/* ============================================================
   LIGHTS OUT — golightsout.agency
   Reference implementation of the brand system.
   Tokens mirror brand-guidelines/lights-out-brand-guidelines.html
   ============================================================ */
:root{
  color-scheme:dark;
  /* Core palette */
  --blackout:   #0C0B12;
  --panel:      #16151F;
  --panel-2:    #1D1C29;
  --line:       #2B2A3A;
  --violet:     #8B7CFF;
  --violet-deep:#5A4BD4;
  --signal:     #3BE081;
  --signal-dim: #1E5C3B;
  --smoke:      #9C99B0;
  --moon:       #F4F3FA;

  /* Type */
  --display:'Big Shoulders Display', sans-serif;
  --body:'Inter', sans-serif;
  --mono:'IBM Plex Mono', monospace;

  --wrap:1140px;
  --pad:32px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--blackout);
  color:var(--moon);
  font-family:var(--body);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  -webkit-tap-highlight-color:rgba(139,124,255,.25);
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.btn,.switch,a{touch-action:manipulation}
/* Sticky-header offset for in-page anchor jumps */
section[id]{scroll-margin-top:84px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad);width:100%}

/* Accessibility */
.skip-link{
  position:absolute;left:-9999px;top:12px;z-index:200;
  background:var(--signal);color:#07130C;font-weight:600;
  padding:10px 18px;border-radius:8px;font-family:var(--body);
}
.skip-link:focus{left:16px}
a:focus-visible,button:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:4px}

/* ---------- color zones ---------- */
.zone-blackout{background:var(--blackout)}
.zone-panel{background:var(--panel)}
.zone-panel2{background:var(--panel-2)}
.zone-accent{background:linear-gradient(135deg,var(--violet-deep),var(--violet));color:var(--moon)}

section{position:relative}
main > section{padding:clamp(80px,12vh,140px) 0}

/* ---------- shared type ---------- */
.eyebrow{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--violet);
  display:flex;align-items:center;gap:12px;margin-bottom:22px;
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--violet)}
.eyebrow-on-accent{color:var(--blackout)}
.eyebrow-on-accent::before{background:var(--blackout)}

.section-h2,.book-h,.wordmark,.stories-line,.phase-h{text-wrap:balance}
.section-h2{
  font-family:var(--display);font-weight:800;
  font-size:clamp(40px,6vw,72px);line-height:.95;
  letter-spacing:.01em;text-transform:uppercase;margin-bottom:22px;
}
.lede{color:var(--smoke);max-width:56ch;font-size:clamp(16px,2vw,18.5px);text-wrap:pretty}
.lede b,.lede strong{color:var(--moon);font-weight:600}
.lede-on-accent{color:rgba(244,243,250,.86)}
.lede-on-accent b{color:#fff}

/* ============================================================
   BUTTONS  (Signal Green fill = actions ONLY)
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--body);font-weight:600;font-size:15px;
  border-radius:10px;padding:15px 28px;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--signal);color:#07130C}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(59,224,129,.35)}
.btn-secondary{background:transparent;color:var(--moon);border-color:var(--line)}
.btn-secondary:hover{border-color:var(--violet);color:var(--violet)}
.btn-ghost{background:transparent;color:var(--smoke);padding-left:4px}
.btn-ghost:hover{color:var(--moon)}
.btn-sm{padding:10px 18px;font-size:13.5px}
.btn-lg{padding:19px 36px;font-size:16.5px}

/* ============================================================
   STICKY HEADER
   ============================================================ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:16px 0;transition:background .3s ease,border-color .3s ease,padding .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(12,11,18,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);padding:11px 0;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brandmark{
  font-family:var(--display);font-weight:900;font-size:24px;
  text-transform:uppercase;letter-spacing:.01em;color:var(--moon);line-height:1;
}
.brandmark .o{color:var(--signal)}         /* small mark: green, no glow (brand: drop glow < 120px) */
.header-nav{display:flex;align-items:center;gap:22px}
.header-nav > a:not(.btn){
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--smoke);transition:color .18s;
}
.header-nav > a:not(.btn):hover{color:var(--moon)}

