/* ========== DESIGN TOKENS ========== */
:root{
  --bg-0:#05030d;
  --bg-1:#0a0818;
  --bg-2:#120c26;
  --ink-0:#ffffff;
  --ink-1:#d8d4ff;
  --ink-2:#8f8ab5;
  --ink-mute:#5a5677;
  --c-cyan:#00f0ff;
  --c-violet:#7b61ff;
  --c-magenta:#ff3d8b;
  --c-amber:#ffb547;
  --c-lime:#7fff9e;
  --grad-primary:linear-gradient(135deg,#00f0ff 0%,#7b61ff 50%,#ff3d8b 100%);
  --grad-dark:linear-gradient(180deg,#05030d 0%,#0a0818 50%,#120c26 100%);
  --grad-glow:radial-gradient(circle at 50% 50%,rgba(123,97,255,0.4) 0%,rgba(123,97,255,0) 60%);
  --glass-bg:rgba(20,14,40,0.45);
  --glass-border:rgba(255,255,255,0.12);
  --shadow-glow:0 0 40px rgba(0,240,255,0.25), 0 0 80px rgba(123,97,255,0.2);
  --radius-sm:10px;
  --radius-md:18px;
  --radius-lg:28px;
  --ff-display:'Orbitron',sans-serif;
  --ff-body:'Inter',system-ui,sans-serif;
  --ease-out:cubic-bezier(0.22,1,0.36,1);
}

/* ========== RESET ========== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--ff-body);
  font-size:17px;
  line-height:1.7;
  color:var(--ink-1);
  background:var(--bg-0);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--c-cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-magenta)}
a:focus-visible,button:focus-visible{outline:2px solid var(--c-cyan);outline-offset:3px;border-radius:4px}
img,svg{max-width:100%;display:block}
h1,h2,h3{font-family:var(--ff-display);color:var(--ink-0);letter-spacing:-0.01em;line-height:1.2;margin:0 0 .6em}
h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:900}
h2{font-size:clamp(1.5rem,3.5vw,2.25rem);font-weight:700;margin-top:1.5em}
h3{font-size:1.25rem;font-weight:600}
p{margin:0 0 1em}
ul,ol{padding-left:1.4em}
li{margin:.3em 0}

.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--c-cyan);color:#000;
  padding:8px 12px;z-index:1000;font-weight:700;
}
.skip-link:focus{left:8px;top:8px}

/* ========== HERO ========== */
.hero{
  position:relative;
  height:100vh;
  min-height:640px;
  overflow:hidden;
  background:var(--grad-dark);
  display:flex;align-items:center;justify-content:center;
  isolation:isolate;
}
.hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(0,240,255,0.08) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,240,255,0.08) 1px,transparent 1px);
  background-size:60px 60px;
  transform:perspective(600px) rotateX(60deg) translateY(20%);
  transform-origin:bottom;
  mask-image:linear-gradient(to top,rgba(0,0,0,.9) 0%,transparent 80%);
  animation:gridFlow 20s linear infinite;
  z-index:1;
}
@keyframes gridFlow{
  0%{background-position:0 0}
  100%{background-position:0 60px}
}
.hero-layer{position:absolute;inset:0;pointer-events:none}
.hero-particles{position:absolute;inset:0;z-index:2}
.particle{
  position:absolute;width:3px;height:3px;border-radius:50%;
  background:var(--c-cyan);box-shadow:0 0 8px var(--c-cyan);
  opacity:.7;animation:floatUp linear infinite;
}
@keyframes floatUp{
  0%{transform:translateY(100vh) translateX(0);opacity:0}
  10%{opacity:.8}
  90%{opacity:.8}
  100%{transform:translateY(-10vh) translateX(40px);opacity:0}
}

.logo-stage{
  position:relative;
  width:min(420px,70vw);
  aspect-ratio:1;
  display:flex;align-items:center;justify-content:center;
  transform-style:preserve-3d;
  transition:transform .4s var(--ease-out);
}
.ring{
  position:absolute;border-radius:50%;
  border:2px solid transparent;
  border-image:var(--grad-primary) 1;
  filter:drop-shadow(0 0 20px rgba(0,240,255,.5));
}
.ring-outer{
  inset:0;
  border:2px solid rgba(0,240,255,.4);
  animation:spin 18s linear infinite;
}
.ring-outer::before,.ring-outer::after{
  content:'';position:absolute;width:14px;height:14px;border-radius:50%;
  background:var(--c-cyan);box-shadow:0 0 20px var(--c-cyan);
}
.ring-outer::before{top:-7px;left:50%;transform:translateX(-50%)}
.ring-outer::after{bottom:-7px;left:50%;transform:translateX(-50%);background:var(--c-magenta);box-shadow:0 0 20px var(--c-magenta)}
.ring-inner{
  inset:12%;
  border:2px dashed rgba(255,61,139,.5);
  animation:spinRev 14s linear infinite;
}
.ring-scan{
  inset:24%;
  border:2px solid rgba(123,97,255,.3);
  border-top-color:var(--c-violet);
  animation:spin 6s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes spinRev{to{transform:rotate(-360deg)}}

