/* ═══════════════════════════════════════════════════════════════
   Hachi — páginas internas (guías, calculadora, FAQ, legales)
   Mismo sistema de diseño que assets/landing.css:
   oscuro, sobrio, un solo acento, tipografía Inter.
   ═══════════════════════════════════════════════════════════════ */

@font-face {
    font-family: 'Inter';
    src: url('/assets/fonts/Inter-Regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    src: url('/assets/fonts/Inter-Medium.woff2') format('woff2');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    src: url('/assets/fonts/Inter-SemiBold.woff2') format('woff2');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    src: url('/assets/fonts/Inter-Bold.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

:root {
    --violeta: #8B5CF6;
    --violeta-osc: #7C3AED;
    --cian: #06B6D4;
    --verde: #34D399;
    --ambar: #F59E0B;
    --rojo: #EF4444;
    --fondo: #0a0a0f;
    --panel: #12121a;
    --panel2: #17171f;
    --borde: rgba(255, 255, 255, 0.08);
    --borde-fuerte: rgba(255, 255, 255, 0.14);
    --texto: #E5E7EB;
    --tenue: #9CA3AF;
    --gradiente: linear-gradient(135deg, #8B5CF6 0%, #06B6D4 100%);
    --fuente: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--fuente);
    background: var(--fondo);
    color: var(--texto);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(139, 92, 246, 0.4); }

a { color: var(--cian); text-decoration: none; }
a:hover { text-decoration: underline; }

strong { color: #fff; font-weight: 600; }

.envoltorio { max-width: 800px; margin: 0 auto; padding: 0 20px; }
.pagina-calc .envoltorio { max-width: 1080px; }
.pagina-faq .envoltorio { max-width: 920px; }

/* ═══════════════ Nav superior ═══════════════ */
.nav {
    border-bottom: 1px solid var(--borde);
    padding: 0.85rem 0;
    position: sticky;
    top: 0;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 20;
}

.nav .envoltorio {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    max-width: 1000px;
}

.pagina-calc .nav .envoltorio { max-width: 1080px; }
.pagina-faq .nav .envoltorio { max-width: 920px; }

.nav a {
    color: var(--tenue);
    font-size: 0.92rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav a:hover { color: var(--texto); text-decoration: none; }

.marca {
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: -0.02em;
    color: #fff !important;
}

.marca span { color: var(--violeta); }

/* ═══════════════ Cabeceras de página ═══════════════ */
.migas { font-size: 0.82rem; color: var(--tenue); padding: 18px 0 0; }
.migas a { color: var(--tenue); }

header.hero { padding: 56px 0 32px; text-align: center; }
header.cabecera { padding: 22px 0 8px; }
.pagina-faq header.hero { padding: 26px 0 26px; text-align: left; }

h1 {
    font-size: 2.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.22;
    margin-bottom: 16px;
    color: #fff;
}

h1 em { font-style: normal; color: var(--violeta); }

.entradilla { color: var(--tenue); font-size: 1.08rem; line-height: 1.65; }
header.hero .entradilla { max-width: 720px; margin: 0 auto; }
.pagina-faq .entradilla { max-width: 680px; font-size: 1.05rem; }

.meta { font-size: 0.8rem; color: var(--tenue); margin-top: 16px; opacity: 0.8; }

/* ═══════════════ Estructura de artículo ═══════════════ */
.sumario {
    background: var(--panel);
    border: 1px solid var(--borde);
    border-radius: 14px;
    padding: 18px 22px;
    margin: 30px 0 8px;
}

.sumario h2 {
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--tenue);
    margin-bottom: 10px;
    font-weight: 600;
    border: none;
    padding: 0;
}

.sumario ol { margin-left: 20px; }
.sumario li { margin-bottom: 4px; font-size: 0.93rem; }

section.bloque { margin-top: 44px; scroll-margin-top: 90px; }

h2 { font-size: 1.55rem; font-weight: 700; letter-spacing: -0.01em; color: #fff; line-height: 1.3; }

section.bloque > h2,
.faq > h2,
.bloque h2 {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--borde);
}

h3 { font-size: 1.13rem; font-weight: 600; color: #fff; margin: 26px 0 10px; }

p { margin-bottom: 14px; }
ul, ol { margin: 0 0 14px 24px; }
li { margin-bottom: 8px; }

blockquote {
    border-left: 3px solid var(--violeta);
    padding: 4px 0 4px 18px;
    margin: 20px 0;
    color: var(--texto);
    font-size: 1.05rem;
}

