/* ═══════════════════════════════════════════════════════════════
   Sinapsis SpA — sitio corporativo
   Tema ejecutivo claro basado en la paleta del logo:
   navy tinta / azul red neuronal / verde red neuronal
   ═══════════════════════════════════════════════════════════════ */

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

:root {
    --ink: #0F2237;          /* titulares */
    --ink-soft: #3A4B5F;     /* cuerpo */
    --muted: #67788C;        /* secundario */
    --bg: #FFFFFF;
    --bg-soft: #F4F7FA;      /* bandas alternas */
    --bg-navy: #0B1F33;      /* footer / banda oscura */
    --bg-navy-2: #12293F;
    --blue: #2563EB;
    --blue-dark: #1D4FC4;
    --blue-ghost: #EBF1FE;
    --green: #16A97C;
    --green-dark: #0E8A63;
    --green-ghost: #E8F7F1;
    --border: #E3E9F0;
    --border-strong: #CBD6E2;
    --shadow-card: 0 1px 2px rgba(15, 34, 55, 0.05), 0 8px 24px rgba(15, 34, 55, 0.06);
    --shadow-card-hover: 0 2px 4px rgba(15, 34, 55, 0.06), 0 16px 40px rgba(15, 34, 55, 0.10);
    --radius: 14px;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--ink-soft);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

.skip-link {
    position: absolute; left: -9999px; top: 0; z-index: 2000;
    background: var(--ink); color: #fff; padding: 0.6rem 1rem; border-radius: 0 0 8px 0;
    text-decoration: none; font-size: 0.85rem;
}
.skip-link:focus { left: 0; }

a:focus-visible, button:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ═══════════════════ NAV ═══════════════════ */
nav.site-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    height: 76px;
    display: flex; justify-content: space-between; align-items: center;
    padding: 0 2rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    border-bottom: 1px solid var(--border);
}

.nav-brand { display: inline-flex; align-items: center; text-decoration: none; }
.nav-brand img { height: 46px; width: auto; display: block; }

.nav-links {
    display: flex; align-items: center; gap: 0.25rem;
    list-style: none;
}

.nav-links a {
    color: var(--ink-soft);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 0.85rem;
    border-radius: 8px;
    transition: color 0.2s, background 0.2s;
    white-space: nowrap;
}

.nav-links a:hover { color: var(--ink); background: var(--bg-soft); }

.nav-cta {
    background: var(--blue) !important;
    color: #fff !important;
    font-weight: 600 !important;
    padding: 0.55rem 1.15rem !important;
    margin-left: 0.5rem;
}
.nav-cta:hover { background: var(--blue-dark) !important; }

.hamburger {
    display: none; flex-direction: column; gap: 5px;
    cursor: pointer; background: none; border: none; padding: 10px;
}
.hamburger span {
    width: 24px; height: 2px; background: var(--ink);
    border-radius: 2px; transition: all 0.3s;
}

.lang-switch { display: flex; align-items: center; gap: 0.3rem; font-size: 0.75rem; font-weight: 500; margin-left: 0.5rem; }
.lang-switch a { color: var(--muted); text-decoration: none; padding: 0.2rem 0.4rem; border-radius: 4px; }
.lang-switch a:hover { color: var(--ink); background: var(--bg-soft); }
.lang-switch .lang-active { color: var(--ink); font-weight: 700; padding: 0.2rem 0.4rem; }
.lang-switch .lang-sep { color: var(--border-strong); }

/* ═══════════════════ ESTRUCTURA ═══════════════════ */
main { display: block; }
section { padding: 6.5rem 2rem; }
.container { max-width: 1120px; margin: 0 auto; }
.band-soft { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.band-navy { background: linear-gradient(160deg, var(--bg-navy), var(--bg-navy-2)); color: #D7E2EE; }

.section-label {
    display: inline-block;
    font-size: 0.75rem; font-weight: 700;
    letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--blue);
    margin-bottom: 0.9rem;
}
.section-label.green { color: var(--green-dark); }
.band-navy .section-label { color: #7FB4FF; }

