/* ==========================================================================
   237 STUDIO — 237studio.co
   ------------------------------------------------------------------------
   The name is a freeway. CA-237 runs along the south end of San Francisco
   Bay, so the whole visual system is borrowed from California guide signage:
   Highway Gothic letterforms (Overpass is the open derivative), guide-sign
   green, retroreflective white, and the spade route shield as the mark.

   Type   Overpass (display / UI)  ·  Source Serif 4 (reading)
          Overpass Mono (labels, status, data)
   Color  one accent, sign green. Amber is reserved for status badges only.
   ========================================================================== */

/* ── tokens: dark is the committed default ─────────────────────────────── */
:root{
  --bg:        #0C100E;
  --bg-2:      #121815;
  --panel:     #151D19;
  --card:      #1A2420;
  --card-hi:   #202C27;
  --line:      #2C3B34;
  --line-soft: #1E2925;

  --ink:       #EAEDE7;
  --ink-2:     #B3BDB6;
  --muted:     #7B8A82;

  --accent:    #3FBE79;
  --accent-hi: #74DBA1;
  --accent-ink:#06180F;
  --accent-dim:rgba(63,190,121,.26);
  --amber:     #E8B33C;
  --amber-dim: rgba(232,179,60,.10);

  --shadow: 0 24px 60px -28px rgba(0,0,0,.85);
  --grain-op: .10;
  --hatch-op: .05;
  --shot-bright: .92;

  --f-disp: "Overpass", "Helvetica Neue", sans-serif;
  --f-body: "Source Serif 4", Georgia, serif;
  --f-mono: "Overpass Mono", ui-monospace, "SFMono-Regular", monospace;

  --wrap: 1140px;
  --pad:  clamp(18px, 5vw, 52px);
  --gap:  clamp(28px, 5vw, 60px);
}

/* light: guide sign printed on warm paper */
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    --bg:        #F3F2EA;
    --bg-2:      #E9E8DE;
    --panel:     #FBFAF5;
    --card:      #FFFFFF;
    --card-hi:   #FFFFFF;
    --line:      #D2D1C3;
    --line-soft: #E4E3D8;

    --ink:       #141C18;
    --ink-2:     #3B4842;
    --muted:     #66736C;

    --accent:    #0E6B3E;
    --accent-hi: #0A5230;
    --accent-ink:#FFFFFF;
    --accent-dim:rgba(14,107,62,.18);
    --amber:     #8A5B06;
    --amber-dim: rgba(138,91,6,.12);

    --shadow: 0 20px 44px -26px rgba(20,28,24,.34);
    --grain-op: .05;
    --hatch-op: .045;
    --shot-bright: 1;
  }
}
:root[data-theme="light"]{
  --bg:        #F3F2EA;
  --bg-2:      #E9E8DE;
  --panel:     #FBFAF5;
  --card:      #FFFFFF;
  --card-hi:   #FFFFFF;
  --line:      #D2D1C3;
  --line-soft: #E4E3D8;

  --ink:       #141C18;
  --ink-2:     #3B4842;
  --muted:     #66736C;

  --accent:    #0E6B3E;
  --accent-hi: #0A5230;
  --accent-ink:#FFFFFF;
  --accent-dim:rgba(14,107,62,.18);
  --amber:     #8A5B06;
  --amber-dim: rgba(138,91,6,.12);

  --shadow: 0 20px 44px -26px rgba(20,28,24,.34);
  --grain-op: .05;
  --hatch-op: .045;
  --shot-bright: 1;
}

*,*::before,*::after{ box-sizing:border-box; }

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
  scroll-padding-top:82px;
}

body{
  margin:0;
  min-height:100%;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--f-body);
  font-size:17.5px;
  line-height:1.62;
  overflow-x:hidden;
  /* depth: sodium glow on the horizon, asphalt below */
  background-image:
    radial-gradient(110% 62% at 78% -12%, var(--accent-dim) 0%, rgba(0,0,0,0) 58%),
    radial-gradient(80% 46% at 8% 2%, var(--bg-2) 0%, rgba(0,0,0,0) 64%),
    linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 34%);
  background-attachment:fixed;
}

img,svg,video{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; }
p{ margin:0 0 1.05em; }
ul{ margin:0 0 1.05em; padding-left:1.1em; }
li{ margin:0 0 .4em; }
hr{ border:0; border-top:1px solid var(--line-soft); margin:var(--gap) 0; }