/* Cajas destacadas */
.destacado,
.aviso {
    background: var(--panel);
    border: 1px solid var(--borde);
    border-left: 3px solid var(--cian);
    border-radius: 10px;
    padding: 18px 20px;
    margin: 22px 0;
    font-size: 0.95rem;
    color: var(--tenue);
}

.destacado strong, .aviso strong { color: var(--texto); }
.destacado.aviso { border-left-color: var(--ambar); }
.destacado.bien { border-left-color: var(--verde); }
.destacado p:last-child, .destacado ul:last-child, .destacado ol:last-child,
.aviso p:last-child { margin-bottom: 0; }

/* ═══════════════ Tablas ═══════════════ */
.tabla { overflow-x: auto; margin: 22px 0; border: 1px solid var(--borde); border-radius: 12px; }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }

th, td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--borde);
    vertical-align: top;
}

thead th {
    background: var(--panel2);
    color: var(--tenue);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

tbody tr:last-child td { border-bottom: none; }
td.si { color: var(--verde); }
td.no { color: var(--rojo); }
tr.destacada td { background: rgba(139, 92, 246, 0.09); }
tr.destacada td:first-child { color: #fff; font-weight: 600; }

/* ═══════════════ FAQ dentro de guías ═══════════════ */
.faq { margin-top: 44px; }
.faq article { margin-bottom: 22px; scroll-margin-top: 90px; }
.faq h3 { font-size: 1.06rem; margin: 0 0 6px; }
.faq .r { color: var(--tenue); font-size: 0.96rem; }
.faq .r p { margin-bottom: 10px; }

/* ═══════════════ Relacionadas ═══════════════ */
.relacionadas { margin: 46px 0 0; }
.relacionadas h2 { font-size: 1.2rem; margin-bottom: 14px; border: none; padding: 0; }
.relacionadas div { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }

.relacionadas a {
    display: block;
    padding: 15px 17px;
    background: var(--panel);
    border: 1px solid var(--borde);
    border-radius: 12px;
    color: var(--texto);
    font-size: 0.93rem;
    transition: border-color 0.2s ease;
}

.relacionadas a:hover { border-color: rgba(139, 92, 246, 0.35); text-decoration: none; }
.relacionadas a b { display: block; color: #fff; margin-bottom: 3px; font-size: 0.97rem; }
.relacionadas a span { color: var(--tenue); font-size: 0.86rem; }

/* ═══════════════ CTA y botones ═══════════════ */
.cta {
    text-align: center;
    padding: 40px 22px 44px;
    margin: 46px 0 50px;
    background: var(--panel);
    border: 1px solid var(--borde);
    border-radius: 20px;
}

.pagina-calc .cta { padding: 40px 0 60px; margin: 0; background: none; border: none; }

.cta h2 { font-size: 1.4rem; margin-bottom: 8px; border: none; padding: 0; }
.cta p { color: var(--tenue); max-width: 520px; margin: 0 auto 20px; font-size: 0.97rem; }

.boton {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.95rem 2.1rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 1rem;
    background: var(--gradiente);
    color: #fff;
    transition: filter 0.2s ease, transform 0.2s ease;
}

.boton:hover { text-decoration: none; filter: brightness(1.12); transform: translateY(-2px); }

.boton.sec {
    background: transparent;
    border: 1px solid var(--borde-fuerte);
    color: var(--texto);
    margin-left: 10px;
}

.boton.sec:hover { border-color: rgba(139, 92, 246, 0.35); background: rgba(139, 92, 246, 0.12); filter: none; }

/* ═══════════════ Footer ═══════════════ */
footer {
    border-top: 1px solid var(--borde);
    padding: 26px 0;
    color: var(--tenue);
    font-size: 0.87rem;
    text-align: center;
}

footer a { color: var(--tenue); }
footer a:hover { color: var(--texto); }

/* ═══════════════ Calculadora ═══════════════ */
.tarjeta {
    background: var(--panel);
    border: 1px solid var(--borde);
    border-radius: 16px;
    padding: 26px;
    margin-bottom: 26px;
}

.tarjeta h2 { font-size: 1.45rem; margin-bottom: 6px; display: flex; align-items: center; gap: 10px; border: none; padding: 0; }
.tarjeta .sub { color: var(--tenue); font-size: 0.95rem; margin-bottom: 22px; }

.campos { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.campo label { display: block; font-size: 0.87rem; color: var(--tenue); margin-bottom: 6px; }
.campo label b { color: var(--texto); font-weight: 600; }

.campo input[type=number] {
    width: 100%;
    padding: 10px 12px;
    background: var(--panel2);
    border: 1px solid var(--borde-fuerte);
    border-radius: 8px;
    color: var(--texto);
    font-size: 1rem;
    font-family: inherit;
}