.section-title {
    font-size: clamp(1.7rem, 3.6vw, 2.4rem);
    font-weight: 800;
    color: var(--ink);
    line-height: 1.22;
    letter-spacing: -0.015em;
    margin-bottom: 1rem;
}
.band-navy .section-title { color: #FFFFFF; }

.section-subtitle {
    font-size: 1.05rem;
    color: var(--muted);
    max-width: 640px;
    line-height: 1.75;
}
.band-navy .section-subtitle { color: #A9BDD2; }

/* ═══════════════════ HERO ═══════════════════ */
.hero {
    padding: 10rem 2rem 5rem;
    background:
        radial-gradient(ellipse 900px 480px at 88% -10%, rgba(37, 99, 235, 0.07), transparent 65%),
        radial-gradient(ellipse 700px 420px at -5% 100%, rgba(22, 169, 124, 0.06), transparent 60%),
        var(--bg);
    border-bottom: 1px solid var(--border);
}

.hero-grid {
    max-width: 1120px; margin: 0 auto;
    display: grid; grid-template-columns: 1.05fr 0.95fr;
    gap: 4rem; align-items: center;
}

.hero-kicker {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-size: 0.8rem; font-weight: 600;
    color: var(--blue-dark);
    background: var(--blue-ghost);
    border: 1px solid rgba(37, 99, 235, 0.18);
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: clamp(2.1rem, 4.6vw, 3.3rem);
    font-weight: 800;
    color: var(--ink);
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
}

.hero h1 em { font-style: normal; color: var(--blue); }

.hero-sub {
    font-size: 1.08rem;
    color: var(--ink-soft);
    line-height: 1.8;
    max-width: 540px;
    margin-bottom: 2.25rem;
}

.hero-buttons { display: flex; gap: 0.9rem; flex-wrap: wrap; }

.hero-note { margin-top: 1.4rem; font-size: 0.83rem; color: var(--muted); }

.hero-visual { min-width: 0; }
.hero-visual svg { width: 100%; height: auto; display: block; }

/* ═══════════════════ BOTONES ═══════════════════ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.8rem 1.7rem;
    border-radius: 10px;
    font-size: 0.95rem; font-weight: 600;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    cursor: pointer; border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--blue); color: #fff;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.24);
}
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3); }

.btn-outline {
    background: #fff; color: var(--ink);
    border: 1px solid var(--border-strong);
}
.btn-outline:hover { border-color: var(--blue); color: var(--blue-dark); transform: translateY(-1px); }

.btn-green {
    background: var(--green-dark); color: #fff;
    box-shadow: 0 4px 16px rgba(22, 169, 124, 0.24);
}
.btn-green:hover { background: #0B7453; transform: translateY(-1px); }

.btn-ghost-light {
    background: rgba(255,255,255,0.08); color: #fff;
    border: 1px solid rgba(255,255,255,0.25);
}
.btn-ghost-light:hover { background: rgba(255,255,255,0.16); transform: translateY(-1px); }

/* ═══════════════════ CARDS GENÉRICAS ═══════════════════ */
.cards-grid { display: grid; gap: 1.4rem; margin-top: 3rem; }
.cards-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cards-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cards-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.9rem;
    box-shadow: var(--shadow-card);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card-hover); border-color: var(--border-strong); }

.card-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.2rem;
    background: var(--blue-ghost);
    color: var(--blue-dark);
}
.card-icon.green { background: var(--green-ghost); color: var(--green-dark); }
.card-icon svg { width: 22px; height: 22px; }

.card h3 { font-size: 1.06rem; font-weight: 700; color: var(--ink); margin-bottom: 0.6rem; }
.card p { font-size: 0.92rem; color: var(--ink-soft); line-height: 1.7; }
.card .card-tag {
    display: inline-block; font-size: 0.7rem; font-weight: 700;
    letter-spacing: 0.08em; text-transform: uppercase;
    padding: 0.2rem 0.6rem; border-radius: 999px; margin-bottom: 0.8rem;
}
.card-tag.tag-blue { background: var(--blue-ghost); color: var(--blue-dark); }
.card-tag.tag-green { background: var(--green-ghost); color: var(--green-dark); }
.card-tag.tag-gray { background: var(--bg-soft); color: var(--muted); border: 1px solid var(--border); }

