/* ============================================================
   SIGNAL — Episode 10 · When AI Goes Off the Rails
   Premium "research-paper-as-a-luxury-site" theme.
   Darker, more dramatic variant of the Episode 01 template:
   gold stays the brand; a restrained EMBER/crimson accent marks
   danger (hot chart bar, pull-quote, section markers, warnings).
   ============================================================ */
:root{
  --gold:#d9c08a; --gold-soft:#e8d7a8; --gold-deep:#b9995a;
  --ember:#cf5a3b; --ember-soft:#e2734f; --ember-deep:#7c2d1e; --crimson:#a33324;
  --ink:#040405; --ink-2:#0a0a0e; --paper:#efe9dc; --muted:#9c968a;
  --serif:'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --sans:'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --col: min(92vw, 640px);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{ box-sizing:border-box; -webkit-tap-highlight-color:transparent; }
html{ scroll-behavior:smooth; }
html,body{ margin:0; background:var(--ink); color:var(--paper);
  font-family:var(--sans); overscroll-behavior-y:none; }
body{ position:relative; overflow-x:hidden; }
img{ display:block; max-width:100%; }
::selection{ background:rgba(207,90,59,.30); color:#fff; }

/* ---- ambient layers ---- */
#net{ position:fixed; inset:0; z-index:0; width:100%; height:100%; display:block;
  pointer-events:none; opacity:.9; }
#grain{ position:fixed; inset:0; z-index:60; pointer-events:none; opacity:.05; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
/* a faint ember vignette deepens the "something is wrong" mood */
#vign{ position:fixed; inset:0; z-index:1; pointer-events:none;
  background:radial-gradient(120% 80% at 50% 118%, rgba(124,45,30,.20), transparent 55%); }

/* thin scroll-progress bar — gold fading to ember as you go deeper */
#prog{ position:fixed; top:0; left:0; right:0; height:2px; z-index:70; background:rgba(217,192,138,.10); }
#prog span{ display:block; height:100%; width:0;
  background:linear-gradient(90deg,var(--gold-deep),var(--gold-soft) 55%,var(--ember)); box-shadow:0 0 12px rgba(207,90,59,.5); }

/* ---- top chrome ---- */
#chrome{ position:fixed; top:0; left:0; right:0; z-index:50; display:flex; justify-content:space-between;
  align-items:center; padding:16px 22px; opacity:0; transition:opacity .8s var(--ease);
  pointer-events:none; }
#chrome.show{ opacity:1; }
#chrome .mark{ font-family:var(--serif); font-size:16px; letter-spacing:.36em; text-transform:uppercase;
  color:#e4dcc8; }
#chrome .ep{ font-size:11px; letter-spacing:.3em; color:var(--gold); }

/* ---- record-mode button ---- */
#recBtn{ position:fixed; bottom:18px; right:18px; z-index:55; cursor:pointer;
  font-family:var(--sans); font-size:10.5px; letter-spacing:.22em; text-transform:uppercase; color:#e7dfcb;
  background:rgba(14,13,18,.6); backdrop-filter:blur(8px); border:1px solid rgba(217,192,138,.34);
  padding:11px 16px; border-radius:22px; transition:border-color .25s, background .25s, opacity .5s; }
#recBtn:hover{ border-color:rgba(207,90,59,.7); background:rgba(24,18,16,.7); }
body.record #recBtn, body.record #chrome, body.record .scrollcue{ opacity:0 !important; pointer-events:none; }

/* ============================================================
   LAYOUT PRIMITIVES
   ============================================================ */
main{ position:relative; z-index:2; }
.col{ width:var(--col); margin:0 auto; }
.center{ text-align:center; }
.band{ position:relative; padding:clamp(64px,13vh,140px) 0; }

