:root{
  --bg:#070717;
  --bg-2:#0A0E27;
  --ink:#ECEBFF;
  --ink-dim:#B8A5FF;
  --ink-soft:#8784B8;
  --line:rgba(184,165,255,0.14);
  --glass:rgba(20,18,50,0.55);
  --glass-strong:rgba(30,26,70,0.72);
  --cyan:#00F0FF;
  --magenta:#FF2E93;
  --gold:#FFB800;
  --lav:#B8A5FF;
  --grad-primary:linear-gradient(135deg,#00F0FF 0%,#B8A5FF 45%,#FF2E93 100%);
  --grad-warm:linear-gradient(135deg,#FFB800 0%,#FF2E93 100%);
  --grad-cool:linear-gradient(135deg,#00F0FF 0%,#B8A5FF 100%);
  --shadow-neon:0 10px 40px rgba(0,240,255,0.15),0 10px 60px rgba(255,46,147,0.12);
  --radius:18px;
  --radius-lg:28px;
  --max:1200px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.65;
  overflow-x:hidden;
  min-height:100vh;
  font-size:16px;
}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--magenta)}
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-weight:700;line-height:1.2;letter-spacing:-0.02em;color:var(--ink)}
h1{font-size:clamp(2.2rem,5.2vw,4.4rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem);margin:0 0 .8em}
h3{font-size:1.2rem;margin:0 0 .5em}
p{color:var(--ink-dim);margin:0 0 1em}
ul,ol{padding-left:1.3em;color:var(--ink-dim)}
ul li,ol li{margin:.4em 0}

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

/* ============ ANIMATED BACKGROUND ============ */
.bg-grid{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(1200px 600px at 80% -10%,rgba(255,46,147,0.18),transparent 60%),
    radial-gradient(900px 500px at 10% 100%,rgba(0,240,255,0.18),transparent 60%),
    linear-gradient(180deg,#070717 0%,#0A0E27 100%);
}
.bg-grid::before{
  content:"";position:absolute;inset:0;opacity:.35;
  background-image:
    linear-gradient(rgba(184,165,255,0.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(184,165,255,0.06) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 80%);
}
.bg-orbs{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.4;animation:float 18s ease-in-out infinite}
.orb-1{width:420px;height:420px;background:var(--cyan);top:-120px;left:-120px}
.orb-2{width:520px;height:520px;background:var(--magenta);bottom:-200px;right:-140px;animation-delay:-6s}
.orb-3{width:360px;height:360px;background:var(--gold);top:40%;left:40%;opacity:.18;animation-delay:-12s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(40px,-30px) scale(1.08)}}

/* ============ NAV ============ */
.nav-wrap{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  background:rgba(7,7,23,0.65);
  border-bottom:1px solid var(--line);
}
.nav{
  max-width:var(--max);margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;color:var(--ink)}
.brand-text{letter-spacing:-0.02em}
.brand-dot{color:var(--magenta)}
.nav-links{display:flex;list-style:none;gap:28px;align-items:center}
.nav-links a{color:var(--ink-dim);font-weight:500;font-size:.95rem}
.nav-links a:hover{color:var(--ink)}
.nav-cta{
  padding:8px 18px;border-radius:999px;
  background:var(--grad-primary);color:#0a0a1a !important;font-weight:700;
  box-shadow:0 6px 20px rgba(0,240,255,0.25);
}
.nav-toggle{display:none;background:transparent;border:none;cursor:pointer;width:40px;height:40px;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.nav-toggle span{width:24px;height:2px;background:var(--ink);transition:transform .3s ease,opacity .3s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ HERO ============ */
.hero{
  min-height:100vh;padding:100px 24px 80px;
  display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;
  max-width:var(--max);margin:0 auto;position:relative;
}
.hero-content{z-index:2}
.hero-kicker{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:rgba(0,240,255,0.1);border:1px solid rgba(0,240,255,0.3);
  color:var(--cyan);font-size:.82rem;font-weight:600;letter-spacing:0.04em;text-transform:uppercase;
  margin-bottom:22px;
}
.hero-title{margin:0 0 22px}
.grad-text{
  background:var(--grad-primary);-webkit-background-clip:text;background-clip:text;color:transparent;
  display:inline-block;
}
.hero-sub{font-size:1.15rem;color:var(--ink-dim);max-width:560px;margin:0 0 32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
  cursor:pointer;border:none;transition:transform .2s ease,box-shadow .2s ease;
  text-decoration:none;
}
.btn-primary{
  background:var(--grad-primary);color:#0a0a1a;
  box-shadow:0 10px 30px rgba(0,240,255,0.3),0 0 40px rgba(255,46,147,0.2);
}
.btn-primary:hover{transform:translateY(-2px);color:#0a0a1a}
.btn-ghost{
  background:rgba(255,255,255,0.04);color:var(--ink);
  border:1px solid var(--line);backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(255,255,255,0.08);border-color:var(--cyan);color:var(--ink)}

