:root{
  --ink:#070a13;
  --night:#0a1020;
  --blue:#101b38;
  --gold:#e8c47a;
  --gold-soft:#ffe4aa;
  --paper:#f7eed8;
  --muted:#c8c4bb;
  --line:rgba(232,196,122,.28);
}

*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--ink)}
body{
  min-height:100svh;
  color:var(--paper);
  font-family:Georgia,"Times New Roman",serif;
  overflow-x:hidden;
}
a{color:inherit}

.page-shell{
  position:relative;
  min-height:100svh;
  isolation:isolate;
  overflow:hidden;
  background:
    radial-gradient(circle at 72% 15%,rgba(73,94,160,.20),transparent 29%),
    radial-gradient(circle at 22% 68%,rgba(174,108,41,.12),transparent 32%),
    linear-gradient(135deg,#05070d 0%,#080d19 45%,#070a13 100%);
}

.cinematic-bg{
  position:absolute;inset:-4%;z-index:-7;
  background-image:
    linear-gradient(90deg,rgba(4,6,11,.48),rgba(4,7,14,.74)),
    url("../images/magical-404-background.png");
  background-size:cover;
  background-position:center;
  filter:saturate(.78) brightness(.52) contrast(1.08) blur(1.5px);
  transform:scale(1.04);
}

.vignette{
  position:absolute;inset:0;z-index:-5;pointer-events:none;
  background:
    radial-gradient(circle at center,transparent 25%,rgba(2,3,7,.24) 62%,rgba(0,0,0,.76) 100%),
    linear-gradient(to bottom,rgba(1,3,9,.55),transparent 20%,transparent 72%,rgba(0,0,0,.65));
}

.topbar{
  width:min(1180px,calc(100% - 40px));
  margin:0 auto;
  min-height:88px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  border-bottom:1px solid var(--line);
  position:relative;z-index:4;
}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none;letter-spacing:.06em}
.brand-mark{font-size:28px;color:var(--gold);filter:drop-shadow(0 0 10px rgba(232,196,122,.6));animation:pulse 3s ease-in-out infinite}
.brand-copy{display:flex;flex-direction:column;line-height:1}
.brand-copy strong{font-size:15px;font-weight:600;color:#f7deb0}
.brand-copy small{margin-top:7px;font-size:8px;letter-spacing:.28em;color:#b9aa8c}
.status{font-family:system-ui,sans-serif;font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:#bbb7ad;display:flex;align-items:center;gap:9px}
.status span{width:7px;height:7px;border-radius:50%;background:#dba45c;box-shadow:0 0 12px #e8c47a}

.hero{
  width:min(1180px,calc(100% - 40px));
  min-height:calc(100svh - 152px);
  margin:0 auto;
  padding:52px 0 58px;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);
  align-items:center;
  gap:clamp(40px,7vw,92px);
  position:relative;z-index:3;
}

.portal-stage{position:relative;min-height:600px;display:grid;place-items:center;perspective:1200px}
.portal-halo{
  position:absolute;width:76%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(255,220,150,.28) 0%,rgba(186,111,44,.12) 38%,transparent 70%);
  filter:blur(28px);animation:halo 5s ease-in-out infinite;
}
.portal-frame{
  width:min(92%,530px);aspect-ratio:.78;
  position:relative;border-radius:47% 47% 14% 14% / 29% 29% 9% 9%;
  padding:7px;
  background:linear-gradient(135deg,#d7b36a 0%,#6d4b24 28%,#f0d392 51%,#4b321b 77%,#c49b54 100%);
  box-shadow:0 0 0 1px rgba(255,225,166,.28),0 25px 70px rgba(0,0,0,.58),0 0 54px rgba(211,157,79,.14);
  transform:rotateY(2deg);
}
.portal-frame:before{
  content:"";position:absolute;inset:-15px;border:1px solid rgba(218,184,117,.22);
  border-radius:48% 48% 15% 15% / 30% 30% 10% 10%;pointer-events:none;
}
.portal-image{
  position:absolute;inset:7px;border-radius:inherit;overflow:hidden;
  background-image:
    linear-gradient(to top,rgba(5,7,13,.72),transparent 44%),
    url("../images/magical-404-background.png");
  background-size:auto 100%;
  background-position:24% center;
  filter:saturate(.9) contrast(1.05);
}
.portal-image:after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 70px rgba(0,0,0,.64)}
.portal-shimmer{
  position:absolute;inset:8px;border-radius:inherit;overflow:hidden;pointer-events:none;
  background:linear-gradient(110deg,transparent 28%,rgba(255,240,197,.13) 45%,rgba(255,225,157,.38) 49%,rgba(255,255,255,.08) 53%,transparent 70%);
  transform:translateX(-120%);animation:shimmer 8s ease-in-out infinite 1s;
}
.rune{position:absolute;color:#f3d68f;text-shadow:0 0 14px #d99c48;font-size:20px;animation:float 4.5s ease-in-out infinite}
.r1{left:-17px;top:29%}.r2{right:-19px;top:47%;animation-delay:-1.2s}.r3{left:17%;bottom:-17px;animation-delay:-2.2s}

