/* =========================================================================
   Recepción24 — site.css
   Tokens → base → layout → components → utilities.
   ========================================================================= */

:root {
    /* Brand & surface colours — blue-led + warm accent */
    --c-ink: #0F172A;
    --c-charcoal: #1E293B;
    --c-blue: #2563EB;
    --c-blue-dark: #1D4ED8;
    --c-blue-soft: #EFF4FF;
    --c-accent: #F97316;        /* warm accent — highlights, the "24" */
    --c-accent-cta: #EA580C;    /* warm CTA button (AA-large on white) */
    --c-accent-cta-dark: #C2410C;
    --c-wa: #25D366;            /* WhatsApp green */
    --c-wa-dark: #1EAE54;
    --c-bg: #FFFFFF;
    --c-bg-alt: #F8FAFC;
    --c-border: #E2E8F0;
    --c-muted: #64748B;
    --c-success: #16A34A;
    --c-error: #DC2626;

    /* Spacing — 8pt grid */
    --s-1: 8px; --s-2: 16px; --s-3: 24px; --s-4: 32px;
    --s-6: 48px; --s-8: 64px; --s-12: 96px; --s-16: 128px;

    /* Typography */
    --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    --t-display: 3.25rem;
    --t-h1: 2.5rem;
    --t-h2: 2rem;
    --t-h3: 1.25rem;
    --t-body: 1.0625rem;
    --t-small: 0.875rem;

    --lh-display: 1.08;
    --lh-h1: 1.15;
    --lh-h2: 1.2;
    --lh-h3: 1.35;
    --lh-body: 1.6;

    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;

    --shadow-card: 0 1px 2px rgba(15,23,42,0.04);
    --shadow-card-hover: 0 8px 28px rgba(15,23,42,0.10);
    --shadow-float: 0 20px 50px rgba(37,99,235,0.16);

    --container-max: 1160px;
    --reading-max: 720px;
}

/* ----- Reset / base ----- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    margin: 0;
    background: var(--c-bg);
    color: var(--c-ink);
    font-family: var(--font-sans);
    font-size: var(--t-body);
    line-height: var(--lh-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: var(--c-blue); text-decoration: none; }
a:hover { color: var(--c-blue-dark); text-decoration: underline; }

h1, h2, h3, h4 { color: var(--c-ink); font-weight: 800; margin: 0 0 var(--s-2); letter-spacing: -0.02em; }
h1 { font-size: var(--t-h1); line-height: var(--lh-h1); }
h2 { font-size: var(--t-h2); line-height: var(--lh-h2); }
h3 { font-size: var(--t-h3); line-height: var(--lh-h3); font-weight: 700; }

p { margin: 0 0 var(--s-2); }
ul, ol { margin: 0 0 var(--s-2); padding-left: var(--s-3); }
li { margin-bottom: var(--s-1); }

.icon { display: inline-flex; align-items: center; justify-content: center; }
.icon svg { display: block; }

/* Skip link + focus */
.skip-link { position: absolute; top: -40px; left: 0; background: var(--c-ink); color: #fff; padding: var(--s-1) var(--s-2); z-index: 1000; }
.skip-link:focus { top: 0; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible {
    outline: 2px solid var(--c-blue); outline-offset: 2px; border-radius: 4px;
}
h1, h2, h3, h4 { outline: none !important; }

/* ----- Layout primitives ----- */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--s-3); }
.container--narrow { max-width: var(--reading-max); }

.section { padding: var(--s-12) 0; }
.section--alt { background: var(--c-bg-alt); }
.section--blue { background: var(--c-blue-soft); }
.section--charcoal { background: var(--c-charcoal); color: #fff; }
.section--charcoal h1, .section--charcoal h2, .section--charcoal h3 { color: #fff; }

.section__head { max-width: var(--reading-max); }
.section__head.text-center { margin-inline: auto; }

.lead { font-size: 1.2rem; line-height: 1.55; color: var(--c-charcoal); max-width: var(--reading-max); }
.section--charcoal .lead { color: rgba(255,255,255,0.85); }

.eyebrow {
    display: inline-block; text-transform: uppercase; letter-spacing: 0.08em;
    font-size: var(--t-small); font-weight: 700; color: var(--c-blue);
    margin-bottom: var(--s-2);
}
.section--charcoal .eyebrow { color: #fff; opacity: 0.9; }
.muted { color: var(--c-muted); }

.grid { display: grid; gap: var(--s-3); }
.grid--cards { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