.hero-scroll{
  position:absolute;bottom:30px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--ink-soft);
  font-size:.75rem;letter-spacing:.3em;text-transform:uppercase;
}
.scroll-line{width:1px;height:40px;background:linear-gradient(180deg,var(--cyan),transparent);animation:scrollPulse 2s ease-in-out infinite}
@keyframes scrollPulse{0%,100%{opacity:.3}50%{opacity:1}}

/* ============ HERO SCENE ============ */
.scene{
  position:relative;aspect-ratio:1/1;max-width:560px;width:100%;
  perspective:1400px;transform-style:preserve-3d;
}
.scene-inner{
  position:absolute;inset:0;transform-style:preserve-3d;
  display:flex;align-items:center;justify-content:center;
  transition:transform .3s ease-out;
}
.blueprint-floor{
  position:absolute;left:50%;top:62%;width:120%;height:80%;
  transform:translate(-50%,-50%) rotateX(72deg) translateZ(-100px);
  background:
    linear-gradient(rgba(0,240,255,0.12) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,240,255,0.12) 1px,transparent 1px);
  background-size:30px 30px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 70%);
  animation:gridMove 20s linear infinite;
}
@keyframes gridMove{to{background-position:30px 30px,30px 30px}}
.ring{
  position:absolute;left:50%;top:50%;border-radius:50%;
  border:1.5px solid transparent;transform-style:preserve-3d;
}
.ring-a{width:80%;height:80%;margin:-40% 0 0 -40%;border-color:rgba(0,240,255,0.45);animation:spin 24s linear infinite}
.ring-b{width:60%;height:60%;margin:-30% 0 0 -30%;border-color:rgba(255,46,147,0.35);animation:spin 18s linear infinite reverse;transform:rotateX(60deg)}
.ring-c{width:40%;height:40%;margin:-20% 0 0 -20%;border-color:rgba(255,184,0,0.4);animation:spin 14s linear infinite;transform:rotateY(60deg)}
.ring::before{
  content:"";position:absolute;width:10px;height:10px;border-radius:50%;
  background:var(--cyan);top:-5px;left:50%;margin-left:-5px;
  box-shadow:0 0 20px var(--cyan),0 0 40px var(--cyan);
}
.ring-b::before{background:var(--magenta);box-shadow:0 0 20px var(--magenta),0 0 40px var(--magenta)}
.ring-c::before{background:var(--gold);box-shadow:0 0 20px var(--gold),0 0 40px var(--gold)}
@keyframes spin{to{transform:rotateZ(360deg)}}
.ring-b{animation:spinB 18s linear infinite reverse}
.ring-c{animation:spinC 14s linear infinite}
@keyframes spinB{to{transform:rotateX(60deg) rotateZ(360deg)}}
@keyframes spinC{to{transform:rotateY(60deg) rotateZ(360deg)}}

