:root{
  --green:#2E7D32;
  --green-dark:#20622a;
  --muted:#6b6b6b;
  --bg:#f7fff7;
  --card:#ffffff;
  --glass: rgba(255,255,255,0.7);
}
/* Respect iOS safe area insets and make spacing responsive */
:root{--safe-top: env(safe-area-inset-top); --safe-bottom: env(safe-area-inset-bottom)}
html{font-size:16px}
/* fluid typography */
body{font-size:clamp(15px, 1.6vw, 18px)}
*{box-sizing:border-box}
html,body{height:100%;}
/* Prevent accidental horizontal scroll while preserving visible off-canvas UI */
html, body {overflow-x: hidden;}
body{
  margin:0;
  padding-top:var(--safe-top,0);
  padding-bottom:var(--safe-bottom,0);
  font-family: 'Cairo', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  background:linear-gradient(180deg, #f0fff2 0%, var(--bg) 100%);
  color:#0b2b12;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
}

a{color:inherit;text-decoration:none}

header{
  padding:28px 20px;
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap; /* allow header items to wrap on very narrow screens */
}
.brand{
  display:flex;align-items:center;gap:12px;
  min-width:0; /* allow shrinking without causing overflow */
}
.logo{
  width:56px;height:56px;border-radius:12px;background:linear-gradient(135deg,var(--green),var(--green-dark));
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:20px
}
.brand h1{margin:0;font-size:18px}
.tag{font-size:12px;color:var(--muted)}

main{max-width:1200px;margin:0 auto;padding:20px}

/* Hero */
.hero{
  display:grid;grid-template-columns:1fr 480px;gap:36px;align-items:center;padding:40px 0
}
.hero .lead{padding:8px 0}
.hero h1{
  font-size:clamp(24px, 4.6vw, 38px);margin:0 0 12px 0;color:var(--green-dark);line-height:1.05
}
.hero p{font-size:16px;color:var(--muted);margin:0 0 18px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:14px 18px;border-radius:12px;background:var(--green);color:#fff;font-weight:600;border:none;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease;box-shadow:0 6px 18px rgba(46,125,50,0.18);font-size:1rem;min-height:48px;touch-action:manipulation;-webkit-tap-highlight-color:transparent
}
.btn:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(46,125,50,0.22)}
.btn.secondary{background:#0a0a0a}
.btn svg{width:20px;height:20px;flex-shrink:0}

.hero-visual{
  display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:nowrap; /* keep phone mocks side-by-side */
}
.phone-mock{
  width:320px;max-width:100%;border-radius:22px;overflow:hidden;box-shadow:0 16px 40px rgba(10,20,10,0.12);background:#fff;border:12px solid #e9f7ee
}
.phone-mock img{display:block;width:100%;height:auto}
.phone-mock.small{width:220px;border-radius:18px;border:8px solid #f0fbf0;box-shadow:0 10px 26px rgba(10,20,10,0.08)}
.phone-mock img{display:block;width:100%;height:auto}
.phone-mock.small{width:220px;border-radius:18px;border:8px solid #f0fbf0;box-shadow:0 10px 26px rgba(10,20,10,0.08)}

/* Features */
.features{padding:48px 0}
.features h2{margin:0 0 18px;font-size:26px;color:var(--green-dark)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
/* Use an adaptive grid so cards cannot force horizontal scrolling on small viewports */
.cards{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}
.card{
  background:var(--card);padding:18px;border-radius:12px;display:flex;gap:12px;align-items:flex-start;flex-direction:column;box-shadow:0 8px 22px rgba(10,20,10,0.04);transition:transform .18s ease,box-shadow .18s ease
}
.card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(10,20,10,0.06)}
.card .icon{width:56px;height:56px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--green),#4caf50);color:#fff}
.card h3{margin:6px 0 6px 0;font-size:16px}
.card p{margin:0;color:var(--muted);font-size:14px}

