/* =========================================================
   Front-end styles — landing page + WhatsApp widget
   ========================================================= */
:root{
  --green:#25D366;
  --teal:#128C7E;
  --ink:#0f172a;
  --muted:#64748b;
  --line:#e5e7eb;
  --bg:#f8fafc;
  --card:#ffffff;
  --radius:16px;
  --shadow:0 10px 40px rgba(15,23,42,.08);
  --shadow-lg:0 24px 60px rgba(15,23,42,.16);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
a{text-decoration:none;color:inherit}
.container{width:min(1140px,92%);margin:0 auto}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;border-radius:12px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:.18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;box-shadow:0 8px 20px rgba(37,211,102,.28)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 12px 26px rgba(37,211,102,.36)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:#cbd5e1;background:#f8fafc}
.btn-light{background:#fff;color:var(--teal)}
.btn-light:hover{background:#f0fdf4}
.btn-sm{padding:9px 14px;font-size:14px;border-radius:10px}
.btn-lg{padding:15px 26px;font-size:16px}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:40;
  background:rgba(255,255,255,.86);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}
.brand-mark{
  width:38px;height:38px;display:grid;place-items:center;border-radius:12px;
  background:linear-gradient(135deg,var(--green),var(--teal));font-size:18px;
  box-shadow:0 6px 16px rgba(37,211,102,.3);
}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px;color:var(--muted);font-weight:500}
.nav-links a:not(.btn):hover{color:var(--ink)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 400px at 85% -10%,rgba(37,211,102,.18),transparent 60%),
    radial-gradient(700px 400px at 0% 0%,rgba(18,140,126,.12),transparent 55%),
    #fff;
  border-bottom:1px solid var(--line);
}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:80px 0 90px}
.pill{
  display:inline-block;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:#ecfdf5;color:#047857;border:1px solid #a7f3d0;margin-bottom:18px;
}
.hero h1{font-size:clamp(30px,4.4vw,52px);line-height:1.12;margin:0 0 18px;letter-spacing:-.02em}
.grad{background:linear-gradient(135deg,var(--green),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:18px;color:var(--muted);margin:0 0 28px;max-width:520px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.trust{list-style:none;padding:0;margin:0;display:flex;gap:22px;flex-wrap:wrap;font-size:14px;color:var(--muted)}

/* Phone mock */
.hero-art{position:relative;display:grid;place-items:center;min-height:420px}
.phone{
  position:relative;z-index:2;width:270px;border-radius:34px;background:#0f172a;
  padding:10px;box-shadow:var(--shadow-lg);animation:float 5s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.phone-notch{width:90px;height:20px;background:#0f172a;border-radius:0 0 14px 14px;margin:-10px auto 4px;position:relative;z-index:3}
.phone-screen{background:#e5ddd5;border-radius:26px;overflow:hidden}
.chat-head{display:flex;align-items:center;gap:10px;padding:12px 14px;background:#128C7E;color:#fff}
.chat-avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-size:16px}
.chat-name{font-weight:600;font-size:14px;line-height:1.2}
.chat-sub{font-size:11px;opacity:.8}
.chat-body{padding:14px 12px;display:flex;flex-direction:column;gap:8px;min-height:250px;
  background-image:radial-gradient(rgba(0,0,0,.04) 1px,transparent 1px);background-size:14px 14px}
.bubble{max-width:82%;padding:8px 11px;border-radius:12px;font-size:12.5px;line-height:1.45;box-shadow:0 1px 1px rgba(0,0,0,.06)}
.bubble.in{background:#fff;align-self:flex-start;border-top-left-radius:3px}
.bubble.out{background:#dcf8c6;align-self:flex-end;border-top-right-radius:3px}
.bubble.typing{display:flex;gap:4px;align-items:center;background:#fff;align-self:flex-start}
.bubble.typing span{width:6px;height:6px;border-radius:50%;background:#94a3b8;animation:blink 1.2s infinite}
.bubble.typing span:nth-child(2){animation-delay:.2s}
.bubble.typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.25}30%{opacity:1}}
.blob{position:absolute;border-radius:50%;filter:blur(50px);opacity:.5;z-index:1}
.blob-1{width:220px;height:220px;background:var(--green);top:0;right:10%}
.blob-2{width:180px;height:180px;background:#38bdf8;bottom:0;left:5%}

/* ---------- Sections ---------- */
.section{padding:84px 0}
.section-alt{background:#fff;border-block:1px solid var(--line)}
.section-head{text-align:center;max-width:620px;margin:0 auto 46px}
.section-head h2{font-size:clamp(26px,3.4vw,38px);margin:0 0 10px;letter-spacing:-.01em}
.section-head p{color:var(--muted);margin:0;font-size:17px}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#dbe3ee}
.card-ico{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:24px;
  background:linear-gradient(135deg,#ecfdf5,#dbeafe);margin-bottom:16px;
}
.card h3{margin:0 0 8px;font-size:19px}
.card p{margin:0;color:var(--muted);font-size:15px}

