/* DetectiveX — noir case-file. Zero dependencies, system fonts only. */
:root{
  --ink:#0b0d10;          /* page night */
  --ink2:#101319;
  --card:#151922;
  --line:#262c38;
  --manila:#e9dcba;       /* case-file paper */
  --manila-ink:#2a2419;
  --gold:#d8b25e;
  --red:#e5484d;
  --text:#ece7da;
  --dim:#a7a091;
  --type:"Courier New",Courier,"Nimbus Mono PS",monospace;
  --sans:ui-sans-serif,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans","Noto Sans CJK SC",sans-serif;
  --cursor-glass:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='36' height='36' viewBox='0 0 36 36'%3E%3Cg fill='none' stroke='%23e8d9a8' stroke-width='2.6' stroke-linecap='round'%3E%3Ccircle cx='14' cy='14' r='9.4' fill='rgba(16,19,25,0.28)'/%3E%3Cpath d='M21.2 21.2 31 31'/%3E%3C/g%3E%3Ccircle cx='10.6' cy='10.6' r='2.6' fill='rgba(255,255,255,0.4)'/%3E%3C/svg%3E") 14 14;
  --cursor-glass-hot:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='36' height='36' viewBox='0 0 36 36'%3E%3Cg fill='none' stroke='%23e5484d' stroke-width='2.8' stroke-linecap='round'%3E%3Ccircle cx='14' cy='14' r='9.4' fill='rgba(16,19,25,0.28)'/%3E%3Cpath d='M21.2 21.2 31 31'/%3E%3C/g%3E%3Ccircle cx='10.6' cy='10.6' r='2.6' fill='rgba(255,255,255,0.45)'/%3E%3C/svg%3E") 14 14;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html,body{background:var(--ink);color:var(--text)}
body{
  font-family:var(--sans);line-height:1.6;overflow-x:hidden;
  cursor:var(--cursor-glass),auto;
  background-image:
    radial-gradient(1200px 600px at 70% -10%, rgba(216,178,94,.05), transparent 60%),
    radial-gradient(900px 500px at 10% 30%, rgba(229,72,77,.04), transparent 60%);
}
a,button,summary,[role="button"]{cursor:var(--cursor-glass-hot),pointer}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:rgba(229,72,77,.6);color:#fff}

/* ---------- fog ---------- */
#fog{position:fixed;inset:0;z-index:60;width:100vw;height:100vh;background:#07080b;pointer-events:none}
#fog.is-ready{position:absolute;inset:auto;top:0;left:0;background:transparent}
/* The hint sits low, inside the fog and clear of the opening hole, so it never
   covers the headline or the download buttons. It fades on first exploration. */
#fog-hint{
  position:fixed;left:50%;top:78%;transform:translate(-50%,-50%);z-index:61;pointer-events:none;
  display:flex;align-items:center;gap:10px;padding:13px 22px;border-radius:999px;
  background:rgba(14,16,22,.72);border:1px solid rgba(233,220,186,.35);backdrop-filter:blur(6px);
  font-family:var(--type);font-size:15px;letter-spacing:.06em;color:var(--manila);
  box-shadow:0 8px 40px rgba(0,0,0,.55);
  animation:hintFloat 2.6s ease-in-out infinite;
  transition:opacity .9s ease, visibility .9s;
}
#fog-hint .fh-glass{font-size:20px;animation:hintSweep 2.6s ease-in-out infinite}
#fog-hint.gone{opacity:0;visibility:hidden}
#fog-hint .fh-touch{display:none}
@media (hover:none){ #fog-hint .fh-mouse{display:none} #fog-hint .fh-touch{display:inline} }
@keyframes hintFloat{0%,100%{transform:translate(-50%,-50%)}50%{transform:translate(-50%,calc(-50% - 7px))}}
@keyframes hintSweep{0%,100%{transform:translate(-4px,0) rotate(-8deg)}50%{transform:translate(4px,-3px) rotate(8deg)}}

