/* ===========================================
   GESTIOLEX - Login / Auth Pages
   Layout a tutto schermo con card centrata.
   =========================================== */

/* ---- Page wrapper ---- */
.login-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background:
    linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 50%, var(--brand-primary) 100%);
  background-size: 400% 400%;
  animation: loginGradientShift 12s ease infinite;
  position: relative;
}

/* Pattern geometrico sottile sopra il gradiente */
.login-page::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.06;
  background-image:
    radial-gradient(circle at 25% 25%, white 1px, transparent 1px),
    radial-gradient(circle at 75% 75%, white 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

/* ---- Card centrata ---- */
.login-card {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.1);
  padding: 2.5rem 2rem 2rem;
  position: relative;
  z-index: 1;
  animation: loginFadeIn 0.5s ease-out;
}

/* Bordo superiore brand */
.login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-primary-light), var(--brand-primary));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* ---- Logo ---- */
.login-logo {
  height: 48px;
  width: auto;
  margin-bottom: 0.75rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* ---- Titoli ---- */
.login-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.25rem;
}

.login-subtitle {
  font-size: 0.85rem;
  color: var(--gray-600);
  margin-bottom: 0;
}

/* ---- Input con icona ---- */
.login-input-group {
  position: relative;
  margin-bottom: 1rem;
}

.login-input-group > i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-500);
  font-size: 0.9rem;
  z-index: 2;
  transition: color 0.2s;
  pointer-events: none;
}

.login-input-group > input {
  width: 100%;
  padding: 0.7rem 0.75rem 0.7rem 2.5rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--gray-900);
  background: var(--gray-50);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.login-input-group > input:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(11, 94, 112, 0.15);
  background: #fff;
}

.login-input-group > input:focus + i,
.login-input-group > input:focus ~ i {
  color: var(--brand-primary);
}

/* Fix: icona cambia colore quando il campo ha focus (ordine DOM inverso) */
.login-input-group:focus-within > i {
  color: var(--brand-primary);
}

/* ---- Label per il form (se usata) ---- */
.login-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.35rem;
}

/* ---- Bottone submit ---- */
.login-btn {
  display: block;
  width: 100%;
  padding: 0.75rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-light));
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s;
  margin-top: 0.5rem;
}

.login-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(11, 94, 112, 0.4);
}

.login-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(11, 94, 112, 0.3);
}

.login-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ---- Footer (link + versione) ---- */
.login-footer {
  text-align: center;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-100);
}

.login-footer a {
  color: var(--brand-primary);
  font-size: 0.8rem;
  text-decoration: none;
  transition: color 0.2s;
}

.login-footer a:hover {
  color: var(--brand-primary-light);
  text-decoration: underline;
}

/* Link secondario (es. "Torna al login") */
.login-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--gray-600);
  font-size: 0.8rem;
  text-decoration: none;
  transition: color 0.2s;
}

.login-back-link:hover {
  color: var(--brand-primary);
}

/* ---- Versione app (in basso) ---- */
.login-version {
  position: relative;
  z-index: 1;
  margin-top: 1.5rem;
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
}

/* ---- Toggle tema (angolo superiore destro) ---- */
.login-theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 10;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.login-theme-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
}

/* ---- Alert dentro la card ---- */
.login-card .alert {
  font-size: 0.8rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

/* ---- OTP: input grande centrato ---- */
.login-otp-input {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  font-size: 1.75rem;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.5em;
  color: var(--gray-900);
  background: var(--gray-50);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.login-otp-input:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(11, 94, 112, 0.15);
  background: #fff;
}

.login-otp-input::placeholder {
  color: var(--gray-300);
  letter-spacing: 0.5em;
  font-weight: 400;
}

/* ---- Icona grande per OTP/recovery ---- */
.login-icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(11, 94, 112, 0.1), rgba(13, 122, 148, 0.15));
  color: var(--brand-primary);
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

/* ---- Checkbox custom ---- */
.login-card .form-check {
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

.login-card .form-check-label {
  font-size: 0.8rem;
  color: var(--gray-600);
}

/* ---- Resend link ---- */
.login-resend {
  text-align: center;
  margin-top: 1rem;
}

.login-resend button {
  background: none;
  border: none;
  color: var(--brand-primary);
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s;
}