.floating-page{
  position:absolute;width:58px;height:77px;background:linear-gradient(145deg,#d8c298,#a98457);color:#453019;
  border-radius:3px;box-shadow:0 10px 25px rgba(0,0,0,.35);display:grid;place-items:center;font-size:18px;font-weight:bold;opacity:.82;
}
.page-1{left:3%;top:22%;transform:rotate(-13deg);animation:pageFloat 6s ease-in-out infinite}
.page-2{right:0;top:30%;transform:rotate(12deg);animation:pageFloat 7s ease-in-out infinite -2s}
.page-3{right:8%;bottom:18%;transform:rotate(-6deg);animation:pageFloat 5.5s ease-in-out infinite -3s}

.error-copy{position:relative;padding-right:6px}
.eyebrow{display:flex;align-items:center;gap:14px;margin:0 0 12px;color:#c7aa74;font-family:system-ui,sans-serif;font-size:10px;font-weight:700;letter-spacing:.38em}
.eyebrow span{height:1px;width:42px;background:linear-gradient(90deg,transparent,var(--gold))}
.eyebrow span:last-child{background:linear-gradient(90deg,var(--gold),transparent)}
h1{margin:0;font-weight:400}
.number{
  display:block;font-size:clamp(116px,13vw,190px);line-height:.86;letter-spacing:-.075em;
  color:#f8d995;
  text-shadow:0 0 5px #fff2c9,0 0 25px rgba(246,190,95,.4),0 12px 30px rgba(0,0,0,.45);
}
.zero{display:inline-grid;place-items:center;position:relative;color:transparent;width:.74em}
.zero:before{content:"";position:absolute;width:.58em;height:.58em;border:2px solid #f6d38d;border-radius:50%;box-shadow:inset 0 0 20px rgba(247,211,141,.28),0 0 23px rgba(247,211,141,.22)}
.zero:after{content:"✦";position:absolute;color:#ffdfa0;font-size:.23em;text-shadow:0 0 14px #ffc875;animation:rotateStar 10s linear infinite}
.headline{display:block;margin-top:25px;font-size:clamp(32px,4vw,55px);line-height:1.07;letter-spacing:-.035em;color:#fff4dc;text-wrap:balance}
.description{max-width:600px;margin:22px 0 31px;color:#d0ccc2;font-size:clamp(15px,1.35vw,18px);line-height:1.78;text-shadow:0 2px 10px #000}

.home-button{
  position:relative;width:min(100%,360px);height:62px;display:flex;align-items:center;justify-content:center;gap:13px;
  text-decoration:none;text-transform:uppercase;letter-spacing:.14em;font-family:system-ui,sans-serif;font-size:12px;font-weight:800;
  color:#22170a;background:linear-gradient(180deg,#f8dc9d,#d8ad61);border:1px solid #ffe8ba;border-radius:4px;
  box-shadow:0 12px 34px rgba(0,0,0,.35),0 0 0 4px rgba(111,75,31,.3),inset 0 1px rgba(255,255,255,.7);
  overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
}
.home-button:before,.home-button:after{content:"";position:absolute;top:50%;width:10px;height:10px;border:1px solid #714f21;transform:translateY(-50%) rotate(45deg)}
.home-button:before{left:16px}.home-button:after{right:16px}
.home-button:hover{transform:translateY(-3px);filter:brightness(1.06);box-shadow:0 16px 40px rgba(0,0,0,.42),0 0 32px rgba(235,191,112,.25),0 0 0 4px rgba(111,75,31,.3)}
.home-button:focus-visible{outline:3px solid #fff1c7;outline-offset:5px}
.button-icon{font-size:18px}.button-star{font-size:12px}
.button-glow{position:absolute;inset:-60% -20%;background:linear-gradient(115deg,transparent 37%,rgba(255,255,255,.7) 49%,transparent 60%);transform:translateX(-100%);transition:transform .7s ease}
.home-button:hover .button-glow{transform:translateX(100%)}
.hint{display:flex;align-items:center;gap:10px;margin-top:25px;color:#9f9b94;font-family:system-ui,sans-serif;font-size:11px;letter-spacing:.04em}
.wand{width:38px;height:1px;background:linear-gradient(90deg,#6a4829,#e3bd76);transform:rotate(-8deg);box-shadow:24px -3px 9px #e8c47a}

