/* ===== Base mobile-first ===== */
:root{
  --bg:#f5f3ef; --card:#fff; --ink:#1b1f26; --muted:#5d6470; --line:#e3ded5;
  --steel:#1b1f26; --steel-2:#2b313b;
  --spark:#e8590c; --spark-2:#ff7a1a;
  --amz:#ffb000; --amz-ink:#1b1f26;
  --ok:#1f8a4c; --ko:#c0392b; --warn-bg:#fff4e5; --warn-line:#f2c48d;
  --r:14px; --tab:64px;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#121418;--card:#1b1f26;--ink:#eceae6;--muted:#9aa1ab;--line:#2c323c;--warn-bg:#2a2216;--warn-line:#6b4b22}
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,sans-serif;padding-bottom:calc(var(--tab) + env(safe-area-inset-bottom))}
body.has-cta{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
h1{font-size:1.65rem;line-height:1.2;margin:.4em 0 .3em;letter-spacing:-.01em}
h2{font-size:1.25rem;line-height:1.25;margin:0 0 .7em}
h3{font-size:1.05rem;margin:.2em 0}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.block{margin:28px auto}
.lead{color:var(--muted);font-size:1.05rem;margin:0 0 16px}
.small{font-size:.88rem}.muted{color:var(--muted)}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:99}

/* ===== Header ===== */
.topbar{position:sticky;top:0;z-index:20;background:var(--steel);color:#fff;box-shadow:0 2px 10px rgba(0,0,0,.15)}
.topbar-in{display:flex;align-items:center;gap:10px;height:56px}
.logo{display:flex;align-items:center;gap:6px;text-decoration:none;font-weight:800;font-size:1.1rem;color:#fff;white-space:nowrap}
.logo svg{color:var(--spark-2)}
.topsearch{flex:1;min-width:0}
.topsearch input{width:100%;height:38px;border:0;border-radius:10px;padding:0 12px;font-size:16px;background:var(--steel-2);color:#fff}
.topsearch input::placeholder{color:#9aa1ab}
.menu{position:relative}
.menu summary{list-style:none;cursor:pointer;font-size:1.5rem;width:40px;height:40px;display:grid;place-items:center;border-radius:10px}
.menu summary::-webkit-details-marker{display:none}
.menu[open] summary{background:var(--steel-2)}
.menu-panel{position:absolute;right:0;top:46px;width:min(300px,92vw);max-height:75vh;overflow:auto;background:var(--card);color:var(--ink);border-radius:var(--r);box-shadow:0 12px 40px rgba(0,0,0,.25);padding:8px}
.menu-panel a{display:block;padding:11px 12px;border-radius:10px;text-decoration:none}
.menu-panel a:hover{background:var(--bg)}
.menu-panel hr{border:0;border-top:1px solid var(--line);margin:6px 0}

/* ===== Botones ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:10px 18px;border-radius:12px;border:0;background:var(--spark);color:#fff;font-weight:700;font-size:1rem;text-decoration:none;cursor:pointer;transition:transform .08s}
.btn:active{transform:scale(.98)}
.btn-big{min-height:54px;font-size:1.08rem;width:100%}
.btn-amz{background:var(--amz);color:var(--amz-ink)}
.btn-ghost{background:transparent;color:var(--ink);border:2px solid var(--line)}
.link-amz{font-weight:700;color:var(--spark);text-decoration:none}

/* ===== Hero ===== */
.hero{background:radial-gradient(120% 90% at 85% 0%,#3a2a1c 0%,var(--steel) 55%);color:#fff;padding:30px 0 34px}
.hero h1{font-size:2rem;margin-top:0}
.hero p{color:#cfd3d9;margin:0 0 18px}
.hero .hero-note{font-size:.9rem;margin:14px 0 0;color:#aab0b8}