.label{ font-family:var(--sans); font-size:11px; font-weight:500; letter-spacing:.34em; text-transform:uppercase;
  color:var(--gold); margin:0 0 22px; display:inline-flex; align-items:center; gap:12px; }
.label::before{ content:""; width:26px; height:1px; background:linear-gradient(90deg,var(--gold),transparent); }
/* danger-tinted label for the darker sections */
.label.warn{ color:var(--ember-soft); }
.label.warn::before{ background:linear-gradient(90deg,var(--ember),transparent); }

h2{ font-family:var(--serif); font-weight:500; font-size:clamp(28px,6.4vw,44px); line-height:1.08;
  letter-spacing:.005em; margin:0 0 26px; color:#fbf6ea; }
h3{ font-family:var(--serif); font-weight:500; font-size:clamp(20px,4.6vw,26px); margin:0 0 8px; color:#fbf6ea; }

.body{ font-size:clamp(15px,3.9vw,17.5px); line-height:1.72; color:#d7d1c4; margin:0 0 18px; font-weight:300; }
.body strong{ color:#f3ecdd; font-weight:500; }
.body.center{ max-width:34ch; margin-left:auto; margin-right:auto; }
strong{ font-weight:500; }
em{ font-style:italic; }

/* ============================================================
   COVER
   ============================================================ */
.cover{ position:relative; min-height:100svh; display:flex; flex-direction:column;
  justify-content:flex-end; overflow:hidden; padding-bottom:clamp(60px,12vh,120px); }
.cover-bg{ position:absolute; inset:0; z-index:0;
  background:#040405 url('assets/hero.jpg') center/cover no-repeat; will-change:transform; }
/* heavier, darker scrim + a low ember bloom rising from the base */
.cover-scrim{ position:absolute; inset:0; z-index:1;
  background:
    radial-gradient(90% 60% at 50% 116%, rgba(124,45,30,.34), transparent 60%),
    linear-gradient(180deg, rgba(4,4,5,.72) 0%, rgba(4,4,5,.20) 32%, rgba(4,4,5,.42) 60%, rgba(4,4,5,.97) 100%);
  box-shadow:inset 0 0 220px 50px rgba(0,0,0,.78); }
.cover-inner{ position:relative; z-index:2; }
.eyebrow{ font-size:11px; letter-spacing:.42em; text-transform:uppercase; color:var(--ember-soft); margin:0 0 18px; }
.cover h1{ font-family:var(--serif); font-weight:500; font-size:clamp(50px,15vw,94px); line-height:.94;
  margin:0 0 .28em; color:#fdf9ef; letter-spacing:.005em; text-shadow:0 4px 50px rgba(0,0,0,.7); }
.cover h1 .em{ color:var(--ember-soft); font-style:italic; font-weight:500; }
.lede{ font-family:var(--serif); font-size:clamp(18px,4.8vw,24px); font-style:italic; color:#dcd3bf;
  line-height:1.34; max-width:25ch; margin:0 0 26px; }
.byline{ font-size:11px; letter-spacing:.24em; text-transform:uppercase; color:#8b8574; margin:0; }
.byline b{ color:var(--gold); font-weight:500; }
.scrollcue{ position:absolute; bottom:26px; left:50%; transform:translateX(-50%); z-index:3;
  font-size:9.5px; letter-spacing:.3em; text-transform:uppercase; color:#9c968a;
  display:flex; flex-direction:column; align-items:center; gap:10px; }
.scrollcue span{ width:1px; height:34px; background:linear-gradient(180deg,var(--ember),transparent);
  animation:cue 2.1s var(--ease) infinite; transform-origin:top; }
@keyframes cue{ 0%{ transform:scaleY(0); opacity:0;} 40%{ opacity:1;} 100%{ transform:scaleY(1); opacity:0; } }

/* ============================================================
   ABSTRACT
   ============================================================ */
.abstract{ font-family:var(--serif); font-size:clamp(19px,4.7vw,25px); line-height:1.5; color:#e6dfce;
  font-weight:400; }
.dropcap{ float:left; font-family:var(--serif); font-weight:600; font-size:clamp(64px,15vw,92px);
  line-height:.72; padding:6px 14px 0 0; color:var(--ember-soft); }