/* ----- Wordmark ----- */
.wordmark {
    display: inline-flex; align-items: center; gap: 0.18em;
    font-weight: 800; letter-spacing: -0.03em; color: var(--c-ink);
    line-height: 1; white-space: nowrap;
}
.wordmark--dark { color: #fff; }
.wordmark__24 { color: var(--c-accent); }
.wordmark__dot {
    width: 0.34em; height: 0.34em; border-radius: 999px;
    background: var(--c-accent); display: inline-block;
    box-shadow: 0 0 0 0.12em rgba(249,115,22,0.18);
}

/* ----- Buttons ----- */
.btn {
    display: inline-flex; align-items: center; gap: var(--s-1);
    padding: 12px 20px; border-radius: var(--radius-sm);
    font-weight: 700; font-size: var(--t-body);
    border: 1.5px solid transparent; cursor: pointer;
    transition: background-color 120ms ease, color 120ms ease, border-color 120ms ease, transform 120ms ease;
    text-decoration: none; line-height: 1;
}
.btn:hover { text-decoration: none; }
.btn--lg { padding: 15px 26px; font-size: 1.1rem; }
.btn--primary { background: var(--c-blue); color: #fff; }
.btn--primary:hover { background: var(--c-blue-dark); color: #fff; }
.btn--accent { background: var(--c-accent-cta); color: #fff; }
.btn--accent:hover { background: var(--c-accent-cta-dark); color: #fff; transform: translateY(-1px); }
.btn--whatsapp { background: #fff; color: var(--c-charcoal); border-color: var(--c-border); }
.btn--whatsapp:hover { background: var(--c-bg-alt); color: var(--c-charcoal); }
.btn--whatsapp .icon { color: var(--c-wa); }
.btn--secondary { background: transparent; color: var(--c-ink); border-color: var(--c-border); }
.btn--secondary:hover { background: var(--c-bg-alt); color: var(--c-ink); }
.btn .arrow { transition: transform 120ms ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ----- Header ----- */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,0.9); backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--c-border);
}
.site-header__inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: var(--s-2) var(--s-3); max-width: var(--container-max); margin: 0 auto; gap: var(--s-3);
}
.site-header__logo, .site-header__logo:hover { text-decoration: none; }
.site-header__nav { display: flex; align-items: center; gap: var(--s-3); }
.site-header__nav a { color: var(--c-charcoal); font-weight: 600; font-size: 1rem; padding: var(--s-1) 0; }
.site-header__nav a:hover { color: var(--c-blue); text-decoration: none; }
.site-header__cta { display: flex; align-items: center; gap: var(--s-2); }
.nav-toggle { display: none; background: none; border: 0; padding: var(--s-1); cursor: pointer; color: var(--c-ink); }

/* ----- Footer ----- */
.site-footer { background: var(--c-charcoal); color: #fff; padding: var(--s-8) 0 var(--s-4); }
.site-footer a { color: rgba(255,255,255,0.85); }
.site-footer a:hover { color: #fff; }
.site-footer__grid { display: grid; gap: var(--s-4); grid-template-columns: 2fr repeat(4, 1fr); margin-bottom: var(--s-6); }
.site-footer__col h4 { color: #fff; font-size: var(--t-small); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 700; margin-bottom: var(--s-2); }
.site-footer__col ul { list-style: none; padding: 0; margin: 0; }
.site-footer__col li { margin-bottom: var(--s-1); }
.site-footer__brand p { color: rgba(255,255,255,0.65); max-width: 340px; margin-top: var(--s-2); }
.site-footer__legal {
    border-top: 1px solid rgba(255,255,255,0.12); padding-top: var(--s-3);
    display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--s-2);
    color: rgba(255,255,255,0.6); font-size: var(--t-small);
}

/* ----- Hero ----- */
.hero {
    padding: var(--s-12) 0;
    background: radial-gradient(120% 120% at 85% 0%, var(--c-blue-soft) 0%, var(--c-bg) 55%);
    border-bottom: 1px solid var(--c-border);
}
.hero__inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--s-6); align-items: center; }
.hero__h1 { font-size: var(--t-display); line-height: var(--lh-display); max-width: 15ch; margin-bottom: var(--s-3); }
.hero__sub { font-size: 1.25rem; line-height: 1.5; color: var(--c-charcoal); max-width: 56ch; margin-bottom: var(--s-4); }
.hero__ctas { display: flex; align-items: center; gap: var(--s-2); flex-wrap: wrap; }

/* Hero media — agent photo with the live-conversation card floating over it */
.hero__media { position: relative; }
.hero__photo {
    margin: 0; border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: 0 24px 60px rgba(15,23,42,0.20); border: 1px solid rgba(255,255,255,0.6);
}
.hero__photo img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; object-position: 50% 38%; }

