/* ===================== AVA Commerce OS — Core Styles ===================== */
:root{
  --bg:#05060a;
  --bg-alt:#0a0d16;
  --surface: rgba(255,255,255,0.04);
  --surface-strong: rgba(255,255,255,0.07);
  --border: rgba(255,255,255,0.09);
  --text:#f5f7ff;
  --text-dim:#9aa3b8;
  --text-dimmer:#6b7488;
  --violet:#8b5cf6;
  --blue:#3b82f6;
  --cyan:#22d3ee;
  --pink:#ec4899;
  --green:#22c55e;
  --grad-1: linear-gradient(135deg,#7c3aed 0%,#3b82f6 50%,#22d3ee 100%);
  --grad-2: linear-gradient(135deg,#ec4899 0%,#8b5cf6 100%);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-lg: 0 30px 80px -20px rgba(0,0,0,.6);
  --ease: cubic-bezier(.16,1,.3,1);
}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul{list-style:none;}
button{font-family:inherit; cursor:pointer;}
.container{max-width:1200px; margin:0 auto; padding:0 24px;}
.section{padding:120px 0; position:relative;}
.section-tight{padding:80px 0;}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:600; letter-spacing:.04em;
  color:var(--cyan); text-transform:uppercase;
  background:var(--surface); border:1px solid var(--border);
  padding:6px 16px; border-radius:999px; margin-bottom:24px;
}
h1,h2,h3,h4{font-weight:800; letter-spacing:-0.02em; line-height:1.1;}
.gradient-text{
  background:var(--grad-1);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.section-head{max-width:680px; margin:0 auto 64px; text-align:center;}
.section-head h2{font-size:clamp(28px,4vw,44px); margin-bottom:16px;}
.section-head p{color:var(--text-dim); font-size:18px;}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:15px 28px; border-radius:999px; font-weight:600; font-size:15px;
  border:1px solid transparent; transition:transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-1); color:#fff;
  box-shadow:0 10px 30px -8px rgba(124,58,237,.6);
}
.btn-primary:hover{transform:translateY(-2px) scale(1.02); box-shadow:0 16px 40px -8px rgba(124,58,237,.8);}
.btn-ghost{background:var(--surface); border-color:var(--border); color:var(--text);}
.btn-ghost:hover{background:var(--surface-strong); transform:translateY(-2px);}
.btn-lg{padding:18px 34px; font-size:16px;}

/* Navbar */
.navbar{
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:18px 0; transition:background .3s,backdrop-filter .3s,border-color .3s;
  border-bottom:1px solid transparent;
}
.navbar.scrolled{
  background:rgba(5,6,10,.75); backdrop-filter:blur(16px);
  border-bottom-color:var(--border);
}
.nav-inner{display:flex; align-items:center; justify-content:space-between;}
.logo{display:flex; align-items:center; gap:10px; font-weight:800; font-size:20px;}
.logo-mark{
  width:34px; height:34px; border-radius:10px; background:var(--grad-1);
  display:flex; align-items:center; justify-content:center; font-size:16px;
}
.nav-links{display:flex; align-items:center; gap:32px;}
.nav-links a{color:var(--text-dim); font-size:14.5px; font-weight:500; transition:color .2s;}
.nav-links a:hover{color:var(--text);}
.nav-cta{display:flex; align-items:center; gap:14px;}
.nav-toggle{display:none; background:none; border:none; color:var(--text); font-size:24px;}

@media (max-width:900px){
  .nav-links{
    position:fixed; inset:70px 16px auto 16px; background:var(--bg-alt);
    border:1px solid var(--border); border-radius:var(--radius-md);
    flex-direction:column; padding:24px; gap:18px;
    transform:translateY(-12px); opacity:0; pointer-events:none; transition:.3s var(--ease);
  }
  .nav-links.open{transform:translateY(0); opacity:1; pointer-events:auto;}
  .nav-toggle{display:block;}
  .nav-cta .btn-ghost{display:none;}
}

/* Hero */
.hero{
  position:relative; min-height:100vh; display:flex; align-items:center;
  padding-top:120px; overflow:hidden;
}
.hero-bg{
  position:absolute; inset:0; z-index:0;
  background:
    radial-gradient(circle at 20% 20%, rgba(124,58,237,.35), transparent 45%),
    radial-gradient(circle at 80% 10%, rgba(34,211,238,.25), transparent 40%),
    radial-gradient(circle at 50% 90%, rgba(236,72,153,.2), transparent 45%);
  animation:heroShift 16s ease-in-out infinite alternate;
}
@keyframes heroShift{
  0%{filter:hue-rotate(0deg);}
  100%{filter:hue-rotate(30deg);}
}
.particles{position:absolute; inset:0; z-index:0; pointer-events:none;}
.particle{
  position:absolute; border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.9),transparent 70%);
  animation:floatParticle linear infinite;
  opacity:.5;
}
@keyframes floatParticle{
  0%{transform:translateY(110vh) translateX(0) scale(.6); opacity:0;}
  10%{opacity:.7;}
  90%{opacity:.5;}
  100%{transform:translateY(-10vh) translateX(40px) scale(1); opacity:0;}
}
.hero-inner{position:relative; z-index:2; display:grid; grid-template-columns:1.1fr .9fr; gap:60px; align-items:center;}
@media(max-width:980px){.hero-inner{grid-template-columns:1fr;}}
.hero h1{font-size:clamp(36px,5.2vw,64px); margin-bottom:24px;}
.hero p.lead{font-size:19px; color:var(--text-dim); max-width:520px; margin-bottom:36px;}
.hero-actions{display:flex; gap:16px; flex-wrap:wrap;}
.hero-stats{display:flex; gap:36px; margin-top:56px; flex-wrap:wrap;}
.hero-stat b{display:block; font-size:26px; font-weight:800;}
.hero-stat span{font-size:13px; color:var(--text-dimmer);}