.orb{
  position:absolute;border-radius:50%;
  filter:blur(30px);opacity:.6;
}
.orb-1{width:140px;height:140px;background:var(--c-cyan);top:-30px;right:-40px;animation:drift 9s ease-in-out infinite}
.orb-2{width:180px;height:180px;background:var(--c-magenta);bottom:-40px;left:-30px;animation:drift 11s ease-in-out infinite reverse}
.orb-3{width:120px;height:120px;background:var(--c-violet);top:40%;left:-50px;animation:drift 8s ease-in-out infinite}
@keyframes drift{
  0%,100%{transform:translate(0,0) scale(1)}
  50%{transform:translate(20px,-20px) scale(1.1)}
}

.shield{
  width:45%;
  animation:breathe 4s ease-in-out infinite;
  filter:drop-shadow(0 0 20px rgba(0,240,255,.6)) drop-shadow(0 0 40px rgba(123,97,255,.4));
}
@keyframes breathe{
  0%,100%{transform:scale(1);filter:drop-shadow(0 0 20px rgba(0,240,255,.6))}
  50%{transform:scale(1.04);filter:drop-shadow(0 0 35px rgba(255,61,139,.7))}
}

.pulse-ring{
  position:absolute;inset:10%;border-radius:50%;
  border:2px solid var(--c-cyan);opacity:0;
  animation:pulseOut 3s ease-out infinite;
}
.pulse-ring + .pulse-ring{animation-delay:1.5s}
@keyframes pulseOut{
  0%{transform:scale(.6);opacity:1}
  100%{transform:scale(1.3);opacity:0}
}

.hero-text{
  position:absolute;bottom:10%;left:50%;transform:translateX(-50%);
  text-align:center;width:90%;z-index:3;
}
.hero-title{
  font-family:var(--ff-display);font-weight:900;
  font-size:clamp(1.6rem,4.5vw,3rem);
  display:flex;flex-direction:column;gap:.1em;
  background:var(--grad-primary);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  text-shadow:0 0 60px rgba(0,240,255,.2);
  margin-bottom:.4em;
}
.hero-sub{
  color:var(--ink-2);font-size:clamp(.9rem,1.5vw,1.1rem);
  letter-spacing:.15em;text-transform:uppercase;margin:0;
}

.scroll-indicator{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  width:28px;height:44px;border:2px solid var(--c-cyan);border-radius:14px;
  display:flex;align-items:flex-start;justify-content:center;padding-top:6px;
  z-index:3;
}
.scroll-indicator span{
  width:4px;height:8px;background:var(--c-cyan);border-radius:2px;
  animation:scrollDot 2s ease-in-out infinite;
}
@keyframes scrollDot{
  0%,100%{transform:translateY(0);opacity:1}
  50%{transform:translateY(14px);opacity:.3}
}

/* ========== TOC ========== */
.toc-wrap{
  position:sticky;top:16px;z-index:50;
  margin:24px auto;max-width:1100px;padding:0 20px;
  display:flex;justify-content:flex-start;
}
.toc-toggle{
  display:none;
  background:var(--glass-bg);backdrop-filter:blur(14px);
  border:1px solid var(--glass-border);border-radius:999px;
  padding:10px 18px;color:var(--ink-0);cursor:pointer;
  font-family:var(--ff-display);font-weight:600;font-size:.9rem;
  gap:8px;align-items:center;
}
.toc-list{
  list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0;
  background:var(--glass-bg);backdrop-filter:blur(14px);
  border:1px solid var(--glass-border);border-radius:999px;
  padding:8px 12px;
}
.toc-list li{margin:0}
.toc-list a{
  display:block;padding:6px 14px;font-size:.82rem;
  border-radius:999px;color:var(--ink-2);
  transition:all .25s var(--ease-out);
  white-space:nowrap;
}
.toc-list a:hover{color:var(--ink-0);background:rgba(0,240,255,.1)}
.toc-list a.active{
  background:var(--grad-primary);color:#0a0818;font-weight:600;
  box-shadow:0 0 20px rgba(0,240,255,.4);
}

