@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --bg: #050e1a;
  --bg2: #071525;
  --bg3: #0a1f36;
  --accent: #00c8ff;
  --accent2: #0077ff;
  --accent3: #00ffb3;
  --text: #e8f4ff;
  --text2: #8bb5d4;
  --card: rgba(0,120,255,0.06);
  --border: rgba(0,200,255,0.15);
  --radius: 14px;
  --nav-h: 72px;
  --shadow: 0 8px 40px rgba(0,120,255,0.15);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'DM Sans',sans-serif;
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  overflow-x:hidden;
}

/* TOP BANNER */
.top-banner{
  background:linear-gradient(90deg,var(--accent2),var(--accent));
  text-align:center;padding:.55rem 1rem;
  font-size:.82rem;font-weight:600;color:#fff;letter-spacing:.3px;
}
.top-banner span{opacity:.8;}

/* NAV */
nav{
  position:sticky;top:0;left:0;right:0;z-index:900;
  height:var(--nav-h);
  background:rgba(5,14,26,0.95);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 5vw;
}
.logo{
  font-family:'Syne',sans-serif;font-weight:800;font-size:1.5rem;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  letter-spacing:-0.5px;text-decoration:none;
}
.logo span{-webkit-text-fill-color:var(--accent3);}
.nav-links{display:flex;gap:2rem;list-style:none;align-items:center;}
.nav-links a{
  color:var(--text2);text-decoration:none;
  font-size:.93rem;font-weight:500;letter-spacing:.3px;
  transition:color .2s;
}
.nav-links a:hover,.nav-links a.active{color:var(--accent);}
.nav-cta{
  background:linear-gradient(135deg,var(--accent2),var(--accent));
  color:#fff;border:none;padding:.55rem 1.4rem;
  border-radius:50px;font-family:'DM Sans',sans-serif;
  font-size:.9rem;font-weight:600;cursor:pointer;
  text-decoration:none;display:inline-block;
  transition:opacity .2s,transform .2s;
}
.nav-cta:hover{opacity:.85;transform:translateY(-1px);}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px;}
.hamburger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s;}
.mobile-menu{
  display:none;position:fixed;top:calc(var(--nav-h) + 35px);
  left:0;right:0;background:var(--bg2);
  border-bottom:1px solid var(--border);
  padding:1.5rem 5vw;z-index:899;
}
.mobile-menu.open{display:block;}
.mobile-menu a{
  display:block;padding:.75rem 0;color:var(--text2);
  text-decoration:none;font-size:1rem;
  border-bottom:1px solid var(--border);
}
.mobile-menu a:last-child{border:none;}

/* PAGE HERO */
.page-hero{
  padding:5rem 5vw 3.5rem;text-align:center;
  border-bottom:1px solid var(--border);
  background:linear-gradient(160deg,rgba(0,120,255,0.1),transparent 70%);
  position:relative;overflow:hidden;
}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(0,200,255,0.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,200,255,0.03) 1px,transparent 1px);
  background-size:50px 50px;
}
.page-hero>*{position:relative;z-index:1;}
.page-hero h1{
  font-family:'Syne',sans-serif;
  font-size:clamp(2rem,5vw,3.2rem);font-weight:800;margin-bottom:.75rem;
}
.page-hero p{color:var(--text2);max-width:580px;margin:0 auto;line-height:1.7;}

/* SECTION */
section{padding:5rem 5vw;}
.section-tag{
  display:inline-block;color:var(--accent);font-size:.8rem;
  font-weight:600;letter-spacing:2px;text-transform:uppercase;margin-bottom:.75rem;
}
.section-title{
  font-family:'Syne',sans-serif;font-size:clamp(1.8rem,4vw,2.8rem);
  font-weight:800;margin-bottom:1rem;
}
.section-sub{color:var(--text2);font-size:1rem;line-height:1.7;max-width:560px;}
.section-header{margin-bottom:3rem;}
.section-header.center{text-align:center;}
.section-header.center .section-sub{margin:0 auto;}

/* CARDS */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem;}
.card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);padding:2rem;
  transition:transform .3s,border-color .3s,box-shadow .3s;
  position:relative;overflow:hidden;
}
.card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--accent2),var(--accent));
  opacity:0;transition:opacity .3s;
}
.card:hover{transform:translateY(-6px);border-color:rgba(0,200,255,0.3);box-shadow:var(--shadow);}
.card:hover::before{opacity:1;}
.card-icon{
  width:52px;height:52px;border-radius:12px;
  background:rgba(0,120,255,0.15);
  display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;margin-bottom:1.2rem;
  border:1px solid rgba(0,120,255,0.2);
}
.card h3{font-family:'Syne',sans-serif;font-size:1.1rem;font-weight:700;margin-bottom:.6rem;}
.card p{color:var(--text2);font-size:.9rem;line-height:1.6;}