/* ===== Herramientas / categorías / kits ===== */
.tools{display:grid;grid-template-columns:1fr;gap:10px}
.tool{display:grid;grid-template-columns:44px 1fr;grid-template-rows:auto auto;column-gap:10px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;text-decoration:none}
.tool span{grid-row:1/3;font-size:1.7rem}
.tool small{color:var(--muted)}
.cats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.cat{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:12px;text-decoration:none;font-weight:600;font-size:.93rem;line-height:1.25;min-height:60px}
.cat-ico{font-size:1.4rem}
.kits{display:grid;gap:10px}
.kit{display:flex;flex-direction:column;gap:4px;background:var(--card);border:1px solid var(--line);border-left:5px solid var(--spark);border-radius:var(--r);padding:14px;text-decoration:none}
.kit span{color:var(--muted);font-size:.93rem}
.kit small{color:var(--muted)}
.kit-hl{background:var(--warn-bg);border-color:var(--warn-line);border-left-color:var(--spark);margin:16px 0}

/* ===== Tarjetas ===== */
/* Móvil: tarjeta horizontal, miniatura a la izquierda y datos a la derecha */
.grid{display:grid;grid-template-columns:1fr;gap:10px}
.card{display:grid;grid-template-columns:96px 1fr;gap:12px;align-items:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:12px}
.card-img{display:block;background:#fff;aspect-ratio:1/1;border-radius:10px;border:1px solid var(--line);overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:contain;padding:6px}
.card-body{display:flex;flex-direction:column;gap:6px;min-width:0}
.card-body h3{font-size:1rem;line-height:1.25;margin:0}
.card-body h3 a{text-decoration:none}
.chips-s{display:flex;flex-wrap:wrap;gap:5px}
.chip-s{font-size:.74rem;font-weight:700;line-height:1;padding:5px 8px;border-radius:999px;background:var(--bg);border:1px solid var(--line);color:var(--ink);white-space:nowrap}
.chip-s:first-child{background:var(--steel);border-color:var(--steel);color:#fff}
.card .verdict{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:.88rem}
.card-stars{margin:0;font-size:.9rem}.card-stars small{color:var(--muted)}
.card-actions{display:flex;align-items:center;gap:12px;margin-top:4px;flex-wrap:wrap}
.card-actions .btn{min-height:40px;padding:8px 14px;font-size:.92rem}
.card-more{font-size:.86rem;font-weight:600;color:var(--muted);text-decoration:none}
.product-head .chips-s{margin:0 0 12px}
.product-head .chip-s{font-size:.82rem;padding:6px 10px}
.tag{margin:0;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--spark)}
.verdict{margin:0;color:var(--muted);font-size:.93rem}
.stars{color:var(--amz);letter-spacing:1px}
.price{margin:0}
.price b{font-size:1.15rem}
.price small{color:var(--muted);font-size:.78rem}
.product-head .price{margin:0 0 4px}
.product-head .price b{font-size:1.5rem}
.price-note{margin:0 0 12px;font-size:.75rem;color:var(--muted);line-height:1.4}

/* ===== Chips / migas ===== */
.crumbs{font-size:.85rem;color:var(--muted);margin:14px 0 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crumbs a{text-decoration:none}
.chips{display:flex;gap:8px;overflow-x:auto;padding:4px 0 14px;scrollbar-width:none}
.chip{flex:none;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:var(--card);text-decoration:none;font-size:.9rem}
.chip.on{background:var(--steel);color:#fff;border-color:var(--steel)}
.hint{display:block;background:var(--card);border:1px dashed var(--spark);border-radius:var(--r);padding:12px 14px;margin:0 0 14px;text-decoration:none;font-weight:600}
.empty{background:var(--card);border-radius:var(--r);padding:18px;color:var(--muted)}

