:root{
  --bg: #050b10;
  --panel: rgba(10, 18, 26, .62);
  --panel-2: rgba(10, 18, 26, .42);
  --border: rgba(255,255,255,.10);
  --text: rgba(255,255,255,.90);
  --muted: rgba(255,255,255,.70);
  --muted2: rgba(255,255,255,.55);
  --accent: #2FE7D3;
  --accent2: #19B8FF;
  --shadow: 0 20px 60px rgba(0,0,0,.55);
  --radius: 18px;
  --radius2: 26px;
  --container: 1180px;
}

*{ box-sizing:border-box; }
html, body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
  overflow-x:hidden;
}

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }

.container{
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

/* Header */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: linear-gradient(to bottom, rgba(0,0,0,.55), rgba(0,0,0,.25));
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.header-inner{
  height: 74px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 18px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  min-width: 160px;
}
.brand-mark{ width:28px; height:28px; }
.brand-name{
  font-weight: 700;
  letter-spacing: .2px;
}

.nav{
  display:flex;
  align-items:center;
  gap: 18px;
}
.nav-link{
  font-size: 14px;
  color: var(--muted2);
  padding: 10px 10px;
  border-radius: 12px;
}
.nav-link:hover{ color: var(--text); background: rgba(255,255,255,.04); }

.nav-toggle{
  display:none;
  width:44px; height:44px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(10,18,26,.35);
  backdrop-filter: blur(10px);
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  height:2px;
  width:18px;
  margin: 5px auto;
  background: rgba(255,255,255,.85);
  border-radius: 99px;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .2px;
  border: 1px solid transparent;
  user-select:none;
  cursor:pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.btn:active{ transform: translateY(1px); }

.btn-primary{
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: rgba(0,0,0,.85);
}
.btn-primary:hover{ filter: brightness(1.05); }

.btn-ghost{
  background: rgba(255,255,255,.04);
  border-color: rgba(255,255,255,.10);
  color: var(--text);
}
.btn-ghost:hover{ background: rgba(255,255,255,.06); }

.btn-cta{ padding: 12px 18px; }

/* Sections + background images */
.section{
  position: relative;
  padding: 84px 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
  overflow:hidden;
}

.section::before{
  content:"";
  position:absolute;
  inset:0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: scale(1.02);
  opacity: 1;
  z-index: 0;
}

.section::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(1200px 520px at 12% 20%, rgba(47,231,211,.16), transparent 60%),
    radial-gradient(900px 420px at 88% 12%, rgba(25,184,255,.13), transparent 55%),
    linear-gradient(to bottom, rgba(5,11,16,.82), rgba(5,11,16,.92));
  z-index: 1;
}

.section > .container{
  position: relative;
  z-index: 2;
}

/* Background bindings */
.bg-hero::before{ background-image: url("../img/bg-hero.jpg"); }
.bg-how::before{ background-image: url("../img/bg-how.jpg"); }
.bg-for::before{ background-image: url("../img/bg-for.jpg"); }
.bg-faq::before{ background-image: url("../img/bg-faq.jpg"); }
.bg-contact::before{ background-image: url("../img/bg-contact.jpg"); }

/* Hero */
.section-hero{ padding: 86px 0 70px; border-bottom: 1px solid rgba(255,255,255,.06); }
.hero-grid{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 28px;
  align-items: start;
}

.chip-row{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.chip{
  font-size: 13px;
  color: rgba(255,255,255,.82);
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  backdrop-filter: blur(10px);
}

.hero-title{
  margin: 0 0 14px 0;
  font-size: clamp(38px, 4.2vw, 58px);
  line-height: 1.02;
  letter-spacing: -0.9px;
}
.accent{
  color: var(--accent);
  text-shadow: 0 0 20px rgba(47,231,211,.16);
}
.hero-subtitle{
  margin: 0 0 20px 0;
  font-size: 18px;
  line-height: 1.55;
  color: var(--muted);
  max-width: 56ch;
}

.hero-actions{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.mini-cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 14px;
}
.mini-card{
  border-radius: var(--radius);
  background: rgba(10,18,26,.40);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 18px 60px rgba(0,0,0,.28);
  padding: 14px 14px;
  backdrop-filter: blur(10px);
}
.mini-kicker{ color: var(--muted2); font-size: 12px; margin-bottom: 6px; }
.mini-value{ font-weight: 800; font-size: 14px; }

