/* ============ Tramo Claro — estilos ============ */
:root{
  --paper:#f7f3ec;
  --paper-2:#efe8dc;
  --card:#fffdf9;
  --ink:#1d2a24;
  --ink-2:#4a5a52;
  --ink-3:#7b887f;
  --green:#1f5c45;
  --green-2:#2f7a5d;
  --green-soft:#dcebe2;
  --coral:#e2673f;
  --coral-soft:#fbe3d8;
  --line:#e1d8c9;
  --radius:16px;
  --shadow:0 1px 2px rgba(29,42,36,.06),0 8px 24px -12px rgba(29,42,36,.18);
  --serif:"Fraunces",Georgia,serif;
  --sans:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --max:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--green);text-underline-offset:3px}
a:hover{color:var(--coral)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:12px;background:var(--ink);color:#fff;padding:8px 12px;border-radius:8px;z-index:99}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:40;background:rgba(247,243,236,.88);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--serif);font-weight:700;font-size:22px;letter-spacing:-.02em}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--green);display:grid;place-items:center}
.logo:hover{color:var(--ink)}
.nav-links{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{display:block;padding:8px 14px;border-radius:999px;text-decoration:none;color:var(--ink-2);font-weight:500;font-size:15px}
.nav-links a:hover,.nav-links a[aria-current="page"]{background:var(--paper-2);color:var(--ink)}
.nav-cta{background:var(--ink)!important;color:#fff!important}
.nav-cta:hover{background:var(--green)!important}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 10px;cursor:pointer;color:var(--ink)}
@media (max-width:820px){
  .menu-btn{display:block}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:var(--paper);border-bottom:1px solid var(--line);padding:10px 16px 16px}
  .nav-links.open{display:flex}
}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 22px;border-radius:999px;font-weight:600;font-size:16px;text-decoration:none;border:0;cursor:pointer;transition:transform .15s,background .15s;font-family:var(--sans)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--coral);color:#fff}
.btn-primary:hover{background:#c9532e;color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}

/* ---------- Hero ---------- */
.hero{padding:72px 0 56px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--green);background:var(--green-soft);padding:6px 12px;border-radius:999px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--green-2);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.35}}
h1,h2,h3{font-family:var(--serif);letter-spacing:-.025em;line-height:1.12;color:var(--ink)}
.hero h1{font-size:clamp(40px,5.6vw,66px);margin:20px 0 18px;font-weight:600}
.hero h1 em{font-style:italic;color:var(--green)}
.hero p.lead{font-size:20px;color:var(--ink-2);max-width:540px;margin:0 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-trust{display:flex;gap:22px;margin-top:34px;color:var(--ink-3);font-size:14px;flex-wrap:wrap}
.hero-trust span{display:flex;align-items:center;gap:6px}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr;gap:36px}.hero{padding:44px 0 32px}}

/* Mini calculadora en el hero */
.quick{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow);position:relative}
.quick::before{content:"";position:absolute;inset:-14px -14px auto auto;width:90px;height:90px;border-radius:50%;background:var(--coral-soft);z-index:-1}
.quick h2{font-size:22px;margin:0 0 4px}
.quick .sub{color:var(--ink-3);font-size:14px;margin:0 0 20px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.field .hint{font-weight:400;color:var(--ink-3)}
.input{width:100%;font:inherit;font-size:18px;padding:13px 16px;border:1.5px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 4px var(--green-soft)}
.input-euro{position:relative}
.input-euro::after{content:"€";position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-weight:600}
.result{margin-top:6px;border-radius:14px;background:var(--green);color:#fff;padding:20px 22px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.result small{display:block;opacity:.8;font-size:13px}
.result strong{font-family:var(--serif);font-size:40px;line-height:1;font-weight:600}
.result .tramo-chip{background:rgba(255,255,255,.16);padding:6px 10px;border-radius:999px;font-size:13px;white-space:nowrap}

/* ---------- Secciones ---------- */
section{padding:64px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.section-head h2{font-size:clamp(30px,3.6vw,42px);margin:0}
.section-head p{margin:6px 0 0;color:var(--ink-2);max-width:560px}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:900px){.cards{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.cards{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:10px;transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfc3b0;color:var(--ink)}
.card .tag{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--coral)}
.card h3{font-size:22px;margin:0}
.card p{margin:0;color:var(--ink-2);font-size:15.5px}
.card .more{margin-top:auto;font-weight:600;color:var(--green);font-size:15px}
.card-art{height:120px;border-radius:12px;margin-bottom:6px;display:grid;place-items:center}
.card.soon{opacity:.72}
.card.soon:hover{transform:none;box-shadow:none}

