/* :root {
  --accent: #0d6efd;
  --bg: #f6f8fb;
  --card: #ffffff;
  --muted: #6c757d;
  --text: #0b1a26;
  --radius: 12px;
  --container-max: 1100px;
  --gap: 20px;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
} */

:root{
  --accent: #0d6efd;
  --bg: #f6f8fb;
  --card: #ffffff;
  --muted: #6c757d;
  --text: #0b1a26;
  --radius: 12px;
  --container-max: 1100px;
  --gap: 20px;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

*{box-sizing:border-box}

html,body{height:100%}

body{
  margin:0;
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
  font-size:16px;
}

/* Layout container */
.container{
  max-width:var(--container-max);
  margin:0 auto;
  padding:24px;
}

/* Skip link */
.skip-link{
  position:absolute;
  left:-999px;
  top:auto;
  width:1px;
  height:1px;
  overflow:hidden;
}
.skip-link:focus{
  left:12px;
  top:12px;
  width:auto;
  height:auto;
  padding:8px 12px;
  background:#fff;
  border-radius:6px;
  box-shadow:0 6px 20px rgba(8,17,28,0.12);
  z-index:1000;
}

/* Header */
.site-header{
  background:linear-gradient(180deg, rgba(255,255,255,0.9), rgba(255,255,255,0.7));
  backdrop-filter: blur(6px);
  position:sticky;
  top:0;
  z-index:40;
  border-bottom:1px solid rgba(11,26,40,0.04);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--gap);
  padding:14px 0;
}

/* Brand (logo) */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.brand-link{
  display:inline-block;
  text-decoration:none;
}
.brand-logo{
  height:64px; /* larger, clearly visible but not overwhelming */
  width:auto;
  display:block;
  border-radius:6px;
  box-shadow: 0 4px 14px rgba(11,26,40,0.06);
}

/* Nav (desktop) */
.main-nav{
  display:flex;
  gap:12px;
  align-items:center;
}
.main-nav a{
  color:var(--text);
  text-decoration:none;
  padding:8px 10px;
  border-radius:8px;
  font-weight:500;
  transition:background .15s, color .15s, transform .08s;
}
.main-nav a:hover,
.main-nav a:focus{background:rgba(13,110,253,0.08); color:var(--accent); transform:translateY(-1px)}

/* Mobile nav toggle (desktop-hidden by default) */
.nav-toggle{
  display:none;
  background:transparent;
  border:0;
  padding:8px;
  border-radius:8px;
  cursor:pointer;
  z-index:220;
}
.nav-toggle .bar{
  display:block;
  width:22px;
  height:2px;
  background:var(--text);
  margin:4px 0;
  border-radius:2px;
}

/* Hero */
.hero{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
  align-items:center;
  padding:48px 0;
}
.hero-card{
  background:linear-gradient(180deg,#fff,#fcfdff);
  border-radius:14px;
  padding:28px;
  box-shadow:0 8px 30px rgba(11,26,40,0.06);
}
.hero-card h1{
  margin:0 0 8px;
  font-size:1.9rem;
  letter-spacing:-0.5px;
}
.lead{font-size:1.05rem;color:#253746;margin-bottom:6px}
.kv{color:var(--muted);font-size:0.9rem}

/* CTA - ensure always visible / clickable */
.cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--accent);
  color:#fff;
  padding:10px 18px;
  border-radius:8px;
  text-decoration:none;
  font-weight:700;
  border:0;
  cursor:pointer;
  z-index:20;
  opacity:1;
  visibility:visible;
  pointer-events:auto;
  transition:background 0.15s ease, transform 0.08s ease, box-shadow 0.12s ease;
}
.cta:hover,
.cta:focus{background:#0b5ed7; transform:translateY(-2px); box-shadow:0 8px 20px rgba(11,26,40,0.08);}

/* Cards + grid */
.section{padding:40px 0}
h2{font-size:1.6rem;margin:0 0 18px}
.grid{
  display:grid;
  gap:20px;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
}
.card{
  background:var(--card);
  padding:18px;
  border-radius:12px;
  box-shadow:0 6px 20px rgba(8,17,28,0.04);
}
.card h3{margin-top:0;color:var(--accent)}