/* ============================================================
   THE NUMBER
   ============================================================ */
.stat-hero{ padding:clamp(80px,16vh,180px) 0; }
.bignum{ font-family:var(--serif); font-weight:500; font-size:clamp(96px,26vw,200px); line-height:.9;
  color:var(--ember-soft); letter-spacing:-.01em;
  text-shadow:0 10px 74px rgba(207,90,59,.26); }
.bignum-cap{ font-family:var(--serif); font-size:clamp(18px,4.6vw,24px); font-style:italic; color:#d7d1c4;
  max-width:28ch; margin:14px auto 0; line-height:1.4; }
.bignum-cap strong{ color:var(--gold-soft); font-style:normal; }

/* ============================================================
   THE DATA — chart + stat cards
   ============================================================ */
.chart{ margin:8px 0 46px; padding:30px 26px 18px;
  background:linear-gradient(180deg, rgba(20,15,14,.5), rgba(11,10,14,.32));
  border:1px solid rgba(217,192,138,.16); border-radius:6px; }
.bars{ display:flex; align-items:flex-end; justify-content:center; gap:clamp(30px,10vw,72px);
  height:min(40vh,272px); }
.bar-wrap{ display:flex; flex-direction:column; align-items:center; height:100%; justify-content:flex-end; }
.bar{ width:clamp(62px,20vw,104px); height:0; border-radius:4px 4px 0 0; position:relative;
  background:linear-gradient(180deg, var(--gold-soft), var(--gold-deep));
  box-shadow:0 0 30px rgba(217,192,138,.22);
  transition:height 1.5s var(--ease); }
/* the "hot" bar is the alarming one — ember */
.bar.hot{ background:linear-gradient(180deg, var(--ember-soft), var(--ember-deep));
  box-shadow:0 0 42px rgba(207,90,59,.42); }
.bar-val{ position:absolute; top:-30px; left:0; right:0; text-align:center;
  font-family:var(--serif); font-size:clamp(20px,5vw,28px); font-weight:600; color:var(--gold-soft); }
.bar.hot .bar-val{ color:var(--ember-soft); }
.bar-x{ margin-top:14px; font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:var(--muted);
  text-align:center; max-width:16ch; line-height:1.4; }
.chart-cap{ text-align:center; margin:18px 0 0; font-size:10.5px; letter-spacing:.2em; text-transform:uppercase;
  color:#7d786d; line-height:1.6; }

.stats{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:rgba(217,192,138,.14);
  border:1px solid rgba(217,192,138,.14); border-radius:6px; overflow:hidden; margin-top:8px; }
.stat{ background:var(--ink); padding:26px 22px; display:flex; flex-direction:column; gap:8px;
  transition:background .4s var(--ease); }
.stat:hover{ background:var(--ink-2); }
.stat b{ font-family:var(--serif); font-weight:600; font-size:clamp(32px,8.4vw,50px); color:var(--gold-soft);
  line-height:1; }
.stat span{ font-size:12.5px; line-height:1.5; color:#b7b1a4; font-weight:300; }

/* ============================================================
   WHAT IT MEANS — failure-mode cards
   ============================================================ */
.cards{ display:grid; grid-template-columns:repeat(2,1fr); gap:14px; margin-top:34px; }
.card{ position:relative; padding:30px 24px 28px; border:1px solid rgba(217,192,138,.16); border-radius:6px;
  background:linear-gradient(180deg, rgba(20,15,14,.44), rgba(10,9,12,.24));
  transition:border-color .4s var(--ease), transform .5s var(--ease); }
.card:hover{ border-color:rgba(207,90,59,.4); transform:translateY(-3px); }
.card .rn{ font-family:var(--serif); font-size:13px; letter-spacing:.2em; color:var(--ember-soft); opacity:.85; }
.card h3{ margin:6px 0 10px; }
.card p{ font-size:14px; line-height:1.62; color:#bdb7aa; margin:0; font-weight:300; }

