/* ============================================================
   QRIOSITY QUEST — design tokens
   Palette pulled from the channel's own thumbnails/banners:
   deep navy field, gold/ember highlight, ice-blue accent.
   ============================================================ */
:root{
  --navy-950:#05070f;
  --navy-900:#0a0f22;
  --navy-850:#0e1730;
  --navy-800:#12203f;
  --navy-700:#192b52;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);

  --gold:#f2a93c;
  --gold-light:#ffd27a;
  --ember:#ff7a45;
  --ice:#6fc7ff;

  --white:#f4f6fb;
  --muted:#8f9ac0;
  --muted-2:#5f6b90;

  --font-display:'Anton', sans-serif;
  --font-body:'Inter', system-ui, sans-serif;
  --font-mono:'JetBrains Mono', monospace;

  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:8px;

  --wrap:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--navy-950);
  color:var(--white);
  font-family:var(--font-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3{margin:0;}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px;}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}

:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px;}

/* film-grain texture, very subtle, over the whole page */
.grain{
  position:fixed;inset:0;pointer-events:none;z-index:200;opacity:.035;mix-blend-mode:overlay;
  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='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(5,7,15,.72);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{width:40px;height:40px;border-radius:50%;flex-shrink:0;}
.brand-word{display:flex;flex-direction:column;line-height:1;font-family:var(--font-display);letter-spacing:.03em;}
.brand-word-main{font-size:15px;color:var(--white);}
.brand-word-sub{font-size:15px;color:var(--gold);}

.main-nav{display:flex;gap:34px;font-size:14.5px;font-weight:600;}
.main-nav a{color:var(--muted);transition:color .2s ease;position:relative;}
.main-nav a:hover{color:var(--white);}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--gold);
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.main-nav a:hover::after{transform:scaleX(1);}

.header-cta{display:flex;align-items:center;gap:14px;}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:999px;
  font-family:var(--font-body);font-weight:700;font-size:14px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .2s ease, color .2s ease;
  white-space:nowrap;
}
.btn svg{flex-shrink:0;}
.btn-gold{background:linear-gradient(135deg,var(--gold-light),var(--gold));color:#1a1204;box-shadow:0 6px 18px rgba(242,169,60,.28);}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(242,169,60,.4);}
.btn-ghost{background:transparent;color:var(--white);border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-light);transform:translateY(-2px);}
.btn-lg{padding:14px 26px;font-size:15px;}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:38px;height:38px;border-radius:8px;border:1px solid var(--line-strong);
  background:transparent;cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--white);margin:0 auto;transition:transform .2s ease, opacity .2s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;
  padding:120px 0 90px;
  overflow:hidden;
  background:
    radial-gradient(ellipse 90% 60% at 78% 8%, rgba(111,199,255,.14), transparent 60%),
    radial-gradient(ellipse 70% 50% at 15% 95%, rgba(255,122,69,.10), transparent 60%),
    linear-gradient(180deg, var(--navy-950) 0%, var(--navy-900) 100%);
}
#constellation{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.8;}
.hero-glow{
  position:absolute;top:-160px;right:-120px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle, rgba(242,169,60,.20), transparent 70%);
  z-index:0;pointer-events:none;
}
.hero-inner{position:relative;z-index:1;max-width:840px;}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.14em;
  color:var(--gold-light);margin:0 0 22px;padding:7px 14px 7px 10px;
  border:1px solid rgba(242,169,60,.35);border-radius:999px;background:rgba(242,169,60,.06);
}
.eyebrow-dot{width:7px;height:7px;border-radius:50%;background:var(--ember);box-shadow:0 0 0 4px rgba(255,122,69,.18);animation:pulse 2s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.4;}}

.hero-title{
  font-family:var(--font-display);
  font-size:clamp(46px, 8vw, 92px);
  line-height:.98;
  letter-spacing:.01em;
  margin:0 0 26px;
  text-transform:uppercase;
}
.text-gold{color:var(--gold);}

.hero-sub{
  font-size:18px;color:var(--muted);max-width:600px;margin:0 0 38px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:52px;}