.login-resend button:hover:not(:disabled) {
  color: var(--brand-primary-light);
  text-decoration: underline;
}

.login-resend button:disabled {
  color: var(--gray-500);
  cursor: not-allowed;
}

/* ===========================================
   ANIMAZIONI
   =========================================== */

@keyframes loginFadeIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes loginGradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ===========================================
   DARK MODE
   =========================================== */

[data-bs-theme="dark"] .login-page {
  background:
    linear-gradient(135deg, #0a1a20 0%, var(--brand-primary) 50%, #0a1a20 100%);
  background-size: 400% 400%;
  animation: loginGradientShift 12s ease infinite;
}

[data-bs-theme="dark"] .login-page::before {
  opacity: 0.03;
}

[data-bs-theme="dark"] .login-card {
  background: var(--gray-900);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.05);
}

[data-bs-theme="dark"] .login-card::before {
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-primary-dark), var(--brand-primary));
}

[data-bs-theme="dark"] .login-title {
  color: var(--gray-100);
}

[data-bs-theme="dark"] .login-subtitle {
  color: var(--gray-600);
}

[data-bs-theme="dark"] .login-input-group > input {
  background: var(--gray-200);
  border-color: var(--gray-300);
  color: var(--gray-100);
}

[data-bs-theme="dark"] .login-input-group > input:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(77, 208, 225, 0.15);
  background: var(--gray-50);
}

[data-bs-theme="dark"] .login-input-group > input::placeholder {
  color: var(--gray-600);
}

[data-bs-theme="dark"] .login-input-group:focus-within > i {
  color: var(--brand-primary);
}

[data-bs-theme="dark"] .login-btn {
  background: linear-gradient(135deg, var(--brand-primary-light), var(--brand-primary));
}

[data-bs-theme="dark"] .login-btn:hover {
  box-shadow: 0 6px 20px rgba(77, 208, 225, 0.3);
}

[data-bs-theme="dark"] .login-footer {
  border-top-color: var(--gray-300);
}

[data-bs-theme="dark"] .login-footer a {
  color: var(--brand-primary);
}

[data-bs-theme="dark"] .login-footer a:hover {
  color: var(--brand-primary-light);
}

[data-bs-theme="dark"] .login-back-link {
  color: var(--gray-600);
}

[data-bs-theme="dark"] .login-back-link:hover {
  color: var(--brand-primary);
}

[data-bs-theme="dark"] .login-otp-input {
  background: var(--gray-200);
  border-color: var(--gray-300);
  color: var(--gray-100);
}

[data-bs-theme="dark"] .login-otp-input:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(77, 208, 225, 0.15);
  background: var(--gray-50);
}

[data-bs-theme="dark"] .login-otp-input::placeholder {
  color: #4d5359;
}

[data-bs-theme="dark"] .login-icon-circle {
  background: linear-gradient(135deg, rgba(77, 208, 225, 0.1), rgba(38, 198, 218, 0.15));
  color: var(--brand-primary);
}

[data-bs-theme="dark"] .login-card .form-check-label {
  color: var(--gray-500);
}

[data-bs-theme="dark"] .login-resend button {
  color: var(--brand-primary);
}

[data-bs-theme="dark"] .login-resend button:hover:not(:disabled) {
  color: var(--brand-primary-light);
}

[data-bs-theme="dark"] .login-resend button:disabled {
  color: #4d5359;
}

[data-bs-theme="dark"] .login-label {
  color: var(--gray-500);
}

[data-bs-theme="dark"] .login-theme-toggle {
  background: rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.1);
}

/* ===========================================
   RESPONSIVE
   =========================================== */

@media (max-width: 480px) {
  .login-page {
    padding: 1rem 0.75rem;
  }

  .login-card {
    padding: 2rem 1.25rem 1.5rem;
    border-radius: var(--radius-lg);
  }

  .login-logo {
    height: 40px;
  }

  .login-title {
    font-size: 1.15rem;
  }
}

/* ===========================================
   PREFERS REDUCED MOTION
   =========================================== */

@media (prefers-reduced-motion: reduce) {
  .login-card {
    animation: none;
  }
  .login-page {
    animation: none;
  }
}