/* Rift site v3 — shared styles (landing + download) */

/* ---------- Tokens ---------- */
:root{
  /* Paper (light): warm ivory paper, ink text, bronze accent */
  --stone:#EEEBE4;
  --stone2:#E4DFD4;
  --stone3:#D7D1C4;
  --ink:#17140F;
  --ink2:#2A251D;
  --cobalt:#1E46D8;          /* primary accent (name kept for the markup) */
  --signal:#1838B5;          /* highlight blue: labels, serif accents, cursor */
  --press:#142E94;           /* hover/press fill on blue buttons */
  --danger:#B32638;
  --green:#1C7A58;
  --steel:#1F7F86;
  --mute:#575045;
  --on-accent:#FFFFFF;
  --hair:rgba(23,20,15,.13);
  --glass:rgba(238,235,228,.8);
  /* "Inside the rift" is always dark, in both themes */
  --void:#050608;
  --void2:#0C0D11;
  --void-line:rgba(225,232,255,.08);
  --void-text:#ECEEF3;
  --void-mute:#8A90A0;
  --shadow:0 30px 80px -24px rgba(40,30,15,.3);
  --f:"Bricolage Grotesque",system-ui,-apple-system,"Segoe UI",sans-serif;
  --serif:"Instrument Serif",ui-serif,Georgia,serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
  --spring:cubic-bezier(.2,1.25,.3,1);
  --gut:clamp(16px,4vw,56px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="stone"]){
    --stone:#050608;--stone2:#0C0D11;--stone3:#16181E;
    --ink:#ECEEF3;--ink2:#D3D7E0;--mute:#A2A7B3;
    --cobalt:#4C7DFF;--signal:#8FAEFF;--press:#2F5BE0;--danger:#F0596A;--green:#4CC89A;--steel:#5EC4C4;--on-accent:#FFFFFF;
    --hair:rgba(225,232,255,.09);--glass:rgba(5,6,8,.8);
    --shadow:0 30px 80px -24px rgba(0,0,0,.85);
    color-scheme:dark;
  }
}
:root[data-theme="obsidian"]{
  --stone:#050608;--stone2:#0C0D11;--stone3:#16181E;
  --ink:#ECEEF3;--ink2:#D3D7E0;--mute:#A2A7B3;
  --cobalt:#4C7DFF;--signal:#8FAEFF;--press:#2F5BE0;--danger:#F0596A;--green:#4CC89A;--steel:#5EC4C4;--on-accent:#FFFFFF;
  --hair:rgba(225,232,255,.09);--glass:rgba(5,6,8,.8);
  --shadow:0 30px 80px -24px rgba(0,0,0,.85);
  color-scheme:dark;
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--stone);color:var(--ink);
  font:400 1.0625rem/1.55 var(--f);font-variation-settings:"wdth" 92,"opsz" 18;
  overflow-x:hidden;transition:background-color .4s var(--ease),color .4s var(--ease);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
:focus-visible{outline:3px solid var(--cobalt);outline-offset:3px;border-radius:4px}
code,.mono{font-family:var(--mono);font-feature-settings:"tnum","zero";font-variation-settings:normal}
em.s,.s{font-family:var(--serif);font-style:italic;font-weight:400;font-variation-settings:normal;letter-spacing:-.01em}
.wrap{max-width:1480px;margin:0 auto;padding:0 var(--gut)}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Film grain */
.grain{position:fixed;inset:-50%;z-index:100;pointer-events:none;opacity:.06;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 1.2s steps(6) infinite}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-3%,2%)}40%{transform:translate(2%,-4%)}60%{transform:translate(-4%,-1%)}80%{transform:translate(3%,3%)}100%{transform:translate(0,0)}}

/* ---------- Nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:14px var(--gut);transition:transform .5s var(--ease),background .4s,border-color .4s;
  border-bottom:1px solid transparent}
.nav.solid{background:var(--glass);backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);border-bottom-color:var(--hair)}
.nav.hide{transform:translateY(-110%)}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.55rem;letter-spacing:-.045em;font-variation-settings:"wdth" 88,"opsz" 48}
.logo svg{width:15px;height:26px;color:var(--ink);overflow:visible;transition:transform .5s var(--spring)}
.mk .lh{fill:currentColor}.mk .rh{fill:var(--cobalt);transition:transform .5s var(--spring)}
.logo:hover .mk .lh{transform:translate(-2.2px,-6.6px)}.logo:hover .mk .rh{transform:translate(2.2px,6.6px)}
.logo:hover svg{transform:none}
.nav-links{display:flex;gap:4px;align-items:center}
.nav-links a.lk{padding:8px 14px;border-radius:99px;font-weight:600;font-size:.95rem;color:var(--mute);transition:color .2s,background .2s}
.nav-links a.lk:hover,.nav-links a.lk[aria-current]{color:var(--ink);background:var(--stone2)}
.nav-act{display:flex;gap:8px;align-items:center}

.pill{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1.5px solid var(--ink);border-radius:99px;
  padding:9px 18px;font-weight:650;font-size:.95rem;font-variation-settings:"wdth" 90;background:transparent;color:var(--ink);
  position:relative;overflow:hidden;isolation:isolate;white-space:nowrap;transition:color .3s var(--ease),border-color .3s,transform .3s var(--spring)}
.pill::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--ink);border-radius:inherit;
  transform:translateY(101%);transition:transform .45s var(--ease)}
.pill:hover{color:var(--stone)}
.pill:hover::before{transform:none}
.pill:active{transform:scale(.97)}
.pill.hot{background:var(--cobalt);border-color:var(--cobalt);color:var(--on-accent)}
.pill.hot::before{background:var(--press)}
.pill.hot:hover{color:var(--on-accent);border-color:var(--press)}
.pill.lg{padding:16px 30px;font-size:1.1rem}
.pill.ico{padding:9px 11px}
.pill svg{flex:none}

