.error-page{padding-top:clamp(12px,2vw,24px);padding-bottom:clamp(32px,5vw,48px)}
.error-hero{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);
  gap:clamp(20px,3vw,36px);
  align-items:center;
  padding:clamp(24px,4vw,48px);
  min-height:clamp(320px,50vh,440px);
  overflow:hidden;
  position:relative;
  background:
    radial-gradient(circle at 100% 0%,rgba(255,77,109,.18),transparent 45%),
    radial-gradient(circle at 0% 100%,rgba(255,169,64,.12),transparent 42%),
    radial-gradient(circle at 50% 50%,rgba(255,77,109,.06),transparent 60%),
    linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:0 24px 64px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.04);
}
.error-hero::before{
  content:"";
  position:absolute;
  top:-50%;
  right:-30%;
  width:80%;
  height:200%;
  background:radial-gradient(closest-side,rgba(255,77,109,.15),transparent 70%);
  pointer-events:none;
  animation:error-glow 8s ease-in-out infinite alternate;
}
@keyframes error-glow{
  0%{opacity:.6;transform:scale(1)}
  100%{opacity:1;transform:scale(1.1)}
}
.error-hero-copy{position:relative;z-index:2;display:grid;gap:0}
.error-code{
  margin:20px 0 0;
  font-family:'Unbounded',Inter,sans-serif;
  font-size:clamp(80px,15vw,140px);
  font-weight:900;
  line-height:.78;
  letter-spacing:-.05em;
  background:linear-gradient(135deg,rgba(255,255,255,.18) 0%,rgba(255,77,109,.45) 50%,rgba(255,169,64,.35) 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  pointer-events:none;
  user-select:none;
  filter:drop-shadow(0 4px 24px rgba(255,77,109,.3));
}
.error-hero h1{margin-top:6px;font-size:clamp(30px,4.4vw,52px);line-height:1.08}
.error-lead{margin-top:18px;max-width:540px;font-size:clamp(16px,1.6vw,19px);line-height:1.7;color:var(--muted)}
.error-path{
  display:inline-block;
  max-width:100%;
  padding:4px 12px;
  border-radius:10px;
  background:rgba(255,77,109,.08);
  border:1px solid rgba(255,77,109,.24);
  font-size:.9em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  word-break:break-all;
  vertical-align:baseline;
  color:#ff9fb2;
  box-shadow:0 2px 12px rgba(255,77,109,.12);
}
.error-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.error-actions .btn-primary{
  min-height:52px;
  padding:0 28px;
  font-size:16px;
  box-shadow:0 14px 40px rgba(255,77,109,.35);
}
.error-actions .btn-ghost{
  min-height:52px;
  padding:0 24px;
  font-size:16px;
}
.error-search-card{
  position:relative;
  z-index:2;
  display:grid;
  gap:10px;
  padding:18px;
  border-radius:20px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04),0 18px 50px rgba(0,0,0,.24);
}
.error-search-kicker{
  margin-bottom:4px;
  font-size:11px;
  font-weight:900;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--muted2);
}
.error-search-card a{
  display:grid;
  gap:3px;
  padding:14px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(0,0,0,.16);
  transition:background var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease);
}
.error-search-card a:hover{
  transform:translateX(3px);
  border-color:var(--accent-ring);
  background:rgba(255,77,109,.10);
}
.error-search-card strong{font-family:'Unbounded',Inter,sans-serif;font-size:14px;text-transform:uppercase}
.error-search-card span{font-size:13px;color:var(--muted);line-height:1.45}
.error-tips{
  margin:24px 0 0;
  padding:14px 18px;
  list-style:none;
  display:grid;
  gap:8px;
  font-size:14px;
  line-height:1.5;
  max-width:540px;
  background:rgba(255,255,255,.02);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
}
.error-tips li{
  display:flex;
  align-items:flex-start;
  gap:10px;
}
.error-tips li::before{
  content:"→";
  color:var(--amber);
  font-weight:700;
  flex-shrink:0;
}
.error-tips a{color:#ff9fb2;text-decoration:underline;text-underline-offset:4px;font-weight:600}
.error-tips a:hover{color:#ffd4dc}
.error-hero-art{
  position:relative;
  min-height:300px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.error-orbit{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  pointer-events:none;
}
.error-orbit-ring{
  width:min(75%,260px);
  aspect-ratio:1;
  border-radius:50%;
  border:2px dashed rgba(255,77,109,.32);
  animation:error-spin 20s linear infinite;
  box-shadow:0 0 40px rgba(255,77,109,.15),inset 0 0 40px rgba(255,77,109,.08);
}
.error-orbit-core{
  position:absolute;
  width:80px;height:80px;
  display:grid;place-items:center;
  border-radius:24px;
  font-family:'Unbounded',Inter,sans-serif;
  font-size:40px;font-weight:900;
  color:#ff8ea0;
  background:linear-gradient(135deg,rgba(255,77,109,.18),rgba(255,169,64,.12));
  border:2px solid rgba(255,77,109,.32);
  box-shadow:0 20px 56px rgba(255,77,109,.25),0 0 0 4px rgba(255,77,109,.08);
  animation:error-float 5s ease-in-out infinite;
}
.error-blocks{
  position:relative;
  width:100%;
  max-width:340px;
  min-height:280px;
  opacity:.95;
}
.error-blocks .block{
  animation-duration:8s;
}
@keyframes error-spin{to{transform:rotate(360deg)}}
@keyframes error-float{
  0%,100%{transform:translateY(0) scale(1)}
  50%{transform:translateY(-12px) scale(1.02)}
}
@media (max-width:900px){
  .error-hero{grid-template-columns:1fr;text-align:left;padding:clamp(20px,3vw,32px);min-height:auto}
  .error-hero-art{min-height:200px;order:-1;margin-bottom:20px}
  .error-blocks{max-width:260px;margin:0 auto}
