/* Shared controls. Load after project styles so every page uses the same treatment. */
:root { --sp-control-radius: 10px; --sp-control-duration: 180ms; --sp-control-ease: cubic-bezier(.22,1,.36,1); }
.sp-back-to-top, .sp-copy { box-sizing: border-box; appearance: none; -webkit-appearance: none; font-family: var(--font-sans); cursor: pointer; -webkit-tap-highlight-color: transparent; }
.sp-back-to-top { position: fixed; right: max(24px,env(safe-area-inset-right)); bottom: max(24px,env(safe-area-inset-bottom)); z-index: 900; display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; margin: 0; padding: 0; border: 0; border-radius: 50%; background: var(--apple-blue); color: #fff; box-shadow: 0 4px 16px rgba(0,113,227,.22); opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(8px); transition: opacity var(--sp-control-duration) ease, visibility 0s linear 180ms, transform 240ms var(--sp-control-ease), background var(--sp-control-duration) ease, box-shadow var(--sp-control-duration) ease; }
.sp-back-to-top svg { display: block; width: 22px; height: 22px; }
.sp-back-to-top.is-visible { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0); transition-delay: 0s; }
body:has(.sp-contents.mobile-open) .sp-back-to-top, body.global-menu-open .sp-back-to-top { opacity: 0; visibility: hidden; pointer-events: none; }
.sp-back-to-top:active { transform: scale(.96); }
.sp-citation { margin-top: 32px; min-width: 0; border: 1px solid rgba(0,0,0,.08); border-radius: 16px; background: #fff; color: var(--apple-black); text-align: left; overflow: hidden; }
.sp-citation-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 12px 20px; border-bottom: 1px solid rgba(0,0,0,.06); background: var(--apple-off-white); }
.sp-citation-title { font: 600 14px/1.4 var(--font-sans); letter-spacing: -.022em; }
.sp-copy { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 44px; min-width: 138px; padding: 8px 14px; border: 0; border-radius: var(--sp-control-radius); background: var(--apple-light-gray); color: var(--apple-black); font-size: 13px; font-weight: 500; line-height: 1.4; letter-spacing: -.022em; transition: background var(--sp-control-duration) ease, color var(--sp-control-duration) ease, transform var(--sp-control-duration) ease; }
.sp-copy svg { display: block; width: 16px; height: 16px; }
.sp-copy-check { display: none; }
.sp-copy[data-state="success"] { background: rgba(0,113,227,.08); color: var(--apple-blue); }
.sp-copy[data-state="success"] .sp-copy-icon { display: none; }
.sp-copy[data-state="success"] .sp-copy-check { display: inline-flex; }
.sp-copy:active { transform: scale(.98); }
.sp-copy:disabled { cursor: wait; }
.sp-citation pre { display: block; max-width: 100%; padding: 20px; margin: 0; overflow-x: auto; overscroll-behavior-x: contain; background: #fff; color: var(--apple-black); white-space: pre; font: 400 13px/1.6 'SF Mono',Monaco,'Courier New',monospace; tab-size: 2; }
.sp-citation pre code { padding: 0; background: transparent; color: inherit; font: inherit; white-space: inherit; }
.sp-sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 16px 32px; border: 1px solid transparent; border-radius: 980px; font: 400 17px/1.4 var(--font-sans); letter-spacing: -.022em; text-decoration: none; cursor: pointer; transition: background var(--sp-control-duration) ease, color var(--sp-control-duration) ease, transform 240ms var(--sp-control-ease); }
.btn.btn-primary { background: var(--apple-blue); color: #fff; }
.btn.btn-secondary { background: transparent; border-color: var(--apple-blue); color: var(--apple-blue); }
.btn:active { transform: scale(.98); }
.authors-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 32px; }
.author-tag { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px; padding: 10px 18px; background: var(--apple-light-gray); border-radius: 980px; color: var(--apple-black); font: 500 14px/1.4 var(--font-sans); text-decoration: none; transition: background var(--sp-control-duration) ease,color var(--sp-control-duration) ease; }
.author-tag sup { font-size: 10px; opacity: .6; }
.sp-back-to-top:focus-visible, .sp-copy:focus-visible, .btn:focus-visible, .author-tag:focus-visible { outline: 2px solid var(--apple-blue); outline-offset: 4px; }
.sp-citation pre:focus-visible { outline: 2px solid var(--apple-blue); outline-offset: -3px; }
@media (hover: hover) and (pointer: fine) {
  .sp-back-to-top.is-visible:hover { background: var(--apple-blue-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,113,227,.28); }
  .sp-copy:hover { background: var(--apple-blue); color: #fff; }
  .btn.btn-primary:hover { background: var(--apple-blue-hover); color: #fff; transform: scale(1.02); }
  .btn.btn-secondary:hover { background: var(--apple-blue); color: #fff; }
  a.author-tag:hover { background: var(--apple-blue); color: #fff; }
}
@media (max-width: 768px) {
  .sp-back-to-top { right: max(16px,env(safe-area-inset-right)); bottom: max(16px,env(safe-area-inset-bottom)); }
  .sp-citation-header { padding: 10px 14px; }
  .sp-citation pre { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto !important; }
  .sp-back-to-top, .sp-copy, .btn, .author-tag { transition: none; }
}

/* Shared page ending, generated for every project and the hub. */
.sp-footer { display: block; position: relative; margin: 0; padding: 36px 24px max(36px,env(safe-area-inset-bottom)); border-top: 1px solid rgba(0,0,0,.06); background: var(--apple-off-white); color: var(--apple-black); font: 400 13px/1.5 var(--font-sans); letter-spacing: -.01em; text-align: left; scroll-snap-align: end; scroll-snap-stop: always; }
.sp-footer, .sp-footer * { box-sizing: border-box; }
.sp-footer-inner { width: 100%; max-width: 980px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-right: 56px; }
.sp-footer-identity strong { display: block; color: var(--apple-black); font: 600 14px/1.5 var(--font-sans); }
.sp-footer-identity p { margin: 4px 0 0; padding: 0; color: #6e6e73; font: 400 13px/1.5 var(--font-sans); }
.sp-footer-links { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; }
.sp-footer-links a { display: inline-flex; align-items: center; min-height: 44px; padding: 0; color: var(--apple-black); font: 400 13px/1.5 var(--font-sans); text-decoration: none; white-space: nowrap; transition: color 180ms ease; }
.sp-footer-links a:hover { color: var(--apple-blue); text-decoration: underline; text-underline-offset: 3px; }
.sp-footer-links a:focus-visible { outline: 2px solid var(--apple-blue); outline-offset: 4px; border-radius: 2px; }
@media (max-width: 600px) {
  .sp-footer { padding-top: 28px; padding-bottom: max(28px,env(safe-area-inset-bottom)); }
  .sp-footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
}
@media (prefers-reduced-motion: reduce) { .sp-footer-links a { transition: none; } }