:root{
  --bg: #0d0f13;
  --card: #131722;
  --text: #E6E8EC;
  --muted: #A7ADBB;
  --primary: #5865F2;
  --accent: #2EE6A6;
  --stroke: #222938;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body{
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 80% -10%, rgba(88,101,242,.2), transparent 60%), var(--bg);
  line-height: 1.6;
}

img{ max-width: 100%; }

.container{ width: min(1120px, 90%); margin: 0 auto; }

.site-header{
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(180%) blur(8px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--stroke) 60%, transparent);
  transition: box-shadow .2s ease, background .2s ease;
}
.site-header[data-elevate="true"]{ box-shadow: var(--shadow); background: color-mix(in srgb, var(--bg) 92%, transparent); }

.header-inner{ display:flex; align-items:center; justify-content:space-between; padding: .6rem 0; }
.logo{ display:flex; align-items:center; gap:.6rem; text-decoration:none; color: var(--text); }
.logo-svg{ height: 36px; }
.logo-mini{ font-weight:800; letter-spacing:.2px; }

.nav-toggle{ display:none; font-size:1.4rem; background:none; border:1px solid var(--stroke); color:var(--text); padding:.4rem .6rem; border-radius:.6rem; }
.menu{ list-style:none; display:flex; gap:1rem; margin:0; padding:0; align-items:center; }
.menu a{ color: var(--text); text-decoration:none; padding:.6rem .8rem; border-radius:.6rem; }
.menu a:hover{ background: color-mix(in srgb, var(--stroke) 30%, transparent); }

.btn{
  display:inline-block; text-decoration:none; border:1px solid var(--stroke); color:var(--text);
  padding:.8rem 1rem; border-radius:.8rem; transition: transform .12s ease, background .2s ease, border-color .2s ease;
}
.btn:hover{ transform: translateY(-1px); border-color: color-mix(in srgb, var(--stroke) 30%, transparent); }
.btn.small{ padding:.5rem .8rem; font-size:.9rem; }
.btn.primary{ background: linear-gradient(135deg, var(--primary), #7C8CFF); border-color: transparent; color: white; }
.btn.ghost{ background: transparent; }

.hero{ padding: 8rem 0 4rem; position: relative; }
.hero-inner{ display:grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; align-items:center; }
.hero-copy h1{ font-size: clamp(2rem, 3vw + 1rem, 3.4rem); line-height:1.1; margin:0 0 1rem; }
.lead{ color: var(--muted); font-size: clamp(1rem, .5vw + .9rem, 1.12rem); max-width: 60ch; }
.cta-row{ display:flex; gap:1rem; margin:1.2rem 0 1.6rem; flex-wrap: wrap; }
.gradient{ background: linear-gradient(90deg, var(--accent), var(--primary)); -webkit-background-clip:text; background-clip:text; color: transparent; }
.trust{ display:flex; gap:1.2rem; flex-wrap: wrap; }
.kpi{ display:flex; gap:.5rem; align-items:baseline; padding:.6rem .8rem; border:1px dashed var(--stroke); border-radius:.6rem; }
.kpi strong{ font-size:1.2rem; }

.hero-art{ position: relative; display:flex; align-items:center; justify-content:center; }
.phone{
  width: 320px; border-radius: 24px; padding: 10px; background: linear-gradient(180deg, #1a2132, #101521);
  border: 1px solid var(--stroke); box-shadow: var(--shadow);
}
.status{ height: 24px; border-radius: 14px; background: #0c111a; border: 1px solid var(--stroke); margin-bottom:10px; }
.screen{ background:#0c111a; border:1px solid var(--stroke); border-radius:18px; padding:14px; height: 440px; overflow: hidden; position: relative; }
.bubble{ max-width: 80%; padding:.7rem .9rem; margin:.4rem 0; border-radius:1rem; font-size:.95rem; }
.bubble.bot{ background: #12192a; border:1px solid #1e2740; }
.bubble.user{ background: #172037; border:1px solid #233056; margin-left:auto; }
.inputbar{ position:absolute; left:12px; right:12px; bottom:12px; height:44px; border-radius:12px; background:#12192a; border:1px solid #1e2740; display:flex; align-items:center; padding:0 12px; color:#7182a5; font-size:.95rem; }