.band{background:var(--ink);color:#e9efe9;border-radius:28px;padding:52px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.band h2{color:#fff;font-size:clamp(28px,3.2vw,38px);margin:0 0 12px}
.band p{color:#b9c6bd;margin:0}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.steps li{display:flex;gap:14px;align-items:flex-start;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);padding:16px;border-radius:14px}
.steps .n{flex:none;width:32px;height:32px;border-radius:50%;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px}
.steps b{color:#fff}
@media (max-width:900px){.band{grid-template-columns:1fr;padding:32px}}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.stat strong{font-family:var(--serif);font-size:36px;display:block;line-height:1.1;color:var(--green)}
.stat span{color:var(--ink-2);font-size:14.5px}
@media (max-width:800px){.stats{grid-template-columns:1fr 1fr}}

/* ---------- FAQ ---------- */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:4px 20px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;line-height:1;color:var(--green);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:0 0 16px;color:var(--ink-2)}

/* ---------- Artículo ---------- */
.article-wrap{display:grid;grid-template-columns:minmax(0,720px) 280px;gap:56px;justify-content:center;padding:40px 22px 64px;max-width:var(--max);margin:0 auto}
@media (max-width:1000px){.article-wrap{grid-template-columns:minmax(0,1fr)}.toc{display:none}}
.breadcrumbs{font-size:14px;color:var(--ink-3);margin-bottom:18px}
.breadcrumbs a{color:var(--ink-3)}
.article h1{font-size:clamp(34px,4.4vw,50px);margin:0 0 16px;font-weight:600}
.article .meta{display:flex;gap:16px;flex-wrap:wrap;color:var(--ink-3);font-size:14.5px;padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:28px}
.article .meta b{color:var(--ink-2);font-weight:600}
.article h2{font-size:30px;margin:44px 0 14px;scroll-margin-top:90px}
.article h3{font-size:22px;margin:30px 0 10px}
.article p,.article li{color:#2c3a33}
.article ul,.article ol{padding-left:22px}
.article li{margin-bottom:6px}
.tldr{background:var(--green-soft);border-radius:var(--radius);padding:20px 24px;margin:0 0 28px}
.tldr > b{display:block;font-family:var(--serif);font-size:19px;margin-bottom:6px}
.tldr ul{margin:0}
.note{border-left:4px solid var(--coral);background:var(--coral-soft);padding:14px 18px;border-radius:0 12px 12px 0;margin:22px 0;font-size:16px}
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--card);margin:18px 0}
table{border-collapse:collapse;width:100%;font-size:15.5px;min-width:520px}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--paper-2);font-weight:600;font-size:14px}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:#faf6ef}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tr.hl td{background:var(--green-soft);font-weight:600}
.toc{position:sticky;top:96px;align-self:start;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.toc b{font-family:var(--serif);font-size:17px}
.toc ol{padding-left:18px;margin:10px 0 0;font-size:14.5px}
.toc a{color:var(--ink-2);text-decoration:none}
.toc a:hover{color:var(--green)}
.toc .cta-mini{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:14.5px}
.author-box{display:flex;gap:16px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-top:40px}
.avatar{flex:none;width:56px;height:56px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-family:var(--serif);font-size:22px}
.sources{font-size:14.5px;color:var(--ink-2)}
.progress{position:fixed;top:0;left:0;height:3px;background:var(--coral);width:0;z-index:60}

/* Huecos para anuncios (AdSense) */
.ad-slot{margin:30px 0;min-height:120px;border:1px dashed #cdbfa9;border-radius:12px;display:grid;place-items:center;color:var(--ink-3);font-size:12px;letter-spacing:.08em;text-transform:uppercase;background:repeating-linear-gradient(45deg,transparent 0 10px,rgba(0,0,0,.015) 10px 20px)}

/* ---------- Calculadora completa ---------- */
.calc{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
@media (max-width:900px){.calc{grid-template-columns:1fr}}
.panel{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.seg{display:flex;background:var(--paper-2);border-radius:12px;padding:4px;gap:4px;margin-bottom:18px}
.seg button{flex:1;border:0;background:transparent;padding:10px;border-radius:9px;font:inherit;font-weight:600;font-size:14.5px;color:var(--ink-2);cursor:pointer}
.seg button[aria-pressed="true"]{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:15px;margin:6px 0 14px;cursor:pointer}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--green)}
.big-result{background:var(--green);color:#fff;border-radius:18px;padding:26px}
.big-result .label{opacity:.8;font-size:14px}
.big-result .amount{font-family:var(--serif);font-size:58px;line-height:1;margin:6px 0 4px;font-weight:600}
.big-result .yearly{opacity:.85}
.breakdown{margin-top:18px;display:grid;gap:8px}
.breakdown div{display:flex;justify-content:space-between;border-bottom:1px dashed var(--line);padding:8px 0;font-size:15.5px}
.breakdown div span:last-child{font-weight:600;font-variant-numeric:tabular-nums}
.bar-wrap{margin-top:20px}
.bar{height:10px;border-radius:999px;background:var(--paper-2);overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--green-2),var(--coral));width:0;transition:width .5s cubic-bezier(.2,.8,.2,1)}
.bar-legend{display:flex;justify-content:space-between;font-size:12.5px;color:var(--ink-3);margin-top:6px}

