:root{
  --bg:#0b1220; --card:#111a2b; --muted:#93a0b8; --text:#e9eef9;
  --accent:#21d4a7; --accent2:#8b5cf6; --border:#1b2942;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica Neue,Arial;
  background:radial-gradient(1200px 800px at 80% -10%, rgba(33,212,167,.18), transparent 40%),
             radial-gradient(900px 700px at -10% 110%, rgba(139,92,246,.18), transparent 40%),
             var(--bg);
  color:var(--text);
}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.nav a.logo{font-weight:900;letter-spacing:.5px}
.nav ul{list-style:none;display:flex;gap:18px;margin:0;padding:0}
.nav a.btn{padding:10px 14px;border-radius:10px;background:linear-gradient(90deg,var(--accent),#22d3ee);color:#081220;font-weight:800}
.header{padding:60px 0 40px;text-align:center}
.header h1{margin:0 0 10px;font-size:clamp(28px,3vw,40px)}
.header p{margin:0;color:var(--muted)}
.grid3{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:860px){.grid3{grid-template-columns:repeat(3,1fr)}}
.card{background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,.0));
  border:1px solid var(--border);border-radius:18px;padding:22px;min-height:180px}
.card h3{margin-top:0}
.footer{border-top:1px solid var(--border);margin-top:40px;padding:30px 0;color:var(--muted);font-size:14px}
.center{text-align:center}
.btn-lg{display:inline-block;padding:14px 18px;border-radius:14px;background:linear-gradient(90deg,var(--accent),#22d3ee);color:#081220;font-weight:900}
/* pricing */
.grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:820px){.grid{grid-template-columns:repeat(3,1fr)}}
.pill{border:1px dashed var(--border);color:var(--muted);padding:10px 12px;border-radius:12px;font-size:13px;text-align:center}
.price{font-size:38px;margin:4px 0 6px;font-weight:800}
.per{font-size:14px;color:var(--muted);margin-left:6px;font-weight:500}
.list{list-style:none;padding:0;margin:12px 0 0;display:grid;gap:8px}
.list li{display:grid;grid-template-columns:20px 1fr;gap:10px;align-items:start;font-size:14px;color:var(--muted)}
.check{width:18px;height:18px;display:inline-grid;place-items:center;border-radius:6px;background:rgba(33,212,167,.14);color:var(--accent);font-weight:900}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.4px;color:#0a0f1a;background:linear-gradient(90deg,var(--accent2),#22d3ee);padding:6px 10px;border-radius:999px;font-weight:700}
.master{outline:2px solid rgba(139,92,246,.55)}
.cta{margin-top:12px;display:grid;gap:10px}
.btn-alt{display:inline-block;text-align:center;padding:13px 16px;border-radius:12px;font-weight:800;border:1px solid var(--border)}
hr{border:0;border-top:1px solid var(--border);margin:24px 0}
input,textarea{width:100%;padding:12px;border-radius:10px;border:1px solid var(--border);background:#0f172a;color:var(--text)}
label{font-size:14px;color:var(--muted)}
form .row{display:grid;gap:14px}
@media(min-width:720px){form .row{grid-template-columns:1fr 1fr}}
.alert{background:#0f172a;border:1px solid var(--border);padding:12px;border-radius:12px;color:var(--muted);font-size:14px}


/* --- Mobile & Stability Fixes (2025-09-12) --- */
/* Prevent horizontal scroll on narrow screens and make media fluid */
html, body { overflow-x: hidden; }
img, svg, video { max-width: 100%; height: auto; display: block; }

/* Improve focus accessibility */
:focus-visible { outline: 2px solid var(--accent2); outline-offset: 2px; border-radius: 6px; }

/* Navigation wraps cleanly on small screens */
.nav { gap: 10px; flex-wrap: wrap; }
.nav a.logo { flex: 1 1 100%; }
.nav ul { flex: 1 1 100%; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.nav a.btn { white-space: nowrap; }

/* Reduce spacings and font sizes for tighter phones */
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .header { padding: 36px 0 24px; }
  .header h1 { font-size: clamp(22px, 6vw, 28px); line-height: 1.25; }
  .header p { font-size: 14px; }
  .grid3, .grid { gap: 14px; }
  .card { padding: 16px; }
}

/* Prevent long, unbroken strings from stretching layout */
h1, h2, h3, p, a, .btn, .pill { overflow-wrap: anywhere; }

/* --- Anti margin-collapse / topo com “salto” (global) --- */
.header, .container { display: flow-root; }         /* impede margens do 1º filho “vazarem” */
.header > *:first-child { margin-top: 0; }          /* zera margem do primeiro filho do header */
main > *:first-child { margin-top: 0; }             /* segurança para quando houver <main> */
/* Anti margin-collapse também no <header> semântico */
header { display: flow-root; }
header > *:first-child { margin-top: 0; }

/* (mantém os fixes já aplicados à .header e .container) */