:root{
  --wa:#25D366; --wa-deep:#128C7E; --ink:#0D1B17; --night:#06241D; --muted:#5B6B65;
  --bg:#F3F8F5; --card:#fff; --line:#DCE8E2; --bubble-out:#D9FDD3;
  --font-head:'Manrope',system-ui,sans-serif; --font-body:'Golos Text',system-ui,sans-serif;
  --r-lg:28px; --r-md:16px; --ease:cubic-bezier(.22,.8,.3,1);
}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:var(--font-body);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--font-head);font-weight:800;letter-spacing:-.02em;line-height:1.12}
h2{font-size:clamp(1.8rem,3.4vw,2.7rem)}
h3{font-size:1.2rem}
a:focus-visible,button:focus-visible{outline:3px solid var(--wa);outline-offset:3px}

.btn-wa{background:var(--wa);color:var(--night);font-weight:600;border:0;border-radius:999px;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.btn-wa:hover{background:#3DE07D;color:var(--night);transform:translateY(-2px);box-shadow:0 10px 30px -8px rgba(37,211,102,.7)}
.btn-ghost{color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:999px;font-weight:500}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}

/* Navbar */
#nav{padding:.9rem 0;transition:background .3s,padding .3s,box-shadow .3s}
#nav.scrolled{background:rgba(6,36,29,.92);backdrop-filter:blur(12px);padding:.5rem 0;box-shadow:0 6px 24px rgba(0,0,0,.2)}
#nav .navbar-brand{font-family:var(--font-head);font-weight:800}
#nav .nav-link{color:rgba(255,255,255,.8);font-weight:500}
#nav .nav-link:hover{color:var(--wa)}
@media(max-width:991.98px){#nav .navbar-collapse{background:var(--night);border-radius:var(--r-md);padding:1rem;margin-top:.7rem}}

/* Hero */
.hero{position:relative;color:#fff;padding:9rem 0 6rem;background:var(--night) url(../images/hero-bg.svg) center/cover no-repeat;overflow:hidden}
.hero h1{font-size:clamp(2.4rem,6vw,4.4rem);margin-bottom:1.2rem}
.hero .lead{color:rgba(255,255,255,.78);max-width:34rem;margin-bottom:2rem}
.hero-kicker{display:inline-flex;gap:.5rem;align-items:center;padding:.35rem .9rem;border-radius:999px;background:rgba(37,211,102,.14);color:var(--wa);font-weight:500;font-size:.9rem}
.hero-meta{margin:1.6rem 0 0;color:rgba(255,255,255,.6);font-size:.95rem}

/* Phone chat */
.phone{max-width:340px;margin:0 auto;background:#0B141A;border:8px solid #1c2b27;border-radius:42px;overflow:hidden;box-shadow:0 40px 80px -20px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.08);transform:rotate(2deg)}
.phone-top{display:flex;align-items:center;gap:.7rem;padding:1rem;background:#1F2C34}
.phone-top small{display:block;color:#8FA3AD;font-size:.75rem;line-height:1}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--wa-deep);display:grid;place-items:center;font-weight:700}
.chat{min-height:360px;padding:1rem;display:flex;flex-direction:column;gap:.55rem;background:#0B141A}
.msg{max-width:80%;padding:.5rem .8rem;border-radius:14px;font-size:.92rem;line-height:1.4;opacity:0;transform:translateY(10px) scale(.96);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.msg.show{opacity:1;transform:none}
.msg.in{background:#202C33;border-top-left-radius:4px;align-self:flex-start}
.msg.out{background:#005C4B;border-top-right-radius:4px;align-self:flex-end}
.msg span{display:block;text-align:right;font-size:.65rem;color:#8FA3AD;margin-top:.15rem}
.msg span i{color:#53BDEB}
.typing{display:flex;gap:4px;padding:.4rem 1rem 1rem;background:#0B141A;min-height:30px}
.typing i{width:7px;height:7px;border-radius:50%;background:#8FA3AD;animation:dot 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes dot{0%,60%,100%{opacity:.3;transform:none}30%{opacity:1;transform:translateY(-4px)}}