/* ---------- nav ---------- */
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px clamp(18px,4vw,44px);position:relative;z-index:5}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:30px;height:30px;color:var(--gold)}
.brand-word{font-weight:800;font-size:19px;letter-spacing:.02em}
.brand-word em{font-style:normal;color:var(--red)}
.nav-links{display:flex;gap:26px;font-size:14.5px;color:var(--dim)}
.nav-links a:hover{color:var(--text)}
.nav-side{display:flex;align-items:center;gap:14px}
.lang{position:relative}
.lang summary{list-style:none;font-family:var(--type);font-size:13px;letter-spacing:.08em;padding:7px 12px;border:1px solid var(--line);border-radius:999px;color:var(--dim);user-select:none}
.lang summary::-webkit-details-marker{display:none}
.lang[open] summary{color:var(--text);border-color:var(--gold)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);display:grid;min-width:130px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:6px;box-shadow:0 18px 50px rgba(0,0,0,.5);z-index:50}
.lang-menu a{padding:8px 12px;border-radius:8px;font-size:13.5px;color:var(--dim)}
.lang-menu a:hover{background:var(--ink2);color:var(--text)}
.lang-menu a.on{color:var(--gold)}
.nav-cta{font-size:14px;font-weight:700;padding:9px 18px;border-radius:999px;background:var(--red);color:#fff;box-shadow:0 4px 22px rgba(229,72,77,.35)}
.nav-cta:hover{filter:brightness(1.08)}

/* ---------- hero ---------- */
.hero{position:relative;z-index:4;max-width:1060px;margin:0 auto;padding:clamp(48px,9vh,110px) 22px 60px;text-align:center}
.case-stamp{
  display:inline-block;font-family:var(--type);font-size:13.5px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--red);border:1.6px solid currentColor;border-radius:5px;padding:6px 14px;
  transform:rotate(-2deg);opacity:.92;
}
.hero h1{
  margin:30px auto 0;max-width:16em;
  font-size:clamp(40px,7.2vw,84px);line-height:1.08;font-weight:900;letter-spacing:-.015em;
}
.hero h1 mark{
  background:linear-gradient(100deg, transparent 2%, rgba(229,72,77,.92) 3%, rgba(229,72,77,.85) 96%, transparent 98%);
  color:#fff;padding:.02em .14em;border-radius:.08em;
  display:inline-block;transform:rotate(-1.2deg);
}
.hero-sub{margin:26px auto 0;max-width:34em;font-size:clamp(16px,2vw,19.5px);color:var(--dim)}
.badges{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.badge{
  display:flex;align-items:center;gap:11px;padding:11px 20px;border-radius:14px;
  background:#f5efdf;color:#14120c;min-width:186px;text-align:left;
  box-shadow:0 6px 30px rgba(0,0,0,.4);
}
.badge svg{width:26px;height:26px;flex:none}
.badge span{display:flex;flex-direction:column;line-height:1.2;font-weight:800;font-size:16.5px}
.badge small{font-weight:600;font-size:11px;opacity:.62;letter-spacing:.02em}
.badge:hover{transform:translateY(-2px);transition:transform .25s}
.hero-chips{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.chip{font-family:var(--type);font-size:13px;letter-spacing:.05em;color:var(--manila);border:1px dashed rgba(233,220,186,.45);border-radius:999px;padding:7px 15px}
.hero-soon{margin-top:22px;font-size:13px;color:var(--dim);opacity:.85}

/* ---------- field reel ----------
   A contact sheet of looping clips that drifts sideways. Tiles are portrait so
   they read as phone footage; the strip is duplicated in JS for a seamless loop
   and pauses on hover / reduced motion. */
.reel{position:relative;z-index:4;padding:8px 0 26px;overflow:hidden}
.reel::before,.reel::after{content:"";position:absolute;top:0;bottom:0;width:12vw;max-width:160px;z-index:2;pointer-events:none}
.reel::before{left:0;background:linear-gradient(90deg,var(--ink),transparent)}
.reel::after{right:0;background:linear-gradient(270deg,var(--ink),transparent)}
.reel-track{display:flex;gap:clamp(10px,1.4vw,18px);width:max-content;animation:reelDrift 64s linear infinite;will-change:transform}
.reel:hover .reel-track{animation-play-state:paused}
.tile{
  flex:none;width:clamp(132px,15vw,208px);aspect-ratio:9/16;border-radius:14px;overflow:hidden;
  background:var(--ink2);border:1px solid var(--line);
  box-shadow:0 14px 40px rgba(0,0,0,.5);position:relative;
}
.tile::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(7,8,11,.55));pointer-events:none}
.tile video{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(.94) contrast(1.05)}
.reel-cap{margin:20px auto 0;text-align:center;font-family:var(--type);font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);opacity:.7}
@keyframes reelDrift{to{transform:translateX(-50%)}}