footer{
  width:min(1180px,calc(100% - 40px));margin:0 auto;min-height:64px;display:flex;align-items:center;justify-content:center;gap:16px;
  border-top:1px solid var(--line);position:relative;z-index:3;color:#938d82;font-family:system-ui,sans-serif;font-size:9px;letter-spacing:.22em;text-transform:uppercase;text-align:center;
}
.footer-divider{color:var(--gold)}

.stars,.sparks{position:absolute;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.star{position:absolute;width:2px;height:2px;border-radius:50%;background:#fff2c7;box-shadow:0 0 8px #f6cf84;animation:twinkle var(--dur) ease-in-out infinite;opacity:var(--opacity)}
.spark{position:absolute;width:4px;height:4px;border-radius:50%;background:#ffdb8b;box-shadow:0 0 12px #ffc45e;animation:sparkRise var(--dur) linear forwards}
.cursor-light{position:fixed;z-index:99;width:240px;height:240px;border-radius:50%;pointer-events:none;opacity:0;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(255,220,151,.12),rgba(255,199,103,.04) 34%,transparent 68%);mix-blend-mode:screen;transition:opacity .25s ease}

.mist{position:absolute;z-index:-2;pointer-events:none;width:70vw;height:26vh;filter:blur(30px);opacity:.13;background:radial-gradient(ellipse,rgba(197,205,227,.5),transparent 65%);animation:mistMove 18s ease-in-out infinite alternate}
.mist-a{left:-12vw;bottom:4vh}.mist-b{right:-15vw;top:24vh;animation-delay:-8s}

@keyframes pulse{50%{filter:drop-shadow(0 0 20px rgba(232,196,122,.95));transform:scale(1.08)}}
@keyframes halo{50%{transform:scale(1.08);opacity:.72}}
@keyframes shimmer{0%,70%{transform:translateX(-120%)}100%{transform:translateX(120%)}}
@keyframes float{50%{transform:translateY(-10px) rotate(8deg);opacity:.7}}
@keyframes pageFloat{50%{translate:0 -18px;rotate:5deg}}
@keyframes rotateStar{to{transform:rotate(360deg)}}
@keyframes twinkle{0%,100%{transform:scale(.7);opacity:.15}50%{transform:scale(1.8);opacity:1}}
@keyframes sparkRise{0%{opacity:0;transform:translate3d(0,0,0) scale(.6)}20%{opacity:1}100%{opacity:0;transform:translate3d(var(--drift),-95px,0) scale(0)}}
@keyframes mistMove{to{transform:translate3d(12vw,-2vh,0) scale(1.1)}}

@media (max-width:900px){
  .topbar{min-height:74px}.status{display:none}
  .hero{grid-template-columns:1fr;gap:18px;padding:28px 0 44px;text-align:center}
  .portal-stage{min-height:390px;order:2}.portal-frame{width:min(75vw,390px)}
  .error-copy{order:1}.description{margin-left:auto;margin-right:auto}.home-button{margin-inline:auto}.hint{justify-content:center}
  .eyebrow{justify-content:center}.number{font-size:clamp(100px,28vw,160px)}
}

@media (max-width:560px){
  .topbar,.hero,footer{width:min(100% - 28px,1180px)}
  .brand-copy small{display:none}.brand-copy strong{font-size:13px}.brand-mark{font-size:24px}
  .hero{padding-top:25px}.headline{font-size:34px}.description{font-size:14px;line-height:1.65}
  .home-button{height:58px;font-size:11px}.portal-stage{min-height:330px}.portal-frame{width:min(82vw,340px)}
  .floating-page{width:42px;height:58px;font-size:14px}.page-1{left:0}.page-2{right:0}
  footer{padding:18px 0;flex-wrap:wrap;line-height:1.6}.footer-divider{display:none}
}

@media (prefers-reduced-motion:reduce){
  *,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}
  .cursor-light{display:none}
}