:root {
  color-scheme: light;
  --page: #092f54;
  --surface: #fff;
  --text: #173149;
  --muted: #50677b;
  --line: #bdcbd8;
  --brand: #245c88;
  --brand-dark: #17466f;
  --field: #f7f9fc;
  --focus: #2c6da8;
  --focus-wash: #edf5fc;
  --error: #a42d38;
  --motion: 180ms;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --ambient-cycle: 16s;
  font: 400 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body {
  position: relative;
  isolation: isolate;
  margin: 0;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 40px 24px;
  background: var(--page);
  color: var(--text);
}
body::before {
  content: "";
  position: fixed;
  z-index: -2;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at 18% 30%, #2e72a926, transparent 55%), radial-gradient(ellipse at 85% 75%, #287eab20, transparent 50%);
}
.signin-dots {
  position: fixed;
  z-index: -1;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.signin-scene { width: min(100%, 448px); }
.signin {
  position: relative;
  isolation: isolate;
  width: min(100%, 448px);
  padding: 36px;
  border: 1px solid #ffffffb3;
  border-radius: 16px;
  background: var(--surface);
  box-shadow: 0 28px 70px #00122570, 0 6px 20px #00172d30, 0 0 0 1px #8bbfe82b;
  animation: enter 240ms var(--ease);
}
.signin::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  box-shadow: 0 0 70px 10px #62aee65c;
  animation: ambient-glow var(--ambient-cycle) ease-in-out infinite alternate;
}
.brand { display: flex; align-items: center; justify-content: center; margin-bottom: 28px; }
.brand-logo { display: block; width: 284px; max-width: 100%; height: auto; }
.signin-heading { margin-bottom: 28px; }
h1 { margin: 0; font-size: 28px; font-weight: 650; line-height: 1.25; letter-spacing: -.025em; }
p { margin: 0; color: var(--muted); }
.field { display: grid; gap: 8px; margin-bottom: 22px; }
label { font-size: 14px; font-weight: 600; transition: color var(--motion); }
input, button { font: inherit; }
input {
  display: block;
  width: 100%;
  min-width: 0;
  min-height: 52px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--field);
  color: var(--text);
  caret-color: var(--focus);
  transition: border-color var(--motion), background-color var(--motion), box-shadow var(--motion);
}
input:not(:placeholder-shown) { border-color: #8da9bf; background: #f3f7fb; }
input::placeholder { color: #5c7287; opacity: 1; }
.field:focus-within label { color: var(--brand-dark); }
input:focus {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-color: var(--focus);
  background: var(--focus-wash);
  box-shadow: 0 3px 10px #16476c0d;
}
input[aria-invalid="true"] { border-color: var(--error); }
input[aria-invalid="true"]:focus { outline-color: var(--error); }
input::selection { color: var(--text); background: #cce4f8; }
input:-webkit-autofill { -webkit-text-fill-color: var(--text); box-shadow: 0 0 0 100px var(--focus-wash) inset; }
.password-control { position: relative; }
.password-control input { padding-right: 54px; }
.password-reveal {
  position: absolute;
  inset: 4px 4px 4px auto;
  display: grid;
  place-items: center;
  width: 44px;
  padding: 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color var(--motion), background-color var(--motion);
}
.eye { width: 22px; height: 22px; }
.eye-slash { opacity: 0; transition: opacity var(--motion); }
.password-reveal[aria-pressed="true"] .eye-slash { opacity: 1; }
button:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }
#signin-status {
  min-height: 22px;
  margin: -4px 0 14px;
  color: var(--error);
  font-size: 13px;
  line-height: 1.5;
  overflow-wrap: anywhere;
  transition: color var(--motion);
}
form[data-state="success"] #signin-status { color: var(--brand-dark); }
.signin-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  min-height: 52px;
  padding: 13px 18px;
  border: 0;
  border-radius: 9px;
  background: var(--brand);
  color: #fff;
  font-weight: 650;
  cursor: pointer;
  transition: background-color var(--motion), transform 120ms var(--ease), box-shadow var(--motion);
}
.signin-submit:active:not(:disabled) { transform: scale(.99); }
.signin-submit:disabled { cursor: progress; }
.button-icon { position: relative; display: block; flex: 0 0 auto; width: 20px; height: 20px; }
.button-icon > * { position: absolute; inset: 0; width: 20px; height: 20px; transition: opacity var(--motion), transform var(--motion) var(--ease); }
.arrow { opacity: 1; }
.pending { opacity: 0; border: 2px solid #ffffff70; border-top-color: #fff; border-radius: 50%; }
.check { opacity: 0; transform: scale(.8); }
form[data-state="pending"] .arrow, form[data-state="success"] .arrow { opacity: 0; transform: translateX(3px); }
form[data-state="pending"] .pending { opacity: 1; animation: spin 800ms linear infinite; }
form[data-state="success"] .check { opacity: 1; transform: scale(1); }
form[data-state="success"] .signin-submit { background: var(--brand-dark); }
.support { margin-top: 26px; padding-top: 22px; border-top: 1px solid #e0e7ee; font-size: 13px; line-height: 1.6; }
::selection { color: var(--text); background: #cce4f8; }
@media (hover: hover) and (pointer: fine) {
  .signin-submit:hover:not(:disabled) { background: var(--brand-dark); box-shadow: 0 4px 12px #113e6326; }
  .password-reveal:hover { background: #e8f0f7; color: var(--brand-dark); }
}
@keyframes ambient-glow { from { opacity: .2; } to { opacity: .7; } }
@keyframes enter { from { opacity: .5; transform: translateY(5px); } to { opacity: 1; transform: none; } }
@keyframes spin { to { transform: rotate(360deg); } }
@media (max-width: 480px) {
  body { padding: 28px 18px; }
  .signin { padding: 28px 24px; }
  .brand { margin-bottom: 28px; }
}
@media (max-height: 620px) {
  body { place-items: start center; padding-block: 20px; }
}
@media (prefers-color-scheme: dark) { :root { --page: #062643; } }
@media (prefers-reduced-motion: reduce) {
  :root { --motion: 0ms; }
  .signin, .pending, .signin::before { animation: none !important; }
  .signin::before { opacity: .3; }
  .signin-submit, .button-icon > * { transition: none; transform: none !important; }
}