/* BUTTONS */
.btn-primary{
  background:linear-gradient(135deg,var(--accent2),var(--accent));
  color:#fff;padding:.85rem 2rem;border-radius:50px;
  font-size:1rem;font-weight:600;cursor:pointer;border:none;
  font-family:'DM Sans',sans-serif;text-decoration:none;display:inline-block;
  transition:transform .2s,box-shadow .2s;
  box-shadow:0 4px 24px rgba(0,120,255,0.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(0,120,255,0.5);}
.btn-outline{
  background:transparent;border:1.5px solid var(--accent);
  color:var(--accent);padding:.85rem 2rem;border-radius:50px;
  font-size:1rem;font-weight:600;cursor:pointer;
  font-family:'DM Sans',sans-serif;text-decoration:none;display:inline-block;
  transition:background .2s,color .2s;
}
.btn-outline:hover{background:var(--accent);color:#000;}
.btn-group{display:flex;gap:1rem;flex-wrap:wrap;}

/* CTA SECTION */
.cta-section{
  padding:5rem 5vw;text-align:center;
  background:linear-gradient(135deg,rgba(0,120,255,0.12),rgba(0,200,255,0.06));
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
}
.cta-section h2{font-family:'Syne',sans-serif;font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;margin-bottom:1rem;}
.cta-section p{color:var(--text2);max-width:520px;margin:0 auto 2rem;line-height:1.7;}
.cta-section .btn-group{justify-content:center;}

/* TESTIMONIALS */
.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;}
.testimonial{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);padding:1.8rem;
}
.stars{color:#fbbf24;font-size:1.1rem;margin-bottom:1rem;letter-spacing:2px;}
.testimonial p{color:var(--text2);font-size:.92rem;line-height:1.7;margin-bottom:1rem;}
.t-author{display:flex;align-items:center;gap:.75rem;}
.t-avatar{
  width:40px;height:40px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent2),var(--accent3));
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.9rem;color:#000;flex-shrink:0;
}
.t-name{font-weight:600;font-size:.9rem;}
.t-role{color:var(--text2);font-size:.78rem;}

/* FAQ */
.faq-section{padding:5rem 5vw;background:var(--bg2);}
.faq-list{max-width:760px;margin:2rem auto 0;}
.faq-item{border:1px solid var(--border);border-radius:10px;margin-bottom:.75rem;overflow:hidden;}
.faq-q{
  padding:1.2rem 1.5rem;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;
  font-weight:600;font-size:.95rem;transition:background .2s;
}
.faq-q:hover{background:rgba(0,200,255,0.05);}
.faq-q.open{color:var(--accent);}
.faq-icon{font-size:1.2rem;transition:transform .3s;color:var(--accent);}
.faq-q.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 1.5rem;color:var(--text2);font-size:.9rem;line-height:1.7;}
.faq-a.open{max-height:200px;padding:0 1.5rem 1.2rem;}

/* FOOTER */
footer{background:var(--bg2);border-top:1px solid var(--border);padding:3rem 5vw 2rem;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem;margin-bottom:3rem;}
.footer-brand p{color:var(--text2);font-size:.88rem;line-height:1.6;margin-top:.75rem;max-width:280px;}
.footer-col h4{font-family:'Syne',sans-serif;font-size:.9rem;font-weight:700;color:var(--accent);letter-spacing:1px;text-transform:uppercase;margin-bottom:1rem;}
.footer-col a{display:block;color:var(--text2);text-decoration:none;font-size:.88rem;margin-bottom:.5rem;transition:color .2s;}
.footer-col a:hover{color:var(--text);}
.footer-bottom{border-top:1px solid var(--border);padding-top:1.5rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;font-size:.82rem;color:var(--text2);}
.social-links{display:flex;gap:.75rem;}
.social-link{
  width:34px;height:34px;border-radius:8px;
  background:var(--card);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  text-decoration:none;color:var(--text2);font-size:.85rem;
  transition:border-color .2s,color .2s;
}
.social-link:hover{border-color:var(--accent);color:var(--accent);}