.sparkles{ position:absolute; inset: -20px -60px auto auto; width:180px; height:180px; fill: var(--accent); }

.section{ padding: 5rem 0; }
.section.alt{ background: linear-gradient(180deg, rgba(255,255,255,.02), transparent); }
.section h2{ font-size: clamp(1.6rem, .9vw + 1.2rem, 2.2rem); margin:0 0 .6rem; }
.section-lead{ color: var(--muted); margin-bottom: 2rem; }

.grid{ display:grid; gap:1.4rem; }
.cards{ grid-template-columns: repeat(12, 1fr); }
.features-grid > .card{ grid-column: span 4; }
.plans-grid > .plan-card{ grid-column: span 4; }

.card{
  background: var(--card); border:1px solid var(--stroke); border-radius: 1rem; padding: 1.2rem 1.2rem;
  box-shadow: 0 1px 0 rgba(255,255,255,.03) inset, var(--shadow);
}
.card .icon{ width:40px; height:40px; display:grid; place-items:center; border-radius:.6rem; background: #101521; border:1px solid var(--stroke); margin-bottom:.4rem; }

.steps{ list-style:none; padding:0; margin:2rem 0 0; display:grid; gap:1rem; }
.steps li{ display:flex; gap:1rem; align-items:flex-start; background: var(--card); border:1px solid var(--stroke); padding:1rem; border-radius:.8rem; }
.step{ width:36px; height:36px; min-width:36px; display:grid; place-items:center; background: linear-gradient(135deg, var(--accent), #58f2c8); color:#051914; font-weight:800; border-radius:.6rem; }

.plan-card.highlight{ position:relative; outline:2px solid color-mix(in srgb, var(--accent) 30%, transparent); }
.plan-card.highlight .badge{ position:absolute; top:-10px; right:12px; background: linear-gradient(135deg, var(--accent), #58f2c8); color:#041a15; font-weight:800; padding:.25rem .5rem; border-radius:.5rem; border:1px solid #0f2a21; }

.slider{ position:relative; display:flex; align-items:center; gap:1rem; }
.track{ overflow:hidden; width:100%; }
.slide{ min-width:100%; transition: transform .4s ease, opacity .4s ease; opacity: .3; }
.slide.active{ opacity:1; }
.slider button{ background: transparent; border:1px solid var(--stroke); color: var(--text); width:38px; height:38px; border-radius:.6rem; }

.accordion details{ background: var(--card); border:1px solid var(--stroke); padding: .8rem 1rem; border-radius:.8rem; margin: .6rem 0; }
.accordion summary{ cursor: pointer; font-weight:600; }
.accordion p{ margin: .6rem 0 0; color: var(--muted); }

.contact .contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:1.2rem; align-items:start; }
.contact-list{ padding:0; margin:1rem 0 0; list-style:none; color: var(--muted); }

.site-footer{ border-top:1px solid var(--stroke); background: #0b0e14; padding: 2rem 0; }
.footer-grid{ display:grid; grid-template-columns: 1fr auto auto; gap:1rem; align-items:start; }
.site-footer a{ color: var(--muted); text-decoration:none; margin-right: .8rem; }
.social a{ display:inline-grid; place-items:center; width:36px; height:36px; border:1px solid var(--stroke); border-radius:.5rem; }

/* reveals */
.reveal{ opacity: 0; transform: translateY(10px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible{ opacity: 1; transform: none; }

/* responsive */
@media (max-width: 900px){
  .hero-inner{ grid-template-columns: 1fr; }
  .contact .contact-grid{ grid-template-columns: 1fr; }
  .features-grid > .card, .plans-grid > .plan-card{ grid-column: span 6; }
}
@media (max-width: 640px){
  .menu{ position: fixed; inset: 56px 1rem auto 1rem; background: #0f131d; border:1px solid var(--stroke); border-radius:.8rem; padding:.6rem; display:none; flex-direction:column; }
  .menu.show{ display:flex; }
  .nav-toggle{ display:block; }
  .features-grid > .card, .plans-grid > .plan-card{ grid-column: 1 / -1; }
  .hero{ padding-top: 6.8rem; }
}