/* diagonal retroreflective hatch — the texture on a sign's edge stripe */
.hatch{
  position:fixed; inset:0; z-index:0; pointer-events:none;
  opacity:var(--hatch-op);
  background-image:repeating-linear-gradient(
    -58deg,
    currentColor 0 1px,
    rgba(0,0,0,0) 1px 13px
  );
  color:var(--accent);
  mask-image:radial-gradient(120% 80% at 70% 0%, #000 0%, rgba(0,0,0,0) 72%);
  -webkit-mask-image:radial-gradient(120% 80% at 70% 0%, #000 0%, rgba(0,0,0,0) 72%);
}
.grain{
  position:fixed; inset:0; z-index:99; pointer-events:none;
  opacity:var(--grain-op); mix-blend-mode:overlay;
  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='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap{
  width:100%; max-width:var(--wrap);
  margin-inline:auto; padding-inline:var(--pad);
  position:relative; z-index:1;
}
.wrap--narrow{ max-width:760px; }

.skip{
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--accent); color:var(--accent-ink);
  padding:10px 16px; font-family:var(--f-mono); font-size:13px;
}
.skip:focus{ left:8px; top:8px; }

:where(a,button,summary):focus-visible{
  outline:2px solid var(--accent-hi);
  outline-offset:3px;
  border-radius:2px;
}

/* ── shared type ────────────────────────────────────────────────────────── */
.eyebrow{
  font-family:var(--f-mono);
  font-size:clamp(10px,2.4vw,11.5px);
  letter-spacing:.19em; text-transform:uppercase;
  color:var(--muted); margin:0 0 14px;
}
.eyebrow--accent{ color:var(--accent); }

h1,h2,h3,h4{
  font-family:var(--f-disp);
  font-weight:800; line-height:1.03;
  letter-spacing:-.015em; margin:0 0 .5em;
  text-wrap:balance;
}
h2{ font-size:clamp(27px,5.2vw,44px); }
h3{ font-size:clamp(19px,3.4vw,25px); letter-spacing:-.008em; }
h4{ font-size:clamp(15px,2.6vw,17px); letter-spacing:.01em; }

.lede{
  font-size:clamp(17.5px,2.5vw,21px);
  line-height:1.55; color:var(--ink-2);
  max-width:60ch;
}
.small{ font-size:14.5px; color:var(--muted); }
strong{ color:var(--ink); font-weight:600; }
em{ font-style:italic; }

.link{
  color:var(--accent); text-decoration:underline;
  text-decoration-thickness:1px; text-underline-offset:3px;
  text-decoration-color:var(--accent-dim);
  transition:text-decoration-color .18s;
}
.link:hover{ text-decoration-color:currentColor; }

/* ── route shield mark ──────────────────────────────────────────────────── */
.shield{ display:block; width:100%; height:100%; }
.shield__plate{ fill:var(--accent); }
.shield__edge{ fill:none; stroke:var(--accent-ink); stroke-width:2.6; opacity:.5; }
.shield__num{
  fill:var(--accent-ink);
  font-family:var(--f-disp); font-weight:900;
  font-size:21px; letter-spacing:-.02em;
  text-anchor:middle;
}

/* ── topbar ─────────────────────────────────────────────────────────────── */
.topbar{
  position:sticky; top:0; z-index:60;
  background:color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.topbar__in{
  display:flex; align-items:center; gap:clamp(10px,3vw,26px);
  padding-block:11px; min-height:60px;
}
.brand{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.brand__shield{ width:27px; height:31px; flex:0 0 auto; }
.brand__txt{
  font-family:var(--f-disp); font-weight:900;
  font-size:clamp(15px,3.4vw,17px);
  letter-spacing:.015em; white-space:nowrap;
}
.brand__txt span{ color:var(--muted); font-weight:600; }

