/* Theme variables are registered so the dark -> light switch (case studies) can animate. */
@property --black{syntax:'<color>';inherits:true;initial-value:#000000}
@property --white{syntax:'<color>';inherits:true;initial-value:#FFFFFF}
@property --smoke{syntax:'<color>';inherits:true;initial-value:#E1E1E1}
@property --charcoal{syntax:'<color>';inherits:true;initial-value:#3E3E3E}
@property --cyan{syntax:'<color>';inherits:true;initial-value:#00FFFF}
@property --magenta{syntax:'<color>';inherits:true;initial-value:#FF00FF}
:root{
  --black:var(--color-primary);--white:var(--color-text);--charcoal:var(--color-surface-raised);--smoke:var(--color-text-muted);
  --magenta:var(--color-accent-alt);--cyan:var(--color-accent);--cobalt:var(--color-brand-cobalt);--indigo:var(--color-brand-indigo);--purple:var(--color-brand-purple);
  --bac:'OCX Bacalar','Arial Black',sans-serif;
  --rob:'OCX Roboto',Helvetica,Arial,sans-serif;
  --gx:1.875rem;            /* frame side gutter (30px @1440) */
  color-scheme:dark;
}
/* Fluid root: 16px at 1440×810, scales with the smaller of width/height */
html{font-size:clamp(14px,min(1.111vw,1.975vh),22px)}
@media (max-width:900px){html{font-size:16px}}
html{transition:--black .6s var(--ease),--white .6s var(--ease),--smoke .6s var(--ease),--charcoal .6s var(--ease),--cyan .6s var(--ease),--magenta .6s var(--ease)}
/* Light mode: the same roles, flipped. Accents become indigo/purple (cyan and magenta fail contrast on white). */
html.light{--black:var(--color-surface-light);--white:var(--color-text-on-light);--smoke:var(--color-surface-raised);--charcoal:var(--color-surface-light-gray);--cyan:var(--color-brand-indigo);--magenta:var(--color-brand-purple);color-scheme:light}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--black);color:var(--smoke);font-family:var(--rob);font-weight:500;line-height:1.45;
  -webkit-font-smoothing:antialiased;overflow:hidden;height:100vh}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
.bac{font-family:var(--bac);font-weight:400;text-transform:uppercase;line-height:1}
.eyebrow{font-family:var(--rob);font-weight:700;text-transform:uppercase;letter-spacing:.3em;font-size:.75rem;color:var(--cyan);line-height:1.4}
.mag{color:var(--magenta)}
.src{font-size:.75rem;color:var(--smoke);margin-top:1rem}
::selection{background:var(--magenta);color:var(--black)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* ---------------- BRAND FRAME ---------------- */
.frame-txt{font-family:var(--rob);font-weight:700;letter-spacing:.2em;text-transform:uppercase;text-transform:uppercase;font-size:0.75rem;color:var(--white);line-height:1.4}
.frame-bot{position:fixed;left:var(--gx);bottom:1.5rem;z-index:500;display:flex;gap:1rem;align-items:center}
.pageno{position:fixed;right:var(--gx);bottom:1.6rem;z-index:500;font-weight:700;font-size:.75rem;color:var(--white);letter-spacing:.05em}

/* ---------------- VIEWS ---------------- */
.view{position:fixed;inset:0;overflow-x:hidden;overflow-y:auto;visibility:hidden;opacity:0;background:var(--black);
  scrollbar-width:thin;scrollbar-color:var(--charcoal) transparent;transform-origin:50% 30%}
.view.is-active{visibility:visible;opacity:1;z-index:10}
.view::-webkit-scrollbar{width:6px}.view::-webkit-scrollbar-thumb{background:var(--charcoal);border-radius:3px}

/* ---------------- TRANSITION WIPE ---------------- */
.wipe{position:fixed;left:-10vw;width:120vw;top:-20vh;height:140vh;background:var(--cyan);z-index:900;transform:translateY(130vh);
  border-radius:50% 50% 0 0/22vh 22vh 0 0;pointer-events:none;will-change:transform}
.wipe-title{position:fixed;inset:0;z-index:901;display:flex;align-items:center;justify-content:center;pointer-events:none;opacity:0;
  font-family:var(--bac);text-transform:uppercase;color:#000;font-size:3.5rem;text-align:center;padding:0 2rem;line-height:1}
.wipe-sub{position:fixed;left:0;right:0;bottom:2rem;z-index:901;text-align:center;font-family:var(--rob);font-weight:700;letter-spacing:.2em;text-transform:uppercase;font-size:0.75rem;color:#000;opacity:0;pointer-events:none;}