/* ============================================================
   01 HERO
   ============================================================ */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;overflow:hidden}
.hero-inner{position:relative;z-index:2;padding-top:80px}
.hero-glow{
  position:absolute;top:-25%;right:-12%;width:min(760px,90vw);aspect-ratio:1;
  border-radius:50%;pointer-events:none;z-index:1;
  background:radial-gradient(circle,rgba(139,124,255,.20) 0%,rgba(139,124,255,.06) 40%,transparent 68%);
}
.hero-grain{
  position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.ver{
  font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--smoke);margin-bottom:34px;display:flex;gap:14px 26px;flex-wrap:wrap;
}
.wordmark{
  font-family:var(--display);font-weight:900;
  font-size:clamp(72px,14vw,176px);line-height:.86;
  text-transform:uppercase;letter-spacing:.005em;
}
.wordmark .power{
  color:var(--signal);position:relative;
  text-shadow:0 0 34px rgba(59,224,129,.55);   /* the ONLY glow, besides active switch */
}
.hero-sub{margin-top:34px;max-width:34ch;color:var(--smoke);font-size:clamp(17px,2.2vw,20px)}
.hero-sub b{color:var(--moon);font-weight:600}
.hero-tag{margin-top:22px;font-family:var(--mono);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--signal)}
.hero-cta{margin-top:40px;display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.scroll-hint{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--smoke);
}
.scroll-hint span{display:block;animation:bob 1.8s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0);opacity:.5}50%{transform:translateY(6px);opacity:1}}

/* ============================================================
   02 WHY
   ============================================================ */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;margin-top:56px}
.why-k{
  display:block;font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--violet);margin-bottom:16px;
}
.why-col p{color:var(--smoke);font-size:clamp(16px,1.9vw,19px);line-height:1.6}
.why-col p b{color:var(--moon);font-weight:600}

/* ============================================================
   03 MARQUEE
   ============================================================ */
.marquee-band{padding:38px 0;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.marquee-track{display:flex;white-space:nowrap;will-change:transform}
.marquee-track span{
  font-family:var(--display);font-weight:800;font-size:12vw;line-height:1;
  text-transform:uppercase;letter-spacing:.01em;color:transparent;
  -webkit-text-stroke:1.5px var(--line);
  padding-right:.15em;
}
.marquee-track span:nth-child(2){-webkit-text-stroke-color:var(--violet-deep)}

/* ============================================================
   04 PHASES (pinned)
   ============================================================ */
.phases{padding:0 !important}
.phases-inner{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:120px 0}
.phases-head{margin-bottom:56px;max-width:30ch}
.phases-head .section-h2{font-size:clamp(34px,4.8vw,58px)}
.phase-list{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:34px}
.phase-item{border-top:1px solid var(--line);padding-top:26px}
.phase-n{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--violet)}
.phase-h{
  font-family:var(--display);font-weight:800;font-size:clamp(30px,3.6vw,46px);
  text-transform:uppercase;line-height:1;margin:14px 0 16px;
}
.phase-item p{color:var(--smoke);font-size:15.5px;line-height:1.6}

/* ============================================================
   05 STATS
   ============================================================ */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:34px;margin-top:48px}
.stat-num{
  font-family:var(--display);font-weight:800;line-height:.9;
  font-size:clamp(64px,7vw,104px);color:var(--moon);
  display:flex;align-items:baseline;gap:.08em;
  font-variant-numeric:tabular-nums;
}
.stat-suffix{font-family:var(--mono);font-weight:500;font-size:clamp(15px,1.6vw,20px);color:var(--violet);letter-spacing:.04em}
.stat-label{margin-top:14px;font-size:14px;color:var(--smoke);line-height:1.5;max-width:22ch}
.stats-foot{margin-top:48px;font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;color:var(--smoke)}