.kitchen-core{
  position:relative;width:55%;aspect-ratio:1.5/1;
  transform:translateZ(40px);transform-style:preserve-3d;
  animation:bob 6s ease-in-out infinite;
}
@keyframes bob{0%,100%{transform:translateZ(40px) translateY(0)}50%{transform:translateZ(40px) translateY(-10px)}}
.kitchen-island{
  position:absolute;bottom:10%;left:15%;right:15%;height:40%;
  background:linear-gradient(180deg,rgba(184,165,255,0.3),rgba(184,165,255,0.08));
  border:1.5px solid rgba(184,165,255,0.5);border-radius:8px;
  box-shadow:inset 0 0 30px rgba(0,240,255,0.2),0 20px 40px rgba(0,0,0,0.4);
}
.kitchen-island::before{
  content:"";position:absolute;top:-20%;left:10%;right:10%;height:20%;
  background:linear-gradient(180deg,rgba(255,184,0,0.4),rgba(255,184,0,0.1));
  border:1.5px solid rgba(255,184,0,0.5);border-radius:8px 8px 0 0;
}
.kitchen-cabinet{
  position:absolute;bottom:55%;width:25%;height:55%;
  background:linear-gradient(180deg,rgba(0,240,255,0.15),rgba(0,240,255,0.05));
  border:1.5px solid rgba(0,240,255,0.4);border-radius:6px;
  box-shadow:inset 0 0 20px rgba(0,240,255,0.15);
}
.cab-l{left:0}
.cab-r{right:0}
.kitchen-hood{
  position:absolute;top:0;left:30%;right:30%;height:25%;
  background:linear-gradient(180deg,rgba(255,46,147,0.2),transparent);
  border:1.5px solid rgba(255,46,147,0.4);border-radius:6px 6px 0 0;
  clip-path:polygon(0 0,100% 0,85% 100%,15% 100%);
}
.kitchen-glow{
  position:absolute;inset:-20%;
  background:radial-gradient(circle,rgba(255,184,0,0.25),transparent 60%);
  filter:blur(30px);z-index:-1;
  animation:pulseGlow 3s ease-in-out infinite;
}
@keyframes pulseGlow{0%,100%{opacity:.6}50%{opacity:1}}

.utensil{position:absolute;width:40px;height:80px;animation:floatUt 8s ease-in-out infinite}
.ut-1{top:10%;left:15%;animation-delay:-2s}
.ut-2{top:18%;right:18%;animation-delay:-4s}
.ut-3{bottom:18%;left:12%;animation-delay:-6s}
.ut-4{bottom:15%;right:12%;animation-delay:-8s}
@keyframes floatUt{0%,100%{transform:translateY(0) rotate(-5deg)}50%{transform:translateY(-20px) rotate(5deg)}}

.particles{position:absolute;inset:0;pointer-events:none}
.particle{
  position:absolute;width:4px;height:4px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px var(--cyan);
  animation:drift 12s linear infinite;
}

@keyframes drift{
  0%{transform:translate(0,0) scale(1);opacity:0}
  10%{opacity:1}
  90%{opacity:1}
  100%{transform:translate(var(--dx,100px),var(--dy,-200px)) scale(0);opacity:0}
}

/* ============ TOC ============ */
.toc{
  position:fixed;right:24px;top:110px;width:260px;z-index:40;
  background:var(--glass-strong);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;
  box-shadow:0 20px 60px rgba(0,0,0,0.4);
}
.toc-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.toc-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.2em;color:var(--ink-soft);font-weight:700}
.toc-toggle{background:transparent;border:1px solid var(--line);color:var(--ink);width:28px;height:28px;border-radius:50%;cursor:pointer;font-weight:700}
.toc-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:4px}
.toc-list a{
  display:block;padding:6px 10px;font-size:.86rem;color:var(--ink-dim);
  border-left:2px solid transparent;transition:all .2s ease;
}
.toc-list a:hover{color:var(--ink);background:rgba(255,255,255,0.03)}
.toc-list a.active{color:var(--cyan);border-left-color:var(--cyan);background:rgba(0,240,255,0.08)}
.toc.collapsed .toc-list{display:none}
.toc.collapsed .toc-toggle::after{content:"+"}

