/* ===================== TOKENS ===================== */
:root{
  --bg: #050505;
  --bg-alt: #0a0a0a;
  --surface: #0d0d0d;
  --surface-2: #151515;
  --border: rgba(255,255,255,0.09);
  --border-strong: rgba(235,235,235,0.4);
  --text: #f2f2f0;
  --text-dim: #a0a0a0;
  --text-faint: #63635f;
  --accent: #f2f2f0;
  --accent-2: #9c9c98;
  --accent-deep: #2a2a28;
  --danger: #ff6b6b;
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1180px;
  --font-display: 'JetBrains Mono', monospace;
  --font-body: 'JetBrains Mono', monospace;
  --font-mono: 'JetBrains Mono', monospace;
}

*{ box-sizing: border-box; margin:0; padding:0; }
html{ scroll-behavior: smooth; }
body{
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
img{ max-width:100%; display:block; }
::selection{ background: var(--accent); color:#0a0a0a; }

::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background: var(--bg); }
::-webkit-scrollbar-thumb{ background: #1c1c1c; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover{ background: var(--accent-2); }

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow{ max-width: 760px; }

.text-gradient{
  background: linear-gradient(100deg, #ffffff 0%, #e4e4e0 45%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===================== BACKGROUND FX ===================== */
.noise-overlay{
  position: fixed; inset:0; z-index: 2; pointer-events:none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}
#fx-canvas{
  position: fixed; inset:0; z-index:1; pointer-events:none;
}

/* ===================== NAV ===================== */
.nav{
  position: fixed; top:0; left:0; right:0; z-index: 100;
  padding: 18px 0;
  transition: all .35s ease;
}
.nav.scrolled{
  padding: 12px 0;
  background: rgba(6,7,6,0.75);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.nav-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display:flex; align-items:center; justify-content:space-between;
  gap: 24px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand-mark{
  display:inline-flex;
  filter: drop-shadow(0 0 8px rgba(255,255,255,0.35));
}
.brand-mark img{ width:34px; height:34px; object-fit:contain; }
.footer-brand-mark{ display:flex; align-items:center; gap:10px; margin-bottom: 2px; }
.footer-brand-mark img{ width:30px; height:30px; object-fit:contain; }
.brand-name{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
}
.nav-links{ display:flex; gap: 32px; }
.nav-links a{
  font-size: 0.9rem; color: var(--text-dim); font-weight:500;
  transition: color .2s ease;
  position: relative;
}
.nav-links a:hover{ color: var(--text); }
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:-6px; width:0; height:1px;
  background: var(--accent); transition: width .25s ease;
}
.nav-links a:hover::after{ width:100%; }

.nav-actions{ display:flex; align-items:center; gap:14px; }
.nav-burger{
  display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:6px;
}
.nav-burger span{ width:22px; height:2px; background:var(--text); border-radius:2px; transition:.3s; }

/* ===================== BUTTONS ===================== */
.btn{
  display: inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
  white-space: nowrap;
}
.btn-lg{ padding: 14px 28px; font-size: 0.95rem; }
.btn-primary{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0a0a0a;
  box-shadow: 0 0 0 rgba(255,255,255,0);
}
.btn-primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 8px 30px -6px rgba(255,255,255,0.55);
}
.btn-ghost{
  color: var(--text-dim);
}
.btn-ghost:hover{ color: var(--text); }
.btn-outline{
  border-color: var(--border);
  color: var(--text);
  background: rgba(255,255,255,0.02);
}
.btn-outline:hover{
  border-color: var(--border-strong);
  background: rgba(255,255,255,0.06);
  transform: translateY(-2px);
}