/* Glass dashboard card */
.glass-card{
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius-lg); backdrop-filter:blur(20px);
  box-shadow:var(--shadow-lg);
}
.dashboard-mock{padding:24px; position:relative;}
.dashboard-mock .dm-head{display:flex; justify-content:space-between; align-items:center; margin-bottom:20px;}
.dm-dots{display:flex; gap:6px;}
.dm-dots span{width:9px; height:9px; border-radius:50%; background:var(--text-dimmer);}
.dm-grid{display:grid; grid-template-columns:1fr 1fr; gap:14px;}
.dm-tile{background:var(--surface-strong); border:1px solid var(--border); border-radius:var(--radius-sm); padding:16px;}
.dm-tile b{font-size:20px; display:block;}
.dm-tile span{font-size:12px; color:var(--text-dim);}
.dm-chart{height:70px; margin-top:10px; display:flex; align-items:flex-end; gap:4px;}
.dm-chart i{flex:1; background:var(--grad-1); border-radius:4px 4px 0 0; opacity:.85; animation:barGrow 1.2s var(--ease) both;}
@keyframes barGrow{from{transform:scaleY(0); transform-origin:bottom;} to{transform:scaleY(1);}}
.floating-card{
  position:absolute; padding:14px 18px; border-radius:14px;
  background:var(--surface-strong); border:1px solid var(--border);
  backdrop-filter:blur(16px); font-size:13px; font-weight:600;
  animation:floatCard 6s ease-in-out infinite;
  box-shadow:0 20px 40px -16px rgba(0,0,0,.5);
}
@keyframes floatCard{0%,100%{transform:translateY(0);} 50%{transform:translateY(-14px);}}

/* Logos / social proof */
.logo-strip{display:flex; flex-wrap:wrap; justify-content:center; gap:48px; opacity:.6;}
.logo-strip span{font-weight:700; letter-spacing:.05em; font-size:15px; color:var(--text-dim);}
.stat-row{display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin-top:56px;}
@media(max-width:800px){.stat-row{grid-template-columns:repeat(2,1fr);}}
.stat-item{text-align:center;}
.stat-item b{font-size:34px; display:block; font-weight:800;}
.stat-item span{font-size:13px; color:var(--text-dimmer);}

/* Cards grid (reveal) */
.reveal{opacity:0; transform:translateY(28px); transition:opacity .7s var(--ease), transform .7s var(--ease);}
.reveal.visible{opacity:1; transform:translateY(0);}

.card-grid{display:grid; gap:24px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media(max-width:980px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.grid-3,.grid-4,.grid-2{grid-template-columns:1fr;}}

.feature-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-md);
  padding:30px; transition:transform .35s var(--ease), border-color .35s, background .35s;
  position:relative; overflow:hidden;
}
.feature-card:hover{transform:translateY(-6px); border-color:rgba(139,92,246,.4); background:var(--surface-strong);}
.feature-icon{
  width:48px; height:48px; border-radius:12px; display:flex; align-items:center; justify-content:center;
  background:var(--grad-1); font-size:22px; margin-bottom:20px;
}
.feature-card h3{font-size:18px; margin-bottom:10px;}
.feature-card p{color:var(--text-dim); font-size:14.5px;}

/* Why section */
.why-list{display:flex; flex-direction:column; gap:20px;}
.why-item{display:flex; gap:16px; align-items:flex-start;}
.why-check{
  width:28px; height:28px; border-radius:50%; background:var(--grad-1); flex:0 0 28px;
  display:flex; align-items:center; justify-content:center; font-size:14px; margin-top:2px;
}

/* Timeline / How it works */
.timeline{display:grid; grid-template-columns:repeat(4,1fr); gap:24px; position:relative;}
@media(max-width:900px){.timeline{grid-template-columns:1fr;}}
.timeline::before{
  content:""; position:absolute; top:26px; left:0; right:0; height:2px;
  background:linear-gradient(90deg,transparent,var(--violet),var(--cyan),transparent);
}
@media(max-width:900px){.timeline::before{display:none;}}
.tl-step{position:relative; text-align:center;}
.tl-num{
  width:54px; height:54px; border-radius:50%; margin:0 auto 20px; position:relative; z-index:2;
  background:var(--bg); border:2px solid var(--violet); display:flex; align-items:center; justify-content:center;
  font-weight:800; color:var(--cyan);
}
.tl-step h4{margin-bottom:8px; font-size:17px;}
.tl-step p{color:var(--text-dim); font-size:14px;}