.card-link { display: inline-block; margin-top: 0.9rem; font-size: 0.88rem; font-weight: 600; color: var(--blue); text-decoration: none; }
.card-link:hover { color: var(--blue-dark); text-decoration: underline; }

/* ═══════════════════ HUMANOS (producto principal) ═══════════════════ */
.product-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 3.5rem; align-items: center; margin-top: 2.5rem;
}

.product-bullets { list-style: none; margin: 1.5rem 0 2rem; }
.product-bullets li {
    display: flex; align-items: flex-start; gap: 0.7rem;
    padding: 0.42rem 0;
    color: var(--ink-soft); font-size: 0.95rem; line-height: 1.6;
}
.product-bullets li::before {
    content: '✓';
    color: var(--green-dark); font-weight: 700;
    flex-shrink: 0; margin-top: 0.05em;
}

.product-ctas { display: flex; gap: 0.8rem; flex-wrap: wrap; }

.module-panel {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow-card-hover);
    overflow: hidden;
}
.module-panel-head {
    display: flex; align-items: center; gap: 0.6rem;
    padding: 0.9rem 1.3rem;
    background: var(--bg-navy);
}
.module-panel-head .dot { width: 9px; height: 9px; border-radius: 50%; }
.module-panel-head .dot:nth-child(1) { background: #FF6B6B; }
.module-panel-head .dot:nth-child(2) { background: #FFC94D; }
.module-panel-head .dot:nth-child(3) { background: #2ECC71; }
.module-panel-head span { color: #B8C8DA; font-size: 0.78rem; font-weight: 600; margin-left: 0.4rem; letter-spacing: 0.02em; }

.module-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem; padding: 1.3rem;
}
.module-chip {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.9rem 0.6rem;
    text-align: center;
    font-size: 0.8rem; font-weight: 600; color: var(--ink);
    transition: border-color 0.25s, background 0.25s, transform 0.25s;
}
.module-chip:hover { border-color: var(--green); background: var(--green-ghost); transform: translateY(-2px); }
.module-chip .mi { display: block; font-size: 1.25rem; margin-bottom: 0.3rem; }

/* ═══════════════════ MÉTODO ═══════════════════ */
.method-quote {
    max-width: 720px;
    margin: 2rem 0 0;
    padding: 1.4rem 1.7rem;
    background: #fff;
    border-left: 3px solid var(--blue);
    border-radius: 0 12px 12px 0;
    box-shadow: var(--shadow-card);
    font-size: 0.98rem; color: var(--ink-soft); line-height: 1.8;
}

.method-steps {
    display: grid; grid-template-columns: repeat(5, 1fr);
    gap: 1.1rem; margin-top: 3rem;
    counter-reset: step;
}

.method-step {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem 1.3rem;
    position: relative;
    box-shadow: var(--shadow-card);
}

.method-step .step-num {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--ink); color: #fff;
    font-size: 0.85rem; font-weight: 700;
    margin-bottom: 0.9rem;
}
.method-step:nth-child(4) .step-num, .method-step:nth-child(5) .step-num { background: var(--green-dark); }

.method-step h3 { font-size: 0.98rem; font-weight: 700; color: var(--ink); margin-bottom: 0.4rem; }
.method-step p { font-size: 0.83rem; color: var(--muted); line-height: 1.6; }

/* ═══════════════════ CONFIANZA / CUMPLIMIENTO ═══════════════════ */
.trust-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; margin-top: 3rem; }