.campo input[type=number]:focus { outline: 2px solid var(--violeta); outline-offset: 1px; }
.campo input[type=range] { width: 100%; accent-color: var(--violeta); margin-top: 4px; }
.rango { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--tenue); margin-top: 2px; }
.supuesto label b::after { content: " · assumption"; color: var(--ambar); font-weight: 400; font-size: 0.8rem; }
.pagina-calc[lang=es] .supuesto label b::after,
html[lang=es] .supuesto label b::after { content: " · supuesto"; }

.operacion {
    margin-top: 24px;
    background: var(--panel2);
    border: 1px solid var(--borde);
    border-radius: 10px;
    overflow-x: auto;
}

.operacion table { font-size: 0.92rem; }
.operacion td { padding: 9px 14px; border-bottom: 1px solid var(--borde); }
.operacion tr:last-child td { border-bottom: none; }
.operacion td:nth-child(2) { color: var(--tenue); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.85rem; }
.operacion td:nth-child(3) { text-align: right; font-weight: 600; white-space: nowrap; }
.operacion tr.total td { background: rgba(139, 92, 246, 0.1); font-size: 1rem; }
.operacion tr.total td:nth-child(3) { color: var(--verde); font-size: 1.15rem; }
.operacion tr.total.malo td:nth-child(3) { color: var(--rojo); }

.titular { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 22px; }
.dato { flex: 1; min-width: 150px; background: var(--panel2); border: 1px solid var(--borde); border-radius: 10px; padding: 16px; }
.dato .k { font-size: 0.78rem; color: var(--tenue); text-transform: uppercase; letter-spacing: 0.04em; }
.dato .v { font-size: 1.7rem; font-weight: 700; color: #fff; margin-top: 4px; }
.dato .v.verde { color: var(--verde); }
.dato .v.rojo { color: var(--rojo); }
.dato .n { font-size: 0.8rem; color: var(--tenue); margin-top: 2px; }

.veredicto { margin-top: 20px; padding: 16px 18px; border-radius: 10px; font-size: 0.95rem; }
.veredicto.ok { background: rgba(52, 211, 153, 0.1); border: 1px solid rgba(52, 211, 153, 0.35); }
.veredicto.no { background: rgba(245, 158, 11, 0.1); border: 1px solid rgba(245, 158, 11, 0.4); }
.veredicto b { color: #fff; }

select {
    padding: 10px 12px;
    background: var(--panel2);
    border: 1px solid var(--borde-fuerte);
    border-radius: 8px;
    color: var(--texto);
    font-size: 1rem;
    font-family: inherit;
}

select option { background: var(--panel); color: var(--texto); }

table.simple { margin-top: 14px; }
table.simple th, table.simple td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--borde); }
table.simple th { color: var(--tenue); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
table.simple td:not(:first-child) { text-align: right; }

details {
    background: var(--panel);
    border: 1px solid var(--borde);
    border-radius: 12px;
    padding: 18px 22px;
    margin-bottom: 26px;
}

details summary { cursor: pointer; font-weight: 600; color: #fff; font-size: 1.05rem; }
details[open] summary { margin-bottom: 14px; }
details h3 { font-size: 1rem; color: #fff; margin: 18px 0 8px; }
details p, details li { color: var(--tenue); font-size: 0.93rem; }
details ul { margin-left: 20px; margin-top: 6px; }

details code {
    background: var(--panel2);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.85rem;
    color: var(--cian);
}

/* ═══════════════ Página de preguntas (buscador e índice) ═══════════════ */
.buscador { position: relative; margin: 22px 0 6px; }

.buscador input {
    width: 100%;
    padding: 13px 16px 13px 44px;
    background: var(--panel);
    border: 1px solid var(--borde-fuerte);
    border-radius: 12px;
    color: var(--texto);
    font-size: 1rem;
    font-family: inherit;
}

.buscador input:focus { outline: 2px solid var(--violeta); outline-offset: 1px; }

.buscador::before {
    content: "";
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    opacity: 0.55;
    background: no-repeat center / contain
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%239CA3AF' d='M416 208c0 45.9-14.9 88.3-40 122.7L502.6 457.4c12.5 12.5 12.5 32.8 0 45.3s-32.8 12.5-45.3 0L330.7 376c-34.4 25.2-76.8 40-122.7 40C93.1 416 0 322.9 0 208S93.1 0 208 0S416 93.1 416 208zM208 352a144 144 0 1 0 0-288 144 144 0 1 0 0 288z'/%3E%3C/svg%3E");
}