/* ---------------- COVER ---------------- */
.cover{overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:var(--black)}
.cover-photo{position:absolute;inset:0}
.cover-photo video{width:100%;height:100%;object-fit:cover;display:block}
.cover-scrim{position:absolute;inset:0;background:var(--black);opacity:.6}
.cover-content{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;padding:0 var(--gx)}
.cover.no-photo .cover-photo,.cover.no-photo .cover-scrim{display:none}
.cover .hero-title{font-size:3rem}
.cover .btn.ghost{box-shadow:inset 0 0 0 1px var(--smoke);color:var(--white)}
.cover .btn.ghost:hover{background:var(--white);color:var(--black)}
body[data-view="cover"] .frame-txt,body[data-view="cover"] .frame-bot .copy{display:none}
.hero-title{font-family:var(--bac);text-transform:uppercase;font-size:4.5rem;line-height:.95;color:var(--white)}
.hero-title span{display:block}
.hero-title .l2{color:var(--magenta)}
.cover .subtitle{font-size:1.5rem;color:var(--white);margin-top:1.25rem}
.btn{display:inline-flex;align-items:center;gap:.75rem;font-family:var(--rob);font-weight:700;letter-spacing:.2em;text-transform:uppercase;text-transform:uppercase;font-size:0.75rem;
  color:var(--white);background:var(--charcoal);padding:1rem 1.5rem;border-radius:0;transition:background .25s,color .25s}
.btn:hover{background:var(--magenta);color:#000}
.btn.ghost{background:transparent;box-shadow:inset 0 0 0 2px var(--charcoal)}
.btn.ghost:hover{background:var(--white);color:#000;box-shadow:none}
.btn .arr{font-family:var(--rob);font-weight:500;font-size:1rem;line-height:0}
.cover .btn{margin-top:4.5rem}
.reveal{opacity:0;transform:translateY(1.5rem)}
.is-active .reveal{animation:rise .9s var(--ease-out) forwards}
.is-active .reveal.d1{animation-delay:.15s}.is-active .reveal.d2{animation-delay:.3s}.is-active .reveal.d3{animation-delay:.45s}
@keyframes rise{to{opacity:1;transform:none}}

/* ---------------- EXECUTIVE SUMMARY ---------------- */
.summary{padding:6.5rem var(--gx) 6rem;display:flex;flex-direction:column;align-items:center}
.summary h1{font-size:2.25rem;color:var(--white);text-align:center}
.summary .lead{color:var(--smoke);margin:.75rem 0 2.5rem;font-size:1.1rem}
.es-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;width:min(72rem,100%)}
.es-card{background:var(--charcoal);border-radius:1.5rem;padding:1.5rem 1.5rem 1.75rem;text-align:left;position:relative;overflow:hidden;
  transition:background .3s,transform .4s var(--ease-out);min-height:9.5rem;display:flex;flex-direction:column}
.es-card:hover{background:var(--indigo);transform:translateY(-.25rem)}
.es-card .n{font-family:var(--rob);font-weight:700;letter-spacing:.2em;text-transform:uppercase;font-size:0.75rem;color:var(--cyan)}
.es-card h3{font-weight:500;font-size:1.35rem;color:var(--white);line-height:1.15;margin:1rem 0 .5rem}
.es-card p{font-size:.9rem;color:var(--smoke)}
.es-card .go{position:absolute;right:1.25rem;top:1.1rem;font-size:1.1rem;color:var(--white);opacity:0;transform:translateX(-.5rem);transition:.3s}
.es-card:hover .go{opacity:1;transform:none}
/* video modal */
.vmodal{position:fixed;inset:0;z-index:950;background:var(--black);display:none;align-items:center;justify-content:center;padding:4rem}
.vmodal.open{display:flex}
.vmodal .video-box{margin:0 auto;aspect-ratio:auto;height:calc(100dvh - 8rem);width:min(100%,calc((100dvh - 8rem) * 16 / 9))}
.vmodal .close{position:absolute;right:var(--gx);top:1.25rem;font-family:var(--rob);font-weight:700;letter-spacing:.2em;text-transform:uppercase;font-size:0.75rem;color:var(--white);padding:.75rem 1rem;background:var(--charcoal);border-radius:0}

.fx-veil{position:fixed;inset:0;z-index:880;pointer-events:none;display:none;opacity:0}
html.theme-instant{transition:none}

/* ---------- cover: code view + switch ---------- */
.cover-code{position:absolute;inset:0;z-index:2;cursor:crosshair;touch-action:none;display:none}
.cover.code-live .cover-code{display:block}
.code-bg{position:absolute;inset:0;background:#000000}
.cover-code canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.cover.code-on .cover-content{opacity:0;pointer-events:none;transition:opacity .4s}
.cover:not(.code-on) .cover-content{transition:opacity 1s var(--ease-out) 1.2s}
/* no logo / menu / page number while the code is on screen */
body[data-view="cover"].cover-code-on .frame-top,body[data-view="cover"].cover-code-on .pageno{opacity:0;pointer-events:none}
.frame-top,.pageno{transition:opacity .6s var(--ease) .5s}
body[data-view="cover"].cover-code-on .frame-top,body[data-view="cover"].cover-code-on .pageno{transition-delay:0s}
.cover-activate{position:absolute;z-index:3;left:50%;top:50%;transform:translate(-50%,-50%);display:inline-flex;align-items:center;justify-content:center;gap:1rem;min-width:17rem;height:3.5rem;padding:0 2rem;background:#000000;color:#FFFFFF;border:1px solid #FFFFFF;font-weight:700;font-size:.8rem;letter-spacing:.3em;text-transform:uppercase;cursor:pointer;transition:background .2s,color .2s,border-color .2s,opacity .3s}
.cover-activate span{font-size:1.1rem;letter-spacing:0}
.cover-activate:hover,.cover-activate:focus-visible{background:#FF00FF;border-color:#FF00FF;color:#000000}
.cover:not(.code-on) .cover-activate{opacity:0;pointer-events:none}
.cover-back{position:absolute;z-index:3;left:var(--gx);bottom:1.5rem;display:inline-flex;align-items:center;gap:.6rem;padding:.55rem .8rem;color:#E1E1E1;border:1px solid #3E3E3E;background:#000000;font-weight:700;font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .6s var(--ease-out),color .2s,border-color .2s}
.cover:not(.code-on) .cover-back{opacity:.75;pointer-events:auto;transition-delay:2.2s,0s,0s}
.cover-back:hover,.cover-back:focus-visible{opacity:1;color:#FFFFFF;border-color:#FFFFFF}