/* ============================================================
   ZERO — Landing Page
   Dark theme, brand cyan→blue gradient, violet reserved for Premium
============================================================ */

:root{
  --bg:#060a0f;
  --bg-card:#0d141d;
  --bg-card-hi:#121b27;
  --line:rgba(255,255,255,.07);
  --text:#f3f6fa;
  --text-sub:#9aabbe;
  --text-mute:#5d6c7e;
  --cyan:#00c6ff;
  --blue:#0072ff;
  --grad:linear-gradient(135deg,#00c6ff 0%,#0072ff 100%);
  --violet:#7c5cff;
  --violet-soft:rgba(124,92,255,.14);
  --radius-lg:28px;
  --radius-md:20px;
  --ease:cubic-bezier(.22,.9,.32,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.5;
  overflow-x:hidden;
  -webkit-tap-highlight-color:transparent;
}
button{font-family:inherit;-webkit-tap-highlight-color:transparent}
img{display:block;max-width:100%}
.hidden{display:none!important}

/* ---------- ambient backdrop ---------- */
.ambient-grid{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
                    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:radial-gradient(ellipse 70% 50% at 50% 0%,#000 0%,transparent 70%);
}
.ambient-glow{position:fixed;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0;opacity:.5}
.glow-a{width:520px;height:520px;background:radial-gradient(circle,rgba(0,198,255,.22),transparent 70%);top:-180px;left:-160px}
.glow-b{width:480px;height:480px;background:radial-gradient(circle,rgba(0,114,255,.16),transparent 70%);top:30%;right:-200px}

main,header,footer{position:relative;z-index:1}

/* ============================================================
   HEADER
============================================================ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;
  background:rgba(6,10,15,.7);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:34px;height:34px}
.brand-pulse{transform-origin:center;animation:pulseDot 2s infinite ease-in-out}
@keyframes pulseDot{0%,100%{transform:scale(.9);opacity:.6}50%{transform:scale(1.25);opacity:1}}
.brand-word{
  font-weight:800;font-size:1.35rem;letter-spacing:2.5px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.site-nav{display:flex;gap:28px}
.site-nav a{color:var(--text-sub);text-decoration:none;font-size:.88rem;font-weight:500;transition:color .2s}
.site-nav a:hover{color:var(--cyan)}
.nav-cta{
  background:var(--grad);color:#fff;border:none;padding:10px 20px;border-radius:30px;
  font-size:.85rem;font-weight:700;cursor:pointer;box-shadow:0 3px 14px rgba(0,114,255,.35);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,114,255,.45)}

/* ============================================================
   HERO
============================================================ */
.hero{
  min-height:100vh;display:flex;align-items:center;gap:40px;
  padding:120px 6% 60px;flex-wrap:wrap;
}
.hero-copy{flex:1 1 480px;max-width:600px;z-index:2}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(0,198,255,.1);border:1px solid rgba(0,198,255,.18);
  padding:7px 14px;border-radius:30px;margin-bottom:22px;
  font-size:.78rem;font-weight:600;color:var(--cyan);letter-spacing:.3px;
}
.eyebrow-dot{width:7px;height:7px;background:var(--cyan);border-radius:50%;animation:pulseDot 1.6s infinite}
.hero-title{font-size:clamp(2.4rem,5.6vw,4.2rem);font-weight:800;line-height:1.12;letter-spacing:-1px;margin-bottom:22px}
.hero-title .line{display:block}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{font-size:1.08rem;color:var(--text-sub);max-width:520px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}

.btn{
  display:inline-flex;align-items:center;gap:9px;border:none;border-radius:40px;
  font-weight:700;font-size:.96rem;cursor:pointer;padding:14px 28px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 22px rgba(0,114,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,114,255,.45)}
.btn-ghost{background:rgba(255,255,255,.05);color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(0,198,255,.3)}
.btn-block{width:100%;justify-content:center}
.btn-lg{padding:17px 36px;font-size:1.05rem}

.hero-trustline{display:flex;gap:26px;flex-wrap:wrap;font-size:.82rem;color:var(--text-mute)}
.hero-trustline strong{color:var(--cyan);font-weight:800}