/* Security */
.security-grid{display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center;}
@media(max-width:900px){.security-grid{grid-template-columns:1fr;}}
.sec-badge{
  display:flex; gap:14px; align-items:flex-start; padding:16px 0; border-bottom:1px solid var(--border);
}
.sec-badge:last-child{border-bottom:none;}

/* Pricing */
.toggle-wrap{display:flex; justify-content:center; align-items:center; gap:14px; margin-bottom:48px;}
.toggle{
  width:52px; height:28px; border-radius:999px; background:var(--surface-strong); border:1px solid var(--border);
  position:relative; cursor:pointer;
}
.toggle-dot{
  position:absolute; top:2px; left:2px; width:22px; height:22px; border-radius:50%;
  background:var(--grad-1); transition:.3s var(--ease);
}
.toggle.on .toggle-dot{left:28px;}
.save-badge{font-size:12px; background:rgba(34,197,94,.15); color:var(--green); padding:3px 10px; border-radius:999px;}

.pricing-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:36px 30px; display:flex; flex-direction:column; position:relative;
}
.pricing-card.featured{
  border-color:var(--violet); background:linear-gradient(180deg,rgba(139,92,246,.12),transparent 40%), var(--surface);
  transform:scale(1.03);
}
.pricing-card .badge-pop{
  position:absolute; top:-14px; left:50%; transform:translateX(-50%);
  background:var(--grad-1); font-size:12px; font-weight:700; padding:5px 16px; border-radius:999px;
}
.price-num{font-size:44px; font-weight:800; margin:20px 0 4px;}
.price-num sup{font-size:16px; font-weight:600; color:var(--text-dim);}
.pricing-card ul{margin:26px 0; display:flex; flex-direction:column; gap:12px; flex:1;}
.pricing-card li{display:flex; gap:10px; font-size:14.5px; color:var(--text-dim);}

/* FAQ */
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{
  display:flex; justify-content:space-between; align-items:center; padding:22px 4px; cursor:pointer;
  font-weight:600; font-size:16px;
}
.faq-q .plus{transition:transform .3s var(--ease); color:var(--cyan); font-size:20px;}
.faq-item.open .plus{transform:rotate(45deg);}
.faq-a{max-height:0; overflow:hidden; transition:max-height .35s var(--ease); color:var(--text-dim); font-size:14.5px;}
.faq-a p{padding:0 4px 22px;}

/* Contact form */
.form-grid{display:grid; grid-template-columns:1fr 1fr; gap:18px;}
@media(max-width:640px){.form-grid{grid-template-columns:1fr;}}
.field{display:flex; flex-direction:column; gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13px; color:var(--text-dim);}
.field input,.field textarea,.field select{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:13px 16px; color:var(--text); font-family:inherit; font-size:14.5px;
  transition:border-color .2s, background .2s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none; border-color:var(--violet); background:var(--surface-strong);}
.field textarea{resize:vertical; min-height:120px;}

/* Legal pages */
.legal-content h2{font-size:22px; margin:36px 0 12px;}
.legal-content h2:first-child{margin-top:0;}
.legal-content p, .legal-content li{color:var(--text-dim); font-size:15px; margin-bottom:10px;}
.legal-content ul{padding-left:20px; list-style:disc;}
.legal-toc{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-md);
  padding:24px; margin-bottom:40px;
}
.legal-toc a{display:block; padding:6px 0; color:var(--text-dim); font-size:14px;}
.legal-toc a:hover{color:var(--cyan);}

/* Footer */
footer{border-top:1px solid var(--border); padding:70px 0 30px; background:var(--bg-alt);}
.footer-grid{display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; margin-bottom:50px;}
@media(max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;}}
.footer-grid h5{font-size:14px; margin-bottom:16px; color:var(--text);}
.footer-grid a{display:block; color:var(--text-dim); font-size:14px; padding:5px 0;}
.footer-grid a:hover{color:var(--text);}
.footer-bottom{display:flex; justify-content:space-between; flex-wrap:wrap; gap:14px; padding-top:26px; border-top:1px solid var(--border); color:var(--text-dimmer); font-size:13px;}

/* Page hero (inner pages) */
.page-hero{padding:180px 0 80px; text-align:center;}
.page-hero h1{font-size:clamp(32px,5vw,52px); margin-bottom:16px;}
.page-hero p{color:var(--text-dim); font-size:17px; max-width:600px; margin:0 auto;}

.badge-row{display:flex; gap:12px; flex-wrap:wrap; justify-content:center; margin-top:30px;}
.value-card{background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-md); padding:28px;}

/* utility */
.text-center{text-align:center;}
.mt-40{margin-top:40px;}
.mt-60{margin-top:60px;}