/* ============================================================
   HUMAN STORY
   ============================================================ */
.story{ overflow:hidden; }
.story-bg{ position:absolute; inset:0; z-index:0;
  background:#050404 url('assets/story.jpg') center 28%/cover no-repeat;
  opacity:.42; filter:saturate(.85); }
.story::after{ content:""; position:absolute; inset:0; z-index:1;
  background:linear-gradient(180deg, rgba(4,4,5,.9), rgba(4,4,5,.74) 50%, rgba(4,4,5,.94)); }
.story .col{ position:relative; z-index:2; }
.pull{ font-family:var(--serif); font-style:italic; font-size:clamp(23px,6vw,36px); line-height:1.26;
  color:#fbf6ea; margin:40px 0 0; padding:0 0 0 24px; border-left:2px solid var(--ember);
  text-shadow:0 3px 30px rgba(0,0,0,.6); }
.pull cite{ display:block; font-size:13px; font-style:normal; letter-spacing:.06em; color:var(--ember-soft);
  margin-top:18px; font-family:var(--sans); font-weight:400; }

/* mental-health resource note — quiet, respectful, bordered */
.resource{ margin:34px 0 0; padding:18px 20px; border:1px solid rgba(217,192,138,.2); border-radius:6px;
  background:rgba(10,9,12,.5); font-size:13px; line-height:1.6; color:#c8c2b5; font-weight:300; }
.resource b{ color:var(--gold-soft); font-weight:500; }

/* ============================================================
   TAKEAWAY
   ============================================================ */
.close{ padding:clamp(80px,15vh,170px) 0; }
.closing{ font-family:var(--serif); font-weight:500; font-size:clamp(30px,7.4vw,52px); line-height:1.12;
  color:#fbf6ea; margin:0 0 30px; }
.closing .em{ color:var(--gold-soft); font-style:italic; }

/* ============================================================
   SOURCES + colophon / Rospuek Research sign-off
   ============================================================ */
.sources{ border-top:1px solid rgba(217,192,138,.14); padding-bottom:clamp(90px,16vh,160px); }
.refs{ margin:0 0 40px; padding:0 0 0 22px; }
.refs li{ font-size:13px; line-height:1.66; color:#a49e91; margin-bottom:12px; font-weight:300; }
.refs li em{ color:#c8c2b5; }
.colophon{ font-family:var(--serif); font-size:15px; line-height:1.6; color:#8b8574; font-style:italic; }
.colophon .em{ color:var(--gold); font-style:normal; }
.sign{ display:flex; align-items:center; gap:14px; margin:30px 0 0; }
.sign img{ width:38px; height:38px; border-radius:50%; object-fit:cover; opacity:.9;
  border:1px solid rgba(217,192,138,.3); }
.sign .who{ font-family:var(--serif); font-size:14px; color:#c8c2b5; line-height:1.4; font-style:normal; }
.sign .who b{ color:var(--gold-soft); font-weight:500; letter-spacing:.02em; }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity 1s var(--ease), transform 1.1s var(--ease); }
.reveal.in{ opacity:1; transform:none; }
.reveal.d1{ transition-delay:.12s; } .reveal.d2{ transition-delay:.24s; }
.reveal.d3{ transition-delay:.36s; } .reveal.d4{ transition-delay:.5s; }
.cards .card:nth-child(2){ transition-delay:.1s; }
.cards .card:nth-child(3){ transition-delay:.2s; }
.cards .card:nth-child(4){ transition-delay:.3s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:560px){
  .stats{ grid-template-columns:1fr 1fr; }
  .cards{ grid-template-columns:1fr; }
}
@media (max-width:380px){
  .stats{ grid-template-columns:1fr; }
}

/* honor reduced-motion: keep everything visible, drop the movement */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  .reveal{ opacity:1 !important; transform:none !important; transition:none !important; }
  .bar{ transition:none !important; }
  .scrollcue span{ animation:none; }
}