/* ==========================================================================
   The Charity Gurus — Sign-in
   Our own page, on our own domain. Never the Cognito hosted UI.
   ========================================================================== */

.signin-body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(84, 200, 232, .20), transparent 60%),
    radial-gradient(760px 460px at 92% 4%, rgba(255, 127, 64, .16), transparent 62%),
    linear-gradient(165deg, var(--color-primary-dark) 0%, var(--color-primary) 58%, #6b2b81 100%);
  font-family: var(--font-stack);
}

.signin {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  gap: var(--spacing-lg);
}

.signin__card {
  width: 100%;
  max-width: 420px;
  background: var(--color-bg-white);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 60px rgba(20, 8, 26, .34);
  padding: clamp(1.75rem, 5vw, 2.5rem);
}

/* brand */
.signin__brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  margin-bottom: var(--spacing-xl);
}
.signin__brand img { border-radius: 10px; }
.signin__brand b {
  display: block;
  font-size: var(--font-size-base);
  color: var(--color-text-dark);
  letter-spacing: -.01em;
}
.signin__brand em {
  display: block;
  font-style: normal;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: .09em;
}

/* steps */
.signin__step { display: none; }
.signin__step.is-active { display: block; animation: signin-in .22s ease both; }
@keyframes signin-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.signin h1 {
  font-size: var(--font-size-3xl);
  letter-spacing: -.03em;
  margin: 0 0 var(--spacing-sm);
  color: var(--color-text-dark);
}
.signin__lede {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  margin: 0 0 var(--spacing-xl);
}
.signin__lede strong { color: var(--color-text-dark); }

/* Federated providers. Each keeps its own brand treatment — Apple's guidance
   requires their mark on black, and Google's requires the coloured glyph on a
   light button, so these are deliberately not styled as one set. */
.signin__idp {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 1rem;
  margin-bottom: var(--spacing-sm);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font: inherit;
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition-fast), transform var(--transition-fast),
              background var(--transition-fast);
}
.signin__idp:last-of-type { margin-bottom: 0; }
.signin__idp:active { transform: scale(.99); }
.signin__idp svg { width: 18px; height: 18px; flex: 0 0 18px; }

.signin__idp--apple { background: #000; color: #fff; }
.signin__idp--apple:hover { opacity: .86; }
.signin__idp--apple svg { margin-top: -2px; }

.signin__idp--google {
  background: var(--color-bg-white);
  color: #3c4043;
  border-color: #dadce0;
}
.signin__idp--google:hover { background: #f8f9fa; }

.signin__idp--facebook { background: #1877f2; color: #fff; }
.signin__idp--facebook:hover { opacity: .9; }

.signin__or {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: .1em;
}
.signin__or::before,
.signin__or::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-border-light);
}

/* fields */
.signin__field { margin-bottom: var(--spacing-md); }
.signin__field label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: 650;
  color: var(--color-text-dark);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.signin__input {
  width: 100%;
  padding: 0.8rem 0.95rem;
  font: inherit;
  font-size: var(--font-size-base);
  color: var(--color-text-dark);
  background: var(--color-bg-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.signin__input::placeholder { color: #b3aab9; }
.signin__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(84, 29, 102, .13);
}
.signin__input--code {
  text-align: center;
  font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: .34em;
  text-indent: .34em;   /* re-centre against the trailing letter-space */
  padding: 0.7rem 0.5rem;
}

.signin__submit {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
  font: inherit;
  font-size: var(--font-size-base);
  font-weight: 650;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.signin__submit:hover:not(:disabled) { background: var(--color-primary-light); }
.signin__submit:active:not(:disabled) { transform: scale(.99); }
.signin__submit:disabled { opacity: .6; cursor: progress; }

.signin__error {
  color: #c0392b;
  font-size: var(--font-size-sm);
  margin: 0 0 var(--spacing-md);
  min-height: 1.15em;
  line-height: 1.5;
}
.signin__error:empty { margin: 0; min-height: 0; }

.signin__fine {
  margin: var(--spacing-lg) 0 0;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: 1.65;
  text-align: center;
}
.signin__fine a { color: var(--color-primary-light); }

.signin__spinner {
  width: 34px; height: 34px;
  margin: 0 auto var(--spacing-lg);
  border: 3px solid var(--color-border-light);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: signin-spin .8s linear infinite;
}
@keyframes signin-spin { to { transform: rotate(360deg); } }

.signin__back { margin: 0; text-align: center; }
.signin__back a {
  color: rgba(244, 240, 246, .8);
  font-size: var(--font-size-sm);
  text-decoration: none;
}
.signin__back a:hover { color: #fff; }

@media (prefers-reduced-motion: reduce) {
  .signin__step.is-active { animation: none; }
  .signin__spinner { animation-duration: 2s; }
}