:root{--bg-canvas:#160f2e;--bg-surface:#281c43;--bg-surface-hover:#382453;--text-primary:#fff;--text-muted:#d7cde4;--accent-primary:#e0409b;--accent-secondary:#c4a85a;--border-subtle:rgba(255,255,255,.17);--ease-kinetic:cubic-bezier(.16,1,.3,1);--shadow-elevation:0 12px 32px -4px rgba(0,0,0,.25);--glow-accent:0 0 24px -4px rgba(224,64,155,.35);--glass-backdrop:blur(16px) saturate(180%)}
*{box-sizing:border-box}html{scroll-behavior:smooth;color-scheme:dark}body{margin:0;background:var(--bg-canvas);color:var(--text-primary);font:17px/1.75 system-ui,"Segoe UI",sans-serif;overflow-wrap:anywhere;hyphens:auto}a{color:#f4a3d2;text-underline-offset:4px}a:hover{color:#fff}button,input,textarea,select{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer}h1,h2,h3{font-family:system-ui,"Segoe UI",sans-serif;font-weight:800;line-height:1.12;letter-spacing:-.045em;text-wrap:balance}h1{font-size:clamp(2.6rem,6vw,5rem);margin:.3em 0}h2{font-size:clamp(1.8rem,3.4vw,2.6rem);margin:0 0 1rem}h3{font-size:1.35rem}p,li{color:var(--text-muted)}strong{color:#fff}img{display:block;max-width:100%;object-fit:cover;border-radius:20px}figure{margin:2rem 0}figcaption{font-size:.85rem;color:var(--text-muted);margin-top:.7rem}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;border:0;border-radius:99px;padding:.8rem 1.3rem;background:var(--accent-primary);color:#160f2e;font-weight:800;text-decoration:none;transition:transform .35s var(--ease-kinetic),box-shadow .35s var(--ease-kinetic),background .35s}.button:hover,button:hover{color:#160f2e;background:#f378bf;transform:translateY(-5px) scale(1.015);box-shadow:var(--shadow-elevation),var(--glow-accent)}.secondary{background:#c4a85a;color:#160f2e}.secondary:hover{background:#dfc67d}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent-secondary);outline-offset:5px}.skip{position:absolute;top:-100px;left:1rem;z-index:20;background:var(--bg-surface);padding:.5rem 1rem}.skip:focus{top:1rem}.site-header{position:relative;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:1.4rem;padding:1.3rem clamp(1rem,3vw,3rem);background:transparent;transition:background .3s}.site-header.scrolled{background:var(--bg-surface)}.brand{display:flex;align-items:center;gap:.6rem;color:white;text-decoration:none;font-size:1rem;font-weight:800;letter-spacing:-.04em;flex-shrink:0}.brand-mark{display:grid;place-items:center;width:32px;height:32px;background:var(--accent-primary);color:var(--bg-canvas);border-radius:10px;font-size:1.2rem}.site-nav{display:flex;flex-wrap:wrap;align-items:center;gap:1.15rem}.site-nav a{font-size:.86rem;text-decoration:none;color:var(--text-muted);font-weight:650}.site-nav a:hover,.site-nav a[aria-current=page]{color:#fff}.menu-toggle{display:none;padding:0;width:42px;height:42px;font-size:1.8rem}.wrap{width:min(1200px,calc(100% - 3rem));margin:auto}.reading{max-width:70ch;margin:0 auto}.hero{position:relative;padding:4rem 0 5rem;isolation:isolate}.dots{background-image:radial-gradient(rgba(196,168,90,.2) 1px,transparent 1px);background-size:22px 22px}.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse at 80% 35%,rgba(224,64,155,.19),transparent 60%),radial-gradient(ellipse at 10% 60%,rgba(196,168,90,.1),transparent 55%);background-size:200% 200%;animation:gradientShift 12s ease infinite;pointer-events:none}.hero-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:2rem}.eyebrow{font-size:.76rem;text-transform:uppercase;letter-spacing:.18em;font-weight:800;color:var(--accent-secondary);margin:0 0 .8rem}.intro{font-size:1.2rem;max-width:50ch}.scene-stack{position:relative;min-height:410px}.scene-stack img{position:absolute;width:66%;aspect-ratio:4/3;background:#281c43;border:1px solid var(--border-subtle);box-shadow:var(--shadow-elevation)}.scene-stack .domestic-route-scene{left:0;top:0;transform:rotate(-8deg)}.scene-stack .international-handover-scene{right:0;top:90px;transform:rotate(6deg)}.scene-stack .tracked-parcel-scene{left:9%;top:190px;transform:rotate(-3deg)}.section{padding:4.5rem 0;scroll-margin-top:1rem}.section+.section{border-top:1px solid var(--border-subtle)}.section-label{color:var(--accent-secondary);font-size:.8rem;font-weight:800;letter-spacing:.12em}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:1.25rem}.card,.panel{padding:1.8rem;border:1px solid var(--border-subtle);border-radius:20px;background:linear-gradient(135deg,rgba(74,37,85,.7),rgba(40,28,67,.85));backdrop-filter:var(--glass-backdrop)}.card{transition:transform .4s var(--ease-kinetic),box-shadow .4s var(--ease-kinetic),background .4s}.card:hover{transform:translateY(-5px) scale(1.015);box-shadow:var(--shadow-elevation),var(--glow-accent);background-color:var(--bg-surface-hover)}.card h3{margin-top:.5rem}.card a{font-weight:750}.wide{max-width:1050px;margin:2.5rem