/* ===================== HERO ===================== */
.hero{
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center;
  padding: 140px 24px 108px;
  overflow:hidden;
}
.hero-grid{
  position:absolute; inset:-1px;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 60% 55% at 50% 30%, black 10%, transparent 75%);
  mask-image: radial-gradient(ellipse 60% 55% at 50% 30%, black 10%, transparent 75%);
  z-index:0;
}
.hero-glow{
  position:absolute; top:-10%; left:50%; transform:translateX(-50%);
  width: 900px; height: 700px;
  background: radial-gradient(circle, rgba(255,255,255,0.16) 0%, rgba(170,170,165,0.05) 45%, transparent 70%);
  z-index:0;
  filter: blur(10px);
}
.hero-emblem{
  position:absolute; top: 44%; left:50%;
  transform: translate(-50%, -50%);
  width: min(52vw, 620px);
  height: auto;
  opacity: 0.16;
  filter: grayscale(1) contrast(1.1);
  -webkit-mask-image: radial-gradient(ellipse 55% 55% at 50% 50%, black 30%, transparent 78%);
  mask-image: radial-gradient(ellipse 55% 55% at 50% 50%, black 30%, transparent 78%);
  z-index:0;
  pointer-events:none;
  user-select:none;
}
.hero-inner{ position:relative; z-index:2; max-width: 880px; }

.badge-pill{
  display:inline-flex; align-items:center; gap:8px;
  padding: 7px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
  font-size: 0.8rem; color: var(--text-dim);
  margin-bottom: 28px;
}
.dot-live{
  width:7px; height:7px; border-radius:50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(255,255,255,0.6);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot{
  0%{ box-shadow: 0 0 0 0 rgba(255,255,255,0.55); }
  70%{ box-shadow: 0 0 0 8px rgba(255,255,255,0); }
  100%{ box-shadow: 0 0 0 0 rgba(255,255,255,0); }
}

.hero-title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 6.5vw, 5.2rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 26px;
}
.hero-sub{
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--text-dim);
  max-width: 620px;
  margin: 0 auto 40px;
}
.hero-actions{
  display:flex; align-items:center; justify-content:center; gap:16px; flex-wrap:wrap;
  margin-bottom: 44px;
}
.hero-badges{
  display:flex; align-items:center; justify-content:center; gap: 12px 22px; flex-wrap:wrap;
}
.mini-badge{
  display:flex; align-items:center; gap:7px;
  font-size: 0.8rem; color: var(--text-faint);
  font-family: var(--font-mono);
}
.mini-badge svg{ color: var(--accent-2); flex-shrink:0; }

.scroll-cue{
  position:absolute; bottom: 32px; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:8px;
  z-index:2;
}
.scroll-cue span{
  width:1px; height:36px;
  background: linear-gradient(var(--accent), transparent);
  animation: scroll-cue-move 2s ease infinite;
}
.scroll-cue p{ font-size:0.68rem; letter-spacing:0.15em; text-transform:uppercase; color: var(--text-faint); }
@keyframes scroll-cue-move{
  0%{ opacity:0; transform: scaleY(0.3); transform-origin: top; }
  50%{ opacity:1; transform: scaleY(1); transform-origin: top; }
  100%{ opacity:0; transform: scaleY(0.3); transform-origin:bottom; }
}

/* ===================== STRIP ===================== */
.strip{
  position:relative; z-index:2;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 22px 0;
}
.strip-inner{
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap: 14px;
}
.strip-label{ font-size: 0.82rem; color: var(--text-faint); }
.strip-chain{ display:flex; align-items:center; gap:14px; flex-wrap:wrap; font-size:0.82rem; color: var(--text-dim); }
.chain-badge{ display:flex; align-items:center; gap:7px; font-weight:600; color: var(--text); font-family: var(--font-mono); }
.chain-dot{ width:7px; height:7px; border-radius:50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.strip-sep{ color: var(--text-faint); }

/* ===================== SECTIONS ===================== */
.section{ position:relative; z-index:2; padding: 84px 0; }
.section-alt{ background: linear-gradient(180deg, transparent, rgba(255,255,255,0.012) 15%, rgba(255,255,255,0.012) 85%, transparent); }

