:root{--bg-canvas:#13261d;--bg-surface:#20392c;--bg-surface-hover:#284636;--bg-deep:#0e1d16;--text-primary:#efe6d2;--text-muted:#c6bda8;--accent-primary:#b8923a;--accent-secondary:#d6b46b;--border-subtle:rgba(239,230,210,.12);--ease-kinetic:cubic-bezier(.16,1,.3,1);--shadow-soft:0 10px 28px -10px rgba(0,0,0,.45);--shadow-elevation:0 12px 32px -4px rgba(0,0,0,.35);--glow-accent:0 0 24px -4px var(--accent-primary);--glass-backdrop:blur(16px) saturate(180%)}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg-canvas);color:var(--text-primary);font-family:system-ui,"Segoe UI",sans-serif;font-size:1.05rem;line-height:1.75;overflow-wrap:anywhere;hyphens:auto}
h1,h2,h3,h4{font-family:system-ui,"Segoe UI",sans-serif;font-weight:800;letter-spacing:-.03em;line-height:1.12;margin:0 0 .8rem;overflow-wrap:anywhere;hyphens:auto}
h1{font-size:clamp(2.1rem,5vw,3.6rem)}
h2{font-size:clamp(1.6rem,3.2vw,2.4rem)}
h3{font-size:1.25rem;letter-spacing:-.02em}
p{margin:0 0 1rem}
a{color:var(--accent-secondary);text-underline-offset:3px}
a:hover{color:var(--text-primary)}
img{display:block;max-width:100%;height:auto;border-radius:0}
:focus-visible{outline:3px solid var(--accent-secondary);outline-offset:3px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent-primary);color:var(--bg-canvas);padding:.6rem 1rem;z-index:50}
.skip:focus{left:1rem}
.wrap{max-width:1200px;margin:0 auto;padding:0 1.25rem}
.prose{max-width:70ch;margin:0 auto}
.muted{color:var(--text-muted)}
/* Header */
.site-header{position:relative;background:var(--bg-deep);box-shadow:0 1px 0 var(--border-subtle)}
.header-top{display:flex;justify-content:space-between;align-items:center;padding-top:1rem;padding-bottom:.9rem}
.brand{display:inline-flex;align-items:center;gap:.65rem;color:var(--text-primary);text-decoration:none;font-weight:800;letter-spacing:-.03em;font-size:1.25rem;margin-right:auto}
.brand-mark{width:30px;height:30px;background:linear-gradient(135deg,var(--accent-primary) 0 50%,transparent 50%),var(--bg-surface);box-shadow:inset 0 0 0 2px var(--accent-primary)}
.menu-btn{display:none;background:var(--bg-surface);color:var(--text-primary);border:0;border-radius:999px;width:44px;height:44px;font-size:1.5rem;line-height:1;cursor:pointer}
.main-nav{border-top:1px solid var(--border-subtle)}
.main-nav ul{list-style:none;display:flex;justify-content:center;flex-wrap:wrap;gap:.2rem 1.4rem;margin:0 auto;padding-top:.65rem;padding-bottom:.65rem}
.main-nav a{color:var(--text-muted);text-decoration:none;font-weight:600;font-size:.95rem;padding:.25rem 0;border-bottom:2px solid transparent;transition:color .3s,border-color .3s}
.main-nav a:hover,.main-nav a[aria-current="page"]{color:var(--text-primary);border-color:var(--accent-primary)}
/* Hero & grid background */
.grid-bg{position:relative;background-color:var(--bg-canvas);background-image:linear-gradient(rgba(239,230,210,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(239,230,210,.045) 1px,transparent 1px);background-size:42px 42px}
.hero{padding:4.5rem 0 4rem;overflow:hidden}
.hero::after{content:"";position:absolute;width:420px;height:420px;right:-120px;top:-140px;border-radius:50%;background:radial-gradient(circle,rgba(184,146,58,.22),transparent 70%);animation:drift 14s ease-in-out infinite;pointer-events:none}
@keyframes drift{50%{transform:translate(-40px,40px)}}
.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:3rem;align-items:center;position:relative;z-index:1}
.lead{font-size:1.18rem;color:var(--text-muted);max-width:56ch}
.page-hero{padding:3.5rem 0 2.5rem}
.page-hero .lead{max-width:68ch}
.eyebrow,.badge{display:inline-block;background:rgba(184,146,58,.16);color:var(--accent-secondary);border-radius:999px;padding:.2rem .8rem;font-size:.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:1rem}
/* Buttons */
.btn{display:inline-block;background:var(--accent-primary);color:var(--bg-canvas);border:0;border-radius:999px;padding:.85rem 1.6rem;font-weight:800;font-size:1rem;text-decoration:none;cursor:pointer;font-family:inherit;transition:transform .45s var(--ease-kinetic),box-shadow .45s var(--ease-kinetic),background .3s}
.btn:hover{color:var(--bg-canvas);background:var(--accent-secondary);transform:translateY(-5px) scale(1.015);box-shadow:var(--shadow-elevation),var(--glow-accent)}
.btn.alt{background:var(--bg-surface);color:var(--text-primary)}
.btn.alt:hover{background:var(--bg-surface-hover);color:var(--text-primary)}
.btn-row{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.5rem}
/* Split sections */
.split-section{padding:4.5rem 0}
.split-section:nth-of-type(even){background:rgba(0,0,0,.12)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:3.5rem;align-items:center}
.split.reverse .split-media{order:-1}
.media-16x9 img{aspect-ratio:16/9;object-fit:cover;width:100%}
.media-4x3 img{aspect-ratio:4/3;object-fit:cover;width:100%}
.media-1x1 img{aspect-ratio:1/1;object-fit:cover;width:100%}