/* Reveal helper */
.reveal-fade{opacity:0;transform:translateY(8px);transition:opacity .6s, transform .6s}
.reveal-fade.show{opacity:1;transform:none}

/* POS/ATM demo tweaks */
.pos-demo-wrapper, .atm-demo-wrapper{max-width:420px;margin:0 auto}
.pos-device, .atm-device{
  background:#213444;
  color:#fff;
  border-radius:12px;
  padding:18px;
  box-shadow:0 12px 40px rgba(9,30,45,0.12);
  display:inline-block;
  width:100%;
  max-width:360px;
}
.pos-screen, .atm-screen{
  background:linear-gradient(180deg,#148fe6,#0d6efd);
  border-radius:8px;
  padding:12px;
}
.screen-content .screen-line{font-family:monospace;font-weight:700;color:#fff;margin:4px 0}
.card-mock, .atm-card-mock{
  background:#ff8a4b;
  color:#fff;
  border-radius:8px;
  padding:8px 12px;
  transition:transform .6s;
  display:inline-block;
}
.card-mock.inserted, .atm-card-mock.inserted{transform:translateY(0)}
.card-mock{transform:translateY(60px) rotate(-6deg)}
.atm-card-mock{transform:translateY(0)}
.processing-dots span{display:inline-block;width:6px;height:6px;margin:0 3px;background:#fff;border-radius:50%;animation:bounce .6s infinite alternate}
@keyframes bounce{from{transform:translateY(0)}to{transform:translateY(-6px)}}

/* Footer */
.site-footer{
  margin-top:48px;
  padding:20px 0;
  background:#fff;
  border-top:1px solid rgba(11,26,40,0.04);
}
.footer-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;align-items:center}
.footer-contact a{color:var(--accent);text-decoration:none}
.muted{color:var(--muted);font-size:0.9rem}

/* Utilities */
.small{font-size:0.95rem;color:var(--muted)}
.kv{color:var(--muted)}

/* Mobile-specific menu improvements */
@media (max-width:860px){
  .header-inner{align-items:flex-start}
  .nav-toggle{display:inline-flex}

  /* Full-screen mobile overlay menu */
  .main-nav{
    position:fixed;
    inset:0;
    display:none;
    flex-direction:column;
    gap:12px;
    background:linear-gradient(180deg, #ffffff, #f8fbff);
    padding:80px 20px 40px;
    border-radius:0;
    box-shadow:none;
    width:100%;
    height:100vh;
    z-index:200;
    align-items:flex-start;
    overflow:auto;
    -webkit-overflow-scrolling:touch;
    transition:opacity .12s ease, transform .18s ease;
    opacity:0;
    transform:translateY(-6px);
  }

  .site-header.nav-open .main-nav{
    display:flex;
    opacity:1;
    transform:none;
  }

  .main-nav .nav-close{
    display:inline-flex;
    align-self:flex-end;
    background:transparent;
    border:0;
    font-size:30px;
    line-height:1;
    padding:6px 8px;
    margin-bottom:6px;
    cursor:pointer;
    color:var(--muted);
  }

  .main-nav a{
    display:block;
    padding:14px 10px;
    font-size:1.05rem;
    font-weight:700;
    color:var(--text);
    width:100%;
    border-radius:8px;
    text-decoration:none;
  }

  .main-nav a + a{margin-top:6px}

  .main-nav a:hover,
  .main-nav a:focus{background:rgba(13,110,253,0.06); color:var(--accent)}

  /* ensure CTA inside demo wrappers remains visible on mobile */
  .pos-explain .cta,
  .atm-explain .cta{
    display:inline-flex !important;
  }

  /* Reduce logo slightly on narrow screens so it doesn't crowd the toggle */
  .brand-logo{
    height:48px;
  }
}

/* Very small screens */
@media (max-width:420px){
  .brand-logo{
    height:40px;
  }
}