/* ============================================================
   DISC-NEO — Editorial stylesheet
   Paleta: fondo cálido / tinta / plomo
   Tipografía: Satoshi para titulares, lectura e interfaz
   ============================================================ */


/* ----------------------------------------
   0. FUENTES LOCALES
   Archivos esperados:
   /fonts/satoshi/Satoshi-Regular.woff2
   /fonts/satoshi/Satoshi-Medium.woff2
   /fonts/satoshi/Satoshi-Bold.woff2
   ---------------------------------------- */
@font-face {
    font-family: 'Satoshi';
    src: url('/fonts/satoshi/Satoshi-Regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

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

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



/* ----------------------------------------
   1. TOKENS
   ---------------------------------------- */
:root {
    /* Paleta editorial */
    --paper:        #f7f7f2;            /* fondo principal — marfil suave */
    --paper-warm:   #f2f2ec;            /* fondo alternativo — cálido */
    --surface:      #ffffff;            /* tarjetas y campos */
    --ink:          #11110f;            /* tinta — texto principal */
    --ink-soft:     #2a2a27;            /* tinta atenuada — subtítulos */
    --lead:         #5e5e58;            /* plomo medio — texto secundario */
    --lead-soft:    #8c8c84;            /* plomo claro — meta info */
    --rule:         #d8d8d0;            /* línea editorial — hairlines */
    --rule-soft:    #e8e8df;            /* línea muy tenue */

    /* Compatibilidad con código existente */
    --bg-soft:          var(--paper);   /* anula fondos alternos: todo papel */
    --accent-primary:   var(--ink);     /* acentos en tinta, no en color */

    /* Tipografía */
    --font-sans:    'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-display: 'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --tracking-tight:   -0.02em;
    --tracking-base:    0;
    --tracking-wide:    0.08em;
    --tracking-wider:   0.16em;

    /* Ritmo */
    --measure:      72ch;               /* ancho de lectura ideal */
    --section-py:   6rem;               /* padding vertical de secciones */
}

@media (max-width: 768px) {
    :root {
        --section-py: 4rem;
    }
}




/* ----------------------------------------
   1B. LOGO DISC-NEO
   ---------------------------------------- */
.logo-discneo {
    display: inline-flex;
    align-items: baseline;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.35rem;
    line-height: 1;
    letter-spacing: -0.035em;
    text-decoration: none;
    white-space: nowrap;
}

.logo-discneo:hover,
.logo-discneo:focus {
    text-decoration: none;
}

.logo-discneo .logo-d {
    color: #C0392B;
}

.logo-discneo .logo-i {
    color: #D4A017;
}

.logo-discneo .logo-s {
    color: #2E8B57;
}

.logo-discneo .logo-c {
    color: #2F6DB3;
}

.logo-discneo .logo-hyphen,
.logo-discneo .logo-neo,
.logo-discneo .logo-tm {
    color: #303947;
}

.logo-discneo .logo-tm {
    font-family: var(--font-sans);
    font-size: 0.42em;
    font-weight: 700;
    margin-left: 2px;
    position: relative;
    top: -0.55em;
    letter-spacing: 0;
}


/* ----------------------------------------
   2. BASE
   ---------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    background-color: var(--paper);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 1.0625rem;               /* 17px — escala editorial */
    line-height: 1.6;
    font-weight: 400;
    letter-spacing: var(--tracking-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

p {
    margin: 0 0 1.25em 0;
    max-width: var(--measure);
}

p:last-child {
    margin-bottom: 0;
}

a {
    color: var(--ink);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    text-decoration-color: var(--rule);
    transition: text-decoration-color 0.15s ease;
}

a:hover {
    color: var(--ink);
    text-decoration-color: var(--ink);
}

strong, b {
    font-weight: 700;
    color: var(--ink);
}

em, i {
    font-style: italic;
}

::selection {
    background: var(--ink);
    color: var(--paper);
}


/* ----------------------------------------
   3. TIPOGRAFÍA EDITORIAL
   ---------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    color: var(--ink);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: var(--tracking-tight);
    margin: 0 0 0.75em 0;
    text-wrap: balance;                 /* mejor partición de líneas en navegadores modernos */
}

h1 {
    font-size: clamp(2.25rem, 4.5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.08;
}

h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    line-height: 1.15;
}

h3 {
    font-size: clamp(1.25rem, 1.8vw, 1.5rem);
    font-weight: 700;
}

h3.h4 {
    font-size: 1.25rem;
    font-weight: 700;
}

h3.h5, h4.h5 {
    font-size: 1.0625rem;
    font-weight: 700;
}

/* Lead paragraph — primer párrafo grande de sección, estilo editorial */
.lead {
    font-size: 1.25rem;
    line-height: 1.5;
    font-weight: 400;
    color: var(--ink-soft);
    letter-spacing: -0.005em;
    max-width: var(--measure);
}

