/* Sign-in boarding pass (F-017, F-039, F-052). Loaded after tokens.css and base.css via layout.styles(). rem only (1rem = 16 artboard px).
   Desktop: the animated sky beside the pass. Phones (<= 720): the sky is a short banner above the pass. */
.si-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 35rem; height: calc(100vh - 5.25rem); min-height: 36rem; background: var(--paper); }

/* ---- the sky (decorative, aria-hidden) ---- */
.si-sky { position: relative; overflow: hidden; container-type: size; background: var(--accent-tint); color: var(--ink); }
.si-band { position: absolute; inset: auto 0 0 0; }
.si-band1 { height: 40%; background: var(--peach); }
.si-band2 { height: 18%; background: var(--block-pacific); }
.si-band3 { height: 6%; background: var(--sand); }
.si-stage { position: absolute; left: 0; bottom: 0; }
.si-stage-d { width: min(100cqw, 97.8cqh); aspect-ratio: 880 / 900; }
.si-stage-m { display: none; }
.si-svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.si-sun, .si-cloud, .si-code, .si-stick, .si-hand { position: absolute; }
.si-sun { aspect-ratio: 1; border-radius: var(--r-pill); background: var(--sun); animation: si-sun 5s ease-in-out infinite; }
.si-cloud { border-radius: var(--r-pill); background: var(--card); opacity: .9; animation: si-drift 9s ease-in-out infinite alternate; }
.si-cloud2 { opacity: .8; }
.si-code { font-family: var(--font-display); font-weight: 800; font-size: 1.25rem; }
.si-stick { display: flex; align-items: center; min-height: 3.25rem; max-width: 40%; padding: 0 1.375rem; border: 0.1875rem solid var(--card); border-radius: var(--r-pill); font-weight: 800; font-size: 1.125rem; line-height: 1.1; box-shadow: var(--shadow-sticker); animation: si-bob 4.5s ease-in-out infinite; }
.si-stick1 { background: var(--mint); }
.si-stick2 { background: var(--bubble); animation-delay: 1.2s; }
.si-hand { margin: 0; max-width: 70%; font-family: var(--font-hand); font-weight: 700; font-size: 2.5rem; line-height: 1; transform: rotate(-3deg); }
.si-route { stroke: var(--ink); stroke-opacity: .35; animation: si-dash 1.6s linear infinite; }
.si-from, .si-plane path { fill: var(--ink); }
.si-to { fill: var(--coral); stroke: var(--card); }
.si-plane { offset-rotate: auto; animation: si-fly 6s cubic-bezier(.45, .05, .35, 1) infinite; }
@keyframes si-fly { 0% { offset-distance: 0%; } 100% { offset-distance: 100%; } }
@keyframes si-drift { 0% { transform: translateX(0); } 100% { transform: translateX(3.75rem); } }
@keyframes si-bob { 0%, 100% { transform: translateY(0) rotate(-3deg); } 50% { transform: translateY(-0.375rem) rotate(-3deg); } }
@keyframes si-sun { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.06); } }
@keyframes si-dash { to { stroke-dashoffset: -40; } }