.hero-media{
  display:grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.media-card{
  border-radius: var(--radius2);
  background: rgba(10,18,26,.40);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.media-card img{
  width:100%;
  height:auto;
  object-fit: cover;
}
.media-card--phone img{
  aspect-ratio: 16 / 10;
  object-position: center;
}
.media-caption{
  padding: 10px 14px;
  font-size: 12px;
  color: rgba(255,255,255,.62);
  border-top: 1px solid rgba(255,255,255,.06);
  background: rgba(0,0,0,.18);
}

.fade-bottom{
  position:absolute;
  left:0; right:0; bottom:0;
  height: 110px;
  background: linear-gradient(to bottom, transparent, rgba(5,11,16,1));
  z-index: 3;
}

/* Headings */
.section-head{ margin-bottom: 22px; }
.eyebrow{
  font-size: 12px;
  letter-spacing: 3px;
  color: rgba(47,231,211,.75);
  margin-bottom: 8px;
}
.h2{
  margin: 0 0 8px 0;
  font-size: clamp(28px, 3vw, 40px);
  letter-spacing: -0.5px;
}
.h3{
  margin: 0 0 8px 0;
  font-size: 18px;
  letter-spacing: -0.2px;
}
.p{
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 16px;
}

/* Cards / grids */
.steps, .audiences{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card{
  padding: 18px 18px;
  border-radius: var(--radius2);
  background: rgba(10,18,26,.45);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 18px 60px rgba(0,0,0,.25);
  backdrop-filter: blur(10px);
}
.icon{
  font-size: 20px;
  width: 42px; height: 42px;
  display:grid; place-items:center;
  border-radius: 14px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.10);
  margin-bottom: 10px;
}

.cta-band{
  margin-top: 18px;
  padding: 18px 18px;
  border-radius: var(--radius2);
  background: rgba(10,18,26,.50);
  border: 1px solid rgba(255,255,255,.10);
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 14px;
  backdrop-filter: blur(10px);
}
.cta-text .p{ margin-top: 4px; }

/* FAQ */
.faq{
  display:grid;
  gap: 10px;
  max-width: 880px;
}
.faq-item{
  border-radius: 18px;
  background: rgba(10,18,26,.48);
  border: 1px solid rgba(255,255,255,.10);
  padding: 6px 14px;
  backdrop-filter: blur(10px);
}
.faq-item summary{
  cursor:pointer;
  padding: 12px 4px;
  font-weight: 800;
  color: rgba(255,255,255,.90);
}
.faq-body{
  padding: 0 4px 14px 4px;
  color: var(--muted);
  line-height: 1.6;
}

/* Contact */
.contact-card{
  border-radius: 26px;
  background: rgba(10,18,26,.55);
  border: 1px solid rgba(255,255,255,.10);
  padding: 22px;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 14px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.contact-right{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items:center;
  justify-content:flex-end;
}
.mail-pill{
  padding: 12px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  color: rgba(255,255,255,.85);
  display:inline-flex;
  align-items:center;
  gap: 10px;
}
.mail-pill:hover{ background: rgba(255,255,255,.06); }

.footer{
  margin-top: 18px;
  padding: 16px 2px 0 2px;
  color: rgba(255,255,255,.55);
  border-top: 1px solid rgba(255,255,255,.06);
  display:flex;
  justify-content: space-between;
  align-items:center;
}

/* Back to top */
.to-top{
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(10,18,26,.55);
  color: rgba(255,255,255,.9);
  backdrop-filter: blur(10px);
  box-shadow: 0 18px 50px rgba(0,0,0,.35);
  cursor:pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease;
  z-index: 60;
}
.to-top.show{
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .mini-cards{ grid-template-columns: 1fr; }
  .steps, .audiences{ grid-template-columns: 1fr; }
  .cta-band{ flex-direction: column; align-items:flex-start; }
  .contact-card{ flex-direction: column; align-items:flex-start; }
  .contact-right{ justify-content:flex-start; }
}

/* Mobile nav */
@media (max-width: 860px){
  .nav-toggle{ display:inline-block; }
  .nav{
    position: fixed;
    top: 74px;
    right: 14px;
    left: 14px;
    padding: 14px;
    border-radius: 22px;
    background: rgba(5,11,16,.82);
    border: 1px solid rgba(255,255,255,.10);
    backdrop-filter: blur(14px);
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .16s ease, transform .16s ease;
  }
  .nav.open{
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  .nav-link{ padding: 12px 12px; }
  .btn-cta{ width: 100%; justify-content:center; }
}