/* HELP FAB */
.help-fab{
  position:fixed;bottom:2rem;right:2rem;z-index:1000;
  width:58px;height:58px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent2),var(--accent));
  border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;color:#fff;
  box-shadow:0 6px 24px rgba(0,120,255,0.5);
  transition:transform .2s;animation:pulsebtn 2s ease infinite;
}
.help-fab:hover{transform:scale(1.1);}
@keyframes pulsebtn{
  0%,100%{box-shadow:0 6px 24px rgba(0,120,255,0.5);}
  50%{box-shadow:0 6px 36px rgba(0,200,255,0.7);}
}
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:998;backdrop-filter:blur(4px);}
.overlay.active{display:block;}
.help-popup{
  display:none;position:fixed;bottom:5.5rem;right:2rem;z-index:999;
  width:360px;background:var(--bg3);
  border:1px solid var(--border);border-radius:18px;
  box-shadow:0 24px 60px rgba(0,0,0,.5);overflow:hidden;
}
.help-popup.active{display:block;animation:slideUp .3s ease;}
@keyframes slideUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);}}
.popup-header{
  background:linear-gradient(135deg,var(--accent2),var(--accent));
  padding:1.5rem;display:flex;justify-content:space-between;align-items:center;
}
.popup-header-text h3{font-family:'Syne',sans-serif;font-weight:800;color:#fff;font-size:1.1rem;}
.popup-header-text p{color:rgba(255,255,255,0.8);font-size:.8rem;margin-top:.2rem;}
.popup-close{background:rgba(255,255,255,0.2);border:none;color:#fff;width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:1rem;display:flex;align-items:center;justify-content:center;}
.popup-body{padding:1.5rem;}
.popup-options{display:flex;flex-direction:column;gap:.75rem;margin-bottom:1.25rem;}
.popup-option{
  display:flex;align-items:center;gap:1rem;
  background:var(--card);border:1px solid var(--border);
  border-radius:10px;padding:1rem;text-decoration:none;color:var(--text);
  transition:border-color .2s,transform .2s;
}
.popup-option:hover{border-color:var(--accent);transform:translateX(4px);}
.pop-icon{width:38px;height:38px;border-radius:9px;background:rgba(0,120,255,0.15);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0;}
.pop-title{font-weight:600;font-size:.9rem;}
.pop-sub{color:var(--text2);font-size:.78rem;margin-top:.1rem;}
.popup-chat{border-top:1px solid var(--border);padding-top:1.25rem;}
.popup-chat p{font-size:.82rem;color:var(--text2);margin-bottom:.75rem;}
.chat-input-row{display:flex;gap:.5rem;}
.chat-input{flex:1;background:rgba(0,120,255,0.06);border:1px solid var(--border);border-radius:8px;padding:.6rem .85rem;color:var(--text);font-family:'DM Sans',sans-serif;font-size:.88rem;outline:none;}
.chat-input:focus{border-color:var(--accent);}
.chat-send{background:var(--accent2);border:none;color:#fff;border-radius:8px;padding:.6rem .9rem;cursor:pointer;font-size:.95rem;transition:background .2s;}
.chat-send:hover{background:var(--accent);}
.chat-messages{margin-top:.75rem;max-height:120px;overflow-y:auto;font-size:.82rem;}
.chat-msg{padding:.4rem .6rem;border-radius:6px;margin-bottom:.4rem;}
.chat-msg.user{background:rgba(0,120,255,0.15);text-align:right;}
.chat-msg.bot{background:rgba(0,200,255,0.08);color:var(--text2);}

/* SCROLL TOP */
#scrollTop{
  position:fixed;bottom:5.5rem;right:5.5rem;z-index:997;
  width:44px;height:44px;border-radius:50%;
  background:var(--bg3);border:1px solid var(--border);
  color:var(--text2);font-size:1.1rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .3s;text-decoration:none;
}
#scrollTop.visible{opacity:1;}

/* ANIMATIONS */
@keyframes fadeUp{from{opacity:0;transform:translateY(24px);}to{opacity:1;transform:translateY(0);}}
.fade-in{animation:fadeUp .7s ease both;}

/* RESPONSIVE */
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:640px){
  .nav-links{display:none;}
  .hamburger{display:flex;}
  .footer-grid{grid-template-columns:1fr;}
  .help-popup{width:calc(100vw - 2rem);right:1rem;}
  #scrollTop{right:4.5rem;bottom:2rem;}
}