/* ============================================================
   Sistemático — sitio público (estilo TECH dark + neón)
   ============================================================
   Variables --primary, --accent y --secondary se inyectan
   desde config.php a través de header.php.
   ============================================================ */

:root {
    --bg:         #0a1124;   /* fondo principal (dark navy) */
    --bg-alt:     #0e1730;   /* fondo de sección alterna */
    --bg-card:    rgba(255, 255, 255, 0.04);
    --bg-card-h:  rgba(255, 255, 255, 0.07);
    --border:     rgba(255, 255, 255, 0.10);
    --border-h:   rgba(34, 211, 238, 0.35);
    --text:       #e6edf7;
    --text-soft:  #aab4c8;
    --text-mute:  #6b7895;
    --shadow:     0 10px 30px rgba(0, 0, 0, 0.35);
    --shadow-lg:  0 30px 60px rgba(0, 0, 0, 0.55);
    --glow:       0 0 0 1px rgba(34, 211, 238, 0.35), 0 0 24px rgba(34, 211, 238, 0.25);
    --radius:     14px;
    --radius-sm:  8px;
    --mono:       "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    --sans:       "Inter", -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
    margin: 0; padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

img, svg { max-width: 100%; height: auto; }

a { color: var(--accent); text-decoration: none; transition: opacity .2s, color .2s; }
a:hover { opacity: 0.85; }

h1, h2, h3, h4 { font-weight: 700; color: #fff; margin-top: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); line-height: 1.1; }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; }
p  { color: var(--text-soft); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.section { padding: 110px 0; position: relative; }
.section--alt { background: var(--bg-alt); }

.section-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 14px;
}
.section-eyebrow::before {
    content: "";
    width: 28px; height: 2px;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
}
.section-intro {
    max-width: 720px;
    color: var(--text-soft);
    font-size: 1.05rem;
    margin-bottom: 56px;
}

/* Grid tech (lines) reutilizable como fondo decorativo */
.bg-grid::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
    pointer-events: none;
}

/* ===== NAVBAR ===== */
.navbar {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(10, 17, 36, 0.85);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
}
.navbar-inner {
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.navbar-brand {
    display: flex; align-items: center;
    color: var(--accent);
    height: 42px;
}
.navbar-brand svg { height: 42px; width: auto; }
.navbar-menu { display: flex; align-items: center; gap: 28px; }
.navbar-menu a {
    color: var(--text-soft);
    font-weight: 500;
    font-size: 0.93rem;
    transition: color .2s;
}
.navbar-menu a:hover { color: #fff; opacity: 1; }
.navbar-toggle {
    display: none; background: none; border: 0;
    width: 40px; height: 40px; cursor: pointer;
}
.navbar-toggle span {
    display: block; height: 2px; background: var(--text); margin: 6px auto; width: 24px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 13px 26px;
    border-radius: 10px;
    font-weight: 600; font-size: 0.95rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .15s, box-shadow .25s, background .2s, border-color .2s, color .2s;
    text-align: center;
    font-family: var(--sans);
}
.btn-primary {
    background: var(--accent);
    color: #001018;
    border-color: var(--accent);
    box-shadow: 0 8px 24px rgba(34, 211, 238, 0.35);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(34, 211, 238, 0.55), 0 0 0 1px rgba(255,255,255,0.1);
    color: #001018; opacity: 1;
}
.btn-outline {
    background: transparent; color: #fff;
    border-color: rgba(255,255,255,0.25);
}
.btn-outline:hover {
    border-color: var(--accent); color: var(--accent); opacity: 1;
}

