/* The sign-in page, on the ai stylesheet tokens: the brand panel and the form. */
.signin-body { overflow-x: hidden; overflow-y: auto; }

.split { min-height: 100%; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); }

/* Brand panel: chrome in both themes, so the cream marks always sit on navy. */
.brand { position: relative; overflow: hidden; background: var(--chrome); color: var(--on-chrome); display: flex; flex-direction: column; padding: 32px max(32px, env(safe-area-inset-left, 0px)) 0; }
.s-logo { display: flex; align-items: center; gap: 4px; text-decoration: none; color: var(--on-chrome); }
.s-logo img { width: 80px; height: 44px; display: block; object-fit: contain; }
.s-logo b { font-family: var(--mono); font-weight: 500; color: var(--amber); font-size: 18px; }
.art { position: relative; flex: 1; display: grid; place-items: center; padding: 32px 0; }
.sun { position: absolute; width: min(420px, 82%); aspect-ratio: 1; border-radius: 50%; opacity: .16; pointer-events: none;
  background: linear-gradient(180deg, var(--amber), var(--ember) 55%, var(--rust));
  -webkit-mask: linear-gradient(var(--chrome) 55%, transparent 92%); mask: linear-gradient(var(--chrome) 55%, transparent 92%); }
.sun::after { content: ""; position: absolute; inset: 0; border-radius: 50%; background: repeating-linear-gradient(180deg, transparent 0 30px, var(--chrome) 30px 37px); }
.s-badge { position: relative; width: min(320px, 72%); height: auto; display: block; }
.brand-copy { position: relative; margin: 0 0 28px; max-width: 34ch; color: var(--on-chrome-dim); font-size: 15.5px; }
.brand-copy b { color: var(--on-chrome); font-weight: 600; display: block; font-size: 17px; margin-bottom: 2px; }
.s-stripe { height: 4px; margin: 0 calc(-1 * max(32px, env(safe-area-inset-left, 0px))); background: linear-gradient(90deg, var(--amber) 0 34%, var(--ember) 34% 67%, var(--rust) 67%); }

/* Form side */
.s-side { display: flex; flex-direction: column; padding: 20px max(32px, env(safe-area-inset-right, 0px)) 24px 32px; min-width: 0; }
.top { display: flex; justify-content: flex-end; }
.theme { display: inline-flex; align-items: center; gap: 6px; background: transparent; border: 1px solid var(--edge); color: var(--dust); border-radius: 999px; padding: 4px 11px; font-size: 13px; cursor: pointer; }
.theme:hover { color: var(--cream); border-color: var(--dust); }
.theme svg { width: 14px; height: 14px; }
.wrap { width: 100%; max-width: 400px; margin: auto; padding: 32px 0; }
.host { font-family: var(--mono); font-size: 13px; color: var(--dust); margin: 0 0 10px; }
.host b { color: var(--amber-ink); font-weight: 500; }
h1 { font-size: 30px; line-height: 1.15; margin: 0 0 24px; font-weight: 700; overflow-wrap: anywhere; }
h1 span { color: var(--sky); }
.sub { color: var(--sand); margin: 10px 0 24px; font-size: 15.5px; }

.alert { display: flex; gap: 10px; align-items: flex-start; background: var(--tint-bad); border: 1px solid var(--line-bad); color: var(--cream); border-radius: 10px; padding: 10px 12px; font-size: 14.5px; margin-bottom: 18px; }
.alert svg { width: 18px; height: 18px; flex: none; margin-top: 2px; color: var(--bad-ink); }

form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field > label { font-size: 14px; font-weight: 500; color: var(--sand); }
.input { display: flex; align-items: center; background: var(--field); border: 1px solid var(--edge); border-radius: 9px; min-width: 0; }
.input:focus-within { border-color: var(--sky); }
.input[data-invalid="true"] { border-color: var(--line-bad); }
.input input { flex: 1; min-width: 0; background: transparent; border: 0; outline: none; padding: 11px 12px; font-size: 16px; color: var(--cream); }
.reveal { background: transparent; border: 0; color: var(--dust); font-size: 13px; padding: 6px 12px; cursor: pointer; border-radius: 6px; }
.reveal:hover { color: var(--cream); }
.hint { font-size: 13px; color: var(--dust); margin: 0; }

details.adv { border-top: 1px solid var(--edge); padding-top: 12px; }
details.adv > summary { cursor: pointer; font-size: 14px; color: var(--sand); list-style: none; display: inline-flex; align-items: center; gap: 6px; border-radius: 6px; }
details.adv > summary::-webkit-details-marker { display: none; }
details.adv > summary svg { width: 12px; height: 12px; transition: transform .15s; }
details.adv[open] > summary svg { transform: rotate(90deg); }
details.adv .field { margin-top: 12px; }

.s-btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; border-radius: 9px; padding: 11px 16px; font-weight: 600; font-size: 15px; border: 1px solid transparent; cursor: pointer; line-height: 1.2; width: 100%; text-decoration: none; }
.s-btn-hot { background: var(--accent); color: var(--on-accent); }
.s-btn-hot:hover { background: var(--accent-hover); }
.btn-ghost { background: var(--deck); border-color: var(--edge); color: var(--cream); }
.btn-ghost:hover { border-color: var(--dust); }
.s-btn:disabled { opacity: .7; cursor: progress; }
.s-btn svg { width: 17px; height: 17px; }
.spin { width: 15px; height: 15px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.or { display: flex; align-items: center; gap: 12px; color: var(--dust); font-size: 13px; margin: 20px 0; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--edge); }
.note { margin: 24px 0 0; padding-top: 16px; border-top: 1px solid var(--edge); font-size: 14px; color: var(--sand); }
.note p { margin: 0 0 6px; }
.demo { margin: 18px 0 0; font-size: 12.5px; color: var(--dust); font-family: var(--mono); }
.s-linkish { background: transparent; border: 0; padding: 0; color: var(--sky); text-decoration: underline; text-underline-offset: 2px; cursor: pointer; font-family: var(--mono); font-size: 12.5px; }
.s-foot { font-size: 12.5px; color: var(--dust); text-align: center; }

@media (max-width: 860px) {
  .split { grid-template-columns: minmax(0, 1fr); }
  .brand { padding: 14px max(16px, env(safe-area-inset-right, 0px)) 0 max(16px, env(safe-area-inset-left, 0px)); }
  .art, .brand-copy { display: none; }
  .s-logo { padding-bottom: 12px; }
  .s-logo img { width: 64px; height: 35px; }
  .s-stripe { margin: 0 calc(-1 * max(16px, env(safe-area-inset-right, 0px))) 0 calc(-1 * max(16px, env(safe-area-inset-left, 0px))); }
  .s-side { padding: 14px max(16px, env(safe-area-inset-right, 0px)) 20px max(16px, env(safe-area-inset-left, 0px)); }
  .wrap { margin: 0 auto; padding: 16px 0 28px; }
  h1 { font-size: 26px; }
}
@media (prefers-reduced-motion: reduce) {
  .spin { animation-duration: 2.4s; }
  details.adv > summary svg { transition: none; }
}