/* Pagine pubbliche di autenticazione: autonome dal layout Bootstrap. */
*, *::before, *::after { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text-2);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-text); text-decoration: none; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.screen {
  display: none;
  min-height: 100dvh;
  opacity: 0;
  transition: opacity .18s ease;
}
.screen.active { display: block; opacity: 1; }
.screen.active.screen-entering { opacity: 0; }
.auth-screen { background: var(--color-surface); }

.login-hero {
  min-height: 215px;
  padding: 44px 28px 70px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--accent-light);
  text-align: center;
}
.login-logo {
  width: 120px;
  max-width: 78%;
  max-height: 92px;
  object-fit: contain;
  filter: drop-shadow(0 6px 14px rgba(52, 64, 80, .12));
}
.login-heading {
  margin-top: 8px;
  color: var(--accent-dark);
  font-family: var(--font-head);
  font-size: 34px;
  font-weight: 700;
}
.login-body {
  width: min(100%, 480px);
  margin: -38px auto 0;
  padding: 0 28px 40px;
  position: relative;
  text-align: center;
}
/* h1 con l'aspetto del sottotitolo: e' il titolo della schermata e il bersaglio
   del focus dopo un cambio schermata (tabindex="-1", v. common.js). */
.login-sub { margin: 0; padding-top: 20px; color: var(--color-text-3); font-size: 13px; font-weight: 400; line-height: 1.4; }
.login-sub:focus { outline: none; }
.login-sub:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.form-error {
  margin: 0 0 14px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: var(--color-danger-bg, #fdecec);
  color: var(--color-danger, #b42318);
  font-size: 13px;
  line-height: 1.4;
}
.input[aria-invalid="true"] { border-color: var(--color-danger, #b42318); }
.btn:focus-visible, .field-icon-btn:focus-visible, .auth-back:focus-visible,
.legal-sheet-close:focus-visible, a:focus-visible, .toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.login-form {
  margin-top: 22px;
  padding: 24px;
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  text-align: left;
}
.login-row {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-bottom: 20px;
  color: var(--color-text-3);
  font-size: 12px;
}
.login-row .forgot { color: var(--accent-text); font-weight: 600; }

.field { margin-bottom: 14px; }
.field label {
  display: flex;
  margin-bottom: 5px;
  color: var(--color-text-2);
  font-size: 12px;
  font-weight: 600;
}
.input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  background: var(--color-surface);
  color: var(--color-text-1);
  font-size: 13px;
}
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
.field-icon-wrap { position: relative; }
.field-icon-wrap .input { padding-right: 44px; }
.field-icon-btn {
  width: 44px;
  height: 44px;
  padding: 0;
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  color: var(--color-text-4);
  cursor: pointer;
}
.field-hint { margin-top: 4px; color: var(--color-text-4); font-size: 12px; line-height: 1.45; }

.btn {
  min-height: 44px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 0;
  border-radius: 160px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
}
.btn-primary { background: var(--accent-gradient); color: #fff; }
.btn-secondary { border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text-2); }
.btn-block { width: 100%; }
.btn-block + .btn-block { margin-top: 10px; }
.btn:disabled { cursor: not-allowed; opacity: .45; }
.btn:active { transform: scale(.98); }

.auth-back {
  width: 44px;
  height: 44px;
  margin: -10px 0 6px -10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--accent-text);
  cursor: pointer;
}
.chk-wrap { gap: 8px; align-items: flex-start; line-height: 1.45; }
.toggle { width: 20px; height: 20px; margin: 0; flex: 0 0 auto; accent-color: var(--accent); }

.app-toast {
  max-width: calc(100vw - 32px);
  padding: 12px 18px;
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 1000;
  transform: translate(-50%, 18px);
  border-radius: 160px;
  background: var(--color-text-1);
  box-shadow: var(--shadow-card);
  color: #fff;
  font-size: 13px;
  opacity: 0;
  transition: opacity .2s, transform .2s;
}
.app-toast.show { opacity: 1; transform: translate(-50%, 0); }
.app-toast.is-err { background: var(--color-danger); }

.confirm-back {
  padding: 20px;
  position: fixed;
  inset: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, .42);
  opacity: 0;
  transition: opacity .2s;
}
.confirm-back.show { opacity: 1; }
.legal-sheet {
  width: min(100%, 720px);
  max-height: calc(100dvh - 40px);
  padding: 18px;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}
.legal-sheet-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.legal-sheet-title { margin: 0; color: var(--color-text-1); font-family: var(--font-head); font-size: 18px; }
.legal-sheet-close {
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--color-text-2);
  cursor: pointer;
  font-size: 20px;
}
.legal-sheet-body { min-height: 0; overflow-y: auto; }

.legal-page { max-width: 720px; margin: 0 auto; padding: 40px 24px 64px; }
.legal-page h1 { margin: 0 0 24px; color: var(--color-text-1); font-family: var(--font-head); font-size: 24px; }
.legal-page p { color: var(--color-text-2); font-size: 14px; line-height: 1.6; }
.legal-pdf-fallback { text-align: center; }

.mt-md { margin-top: 16px; }
.mt-lg { margin-top: 18px; }

@media (min-width: 640px) {
  /* Card centrata in verticale (P3-20): body flex a tutta altezza e margin:auto
     sulla card. A differenza di justify-content:center, con viewport basse la
     card parte dall'alto e la pagina scorre, senza tagliarne la testa. */
  body {
    background: var(--color-bg);
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    padding: max(24px, env(safe-area-inset-top)) 0 max(24px, env(safe-area-inset-bottom));
  }
  .auth-screen { width: 540px; min-height: 0; margin: auto; overflow: hidden; border-radius: var(--radius-xl); box-shadow: var(--shadow-card); }
  /* Su desktop la card esterna e' l'unica: il form non ha piu' sfondo/ombra/raggio
     propri e non sovrappone piu' l'hero (su mobile resta il design a tutto schermo). */
  .login-hero { padding-bottom: 44px; }
  .login-body { margin-top: 0; }
  .login-form { padding: 0; border-radius: 0; background: none; box-shadow: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}