.trust-card {
    background: rgba(255,255,255,0.045);
    border: 1px solid rgba(255,255,255,0.11);
    border-radius: var(--radius);
    padding: 1.9rem;
}
.trust-card h3 { font-size: 1.02rem; font-weight: 700; color: #fff; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.6rem; }
.trust-card ul { list-style: none; }
.trust-card li {
    font-size: 0.9rem; color: #A9BDD2; line-height: 1.65;
    padding: 0.35rem 0 0.35rem 1.2rem; position: relative;
}
.trust-card li::before {
    content: ''; position: absolute; left: 0; top: 0.95em;
    width: 5px; height: 5px; border-radius: 50%; background: #4C7DDB;
}
.trust-card li strong { color: #D7E2EE; font-weight: 600; }

.iso-chips { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 1rem; }
.iso-chip {
    font-size: 0.76rem; font-weight: 600;
    color: #C4D4E5;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.14);
    padding: 0.3rem 0.7rem; border-radius: 999px;
}

.trust-disclaimer {
    margin-top: 2rem;
    font-size: 0.82rem; color: #8CA2B8; line-height: 1.7;
    max-width: 860px;
}
.trust-disclaimer a { color: #7FB4FF; }

/* ═══════════════════ CTA FINAL ═══════════════════ */
.cta-final { text-align: center; }
.cta-final .section-title { margin-bottom: 0.8rem; }
.cta-final .section-subtitle { margin: 0 auto 2.2rem; }
.cta-final .hero-buttons { justify-content: center; }
.cta-contact { margin-top: 1.6rem; font-size: 0.9rem; color: var(--muted); }
.cta-contact a { color: var(--blue); text-decoration: none; font-weight: 600; }
.cta-contact a:hover { text-decoration: underline; }

/* ═══════════════════ FOOTER ═══════════════════ */
footer.site-footer {
    background: var(--bg-navy);
    color: #A9BDD2;
    padding: 4rem 2rem 2rem;
}

.footer-grid {
    max-width: 1120px; margin: 0 auto;
    display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 2.5rem;
}

.footer-brand-name {
    font-weight: 800; font-size: 1.15rem; letter-spacing: 0.12em;
    color: #fff; margin-bottom: 0.6rem;
}
.footer-brand-name .s-blue { color: #5B8DEF; }
.footer-brand-name .s-green { color: #2FBF8F; }

.footer-tagline { font-size: 0.87rem; color: #8CA2B8; max-width: 280px; line-height: 1.7; }

.footer-col h4 {
    font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em;
    text-transform: uppercase; color: #7A93AB; margin-bottom: 1rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.55rem; }
.footer-col a {
    color: #B8C8DA; text-decoration: none; font-size: 0.87rem;
    transition: color 0.2s;
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
    max-width: 1120px; margin: 3rem auto 0;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 1rem;
}
.footer-bottom p { font-size: 0.78rem; color: #7A93AB; }
.footer-bottom a { color: #A9BDD2; text-decoration: none; }
.footer-bottom a:hover { color: #fff; }

/* ═══════════════════ CHAT ASISTENTE ═══════════════════ */
.chat-fab {
    position: fixed; bottom: 1.6rem; right: 1.6rem; z-index: 999;
    display: flex; align-items: center; gap: 0.5rem;
    padding: 0.75rem 1.3rem;
    border-radius: 50px;
    background: var(--ink); color: #fff;
    font-weight: 600; font-size: 0.88rem;
    text-decoration: none;
    box-shadow: 0 8px 28px rgba(15, 34, 55, 0.3);
    transition: transform 0.25s, box-shadow 0.25s, background 0.25s;
    cursor: pointer; border: none; font-family: inherit;
}
.chat-fab:hover { transform: translateY(-2px); background: var(--bg-navy-2); box-shadow: 0 12px 36px rgba(15, 34, 55, 0.36); }
.chat-fab svg { width: 19px; height: 19px; }

.chat-modal-overlay {
    position: fixed; inset: 0; z-index: 9999;
    background: rgba(11, 31, 51, 0.5);
    backdrop-filter: blur(3px);
    display: none; align-items: flex-end; justify-content: flex-end;
    padding: 1rem;
}
.chat-modal-overlay.active { display: flex; }