.section-head{ max-width: 640px; margin: 0 auto 44px; text-align:center; }
.eyebrow{
  display:inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-head h2{
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.section-sub{ color: var(--text-dim); font-size: 1.02rem; }

/* ===================== COMPARE ===================== */
.compare-grid{
  display:grid; grid-template-columns: 1fr auto 1fr;
  gap: 24px; align-items:stretch; max-width: 980px; margin: 0 auto;
}
.compare-card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  background: var(--surface);
}
.compare-tag{
  display:inline-block; font-family: var(--font-mono); font-size:0.72rem;
  letter-spacing:0.08em; text-transform:uppercase;
  padding: 5px 12px; border-radius:999px;
  background: rgba(255,107,107,0.1); color: var(--danger);
  margin-bottom: 22px;
}
.compare-tag-good{ background: rgba(255,255,255,0.12); color: var(--accent); }
.compare-card ul{ display:flex; flex-direction:column; gap:16px; }
.compare-card li{ display:flex; gap:10px; align-items:flex-start; font-size:0.94rem; color: var(--text-dim); line-height:1.45; }
.x-ico{ color: var(--danger); flex-shrink:0; font-size:0.85rem; margin-top:2px; }
.check-ico{ color: var(--accent); flex-shrink:0; font-size:0.85rem; margin-top:2px; }
.compare-good{ border-color: var(--border-strong); box-shadow: 0 0 60px -20px rgba(255,255,255,0.25) inset; }
.compare-vs{ display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px; }
.vs-line{ width:1px; flex:1; background: var(--border); }
.compare-vs span{ font-family: var(--font-mono); font-size:0.75rem; color: var(--text-faint); }

/* ===================== STEPS ===================== */
.steps{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 22px;
}
.step-card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  background: var(--surface);
  transition: border-color .25s ease, transform .25s ease, background .25s ease;
  position: relative;
  overflow: hidden;
}
.step-card:hover{
  border-color: var(--border-strong);
  transform: translateY(-4px);
  background: var(--surface-2);
}
.step-num{
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,0.4);
  margin-bottom: 18px;
}
.step-card h3{ font-family: var(--font-display); font-size:1.12rem; margin-bottom:10px; font-weight:600; }
.step-card p{ font-size: 0.9rem; color: var(--text-dim); line-height:1.55; }

/* ===================== ARCHITECTURE ===================== */
.arch-grid{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 56px;
}
.arch-card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  background: linear-gradient(180deg, var(--surface), var(--bg));
  transition: transform .25s ease, border-color .25s ease;
}
.arch-card:hover{ transform: translateY(-4px); border-color: var(--border-strong); }
.arch-ico{
  width: 48px; height:48px; border-radius: 12px;
  display:flex; align-items:center; justify-content:center;
  background: rgba(255,255,255,0.08); color: var(--accent);
  margin-bottom: 20px;
}
.arch-card h3{ font-family: var(--font-display); font-size:1.05rem; margin-bottom:10px; font-weight:600; }
.arch-card p{ font-size: 0.87rem; color: var(--text-dim); line-height:1.55; }