/* Stats */
.stats{background:var(--night);color:#fff;padding:3.5rem 0;border-top:1px solid rgba(255,255,255,.08)}
.stat-num{font-family:var(--font-head);font-weight:800;font-size:clamp(2rem,4vw,3rem);color:var(--wa)}
.stats p{margin:0;color:rgba(255,255,255,.65)}

/* Sections */
.section{padding:6rem 0}
.section-alt{background:#E8F2ED}
.section-lead{color:var(--muted);font-size:1.1rem;max-width:40rem}
.section-lead.mx-auto{margin-bottom:2rem}
.section-dark{background:var(--night);color:#fff}
.section-dark .section-lead{color:rgba(255,255,255,.72)}

/* Timeline */
.timeline{position:relative;max-width:760px;margin:0 auto}
.timeline::before{content:"";position:absolute;left:92px;top:8px;bottom:8px;width:2px;background:var(--line)}
.tl-item{display:flex;gap:2rem;padding-bottom:2.2rem;position:relative}
.tl-year{flex:0 0 76px;text-align:right;font-family:var(--font-head);font-weight:800;color:var(--wa-deep);padding-top:.1rem}
.tl-item::before{content:"";position:absolute;left:86px;top:.55rem;width:14px;height:14px;border-radius:50%;background:var(--wa);border:3px solid var(--bg);box-shadow:0 0 0 2px var(--wa)}
.tl-body{padding-left:1.2rem}
.tl-body p{color:var(--muted);margin:.4rem 0 0}
@media(max-width:575.98px){.timeline::before{left:6px}.tl-item{flex-direction:column;gap:.3rem;padding-left:2rem}.tl-year{text-align:left;flex:none}.tl-item::before{left:0}.tl-body{padding-left:0}}

/* Cards */
.feature,.biz{height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:2rem;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.feature:hover,.biz:hover{transform:translateY(-6px);box-shadow:0 24px 40px -24px rgba(6,36,29,.35)}
.feature i,.biz i{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;background:var(--night);color:var(--wa);font-size:1.5rem;margin-bottom:1.2rem}
.feature p,.biz p{color:var(--muted);margin:.5rem 0 0}
.biz{border-radius:var(--r-md);border-left:4px solid var(--wa)}

/* Security */
.check-list{list-style:none;padding:0;margin:1.8rem 0 0;display:grid;gap:.9rem}
.check-list li{display:flex;gap:.8rem;color:rgba(255,255,255,.88)}
.check-list i{color:var(--wa);margin-top:.15rem}
.float-img{max-width:380px;animation:float 6s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-14px)}}

/* FAQ */
.accordion{--bs-accordion-border-color:var(--line);--bs-accordion-btn-focus-box-shadow:0 0 0 .2rem rgba(37,211,102,.3);--bs-accordion-active-bg:#fff;--bs-accordion-active-color:var(--ink);--bs-accordion-border-radius:var(--r-md)}
.accordion-item{margin-bottom:.8rem;border-radius:var(--r-md)!important;overflow:hidden;border:1px solid var(--line)}
.accordion-button{font-family:var(--font-head);font-weight:700;padding:1.2rem 1.4rem}
.accordion-body{color:var(--muted)}

/* CTA + footer */
.cta{padding:6rem 0;background:linear-gradient(135deg,var(--wa-deep),var(--night));color:#fff}
.cta .section-lead{color:rgba(255,255,255,.8)}
.footer{background:var(--night);color:rgba(255,255,255,.65);padding:2rem 0}
.footer small{max-width:34rem;text-align:center}
@media(min-width:768px){.footer small{text-align:right}}

/* Back to top */
.to-top{position:fixed;right:1.2rem;bottom:1.2rem;width:48px;height:48px;border-radius:50%;border:0;background:var(--wa);color:var(--night);font-size:1.3rem;box-shadow:0 10px 25px -6px rgba(0,0,0,.4);opacity:0;visibility:hidden;transform:translateY(12px);transition:.3s var(--ease);z-index:1030}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:#3DE07D}

/* Scroll reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.visible{opacity:1;transform:none}

@media(max-width:991.98px){.hero{padding:7.5rem 0 4rem}.section{padding:4.5rem 0}.phone{transform:none}}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important}
  .reveal,.msg{opacity:1;transform:none}
}