/* ---- hero radar visual ---- */
.hero-visual{flex:1 1 320px;display:flex;justify-content:center;align-items:center;min-width:280px}
.radar-stage{position:relative;width:min(340px,80vw);height:min(340px,80vw)}
.radar-ripple{
  position:absolute;top:50%;left:50%;border:1.5px solid rgba(0,198,255,.35);
  border-radius:50%;transform:translate(-50%,-50%);animation:rippleOut 3s var(--ease) infinite;
}
.radar-ripple.r1{width:30%;height:30%;animation-delay:0s}
.radar-ripple.r2{width:30%;height:30%;animation-delay:1s}
.radar-ripple.r3{width:30%;height:30%;animation-delay:2s}
@keyframes rippleOut{0%{width:20%;height:20%;opacity:.8}100%{width:100%;height:100%;opacity:0}}

.radar-sweep{
  position:absolute;top:0;left:0;width:100%;height:100%;border-radius:50%;
  background:conic-gradient(from 0deg,rgba(0,198,255,.35),transparent 35%);
  animation:sweepSpin 3.2s linear infinite;
  mask-image:radial-gradient(circle,transparent 0%,#000 60%,#000 100%);
}
@keyframes sweepSpin{to{transform:rotate(360deg)}}

.radar-core{position:absolute;top:50%;left:50%;width:46%;height:46%;transform:translate(-50%,-50%);opacity:.92;filter:drop-shadow(0 0 18px rgba(0,198,255,.35))}

.ping{position:absolute;width:9px;height:9px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px rgba(0,198,255,.9);animation:pingFade 2.6s var(--ease) infinite}
.ping-1{top:22%;left:30%;animation-delay:.2s}
.ping-2{top:62%;left:74%;animation-delay:1.1s}
.ping-3{top:74%;left:24%;animation-delay:1.8s}
.ping-4{top:18%;left:70%;animation-delay:.7s}
@keyframes pingFade{0%{opacity:0;transform:scale(.4)}30%{opacity:1;transform:scale(1)}70%{opacity:1}100%{opacity:0;transform:scale(.6)}}

/* ============================================================
   MARQUEE
============================================================ */
.marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.015);padding:14px 0}
.marquee-track{display:flex;gap:18px;white-space:nowrap;width:max-content;animation:marqueeScroll 26s linear infinite}
.marquee-track span{font-size:.78rem;font-weight:700;letter-spacing:1.5px;color:var(--text-mute)}
.marquee-track span:nth-child(2n){color:var(--cyan);opacity:.7}
@keyframes marqueeScroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ============================================================
   SECTION HEAD (shared)
============================================================ */
.section-head{text-align:center;max-width:680px;margin:0 auto 50px;padding:0 20px}
.tag{
  display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:2px;
  color:var(--cyan);background:rgba(0,198,255,.1);padding:6px 14px;border-radius:30px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:800;letter-spacing:-.5px;line-height:1.25}
.pricing-sub{color:var(--text-sub);margin-top:14px;font-size:1rem}

/* ============================================================
   HOW IT WORKS
============================================================ */
.how{padding:90px 6% 40px}
.how-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;max-width:1100px;margin:0 auto}
.how-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:30px 26px;opacity:0;transform:translateY(24px);transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.how-card.visible{opacity:1;transform:translateY(0)}
.how-num{font-size:2.1rem;margin-bottom:16px}
.how-card h3{font-size:1.18rem;margin-bottom:10px}
.how-card p{color:var(--text-sub);font-size:.92rem;line-height:1.65}

/* ============================================================
   FEATURES
============================================================ */
.features{padding:90px 6%}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;max-width:1180px;margin:0 auto}
.feature-card{
  background:var(--bg-card);padding:28px;border-radius:var(--radius-md);border:1px solid var(--line);
  transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;
  opacity:0;transform:translateY(24px);
}
.feature-card.visible{opacity:1;transform:translateY(0);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.feature-card:hover{transform:translateY(-6px);border-color:rgba(0,198,255,.25);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.f-icon{font-size:2.1rem;margin-bottom:16px}
.feature-card h3{font-size:1.12rem;margin-bottom:8px}
.feature-card p{color:var(--text-sub);font-size:.9rem;line-height:1.6}