  .error-actions .btn-primary,.error-actions .btn-ghost{flex:1 1 auto;justify-content:center;min-width:140px}
  .error-tips{padding:12px 16px}
}
@media (max-width:640px){
  .error-page{padding-top:4px;padding-bottom:16px}
  .error-hero{padding:16px;gap:16px;min-height:auto}
  .error-hero-art{display:none}
  .error-hero-copy{text-align:center}
  .error-actions{flex-direction:column;gap:8px;margin-top:20px}
  .error-actions .btn-primary,.error-actions .btn-ghost{width:100%;min-height:44px;font-size:15px}
  .error-code{font-size:clamp(48px,14vw,72px);margin:8px 0 0}
  .error-hero h1{font-size:clamp(20px,5vw,28px);margin-top:2px}
  .error-lead{font-size:13px;margin-top:10px}
  .error-path{font-size:.8em;padding:2px 6px;display:block;margin:8px auto}
}
@media (prefers-reduced-motion:reduce){
  .error-orbit-ring,.error-orbit-core,.error-hero::before{animation:none}
}

.block-page{padding-top:clamp(10px,2vw,24px);padding-bottom:clamp(32px,5vw,56px)}
.block-shell{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(300px,.8fr);
  gap:clamp(20px,3vw,36px);
  align-items:stretch;
  min-height:clamp(360px,54vh,520px);
  padding:clamp(24px,4vw,48px);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(circle at 82% 12%,rgba(255,77,109,.18),transparent 44%),
    radial-gradient(circle at 16% 88%,rgba(255,169,64,.12),transparent 45%),
    linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  box-shadow:0 26px 70px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.05);
}
.block-shell::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(180deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(90deg,transparent,black 20%,black 82%,transparent);
  opacity:.28;
  pointer-events:none;
}
.block-shell-api{
  background:
    radial-gradient(circle at 82% 12%,rgba(255,176,32,.18),transparent 44%),
    radial-gradient(circle at 16% 88%,rgba(255,77,109,.10),transparent 45%),
    linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
}
.block-shell-compact{
  grid-template-columns:minmax(0,760px);
  justify-content:center;
  text-align:center;
  min-height:clamp(300px,45vh,420px);
}
.block-copy,.block-panel{position:relative;z-index:1}
.block-copy{display:flex;flex-direction:column;justify-content:center;min-width:0}
.block-shell-compact .block-copy{align-items:center}
.block-status{
  margin:0 0 14px;
  width:max-content;
  max-width:100%;
  padding:6px 12px;
  border-radius:999px;
  border:1px solid rgba(255,77,109,.26);
  background:rgba(255,77,109,.10);
  color:#ffb7c4;
  font-family:'Unbounded',Inter,sans-serif;
  font-size:12px;
  font-weight:900;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.block-copy h1{max-width:780px;font-size:clamp(30px,4.4vw,58px);line-height:1.08}
.block-lead{max-width:680px;margin:18px 0 0;color:var(--muted);font-size:clamp(15px,1.5vw,18px);line-height:1.7}
.block-path{
  width:max-content;
  max-width:100%;
  margin-top:18px;
  padding:8px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.22);
  color:#ffd2dc;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;
  overflow-wrap:anywhere;
}
.block-steps{
  margin:22px 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:9px;
  max-width:650px;
}
.block-steps li{
  display:grid;
  grid-template-columns:18px minmax(0,1fr);
  gap:10px;
  color:var(--muted);
  font-size:14px;
  line-height:1.55;
}
.block-steps li::before{
  content:"";
  width:8px;
  height:8px;
  margin-top:7px;
  border-radius:50%;
  background:var(--accent-grad);
  box-shadow:0 0 16px rgba(255,77,109,.32);
}
.block-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.block-actions .btn-primary,.block-actions .btn-ghost{min-height:50px;padding:0 24px}
.block-panel{
  align-self:center;
  display:grid;
  gap:14px;
  padding:20px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:rgba(8,4,7,.58);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05),0 18px 56px rgba(0,0,0,.25);
}
.block-panel-head{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--muted2);
  font-size:11px;
  font-weight:900;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.block-panel-dot{
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--success);
  box-shadow:0 0 18px rgba(45,212,164,.45);
}
.block-shell-api .block-panel-dot{background:var(--warn);box-shadow:0 0 18px rgba(255,176,32,.45)}
.block-cards{display:grid;gap:10px}
.block-card{
  display:grid;
  gap:4px;
  min-height:86px;
  padding:15px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
}
.block-card strong{font-family:'Unbounded',Inter,sans-serif;font-size:13px;text-transform:uppercase}
.block-card span{color:var(--muted);font-size:13px;line-height:1.45}
@media (max-width:900px){
  .block-shell{grid-template-columns:1fr;min-height:auto}
  .block-panel{align-self:stretch}
}
@media (max-width:640px){
  .block-page{padding-top:4px;padding-bottom:18px}
  .block-shell{padding:18px;border-radius:var(--radius-xl)}
  .block-copy{text-align:center;align-items:center}
  .block-copy h1{font-size:clamp(24px,8vw,32px)}
  .block-lead{font-size:14px;margin-top:12px}
  .block-path{font-size:12px;margin-top:14px}
  .block-steps{text-align:left;margin-top:18px}
  .block-actions{width:100%;flex-direction:column;margin-top:22px}
  .block-actions .btn-primary,.block-actions .btn-ghost{width:100%;justify-content:center;min-height:44px}
  .block-panel{padding:14px}
  .block-card{min-height:auto}
}