/* CalculaReforma — hoja de estilos compartida. Mobile-first, sin dependencias. */
:root{
  --c-bg:#f7f6f3;
  --c-surface:#ffffff;
  --c-ink:#1f2933;
  --c-ink-soft:#52606d;
  --c-brand:#b4552d;
  --c-brand-dark:#8f4020;
  --c-accent:#2d6a4f;
  --c-line:#e0ddd5;
  --c-warn-bg:#fdf3e7;
  --c-ok-bg:#eef6f1;
  --radius:10px;
  --shadow:0 1px 3px rgba(31,41,51,.08),0 4px 14px rgba(31,41,51,.06);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);background:var(--c-bg);color:var(--c-ink);line-height:1.55;font-size:1rem}
img,svg{max-width:100%;height:auto}

/* Layout */
.wrap{max-width:960px;margin:0 auto;padding:0 1rem}
main.wrap{padding-bottom:3rem}

/* Cabecera */
.site-header{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-top:.7rem;padding-bottom:.7rem}
.logo{font-weight:700;font-size:1.15rem;color:var(--c-ink);text-decoration:none;letter-spacing:-.01em}
.logo span{color:var(--c-brand)}
.site-nav{display:flex;gap:1rem;flex-wrap:wrap}
.site-nav a{color:var(--c-ink-soft);text-decoration:none;font-size:.92rem}
.site-nav a:hover{color:var(--c-brand)}

/* Migas */
.breadcrumb{font-size:.85rem;color:var(--c-ink-soft);margin:1rem 0}
.breadcrumb a{color:var(--c-ink-soft)}
.breadcrumb a:hover{color:var(--c-brand)}

h1{font-size:1.6rem;line-height:1.25;letter-spacing:-.01em;margin:.2rem 0 .4rem}
.lead{color:var(--c-ink-soft);margin:0 0 1.2rem;font-size:1.02rem}
h2{font-size:1.25rem;margin:2rem 0 .6rem}
h3{font-size:1.05rem;margin:1.4rem 0 .4rem}

/* Tarjeta de herramienta */
.tool{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.1rem;margin-bottom:1.5rem}
.tool fieldset{border:0;padding:0;margin:0 0 1rem}
.tool legend{font-weight:600;font-size:1rem;padding:0;margin-bottom:.5rem}
.grid{display:grid;gap:.8rem;grid-template-columns:1fr}
@media(min-width:560px){.grid{grid-template-columns:1fr 1fr}.grid .full{grid-column:1/-1}}
@media(min-width:820px){.grid.g3{grid-template-columns:1fr 1fr 1fr}}
.field label{display:block;font-size:.88rem;font-weight:600;margin-bottom:.25rem}
.field .hint{font-weight:400;color:var(--c-ink-soft)}
.field input,.field select{width:100%;padding:.55rem .6rem;font-size:1rem;font-family:inherit;border:1px solid var(--c-line);border-radius:6px;background:#fff;color:var(--c-ink)}
/* Las casillas no deben estirarse al ancho del campo: van junto a su texto. */
.field input[type="checkbox"]{width:auto;flex:0 0 auto;margin:0;padding:0;min-width:1.05rem;min-height:1.05rem;accent-color:var(--c-brand)}
.field label:has(input[type="checkbox"]){display:flex;align-items:center;gap:.5rem;font-weight:600;cursor:pointer}
.field input:focus,.field select:focus{outline:2px solid var(--c-brand);outline-offset:1px;border-color:var(--c-brand)}
.field input[aria-invalid="true"]{border-color:#c0392b;outline-color:#c0392b}
.field .error-msg{display:none;color:#c0392b;font-size:.82rem;margin-top:.2rem}
.field input[aria-invalid="true"]~.error-msg{display:block}
.unit-row{display:flex;gap:.5rem;align-items:center}
.unit-row input{flex:1}
.unit-row select{width:auto}

/* Filas repetibles (estancias, paños…)
   Los contenedores se rellenan por JS al cargar: se reserva su altura con
   --rows-h para que el contenido de abajo no se desplace (CLS 0). */
.rows{min-height:var(--rows-h,0)}
/* Flex en vez de rejilla fija: las filas tienen 2 o 3 campos según la herramienta
   y el botón de quitar debe quedar junto a ellos, no descolgado en otra línea. */
.rows .row-item{display:flex;flex-wrap:wrap;gap:.5rem;align-items:flex-end;margin-bottom:.6rem}
.rows .row-item>.field{flex:1 1 7rem;min-width:5.5rem}
.rows .row-item>.btn{flex:0 0 auto;align-self:flex-end;margin-bottom:.15rem}
.btn{display:inline-block;padding:.55rem 1rem;font-size:.95rem;font-weight:600;border-radius:6px;border:1px solid transparent;cursor:pointer;text-decoration:none;font-family:inherit}
.btn-primary{background:var(--c-brand);color:#fff}
.btn-primary:hover{background:var(--c-brand-dark)}
.btn-ghost{background:transparent;color:var(--c-brand);border-color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-warn-bg)}
.btn-small{padding:.3rem .6rem;font-size:.85rem}