/* ===== Ficha producto ===== */
.product{display:grid;gap:18px;margin-top:8px}
.product-img{background:#fff;border-radius:var(--r);border:1px solid var(--line);aspect-ratio:4/3}
.product-img img{width:100%;height:100%;object-fit:contain;padding:14px}
.product-head h1{margin:.2em 0}
.rating{margin:0 0 10px}.rating small{color:var(--muted)}
.verdict-box{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--spark);border-radius:var(--r);padding:12px 14px;margin:0 0 14px}
.verdict-box p{margin:4px 0 0}
.fit{display:grid;gap:10px}
.fit>div{background:var(--card);border-radius:var(--r);padding:12px 14px;border:1px solid var(--line)}
.fit p{margin:4px 0 0}
.proscons{display:grid;gap:14px}
.proscons ul{margin:0;padding:0;list-style:none}
.proscons li{padding:6px 0 6px 28px;position:relative;border-bottom:1px solid var(--line)}
.pros li::before{content:"✔";position:absolute;left:4px;color:var(--ok);font-weight:700}
.cons li::before{content:"✖";position:absolute;left:4px;color:var(--ko);font-weight:700}
.prose p{margin:0 0 1em}
.byline{color:var(--muted);font-style:italic}
.specs{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px;margin:0}
.specs dt{color:var(--muted)}.specs dd{margin:0;font-weight:600}

/* Barra CTA fija */
.cta-bar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;align-items:center;gap:10px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:var(--card);border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(0,0,0,.08)}
.cta-title{flex:1;min-width:0;font-weight:600;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* Kit */
.kit-list{list-style:none;padding:0;margin:18px 0}
.kit-item{display:grid;grid-template-columns:88px 1fr;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:10px;margin-bottom:10px}
.kit-item img{background:#fff;border-radius:10px;object-fit:contain;aspect-ratio:4/3}
.kit-item p{margin:4px 0;color:var(--muted);font-size:.92rem}
.kit-item-t{font-weight:700;text-decoration:none}

/* ===== Asistente ===== */
.wizard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px}
.wz-progress{height:6px;background:var(--line);border-radius:6px;overflow:hidden;margin-bottom:12px}
.wz-progress span{display:block;height:100%;width:0;background:var(--spark);transition:width .25s}
.wz-step{border:0;margin:0 0 18px;padding:0}
.wz-step legend{font-weight:800;font-size:1.2rem;padding:0;margin-bottom:10px}
.wz-step legend small{display:block;font-weight:600;font-size:.8rem;color:var(--muted)}
.opts{display:grid;gap:8px}
.opt{position:relative;display:block;cursor:pointer}
.opt input{position:absolute;opacity:0;pointer-events:none}
.opt span{display:flex;flex-direction:column;border:2px solid var(--line);border-radius:12px;padding:12px 14px;min-height:56px;justify-content:center}
.opt small{color:var(--muted)}
.opt input:checked+span{border-color:var(--spark);background:var(--warn-bg)}
.opt input:focus-visible+span{outline:3px solid var(--spark-2);outline-offset:2px}
.wz-nav{display:flex;gap:10px}
.js .wz-step{display:none}
.js .wz-step.active{display:block}
.js #wz-submit{display:none}
.js.wz-last #wz-submit{display:inline-flex}
.result-head{background:var(--steel);color:#fff;border-radius:var(--r);padding:18px;margin:10px 0 14px}
.result-head small{color:#aab0b8}
.result-head h1{margin:.1em 0}
.result-head p{margin:0;color:#cfd3d9}
.why{padding-left:20px;margin:0 0 14px}.why li{margin-bottom:6px}
.warn{background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:var(--r);padding:12px 14px}
.warn ul{margin:6px 0 0;padding-left:20px}
.warn-inline{background:var(--warn-bg);border-radius:10px;padding:10px 12px}
.share{margin:20px 0;text-align:center}
.faq{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:8px}
.faq summary{font-weight:700;cursor:pointer}
.faq p{margin:8px 0 0}

/* ===== Calculadoras ===== */
.calc{display:grid;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;margin-bottom:16px}
.calc label{display:grid;gap:6px;font-weight:600}
.calc input,.calc select{height:48px;border:2px solid var(--line);border-radius:10px;padding:0 12px;font-size:16px;background:var(--bg);color:var(--ink)}
.calc input:focus,.calc select:focus{border-color:var(--spark);outline:0}
.result-box{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:0 0 10px}
.result-box div{background:var(--steel);color:#fff;border-radius:var(--r);padding:14px;text-align:center}
.result-box small{display:block;color:#aab0b8}
.result-box b{font-size:1.5rem;color:var(--spark-2)}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;background:var(--card);border-radius:12px;overflow:hidden;margin-bottom:12px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--steel);color:#fff;font-size:.9rem}