.chat-modal {
    width: 400px; height: 620px; max-width: 100%;
    max-height: calc(100vh - 2rem);
    background: #fff;
    border-radius: 18px; overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 24px 64px rgba(11, 31, 51, 0.35);
    display: flex; flex-direction: column;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { transform: translateY(18px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.chat-modal-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.9rem 1.2rem;
    background: var(--bg-navy);
    color: #fff;
}
.chat-modal-title { font-weight: 700; font-size: 0.95rem; }
.chat-modal-title small { display: block; font-weight: 500; font-size: 0.72rem; color: #8CA2B8; }
.chat-modal-close {
    background: none; border: none; color: #B8C8DA; cursor: pointer;
    padding: 4px; border-radius: 8px; display: flex; transition: all 0.2s;
}
.chat-modal-close:hover { background: rgba(255,255,255,0.12); color: #fff; }
.chat-modal iframe { flex: 1; width: 100%; border: none; background: #fff; }

/* ═══════════════════ PÁGINAS LEGALES ═══════════════════ */
.legal-content {
    max-width: 780px; margin: 0 auto;
    padding: 8rem 2rem 4rem;
}
.legal-content h1 {
    font-size: 2.1rem; font-weight: 800; color: var(--ink);
    letter-spacing: -0.015em; margin-bottom: 0.4rem; line-height: 1.2;
}
.legal-content .last-updated { color: var(--muted); font-size: 0.85rem; margin-bottom: 1.6rem; }
.legal-content h2 {
    font-size: 1.28rem; font-weight: 700; color: var(--ink);
    margin: 2.4rem 0 0.9rem;
}
.legal-content h3 { font-size: 1.02rem; font-weight: 600; color: var(--ink); margin: 1.5rem 0 0.5rem; }
.legal-content p { color: var(--ink-soft); margin-bottom: 1rem; font-size: 0.95rem; }
.legal-content ul, .legal-content ol { color: var(--ink-soft); margin: 0.5rem 0 1.4rem 1.5rem; font-size: 0.95rem; }
.legal-content li { margin-bottom: 0.45rem; }
.legal-content a { color: var(--blue); }
.legal-content a:hover { color: var(--blue-dark); }

.legal-notice {
    background: #FFF8E8;
    border: 1px solid #F0DFAE;
    border-radius: 10px;
    padding: 1rem 1.3rem;
    font-size: 0.88rem;
    color: #6B5518;
    margin-bottom: 2.4rem;
    line-height: 1.65;
}

.legal-table { width: 100%; border-collapse: collapse; margin: 1rem 0 1.6rem; font-size: 0.88rem; }
.legal-table th {
    text-align: left; background: var(--bg-soft);
    color: var(--ink); font-weight: 700;
    padding: 0.65rem 0.9rem; border: 1px solid var(--border);
}
.legal-table td { padding: 0.65rem 0.9rem; border: 1px solid var(--border); color: var(--ink-soft); vertical-align: top; }
.legal-table-wrap { overflow-x: auto; }

.legal-footer-nav {
    margin-top: 3rem; padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.85rem; color: var(--muted);
    display: flex; flex-wrap: wrap; gap: 0.4rem 1.2rem;
}
.legal-footer-nav a { color: var(--ink-soft); text-decoration: none; }
.legal-footer-nav a:hover { color: var(--blue); }

/* ═══════════════════ ITERACIÓN 2 (2026-07-06) ═══════════════════ */
/* Qué resuelve (dolores) */
.pain-list { list-style: none; margin: 1.2rem 0 1.8rem; }
.pain-list li {
    position: relative; padding: 0.4rem 0 0.4rem 1.6rem;
    color: var(--ink-soft); font-size: 0.95rem; line-height: 1.65;
}
.pain-list li::before {
    content: ''; position: absolute; left: 0; top: 0.95em;
    width: 8px; height: 8px; border-radius: 2px;
    background: var(--blue); opacity: 0.7;
}
.mini-label {
    display: block; font-size: 0.72rem; font-weight: 700;
    letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--muted); margin: 1.6rem 0 0.4rem;
}