.nav{
  display:flex; align-items:center; gap:clamp(9px,2.4vw,22px);
  margin-left:auto; min-width:0;
}
.nav a{
  font-family:var(--f-mono);
  font-size:clamp(10.5px,2.5vw,12px);
  letter-spacing:.11em; text-transform:uppercase;
  color:var(--ink-2); white-space:nowrap;
  padding-block:6px; border-bottom:1px solid transparent;
  transition:color .16s, border-color .16s;
}
.nav a:hover,.nav a[aria-current="page"]{ color:var(--ink); border-bottom-color:var(--accent); }
.nav a.is-hideable{ display:none; }
@media (min-width:620px){ .nav a.is-hideable{ display:inline-block; } }

.themetog{
  flex:0 0 auto; width:32px; height:32px;
  display:grid; place-items:center;
  background:transparent; color:var(--ink-2);
  border:1px solid var(--line); border-radius:50%;
  cursor:pointer; padding:0;
  transition:color .16s, border-color .16s, transform .16s;
}
.themetog:hover{ color:var(--accent); border-color:var(--accent); transform:rotate(-18deg); }
.themetog svg{ width:15px; height:15px; }
.themetog .i-sun{ display:none; }
:root[data-theme="light"] .themetog .i-sun{ display:block; }
:root[data-theme="light"] .themetog .i-moon{ display:none; }
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]) .themetog .i-sun{ display:block; }
  :root:not([data-theme="dark"]) .themetog .i-moon{ display:none; }
}

/* ── hero ───────────────────────────────────────────────────────────────── */
.hero{ padding-block:clamp(56px,11vw,112px) clamp(38px,7vw,66px); position:relative; }
.hero__shield{
  width:clamp(64px,14vw,96px);
  height:clamp(74px,16vw,110px);
  margin-bottom:clamp(20px,4vw,30px);
}
.hero h1{
  font-size:clamp(46px,13.5vw,132px);
  font-weight:900; letter-spacing:-.035em;
  line-height:.88; margin:0 0 .22em;
}
.hero h1 .u{
  display:block; color:var(--accent);
  font-size:.44em; letter-spacing:-.01em; line-height:1;
  margin-top:.22em;
}
.hero .lede{ max-width:54ch; }

.milestrip{
  display:flex; flex-wrap:wrap; gap:8px;
  margin-top:clamp(24px,4vw,34px);
}
.chip{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--f-mono); font-size:11.5px;
  letter-spacing:.08em; text-transform:uppercase;
  padding:7px 13px; border-radius:999px;
  border:1px solid var(--line); background:var(--panel);
  color:var(--ink-2);
}
.chip b{ color:var(--ink); font-weight:600; letter-spacing:.04em; }
.dot{ width:7px; height:7px; border-radius:50%; flex:0 0 auto; background:var(--amber); }
.dot--go{ background:var(--accent); }
.dot--wait{ background:var(--muted); }

/* ── section frame ──────────────────────────────────────────────────────── */
.sec{ padding-block:clamp(46px,8vw,88px); position:relative; }
.sec--line{ border-top:1px solid var(--line-soft); }
.sec__head{ margin-bottom:clamp(26px,4.5vw,46px); }
.sec__head .lede{ margin-top:.4em; }

/* ── game rows ──────────────────────────────────────────────────────────── */
.game{
  display:grid; gap:clamp(20px,4vw,44px);
  grid-template-columns:1fr;
  align-items:center;
  padding-block:clamp(26px,4vw,42px);
}
.game + .game{ border-top:1px solid var(--line-soft); }
@media (min-width:860px){
  .game{ grid-template-columns:1.06fr .94fr; }
  .game--flip .game__media{ order:2; }
}

.game__media{
  position:relative; border-radius:4px; overflow:hidden;
  border:1px solid var(--line); background:var(--panel);
  box-shadow:var(--shadow);
}
.game__media img{
  width:100%; aspect-ratio:16/9; object-fit:cover;
  filter:brightness(var(--shot-bright)) saturate(1.04) contrast(1.05);
  transition:transform .6s cubic-bezier(.16,.8,.3,1);
}
.game__media:hover img{ transform:scale(1.028); }
.game__tag{
  position:absolute; left:0; bottom:0;
  font-family:var(--f-mono); font-size:10.5px;
  letter-spacing:.12em; text-transform:uppercase;
  padding:6px 11px;
  background:color-mix(in srgb, var(--bg) 84%, transparent);
  color:var(--ink-2);
  border-top:1px solid var(--line); border-right:1px solid var(--line);
}