/* ===== Libro / about ===== */
.book{display:flex;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px}
.book-ico{font-size:2.6rem}
.about-mini{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px}

/* Libro del autor */
.bookbox{display:grid;grid-template-columns:104px 1fr;gap:16px;align-items:start;background:var(--card);border:1px solid var(--line);border-left:5px solid var(--spark);border-radius:var(--r);padding:16px;margin:18px 0}
.bookbox h2{font-size:1.15rem;margin:.2em 0 .3em}
.bookbox-title{margin:0 0 8px;font-style:italic;color:var(--muted);font-size:.92rem}
.bookbox-list{margin:0 0 8px;padding-left:18px;font-size:.93rem}
.bookbox-list li{margin-bottom:3px}
.bookbox .btn{margin-top:4px}
.bookcover-link{display:block;text-decoration:none}
.bookcover-img{width:100%;height:auto;border-radius:4px;box-shadow:4px 6px 14px rgba(0,0,0,.25)}
.bookcover{display:flex;flex-direction:column;justify-content:space-between;aspect-ratio:2/3;padding:10px 8px;border-radius:3px 6px 6px 3px;
  background:linear-gradient(90deg,#11141a 0 8px,#1b1f26 8px);color:#fff;box-shadow:4px 6px 14px rgba(0,0,0,.25);border-top:4px solid var(--spark)}
.bookcover-bolt{font-size:1.4rem;color:var(--spark-2)}
.bookcover-t{font-weight:800;font-size:.7rem;line-height:1.2;text-transform:uppercase;letter-spacing:.02em}
.bookcover-a{font-size:.58rem;color:#aab0b8}
.bookbox-sm{grid-template-columns:72px 1fr;padding:12px 14px}
.bookbox-sm h2{font-size:1rem}
.bookbox-sm .bookcover-t{font-size:.5rem}
.bookbox-sm .bookcover-a{display:none}

/* Tarjeta de autor en las fichas */
.authorcard{display:flex;gap:12px;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;margin:14px 0 0}
.authorcard-av{flex:none;width:44px;height:44px;border-radius:50%;background:var(--steel);display:grid;place-items:center;font-size:1.4rem}
.authorcard p{margin:0}
.authorcard-n{font-weight:700}
.authorcard-n a{color:var(--spark);text-decoration:none}
.authorcard-d{font-size:.86rem;color:var(--muted)}

/* Sobre mí */
.about-head{display:flex;gap:14px;align-items:center;margin-top:14px}
.about-head h1{margin:0}
.about-av{flex:none;width:64px;height:64px;border-radius:50%;background:var(--steel);display:grid;place-items:center;font-size:2rem}
.about-role{margin:0;color:var(--spark);font-weight:700}
.creds{list-style:none;padding:0;margin:16px 0;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.creds li{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px;text-align:center}
.creds b{display:block;font-size:1.05rem;color:var(--ink)}
.creds span{font-size:.78rem;color:var(--muted);line-height:1.3;display:block}
.footer-author{margin:0 0 12px;color:#dfe2e6}