/* Entregables por servicio */
.deliverables { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }
.deliverable {
    font-size: 0.74rem; font-weight: 600; color: var(--blue-dark);
    background: var(--blue-ghost); border: 1px solid rgba(37, 99, 235, 0.16);
    padding: 0.22rem 0.6rem; border-radius: 999px;
}
.card .deliverables-label {
    display: block; font-size: 0.7rem; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--muted); margin-top: 1.1rem;
}

/* Demo QueBot: browser card */
.browser-card {
    background: #fff; border: 1px solid var(--border);
    border-radius: 16px; overflow: hidden;
    box-shadow: var(--shadow-card-hover);
}
.browser-card-head {
    display: flex; align-items: center; gap: 0.55rem;
    padding: 0.8rem 1.2rem; background: var(--bg-navy);
}
.browser-card-head .dot { width: 9px; height: 9px; border-radius: 50%; }
.browser-card-head .dot:nth-child(1) { background: #FF6B6B; }
.browser-card-head .dot:nth-child(2) { background: #FFC94D; }
.browser-card-head .dot:nth-child(3) { background: #2ECC71; }
.browser-card-head span { color: #B8C8DA; font-size: 0.76rem; font-weight: 600; margin-left: 0.4rem; }
.quebot-embed { display: block; width: 100%; height: 560px; border: none; background: #fff; }
.quebot-fallback {
    padding: 2.6rem 2rem; text-align: center;
    display: flex; flex-direction: column; align-items: center; gap: 1rem;
}
.quebot-fallback p { color: var(--ink-soft); font-size: 0.95rem; max-width: 480px; line-height: 1.7; }
.quebot-notice {
    font-size: 0.78rem; color: var(--muted);
    margin-top: 0.9rem; text-align: center;
}

/* Cumplimiento: pilares */
.pillars-4 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.4rem; margin-top: 3rem; }
.standards-note {
    margin-top: 2rem; padding: 1.3rem 1.6rem;
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12);
    border-radius: 12px; font-size: 0.88rem; color: #C4D4E5; line-height: 1.75;
}
.policy-links { display: flex; flex-wrap: wrap; gap: 0.5rem 1.4rem; margin-top: 1.2rem; }
.policy-links a { color: #7FB4FF; font-size: 0.85rem; text-decoration: none; }
.policy-links a:hover { text-decoration: underline; }

/* Footer con marca */
.footer-brand-row { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 0.8rem; }
.footer-brand-row img { height: 44px; width: 44px; }

@media (max-width: 768px) {
    .pillars-4 { grid-template-columns: 1fr; }
    .quebot-embed { height: 480px; }
    .nav-brand img { height: 38px; }
}

/* ═══════════════════ DIAGNÓSTICO GRATUITO (formulario) ═══════════════════ */
.diag-grid {
    display: grid; grid-template-columns: 0.85fr 1.15fr;
    gap: 3rem; align-items: start; margin-top: 2.5rem;
}
.diag-intro .section-title { margin-bottom: 0.9rem; }
.diag-perks { list-style: none; margin: 1.6rem 0 0; }
.diag-perks li {
    position: relative; padding: 0.4rem 0 0.4rem 1.7rem;
    color: var(--ink-soft); font-size: 0.95rem; line-height: 1.6;
}
.diag-perks li::before {
    content: '✓'; position: absolute; left: 0; top: 0.35em;
    color: var(--green-dark); font-weight: 700;
}
.diag-perks li strong { color: var(--ink); font-weight: 600; }

