:root {
  --primary-color: #25d366; /* WhatsApp green */
  --secondary-color: #f4f4f9;
  --text-color: #333;
}

/* Reset / base */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: Arial, sans-serif; }
body { background: var(--secondary-color); color: var(--text-color); line-height: 1.6; }

/* Header */
header {
  background: #fff;
  padding: 15px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 4px rgba(0,0,0,.1);
}
header .logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text-color); font-weight: bold; font-size: 1.2rem; }
header .logo img { height: 40px; width: auto; }
header .logo .light { opacity: .7; }

/* Hero with background image + overlay */
.hero {
  text-align: center;
  padding: 80px 20px;
  background: url('assets/background.jpg') no-repeat center center/cover;
  color: #fff;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background: rgba(0,0,0,.5); /* overlay for readability */
  z-index: 1;
}
.hero * { position: relative; z-index: 2; }
.hero-logo { height: 80px; width: auto; margin-bottom: 20px; }
.hero h1 { font-size: 2.2rem; margin-bottom: 10px; }
.hero p { font-size: 1.2rem; margin-bottom: 20px; }
.cta-btn {
  display: inline-block; padding: 12px 25px; background: var(--primary-color); color: #fff;
  border-radius: 30px; text-decoration: none; font-weight: bold; transition: background .3s ease;
}
.cta-btn:hover { background: #1ebe5b; }

/* Services */
.services { padding: 60px 20px; text-align: center; background: #fff; }
.services h2 { font-size: 2rem; margin-bottom: 40px; color: var(--text-color); }
.service-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px; max-width: 1100px; margin: 0 auto;
}
.service-card {
  background: var(--secondary-color); padding: 25px; border-radius: 12px;
  box-shadow: 0 2px 6px rgba(0,0,0,.08); transition: transform .3s ease;
}
.service-card:hover { transform: translateY(-5px); }
.service-card h3 { font-size: 1.3rem; margin-bottom: 10px; color: var(--primary-color); }
.service-card p { font-size: 1rem; color: #555; }

/* Footer */
.site-footer { background: #fff; text-align: center; padding: 24px 12px; color: #6b7280; }

/* WhatsApp Floating Button */
.whatsapp-float {
  position: fixed; width: 60px; height: 60px; bottom: 40px; right: 40px;
  background: var(--primary-color); color: #fff; border-radius: 50px;
  text-align: center; font-size: 30px; box-shadow: 2px 2px 3px #999;
  z-index: 100; display: flex; align-items: center; justify-content: center;
  text-decoration: none;
}