/* ===== HERO ===== */
.hero {
    position: relative;
    padding: 120px 0 140px;
    overflow: hidden;
    background:
        radial-gradient(1100px 600px at 80% -10%, rgba(34, 211, 238, 0.18), transparent 60%),
        radial-gradient(800px 500px at 0% 100%, rgba(13, 59, 102, 0.45), transparent 60%),
        var(--bg);
}
.hero::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(180deg, transparent, #000 25%, #000 75%, transparent);
    -webkit-mask-image: linear-gradient(180deg, transparent, #000 25%, #000 75%, transparent);
    pointer-events: none;
}
.hero-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    background: rgba(34, 211, 238, 0.10);
    border: 1px solid rgba(34, 211, 238, 0.35);
    color: var(--accent);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    margin-bottom: 26px;
    font-family: var(--mono);
}
.hero-eyebrow .pulse {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 0 var(--accent);
    animation: pulse 1.8s infinite;
}
@keyframes pulse {
    0%   { box-shadow: 0 0 0 0   rgba(34, 211, 238, 0.7); }
    70%  { box-shadow: 0 0 0 12px rgba(34, 211, 238, 0); }
    100% { box-shadow: 0 0 0 0   rgba(34, 211, 238, 0); }
}
.hero h1 { color: #fff; margin-bottom: 22px; }
.hero h1 .grad {
    background: linear-gradient(90deg, var(--accent), #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.hero p {
    font-size: 1.13rem;
    color: var(--text-soft);
    margin-bottom: 36px;
    max-width: 560px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* === Hero device: phone scanning credential === */
.hero-mock {
    position: relative;
    height: 460px;
}

/* Credencial flotante */
.credential {
    position: absolute;
    top: 30px; left: 0;
    width: 240px;
    background: linear-gradient(160deg, #1c2748, #0f1830);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 18px;
    box-shadow: var(--shadow-lg);
    transform: rotate(-5deg);
    color: var(--text);
    z-index: 2;
}
.credential::before {
    content: "";
    position: absolute; inset: -1px;
    border-radius: 18px;
    padding: 1px;
    background: linear-gradient(160deg, rgba(34,211,238,0.6), transparent 60%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
}
.credential-head {
    display: flex; justify-content: space-between; align-items: center;
    font-family: var(--mono); font-size: 0.7rem;
    color: var(--accent); margin-bottom: 8px;
    letter-spacing: 2px;
}
.credential-name { font-weight: 700; font-size: 1rem; color: #fff; }
.credential-sub  { color: var(--text-mute); font-size: 0.8rem; margin-bottom: 14px; }
.credential-qr {
    background: #fff;
    padding: 10px;
    border-radius: 8px;
    width: 130px; height: 130px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}
.credential-qr svg { width: 100%; height: 100%; display: block; }
.credential-qr::after {
    content: "";
    position: absolute; left: 0; right: 0; height: 2px;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent), 0 0 4px #fff;
    top: 0;
    animation: scan 2.4s ease-in-out infinite;
    border-radius: 2px;
}
@keyframes scan {
    0%   { top: 0;   opacity: 0; }
    10%  { opacity: 1; }
    50%  { top: calc(100% - 2px); opacity: 1; }
    90%  { opacity: 1; }
    100% { top: 0;   opacity: 0; }
}
.credential-foot {
    margin-top: 14px;
    font-family: var(--mono);
    font-size: 0.66rem;
    color: var(--text-mute);
    display: flex; justify-content: space-between;
}