/* Resultados */
.results{background:var(--c-ok-bg);border:1px solid #cfe3d8;border-radius:var(--radius);padding:1rem 1.1rem;margin-top:1rem}
.results[hidden]{display:none}
.results h2,.results h3{margin-top:0}
.res-big{font-size:1.7rem;font-weight:700;color:var(--c-accent);letter-spacing:-.01em}
.res-big small{font-size:1rem;font-weight:600;color:var(--c-ink-soft)}
.res-grid{display:grid;gap:.7rem;grid-template-columns:1fr 1fr;margin:.6rem 0}
@media(min-width:560px){.res-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}}
.res-item{background:#fff;border:1px solid var(--c-line);border-radius:8px;padding:.6rem .7rem}
.res-item .k{font-size:.8rem;color:var(--c-ink-soft)}
.res-item .v{font-size:1.15rem;font-weight:700}
.res-note{font-size:.88rem;color:var(--c-ink-soft);margin:.4rem 0 0}

/* Tablas */
.tbl-wrap{overflow-x:auto;margin:.8rem 0}
table.tbl{border-collapse:collapse;width:100%;font-size:.92rem;background:var(--c-surface)}
.tbl th,.tbl td{border:1px solid var(--c-line);padding:.45rem .6rem;text-align:left;vertical-align:top}
.tbl th{background:var(--c-bg);font-weight:600}
.tbl td.num,.tbl th.num{text-align:right;font-variant-numeric:tabular-nums}
.tbl tr.hl{background:var(--c-ok-bg)}

/* Lista de compra */
.shoplist{list-style:none;padding:0;margin:.6rem 0}
.shoplist li{display:flex;justify-content:space-between;gap:1rem;padding:.45rem 0;border-bottom:1px dashed var(--c-line)}
.shoplist li strong{font-variant-numeric:tabular-nums;white-space:nowrap}

/* Avisos */
.notice{background:var(--c-warn-bg);border:1px solid #ecd9bd;border-radius:8px;padding:.7rem .9rem;font-size:.9rem;margin:.8rem 0}
.share-row{display:flex;gap:.6rem;align-items:center;flex-wrap:wrap;margin-top:.8rem}
.share-row input{flex:1;min-width:200px;font-size:.85rem;padding:.4rem .5rem;border:1px solid var(--c-line);border-radius:6px;color:var(--c-ink-soft)}

/* Contenido */
.content{max-width:720px}
.content ul{padding-left:1.2rem}
.content code{background:#eee9df;padding:.1em .35em;border-radius:4px;font-size:.9em}
details.faq{border:1px solid var(--c-line);border-radius:8px;background:var(--c-surface);margin:.5rem 0;padding:.2rem .9rem}
details.faq summary{font-weight:600;cursor:pointer;padding:.5rem 0}
details.faq p{margin-top:.2rem}

/* Herramientas relacionadas */
.related{margin-top:2.5rem}
.card-grid{display:grid;gap:.8rem;grid-template-columns:1fr;padding:0;list-style:none}
@media(min-width:560px){.card-grid{grid-template-columns:1fr 1fr}}
@media(min-width:820px){.card-grid{grid-template-columns:1fr 1fr 1fr}}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);padding:.9rem 1rem;display:block;text-decoration:none;color:var(--c-ink);transition:border-color .15s}
.card:hover{border-color:var(--c-brand)}
.card strong{display:block;margin-bottom:.2rem;color:var(--c-brand-dark)}
.card span{font-size:.88rem;color:var(--c-ink-soft)}

/* Directorio del índice */
.dir-section{margin:2rem 0}

/* Pie */
.site-footer{border-top:1px solid var(--c-line);background:var(--c-surface);margin-top:3rem;font-size:.88rem;color:var(--c-ink-soft)}
.site-footer .wrap{padding-top:1.4rem;padding-bottom:1.6rem}
.site-footer nav{display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;margin-bottom:.8rem}
.site-footer a{color:var(--c-ink-soft)}
.site-footer a:hover{color:var(--c-brand)}

/* Bloques de monetización (vacíos hasta activarse) */
.ad-slot:empty,.aff-slot:empty,.lead-slot:empty{display:none}

/* Accesibilidad */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}