/* ============================================================
   SECURITY
============================================================ */
.security{display:flex;align-items:center;gap:60px;padding:90px 6%;flex-wrap:wrap}
.security-copy{flex:1 1 420px;opacity:0;transform:translateX(-26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.security-copy.visible{opacity:1;transform:translateX(0)}
.security-copy h2{font-size:clamp(1.8rem,3.4vw,2.5rem);font-weight:800;margin:14px 0 18px;letter-spacing:-.5px}
.security-lead{color:var(--text-sub);font-size:1rem;line-height:1.7;margin-bottom:34px}
.security-stats{display:flex;gap:36px;flex-wrap:wrap;margin-bottom:28px}
.stat-num{font-size:2rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-lbl{font-size:.8rem;color:var(--text-sub);margin-top:4px;max-width:140px}
.link-btn{background:none;border:none;color:var(--cyan);font-weight:700;font-size:.92rem;cursor:pointer;padding:0}
.link-btn:hover{text-decoration:underline}

.security-visual{flex:1 1 280px;display:flex;justify-content:center;opacity:0;transform:translateX(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.security-visual.visible{opacity:1;transform:translateX(0)}
.shield-stage{position:relative;width:220px;height:220px;display:flex;align-items:center;justify-content:center}
.shield-svg{width:62%;height:62%;filter:drop-shadow(0 0 16px rgba(0,114,255,.35));animation:shieldGlow 3s ease-in-out infinite;position:relative;z-index:2}
@keyframes shieldGlow{0%,100%{filter:drop-shadow(0 0 10px rgba(0,114,255,.3))}50%{filter:drop-shadow(0 0 22px rgba(0,198,255,.55))}}
.shield-orbit{position:absolute;inset:0;border-radius:50%;border:1.5px dashed rgba(0,198,255,.25);animation:orbitSpin 14s linear infinite}
@keyframes orbitSpin{to{transform:rotate(360deg)}}

/* ============================================================
   PRICING
============================================================ */
.pricing{padding:90px 6%}
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;max-width:760px;margin:0 auto}
.price-card{
  position:relative;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 30px;opacity:0;transform:translateY(24px);transition:opacity .6s var(--ease),transform .6s var(--ease);overflow:hidden;
}
.price-card.visible{opacity:1;transform:translateY(0)}
.price-card-premium{border-color:rgba(124,92,255,.35);background:linear-gradient(160deg,var(--bg-card) 0%,rgba(124,92,255,.06) 100%)}
.price-card-glow{position:absolute;top:-60px;right:-60px;width:160px;height:160px;background:radial-gradient(circle,rgba(124,92,255,.35),transparent 70%);filter:blur(20px);pointer-events:none}
.price-badge{
  position:absolute;top:18px;right:18px;background:var(--violet-soft);color:var(--violet);
  font-size:.68rem;font-weight:800;letter-spacing:1px;text-transform:uppercase;padding:5px 11px;border-radius:20px;
}
.price-card-head{margin-bottom:22px}
.price-card-head h3{font-size:1.05rem;color:var(--text-sub);font-weight:600;margin-bottom:10px}
.price-tag{display:flex;align-items:baseline;gap:8px}
.price-amt{font-size:2.6rem;font-weight:800;letter-spacing:-1px}
.price-period{font-size:.85rem;color:var(--text-mute)}
.price-list{list-style:none;margin-bottom:28px;display:flex;flex-direction:column;gap:11px}
.price-list li{font-size:.92rem;color:var(--text-sub);padding-left:24px;position:relative}
.price-list li::before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:800}
.price-card-premium .price-list li::before{color:var(--violet)}
.price-card-premium .btn-primary{background:linear-gradient(135deg,#7c5cff,#0072ff)}