/* Phone (la APP que valida) */
.phone {
    position: absolute;
    bottom: 0; right: 0;
    width: 240px; height: 440px;
    background: #0a0f1f;
    border: 8px solid #1a2138;
    border-radius: 32px;
    box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(255,255,255,0.05);
    overflow: hidden;
    z-index: 3;
}
.phone::before {
    /* Notch */
    content: "";
    position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 90px; height: 18px;
    background: #1a2138;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
}
.phone-screen {
    height: 100%; padding: 32px 14px 14px;
    display: flex; flex-direction: column;
    background:
        radial-gradient(circle at 50% 30%, rgba(34,211,238,0.18), transparent 60%),
        #0a0f1f;
}
.phone-status {
    font-family: var(--mono);
    font-size: 0.62rem;
    color: var(--text-mute);
    display: flex; justify-content: space-between;
    margin-bottom: 12px;
}
.phone-app-title {
    color: #fff; font-weight: 700; font-size: 0.95rem;
    text-align: center; margin-bottom: 4px;
}
.phone-app-sub {
    text-align: center; color: var(--text-mute); font-size: 0.72rem;
    margin-bottom: 18px;
}
.phone-viewfinder {
    position: relative;
    flex: 1;
    border-radius: 12px;
    background: rgba(255,255,255,0.03);
    overflow: hidden;
}
.phone-viewfinder::before,
.phone-viewfinder::after {
    /* Esquinas del visor estilo cámara */
    content: "";
    position: absolute;
    width: 26px; height: 26px;
    border: 2px solid var(--accent);
}
.phone-viewfinder::before {
    top: 10px; left: 10px;
    border-right: 0; border-bottom: 0;
}
.phone-viewfinder::after {
    bottom: 10px; right: 10px;
    border-left: 0; border-top: 0;
}
.phone-viewfinder .corner-tr,
.phone-viewfinder .corner-bl {
    position: absolute; width: 26px; height: 26px;
    border: 2px solid var(--accent);
}
.phone-viewfinder .corner-tr { top: 10px; right: 10px; border-left: 0; border-bottom: 0; }
.phone-viewfinder .corner-bl { bottom: 10px; left: 10px; border-right: 0; border-top: 0; }
.phone-viewfinder .vf-status {
    position: absolute; bottom: -8px; left: 0; right: 0;
    text-align: center;
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 2px;
}
.phone-result {
    margin-top: 14px;
    background: rgba(46, 204, 113, 0.15);
    border: 1px solid rgba(46, 204, 113, 0.5);
    color: #4ade80;
    border-radius: 10px;
    padding: 8px 10px;
    text-align: center;
    font-size: 0.78rem;
    font-weight: 600;
}

/* ===== STATS ===== */
.stats {
    margin-top: 80px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    backdrop-filter: blur(8px);
}
.stat {
    padding: 28px 22px;
    text-align: center;
    border-right: 1px solid var(--border);
}
.stat:last-child { border-right: 0; }
.stat-num {
    font-family: var(--mono);
    font-size: 2.1rem; font-weight: 700;
    color: var(--accent);
    display: block;
    text-shadow: 0 0 24px rgba(34,211,238,0.35);
}
.stat-label {
    color: var(--text-mute); font-size: 0.85rem; margin-top: 4px;
    font-family: var(--mono); letter-spacing: 1px; text-transform: uppercase;
}

/* ===== MÓDULOS ===== */
.modules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.module-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px 26px;
    transition: transform .25s, border-color .25s, background .25s, box-shadow .25s;
    overflow: hidden;
}
.module-card::after {
    content: "";
    position: absolute; inset: 0;
    border-radius: var(--radius);
    background: radial-gradient(400px 200px at var(--mx, 50%) var(--my, 0%), rgba(34,211,238,0.12), transparent 60%);
    opacity: 0;
    transition: opacity .25s;
    pointer-events: none;
}
.module-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-h);
    background: var(--bg-card-h);
}
.module-card:hover::after { opacity: 1; }
.module-icon {
    width: 52px; height: 52px;
    border-radius: 12px;
    background: rgba(34, 211, 238, 0.10);
    border: 1px solid rgba(34, 211, 238, 0.35);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 18px;
    font-size: 1.4rem;
}
.module-card h3 { color: #fff; margin-bottom: 8px; }
.module-card p  { color: var(--text-soft); margin: 0; font-size: 0.95rem; }

/* ===== ECOSISTEMA ===== */
.ecosystem {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.eco-card {
    position: relative;
    background: linear-gradient(160deg, rgba(34,211,238,0.06), rgba(255,255,255,0.02));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 28px;
    overflow: hidden;
    transition: border-color .25s, transform .25s;
}
.eco-card:hover { border-color: var(--border-h); transform: translateY(-4px); }
.eco-card .eco-num {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.eco-card h3 { color: #fff; margin-bottom: 8px; font-size: 1.3rem; }
.eco-card p  { color: var(--text-soft); font-size: 0.95rem; }
.eco-tag {
    display: inline-block;
    margin-top: 14px;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--text-mute);
    letter-spacing: 1.5px;
}
.eco-icon {
    width: 64px; height: 64px;
    border-radius: 14px;
    background: rgba(34,211,238,0.10);
    border: 1px solid rgba(34,211,238,0.35);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.7rem;
    margin-bottom: 20px;
}