/* ---- Vertical, self-animating flow ---- */
.flow{
  position: relative;
  width: 100%;
  max-width: 300px;
  margin: 4px auto 0;
}
.flow-track{
  position: absolute;
  top: 30px; bottom: 30px; left: 50%;
  width: 2px; transform: translateX(-50%);
  background: var(--border);
  overflow: hidden; z-index: 0;
  border-radius: 2px;
}
.flow-pulse{
  position: absolute; left: -1px; right: -1px; top: -80px;
  height: 80px;
  background: linear-gradient(180deg, transparent, var(--accent) 55%, transparent);
  animation: flow-travel 3.6s cubic-bezier(.6,0,.4,1) infinite;
}
@keyframes flow-travel{
  0%{ top: -80px; opacity: 0; }
  8%{ opacity: 1; }
  92%{ opacity: 1; }
  100%{ top: 100%; opacity: 0; }
}
.flow-steps{
  position: relative; z-index: 2;
  display: flex; flex-direction: column; align-items: center;
  gap: 28px;
}
.flow-node{
  display:flex; flex-direction:column; align-items:center; gap:12px;
  text-align:center; font-size:0.85rem; color: var(--text-dim);
}
.flow-node p{ transition: color .35s ease; }
.flow-node small{ display:block; color: var(--text-faint); font-size:0.74rem; margin-top:3px; }
.flow-ico{
  width: 52px; height: 52px; border-radius: 50%;
  display:flex; align-items:center; justify-content:center;
  background: var(--bg); border: 1px solid var(--border);
  color: var(--text-dim);
  animation: flow-ping 3.6s ease-in-out infinite;
}
.flow-node:nth-child(1) .flow-ico{ animation-delay: 0s; }
.flow-node:nth-child(2) .flow-ico{ animation-delay: .9s; }
.flow-node:nth-child(3) .flow-ico{ animation-delay: 1.8s; }
.flow-node:nth-child(4) .flow-ico{ animation-delay: 2.7s; }
@keyframes flow-ping{
  0%{ border-color: var(--border); box-shadow: 0 0 0 0 rgba(255,255,255,0); color: var(--text-dim); transform: scale(1); }
  6%{ border-color: var(--border-strong); box-shadow: 0 0 26px -2px rgba(255,255,255,0.45); color: var(--text); transform: scale(1.08); }
  22%{ border-color: var(--border); box-shadow: 0 0 0 0 rgba(255,255,255,0); color: var(--text-dim); transform: scale(1); }
  100%{ border-color: var(--border); }
}
/* central vault = boxed */
.flow-node-main{
  padding: 20px 30px; border-radius: 16px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  box-shadow: 0 14px 50px -26px rgba(255,255,255,0.28);
  gap: 14px;
}
.flow-node-main .flow-ico{
  width: 46px; height: 46px; border-radius: 11px;
  border-color: var(--border-strong); color: var(--text);
}
.flow-node-main p{ font-weight: 700; font-size: 0.95rem; color: var(--text); }
@media (prefers-reduced-motion: reduce){
  .flow-pulse{ display:none; }
  .flow-ico{ animation:none; }
}

/* ===================== FAQ ===================== */
.faq-list{ display:flex; flex-direction:column; gap: 14px; }
.faq-item{
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  background: var(--surface);
}
.faq-item summary{
  cursor:pointer; font-weight:600; font-size:0.98rem;
  list-style:none; display:flex; justify-content:space-between; align-items:center; gap: 16px;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{
  content:'+'; font-size:1.3rem; color: var(--accent); flex-shrink:0;
  transition: transform .25s ease;
}
.faq-item[open] summary::after{ transform: rotate(45deg); }
.faq-item p{ color: var(--text-dim); font-size:0.9rem; margin-top:14px; line-height:1.6; }

/* ===================== CTA ===================== */
.cta-section{
  position:relative; z-index:2;
  padding: 110px 24px;
  text-align:center;
  border-top: 1px solid var(--border);
  background:
    radial-gradient(ellipse 60% 100% at 50% 0%, rgba(255,255,255,0.08), transparent 70%),
    var(--bg-alt);
}
.cta-inner h2{
  font-family: var(--font-display); font-weight:700;
  font-size: clamp(1.9rem, 4vw, 3rem);
  margin-bottom: 18px; letter-spacing:-0.01em;
}
.cta-inner p{ color: var(--text-dim); max-width: 520px; margin: 0 auto 36px; }
.cta-actions{ display:flex; align-items:center; justify-content:center; gap:16px; flex-wrap:wrap; }