/* ============================================================
   06 STORIES (accent zone, right-aligned)
   ============================================================ */
.stories{overflow:hidden}
.stories-inner{display:flex;justify-content:flex-end}
.stories-copy{max-width:640px;text-align:right}
.stories-copy .eyebrow{justify-content:flex-end}
.stories-copy .lede{margin-left:auto}
.stories-line{
  margin-top:28px;font-family:var(--display);font-weight:700;
  font-size:clamp(20px,2.4vw,28px);text-transform:uppercase;line-height:1.1;
  letter-spacing:.01em;color:var(--moon);max-width:20ch;margin-left:auto;
}

/* ============================================================
   07 SWITCH
   ============================================================ */
.switch-inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.switch-panel{
  background:var(--panel-2);border:1px solid var(--line);border-radius:16px;
  padding:40px;display:flex;flex-direction:column;align-items:flex-start;gap:26px;
}
.switch-state{min-height:1.5em}
.switch-label{font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--smoke);transition:color .25s}
.switch-panel.on .switch-label{color:var(--signal)}
.switch{
  width:88px;height:46px;border-radius:999px;background:var(--panel);
  border:1px solid var(--line);position:relative;cursor:pointer;
  transition:background .25s,border-color .25s;flex:0 0 auto;padding:0;
}
.switch-knob{
  position:absolute;top:4px;left:4px;width:36px;height:36px;border-radius:50%;
  background:var(--smoke);transition:transform .25s cubic-bezier(.6,.2,.2,1),background .25s,box-shadow .25s;
}
.switch.on{background:var(--signal-dim);border-color:var(--signal)}
.switch.on .switch-knob{transform:translateX(42px);background:var(--signal);box-shadow:0 0 18px rgba(59,224,129,.7)}  /* glow allowed: active switch */
.switch-caption{color:var(--smoke);font-size:15px;line-height:1.55;transition:color .25s}
.switch-panel.on .switch-caption{color:var(--moon)}

/* ============================================================
   08 BOOK THE AUDIT
   ============================================================ */
.book{overflow:hidden;text-align:center}
.book-inner{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center}
.book .eyebrow{justify-content:center}
.book-glow{
  position:absolute;bottom:-40%;left:50%;transform:translateX(-50%);
  width:min(900px,120vw);aspect-ratio:1;border-radius:50%;pointer-events:none;z-index:1;
  background:radial-gradient(circle,rgba(59,224,129,.10) 0%,transparent 62%);
}
.book-h{
  font-family:var(--display);font-weight:800;font-size:clamp(40px,6.4vw,80px);
  line-height:.96;text-transform:uppercase;letter-spacing:.01em;margin-bottom:24px;
}
.book-lede{margin:0 auto;text-align:center}
.book-cta{margin-top:40px}
.book-proof{margin-top:26px;font-family:var(--mono);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--signal)}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{padding:52px 0;border-top:1px solid var(--line)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.footer-mark{font-size:20px}
.footer-sig,.footer-tag{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--smoke)}
.footer-tag{color:var(--signal)}

/* ============================================================
   REVEAL / MOTION
   Base state hidden ONLY when JS enables animation, so no-JS
   and reduced-motion users always see content.
   ============================================================ */
.anim-ready [data-reveal]{opacity:0}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none !important;transition:none !important}
  .anim-ready [data-reveal]{opacity:1 !important}
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:900px){
  .why-grid{grid-template-columns:1fr;gap:36px}
  .phase-list{grid-template-columns:1fr;gap:0}
  .phase-item{padding:24px 0}
  .stats-row{grid-template-columns:1fr 1fr;gap:40px 28px}
  .switch-inner{grid-template-columns:1fr;gap:36px}
  .stories-inner{justify-content:flex-start}
  .stories-copy{text-align:left}
  .stories-copy .eyebrow{justify-content:flex-start}
  .stories-copy .lede,.stories-line{margin-left:0}
}
@media(max-width:560px){
  :root{--pad:22px}
  .header-nav > a:not(.btn){display:none}
  .stats-row{grid-template-columns:1fr;gap:36px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{justify-content:center}
  .footer-inner{flex-direction:column;align-items:flex-start;gap:12px}
}