/* ===== INTEGRACIONES ===== */
.integrations {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.integration {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 22px;
    text-align: center;
    transition: border-color .25s, transform .25s, background .25s;
}
.integration:hover { border-color: var(--border-h); transform: translateY(-3px); background: var(--bg-card-h); }
.integration-icon {
    width: 44px; height: 44px;
    margin: 0 auto 10px;
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem;
}
.integration-name { color: #fff; font-weight: 600; font-size: 0.95rem; }
.integration-desc { color: var(--text-mute); font-size: 0.8rem; margin-top: 4px; font-family: var(--mono); letter-spacing: 0.5px; }

/* ===== BENEFITS ===== */
.benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.benefit { display: flex; gap: 16px; align-items: flex-start; }
.benefit-num {
    flex: 0 0 44px; height: 44px; border-radius: 12px;
    background: rgba(34,211,238,0.10);
    border: 1px solid rgba(34,211,238,0.35);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-family: var(--mono);
}
.benefit h4 { margin: 0 0 6px; color: #fff; }
.benefit p  { margin: 0; color: var(--text-soft); font-size: 0.95rem; }

/* ===== FLUJO ===== */
.flow {
    display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px;
    counter-reset: step;
}
.flow-step {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 18px 22px;
    text-align: center;
    position: relative;
    transition: border-color .25s, transform .25s;
}
.flow-step:hover { border-color: var(--border-h); transform: translateY(-3px); }
.flow-step::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    position: absolute;
    top: -14px; left: 50%; transform: translateX(-50%);
    width: 44px; height: 28px;
    background: var(--bg);
    border: 1px solid var(--accent);
    color: var(--accent);
    font-family: var(--mono); font-weight: 700; font-size: 0.78rem;
    border-radius: 50px;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 0 16px rgba(34,211,238,0.3);
}
.flow-step h4 { margin: 12px 0 6px; font-size: 1rem; color: #fff; }
.flow-step p  { margin: 0; font-size: 0.85rem; color: var(--text-soft); }

/* ===== CASOS DE ÉXITO ===== */
.testimonial {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius);
    padding: 32px 36px;
    margin-top: 30px;
}
.testimonial-quote { font-size: 1.15rem; font-style: italic; color: #fff; margin: 0 0 18px; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-badge {
    width: 50px; height: 50px;
    background: rgba(34,211,238,0.10);
    border: 1px solid rgba(34,211,238,0.35);
    color: var(--accent); font-family: var(--mono); font-weight: 700;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.testimonial-name strong { color: #fff; display: block; }
.testimonial-name span   { color: var(--text-mute); font-size: 0.88rem; }

/* ===== CONTACTO ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 60px;
    align-items: start;
}
.contact-info { color: var(--text-soft); }
.contact-info ul { list-style: none; padding: 0; margin: 24px 0 0; }
.contact-info li {
    padding: 12px 0;
    display: flex; align-items: center; gap: 14px;
    border-bottom: 1px solid var(--border);
}
.contact-info li:last-child { border-bottom: 0; }
.contact-info-icon {
    width: 40px; height: 40px; border-radius: 10px;
    background: rgba(34,211,238,0.08);
    border: 1px solid rgba(34,211,238,0.25);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.contact-info a { color: #fff; }
.contact-info a:hover { color: var(--accent); }

/* Form */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 32px;
    border-radius: var(--radius);
    backdrop-filter: blur(8px);
}
.form-row { margin-bottom: 16px; }
.form-row label {
    display: block; font-weight: 500;
    color: var(--text-soft);
    margin-bottom: 6px;
    font-size: 0.85rem;
    font-family: var(--mono);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.form-row input,
.form-row textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    background: rgba(0,0,0,0.2);
    color: var(--text);
    border-radius: var(--radius-sm);
    font-size: 0.96rem;
    font-family: var(--sans);
    transition: border-color .2s, box-shadow .2s;
}
.form-row input::placeholder,
.form-row textarea::placeholder { color: var(--text-mute); }
.form-row input:focus,
.form-row textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(34,211,238,0.15);
}
.form-row textarea { min-height: 120px; resize: vertical; }
#contacto-msg {
    margin-top: 14px; padding: 12px 14px;
    border-radius: var(--radius-sm);
    display: none; font-size: 0.92rem;
}
#contacto-msg.ok    { background: rgba(46,204,113,0.10); color: #4ade80; border: 1px solid rgba(46,204,113,0.35); display: block; }
#contacto-msg.err   { background: rgba(255,99,99,0.10);  color: #ff8b8b; border: 1px solid rgba(255,99,99,0.35);  display: block; }

