:root {
  --navy: #1f2d3d;
  --blue: #2f74c0;
  --blue-dark: #1f4e8c;
  --gold: #c9a227;
  --wa: #25d366;
  --wa-dark: #1da851;
  --bg: #ffffff;
  --bg-alt: #f4f7fb;
  --text: #2a3644;
  --muted: #6a7683;
  --border: #e2e8f0;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(31, 45, 61, .08);
  --max: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
h1, h2, h3, h4 { color: var(--navy); line-height: 1.2; margin: 0 0 .5em; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 10px; font-weight: 600; border-radius: 999px;
  padding: 12px 22px; cursor: pointer; border: 2px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-wa { background: var(--wa); color: #fff; box-shadow: 0 8px 20px rgba(37, 211, 102, .35); }
.btn-wa:hover { background: var(--wa-dark); }
.btn-ghost { background: transparent; color: var(--navy); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-lg { padding: 15px 28px; font-size: 1.05rem; }
.btn-xl { padding: 18px 34px; font-size: 1.15rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 24px; padding: 12px 20px; }
.brand img { height: 44px; width: auto; }
.main-nav { margin-left: auto; display: flex; gap: 26px; }
.main-nav a { color: var(--navy); font-weight: 500; }
.main-nav a:hover { color: var(--blue); }
.header-cta { padding: 10px 18px; }

/* Hero */
.hero {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(47, 116, 192, .12), transparent),
    var(--bg-alt);
  padding: 64px 0 72px;
}
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.eyebrow {
  display: inline-block; background: rgba(47, 116, 192, .12); color: var(--blue-dark);
  font-weight: 600; font-size: .85rem; padding: 6px 14px; border-radius: 999px; margin-bottom: 16px;
}
.hero h1 { font-size: 2.6rem; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 34ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 26px 0 22px; }
.hero-trust { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--navy); font-weight: 500; }
.hero-media img { border-radius: 20px; box-shadow: var(--shadow); width: 100%; height: auto; object-fit: cover; }

/* WhatsApp band */
.wa-band {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  color: #fff; text-align: center; padding: 56px 0;
}
.wa-band-dark { background: linear-gradient(135deg, #14304f, var(--blue-dark)); }
.wa-band h2 { color: #fff; font-size: 2rem; }
.wa-band p { color: rgba(255, 255, 255, .9); margin: 0 auto 26px; max-width: 56ch; }
.wa-band-inner { display: flex; flex-direction: column; align-items: center; }

/* Sections */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section-title { font-size: 2rem; text-align: center; }
.section-intro { text-align: center; color: var(--muted); max-width: 70ch; margin: 0 auto 44px; }

/* Services */
.services { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.service {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 22px; box-shadow: var(--shadow); transition: transform .18s ease;
}
.service:hover { transform: translateY(-4px); }
.service-ic {
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px; border-radius: 14px;
  background: rgba(47, 116, 192, .1); color: var(--blue-dark); margin-bottom: 16px;
}
.service-ic svg { width: 28px; height: 28px; display: block; }
.service h3 { font-size: 1.1rem; }
.service p { color: var(--muted); margin: 0; font-size: .96rem; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 22px; box-shadow: var(--shadow);
}
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  color: #fff; font-weight: 700; margin-bottom: 14px;
}
.step h3 { font-size: 1.15rem; }
.step p { color: var(--muted); margin: 0; }

/* Certificates */
.certs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cert {
  display: block; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  transition: transform .2s ease;
}
.cert:hover { transform: translateY(-4px); }
.cert img { width: 100%; height: auto; object-fit: contain; background: #fff; }

/* Reviews */
.reviews { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.review {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow);
}
.review-head { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.avatar { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }
.review-head strong { display: block; color: var(--navy); }
.stars { color: var(--gold); letter-spacing: 2px; }
.review p { margin: 0; color: var(--text); }

/* Footer */
.site-footer { background: #14212f; color: #c9d4df; padding: 54px 0 22px; }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1.4fr; gap: 34px; }
.footer-brand img { filter: brightness(0) invert(1); height: 44px; margin-bottom: 14px; }
.footer-brand p, .footer-note p { color: #9fb0be; margin: 0; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { color: #c9d4df; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 34px; padding-top: 18px; text-align: center; color: #8497a6; font-size: .9rem; }

/* Floating WhatsApp */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 60;
  width: 62px; height: 62px; border-radius: 50%;
  background: var(--wa); display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px rgba(37, 211, 102, .5);
  animation: wa-pulse 2.4s infinite;
}
.wa-float:hover { background: var(--wa-dark); }
@keyframes wa-pulse {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, .5); }
  70% { box-shadow: 0 0 0 16px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Legal pages */
.legal { padding: 56px 0 72px; }
.legal .container { max-width: 860px; }
.legal h1 { font-size: 2.2rem; margin-bottom: 6px; }
.legal .updated { color: var(--muted); margin-bottom: 30px; }
.legal h2 { font-size: 1.35rem; margin-top: 34px; }
.legal p, .legal li { color: var(--text); }
.legal ul { padding-left: 20px; }
.back-home { display: inline-block; margin-bottom: 24px; font-weight: 600; }

/* Responsive */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-media { order: -1; }
  .lead { max-width: none; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .services { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .main-nav { display: none; }
  .hero h1 { font-size: 2rem; }
  .certs { grid-template-columns: 1fr; }
  .services { grid-template-columns: 1fr; }
  .reviews { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .section { padding: 54px 0; }
}