auto}.split-card{display:grid;grid-template-columns:.8fr 1.2fr;gap:2rem;align-items:center}.split-card img{width:100%;aspect-ratio:4/3;background:var(--bg-surface)}.note{border-left:3px solid var(--accent-secondary);padding:1rem 1.4rem;background:rgba(196,168,90,.08);border-radius:0 20px 20px 0;margin:2rem 0}.pullquote{font-weight:800;font-size:clamp(1.5rem,3vw,2.2rem);letter-spacing:-.035em;line-height:1.3;color:white;margin:3rem auto;padding:1.5rem 0;border-top:1px solid var(--accent-primary);border-bottom:1px solid var(--accent-primary);max-width:32ch}.table-wrap{overflow-x:auto;border:1px solid var(--border-subtle);border-radius:20px;margin:2rem 0}table{border-collapse:collapse;width:100%;font-size:.92rem;min-width:560px}th,td{text-align:left;padding:1rem;border-bottom:1px solid var(--border-subtle);vertical-align:top}th{color:var(--accent-secondary);background:var(--bg-surface)}td{color:var(--text-muted)}tr:last-child td{border:0}.checklist{list-style:none;padding:0}.checklist li{position:relative;padding:.65rem 0 .65rem 2rem;border-bottom:1px solid var(--border-subtle)}.checklist li:before{content:"✓";color:var(--accent-secondary);position:absolute;left:0;font-weight:800}.article-hero{padding:4rem 0 2rem}.article-hero h1{font-size:clamp(2.4rem,5vw,4rem)}.article-body{padding-bottom:4rem}.article-body h2{margin-top:2.6rem;font-size:2rem}.article-body h3{margin-top:2rem}.article-body .wide{width:min(1050px,calc(100vw - 3rem));position:relative;left:50%;transform:translateX(-50%)}.diagram{width:100%;aspect-ratio:16/9;background:var(--bg-surface)}details{border:1px solid var(--border-subtle);border-radius:20px;margin:1rem 0;background:rgba(40,28,67,.75);padding:1.2rem 1.4rem}summary{cursor:pointer;font-weight:800;line-height:1.45;color:#fff}details p{margin-bottom:.2rem}.state{display:inline-block;margin-right:.6rem;color:var(--accent-secondary);font-size:.8rem;letter-spacing:.08em}.branches{counter-reset:branch}.branches .card:before{counter-increment:branch;content:"0" counter(branch);font-size:.8rem;color:var(--accent-secondary);font-weight:800}.tool{display:grid;gap:1rem}.tool label{display:grid;gap:.4rem;font-weight:700}.tool input,.tool textarea,.tool select{width:100%;min-width:0;padding:.8rem 1rem;background:#160f2e;border:1px solid var(--border-subtle);border-radius:12px;color:white}.tool textarea{resize:vertical;min-height:140px}.tool .message-output{min-height:260px}.actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1rem}.status{min-height:1.8em;color:var(--accent-secondary);font-size:.92rem}.small{font-size:.9rem}.site-footer{border-top:1px solid var(--border-subtle);padding:2.5rem clamp(1.5rem,4vw,4rem);display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;font-size:.85rem}.site-footer p{margin:0}.footer-links{display:flex;gap:1rem;flex-wrap:wrap;align-items:start}.site-footer a{color:var(--text-muted)}.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease-kinetic),transform .7s var(--ease-kinetic)}.js .reveal.reveal-visible{opacity:1;transform:translateY(0)}@keyframes gradientShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@media(min-width:1025px){.hero-grid h1{max-width:10ch}.section .reading+.grid{margin-top:2rem}}
@media(min-width:769px) and (max-width:1024px){.site-header{align-items:flex-start}.site-nav{justify-content:flex-end;gap:.7rem}.hero{padding-top:2rem}.scene-stack{min-height:370px}.scene-stack .tracked-parcel-scene{top:170px}}
@media(max-width:768px){.site-header{padding:1rem;flex-wrap:wrap}.js .menu-toggle{display:inline-flex}.site-nav{width:100%;gap:.8rem 1.4rem}.js .site-nav{display:none;position:absolute;left:1rem;right:1rem;top:calc(100% - .2rem);width:auto;padding:1.5rem;background:rgba(40,28,67,.98);border:1px solid var(--border-subtle);border-radius:20px;box-shadow:var(--shadow-elevation)}.js .site-nav.is-open{display:grid;grid-template-columns:1fr 1fr;animation:menuIn .25s var(--ease-kinetic)}.site-nav a{padding:.35rem}.hero-grid{grid-template-columns:1fr}.hero{padding:2rem 0 3rem}.scene-stack{max-width:500px;width:100%;margin:1rem auto 0;min-height:420px}.section{padding:3rem 0}.split-card{grid-template-columns:1fr}.article-hero{padding-top:2rem}.site-footer{flex-direction:column}.article-body h2{font-size:1.8rem}}
@media(max-width:480px){body{font-size:16px}.wrap{width:calc(100% - 2rem)}.brand{font-size:.9rem}.brand-mark{width:28px;height:28px}.scene-stack{min-height:330px}.scene-stack .international-handover-scene{top:65px}.scene-stack .tracked-parcel-scene{top:140px}.card,.panel{padding:1.3rem}.article-body .wide{width:calc(100vw - 2rem)}.actions>*{width:100%}}
@keyframes menuIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.js .reveal{opacity:1;transform:none}.card:hover,button:hover,.button:hover{transform:none}}