/* ---------- waitlist ---------- */
.wait{margin:34px auto 0;max-width:520px;text-align:left}
.wait-hero{margin-top:30px}
.wait-label{display:block;font-family:var(--type);font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:10px;text-align:center}
.wait-row{display:flex;gap:10px}
.wait input{
  flex:1;min-width:0;padding:14px 18px;border-radius:12px;font-size:16px;font-family:inherit;
  background:var(--card);border:1px solid var(--line);color:var(--text);
}
.wait input::placeholder{color:var(--dim);opacity:.65}
.wait input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(216,178,94,.16)}
.wait button{
  flex:none;padding:14px 24px;border-radius:12px;border:0;font-size:15.5px;font-weight:800;font-family:inherit;
  background:var(--red);color:#fff;box-shadow:0 6px 24px rgba(229,72,77,.34);
}
.wait button:hover{filter:brightness(1.08)}
.wait button:disabled{opacity:.55;filter:none}
.wait-note{margin-top:12px;text-align:center;font-size:12.5px;color:var(--dim);opacity:.8}
.wait-msg{margin-top:12px;text-align:center;font-size:14.5px;min-height:1.4em}
.wait-msg.ok{color:var(--gold)}
.wait-msg.err{color:var(--red)}

/* ---------- marquee ---------- */
.marquee{position:relative;z-index:4;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(21,25,34,.55)}
.marquee-track{display:inline-flex;white-space:nowrap;animation:marq 34s linear infinite;padding:12px 0}
.marquee-track span{font-family:var(--type);font-size:13.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);padding:0 34px;position:relative}
.marquee-track span::after{content:"◆";position:absolute;right:-8px;color:var(--red);font-size:9px;top:4px}
@keyframes marq{to{transform:translateX(-50%)}}

/* ---------- shared ---------- */
.section{position:relative;z-index:4;padding:clamp(66px,10vh,120px) 22px}
.wrap{max-width:1020px;margin:0 auto}
.kicker{font-family:var(--type);font-size:13px;letter-spacing:.24em;text-transform:uppercase;color:var(--gold)}
.h2{margin-top:14px;font-size:clamp(30px,4.6vw,52px);font-weight:900;line-height:1.12;letter-spacing:-.01em}
.sub{margin-top:14px;max-width:38em;color:var(--dim);font-size:clamp(15.5px,1.8vw,18px)}

/* ---------- briefing letter ---------- */
.letter{
  margin-top:26px;background:var(--manila);color:var(--manila-ink);
  border-radius:6px;padding:clamp(28px,5vw,54px);
  font-family:var(--type);
  box-shadow:0 24px 70px rgba(0,0,0,.5), inset 0 0 90px rgba(120,95,40,.14);
  position:relative;transform:rotate(-.4deg);
}
.letter::before{
  content:"";position:absolute;top:-12px;left:50%;transform:translateX(-50%) rotate(1.6deg);
  width:120px;height:26px;background:rgba(240,235,215,.6);border:1px solid rgba(90,75,40,.25);
  box-shadow:0 2px 8px rgba(0,0,0,.18);
}
.letter-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.letter-stamp{color:#b3272e;border:2.4px solid currentColor;border-radius:4px;padding:4px 12px;font-weight:700;font-size:13.5px;letter-spacing:.28em;text-transform:uppercase;transform:rotate(-6deg);opacity:.82}
.letter-no{font-size:12.5px;letter-spacing:.14em;opacity:.65}
.letter-title{margin-top:30px;font-size:clamp(24px,3.6vw,38px);line-height:1.25;font-weight:700;letter-spacing:.01em}
.letter-body{margin-top:20px;font-size:clamp(14.5px,1.7vw,16.5px);line-height:1.85;max-width:44em}
.letter-sign{margin-top:30px;font-size:15.5px;font-weight:700}
.letter-ps{margin-top:14px;font-size:13px;opacity:.72}

/* ---------- steps ---------- */
.steps{margin-top:44px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;list-style:none;counter-reset:s}
.step{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px 20px 26px;position:relative;overflow:hidden}
.step::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(216,178,94,.06),transparent 42%);pointer-events:none}
.step-no{font-family:var(--type);font-size:13px;letter-spacing:.2em;color:var(--red)}
.step h3{margin-top:12px;font-size:19px;font-weight:800}
.step p{margin-top:9px;font-size:14.5px;color:var(--dim)}
.badge-note{
  margin-top:26px;display:flex;gap:16px;align-items:center;
  background:linear-gradient(120deg,rgba(216,178,94,.14),rgba(216,178,94,.05));
  border:1px solid rgba(216,178,94,.4);border-radius:16px;padding:20px 24px;
}
.bn-medal{width:40px;height:40px;flex:none;color:var(--gold)}
.badge-note p{font-size:15.5px;color:var(--text)}