/* ---------- Kinetic type ---------- */
[data-split]{font-kerning:normal}
.w{display:inline-block;white-space:nowrap;overflow:hidden;vertical-align:top;padding:0 .08em .1em .02em;margin:0 -.06em -.1em 0}
.ch{display:inline-block;will-change:transform;transition:font-variation-settings .35s var(--ease),color .3s}
[data-split] .ch{transform:translateY(110%) rotate(8deg);transform-origin:0 100%}
[data-split].in .ch{transform:none;transition:transform 1s var(--ease),font-variation-settings .35s var(--ease),color .3s;transition-delay:calc(var(--i)*18ms),0s,0s}
.rv{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:var(--d,0s)}
.rv.in{opacity:1;transform:none}

/* Section labels */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--mute)}
.eyebrow b{color:var(--signal);font-weight:700}
.eyebrow::before{content:"";width:28px;height:1.5px;background:currentColor}

/* ---------- Marquee ---------- */
.mq{overflow:hidden;white-space:nowrap;background:var(--ink);color:var(--stone);padding:18px 0;position:relative;z-index:2}
.mq-track{display:inline-flex;will-change:transform}
.mq-track span{font-size:clamp(2.2rem,6vw,5.2rem);font-weight:750;letter-spacing:-.04em;font-variation-settings:"wdth" 80,"opsz" 96;padding:0 .35em;line-height:1}
.mq-track i{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--signal);font-size:clamp(2.2rem,6vw,5.2rem);line-height:1}

/* ---------- Big end ---------- */
.end{padding:clamp(80px,12vw,180px) 0 0;overflow:hidden}
.big{display:flex;justify-content:center;font-weight:800;font-size:clamp(9rem,58vw,62rem);line-height:.8;letter-spacing:-.075em;
  font-variation-settings:"wdth" 75,"opsz" 96;user-select:none;margin:0 -.04em}
.big span{display:inline-block;padding:0 .1em .04em;margin:0 -.1em;color:transparent;-webkit-background-clip:text;background-clip:text;
  background-image:radial-gradient(circle at var(--mx,50%) var(--my,50%),var(--cobalt) 0 22%,var(--ink) 22.2%);
  background-size:var(--bw,100%) 100%;background-position:var(--bx,0) 0;transition:transform .7s var(--spring)}
.big:hover span:nth-child(1){transform:translate(-.06em,.02em) rotate(-3deg)}
.big:hover span:nth-child(2){transform:translate(-.02em,-.04em) rotate(2deg)}
.big:hover span:nth-child(3){transform:translate(.03em,.03em) rotate(-2deg)}
.big:hover span:nth-child(4){transform:translate(.07em,-.02em) rotate(3deg)}
footer.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px 32px;padding:28px 0 40px;margin-top:28px;
  border-top:1.5px solid var(--ink);color:var(--mute);font-size:.95rem}
footer.foot a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}

/* ---------- Tear transition ---------- */
#tear{position:fixed;inset:0;z-index:200;pointer-events:none}
#tear i{position:absolute;inset:0;background:var(--cobalt);transition:transform .6s cubic-bezier(.7,0,.2,1)}
#tear i:first-child{clip-path:polygon(0 0,54% 0,46% 38%,55% 52%,47% 74%,52% 100%,0 100%);transform:translateX(-101%)}
#tear i:last-child{clip-path:polygon(53.6% 0,100% 0,100% 100%,51.6% 100%,46.6% 74%,54.6% 52%,45.6% 38%);transform:translateX(101%)}
#tear.shut i{transform:none}
#tear.instant i{transition:none}

/* ---------- Cursor ---------- */
.cur{position:fixed;left:0;top:0;z-index:150;pointer-events:none;width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;
  background:var(--signal);mix-blend-mode:normal;transition:width .3s var(--spring),height .3s var(--spring),margin .3s var(--spring),background .3s,opacity .3s;opacity:0}
.cur.on{opacity:1}
.cur.link{width:46px;height:46px;margin:-23px 0 0 -23px;background:transparent;border:1.5px solid var(--signal)}
@media (hover:none),(pointer:coarse){.cur{display:none}}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:24px;z-index:160;transform:translate(-50%,180%);background:var(--ink);color:var(--stone);
  padding:13px 22px;border-radius:99px;font-weight:600;font-size:.95rem;max-width:calc(100vw - 32px);box-shadow:0 14px 34px rgba(0,0,0,.3);
  transition:transform .55s var(--spring);pointer-events:none;text-align:center}
.toast.on{transform:translate(-50%,0)}

/* ---------- App-window primitives (dark "void" surface, both themes) ---------- */
.void{background:var(--void);color:var(--void-text);border:1px solid var(--void-line);border-radius:22px 8px 22px 8px;box-shadow:var(--shadow);overflow:hidden;position:relative}
.vbtn{font-family:var(--mono);font-size:.76rem;font-weight:600;padding:6px 12px;border-radius:7px;background:rgba(255,255,255,.06);
  border:1px solid var(--void-line);color:var(--void-text);transition:background .2s,border-color .2s,color .2s;white-space:nowrap}
.vbtn:hover{background:var(--cobalt);border-color:var(--cobalt);color:var(--on-accent)}
.vbtn[aria-pressed="true"]{background:var(--cobalt);border-color:var(--cobalt);color:var(--on-accent)}

/* ---------- Responsive / motion ---------- */
@media (max-width:820px){
  .nav-links{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;transition-delay:0s!important}
  [data-split] .ch{transform:none}
  .rv{opacity:1;transform:none}
  .grain{display:none}
}