/* Hero aside — incoming-call / WhatsApp mock card */
.device-card {
    background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-float); padding: var(--s-3); display: grid; gap: var(--s-2);
}
.device-card--float {
    position: relative; z-index: 2; width: 88%; margin: -72px auto 0;
    background: rgba(255,255,255,0.94); backdrop-filter: blur(10px);
    border-color: rgba(255,255,255,0.7);
    box-shadow: 0 18px 44px rgba(15,23,42,0.22);
}
.device-card__row { display: grid; grid-template-columns: auto 1fr; gap: var(--s-2); align-items: start; padding: var(--s-2); border-radius: var(--radius-md); background: var(--c-bg-alt); }
.device-card__badge { width: 34px; height: 34px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; color: #fff; flex-shrink: 0; }
.device-card__badge--call { background: var(--c-blue); }
.device-card__badge--wa { background: var(--c-wa); }
.device-card__label { font-size: var(--t-small); color: var(--c-muted); font-weight: 600; margin-bottom: 2px; }
.device-card__text { color: var(--c-ink); font-weight: 500; }
.device-card__answer {
    display: flex; align-items: center; gap: var(--s-1);
    font-weight: 600; color: var(--c-blue); font-size: var(--t-small);
    padding: var(--s-1) var(--s-2);
}
.device-card__dot {
    width: 9px; height: 9px; border-radius: 999px; background: var(--c-success);
    box-shadow: 0 0 0 0 rgba(22,163,74,0.5); animation: pulse 1.8s infinite;
}
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(22,163,74,0.45);} 70% { box-shadow: 0 0 0 8px rgba(22,163,74,0);} 100% { box-shadow: 0 0 0 0 rgba(22,163,74,0);} }
@media (prefers-reduced-motion: reduce) { .device-card__dot { animation: none; } }

/* ----- Breadcrumb ----- */
.breadcrumb { background: var(--c-bg-alt); border-bottom: 1px solid var(--c-border); font-size: var(--t-small); color: var(--c-muted); }
.breadcrumb .container { padding-top: var(--s-2); padding-bottom: var(--s-2); }
.breadcrumb a { color: var(--c-muted); }
.breadcrumb a:hover { color: var(--c-blue); }
.breadcrumb__sep { margin: 0 6px; }

/* ----- Page hero (legal) ----- */
.page-hero { padding: var(--s-8) 0 var(--s-4); border-bottom: 1px solid var(--c-border); background: var(--c-bg-alt); }
.page-hero h1 { margin-bottom: 0; }

/* ----- Cards / problem / feature ----- */
.card, .problem, .feature {
    background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-md);
    padding: var(--s-3); transition: box-shadow 160ms ease, border-color 160ms ease, transform 160ms ease;
    display: flex; flex-direction: column; gap: var(--s-1);
}
.card:hover, .feature:hover { box-shadow: var(--shadow-card-hover); border-color: #cfd9e6; transform: translateY(-2px); }
.card h3, .problem h3, .feature h3 { margin-bottom: 4px; }
.card p, .problem p, .feature p { margin: 0; color: var(--c-charcoal); }
.problem { background: var(--c-bg); }
.problem h3 { color: var(--c-ink); }
.problem h3::before { content: "✕"; color: var(--c-error); font-weight: 700; margin-right: 8px; }

/* Card as a link (casos de uso · otros sectores) */
a.card.card--link { color: inherit; }
a.card.card--link:hover { text-decoration: none; color: inherit; }
.card__more { margin-top: auto; padding-top: var(--s-1); color: var(--c-blue); font-weight: 700; font-size: var(--t-small); display: inline-flex; align-items: center; gap: 6px; }
a.card--link:hover .card__more { color: var(--c-blue-dark); }
a.card--link:hover .card__more .arrow { transform: translateX(3px); }
.card__more .arrow { transition: transform 120ms ease; }

.feature__icon {
    width: 52px; height: 52px; border-radius: var(--radius-sm);
    background: #fff; color: var(--c-blue);
    display: inline-flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-card); margin-bottom: var(--s-1);
}

/* ----- Process stepper ----- */
.steps { counter-reset: step; display: grid; gap: var(--s-3); }
.step { display: grid; grid-template-columns: auto 1fr; gap: var(--s-3); align-items: start; padding: var(--s-3); border: 1px solid var(--c-border); border-radius: var(--radius-md); background: #fff; }
.step__num { width: 44px; height: 44px; border-radius: 999px; background: var(--c-blue); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.2rem; }
.step__body h3 { margin-bottom: 4px; }
.step__body p { margin: 0; color: var(--c-charcoal); }