.contador { font-size: 0.83rem; color: var(--tenue); min-height: 20px; margin-bottom: 20px; }

.indice {
    background: var(--panel);
    border: 1px solid var(--borde);
    border-radius: 14px;
    padding: 18px 20px;
    margin-bottom: 34px;
}

.indice h2 {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--tenue);
    margin-bottom: 12px;
    font-weight: 600;
    border: none;
    padding: 0;
}

.indice div { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 4px; }

.indice a {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 7px 9px;
    border-radius: 8px;
    color: var(--texto);
    font-size: 0.92rem;
}

.indice a:hover { background: var(--panel2); text-decoration: none; }

.indice a em {
    margin-left: auto;
    font-style: normal;
    font-size: 0.76rem;
    color: var(--tenue);
    background: var(--panel2);
    border-radius: 20px;
    padding: 1px 8px;
}

.pagina-faq .bloque { margin-bottom: 46px; scroll-margin-top: 90px; }
.bloque .intro { color: var(--tenue); font-size: 0.95rem; margin: 12px 0 24px; }

.pregunta { margin-bottom: 26px; scroll-margin-top: 90px; }
.pregunta h3 { font-size: 1.1rem; color: #fff; margin-bottom: 8px; line-height: 1.4; }

.pregunta h3 .ancla {
    opacity: 0;
    margin-left: 8px;
    color: var(--violeta);
    font-weight: 400;
    transition: opacity 0.15s;
}

.pregunta:hover h3 .ancla, .pregunta h3 .ancla:focus { opacity: 1; }
.pregunta:target h3 { color: var(--cian); }

.respuesta { color: var(--tenue); font-size: 0.97rem; }
.respuesta p + p, .respuesta ul, .respuesta ol { margin-top: 11px; }
.respuesta ul, .respuesta ol { margin-left: 22px; }
.respuesta li { margin-bottom: 6px; }
.respuesta strong { color: var(--texto); }

.sinresultados { display: none; padding: 34px 0; text-align: center; color: var(--tenue); }
.sinresultados.visible { display: block; }

/* ═══════════════ Páginas legales ═══════════════ */
body.pagina-legal { padding: 2rem; line-height: 1.8; }

.pagina-legal .container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--panel);
    border-radius: 20px;
    padding: 3rem;
    border: 1px solid var(--borde);
}

.pagina-legal h1 { font-size: 2.3rem; margin-bottom: 0.5rem; }

.pagina-legal .last-updated { color: var(--tenue); margin-bottom: 2rem; font-size: 0.9rem; }

.pagina-legal h2 {
    color: #fff;
    font-size: 1.4rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--borde);
}

.pagina-legal h3 { color: var(--violeta); font-size: 1.15rem; margin-top: 1.5rem; margin-bottom: 0.8rem; }
.pagina-legal p { margin-bottom: 1rem; }
.pagina-legal ul, .pagina-legal ol { margin-left: 1.5rem; margin-bottom: 1rem; }
.pagina-legal li { margin-bottom: 0.5rem; }
.pagina-legal a { color: var(--violeta); }
.pagina-legal a:hover { color: var(--cian); }

.pagina-legal .highlight {
    background: rgba(139, 92, 246, 0.1);
    padding: 1rem 1.25rem;
    border-radius: 10px;
    border-left: 3px solid var(--violeta);
    margin: 1rem 0;
}

.pagina-legal .contact-info {
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.2);
    padding: 1.5rem;
    border-radius: 10px;
    margin-top: 2rem;
}

.pagina-legal .contact-info h3 { margin-top: 0; color: var(--cian); }

.pagina-legal .step-box {
    background: var(--panel2);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid var(--borde);
    margin: 1.5rem 0;
}

.pagina-legal .step-number {
    display: inline-block;
    background: var(--gradiente);
    color: #fff;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    text-align: center;
    line-height: 30px;
    font-weight: 700;
    margin-right: 10px;
}

/* ═══════════════ Responsive ═══════════════ */
@media (max-width: 768px) {
    body.pagina-legal { padding: 1rem; }
    .pagina-legal .container { padding: 1.5rem; }
    .pagina-legal h1 { font-size: 1.8rem; }
}

@media (max-width: 640px) {
    h1 { font-size: 1.62rem; }
    h2 { font-size: 1.3rem; }
    .tarjeta { padding: 20px 16px; }
    .operacion td:nth-child(2) { display: none; }
    .indice div { grid-template-columns: 1fr; }
    .boton.sec { margin-left: 0; margin-top: 10px; }
}