*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
:root{
  --green:#16a34a;--green-dark:#15803d;--green-light:#dcfce7;--green-mid:#22c55e;
  --bg:#f8fafc;--bg2:#f1f5f9;--bg3:#e2e8f0;--card:#ffffff;
  --border:#e2e8f0;--text:#0f172a;--muted:#64748b;
  --orange:#ea580c;--red:#dc2626;--blue:#0284c7;
  --radius:16px;--shadow:0 4px 24px rgba(0,0,0,.08);
}
html{scroll-behavior:smooth;}
body{font-family:'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden;}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(248,250,252,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:14px 24px;display:flex;align-items:center;justify-content:space-between;}
.logo{font-weight:800;font-size:1.1rem;color:var(--green);letter-spacing:-.02em;}
.logo span{color:var(--text);}
nav a{color:var(--muted);font-size:.85rem;text-decoration:none;transition:color .2s;}
nav a:hover{color:var(--green);}
.nav-links{display:flex;gap:24px;}

/* HERO */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:100px 20px 60px;position:relative;overflow:hidden;background:linear-gradient(160deg,#f0fdf4 0%,#f8fafc 50%,#eff6ff 100%);}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 50% at 50% 20%,rgba(34,197,94,.12) 0%,transparent 70%);pointer-events:none;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--green-light);border:1px solid rgba(22,163,74,.3);border-radius:20px;padding:6px 16px;font-size:.82rem;font-weight:600;color:var(--green);margin-bottom:24px;letter-spacing:.04em;}
.hero h1{font-size:clamp(2rem,5vw,3.4rem);font-weight:900;line-height:1.1;margin-bottom:20px;max-width:720px;}
.hero h1 .accent{color:var(--green);}
.hero p{font-size:1.05rem;color:var(--muted);max-width:560px;margin:0 auto 36px;line-height:1.7;}
.hero-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;margin-bottom:40px;}
.stat{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 24px;text-align:center;box-shadow:var(--shadow);}
.stat .val{font-size:1.6rem;font-weight:800;color:var(--green);}
.stat .lbl{font-size:.78rem;color:var(--muted);margin-top:2px;}
.btn-primary{background:var(--green);color:#fff;border:none;border-radius:50px;padding:14px 32px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s;box-shadow:0 4px 20px rgba(22,163,74,.3);}
.btn-primary:hover{background:var(--green-dark);transform:translateY(-2px);box-shadow:0 8px 30px rgba(22,163,74,.4);}
.scroll-hint{margin-top:48px;color:var(--muted);font-size:.8rem;animation:bounce 2s infinite;}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* SECTIONS */
section{padding:80px 20px;}
.bg-alt{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.bg-alt2{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.container{max-width:1000px;margin:0 auto;}
.section-label{font-size:.78rem;font-weight:700;color:var(--green);text-transform:uppercase;letter-spacing:.1em;margin-bottom:10px;}
.section-title{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:800;margin-bottom:16px;line-height:1.2;}
.section-sub{color:var(--muted);font-size:.95rem;line-height:1.7;max-width:560px;}

/* STEPS */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-top:40px;}
.step-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;position:relative;overflow:hidden;transition:border-color .3s,box-shadow .3s;box-shadow:var(--shadow);}
.step-card:hover{border-color:var(--green);box-shadow:0 8px 32px rgba(22,163,74,.12);}
.step-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--green),var(--green-mid));}
.step-num{font-size:2.5rem;font-weight:900;color:rgba(22,163,74,.15);line-height:1;margin-bottom:12px;}
.step-card h3{font-size:1rem;font-weight:700;margin-bottom:8px;}
.step-card p{font-size:.85rem;color:var(--muted);line-height:1.6;}

/* BENEFITS */
.benefits-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-top:40px;}
.benefit{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;display:flex;gap:16px;align-items:flex-start;transition:border-color .3s,transform .3s,box-shadow .3s;box-shadow:var(--shadow);}
.benefit:hover{border-color:var(--green);transform:translateY(-3px);box-shadow:0 12px 32px rgba(22,163,74,.1);}
.benefit .ico{font-size:1.8rem;flex-shrink:0;}
.benefit h3{font-size:.95rem;font-weight:700;margin-bottom:6px;}
.benefit p{font-size:.83rem;color:var(--muted);line-height:1.6;}