/* ----- Proof / stats ----- */
.proof { display: grid; grid-template-columns: 1.3fr 1fr; gap: var(--s-6); align-items: center; }
.proof__copy .btn { margin-top: var(--s-2); }
.proof__stats { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--s-2); }
.stat { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-md); padding: var(--s-3) var(--s-2); text-align: center; }
.stat__num { display: block; font-size: 2.4rem; font-weight: 800; color: var(--c-accent); line-height: 1; letter-spacing: -0.03em; }
.stat__label { display: block; font-size: var(--t-small); color: rgba(255,255,255,0.75); margin-top: 6px; }

/* ----- FAQ ----- */
.faq { display: grid; gap: var(--s-1); }
.faq__item { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-md); overflow: hidden; }
.faq__item summary {
    cursor: pointer; list-style: none; padding: var(--s-3);
    font-weight: 700; color: var(--c-ink); display: flex; justify-content: space-between; align-items: center; gap: var(--s-2);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "+"; font-size: 1.5rem; font-weight: 400; color: var(--c-blue); line-height: 1; }
.faq__item[open] summary::after { content: "–"; }
.faq__a { padding: 0 var(--s-3) var(--s-3); }
.faq__a p { margin: 0; color: var(--c-charcoal); }

/* ----- Booking ----- */
.booking__frame { border: 1px solid var(--c-border); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-card); background: #fff; }
.booking__alt { text-align: center; margin-top: var(--s-3); color: var(--c-muted); }

/* ----- Prose (legal) ----- */
.prose { max-width: var(--reading-max); }
.prose h2 { margin-top: var(--s-6); }
.prose h3 { margin-top: var(--s-4); }
.prose ul { margin-bottom: var(--s-3); }

/* ----- Cookie banner ----- */
.cookie-banner {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 1100;
    background: var(--c-charcoal); color: #fff; box-shadow: 0 -4px 16px rgba(0,0,0,0.2); padding: var(--s-3) 0;
}
.cookie-banner[hidden] { display: none; }
.cookie-banner__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--s-3); flex-wrap: wrap; }
.cookie-banner__text { margin: 0; font-size: var(--t-small); line-height: 1.5; max-width: 62ch; color: rgba(255,255,255,0.85); }
.cookie-banner__text a { color: #fff; text-decoration: underline; }
.cookie-banner__actions { display: flex; gap: var(--s-2); flex-shrink: 0; }
.cookie-banner .btn--secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,0.4); }
.cookie-banner .btn--secondary:hover { background: rgba(255,255,255,0.1); color: #fff; }

/* ----- Utilities ----- */
.text-center { text-align: center; }
.mt-2 { margin-top: var(--s-2); } .mt-3 { margin-top: var(--s-3); } .mt-4 { margin-top: var(--s-4); }
.mb-0 { margin-bottom: 0; }

/* ----- Blazor error UI ----- */
#blazor-error-ui { background: var(--c-error); color: #fff; bottom: 0; display: none; left: 0; padding: 0.6rem 1.25rem; position: fixed; width: 100%; z-index: 1000; box-shadow: 0 -1px 4px rgba(0,0,0,0.2); }
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }

/* ----- Responsive ----- */
@media (max-width: 900px) {
    .hero__inner { grid-template-columns: 1fr; }
    .hero__aside { order: -1; max-width: 440px; margin-inline: auto; width: 100%; }
    .proof { grid-template-columns: 1fr; }
    .site-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    :root { --t-display: 2.25rem; --t-h1: 1.875rem; --t-h2: 1.625rem; }
    .section { padding: var(--s-8) 0; }
    .hero { padding: var(--s-8) 0; }
    .hero__h1, .hero__sub { max-width: 100%; }
    .proof__stats { grid-template-columns: 1fr 1fr 1fr; }
    .site-footer__grid { grid-template-columns: 1fr; }
    .site-header__nav {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        background: #fff; border-bottom: 1px solid var(--c-border);
        flex-direction: column; align-items: stretch; gap: 0; padding: var(--s-2) var(--s-3);
    }
    .site-header__nav.is-open { display: flex; }
    .site-header__nav a { padding: var(--s-2) 0; border-bottom: 1px solid var(--c-border); }
    .nav-toggle { display: inline-flex; }
    .cookie-banner__inner { flex-direction: column; align-items: stretch; }
}

/* Callout / disclaimer box (used on trust & legal-info pages) */
.callout {
    margin: var(--s-5) 0 0;
    padding: var(--s-3) var(--s-4);
    background: var(--c-blue-soft);
    border-left: 4px solid var(--c-blue);
    border-radius: 8px;
    color: var(--c-charcoal);
}
.callout p { margin: 0; font-size: 0.95rem; }