.game__title{
  font-size:clamp(30px,6vw,50px); font-weight:900;
  letter-spacing:-.028em; margin:0 0 .1em;
}
.game__zh{
  font-family:var(--f-disp); font-weight:600;
  font-size:clamp(16px,3vw,20px); color:var(--muted);
  margin:0 0 .7em; letter-spacing:.04em;
}
.game__meta{
  display:flex; flex-wrap:wrap; gap:6px 8px;
  margin:0 0 18px; padding:0; list-style:none;
}
.game__meta li{
  font-family:var(--f-mono); font-size:11px;
  letter-spacing:.09em; text-transform:uppercase;
  color:var(--muted); margin:0;
  padding:4px 9px; border:1px solid var(--line-soft); border-radius:2px;
}

/* ── buttons ────────────────────────────────────────────────────────────── */
.btnrow{ display:flex; flex-wrap:wrap; gap:10px; margin-top:20px; }
.btn{
  display:inline-flex; align-items:center; gap:9px;
  font-family:var(--f-mono); font-size:12px;
  letter-spacing:.11em; text-transform:uppercase;
  padding:11px 19px; border-radius:2px;
  border:1px solid var(--line); color:var(--ink);
  background:var(--panel);
  transition:border-color .16s, color .16s, background .16s, transform .16s;
}
.btn:hover{ border-color:var(--accent); color:var(--accent); transform:translateY(-1px); }
.btn--go{
  background:var(--accent); border-color:var(--accent); color:var(--accent-ink);
  font-weight:700;
}
.btn:is(.btn--go):hover{
  background:var(--accent-hi); border-color:var(--accent-hi); color:var(--accent-ink);
}
.btn svg{ width:13px; height:13px; flex:0 0 auto; }

/* ── data table ─────────────────────────────────────────────────────────── */
.tablewrap{ overflow-x:auto; margin:0 0 1.2em; }
.dtable{
  width:100%; border-collapse:collapse;
  font-family:var(--f-mono); font-size:13px;
  min-width:min(100%, 380px);
}
.dtable th,.dtable td{
  text-align:left; padding:9px 12px 9px 0;
  border-bottom:1px solid var(--line-soft);
  vertical-align:top;
}
.dtable th{
  color:var(--muted); font-weight:400;
  letter-spacing:.08em; text-transform:uppercase;
  font-size:11px; white-space:nowrap; width:38%;
}
.dtable td{ color:var(--ink-2); }
.dtable td b{ color:var(--ink); font-weight:600; }

/* ── panels / notes ─────────────────────────────────────────────────────── */
.panel{
  background:var(--panel); border:1px solid var(--line);
  border-radius:4px; padding:clamp(18px,3.4vw,28px);
}
.note{
  border-left:2px solid var(--amber);
  background:var(--amber-dim);
  padding:14px clamp(14px,2.6vw,20px);
  border-radius:0 3px 3px 0;
  margin:0 0 1.2em;
  font-size:15.5px; color:var(--ink-2);
}
.note :last-child{ margin-bottom:0; }
.note b{ color:var(--ink); }

.cols{ display:grid; gap:var(--gap); grid-template-columns:1fr; }
@media (min-width:820px){
  .cols--2{ grid-template-columns:1fr 1fr; }
  .cols--sidebar{ grid-template-columns:1.5fr 1fr; align-items:start; }
}

/* ── shot grid (game pages) ─────────────────────────────────────────────── */
.shots{ display:grid; gap:12px; grid-template-columns:1fr; }
@media (min-width:640px){ .shots{ grid-template-columns:1fr 1fr; } }
.shots figure{ margin:0; }
.shots img{
  width:100%; aspect-ratio:16/9; object-fit:cover;
  border:1px solid var(--line); border-radius:3px;
  filter:brightness(var(--shot-bright));
}
.shots figcaption{
  font-family:var(--f-mono); font-size:10.5px;
  letter-spacing:.1em; text-transform:uppercase;
  color:var(--muted); margin-top:7px;
}

