/* ============================================================
   RANGBLAZE MEDIA: 02 · BASE
   Reset, typography, layout primitives, utilities.
   ============================================================ */

*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 20px)}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;
    transition-duration:.01ms!important;scroll-behavior:auto!important}
}
body{
  font-family:var(--f-body);font-size:var(--fs-body);line-height:1.7;
  color:var(--body);background:var(--white);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg,video,picture{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;background:none;color:inherit;cursor:pointer}
ul,ol{list-style:none;padding:0}
input,select,textarea,button{font-family:inherit}
:focus-visible{outline:2.5px solid var(--blaze);outline-offset:3px;border-radius:4px}
::selection{background:var(--blaze);color:#fff}

/* ---------- TYPE ---------- */
h1,h2,h3,h4,h5{font-family:var(--f-dis);font-weight:800;line-height:1.08;
  letter-spacing:-.032em;color:var(--ink);text-wrap:balance}
h1{font-size:var(--fs-h1)}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3);font-weight:700;letter-spacing:-.02em}
h4{font-size:var(--fs-h4);font-weight:700}
p{text-wrap:pretty}
strong{font-weight:700;color:var(--ink)}
.num{font-family:var(--f-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- LAYOUT ---------- */
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gut)}
.wrap-narrow{max-width:var(--max-narrow)}
.section{padding-block:var(--sec);position:relative}
.section-sm{padding-block:calc(var(--sec) * .6)}

/* section colour contexts */
.on-dark{background:var(--ink);color:var(--text-d)}
.on-dark h1,.on-dark h2,.on-dark h3,.on-dark h4{color:#fff}
.on-paper{background:var(--paper)}
.on-tint{background:var(--accent-tint,var(--paper))}
.on-deep{background:var(--ink-deep);color:var(--text-d)}

/* grids */
.grid{display:grid;gap:clamp(1rem,1.8vw,1.4rem)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.6rem,4vw,4rem);align-items:center}
.split-wide{grid-template-columns:1.15fr .85fr}
@media(max-width:980px){.g-3,.g-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:860px){.split,.split-wide{grid-template-columns:1fr;gap:2.2rem}}
@media(max-width:640px){.g-2,.g-3,.g-4{grid-template-columns:1fr}}

/* ---------- SECTION HEADINGS ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:.6rem;margin-bottom:1rem;
  font-family:var(--f-num);font-size:var(--fs-2xs);font-weight:500;letter-spacing:.19em;
  text-transform:uppercase;color:var(--accent,var(--blaze))}
.eyebrow::before{content:"";width:20px;height:1.5px;background:currentColor;border-radius:2px}
.on-dark .eyebrow{color:var(--blaze-hi)}
.lead{font-size:var(--fs-lead);line-height:1.62;max-width:62ch;color:var(--body)}
.on-dark .lead{color:var(--text-d)}
.head{max-width:48ch;margin-bottom:clamp(2.2rem,4.5vw,3.2rem)}
.head .lead{margin-top:.9rem}
.head-mid{max-width:54ch;margin-inline:auto;text-align:center}
.head-mid .eyebrow{justify-content:center}
.head-mid .lead{margin-inline:auto}

/* ---------- PROSE (article body) ---------- */
.prose{max-width:74ch;font-size:1.06rem;line-height:1.75}
.prose > * + *{margin-top:1.15rem}
.prose h2{margin-top:2.6rem;font-size:clamp(1.5rem,2.6vw,2rem)}
.prose h3{margin-top:2rem}
.prose ul,.prose ol{display:flex;flex-direction:column;gap:.6rem;margin-block:1.3rem}
.prose ul li{position:relative;padding-left:1.6rem}
.prose ul li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;
  border-radius:2px;background:var(--accent,var(--blaze));transform:rotate(45deg)}
.prose ol{counter-reset:n}
.prose ol li{position:relative;padding-left:2.2rem;counter-increment:n}
.prose ol li::before{content:counter(n);position:absolute;left:0;top:.05em;width:1.55rem;height:1.55rem;
  border-radius:7px;background:var(--paper-2);color:var(--accent,var(--blaze));
  font-family:var(--f-num);font-weight:600;font-size:.78rem;display:grid;place-items:center}
.prose a:not(.btn):not(.tlink){color:var(--blaze);text-decoration:underline;
  text-underline-offset:3px;text-decoration-thickness:1px}
.prose blockquote{border-left:3px solid var(--accent,var(--blaze));padding:.4rem 0 .4rem 1.5rem;
  margin-block:1.8rem;font-size:1.14rem;color:var(--ink);font-weight:400}
.prose table{width:100%;border-collapse:collapse;margin-block:1.6rem;font-size:.94rem}
.prose th,.prose td{border:1px solid var(--line);padding:.75rem .9rem;text-align:left}
.prose th{background:var(--paper);font-family:var(--f-dis);font-size:.85rem;font-weight:700}

/* ---------- UTILITIES ---------- */
.center{text-align:center}
.mx-auto{margin-inline:auto}
.measure{max-width:62ch}
.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.75rem}.mt-4{margin-top:2.6rem}
.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.75rem}.mb-4{margin-bottom:2.6rem}
.hr{height:1px;background:var(--line);border:0;margin-block:clamp(2.5rem,5vw,4rem)}
.on-dark .hr{background:var(--rule-d)}
.hidden{display:none}
[hidden]{display:none!important}

/* reveal-on-scroll (JS adds .in) */
[data-r]{opacity:0;transform:translateY(20px);
  transition:opacity var(--t-slow) var(--ease-o),transform var(--t-slow) var(--ease-o)}
[data-r].in{opacity:1;transform:none}
[data-r][data-d="1"]{transition-delay:.08s}
[data-r][data-d="2"]{transition-delay:.16s}
[data-r][data-d="3"]{transition-delay:.24s}
[data-r][data-d="4"]{transition-delay:.32s}
[data-r][data-d="5"]{transition-delay:.40s}

/* reading progress bar */
.progress{position:fixed;inset:0 auto auto 0;height:3px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--blaze),var(--blaze-hi));transition:width .1s linear}

.skip{position:absolute;left:-9999px;top:0;background:var(--blaze);color:#fff;
  padding:.8rem 1.2rem;z-index:300;border-radius:0 0 8px 0}
.skip:focus{left:0}