/* GRAPH */
.graph-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin-top:32px;box-shadow:var(--shadow);}
.graph-controls{display:flex;flex-wrap:wrap;gap:24px;margin-bottom:28px;align-items:flex-end;}
.slider-group{flex:1;min-width:200px;}
.slider-group label{display:block;font-size:.82rem;font-weight:600;color:var(--muted);margin-bottom:8px;}
.slider-group .slider-val{color:var(--green);font-weight:700;}
.slider-source{font-size:.65rem;color:var(--muted);margin-top:6px;}
input[type=range]{width:100%;accent-color:var(--green);height:6px;border-radius:3px;cursor:pointer;}
.graph-legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px;}
.leg{display:flex;align-items:center;gap:8px;font-size:.82rem;color:var(--muted);}
.leg-dot{width:12px;height:12px;border-radius:50%;flex-shrink:0;}
.graph-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-top:20px;}
.summary-card{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:14px;text-align:center;}
.summary-card .s-val{font-size:1.2rem;font-weight:800;}
.summary-card .s-lbl{font-size:.75rem;color:var(--muted);margin-top:3px;}
.summary-card.green .s-val{color:var(--green);}
.summary-card.red .s-val{color:var(--red);}
.summary-card.orange .s-val{color:var(--orange);}
.summary-card.blue .s-val{color:var(--blue);}

/* EXPERT MARKER */
#expert-marker{position:absolute;bottom:-28px;transform:translateX(-50%);background:#ea580c;color:#fff;font-size:.62rem;font-weight:700;border-radius:6px;padding:1px 5px;white-space:nowrap;pointer-events:none;}
.marker-arrow{position:absolute;top:-5px;left:50%;transform:translateX(-50%);width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:5px solid #ea580c;}
/* TRUST */
.trust-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-top:40px;}
.trust-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow);transition:border-color .3s,transform .3s;}
.trust-card:hover{border-color:var(--green);transform:translateY(-3px);}
.trust-card .ico{font-size:2rem;margin-bottom:12px;}
.trust-card h3{font-size:.95rem;font-weight:700;margin-bottom:6px;}
.trust-card p{font-size:.82rem;color:var(--muted);line-height:1.6;}

/* FAQ */
.faq{margin-top:36px;}
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{width:100%;background:none;border:none;color:var(--text);text-align:left;padding:18px 0;font-size:.95rem;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;}
.faq-q .arrow{color:var(--green);font-size:1.1rem;transition:transform .3s;flex-shrink:0;}
.faq-q.open .arrow{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;font-size:.88rem;color:var(--muted);line-height:1.7;}
.faq-a.open{max-height:200px;padding-bottom:16px;}

/* FLOATING BAR */
.floating-bar{position:fixed;bottom:0;left:0;right:0;z-index:200;background:rgba(255,255,255,.97);backdrop-filter:blur(16px);border-top:2px solid var(--green);padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;transform:translateY(100%);transition:transform .4s cubic-bezier(.4,0,.2,1);box-shadow:0 -8px 40px rgba(0,0,0,.1);}
.floating-bar.visible{transform:translateY(0);}
.float-text{font-size:.9rem;font-weight:600;color:var(--text);}
.float-text span{color:var(--green);}
.float-sub{font-size:.78rem;color:var(--muted);margin-top:2px;}
.btn-float{background:var(--green);color:#fff;border:none;border-radius:50px;padding:12px 24px;font-size:.9rem;font-weight:700;cursor:pointer;white-space:nowrap;transition:all .2s;box-shadow:0 4px 16px rgba(22,163,74,.3);}
.btn-float:hover{background:var(--green-dark);transform:translateY(-1px);}
.float-close{background:none;border:none;color:var(--muted);cursor:pointer;font-size:1.2rem;flex-shrink:0;transition:color .2s;}
.float-close:hover{color:var(--text);}

/* FOOTER */
footer{background:var(--bg2);border-top:1px solid var(--border);padding:32px 20px;text-align:center;color:var(--muted);font-size:.82rem;}
footer strong{color:var(--green);}

/* RESPONSIVE */
@media(max-width:600px){
   .nav-links{display:none;}
  .graph-controls{flex-direction:column;}
  .floating-bar{flex-wrap:wrap;}
  #expert-marker{display:none;}
  .slider-group{width:100%;min-width:100%;}
input[type=range]{width:100%;display:block;}
  
}