.split-media{box-shadow:var(--shadow-soft)}
figure{margin:0}
figcaption{font-size:.85rem;color:var(--text-muted);padding:.6rem 0 0}
.step{font-weight:800;color:var(--accent-primary);font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;display:block;margin-bottom:.4rem}
/* Cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin:2rem 0}
.card{background:var(--bg-surface);padding:1.6rem;box-shadow:var(--shadow-soft);transition:transform .5s var(--ease-kinetic),box-shadow .5s var(--ease-kinetic),background .3s;color:var(--text-primary);text-decoration:none;display:block}
.card:hover{transform:translateY(-5px) scale(1.015);box-shadow:var(--shadow-elevation),var(--glow-accent);background:var(--bg-surface-hover);color:var(--text-primary)}
.card p{color:var(--text-muted);margin:0}
.card h3{margin-bottom:.5rem}
/* Diagrams, lists, tables */
.signal{list-style:none;padding:0;margin:1.5rem 0;display:flex;flex-wrap:wrap;gap:.6rem;align-items:stretch}
.signal li{background:var(--bg-surface);padding:.7rem 1rem;box-shadow:var(--shadow-soft);font-weight:600;font-size:.95rem;position:relative;flex:1 1 140px}
.signal li small{display:block;color:var(--text-muted);font-weight:400;font-size:.8rem}
.signal li:not(:last-child)::after{content:"→";position:absolute;right:-.55rem;top:50%;transform:translateY(-50%);color:var(--accent-primary);font-weight:800;z-index:1}
.cue-list{list-style:none;counter-reset:cue;padding:0;margin:1.5rem 0}
.cue-list li{counter-increment:cue;position:relative;background:var(--bg-surface);padding:.85rem 1rem .85rem 4.2rem;margin-bottom:.55rem;box-shadow:var(--shadow-soft)}
.cue-list li::before{content:"Q" counter(cue);position:absolute;left:1rem;top:.85rem;color:var(--accent-primary);font-weight:800}
.table-wrap{overflow-x:auto;margin:1.5rem 0;box-shadow:var(--shadow-soft)}
.matrix{width:100%;min-width:600px;border-collapse:collapse;background:var(--bg-surface);font-size:.95rem}
.matrix th,.matrix td{padding:.7rem .9rem;text-align:left;border-bottom:1px solid var(--border-subtle);vertical-align:top}
.matrix thead th{background:var(--bg-deep);color:var(--accent-secondary)}
.matrix caption{caption-side:top;text-align:left;padding:.6rem 0;color:var(--text-muted);font-size:.9rem}
.note{background:rgba(184,146,58,.12);border-left:4px solid var(--accent-primary);padding:1rem 1.25rem;margin:1.5rem 0}
.note strong{color:var(--accent-secondary)}
/* FAQ */
details{background:var(--bg-surface);margin-bottom:.7rem;box-shadow:var(--shadow-soft)}
summary{cursor:pointer;padding:1rem 1.25rem;font-weight:700;list-style-position:outside}
summary:hover{color:var(--accent-secondary)}
details p{padding:0 1.25rem 1.1rem;margin:0;color:var(--text-muted)}
/* Forms */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}
label{display:block;font-weight:600;margin-bottom:.3rem}
input,select,textarea{width:100%;background:var(--bg-deep);color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:0;padding:.7rem .8rem;font:inherit}
textarea{min-height:150px;resize:vertical}
.field{margin-bottom:1rem}
.status{min-height:1.5rem;color:var(--accent-secondary);font-weight:600}
.avatar{border-radius:50%;width:72px;height:72px;object-fit:cover}
/* Footer */
.site-footer{background:var(--bg-deep);padding:3.5rem 0 1.5rem;margin-top:4rem;font-size:.95rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.4fr;gap:2rem}
.site-footer h2{font-size:1rem;letter-spacing:.02em;color:var(--accent-secondary)}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:.35rem}
.site-footer address{font-style:normal;color:var(--text-muted)}
.foot-bottom{border-top:1px solid var(--border-subtle);margin-top:2rem;padding-top:1.2rem;color:var(--text-muted);font-size:.88rem}
/* Reveal */
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease-kinetic),transform .7s var(--ease-kinetic)}
.js .reveal.reveal-visible{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.js .reveal{opacity:1;transform:none}}
/* Breakpoints */
@media (min-width:1025px){.split{gap:4rem}}
@media (max-width:1024px) and (min-width:769px){.hero-grid,.split{gap:2rem}.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:768px){
.menu-btn{display:block}
.main-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--bg-deep);z-index:40;box-shadow:var(--shadow-elevation)}
.main-nav.open{display:block;animation:slideDown .4s var(--ease-kinetic)}
.main-nav ul{flex-direction:column;align-items:flex-start;padding:1rem 1.25rem 1.4rem}
.main-nav a{font-size:1.05rem}
.hero-grid,.split{grid-template-columns:1fr}
.split.reverse .split-media{order:0}
.footer-grid{grid-template-columns:1fr}
.hero{padding:3rem 0}
.split-section{padding:3rem 0}
}
@keyframes slideDown{from{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:none}}
@media (max-width:480px){body{font-size:1rem}.btn{width:100%;text-align:center}.cue-list li{padding-left:3.4rem}.signal li:not(:last-child)::after{display:none}}