.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100vh;
  background: linear-gradient(135deg, var(--primary) 0%, #0a1a3a 100%);
  position: relative;
  overflow: hidden;
}

.login-screen::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(76,154,255,0.08) 0%, transparent 70%);
  top: -200px;
  right: -200px;
  border-radius: 50%;
}

.login-box {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  padding: 40px 36px;
  border-radius: 20px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
  opacity: 0;
  transform: translateY(18px) scale(0.995);
  animation: loginIn 520ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes loginIn {
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.login-box .logo {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  text-align: center;
  margin-bottom: 4px;
}

.login-box .logo span {
  color: var(--accent);
}

.login-box .sub {
  text-align: center;
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 28px;
}

.login-box .form-group {
  margin-bottom: 16px;
}

.login-box .form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: 4px;
}

.login-box .form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  font-size: 14px;
  background: var(--gray-50);
  outline: none;
  transition: var(--transition);
}

.login-box .form-group input:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 4px rgba(76,154,255,0.1);
}

/* password wrapper and toggle button */
.login-box .password-wrapper {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
}
.login-box .password-wrapper input[type="password"],
.login-box .password-wrapper input[type="text"] {
  width: 100%;
  padding-right: 60px; /* space for absolute toggle */
  box-sizing: border-box;
}
.login-box .btn-password-toggle {
  position: absolute;
  right: 12px;
  top: 0;
  bottom: 0;
  margin: auto 0;
  background: none !important;
  border: 0 !important;
  box-shadow: none !important;
  outline: none !important;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  font-size: 14px;
  color: inherit;
  width: auto;
  height: auto;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0;
  border-radius: 0;
  z-index: 5;
}
.login-box .btn-password-toggle:hover { background: transparent; }
.login-box .btn-password-toggle:focus { outline: none; box-shadow: none; }
.login-box .remember-group { margin-top: 6px; }
.login-box .remember-group { margin-top: 8px; }
.login-box .remember-label { display:flex; align-items:center; gap:8px; font-size:13px; color:var(--gray-700); }
.login-box .remember-label input[type="checkbox"] { width: auto; height: auto; margin: 0; }

.login-box button {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  border: none;
  border-radius: 10px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px;
  box-shadow: 0 4px 12px rgba(15,43,92,0.3);
}

.login-box button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(15,43,92,0.4);
}

.login-box .error-msg {
  color: var(--danger);
  font-size: 13px;
  margin-top: 12px;
  display: none;
  text-align: center;
}