/* ============ ARTICLE ============ */
.article-wrap{
  max-width:780px;margin:80px auto;padding:0 24px;position:relative;z-index:2;
}
.article > p.lead{font-size:1.25rem;color:var(--ink);font-weight:400;margin-bottom:32px}
.article h2{margin-top:56px;padding-top:20px;scroll-margin-top:100px}
.article h2::before{
  content:"";display:block;width:60px;height:3px;margin-bottom:16px;
  background:var(--grad-primary);border-radius:3px;
}
.article h3{margin-top:28px;color:var(--ink)}
.article ul,.article ol{margin:12px 0 24px}

.takeaway,.tip{
  margin:28px 0;padding:24px 28px;border-radius:var(--radius);
  background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);position:relative;overflow:hidden;
}
.takeaway::before{
  content:"";position:absolute;top:0;left:0;width:4px;height:100%;
  background:var(--grad-primary);
}
.tip::before{
  content:"";position:absolute;top:0;left:0;width:4px;height:100%;
  background:var(--grad-warm);
}
.takeaway h3,.tip h3{margin:0 0 10px;font-size:1rem;color:var(--cyan)}
.tip h3{color:var(--gold)}
.takeaway ul,.tip ul{margin:8px 0 0}
.takeaway p,.tip p{margin:0}

.conclusion{
  margin-top:56px;padding:32px;border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(0,240,255,0.08),rgba(255,46,147,0.08));
  border:1px solid var(--line);
}
.conclusion h2{margin-top:0}

.faqs{margin-top:56px}
details{
  padding:18px 22px;border-radius:var(--radius);
  background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--line);margin-bottom:12px;transition:border-color .2s ease;
}
details[open]{border-color:var(--cyan)}
summary{
  cursor:pointer;font-weight:600;color:var(--ink);list-style:none;
  display:flex;justify-content:space-between;align-items:center;
}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.5rem;color:var(--cyan);transition:transform .2s ease}
details[open] summary::after{transform:rotate(45deg)}
details p{margin:12px 0 0;color:var(--ink-dim)}

.article a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(0,240,255,0.3)}
.article a:hover{text-decoration-color:var(--magenta);color:var(--magenta)}

/* ============ PROCESS ============ */
.process{padding:100px 24px;position:relative;z-index:2}
.section-head{text-align:center;max-width:640px;margin:0 auto 60px}
.section-head h2{margin:12px 0 14px}
.section-head p{color:var(--ink-dim);margin:0}
.kicker{
  display:inline-block;padding:5px 12px;border-radius:999px;
  background:rgba(255,46,147,0.1);border:1px solid rgba(255,46,147,0.3);
  color:var(--magenta);font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
}
.process-track{
  display:grid;grid-template-columns:repeat(5,1fr);gap:20px;
  max-width:var(--max);margin:0 auto;
}
.process-stage{
  background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;
  text-align:center;position:relative;transition:transform .3s ease,border-color .3s ease;
  opacity:0;transform:translateY(30px);
}
.process-stage.in{opacity:1;transform:translateY(0)}
.process-stage:hover{transform:translateY(-6px);border-color:var(--cyan)}
.stage-num{
  font-size:2rem;font-weight:800;
  background:var(--grad-primary);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:8px;
}
.stage-art{margin:10px auto 16px;width:100%;max-width:160px;aspect-ratio:200/160}
.stage-art svg{width:100%;height:100%}
.process-stage h3{margin:8px 0;font-size:1.05rem}
.process-stage p{font-size:.88rem;margin:0}