/* ===================== FOOTER ===================== */
.footer{
  background: var(--bg); border-top: 1px solid var(--border);
  padding-top: 56px;
  padding-bottom: calc(30px + env(safe-area-inset-bottom, 0px));
  position: relative; z-index: 2;
}
.footer-inner{ display:flex; justify-content:space-between; gap: 60px; flex-wrap:wrap; padding-bottom: 44px; }
.footer-brand p{ color: var(--text-faint); font-size:0.85rem; margin-top:14px; line-height:1.6; }
.footer-cols{ display:flex; gap: 64px; flex-wrap:wrap; }
.footer-col h4{ font-size:0.82rem; color: var(--text); margin-bottom:16px; }
.footer-col{ display:flex; flex-direction:column; gap:12px; }
.footer-col a{ font-size:0.85rem; color: var(--text-faint); transition:color .2s; }
.footer-col a:hover{ color: var(--accent); }
.footer-bottom{
  display:flex; justify-content:space-between; gap: 16px; flex-wrap:wrap;
  padding: 22px 0 0; border-top: 1px solid var(--border);
  font-size: 0.78rem; color: var(--text-faint);
}
.footer-disclaimer{ max-width: 480px; text-align:right; }

/* ===================== REVEAL ANIM ===================== */
.reveal{
  opacity: 0;
  transform: translateY(42px) scale(.975);
  filter: blur(8px);
  transition: opacity .85s cubic-bezier(.16,.84,.28,1),
              transform .85s cubic-bezier(.16,.84,.28,1),
              filter .85s ease;
  transition-delay: var(--d, 0s);
  will-change: opacity, transform, filter;
}
.reveal.in-view{ opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
@media (prefers-reduced-motion: reduce){
  .reveal{ transition: opacity .4s ease; transform:none; filter:none; }
}

/* parallax targets get smoothed inline transforms */
.hero-emblem, .hero-inner, .hero-grid{ will-change: transform, opacity; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 980px){
  .steps{ grid-template-columns: repeat(2, 1fr); }
  .arch-grid{ grid-template-columns: repeat(2, 1fr); }
  .compare-grid{ grid-template-columns: 1fr; }
  .compare-vs{ flex-direction:row; padding: 8px 0; }
  .compare-vs .vs-line{ height:1px; width:auto; }
}
@media (max-width: 760px){
  .nav-links{
    position: fixed; top: 64px; left: 16px; right: 16px;
    flex-direction: column; gap: 0;
    background: rgba(10,12,10,0.97);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px;
    backdrop-filter: blur(20px);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    pointer-events: none;
    transition: transform .25s ease, opacity .2s ease;
  }
  .nav-links.open{ transform: scaleY(1); opacity:1; pointer-events:auto; }
  .nav-links a{ padding: 14px 12px; border-radius: 8px; }
  .nav-links a:hover{ background: rgba(255,255,255,0.04); }
  .nav-burger{ display:flex; }
  .nav-actions .btn-ghost{ display:none; }
  .steps{ grid-template-columns: 1fr; }
  .arch-grid{ grid-template-columns: 1fr; }
  .footer-inner{ flex-direction:column; gap: 36px; }
  .footer-bottom{ flex-direction:column; }
  .footer-disclaimer{ text-align:left; }

  /* hero: tighter so everything fits and the scroll cue stays centered at the bottom */
  .hero{ padding: 104px 20px 68px; }
  .badge-pill{ margin-bottom: 20px; }
  .hero-title{ margin-bottom: 16px; }
  .hero-sub{ margin-bottom: 22px; }
  .hero-actions{ margin-bottom: 22px; }
  .hero-badges{ gap: 9px 18px; }
  .scroll-cue{ bottom: 18px; }
  .scroll-cue span{ height: 24px; }
}
/* hide the scroll hint only when the viewport is genuinely too short */
@media (max-height: 720px){
  .scroll-cue{ display: none; }
}
@media (max-width: 420px){
  .hero-actions{ flex-direction:column; width:100%; }
  .hero-actions .btn{ width:100%; }
  .cta-actions{ flex-direction:column; width:100%; }
  .cta-actions .btn{ width:100%; }
}