/* ===== FOOTER ===== */
.footer {
    background: #060c1c;
    color: var(--text-soft);
    padding: 60px 0 20px;
    font-size: 0.92rem;
    border-top: 1px solid var(--border);
}
.footer-grid {
    display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px; margin-bottom: 40px;
}
.footer h5 {
    color: #fff; font-family: var(--mono);
    text-transform: uppercase; font-size: 0.8rem;
    letter-spacing: 2px; margin: 0 0 18px;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { padding: 4px 0; }
.footer a { color: var(--text-soft); }
.footer a:hover { color: var(--accent); opacity: 1; }
.footer-brand svg { height: 38px; color: var(--accent); margin-bottom: 16px; display: block; }
.footer-social { display: flex; gap: 10px; margin-top: 14px; }
.footer-social a {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    transition: background .2s, border-color .2s, color .2s;
    color: var(--text-soft);
}
.footer-social a:hover { background: var(--accent); color: #001018; border-color: var(--accent); opacity: 1; }
.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 20px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-mute);
    font-family: var(--mono);
}

/* ===== WHATSAPP FLOATING ===== */
.wa-float {
    position: fixed; bottom: 24px; right: 24px;
    width: 58px; height: 58px;
    border-radius: 50%;
    background: #25d366;
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
    z-index: 999;
    transition: transform .25s;
}
.wa-float:hover { transform: scale(1.1); color: #fff; opacity: 1; }
.wa-float svg { width: 30px; height: 30px; fill: currentColor; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1000px) {
    .hero-grid       { grid-template-columns: 1fr; }
    .hero-mock       { height: 480px; max-width: 480px; margin: 0 auto; }
    .modules         { grid-template-columns: 1fr 1fr; }
    .ecosystem       { grid-template-columns: 1fr; }
    .integrations    { grid-template-columns: 1fr 1fr; }
    .benefits        { grid-template-columns: 1fr; }
    .flow            { grid-template-columns: 1fr 1fr; row-gap: 30px; }
    .stats           { grid-template-columns: 1fr 1fr; }
    .stat            { border-right: 0; border-bottom: 1px solid var(--border); }
    .stat:nth-last-child(-n+2) { border-bottom: 0; }
    .contact-grid    { grid-template-columns: 1fr; gap: 40px; }
    .footer-grid     { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
    .section         { padding: 70px 0; }
    .hero            { padding: 80px 0 100px; }
    .modules         { grid-template-columns: 1fr; }
    .integrations    { grid-template-columns: 1fr; }
    .stats           { grid-template-columns: 1fr; }
    .stat            { border-right: 0; border-bottom: 1px solid var(--border); }
    .stat:last-child { border-bottom: 0; }
    .footer-grid     { grid-template-columns: 1fr; gap: 28px; }
    .navbar-toggle   { display: block; }
    .navbar-menu {
        position: absolute; top: 100%; left: 0; right: 0;
        background: rgba(10, 17, 36, 0.98);
        backdrop-filter: blur(14px);
        flex-direction: column; align-items: stretch;
        padding: 16px 24px 22px; gap: 18px;
        border-bottom: 1px solid var(--border);
        display: none;
    }
    .navbar-menu.is-open { display: flex; }
    .navbar-menu a { padding: 6px 0; }
    .navbar-menu .btn { text-align: center; justify-content: center; }
    .credential      { width: 200px; transform: rotate(-5deg) scale(0.92); }
    .phone           { width: 200px; height: 380px; }
}