/* ============================================================
   FINAL CTA
============================================================ */
.final-cta{padding:60px 6% 110px}
.final-cta-card{
  position:relative;max-width:760px;margin:0 auto;text-align:center;overflow:hidden;
  background:linear-gradient(150deg,var(--bg-card) 0%,rgba(0,114,255,.07) 100%);
  border:1px solid rgba(0,198,255,.2);border-radius:36px;padding:60px 32px;
  opacity:0;transform:scale(.96);transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.final-cta-card.visible{opacity:1;transform:scale(1)}
.final-cta-radar{
  position:absolute;top:50%;left:50%;width:600px;height:600px;transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(0,198,255,.08),transparent 60%);
  animation:slowSpin 18s linear infinite;pointer-events:none;
}
@keyframes slowSpin{to{transform:translate(-50%,-50%) rotate(360deg)}}
.final-cta-card h3{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;margin-bottom:14px;position:relative;z-index:1}
.final-cta-card p{color:var(--text-sub);margin-bottom:30px;position:relative;z-index:1}
.final-cta-card .btn{position:relative;z-index:1}

/* ============================================================
   FOOTER
============================================================ */
.site-footer{border-top:1px solid var(--line);padding:50px 6% 26px;background:rgba(255,255,255,.015)}
.footer-inner{max-width:1180px;margin:0 auto;display:flex;justify-content:space-between;gap:50px;flex-wrap:wrap;margin-bottom:34px}
.footer-brand p{color:var(--text-mute);font-size:.8rem;margin-top:8px;max-width:240px}
.footer-cols{display:flex;gap:50px;flex-wrap:wrap}
.footer-col h4{font-size:.78rem;text-transform:uppercase;letter-spacing:1px;color:var(--text-mute);margin-bottom:14px}
.footer-col a{display:block;color:var(--text-sub);text-decoration:none;font-size:.88rem;margin-bottom:10px;transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{max-width:1180px;margin:0 auto;border-top:1px solid var(--line);padding-top:20px;font-size:.78rem;color:var(--text-mute)}

/* ============================================================
   MODAL
============================================================ */
.modal-overlay{
  position:fixed;inset:0;background:rgba(3,6,10,.75);backdrop-filter:blur(6px);
  z-index:9000;display:flex;align-items:center;justify-content:center;padding:20px;
}
.modal-box{
  position:relative;background:var(--bg-card-hi);border:1px solid var(--line);border-radius:24px;
  max-width:560px;width:100%;max-height:82vh;overflow-y:auto;padding:38px 32px;
  box-shadow:0 30px 70px rgba(0,0,0,.5);
}
.modal-close{
  position:absolute;top:18px;right:18px;background:rgba(255,255,255,.06);border:none;color:var(--text-sub);
  width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:1rem;
}
.modal-close:hover{background:rgba(255,255,255,.12);color:var(--text)}
.modal-body h2{font-size:1.5rem;margin:10px 0 4px;font-weight:800}
.modal-updated{color:var(--text-mute);font-size:.78rem;margin-bottom:22px}
.modal-body h4{font-size:.95rem;margin:20px 0 8px;color:var(--cyan)}
.modal-body p{color:var(--text-sub);font-size:.9rem;line-height:1.7}
.modal-contact{margin-top:24px;border-top:1px solid var(--line);padding-top:18px}
.modal-contact a{color:var(--cyan);text-decoration:none}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width:860px){
  .site-nav{display:none}
  .security{flex-direction:column;text-align:center}
  .security-stats{justify-content:center}
  .security-copy,.security-visual{transform:none!important}
}
@media (max-width:560px){
  .hero{padding:108px 5% 50px;text-align:center;justify-content:center}
  .hero-copy{text-align:center}
  .hero-actions{justify-content:center}
  .hero-trustline{justify-content:center}
  .nav-cta{padding:8px 16px;font-size:.78rem}
  .price-card{padding:28px 22px}
  .final-cta-card{padding:46px 22px}
  .footer-inner{gap:30px}
}
@media (max-width:380px){
  .hero-title{font-size:2.1rem}
  .btn{padding:13px 22px;font-size:.9rem}
}

/* ============================================================
   REDUCED MOTION
============================================================ */
.reduced-motion *{animation:none!important;transition:none!important}

/* ============================================================
   ACCESSIBILITY — focus states
============================================================ */
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}