.hero-topics{
  display:flex;flex-wrap:wrap;gap:10px 0;
  font-family:var(--font-mono);font-size:12.5px;color:var(--muted-2);
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-topics .sep{margin:0 10px;color:rgba(143,154,192,.35);}

/* ============================================================
   STATS STRIP
   ============================================================ */
.stats-strip{
  background:var(--navy-900);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stats-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:34px 28px;flex-wrap:wrap;gap:24px;
}
.stat{display:flex;flex-direction:column;gap:4px;}
.stat-num{font-family:var(--font-display);font-size:30px;color:var(--gold-light);letter-spacing:.02em;}
.stat-label{font-size:12.5px;color:var(--muted);font-family:var(--font-mono);letter-spacing:.03em;}
.stat-div{width:1px;height:36px;background:var(--line-strong);}

/* ============================================================
   GENERIC SECTION
   ============================================================ */
.section{padding:100px 0;}
.section-alt{background:var(--navy-900);}
.section-eyebrow{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.16em;color:var(--ice);
  margin:0 0 14px;
}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(30px, 4.2vw, 46px);
  text-transform:uppercase;letter-spacing:.01em;
  margin:0 0 18px;max-width:720px;
}
.section-sub{color:var(--muted);font-size:16.5px;max-width:560px;margin:0 0 54px;}

/* ============================================================
   VIDEO GRID
   ============================================================ */
.video-grid{
  display:grid;grid-template-columns:repeat(3, 1fr);gap:26px;
}
.video-card{
  background:var(--navy-850);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.video-card:hover{transform:translateY(-6px);border-color:rgba(242,169,60,.35);box-shadow:0 18px 40px rgba(0,0,0,.35);}
.video-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--navy-800);}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.video-card:hover .video-thumb img{transform:scale(1.06);}
.play-btn{
  position:absolute;inset:0;margin:auto;width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(5,7,15,.55);border:1px solid rgba(255,255,255,.35);color:var(--white);
  backdrop-filter:blur(4px);
  opacity:0;transition:opacity .25s ease, transform .25s ease;
}
.video-card:hover .play-btn{opacity:1;transform:scale(1.05);}
.video-badge{
  position:absolute;top:14px;left:14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;
  padding:5px 11px;border-radius:999px;
  background:rgba(5,7,15,.65);border:1px solid rgba(255,255,255,.2);color:var(--gold-light);
}
.video-body{padding:22px 22px 24px;}
.video-body h3{font-family:var(--font-body);font-size:19px;font-weight:800;margin-bottom:10px;letter-spacing:-.01em;}
.video-body h3 a:hover{color:var(--gold-light);}
.video-body p{color:var(--muted);font-size:14.5px;margin:0 0 16px;}
.video-link{font-size:13.5px;font-weight:700;color:var(--ice);}
.video-link:hover{color:var(--gold-light);}

.video-card-next{
  display:flex;align-items:center;justify-content:center;text-align:center;
  border-style:dashed;border-color:var(--line-strong);background:transparent;
}
.next-inner{padding:36px 26px;}
.next-icon{
  display:inline-flex;width:52px;height:52px;border-radius:50%;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--gold);margin-bottom:18px;
}
.video-card-next h3{font-size:18px;font-weight:800;margin-bottom:10px;}
.video-card-next p{color:var(--muted);font-size:14px;margin:0 0 22px;}

/* ============================================================
   TOPICS
   ============================================================ */
.topics-grid{
  display:grid;grid-template-columns:repeat(4, 1fr);gap:18px;
}
.topic-card{
  padding:26px 22px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:linear-gradient(180deg, rgba(255,255,255,.02), transparent);
  transition:border-color .2s ease, transform .2s ease, background .2s ease;
}
.topic-card:hover{border-color:rgba(111,199,255,.35);transform:translateY(-4px);background:rgba(111,199,255,.04);}
.topic-icon{
  display:inline-flex;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;
  color:var(--ice);background:rgba(111,199,255,.08);border:1px solid rgba(111,199,255,.2);margin-bottom:18px;
}
.topic-card h3{font-size:16px;font-weight:800;margin-bottom:8px;}
.topic-card p{font-size:13.5px;color:var(--muted);margin:0;}