/* ---------- Newsletter / footer ---------- */
.newsletter{background:var(--coral-soft);border-radius:28px;padding:44px;display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:center}
.newsletter h2{margin:0 0 8px;font-size:32px}
.newsletter p{margin:0;color:var(--ink-2)}
.nl-form{display:flex;gap:10px;flex-wrap:wrap}
.nl-form .input{flex:1;min-width:200px}
.nl-msg{font-size:14px;color:var(--green);margin-top:8px;min-height:20px}
@media (max-width:800px){.newsletter{grid-template-columns:1fr;padding:30px}}

.site-footer{border-top:1px solid var(--line);margin-top:40px;padding:48px 0 30px;font-size:15px;color:var(--ink-2)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.foot-grid h4{font-family:var(--sans);font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink);margin:0 0 12px}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot-grid a{color:var(--ink-2);text-decoration:none}
.foot-grid a:hover{color:var(--green)}
.disclaimer{margin-top:34px;padding-top:20px;border-top:1px solid var(--line);font-size:13.5px;color:var(--ink-3);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
@media (max-width:800px){.foot-grid{grid-template-columns:1fr 1fr}}

/* ---------- Páginas simples (legales, sobre, contacto) ---------- */
.page{max-width:760px;margin:0 auto;padding:48px 22px 64px}
.page h1{font-size:clamp(34px,4.4vw,48px);margin:0 0 10px}
.page h2{font-size:24px;margin:34px 0 8px}
.page .updated{color:var(--ink-3);font-size:14.5px;margin-bottom:28px}
.placeholder{background:#fff3b0;padding:0 4px;border-radius:4px}

/* ---------- Banner de cookies ---------- */
.cookie{position:fixed;left:16px;right:16px;bottom:16px;max-width:560px;margin:0 auto;background:var(--ink);color:#e3ebe5;border-radius:18px;padding:20px 22px;z-index:80;box-shadow:0 20px 50px -10px rgba(0,0,0,.4);font-size:14.5px;display:none}
.cookie.show{display:block;animation:up .35s ease-out}
@keyframes up{from{transform:translateY(20px);opacity:0}}
.cookie p{margin:0 0 14px}
.cookie a{color:#fff}
.cookie-actions{display:flex;gap:8px;flex-wrap:wrap}
.cookie button{flex:1;min-width:120px;border:0;border-radius:999px;padding:11px 14px;font:inherit;font-weight:600;cursor:pointer}
.cookie .accept{background:var(--coral);color:#fff}
.cookie .reject{background:rgba(255,255,255,.12);color:#fff}

/* Animación de entrada suave */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.eyebrow .dot{animation:none}html{scroll-behavior:auto}}
.result strong{white-space:nowrap}
@media (max-width:480px){.result{flex-direction:column;align-items:flex-start}.result strong{font-size:36px}.hero-actions .btn{flex:1;justify-content:center}}
.exp{background:#fff7d6;border:2px dashed #e0c25a;border-radius:14px;padding:16px 20px;margin:34px 0}
.exp b{font-family:var(--serif);font-size:18px}
.exp p{margin:6px 0 0;font-size:15.5px;color:#5b4a12}
/* Factura de ejemplo */
.invoice{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;font-size:14.5px;box-shadow:var(--shadow)}
.invoice .inv-top{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-bottom:2px solid var(--ink);padding-bottom:14px;margin-bottom:14px}
.invoice .inv-title{font-family:var(--serif);font-size:28px;font-weight:600}
.invoice .tot{margin-left:auto;max-width:300px}
.invoice .tot div{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px dashed var(--line)}
.invoice .tot .grand{font-weight:700;font-size:17px;border-bottom:0;border-top:2px solid var(--ink);padding-top:8px}
.inv-tag{display:inline-block;background:var(--coral-soft);color:#a3401f;border-radius:6px;padding:0 6px;font-size:11.5px;font-weight:700;margin-left:6px;vertical-align:middle}
.cards-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:1000px){.cards-4{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.cards-4{grid-template-columns:1fr}}
.exp{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--green-2);border-radius:14px;padding:18px 22px;margin:34px 0}
.exp b{display:block;font-family:var(--serif);font-size:20px;margin:6px 0 4px;color:var(--ink)}
.exp p{margin:0 0 8px;font-size:16px;color:#2c3a33}
.exp small{color:var(--ink-3);font-size:13px}
.exp-tag{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--green)}
.cards-5{grid-template-columns:repeat(5,1fr)}
@media (max-width:1100px){.cards-5{grid-template-columns:repeat(3,1fr)}}
@media (max-width:700px){.cards-5{grid-template-columns:1fr}}