/* ========== ARTICLE ========== */
main{position:relative;z-index:2}
.container{max-width:820px;margin:0 auto;padding:40px 24px 80px}
.article-header{text-align:center;margin-bottom:56px;padding-top:20px}
.badge{
  display:inline-block;padding:6px 16px;border-radius:999px;
  background:rgba(0,240,255,.12);color:var(--c-cyan);
  border:1px solid rgba(0,240,255,.3);
  font-size:.75rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;
  margin-bottom:18px;
}
.article-title{
  font-size:clamp(1.8rem,4.5vw,3rem);
  background:var(--grad-primary);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  margin-bottom:16px;
}
.article-meta{color:var(--ink-mute);font-size:.9rem}

.content-section{
  padding:40px 32px;margin-bottom:32px;
  background:var(--glass-bg);backdrop-filter:blur(12px);
  border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  position:relative;overflow:hidden;
  box-shadow:0 10px 40px rgba(0,0,0,.3);
}
.content-section::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--grad-primary);
}
.content-section a{
  color:var(--c-cyan);border-bottom:1px dashed rgba(0,240,255,.4);
}
.content-section a:hover{color:var(--c-magenta);border-bottom-color:var(--c-magenta)}

.glass{
  background:rgba(20,14,40,.45);
  backdrop-filter:blur(12px);
  border:1px solid var(--glass-border);
}
.callout{
  padding:22px 26px;border-radius:var(--radius-md);
  border-left:4px solid var(--c-magenta);margin:28px 0;
  position:relative;overflow:hidden;
}
.callout::after{
  content:'';position:absolute;top:0;right:0;width:200px;height:200px;
  background:radial-gradient(circle,rgba(255,61,139,.15),transparent 70%);
  pointer-events:none;
}
.callout strong{color:var(--c-magenta)}

.cards-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:18px;margin-top:24px;
}
.card{
  padding:24px;border-radius:var(--radius-md);
  transition:transform .3s var(--ease-out),box-shadow .3s;
  position:relative;overflow:hidden;
}
.card::before{
  content:'';position:absolute;inset:0;border-radius:var(--radius-md);
  background:var(--grad-primary);opacity:0;transition:opacity .3s;
  z-index:-1;filter:blur(20px);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-glow)}
.card:hover::before{opacity:.3}
.card-icon{
  width:52px;height:52px;display:flex;align-items:center;justify-content:center;
  background:rgba(0,240,255,.12);border-radius:14px;
  font-size:1.6rem;margin-bottom:14px;
  box-shadow:inset 0 0 20px rgba(0,240,255,.15);
}
.card h3{margin:.2em 0;font-size:1.1rem}
.card p{margin:0;font-size:.92rem;color:var(--ink-2)}

/* ========== PROCESS VISUAL ========== */
.process-section{padding:48px 32px}
.process-visual{margin-top:36px;padding:40px 20px;position:relative}
.process-track{
  display:flex;justify-content:space-between;align-items:flex-start;
  gap:10px;flex-wrap:wrap;position:relative;
}
.process-stage{
  flex:1;min-width:140px;text-align:center;
  padding:20px 10px;opacity:.4;transform:translateY(20px);
  transition:all .8s var(--ease-out);
}
.process-stage.visible{opacity:1;transform:translateY(0)}
.stage-icon{
  width:68px;height:68px;margin:0 auto 14px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:linear-gradient(135deg,rgba(0,240,255,.2),rgba(123,97,255,.2));
  border:2px solid rgba(0,240,255,.4);
  color:var(--c-cyan);
  position:relative;
  transition:all .4s var(--ease-out);
}
.process-stage.visible .stage-icon{
  box-shadow:0 0 30px rgba(0,240,255,.5),inset 0 0 20px rgba(0,240,255,.15);
  transform:scale(1.05);
}
.stage-icon svg{width:32px;height:32px}
.process-stage h3{font-size:.95rem;margin:8px 0 4px}
.process-stage p{font-size:.82rem;color:var(--ink-2);margin:0;line-height:1.4}
.process-connector{
  flex:0 0 auto;width:30px;height:2px;
  background:linear-gradient(90deg,rgba(0,240,255,.6),rgba(255,61,139,.6));
  align-self:center;margin-top:-10px;
  opacity:.3;
  box-shadow:0 0 10px rgba(0,240,255,.5);
}