.diag-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow-card-hover);
    padding: 2rem 2rem 1.8rem;
}
.diag-form { display: grid; gap: 1.1rem; }
.diag-field { display: flex; flex-direction: column; gap: 0.35rem; }
.diag-field label {
    font-size: 0.82rem; font-weight: 600; color: var(--ink);
}
.diag-field label .req { color: var(--blue); margin-left: 0.15rem; }
.diag-field .hint { font-size: 0.76rem; font-weight: 500; color: var(--muted); }
.diag-field input,
.diag-field textarea {
    width: 100%;
    font-family: inherit; font-size: 0.95rem; color: var(--ink);
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.7rem 0.85rem;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.diag-field input::placeholder,
.diag-field textarea::placeholder { color: #9AAABC; }
.diag-field input:focus,
.diag-field textarea:focus {
    outline: none;
    border-color: var(--blue);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
.diag-field textarea { resize: vertical; min-height: 68px; line-height: 1.6; }
.diag-field.invalid input,
.diag-field.invalid textarea { border-color: #E0564B; background: #FEF5F4; }
.diag-error {
    font-size: 0.76rem; color: #C13A2E; font-weight: 500;
    display: none;
}
.diag-field.invalid .diag-error { display: block; }

.diag-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }

/* honeypot: fuera de pantalla, no visible, no tabbable */
.diag-hp {
    position: absolute !important;
    left: -9999px !important; top: auto;
    width: 1px; height: 1px; overflow: hidden;
}

.diag-submit { width: 100%; margin-top: 0.4rem; }
.diag-submit[aria-busy="true"] { opacity: 0.75; pointer-events: none; }
.diag-consent { font-size: 0.76rem; color: var(--muted); line-height: 1.6; margin-top: 0.2rem; }
.diag-consent a { color: var(--blue); text-decoration: none; }
.diag-consent a:hover { text-decoration: underline; }

.diag-status { display: none; border-radius: 12px; padding: 1.2rem 1.3rem; line-height: 1.65; }
.diag-status.show { display: block; }
.diag-status.success {
    background: var(--green-ghost); border: 1px solid #BEE3D5; color: #0B6B4F;
}
.diag-status.success strong { color: var(--green-dark); }
.diag-status.error {
    background: #FEF5F4; border: 1px solid #F3C9C4; color: #8A2C22;
}
.diag-status.error a { color: #8A2C22; font-weight: 600; text-decoration: underline; }
.diag-status-title { font-weight: 700; font-size: 1rem; margin-bottom: 0.3rem; display: block; }

@media (max-width: 900px) {
    .diag-grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 480px) {
    .diag-card { padding: 1.5rem 1.3rem; }
    .diag-row { grid-template-columns: 1fr; }
    .diag-submit { width: 100%; }
}

/* ═══════════════════ ANIMACIONES ═══════════════════ */
.reveal {
    opacity: 0; transform: translateY(22px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    * { animation-duration: 0.001s !important; }
}

/* ═══════════════════ RESPONSIVE ═══════════════════ */
@media (max-width: 1000px) {
    .method-steps { grid-template-columns: repeat(2, 1fr); }
    .cards-grid.cols-3, .cards-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    nav.site-nav { padding: 0 1rem; }

    .nav-links {
        display: none;
        position: absolute; top: 68px; left: 0; right: 0;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column; align-items: stretch;
        padding: 0.8rem 1rem 1.2rem; gap: 0;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 16px 32px rgba(15, 34, 55, 0.08);
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 0.8rem 1rem; }
    .nav-cta { margin: 0.5rem 0 0; text-align: center; }
    .lang-switch { margin: 0.6rem 0 0 0.5rem; }
    .hamburger { display: flex; }

    .hero { padding: 8rem 1.4rem 3.5rem; }
    .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .hero-visual { order: 2; max-width: 480px; margin: 0 auto; }

    section { padding: 4rem 1.4rem; }

    .cards-grid.cols-2, .cards-grid.cols-3, .cards-grid.cols-4 { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr; gap: 2.4rem; }
    .trust-grid { grid-template-columns: 1fr; }
    .method-steps { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }

    .chat-modal { width: 100%; height: calc(100vh - 2rem); border-radius: 14px; }
    .chat-fab span { display: none; }
    .chat-fab { padding: 0.9rem; border-radius: 50%; }
}

@media (max-width: 480px) {
    .hero-buttons { flex-direction: column; align-items: stretch; }
    .hero-buttons .btn, .product-ctas .btn { width: 100%; }
    .legal-content { padding: 7rem 1.25rem 3rem; }
    .legal-content h1 { font-size: 1.7rem; }
}