/* ===== Juego de simbología ===== */
.sym-ref{stroke:var(--ink);stroke-width:2;fill:none}
.sym-dash{stroke:var(--ink);stroke-width:1.6;stroke-dasharray:6 4;fill:none}
.sym-path{stroke:var(--spark);stroke-width:2.4;fill:none;stroke-linejoin:round;stroke-linecap:round}
.sym-fill{fill:var(--ink)}
.sym-txt{font:700 14px system-ui,sans-serif;fill:var(--ink)}
.sg{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;margin-bottom:10px}
.sg-svg{display:block;width:100%;max-width:440px;height:auto;margin:0 auto}
.sg-hero{background:var(--bg);border-radius:12px;padding:8px;margin-bottom:14px}
.sg-best{text-align:center;font-weight:700;margin:0 0 10px}
.sg-note{text-align:center;margin:10px 0 0}
.sg-top{display:flex;align-items:center;gap:10px;font-weight:700;font-size:.9rem;margin-bottom:10px}
.sg-bar{flex:1;height:6px;background:var(--line);border-radius:6px;overflow:hidden}
.sg-bar span{display:block;height:100%;width:0;background:var(--spark);transition:width .25s}
.sg-draw{background:var(--bg);border-radius:12px;padding:6px;margin-bottom:12px}
.sg-q{font-weight:800;font-size:1.1rem;margin:0 0 10px}
.sg-opts{display:grid;gap:8px}
.sg-opt{text-align:left;font:inherit;font-weight:600;min-height:52px;padding:10px 14px;border-radius:12px;border:2px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer}
.sg-opt:not(:disabled):active{transform:scale(.99)}
.sg-opt.ok{border-color:var(--ok);background:#e7f6ed;color:#1f6b3d}
.sg-opt.ko{border-color:var(--ko);background:#fde8e6;color:#8f2a20}
.sg-opt:disabled{cursor:default}
.sg-fb{margin-top:12px;padding:12px 14px;border-radius:12px}
.sg-fb p{margin:0 0 10px}
.sg-fb.is-ok{background:#e7f6ed;color:#1b4d31}
.sg-fb.is-ko{background:var(--warn-bg);color:var(--ink)}
.sg-result{text-align:center;padding:10px 0}
.sg-medal{font-size:3.2rem;margin:0;line-height:1}
.sg-level{font-size:1.5rem;font-weight:800;margin:8px 0 4px}
.sg-points{font-weight:700;margin:0 0 6px}
.sg-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:12px 0}
.sym-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:18px}
.sym-card{display:flex;flex-direction:column;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px}
.sym-card .sym-svg{width:100%;height:auto;background:var(--bg);border-radius:8px}
.sym-card b{font-size:.88rem;line-height:1.25}
.sym-card span{font-size:.8rem;color:var(--muted);line-height:1.35}
@media (min-width:640px){.sg-opts{grid-template-columns:1fr 1fr}.sym-grid{grid-template-columns:repeat(4,1fr)}}

/* ===== Footer y tabbar ===== */
.footer{background:var(--steel);color:#aab0b8;padding:24px 0;margin-top:40px;font-size:.88rem}
.footer a{color:#dfe2e6}
.aff-note{margin:0 0 12px}
.footer-links{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:10px}
.copy{margin:0}
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:grid;grid-template-columns:repeat(4,1fr);height:calc(var(--tab) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--card);border-top:1px solid var(--line)}
.tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:.75rem;text-decoration:none;color:var(--muted)}
.tabbar a span{font-size:1.25rem}
.tabbar a.on{color:var(--spark);font-weight:700}

/* ===== Tablet / escritorio ===== */
@media (min-width:640px){
  .grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .card{grid-template-columns:1fr;padding:0;overflow:hidden}
  .card-img{aspect-ratio:16/10;border:0;border-bottom:1px solid var(--line);border-radius:0}
  .card-img img{padding:12px}
  .card-body{padding:0 14px 14px;flex:1;height:100%}
  .card-actions{margin-top:auto;padding-top:6px}
  .cats{grid-template-columns:repeat(3,1fr)}
  .tools{grid-template-columns:repeat(2,1fr)}
  .kits{grid-template-columns:repeat(2,1fr)}
  .fit,.proscons{grid-template-columns:1fr 1fr}
  .opts{grid-template-columns:1fr 1fr}
  .btn-big{width:auto}
  .calc{grid-template-columns:repeat(3,1fr);align-items:end}
  .calc .btn{grid-column:1/-1;justify-self:start}
}
@media (min-width:960px){
  body{padding-bottom:0}
  body.has-cta{padding-bottom:76px}
  .tabbar{display:none}
  .grid{grid-template-columns:repeat(3,1fr)}
  .cats{grid-template-columns:repeat(4,1fr)}
  .tools{grid-template-columns:repeat(4,1fr)}
  .product{grid-template-columns:1fr 1fr;align-items:start}
  .product>.fit,.product>.proscons,.product>.prose,.product>.specs{grid-column:1/-1}
  .hero h1{font-size:2.6rem}
  .hero .wrap{max-width:760px}
}