/* ========== CTA ========== */
.cta-section{
  padding:60px 20px;text-align:center;
  background:
    radial-gradient(circle at 30% 50%,rgba(0,240,255,.15),transparent 50%),
    radial-gradient(circle at 70% 50%,rgba(255,61,139,.15),transparent 50%);
}
.cta-card{
  max-width:760px;margin:0 auto;
  padding:48px 36px;border-radius:var(--radius-lg);
  position:relative;overflow:hidden;
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-glow);
}
.cta-card::before{
  content:'';position:absolute;inset:-2px;
  background:var(--grad-primary);z-index:-1;
  border-radius:var(--radius-lg);opacity:.3;filter:blur(20px);
}
.cta-badge{
  display:inline-block;padding:6px 16px;border-radius:999px;
  background:rgba(255,61,139,.15);color:var(--c-magenta);
  border:1px solid rgba(255,61,139,.3);
  font-size:.75rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase;
  margin-bottom:14px;
}
.cta-title{
  font-size:clamp(1.6rem,3.5vw,2.4rem);
  background:var(--grad-primary);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.cta-sub{color:var(--ink-2);margin-bottom:28px}
.cta-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:14px;margin:28px 0;
}
.cta-item{
  display:block;padding:16px;border-radius:var(--radius-sm);
  background:rgba(10,8,24,.6);border:1px solid var(--glass-border);
  text-decoration:none;color:var(--ink-1);
  transition:all .25s var(--ease-out);
}
.cta-item:hover{
  transform:translateY(-3px);
  border-color:var(--c-cyan);
  box-shadow:0 0 20px rgba(0,240,255,.3);
  color:var(--ink-0);
}
.cta-label{display:block;font-size:.7rem;text-transform:uppercase;letter-spacing:.15em;color:var(--c-cyan);margin-bottom:4px}
.cta-value{font-weight:500;font-size:.95rem;word-break:break-word}

.cta-button{
  display:inline-block;margin-top:12px;
  padding:16px 38px;border-radius:999px;
  background:var(--grad-primary);color:#0a0818;
  font-family:var(--ff-display);font-weight:700;
  text-transform:uppercase;letter-spacing:.08em;font-size:.95rem;
  box-shadow:0 0 30px rgba(0,240,255,.4),0 0 60px rgba(123,97,255,.3);
  transition:transform .25s var(--ease-out);
}
.cta-button:hover{transform:translateY(-3px) scale(1.02);color:#0a0818}

/* ========== SOCIAL ========== */
.social-section{padding:40px 20px;text-align:center}
.social-inner{max-width:600px;margin:0 auto}
.social-title{font-family:var(--ff-display);color:var(--ink-2);font-size:.85rem;letter-spacing:.2em;text-transform:uppercase;margin-bottom:18px}
.social-row{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.social-link{
  width:52px;height:52px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass-bg);backdrop-filter:blur(10px);
  border:1px solid var(--glass-border);
  color:var(--ink-1);
  transition:all .3s var(--ease-out);
}
.social-link:hover{
  color:var(--c-cyan);
  border-color:var(--c-cyan);
  box-shadow:0 0 25px rgba(0,240,255,.5);
  transform:translateY(-4px) rotate(-5deg);
}

/* ========== FOOTER ========== */
.site-footer{
  padding:30px 20px;text-align:center;
  border-top:1px solid var(--glass-border);
  color:var(--ink-mute);font-size:.85rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width:780px){
  .toc-list{display:none;flex-direction:column;width:100%;border-radius:var(--radius-md);padding:12px}
  .toc-list.open{display:flex}
  .toc-list a{padding:10px 16px;border-radius:var(--radius-sm)}
  .toc-toggle{display:inline-flex}
  .toc-wrap{justify-content:flex-start}
  .hero{min-height:560px}
  .logo-stage{width:70vw}
  .process-track{flex-direction:column;align-items:stretch;gap:20px}
  .process-connector{width:2px;height:24px;margin:0 auto;background:linear-gradient(180deg,rgba(0,240,255,.6),rgba(255,61,139,.6))}
  .content-section{padding:28px 20px}
  .cards-grid{grid-template-columns:1fr}
  .cta-card{padding:36px 20px}
}
@media (max-width:420px){
  body{font-size:16px}
  .content-section{padding:22px 16px}
  .hero-title{font-size:1.5rem}
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .hero-grid{animation:none}
}