@import url('https://fonts.googleapis.com/css2?family=Sora:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500&display=swap');

:root{
  --ink: #070B18;
  --ink-soft: #101730;
  --ink-card: #131B38;
  --blue: #3D7BFF;
  --blue-deep: #2555D9;
  --cyan: #48EAD1;
  --violet: #8B6BFF;
  --paper: #F7F9FC;
  --paper-dim: #EEF2F9;
  --slate: #545F7D;
  --white: #FFFFFF;
  --line: rgba(15,20,36,0.09);
  --line-dark: rgba(255,255,255,0.10);
  --shadow-lg: 0 30px 60px -20px rgba(11,20,60,0.18);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3{
  font-family: 'Sora', sans-serif;
  margin: 0;
  letter-spacing: -0.02em;
}

a{ color: inherit; text-decoration: none; }
.eyebrow{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before{
  content: "";
  width: 7px; height: 7px;
  background: var(--cyan);
  clip-path: polygon(29% 0, 71% 0, 100% 29%, 100% 71%, 71% 100%, 29% 100%, 0 71%, 0 29%);
}

/* ---------- Octagon signature shapes ---------- */
.oct{
  clip-path: polygon(29% 0, 71% 0, 100% 29%, 100% 71%, 71% 100%, 29% 100%, 0 71%, 0 29%);
}

/* ---------- Nav ---------- */
.nav{
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 6vw;
  background: rgba(247,249,252,0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-left{ display:flex; align-items:center; gap:14px; }
.nav-logo{ height: 28px; display:block; }
.nav-links{ display:flex; gap: 34px; font-size: 0.92rem; font-weight: 500; }
.nav-links a{ color: var(--slate); transition: color .15s; }
.nav-links a:hover, .nav-links a.active{ color: var(--ink); }
.nav-cta{
  display:flex; align-items:center; gap:8px;
  background: var(--ink);
  color: var(--white) !important;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.85rem; font-weight: 600;
  box-shadow: 0 8px 20px -6px rgba(7,11,24,0.4);
}
.nav-cta:hover{ background: var(--blue-deep); }

@media (max-width: 820px){
  .nav-links{ display:none; }
}

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex; align-items:center; gap:10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600; font-size: 0.94rem;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary{ background: linear-gradient(135deg, var(--blue), var(--blue-deep)); color: var(--white); box-shadow: 0 14px 30px -10px rgba(61,123,255,0.55); }
.btn-primary:hover{ filter: brightness(1.08); }
.btn-ghost{ border-color: var(--line); color: var(--ink); }
.btn-ghost:hover{ border-color: var(--ink); }
.btn-ghost.on-dark{ border-color: var(--line-dark); color: var(--white); }
.btn-ghost.on-dark:hover{ border-color: rgba(255,255,255,0.5); }
.btn-dark{ background: var(--ink); color: var(--white); }
.btn-dark:hover{ background: var(--ink-soft); }

/* ---------- Sections shared ---------- */
section{ padding: 110px 6vw; }
.section-head{ max-width: 640px; margin-bottom: 60px; }
.section-head h2{ font-size: clamp(1.9rem, 3.2vw, 2.7rem); margin-top: 14px; }
.section-head p{ color: var(--slate); margin-top: 16px; line-height: 1.65; font-size: 1.02rem; }
.center{ margin-left:auto; margin-right:auto; text-align:center; }

.dark{
  background: radial-gradient(ellipse 80% 60% at 20% -10%, rgba(61,123,255,0.25), transparent 60%),
              radial-gradient(ellipse 60% 50% at 90% 110%, rgba(139,107,255,0.2), transparent 60%),
              var(--ink);
  color: var(--white);
}
.dark .slate-text{ color: rgba(255,255,255,0.62); }

/* ---------- Trust / logo bar ---------- */
.trust-bar{
  padding: 36px 6vw;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display:flex; align-items:center; gap: 40px; flex-wrap:wrap;
}
.trust-bar .label{ font-family:'IBM Plex Mono',monospace; font-size:0.74rem; letter-spacing:0.1em; color:var(--slate); text-transform:uppercase; white-space:nowrap; }
.trust-items{ display:flex; gap: 34px; flex-wrap:wrap; font-family:'Sora',sans-serif; font-weight:600; color: var(--slate); opacity:0.75; font-size:0.95rem; }

/* ---------- Glass card ---------- */
.glass-card{
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 22px;
  backdrop-filter: blur(6px);
}

/* ---------- FAQ ---------- */
.faq-item{
  border-top: 1px solid var(--line);
  padding: 26px 0;
}
.faq-item:last-child{ border-bottom: 1px solid var(--line); }
.faq-q{
  display:flex; align-items:center; justify-content:space-between;
  cursor:pointer; font-family:'Sora',sans-serif; font-weight:600; font-size:1.02rem;
}
.faq-q .plus{ font-size:1.3rem; color: var(--blue); transition: transform .2s; }
.faq-item.open .plus{ transform: rotate(45deg); }
.faq-a{
  max-height: 0; overflow:hidden; transition: max-height .25s ease;
  color: var(--slate); line-height:1.65; font-size:0.95rem;
}
.faq-item.open .faq-a{ max-height: 300px; margin-top: 14px; }

/* ---------- Footer ---------- */
footer{
  background: var(--ink);
  color: rgba(255,255,255,0.7);
  padding: 70px 6vw 32px;
}
.footer-top{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line-dark);
}
.footer-top h4{
  color: var(--white); font-family: 'Sora', sans-serif;
  font-size: 0.92rem; margin-bottom: 16px;
}
.footer-top ul{ list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:10px; font-size: 0.9rem; }
.footer-top ul a:hover{ color: var(--cyan); }
.footer-seo{ font-size: 0.82rem; line-height: 1.7; color: rgba(255,255,255,0.4); max-width: 900px; margin: 24px 0 0; }
.footer-bottom{
  display:flex; justify-content: space-between; align-items:center;
  padding-top: 24px; font-size: 0.82rem; flex-wrap: wrap; gap:12px;
}
.footer-logo-wrap{ display:inline-block; background: var(--white); padding: 8px 14px; border-radius: 10px; margin-bottom: 16px; }
.footer-logo{ height: 22px; display:block; }

@media (max-width: 820px){
  .footer-top{ grid-template-columns: 1fr 1fr; }
  section{ padding: 76px 6vw; }
}