/* How it works */
.how{padding:48px 0}
.steps{display:flex;gap:14px;flex-wrap:wrap}
.step{flex:1;min-width:200px;background:linear-gradient(180deg,rgba(46,125,50,0.04),rgba(46,125,50,0.02));padding:18px;border-radius:12px;display:flex;gap:12px;align-items:center}
.step .icon{width:56px;height:56px;border-radius:12px;background:var(--glass);display:flex;align-items:center;justify-content:center;color:var(--green-dark);font-weight:700}
.step h4{margin:0 0 6px 0}
.step p{margin:0;color:var(--muted);font-size:13px}

/* Testimonials */
.testimonials{padding:48px 0}
.testimonial-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.testimonial-list{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}
.testimonial{background:var(--card);padding:18px;border-radius:12px;box-shadow:0 10px 26px rgba(10,20,10,0.04)}
.testimonial .meta{display:flex;gap:12px;align-items:center}
.avatar{width:56px;height:56px;border-radius:50%;background:#e6f6ea;display:inline-flex;align-items:center;justify-content:center;color:var(--green-dark);font-weight:700}
.quote{margin:12px 0;color:var(--muted)}

/* Final CTA */
.final-cta{padding:40px;background:linear-gradient(90deg,rgba(46,125,50,0.06),rgba(46,125,50,0.02));border-radius:12px;display:flex;flex-direction:column;align-items:center;gap:12px}
.final-cta h2{margin:0;color:var(--green-dark)}
.final-cta p{max-width:720px;text-align:center;margin:0;color:var(--muted)}

.nav-toggle{display:none;background:transparent;border:1px solid rgba(0,0,0,0.06);padding:8px 10px;border-radius:8px;font-size:20px;color:var(--green-dark)}

/* Ensure images and SVGs never overflow their containers */
img, svg{max-width:100%;height:auto;display:block}

/* Make nav wrap gracefully and avoid forcing width */
nav{flex-wrap:wrap}
nav a{white-space:normal}

/* Mobile nav: hide by default and provide a full-width panel when opened */
nav{display:flex;gap:12px}
@media (max-width:720px){
  header{padding:18px 16px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  nav{position:fixed;right:0;left:0;top:calc(56px + var(--safe-top,0));background:linear-gradient(180deg,#fff, #fbfff9);box-shadow:0 10px 40px rgba(10,20,10,0.08);flex-direction:column;padding:18px;display:none;z-index:1200}
  nav.open{display:flex}
  nav a{padding:12px 8px;border-radius:8px}
  .hero{grid-template-columns:1fr;gap:18px}
  .hero h1{font-size:clamp(20px,5.6vw,28px)}
  .cards{grid-template-columns:1fr}
  .testimonial-list{grid-template-columns:1fr}
  /* Keep phone mocks side-by-side on small screens; make primary larger than the small mock */
  .hero-visual{flex-wrap:nowrap;justify-content:center;gap:12px}
  .hero-visual .phone-mock{
    box-sizing:border-box; /* include borders in width calculation */
    flex:0 0 58%;
    max-width:58%;
    width:58%;
  }
  .hero-visual .phone-mock.small{
    box-sizing:border-box;
    flex:0 0 38%;
    max-width:38%;
    width:38%;
  }
}
.socials{display:flex;gap:10px}
.socials a{display:inline-flex;width:36px;height:36px;border-radius:8px;align-items:center;justify-content:center;background:#fff;box-shadow:0 6px 18px rgba(10,20,10,0.04)}

/* Responsive */
@media (max-width:1000px){
  .hero{grid-template-columns:1fr 360px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .testimonial-list{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  header{padding:18px}
  .hero{grid-template-columns:1fr;gap:18px}
  .hero h1{font-size:28px}
  .cards{grid-template-columns:1fr}
  .testimonial-list{grid-template-columns:1fr}
  .phone-mock{justify-self:center}
}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}