/* ---------- evidence board ---------- */
.board{
  margin:52px auto 0;max-width:1160px;padding:0 22px 30px;
  display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(12px,2vw,26px);align-items:start;
}
.polaroid{
  background:#f4eede;padding:10px 10px 14px;border-radius:3px;
  box-shadow:0 16px 44px rgba(0,0,0,.5);position:relative;
}
.polaroid::before{
  content:"";position:absolute;top:-10px;left:50%;transform:translateX(-50%) rotate(-2deg);
  width:74px;height:20px;background:rgba(236,231,214,.55);border:1px solid rgba(90,75,40,.2);
}
.polaroid img{aspect-ratio:3/4;object-fit:cover;border-radius:2px;filter:saturate(.92) contrast(1.04)}
.polaroid figcaption{font-family:var(--type);font-size:11.8px;letter-spacing:.03em;color:#3a3223;padding-top:9px;line-height:1.45}
.p1{transform:rotate(-2.4deg)}
.p2{transform:rotate(1.6deg) translateY(18px)}
.p3{transform:rotate(-1.2deg)}
.p4{transform:rotate(2.2deg) translateY(12px)}
.p5{transform:rotate(-1.8deg)}
.polaroid:hover{transform:rotate(0) scale(1.03);transition:transform .3s;z-index:3}

/* ---------- faq ---------- */
.faqs{margin-top:34px;display:grid;gap:12px;max-width:820px}
.faqs details{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faqs summary{list-style:none;display:flex;align-items:center;gap:14px;padding:19px 22px;font-weight:700;font-size:16.5px;user-select:none}
.faqs summary::-webkit-details-marker{display:none}
.faqs summary::before{content:"?";flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:rgba(229,72,77,.16);color:var(--red);font-family:var(--type);font-size:15px;font-weight:700}
.faqs details[open] summary::before{content:"!";background:rgba(216,178,94,.18);color:var(--gold)}
.faqs details p{padding:0 22px 20px 62px;color:var(--dim);font-size:15px;line-height:1.75}
.faq-legal p{font-size:13.5px}

/* ---------- cta ---------- */
.cta{position:relative;z-index:4;text-align:center;padding:clamp(72px,11vh,130px) 22px;border-top:1px solid var(--line);background:radial-gradient(700px 320px at 50% 0%,rgba(229,72,77,.09),transparent 70%)}
.cta .sub{margin-left:auto;margin-right:auto}

/* ---------- footer ---------- */
.foot{position:relative;z-index:4;border-top:1px solid var(--line);padding:52px 22px 64px;text-align:center}
.foot-brand{display:flex;align-items:center;justify-content:center;gap:10px}
.foot-tag{margin-top:14px;color:var(--dim);font-size:14.5px}
.foot-legal{margin:18px auto 0;max-width:56em;color:var(--dim);opacity:.72;font-size:12.5px;line-height:1.7}
.foot-langs{margin-top:22px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap;font-size:13px;color:var(--dim)}
.foot-langs a.on{color:var(--gold)}
.foot-copy{margin-top:20px;font-size:12.5px;color:var(--dim);opacity:.75}
.foot-copy a:hover{color:var(--text)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0s)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .board{grid-template-columns:repeat(3,1fr)}
  .p5{display:none}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  .nav-links{display:none}
  .hero h1{max-width:12em}
  .board{grid-template-columns:repeat(2,1fr)}
  .p2,.p4{transform:rotate(1.6deg)}
}
@media (max-width:560px){
  .steps{grid-template-columns:1fr}
  .board{grid-template-columns:1fr 1fr;gap:14px}
  .badge{min-width:160px;padding:10px 16px}
  .badge-note{flex-direction:column;text-align:center}
  .letter{transform:none}
  #fog-hint{width:max-content;max-width:86vw;font-size:13.5px}
  .tile{width:clamp(118px,34vw,150px)}
  .wait-row{flex-direction:column}
  .wait button{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .marquee-track,.reel-track{animation:none}
  .reel-track{overflow-x:auto}
  #fog-hint{animation:none}
  #fog-hint .fh-glass{animation:none}
}