/* ============================================================
   ABOUT
   ============================================================ */
.about-inner{
  display:grid;grid-template-columns:1.3fr .7fr;gap:70px;align-items:center;
}
.about-copy p{color:var(--muted);font-size:16px;margin:0 0 18px;}
.about-copy em{color:var(--gold-light);font-style:normal;}
.about-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.about-badges span{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.03em;color:var(--muted);
  padding:8px 14px;border:1px solid var(--line-strong);border-radius:999px;
}
.about-visual{position:relative;display:flex;align-items:center;justify-content:center;}
.about-emblem{
  width:200px;height:200px;border-radius:50%;position:relative;z-index:2;
  box-shadow:0 0 0 1px var(--line-strong), 0 30px 60px rgba(0,0,0,.4);
}
.about-ring{
  position:absolute;width:280px;height:280px;border-radius:50%;
  border:1px dashed rgba(242,169,60,.35);
  animation:spin 40s linear infinite;
}
.about-ring::before,.about-ring::after{
  content:"";position:absolute;width:8px;height:8px;border-radius:50%;background:var(--gold);
  box-shadow:0 0 12px rgba(242,169,60,.7);
}
.about-ring::before{top:-4px;left:50%;transform:translateX(-50%);}
.about-ring::after{bottom:-4px;left:50%;transform:translateX(-50%);background:var(--ice);box-shadow:0 0 12px rgba(111,199,255,.7);}
@keyframes spin{to{transform:rotate(360deg);}}

/* ============================================================
   FOLLOW / SOCIAL
   ============================================================ */
.social-grid{
  display:grid;grid-template-columns:repeat(3, 1fr);gap:16px;
}
.social-card{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius-md);
  transition:border-color .2s ease, transform .2s ease, background .2s ease;
}
.social-card:hover{border-color:rgba(242,169,60,.4);transform:translateY(-3px);background:rgba(242,169,60,.05);}
.social-icon{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--navy-800);color:var(--gold-light);border:1px solid var(--line-strong);
}
.social-name{font-weight:800;font-size:14.5px;display:block;}
.social-handle{font-family:var(--font-mono);font-size:12px;color:var(--muted);display:block;margin-top:2px;}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{border-top:1px solid var(--line);background:var(--navy-950);padding:44px 0;}
.footer-inner{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:24px;
}
.brand-footer .brand-mark{width:34px;height:34px;}
.footer-nav{display:flex;gap:26px;flex-wrap:wrap;font-size:13.5px;font-weight:600;color:var(--muted);}
.footer-nav a:hover{color:var(--gold-light);}
.footer-copy{font-family:var(--font-mono);font-size:12px;color:var(--muted-2);margin:0;}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:980px){
  .video-grid{grid-template-columns:repeat(2,1fr);}
  .video-card-next{grid-column:span 2;}
  .topics-grid{grid-template-columns:repeat(2,1fr);}
  .about-inner{grid-template-columns:1fr;gap:50px;text-align:left;}
  .about-visual{order:-1;}
  .social-grid{grid-template-columns:repeat(2,1fr);}
}

@media (max-width:760px){
  .main-nav{
    position:fixed;top:76px;left:0;right:0;
    background:rgba(5,7,15,.97);backdrop-filter:blur(14px);
    flex-direction:column;gap:0;padding:8px 28px 20px;
    border-bottom:1px solid var(--line);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:transform .22s ease, opacity .22s ease;
  }
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .main-nav a{padding:14px 0;border-bottom:1px solid var(--line);}
  .nav-toggle{display:flex;}
  .header-cta .btn-gold{display:none;}
  .hero{padding:80px 0 60px;}
  .video-grid{grid-template-columns:1fr;}
  .video-card-next{grid-column:span 1;}
  .topics-grid{grid-template-columns:1fr 1fr;}
  .social-grid{grid-template-columns:1fr;}
  .stats-inner{justify-content:flex-start;}
  .stat-div{display:none;}
  .footer-inner{flex-direction:column;align-items:flex-start;}
}

@media (max-width:480px){
  .topics-grid{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{justify-content:center;}
}