.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:s}
.steps li{display:flex;gap:16px;align-items:flex-start;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.step-no{
  flex:none;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-weight:700;color:#fff;background:linear-gradient(135deg,var(--green),var(--teal));
}
.steps b{display:block;margin-bottom:4px;font-size:16px}
.steps p{margin:0;color:var(--muted);font-size:14.5px}

/* ---------- CTA ---------- */
.cta{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:linear-gradient(135deg,var(--teal),#0e7490);color:#fff;
  border-radius:24px;padding:44px 48px;box-shadow:var(--shadow);
}
.cta h2{margin:0 0 6px;font-size:28px}
.cta p{margin:0;opacity:.9}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);background:#fff;padding:26px 0;color:var(--muted);font-size:14px}
.footer-inner{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* =========================================================
   Floating WhatsApp widget
   ========================================================= */
.wa-fab{
  position:fixed;right:24px;bottom:24px;z-index:60;
  width:60px;height:60px;border-radius:50%;border:0;cursor:pointer;
  background:var(--accent,#25D366);
  display:grid;place-items:center;
  box-shadow:0 10px 28px rgba(0,0,0,.25);
  transition:transform .2s ease, box-shadow .2s ease;
}
.wa-fab:hover{transform:scale(1.08)}
.wa-fab::before{
  content:"";position:absolute;inset:0;border-radius:50%;
  background:var(--accent,#25D366);opacity:.55;z-index:-1;
  animation:pulse 2.2s ease-out infinite;
}
@keyframes pulse{0%{transform:scale(1);opacity:.5}70%{transform:scale(1.7);opacity:0}100%{opacity:0}}

/* Panel */
.wa-panel{
  position:fixed;right:24px;bottom:100px;z-index:61;
  width:min(360px,calc(100vw - 32px));
  background:#fff;border-radius:18px;overflow:hidden;
  box-shadow:var(--shadow-lg);border:1px solid var(--line);
  display:flex;flex-direction:column;
  opacity:0;transform:translateY(14px) scale(.97);pointer-events:none;
  transition:.22s cubic-bezier(.2,.8,.3,1);
}
.wa-panel.open{opacity:1;transform:none;pointer-events:auto}
.wa-head{
  display:flex;align-items:center;gap:12px;padding:16px;
  background:linear-gradient(135deg,var(--accent,#25D366),#0e7490);color:#fff;
}
.wa-avatar{width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.22);display:grid;place-items:center;font-size:18px;flex:none}
.wa-head-text{flex:1;min-width:0}
.wa-title{font-weight:700;font-size:15.5px;line-height:1.3}
.wa-sub{font-size:12px;opacity:.9}
.wa-close{background:rgba(255,255,255,.16);border:0;color:#fff;width:30px;height:30px;border-radius:8px;cursor:pointer;font-size:13px;flex:none}
.wa-close:hover{background:rgba(255,255,255,.28)}
.wa-body{
  padding:18px 16px;min-height:150px;max-height:300px;overflow-y:auto;
  background:#e5ddd5;
  background-image:radial-gradient(rgba(0,0,0,.04) 1px,transparent 1px);background-size:14px 14px;
  display:flex;flex-direction:column;gap:10px;
}
.wa-day{align-self:center;background:rgba(255,255,255,.75);color:#64748b;font-size:11px;padding:3px 12px;border-radius:8px}
.wa-bubble{background:#fff;padding:10px 13px;border-radius:12px;border-top-left-radius:3px;font-size:14px;max-width:88%;box-shadow:0 1px 1px rgba(0,0,0,.06)}
.wa-bubble.mine{align-self:flex-end;background:#dcf8c6;border-radius:12px;border-top-right-radius:3px}
.wa-foot{padding:12px;background:#f0f2f5;border-top:1px solid var(--line)}
.wa-foot textarea{
  width:100%;resize:none;border:1px solid var(--line);border-radius:10px;padding:10px 12px;
  font:inherit;font-size:14px;outline:none;background:#fff;
}
.wa-foot textarea:focus{border-color:var(--accent,#25D366);box-shadow:0 0 0 3px rgba(37,211,102,.15)}
.wa-send{
  margin-top:8px;width:100%;border:0;cursor:pointer;
  background:var(--accent,#25D366);color:#fff;font-weight:600;font-size:14.5px;
  padding:11px;border-radius:10px;display:flex;align-items:center;justify-content:center;gap:8px;
  transition:.15s;
}
.wa-send:hover{filter:brightness(1.06)}
.wa-note{font-size:11.5px;color:var(--muted);text-align:center;margin-top:8px}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr;text-align:center;padding:56px 0 70px}
  .lead{margin-inline:auto}
  .hero-actions,.trust{justify-content:center}
  .hero-art{min-height:360px}
  .grid-3,.steps{grid-template-columns:1fr}
  .nav-links a:not(.btn){display:none}
  .cta{flex-direction:column;text-align:center}
  .section{padding:60px 0}
}
@media(max-width:420px){
  .wa-fab{right:16px;bottom:16px}
  .wa-panel{right:8px;bottom:88px}
  .btn-lg{width:100%;justify-content:center}
}