/* ============ CTA ============ */
.cta{padding:80px 24px;position:relative;z-index:2}
.cta-card{
  max-width:1080px;margin:0 auto;border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(0,240,255,0.12),rgba(255,46,147,0.12));
  border:1px solid var(--line);
  box-shadow:var(--shadow-neon);
  overflow:hidden;position:relative;
}
.cta-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:2px;
  background:var(--grad-primary);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;
  opacity:.6;pointer-events:none;
}
.cta-inner{
  padding:56px 48px;display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center;
  position:relative;z-index:1;
}
.cta-kicker{
  display:inline-block;padding:5px 12px;border-radius:999px;
  background:rgba(0,240,255,0.1);color:var(--cyan);font-size:.72rem;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px;
}
.cta-copy h2{margin:8px 0 14px}
.cta-info{margin:28px 0;display:grid;gap:10px}
.info-row{display:flex;gap:14px;align-items:baseline;padding:8px 0;border-bottom:1px dashed var(--line)}
.info-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-soft);font-weight:700;min-width:90px}
.info-row a,.info-row span{color:var(--ink);font-weight:500}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.cta-visual{position:relative;aspect-ratio:1/1;max-width:320px;margin:0 auto;width:100%}
.cta-orb{
  position:absolute;inset:20%;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,var(--cyan),var(--magenta) 80%);
  filter:blur(1px);box-shadow:0 0 80px rgba(0,240,255,0.5),inset 0 0 60px rgba(255,46,147,0.4);
  animation:pulseOrb 4s ease-in-out infinite;
}
@keyframes pulseOrb{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
.cta-ring{
  position:absolute;inset:0;border-radius:50%;border:2px dashed rgba(255,184,0,0.5);
  animation:spin 20s linear infinite;
}

/* ============ FOOTER ============ */
.footer{padding:60px 24px 40px;border-top:1px solid var(--line);margin-top:80px;position:relative;z-index:2}
.footer-inner{max-width:var(--max);margin:0 auto;display:grid;gap:24px;align-items:center;justify-items:center;text-align:center}
.footer-brand .brand-text{font-size:1.5rem;font-weight:800}
.footer-brand p{margin:8px 0 0;color:var(--ink-soft);font-size:.9rem}
.footer-social{display:flex;gap:14px}
.footer-social a{
  display:flex;align-items:center;justify-content:center;width:44px;height:44px;
  border-radius:50%;background:var(--glass);border:1px solid var(--line);color:var(--ink-dim);
  transition:transform .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.footer-social a:hover{
  color:var(--cyan);border-color:var(--cyan);transform:translateY(-3px);
  box-shadow:0 8px 24px rgba(0,240,255,0.3);
}
.footer-legal p{font-size:.82rem;color:var(--ink-soft);margin:0}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ============ RESPONSIVE ============ */
@media (max-width:1100px){
  .toc{display:none}
  .hero{grid-template-columns:1fr;padding-top:60px;min-height:auto}
  .scene{max-width:460px;margin:0 auto}
}
@media (max-width:768px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(7,7,23,0.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line);padding:10px 24px 20px;
    transform:translateY(-10px);opacity:0;pointer-events:none;transition:all .25s ease;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links li{width:100%;padding:8px 0}
  .nav-cta{display:inline-block;margin-top:8px}
  .hero{padding:40px 20px 60px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn{justify-content:center}
  .process-track{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;padding:36px 24px}
  .cta-visual{max-width:200px}
  .article-wrap{padding:0 20px}
  .takeaway,.tip,.conclusion,details{padding:20px}
}
@media (max-width:480px){
  .process-track{grid-template-columns:1fr}
  h1{font-size:2rem}
}

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

/* ============ MOBILE TOC (drawer) ============ */
@media (max-width:1100px){
  .toc{
    position:fixed;left:0;right:0;top:auto;bottom:0;width:100%;
    border-radius:var(--radius) var(--radius) 0 0;
    max-height:50vh;overflow-y:auto;
    transform:translateY(calc(100% - 52px));transition:transform .3s ease;
  }
  .toc.open{transform:translateY(0)}
}