.light {
    color: var(--lead);
}

.gray-color {
    color: var(--lead) !important;
}

.smaller, .small {
    font-size: 0.875rem;
    line-height: 1.5;
}


/* ----------------------------------------
   4. ESTRUCTURA — secciones como capítulos
   ---------------------------------------- */
.main {
    background-color: var(--paper);
}

section {
    background-color: var(--paper) !important;     /* anula fondos soft inline del Index */
    padding-top: var(--section-py);
    padding-bottom: var(--section-py);
    position: relative;
}

/* Separador editorial entre secciones: hairline horizontal,
   contenida en el ancho de contenido (no full-width) */
section + section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(1160px, calc(100% - 3rem));
    height: 1px;
    background-color: var(--rule);
}

/* El hero no necesita padding-top tan grande */
section[aria-labelledby="hero-title"] {
    padding-top: calc(var(--section-py) * 0.75);
}


/* ----------------------------------------
   5. BOTONES — estilo pill moderno
   ---------------------------------------- */

/* Botón principal: cápsula negra, limpia y con mayor presencia táctil */
.btn-color-principal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    background-color: var(--ink);
    color: var(--paper);
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.9375rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 1rem 1.8rem;
    min-height: 3.5rem;
    border: 1px solid var(--ink);
    border-radius: 999px;
    text-decoration: none;
    cursor: pointer;
    box-shadow: none;
    transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.btn-color-principal:hover,
.btn-color-principal:focus {
    background-color: #1f1f1c;
    color: var(--paper);
    border-color: #1f1f1c;
    text-decoration: none;
    transform: translateY(-1px);
}

.btn-color-principal:active {
    transform: translateY(0);
}

.btn-color-principal.full {
    display: flex;
    width: 100%;
    text-align: center;
}

/* Botón secundario: cápsula clara sobre fondo cálido */
.btn-outline-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    background-color: var(--paper-warm);
    color: var(--ink) !important;
    border: 1px solid var(--rule-soft) !important;
    border-radius: 999px;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.9375rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 1rem 1.8rem;
    min-height: 3.5rem;
    text-decoration: none;
    box-shadow: none;
    transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
    background-color: var(--ink) !important;
    color: var(--paper) !important;
    border-color: var(--ink) !important;
    text-decoration: none;
    transform: translateY(-1px);
}

.btn-outline-secondary:active {
    transform: translateY(0);
}

.btn-lg {
    font-size: 0.9375rem;
    padding: 1.05rem 2rem;
}

/* ----------------------------------------
   6. CARD DEL FORMULARIO — sin elevación
   ---------------------------------------- */
.card {
    background-color: var(--surface);
    border: 1px solid var(--rule);
    border-radius: 0;
    box-shadow: none;
}

.card-body {
    padding: 2rem;
}

@media (min-width: 768px) {
    .card-body {
        padding: 2.5rem;
    }
}

.card .card-body h2 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0;
    margin-bottom: 1rem;
}


/* ----------------------------------------
   7. FORMULARIO — minimalismo editorial
   ---------------------------------------- */
.form-floating {
    position: relative;
}

.form-control {
    background-color: var(--surface);
    color: var(--ink);
    border: 1px solid var(--rule);
    border-radius: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    padding: 1rem 0.875rem;
    box-shadow: none;
    transition: border-color 0.15s ease;
}

.form-control:focus {
    background-color: var(--surface);
    color: var(--ink);
    border-color: var(--ink);
    box-shadow: none;
    outline: 0;
}

.form-control::placeholder {
    color: var(--lead-soft);
}

.form-floating > label {
    color: var(--lead);
    font-family: var(--font-sans);
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    color: var(--lead);
    transform: scale(0.85) translateY(-0.6rem) translateX(0.15rem);
}

.form-check {
    padding-left: 1.75rem;
}

.form-check-input {
    background-color: var(--surface);
    border: 1px solid var(--rule);
    border-radius: 0;
    width: 1rem;
    height: 1rem;
    margin-left: -1.75rem;
    margin-top: 0.3rem;
    box-shadow: none;
    cursor: pointer;
}

.form-check-input:focus {
    border-color: var(--ink);
    box-shadow: none;
    outline: 0;
}

.form-check-input:checked {
    background-color: var(--ink);
    border-color: var(--ink);
}

.form-check-label {
    color: var(--lead);
    font-size: 0.8125rem;
    line-height: 1.5;
    cursor: pointer;
}

/* Estados de validación Parsley */
.is-invalid {
    border-color: var(--ink) !important;
}

.invalid-feedback {
    color: var(--ink);
    font-size: 0.8125rem;
    font-style: italic;
    margin-top: 0.5rem;
}


/* ----------------------------------------
   8. ACCORDION (FAQ) — editorial
   ---------------------------------------- */
.accordion {
    border-top: 1px solid var(--rule);
}

.accordion-item {
    background-color: var(--paper);
    border: 0;
    border-bottom: 1px solid var(--rule);
}

