*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --accent:#1a73e8;
  --accent-hover:#1557b0;
  --bg:#ffffff;
  --bg-alt:#f7f8fa;
  --text:#1a1a2e;
  --text-muted:#5f6368;
  --border:#e0e0e0;
  --radius:8px;
  --radius-lg:12px;
  --shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.06);
  --shadow-lg:0 4px 12px rgba(0,0,0,.1);
  --max-w:960px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;font-size:16px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{display:block;max-width:100%}

/* Layout */
.container{max-width:var(--max-w);margin:0 auto;padding:0 20px}

/* Nav */
.nav{position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);z-index:100}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:56px}
.nav-brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:18px;color:var(--text)}
.nav-brand img,.nav-brand svg{width:32px;height:32px}
.nav-links{display:flex;gap:20px;font-size:14px}
.nav-links a{color:var(--text-muted)}
.nav-links a:hover{color:var(--accent);text-decoration:none}

/* Hero */
.hero{padding:64px 0 48px;text-align:center}
.hero h1{font-size:clamp(28px,5vw,42px);font-weight:800;line-height:1.2;margin-bottom:16px;letter-spacing:-.02em}
.hero .sub{font-size:clamp(16px,2.5vw,20px);color:var(--text-muted);max-width:560px;margin:0 auto 24px}
.hero-bullets{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:12px 24px;margin-bottom:32px;font-size:15px;color:var(--text-muted)}
.hero-bullets li::before{content:"\2713";color:var(--accent);font-weight:700;margin-right:6px}
.cta-group{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 28px;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;border:none;transition:background .15s,box-shadow .15s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);text-decoration:none}
.btn-secondary{background:transparent;color:var(--accent);border:1.5px solid var(--accent)}
.btn-secondary:hover{background:var(--accent);color:#fff;text-decoration:none}
.btn-sm{padding:8px 16px;font-size:13px}

/* Sections */
section{padding:56px 0}
section:nth-child(even){background:var(--bg-alt)}
.section-title{text-align:center;font-size:clamp(22px,3.5vw,30px);font-weight:700;margin-bottom:12px}
.section-sub{text-align:center;color:var(--text-muted);margin-bottom:40px;max-width:540px;margin-left:auto;margin-right:auto;font-size:15px}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px}
.step{text-align:center}
.step-icon{width:56px;height:56px;margin:0 auto 16px;background:var(--accent);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;color:var(--text-muted)}
.steps-note{text-align:center;margin-top:24px;font-size:13px;color:var(--text-muted);font-style:italic}

/* Demo */
.demo-box{background:#fff;border:2px solid var(--accent);border-radius:var(--radius-lg);padding:32px;max-width:480px;margin:0 auto;text-align:center;box-shadow:var(--shadow-lg)}
.demo-box h3{margin-bottom:16px;font-size:20px}
.demo-instructions{list-style:none;text-align:left;margin-bottom:24px;font-size:15px}
.demo-instructions li{padding:8px 0;border-bottom:1px solid var(--border);display:flex;gap:10px}
.demo-instructions li:last-child{border:none}
.demo-instructions .num{flex-shrink:0;width:24px;height:24px;background:var(--accent);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.demo-number{font-size:clamp(24px,4vw,32px);font-weight:800;letter-spacing:.02em;margin-bottom:12px}
.demo-number a{color:var(--text)}
.demo-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:16px}
.demo-disclaimer{font-size:12px;color:var(--text-muted)}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card-icon{font-size:28px;margin-bottom:12px}
.card h3{font-size:15px;margin-bottom:6px}
.card p{font-size:14px;color:var(--text-muted)}

/* Pricing */
.pricing-card{background:#fff;border:2px solid var(--border);border-radius:var(--radius-lg);padding:40px;max-width:400px;margin:0 auto;text-align:center;box-shadow:var(--shadow)}
.pricing-price{font-size:clamp(36px,5vw,48px);font-weight:800;margin-bottom:4px}
.pricing-period{font-size:14px;color:var(--text-muted);margin-bottom:24px}
.pricing-features{list-style:none;text-align:left;margin-bottom:24px}
.pricing-features li{padding:8px 0;border-bottom:1px solid var(--border);font-size:14px}
.pricing-features li::before{content:"\2713";color:var(--accent);font-weight:700;margin-right:8px}
.pricing-note{font-size:13px;color:var(--text-muted);font-style:italic}

/* FAQ */
.faq-list{max-width:640px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border);padding:16px 0}
.faq-q{font-weight:600;font-size:15px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q::after{content:"+";font-size:20px;color:var(--text-muted);transition:transform .2s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;font-size:14px;color:var(--text-muted);line-height:1.7}
.faq-item.open .faq-a{max-height:200px;padding-top:8px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;max-width:720px;margin:0 auto}
@media(max-width:600px){.contact-grid{grid-template-columns:1fr}}
.contact-info p{font-size:14px;color:var(--text-muted);margin-bottom:12px}
.contact-form{display:flex;flex-direction:column;gap:12px}
.contact-form input,.contact-form textarea{font-family:var(--font);font-size:14px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);outline:none;transition:border-color .15s}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--accent)}
.contact-form textarea{resize:vertical;min-height:80px}

/* Footer */
.footer{background:var(--text);color:#9aa0a6;padding:32px 0;font-size:13px}
.footer .container{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px}
.footer a{color:#9aa0a6}
.footer a:hover{color:#fff}
.footer-links{display:flex;gap:16px}

/* Copy toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--text);color:#fff;padding:10px 20px;border-radius:var(--radius);font-size:14px;opacity:0;transition:transform .3s,opacity .3s;pointer-events:none;z-index:200}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}

/* Responsive */
@media(max-width:600px){
  .nav-links{gap:12px;font-size:13px}
  .hero{padding:40px 0 32px}
  section{padding:40px 0}
  .demo-box{padding:24px 16px}
}