/* ---- the boarding pass ---- */
.si-pass { display: flex; align-items: center; justify-content: center; padding: 2.5rem; min-width: 0; overflow-y: auto; }
.si-card { width: min(27.5rem, 100%); border-radius: var(--r-lg); background: var(--card); box-shadow: var(--shadow-lg); overflow: hidden; animation: ga-pop .45s var(--ease-spring) both; }
.si-body { display: flex; flex-direction: column; gap: 1.125rem; padding: 1.75rem 2rem 1.5rem; }
.si-top { display: flex; align-items: center; gap: 0.625rem; }
.si-logo { display: grid; place-items: center; width: 2.25rem; height: 2.25rem; flex: none; border-radius: 0.6875rem; background: var(--coral); box-shadow: 0 0.1875rem 0 var(--coral-deep); color: var(--ink); }
.si-brand { font-family: var(--font-display); font-weight: 800; font-size: 1.375rem; letter-spacing: -0.03em; }
.si-tag { margin-left: auto; font-size: max(var(--text-min), 0.75rem); font-weight: 800; letter-spacing: .12em; color: var(--ink-3); text-align: right; }
.si-dest { margin: 0; font-family: var(--font-display); font-weight: 800; font-size: clamp(2rem, 8vw, 2.5rem); line-height: 1.05; letter-spacing: -0.03em; overflow-wrap: anywhere; }
.si-card h2 { margin: 0; font-size: 1.125rem; font-weight: 800; color: var(--coral-deep); letter-spacing: 0; }
.si-card p { margin: 0; }
#si-desc { font-size: 1rem; font-weight: 600; line-height: 1.5; color: var(--ink-2); }
.si-google, .si-dev { min-height: 3.75rem; width: 100%; justify-content: center; gap: 0.75rem; font-size: 1.125rem; font-weight: 800; }
.si-google { transition: transform .15s var(--ease-spring), box-shadow .15s; }
.si-google svg { transition: transform .25s var(--ease-spring); }
.si-google:hover svg { transform: translateX(0.375rem) rotate(-8deg); }
.si-g { display: grid; place-items: center; width: 1.875rem; height: 1.875rem; border-radius: var(--r-pill); background: var(--card); color: var(--ink); font-family: var(--font-display); font-weight: 800; font-size: 1.0625rem; }
.si-perf { margin: 0 1.5rem; border-top: 0.1875rem dashed var(--skeleton); }
.si-foot { display: flex; flex-direction: column; gap: 0.75rem; padding: 1.25rem 2rem 1.25rem; background: var(--paper-2); }
.si-stub { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) max-content; gap: 0.5rem; }
.si-cell { display: flex; flex-direction: column; gap: 0.125rem; min-width: 0; }
.si-k { font-size: max(var(--text-min), 0.6875rem); font-weight: 800; letter-spacing: .04em; white-space: nowrap; color: var(--ink-3); }
.si-v { font-family: var(--font-display); font-weight: 800; font-size: 1.25rem; line-height: 1.15; overflow-wrap: anywhere; }
.si-dev-box { font-size: max(var(--text-min), 0.875rem); font-weight: 700; color: var(--ink-2); }
.si-sum { font-size: 1rem; display: flex; align-items: center; gap: 0.375rem; min-height: 2.75rem; cursor: pointer; list-style: none; }
.si-sum::-webkit-details-marker { display: none; }
.si-sum svg { flex: none; transition: transform .2s var(--ease-out); }
.si-dev-box[open] .si-sum svg { transform: rotate(90deg); }
.si-dev-form { display: flex; flex-direction: column; gap: 0.75rem; padding-top: 0.25rem; }
.si-field { display: flex; flex-direction: column; gap: 0.125rem; padding: 0.625rem 1rem; border-radius: 1.125rem; background: var(--card); box-shadow: var(--shadow-sm); }
.si-field:focus-within { outline: 0.1875rem solid var(--ink); outline-offset: 0.1875rem; }
.si-label { font-size: max(var(--text-min), 0.8125rem); font-weight: 800; color: var(--ink-3); }
.si-field input { min-height: 2.5rem; border: 0; background: none; color: var(--ink); font: 700 1.0625rem var(--font-body); min-width: 0; }
.si-field input:focus-visible { outline: none; }
.si-field:has([aria-invalid="true"]) { box-shadow: 0 0 0 0.1875rem var(--coral-deep); }
.si-error { font-size: max(var(--text-min), 0.875rem) !important; font-weight: 800; color: var(--coral-deep) !important; }
.si-actions { display: flex; }
.si-actions .btn { min-height: 2.75rem; }
.si-note { font-size: max(var(--text-min), 0.875rem) !important; font-weight: 600; color: var(--ink-3) !important; }
.si-card a:focus-visible, .si-card button:focus-visible, .si-card summary:focus-visible { outline: 0.1875rem solid var(--ink); outline-offset: 0.1875rem; }

/* Reduced motion: everything still, the plane parked at its destination. */
@media (prefers-reduced-motion: reduce) {
  .si-sun, .si-cloud, .si-stick, .si-route, .si-plane, .si-card, .si-google, .si-google svg { animation: none !important; transition: none !important; }
  .si-plane { offset-distance: 100%; }
  .si-stick { transform: rotate(-3deg); }
  .si-sum svg { transition: none; }
}

/* Tablets and phones (<= 1000): the sky is a short banner above the pass, the pass tucks over its lower edge. */
@media (max-width: 1000px) {
  .si-wrap { display: block; height: auto; min-height: 0; }
  .si-sky { height: 17rem; }
  .si-stage-d { display: none; }
  .si-stage-m { display: block; width: min(100cqw, 166.67cqh); aspect-ratio: 5 / 3; left: 50%; transform: translateX(-50%); }
  .si-stick { max-width: 50%; }
  .si-pass { display: block; padding: 0 1rem 2rem; overflow: visible; }
  .si-card { margin: -1.5rem auto 0; position: relative; }
}

/* Phones: full-width pass */
@media (max-width: 720px) {
  .si-wrap { background: var(--card); }
  .si-sky { height: auto; aspect-ratio: 5 / 3; max-height: 15rem; }
  .si-code { font-size: 1.125rem; }
  .si-stick { min-height: 2.75rem; padding-inline: 1rem; font-size: 1rem; }
  .si-hand { font-size: 1.5rem; }
  .si-pass { padding: 0; }
  .si-card { width: 100%; margin-top: -0.75rem; border-radius: var(--r-lg) var(--r-lg) 0 0; box-shadow: none; animation: none; }
  .si-body { padding: 1.5rem 1.25rem 1.25rem; }
  .si-foot { padding: 1rem 1.25rem 2rem; }
  .si-google, .si-dev { min-height: 3.5rem; }
  .si-v { font-size: 1.125rem; }
}

/* Terms and Privacy under the buttons (F-076): each link is a tap target. */
.si-legal { display: flex; flex-wrap: wrap; align-items: center; column-gap: 0.375rem; }
.si-legal a { display: inline-flex; align-items: center; min-height: 2.75rem; color: var(--ink-2); font-weight: 700; }