/* ── legal prose ────────────────────────────────────────────────────────── */
.prose h2{
  font-size:clamp(20px,3.6vw,26px);
  margin-top:2em; padding-top:.9em;
  border-top:1px solid var(--line-soft);
}
.prose h2:first-of-type{ margin-top:1.2em; }
.prose h3{ font-size:clamp(16px,2.8vw,18.5px); margin-top:1.7em; }
.prose{ font-size:16.5px; }
.prose li{ margin-bottom:.5em; }
.legalhead{
  font-family:var(--f-mono); font-size:12px;
  letter-spacing:.1em; text-transform:uppercase;
  color:var(--muted);
  display:flex; flex-wrap:wrap; gap:6px 20px;
  padding-bottom:1.2em; border-bottom:1px solid var(--line-soft);
}

/* ── contact ────────────────────────────────────────────────────────────── */
.mail{
  font-family:var(--f-disp); font-weight:800;
  font-size:clamp(21px,5vw,38px);
  letter-spacing:-.02em; color:var(--accent);
  word-break:break-word; display:inline-block;
  border-bottom:2px solid var(--accent-dim);
  transition:border-color .18s;
}
.mail:hover{ border-bottom-color:var(--accent); }

.linklist{ list-style:none; padding:0; margin:0; }
.linklist li{ border-bottom:1px solid var(--line-soft); margin:0; }
.linklist a{
  display:flex; align-items:baseline; gap:12px;
  padding:11px 0; color:var(--ink-2);
  font-family:var(--f-mono); font-size:13px;
  transition:color .16s, padding-left .16s;
}
.linklist a:hover{ color:var(--accent); padding-left:5px; }
.linklist .k{ color:var(--muted); font-size:11px; letter-spacing:.1em; text-transform:uppercase; min-width:88px; }

/* ── footer ─────────────────────────────────────────────────────────────── */
.foot{
  border-top:1px solid var(--line);
  background:var(--bg-2);
  padding-block:clamp(34px,6vw,54px) clamp(26px,4vw,38px);
  margin-top:clamp(40px,7vw,80px);
  position:relative; z-index:1;
}
.foot__grid{
  display:grid; gap:clamp(22px,4vw,40px);
  grid-template-columns:1fr;
}
@media (min-width:700px){ .foot__grid{ grid-template-columns:1.3fr 1fr 1fr; } }
.foot h4{
  font-family:var(--f-mono); font-size:10.5px; font-weight:400;
  letter-spacing:.16em; text-transform:uppercase;
  color:var(--muted); margin:0 0 12px;
}
.foot ul{ list-style:none; padding:0; margin:0; }
.foot li{ margin:0 0 7px; }
.foot li a{ color:var(--ink-2); font-size:14.5px; transition:color .16s; }
.foot li a:hover{ color:var(--accent); }
.foot__legal{
  margin-top:clamp(26px,4vw,40px);
  padding-top:18px; border-top:1px solid var(--line-soft);
  font-family:var(--f-mono); font-size:11.5px; line-height:1.75;
  color:var(--muted);
}
.foot__legal p{ margin:0 0 .35em; }

/* ── 404 ────────────────────────────────────────────────────────────────── */
.oops{
  min-height:62vh; display:flex; flex-direction:column;
  justify-content:center; padding-block:clamp(50px,10vw,90px);
}
.oops__code{
  font-family:var(--f-disp); font-weight:900;
  font-size:clamp(78px,22vw,190px); line-height:.82;
  letter-spacing:-.05em; color:var(--accent);
  margin:0 0 .12em;
}

/* ── motion: one staggered reveal, and nothing else ─────────────────────── */
.js-reveal .rise{ opacity:0; transform:translateY(16px); }
.rise.in{
  opacity:1; transform:none;
  transition:opacity .62s cubic-bezier(.16,.8,.3,1), transform .62s cubic-bezier(.16,.8,.3,1);
  transition-delay:var(--d,0ms);
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .rise{ opacity:1; transform:none; }
  .rise.in{ transition:none; }
  .game__media img,.btn,.themetog{ transition:none; }
}

/* Without .js-reveal on <html> nothing is ever hidden, so a JS failure,
   an old browser or reduced-motion all degrade to plain visible content. */