.accordion-button {
    background-color: var(--paper);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 1.0625rem;
    font-weight: 500;
    padding: 1.5rem 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.accordion-button:not(.collapsed) {
    background-color: var(--paper);
    color: var(--ink);
    box-shadow: none;
}

.accordion-button:focus {
    border: 0;
    box-shadow: none;
    outline: 0;
}

/* Icono custom — chevron simple en tinta */
.accordion-button::after {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%230e0e0e' stroke-width='1.5' viewBox='0 0 16 16'%3E%3Cpath d='M3 6l5 5 5-5'/%3E%3C/svg%3E");
    width: 16px;
    height: 16px;
    background-size: 16px;
    transition: transform 0.2s ease;
}

.accordion-body {
    background-color: var(--paper);
    color: var(--lead);
    padding: 0 0 1.5rem 0;
    font-size: 1rem;
    line-height: 1.65;
}

.accordion-body strong {
    color: var(--ink);
}


/* ----------------------------------------
   9. LISTAS — sin viñetas Bootstrap, ritmo editorial
   ---------------------------------------- */
ul, ol {
    padding-left: 0;
}

ul.list-unstyled,
ol.list-unstyled {
    list-style: none;
    padding: 0;
}

/* Marca '✓' del hero: en tinta, no en color de acento */
.list-unstyled li span[aria-hidden="true"] {
    color: var(--ink) !important;
    font-weight: 500;
}


/* ----------------------------------------
   10. ELEMENTOS EDITORIALES ESPECÍFICOS
   ---------------------------------------- */

/* Eyebrows: uppercase + tracking ancho — sello editorial */
section .text-uppercase.small.fw-semibold,
section p.text-uppercase {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: var(--tracking-wider) !important;
    color: var(--lead) !important;
    text-transform: uppercase;
}

/* Borde superior usado en sección de autor */
.border-top {
    border-top: 1px solid var(--rule) !important;
}

/* Tarjeta de autor — sin tarjeta visible, solo tipografía */
.border-top a:hover {
    text-decoration: none;
}

.border-top a:hover .fw-semibold {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
    text-decoration-color: var(--ink);
}


/* ----------------------------------------
   11. NUMERACIÓN DE PASOS — números editoriales
   Aplica a la sección "Cómo funciona" (los 3 pasos)
   ---------------------------------------- */
ol.list-unstyled.row li h3 {
    position: relative;
    padding-top: 0.5rem;
}

ol.list-unstyled.row li h3::before {
    content: "";
    display: block;
    width: 2rem;
    height: 1px;
    background-color: var(--ink);
    margin-bottom: 1rem;
}


/* ----------------------------------------
   12. REFERENCIAS BIBLIOGRÁFICAS — editorial
   ---------------------------------------- */
.gray-color ul li {
    font-style: normal;
    font-size: 0.8125rem;
    line-height: 1.55;
    color: var(--lead);
    margin-bottom: 0.5rem;
    padding-left: 1rem;
    text-indent: -1rem;
}

.gray-color ul li em {
    font-style: italic;
}


/* ----------------------------------------
   13. UTILIDADES — anclas para skip-to-form
   ---------------------------------------- */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 2rem;
}


/* ----------------------------------------
   14. RESPONSIVE — ajustes finos en móvil
   ---------------------------------------- */
@media (max-width: 768px) {
    body {
        font-size: 1rem;
    }

    .lead {
        font-size: 1.0625rem;
    }

    .card-body {
        padding: 1.5rem;
    }

    .btn-color-principal,
    .btn-outline-secondary {
        padding: 0.9rem 1.5rem;
        font-size: 0.875rem;
    }

    /* En móvil los separadores entre secciones siguen funcionando bien */
    section + section::before {
        width: calc(100% - 2rem);
    }
}


/* ----------------------------------------
   15. PRINT — si alguien imprime la página
   ---------------------------------------- */
@media print {
    section {
        page-break-inside: avoid;
        padding: 2rem 0;
    }

    .btn-color-principal,
    .btn-outline-secondary,
    .card {
        border: 1px solid var(--ink);
        background: transparent !important;
        color: var(--ink) !important;
    }

    a {
        color: var(--ink);
        text-decoration: underline;
    }
}

/* ----------------------------------------
   16. BARRA SUPERIOR / LOGO
   ---------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(247, 247, 242, 0.94);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(48, 57, 71, 0.08);
}

.site-navbar {
    min-height: 76px;
    padding-top: 0.85rem;
    padding-bottom: 0.85rem;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    padding: 0;
    margin: 0;
    text-decoration: none;
}

.site-brand:hover,
.site-brand:focus {
    text-decoration: none;
}

.site-brand-logo {
    display: block;
    width: 180px;
    height: auto;
}

@media (max-width: 768px) {
    .site-navbar {
        min-height: 68px;
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
    }

    .site-brand-logo {
        width: 150px;
    }
}

@media print {
    .site-header {
        position: static;
        border-bottom: 1px solid var(--rule);
        background: transparent;
    }
}