/* Shared by index.html and kesho.html: tokens, type, nav, buttons, footer, the signature line. */
:root{
  --canvas:#0E1822;
  --panel:#16263A;
  --surface:#16263A;
  --accent:#D6ECF4;        /* the light of the line */
  --accent-text:#D6ECF4;   /* accent when it has to be read */
  --accent-fill:#D6ECF4;
  --accent-fill-hover:#EEF8FB;
  --on-fill:#0E1822;
  --text-primary:#E8EEF1;
  --text-secondary:#93A3AE;
  --border:rgba(232,238,241,.34);
  --hair:rgba(232,238,241,.12);
  --nav-solid:rgba(14,24,34,.78);
  --thread-glow:drop-shadow(0 0 6px rgba(214,236,244,.55));
  --ease-out:cubic-bezier(.23,1,.32,1);
  --ease-in-out:cubic-bezier(.77,0,.175,1);
  --f-display:"Funnel Display",system-ui,sans-serif;
  --f-body:"Funnel Sans",system-ui,sans-serif;
  --f-mono:"Fragment Mono",ui-monospace,monospace;
  --gutter:max(20px,5vw);
  --indent:clamp(28px,5vw,80px);
}
/* Kesho's light palette: the subpage, and the project card that anticipates it. */
.theme-kesho{
  --canvas:#E9EEF1;
  --panel:#F6F8F9;
  --surface:#FFFFFF;
  --accent:#3E8FB0;
  --accent-text:#256F8E;
  --accent-fill:#256F8E;
  --accent-fill-hover:#1E5F7A;
  --on-fill:#FFFFFF;
  --text-primary:#0F1820;
  --text-secondary:#4E5D68;
  --border:rgba(15,24,32,.34);
  --hair:rgba(15,24,32,.14);
  --nav-solid:rgba(233,238,241,.86);
  --thread-glow:none;
}

*,*::before,*::after{box-sizing:border-box}
html{overflow-x:clip;background:var(--canvas);-webkit-text-size-adjust:100%}
html.smooth{scroll-behavior:smooth}
body{margin:0;overflow-x:clip;background:var(--canvas);color:var(--text-primary);font:400 17px/1.6 var(--f-body);-webkit-font-smoothing:antialiased}
img,svg,video{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:var(--f-display);font-weight:600;letter-spacing:-.02em;line-height:1.08;margin:0;text-wrap:balance;overflow-wrap:break-word}
p{margin:0}
::selection{background:var(--accent-fill);color:var(--on-fill)}
.skip{position:fixed;left:16px;top:-60px;z-index:100;background:var(--accent-fill);color:var(--on-fill);padding:10px 16px;border-radius:10px;font-weight:500;text-decoration:none}
.skip:focus{top:16px}
:focus-visible{outline:2px solid var(--accent-text);outline-offset:3px;border-radius:6px}
main:focus{outline:none}
.mono{display:block;font-family:var(--f-mono);font-size:12.5px;line-height:1.5;letter-spacing:.1em;text-transform:uppercase;color:var(--text-secondary)}
.link{color:var(--accent-text);text-underline-offset:3px}

/* Nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:40;display:flex;align-items:center;gap:24px;padding:16px var(--gutter);transition:background-color 200ms ease}
.nav.solid{background:var(--nav-solid);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--hair)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;min-width:0}
.mark{flex:none;width:34px;height:34px}
.mark path{fill:none;stroke:currentColor;stroke-width:7;stroke-linecap:round;stroke-linejoin:round}
.mark circle{fill:var(--accent)}
.brand b{display:block;font:600 17px/1 var(--f-display);letter-spacing:-.01em;white-space:nowrap}
.brand small{display:block;font:400 11px/1 var(--f-mono);letter-spacing:.3em;color:var(--text-secondary);margin-top:5px}
.nav ul{display:flex;gap:28px;list-style:none;margin:0 0 0 auto;padding:0}
.nav ul a{text-decoration:none;font-size:15px;transition:color 160ms ease;color:var(--text-primary)}
.nav .btn{flex:none}
.nav .short{display:none}
@media (hover:hover) and (pointer:fine){.nav ul a:hover{color:var(--accent-text)}}
@media (max-width:900px){.nav ul{display:none}.nav .btn{margin-left:auto}}
@media (max-width:520px){
  .nav{padding:12px 16px;gap:12px}
  .mark{width:30px;height:30px}
  .brand b{font-size:15px}
  .nav .long{display:none}
  .nav .short{display:inline}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:12px 22px;border-radius:999px;font:500 15.5px/1.2 var(--f-body);text-align:center;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform 160ms var(--ease-out),background-color 160ms ease,color 160ms ease,border-color 160ms ease}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--accent-fill);color:var(--on-fill)}
.btn-ghost{border-color:var(--border);color:var(--text-primary);background:transparent}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14.5px}
.btn[disabled]{opacity:.65;cursor:progress}
@media (hover:hover) and (pointer:fine){
  .btn-primary:hover{background:var(--accent-fill-hover)}
  .btn-ghost:hover{border-color:var(--text-primary)}
}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}

/* The signature line */
.flow{position:relative}
.thread{position:absolute;top:0;left:calc(var(--gutter) - 12px);width:24px;height:100%;pointer-events:none;z-index:0}
.thread path{fill:none;stroke:var(--accent);stroke-width:1.5;stroke-linecap:round;filter:var(--thread-glow)}
.thread .ghost{stroke:var(--hair);filter:none}
.thread circle{fill:var(--canvas);stroke:var(--accent);stroke-width:1.5;opacity:.25;transition:opacity 200ms ease}
.thread circle.on{opacity:1}
@media (max-width:720px){.thread{left:6px}}

.sec{position:relative;z-index:1;padding:clamp(88px,13vh,150px) var(--gutter) clamp(88px,13vh,150px) calc(var(--gutter) + var(--indent));scroll-margin-top:56px}
.sec h2{font-size:clamp(32px,4.4vw,64px)}

/* Section entrances: visible by default, only hidden once JS can reveal them */
.js .rv{opacity:0;transform:translateY(14px);transition:opacity 500ms var(--ease-out),transform 500ms var(--ease-out)}
.js .in .rv{opacity:1;transform:none}
.js .in .rv:nth-child(2){transition-delay:60ms}
.js .in .rv:nth-child(3){transition-delay:120ms}
.js .in .rv:nth-child(4){transition-delay:180ms}

/* Footer */
.foot{position:relative;z-index:1;padding:48px var(--gutter) 36px calc(var(--gutter) + var(--indent));border-top:1px solid var(--hair);display:grid;gap:18px;color:var(--text-secondary);font-size:15px}
.foot-top{display:flex;justify-content:space-between;align-items:center;gap:18px 32px;flex-wrap:wrap}
.foot-brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text-primary);min-width:0;flex:1 1 280px}
.foot-brand .mark{width:28px;height:28px}
.foot-brand span{min-width:0}
.foot-links{display:flex;flex-wrap:wrap;gap:6px 24px;list-style:none;margin:0;padding:0}
.foot-links a{display:inline-block;padding:6px 0;text-underline-offset:3px;overflow-wrap:anywhere}
.foot-note{font-size:14px}
@media (hover:hover) and (pointer:fine){.foot a:hover{color:var(--accent-text)}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .js .rv{opacity:1;transform:none}
}