radius:999px; cursor:pointer; font-weight:600;
  color:var(--text);
}
.tab-btn[aria-selected="true"]{
  background:var(--accent); color:var(--accent-contrast); border-color:transparent;
}

.tab-panels{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:16px;
}
.tab-panel{ display:block; }
.tab-panel:not(.active){ display:none; }
.tab-panel[hidden]{ display:none !important; } /* por accesibilidad */

.rc-list{ margin:0; padding-left:18px; }
.rc-item{ margin:8px 0; color:var(--muted); }
.rc-item strong{ color:var(--text); }

/* Citas con toque sutil */
.tab-panel blockquote{ margin:0; padding:6px 0 6px 12px; border-left:3px solid var(--border); font-style:italic; color:var(--muted); }
.tab-panel blockquote cite{ font-style:normal; color:var(--text); }

/* === Modal de adelanto === */
.modal{ position:fixed; inset:0; display:none; z-index:3000; }
.modal.open{ display:block; }
.modal__backdrop{ position:absolute; inset:0; background:rgba(2,6,23,.45); }

.modal__dialog{
  position:relative; max-width:560px; margin:8vh auto; background:#fff;
  border:1px solid var(--border); border-radius:16px; box-shadow:var(--shadow);
  padding:20px 20px 16px; z-index:1;
}
.modal__close{
  position:absolute; top:10px; right:10px; background:#fff; border:1px solid var(--border);
  width:36px; height:36px; border-radius:999px; cursor:pointer; font-size:18px; line-height:1;
}
#previewTitle{ margin:4px 0 6px; font-size:22px; }
.modal__lead{ margin:0 0 12px; color:var(--muted); }

.choices{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:12px; }
.choice{ display:inline-flex; align-items:center; gap:8px; border:1px solid var(--border);
         border-radius:999px; padding:8px 12px; cursor:pointer; user-select:none; }
.choice input{ appearance:none; width:12px; height:12px; border:1px solid var(--border);
               border-radius:50%; position:relative; }
.choice input:checked{ border-color:var(--accent); }
.choice input:checked::after{ content:""; position:absolute; inset:3px;
                              background:var(--accent); border-radius:50%; }
.choice span{ font-weight:600; }

.modal__cta{ margin-top:4px; }
.modal__mini{ margin:8px 0 0; color:var(--muted); font-size:12px; }